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authorMitya Selivanov <automainint@guattari.tech>2023-09-25 20:02:08 +0200
committerMitya Selivanov <automainint@guattari.tech>2023-09-25 20:02:08 +0200
commit0d9781dafdfda9569a2373216ace013663f0d858 (patch)
tree14ebcf10eb0e32a02190ce4c80363979f9f7216d /source
parente747b343c332907110dad26e15c20daf3d7d7125 (diff)
downloadsaw-0d9781dafdfda9569a2373216ace013663f0d858.zip
Sokol and nanovg setup
Diffstat (limited to 'source')
-rw-r--r--source/saw/_exe.c2
-rw-r--r--source/saw/_lib.c (renamed from source/tests/_static.c)0
-rw-r--r--source/saw/main.c83
-rw-r--r--source/tests/_exe.c2
-rw-r--r--source/tests/main.test.c9
-rw-r--r--source/thirdparty/android.c68
-rw-r--r--source/thirdparty/android.h26
-rw-r--r--source/thirdparty/fontstash.h1790
-rw-r--r--source/thirdparty/nanovg.c2960
-rw-r--r--source/thirdparty/nanovg.h708
-rw-r--r--source/thirdparty/nanovg_gl.c1651
-rw-r--r--source/thirdparty/nanovg_gl.h92
-rw-r--r--source/thirdparty/sokol_app.h11518
13 files changed, 18908 insertions, 1 deletions
diff --git a/source/saw/_exe.c b/source/saw/_exe.c
new file mode 100644
index 0000000..721afb9
--- /dev/null
+++ b/source/saw/_exe.c
@@ -0,0 +1,2 @@
+#include "_lib.c"
+#include "main.c"
diff --git a/source/tests/_static.c b/source/saw/_lib.c
index 8d1c8b6..8d1c8b6 100644
--- a/source/tests/_static.c
+++ b/source/saw/_lib.c
diff --git a/source/saw/main.c b/source/saw/main.c
new file mode 100644
index 0000000..691307a
--- /dev/null
+++ b/source/saw/main.c
@@ -0,0 +1,83 @@
+// TODO
+// - Always use OpenGL ES in both sokol and nanovg.
+// - Custom OpenGL loader.
+//
+
+#ifdef __EMSCRIPTEN__
+# define SOKOL_GLES3
+# define NANOVG_GLES3 1
+#else
+# define SOKOL_GLCORE33
+# define NANOVG_GL3 1
+#endif
+
+#include "../kit/time.h" // for timespec_get
+
+// sokol
+#define SOKOL_APP_IMPL
+#include "../thirdparty/sokol_app.h"
+
+// nanovg
+#include "../thirdparty/nanovg.c"
+#include "../thirdparty/nanovg_gl.c"
+#include "../thirdparty/android.c"
+
+// miniaudio
+#define MINIAUDIO_IMPLEMENTATION
+#include "../thirdparty/miniaudio.h"
+
+static struct NVGcontext *saw_nvg;
+
+static void saw_init(void) {
+#ifdef SOKOL_GLCORE33
+ saw_nvg = nvgCreateGL3(NVG_ANTIALIAS | NVG_STENCIL_STROKES);
+#else
+ saw_nvg = nvgCreateGLES3(NVG_ANTIALIAS | NVG_STENCIL_STROKES);
+#endif
+}
+
+static void saw_frame(void) {
+ int width = sapp_width();
+ int height = sapp_height();
+
+ glViewport(0, 0, width, height);
+ glClearColor(.3f, .2f, .4f, 1.f);
+ glClearDepthf(1.f);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT |
+ GL_STENCIL_BUFFER_BIT);
+
+ nvgBeginFrame(saw_nvg, width, height, sapp_dpi_scale());
+
+ nvgBeginPath(saw_nvg);
+ nvgRect(saw_nvg, 100, 100, 300, 200);
+ nvgFillColor(saw_nvg, nvgRGBA(255, 192, 0, 255));
+ nvgFill(saw_nvg);
+
+ nvgEndFrame(saw_nvg);
+}
+
+static void saw_cleanup(void) {
+#ifdef SOKOL_GLCORE33
+ nvgDeleteGL3(saw_nvg);
+#else
+ nvgDeleteGLES3(saw_nvg);
+#endif
+}
+
+static void saw_event(sapp_event const *event) { }
+
+char const *__lsan_default_suppressions() {
+ // There is leaks in NVidia driver on Linux.
+ return "leak:nvidia";
+}
+
+sapp_desc sokol_main(int argc, char **argv) {
+ return (sapp_desc) {
+ .width = 1280,
+ .height = 720,
+ .init_cb = saw_init,
+ .frame_cb = saw_frame,
+ .cleanup_cb = saw_cleanup,
+ .event_cb = saw_event,
+ };
+}
diff --git a/source/tests/_exe.c b/source/tests/_exe.c
new file mode 100644
index 0000000..39412dd
--- /dev/null
+++ b/source/tests/_exe.c
@@ -0,0 +1,2 @@
+#include "../saw/_lib.c"
+#include "main.test.c"
diff --git a/source/tests/main.test.c b/source/tests/main.test.c
index 8d1c8b6..14d3249 100644
--- a/source/tests/main.test.c
+++ b/source/tests/main.test.c
@@ -1 +1,8 @@
-
+#define KIT_TEST_IMPLEMENTATION
+#include "../kit/kit_test.h"
+
+int main(int argc, char **argv) {
+ return run_tests(argc, argv);
+}
+
+#undef KIT_TEST_FILE
diff --git a/source/thirdparty/android.c b/source/thirdparty/android.c
new file mode 100644
index 0000000..15d1e60
--- /dev/null
+++ b/source/thirdparty/android.c
@@ -0,0 +1,68 @@
+// See: http://www.50ply.com/blog/2013/01/19/loading-compressed-android-assets-with-file-pointer/
+// See: https://github.com/android/ndk/issues/562
+
+#include "android.h"
+#include "nanovg.h"
+
+#if defined(__ANDROID__)
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <android/log.h>
+#include <android/asset_manager.h>
+
+#define LOGV(...) (__android_log_print(ANDROID_LOG_VERBOSE, "NanoVG Demo", __VA_ARGS__))
+#define LOGI(...) (__android_log_print(ANDROID_LOG_INFO, "NanoVG Demo", __VA_ARGS__))
+#define LOGW(...) (__android_log_print(ANDROID_LOG_WARN, "NanoVG Demo", __VA_ARGS__))
+#define LOGE(...) (__android_log_print(ANDROID_LOG_ERROR, "NanoVG Demo", __VA_ARGS__))
+#define LOGF(...) (__android_log_print(ANDROID_LOG_FATAL, "NanoVG Demo", __VA_ARGS__))
+
+static int android_read(void * cookie, char * buf, int size) {
+ return AAsset_read((AAsset*)cookie, buf, size);
+}
+
+static int android_write(void * cookie, const char * buf, int size) {
+ (void)cookie; (void)buf; (void)size; // unused
+ return EACCES; // can't provide write access to the apk
+}
+
+static fpos_t android_seek(void * cookie, fpos_t offset, int whence) {
+ return AAsset_seek((AAsset*)cookie, offset, whence);
+}
+
+static int android_close(void * cookie) {
+ AAsset_close((AAsset*)cookie);
+ return 0;
+}
+
+AAssetManager * android_asset_manager = NULL;
+void nvgSetAndroidAssetManager(AAssetManager * manager) {
+ android_asset_manager = manager;
+}
+
+FILE * android_fopen(const char * fname, const char * mode) {
+ if (mode[0] == '/') { // absolute path
+ }
+
+ if (strchr(mode, 'w')) { // for writing
+ LOGE("Unable to open asset (trying to write): '%s' ('%s')", fname, mode);
+ return NULL;
+ }
+
+ if (!android_asset_manager) {
+ LOGE("Unable to open asset (unknown asset manager): '%s' ('%s')", fname, mode);
+ return NULL;
+ }
+
+ AAsset* asset = AAssetManager_open(android_asset_manager, fname, 0);
+ if (!asset) {
+ LOGW("Unable to open asset: '%s' ('%s')", fname, mode);
+ return NULL;
+ }
+
+ LOGV("Opening asset: '%s' ('%s')", fname, mode);
+ return funopen(asset, android_read, android_write, android_seek, android_close);
+}
+
+#endif
diff --git a/source/thirdparty/android.h b/source/thirdparty/android.h
new file mode 100644
index 0000000..0bf20ce
--- /dev/null
+++ b/source/thirdparty/android.h
@@ -0,0 +1,26 @@
+// See: http://www.50ply.com/blog/2013/01/19/loading-compressed-android-assets-with-file-pointer/
+
+#ifndef NANOVG_ANDROID_H_04F2956C_D65D_11EA_852A_07298A1173F1
+#define NANOVG_ANDROID_H_04F2956C_D65D_11EA_852A_07298A1173F1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__ANDROID__)
+
+#include <stdio.h>
+#include <android/asset_manager.h>
+
+void android_fopen_set_asset_manager(AAssetManager* manager);
+FILE* android_fopen(const char* fname, const char* mode);
+
+#define fopen(name, mode) android_fopen(name, mode)
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NANOVG_ANDROID_H_04F2956C_D65D_11EA_852A_07298A1173F1
diff --git a/source/thirdparty/fontstash.h b/source/thirdparty/fontstash.h
new file mode 100644
index 0000000..29d5caf
--- /dev/null
+++ b/source/thirdparty/fontstash.h
@@ -0,0 +1,1790 @@
+//
+// Copyright (c) 2009-2013 Mikko Mononen memon@inside.org
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+// 1. The origin of this software must not be misrepresented; you must not
+// claim that you wrote the original software. If you use this software
+// in a product, an acknowledgment in the product documentation would be
+// appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+// misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+//
+
+#ifndef FONTSTASH_H_F380F1FA_CDA3_11EA_AF58_0FE5E5086B14
+#define FONTSTASH_H_F380F1FA_CDA3_11EA_AF58_0FE5E5086B14
+
+#define FONS_INVALID -1
+
+enum FONSflags {
+ FONS_ZERO_TOPLEFT = 1,
+ FONS_ZERO_BOTTOMLEFT = 2,
+};
+
+enum FONSalign {
+ // Horizontal align
+ FONS_ALIGN_LEFT = 1<<0, // Default
+ FONS_ALIGN_CENTER = 1<<1,
+ FONS_ALIGN_RIGHT = 1<<2,
+ // Vertical align
+ FONS_ALIGN_TOP = 1<<3,
+ FONS_ALIGN_MIDDLE = 1<<4,
+ FONS_ALIGN_BOTTOM = 1<<5,
+ FONS_ALIGN_BASELINE = 1<<6, // Default
+};
+
+enum FONSglyphBitmap {
+ FONS_GLYPH_BITMAP_OPTIONAL = 1,
+ FONS_GLYPH_BITMAP_REQUIRED = 2,
+};
+
+enum FONSerrorCode {
+ // Font atlas is full.
+ FONS_ATLAS_FULL = 1,
+ // Scratch memory used to render glyphs is full, requested size reported in 'val', you may need to bump up FONS_SCRATCH_BUF_SIZE.
+ FONS_SCRATCH_FULL = 2,
+ // Calls to fonsPushState has created too large stack, if you need deep state stack bump up FONS_MAX_STATES.
+ FONS_STATES_OVERFLOW = 3,
+ // Trying to pop too many states fonsPopState().
+ FONS_STATES_UNDERFLOW = 4,
+};
+
+struct FONSparams {
+ int width, height;
+ unsigned char flags;
+ void* userPtr;
+ int (*renderCreate)(void* uptr, int width, int height);
+ int (*renderResize)(void* uptr, int width, int height);
+ void (*renderUpdate)(void* uptr, int* rect, const unsigned char* data);
+ void (*renderDraw)(void* uptr, const float* verts, const float* tcoords, const unsigned int* colors, int nverts);
+ void (*renderDelete)(void* uptr);
+};
+typedef struct FONSparams FONSparams;
+
+struct FONSquad
+{
+ float x0,y0,s0,t0;
+ float x1,y1,s1,t1;
+};
+typedef struct FONSquad FONSquad;
+
+struct FONStextIter {
+ float x, y, nextx, nexty, scale, spacing;
+ unsigned int codepoint;
+ short isize, iblur;
+ struct FONSfont* font;
+ int prevGlyphIndex;
+ const char* str;
+ const char* next;
+ const char* end;
+ unsigned int utf8state;
+ int bitmapOption;
+};
+typedef struct FONStextIter FONStextIter;
+
+typedef struct FONScontext FONScontext;
+
+// Constructor and destructor.
+FONScontext* fonsCreateInternal(FONSparams* params);
+void fonsDeleteInternal(FONScontext* s);
+
+void fonsSetErrorCallback(FONScontext* s, void (*callback)(void* uptr, int error, int val), void* uptr);
+// Returns current atlas size.
+void fonsGetAtlasSize(FONScontext* s, int* width, int* height);
+// Expands the atlas size.
+int fonsExpandAtlas(FONScontext* s, int width, int height);
+// Resets the whole stash.
+int fonsResetAtlas(FONScontext* stash, int width, int height);
+
+// Add fonts
+int fonsAddFont(FONScontext* s, const char* name, const char* path, int fontIndex);
+int fonsAddFontMem(FONScontext* s, const char* name, unsigned char* data, int ndata, int freeData, int fontIndex);
+int fonsGetFontByName(FONScontext* s, const char* name);
+
+// State handling
+void fonsPushState(FONScontext* s);
+void fonsPopState(FONScontext* s);
+void fonsClearState(FONScontext* s);
+
+// State setting
+void fonsSetSize(FONScontext* s, float size);
+void fonsSetColor(FONScontext* s, unsigned int color);
+void fonsSetSpacing(FONScontext* s, float spacing);
+void fonsSetBlur(FONScontext* s, float blur);
+void fonsSetAlign(FONScontext* s, int align);
+void fonsSetFont(FONScontext* s, int font);
+
+// Draw text
+float fonsDrawText(FONScontext* s, float x, float y, const char* string, const char* end);
+
+// Measure text
+float fonsTextBounds(FONScontext* s, float x, float y, const char* string, const char* end, float* bounds);
+void fonsLineBounds(FONScontext* s, float y, float* miny, float* maxy);
+void fonsVertMetrics(FONScontext* s, float* ascender, float* descender, float* lineh);
+
+// Text iterator
+int fonsTextIterInit(FONScontext* stash, FONStextIter* iter, float x, float y, const char* str, const char* end, int bitmapOption);
+int fonsTextIterNext(FONScontext* stash, FONStextIter* iter, struct FONSquad* quad);
+
+// Pull texture changes
+const unsigned char* fonsGetTextureData(FONScontext* stash, int* width, int* height);
+int fonsValidateTexture(FONScontext* s, int* dirty);
+
+// Draws the stash texture for debugging
+void fonsDrawDebug(FONScontext* s, float x, float y);
+
+#endif // FONTSTASH_H_F380F1FA_CDA3_11EA_AF58_0FE5E5086B14
+
+
+#ifdef FONTSTASH_IMPLEMENTATION
+
+#define FONS_NOTUSED(v) (void)sizeof(v)
+
+#ifdef FONS_USE_FREETYPE
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include FT_ADVANCES_H
+#include <math.h>
+
+struct FONSttFontImpl {
+ FT_Face font;
+};
+typedef struct FONSttFontImpl FONSttFontImpl;
+
+#else
+
+#define STB_TRUETYPE_IMPLEMENTATION
+static void* fons__tmpalloc(size_t size, void* up);
+static void fons__tmpfree(void* ptr, void* up);
+#define STBTT_malloc(x,u) fons__tmpalloc(x,u)
+#define STBTT_free(x,u) fons__tmpfree(x,u)
+#include "../stb/stb_truetype.h"
+
+struct FONSttFontImpl {
+ stbtt_fontinfo font;
+};
+typedef struct FONSttFontImpl FONSttFontImpl;
+
+#endif
+
+#ifndef FONS_SCRATCH_BUF_SIZE
+# define FONS_SCRATCH_BUF_SIZE 96000
+#endif
+#ifndef FONS_HASH_LUT_SIZE
+# define FONS_HASH_LUT_SIZE 256
+#endif
+#ifndef FONS_INIT_FONTS
+# define FONS_INIT_FONTS 4
+#endif
+#ifndef FONS_INIT_GLYPHS
+# define FONS_INIT_GLYPHS 256
+#endif
+#ifndef FONS_INIT_ATLAS_NODES
+# define FONS_INIT_ATLAS_NODES 256
+#endif
+#ifndef FONS_VERTEX_COUNT
+# define FONS_VERTEX_COUNT 1024
+#endif
+#ifndef FONS_MAX_STATES
+# define FONS_MAX_STATES 20
+#endif
+#ifndef FONS_MAX_FALLBACKS
+# define FONS_MAX_FALLBACKS 20
+#endif
+
+static unsigned int fons__hashint(unsigned int a)
+{
+ a += ~(a<<15);
+ a ^= (a>>10);
+ a += (a<<3);
+ a ^= (a>>6);
+ a += ~(a<<11);
+ a ^= (a>>16);
+ return a;
+}
+
+static int fons__mini(int a, int b)
+{
+ return a < b ? a : b;
+}
+
+static int fons__maxi(int a, int b)
+{
+ return a > b ? a : b;
+}
+
+struct FONSglyph
+{
+ unsigned int codepoint;
+ int index;
+ int next;
+ short size, blur;
+ short x0,y0,x1,y1;
+ short xadv,xoff,yoff;
+};
+typedef struct FONSglyph FONSglyph;
+
+struct FONSfont
+{
+ FONSttFontImpl font;
+ char name[64];
+ unsigned char* data;
+ int dataSize;
+ unsigned char freeData;
+ float ascender;
+ float descender;
+ float lineh;
+ FONSglyph* glyphs;
+ int cglyphs;
+ int nglyphs;
+ int lut[FONS_HASH_LUT_SIZE];
+ int fallbacks[FONS_MAX_FALLBACKS];
+ int nfallbacks;
+};
+typedef struct FONSfont FONSfont;
+
+struct FONSstate
+{
+ int font;
+ int align;
+ float size;
+ unsigned int color;
+ float blur;
+ float spacing;
+};
+typedef struct FONSstate FONSstate;
+
+struct FONSatlasNode {
+ short x, y, width;
+};
+typedef struct FONSatlasNode FONSatlasNode;
+
+struct FONSatlas
+{
+ int width, height;
+ FONSatlasNode* nodes;
+ int nnodes;
+ int cnodes;
+};
+typedef struct FONSatlas FONSatlas;
+
+struct FONScontext
+{
+ FONSparams params;
+ float itw,ith;
+ unsigned char* texData;
+ int dirtyRect[4];
+ FONSfont** fonts;
+ FONSatlas* atlas;
+ int cfonts;
+ int nfonts;
+ float verts[FONS_VERTEX_COUNT*2];
+ float tcoords[FONS_VERTEX_COUNT*2];
+ unsigned int colors[FONS_VERTEX_COUNT];
+ int nverts;
+ unsigned char* scratch;
+ int nscratch;
+ FONSstate states[FONS_MAX_STATES];
+ int nstates;
+ void (*handleError)(void* uptr, int error, int val);
+ void* errorUptr;
+#ifdef FONS_USE_FREETYPE
+ FT_Library ftLibrary;
+#endif
+};
+
+#ifdef FONS_USE_FREETYPE
+
+int fons__tt_init(FONScontext *context)
+{
+ FT_Error ftError;
+ FONS_NOTUSED(context);
+ ftError = FT_Init_FreeType(&context->ftLibrary);
+ return ftError == 0;
+}
+
+int fons__tt_done(FONScontext *context)
+{
+ FT_Error ftError;
+ FONS_NOTUSED(context);
+ ftError = FT_Done_FreeType(context->ftLibrary);
+ return ftError == 0;
+}
+
+int fons__tt_loadFont(FONScontext *context, FONSttFontImpl *font, unsigned char *data, int dataSize, int fontIndex)
+{
+ FT_Error ftError;
+ FONS_NOTUSED(context);
+
+ ftError = FT_New_Memory_Face(context->ftLibrary, (const FT_Byte*)data, dataSize, fontIndex, &font->font);
+ return ftError == 0;
+}
+
+void fons__tt_getFontVMetrics(FONSttFontImpl *font, int *ascent, int *descent, int *lineGap)
+{
+ *ascent = font->font->ascender;
+ *descent = font->font->descender;
+ *lineGap = font->font->height - (*ascent - *descent);
+}
+
+float fons__tt_getPixelHeightScale(FONSttFontImpl *font, float size)
+{
+ return size / font->font->units_per_EM;
+}
+
+int fons__tt_getGlyphIndex(FONSttFontImpl *font, int codepoint)
+{
+ return FT_Get_Char_Index(font->font, codepoint);
+}
+
+int fons__tt_buildGlyphBitmap(FONSttFontImpl *font, int glyph, float size, float scale,
+ int *advance, int *lsb, int *x0, int *y0, int *x1, int *y1)
+{
+ FT_Error ftError;
+ FT_GlyphSlot ftGlyph;
+ FT_Fixed advFixed;
+ FONS_NOTUSED(scale);
+
+ ftError = FT_Set_Pixel_Sizes(font->font, 0, size);
+ if (ftError) return 0;
+ ftError = FT_Load_Glyph(font->font, glyph, FT_LOAD_RENDER | FT_LOAD_FORCE_AUTOHINT | FT_LOAD_TARGET_LIGHT);
+ if (ftError) return 0;
+ ftError = FT_Get_Advance(font->font, glyph, FT_LOAD_NO_SCALE, &advFixed);
+ if (ftError) return 0;
+ ftGlyph = font->font->glyph;
+ *advance = (int)advFixed;
+ *lsb = (int)ftGlyph->metrics.horiBearingX;
+ *x0 = ftGlyph->bitmap_left;
+ *x1 = *x0 + ftGlyph->bitmap.width;
+ *y0 = -ftGlyph->bitmap_top;
+ *y1 = *y0 + ftGlyph->bitmap.rows;
+ return 1;
+}
+
+void fons__tt_renderGlyphBitmap(FONSttFontImpl *font, unsigned char *output, int outWidth, int outHeight, int outStride,
+ float scaleX, float scaleY, int glyph)
+{
+ FT_GlyphSlot ftGlyph = font->font->glyph;
+ int ftGlyphOffset = 0;
+ unsigned int x, y;
+ FONS_NOTUSED(outWidth);
+ FONS_NOTUSED(outHeight);
+ FONS_NOTUSED(scaleX);
+ FONS_NOTUSED(scaleY);
+ FONS_NOTUSED(glyph); // glyph has already been loaded by fons__tt_buildGlyphBitmap
+
+ for ( y = 0; y < ftGlyph->bitmap.rows; y++ ) {
+ for ( x = 0; x < ftGlyph->bitmap.width; x++ ) {
+ output[(y * outStride) + x] = ftGlyph->bitmap.buffer[ftGlyphOffset++];
+ }
+ }
+}
+
+int fons__tt_getGlyphKernAdvance(FONSttFontImpl *font, int glyph1, int glyph2)
+{
+ FT_Vector ftKerning;
+ FT_Get_Kerning(font->font, glyph1, glyph2, FT_KERNING_DEFAULT, &ftKerning);
+ return (int)((ftKerning.x + 32) >> 6); // Round up and convert to integer
+}
+
+#else
+
+int fons__tt_init(FONScontext *context)
+{
+ FONS_NOTUSED(context);
+ return 1;
+}
+
+int fons__tt_done(FONScontext *context)
+{
+ FONS_NOTUSED(context);
+ return 1;
+}
+
+int fons__tt_loadFont(FONScontext *context, FONSttFontImpl *font, unsigned char *data, int dataSize, int fontIndex)
+{
+ int offset, stbError;
+ FONS_NOTUSED(dataSize);
+
+ font->font.userdata = context;
+ offset = stbtt_GetFontOffsetForIndex(data, fontIndex);
+ if (offset == -1) {
+ stbError = 0;
+ } else {
+ stbError = stbtt_InitFont(&font->font, data, offset);
+ }
+ return stbError;
+}
+
+void fons__tt_getFontVMetrics(FONSttFontImpl *font, int *ascent, int *descent, int *lineGap)
+{
+ stbtt_GetFontVMetrics(&font->font, ascent, descent, lineGap);
+}
+
+float fons__tt_getPixelHeightScale(FONSttFontImpl *font, float size)
+{
+ return stbtt_ScaleForMappingEmToPixels(&font->font, size);
+}
+
+int fons__tt_getGlyphIndex(FONSttFontImpl *font, int codepoint)
+{
+ return stbtt_FindGlyphIndex(&font->font, codepoint);
+}
+
+int fons__tt_buildGlyphBitmap(FONSttFontImpl *font, int glyph, float size, float scale,
+ int *advance, int *lsb, int *x0, int *y0, int *x1, int *y1)
+{
+ FONS_NOTUSED(size);
+ stbtt_GetGlyphHMetrics(&font->font, glyph, advance, lsb);
+ stbtt_GetGlyphBitmapBox(&font->font, glyph, scale, scale, x0, y0, x1, y1);
+ return 1;
+}
+
+void fons__tt_renderGlyphBitmap(FONSttFontImpl *font, unsigned char *output, int outWidth, int outHeight, int outStride,
+ float scaleX, float scaleY, int glyph)
+{
+ stbtt_MakeGlyphBitmap(&font->font, output, outWidth, outHeight, outStride, scaleX, scaleY, glyph);
+}
+
+int fons__tt_getGlyphKernAdvance(FONSttFontImpl *font, int glyph1, int glyph2)
+{
+ return stbtt_GetGlyphKernAdvance(&font->font, glyph1, glyph2);
+}
+
+#endif
+
+#ifdef STB_TRUETYPE_IMPLEMENTATION
+
+static void* fons__tmpalloc(size_t size, void* up)
+{
+ unsigned char* ptr;
+ FONScontext* stash = (FONScontext*)up;
+
+ // 16-byte align the returned pointer
+ size = (size + 0xf) & ~0xf;
+
+ if (stash->nscratch+(int)size > FONS_SCRATCH_BUF_SIZE) {
+ if (stash->handleError)
+ stash->handleError(stash->errorUptr, FONS_SCRATCH_FULL, stash->nscratch+(int)size);
+ return NULL;
+ }
+ ptr = stash->scratch + stash->nscratch;
+ stash->nscratch += (int)size;
+ return ptr;
+}
+
+static void fons__tmpfree(void* ptr, void* up)
+{
+ (void)ptr;
+ (void)up;
+ // empty
+}
+
+#endif // STB_TRUETYPE_IMPLEMENTATION
+
+// Copyright (c) 2008-2010 Bjoern Hoehrmann <bjoern@hoehrmann.de>
+// See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details.
+
+#define FONS_UTF8_ACCEPT 0
+#define FONS_UTF8_REJECT 12
+
+static unsigned int fons__decutf8(unsigned int* state, unsigned int* codep, unsigned int byte)
+{
+ static const unsigned char utf8d[] = {
+ // The first part of the table maps bytes to character classes that
+ // to reduce the size of the transition table and create bitmasks.
+ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
+ 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+ 8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
+ 10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8,
+
+ // The second part is a transition table that maps a combination
+ // of a state of the automaton and a character class to a state.
+ 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
+ 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
+ 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
+ 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
+ 12,36,12,12,12,12,12,12,12,12,12,12,
+ };
+
+ unsigned int type = utf8d[byte];
+
+ *codep = (*state != FONS_UTF8_ACCEPT) ?
+ (byte & 0x3fu) | (*codep << 6) :
+ (0xff >> type) & (byte);
+
+ *state = utf8d[256 + *state + type];
+ return *state;
+}
+
+// Atlas based on Skyline Bin Packer by Jukka Jylänki
+
+static void fons__deleteAtlas(FONSatlas* atlas)
+{
+ if (atlas == NULL) return;
+ if (atlas->nodes != NULL) free(atlas->nodes);
+ free(atlas);
+}
+
+static FONSatlas* fons__allocAtlas(int w, int h, int nnodes)
+{
+ FONSatlas* atlas = NULL;
+
+ // Allocate memory for the font stash.
+ atlas = (FONSatlas*)malloc(sizeof(FONSatlas));
+ if (atlas == NULL) goto error;
+ memset(atlas, 0, sizeof(FONSatlas));
+
+ atlas->width = w;
+ atlas->height = h;
+
+ // Allocate space for skyline nodes
+ atlas->nodes = (FONSatlasNode*)malloc(sizeof(FONSatlasNode) * nnodes);
+ if (atlas->nodes == NULL) goto error;
+ memset(atlas->nodes, 0, sizeof(FONSatlasNode) * nnodes);
+ atlas->nnodes = 0;
+ atlas->cnodes = nnodes;
+
+ // Init root node.
+ atlas->nodes[0].x = 0;
+ atlas->nodes[0].y = 0;
+ atlas->nodes[0].width = (short)w;
+ atlas->nnodes++;
+
+ return atlas;
+
+error:
+ if (atlas) fons__deleteAtlas(atlas);
+ return NULL;
+}
+
+static int fons__atlasInsertNode(FONSatlas* atlas, int idx, int x, int y, int w)
+{
+ int i;
+ // Insert node
+ if (atlas->nnodes+1 > atlas->cnodes) {
+ atlas->cnodes = atlas->cnodes == 0 ? 8 : atlas->cnodes * 2;
+ atlas->nodes = (FONSatlasNode*)realloc(atlas->nodes, sizeof(FONSatlasNode) * atlas->cnodes);
+ if (atlas->nodes == NULL)
+ return 0;
+ }
+ for (i = atlas->nnodes; i > idx; i--)
+ atlas->nodes[i] = atlas->nodes[i-1];
+ atlas->nodes[idx].x = (short)x;
+ atlas->nodes[idx].y = (short)y;
+ atlas->nodes[idx].width = (short)w;
+ atlas->nnodes++;
+
+ return 1;
+}
+
+static void fons__atlasRemoveNode(FONSatlas* atlas, int idx)
+{
+ int i;
+ if (atlas->nnodes == 0) return;
+ for (i = idx; i < atlas->nnodes-1; i++)
+ atlas->nodes[i] = atlas->nodes[i+1];
+ atlas->nnodes--;
+}
+
+static void fons__atlasExpand(FONSatlas* atlas, int w, int h)
+{
+ // Insert node for empty space
+ if (w > atlas->width)
+ fons__atlasInsertNode(atlas, atlas->nnodes, atlas->width, 0, w - atlas->width);
+ atlas->width = w;
+ atlas->height = h;
+}
+
+static void fons__atlasReset(FONSatlas* atlas, int w, int h)
+{
+ atlas->width = w;
+ atlas->height = h;
+ atlas->nnodes = 0;
+
+ // Init root node.
+ atlas->nodes[0].x = 0;
+ atlas->nodes[0].y = 0;
+ atlas->nodes[0].width = (short)w;
+ atlas->nnodes++;
+}
+
+static int fons__atlasAddSkylineLevel(FONSatlas* atlas, int idx, int x, int y, int w, int h)
+{
+ int i;
+
+ // Insert new node
+ if (fons__atlasInsertNode(atlas, idx, x, y+h, w) == 0)
+ return 0;
+
+ // Delete skyline segments that fall under the shadow of the new segment.
+ for (i = idx+1; i < atlas->nnodes; i++) {
+ if (atlas->nodes[i].x < atlas->nodes[i-1].x + atlas->nodes[i-1].width) {
+ int shrink = atlas->nodes[i-1].x + atlas->nodes[i-1].width - atlas->nodes[i].x;
+ atlas->nodes[i].x += (short)shrink;
+ atlas->nodes[i].width -= (short)shrink;
+ if (atlas->nodes[i].width <= 0) {
+ fons__atlasRemoveNode(atlas, i);
+ i--;
+ } else {
+ break;
+ }
+ } else {
+ break;
+ }
+ }
+
+ // Merge same height skyline segments that are next to each other.
+ for (i = 0; i < atlas->nnodes-1; i++) {
+ if (atlas->nodes[i].y == atlas->nodes[i+1].y) {
+ atlas->nodes[i].width += atlas->nodes[i+1].width;
+ fons__atlasRemoveNode(atlas, i+1);
+ i--;
+ }
+ }
+
+ return 1;
+}
+
+static int fons__atlasRectFits(FONSatlas* atlas, int i, int w, int h)
+{
+ // Checks if there is enough space at the location of skyline span 'i',
+ // and return the max height of all skyline spans under that at that location,
+ // (think tetris block being dropped at that position). Or -1 if no space found.
+ int x = atlas->nodes[i].x;
+ int y = atlas->nodes[i].y;
+ int spaceLeft;
+ if (x + w > atlas->width)
+ return -1;
+ spaceLeft = w;
+ while (spaceLeft > 0) {
+ if (i == atlas->nnodes) return -1;
+ y = fons__maxi(y, atlas->nodes[i].y);
+ if (y + h > atlas->height) return -1;
+ spaceLeft -= atlas->nodes[i].width;
+ ++i;
+ }
+ return y;
+}
+
+static int fons__atlasAddRect(FONSatlas* atlas, int rw, int rh, int* rx, int* ry)
+{
+ int besth = atlas->height, bestw = atlas->width, besti = -1;
+ int bestx = -1, besty = -1, i;
+
+ // Bottom left fit heuristic.
+ for (i = 0; i < atlas->nnodes; i++) {
+ int y = fons__atlasRectFits(atlas, i, rw, rh);
+ if (y != -1) {
+ if (y + rh < besth || (y + rh == besth && atlas->nodes[i].width < bestw)) {
+ besti = i;
+ bestw = atlas->nodes[i].width;
+ besth = y + rh;
+ bestx = atlas->nodes[i].x;
+ besty = y;
+ }
+ }
+ }
+
+ if (besti == -1)
+ return 0;
+
+ // Perform the actual packing.
+ if (fons__atlasAddSkylineLevel(atlas, besti, bestx, besty, rw, rh) == 0)
+ return 0;
+
+ *rx = bestx;
+ *ry = besty;
+
+ return 1;
+}
+
+static void fons__addWhiteRect(FONScontext* stash, int w, int h)
+{
+ int x, y, gx, gy;
+ unsigned char* dst;
+ if (fons__atlasAddRect(stash->atlas, w, h, &gx, &gy) == 0)
+ return;
+
+ // Rasterize
+ dst = &stash->texData[gx + gy * stash->params.width];
+ for (y = 0; y < h; y++) {
+ for (x = 0; x < w; x++)
+ dst[x] = 0xff;
+ dst += stash->params.width;
+ }
+
+ stash->dirtyRect[0] = fons__mini(stash->dirtyRect[0], gx);
+ stash->dirtyRect[1] = fons__mini(stash->dirtyRect[1], gy);
+ stash->dirtyRect[2] = fons__maxi(stash->dirtyRect[2], gx+w);
+ stash->dirtyRect[3] = fons__maxi(stash->dirtyRect[3], gy+h);
+}
+
+FONScontext* fonsCreateInternal(FONSparams* params)
+{
+ FONScontext* stash = NULL;
+
+ // Allocate memory for the font stash.
+ stash = (FONScontext*)malloc(sizeof(FONScontext));
+ if (stash == NULL) goto error;
+ memset(stash, 0, sizeof(FONScontext));
+
+ stash->params = *params;
+
+ // Allocate scratch buffer.
+ stash->scratch = (unsigned char*)malloc(FONS_SCRATCH_BUF_SIZE);
+ if (stash->scratch == NULL) goto error;
+
+ // Initialize implementation library
+ if (!fons__tt_init(stash)) goto error;
+
+ if (stash->params.renderCreate != NULL) {
+ if (stash->params.renderCreate(stash->params.userPtr, stash->params.width, stash->params.height) == 0)
+ goto error;
+ }
+
+ stash->atlas = fons__allocAtlas(stash->params.width, stash->params.height, FONS_INIT_ATLAS_NODES);
+ if (stash->atlas == NULL) goto error;
+
+ // Allocate space for fonts.
+ stash->fonts = (FONSfont**)malloc(sizeof(FONSfont*) * FONS_INIT_FONTS);
+ if (stash->fonts == NULL) goto error;
+ memset(stash->fonts, 0, sizeof(FONSfont*) * FONS_INIT_FONTS);
+ stash->cfonts = FONS_INIT_FONTS;
+ stash->nfonts = 0;
+
+ // Create texture for the cache.
+ stash->itw = 1.0f/stash->params.width;
+ stash->ith = 1.0f/stash->params.height;
+ stash->texData = (unsigned char*)malloc(stash->params.width * stash->params.height);
+ if (stash->texData == NULL) goto error;
+ memset(stash->texData, 0, stash->params.width * stash->params.height);
+
+ stash->dirtyRect[0] = stash->params.width;
+ stash->dirtyRect[1] = stash->params.height;
+ stash->dirtyRect[2] = 0;
+ stash->dirtyRect[3] = 0;
+
+ // Add white rect at 0,0 for debug drawing.
+ fons__addWhiteRect(stash, 2,2);
+
+ fonsPushState(stash);
+ fonsClearState(stash);
+
+ return stash;
+
+error:
+ fonsDeleteInternal(stash);
+ return NULL;
+}
+
+static FONSstate* fons__getState(FONScontext* stash)
+{
+ return &stash->states[stash->nstates-1];
+}
+
+int fonsAddFallbackFont(FONScontext* stash, int base, int fallback)
+{
+ FONSfont* baseFont = stash->fonts[base];
+ if (baseFont->nfallbacks < FONS_MAX_FALLBACKS) {
+ baseFont->fallbacks[baseFont->nfallbacks++] = fallback;
+ return 1;
+ }
+ return 0;
+}
+
+void fonsResetFallbackFont(FONScontext* stash, int base)
+{
+ int i;
+
+ FONSfont* baseFont = stash->fonts[base];
+ baseFont->nfallbacks = 0;
+ baseFont->nglyphs = 0;
+ for (i = 0; i < FONS_HASH_LUT_SIZE; i++)
+ baseFont->lut[i] = -1;
+}
+
+void fonsSetSize(FONScontext* stash, float size)
+{
+ fons__getState(stash)->size = size;
+}
+
+void fonsSetColor(FONScontext* stash, unsigned int color)
+{
+ fons__getState(stash)->color = color;
+}
+
+void fonsSetSpacing(FONScontext* stash, float spacing)
+{
+ fons__getState(stash)->spacing = spacing;
+}
+
+void fonsSetBlur(FONScontext* stash, float blur)
+{
+ fons__getState(stash)->blur = blur;
+}
+
+void fonsSetAlign(FONScontext* stash, int align)
+{
+ fons__getState(stash)->align = align;
+}
+
+void fonsSetFont(FONScontext* stash, int font)
+{
+ fons__getState(stash)->font = font;
+}
+
+void fonsPushState(FONScontext* stash)
+{
+ if (stash->nstates >= FONS_MAX_STATES) {
+ if (stash->handleError)
+ stash->handleError(stash->errorUptr, FONS_STATES_OVERFLOW, 0);
+ return;
+ }
+ if (stash->nstates > 0)
+ memcpy(&stash->states[stash->nstates], &stash->states[stash->nstates-1], sizeof(FONSstate));
+ stash->nstates++;
+}
+
+void fonsPopState(FONScontext* stash)
+{
+ if (stash->nstates <= 1) {
+ if (stash->handleError)
+ stash->handleError(stash->errorUptr, FONS_STATES_UNDERFLOW, 0);
+ return;
+ }
+ stash->nstates--;
+}
+
+void fonsClearState(FONScontext* stash)
+{
+ FONSstate* state = fons__getState(stash);
+ state->size = 12.0f;
+ state->color = 0xffffffff;
+ state->font = 0;
+ state->blur = 0;
+ state->spacing = 0;
+ state->align = FONS_ALIGN_LEFT | FONS_ALIGN_BASELINE;
+}
+
+static void fons__freeFont(FONSfont* font)
+{
+ if (font == NULL) return;
+ if (font->glyphs) free(font->glyphs);
+ if (font->freeData && font->data) free(font->data);
+ free(font);
+}
+
+static int fons__allocFont(FONScontext* stash)
+{
+ FONSfont* font = NULL;
+ if (stash->nfonts+1 > stash->cfonts) {
+ stash->cfonts = stash->cfonts == 0 ? 8 : stash->cfonts * 2;
+ stash->fonts = (FONSfont**)realloc(stash->fonts, sizeof(FONSfont*) * stash->cfonts);
+ if (stash->fonts == NULL)
+ return -1;
+ }
+ font = (FONSfont*)malloc(sizeof(FONSfont));
+ if (font == NULL) goto error;
+ memset(font, 0, sizeof(FONSfont));
+
+ font->glyphs = (FONSglyph*)malloc(sizeof(FONSglyph) * FONS_INIT_GLYPHS);
+ if (font->glyphs == NULL) goto error;
+ font->cglyphs = FONS_INIT_GLYPHS;
+ font->nglyphs = 0;
+
+ stash->fonts[stash->nfonts++] = font;
+ return stash->nfonts-1;
+
+error:
+ fons__freeFont(font);
+
+ return FONS_INVALID;
+}
+
+int fonsAddFont(FONScontext* stash, const char* name, const char* path, int fontIndex)
+{
+ FILE* fp = 0;
+ int dataSize = 0;
+ size_t readed;
+ unsigned char* data = NULL;
+
+ // Read in the font data.
+ fp = fopen(path, "rb");
+ if (fp == NULL) goto error;
+ fseek(fp,0,SEEK_END);
+ dataSize = (int)ftell(fp);
+ fseek(fp,0,SEEK_SET);
+ data = (unsigned char*)malloc(dataSize);
+ if (data == NULL) goto error;
+ readed = fread(data, 1, dataSize, fp);
+ fclose(fp);
+ fp = 0;
+ if (readed != (size_t)dataSize) goto error;
+
+ return fonsAddFontMem(stash, name, data, dataSize, 1, fontIndex);
+
+error:
+ if (data) free(data);
+ if (fp) fclose(fp);
+ return FONS_INVALID;
+}
+
+int fonsAddFontMem(FONScontext* stash, const char* name, unsigned char* data, int dataSize, int freeData, int fontIndex)
+{
+ int i, ascent, descent, fh, lineGap;
+ FONSfont* font;
+
+ int idx = fons__allocFont(stash);
+ if (idx == FONS_INVALID)
+ return FONS_INVALID;
+
+ font = stash->fonts[idx];
+
+ strncpy(font->name, name, sizeof(font->name));
+ font->name[sizeof(font->name)-1] = '\0';
+
+ // Init hash lookup.
+ for (i = 0; i < FONS_HASH_LUT_SIZE; ++i)
+ font->lut[i] = -1;
+
+ // Read in the font data.
+ font->dataSize = dataSize;
+ font->data = data;
+ font->freeData = (unsigned char)freeData;
+
+ // Init font
+ stash->nscratch = 0;
+ if (!fons__tt_loadFont(stash, &font->font, data, dataSize, fontIndex)) goto error;
+
+ // Store normalized line height. The real line height is got
+ // by multiplying the lineh by font size.
+ fons__tt_getFontVMetrics( &font->font, &ascent, &descent, &lineGap);
+ ascent += lineGap;
+ fh = ascent - descent;
+ font->ascender = (float)ascent / (float)fh;
+ font->descender = (float)descent / (float)fh;
+ font->lineh = font->ascender - font->descender;
+
+ return idx;
+
+error:
+ fons__freeFont(font);
+ stash->nfonts--;
+ return FONS_INVALID;
+}
+
+int fonsGetFontByName(FONScontext* s, const char* name)
+{
+ int i;
+ for (i = 0; i < s->nfonts; i++) {
+ if (strcmp(s->fonts[i]->name, name) == 0)
+ return i;
+ }
+ return FONS_INVALID;
+}
+
+
+static FONSglyph* fons__allocGlyph(FONSfont* font)
+{
+ if (font->nglyphs+1 > font->cglyphs) {
+ font->cglyphs = font->cglyphs == 0 ? 8 : font->cglyphs * 2;
+ font->glyphs = (FONSglyph*)realloc(font->glyphs, sizeof(FONSglyph) * font->cglyphs);
+ if (font->glyphs == NULL) return NULL;
+ }
+ font->nglyphs++;
+ return &font->glyphs[font->nglyphs-1];
+}
+
+
+// Based on Exponential blur, Jani Huhtanen, 2006
+
+#define APREC 16
+#define ZPREC 7
+
+static void fons__blurCols(unsigned char* dst, int w, int h, int dstStride, int alpha)
+{
+ int x, y;
+ for (y = 0; y < h; y++) {
+ int z = 0; // force zero border
+ for (x = 1; x < w; x++) {
+ z += (alpha * (((int)(dst[x]) << ZPREC) - z)) >> APREC;
+ dst[x] = (unsigned char)(z >> ZPREC);
+ }
+ dst[w-1] = 0; // force zero border
+ z = 0;
+ for (x = w-2; x >= 0; x--) {
+ z += (alpha * (((int)(dst[x]) << ZPREC) - z)) >> APREC;
+ dst[x] = (unsigned char)(z >> ZPREC);
+ }
+ dst[0] = 0; // force zero border
+ dst += dstStride;
+ }
+}
+
+static void fons__blurRows(unsigned char* dst, int w, int h, int dstStride, int alpha)
+{
+ int x, y;
+ for (x = 0; x < w; x++) {
+ int z = 0; // force zero border
+ for (y = dstStride; y < h*dstStride; y += dstStride) {
+ z += (alpha * (((int)(dst[y]) << ZPREC) - z)) >> APREC;
+ dst[y] = (unsigned char)(z >> ZPREC);
+ }
+ dst[(h-1)*dstStride] = 0; // force zero border
+ z = 0;
+ for (y = (h-2)*dstStride; y >= 0; y -= dstStride) {
+ z += (alpha * (((int)(dst[y]) << ZPREC) - z)) >> APREC;
+ dst[y] = (unsigned char)(z >> ZPREC);
+ }
+ dst[0] = 0; // force zero border
+ dst++;
+ }
+}
+
+
+static void fons__blur(FONScontext* stash, unsigned char* dst, int w, int h, int dstStride, int blur)
+{
+ int alpha;
+ float sigma;
+ (void)stash;
+
+ if (blur < 1)
+ return;
+ // Calculate the alpha such that 90% of the kernel is within the radius. (Kernel extends to infinity)
+ sigma = (float)blur * 0.57735f; // 1 / sqrt(3)
+ alpha = (int)((1<<APREC) * (1.0f - expf(-2.3f / (sigma+1.0f))));
+ fons__blurRows(dst, w, h, dstStride, alpha);
+ fons__blurCols(dst, w, h, dstStride, alpha);
+ fons__blurRows(dst, w, h, dstStride, alpha);
+ fons__blurCols(dst, w, h, dstStride, alpha);
+// fons__blurrows(dst, w, h, dstStride, alpha);
+// fons__blurcols(dst, w, h, dstStride, alpha);
+}
+
+static FONSglyph* fons__getGlyph(FONScontext* stash, FONSfont* font, unsigned int codepoint,
+ short isize, short iblur, int bitmapOption)
+{
+ int i, g, advance, lsb, x0, y0, x1, y1, gw, gh, gx, gy, x, y;
+ float scale;
+ FONSglyph* glyph = NULL;
+ unsigned int h;
+ float size = isize/10.0f;
+ int pad, added;
+ unsigned char* bdst;
+ unsigned char* dst;
+ FONSfont* renderFont = font;
+
+ if (isize < 2) return NULL;
+ if (iblur > 20) iblur = 20;
+ pad = iblur+2;
+
+ // Reset allocator.
+ stash->nscratch = 0;
+
+ // Find code point and size.
+ h = fons__hashint(codepoint) & (FONS_HASH_LUT_SIZE-1);
+ i = font->lut[h];
+ while (i != -1) {
+ if (font->glyphs[i].codepoint == codepoint && font->glyphs[i].size == isize && font->glyphs[i].blur == iblur) {
+ glyph = &font->glyphs[i];
+ if (bitmapOption == FONS_GLYPH_BITMAP_OPTIONAL || (glyph->x0 >= 0 && glyph->y0 >= 0)) {
+ return glyph;
+ }
+ // At this point, glyph exists but the bitmap data is not yet created.
+ break;
+ }
+ i = font->glyphs[i].next;
+ }
+
+ // Create a new glyph or rasterize bitmap data for a cached glyph.
+ g = fons__tt_getGlyphIndex(&font->font, codepoint);
+ // Try to find the glyph in fallback fonts.
+ if (g == 0) {
+ for (i = 0; i < font->nfallbacks; ++i) {
+ FONSfont* fallbackFont = stash->fonts[font->fallbacks[i]];
+ int fallbackIndex = fons__tt_getGlyphIndex(&fallbackFont->font, codepoint);
+ if (fallbackIndex != 0) {
+ g = fallbackIndex;
+ renderFont = fallbackFont;
+ break;
+ }
+ }
+ // It is possible that we did not find a fallback glyph.
+ // In that case the glyph index 'g' is 0, and we'll proceed below and cache empty glyph.
+ }
+ scale = fons__tt_getPixelHeightScale(&renderFont->font, size);
+ fons__tt_buildGlyphBitmap(&renderFont->font, g, size, scale, &advance, &lsb, &x0, &y0, &x1, &y1);
+ gw = x1-x0 + pad*2;
+ gh = y1-y0 + pad*2;
+
+ // Determines the spot to draw glyph in the atlas.
+ if (bitmapOption == FONS_GLYPH_BITMAP_REQUIRED) {
+ // Find free spot for the rect in the atlas
+ added = fons__atlasAddRect(stash->atlas, gw, gh, &gx, &gy);
+ if (added == 0 && stash->handleError != NULL) {
+ // Atlas is full, let the user to resize the atlas (or not), and try again.
+ stash->handleError(stash->errorUptr, FONS_ATLAS_FULL, 0);
+ added = fons__atlasAddRect(stash->atlas, gw, gh, &gx, &gy);
+ }
+ if (added == 0) return NULL;
+ } else {
+ // Negative coordinate indicates there is no bitmap data created.
+ gx = -1;
+ gy = -1;
+ }
+
+ // Init glyph.
+ if (glyph == NULL) {
+ glyph = fons__allocGlyph(font);
+ glyph->codepoint = codepoint;
+ glyph->size = isize;
+ glyph->blur = iblur;
+ glyph->next = 0;
+
+ // Insert char to hash lookup.
+ glyph->next = font->lut[h];
+ font->lut[h] = font->nglyphs-1;
+ }
+ glyph->index = g;
+ glyph->x0 = (short)gx;
+ glyph->y0 = (short)gy;
+ glyph->x1 = (short)(glyph->x0+gw);
+ glyph->y1 = (short)(glyph->y0+gh);
+ glyph->xadv = (short)(scale * advance * 10.0f);
+ glyph->xoff = (short)(x0 - pad);
+ glyph->yoff = (short)(y0 - pad);
+
+ if (bitmapOption == FONS_GLYPH_BITMAP_OPTIONAL) {
+ return glyph;
+ }
+
+ // Rasterize
+ dst = &stash->texData[(glyph->x0+pad) + (glyph->y0+pad) * stash->params.width];
+ fons__tt_renderGlyphBitmap(&renderFont->font, dst, gw-pad*2,gh-pad*2, stash->params.width, scale, scale, g);
+
+ // Make sure there is one pixel empty border.
+ dst = &stash->texData[glyph->x0 + glyph->y0 * stash->params.width];
+ for (y = 0; y < gh; y++) {
+ dst[y*stash->params.width] = 0;
+ dst[gw-1 + y*stash->params.width] = 0;
+ }
+ for (x = 0; x < gw; x++) {
+ dst[x] = 0;
+ dst[x + (gh-1)*stash->params.width] = 0;
+ }
+
+ // Debug code to color the glyph background
+/* unsigned char* fdst = &stash->texData[glyph->x0 + glyph->y0 * stash->params.width];
+ for (y = 0; y < gh; y++) {
+ for (x = 0; x < gw; x++) {
+ int a = (int)fdst[x+y*stash->params.width] + 20;
+ if (a > 255) a = 255;
+ fdst[x+y*stash->params.width] = a;
+ }
+ }*/
+
+ // Blur
+ if (iblur > 0) {
+ stash->nscratch = 0;
+ bdst = &stash->texData[glyph->x0 + glyph->y0 * stash->params.width];
+ fons__blur(stash, bdst, gw, gh, stash->params.width, iblur);
+ }
+
+ stash->dirtyRect[0] = fons__mini(stash->dirtyRect[0], glyph->x0);
+ stash->dirtyRect[1] = fons__mini(stash->dirtyRect[1], glyph->y0);
+ stash->dirtyRect[2] = fons__maxi(stash->dirtyRect[2], glyph->x1);
+ stash->dirtyRect[3] = fons__maxi(stash->dirtyRect[3], glyph->y1);
+
+ return glyph;
+}
+
+static void fons__getQuad(FONScontext* stash, FONSfont* font,
+ int prevGlyphIndex, FONSglyph* glyph,
+ float scale, float spacing, float* x, float* y, FONSquad* q)
+{
+ float rx,ry,xoff,yoff,x0,y0,x1,y1;
+
+ if (prevGlyphIndex != -1) {
+ float adv = fons__tt_getGlyphKernAdvance(&font->font, prevGlyphIndex, glyph->index) * scale;
+ *x += (int)(adv + spacing + 0.5f);
+ }
+
+ // Each glyph has 2px border to allow good interpolation,
+ // one pixel to prevent leaking, and one to allow good interpolation for rendering.
+ // Inset the texture region by one pixel for correct interpolation.
+ xoff = (short)(glyph->xoff+1);
+ yoff = (short)(glyph->yoff+1);
+ x0 = (float)(glyph->x0+1);
+ y0 = (float)(glyph->y0+1);
+ x1 = (float)(glyph->x1-1);
+ y1 = (float)(glyph->y1-1);
+
+ if (stash->params.flags & FONS_ZERO_TOPLEFT) {
+ rx = floorf(*x + xoff);
+ ry = floorf(*y + yoff);
+
+ q->x0 = rx;
+ q->y0 = ry;
+ q->x1 = rx + x1 - x0;
+ q->y1 = ry + y1 - y0;
+
+ q->s0 = x0 * stash->itw;
+ q->t0 = y0 * stash->ith;
+ q->s1 = x1 * stash->itw;
+ q->t1 = y1 * stash->ith;
+ } else {
+ rx = floorf(*x + xoff);
+ ry = floorf(*y - yoff);
+
+ q->x0 = rx;
+ q->y0 = ry;
+ q->x1 = rx + x1 - x0;
+ q->y1 = ry - y1 + y0;
+
+ q->s0 = x0 * stash->itw;
+ q->t0 = y0 * stash->ith;
+ q->s1 = x1 * stash->itw;
+ q->t1 = y1 * stash->ith;
+ }
+
+ *x += (int)(glyph->xadv / 10.0f + 0.5f);
+}
+
+static void fons__flush(FONScontext* stash)
+{
+ // Flush texture
+ if (stash->dirtyRect[0] < stash->dirtyRect[2] && stash->dirtyRect[1] < stash->dirtyRect[3]) {
+ if (stash->params.renderUpdate != NULL)
+ stash->params.renderUpdate(stash->params.userPtr, stash->dirtyRect, stash->texData);
+ // Reset dirty rect
+ stash->dirtyRect[0] = stash->params.width;
+ stash->dirtyRect[1] = stash->params.height;
+ stash->dirtyRect[2] = 0;
+ stash->dirtyRect[3] = 0;
+ }
+
+ // Flush triangles
+ if (stash->nverts > 0) {
+ if (stash->params.renderDraw != NULL)
+ stash->params.renderDraw(stash->params.userPtr, stash->verts, stash->tcoords, stash->colors, stash->nverts);
+ stash->nverts = 0;
+ }
+}
+
+static __inline void fons__vertex(FONScontext* stash, float x, float y, float s, float t, unsigned int c)
+{
+ stash->verts[stash->nverts*2+0] = x;
+ stash->verts[stash->nverts*2+1] = y;
+ stash->tcoords[stash->nverts*2+0] = s;
+ stash->tcoords[stash->nverts*2+1] = t;
+ stash->colors[stash->nverts] = c;
+ stash->nverts++;
+}
+
+static float fons__getVertAlign(FONScontext* stash, FONSfont* font, int align, short isize)
+{
+ if (stash->params.flags & FONS_ZERO_TOPLEFT) {
+ if (align & FONS_ALIGN_TOP) {
+ return font->ascender * (float)isize/10.0f;
+ } else if (align & FONS_ALIGN_MIDDLE) {
+ return (font->ascender + font->descender) / 2.0f * (float)isize/10.0f;
+ } else if (align & FONS_ALIGN_BASELINE) {
+ return 0.0f;
+ } else if (align & FONS_ALIGN_BOTTOM) {
+ return font->descender * (float)isize/10.0f;
+ }
+ } else {
+ if (align & FONS_ALIGN_TOP) {
+ return -font->ascender * (float)isize/10.0f;
+ } else if (align & FONS_ALIGN_MIDDLE) {
+ return -(font->ascender + font->descender) / 2.0f * (float)isize/10.0f;
+ } else if (align & FONS_ALIGN_BASELINE) {
+ return 0.0f;
+ } else if (align & FONS_ALIGN_BOTTOM) {
+ return -font->descender * (float)isize/10.0f;
+ }
+ }
+ return 0.0;
+}
+
+float fonsDrawText(FONScontext* stash,
+ float x, float y,
+ const char* str, const char* end)
+{
+ FONSstate* state = fons__getState(stash);
+ unsigned int codepoint;
+ unsigned int utf8state = 0;
+ FONSglyph* glyph = NULL;
+ FONSquad q;
+ int prevGlyphIndex = -1;
+ short isize = (short)(state->size*10.0f);
+ short iblur = (short)state->blur;
+ float scale;
+ FONSfont* font;
+ float width;
+
+ if (stash == NULL) return x;
+ if (state->font < 0 || state->font >= stash->nfonts) return x;
+ font = stash->fonts[state->font];
+ if (font->data == NULL) return x;
+
+ scale = fons__tt_getPixelHeightScale(&font->font, (float)isize/10.0f);
+
+ if (end == NULL)
+ end = str + strlen(str);
+
+ // Align horizontally
+ if (state->align & FONS_ALIGN_LEFT) {
+ // empty
+ } else if (state->align & FONS_ALIGN_RIGHT) {
+ width = fonsTextBounds(stash, x,y, str, end, NULL);
+ x -= width;
+ } else if (state->align & FONS_ALIGN_CENTER) {
+ width = fonsTextBounds(stash, x,y, str, end, NULL);
+ x -= width * 0.5f;
+ }
+ // Align vertically.
+ y += fons__getVertAlign(stash, font, state->align, isize);
+
+ for (; str != end; ++str) {
+ if (fons__decutf8(&utf8state, &codepoint, *(const unsigned char*)str))
+ continue;
+ glyph = fons__getGlyph(stash, font, codepoint, isize, iblur, FONS_GLYPH_BITMAP_REQUIRED);
+ if (glyph != NULL) {
+ fons__getQuad(stash, font, prevGlyphIndex, glyph, scale, state->spacing, &x, &y, &q);
+
+ if (stash->nverts+6 > FONS_VERTEX_COUNT)
+ fons__flush(stash);
+
+ fons__vertex(stash, q.x0, q.y0, q.s0, q.t0, state->color);
+ fons__vertex(stash, q.x1, q.y1, q.s1, q.t1, state->color);
+ fons__vertex(stash, q.x1, q.y0, q.s1, q.t0, state->color);
+
+ fons__vertex(stash, q.x0, q.y0, q.s0, q.t0, state->color);
+ fons__vertex(stash, q.x0, q.y1, q.s0, q.t1, state->color);
+ fons__vertex(stash, q.x1, q.y1, q.s1, q.t1, state->color);
+ }
+ prevGlyphIndex = glyph != NULL ? glyph->index : -1;
+ }
+ fons__flush(stash);
+
+ return x;
+}
+
+int fonsTextIterInit(FONScontext* stash, FONStextIter* iter,
+ float x, float y, const char* str, const char* end, int bitmapOption)
+{
+ FONSstate* state = fons__getState(stash);
+ float width;
+
+ memset(iter, 0, sizeof(*iter));
+
+ if (stash == NULL) return 0;
+ if (state->font < 0 || state->font >= stash->nfonts) return 0;
+ iter->font = stash->fonts[state->font];
+ if (iter->font->data == NULL) return 0;
+
+ iter->isize = (short)(state->size*10.0f);
+ iter->iblur = (short)state->blur;
+ iter->scale = fons__tt_getPixelHeightScale(&iter->font->font, (float)iter->isize/10.0f);
+
+ // Align horizontally
+ if (state->align & FONS_ALIGN_LEFT) {
+ // empty
+ } else if (state->align & FONS_ALIGN_RIGHT) {
+ width = fonsTextBounds(stash, x,y, str, end, NULL);
+ x -= width;
+ } else if (state->align & FONS_ALIGN_CENTER) {
+ width = fonsTextBounds(stash, x,y, str, end, NULL);
+ x -= width * 0.5f;
+ }
+ // Align vertically.
+ y += fons__getVertAlign(stash, iter->font, state->align, iter->isize);
+
+ if (end == NULL)
+ end = str + strlen(str);
+
+ iter->x = iter->nextx = x;
+ iter->y = iter->nexty = y;
+ iter->spacing = state->spacing;
+ iter->str = str;
+ iter->next = str;
+ iter->end = end;
+ iter->codepoint = 0;
+ iter->prevGlyphIndex = -1;
+ iter->bitmapOption = bitmapOption;
+
+ return 1;
+}
+
+int fonsTextIterNext(FONScontext* stash, FONStextIter* iter, FONSquad* quad)
+{
+ FONSglyph* glyph = NULL;
+ const char* str = iter->next;
+ iter->str = iter->next;
+
+ if (str == iter->end)
+ return 0;
+
+ for (; str != iter->end; str++) {
+ if (fons__decutf8(&iter->utf8state, &iter->codepoint, *(const unsigned char*)str))
+ continue;
+ str++;
+ // Get glyph and quad
+ iter->x = iter->nextx;
+ iter->y = iter->nexty;
+ glyph = fons__getGlyph(stash, iter->font, iter->codepoint, iter->isize, iter->iblur, iter->bitmapOption);
+ // If the iterator was initialized with FONS_GLYPH_BITMAP_OPTIONAL, then the UV coordinates of the quad will be invalid.
+ if (glyph != NULL)
+ fons__getQuad(stash, iter->font, iter->prevGlyphIndex, glyph, iter->scale, iter->spacing, &iter->nextx, &iter->nexty, quad);
+ iter->prevGlyphIndex = glyph != NULL ? glyph->index : -1;
+ break;
+ }
+ iter->next = str;
+
+ return 1;
+}
+
+void fonsDrawDebug(FONScontext* stash, float x, float y)
+{
+ int i;
+ int w = stash->params.width;
+ int h = stash->params.height;
+ float u = w == 0 ? 0 : (1.0f / w);
+ float v = h == 0 ? 0 : (1.0f / h);
+
+ if (stash->nverts+6+6 > FONS_VERTEX_COUNT)
+ fons__flush(stash);
+
+ // Draw background
+ fons__vertex(stash, x+0, y+0, u, v, 0x0fffffff);
+ fons__vertex(stash, x+w, y+h, u, v, 0x0fffffff);
+ fons__vertex(stash, x+w, y+0, u, v, 0x0fffffff);
+
+ fons__vertex(stash, x+0, y+0, u, v, 0x0fffffff);
+ fons__vertex(stash, x+0, y+h, u, v, 0x0fffffff);
+ fons__vertex(stash, x+w, y+h, u, v, 0x0fffffff);
+
+ // Draw texture
+ fons__vertex(stash, x+0, y+0, 0, 0, 0xffffffff);
+ fons__vertex(stash, x+w, y+h, 1, 1, 0xffffffff);
+ fons__vertex(stash, x+w, y+0, 1, 0, 0xffffffff);
+
+ fons__vertex(stash, x+0, y+0, 0, 0, 0xffffffff);
+ fons__vertex(stash, x+0, y+h, 0, 1, 0xffffffff);
+ fons__vertex(stash, x+w, y+h, 1, 1, 0xffffffff);
+
+ // Drawbug draw atlas
+ for (i = 0; i < stash->atlas->nnodes; i++) {
+ FONSatlasNode* n = &stash->atlas->nodes[i];
+
+ if (stash->nverts+6 > FONS_VERTEX_COUNT)
+ fons__flush(stash);
+
+ fons__vertex(stash, x+n->x+0, y+n->y+0, u, v, 0xc00000ff);
+ fons__vertex(stash, x+n->x+n->width, y+n->y+1, u, v, 0xc00000ff);
+ fons__vertex(stash, x+n->x+n->width, y+n->y+0, u, v, 0xc00000ff);
+
+ fons__vertex(stash, x+n->x+0, y+n->y+0, u, v, 0xc00000ff);
+ fons__vertex(stash, x+n->x+0, y+n->y+1, u, v, 0xc00000ff);
+ fons__vertex(stash, x+n->x+n->width, y+n->y+1, u, v, 0xc00000ff);
+ }
+
+ fons__flush(stash);
+}
+
+float fonsTextBounds(FONScontext* stash,
+ float x, float y,
+ const char* str, const char* end,
+ float* bounds)
+{
+ FONSstate* state = fons__getState(stash);
+ unsigned int codepoint;
+ unsigned int utf8state = 0;
+ FONSquad q;
+ FONSglyph* glyph = NULL;
+ int prevGlyphIndex = -1;
+ short isize = (short)(state->size*10.0f);
+ short iblur = (short)state->blur;
+ float scale;
+ FONSfont* font;
+ float startx, advance;
+ float minx, miny, maxx, maxy;
+
+ if (stash == NULL) return 0;
+ if (state->font < 0 || state->font >= stash->nfonts) return 0;
+ font = stash->fonts[state->font];
+ if (font->data == NULL) return 0;
+
+ scale = fons__tt_getPixelHeightScale(&font->font, (float)isize/10.0f);
+
+ // Align vertically.
+ y += fons__getVertAlign(stash, font, state->align, isize);
+
+ minx = maxx = x;
+ miny = maxy = y;
+ startx = x;
+
+ if (end == NULL)
+ end = str + strlen(str);
+
+ for (; str != end; ++str) {
+ if (fons__decutf8(&utf8state, &codepoint, *(const unsigned char*)str))
+ continue;
+ glyph = fons__getGlyph(stash, font, codepoint, isize, iblur, FONS_GLYPH_BITMAP_OPTIONAL);
+ if (glyph != NULL) {
+ fons__getQuad(stash, font, prevGlyphIndex, glyph, scale, state->spacing, &x, &y, &q);
+ if (q.x0 < minx) minx = q.x0;
+ if (q.x1 > maxx) maxx = q.x1;
+ if (stash->params.flags & FONS_ZERO_TOPLEFT) {
+ if (q.y0 < miny) miny = q.y0;
+ if (q.y1 > maxy) maxy = q.y1;
+ } else {
+ if (q.y1 < miny) miny = q.y1;
+ if (q.y0 > maxy) maxy = q.y0;
+ }
+ }
+ prevGlyphIndex = glyph != NULL ? glyph->index : -1;
+ }
+
+ advance = x - startx;
+
+ // Align horizontally
+ if (state->align & FONS_ALIGN_LEFT) {
+ // empty
+ } else if (state->align & FONS_ALIGN_RIGHT) {
+ minx -= advance;
+ maxx -= advance;
+ } else if (state->align & FONS_ALIGN_CENTER) {
+ minx -= advance * 0.5f;
+ maxx -= advance * 0.5f;
+ }
+
+ if (bounds) {
+ bounds[0] = minx;
+ bounds[1] = miny;
+ bounds[2] = maxx;
+ bounds[3] = maxy;
+ }
+
+ return advance;
+}
+
+void fonsVertMetrics(FONScontext* stash,
+ float* ascender, float* descender, float* lineh)
+{
+ FONSfont* font;
+ FONSstate* state = fons__getState(stash);
+ short isize;
+
+ if (stash == NULL) return;
+ if (state->font < 0 || state->font >= stash->nfonts) return;
+ font = stash->fonts[state->font];
+ isize = (short)(state->size*10.0f);
+ if (font->data == NULL) return;
+
+ if (ascender)
+ *ascender = font->ascender*isize/10.0f;
+ if (descender)
+ *descender = font->descender*isize/10.0f;
+ if (lineh)
+ *lineh = font->lineh*isize/10.0f;
+}
+
+void fonsLineBounds(FONScontext* stash, float y, float* miny, float* maxy)
+{
+ FONSfont* font;
+ FONSstate* state = fons__getState(stash);
+ short isize;
+
+ if (stash == NULL) return;
+ if (state->font < 0 || state->font >= stash->nfonts) return;
+ font = stash->fonts[state->font];
+ isize = (short)(state->size*10.0f);
+ if (font->data == NULL) return;
+
+ y += fons__getVertAlign(stash, font, state->align, isize);
+
+ if (stash->params.flags & FONS_ZERO_TOPLEFT) {
+ *miny = y - font->ascender * (float)isize/10.0f;
+ *maxy = *miny + font->lineh*isize/10.0f;
+ } else {
+ *maxy = y + font->descender * (float)isize/10.0f;
+ *miny = *maxy - font->lineh*isize/10.0f;
+ }
+}
+
+const unsigned char* fonsGetTextureData(FONScontext* stash, int* width, int* height)
+{
+ if (width != NULL)
+ *width = stash->params.width;
+ if (height != NULL)
+ *height = stash->params.height;
+ return stash->texData;
+}
+
+int fonsValidateTexture(FONScontext* stash, int* dirty)
+{
+ if (stash->dirtyRect[0] < stash->dirtyRect[2] && stash->dirtyRect[1] < stash->dirtyRect[3]) {
+ dirty[0] = stash->dirtyRect[0];
+ dirty[1] = stash->dirtyRect[1];
+ dirty[2] = stash->dirtyRect[2];
+ dirty[3] = stash->dirtyRect[3];
+ // Reset dirty rect
+ stash->dirtyRect[0] = stash->params.width;
+ stash->dirtyRect[1] = stash->params.height;
+ stash->dirtyRect[2] = 0;
+ stash->dirtyRect[3] = 0;
+ return 1;
+ }
+ return 0;
+}
+
+void fonsDeleteInternal(FONScontext* stash)
+{
+ int i;
+ if (stash == NULL) return;
+
+ if (stash->params.renderDelete)
+ stash->params.renderDelete(stash->params.userPtr);
+
+ for (i = 0; i < stash->nfonts; ++i)
+ fons__freeFont(stash->fonts[i]);
+
+ if (stash->atlas) fons__deleteAtlas(stash->atlas);
+ if (stash->fonts) free(stash->fonts);
+ if (stash->texData) free(stash->texData);
+ if (stash->scratch) free(stash->scratch);
+ fons__tt_done(stash);
+ free(stash);
+}
+
+void fonsSetErrorCallback(FONScontext* stash, void (*callback)(void* uptr, int error, int val), void* uptr)
+{
+ if (stash == NULL) return;
+ stash->handleError = callback;
+ stash->errorUptr = uptr;
+}
+
+void fonsGetAtlasSize(FONScontext* stash, int* width, int* height)
+{
+ if (stash == NULL) return;
+ *width = stash->params.width;
+ *height = stash->params.height;
+}
+
+int fonsExpandAtlas(FONScontext* stash, int width, int height)
+{
+ int i, maxy = 0;
+ unsigned char* data = NULL;
+ if (stash == NULL) return 0;
+
+ width = fons__maxi(width, stash->params.width);
+ height = fons__maxi(height, stash->params.height);
+
+ if (width == stash->params.width && height == stash->params.height)
+ return 1;
+
+ // Flush pending glyphs.
+ fons__flush(stash);
+
+ // Create new texture
+ if (stash->params.renderResize != NULL) {
+ if (stash->params.renderResize(stash->params.userPtr, width, height) == 0)
+ return 0;
+ }
+ // Copy old texture data over.
+ data = (unsigned char*)malloc(width * height);
+ if (data == NULL)
+ return 0;
+ for (i = 0; i < stash->params.height; i++) {
+ unsigned char* dst = &data[i*width];
+ unsigned char* src = &stash->texData[i*stash->params.width];
+ memcpy(dst, src, stash->params.width);
+ if (width > stash->params.width)
+ memset(dst+stash->params.width, 0, width - stash->params.width);
+ }
+ if (height > stash->params.height)
+ memset(&data[stash->params.height * width], 0, (height - stash->params.height) * width);
+
+ free(stash->texData);
+ stash->texData = data;
+
+ // Increase atlas size
+ fons__atlasExpand(stash->atlas, width, height);
+
+ // Add existing data as dirty.
+ for (i = 0; i < stash->atlas->nnodes; i++)
+ maxy = fons__maxi(maxy, stash->atlas->nodes[i].y);
+ stash->dirtyRect[0] = 0;
+ stash->dirtyRect[1] = 0;
+ stash->dirtyRect[2] = stash->params.width;
+ stash->dirtyRect[3] = maxy;
+
+ stash->params.width = width;
+ stash->params.height = height;
+ stash->itw = 1.0f/stash->params.width;
+ stash->ith = 1.0f/stash->params.height;
+
+ return 1;
+}
+
+int fonsResetAtlas(FONScontext* stash, int width, int height)
+{
+ int i, j;
+ if (stash == NULL) return 0;
+
+ // Flush pending glyphs.
+ fons__flush(stash);
+
+ // Create new texture
+ if (stash->params.renderResize != NULL) {
+ if (stash->params.renderResize(stash->params.userPtr, width, height) == 0)
+ return 0;
+ }
+
+ // Reset atlas
+ fons__atlasReset(stash->atlas, width, height);
+
+ // Clear texture data.
+ stash->texData = (unsigned char*)realloc(stash->texData, width * height);
+ if (stash->texData == NULL) return 0;
+ memset(stash->texData, 0, width * height);
+
+ // Reset dirty rect
+ stash->dirtyRect[0] = width;
+ stash->dirtyRect[1] = height;
+ stash->dirtyRect[2] = 0;
+ stash->dirtyRect[3] = 0;
+
+ // Reset cached glyphs
+ for (i = 0; i < stash->nfonts; i++) {
+ FONSfont* font = stash->fonts[i];
+ font->nglyphs = 0;
+ for (j = 0; j < FONS_HASH_LUT_SIZE; j++)
+ font->lut[j] = -1;
+ }
+
+ stash->params.width = width;
+ stash->params.height = height;
+ stash->itw = 1.0f/stash->params.width;
+ stash->ith = 1.0f/stash->params.height;
+
+ // Add white rect at 0,0 for debug drawing.
+ fons__addWhiteRect(stash, 2,2);
+
+ return 1;
+}
+
+#endif // FONTSTASH_IMPLEMENTATION
diff --git a/source/thirdparty/nanovg.c b/source/thirdparty/nanovg.c
new file mode 100644
index 0000000..7d226e8
--- /dev/null
+++ b/source/thirdparty/nanovg.c
@@ -0,0 +1,2960 @@
+//
+// Copyright (c) 2013 Mikko Mononen memon@inside.org
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+// 1. The origin of this software must not be misrepresented; you must not
+// claim that you wrote the original software. If you use this software
+// in a product, an acknowledgment in the product documentation would be
+// appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+// misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+//
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <memory.h>
+
+#include "android.h"
+
+#include "nanovg.h"
+
+#define FONTSTASH_IMPLEMENTATION
+#include "fontstash.h"
+
+#ifndef NVG_NO_STB
+#define STB_IMAGE_IMPLEMENTATION
+#include "../stb/stb_image.h"
+#endif
+
+#ifdef _MSC_VER
+#pragma warning(disable: 4100) // unreferenced formal parameter
+#pragma warning(disable: 4127) // conditional expression is constant
+#pragma warning(disable: 4204) // nonstandard extension used : non-constant aggregate initializer
+#pragma warning(disable: 4706) // assignment within conditional expression
+#endif
+
+#define NVG_INIT_FONTIMAGE_SIZE 512
+#define NVG_MAX_FONTIMAGE_SIZE 2048
+#define NVG_MAX_FONTIMAGES 4
+
+#define NVG_INIT_COMMANDS_SIZE 256
+#define NVG_INIT_POINTS_SIZE 128
+#define NVG_INIT_PATHS_SIZE 16
+#define NVG_INIT_VERTS_SIZE 256
+
+#ifndef NVG_MAX_STATES
+#define NVG_MAX_STATES 64
+#endif
+
+#define NVG_KAPPA90 0.5522847493f // Length proportional to radius of a cubic bezier handle for 90deg arcs.
+
+#define NVG_COUNTOF(arr) (sizeof(arr) / sizeof(0[arr]))
+
+
+enum NVGcommands {
+ NVG_MOVETO = 0,
+ NVG_LINETO = 1,
+ NVG_BEZIERTO = 2,
+ NVG_CLOSE = 3,
+ NVG_WINDING = 4,
+};
+
+enum NVGpointFlags
+{
+ NVG_PT_CORNER = 0x01,
+ NVG_PT_LEFT = 0x02,
+ NVG_PT_BEVEL = 0x04,
+ NVG_PR_INNERBEVEL = 0x08,
+};
+
+struct NVGstate {
+ NVGcompositeOperationState compositeOperation;
+ int shapeAntiAlias;
+ NVGpaint fill;
+ NVGpaint stroke;
+ float strokeWidth;
+ float miterLimit;
+ int lineJoin;
+ int lineCap;
+ float alpha;
+ float xform[6];
+ NVGscissor scissor;
+ float fontSize;
+ float letterSpacing;
+ float lineHeight;
+ float fontBlur;
+ int textAlign;
+ int fontId;
+};
+typedef struct NVGstate NVGstate;
+
+struct NVGpoint {
+ float x,y;
+ float dx, dy;
+ float len;
+ float dmx, dmy;
+ unsigned char flags;
+};
+typedef struct NVGpoint NVGpoint;
+
+struct NVGpathCache {
+ NVGpoint* points;
+ int npoints;
+ int cpoints;
+ NVGpath* paths;
+ int npaths;
+ int cpaths;
+ NVGvertex* verts;
+ int nverts;
+ int cverts;
+ float bounds[4];
+};
+typedef struct NVGpathCache NVGpathCache;
+
+struct NVGcontext {
+ NVGparams params;
+ float* commands;
+ int ccommands;
+ int ncommands;
+ float commandx, commandy;
+ NVGstate states[NVG_MAX_STATES];
+ int nstates;
+ NVGpathCache* cache;
+ float tessTol;
+ float distTol;
+ float fringeWidth;
+ float devicePxRatio;
+ struct FONScontext* fs;
+ int fontImages[NVG_MAX_FONTIMAGES];
+ int fontImageIdx;
+ int drawCallCount;
+ int fillTriCount;
+ int strokeTriCount;
+ int textTriCount;
+};
+
+static float nvg__sqrtf(float a) { return sqrtf(a); }
+static float nvg__modf(float a, float b) { return fmodf(a, b); }
+static float nvg__sinf(float a) { return sinf(a); }
+static float nvg__cosf(float a) { return cosf(a); }
+static float nvg__tanf(float a) { return tanf(a); }
+static float nvg__atan2f(float a,float b) { return atan2f(a, b); }
+static float nvg__acosf(float a) { return acosf(a); }
+
+static int nvg__mini(int a, int b) { return a < b ? a : b; }
+static int nvg__maxi(int a, int b) { return a > b ? a : b; }
+static int nvg__clampi(int a, int mn, int mx) { return a < mn ? mn : (a > mx ? mx : a); }
+static float nvg__minf(float a, float b) { return a < b ? a : b; }
+static float nvg__maxf(float a, float b) { return a > b ? a : b; }
+static float nvg__absf(float a) { return a >= 0.0f ? a : -a; }
+static float nvg__signf(float a) { return a >= 0.0f ? 1.0f : -1.0f; }
+static float nvg__clampf(float a, float mn, float mx) { return a < mn ? mn : (a > mx ? mx : a); }
+static float nvg__cross(float dx0, float dy0, float dx1, float dy1) { return dx1*dy0 - dx0*dy1; }
+
+static float nvg__normalize(float *x, float* y)
+{
+ float d = nvg__sqrtf((*x)*(*x) + (*y)*(*y));
+ if (d > 1e-6f) {
+ float id = 1.0f / d;
+ *x *= id;
+ *y *= id;
+ }
+ return d;
+}
+
+
+static void nvg__deletePathCache(NVGpathCache* c)
+{
+ if (c == NULL) return;
+ if (c->points != NULL) free(c->points);
+ if (c->paths != NULL) free(c->paths);
+ if (c->verts != NULL) free(c->verts);
+ free(c);
+}
+
+static NVGpathCache* nvg__allocPathCache(void)
+{
+ NVGpathCache* c = (NVGpathCache*)malloc(sizeof(NVGpathCache));
+ if (c == NULL) goto error;
+ memset(c, 0, sizeof(NVGpathCache));
+
+ c->points = (NVGpoint*)malloc(sizeof(NVGpoint)*NVG_INIT_POINTS_SIZE);
+ if (!c->points) goto error;
+ c->npoints = 0;
+ c->cpoints = NVG_INIT_POINTS_SIZE;
+
+ c->paths = (NVGpath*)malloc(sizeof(NVGpath)*NVG_INIT_PATHS_SIZE);
+ if (!c->paths) goto error;
+ c->npaths = 0;
+ c->cpaths = NVG_INIT_PATHS_SIZE;
+
+ c->verts = (NVGvertex*)malloc(sizeof(NVGvertex)*NVG_INIT_VERTS_SIZE);
+ if (!c->verts) goto error;
+ c->nverts = 0;
+ c->cverts = NVG_INIT_VERTS_SIZE;
+
+ return c;
+error:
+ nvg__deletePathCache(c);
+ return NULL;
+}
+
+static void nvg__setDevicePixelRatio(NVGcontext* ctx, float ratio)
+{
+ ctx->tessTol = 0.25f / ratio;
+ ctx->distTol = 0.01f / ratio;
+ ctx->fringeWidth = 1.0f / ratio;
+ ctx->devicePxRatio = ratio;
+}
+
+static NVGcompositeOperationState nvg__compositeOperationState(int op)
+{
+ int sfactor, dfactor;
+
+ if (op == NVG_SOURCE_OVER)
+ {
+ sfactor = NVG_ONE;
+ dfactor = NVG_ONE_MINUS_SRC_ALPHA;
+ }
+ else if (op == NVG_SOURCE_IN)
+ {
+ sfactor = NVG_DST_ALPHA;
+ dfactor = NVG_ZERO;
+ }
+ else if (op == NVG_SOURCE_OUT)
+ {
+ sfactor = NVG_ONE_MINUS_DST_ALPHA;
+ dfactor = NVG_ZERO;
+ }
+ else if (op == NVG_ATOP)
+ {
+ sfactor = NVG_DST_ALPHA;
+ dfactor = NVG_ONE_MINUS_SRC_ALPHA;
+ }
+ else if (op == NVG_DESTINATION_OVER)
+ {
+ sfactor = NVG_ONE_MINUS_DST_ALPHA;
+ dfactor = NVG_ONE;
+ }
+ else if (op == NVG_DESTINATION_IN)
+ {
+ sfactor = NVG_ZERO;
+ dfactor = NVG_SRC_ALPHA;
+ }
+ else if (op == NVG_DESTINATION_OUT)
+ {
+ sfactor = NVG_ZERO;
+ dfactor = NVG_ONE_MINUS_SRC_ALPHA;
+ }
+ else if (op == NVG_DESTINATION_ATOP)
+ {
+ sfactor = NVG_ONE_MINUS_DST_ALPHA;
+ dfactor = NVG_SRC_ALPHA;
+ }
+ else if (op == NVG_LIGHTER)
+ {
+ sfactor = NVG_ONE;
+ dfactor = NVG_ONE;
+ }
+ else if (op == NVG_COPY)
+ {
+ sfactor = NVG_ONE;
+ dfactor = NVG_ZERO;
+ }
+ else if (op == NVG_XOR)
+ {
+ sfactor = NVG_ONE_MINUS_DST_ALPHA;
+ dfactor = NVG_ONE_MINUS_SRC_ALPHA;
+ }
+ else
+ {
+ sfactor = NVG_ONE;
+ dfactor = NVG_ZERO;
+ }
+
+ NVGcompositeOperationState state;
+ state.srcRGB = sfactor;
+ state.dstRGB = dfactor;
+ state.srcAlpha = sfactor;
+ state.dstAlpha = dfactor;
+ return state;
+}
+
+static NVGstate* nvg__getState(NVGcontext* ctx)
+{
+ return &ctx->states[ctx->nstates-1];
+}
+
+NVGcontext* nvgCreateInternal(NVGparams* params)
+{
+ FONSparams fontParams;
+ NVGcontext* ctx = (NVGcontext*)malloc(sizeof(NVGcontext));
+ int i;
+ if (ctx == NULL) goto error;
+ memset(ctx, 0, sizeof(NVGcontext));
+
+ ctx->params = *params;
+ for (i = 0; i < NVG_MAX_FONTIMAGES; i++)
+ ctx->fontImages[i] = 0;
+
+ ctx->commands = (float*)malloc(sizeof(float)*NVG_INIT_COMMANDS_SIZE);
+ if (!ctx->commands) goto error;
+ ctx->ncommands = 0;
+ ctx->ccommands = NVG_INIT_COMMANDS_SIZE;
+
+ ctx->cache = nvg__allocPathCache();
+ if (ctx->cache == NULL) goto error;
+
+ nvgSave(ctx);
+ nvgReset(ctx);
+
+ nvg__setDevicePixelRatio(ctx, 1.0f);
+
+ if (ctx->params.renderCreate(ctx->params.userPtr) == 0) goto error;
+
+ // Init font rendering
+ memset(&fontParams, 0, sizeof(fontParams));
+ fontParams.width = NVG_INIT_FONTIMAGE_SIZE;
+ fontParams.height = NVG_INIT_FONTIMAGE_SIZE;
+ fontParams.flags = FONS_ZERO_TOPLEFT;
+ fontParams.renderCreate = NULL;
+ fontParams.renderUpdate = NULL;
+ fontParams.renderDraw = NULL;
+ fontParams.renderDelete = NULL;
+ fontParams.userPtr = NULL;
+ ctx->fs = fonsCreateInternal(&fontParams);
+ if (ctx->fs == NULL) goto error;
+
+ // Create font texture
+ ctx->fontImages[0] = ctx->params.renderCreateTexture(ctx->params.userPtr, NVG_TEXTURE_ALPHA, fontParams.width, fontParams.height, 0, NULL);
+ if (ctx->fontImages[0] == 0) goto error;
+ ctx->fontImageIdx = 0;
+
+ return ctx;
+
+error:
+ nvgDeleteInternal(ctx);
+ return 0;
+}
+
+NVGparams* nvgInternalParams(NVGcontext* ctx)
+{
+ return &ctx->params;
+}
+
+void nvgDeleteInternal(NVGcontext* ctx)
+{
+ int i;
+ if (ctx == NULL) return;
+ if (ctx->commands != NULL) free(ctx->commands);
+ if (ctx->cache != NULL) nvg__deletePathCache(ctx->cache);
+
+ if (ctx->fs)
+ fonsDeleteInternal(ctx->fs);
+
+ for (i = 0; i < NVG_MAX_FONTIMAGES; i++) {
+ if (ctx->fontImages[i] != 0) {
+ nvgDeleteImage(ctx, ctx->fontImages[i]);
+ ctx->fontImages[i] = 0;
+ }
+ }
+
+ if (ctx->params.renderDelete != NULL)
+ ctx->params.renderDelete(ctx->params.userPtr);
+
+ free(ctx);
+}
+
+void nvgBeginFrame(NVGcontext* ctx, float windowWidth, float windowHeight, float devicePixelRatio)
+{
+/* printf("Tris: draws:%d fill:%d stroke:%d text:%d TOT:%d\n",
+ ctx->drawCallCount, ctx->fillTriCount, ctx->strokeTriCount, ctx->textTriCount,
+ ctx->fillTriCount+ctx->strokeTriCount+ctx->textTriCount);*/
+
+ ctx->nstates = 0;
+ nvgSave(ctx);
+ nvgReset(ctx);
+
+ nvg__setDevicePixelRatio(ctx, devicePixelRatio);
+
+ ctx->params.renderViewport(ctx->params.userPtr, windowWidth, windowHeight, devicePixelRatio);
+
+ ctx->drawCallCount = 0;
+ ctx->fillTriCount = 0;
+ ctx->strokeTriCount = 0;
+ ctx->textTriCount = 0;
+}
+
+void nvgCancelFrame(NVGcontext* ctx)
+{
+ ctx->params.renderCancel(ctx->params.userPtr);
+}
+
+void nvgEndFrame(NVGcontext* ctx)
+{
+ ctx->params.renderFlush(ctx->params.userPtr);
+ if (ctx->fontImageIdx != 0) {
+ int fontImage = ctx->fontImages[ctx->fontImageIdx];
+ ctx->fontImages[ctx->fontImageIdx] = 0;
+ int i, j, iw, ih;
+ // delete images that smaller than current one
+ if (fontImage == 0)
+ return;
+ nvgImageSize(ctx, fontImage, &iw, &ih);
+ for (i = j = 0; i < ctx->fontImageIdx; i++) {
+ if (ctx->fontImages[i] != 0) {
+ int nw, nh;
+ int image = ctx->fontImages[i];
+ ctx->fontImages[i] = 0;
+ nvgImageSize(ctx, image, &nw, &nh);
+ if (nw < iw || nh < ih)
+ nvgDeleteImage(ctx, image);
+ else
+ ctx->fontImages[j++] = image;
+ }
+ }
+ // make current font image to first
+ ctx->fontImages[j] = ctx->fontImages[0];
+ ctx->fontImages[0] = fontImage;
+ ctx->fontImageIdx = 0;
+ }
+}
+
+NVGcolor nvgRGB(unsigned char r, unsigned char g, unsigned char b)
+{
+ return nvgRGBA(r,g,b,255);
+}
+
+NVGcolor nvgRGBf(float r, float g, float b)
+{
+ return nvgRGBAf(r,g,b,1.0f);
+}
+
+NVGcolor nvgRGBA(unsigned char r, unsigned char g, unsigned char b, unsigned char a)
+{
+ NVGcolor color;
+ // Use longer initialization to suppress warning.
+ color.r = r / 255.0f;
+ color.g = g / 255.0f;
+ color.b = b / 255.0f;
+ color.a = a / 255.0f;
+ return color;
+}
+
+NVGcolor nvgRGBAf(float r, float g, float b, float a)
+{
+ NVGcolor color;
+ // Use longer initialization to suppress warning.
+ color.r = r;
+ color.g = g;
+ color.b = b;
+ color.a = a;
+ return color;
+}
+
+NVGcolor nvgTransRGBA(NVGcolor c, unsigned char a)
+{
+ c.a = a / 255.0f;
+ return c;
+}
+
+NVGcolor nvgTransRGBAf(NVGcolor c, float a)
+{
+ c.a = a;
+ return c;
+}
+
+NVGcolor nvgLerpRGBA(NVGcolor c0, NVGcolor c1, float u)
+{
+ int i;
+ float oneminu;
+ NVGcolor cint = {{{0}}};
+
+ u = nvg__clampf(u, 0.0f, 1.0f);
+ oneminu = 1.0f - u;
+ for( i = 0; i <4; i++ )
+ {
+ cint.rgba[i] = c0.rgba[i] * oneminu + c1.rgba[i] * u;
+ }
+
+ return cint;
+}
+
+NVGcolor nvgHSL(float h, float s, float l)
+{
+ return nvgHSLA(h,s,l,255);
+}
+
+static float nvg__hue(float h, float m1, float m2)
+{
+ if (h < 0) h += 1;
+ if (h > 1) h -= 1;
+ if (h < 1.0f/6.0f)
+ return m1 + (m2 - m1) * h * 6.0f;
+ else if (h < 3.0f/6.0f)
+ return m2;
+ else if (h < 4.0f/6.0f)
+ return m1 + (m2 - m1) * (2.0f/3.0f - h) * 6.0f;
+ return m1;
+}
+
+NVGcolor nvgHSLA(float h, float s, float l, unsigned char a)
+{
+ float m1, m2;
+ NVGcolor col;
+ h = nvg__modf(h, 1.0f);
+ if (h < 0.0f) h += 1.0f;
+ s = nvg__clampf(s, 0.0f, 1.0f);
+ l = nvg__clampf(l, 0.0f, 1.0f);
+ m2 = l <= 0.5f ? (l * (1 + s)) : (l + s - l * s);
+ m1 = 2 * l - m2;
+ col.r = nvg__clampf(nvg__hue(h + 1.0f/3.0f, m1, m2), 0.0f, 1.0f);
+ col.g = nvg__clampf(nvg__hue(h, m1, m2), 0.0f, 1.0f);
+ col.b = nvg__clampf(nvg__hue(h - 1.0f/3.0f, m1, m2), 0.0f, 1.0f);
+ col.a = a/255.0f;
+ return col;
+}
+
+void nvgTransformIdentity(float* t)
+{
+ t[0] = 1.0f; t[1] = 0.0f;
+ t[2] = 0.0f; t[3] = 1.0f;
+ t[4] = 0.0f; t[5] = 0.0f;
+}
+
+void nvgTransformTranslate(float* t, float tx, float ty)
+{
+ t[0] = 1.0f; t[1] = 0.0f;
+ t[2] = 0.0f; t[3] = 1.0f;
+ t[4] = tx; t[5] = ty;
+}
+
+void nvgTransformScale(float* t, float sx, float sy)
+{
+ t[0] = sx; t[1] = 0.0f;
+ t[2] = 0.0f; t[3] = sy;
+ t[4] = 0.0f; t[5] = 0.0f;
+}
+
+void nvgTransformRotate(float* t, float a)
+{
+ float cs = nvg__cosf(a), sn = nvg__sinf(a);
+ t[0] = cs; t[1] = sn;
+ t[2] = -sn; t[3] = cs;
+ t[4] = 0.0f; t[5] = 0.0f;
+}
+
+void nvgTransformSkewX(float* t, float a)
+{
+ t[0] = 1.0f; t[1] = 0.0f;
+ t[2] = nvg__tanf(a); t[3] = 1.0f;
+ t[4] = 0.0f; t[5] = 0.0f;
+}
+
+void nvgTransformSkewY(float* t, float a)
+{
+ t[0] = 1.0f; t[1] = nvg__tanf(a);
+ t[2] = 0.0f; t[3] = 1.0f;
+ t[4] = 0.0f; t[5] = 0.0f;
+}
+
+void nvgTransformMultiply(float* t, const float* s)
+{
+ float t0 = t[0] * s[0] + t[1] * s[2];
+ float t2 = t[2] * s[0] + t[3] * s[2];
+ float t4 = t[4] * s[0] + t[5] * s[2] + s[4];
+ t[1] = t[0] * s[1] + t[1] * s[3];
+ t[3] = t[2] * s[1] + t[3] * s[3];
+ t[5] = t[4] * s[1] + t[5] * s[3] + s[5];
+ t[0] = t0;
+ t[2] = t2;
+ t[4] = t4;
+}
+
+void nvgTransformPremultiply(float* t, const float* s)
+{
+ float s2[6];
+ memcpy(s2, s, sizeof(float)*6);
+ nvgTransformMultiply(s2, t);
+ memcpy(t, s2, sizeof(float)*6);
+}
+
+int nvgTransformInverse(float* inv, const float* t)
+{
+ double invdet, det = (double)t[0] * t[3] - (double)t[2] * t[1];
+ if (det > -1e-6 && det < 1e-6) {
+ nvgTransformIdentity(inv);
+ return 0;
+ }
+ invdet = 1.0 / det;
+ inv[0] = (float)(t[3] * invdet);
+ inv[2] = (float)(-t[2] * invdet);
+ inv[4] = (float)(((double)t[2] * t[5] - (double)t[3] * t[4]) * invdet);
+ inv[1] = (float)(-t[1] * invdet);
+ inv[3] = (float)(t[0] * invdet);
+ inv[5] = (float)(((double)t[1] * t[4] - (double)t[0] * t[5]) * invdet);
+ return 1;
+}
+
+void nvgTransformPoint(float* dx, float* dy, const float* t, float sx, float sy)
+{
+ *dx = sx*t[0] + sy*t[2] + t[4];
+ *dy = sx*t[1] + sy*t[3] + t[5];
+}
+
+float nvgDegToRad(float deg)
+{
+ return deg / 180.0f * NVG_PI;
+}
+
+float nvgRadToDeg(float rad)
+{
+ return rad / NVG_PI * 180.0f;
+}
+
+static void nvg__setPaintColor(NVGpaint* p, NVGcolor color)
+{
+ memset(p, 0, sizeof(*p));
+ nvgTransformIdentity(p->xform);
+ p->radius = 0.0f;
+ p->feather = 1.0f;
+ p->innerColor = color;
+ p->outerColor = color;
+}
+
+
+// State handling
+void nvgSave(NVGcontext* ctx)
+{
+ if (ctx->nstates >= NVG_MAX_STATES)
+ return;
+ if (ctx->nstates > 0)
+ memcpy(&ctx->states[ctx->nstates], &ctx->states[ctx->nstates-1], sizeof(NVGstate));
+ ctx->nstates++;
+}
+
+void nvgRestore(NVGcontext* ctx)
+{
+ if (ctx->nstates <= 1)
+ return;
+ ctx->nstates--;
+}
+
+void nvgReset(NVGcontext* ctx)
+{
+ NVGstate* state = nvg__getState(ctx);
+ memset(state, 0, sizeof(*state));
+
+ nvg__setPaintColor(&state->fill, nvgRGBA(255,255,255,255));
+ nvg__setPaintColor(&state->stroke, nvgRGBA(0,0,0,255));
+ state->compositeOperation = nvg__compositeOperationState(NVG_SOURCE_OVER);
+ state->shapeAntiAlias = 1;
+ state->strokeWidth = 1.0f;
+ state->miterLimit = 10.0f;
+ state->lineCap = NVG_BUTT;
+ state->lineJoin = NVG_MITER;
+ state->alpha = 1.0f;
+ nvgTransformIdentity(state->xform);
+
+ state->scissor.extent[0] = -1.0f;
+ state->scissor.extent[1] = -1.0f;
+
+ state->fontSize = 16.0f;
+ state->letterSpacing = 0.0f;
+ state->lineHeight = 1.0f;
+ state->fontBlur = 0.0f;
+ state->textAlign = NVG_ALIGN_LEFT | NVG_ALIGN_BASELINE;
+ state->fontId = 0;
+}
+
+// State setting
+void nvgShapeAntiAlias(NVGcontext* ctx, int enabled)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->shapeAntiAlias = enabled;
+}
+
+void nvgStrokeWidth(NVGcontext* ctx, float width)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->strokeWidth = width;
+}
+
+void nvgMiterLimit(NVGcontext* ctx, float limit)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->miterLimit = limit;
+}
+
+void nvgLineCap(NVGcontext* ctx, int cap)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->lineCap = cap;
+}
+
+void nvgLineJoin(NVGcontext* ctx, int join)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->lineJoin = join;
+}
+
+void nvgGlobalAlpha(NVGcontext* ctx, float alpha)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->alpha = alpha;
+}
+
+void nvgTransform(NVGcontext* ctx, float a, float b, float c, float d, float e, float f)
+{
+ NVGstate* state = nvg__getState(ctx);
+ float t[6] = { a, b, c, d, e, f };
+ nvgTransformPremultiply(state->xform, t);
+}
+
+void nvgResetTransform(NVGcontext* ctx)
+{
+ NVGstate* state = nvg__getState(ctx);
+ nvgTransformIdentity(state->xform);
+}
+
+void nvgTranslate(NVGcontext* ctx, float x, float y)
+{
+ NVGstate* state = nvg__getState(ctx);
+ float t[6];
+ nvgTransformTranslate(t, x,y);
+ nvgTransformPremultiply(state->xform, t);
+}
+
+void nvgRotate(NVGcontext* ctx, float angle)
+{
+ NVGstate* state = nvg__getState(ctx);
+ float t[6];
+ nvgTransformRotate(t, angle);
+ nvgTransformPremultiply(state->xform, t);
+}
+
+void nvgSkewX(NVGcontext* ctx, float angle)
+{
+ NVGstate* state = nvg__getState(ctx);
+ float t[6];
+ nvgTransformSkewX(t, angle);
+ nvgTransformPremultiply(state->xform, t);
+}
+
+void nvgSkewY(NVGcontext* ctx, float angle)
+{
+ NVGstate* state = nvg__getState(ctx);
+ float t[6];
+ nvgTransformSkewY(t, angle);
+ nvgTransformPremultiply(state->xform, t);
+}
+
+void nvgScale(NVGcontext* ctx, float x, float y)
+{
+ NVGstate* state = nvg__getState(ctx);
+ float t[6];
+ nvgTransformScale(t, x,y);
+ nvgTransformPremultiply(state->xform, t);
+}
+
+void nvgCurrentTransform(NVGcontext* ctx, float* xform)
+{
+ NVGstate* state = nvg__getState(ctx);
+ if (xform == NULL) return;
+ memcpy(xform, state->xform, sizeof(float)*6);
+}
+
+void nvgStrokeColor(NVGcontext* ctx, NVGcolor color)
+{
+ NVGstate* state = nvg__getState(ctx);
+ nvg__setPaintColor(&state->stroke, color);
+}
+
+void nvgStrokePaint(NVGcontext* ctx, NVGpaint paint)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->stroke = paint;
+ nvgTransformMultiply(state->stroke.xform, state->xform);
+}
+
+void nvgFillColor(NVGcontext* ctx, NVGcolor color)
+{
+ NVGstate* state = nvg__getState(ctx);
+ nvg__setPaintColor(&state->fill, color);
+}
+
+void nvgFillPaint(NVGcontext* ctx, NVGpaint paint)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->fill = paint;
+ nvgTransformMultiply(state->fill.xform, state->xform);
+}
+
+#ifndef NVG_NO_STB
+int nvgCreateImage(NVGcontext* ctx, const char* filename, int imageFlags)
+{
+ int w, h, n, image;
+ unsigned char* img;
+ stbi_set_unpremultiply_on_load(1);
+ stbi_convert_iphone_png_to_rgb(1);
+ img = stbi_load(filename, &w, &h, &n, 4);
+ if (img == NULL) {
+// printf("Failed to load %s - %s\n", filename, stbi_failure_reason());
+ return 0;
+ }
+ image = nvgCreateImageRGBA(ctx, w, h, imageFlags, img);
+ stbi_image_free(img);
+ return image;
+}
+
+int nvgCreateImageMem(NVGcontext* ctx, int imageFlags, unsigned char* data, int ndata)
+{
+ int w, h, n, image;
+ unsigned char* img = stbi_load_from_memory(data, ndata, &w, &h, &n, 4);
+ if (img == NULL) {
+// printf("Failed to load %s - %s\n", filename, stbi_failure_reason());
+ return 0;
+ }
+ image = nvgCreateImageRGBA(ctx, w, h, imageFlags, img);
+ stbi_image_free(img);
+ return image;
+}
+#endif
+
+int nvgCreateImageRGBA(NVGcontext* ctx, int w, int h, int imageFlags, const unsigned char* data)
+{
+ return ctx->params.renderCreateTexture(ctx->params.userPtr, NVG_TEXTURE_RGBA, w, h, imageFlags, data);
+}
+
+int nvgCreateImageAlpha(NVGcontext* ctx, int w, int h, int imageFlags, const unsigned char* data)
+{
+ return ctx->params.renderCreateTexture(ctx->params.userPtr, NVG_TEXTURE_ALPHA, w, h, imageFlags, data);
+}
+
+void nvgUpdateImage(NVGcontext* ctx, int image, const unsigned char* data)
+{
+ int w, h;
+ ctx->params.renderGetTextureSize(ctx->params.userPtr, image, &w, &h);
+ ctx->params.renderUpdateTexture(ctx->params.userPtr, image, 0,0, w,h, data);
+}
+
+void nvgImageSize(NVGcontext* ctx, int image, int* w, int* h)
+{
+ ctx->params.renderGetTextureSize(ctx->params.userPtr, image, w, h);
+}
+
+void nvgDeleteImage(NVGcontext* ctx, int image)
+{
+ ctx->params.renderDeleteTexture(ctx->params.userPtr, image);
+}
+
+NVGpaint nvgLinearGradient(NVGcontext* ctx,
+ float sx, float sy, float ex, float ey,
+ NVGcolor icol, NVGcolor ocol)
+{
+ NVGpaint p;
+ float dx, dy, d;
+ const float large = 1e5;
+ NVG_NOTUSED(ctx);
+ memset(&p, 0, sizeof(p));
+
+ // Calculate transform aligned to the line
+ dx = ex - sx;
+ dy = ey - sy;
+ d = sqrtf(dx*dx + dy*dy);
+ if (d > 0.0001f) {
+ dx /= d;
+ dy /= d;
+ } else {
+ dx = 0;
+ dy = 1;
+ }
+
+ p.xform[0] = dy; p.xform[1] = -dx;
+ p.xform[2] = dx; p.xform[3] = dy;
+ p.xform[4] = sx - dx*large; p.xform[5] = sy - dy*large;
+
+ p.extent[0] = large;
+ p.extent[1] = large + d*0.5f;
+
+ p.radius = 0.0f;
+
+ p.feather = nvg__maxf(1.0f, d);
+
+ p.innerColor = icol;
+ p.outerColor = ocol;
+
+ return p;
+}
+
+NVGpaint nvgRadialGradient(NVGcontext* ctx,
+ float cx, float cy, float inr, float outr,
+ NVGcolor icol, NVGcolor ocol)
+{
+ NVGpaint p;
+ float r = (inr+outr)*0.5f;
+ float f = (outr-inr);
+ NVG_NOTUSED(ctx);
+ memset(&p, 0, sizeof(p));
+
+ nvgTransformIdentity(p.xform);
+ p.xform[4] = cx;
+ p.xform[5] = cy;
+
+ p.extent[0] = r;
+ p.extent[1] = r;
+
+ p.radius = r;
+
+ p.feather = nvg__maxf(1.0f, f);
+
+ p.innerColor = icol;
+ p.outerColor = ocol;
+
+ return p;
+}
+
+NVGpaint nvgBoxGradient(NVGcontext* ctx,
+ float x, float y, float w, float h, float r, float f,
+ NVGcolor icol, NVGcolor ocol)
+{
+ NVGpaint p;
+ NVG_NOTUSED(ctx);
+ memset(&p, 0, sizeof(p));
+
+ nvgTransformIdentity(p.xform);
+ p.xform[4] = x+w*0.5f;
+ p.xform[5] = y+h*0.5f;
+
+ p.extent[0] = w*0.5f;
+ p.extent[1] = h*0.5f;
+
+ p.radius = r;
+
+ p.feather = nvg__maxf(1.0f, f);
+
+ p.innerColor = icol;
+ p.outerColor = ocol;
+
+ return p;
+}
+
+
+NVGpaint nvgImagePattern(NVGcontext* ctx,
+ float cx, float cy, float w, float h, float angle,
+ int image, float alpha)
+{
+ NVGpaint p;
+ NVG_NOTUSED(ctx);
+ memset(&p, 0, sizeof(p));
+
+ nvgTransformRotate(p.xform, angle);
+ p.xform[4] = cx;
+ p.xform[5] = cy;
+
+ p.extent[0] = w;
+ p.extent[1] = h;
+
+ p.image = image;
+
+ p.innerColor = p.outerColor = nvgRGBAf(1,1,1,alpha);
+
+ return p;
+}
+
+// Scissoring
+void nvgScissor(NVGcontext* ctx, float x, float y, float w, float h)
+{
+ NVGstate* state = nvg__getState(ctx);
+
+ w = nvg__maxf(0.0f, w);
+ h = nvg__maxf(0.0f, h);
+
+ nvgTransformIdentity(state->scissor.xform);
+ state->scissor.xform[4] = x+w*0.5f;
+ state->scissor.xform[5] = y+h*0.5f;
+ nvgTransformMultiply(state->scissor.xform, state->xform);
+
+ state->scissor.extent[0] = w*0.5f;
+ state->scissor.extent[1] = h*0.5f;
+}
+
+static void nvg__isectRects(float* dst,
+ float ax, float ay, float aw, float ah,
+ float bx, float by, float bw, float bh)
+{
+ float minx = nvg__maxf(ax, bx);
+ float miny = nvg__maxf(ay, by);
+ float maxx = nvg__minf(ax+aw, bx+bw);
+ float maxy = nvg__minf(ay+ah, by+bh);
+ dst[0] = minx;
+ dst[1] = miny;
+ dst[2] = nvg__maxf(0.0f, maxx - minx);
+ dst[3] = nvg__maxf(0.0f, maxy - miny);
+}
+
+void nvgIntersectScissor(NVGcontext* ctx, float x, float y, float w, float h)
+{
+ NVGstate* state = nvg__getState(ctx);
+ float pxform[6], invxorm[6];
+ float rect[4];
+ float ex, ey, tex, tey;
+
+ // If no previous scissor has been set, set the scissor as current scissor.
+ if (state->scissor.extent[0] < 0) {
+ nvgScissor(ctx, x, y, w, h);
+ return;
+ }
+
+ // Transform the current scissor rect into current transform space.
+ // If there is difference in rotation, this will be approximation.
+ memcpy(pxform, state->scissor.xform, sizeof(float)*6);
+ ex = state->scissor.extent[0];
+ ey = state->scissor.extent[1];
+ nvgTransformInverse(invxorm, state->xform);
+ nvgTransformMultiply(pxform, invxorm);
+ tex = ex*nvg__absf(pxform[0]) + ey*nvg__absf(pxform[2]);
+ tey = ex*nvg__absf(pxform[1]) + ey*nvg__absf(pxform[3]);
+
+ // Intersect rects.
+ nvg__isectRects(rect, pxform[4]-tex,pxform[5]-tey,tex*2,tey*2, x,y,w,h);
+
+ nvgScissor(ctx, rect[0], rect[1], rect[2], rect[3]);
+}
+
+void nvgResetScissor(NVGcontext* ctx)
+{
+ NVGstate* state = nvg__getState(ctx);
+ memset(state->scissor.xform, 0, sizeof(state->scissor.xform));
+ state->scissor.extent[0] = -1.0f;
+ state->scissor.extent[1] = -1.0f;
+}
+
+// Global composite operation.
+void nvgGlobalCompositeOperation(NVGcontext* ctx, int op)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->compositeOperation = nvg__compositeOperationState(op);
+}
+
+void nvgGlobalCompositeBlendFunc(NVGcontext* ctx, int sfactor, int dfactor)
+{
+ nvgGlobalCompositeBlendFuncSeparate(ctx, sfactor, dfactor, sfactor, dfactor);
+}
+
+void nvgGlobalCompositeBlendFuncSeparate(NVGcontext* ctx, int srcRGB, int dstRGB, int srcAlpha, int dstAlpha)
+{
+ NVGcompositeOperationState op;
+ op.srcRGB = srcRGB;
+ op.dstRGB = dstRGB;
+ op.srcAlpha = srcAlpha;
+ op.dstAlpha = dstAlpha;
+
+ NVGstate* state = nvg__getState(ctx);
+ state->compositeOperation = op;
+}
+
+static int nvg__ptEquals(float x1, float y1, float x2, float y2, float tol)
+{
+ float dx = x2 - x1;
+ float dy = y2 - y1;
+ return dx*dx + dy*dy < tol*tol;
+}
+
+static float nvg__distPtSeg(float x, float y, float px, float py, float qx, float qy)
+{
+ float pqx, pqy, dx, dy, d, t;
+ pqx = qx-px;
+ pqy = qy-py;
+ dx = x-px;
+ dy = y-py;
+ d = pqx*pqx + pqy*pqy;
+ t = pqx*dx + pqy*dy;
+ if (d > 0) t /= d;
+ if (t < 0) t = 0;
+ else if (t > 1) t = 1;
+ dx = px + t*pqx - x;
+ dy = py + t*pqy - y;
+ return dx*dx + dy*dy;
+}
+
+static void nvg__appendCommands(NVGcontext* ctx, float* vals, int nvals)
+{
+ NVGstate* state = nvg__getState(ctx);
+ int i;
+
+ if (ctx->ncommands+nvals > ctx->ccommands) {
+ float* commands;
+ int ccommands = ctx->ncommands+nvals + ctx->ccommands/2;
+ commands = (float*)realloc(ctx->commands, sizeof(float)*ccommands);
+ if (commands == NULL) return;
+ ctx->commands = commands;
+ ctx->ccommands = ccommands;
+ }
+
+ if ((int)vals[0] != NVG_CLOSE && (int)vals[0] != NVG_WINDING) {
+ ctx->commandx = vals[nvals-2];
+ ctx->commandy = vals[nvals-1];
+ }
+
+ // transform commands
+ i = 0;
+ while (i < nvals) {
+ int cmd = (int)vals[i];
+ switch (cmd) {
+ case NVG_MOVETO:
+ nvgTransformPoint(&vals[i+1],&vals[i+2], state->xform, vals[i+1],vals[i+2]);
+ i += 3;
+ break;
+ case NVG_LINETO:
+ nvgTransformPoint(&vals[i+1],&vals[i+2], state->xform, vals[i+1],vals[i+2]);
+ i += 3;
+ break;
+ case NVG_BEZIERTO:
+ nvgTransformPoint(&vals[i+1],&vals[i+2], state->xform, vals[i+1],vals[i+2]);
+ nvgTransformPoint(&vals[i+3],&vals[i+4], state->xform, vals[i+3],vals[i+4]);
+ nvgTransformPoint(&vals[i+5],&vals[i+6], state->xform, vals[i+5],vals[i+6]);
+ i += 7;
+ break;
+ case NVG_CLOSE:
+ i++;
+ break;
+ case NVG_WINDING:
+ i += 2;
+ break;
+ default:
+ i++;
+ }
+ }
+
+ memcpy(&ctx->commands[ctx->ncommands], vals, nvals*sizeof(float));
+
+ ctx->ncommands += nvals;
+}
+
+
+static void nvg__clearPathCache(NVGcontext* ctx)
+{
+ ctx->cache->npoints = 0;
+ ctx->cache->npaths = 0;
+}
+
+static NVGpath* nvg__lastPath(NVGcontext* ctx)
+{
+ if (ctx->cache->npaths > 0)
+ return &ctx->cache->paths[ctx->cache->npaths-1];
+ return NULL;
+}
+
+static void nvg__addPath(NVGcontext* ctx)
+{
+ NVGpath* path;
+ if (ctx->cache->npaths+1 > ctx->cache->cpaths) {
+ NVGpath* paths;
+ int cpaths = ctx->cache->npaths+1 + ctx->cache->cpaths/2;
+ paths = (NVGpath*)realloc(ctx->cache->paths, sizeof(NVGpath)*cpaths);
+ if (paths == NULL) return;
+ ctx->cache->paths = paths;
+ ctx->cache->cpaths = cpaths;
+ }
+ path = &ctx->cache->paths[ctx->cache->npaths];
+ memset(path, 0, sizeof(*path));
+ path->first = ctx->cache->npoints;
+ path->winding = NVG_CCW;
+
+ ctx->cache->npaths++;
+}
+
+static NVGpoint* nvg__lastPoint(NVGcontext* ctx)
+{
+ if (ctx->cache->npoints > 0)
+ return &ctx->cache->points[ctx->cache->npoints-1];
+ return NULL;
+}
+
+static void nvg__addPoint(NVGcontext* ctx, float x, float y, int flags)
+{
+ NVGpath* path = nvg__lastPath(ctx);
+ NVGpoint* pt;
+ if (path == NULL) return;
+
+ if (path->count > 0 && ctx->cache->npoints > 0) {
+ pt = nvg__lastPoint(ctx);
+ if (nvg__ptEquals(pt->x,pt->y, x,y, ctx->distTol)) {
+ pt->flags |= flags;
+ return;
+ }
+ }
+
+ if (ctx->cache->npoints+1 > ctx->cache->cpoints) {
+ NVGpoint* points;
+ int cpoints = ctx->cache->npoints+1 + ctx->cache->cpoints/2;
+ points = (NVGpoint*)realloc(ctx->cache->points, sizeof(NVGpoint)*cpoints);
+ if (points == NULL) return;
+ ctx->cache->points = points;
+ ctx->cache->cpoints = cpoints;
+ }
+
+ pt = &ctx->cache->points[ctx->cache->npoints];
+ memset(pt, 0, sizeof(*pt));
+ pt->x = x;
+ pt->y = y;
+ pt->flags = (unsigned char)flags;
+
+ ctx->cache->npoints++;
+ path->count++;
+}
+
+static void nvg__closePath(NVGcontext* ctx)
+{
+ NVGpath* path = nvg__lastPath(ctx);
+ if (path == NULL) return;
+ path->closed = 1;
+}
+
+static void nvg__pathWinding(NVGcontext* ctx, int winding)
+{
+ NVGpath* path = nvg__lastPath(ctx);
+ if (path == NULL) return;
+ path->winding = winding;
+}
+
+static float nvg__getAverageScale(float *t)
+{
+ float sx = sqrtf(t[0]*t[0] + t[2]*t[2]);
+ float sy = sqrtf(t[1]*t[1] + t[3]*t[3]);
+ return (sx + sy) * 0.5f;
+}
+
+static NVGvertex* nvg__allocTempVerts(NVGcontext* ctx, int nverts)
+{
+ if (nverts > ctx->cache->cverts) {
+ NVGvertex* verts;
+ int cverts = (nverts + 0xff) & ~0xff; // Round up to prevent allocations when things change just slightly.
+ verts = (NVGvertex*)realloc(ctx->cache->verts, sizeof(NVGvertex)*cverts);
+ if (verts == NULL) return NULL;
+ ctx->cache->verts = verts;
+ ctx->cache->cverts = cverts;
+ }
+
+ return ctx->cache->verts;
+}
+
+static float nvg__triarea2(float ax, float ay, float bx, float by, float cx, float cy)
+{
+ float abx = bx - ax;
+ float aby = by - ay;
+ float acx = cx - ax;
+ float acy = cy - ay;
+ return acx*aby - abx*acy;
+}
+
+static float nvg__polyArea(NVGpoint* pts, int npts)
+{
+ int i;
+ float area = 0;
+ for (i = 2; i < npts; i++) {
+ NVGpoint* a = &pts[0];
+ NVGpoint* b = &pts[i-1];
+ NVGpoint* c = &pts[i];
+ area += nvg__triarea2(a->x,a->y, b->x,b->y, c->x,c->y);
+ }
+ return area * 0.5f;
+}
+
+static void nvg__polyReverse(NVGpoint* pts, int npts)
+{
+ NVGpoint tmp;
+ int i = 0, j = npts-1;
+ while (i < j) {
+ tmp = pts[i];
+ pts[i] = pts[j];
+ pts[j] = tmp;
+ i++;
+ j--;
+ }
+}
+
+
+static void nvg__vset(NVGvertex* vtx, float x, float y, float u, float v)
+{
+ vtx->x = x;
+ vtx->y = y;
+ vtx->u = u;
+ vtx->v = v;
+}
+
+static void nvg__tesselateBezier(NVGcontext* ctx,
+ float x1, float y1, float x2, float y2,
+ float x3, float y3, float x4, float y4,
+ int level, int type)
+{
+ float x12,y12,x23,y23,x34,y34,x123,y123,x234,y234,x1234,y1234;
+ float dx,dy,d2,d3;
+
+ if (level > 10) return;
+
+ x12 = (x1+x2)*0.5f;
+ y12 = (y1+y2)*0.5f;
+ x23 = (x2+x3)*0.5f;
+ y23 = (y2+y3)*0.5f;
+ x34 = (x3+x4)*0.5f;
+ y34 = (y3+y4)*0.5f;
+ x123 = (x12+x23)*0.5f;
+ y123 = (y12+y23)*0.5f;
+
+ dx = x4 - x1;
+ dy = y4 - y1;
+ d2 = nvg__absf(((x2 - x4) * dy - (y2 - y4) * dx));
+ d3 = nvg__absf(((x3 - x4) * dy - (y3 - y4) * dx));
+
+ if ((d2 + d3)*(d2 + d3) < ctx->tessTol * (dx*dx + dy*dy)) {
+ nvg__addPoint(ctx, x4, y4, type);
+ return;
+ }
+
+/* if (nvg__absf(x1+x3-x2-x2) + nvg__absf(y1+y3-y2-y2) + nvg__absf(x2+x4-x3-x3) + nvg__absf(y2+y4-y3-y3) < ctx->tessTol) {
+ nvg__addPoint(ctx, x4, y4, type);
+ return;
+ }*/
+
+ x234 = (x23+x34)*0.5f;
+ y234 = (y23+y34)*0.5f;
+ x1234 = (x123+x234)*0.5f;
+ y1234 = (y123+y234)*0.5f;
+
+ nvg__tesselateBezier(ctx, x1,y1, x12,y12, x123,y123, x1234,y1234, level+1, 0);
+ nvg__tesselateBezier(ctx, x1234,y1234, x234,y234, x34,y34, x4,y4, level+1, type);
+}
+
+static void nvg__flattenPaths(NVGcontext* ctx)
+{
+ NVGpathCache* cache = ctx->cache;
+// NVGstate* state = nvg__getState(ctx);
+ NVGpoint* last;
+ NVGpoint* p0;
+ NVGpoint* p1;
+ NVGpoint* pts;
+ NVGpath* path;
+ int i, j;
+ float* cp1;
+ float* cp2;
+ float* p;
+ float area;
+
+ if (cache->npaths > 0)
+ return;
+
+ // Flatten
+ i = 0;
+ while (i < ctx->ncommands) {
+ int cmd = (int)ctx->commands[i];
+ switch (cmd) {
+ case NVG_MOVETO:
+ nvg__addPath(ctx);
+ p = &ctx->commands[i+1];
+ nvg__addPoint(ctx, p[0], p[1], NVG_PT_CORNER);
+ i += 3;
+ break;
+ case NVG_LINETO:
+ p = &ctx->commands[i+1];
+ nvg__addPoint(ctx, p[0], p[1], NVG_PT_CORNER);
+ i += 3;
+ break;
+ case NVG_BEZIERTO:
+ last = nvg__lastPoint(ctx);
+ if (last != NULL) {
+ cp1 = &ctx->commands[i+1];
+ cp2 = &ctx->commands[i+3];
+ p = &ctx->commands[i+5];
+ nvg__tesselateBezier(ctx, last->x,last->y, cp1[0],cp1[1], cp2[0],cp2[1], p[0],p[1], 0, NVG_PT_CORNER);
+ }
+ i += 7;
+ break;
+ case NVG_CLOSE:
+ nvg__closePath(ctx);
+ i++;
+ break;
+ case NVG_WINDING:
+ nvg__pathWinding(ctx, (int)ctx->commands[i+1]);
+ i += 2;
+ break;
+ default:
+ i++;
+ }
+ }
+
+ cache->bounds[0] = cache->bounds[1] = 1e6f;
+ cache->bounds[2] = cache->bounds[3] = -1e6f;
+
+ // Calculate the direction and length of line segments.
+ for (j = 0; j < cache->npaths; j++) {
+ path = &cache->paths[j];
+ pts = &cache->points[path->first];
+
+ // If the first and last points are the same, remove the last, mark as closed path.
+ p0 = &pts[path->count-1];
+ p1 = &pts[0];
+ if (nvg__ptEquals(p0->x,p0->y, p1->x,p1->y, ctx->distTol)) {
+ path->count--;
+ p0 = &pts[path->count-1];
+ path->closed = 1;
+ }
+
+ // Enforce winding.
+ if (path->count > 2) {
+ area = nvg__polyArea(pts, path->count);
+ if (path->winding == NVG_CCW && area < 0.0f)
+ nvg__polyReverse(pts, path->count);
+ if (path->winding == NVG_CW && area > 0.0f)
+ nvg__polyReverse(pts, path->count);
+ }
+
+ for(i = 0; i < path->count; i++) {
+ // Calculate segment direction and length
+ p0->dx = p1->x - p0->x;
+ p0->dy = p1->y - p0->y;
+ p0->len = nvg__normalize(&p0->dx, &p0->dy);
+ // Update bounds
+ cache->bounds[0] = nvg__minf(cache->bounds[0], p0->x);
+ cache->bounds[1] = nvg__minf(cache->bounds[1], p0->y);
+ cache->bounds[2] = nvg__maxf(cache->bounds[2], p0->x);
+ cache->bounds[3] = nvg__maxf(cache->bounds[3], p0->y);
+ // Advance
+ p0 = p1++;
+ }
+ }
+}
+
+static int nvg__curveDivs(float r, float arc, float tol)
+{
+ float da = acosf(r / (r + tol)) * 2.0f;
+ return nvg__maxi(2, (int)ceilf(arc / da));
+}
+
+static void nvg__chooseBevel(int bevel, NVGpoint* p0, NVGpoint* p1, float w,
+ float* x0, float* y0, float* x1, float* y1)
+{
+ if (bevel) {
+ *x0 = p1->x + p0->dy * w;
+ *y0 = p1->y - p0->dx * w;
+ *x1 = p1->x + p1->dy * w;
+ *y1 = p1->y - p1->dx * w;
+ } else {
+ *x0 = p1->x + p1->dmx * w;
+ *y0 = p1->y + p1->dmy * w;
+ *x1 = p1->x + p1->dmx * w;
+ *y1 = p1->y + p1->dmy * w;
+ }
+}
+
+static NVGvertex* nvg__roundJoin(NVGvertex* dst, NVGpoint* p0, NVGpoint* p1,
+ float lw, float rw, float lu, float ru, int ncap,
+ float fringe)
+{
+ int i, n;
+ float dlx0 = p0->dy;
+ float dly0 = -p0->dx;
+ float dlx1 = p1->dy;
+ float dly1 = -p1->dx;
+ NVG_NOTUSED(fringe);
+
+ if (p1->flags & NVG_PT_LEFT) {
+ float lx0,ly0,lx1,ly1,a0,a1;
+ nvg__chooseBevel(p1->flags & NVG_PR_INNERBEVEL, p0, p1, lw, &lx0,&ly0, &lx1,&ly1);
+ a0 = atan2f(-dly0, -dlx0);
+ a1 = atan2f(-dly1, -dlx1);
+ if (a1 > a0) a1 -= NVG_PI*2;
+
+ nvg__vset(dst, lx0, ly0, lu,1); dst++;
+ nvg__vset(dst, p1->x - dlx0*rw, p1->y - dly0*rw, ru,1); dst++;
+
+ n = nvg__clampi((int)ceilf(((a0 - a1) / NVG_PI) * ncap), 2, ncap);
+ for (i = 0; i < n; i++) {
+ float u = i/(float)(n-1);
+ float a = a0 + u*(a1-a0);
+ float rx = p1->x + cosf(a) * rw;
+ float ry = p1->y + sinf(a) * rw;
+ nvg__vset(dst, p1->x, p1->y, 0.5f,1); dst++;
+ nvg__vset(dst, rx, ry, ru,1); dst++;
+ }
+
+ nvg__vset(dst, lx1, ly1, lu,1); dst++;
+ nvg__vset(dst, p1->x - dlx1*rw, p1->y - dly1*rw, ru,1); dst++;
+
+ } else {
+ float rx0,ry0,rx1,ry1,a0,a1;
+ nvg__chooseBevel(p1->flags & NVG_PR_INNERBEVEL, p0, p1, -rw, &rx0,&ry0, &rx1,&ry1);
+ a0 = atan2f(dly0, dlx0);
+ a1 = atan2f(dly1, dlx1);
+ if (a1 < a0) a1 += NVG_PI*2;
+
+ nvg__vset(dst, p1->x + dlx0*rw, p1->y + dly0*rw, lu,1); dst++;
+ nvg__vset(dst, rx0, ry0, ru,1); dst++;
+
+ n = nvg__clampi((int)ceilf(((a1 - a0) / NVG_PI) * ncap), 2, ncap);
+ for (i = 0; i < n; i++) {
+ float u = i/(float)(n-1);
+ float a = a0 + u*(a1-a0);
+ float lx = p1->x + cosf(a) * lw;
+ float ly = p1->y + sinf(a) * lw;
+ nvg__vset(dst, lx, ly, lu,1); dst++;
+ nvg__vset(dst, p1->x, p1->y, 0.5f,1); dst++;
+ }
+
+ nvg__vset(dst, p1->x + dlx1*rw, p1->y + dly1*rw, lu,1); dst++;
+ nvg__vset(dst, rx1, ry1, ru,1); dst++;
+
+ }
+ return dst;
+}
+
+static NVGvertex* nvg__bevelJoin(NVGvertex* dst, NVGpoint* p0, NVGpoint* p1,
+ float lw, float rw, float lu, float ru, float fringe)
+{
+ float rx0,ry0,rx1,ry1;
+ float lx0,ly0,lx1,ly1;
+ float dlx0 = p0->dy;
+ float dly0 = -p0->dx;
+ float dlx1 = p1->dy;
+ float dly1 = -p1->dx;
+ NVG_NOTUSED(fringe);
+
+ if (p1->flags & NVG_PT_LEFT) {
+ nvg__chooseBevel(p1->flags & NVG_PR_INNERBEVEL, p0, p1, lw, &lx0,&ly0, &lx1,&ly1);
+
+ nvg__vset(dst, lx0, ly0, lu,1); dst++;
+ nvg__vset(dst, p1->x - dlx0*rw, p1->y - dly0*rw, ru,1); dst++;
+
+ if (p1->flags & NVG_PT_BEVEL) {
+ nvg__vset(dst, lx0, ly0, lu,1); dst++;
+ nvg__vset(dst, p1->x - dlx0*rw, p1->y - dly0*rw, ru,1); dst++;
+
+ nvg__vset(dst, lx1, ly1, lu,1); dst++;
+ nvg__vset(dst, p1->x - dlx1*rw, p1->y - dly1*rw, ru,1); dst++;
+ } else {
+ rx0 = p1->x - p1->dmx * rw;
+ ry0 = p1->y - p1->dmy * rw;
+
+ nvg__vset(dst, p1->x, p1->y, 0.5f,1); dst++;
+ nvg__vset(dst, p1->x - dlx0*rw, p1->y - dly0*rw, ru,1); dst++;
+
+ nvg__vset(dst, rx0, ry0, ru,1); dst++;
+ nvg__vset(dst, rx0, ry0, ru,1); dst++;
+
+ nvg__vset(dst, p1->x, p1->y, 0.5f,1); dst++;
+ nvg__vset(dst, p1->x - dlx1*rw, p1->y - dly1*rw, ru,1); dst++;
+ }
+
+ nvg__vset(dst, lx1, ly1, lu,1); dst++;
+ nvg__vset(dst, p1->x - dlx1*rw, p1->y - dly1*rw, ru,1); dst++;
+
+ } else {
+ nvg__chooseBevel(p1->flags & NVG_PR_INNERBEVEL, p0, p1, -rw, &rx0,&ry0, &rx1,&ry1);
+
+ nvg__vset(dst, p1->x + dlx0*lw, p1->y + dly0*lw, lu,1); dst++;
+ nvg__vset(dst, rx0, ry0, ru,1); dst++;
+
+ if (p1->flags & NVG_PT_BEVEL) {
+ nvg__vset(dst, p1->x + dlx0*lw, p1->y + dly0*lw, lu,1); dst++;
+ nvg__vset(dst, rx0, ry0, ru,1); dst++;
+
+ nvg__vset(dst, p1->x + dlx1*lw, p1->y + dly1*lw, lu,1); dst++;
+ nvg__vset(dst, rx1, ry1, ru,1); dst++;
+ } else {
+ lx0 = p1->x + p1->dmx * lw;
+ ly0 = p1->y + p1->dmy * lw;
+
+ nvg__vset(dst, p1->x + dlx0*lw, p1->y + dly0*lw, lu,1); dst++;
+ nvg__vset(dst, p1->x, p1->y, 0.5f,1); dst++;
+
+ nvg__vset(dst, lx0, ly0, lu,1); dst++;
+ nvg__vset(dst, lx0, ly0, lu,1); dst++;
+
+ nvg__vset(dst, p1->x + dlx1*lw, p1->y + dly1*lw, lu,1); dst++;
+ nvg__vset(dst, p1->x, p1->y, 0.5f,1); dst++;
+ }
+
+ nvg__vset(dst, p1->x + dlx1*lw, p1->y + dly1*lw, lu,1); dst++;
+ nvg__vset(dst, rx1, ry1, ru,1); dst++;
+ }
+
+ return dst;
+}
+
+static NVGvertex* nvg__buttCapStart(NVGvertex* dst, NVGpoint* p,
+ float dx, float dy, float w, float d,
+ float aa, float u0, float u1)
+{
+ float px = p->x - dx*d;
+ float py = p->y - dy*d;
+ float dlx = dy;
+ float dly = -dx;
+ nvg__vset(dst, px + dlx*w - dx*aa, py + dly*w - dy*aa, u0,0); dst++;
+ nvg__vset(dst, px - dlx*w - dx*aa, py - dly*w - dy*aa, u1,0); dst++;
+ nvg__vset(dst, px + dlx*w, py + dly*w, u0,1); dst++;
+ nvg__vset(dst, px - dlx*w, py - dly*w, u1,1); dst++;
+ return dst;
+}
+
+static NVGvertex* nvg__buttCapEnd(NVGvertex* dst, NVGpoint* p,
+ float dx, float dy, float w, float d,
+ float aa, float u0, float u1)
+{
+ float px = p->x + dx*d;
+ float py = p->y + dy*d;
+ float dlx = dy;
+ float dly = -dx;
+ nvg__vset(dst, px + dlx*w, py + dly*w, u0,1); dst++;
+ nvg__vset(dst, px - dlx*w, py - dly*w, u1,1); dst++;
+ nvg__vset(dst, px + dlx*w + dx*aa, py + dly*w + dy*aa, u0,0); dst++;
+ nvg__vset(dst, px - dlx*w + dx*aa, py - dly*w + dy*aa, u1,0); dst++;
+ return dst;
+}
+
+
+static NVGvertex* nvg__roundCapStart(NVGvertex* dst, NVGpoint* p,
+ float dx, float dy, float w, int ncap,
+ float aa, float u0, float u1)
+{
+ int i;
+ float px = p->x;
+ float py = p->y;
+ float dlx = dy;
+ float dly = -dx;
+ NVG_NOTUSED(aa);
+ for (i = 0; i < ncap; i++) {
+ float a = i/(float)(ncap-1)*NVG_PI;
+ float ax = cosf(a) * w, ay = sinf(a) * w;
+ nvg__vset(dst, px - dlx*ax - dx*ay, py - dly*ax - dy*ay, u0,1); dst++;
+ nvg__vset(dst, px, py, 0.5f,1); dst++;
+ }
+ nvg__vset(dst, px + dlx*w, py + dly*w, u0,1); dst++;
+ nvg__vset(dst, px - dlx*w, py - dly*w, u1,1); dst++;
+ return dst;
+}
+
+static NVGvertex* nvg__roundCapEnd(NVGvertex* dst, NVGpoint* p,
+ float dx, float dy, float w, int ncap,
+ float aa, float u0, float u1)
+{
+ int i;
+ float px = p->x;
+ float py = p->y;
+ float dlx = dy;
+ float dly = -dx;
+ NVG_NOTUSED(aa);
+ nvg__vset(dst, px + dlx*w, py + dly*w, u0,1); dst++;
+ nvg__vset(dst, px - dlx*w, py - dly*w, u1,1); dst++;
+ for (i = 0; i < ncap; i++) {
+ float a = i/(float)(ncap-1)*NVG_PI;
+ float ax = cosf(a) * w, ay = sinf(a) * w;
+ nvg__vset(dst, px, py, 0.5f,1); dst++;
+ nvg__vset(dst, px - dlx*ax + dx*ay, py - dly*ax + dy*ay, u0,1); dst++;
+ }
+ return dst;
+}
+
+
+static void nvg__calculateJoins(NVGcontext* ctx, float w, int lineJoin, float miterLimit)
+{
+ NVGpathCache* cache = ctx->cache;
+ int i, j;
+ float iw = 0.0f;
+
+ if (w > 0.0f) iw = 1.0f / w;
+
+ // Calculate which joins needs extra vertices to append, and gather vertex count.
+ for (i = 0; i < cache->npaths; i++) {
+ NVGpath* path = &cache->paths[i];
+ NVGpoint* pts = &cache->points[path->first];
+ NVGpoint* p0 = &pts[path->count-1];
+ NVGpoint* p1 = &pts[0];
+ int nleft = 0;
+
+ path->nbevel = 0;
+
+ for (j = 0; j < path->count; j++) {
+ float dlx0, dly0, dlx1, dly1, dmr2, cross, limit;
+ dlx0 = p0->dy;
+ dly0 = -p0->dx;
+ dlx1 = p1->dy;
+ dly1 = -p1->dx;
+ // Calculate extrusions
+ p1->dmx = (dlx0 + dlx1) * 0.5f;
+ p1->dmy = (dly0 + dly1) * 0.5f;
+ dmr2 = p1->dmx*p1->dmx + p1->dmy*p1->dmy;
+ if (dmr2 > 0.000001f) {
+ float scale = 1.0f / dmr2;
+ if (scale > 600.0f) {
+ scale = 600.0f;
+ }
+ p1->dmx *= scale;
+ p1->dmy *= scale;
+ }
+
+ // Clear flags, but keep the corner.
+ p1->flags = (p1->flags & NVG_PT_CORNER) ? NVG_PT_CORNER : 0;
+
+ // Keep track of left turns.
+ cross = p1->dx * p0->dy - p0->dx * p1->dy;
+ if (cross > 0.0f) {
+ nleft++;
+ p1->flags |= NVG_PT_LEFT;
+ }
+
+ // Calculate if we should use bevel or miter for inner join.
+ limit = nvg__maxf(1.01f, nvg__minf(p0->len, p1->len) * iw);
+ if ((dmr2 * limit*limit) < 1.0f)
+ p1->flags |= NVG_PR_INNERBEVEL;
+
+ // Check to see if the corner needs to be beveled.
+ if (p1->flags & NVG_PT_CORNER) {
+ if ((dmr2 * miterLimit*miterLimit) < 1.0f || lineJoin == NVG_BEVEL || lineJoin == NVG_ROUND) {
+ p1->flags |= NVG_PT_BEVEL;
+ }
+ }
+
+ if ((p1->flags & (NVG_PT_BEVEL | NVG_PR_INNERBEVEL)) != 0)
+ path->nbevel++;
+
+ p0 = p1++;
+ }
+
+ path->convex = (nleft == path->count) ? 1 : 0;
+ }
+}
+
+
+static int nvg__expandStroke(NVGcontext* ctx, float w, float fringe, int lineCap, int lineJoin, float miterLimit)
+{
+ NVGpathCache* cache = ctx->cache;
+ NVGvertex* verts;
+ NVGvertex* dst;
+ int cverts, i, j;
+ float aa = fringe;//ctx->fringeWidth;
+ float u0 = 0.0f, u1 = 1.0f;
+ int ncap = nvg__curveDivs(w, NVG_PI, ctx->tessTol); // Calculate divisions per half circle.
+
+ w += aa * 0.5f;
+
+ // Disable the gradient used for antialiasing when antialiasing is not used.
+ if (aa == 0.0f) {
+ u0 = 0.5f;
+ u1 = 0.5f;
+ }
+
+ nvg__calculateJoins(ctx, w, lineJoin, miterLimit);
+
+ // Calculate max vertex usage.
+ cverts = 0;
+ for (i = 0; i < cache->npaths; i++) {
+ NVGpath* path = &cache->paths[i];
+ int loop = (path->closed == 0) ? 0 : 1;
+ if (lineJoin == NVG_ROUND)
+ cverts += (path->count + path->nbevel*(ncap+2) + 1) * 2; // plus one for loop
+ else
+ cverts += (path->count + path->nbevel*5 + 1) * 2; // plus one for loop
+ if (loop == 0) {
+ // space for caps
+ if (lineCap == NVG_ROUND) {
+ cverts += (ncap*2 + 2)*2;
+ } else {
+ cverts += (3+3)*2;
+ }
+ }
+ }
+
+ verts = nvg__allocTempVerts(ctx, cverts);
+ if (verts == NULL) return 0;
+
+ for (i = 0; i < cache->npaths; i++) {
+ NVGpath* path = &cache->paths[i];
+ NVGpoint* pts = &cache->points[path->first];
+ NVGpoint* p0;
+ NVGpoint* p1;
+ int s, e, loop;
+ float dx, dy;
+
+ path->fill = 0;
+ path->nfill = 0;
+
+ // Calculate fringe or stroke
+ loop = (path->closed == 0) ? 0 : 1;
+ dst = verts;
+ path->stroke = dst;
+
+ if (loop) {
+ // Looping
+ p0 = &pts[path->count-1];
+ p1 = &pts[0];
+ s = 0;
+ e = path->count;
+ } else {
+ // Add cap
+ p0 = &pts[0];
+ p1 = &pts[1];
+ s = 1;
+ e = path->count-1;
+ }
+
+ if (loop == 0) {
+ // Add cap
+ dx = p1->x - p0->x;
+ dy = p1->y - p0->y;
+ nvg__normalize(&dx, &dy);
+ if (lineCap == NVG_BUTT)
+ dst = nvg__buttCapStart(dst, p0, dx, dy, w, -aa*0.5f, aa, u0, u1);
+ else if (lineCap == NVG_BUTT || lineCap == NVG_SQUARE)
+ dst = nvg__buttCapStart(dst, p0, dx, dy, w, w-aa, aa, u0, u1);
+ else if (lineCap == NVG_ROUND)
+ dst = nvg__roundCapStart(dst, p0, dx, dy, w, ncap, aa, u0, u1);
+ }
+
+ for (j = s; j < e; ++j) {
+ if ((p1->flags & (NVG_PT_BEVEL | NVG_PR_INNERBEVEL)) != 0) {
+ if (lineJoin == NVG_ROUND) {
+ dst = nvg__roundJoin(dst, p0, p1, w, w, u0, u1, ncap, aa);
+ } else {
+ dst = nvg__bevelJoin(dst, p0, p1, w, w, u0, u1, aa);
+ }
+ } else {
+ nvg__vset(dst, p1->x + (p1->dmx * w), p1->y + (p1->dmy * w), u0,1); dst++;
+ nvg__vset(dst, p1->x - (p1->dmx * w), p1->y - (p1->dmy * w), u1,1); dst++;
+ }
+ p0 = p1++;
+ }
+
+ if (loop) {
+ // Loop it
+ nvg__vset(dst, verts[0].x, verts[0].y, u0,1); dst++;
+ nvg__vset(dst, verts[1].x, verts[1].y, u1,1); dst++;
+ } else {
+ // Add cap
+ dx = p1->x - p0->x;
+ dy = p1->y - p0->y;
+ nvg__normalize(&dx, &dy);
+ if (lineCap == NVG_BUTT)
+ dst = nvg__buttCapEnd(dst, p1, dx, dy, w, -aa*0.5f, aa, u0, u1);
+ else if (lineCap == NVG_BUTT || lineCap == NVG_SQUARE)
+ dst = nvg__buttCapEnd(dst, p1, dx, dy, w, w-aa, aa, u0, u1);
+ else if (lineCap == NVG_ROUND)
+ dst = nvg__roundCapEnd(dst, p1, dx, dy, w, ncap, aa, u0, u1);
+ }
+
+ path->nstroke = (int)(dst - verts);
+
+ verts = dst;
+ }
+
+ return 1;
+}
+
+static int nvg__expandFill(NVGcontext* ctx, float w, int lineJoin, float miterLimit)
+{
+ NVGpathCache* cache = ctx->cache;
+ NVGvertex* verts;
+ NVGvertex* dst;
+ int cverts, convex, i, j;
+ float aa = ctx->fringeWidth;
+ int fringe = w > 0.0f;
+
+ nvg__calculateJoins(ctx, w, lineJoin, miterLimit);
+
+ // Calculate max vertex usage.
+ cverts = 0;
+ for (i = 0; i < cache->npaths; i++) {
+ NVGpath* path = &cache->paths[i];
+ cverts += path->count + path->nbevel + 1;
+ if (fringe)
+ cverts += (path->count + path->nbevel*5 + 1) * 2; // plus one for loop
+ }
+
+ verts = nvg__allocTempVerts(ctx, cverts);
+ if (verts == NULL) return 0;
+
+ convex = cache->npaths == 1 && cache->paths[0].convex;
+
+ for (i = 0; i < cache->npaths; i++) {
+ NVGpath* path = &cache->paths[i];
+ NVGpoint* pts = &cache->points[path->first];
+ NVGpoint* p0;
+ NVGpoint* p1;
+ float rw, lw, woff;
+ float ru, lu;
+
+ // Calculate shape vertices.
+ woff = 0.5f*aa;
+ dst = verts;
+ path->fill = dst;
+
+ if (fringe) {
+ // Looping
+ p0 = &pts[path->count-1];
+ p1 = &pts[0];
+ for (j = 0; j < path->count; ++j) {
+ if (p1->flags & NVG_PT_BEVEL) {
+ float dlx0 = p0->dy;
+ float dly0 = -p0->dx;
+ float dlx1 = p1->dy;
+ float dly1 = -p1->dx;
+ if (p1->flags & NVG_PT_LEFT) {
+ float lx = p1->x + p1->dmx * woff;
+ float ly = p1->y + p1->dmy * woff;
+ nvg__vset(dst, lx, ly, 0.5f,1); dst++;
+ } else {
+ float lx0 = p1->x + dlx0 * woff;
+ float ly0 = p1->y + dly0 * woff;
+ float lx1 = p1->x + dlx1 * woff;
+ float ly1 = p1->y + dly1 * woff;
+ nvg__vset(dst, lx0, ly0, 0.5f,1); dst++;
+ nvg__vset(dst, lx1, ly1, 0.5f,1); dst++;
+ }
+ } else {
+ nvg__vset(dst, p1->x + (p1->dmx * woff), p1->y + (p1->dmy * woff), 0.5f,1); dst++;
+ }
+ p0 = p1++;
+ }
+ } else {
+ for (j = 0; j < path->count; ++j) {
+ nvg__vset(dst, pts[j].x, pts[j].y, 0.5f,1);
+ dst++;
+ }
+ }
+
+ path->nfill = (int)(dst - verts);
+ verts = dst;
+
+ // Calculate fringe
+ if (fringe) {
+ lw = w + woff;
+ rw = w - woff;
+ lu = 0;
+ ru = 1;
+ dst = verts;
+ path->stroke = dst;
+
+ // Create only half a fringe for convex shapes so that
+ // the shape can be rendered without stenciling.
+ if (convex) {
+ lw = woff; // This should generate the same vertex as fill inset above.
+ lu = 0.5f; // Set outline fade at middle.
+ }
+
+ // Looping
+ p0 = &pts[path->count-1];
+ p1 = &pts[0];
+
+ for (j = 0; j < path->count; ++j) {
+ if ((p1->flags & (NVG_PT_BEVEL | NVG_PR_INNERBEVEL)) != 0) {
+ dst = nvg__bevelJoin(dst, p0, p1, lw, rw, lu, ru, ctx->fringeWidth);
+ } else {
+ nvg__vset(dst, p1->x + (p1->dmx * lw), p1->y + (p1->dmy * lw), lu,1); dst++;
+ nvg__vset(dst, p1->x - (p1->dmx * rw), p1->y - (p1->dmy * rw), ru,1); dst++;
+ }
+ p0 = p1++;
+ }
+
+ // Loop it
+ nvg__vset(dst, verts[0].x, verts[0].y, lu,1); dst++;
+ nvg__vset(dst, verts[1].x, verts[1].y, ru,1); dst++;
+
+ path->nstroke = (int)(dst - verts);
+ verts = dst;
+ } else {
+ path->stroke = NULL;
+ path->nstroke = 0;
+ }
+ }
+
+ return 1;
+}
+
+
+// Draw
+void nvgBeginPath(NVGcontext* ctx)
+{
+ ctx->ncommands = 0;
+ nvg__clearPathCache(ctx);
+}
+
+void nvgMoveTo(NVGcontext* ctx, float x, float y)
+{
+ float vals[] = { NVG_MOVETO, x, y };
+ nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
+}
+
+void nvgLineTo(NVGcontext* ctx, float x, float y)
+{
+ float vals[] = { NVG_LINETO, x, y };
+ nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
+}
+
+void nvgBezierTo(NVGcontext* ctx, float c1x, float c1y, float c2x, float c2y, float x, float y)
+{
+ float vals[] = { NVG_BEZIERTO, c1x, c1y, c2x, c2y, x, y };
+ nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
+}
+
+void nvgQuadTo(NVGcontext* ctx, float cx, float cy, float x, float y)
+{
+ float x0 = ctx->commandx;
+ float y0 = ctx->commandy;
+ float vals[] = { NVG_BEZIERTO,
+ x0 + 2.0f/3.0f*(cx - x0), y0 + 2.0f/3.0f*(cy - y0),
+ x + 2.0f/3.0f*(cx - x), y + 2.0f/3.0f*(cy - y),
+ x, y };
+ nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
+}
+
+void nvgArcTo(NVGcontext* ctx, float x1, float y1, float x2, float y2, float radius)
+{
+ float x0 = ctx->commandx;
+ float y0 = ctx->commandy;
+ float dx0,dy0, dx1,dy1, a, d, cx,cy, a0,a1;
+ int dir;
+
+ if (ctx->ncommands == 0) {
+ return;
+ }
+
+ // Handle degenerate cases.
+ if (nvg__ptEquals(x0,y0, x1,y1, ctx->distTol) ||
+ nvg__ptEquals(x1,y1, x2,y2, ctx->distTol) ||
+ nvg__distPtSeg(x1,y1, x0,y0, x2,y2) < ctx->distTol*ctx->distTol ||
+ radius < ctx->distTol) {
+ nvgLineTo(ctx, x1,y1);
+ return;
+ }
+
+ // Calculate tangential circle to lines (x0,y0)-(x1,y1) and (x1,y1)-(x2,y2).
+ dx0 = x0-x1;
+ dy0 = y0-y1;
+ dx1 = x2-x1;
+ dy1 = y2-y1;
+ nvg__normalize(&dx0,&dy0);
+ nvg__normalize(&dx1,&dy1);
+ a = nvg__acosf(dx0*dx1 + dy0*dy1);
+ d = radius / nvg__tanf(a/2.0f);
+
+// printf("a=%f° d=%f\n", a/NVG_PI*180.0f, d);
+
+ if (d > 10000.0f) {
+ nvgLineTo(ctx, x1,y1);
+ return;
+ }
+
+ if (nvg__cross(dx0,dy0, dx1,dy1) > 0.0f) {
+ cx = x1 + dx0*d + dy0*radius;
+ cy = y1 + dy0*d + -dx0*radius;
+ a0 = nvg__atan2f(dx0, -dy0);
+ a1 = nvg__atan2f(-dx1, dy1);
+ dir = NVG_CW;
+// printf("CW c=(%f, %f) a0=%f° a1=%f°\n", cx, cy, a0/NVG_PI*180.0f, a1/NVG_PI*180.0f);
+ } else {
+ cx = x1 + dx0*d + -dy0*radius;
+ cy = y1 + dy0*d + dx0*radius;
+ a0 = nvg__atan2f(-dx0, dy0);
+ a1 = nvg__atan2f(dx1, -dy1);
+ dir = NVG_CCW;
+// printf("CCW c=(%f, %f) a0=%f° a1=%f°\n", cx, cy, a0/NVG_PI*180.0f, a1/NVG_PI*180.0f);
+ }
+
+ nvgArc(ctx, cx, cy, radius, a0, a1, dir);
+}
+
+void nvgClosePath(NVGcontext* ctx)
+{
+ float vals[] = { NVG_CLOSE };
+ nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
+}
+
+void nvgPathWinding(NVGcontext* ctx, int dir)
+{
+ float vals[] = { NVG_WINDING, (float)dir };
+ nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
+}
+
+void nvgBarc(NVGcontext* ctx, float cx, float cy, float r, float a0, float a1, int dir, int join)
+{
+ float a = 0, da = 0, hda = 0, kappa = 0;
+ float dx = 0, dy = 0, x = 0, y = 0, tanx = 0, tany = 0;
+ float px = 0, py = 0, ptanx = 0, ptany = 0;
+ float vals[3 + 5*7 + 100];
+ int i, ndivs, nvals;
+ int move = join && ctx->ncommands > 0 ? NVG_LINETO : NVG_MOVETO;
+
+ // Clamp angles
+ da = a1 - a0;
+ if (dir == NVG_CW) {
+ if (nvg__absf(da) >= NVG_PI*2) {
+ da = NVG_PI*2;
+ } else {
+ while (da < 0.0f) da += NVG_PI*2;
+ }
+ } else {
+ if (nvg__absf(da) >= NVG_PI*2) {
+ da = -NVG_PI*2;
+ } else {
+ while (da > 0.0f) da -= NVG_PI*2;
+ }
+ }
+
+ // Split arc into max 90 degree segments.
+ ndivs = nvg__maxi(1, nvg__mini((int)(nvg__absf(da) / (NVG_PI*0.5f) + 0.5f), 5));
+ hda = (da / (float)ndivs) / 2.0f;
+ kappa = nvg__absf(4.0f / 3.0f * (1.0f - nvg__cosf(hda)) / nvg__sinf(hda));
+
+ if (dir == NVG_CCW)
+ kappa = -kappa;
+
+ nvals = 0;
+ for (i = 0; i <= ndivs; i++) {
+ a = a0 + da * (i/(float)ndivs);
+ dx = nvg__cosf(a);
+ dy = nvg__sinf(a);
+ x = cx + dx*r;
+ y = cy + dy*r;
+ tanx = -dy*r*kappa;
+ tany = dx*r*kappa;
+
+ if (i == 0) {
+ vals[nvals++] = (float)move;
+ vals[nvals++] = x;
+ vals[nvals++] = y;
+ } else {
+ vals[nvals++] = NVG_BEZIERTO;
+ vals[nvals++] = px+ptanx;
+ vals[nvals++] = py+ptany;
+ vals[nvals++] = x-tanx;
+ vals[nvals++] = y-tany;
+ vals[nvals++] = x;
+ vals[nvals++] = y;
+ }
+ px = x;
+ py = y;
+ ptanx = tanx;
+ ptany = tany;
+ }
+
+ nvg__appendCommands(ctx, vals, nvals);
+}
+
+void nvgArc(NVGcontext* ctx, float cx, float cy, float r, float a0, float a1, int dir)
+{
+ nvgBarc(ctx, cx, cy, r, a0, a1, dir, 1);
+}
+
+void nvgRect(NVGcontext* ctx, float x, float y, float w, float h)
+{
+ float vals[] = {
+ NVG_MOVETO, x,y,
+ NVG_LINETO, x,y+h,
+ NVG_LINETO, x+w,y+h,
+ NVG_LINETO, x+w,y,
+ NVG_CLOSE
+ };
+ nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
+}
+
+void nvgRoundedRect(NVGcontext* ctx, float x, float y, float w, float h, float r)
+{
+ nvgRoundedRectVarying(ctx, x, y, w, h, r, r, r, r);
+}
+
+void nvgRoundedRectVarying(NVGcontext* ctx, float x, float y, float w, float h, float radTopLeft, float radTopRight, float radBottomRight, float radBottomLeft)
+{
+ if(radTopLeft < 0.1f && radTopRight < 0.1f && radBottomRight < 0.1f && radBottomLeft < 0.1f) {
+ nvgRect(ctx, x, y, w, h);
+ return;
+ } else {
+ float halfw = nvg__absf(w)*0.5f;
+ float halfh = nvg__absf(h)*0.5f;
+ float rxBL = nvg__minf(radBottomLeft, halfw) * nvg__signf(w), ryBL = nvg__minf(radBottomLeft, halfh) * nvg__signf(h);
+ float rxBR = nvg__minf(radBottomRight, halfw) * nvg__signf(w), ryBR = nvg__minf(radBottomRight, halfh) * nvg__signf(h);
+ float rxTR = nvg__minf(radTopRight, halfw) * nvg__signf(w), ryTR = nvg__minf(radTopRight, halfh) * nvg__signf(h);
+ float rxTL = nvg__minf(radTopLeft, halfw) * nvg__signf(w), ryTL = nvg__minf(radTopLeft, halfh) * nvg__signf(h);
+ float vals[] = {
+ NVG_MOVETO, x, y + ryTL,
+ NVG_LINETO, x, y + h - ryBL,
+ NVG_BEZIERTO, x, y + h - ryBL*(1 - NVG_KAPPA90), x + rxBL*(1 - NVG_KAPPA90), y + h, x + rxBL, y + h,
+ NVG_LINETO, x + w - rxBR, y + h,
+ NVG_BEZIERTO, x + w - rxBR*(1 - NVG_KAPPA90), y + h, x + w, y + h - ryBR*(1 - NVG_KAPPA90), x + w, y + h - ryBR,
+ NVG_LINETO, x + w, y + ryTR,
+ NVG_BEZIERTO, x + w, y + ryTR*(1 - NVG_KAPPA90), x + w - rxTR*(1 - NVG_KAPPA90), y, x + w - rxTR, y,
+ NVG_LINETO, x + rxTL, y,
+ NVG_BEZIERTO, x + rxTL*(1 - NVG_KAPPA90), y, x, y + ryTL*(1 - NVG_KAPPA90), x, y + ryTL,
+ NVG_CLOSE
+ };
+ nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
+ }
+}
+
+void nvgEllipse(NVGcontext* ctx, float cx, float cy, float rx, float ry)
+{
+ float vals[] = {
+ NVG_MOVETO, cx-rx, cy,
+ NVG_BEZIERTO, cx-rx, cy+ry*NVG_KAPPA90, cx-rx*NVG_KAPPA90, cy+ry, cx, cy+ry,
+ NVG_BEZIERTO, cx+rx*NVG_KAPPA90, cy+ry, cx+rx, cy+ry*NVG_KAPPA90, cx+rx, cy,
+ NVG_BEZIERTO, cx+rx, cy-ry*NVG_KAPPA90, cx+rx*NVG_KAPPA90, cy-ry, cx, cy-ry,
+ NVG_BEZIERTO, cx-rx*NVG_KAPPA90, cy-ry, cx-rx, cy-ry*NVG_KAPPA90, cx-rx, cy,
+ NVG_CLOSE
+ };
+ nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
+}
+
+void nvgCircle(NVGcontext* ctx, float cx, float cy, float r)
+{
+ nvgEllipse(ctx, cx,cy, r,r);
+}
+
+void nvgDebugDumpPathCache(NVGcontext* ctx)
+{
+ const NVGpath* path;
+ int i, j;
+
+ printf("Dumping %d cached paths\n", ctx->cache->npaths);
+ for (i = 0; i < ctx->cache->npaths; i++) {
+ path = &ctx->cache->paths[i];
+ printf(" - Path %d\n", i);
+ if (path->nfill) {
+ printf(" - fill: %d\n", path->nfill);
+ for (j = 0; j < path->nfill; j++)
+ printf("%f\t%f\n", path->fill[j].x, path->fill[j].y);
+ }
+ if (path->nstroke) {
+ printf(" - stroke: %d\n", path->nstroke);
+ for (j = 0; j < path->nstroke; j++)
+ printf("%f\t%f\n", path->stroke[j].x, path->stroke[j].y);
+ }
+ }
+}
+
+void nvgFill(NVGcontext* ctx)
+{
+ NVGstate* state = nvg__getState(ctx);
+ const NVGpath* path;
+ NVGpaint fillPaint = state->fill;
+ int i;
+
+ nvg__flattenPaths(ctx);
+ if (ctx->params.edgeAntiAlias && state->shapeAntiAlias)
+ nvg__expandFill(ctx, ctx->fringeWidth, NVG_MITER, 2.4f);
+ else
+ nvg__expandFill(ctx, 0.0f, NVG_MITER, 2.4f);
+
+ // Apply global alpha
+ fillPaint.innerColor.a *= state->alpha;
+ fillPaint.outerColor.a *= state->alpha;
+
+ ctx->params.renderFill(ctx->params.userPtr, &fillPaint, state->compositeOperation, &state->scissor, ctx->fringeWidth,
+ ctx->cache->bounds, ctx->cache->paths, ctx->cache->npaths);
+
+ // Count triangles
+ for (i = 0; i < ctx->cache->npaths; i++) {
+ path = &ctx->cache->paths[i];
+ ctx->fillTriCount += path->nfill-2;
+ ctx->fillTriCount += path->nstroke-2;
+ ctx->drawCallCount += 2;
+ }
+}
+
+void nvgStroke(NVGcontext* ctx)
+{
+ NVGstate* state = nvg__getState(ctx);
+ float scale = nvg__getAverageScale(state->xform);
+ float strokeWidth = nvg__clampf(state->strokeWidth * scale, 0.0f, 200.0f);
+ NVGpaint strokePaint = state->stroke;
+ const NVGpath* path;
+ int i;
+
+
+ if (strokeWidth < ctx->fringeWidth) {
+ // If the stroke width is less than pixel size, use alpha to emulate coverage.
+ // Since coverage is area, scale by alpha*alpha.
+ float alpha = nvg__clampf(strokeWidth / ctx->fringeWidth, 0.0f, 1.0f);
+ strokePaint.innerColor.a *= alpha*alpha;
+ strokePaint.outerColor.a *= alpha*alpha;
+ strokeWidth = ctx->fringeWidth;
+ }
+
+ // Apply global alpha
+ strokePaint.innerColor.a *= state->alpha;
+ strokePaint.outerColor.a *= state->alpha;
+
+ nvg__flattenPaths(ctx);
+
+ if (ctx->params.edgeAntiAlias && state->shapeAntiAlias)
+ nvg__expandStroke(ctx, strokeWidth*0.5f, ctx->fringeWidth, state->lineCap, state->lineJoin, state->miterLimit);
+ else
+ nvg__expandStroke(ctx, strokeWidth*0.5f, 0.0f, state->lineCap, state->lineJoin, state->miterLimit);
+
+ ctx->params.renderStroke(ctx->params.userPtr, &strokePaint, state->compositeOperation, &state->scissor, ctx->fringeWidth,
+ strokeWidth, ctx->cache->paths, ctx->cache->npaths);
+
+ // Count triangles
+ for (i = 0; i < ctx->cache->npaths; i++) {
+ path = &ctx->cache->paths[i];
+ ctx->strokeTriCount += path->nstroke-2;
+ ctx->drawCallCount++;
+ }
+}
+
+// Add fonts
+int nvgCreateFont(NVGcontext* ctx, const char* name, const char* filename)
+{
+ return fonsAddFont(ctx->fs, name, filename, 0);
+}
+
+int nvgCreateFontAtIndex(NVGcontext* ctx, const char* name, const char* filename, const int fontIndex)
+{
+ return fonsAddFont(ctx->fs, name, filename, fontIndex);
+}
+
+int nvgCreateFontMem(NVGcontext* ctx, const char* name, unsigned char* data, int ndata, int freeData)
+{
+ return fonsAddFontMem(ctx->fs, name, data, ndata, freeData, 0);
+}
+
+int nvgCreateFontMemAtIndex(NVGcontext* ctx, const char* name, unsigned char* data, int ndata, int freeData, const int fontIndex)
+{
+ return fonsAddFontMem(ctx->fs, name, data, ndata, freeData, fontIndex);
+}
+
+int nvgFindFont(NVGcontext* ctx, const char* name)
+{
+ if (name == NULL) return -1;
+ return fonsGetFontByName(ctx->fs, name);
+}
+
+
+int nvgAddFallbackFontId(NVGcontext* ctx, int baseFont, int fallbackFont)
+{
+ if(baseFont == -1 || fallbackFont == -1) return 0;
+ return fonsAddFallbackFont(ctx->fs, baseFont, fallbackFont);
+}
+
+int nvgAddFallbackFont(NVGcontext* ctx, const char* baseFont, const char* fallbackFont)
+{
+ return nvgAddFallbackFontId(ctx, nvgFindFont(ctx, baseFont), nvgFindFont(ctx, fallbackFont));
+}
+
+void nvgResetFallbackFontsId(NVGcontext* ctx, int baseFont)
+{
+ fonsResetFallbackFont(ctx->fs, baseFont);
+}
+
+void nvgResetFallbackFonts(NVGcontext* ctx, const char* baseFont)
+{
+ nvgResetFallbackFontsId(ctx, nvgFindFont(ctx, baseFont));
+}
+
+// State setting
+void nvgFontSize(NVGcontext* ctx, float size)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->fontSize = size;
+}
+
+void nvgFontBlur(NVGcontext* ctx, float blur)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->fontBlur = blur;
+}
+
+void nvgTextLetterSpacing(NVGcontext* ctx, float spacing)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->letterSpacing = spacing;
+}
+
+void nvgTextLineHeight(NVGcontext* ctx, float lineHeight)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->lineHeight = lineHeight;
+}
+
+void nvgTextAlign(NVGcontext* ctx, int align)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->textAlign = align;
+}
+
+void nvgFontFaceId(NVGcontext* ctx, int font)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->fontId = font;
+}
+
+void nvgFontFace(NVGcontext* ctx, const char* font)
+{
+ NVGstate* state = nvg__getState(ctx);
+ state->fontId = fonsGetFontByName(ctx->fs, font);
+}
+
+static float nvg__quantize(float a, float d)
+{
+ return ((int)(a / d + 0.5f)) * d;
+}
+
+static float nvg__getFontScale(NVGstate* state)
+{
+ return nvg__minf(nvg__quantize(nvg__getAverageScale(state->xform), 0.01f), 4.0f);
+}
+
+static void nvg__flushTextTexture(NVGcontext* ctx)
+{
+ int dirty[4];
+
+ if (fonsValidateTexture(ctx->fs, dirty)) {
+ int fontImage = ctx->fontImages[ctx->fontImageIdx];
+ // Update texture
+ if (fontImage != 0) {
+ int iw, ih;
+ const unsigned char* data = fonsGetTextureData(ctx->fs, &iw, &ih);
+ int x = dirty[0];
+ int y = dirty[1];
+ int w = dirty[2] - dirty[0];
+ int h = dirty[3] - dirty[1];
+ ctx->params.renderUpdateTexture(ctx->params.userPtr, fontImage, x,y, w,h, data);
+ }
+ }
+}
+
+static int nvg__allocTextAtlas(NVGcontext* ctx)
+{
+ int iw, ih;
+ nvg__flushTextTexture(ctx);
+ if (ctx->fontImageIdx >= NVG_MAX_FONTIMAGES-1)
+ return 0;
+ // if next fontImage already have a texture
+ if (ctx->fontImages[ctx->fontImageIdx+1] != 0)
+ nvgImageSize(ctx, ctx->fontImages[ctx->fontImageIdx+1], &iw, &ih);
+ else { // calculate the new font image size and create it.
+ nvgImageSize(ctx, ctx->fontImages[ctx->fontImageIdx], &iw, &ih);
+ if (iw > ih)
+ ih *= 2;
+ else
+ iw *= 2;
+ if (iw > NVG_MAX_FONTIMAGE_SIZE || ih > NVG_MAX_FONTIMAGE_SIZE)
+ iw = ih = NVG_MAX_FONTIMAGE_SIZE;
+ ctx->fontImages[ctx->fontImageIdx+1] = ctx->params.renderCreateTexture(ctx->params.userPtr, NVG_TEXTURE_ALPHA, iw, ih, 0, NULL);
+ }
+ ++ctx->fontImageIdx;
+ fonsResetAtlas(ctx->fs, iw, ih);
+ return 1;
+}
+
+static void nvg__renderText(NVGcontext* ctx, NVGvertex* verts, int nverts)
+{
+ NVGstate* state = nvg__getState(ctx);
+ NVGpaint paint = state->fill;
+
+ // Render triangles.
+ paint.image = ctx->fontImages[ctx->fontImageIdx];
+
+ // Apply global alpha
+ paint.innerColor.a *= state->alpha;
+ paint.outerColor.a *= state->alpha;
+
+ ctx->params.renderTriangles(ctx->params.userPtr, &paint, state->compositeOperation, &state->scissor, verts, nverts, ctx->fringeWidth);
+
+ ctx->drawCallCount++;
+ ctx->textTriCount += nverts/3;
+}
+
+static int nvg__isTransformFlipped(const float *xform)
+{
+ float det = xform[0] * xform[3] - xform[2] * xform[1];
+ return( det < 0);
+}
+
+float nvgText(NVGcontext* ctx, float x, float y, const char* string, const char* end)
+{
+ NVGstate* state = nvg__getState(ctx);
+ FONStextIter iter, prevIter;
+ FONSquad q;
+ NVGvertex* verts;
+ float scale = nvg__getFontScale(state) * ctx->devicePxRatio;
+ float invscale = 1.0f / scale;
+ int cverts = 0;
+ int nverts = 0;
+ int isFlipped = nvg__isTransformFlipped(state->xform);
+
+ if (end == NULL)
+ end = string + strlen(string);
+
+ if (state->fontId == FONS_INVALID) return x;
+
+ fonsSetSize(ctx->fs, state->fontSize*scale);
+ fonsSetSpacing(ctx->fs, state->letterSpacing*scale);
+ fonsSetBlur(ctx->fs, state->fontBlur*scale);
+ fonsSetAlign(ctx->fs, state->textAlign);
+ fonsSetFont(ctx->fs, state->fontId);
+
+ cverts = nvg__maxi(2, (int)(end - string)) * 6; // conservative estimate.
+ verts = nvg__allocTempVerts(ctx, cverts);
+ if (verts == NULL) return x;
+
+ fonsTextIterInit(ctx->fs, &iter, x*scale, y*scale, string, end, FONS_GLYPH_BITMAP_REQUIRED);
+ prevIter = iter;
+ while (fonsTextIterNext(ctx->fs, &iter, &q)) {
+ float c[4*2];
+ if (iter.prevGlyphIndex == -1) { // can not retrieve glyph?
+ if (nverts != 0) {
+ nvg__renderText(ctx, verts, nverts);
+ nverts = 0;
+ }
+ if (!nvg__allocTextAtlas(ctx))
+ break; // no memory :(
+ iter = prevIter;
+ fonsTextIterNext(ctx->fs, &iter, &q); // try again
+ if (iter.prevGlyphIndex == -1) // still can not find glyph?
+ break;
+ }
+ prevIter = iter;
+ if(isFlipped) {
+ float tmp;
+
+ tmp = q.y0; q.y0 = q.y1; q.y1 = tmp;
+ tmp = q.t0; q.t0 = q.t1; q.t1 = tmp;
+ }
+ // Transform corners.
+ nvgTransformPoint(&c[0],&c[1], state->xform, q.x0*invscale, q.y0*invscale);
+ nvgTransformPoint(&c[2],&c[3], state->xform, q.x1*invscale, q.y0*invscale);
+ nvgTransformPoint(&c[4],&c[5], state->xform, q.x1*invscale, q.y1*invscale);
+ nvgTransformPoint(&c[6],&c[7], state->xform, q.x0*invscale, q.y1*invscale);
+ // Create triangles
+ if (nverts+6 <= cverts) {
+ nvg__vset(&verts[nverts], c[0], c[1], q.s0, q.t0); nverts++;
+ nvg__vset(&verts[nverts], c[4], c[5], q.s1, q.t1); nverts++;
+ nvg__vset(&verts[nverts], c[2], c[3], q.s1, q.t0); nverts++;
+ nvg__vset(&verts[nverts], c[0], c[1], q.s0, q.t0); nverts++;
+ nvg__vset(&verts[nverts], c[6], c[7], q.s0, q.t1); nverts++;
+ nvg__vset(&verts[nverts], c[4], c[5], q.s1, q.t1); nverts++;
+ }
+ }
+
+ // TODO: add back-end bit to do this just once per frame.
+ nvg__flushTextTexture(ctx);
+
+ nvg__renderText(ctx, verts, nverts);
+
+ return iter.nextx / scale;
+}
+
+void nvgTextBox(NVGcontext* ctx, float x, float y, float breakRowWidth, const char* string, const char* end)
+{
+ NVGstate* state = nvg__getState(ctx);
+ NVGtextRow rows[2];
+ int nrows = 0, i;
+ int oldAlign = state->textAlign;
+ int haling = state->textAlign & (NVG_ALIGN_LEFT | NVG_ALIGN_CENTER | NVG_ALIGN_RIGHT);
+ int valign = state->textAlign & (NVG_ALIGN_TOP | NVG_ALIGN_MIDDLE | NVG_ALIGN_BOTTOM | NVG_ALIGN_BASELINE);
+ float lineh = 0;
+
+ if (state->fontId == FONS_INVALID) return;
+
+ nvgTextMetrics(ctx, NULL, NULL, &lineh);
+
+ state->textAlign = NVG_ALIGN_LEFT | valign;
+
+ while ((nrows = nvgTextBreakLines(ctx, string, end, breakRowWidth, rows, 2))) {
+ for (i = 0; i < nrows; i++) {
+ NVGtextRow* row = &rows[i];
+ if (haling & NVG_ALIGN_LEFT)
+ nvgText(ctx, x, y, row->start, row->end);
+ else if (haling & NVG_ALIGN_CENTER)
+ nvgText(ctx, x + breakRowWidth*0.5f - row->width*0.5f, y, row->start, row->end);
+ else if (haling & NVG_ALIGN_RIGHT)
+ nvgText(ctx, x + breakRowWidth - row->width, y, row->start, row->end);
+ y += lineh * state->lineHeight;
+ }
+ string = rows[nrows-1].next;
+ }
+
+ state->textAlign = oldAlign;
+}
+
+int nvgTextGlyphPositions(NVGcontext* ctx, float x, float y, const char* string, const char* end, NVGglyphPosition* positions, int maxPositions)
+{
+ NVGstate* state = nvg__getState(ctx);
+ float scale = nvg__getFontScale(state) * ctx->devicePxRatio;
+ float invscale = 1.0f / scale;
+ FONStextIter iter, prevIter;
+ FONSquad q;
+ int npos = 0;
+
+ if (state->fontId == FONS_INVALID) return 0;
+
+ if (end == NULL)
+ end = string + strlen(string);
+
+ if (string == end)
+ return 0;
+
+ fonsSetSize(ctx->fs, state->fontSize*scale);
+ fonsSetSpacing(ctx->fs, state->letterSpacing*scale);
+ fonsSetBlur(ctx->fs, state->fontBlur*scale);
+ fonsSetAlign(ctx->fs, state->textAlign);
+ fonsSetFont(ctx->fs, state->fontId);
+
+ fonsTextIterInit(ctx->fs, &iter, x*scale, y*scale, string, end, FONS_GLYPH_BITMAP_OPTIONAL);
+ prevIter = iter;
+ while (fonsTextIterNext(ctx->fs, &iter, &q)) {
+ if (iter.prevGlyphIndex < 0 && nvg__allocTextAtlas(ctx)) { // can not retrieve glyph?
+ iter = prevIter;
+ fonsTextIterNext(ctx->fs, &iter, &q); // try again
+ }
+ prevIter = iter;
+ positions[npos].str = iter.str;
+ positions[npos].x = iter.x * invscale;
+ positions[npos].minx = nvg__minf(iter.x, q.x0) * invscale;
+ positions[npos].maxx = nvg__maxf(iter.nextx, q.x1) * invscale;
+ npos++;
+ if (npos >= maxPositions)
+ break;
+ }
+
+ return npos;
+}
+
+enum NVGcodepointType {
+ NVG_SPACE,
+ NVG_NEWLINE,
+ NVG_CHAR,
+ NVG_CJK_CHAR,
+};
+
+int nvgTextBreakLines(NVGcontext* ctx, const char* string, const char* end, float breakRowWidth, NVGtextRow* rows, int maxRows)
+{
+ NVGstate* state = nvg__getState(ctx);
+ float scale = nvg__getFontScale(state) * ctx->devicePxRatio;
+ float invscale = 1.0f / scale;
+ FONStextIter iter, prevIter;
+ FONSquad q;
+ int nrows = 0;
+ float rowStartX = 0;
+ float rowWidth = 0;
+ float rowMinX = 0;
+ float rowMaxX = 0;
+ const char* rowStart = NULL;
+ const char* rowEnd = NULL;
+ const char* wordStart = NULL;
+ float wordStartX = 0;
+ float wordMinX = 0;
+ const char* breakEnd = NULL;
+ float breakWidth = 0;
+ float breakMaxX = 0;
+ int type = NVG_SPACE, ptype = NVG_SPACE;
+ unsigned int pcodepoint = 0;
+
+ if (maxRows == 0) return 0;
+ if (state->fontId == FONS_INVALID) return 0;
+
+ if (end == NULL)
+ end = string + strlen(string);
+
+ if (string == end) return 0;
+
+ fonsSetSize(ctx->fs, state->fontSize*scale);
+ fonsSetSpacing(ctx->fs, state->letterSpacing*scale);
+ fonsSetBlur(ctx->fs, state->fontBlur*scale);
+ fonsSetAlign(ctx->fs, state->textAlign);
+ fonsSetFont(ctx->fs, state->fontId);
+
+ breakRowWidth *= scale;
+
+ fonsTextIterInit(ctx->fs, &iter, 0, 0, string, end, FONS_GLYPH_BITMAP_OPTIONAL);
+ prevIter = iter;
+ while (fonsTextIterNext(ctx->fs, &iter, &q)) {
+ if (iter.prevGlyphIndex < 0 && nvg__allocTextAtlas(ctx)) { // can not retrieve glyph?
+ iter = prevIter;
+ fonsTextIterNext(ctx->fs, &iter, &q); // try again
+ }
+ prevIter = iter;
+ switch (iter.codepoint) {
+ case 9: // \t
+ case 11: // \v
+ case 12: // \f
+ case 32: // space
+ case 0x00a0: // NBSP
+ type = NVG_SPACE;
+ break;
+ case 10: // \n
+ type = pcodepoint == 13 ? NVG_SPACE : NVG_NEWLINE;
+ break;
+ case 13: // \r
+ type = pcodepoint == 10 ? NVG_SPACE : NVG_NEWLINE;
+ break;
+ case 0x0085: // NEL
+ type = NVG_NEWLINE;
+ break;
+ default:
+ if ((iter.codepoint >= 0x4E00 && iter.codepoint <= 0x9FFF) ||
+ (iter.codepoint >= 0x3000 && iter.codepoint <= 0x30FF) ||
+ (iter.codepoint >= 0xFF00 && iter.codepoint <= 0xFFEF) ||
+ (iter.codepoint >= 0x1100 && iter.codepoint <= 0x11FF) ||
+ (iter.codepoint >= 0x3130 && iter.codepoint <= 0x318F) ||
+ (iter.codepoint >= 0xAC00 && iter.codepoint <= 0xD7AF))
+ type = NVG_CJK_CHAR;
+ else
+ type = NVG_CHAR;
+ break;
+ }
+
+ if (type == NVG_NEWLINE) {
+ // Always handle new lines.
+ rows[nrows].start = rowStart != NULL ? rowStart : iter.str;
+ rows[nrows].end = rowEnd != NULL ? rowEnd : iter.str;
+ rows[nrows].width = rowWidth * invscale;
+ rows[nrows].minx = rowMinX * invscale;
+ rows[nrows].maxx = rowMaxX * invscale;
+ rows[nrows].next = iter.next;
+ nrows++;
+ if (nrows >= maxRows)
+ return nrows;
+ // Set null break point
+ breakEnd = rowStart;
+ breakWidth = 0.0;
+ breakMaxX = 0.0;
+ // Indicate to skip the white space at the beginning of the row.
+ rowStart = NULL;
+ rowEnd = NULL;
+ rowWidth = 0;
+ rowMinX = rowMaxX = 0;
+ } else {
+ if (rowStart == NULL) {
+ // Skip white space until the beginning of the line
+ if (type == NVG_CHAR || type == NVG_CJK_CHAR) {
+ // The current char is the row so far
+ rowStartX = iter.x;
+ rowStart = iter.str;
+ rowEnd = iter.next;
+ rowWidth = iter.nextx - rowStartX;
+ rowMinX = q.x0 - rowStartX;
+ rowMaxX = q.x1 - rowStartX;
+ wordStart = iter.str;
+ wordStartX = iter.x;
+ wordMinX = q.x0 - rowStartX;
+ // Set null break point
+ breakEnd = rowStart;
+ breakWidth = 0.0;
+ breakMaxX = 0.0;
+ }
+ } else {
+ float nextWidth = iter.nextx - rowStartX;
+
+ // track last non-white space character
+ if (type == NVG_CHAR || type == NVG_CJK_CHAR) {
+ rowEnd = iter.next;
+ rowWidth = iter.nextx - rowStartX;
+ rowMaxX = q.x1 - rowStartX;
+ }
+ // track last end of a word
+ if (((ptype == NVG_CHAR || ptype == NVG_CJK_CHAR) && type == NVG_SPACE) || type == NVG_CJK_CHAR) {
+ breakEnd = iter.str;
+ breakWidth = rowWidth;
+ breakMaxX = rowMaxX;
+ }
+ // track last beginning of a word
+ if ((ptype == NVG_SPACE && (type == NVG_CHAR || type == NVG_CJK_CHAR)) || type == NVG_CJK_CHAR) {
+ wordStart = iter.str;
+ wordStartX = iter.x;
+ wordMinX = q.x0;
+ }
+
+ // Break to new line when a character is beyond break width.
+ if ((type == NVG_CHAR || type == NVG_CJK_CHAR) && nextWidth > breakRowWidth) {
+ // The run length is too long, need to break to new line.
+ if (breakEnd == rowStart) {
+ // The current word is longer than the row length, just break it from here.
+ rows[nrows].start = rowStart;
+ rows[nrows].end = iter.str;
+ rows[nrows].width = rowWidth * invscale;
+ rows[nrows].minx = rowMinX * invscale;
+ rows[nrows].maxx = rowMaxX * invscale;
+ rows[nrows].next = iter.str;
+ nrows++;
+ if (nrows >= maxRows)
+ return nrows;
+ rowStartX = iter.x;
+ rowStart = iter.str;
+ rowEnd = iter.next;
+ rowWidth = iter.nextx - rowStartX;
+ rowMinX = q.x0 - rowStartX;
+ rowMaxX = q.x1 - rowStartX;
+ wordStart = iter.str;
+ wordStartX = iter.x;
+ wordMinX = q.x0 - rowStartX;
+ } else {
+ // Break the line from the end of the last word, and start new line from the beginning of the new.
+ rows[nrows].start = rowStart;
+ rows[nrows].end = breakEnd;
+ rows[nrows].width = breakWidth * invscale;
+ rows[nrows].minx = rowMinX * invscale;
+ rows[nrows].maxx = breakMaxX * invscale;
+ rows[nrows].next = wordStart;
+ nrows++;
+ if (nrows >= maxRows)
+ return nrows;
+ // Update row
+ rowStartX = wordStartX;
+ rowStart = wordStart;
+ rowEnd = iter.next;
+ rowWidth = iter.nextx - rowStartX;
+ rowMinX = wordMinX - rowStartX;
+ rowMaxX = q.x1 - rowStartX;
+ }
+ // Set null break point
+ breakEnd = rowStart;
+ breakWidth = 0.0;
+ breakMaxX = 0.0;
+ }
+ }
+ }
+
+ pcodepoint = iter.codepoint;
+ ptype = type;
+ }
+
+ // Break the line from the end of the last word, and start new line from the beginning of the new.
+ if (rowStart != NULL) {
+ rows[nrows].start = rowStart;
+ rows[nrows].end = rowEnd;
+ rows[nrows].width = rowWidth * invscale;
+ rows[nrows].minx = rowMinX * invscale;
+ rows[nrows].maxx = rowMaxX * invscale;
+ rows[nrows].next = end;
+ nrows++;
+ }
+
+ return nrows;
+}
+
+float nvgTextBounds(NVGcontext* ctx, float x, float y, const char* string, const char* end, float* bounds)
+{
+ NVGstate* state = nvg__getState(ctx);
+ float scale = nvg__getFontScale(state) * ctx->devicePxRatio;
+ float invscale = 1.0f / scale;
+ float width;
+
+ if (state->fontId == FONS_INVALID) return 0;
+
+ fonsSetSize(ctx->fs, state->fontSize*scale);
+ fonsSetSpacing(ctx->fs, state->letterSpacing*scale);
+ fonsSetBlur(ctx->fs, state->fontBlur*scale);
+ fonsSetAlign(ctx->fs, state->textAlign);
+ fonsSetFont(ctx->fs, state->fontId);
+
+ width = fonsTextBounds(ctx->fs, x*scale, y*scale, string, end, bounds);
+ if (bounds != NULL) {
+ // Use line bounds for height.
+ fonsLineBounds(ctx->fs, y*scale, &bounds[1], &bounds[3]);
+ bounds[0] *= invscale;
+ bounds[1] *= invscale;
+ bounds[2] *= invscale;
+ bounds[3] *= invscale;
+ }
+ return width * invscale;
+}
+
+void nvgTextBoxBounds(NVGcontext* ctx, float x, float y, float breakRowWidth, const char* string, const char* end, float* bounds)
+{
+ NVGstate* state = nvg__getState(ctx);
+ NVGtextRow rows[2];
+ float scale = nvg__getFontScale(state) * ctx->devicePxRatio;
+ float invscale = 1.0f / scale;
+ int nrows = 0, i;
+ int oldAlign = state->textAlign;
+ int haling = state->textAlign & (NVG_ALIGN_LEFT | NVG_ALIGN_CENTER | NVG_ALIGN_RIGHT);
+ int valign = state->textAlign & (NVG_ALIGN_TOP | NVG_ALIGN_MIDDLE | NVG_ALIGN_BOTTOM | NVG_ALIGN_BASELINE);
+ float lineh = 0, rminy = 0, rmaxy = 0;
+ float minx, miny, maxx, maxy;
+
+ if (state->fontId == FONS_INVALID) {
+ if (bounds != NULL)
+ bounds[0] = bounds[1] = bounds[2] = bounds[3] = 0.0f;
+ return;
+ }
+
+ nvgTextMetrics(ctx, NULL, NULL, &lineh);
+
+ state->textAlign = NVG_ALIGN_LEFT | valign;
+
+ minx = maxx = x;
+ miny = maxy = y;
+
+ fonsSetSize(ctx->fs, state->fontSize*scale);
+ fonsSetSpacing(ctx->fs, state->letterSpacing*scale);
+ fonsSetBlur(ctx->fs, state->fontBlur*scale);
+ fonsSetAlign(ctx->fs, state->textAlign);
+ fonsSetFont(ctx->fs, state->fontId);
+ fonsLineBounds(ctx->fs, 0, &rminy, &rmaxy);
+ rminy *= invscale;
+ rmaxy *= invscale;
+
+ while ((nrows = nvgTextBreakLines(ctx, string, end, breakRowWidth, rows, 2))) {
+ for (i = 0; i < nrows; i++) {
+ NVGtextRow* row = &rows[i];
+ float rminx, rmaxx, dx = 0;
+ // Horizontal bounds
+ if (haling & NVG_ALIGN_LEFT)
+ dx = 0;
+ else if (haling & NVG_ALIGN_CENTER)
+ dx = breakRowWidth*0.5f - row->width*0.5f;
+ else if (haling & NVG_ALIGN_RIGHT)
+ dx = breakRowWidth - row->width;
+ rminx = x + row->minx + dx;
+ rmaxx = x + row->maxx + dx;
+ minx = nvg__minf(minx, rminx);
+ maxx = nvg__maxf(maxx, rmaxx);
+ // Vertical bounds.
+ miny = nvg__minf(miny, y + rminy);
+ maxy = nvg__maxf(maxy, y + rmaxy);
+
+ y += lineh * state->lineHeight;
+ }
+ string = rows[nrows-1].next;
+ }
+
+ state->textAlign = oldAlign;
+
+ if (bounds != NULL) {
+ bounds[0] = minx;
+ bounds[1] = miny;
+ bounds[2] = maxx;
+ bounds[3] = maxy;
+ }
+}
+
+void nvgTextMetrics(NVGcontext* ctx, float* ascender, float* descender, float* lineh)
+{
+ NVGstate* state = nvg__getState(ctx);
+ float scale = nvg__getFontScale(state) * ctx->devicePxRatio;
+ float invscale = 1.0f / scale;
+
+ if (state->fontId == FONS_INVALID) return;
+
+ fonsSetSize(ctx->fs, state->fontSize*scale);
+ fonsSetSpacing(ctx->fs, state->letterSpacing*scale);
+ fonsSetBlur(ctx->fs, state->fontBlur*scale);
+ fonsSetAlign(ctx->fs, state->textAlign);
+ fonsSetFont(ctx->fs, state->fontId);
+
+ fonsVertMetrics(ctx->fs, ascender, descender, lineh);
+ if (ascender != NULL)
+ *ascender *= invscale;
+ if (descender != NULL)
+ *descender *= invscale;
+ if (lineh != NULL)
+ *lineh *= invscale;
+}
+// vim: ft=c nu noet ts=4
diff --git a/source/thirdparty/nanovg.h b/source/thirdparty/nanovg.h
new file mode 100644
index 0000000..f32a175
--- /dev/null
+++ b/source/thirdparty/nanovg.h
@@ -0,0 +1,708 @@
+//
+// Copyright (c) 2013 Mikko Mononen memon@inside.org
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+// 1. The origin of this software must not be misrepresented; you must not
+// claim that you wrote the original software. If you use this software
+// in a product, an acknowledgment in the product documentation would be
+// appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+// misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+//
+
+#ifndef NANOVG_H_F380EB38_CDA3_11EA_AF53_BBD96082A0CB
+#define NANOVG_H_F380EB38_CDA3_11EA_AF53_BBD96082A0CB
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define NVG_PI 3.14159265358979323846264338327f
+
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable: 4201) // nonstandard extension used : nameless struct/union
+#endif
+
+typedef struct NVGcontext NVGcontext;
+
+struct NVGcolor {
+ union {
+ float rgba[4];
+ struct {
+ float r,g,b,a;
+ };
+ };
+};
+typedef struct NVGcolor NVGcolor;
+
+struct NVGpaint {
+ float xform[6];
+ float extent[2];
+ float radius;
+ float feather;
+ NVGcolor innerColor;
+ NVGcolor outerColor;
+ int image;
+};
+typedef struct NVGpaint NVGpaint;
+
+enum NVGwinding {
+ NVG_CCW = 1, // Winding for solid shapes
+ NVG_CW = 2, // Winding for holes
+};
+
+enum NVGsolidity {
+ NVG_SOLID = 1, // CCW
+ NVG_HOLE = 2, // CW
+};
+
+enum NVGlineCap {
+ NVG_BUTT,
+ NVG_ROUND,
+ NVG_SQUARE,
+ NVG_BEVEL,
+ NVG_MITER,
+};
+
+enum NVGalign {
+ // Horizontal align
+ NVG_ALIGN_LEFT = 1<<0, // Default, align text horizontally to left.
+ NVG_ALIGN_CENTER = 1<<1, // Align text horizontally to center.
+ NVG_ALIGN_RIGHT = 1<<2, // Align text horizontally to right.
+ // Vertical align
+ NVG_ALIGN_TOP = 1<<3, // Align text vertically to top.
+ NVG_ALIGN_MIDDLE = 1<<4, // Align text vertically to middle.
+ NVG_ALIGN_BOTTOM = 1<<5, // Align text vertically to bottom.
+ NVG_ALIGN_BASELINE = 1<<6, // Default, align text vertically to baseline.
+};
+
+enum NVGblendFactor {
+ NVG_ZERO = 1<<0,
+ NVG_ONE = 1<<1,
+ NVG_SRC_COLOR = 1<<2,
+ NVG_ONE_MINUS_SRC_COLOR = 1<<3,
+ NVG_DST_COLOR = 1<<4,
+ NVG_ONE_MINUS_DST_COLOR = 1<<5,
+ NVG_SRC_ALPHA = 1<<6,
+ NVG_ONE_MINUS_SRC_ALPHA = 1<<7,
+ NVG_DST_ALPHA = 1<<8,
+ NVG_ONE_MINUS_DST_ALPHA = 1<<9,
+ NVG_SRC_ALPHA_SATURATE = 1<<10,
+};
+
+enum NVGcompositeOperation {
+ NVG_SOURCE_OVER,
+ NVG_SOURCE_IN,
+ NVG_SOURCE_OUT,
+ NVG_ATOP,
+ NVG_DESTINATION_OVER,
+ NVG_DESTINATION_IN,
+ NVG_DESTINATION_OUT,
+ NVG_DESTINATION_ATOP,
+ NVG_LIGHTER,
+ NVG_COPY,
+ NVG_XOR,
+};
+
+struct NVGcompositeOperationState {
+ int srcRGB;
+ int dstRGB;
+ int srcAlpha;
+ int dstAlpha;
+};
+typedef struct NVGcompositeOperationState NVGcompositeOperationState;
+
+struct NVGglyphPosition {
+ const char* str; // Position of the glyph in the input string.
+ float x; // The x-coordinate of the logical glyph position.
+ float minx, maxx; // The bounds of the glyph shape.
+};
+typedef struct NVGglyphPosition NVGglyphPosition;
+
+struct NVGtextRow {
+ const char* start; // Pointer to the input text where the row starts.
+ const char* end; // Pointer to the input text where the row ends (one past the last character).
+ const char* next; // Pointer to the beginning of the next row.
+ float width; // Logical width of the row.
+ float minx, maxx; // Actual bounds of the row. Logical with and bounds can differ because of kerning and some parts over extending.
+};
+typedef struct NVGtextRow NVGtextRow;
+
+enum NVGimageFlags {
+ NVG_IMAGE_GENERATE_MIPMAPS = 1<<0, // Generate mipmaps during creation of the image.
+ NVG_IMAGE_REPEATX = 1<<1, // Repeat image in X direction.
+ NVG_IMAGE_REPEATY = 1<<2, // Repeat image in Y direction.
+ NVG_IMAGE_FLIPY = 1<<3, // Flips (inverses) image in Y direction when rendered.
+ NVG_IMAGE_PREMULTIPLIED = 1<<4, // Image data has premultiplied alpha.
+ NVG_IMAGE_NEAREST = 1<<5, // Image interpolation is Nearest instead Linear
+};
+
+// Begin drawing a new frame
+// Calls to nanovg drawing API should be wrapped in nvgBeginFrame() & nvgEndFrame()
+// nvgBeginFrame() defines the size of the window to render to in relation currently
+// set viewport (i.e. glViewport on GL backends). Device pixel ration allows to
+// control the rendering on Hi-DPI devices.
+// For example, GLFW returns two dimension for an opened window: window size and
+// frame buffer size. In that case you would set windowWidth/Height to the window size
+// devicePixelRatio to: frameBufferWidth / windowWidth.
+void nvgBeginFrame(NVGcontext* ctx, float windowWidth, float windowHeight, float devicePixelRatio);
+
+// Cancels drawing the current frame.
+void nvgCancelFrame(NVGcontext* ctx);
+
+// Ends drawing flushing remaining render state.
+void nvgEndFrame(NVGcontext* ctx);
+
+//
+// Composite operation
+//
+// The composite operations in NanoVG are modeled after HTML Canvas API, and
+// the blend func is based on OpenGL (see corresponding manuals for more info).
+// The colors in the blending state have premultiplied alpha.
+
+// Sets the composite operation. The op parameter should be one of NVGcompositeOperation.
+void nvgGlobalCompositeOperation(NVGcontext* ctx, int op);
+
+// Sets the composite operation with custom pixel arithmetic. The parameters should be one of NVGblendFactor.
+void nvgGlobalCompositeBlendFunc(NVGcontext* ctx, int sfactor, int dfactor);
+
+// Sets the composite operation with custom pixel arithmetic for RGB and alpha components separately. The parameters should be one of NVGblendFactor.
+void nvgGlobalCompositeBlendFuncSeparate(NVGcontext* ctx, int srcRGB, int dstRGB, int srcAlpha, int dstAlpha);
+
+//
+// Color utils
+//
+// Colors in NanoVG are stored as unsigned ints in ABGR format.
+
+// Returns a color value from red, green, blue values. Alpha will be set to 255 (1.0f).
+NVGcolor nvgRGB(unsigned char r, unsigned char g, unsigned char b);
+
+// Returns a color value from red, green, blue values. Alpha will be set to 1.0f.
+NVGcolor nvgRGBf(float r, float g, float b);
+
+
+// Returns a color value from red, green, blue and alpha values.
+NVGcolor nvgRGBA(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
+
+// Returns a color value from red, green, blue and alpha values.
+NVGcolor nvgRGBAf(float r, float g, float b, float a);
+
+
+// Linearly interpolates from color c0 to c1, and returns resulting color value.
+NVGcolor nvgLerpRGBA(NVGcolor c0, NVGcolor c1, float u);
+
+// Sets transparency of a color value.
+NVGcolor nvgTransRGBA(NVGcolor c0, unsigned char a);
+
+// Sets transparency of a color value.
+NVGcolor nvgTransRGBAf(NVGcolor c0, float a);
+
+// Returns color value specified by hue, saturation and lightness.
+// HSL values are all in range [0..1], alpha will be set to 255.
+NVGcolor nvgHSL(float h, float s, float l);
+
+// Returns color value specified by hue, saturation and lightness and alpha.
+// HSL values are all in range [0..1], alpha in range [0..255]
+NVGcolor nvgHSLA(float h, float s, float l, unsigned char a);
+
+//
+// State Handling
+//
+// NanoVG contains state which represents how paths will be rendered.
+// The state contains transform, fill and stroke styles, text and font styles,
+// and scissor clipping.
+
+// Pushes and saves the current render state into a state stack.
+// A matching nvgRestore() must be used to restore the state.
+void nvgSave(NVGcontext* ctx);
+
+// Pops and restores current render state.
+void nvgRestore(NVGcontext* ctx);
+
+// Resets current render state to default values. Does not affect the render state stack.
+void nvgReset(NVGcontext* ctx);
+
+//
+// Render styles
+//
+// Fill and stroke render style can be either a solid color or a paint which is a gradient or a pattern.
+// Solid color is simply defined as a color value, different kinds of paints can be created
+// using nvgLinearGradient(), nvgBoxGradient(), nvgRadialGradient() and nvgImagePattern().
+//
+// Current render style can be saved and restored using nvgSave() and nvgRestore().
+
+// Sets whether to draw antialias for nvgStroke() and nvgFill(). It's enabled by default.
+void nvgShapeAntiAlias(NVGcontext* ctx, int enabled);
+
+// Sets current stroke style to a solid color.
+void nvgStrokeColor(NVGcontext* ctx, NVGcolor color);
+
+// Sets current stroke style to a paint, which can be a one of the gradients or a pattern.
+void nvgStrokePaint(NVGcontext* ctx, NVGpaint paint);
+
+// Sets current fill style to a solid color.
+void nvgFillColor(NVGcontext* ctx, NVGcolor color);
+
+// Sets current fill style to a paint, which can be a one of the gradients or a pattern.
+void nvgFillPaint(NVGcontext* ctx, NVGpaint paint);
+
+// Sets the miter limit of the stroke style.
+// Miter limit controls when a sharp corner is beveled.
+void nvgMiterLimit(NVGcontext* ctx, float limit);
+
+// Sets the stroke width of the stroke style.
+void nvgStrokeWidth(NVGcontext* ctx, float size);
+
+// Sets how the end of the line (cap) is drawn,
+// Can be one of: NVG_BUTT (default), NVG_ROUND, NVG_SQUARE.
+void nvgLineCap(NVGcontext* ctx, int cap);
+
+// Sets how sharp path corners are drawn.
+// Can be one of NVG_MITER (default), NVG_ROUND, NVG_BEVEL.
+void nvgLineJoin(NVGcontext* ctx, int join);
+
+// Sets the transparency applied to all rendered shapes.
+// Already transparent paths will get proportionally more transparent as well.
+void nvgGlobalAlpha(NVGcontext* ctx, float alpha);
+
+//
+// Transforms
+//
+// The paths, gradients, patterns and scissor region are transformed by an transformation
+// matrix at the time when they are passed to the API.
+// The current transformation matrix is a affine matrix:
+// [sx kx tx]
+// [ky sy ty]
+// [ 0 0 1]
+// Where: sx,sy define scaling, kx,ky skewing, and tx,ty translation.
+// The last row is assumed to be 0,0,1 and is not stored.
+//
+// Apart from nvgResetTransform(), each transformation function first creates
+// specific transformation matrix and pre-multiplies the current transformation by it.
+//
+// Current coordinate system (transformation) can be saved and restored using nvgSave() and nvgRestore().
+
+// Resets current transform to a identity matrix.
+void nvgResetTransform(NVGcontext* ctx);
+
+// Premultiplies current coordinate system by specified matrix.
+// The parameters are interpreted as matrix as follows:
+// [a c e]
+// [b d f]
+// [0 0 1]
+void nvgTransform(NVGcontext* ctx, float a, float b, float c, float d, float e, float f);
+
+// Translates current coordinate system.
+void nvgTranslate(NVGcontext* ctx, float x, float y);
+
+// Rotates current coordinate system. Angle is specified in radians.
+void nvgRotate(NVGcontext* ctx, float angle);
+
+// Skews the current coordinate system along X axis. Angle is specified in radians.
+void nvgSkewX(NVGcontext* ctx, float angle);
+
+// Skews the current coordinate system along Y axis. Angle is specified in radians.
+void nvgSkewY(NVGcontext* ctx, float angle);
+
+// Scales the current coordinate system.
+void nvgScale(NVGcontext* ctx, float x, float y);
+
+// Stores the top part (a-f) of the current transformation matrix in to the specified buffer.
+// [a c e]
+// [b d f]
+// [0 0 1]
+// There should be space for 6 floats in the return buffer for the values a-f.
+void nvgCurrentTransform(NVGcontext* ctx, float* xform);
+
+
+// The following functions can be used to make calculations on 2x3 transformation matrices.
+// A 2x3 matrix is represented as float[6].
+
+// Sets the transform to identity matrix.
+void nvgTransformIdentity(float* dst);
+
+// Sets the transform to translation matrix matrix.
+void nvgTransformTranslate(float* dst, float tx, float ty);
+
+// Sets the transform to scale matrix.
+void nvgTransformScale(float* dst, float sx, float sy);
+
+// Sets the transform to rotate matrix. Angle is specified in radians.
+void nvgTransformRotate(float* dst, float a);
+
+// Sets the transform to skew-x matrix. Angle is specified in radians.
+void nvgTransformSkewX(float* dst, float a);
+
+// Sets the transform to skew-y matrix. Angle is specified in radians.
+void nvgTransformSkewY(float* dst, float a);
+
+// Sets the transform to the result of multiplication of two transforms, of A = A*B.
+void nvgTransformMultiply(float* dst, const float* src);
+
+// Sets the transform to the result of multiplication of two transforms, of A = B*A.
+void nvgTransformPremultiply(float* dst, const float* src);
+
+// Sets the destination to inverse of specified transform.
+// Returns 1 if the inverse could be calculated, else 0.
+int nvgTransformInverse(float* dst, const float* src);
+
+// Transform a point by given transform.
+void nvgTransformPoint(float* dstx, float* dsty, const float* xform, float srcx, float srcy);
+
+// Converts degrees to radians and vice versa.
+float nvgDegToRad(float deg);
+float nvgRadToDeg(float rad);
+
+//
+// Images
+//
+// NanoVG allows you to load jpg, png, psd, tga, pic and gif files to be used for rendering.
+// In addition you can upload your own image. The image loading is provided by stb_image.
+// The parameter imageFlags is combination of flags defined in NVGimageFlags.
+
+// Creates image by loading it from the disk from specified file name.
+// Returns handle to the image.
+int nvgCreateImage(NVGcontext* ctx, const char* filename, int imageFlags);
+
+// Creates image by loading it from the specified chunk of memory.
+// Returns handle to the image.
+int nvgCreateImageMem(NVGcontext* ctx, int imageFlags, unsigned char* data, int ndata);
+
+// Creates image from specified image data.
+// Returns handle to the image.
+int nvgCreateImageRGBA(NVGcontext* ctx, int w, int h, int imageFlags, const unsigned char* data);
+
+int nvgCreateImageAlpha(NVGcontext* ctx, int w, int h, int imageFlags, const unsigned char* data);
+
+// Updates image data specified by image handle.
+void nvgUpdateImage(NVGcontext* ctx, int image, const unsigned char* data);
+
+// Returns the dimensions of a created image.
+void nvgImageSize(NVGcontext* ctx, int image, int* w, int* h);
+
+// Deletes created image.
+void nvgDeleteImage(NVGcontext* ctx, int image);
+
+//
+// Paints
+//
+// NanoVG supports four types of paints: linear gradient, box gradient, radial gradient and image pattern.
+// These can be used as paints for strokes and fills.
+
+// Creates and returns a linear gradient. Parameters (sx,sy)-(ex,ey) specify the start and end coordinates
+// of the linear gradient, icol specifies the start color and ocol the end color.
+// The gradient is transformed by the current transform when it is passed to nvgFillPaint() or nvgStrokePaint().
+NVGpaint nvgLinearGradient(NVGcontext* ctx, float sx, float sy, float ex, float ey,
+ NVGcolor icol, NVGcolor ocol);
+
+// Creates and returns a box gradient. Box gradient is a feathered rounded rectangle, it is useful for rendering
+// drop shadows or highlights for boxes. Parameters (x,y) define the top-left corner of the rectangle,
+// (w,h) define the size of the rectangle, r defines the corner radius, and f feather. Feather defines how blurry
+// the border of the rectangle is. Parameter icol specifies the inner color and ocol the outer color of the gradient.
+// The gradient is transformed by the current transform when it is passed to nvgFillPaint() or nvgStrokePaint().
+NVGpaint nvgBoxGradient(NVGcontext* ctx, float x, float y, float w, float h,
+ float r, float f, NVGcolor icol, NVGcolor ocol);
+
+// Creates and returns a radial gradient. Parameters (cx,cy) specify the center, inr and outr specify
+// the inner and outer radius of the gradient, icol specifies the start color and ocol the end color.
+// The gradient is transformed by the current transform when it is passed to nvgFillPaint() or nvgStrokePaint().
+NVGpaint nvgRadialGradient(NVGcontext* ctx, float cx, float cy, float inr, float outr,
+ NVGcolor icol, NVGcolor ocol);
+
+// Creates and returns an image pattern. Parameters (ox,oy) specify the left-top location of the image pattern,
+// (ex,ey) the size of one image, angle rotation around the top-left corner, image is handle to the image to render.
+// The gradient is transformed by the current transform when it is passed to nvgFillPaint() or nvgStrokePaint().
+NVGpaint nvgImagePattern(NVGcontext* ctx, float ox, float oy, float ex, float ey,
+ float angle, int image, float alpha);
+
+//
+// Scissoring
+//
+// Scissoring allows you to clip the rendering into a rectangle. This is useful for various
+// user interface cases like rendering a text edit or a timeline.
+
+// Sets the current scissor rectangle.
+// The scissor rectangle is transformed by the current transform.
+void nvgScissor(NVGcontext* ctx, float x, float y, float w, float h);
+
+// Intersects current scissor rectangle with the specified rectangle.
+// The scissor rectangle is transformed by the current transform.
+// Note: in case the rotation of previous scissor rect differs from
+// the current one, the intersection will be done between the specified
+// rectangle and the previous scissor rectangle transformed in the current
+// transform space. The resulting shape is always rectangle.
+void nvgIntersectScissor(NVGcontext* ctx, float x, float y, float w, float h);
+
+// Reset and disables scissoring.
+void nvgResetScissor(NVGcontext* ctx);
+
+//
+// Paths
+//
+// Drawing a new shape starts with nvgBeginPath(), it clears all the currently defined paths.
+// Then you define one or more paths and sub-paths which describe the shape. The are functions
+// to draw common shapes like rectangles and circles, and lower level step-by-step functions,
+// which allow to define a path curve by curve.
+//
+// NanoVG uses even-odd fill rule to draw the shapes. Solid shapes should have counter clockwise
+// winding and holes should have counter clockwise order. To specify winding of a path you can
+// call nvgPathWinding(). This is useful especially for the common shapes, which are drawn CCW.
+//
+// Finally you can fill the path using current fill style by calling nvgFill(), and stroke it
+// with current stroke style by calling nvgStroke().
+//
+// The curve segments and sub-paths are transformed by the current transform.
+
+// Clears the current path and sub-paths.
+void nvgBeginPath(NVGcontext* ctx);
+
+// Starts new sub-path with specified point as first point.
+void nvgMoveTo(NVGcontext* ctx, float x, float y);
+
+// Adds line segment from the last point in the path to the specified point.
+void nvgLineTo(NVGcontext* ctx, float x, float y);
+
+// Adds cubic bezier segment from last point in the path via two control points to the specified point.
+void nvgBezierTo(NVGcontext* ctx, float c1x, float c1y, float c2x, float c2y, float x, float y);
+
+// Adds quadratic bezier segment from last point in the path via a control point to the specified point.
+void nvgQuadTo(NVGcontext* ctx, float cx, float cy, float x, float y);
+
+// Adds an arc segment at the corner defined by the last path point, and two specified points.
+void nvgArcTo(NVGcontext* ctx, float x1, float y1, float x2, float y2, float radius);
+
+// Closes current sub-path with a line segment.
+void nvgClosePath(NVGcontext* ctx);
+
+// Sets the current sub-path winding, see NVGwinding and NVGsolidity.
+void nvgPathWinding(NVGcontext* ctx, int dir);
+
+// Creates new circle arc shaped sub-path. The arc center is at cx,cy, the arc radius is r,
+// and the arc is drawn from angle a0 to a1, and swept in direction dir (NVG_CCW, or NVG_CW).
+// Angles are specified in radians.
+void nvgArc(NVGcontext* ctx, float cx, float cy, float r, float a0, float a1, int dir);
+
+void nvgBarc(NVGcontext* ctx, float cx, float cy, float r, float a0, float a1, int dir, int join);
+
+// Creates new rectangle shaped sub-path.
+void nvgRect(NVGcontext* ctx, float x, float y, float w, float h);
+
+// Creates new rounded rectangle shaped sub-path.
+void nvgRoundedRect(NVGcontext* ctx, float x, float y, float w, float h, float r);
+
+// Creates new rounded rectangle shaped sub-path with varying radii for each corner.
+void nvgRoundedRectVarying(NVGcontext* ctx, float x, float y, float w, float h, float radTopLeft, float radTopRight, float radBottomRight, float radBottomLeft);
+
+// Creates new ellipse shaped sub-path.
+void nvgEllipse(NVGcontext* ctx, float cx, float cy, float rx, float ry);
+
+// Creates new circle shaped sub-path.
+void nvgCircle(NVGcontext* ctx, float cx, float cy, float r);
+
+// Fills the current path with current fill style.
+void nvgFill(NVGcontext* ctx);
+
+// Fills the current path with current stroke style.
+void nvgStroke(NVGcontext* ctx);
+
+
+//
+// Text
+//
+// NanoVG allows you to load .ttf files and use the font to render text.
+//
+// The appearance of the text can be defined by setting the current text style
+// and by specifying the fill color. Common text and font settings such as
+// font size, letter spacing and text align are supported. Font blur allows you
+// to create simple text effects such as drop shadows.
+//
+// At render time the font face can be set based on the font handles or name.
+//
+// Font measure functions return values in local space, the calculations are
+// carried in the same resolution as the final rendering. This is done because
+// the text glyph positions are snapped to the nearest pixels sharp rendering.
+//
+// The local space means that values are not rotated or scale as per the current
+// transformation. For example if you set font size to 12, which would mean that
+// line height is 16, then regardless of the current scaling and rotation, the
+// returned line height is always 16. Some measures may vary because of the scaling
+// since aforementioned pixel snapping.
+//
+// While this may sound a little odd, the setup allows you to always render the
+// same way regardless of scaling. I.e. following works regardless of scaling:
+//
+// const char* txt = "Text me up.";
+// nvgTextBounds(vg, x,y, txt, NULL, bounds);
+// nvgBeginPath(vg);
+// nvgRoundedRect(vg, bounds[0],bounds[1], bounds[2]-bounds[0], bounds[3]-bounds[1]);
+// nvgFill(vg);
+//
+// Note: currently only solid color fill is supported for text.
+
+// Creates font by loading it from the disk from specified file name.
+// Returns handle to the font.
+int nvgCreateFont(NVGcontext* ctx, const char* name, const char* filename);
+
+// fontIndex specifies which font face to load from a .ttf/.ttc file.
+int nvgCreateFontAtIndex(NVGcontext* ctx, const char* name, const char* filename, const int fontIndex);
+
+// Creates font by loading it from the specified memory chunk.
+// Returns handle to the font.
+int nvgCreateFontMem(NVGcontext* ctx, const char* name, unsigned char* data, int ndata, int freeData);
+
+// fontIndex specifies which font face to load from a .ttf/.ttc file.
+int nvgCreateFontMemAtIndex(NVGcontext* ctx, const char* name, unsigned char* data, int ndata, int freeData, const int fontIndex);
+
+// Finds a loaded font of specified name, and returns handle to it, or -1 if the font is not found.
+int nvgFindFont(NVGcontext* ctx, const char* name);
+
+// Adds a fallback font by handle.
+int nvgAddFallbackFontId(NVGcontext* ctx, int baseFont, int fallbackFont);
+
+// Adds a fallback font by name.
+int nvgAddFallbackFont(NVGcontext* ctx, const char* baseFont, const char* fallbackFont);
+
+// Resets fallback fonts by handle.
+void nvgResetFallbackFontsId(NVGcontext* ctx, int baseFont);
+
+// Resets fallback fonts by name.
+void nvgResetFallbackFonts(NVGcontext* ctx, const char* baseFont);
+
+// Sets the font size of current text style.
+void nvgFontSize(NVGcontext* ctx, float size);
+
+// Sets the blur of current text style.
+void nvgFontBlur(NVGcontext* ctx, float blur);
+
+// Sets the letter spacing of current text style.
+void nvgTextLetterSpacing(NVGcontext* ctx, float spacing);
+
+// Sets the proportional line height of current text style. The line height is specified as multiple of font size.
+void nvgTextLineHeight(NVGcontext* ctx, float lineHeight);
+
+// Sets the text align of current text style, see NVGalign for options.
+void nvgTextAlign(NVGcontext* ctx, int align);
+
+// Sets the font face based on specified id of current text style.
+void nvgFontFaceId(NVGcontext* ctx, int font);
+
+// Sets the font face based on specified name of current text style.
+void nvgFontFace(NVGcontext* ctx, const char* font);
+
+// Draws text string at specified location. If end is specified only the sub-string up to the end is drawn.
+float nvgText(NVGcontext* ctx, float x, float y, const char* string, const char* end);
+
+// Draws multi-line text string at specified location wrapped at the specified width. If end is specified only the sub-string up to the end is drawn.
+// White space is stripped at the beginning of the rows, the text is split at word boundaries or when new-line characters are encountered.
+// Words longer than the max width are slit at nearest character (i.e. no hyphenation).
+void nvgTextBox(NVGcontext* ctx, float x, float y, float breakRowWidth, const char* string, const char* end);
+
+// Measures the specified text string. Parameter bounds should be a pointer to float[4],
+// if the bounding box of the text should be returned. The bounds value are [xmin,ymin, xmax,ymax]
+// Returns the horizontal advance of the measured text (i.e. where the next character should drawn).
+// Measured values are returned in local coordinate space.
+float nvgTextBounds(NVGcontext* ctx, float x, float y, const char* string, const char* end, float* bounds);
+
+// Measures the specified multi-text string. Parameter bounds should be a pointer to float[4],
+// if the bounding box of the text should be returned. The bounds value are [xmin,ymin, xmax,ymax]
+// Measured values are returned in local coordinate space.
+void nvgTextBoxBounds(NVGcontext* ctx, float x, float y, float breakRowWidth, const char* string, const char* end, float* bounds);
+
+// Calculates the glyph x positions of the specified text. If end is specified only the sub-string will be used.
+// Measured values are returned in local coordinate space.
+int nvgTextGlyphPositions(NVGcontext* ctx, float x, float y, const char* string, const char* end, NVGglyphPosition* positions, int maxPositions);
+
+// Returns the vertical metrics based on the current text style.
+// Measured values are returned in local coordinate space.
+void nvgTextMetrics(NVGcontext* ctx, float* ascender, float* descender, float* lineh);
+
+// Breaks the specified text into lines. If end is specified only the sub-string will be used.
+// White space is stripped at the beginning of the rows, the text is split at word boundaries or when new-line characters are encountered.
+// Words longer than the max width are slit at nearest character (i.e. no hyphenation).
+int nvgTextBreakLines(NVGcontext* ctx, const char* string, const char* end, float breakRowWidth, NVGtextRow* rows, int maxRows);
+
+//
+// Internal Render API
+//
+enum NVGtexture {
+ NVG_TEXTURE_ALPHA = 0x01,
+ NVG_TEXTURE_RGBA = 0x02,
+};
+
+struct NVGscissor {
+ float xform[6];
+ float extent[2];
+};
+typedef struct NVGscissor NVGscissor;
+
+struct NVGvertex {
+ float x,y,u,v;
+};
+typedef struct NVGvertex NVGvertex;
+
+struct NVGpath {
+ int first;
+ int count;
+ unsigned char closed;
+ int nbevel;
+ NVGvertex* fill;
+ int nfill;
+ NVGvertex* stroke;
+ int nstroke;
+ int winding;
+ int convex;
+};
+typedef struct NVGpath NVGpath;
+
+struct NVGparams {
+ void* userPtr;
+ int edgeAntiAlias;
+ int (*renderCreate)(void* uptr);
+ int (*renderCreateTexture)(void* uptr, int type, int w, int h, int imageFlags, const unsigned char* data);
+ int (*renderDeleteTexture)(void* uptr, int image);
+ int (*renderUpdateTexture)(void* uptr, int image, int x, int y, int w, int h, const unsigned char* data);
+ int (*renderGetTextureSize)(void* uptr, int image, int* w, int* h);
+ void (*renderViewport)(void* uptr, float width, float height, float devicePixelRatio);
+ void (*renderCancel)(void* uptr);
+ void (*renderFlush)(void* uptr);
+ void (*renderFill)(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, float fringe, const float* bounds, const NVGpath* paths, int npaths);
+ void (*renderStroke)(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, float fringe, float strokeWidth, const NVGpath* paths, int npaths);
+ void (*renderTriangles)(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, const NVGvertex* verts, int nverts, float fringe);
+ void (*renderDelete)(void* uptr);
+};
+typedef struct NVGparams NVGparams;
+
+// Constructor and destructor, called by the render back-end.
+NVGcontext* nvgCreateInternal(NVGparams* params);
+void nvgDeleteInternal(NVGcontext* ctx);
+
+NVGparams* nvgInternalParams(NVGcontext* ctx);
+
+// Debug function to dump cached path data.
+void nvgDebugDumpPathCache(NVGcontext* ctx);
+
+#if defined(__ANDROID__)
+#include <stdio.h>
+#include <android/asset_manager.h>
+void nvgSetAndroidAssetManager(AAssetManager * manager);
+FILE * android_fopen(const char* fname, const char* mode);
+#endif
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
+#define NVG_NOTUSED(v) for (;;) { (void)(1 ? (void)0 : ( (void)(v) ) ); break; }
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NANOVG_H_F380EB38_CDA3_11EA_AF53_BBD96082A0CB
diff --git a/source/thirdparty/nanovg_gl.c b/source/thirdparty/nanovg_gl.c
new file mode 100644
index 0000000..8a6f53f
--- /dev/null
+++ b/source/thirdparty/nanovg_gl.c
@@ -0,0 +1,1651 @@
+//
+// Copyright (c) 2009-2013 Mikko Mononen memon@inside.org
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+// 1. The origin of this software must not be misrepresented; you must not
+// claim that you wrote the original software. If you use this software
+// in a product, an acknowledgment in the product documentation would be
+// appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+// misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+//
+
+#if defined(NANOVG_GL2) + defined(NANOVG_GL3) + defined(NANOVG_GLES2) + defined(NANOVG_GLES3) != 1
+#error Define exactly one of NANOVG_GL2, NANOVG_GL3, NANOVG_GLES2, NANOVG_GLES3
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+
+#include "android.h"
+
+#ifdef NANOVG_USE_GLEW
+# include <GL/glew.h>
+static int glew_initialized = 0;
+#endif
+
+#ifdef NANOVG_GLES2
+# include <GLES2/gl2.h>
+# include <GLES2/gl2ext.h>
+#endif
+
+#ifdef NANOVG_GLES3
+# include <GLES3/gl3.h>
+#endif
+
+#if defined(NANOVG_GL2) || defined(NANOVG_GL3)
+#include <GL/gl.h>
+#endif
+
+#include "nanovg_gl.h"
+
+#if defined NANOVG_GL2
+//# define NANOVG_GL2 1
+#elif defined NANOVG_GL3
+//# define NANOVG_GL3 1
+# define NANOVG_GL_USE_UNIFORMBUFFER 1
+#elif defined NANOVG_GLES2
+//# define NANOVG_GLES2 1
+#elif defined NANOVG_GLES3
+//# define NANOVG_GLES3 1
+#endif
+
+#define NANOVG_GL_USE_STATE_FILTER (1)
+
+enum GLNVGuniformLoc {
+ GLNVG_LOC_VIEWSIZE,
+ GLNVG_LOC_TEX,
+ GLNVG_LOC_FRAG,
+ GLNVG_MAX_LOCS
+};
+
+enum GLNVGshaderType {
+ NSVG_SHADER_FILLGRAD,
+ NSVG_SHADER_FILLIMG,
+ NSVG_SHADER_SIMPLE,
+ NSVG_SHADER_IMG
+};
+
+#if NANOVG_GL_USE_UNIFORMBUFFER
+enum GLNVGuniformBindings {
+ GLNVG_FRAG_BINDING = 0,
+};
+#endif
+
+struct GLNVGshader {
+ GLuint prog;
+ GLuint frag;
+ GLuint vert;
+ GLint loc[GLNVG_MAX_LOCS];
+};
+typedef struct GLNVGshader GLNVGshader;
+
+struct GLNVGtexture {
+ int id;
+ GLuint tex;
+ int width, height;
+ int type;
+ int flags;
+};
+typedef struct GLNVGtexture GLNVGtexture;
+
+struct GLNVGblend
+{
+ GLenum srcRGB;
+ GLenum dstRGB;
+ GLenum srcAlpha;
+ GLenum dstAlpha;
+};
+typedef struct GLNVGblend GLNVGblend;
+
+enum GLNVGcallType {
+ GLNVG_NONE = 0,
+ GLNVG_FILL,
+ GLNVG_CONVEXFILL,
+ GLNVG_STROKE,
+ GLNVG_TRIANGLES,
+};
+
+struct GLNVGcall {
+ int type;
+ int image;
+ int pathOffset;
+ int pathCount;
+ int triangleOffset;
+ int triangleCount;
+ int uniformOffset;
+ GLNVGblend blendFunc;
+};
+typedef struct GLNVGcall GLNVGcall;
+
+struct GLNVGpath {
+ int fillOffset;
+ int fillCount;
+ int strokeOffset;
+ int strokeCount;
+};
+typedef struct GLNVGpath GLNVGpath;
+
+struct GLNVGfragUniforms {
+ #if NANOVG_GL_USE_UNIFORMBUFFER
+ float scissorMat[12]; // matrices are actually 3 vec4s
+ float paintMat[12];
+ struct NVGcolor innerCol;
+ struct NVGcolor outerCol;
+ float scissorExt[2];
+ float scissorScale[2];
+ float extent[2];
+ float radius;
+ float feather;
+ float strokeMult;
+ float strokeThr;
+ int texType;
+ int type;
+ #else
+ // note: after modifying layout or size of uniform array,
+ // don't forget to also update the fragment shader source!
+ #define NANOVG_GL_UNIFORMARRAY_SIZE 11
+ union {
+ struct {
+ float scissorMat[12]; // matrices are actually 3 vec4s
+ float paintMat[12];
+ struct NVGcolor innerCol;
+ struct NVGcolor outerCol;
+ float scissorExt[2];
+ float scissorScale[2];
+ float extent[2];
+ float radius;
+ float feather;
+ float strokeMult;
+ float strokeThr;
+ float texType;
+ float type;
+ };
+ float uniformArray[NANOVG_GL_UNIFORMARRAY_SIZE][4];
+ };
+ #endif
+};
+typedef struct GLNVGfragUniforms GLNVGfragUniforms;
+
+struct GLNVGcontext {
+ GLNVGshader shader;
+ GLNVGtexture* textures;
+ float view[2];
+ int ntextures;
+ int ctextures;
+ int textureId;
+ GLuint vertBuf;
+#if defined NANOVG_GL3
+ GLuint vertArr;
+#endif
+#if NANOVG_GL_USE_UNIFORMBUFFER
+ GLuint fragBuf;
+#endif
+ int fragSize;
+ int flags;
+
+ // Per frame buffers
+ GLNVGcall* calls;
+ int ccalls;
+ int ncalls;
+ GLNVGpath* paths;
+ int cpaths;
+ int npaths;
+ struct NVGvertex* verts;
+ int cverts;
+ int nverts;
+ unsigned char* uniforms;
+ int cuniforms;
+ int nuniforms;
+
+ // cached state
+ #if NANOVG_GL_USE_STATE_FILTER
+ GLuint boundTexture;
+ GLuint stencilMask;
+ GLenum stencilFunc;
+ GLint stencilFuncRef;
+ GLuint stencilFuncMask;
+ GLNVGblend blendFunc;
+ #endif
+
+ int dummyTex;
+};
+typedef struct GLNVGcontext GLNVGcontext;
+
+static int glnvg__maxi(int a, int b) { return a > b ? a : b; }
+
+#ifdef NANOVG_GLES2
+static unsigned int glnvg__nearestPow2(unsigned int num)
+{
+ unsigned n = num > 0 ? num - 1 : 0;
+ n |= n >> 1;
+ n |= n >> 2;
+ n |= n >> 4;
+ n |= n >> 8;
+ n |= n >> 16;
+ n++;
+ return n;
+}
+#endif
+
+static void glnvg__bindTexture(GLNVGcontext* gl, GLuint tex)
+{
+#if NANOVG_GL_USE_STATE_FILTER
+ if (gl->boundTexture != tex) {
+ gl->boundTexture = tex;
+ glBindTexture(GL_TEXTURE_2D, tex);
+ }
+#else
+ glBindTexture(GL_TEXTURE_2D, tex);
+#endif
+}
+
+static void glnvg__stencilMask(GLNVGcontext* gl, GLuint mask)
+{
+#if NANOVG_GL_USE_STATE_FILTER
+ if (gl->stencilMask != mask) {
+ gl->stencilMask = mask;
+ glStencilMask(mask);
+ }
+#else
+ glStencilMask(mask);
+#endif
+}
+
+static void glnvg__stencilFunc(GLNVGcontext* gl, GLenum func, GLint ref, GLuint mask)
+{
+#if NANOVG_GL_USE_STATE_FILTER
+ if ((gl->stencilFunc != func) ||
+ (gl->stencilFuncRef != ref) ||
+ (gl->stencilFuncMask != mask)) {
+
+ gl->stencilFunc = func;
+ gl->stencilFuncRef = ref;
+ gl->stencilFuncMask = mask;
+ glStencilFunc(func, ref, mask);
+ }
+#else
+ glStencilFunc(func, ref, mask);
+#endif
+}
+static void glnvg__blendFuncSeparate(GLNVGcontext* gl, const GLNVGblend* blend)
+{
+#if NANOVG_GL_USE_STATE_FILTER
+ if ((gl->blendFunc.srcRGB != blend->srcRGB) ||
+ (gl->blendFunc.dstRGB != blend->dstRGB) ||
+ (gl->blendFunc.srcAlpha != blend->srcAlpha) ||
+ (gl->blendFunc.dstAlpha != blend->dstAlpha)) {
+
+ gl->blendFunc = *blend;
+ glBlendFuncSeparate(blend->srcRGB, blend->dstRGB, blend->srcAlpha,blend->dstAlpha);
+ }
+#else
+ glBlendFuncSeparate(blend->srcRGB, blend->dstRGB, blend->srcAlpha,blend->dstAlpha);
+#endif
+}
+
+static GLNVGtexture* glnvg__allocTexture(GLNVGcontext* gl)
+{
+ GLNVGtexture* tex = NULL;
+ int i;
+
+ for (i = 0; i < gl->ntextures; i++) {
+ if (gl->textures[i].id == 0) {
+ tex = &gl->textures[i];
+ break;
+ }
+ }
+ if (tex == NULL) {
+ if (gl->ntextures+1 > gl->ctextures) {
+ GLNVGtexture* textures;
+ int ctextures = glnvg__maxi(gl->ntextures+1, 4) + gl->ctextures/2; // 1.5x Overallocate
+ textures = (GLNVGtexture*)realloc(gl->textures, sizeof(GLNVGtexture)*ctextures);
+ if (textures == NULL) return NULL;
+ gl->textures = textures;
+ gl->ctextures = ctextures;
+ }
+ tex = &gl->textures[gl->ntextures++];
+ }
+
+ memset(tex, 0, sizeof(*tex));
+ tex->id = ++gl->textureId;
+
+ return tex;
+}
+
+static GLNVGtexture* glnvg__findTexture(GLNVGcontext* gl, int id)
+{
+ int i;
+ for (i = 0; i < gl->ntextures; i++)
+ if (gl->textures[i].id == id)
+ return &gl->textures[i];
+ return NULL;
+}
+
+static int glnvg__deleteTexture(GLNVGcontext* gl, int id)
+{
+ int i;
+ for (i = 0; i < gl->ntextures; i++) {
+ if (gl->textures[i].id == id) {
+ if (gl->textures[i].tex != 0 && (gl->textures[i].flags & NVG_IMAGE_NODELETE) == 0)
+ glDeleteTextures(1, &gl->textures[i].tex);
+ memset(&gl->textures[i], 0, sizeof(gl->textures[i]));
+ return 1;
+ }
+ }
+ return 0;
+}
+
+static void glnvg__dumpShaderError(GLuint shader, const char* name, const char* type)
+{
+ GLchar str[512+1];
+ GLsizei len = 0;
+ glGetShaderInfoLog(shader, 512, &len, str);
+ if (len > 512) len = 512;
+ str[len] = '\0';
+ printf("Shader %s/%s error:\n%s\n", name, type, str);
+}
+
+static void glnvg__dumpProgramError(GLuint prog, const char* name)
+{
+ GLchar str[512+1];
+ GLsizei len = 0;
+ glGetProgramInfoLog(prog, 512, &len, str);
+ if (len > 512) len = 512;
+ str[len] = '\0';
+ printf("Program %s error:\n%s\n", name, str);
+}
+
+static void glnvg__checkError(GLNVGcontext* gl, const char* str)
+{
+ GLenum err;
+ if ((gl->flags & NVG_DEBUG) == 0) return;
+ err = glGetError();
+ if (err != GL_NO_ERROR) {
+ printf("Error %08x after %s\n", err, str);
+ return;
+ }
+}
+
+static int glnvg__createShader(GLNVGshader* shader, const char* name, const char* header, const char* opts, const char* vshader, const char* fshader)
+{
+ GLint status;
+ GLuint prog, vert, frag;
+ const char* str[3];
+ str[0] = header;
+ str[1] = opts != NULL ? opts : "";
+
+ memset(shader, 0, sizeof(*shader));
+
+ prog = glCreateProgram();
+ vert = glCreateShader(GL_VERTEX_SHADER);
+ frag = glCreateShader(GL_FRAGMENT_SHADER);
+ str[2] = vshader;
+ glShaderSource(vert, 3, str, 0);
+ str[2] = fshader;
+ glShaderSource(frag, 3, str, 0);
+
+ glCompileShader(vert);
+ glGetShaderiv(vert, GL_COMPILE_STATUS, &status);
+ if (status != GL_TRUE) {
+ glnvg__dumpShaderError(vert, name, "vert");
+ return 0;
+ }
+
+ glCompileShader(frag);
+ glGetShaderiv(frag, GL_COMPILE_STATUS, &status);
+ if (status != GL_TRUE) {
+ glnvg__dumpShaderError(frag, name, "frag");
+ return 0;
+ }
+
+ glAttachShader(prog, vert);
+ glAttachShader(prog, frag);
+
+ glBindAttribLocation(prog, 0, "vertex");
+ glBindAttribLocation(prog, 1, "tcoord");
+
+ glLinkProgram(prog);
+ glGetProgramiv(prog, GL_LINK_STATUS, &status);
+ if (status != GL_TRUE) {
+ glnvg__dumpProgramError(prog, name);
+ return 0;
+ }
+
+ shader->prog = prog;
+ shader->vert = vert;
+ shader->frag = frag;
+
+ return 1;
+}
+
+static void glnvg__deleteShader(GLNVGshader* shader)
+{
+ if (shader->prog != 0)
+ glDeleteProgram(shader->prog);
+ if (shader->vert != 0)
+ glDeleteShader(shader->vert);
+ if (shader->frag != 0)
+ glDeleteShader(shader->frag);
+}
+
+static void glnvg__getUniforms(GLNVGshader* shader)
+{
+ shader->loc[GLNVG_LOC_VIEWSIZE] = glGetUniformLocation(shader->prog, "viewSize");
+ shader->loc[GLNVG_LOC_TEX] = glGetUniformLocation(shader->prog, "tex");
+
+#if NANOVG_GL_USE_UNIFORMBUFFER
+ shader->loc[GLNVG_LOC_FRAG] = glGetUniformBlockIndex(shader->prog, "frag");
+#else
+ shader->loc[GLNVG_LOC_FRAG] = glGetUniformLocation(shader->prog, "frag");
+#endif
+}
+
+static int glnvg__renderCreateTexture(void* uptr, int type, int w, int h, int imageFlags, const unsigned char* data);
+
+static int glnvg__renderCreate(void* uptr)
+{
+ GLNVGcontext* gl = (GLNVGcontext*)uptr;
+ int align = 4;
+
+ // TODO: mediump float may not be enough for GLES2 in iOS.
+ // see the following discussion: https://github.com/memononen/nanovg/issues/46
+ static const char* shaderHeader =
+#if defined NANOVG_GL2
+ "#define NANOVG_GL2 1\n"
+#elif defined NANOVG_GL3
+ "#version 150 core\n"
+ "#define NANOVG_GL3 1\n"
+#elif defined NANOVG_GLES2
+ "#version 100\n"
+ "#define NANOVG_GL2 1\n"
+#elif defined NANOVG_GLES3
+ "#version 300 es\n"
+ "#define NANOVG_GL3 1\n"
+#endif
+
+#if NANOVG_GL_USE_UNIFORMBUFFER
+ "#define USE_UNIFORMBUFFER 1\n"
+#else
+ "#define UNIFORMARRAY_SIZE 11\n"
+#endif
+ "\n";
+
+ static const char* fillVertShader =
+ "#ifdef NANOVG_GL3\n"
+ " uniform vec2 viewSize;\n"
+ " in vec2 vertex;\n"
+ " in vec2 tcoord;\n"
+ " out vec2 ftcoord;\n"
+ " out vec2 fpos;\n"
+ "#else\n"
+ " uniform vec2 viewSize;\n"
+ " attribute vec2 vertex;\n"
+ " attribute vec2 tcoord;\n"
+ " varying vec2 ftcoord;\n"
+ " varying vec2 fpos;\n"
+ "#endif\n"
+ "void main(void) {\n"
+ " ftcoord = tcoord;\n"
+ " fpos = vertex;\n"
+ " gl_Position = vec4(2.0*vertex.x/viewSize.x - 1.0, 1.0 - 2.0*vertex.y/viewSize.y, 0, 1);\n"
+ "}\n";
+
+ static const char* fillFragShader =
+ "#ifdef GL_ES\n"
+ "#if defined(GL_FRAGMENT_PRECISION_HIGH) || defined(NANOVG_GL3)\n"
+ " precision highp float;\n"
+ "#else\n"
+ " precision mediump float;\n"
+ "#endif\n"
+ "#endif\n"
+ "#ifdef NANOVG_GL3\n"
+ "#ifdef USE_UNIFORMBUFFER\n"
+ " layout(std140) uniform frag {\n"
+ " mat3 scissorMat;\n"
+ " mat3 paintMat;\n"
+ " vec4 innerCol;\n"
+ " vec4 outerCol;\n"
+ " vec2 scissorExt;\n"
+ " vec2 scissorScale;\n"
+ " vec2 extent;\n"
+ " float radius;\n"
+ " float feather;\n"
+ " float strokeMult;\n"
+ " float strokeThr;\n"
+ " int texType;\n"
+ " int type;\n"
+ " };\n"
+ "#else\n" // NANOVG_GL3 && !USE_UNIFORMBUFFER
+ " uniform vec4 frag[UNIFORMARRAY_SIZE];\n"
+ "#endif\n"
+ " uniform sampler2D tex;\n"
+ " in vec2 ftcoord;\n"
+ " in vec2 fpos;\n"
+ " out vec4 outColor;\n"
+ "#else\n" // !NANOVG_GL3
+ " uniform vec4 frag[UNIFORMARRAY_SIZE];\n"
+ " uniform sampler2D tex;\n"
+ " varying vec2 ftcoord;\n"
+ " varying vec2 fpos;\n"
+ "#endif\n"
+ "#ifndef USE_UNIFORMBUFFER\n"
+ " #define scissorMat mat3(frag[0].xyz, frag[1].xyz, frag[2].xyz)\n"
+ " #define paintMat mat3(frag[3].xyz, frag[4].xyz, frag[5].xyz)\n"
+ " #define innerCol frag[6]\n"
+ " #define outerCol frag[7]\n"
+ " #define scissorExt frag[8].xy\n"
+ " #define scissorScale frag[8].zw\n"
+ " #define extent frag[9].xy\n"
+ " #define radius frag[9].z\n"
+ " #define feather frag[9].w\n"
+ " #define strokeMult frag[10].x\n"
+ " #define strokeThr frag[10].y\n"
+ " #define texType int(frag[10].z)\n"
+ " #define type int(frag[10].w)\n"
+ "#endif\n"
+ "\n"
+ "float sdroundrect(vec2 pt, vec2 ext, float rad) {\n"
+ " vec2 ext2 = ext - vec2(rad,rad);\n"
+ " vec2 d = abs(pt) - ext2;\n"
+ " return min(max(d.x,d.y),0.0) + length(max(d,0.0)) - rad;\n"
+ "}\n"
+ "\n"
+ "// Scissoring\n"
+ "float scissorMask(vec2 p) {\n"
+ " vec2 sc = (abs((scissorMat * vec3(p,1.0)).xy) - scissorExt);\n"
+ " sc = vec2(0.5,0.5) - sc * scissorScale;\n"
+ " return clamp(sc.x,0.0,1.0) * clamp(sc.y,0.0,1.0);\n"
+ "}\n"
+ "#ifdef EDGE_AA\n"
+ "// Stroke - from [0..1] to clipped pyramid, where the slope is 1px.\n"
+ "float strokeMask() {\n"
+ " return min(1.0, (1.0-abs(ftcoord.x*2.0-1.0))*strokeMult) * min(1.0, ftcoord.y);\n"
+ "}\n"
+ "#endif\n"
+ "\n"
+ "void main(void) {\n"
+ " vec4 result;\n"
+ " float scissor = scissorMask(fpos);\n"
+ "#ifdef EDGE_AA\n"
+ " float strokeAlpha = strokeMask();\n"
+ " if (strokeAlpha < strokeThr) discard;\n"
+ "#else\n"
+ " float strokeAlpha = 1.0;\n"
+ "#endif\n"
+ " if (type == 0) { // Gradient\n"
+ " // Calculate gradient color using box gradient\n"
+ " vec2 pt = (paintMat * vec3(fpos,1.0)).xy;\n"
+ " float d = clamp((sdroundrect(pt, extent, radius) + feather*0.5) / feather, 0.0, 1.0);\n"
+ " vec4 color = mix(innerCol,outerCol,d);\n"
+ " // Combine alpha\n"
+ " color *= strokeAlpha * scissor;\n"
+ " result = color;\n"
+ " } else if (type == 1) { // Image\n"
+ " // Calculate color fron texture\n"
+ " vec2 pt = (paintMat * vec3(fpos,1.0)).xy / extent;\n"
+ "#ifdef NANOVG_GL3\n"
+ " vec4 color = texture(tex, pt);\n"
+ "#else\n"
+ " vec4 color = texture2D(tex, pt);\n"
+ "#endif\n"
+ " if (texType == 1) color = vec4(color.xyz*color.w,color.w);"
+ " if (texType == 2) color = vec4(color.x);"
+ " // Apply color tint and alpha.\n"
+ " color *= innerCol;\n"
+ " // Combine alpha\n"
+ " color *= strokeAlpha * scissor;\n"
+ " result = color;\n"
+ " } else if (type == 2) { // Stencil fill\n"
+ " result = vec4(1,1,1,1);\n"
+ " } else if (type == 3) { // Textured tris\n"
+ "#ifdef NANOVG_GL3\n"
+ " vec4 color = texture(tex, ftcoord);\n"
+ "#else\n"
+ " vec4 color = texture2D(tex, ftcoord);\n"
+ "#endif\n"
+ " if (texType == 1) color = vec4(color.xyz*color.w,color.w);"
+ " if (texType == 2) color = vec4(color.x);"
+ " color *= scissor;\n"
+ " result = color * innerCol;\n"
+ " }\n"
+ "#ifdef NANOVG_GL3\n"
+ " outColor = result;\n"
+ "#else\n"
+ " gl_FragColor = result;\n"
+ "#endif\n"
+ "}\n";
+
+ glnvg__checkError(gl, "init");
+
+ if (gl->flags & NVG_ANTIALIAS) {
+ if (glnvg__createShader(&gl->shader, "shader", shaderHeader, "#define EDGE_AA 1\n", fillVertShader, fillFragShader) == 0)
+ return 0;
+ } else {
+ if (glnvg__createShader(&gl->shader, "shader", shaderHeader, NULL, fillVertShader, fillFragShader) == 0)
+ return 0;
+ }
+
+ glnvg__checkError(gl, "uniform locations");
+ glnvg__getUniforms(&gl->shader);
+
+ // Create dynamic vertex array
+#if defined NANOVG_GL3
+ glGenVertexArrays(1, &gl->vertArr);
+#endif
+ glGenBuffers(1, &gl->vertBuf);
+
+#if NANOVG_GL_USE_UNIFORMBUFFER
+ // Create UBOs
+ glUniformBlockBinding(gl->shader.prog, gl->shader.loc[GLNVG_LOC_FRAG], GLNVG_FRAG_BINDING);
+ glGenBuffers(1, &gl->fragBuf);
+ glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &align);
+#endif
+ gl->fragSize = sizeof(GLNVGfragUniforms) + align - sizeof(GLNVGfragUniforms) % align;
+
+ // Some platforms does not allow to have samples to unset textures.
+ // Create empty one which is bound when there's no texture specified.
+ gl->dummyTex = glnvg__renderCreateTexture(gl, NVG_TEXTURE_ALPHA, 1, 1, 0, NULL);
+
+ glnvg__checkError(gl, "create done");
+
+ glFinish();
+
+ return 1;
+}
+
+static int glnvg__renderCreateTexture(void* uptr, int type, int w, int h, int imageFlags, const unsigned char* data)
+{
+ GLNVGcontext* gl = (GLNVGcontext*)uptr;
+ GLNVGtexture* tex = glnvg__allocTexture(gl);
+
+ if (tex == NULL) return 0;
+
+#ifdef NANOVG_GLES2
+ // Check for non-power of 2.
+ if (glnvg__nearestPow2(w) != (unsigned int)w || glnvg__nearestPow2(h) != (unsigned int)h) {
+ // No repeat
+ if ((imageFlags & NVG_IMAGE_REPEATX) != 0 || (imageFlags & NVG_IMAGE_REPEATY) != 0) {
+ printf("Repeat X/Y is not supported for non power-of-two textures (%d x %d)\n", w, h);
+ imageFlags &= ~(NVG_IMAGE_REPEATX | NVG_IMAGE_REPEATY);
+ }
+ // No mips.
+ if (imageFlags & NVG_IMAGE_GENERATE_MIPMAPS) {
+ printf("Mip-maps is not support for non power-of-two textures (%d x %d)\n", w, h);
+ imageFlags &= ~NVG_IMAGE_GENERATE_MIPMAPS;
+ }
+ }
+#endif
+
+ glGenTextures(1, &tex->tex);
+ tex->width = w;
+ tex->height = h;
+ tex->type = type;
+ tex->flags = imageFlags;
+ glnvg__bindTexture(gl, tex->tex);
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT,1);
+#ifndef NANOVG_GLES2
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, tex->width);
+ glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
+#endif
+
+#if defined (NANOVG_GL2)
+ // GL 1.4 and later has support for generating mipmaps using a tex parameter.
+ if (imageFlags & NVG_IMAGE_GENERATE_MIPMAPS) {
+ glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
+ }
+#endif
+
+ if (type == NVG_TEXTURE_RGBA)
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
+ else
+#if defined(NANOVG_GLES2) || defined (NANOVG_GL2)
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, w, h, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
+#elif defined(NANOVG_GLES3)
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_R8, w, h, 0, GL_RED, GL_UNSIGNED_BYTE, data);
+#else
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, w, h, 0, GL_RED, GL_UNSIGNED_BYTE, data);
+#endif
+
+ if (imageFlags & NVG_IMAGE_GENERATE_MIPMAPS) {
+ if (imageFlags & NVG_IMAGE_NEAREST) {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
+ } else {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
+ }
+ } else {
+ if (imageFlags & NVG_IMAGE_NEAREST) {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ } else {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ }
+ }
+
+ if (imageFlags & NVG_IMAGE_NEAREST) {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ } else {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ }
+
+ if (imageFlags & NVG_IMAGE_REPEATX)
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ else
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+
+ if (imageFlags & NVG_IMAGE_REPEATY)
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+ else
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
+#ifndef NANOVG_GLES2
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+ glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
+#endif
+
+ // The new way to build mipmaps on GLES and GL3
+#if !defined(NANOVG_GL2)
+ if (imageFlags & NVG_IMAGE_GENERATE_MIPMAPS) {
+ glGenerateMipmap(GL_TEXTURE_2D);
+ }
+#endif
+
+ glnvg__checkError(gl, "create tex");
+ glnvg__bindTexture(gl, 0);
+
+ return tex->id;
+}
+
+
+static int glnvg__renderDeleteTexture(void* uptr, int image)
+{
+ GLNVGcontext* gl = (GLNVGcontext*)uptr;
+ return glnvg__deleteTexture(gl, image);
+}
+
+static int glnvg__renderUpdateTexture(void* uptr, int image, int x, int y, int w, int h, const unsigned char* data)
+{
+ GLNVGcontext* gl = (GLNVGcontext*)uptr;
+ GLNVGtexture* tex = glnvg__findTexture(gl, image);
+
+ if (tex == NULL) return 0;
+ glnvg__bindTexture(gl, tex->tex);
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT,1);
+
+#ifndef NANOVG_GLES2
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, tex->width);
+ glPixelStorei(GL_UNPACK_SKIP_PIXELS, x);
+ glPixelStorei(GL_UNPACK_SKIP_ROWS, y);
+#else
+ // No support for all of skip, need to update a whole row at a time.
+ if (tex->type == NVG_TEXTURE_RGBA)
+ data += y*tex->width*4;
+ else
+ data += y*tex->width;
+ x = 0;
+ w = tex->width;
+#endif
+
+ if (tex->type == NVG_TEXTURE_RGBA)
+ glTexSubImage2D(GL_TEXTURE_2D, 0, x,y, w,h, GL_RGBA, GL_UNSIGNED_BYTE, data);
+ else
+#if defined(NANOVG_GLES2) || defined(NANOVG_GL2)
+ glTexSubImage2D(GL_TEXTURE_2D, 0, x,y, w,h, GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
+#else
+ glTexSubImage2D(GL_TEXTURE_2D, 0, x,y, w,h, GL_RED, GL_UNSIGNED_BYTE, data);
+#endif
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
+#ifndef NANOVG_GLES2
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+ glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
+#endif
+
+ glnvg__bindTexture(gl, 0);
+
+ return 1;
+}
+
+static int glnvg__renderGetTextureSize(void* uptr, int image, int* w, int* h)
+{
+ GLNVGcontext* gl = (GLNVGcontext*)uptr;
+ GLNVGtexture* tex = glnvg__findTexture(gl, image);
+ if (tex == NULL) return 0;
+ *w = tex->width;
+ *h = tex->height;
+ return 1;
+}
+
+static void glnvg__xformToMat3x4(float* m3, float* t)
+{
+ m3[0] = t[0];
+ m3[1] = t[1];
+ m3[2] = 0.0f;
+ m3[3] = 0.0f;
+ m3[4] = t[2];
+ m3[5] = t[3];
+ m3[6] = 0.0f;
+ m3[7] = 0.0f;
+ m3[8] = t[4];
+ m3[9] = t[5];
+ m3[10] = 1.0f;
+ m3[11] = 0.0f;
+}
+
+static NVGcolor glnvg__premulColor(NVGcolor c)
+{
+ c.r *= c.a;
+ c.g *= c.a;
+ c.b *= c.a;
+ return c;
+}
+
+static int glnvg__convertPaint(GLNVGcontext* gl, GLNVGfragUniforms* frag, NVGpaint* paint,
+ NVGscissor* scissor, float width, float fringe, float strokeThr)
+{
+ GLNVGtexture* tex = NULL;
+ float invxform[6];
+
+ memset(frag, 0, sizeof(*frag));
+
+ frag->innerCol = glnvg__premulColor(paint->innerColor);
+ frag->outerCol = glnvg__premulColor(paint->outerColor);
+
+ if (scissor->extent[0] < -0.5f || scissor->extent[1] < -0.5f) {
+ memset(frag->scissorMat, 0, sizeof(frag->scissorMat));
+ frag->scissorExt[0] = 1.0f;
+ frag->scissorExt[1] = 1.0f;
+ frag->scissorScale[0] = 1.0f;
+ frag->scissorScale[1] = 1.0f;
+ } else {
+ nvgTransformInverse(invxform, scissor->xform);
+ glnvg__xformToMat3x4(frag->scissorMat, invxform);
+ frag->scissorExt[0] = scissor->extent[0];
+ frag->scissorExt[1] = scissor->extent[1];
+ frag->scissorScale[0] = sqrtf(scissor->xform[0]*scissor->xform[0] + scissor->xform[2]*scissor->xform[2]) / fringe;
+ frag->scissorScale[1] = sqrtf(scissor->xform[1]*scissor->xform[1] + scissor->xform[3]*scissor->xform[3]) / fringe;
+ }
+
+ memcpy(frag->extent, paint->extent, sizeof(frag->extent));
+ frag->strokeMult = (width*0.5f + fringe*0.5f) / fringe;
+ frag->strokeThr = strokeThr;
+
+ if (paint->image != 0) {
+ tex = glnvg__findTexture(gl, paint->image);
+ if (tex == NULL) return 0;
+ if ((tex->flags & NVG_IMAGE_FLIPY) != 0) {
+ float m1[6], m2[6];
+ nvgTransformTranslate(m1, 0.0f, frag->extent[1] * 0.5f);
+ nvgTransformMultiply(m1, paint->xform);
+ nvgTransformScale(m2, 1.0f, -1.0f);
+ nvgTransformMultiply(m2, m1);
+ nvgTransformTranslate(m1, 0.0f, -frag->extent[1] * 0.5f);
+ nvgTransformMultiply(m1, m2);
+ nvgTransformInverse(invxform, m1);
+ } else {
+ nvgTransformInverse(invxform, paint->xform);
+ }
+ frag->type = NSVG_SHADER_FILLIMG;
+
+ #if NANOVG_GL_USE_UNIFORMBUFFER
+ if (tex->type == NVG_TEXTURE_RGBA)
+ frag->texType = (tex->flags & NVG_IMAGE_PREMULTIPLIED) ? 0 : 1;
+ else
+ frag->texType = 2;
+ #else
+ if (tex->type == NVG_TEXTURE_RGBA)
+ frag->texType = (tex->flags & NVG_IMAGE_PREMULTIPLIED) ? 0.0f : 1.0f;
+ else
+ frag->texType = 2.0f;
+ #endif
+// printf("frag->texType = %d\n", frag->texType);
+ } else {
+ frag->type = NSVG_SHADER_FILLGRAD;
+ frag->radius = paint->radius;
+ frag->feather = paint->feather;
+ nvgTransformInverse(invxform, paint->xform);
+ }
+
+ glnvg__xformToMat3x4(frag->paintMat, invxform);
+
+ return 1;
+}
+
+static GLNVGfragUniforms* nvg__fragUniformPtr(GLNVGcontext* gl, int i);
+
+static void glnvg__setUniforms(GLNVGcontext* gl, int uniformOffset, int image)
+{
+ GLNVGtexture* tex = NULL;
+#if NANOVG_GL_USE_UNIFORMBUFFER
+ glBindBufferRange(GL_UNIFORM_BUFFER, GLNVG_FRAG_BINDING, gl->fragBuf, uniformOffset, sizeof(GLNVGfragUniforms));
+#else
+ GLNVGfragUniforms* frag = nvg__fragUniformPtr(gl, uniformOffset);
+ glUniform4fv(gl->shader.loc[GLNVG_LOC_FRAG], NANOVG_GL_UNIFORMARRAY_SIZE, &(frag->uniformArray[0][0]));
+#endif
+
+ if (image != 0) {
+ tex = glnvg__findTexture(gl, image);
+ }
+ // If no image is set, use empty texture
+ if (tex == NULL) {
+ tex = glnvg__findTexture(gl, gl->dummyTex);
+ }
+ glnvg__bindTexture(gl, tex != NULL ? tex->tex : 0);
+ glnvg__checkError(gl, "tex paint tex");
+}
+
+static void glnvg__renderViewport(void* uptr, float width, float height, float devicePixelRatio)
+{
+ NVG_NOTUSED(devicePixelRatio);
+ GLNVGcontext* gl = (GLNVGcontext*)uptr;
+ gl->view[0] = width;
+ gl->view[1] = height;
+}
+
+static void glnvg__fill(GLNVGcontext* gl, GLNVGcall* call)
+{
+ GLNVGpath* paths = &gl->paths[call->pathOffset];
+ int i, npaths = call->pathCount;
+
+ // Draw shapes
+ glEnable(GL_STENCIL_TEST);
+ glnvg__stencilMask(gl, 0xff);
+ glnvg__stencilFunc(gl, GL_ALWAYS, 0, 0xff);
+ glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
+
+ // set bindpoint for solid loc
+ glnvg__setUniforms(gl, call->uniformOffset, 0);
+ glnvg__checkError(gl, "fill simple");
+
+ glStencilOpSeparate(GL_FRONT, GL_KEEP, GL_KEEP, GL_INCR_WRAP);
+ glStencilOpSeparate(GL_BACK, GL_KEEP, GL_KEEP, GL_DECR_WRAP);
+ glDisable(GL_CULL_FACE);
+ for (i = 0; i < npaths; i++)
+ glDrawArrays(GL_TRIANGLE_FAN, paths[i].fillOffset, paths[i].fillCount);
+ glEnable(GL_CULL_FACE);
+
+ // Draw anti-aliased pixels
+ glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+
+ glnvg__setUniforms(gl, call->uniformOffset + gl->fragSize, call->image);
+ glnvg__checkError(gl, "fill fill");
+
+ if (gl->flags & NVG_ANTIALIAS) {
+ glnvg__stencilFunc(gl, GL_EQUAL, 0x00, 0xff);
+ glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
+ // Draw fringes
+ for (i = 0; i < npaths; i++)
+ glDrawArrays(GL_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
+ }
+
+ // Draw fill
+ glnvg__stencilFunc(gl, GL_NOTEQUAL, 0x0, 0xff);
+ glStencilOp(GL_ZERO, GL_ZERO, GL_ZERO);
+ glDrawArrays(GL_TRIANGLE_STRIP, call->triangleOffset, call->triangleCount);
+
+ glDisable(GL_STENCIL_TEST);
+}
+
+static void glnvg__convexFill(GLNVGcontext* gl, GLNVGcall* call)
+{
+ GLNVGpath* paths = &gl->paths[call->pathOffset];
+ int i, npaths = call->pathCount;
+
+ glnvg__setUniforms(gl, call->uniformOffset, call->image);
+ glnvg__checkError(gl, "convex fill");
+
+ for (i = 0; i < npaths; i++) {
+ glDrawArrays(GL_TRIANGLE_FAN, paths[i].fillOffset, paths[i].fillCount);
+ // Draw fringes
+ if (paths[i].strokeCount > 0) {
+ glDrawArrays(GL_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
+ }
+ }
+}
+
+static void glnvg__stroke(GLNVGcontext* gl, GLNVGcall* call)
+{
+ GLNVGpath* paths = &gl->paths[call->pathOffset];
+ int npaths = call->pathCount, i;
+
+ if (gl->flags & NVG_STENCIL_STROKES) {
+
+ glEnable(GL_STENCIL_TEST);
+ glnvg__stencilMask(gl, 0xff);
+
+ // Fill the stroke base without overlap
+ glnvg__stencilFunc(gl, GL_EQUAL, 0x0, 0xff);
+ glStencilOp(GL_KEEP, GL_KEEP, GL_INCR);
+ glnvg__setUniforms(gl, call->uniformOffset + gl->fragSize, call->image);
+ glnvg__checkError(gl, "stroke fill 0");
+ for (i = 0; i < npaths; i++)
+ glDrawArrays(GL_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
+
+ // Draw anti-aliased pixels.
+ glnvg__setUniforms(gl, call->uniformOffset, call->image);
+ glnvg__stencilFunc(gl, GL_EQUAL, 0x00, 0xff);
+ glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
+ for (i = 0; i < npaths; i++)
+ glDrawArrays(GL_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
+
+ // Clear stencil buffer.
+ glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
+ glnvg__stencilFunc(gl, GL_ALWAYS, 0x0, 0xff);
+ glStencilOp(GL_ZERO, GL_ZERO, GL_ZERO);
+ glnvg__checkError(gl, "stroke fill 1");
+ for (i = 0; i < npaths; i++)
+ glDrawArrays(GL_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
+ glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+
+ glDisable(GL_STENCIL_TEST);
+
+// glnvg__convertPaint(gl, nvg__fragUniformPtr(gl, call->uniformOffset + gl->fragSize), paint, scissor, strokeWidth, fringe, 1.0f - 0.5f/255.0f);
+
+ } else {
+ glnvg__setUniforms(gl, call->uniformOffset, call->image);
+ glnvg__checkError(gl, "stroke fill");
+ // Draw Strokes
+ for (i = 0; i < npaths; i++)
+ glDrawArrays(GL_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
+ }
+}
+
+static void glnvg__triangles(GLNVGcontext* gl, GLNVGcall* call)
+{
+ glnvg__setUniforms(gl, call->uniformOffset, call->image);
+ glnvg__checkError(gl, "triangles fill");
+
+ glDrawArrays(GL_TRIANGLES, call->triangleOffset, call->triangleCount);
+}
+
+static void glnvg__renderCancel(void* uptr) {
+ GLNVGcontext* gl = (GLNVGcontext*)uptr;
+ gl->nverts = 0;
+ gl->npaths = 0;
+ gl->ncalls = 0;
+ gl->nuniforms = 0;
+}
+
+static GLenum glnvg_convertBlendFuncFactor(int factor)
+{
+ if (factor == NVG_ZERO)
+ return GL_ZERO;
+ if (factor == NVG_ONE)
+ return GL_ONE;
+ if (factor == NVG_SRC_COLOR)
+ return GL_SRC_COLOR;
+ if (factor == NVG_ONE_MINUS_SRC_COLOR)
+ return GL_ONE_MINUS_SRC_COLOR;
+ if (factor == NVG_DST_COLOR)
+ return GL_DST_COLOR;
+ if (factor == NVG_ONE_MINUS_DST_COLOR)
+ return GL_ONE_MINUS_DST_COLOR;
+ if (factor == NVG_SRC_ALPHA)
+ return GL_SRC_ALPHA;
+ if (factor == NVG_ONE_MINUS_SRC_ALPHA)
+ return GL_ONE_MINUS_SRC_ALPHA;
+ if (factor == NVG_DST_ALPHA)
+ return GL_DST_ALPHA;
+ if (factor == NVG_ONE_MINUS_DST_ALPHA)
+ return GL_ONE_MINUS_DST_ALPHA;
+ if (factor == NVG_SRC_ALPHA_SATURATE)
+ return GL_SRC_ALPHA_SATURATE;
+ return GL_INVALID_ENUM;
+}
+
+static GLNVGblend glnvg__blendCompositeOperation(NVGcompositeOperationState op)
+{
+ GLNVGblend blend;
+ blend.srcRGB = glnvg_convertBlendFuncFactor(op.srcRGB);
+ blend.dstRGB = glnvg_convertBlendFuncFactor(op.dstRGB);
+ blend.srcAlpha = glnvg_convertBlendFuncFactor(op.srcAlpha);
+ blend.dstAlpha = glnvg_convertBlendFuncFactor(op.dstAlpha);
+ if (blend.srcRGB == GL_INVALID_ENUM || blend.dstRGB == GL_INVALID_ENUM || blend.srcAlpha == GL_INVALID_ENUM || blend.dstAlpha == GL_INVALID_ENUM)
+ {
+ blend.srcRGB = GL_ONE;
+ blend.dstRGB = GL_ONE_MINUS_SRC_ALPHA;
+ blend.srcAlpha = GL_ONE;
+ blend.dstAlpha = GL_ONE_MINUS_SRC_ALPHA;
+ }
+ return blend;
+}
+
+static void glnvg__renderFlush(void* uptr)
+{
+ GLNVGcontext* gl = (GLNVGcontext*)uptr;
+ int i;
+
+ if (gl->ncalls > 0) {
+
+ // Setup require GL state.
+ glUseProgram(gl->shader.prog);
+
+ glEnable(GL_CULL_FACE);
+ glCullFace(GL_BACK);
+ glFrontFace(GL_CCW);
+ glEnable(GL_BLEND);
+ glDisable(GL_DEPTH_TEST);
+ glDisable(GL_SCISSOR_TEST);
+ glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+ glStencilMask(0xffffffff);
+ glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
+ glStencilFunc(GL_ALWAYS, 0, 0xffffffff);
+ glActiveTexture(GL_TEXTURE0);
+ glBindTexture(GL_TEXTURE_2D, 0);
+ #if NANOVG_GL_USE_STATE_FILTER
+ gl->boundTexture = 0;
+ gl->stencilMask = 0xffffffff;
+ gl->stencilFunc = GL_ALWAYS;
+ gl->stencilFuncRef = 0;
+ gl->stencilFuncMask = 0xffffffff;
+ gl->blendFunc.srcRGB = GL_INVALID_ENUM;
+ gl->blendFunc.srcAlpha = GL_INVALID_ENUM;
+ gl->blendFunc.dstRGB = GL_INVALID_ENUM;
+ gl->blendFunc.dstAlpha = GL_INVALID_ENUM;
+ #endif
+
+#if NANOVG_GL_USE_UNIFORMBUFFER
+ // Upload ubo for frag shaders
+ glBindBuffer(GL_UNIFORM_BUFFER, gl->fragBuf);
+ glBufferData(GL_UNIFORM_BUFFER, gl->nuniforms * gl->fragSize, gl->uniforms, GL_STREAM_DRAW);
+#endif
+
+ // Upload vertex data
+#if defined NANOVG_GL3
+ glBindVertexArray(gl->vertArr);
+#endif
+ glBindBuffer(GL_ARRAY_BUFFER, gl->vertBuf);
+ glBufferData(GL_ARRAY_BUFFER, gl->nverts * sizeof(NVGvertex), gl->verts, GL_STREAM_DRAW);
+ glEnableVertexAttribArray(0);
+ glEnableVertexAttribArray(1);
+ glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(NVGvertex), (const GLvoid*)(size_t)0);
+ glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(NVGvertex), (const GLvoid*)(0 + 2*sizeof(float)));
+
+ // Set view and texture just once per frame.
+ glUniform1i(gl->shader.loc[GLNVG_LOC_TEX], 0);
+ glUniform2fv(gl->shader.loc[GLNVG_LOC_VIEWSIZE], 1, gl->view);
+
+#if NANOVG_GL_USE_UNIFORMBUFFER
+ glBindBuffer(GL_UNIFORM_BUFFER, gl->fragBuf);
+#endif
+
+ for (i = 0; i < gl->ncalls; i++) {
+ GLNVGcall* call = &gl->calls[i];
+ glnvg__blendFuncSeparate(gl,&call->blendFunc);
+ if (call->type == GLNVG_FILL)
+ glnvg__fill(gl, call);
+ else if (call->type == GLNVG_CONVEXFILL)
+ glnvg__convexFill(gl, call);
+ else if (call->type == GLNVG_STROKE)
+ glnvg__stroke(gl, call);
+ else if (call->type == GLNVG_TRIANGLES)
+ glnvg__triangles(gl, call);
+ }
+
+ glDisableVertexAttribArray(0);
+ glDisableVertexAttribArray(1);
+#if defined NANOVG_GL3
+ glBindVertexArray(0);
+#endif
+ glDisable(GL_CULL_FACE);
+ glBindBuffer(GL_ARRAY_BUFFER, 0);
+ glUseProgram(0);
+ glnvg__bindTexture(gl, 0);
+ }
+
+ // Reset calls
+ gl->nverts = 0;
+ gl->npaths = 0;
+ gl->ncalls = 0;
+ gl->nuniforms = 0;
+}
+
+static int glnvg__maxVertCount(const NVGpath* paths, int npaths)
+{
+ int i, count = 0;
+ for (i = 0; i < npaths; i++) {
+ count += paths[i].nfill;
+ count += paths[i].nstroke;
+ }
+ return count;
+}
+
+static GLNVGcall* glnvg__allocCall(GLNVGcontext* gl)
+{
+ GLNVGcall* ret = NULL;
+ if (gl->ncalls+1 > gl->ccalls) {
+ GLNVGcall* calls;
+ int ccalls = glnvg__maxi(gl->ncalls+1, 128) + gl->ccalls/2; // 1.5x Overallocate
+ calls = (GLNVGcall*)realloc(gl->calls, sizeof(GLNVGcall) * ccalls);
+ if (calls == NULL) return NULL;
+ gl->calls = calls;
+ gl->ccalls = ccalls;
+ }
+ ret = &gl->calls[gl->ncalls++];
+ memset(ret, 0, sizeof(GLNVGcall));
+ return ret;
+}
+
+static int glnvg__allocPaths(GLNVGcontext* gl, int n)
+{
+ int ret = 0;
+ if (gl->npaths+n > gl->cpaths) {
+ GLNVGpath* paths;
+ int cpaths = glnvg__maxi(gl->npaths + n, 128) + gl->cpaths/2; // 1.5x Overallocate
+ paths = (GLNVGpath*)realloc(gl->paths, sizeof(GLNVGpath) * cpaths);
+ if (paths == NULL) return -1;
+ gl->paths = paths;
+ gl->cpaths = cpaths;
+ }
+ ret = gl->npaths;
+ gl->npaths += n;
+ return ret;
+}
+
+static int glnvg__allocVerts(GLNVGcontext* gl, int n)
+{
+ int ret = 0;
+ if (gl->nverts+n > gl->cverts) {
+ NVGvertex* verts;
+ int cverts = glnvg__maxi(gl->nverts + n, 4096) + gl->cverts/2; // 1.5x Overallocate
+ verts = (NVGvertex*)realloc(gl->verts, sizeof(NVGvertex) * cverts);
+ if (verts == NULL) return -1;
+ gl->verts = verts;
+ gl->cverts = cverts;
+ }
+ ret = gl->nverts;
+ gl->nverts += n;
+ return ret;
+}
+
+static int glnvg__allocFragUniforms(GLNVGcontext* gl, int n)
+{
+ int ret = 0, structSize = gl->fragSize;
+ if (gl->nuniforms+n > gl->cuniforms) {
+ unsigned char* uniforms;
+ int cuniforms = glnvg__maxi(gl->nuniforms+n, 128) + gl->cuniforms/2; // 1.5x Overallocate
+ uniforms = (unsigned char*)realloc(gl->uniforms, structSize * cuniforms);
+ if (uniforms == NULL) return -1;
+ gl->uniforms = uniforms;
+ gl->cuniforms = cuniforms;
+ }
+ ret = gl->nuniforms * structSize;
+ gl->nuniforms += n;
+ return ret;
+}
+
+static GLNVGfragUniforms* nvg__fragUniformPtr(GLNVGcontext* gl, int i)
+{
+ return (GLNVGfragUniforms*)&gl->uniforms[i];
+}
+
+static void glnvg__vset(NVGvertex* vtx, float x, float y, float u, float v)
+{
+ vtx->x = x;
+ vtx->y = y;
+ vtx->u = u;
+ vtx->v = v;
+}
+
+static void glnvg__renderFill(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, float fringe,
+ const float* bounds, const NVGpath* paths, int npaths)
+{
+ GLNVGcontext* gl = (GLNVGcontext*)uptr;
+ GLNVGcall* call = glnvg__allocCall(gl);
+ NVGvertex* quad;
+ GLNVGfragUniforms* frag;
+ int i, maxverts, offset;
+
+ if (call == NULL) return;
+
+ call->type = GLNVG_FILL;
+ call->triangleCount = 4;
+ call->pathOffset = glnvg__allocPaths(gl, npaths);
+ if (call->pathOffset == -1) goto error;
+ call->pathCount = npaths;
+ call->image = paint->image;
+ call->blendFunc = glnvg__blendCompositeOperation(compositeOperation);
+
+ if (npaths == 1 && paths[0].convex)
+ {
+ call->type = GLNVG_CONVEXFILL;
+ call->triangleCount = 0; // Bounding box fill quad not needed for convex fill
+ }
+
+ // Allocate vertices for all the paths.
+ maxverts = glnvg__maxVertCount(paths, npaths) + call->triangleCount;
+ offset = glnvg__allocVerts(gl, maxverts);
+ if (offset == -1) goto error;
+
+ for (i = 0; i < npaths; i++) {
+ GLNVGpath* copy = &gl->paths[call->pathOffset + i];
+ const NVGpath* path = &paths[i];
+ memset(copy, 0, sizeof(GLNVGpath));
+ if (path->nfill > 0) {
+ copy->fillOffset = offset;
+ copy->fillCount = path->nfill;
+ memcpy(&gl->verts[offset], path->fill, sizeof(NVGvertex) * path->nfill);
+ offset += path->nfill;
+ }
+ if (path->nstroke > 0) {
+ copy->strokeOffset = offset;
+ copy->strokeCount = path->nstroke;
+ memcpy(&gl->verts[offset], path->stroke, sizeof(NVGvertex) * path->nstroke);
+ offset += path->nstroke;
+ }
+ }
+
+ // Setup uniforms for draw calls
+ if (call->type == GLNVG_FILL) {
+ // Quad
+ call->triangleOffset = offset;
+ quad = &gl->verts[call->triangleOffset];
+ glnvg__vset(&quad[0], bounds[2], bounds[3], 0.5f, 1.0f);
+ glnvg__vset(&quad[1], bounds[2], bounds[1], 0.5f, 1.0f);
+ glnvg__vset(&quad[2], bounds[0], bounds[3], 0.5f, 1.0f);
+ glnvg__vset(&quad[3], bounds[0], bounds[1], 0.5f, 1.0f);
+
+ call->uniformOffset = glnvg__allocFragUniforms(gl, 2);
+ if (call->uniformOffset == -1) goto error;
+ // Simple shader for stencil
+ frag = nvg__fragUniformPtr(gl, call->uniformOffset);
+ memset(frag, 0, sizeof(*frag));
+ frag->strokeThr = -1.0f;
+ frag->type = NSVG_SHADER_SIMPLE;
+ // Fill shader
+ glnvg__convertPaint(gl, nvg__fragUniformPtr(gl, call->uniformOffset + gl->fragSize), paint, scissor, fringe, fringe, -1.0f);
+ } else {
+ call->uniformOffset = glnvg__allocFragUniforms(gl, 1);
+ if (call->uniformOffset == -1) goto error;
+ // Fill shader
+ glnvg__convertPaint(gl, nvg__fragUniformPtr(gl, call->uniformOffset), paint, scissor, fringe, fringe, -1.0f);
+ }
+
+ return;
+
+error:
+ // We get here if call alloc was ok, but something else is not.
+ // Roll back the last call to prevent drawing it.
+ if (gl->ncalls > 0) gl->ncalls--;
+}
+
+static void glnvg__renderStroke(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, float fringe,
+ float strokeWidth, const NVGpath* paths, int npaths)
+{
+ GLNVGcontext* gl = (GLNVGcontext*)uptr;
+ GLNVGcall* call = glnvg__allocCall(gl);
+ int i, maxverts, offset;
+
+ if (call == NULL) return;
+
+ call->type = GLNVG_STROKE;
+ call->pathOffset = glnvg__allocPaths(gl, npaths);
+ if (call->pathOffset == -1) goto error;
+ call->pathCount = npaths;
+ call->image = paint->image;
+ call->blendFunc = glnvg__blendCompositeOperation(compositeOperation);
+
+ // Allocate vertices for all the paths.
+ maxverts = glnvg__maxVertCount(paths, npaths);
+ offset = glnvg__allocVerts(gl, maxverts);
+ if (offset == -1) goto error;
+
+ for (i = 0; i < npaths; i++) {
+ GLNVGpath* copy = &gl->paths[call->pathOffset + i];
+ const NVGpath* path = &paths[i];
+ memset(copy, 0, sizeof(GLNVGpath));
+ if (path->nstroke) {
+ copy->strokeOffset = offset;
+ copy->strokeCount = path->nstroke;
+ memcpy(&gl->verts[offset], path->stroke, sizeof(NVGvertex) * path->nstroke);
+ offset += path->nstroke;
+ }
+ }
+
+ if (gl->flags & NVG_STENCIL_STROKES) {
+ // Fill shader
+ call->uniformOffset = glnvg__allocFragUniforms(gl, 2);
+ if (call->uniformOffset == -1) goto error;
+
+ glnvg__convertPaint(gl, nvg__fragUniformPtr(gl, call->uniformOffset), paint, scissor, strokeWidth, fringe, -1.0f);
+ glnvg__convertPaint(gl, nvg__fragUniformPtr(gl, call->uniformOffset + gl->fragSize), paint, scissor, strokeWidth, fringe, 1.0f - 0.5f/255.0f);
+
+ } else {
+ // Fill shader
+ call->uniformOffset = glnvg__allocFragUniforms(gl, 1);
+ if (call->uniformOffset == -1) goto error;
+ glnvg__convertPaint(gl, nvg__fragUniformPtr(gl, call->uniformOffset), paint, scissor, strokeWidth, fringe, -1.0f);
+ }
+
+ return;
+
+error:
+ // We get here if call alloc was ok, but something else is not.
+ // Roll back the last call to prevent drawing it.
+ if (gl->ncalls > 0) gl->ncalls--;
+}
+
+static void glnvg__renderTriangles(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor,
+ const NVGvertex* verts, int nverts, float fringe)
+{
+ GLNVGcontext* gl = (GLNVGcontext*)uptr;
+ GLNVGcall* call = glnvg__allocCall(gl);
+ GLNVGfragUniforms* frag;
+
+ if (call == NULL) return;
+
+ call->type = GLNVG_TRIANGLES;
+ call->image = paint->image;
+ call->blendFunc = glnvg__blendCompositeOperation(compositeOperation);
+
+ // Allocate vertices for all the paths.
+ call->triangleOffset = glnvg__allocVerts(gl, nverts);
+ if (call->triangleOffset == -1) goto error;
+ call->triangleCount = nverts;
+
+ memcpy(&gl->verts[call->triangleOffset], verts, sizeof(NVGvertex) * nverts);
+
+ // Fill shader
+ call->uniformOffset = glnvg__allocFragUniforms(gl, 1);
+ if (call->uniformOffset == -1) goto error;
+ frag = nvg__fragUniformPtr(gl, call->uniformOffset);
+ glnvg__convertPaint(gl, frag, paint, scissor, 1.0f, fringe, -1.0f);
+ frag->type = NSVG_SHADER_IMG;
+
+ return;
+
+error:
+ // We get here if call alloc was ok, but something else is not.
+ // Roll back the last call to prevent drawing it.
+ if (gl->ncalls > 0) gl->ncalls--;
+}
+
+static void glnvg__renderDelete(void* uptr)
+{
+ GLNVGcontext* gl = (GLNVGcontext*)uptr;
+ int i;
+ if (gl == NULL) return;
+
+ glnvg__deleteShader(&gl->shader);
+
+#if NANOVG_GL3
+#if NANOVG_GL_USE_UNIFORMBUFFER
+ if (gl->fragBuf != 0)
+ glDeleteBuffers(1, &gl->fragBuf);
+#endif
+ if (gl->vertArr != 0)
+ glDeleteVertexArrays(1, &gl->vertArr);
+#endif
+ if (gl->vertBuf != 0)
+ glDeleteBuffers(1, &gl->vertBuf);
+
+ for (i = 0; i < gl->ntextures; i++) {
+ if (gl->textures[i].tex != 0 && (gl->textures[i].flags & NVG_IMAGE_NODELETE) == 0)
+ glDeleteTextures(1, &gl->textures[i].tex);
+ }
+ free(gl->textures);
+
+ free(gl->paths);
+ free(gl->verts);
+ free(gl->uniforms);
+ free(gl->calls);
+
+ free(gl);
+}
+
+
+#if defined NANOVG_GL2
+NVGcontext* nvgCreateGL2(int flags)
+#elif defined NANOVG_GL3
+NVGcontext* nvgCreateGL3(int flags)
+#elif defined NANOVG_GLES2
+NVGcontext* nvgCreateGLES2(int flags)
+#elif defined NANOVG_GLES3
+NVGcontext* nvgCreateGLES3(int flags)
+#endif
+{
+ #ifdef NANOVG_USE_GLEW
+ if (!glew_initialized) {
+ if (glewInit() == GLEW_OK) {
+ glew_initialized = 1;
+ } else {
+ printf("Failed to initialize GLEW");
+ // GLEW generates GL error because it calls glGetString(GL_EXTENSIONS), we'll consume it here.
+ glGetError();
+ }
+ }
+ #endif
+
+ NVGparams params;
+ NVGcontext* ctx = NULL;
+ GLNVGcontext* gl = (GLNVGcontext*)malloc(sizeof(GLNVGcontext));
+ if (gl == NULL) goto error;
+ memset(gl, 0, sizeof(GLNVGcontext));
+
+ memset(&params, 0, sizeof(params));
+ params.renderCreate = glnvg__renderCreate;
+ params.renderCreateTexture = glnvg__renderCreateTexture;
+ params.renderDeleteTexture = glnvg__renderDeleteTexture;
+ params.renderUpdateTexture = glnvg__renderUpdateTexture;
+ params.renderGetTextureSize = glnvg__renderGetTextureSize;
+ params.renderViewport = glnvg__renderViewport;
+ params.renderCancel = glnvg__renderCancel;
+ params.renderFlush = glnvg__renderFlush;
+ params.renderFill = glnvg__renderFill;
+ params.renderStroke = glnvg__renderStroke;
+ params.renderTriangles = glnvg__renderTriangles;
+ params.renderDelete = glnvg__renderDelete;
+ params.userPtr = gl;
+ params.edgeAntiAlias = flags & NVG_ANTIALIAS ? 1 : 0;
+
+ gl->flags = flags;
+
+ ctx = nvgCreateInternal(&params);
+ if (ctx == NULL) goto error;
+
+ return ctx;
+
+error:
+ // 'gl' is freed by nvgDeleteInternal.
+ if (ctx != NULL) nvgDeleteInternal(ctx);
+ return NULL;
+}
+
+#if defined NANOVG_GL2
+void nvgDeleteGL2(NVGcontext* ctx)
+#elif defined NANOVG_GL3
+void nvgDeleteGL3(NVGcontext* ctx)
+#elif defined NANOVG_GLES2
+void nvgDeleteGLES2(NVGcontext* ctx)
+#elif defined NANOVG_GLES3
+void nvgDeleteGLES3(NVGcontext* ctx)
+#endif
+{
+ nvgDeleteInternal(ctx);
+}
+
+#if defined NANOVG_GL2
+int nvglCreateImageFromHandleGL2(NVGcontext* ctx, unsigned int textureId, int w, int h, int imageFlags)
+#elif defined NANOVG_GL3
+int nvglCreateImageFromHandleGL3(NVGcontext* ctx, unsigned int textureId, int w, int h, int imageFlags)
+#elif defined NANOVG_GLES2
+int nvglCreateImageFromHandleGLES2(NVGcontext* ctx, unsigned int textureId, int w, int h, int imageFlags)
+#elif defined NANOVG_GLES3
+int nvglCreateImageFromHandleGLES3(NVGcontext* ctx, unsigned int textureId, int w, int h, int imageFlags)
+#endif
+{
+ GLNVGcontext* gl = (GLNVGcontext*)nvgInternalParams(ctx)->userPtr;
+ GLNVGtexture* tex = glnvg__allocTexture(gl);
+
+ if (tex == NULL) return 0;
+
+ tex->type = NVG_TEXTURE_RGBA;
+ tex->tex = textureId;
+ tex->flags = imageFlags;
+ tex->width = w;
+ tex->height = h;
+
+ return tex->id;
+}
+
+#if defined NANOVG_GL2
+unsigned int nvglImageHandleGL2(NVGcontext* ctx, int image)
+#elif defined NANOVG_GL3
+unsigned int nvglImageHandleGL3(NVGcontext* ctx, int image)
+#elif defined NANOVG_GLES2
+unsigned int nvglImageHandleGLES2(NVGcontext* ctx, int image)
+#elif defined NANOVG_GLES3
+unsigned int nvglImageHandleGLES3(NVGcontext* ctx, int image)
+#endif
+{
+ GLNVGcontext* gl = (GLNVGcontext*)nvgInternalParams(ctx)->userPtr;
+ GLNVGtexture* tex = glnvg__findTexture(gl, image);
+ return tex->tex;
+}
+
+#if defined NANOVG_GL2
+const NanoVG_GL_Functions_VTable NanoVG_GL2_Functions_VTable = {
+ .name = "GL2",
+ .createContext = &nvgCreateGL2,
+ .deleteContext = &nvgDeleteGL2,
+ .createImageFromHandle = &nvglCreateImageFromHandleGL2,
+ .getImageHandle = &nvglImageHandleGL2,
+};
+#elif defined NANOVG_GL3
+const NanoVG_GL_Functions_VTable NanoVG_GL3_Functions_VTable = {
+ .name = "GL3",
+ .createContext = &nvgCreateGL3,
+ .deleteContext = &nvgDeleteGL3,
+ .createImageFromHandle = &nvglCreateImageFromHandleGL3,
+ .getImageHandle = &nvglImageHandleGL3,
+};
+#elif defined NANOVG_GLES2
+const NanoVG_GL_Functions_VTable NanoVG_GLES2_Functions_VTable = {
+ .name = "GLES2",
+ .createContext = &nvgCreateGLES2,
+ .deleteContext = &nvgDeleteGLES2,
+ .createImageFromHandle = &nvglCreateImageFromHandleGLES2,
+ .getImageHandle = &nvglImageHandleGLES2,
+};
+#elif defined NANOVG_GLES3
+const NanoVG_GL_Functions_VTable NanoVG_GLES3_Functions_VTable = {
+ .name = "GLES2",
+ .createContext = &nvgCreateGLES3,
+ .deleteContext = &nvgDeleteGLES3,
+ .createImageFromHandle = &nvglCreateImageFromHandleGLES3,
+ .getImageHandle = &nvglImageHandleGLES3,
+};
+#endif
diff --git a/source/thirdparty/nanovg_gl.h b/source/thirdparty/nanovg_gl.h
new file mode 100644
index 0000000..9f90d8f
--- /dev/null
+++ b/source/thirdparty/nanovg_gl.h
@@ -0,0 +1,92 @@
+//
+// Copyright (c) 2009-2013 Mikko Mononen memon@inside.org
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+// 1. The origin of this software must not be misrepresented; you must not
+// claim that you wrote the original software. If you use this software
+// in a product, an acknowledgment in the product documentation would be
+// appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+// misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+//
+
+#ifndef NANOVG_GL_H_F380EF20_CDA3_11EA_AF55_D3B6DB88CFCC
+#define NANOVG_GL_H_F380EF20_CDA3_11EA_AF55_D3B6DB88CFCC
+
+#include "nanovg.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Create flags
+
+enum NVGcreateFlags {
+ // Flag indicating if geometry based anti-aliasing is used (may not be needed when using MSAA).
+ NVG_ANTIALIAS = 1<<0,
+ // Flag indicating if strokes should be drawn using stencil buffer. The rendering will be a little
+ // slower, but path overlaps (i.e. self-intersecting or sharp turns) will be drawn just once.
+ NVG_STENCIL_STROKES = 1<<1,
+ // Flag indicating that additional debug checks are done.
+ NVG_DEBUG = 1<<2,
+};
+
+// Define VTable with pointers to the functions for a each OpenGL (ES) version.
+
+typedef struct {
+ const char *name;
+ NVGcontext* (*createContext)(int flags);
+ void (*deleteContext) (NVGcontext* ctx);
+ int (*createImageFromHandle) (NVGcontext* ctx, unsigned int textureId, int w, int h, int flags);
+ unsigned int (*getImageHandle) (NVGcontext* ctx, int image);
+} NanoVG_GL_Functions_VTable;
+
+// Create NanoVG contexts for different OpenGL (ES) versions.
+
+NVGcontext* nvgCreateGL2(int flags);
+void nvgDeleteGL2(NVGcontext* ctx);
+
+int nvglCreateImageFromHandleGL2(NVGcontext* ctx, GLuint textureId, int w, int h, int flags);
+GLuint nvglImageHandleGL2(NVGcontext* ctx, int image);
+
+NVGcontext* nvgCreateGL3(int flags);
+void nvgDeleteGL3(NVGcontext* ctx);
+
+int nvglCreateImageFromHandleGL3(NVGcontext* ctx, GLuint textureId, int w, int h, int flags);
+GLuint nvglImageHandleGL3(NVGcontext* ctx, int image);
+
+NVGcontext* nvgCreateGLES2(int flags);
+void nvgDeleteGLES2(NVGcontext* ctx);
+
+int nvglCreateImageFromHandleGLES2(NVGcontext* ctx, GLuint textureId, int w, int h, int flags);
+GLuint nvglImageHandleGLES2(NVGcontext* ctx, int image);
+
+NVGcontext* nvgCreateGLES3(int flags);
+void nvgDeleteGLES3(NVGcontext* ctx);
+
+int nvglCreateImageFromHandleGLES3(NVGcontext* ctx, GLuint textureId, int w, int h, int flags);
+GLuint nvglImageHandleGLES3(NVGcontext* ctx, int image);
+
+// These are additional flags on top of NVGimageFlags.
+enum NVGimageFlagsGL {
+ NVG_IMAGE_NODELETE = 1<<16, // Do not delete GL texture handle.
+};
+
+// Create VTables for different OpenGL (ES) versions.
+
+extern const NanoVG_GL_Functions_VTable NanoVG_GL2_Functions_VTable;
+extern const NanoVG_GL_Functions_VTable NanoVG_GL3_Functions_VTable;
+extern const NanoVG_GL_Functions_VTable NanoVG_GLES2_Functions_VTable;
+extern const NanoVG_GL_Functions_VTable NanoVG_GLES3_Functions_VTable;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NANOVG_GL_H_F380EF20_CDA3_11EA_AF55_D3B6DB88CFCC
diff --git a/source/thirdparty/sokol_app.h b/source/thirdparty/sokol_app.h
new file mode 100644
index 0000000..a1f45b6
--- /dev/null
+++ b/source/thirdparty/sokol_app.h
@@ -0,0 +1,11518 @@
+#if defined(SOKOL_IMPL) && !defined(SOKOL_APP_IMPL)
+#define SOKOL_APP_IMPL
+#endif
+#ifndef SOKOL_APP_INCLUDED
+/*
+ sokol_app.h -- cross-platform application wrapper
+
+ Project URL: https://github.com/floooh/sokol
+
+ Do this:
+ #define SOKOL_IMPL or
+ #define SOKOL_APP_IMPL
+ before you include this file in *one* C or C++ file to create the
+ implementation.
+
+ In the same place define one of the following to select the 3D-API
+ which should be initialized by sokol_app.h (this must also match
+ the backend selected for sokol_gfx.h if both are used in the same
+ project):
+
+ #define SOKOL_GLCORE33
+ #define SOKOL_GLES3
+ #define SOKOL_D3D11
+ #define SOKOL_METAL
+ #define SOKOL_WGPU
+
+ Optionally provide the following defines with your own implementations:
+
+ SOKOL_ASSERT(c) - your own assert macro (default: assert(c))
+ SOKOL_UNREACHABLE() - a guard macro for unreachable code (default: assert(false))
+ SOKOL_WIN32_FORCE_MAIN - define this on Win32 to use a main() entry point instead of WinMain
+ SOKOL_NO_ENTRY - define this if sokol_app.h shouldn't "hijack" the main() function
+ SOKOL_APP_API_DECL - public function declaration prefix (default: extern)
+ SOKOL_API_DECL - same as SOKOL_APP_API_DECL
+ SOKOL_API_IMPL - public function implementation prefix (default: -)
+
+ Optionally define the following to force debug checks and validations
+ even in release mode:
+
+ SOKOL_DEBUG - by default this is defined if _DEBUG is defined
+
+ If sokol_app.h is compiled as a DLL, define the following before
+ including the declaration or implementation:
+
+ SOKOL_DLL
+
+ On Windows, SOKOL_DLL will define SOKOL_APP_API_DECL as __declspec(dllexport)
+ or __declspec(dllimport) as needed.
+
+ On Linux, SOKOL_GLCORE33 can use either GLX or EGL.
+ GLX is default, set SOKOL_FORCE_EGL to override.
+
+ For example code, see https://github.com/floooh/sokol-samples/tree/master/sapp
+
+ Portions of the Windows and Linux GL initialization, event-, icon- etc... code
+ have been taken from GLFW (http://www.glfw.org/)
+
+ iOS onscreen keyboard support 'inspired' by libgdx.
+
+ Link with the following system libraries:
+
+ - on macOS with Metal: Cocoa, QuartzCore, Metal, MetalKit
+ - on macOS with GL: Cocoa, QuartzCore, OpenGL
+ - on iOS with Metal: Foundation, UIKit, Metal, MetalKit
+ - on iOS with GL: Foundation, UIKit, OpenGLES, GLKit
+ - on Linux with EGL: X11, Xi, Xcursor, EGL, GL (or GLESv2), dl, pthread, m(?)
+ - on Linux with GLX: X11, Xi, Xcursor, GL, dl, pthread, m(?)
+ - on Android: GLESv3, EGL, log, android
+ - on Windows with the MSVC or Clang toolchains: no action needed, libs are defined in-source via pragma-comment-lib
+ - on Windows with MINGW/MSYS2 gcc: compile with '-mwin32' so that _WIN32 is defined
+ - link with the following libs: -lkernel32 -luser32 -lshell32
+ - additionally with the GL backend: -lgdi32
+ - additionally with the D3D11 backend: -ld3d11 -ldxgi
+
+ On Linux, you also need to use the -pthread compiler and linker option, otherwise weird
+ things will happen, see here for details: https://github.com/floooh/sokol/issues/376
+
+ On macOS and iOS, the implementation must be compiled as Objective-C.
+
+ FEATURE OVERVIEW
+ ================
+ sokol_app.h provides a minimalistic cross-platform API which
+ implements the 'application-wrapper' parts of a 3D application:
+
+ - a common application entry function
+ - creates a window and 3D-API context/device with a 'default framebuffer'
+ - makes the rendered frame visible
+ - provides keyboard-, mouse- and low-level touch-events
+ - platforms: MacOS, iOS, HTML5, Win32, Linux/RaspberryPi, Android
+ - 3D-APIs: Metal, D3D11, GL3.2, GLES3, WebGL, WebGL2
+
+ FEATURE/PLATFORM MATRIX
+ =======================
+ | Windows | macOS | Linux | iOS | Android | HTML5
+ --------------------+---------+-------+-------+-------+---------+--------
+ gl 3.x | YES | YES | YES | --- | --- | ---
+ gles3/webgl2 | --- | --- | YES(2)| YES | YES | YES
+ metal | --- | YES | --- | YES | --- | ---
+ d3d11 | YES | --- | --- | --- | --- | ---
+ KEY_DOWN | YES | YES | YES | SOME | TODO | YES
+ KEY_UP | YES | YES | YES | SOME | TODO | YES
+ CHAR | YES | YES | YES | YES | TODO | YES
+ MOUSE_DOWN | YES | YES | YES | --- | --- | YES
+ MOUSE_UP | YES | YES | YES | --- | --- | YES
+ MOUSE_SCROLL | YES | YES | YES | --- | --- | YES
+ MOUSE_MOVE | YES | YES | YES | --- | --- | YES
+ MOUSE_ENTER | YES | YES | YES | --- | --- | YES
+ MOUSE_LEAVE | YES | YES | YES | --- | --- | YES
+ TOUCHES_BEGAN | --- | --- | --- | YES | YES | YES
+ TOUCHES_MOVED | --- | --- | --- | YES | YES | YES
+ TOUCHES_ENDED | --- | --- | --- | YES | YES | YES
+ TOUCHES_CANCELLED | --- | --- | --- | YES | YES | YES
+ RESIZED | YES | YES | YES | YES | YES | YES
+ ICONIFIED | YES | YES | YES | --- | --- | ---
+ RESTORED | YES | YES | YES | --- | --- | ---
+ FOCUSED | YES | YES | YES | --- | --- | YES
+ UNFOCUSED | YES | YES | YES | --- | --- | YES
+ SUSPENDED | --- | --- | --- | YES | YES | TODO
+ RESUMED | --- | --- | --- | YES | YES | TODO
+ QUIT_REQUESTED | YES | YES | YES | --- | --- | YES
+ IME | TODO | TODO? | TODO | ??? | TODO | ???
+ key repeat flag | YES | YES | YES | --- | --- | YES
+ windowed | YES | YES | YES | --- | --- | YES
+ fullscreen | YES | YES | YES | YES | YES | ---
+ mouse hide | YES | YES | YES | --- | --- | YES
+ mouse lock | YES | YES | YES | --- | --- | YES
+ set cursor type | YES | YES | YES | --- | --- | YES
+ screen keyboard | --- | --- | --- | YES | TODO | YES
+ swap interval | YES | YES | YES | YES | TODO | YES
+ high-dpi | YES | YES | TODO | YES | YES | YES
+ clipboard | YES | YES | TODO | --- | --- | YES
+ MSAA | YES | YES | YES | YES | YES | YES
+ drag'n'drop | YES | YES | YES | --- | --- | YES
+ window icon | YES | YES(1)| YES | --- | --- | YES
+
+ (1) macOS has no regular window icons, instead the dock icon is changed
+ (2) supported with EGL only (not GLX)
+
+ STEP BY STEP
+ ============
+ --- Add a sokol_main() function to your code which returns a sapp_desc structure
+ with initialization parameters and callback function pointers. This
+ function is called very early, usually at the start of the
+ platform's entry function (e.g. main or WinMain). You should do as
+ little as possible here, since the rest of your code might be called
+ from another thread (this depends on the platform):
+
+ sapp_desc sokol_main(int argc, char* argv[]) {
+ return (sapp_desc) {
+ .width = 640,
+ .height = 480,
+ .init_cb = my_init_func,
+ .frame_cb = my_frame_func,
+ .cleanup_cb = my_cleanup_func,
+ .event_cb = my_event_func,
+ ...
+ };
+ }
+
+ To get any logging output in case of errors you need to provide a log
+ callback. The easiest way is via sokol_log.h:
+
+ #include "sokol_log.h"
+
+ sapp_desc sokol_main(int argc, char* argv[]) {
+ return (sapp_desc) {
+ ...
+ .logger.func = slog_func,
+ };
+ }
+
+ There are many more setup parameters, but these are the most important.
+ For a complete list search for the sapp_desc structure declaration
+ below.
+
+ DO NOT call any sokol-app function from inside sokol_main(), since
+ sokol-app will not be initialized at this point.
+
+ The .width and .height parameters are the preferred size of the 3D
+ rendering canvas. The actual size may differ from this depending on
+ platform and other circumstances. Also the canvas size may change at
+ any time (for instance when the user resizes the application window,
+ or rotates the mobile device). You can just keep .width and .height
+ zero-initialized to open a default-sized window (what "default-size"
+ exactly means is platform-specific, but usually it's a size that covers
+ most of, but not all, of the display).
+
+ All provided function callbacks will be called from the same thread,
+ but this may be different from the thread where sokol_main() was called.
+
+ .init_cb (void (*)(void))
+ This function is called once after the application window,
+ 3D rendering context and swap chain have been created. The
+ function takes no arguments and has no return value.
+ .frame_cb (void (*)(void))
+ This is the per-frame callback, which is usually called 60
+ times per second. This is where your application would update
+ most of its state and perform all rendering.
+ .cleanup_cb (void (*)(void))
+ The cleanup callback is called once right before the application
+ quits.
+ .event_cb (void (*)(const sapp_event* event))
+ The event callback is mainly for input handling, but is also
+ used to communicate other types of events to the application. Keep the
+ event_cb struct member zero-initialized if your application doesn't require
+ event handling.
+
+ As you can see, those 'standard callbacks' don't have a user_data
+ argument, so any data that needs to be preserved between callbacks
+ must live in global variables. If keeping state in global variables
+ is not an option, there's an alternative set of callbacks with
+ an additional user_data pointer argument:
+
+ .user_data (void*)
+ The user-data argument for the callbacks below
+ .init_userdata_cb (void (*)(void* user_data))
+ .frame_userdata_cb (void (*)(void* user_data))
+ .cleanup_userdata_cb (void (*)(void* user_data))
+ .event_userdata_cb (void(*)(const sapp_event* event, void* user_data))
+
+ The function sapp_userdata() can be used to query the user_data
+ pointer provided in the sapp_desc struct.
+
+ You can also call sapp_query_desc() to get a copy of the
+ original sapp_desc structure.
+
+ NOTE that there's also an alternative compile mode where sokol_app.h
+ doesn't "hijack" the main() function. Search below for SOKOL_NO_ENTRY.
+
+ --- Implement the initialization callback function (init_cb), this is called
+ once after the rendering surface, 3D API and swap chain have been
+ initialized by sokol_app. All sokol-app functions can be called
+ from inside the initialization callback, the most useful functions
+ at this point are:
+
+ int sapp_width(void)
+ int sapp_height(void)
+ Returns the current width and height of the default framebuffer in pixels,
+ this may change from one frame to the next, and it may be different
+ from the initial size provided in the sapp_desc struct.
+
+ float sapp_widthf(void)
+ float sapp_heightf(void)
+ These are alternatives to sapp_width() and sapp_height() which return
+ the default framebuffer size as float values instead of integer. This
+ may help to prevent casting back and forth between int and float
+ in more strongly typed languages than C and C++.
+
+ double sapp_frame_duration(void)
+ Returns the frame duration in seconds averaged over a number of
+ frames to smooth out any jittering spikes.
+
+ int sapp_color_format(void)
+ int sapp_depth_format(void)
+ The color and depth-stencil pixelformats of the default framebuffer,
+ as integer values which are compatible with sokol-gfx's
+ sg_pixel_format enum (so that they can be plugged directly in places
+ where sg_pixel_format is expected). Possible values are:
+
+ 23 == SG_PIXELFORMAT_RGBA8
+ 28 == SG_PIXELFORMAT_BGRA8
+ 42 == SG_PIXELFORMAT_DEPTH
+ 43 == SG_PIXELFORMAT_DEPTH_STENCIL
+
+ int sapp_sample_count(void)
+ Return the MSAA sample count of the default framebuffer.
+
+ const void* sapp_metal_get_device(void)
+ const void* sapp_metal_get_renderpass_descriptor(void)
+ const void* sapp_metal_get_drawable(void)
+ If the Metal backend has been selected, these functions return pointers
+ to various Metal API objects required for rendering, otherwise
+ they return a null pointer. These void pointers are actually
+ Objective-C ids converted with a (ARC) __bridge cast so that
+ the ids can be tunnel through C code. Also note that the returned
+ pointers to the renderpass-descriptor and drawable may change from one
+ frame to the next, only the Metal device object is guaranteed to
+ stay the same.
+
+ const void* sapp_macos_get_window(void)
+ On macOS, get the NSWindow object pointer, otherwise a null pointer.
+ Before being used as Objective-C object, the void* must be converted
+ back with a (ARC) __bridge cast.
+
+ const void* sapp_ios_get_window(void)
+ On iOS, get the UIWindow object pointer, otherwise a null pointer.
+ Before being used as Objective-C object, the void* must be converted
+ back with a (ARC) __bridge cast.
+
+ const void* sapp_win32_get_hwnd(void)
+ On Windows, get the window's HWND, otherwise a null pointer. The
+ HWND has been cast to a void pointer in order to be tunneled
+ through code which doesn't include Windows.h.
+
+ const void* sapp_d3d11_get_device(void)
+ const void* sapp_d3d11_get_device_context(void)
+ const void* sapp_d3d11_get_render_target_view(void)
+ const void* sapp_d3d11_get_depth_stencil_view(void)
+ Similar to the sapp_metal_* functions, the sapp_d3d11_* functions
+ return pointers to D3D11 API objects required for rendering,
+ only if the D3D11 backend has been selected. Otherwise they
+ return a null pointer. Note that the returned pointers to the
+ render-target-view and depth-stencil-view may change from one
+ frame to the next!
+
+ const void* sapp_wgpu_get_device(void)
+ const void* sapp_wgpu_get_render_view(void)
+ const void* sapp_wgpu_get_resolve_view(void)
+ const void* sapp_wgpu_get_depth_stencil_view(void)
+ These are the WebGPU-specific functions to get the WebGPU
+ objects and values required for rendering. If sokol_app.h
+ is not compiled with SOKOL_WGPU, these functions return null.
+
+ const void* sapp_android_get_native_activity(void);
+ On Android, get the native activity ANativeActivity pointer, otherwise
+ a null pointer.
+
+ --- Implement the frame-callback function, this function will be called
+ on the same thread as the init callback, but might be on a different
+ thread than the sokol_main() function. Note that the size of
+ the rendering framebuffer might have changed since the frame callback
+ was called last. Call the functions sapp_width() and sapp_height()
+ each frame to get the current size.
+
+ --- Optionally implement the event-callback to handle input events.
+ sokol-app provides the following type of input events:
+ - a 'virtual key' was pressed down or released
+ - a single text character was entered (provided as UTF-32 code point)
+ - a mouse button was pressed down or released (left, right, middle)
+ - mouse-wheel or 2D scrolling events
+ - the mouse was moved
+ - the mouse has entered or left the application window boundaries
+ - low-level, portable multi-touch events (began, moved, ended, cancelled)
+ - the application window was resized, iconified or restored
+ - the application was suspended or restored (on mobile platforms)
+ - the user or application code has asked to quit the application
+ - a string was pasted to the system clipboard
+ - one or more files have been dropped onto the application window
+
+ To explicitly 'consume' an event and prevent that the event is
+ forwarded for further handling to the operating system, call
+ sapp_consume_event() from inside the event handler (NOTE that
+ this behaviour is currently only implemented for some HTML5
+ events, support for other platforms and event types will
+ be added as needed, please open a github ticket and/or provide
+ a PR if needed).
+
+ NOTE: Do *not* call any 3D API rendering functions in the event
+ callback function, since the 3D API context may not be active when the
+ event callback is called (it may work on some platforms and 3D APIs,
+ but not others, and the exact behaviour may change between
+ sokol-app versions).
+
+ --- Implement the cleanup-callback function, this is called once
+ after the user quits the application (see the section
+ "APPLICATION QUIT" for detailed information on quitting
+ behaviour, and how to intercept a pending quit - for instance to show a
+ "Really Quit?" dialog box). Note that the cleanup-callback isn't
+ guaranteed to be called on the web and mobile platforms.
+
+ MOUSE CURSOR TYPE AND VISIBILITY
+ ================================
+ You can show and hide the mouse cursor with
+
+ void sapp_show_mouse(bool show)
+
+ And to get the current shown status:
+
+ bool sapp_mouse_shown(void)
+
+ NOTE that hiding the mouse cursor is different and independent from
+ the MOUSE/POINTER LOCK feature which will also hide the mouse pointer when
+ active (MOUSE LOCK is described below).
+
+ To change the mouse cursor to one of several predefined types, call
+ the function:
+
+ void sapp_set_mouse_cursor(sapp_mouse_cursor cursor)
+
+ Setting the default mouse cursor SAPP_MOUSECURSOR_DEFAULT will restore
+ the standard look.
+
+ To get the currently active mouse cursor type, call:
+
+ sapp_mouse_cursor sapp_get_mouse_cursor(void)
+
+ MOUSE LOCK (AKA POINTER LOCK, AKA MOUSE CAPTURE)
+ ================================================
+ In normal mouse mode, no mouse movement events are reported when the
+ mouse leaves the windows client area or hits the screen border (whether
+ it's one or the other depends on the platform), and the mouse move events
+ (SAPP_EVENTTYPE_MOUSE_MOVE) contain absolute mouse positions in
+ framebuffer pixels in the sapp_event items mouse_x and mouse_y, and
+ relative movement in framebuffer pixels in the sapp_event items mouse_dx
+ and mouse_dy.
+
+ To get continuous mouse movement (also when the mouse leaves the window
+ client area or hits the screen border), activate mouse-lock mode
+ by calling:
+
+ sapp_lock_mouse(true)
+
+ When mouse lock is activated, the mouse pointer is hidden, the
+ reported absolute mouse position (sapp_event.mouse_x/y) appears
+ frozen, and the relative mouse movement in sapp_event.mouse_dx/dy
+ no longer has a direct relation to framebuffer pixels but instead
+ uses "raw mouse input" (what "raw mouse input" exactly means also
+ differs by platform).
+
+ To deactivate mouse lock and return to normal mouse mode, call
+
+ sapp_lock_mouse(false)
+
+ And finally, to check if mouse lock is currently active, call
+
+ if (sapp_mouse_locked()) { ... }
+
+ On native platforms, the sapp_lock_mouse() and sapp_mouse_locked()
+ functions work as expected (mouse lock is activated or deactivated
+ immediately when sapp_lock_mouse() is called, and sapp_mouse_locked()
+ also immediately returns the new state after sapp_lock_mouse()
+ is called.
+
+ On the web platform, sapp_lock_mouse() and sapp_mouse_locked() behave
+ differently, as dictated by the limitations of the HTML5 Pointer Lock API:
+
+ - sapp_lock_mouse(true) can be called at any time, but it will
+ only take effect in a 'short-lived input event handler of a specific
+ type', meaning when one of the following events happens:
+ - SAPP_EVENTTYPE_MOUSE_DOWN
+ - SAPP_EVENTTYPE_MOUSE_UP
+ - SAPP_EVENTTYPE_MOUSE_SCROLL
+ - SAPP_EVENTTYPE_KEY_UP
+ - SAPP_EVENTTYPE_KEY_DOWN
+ - The mouse lock/unlock action on the web platform is asynchronous,
+ this means that sapp_mouse_locked() won't immediately return
+ the new status after calling sapp_lock_mouse(), instead the
+ reported status will only change when the pointer lock has actually
+ been activated or deactivated in the browser.
+ - On the web, mouse lock can be deactivated by the user at any time
+ by pressing the Esc key. When this happens, sokol_app.h behaves
+ the same as if sapp_lock_mouse(false) is called.
+
+ For things like camera manipulation it's most straightforward to lock
+ and unlock the mouse right from the sokol_app.h event handler, for
+ instance the following code enters and leaves mouse lock when the
+ left mouse button is pressed and released, and then uses the relative
+ movement information to manipulate a camera (taken from the
+ cgltf-sapp.c sample in the sokol-samples repository
+ at https://github.com/floooh/sokol-samples):
+
+ static void input(const sapp_event* ev) {
+ switch (ev->type) {
+ case SAPP_EVENTTYPE_MOUSE_DOWN:
+ if (ev->mouse_button == SAPP_MOUSEBUTTON_LEFT) {
+ sapp_lock_mouse(true);
+ }
+ break;
+
+ case SAPP_EVENTTYPE_MOUSE_UP:
+ if (ev->mouse_button == SAPP_MOUSEBUTTON_LEFT) {
+ sapp_lock_mouse(false);
+ }
+ break;
+
+ case SAPP_EVENTTYPE_MOUSE_MOVE:
+ if (sapp_mouse_locked()) {
+ cam_orbit(&state.camera, ev->mouse_dx * 0.25f, ev->mouse_dy * 0.25f);
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ CLIPBOARD SUPPORT
+ =================
+ Applications can send and receive UTF-8 encoded text data from and to the
+ system clipboard. By default, clipboard support is disabled and
+ must be enabled at startup via the following sapp_desc struct
+ members:
+
+ sapp_desc.enable_clipboard - set to true to enable clipboard support
+ sapp_desc.clipboard_size - size of the internal clipboard buffer in bytes
+
+ Enabling the clipboard will dynamically allocate a clipboard buffer
+ for UTF-8 encoded text data of the requested size in bytes, the default
+ size is 8 KBytes. Strings that don't fit into the clipboard buffer
+ (including the terminating zero) will be silently clipped, so it's
+ important that you provide a big enough clipboard size for your
+ use case.
+
+ To send data to the clipboard, call sapp_set_clipboard_string() with
+ a pointer to an UTF-8 encoded, null-terminated C-string.
+
+ NOTE that on the HTML5 platform, sapp_set_clipboard_string() must be
+ called from inside a 'short-lived event handler', and there are a few
+ other HTML5-specific caveats to workaround. You'll basically have to
+ tinker until it works in all browsers :/ (maybe the situation will
+ improve when all browsers agree on and implement the new
+ HTML5 navigator.clipboard API).
+
+ To get data from the clipboard, check for the SAPP_EVENTTYPE_CLIPBOARD_PASTED
+ event in your event handler function, and then call sapp_get_clipboard_string()
+ to obtain the pasted UTF-8 encoded text.
+
+ NOTE that behaviour of sapp_get_clipboard_string() is slightly different
+ depending on platform:
+
+ - on the HTML5 platform, the internal clipboard buffer will only be updated
+ right before the SAPP_EVENTTYPE_CLIPBOARD_PASTED event is sent,
+ and sapp_get_clipboard_string() will simply return the current content
+ of the clipboard buffer
+ - on 'native' platforms, the call to sapp_get_clipboard_string() will
+ update the internal clipboard buffer with the most recent data
+ from the system clipboard
+
+ Portable code should check for the SAPP_EVENTTYPE_CLIPBOARD_PASTED event,
+ and then call sapp_get_clipboard_string() right in the event handler.
+
+ The SAPP_EVENTTYPE_CLIPBOARD_PASTED event will be generated by sokol-app
+ as follows:
+
+ - on macOS: when the Cmd+V key is pressed down
+ - on HTML5: when the browser sends a 'paste' event to the global 'window' object
+ - on all other platforms: when the Ctrl+V key is pressed down
+
+ DRAG AND DROP SUPPORT
+ =====================
+ PLEASE NOTE: the drag'n'drop feature works differently on WASM/HTML5
+ and on the native desktop platforms (Win32, Linux and macOS) because
+ of security-related restrictions in the HTML5 drag'n'drop API. The
+ WASM/HTML5 specifics are described at the end of this documentation
+ section:
+
+ Like clipboard support, drag'n'drop support must be explicitly enabled
+ at startup in the sapp_desc struct.
+
+ sapp_desc sokol_main() {
+ return (sapp_desc) {
+ .enable_dragndrop = true, // default is false
+ ...
+ };
+ }
+
+ You can also adjust the maximum number of files that are accepted
+ in a drop operation, and the maximum path length in bytes if needed:
+
+ sapp_desc sokol_main() {
+ return (sapp_desc) {
+ .enable_dragndrop = true, // default is false
+ .max_dropped_files = 8, // default is 1
+ .max_dropped_file_path_length = 8192, // in bytes, default is 2048
+ ...
+ };
+ }
+
+ When drag'n'drop is enabled, the event callback will be invoked with an
+ event of type SAPP_EVENTTYPE_FILES_DROPPED whenever the user drops files on
+ the application window.
+
+ After the SAPP_EVENTTYPE_FILES_DROPPED is received, you can query the
+ number of dropped files, and their absolute paths by calling separate
+ functions:
+
+ void on_event(const sapp_event* ev) {
+ if (ev->type == SAPP_EVENTTYPE_FILES_DROPPED) {
+
+ // the mouse position where the drop happened
+ float x = ev->mouse_x;
+ float y = ev->mouse_y;
+
+ // get the number of files and their paths like this:
+ const int num_dropped_files = sapp_get_num_dropped_files();
+ for (int i = 0; i < num_dropped_files; i++) {
+ const char* path = sapp_get_dropped_file_path(i);
+ ...
+ }
+ }
+ }
+
+ The returned file paths are UTF-8 encoded strings.
+
+ You can call sapp_get_num_dropped_files() and sapp_get_dropped_file_path()
+ anywhere, also outside the event handler callback, but be aware that the
+ file path strings will be overwritten with the next drop operation.
+
+ In any case, sapp_get_dropped_file_path() will never return a null pointer,
+ instead an empty string "" will be returned if the drag'n'drop feature
+ hasn't been enabled, the last drop-operation failed, or the file path index
+ is out of range.
+
+ Drag'n'drop caveats:
+
+ - if more files are dropped in a single drop-action
+ than sapp_desc.max_dropped_files, the additional
+ files will be silently ignored
+ - if any of the file paths is longer than
+ sapp_desc.max_dropped_file_path_length (in number of bytes, after UTF-8
+ encoding) the entire drop operation will be silently ignored (this
+ needs some sort of error feedback in the future)
+ - no mouse positions are reported while the drag is in
+ process, this may change in the future
+
+ Drag'n'drop on HTML5/WASM:
+
+ The HTML5 drag'n'drop API doesn't return file paths, but instead
+ black-box 'file objects' which must be used to load the content
+ of dropped files. This is the reason why sokol_app.h adds two
+ HTML5-specific functions to the drag'n'drop API:
+
+ uint32_t sapp_html5_get_dropped_file_size(int index)
+ Returns the size in bytes of a dropped file.
+
+ void sapp_html5_fetch_dropped_file(const sapp_html5_fetch_request* request)
+ Asynchronously loads the content of a dropped file into a
+ provided memory buffer (which must be big enough to hold
+ the file content)
+
+ To start loading the first dropped file after an SAPP_EVENTTYPE_FILES_DROPPED
+ event is received:
+
+ sapp_html5_fetch_dropped_file(&(sapp_html5_fetch_request){
+ .dropped_file_index = 0,
+ .callback = fetch_cb
+ .buffer = {
+ .ptr = buf,
+ .size = sizeof(buf)
+ },
+ .user_data = ...
+ });
+
+ Make sure that the memory pointed to by 'buf' stays valid until the
+ callback function is called!
+
+ As result of the asynchronous loading operation (no matter if succeeded or
+ failed) the 'fetch_cb' function will be called:
+
+ void fetch_cb(const sapp_html5_fetch_response* response) {
+ // IMPORTANT: check if the loading operation actually succeeded:
+ if (response->succeeded) {
+ // the size of the loaded file:
+ const size_t num_bytes = response->data.size;
+ // and the pointer to the data (same as 'buf' in the fetch-call):
+ const void* ptr = response->data.ptr;
+ }
+ else {
+ // on error check the error code:
+ switch (response->error_code) {
+ case SAPP_HTML5_FETCH_ERROR_BUFFER_TOO_SMALL:
+ ...
+ break;
+ case SAPP_HTML5_FETCH_ERROR_OTHER:
+ ...
+ break;
+ }
+ }
+ }
+
+ Check the droptest-sapp example for a real-world example which works
+ both on native platforms and the web:
+
+ https://github.com/floooh/sokol-samples/blob/master/sapp/droptest-sapp.c
+
+ HIGH-DPI RENDERING
+ ==================
+ You can set the sapp_desc.high_dpi flag during initialization to request
+ a full-resolution framebuffer on HighDPI displays. The default behaviour
+ is sapp_desc.high_dpi=false, this means that the application will
+ render to a lower-resolution framebuffer on HighDPI displays and the
+ rendered content will be upscaled by the window system composer.
+
+ In a HighDPI scenario, you still request the same window size during
+ sokol_main(), but the framebuffer sizes returned by sapp_width()
+ and sapp_height() will be scaled up according to the DPI scaling
+ ratio.
+
+ Note that on some platforms the DPI scaling factor may change at any
+ time (for instance when a window is moved from a high-dpi display
+ to a low-dpi display).
+
+ To query the current DPI scaling factor, call the function:
+
+ float sapp_dpi_scale(void);
+
+ For instance on a Retina Mac, returning the following sapp_desc
+ struct from sokol_main():
+
+ sapp_desc sokol_main() {
+ return (sapp_desc) {
+ .width = 640,
+ .height = 480,
+ .high_dpi = true,
+ ...
+ };
+ }
+
+ ...the functions the functions sapp_width(), sapp_height()
+ and sapp_dpi_scale() will return the following values:
+
+ sapp_width: 1280
+ sapp_height: 960
+ sapp_dpi_scale: 2.0
+
+ If the high_dpi flag is false, or you're not running on a Retina display,
+ the values would be:
+
+ sapp_width: 640
+ sapp_height: 480
+ sapp_dpi_scale: 1.0
+
+ If the window is moved from the Retina display to a low-dpi external display,
+ the values would change as follows:
+
+ sapp_width: 1280 => 640
+ sapp_height: 960 => 480
+ sapp_dpi_scale: 2.0 => 1.0
+
+ Currently there is no event associated with a DPI change, but an
+ SAPP_EVENTTYPE_RESIZED will be sent as a side effect of the
+ framebuffer size changing.
+
+ Per-monitor DPI is currently supported on macOS and Windows.
+
+ APPLICATION QUIT
+ ================
+ Without special quit handling, a sokol_app.h application will quit
+ 'gracefully' when the user clicks the window close-button unless a
+ platform's application model prevents this (e.g. on web or mobile).
+ 'Graceful exit' means that the application-provided cleanup callback will
+ be called before the application quits.
+
+ On native desktop platforms sokol_app.h provides more control over the
+ application-quit-process. It's possible to initiate a 'programmatic quit'
+ from the application code, and a quit initiated by the application user can
+ be intercepted (for instance to show a custom dialog box).
+
+ This 'programmatic quit protocol' is implemented through 3 functions
+ and 1 event:
+
+ - sapp_quit(): This function simply quits the application without
+ giving the user a chance to intervene. Usually this might
+ be called when the user clicks the 'Ok' button in a 'Really Quit?'
+ dialog box
+ - sapp_request_quit(): Calling sapp_request_quit() will send the
+ event SAPP_EVENTTYPE_QUIT_REQUESTED to the applications event handler
+ callback, giving the user code a chance to intervene and cancel the
+ pending quit process (for instance to show a 'Really Quit?' dialog
+ box). If the event handler callback does nothing, the application
+ will be quit as usual. To prevent this, call the function
+ sapp_cancel_quit() from inside the event handler.
+ - sapp_cancel_quit(): Cancels a pending quit request, either initiated
+ by the user clicking the window close button, or programmatically
+ by calling sapp_request_quit(). The only place where calling this
+ function makes sense is from inside the event handler callback when
+ the SAPP_EVENTTYPE_QUIT_REQUESTED event has been received.
+ - SAPP_EVENTTYPE_QUIT_REQUESTED: this event is sent when the user
+ clicks the window's close button or application code calls the
+ sapp_request_quit() function. The event handler callback code can handle
+ this event by calling sapp_cancel_quit() to cancel the quit.
+ If the event is ignored, the application will quit as usual.
+
+ On the web platform, the quit behaviour differs from native platforms,
+ because of web-specific restrictions:
+
+ A `programmatic quit` initiated by calling sapp_quit() or
+ sapp_request_quit() will work as described above: the cleanup callback is
+ called, platform-specific cleanup is performed (on the web
+ this means that JS event handlers are unregisters), and then
+ the request-animation-loop will be exited. However that's all. The
+ web page itself will continue to exist (e.g. it's not possible to
+ programmatically close the browser tab).
+
+ On the web it's also not possible to run custom code when the user
+ closes a browser tab, so it's not possible to prevent this with a
+ fancy custom dialog box.
+
+ Instead the standard "Leave Site?" dialog box can be activated (or
+ deactivated) with the following function:
+
+ sapp_html5_ask_leave_site(bool ask);
+
+ The initial state of the associated internal flag can be provided
+ at startup via sapp_desc.html5_ask_leave_site.
+
+ This feature should only be used sparingly in critical situations - for
+ instance when the user would loose data - since popping up modal dialog
+ boxes is considered quite rude in the web world. Note that there's no way
+ to customize the content of this dialog box or run any code as a result
+ of the user's decision. Also note that the user must have interacted with
+ the site before the dialog box will appear. These are all security measures
+ to prevent fishing.
+
+ The Dear ImGui HighDPI sample contains example code of how to
+ implement a 'Really Quit?' dialog box with Dear ImGui (native desktop
+ platforms only), and for showing the hardwired "Leave Site?" dialog box
+ when running on the web platform:
+
+ https://floooh.github.io/sokol-html5/wasm/imgui-highdpi-sapp.html
+
+ FULLSCREEN
+ ==========
+ If the sapp_desc.fullscreen flag is true, sokol-app will try to create
+ a fullscreen window on platforms with a 'proper' window system
+ (mobile devices will always use fullscreen). The implementation details
+ depend on the target platform, in general sokol-app will use a
+ 'soft approach' which doesn't interfere too much with the platform's
+ window system (for instance borderless fullscreen window instead of
+ a 'real' fullscreen mode). Such details might change over time
+ as sokol-app is adapted for different needs.
+
+ The most important effect of fullscreen mode to keep in mind is that
+ the requested canvas width and height will be ignored for the initial
+ window size, calling sapp_width() and sapp_height() will instead return
+ the resolution of the fullscreen canvas (however the provided size
+ might still be used for the non-fullscreen window, in case the user can
+ switch back from fullscreen- to windowed-mode).
+
+ To toggle fullscreen mode programmatically, call sapp_toggle_fullscreen().
+
+ To check if the application window is currently in fullscreen mode,
+ call sapp_is_fullscreen().
+
+ WINDOW ICON SUPPORT
+ ===================
+ Some sokol_app.h backends allow to change the window icon programmatically:
+
+ - on Win32: the small icon in the window's title bar, and the
+ bigger icon in the task bar
+ - on Linux: highly dependent on the used window manager, but usually
+ the window's title bar icon and/or the task bar icon
+ - on HTML5: the favicon shown in the page's browser tab
+
+ NOTE that it is not possible to set the actual application icon which is
+ displayed by the operating system on the desktop or 'home screen'. Those
+ icons must be provided 'traditionally' through operating-system-specific
+ resources which are associated with the application (sokol_app.h might
+ later support setting the window icon from platform specific resource data
+ though).
+
+ There are two ways to set the window icon:
+
+ - at application start in the sokol_main() function by initializing
+ the sapp_desc.icon nested struct
+ - or later by calling the function sapp_set_icon()
+
+ As a convenient shortcut, sokol_app.h comes with a builtin default-icon
+ (a rainbow-colored 'S', which at least looks a bit better than the Windows
+ default icon for applications), which can be activated like this:
+
+ At startup in sokol_main():
+
+ sapp_desc sokol_main(...) {
+ return (sapp_desc){
+ ...
+ icon.sokol_default = true
+ };
+ }
+
+ Or later by calling:
+
+ sapp_set_icon(&(sapp_icon_desc){ .sokol_default = true });
+
+ NOTE that a completely zero-initialized sapp_icon_desc struct will not
+ update the window icon in any way. This is an 'escape hatch' so that you
+ can handle the window icon update yourself (or if you do this already,
+ sokol_app.h won't get in your way, in this case just leave the
+ sapp_desc.icon struct zero-initialized).
+
+ Providing your own icon images works exactly like in GLFW (down to the
+ data format):
+
+ You provide one or more 'candidate images' in different sizes, and the
+ sokol_app.h platform backends pick the best match for the specific backend
+ and icon type.
+
+ For each candidate image, you need to provide:
+
+ - the width in pixels
+ - the height in pixels
+ - and the actual pixel data in RGBA8 pixel format (e.g. 0xFFCC8844
+ on a little-endian CPU means: alpha=0xFF, blue=0xCC, green=0x88, red=0x44)
+
+ For instance, if you have 3 candidate images (small, medium, big) of
+ sizes 16x16, 32x32 and 64x64 the corresponding sapp_icon_desc struct is setup
+ like this:
+
+ // the actual pixel data (RGBA8, origin top-left)
+ const uint32_t small[16][16] = { ... };
+ const uint32_t medium[32][32] = { ... };
+ const uint32_t big[64][64] = { ... };
+
+ const sapp_icon_desc icon_desc = {
+ .images = {
+ { .width = 16, .height = 16, .pixels = SAPP_RANGE(small) },
+ { .width = 32, .height = 32, .pixels = SAPP_RANGE(medium) },
+ // ...or without the SAPP_RANGE helper macro:
+ { .width = 64, .height = 64, .pixels = { .ptr=big, .size=sizeof(big) } }
+ }
+ };
+
+ An sapp_icon_desc struct initialized like this can then either be applied
+ at application start in sokol_main:
+
+ sapp_desc sokol_main(...) {
+ return (sapp_desc){
+ ...
+ icon = icon_desc
+ };
+ }
+
+ ...or later by calling sapp_set_icon():
+
+ sapp_set_icon(&icon_desc);
+
+ Some window icon caveats:
+
+ - once the window icon has been updated, there's no way to go back to
+ the platform's default icon, this is because some platforms (Linux
+ and HTML5) don't switch the icon visual back to the default even if
+ the custom icon is deleted or removed
+ - on HTML5, if the sokol_app.h icon doesn't show up in the browser
+ tab, check that there's no traditional favicon 'link' element
+ is defined in the page's index.html, sokol_app.h will only
+ append a new favicon link element, but not delete any manually
+ defined favicon in the page
+
+ For an example and test of the window icon feature, check out the the
+ 'icon-sapp' sample on the sokol-samples git repository.
+
+ ONSCREEN KEYBOARD
+ =================
+ On some platforms which don't provide a physical keyboard, sokol-app
+ can display the platform's integrated onscreen keyboard for text
+ input. To request that the onscreen keyboard is shown, call
+
+ sapp_show_keyboard(true);
+
+ Likewise, to hide the keyboard call:
+
+ sapp_show_keyboard(false);
+
+ Note that on the web platform, the keyboard can only be shown from
+ inside an input handler. On such platforms, sapp_show_keyboard()
+ will only work as expected when it is called from inside the
+ sokol-app event callback function. When called from other places,
+ an internal flag will be set, and the onscreen keyboard will be
+ called at the next 'legal' opportunity (when the next input event
+ is handled).
+
+ OPTIONAL: DON'T HIJACK main() (#define SOKOL_NO_ENTRY)
+ ======================================================
+ In its default configuration, sokol_app.h "hijacks" the platform's
+ standard main() function. This was done because different platforms
+ have different main functions which are not compatible with
+ C's main() (for instance WinMain on Windows has completely different
+ arguments). However, this "main hijacking" posed a problem for
+ usage scenarios like integrating sokol_app.h with other languages than
+ C or C++, so an alternative SOKOL_NO_ENTRY mode has been added
+ in which the user code provides the platform's main function:
+
+ - define SOKOL_NO_ENTRY before including the sokol_app.h implementation
+ - do *not* provide a sokol_main() function
+ - instead provide the standard main() function of the platform
+ - from the main function, call the function ```sapp_run()``` which
+ takes a pointer to an ```sapp_desc``` structure.
+ - ```sapp_run()``` takes over control and calls the provided init-, frame-,
+ shutdown- and event-callbacks just like in the default model, it
+ will only return when the application quits (or not at all on some
+ platforms, like emscripten)
+
+ NOTE: SOKOL_NO_ENTRY is currently not supported on Android.
+
+ WINDOWS CONSOLE OUTPUT
+ ======================
+ On Windows, regular windowed applications don't show any stdout/stderr text
+ output, which can be a bit of a hassle for printf() debugging or generally
+ logging text to the console. Also, console output by default uses a local
+ codepage setting and thus international UTF-8 encoded text is printed
+ as garbage.
+
+ To help with these issues, sokol_app.h can be configured at startup
+ via the following Windows-specific sapp_desc flags:
+
+ sapp_desc.win32_console_utf8 (default: false)
+ When set to true, the output console codepage will be switched
+ to UTF-8 (and restored to the original codepage on exit)
+
+ sapp_desc.win32_console_attach (default: false)
+ When set to true, stdout and stderr will be attached to the
+ console of the parent process (if the parent process actually
+ has a console). This means that if the application was started
+ in a command line window, stdout and stderr output will be printed
+ to the terminal, just like a regular command line program. But if
+ the application is started via double-click, it will behave like
+ a regular UI application, and stdout/stderr will not be visible.
+
+ sapp_desc.win32_console_create (default: false)
+ When set to true, a new console window will be created and
+ stdout/stderr will be redirected to that console window. It
+ doesn't matter if the application is started from the command
+ line or via double-click.
+
+ MEMORY ALLOCATION OVERRIDE
+ ==========================
+ You can override the memory allocation functions at initialization time
+ like this:
+
+ void* my_alloc(size_t size, void* user_data) {
+ return malloc(size);
+ }
+
+ void my_free(void* ptr, void* user_data) {
+ free(ptr);
+ }
+
+ sapp_desc sokol_main(int argc, char* argv[]) {
+ return (sapp_desc){
+ // ...
+ .allocator = {
+ .alloc = my_alloc,
+ .free = my_free,
+ .user_data = ...,
+ }
+ };
+ }
+
+ If no overrides are provided, malloc and free will be used.
+
+ This only affects memory allocation calls done by sokol_app.h
+ itself though, not any allocations in OS libraries.
+
+
+ ERROR REPORTING AND LOGGING
+ ===========================
+ To get any logging information at all you need to provide a logging callback in the setup call
+ the easiest way is to use sokol_log.h:
+
+ #include "sokol_log.h"
+
+ sapp_desc sokol_main(int argc, char* argv[]) {
+ return (sapp_desc) {
+ ...
+ .logger.func = slog_func,
+ };
+ }
+
+ To override logging with your own callback, first write a logging function like this:
+
+ void my_log(const char* tag, // e.g. 'sapp'
+ uint32_t log_level, // 0=panic, 1=error, 2=warn, 3=info
+ uint32_t log_item_id, // SAPP_LOGITEM_*
+ const char* message_or_null, // a message string, may be nullptr in release mode
+ uint32_t line_nr, // line number in sokol_app.h
+ const char* filename_or_null, // source filename, may be nullptr in release mode
+ void* user_data)
+ {
+ ...
+ }
+
+ ...and then setup sokol-app like this:
+
+ sapp_desc sokol_main(int argc, char* argv[]) {
+ return (sapp_desc) {
+ ...
+ .logger = {
+ .func = my_log,
+ .user_data = my_user_data,
+ }
+ };
+ }
+
+ The provided logging function must be reentrant (e.g. be callable from
+ different threads).
+
+ If you don't want to provide your own custom logger it is highly recommended to use
+ the standard logger in sokol_log.h instead, otherwise you won't see any warnings or
+ errors.
+
+
+ TEMP NOTE DUMP
+ ==============
+ - onscreen keyboard support on Android requires Java :(, should we even bother?
+ - sapp_desc needs a bool whether to initialize depth-stencil surface
+ - GL context initialization needs more control (at least what GL version to initialize)
+ - application icon
+ - the Android implementation calls cleanup_cb() and destroys the egl context in onDestroy
+ at the latest but should do it earlier, in onStop, as an app is "killable" after onStop
+ on Android Honeycomb and later (it can't be done at the moment as the app may be started
+ again after onStop and the sokol lifecycle does not yet handle context teardown/bringup)
+
+
+ LICENSE
+ =======
+ zlib/libpng license
+
+ Copyright (c) 2018 Andre Weissflog
+
+ This software is provided 'as-is', without any express or implied warranty.
+ In no event will the authors be held liable for any damages arising from the
+ use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software in a
+ product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+
+ 2. Altered source versions must be plainly marked as such, and must not
+ be misrepresented as being the original software.
+
+ 3. This notice may not be removed or altered from any source
+ distribution.
+*/
+#define SOKOL_APP_INCLUDED (1)
+#include <stddef.h> // size_t
+#include <stdint.h>
+#include <stdbool.h>
+
+#if defined(SOKOL_API_DECL) && !defined(SOKOL_APP_API_DECL)
+#define SOKOL_APP_API_DECL SOKOL_API_DECL
+#endif
+#ifndef SOKOL_APP_API_DECL
+#if defined(_WIN32) && defined(SOKOL_DLL) && defined(SOKOL_APP_IMPL)
+#define SOKOL_APP_API_DECL __declspec(dllexport)
+#elif defined(_WIN32) && defined(SOKOL_DLL)
+#define SOKOL_APP_API_DECL __declspec(dllimport)
+#else
+#define SOKOL_APP_API_DECL extern
+#endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* misc constants */
+enum {
+ SAPP_MAX_TOUCHPOINTS = 8,
+ SAPP_MAX_MOUSEBUTTONS = 3,
+ SAPP_MAX_KEYCODES = 512,
+ SAPP_MAX_ICONIMAGES = 8,
+};
+
+/*
+ sapp_event_type
+
+ The type of event that's passed to the event handler callback
+ in the sapp_event.type field. These are not just "traditional"
+ input events, but also notify the application about state changes
+ or other user-invoked actions.
+*/
+typedef enum sapp_event_type {
+ SAPP_EVENTTYPE_INVALID,
+ SAPP_EVENTTYPE_KEY_DOWN,
+ SAPP_EVENTTYPE_KEY_UP,
+ SAPP_EVENTTYPE_CHAR,
+ SAPP_EVENTTYPE_MOUSE_DOWN,
+ SAPP_EVENTTYPE_MOUSE_UP,
+ SAPP_EVENTTYPE_MOUSE_SCROLL,
+ SAPP_EVENTTYPE_MOUSE_MOVE,
+ SAPP_EVENTTYPE_MOUSE_ENTER,
+ SAPP_EVENTTYPE_MOUSE_LEAVE,
+ SAPP_EVENTTYPE_TOUCHES_BEGAN,
+ SAPP_EVENTTYPE_TOUCHES_MOVED,
+ SAPP_EVENTTYPE_TOUCHES_ENDED,
+ SAPP_EVENTTYPE_TOUCHES_CANCELLED,
+ SAPP_EVENTTYPE_RESIZED,
+ SAPP_EVENTTYPE_ICONIFIED,
+ SAPP_EVENTTYPE_RESTORED,
+ SAPP_EVENTTYPE_FOCUSED,
+ SAPP_EVENTTYPE_UNFOCUSED,
+ SAPP_EVENTTYPE_SUSPENDED,
+ SAPP_EVENTTYPE_RESUMED,
+ SAPP_EVENTTYPE_QUIT_REQUESTED,
+ SAPP_EVENTTYPE_CLIPBOARD_PASTED,
+ SAPP_EVENTTYPE_FILES_DROPPED,
+ _SAPP_EVENTTYPE_NUM,
+ _SAPP_EVENTTYPE_FORCE_U32 = 0x7FFFFFFF
+} sapp_event_type;
+
+/*
+ sapp_keycode
+
+ The 'virtual keycode' of a KEY_DOWN or KEY_UP event in the
+ struct field sapp_event.key_code.
+
+ Note that the keycode values are identical with GLFW.
+*/
+typedef enum sapp_keycode {
+ SAPP_KEYCODE_INVALID = 0,
+ SAPP_KEYCODE_SPACE = 32,
+ SAPP_KEYCODE_APOSTROPHE = 39, /* ' */
+ SAPP_KEYCODE_COMMA = 44, /* , */
+ SAPP_KEYCODE_MINUS = 45, /* - */
+ SAPP_KEYCODE_PERIOD = 46, /* . */
+ SAPP_KEYCODE_SLASH = 47, /* / */
+ SAPP_KEYCODE_0 = 48,
+ SAPP_KEYCODE_1 = 49,
+ SAPP_KEYCODE_2 = 50,
+ SAPP_KEYCODE_3 = 51,
+ SAPP_KEYCODE_4 = 52,
+ SAPP_KEYCODE_5 = 53,
+ SAPP_KEYCODE_6 = 54,
+ SAPP_KEYCODE_7 = 55,
+ SAPP_KEYCODE_8 = 56,
+ SAPP_KEYCODE_9 = 57,
+ SAPP_KEYCODE_SEMICOLON = 59, /* ; */
+ SAPP_KEYCODE_EQUAL = 61, /* = */
+ SAPP_KEYCODE_A = 65,
+ SAPP_KEYCODE_B = 66,
+ SAPP_KEYCODE_C = 67,
+ SAPP_KEYCODE_D = 68,
+ SAPP_KEYCODE_E = 69,
+ SAPP_KEYCODE_F = 70,
+ SAPP_KEYCODE_G = 71,
+ SAPP_KEYCODE_H = 72,
+ SAPP_KEYCODE_I = 73,
+ SAPP_KEYCODE_J = 74,
+ SAPP_KEYCODE_K = 75,
+ SAPP_KEYCODE_L = 76,
+ SAPP_KEYCODE_M = 77,
+ SAPP_KEYCODE_N = 78,
+ SAPP_KEYCODE_O = 79,
+ SAPP_KEYCODE_P = 80,
+ SAPP_KEYCODE_Q = 81,
+ SAPP_KEYCODE_R = 82,
+ SAPP_KEYCODE_S = 83,
+ SAPP_KEYCODE_T = 84,
+ SAPP_KEYCODE_U = 85,
+ SAPP_KEYCODE_V = 86,
+ SAPP_KEYCODE_W = 87,
+ SAPP_KEYCODE_X = 88,
+ SAPP_KEYCODE_Y = 89,
+ SAPP_KEYCODE_Z = 90,
+ SAPP_KEYCODE_LEFT_BRACKET = 91, /* [ */
+ SAPP_KEYCODE_BACKSLASH = 92, /* \ */
+ SAPP_KEYCODE_RIGHT_BRACKET = 93, /* ] */
+ SAPP_KEYCODE_GRAVE_ACCENT = 96, /* ` */
+ SAPP_KEYCODE_WORLD_1 = 161, /* non-US #1 */
+ SAPP_KEYCODE_WORLD_2 = 162, /* non-US #2 */
+ SAPP_KEYCODE_ESCAPE = 256,
+ SAPP_KEYCODE_ENTER = 257,
+ SAPP_KEYCODE_TAB = 258,
+ SAPP_KEYCODE_BACKSPACE = 259,
+ SAPP_KEYCODE_INSERT = 260,
+ SAPP_KEYCODE_DELETE = 261,
+ SAPP_KEYCODE_RIGHT = 262,
+ SAPP_KEYCODE_LEFT = 263,
+ SAPP_KEYCODE_DOWN = 264,
+ SAPP_KEYCODE_UP = 265,
+ SAPP_KEYCODE_PAGE_UP = 266,
+ SAPP_KEYCODE_PAGE_DOWN = 267,
+ SAPP_KEYCODE_HOME = 268,
+ SAPP_KEYCODE_END = 269,
+ SAPP_KEYCODE_CAPS_LOCK = 280,
+ SAPP_KEYCODE_SCROLL_LOCK = 281,
+ SAPP_KEYCODE_NUM_LOCK = 282,
+ SAPP_KEYCODE_PRINT_SCREEN = 283,
+ SAPP_KEYCODE_PAUSE = 284,
+ SAPP_KEYCODE_F1 = 290,
+ SAPP_KEYCODE_F2 = 291,
+ SAPP_KEYCODE_F3 = 292,
+ SAPP_KEYCODE_F4 = 293,
+ SAPP_KEYCODE_F5 = 294,
+ SAPP_KEYCODE_F6 = 295,
+ SAPP_KEYCODE_F7 = 296,
+ SAPP_KEYCODE_F8 = 297,
+ SAPP_KEYCODE_F9 = 298,
+ SAPP_KEYCODE_F10 = 299,
+ SAPP_KEYCODE_F11 = 300,
+ SAPP_KEYCODE_F12 = 301,
+ SAPP_KEYCODE_F13 = 302,
+ SAPP_KEYCODE_F14 = 303,
+ SAPP_KEYCODE_F15 = 304,
+ SAPP_KEYCODE_F16 = 305,
+ SAPP_KEYCODE_F17 = 306,
+ SAPP_KEYCODE_F18 = 307,
+ SAPP_KEYCODE_F19 = 308,
+ SAPP_KEYCODE_F20 = 309,
+ SAPP_KEYCODE_F21 = 310,
+ SAPP_KEYCODE_F22 = 311,
+ SAPP_KEYCODE_F23 = 312,
+ SAPP_KEYCODE_F24 = 313,
+ SAPP_KEYCODE_F25 = 314,
+ SAPP_KEYCODE_KP_0 = 320,
+ SAPP_KEYCODE_KP_1 = 321,
+ SAPP_KEYCODE_KP_2 = 322,
+ SAPP_KEYCODE_KP_3 = 323,
+ SAPP_KEYCODE_KP_4 = 324,
+ SAPP_KEYCODE_KP_5 = 325,
+ SAPP_KEYCODE_KP_6 = 326,
+ SAPP_KEYCODE_KP_7 = 327,
+ SAPP_KEYCODE_KP_8 = 328,
+ SAPP_KEYCODE_KP_9 = 329,
+ SAPP_KEYCODE_KP_DECIMAL = 330,
+ SAPP_KEYCODE_KP_DIVIDE = 331,
+ SAPP_KEYCODE_KP_MULTIPLY = 332,
+ SAPP_KEYCODE_KP_SUBTRACT = 333,
+ SAPP_KEYCODE_KP_ADD = 334,
+ SAPP_KEYCODE_KP_ENTER = 335,
+ SAPP_KEYCODE_KP_EQUAL = 336,
+ SAPP_KEYCODE_LEFT_SHIFT = 340,
+ SAPP_KEYCODE_LEFT_CONTROL = 341,
+ SAPP_KEYCODE_LEFT_ALT = 342,
+ SAPP_KEYCODE_LEFT_SUPER = 343,
+ SAPP_KEYCODE_RIGHT_SHIFT = 344,
+ SAPP_KEYCODE_RIGHT_CONTROL = 345,
+ SAPP_KEYCODE_RIGHT_ALT = 346,
+ SAPP_KEYCODE_RIGHT_SUPER = 347,
+ SAPP_KEYCODE_MENU = 348,
+} sapp_keycode;
+
+/*
+ Android specific 'tool type' enum for touch events. This lets the
+ application check what type of input device was used for
+ touch events.
+
+ NOTE: the values must remain in sync with the corresponding
+ Android SDK type, so don't change those.
+
+ See https://developer.android.com/reference/android/view/MotionEvent#TOOL_TYPE_UNKNOWN
+*/
+typedef enum sapp_android_tooltype {
+ SAPP_ANDROIDTOOLTYPE_UNKNOWN = 0, // TOOL_TYPE_UNKNOWN
+ SAPP_ANDROIDTOOLTYPE_FINGER = 1, // TOOL_TYPE_FINGER
+ SAPP_ANDROIDTOOLTYPE_STYLUS = 2, // TOOL_TYPE_STYLUS
+ SAPP_ANDROIDTOOLTYPE_MOUSE = 3, // TOOL_TYPE_MOUSE
+} sapp_android_tooltype;
+
+/*
+ sapp_touchpoint
+
+ Describes a single touchpoint in a multitouch event (TOUCHES_BEGAN,
+ TOUCHES_MOVED, TOUCHES_ENDED).
+
+ Touch points are stored in the nested array sapp_event.touches[],
+ and the number of touches is stored in sapp_event.num_touches.
+*/
+typedef struct sapp_touchpoint {
+ uintptr_t identifier;
+ float pos_x;
+ float pos_y;
+ sapp_android_tooltype android_tooltype; // only valid on Android
+ bool changed;
+} sapp_touchpoint;
+
+/*
+ sapp_mousebutton
+
+ The currently pressed mouse button in the events MOUSE_DOWN
+ and MOUSE_UP, stored in the struct field sapp_event.mouse_button.
+*/
+typedef enum sapp_mousebutton {
+ SAPP_MOUSEBUTTON_LEFT = 0x0,
+ SAPP_MOUSEBUTTON_RIGHT = 0x1,
+ SAPP_MOUSEBUTTON_MIDDLE = 0x2,
+ SAPP_MOUSEBUTTON_INVALID = 0x100,
+} sapp_mousebutton;
+
+/*
+ These are currently pressed modifier keys (and mouse buttons) which are
+ passed in the event struct field sapp_event.modifiers.
+*/
+enum {
+ SAPP_MODIFIER_SHIFT = 0x1, // left or right shift key
+ SAPP_MODIFIER_CTRL = 0x2, // left or right control key
+ SAPP_MODIFIER_ALT = 0x4, // left or right alt key
+ SAPP_MODIFIER_SUPER = 0x8, // left or right 'super' key
+ SAPP_MODIFIER_LMB = 0x100, // left mouse button
+ SAPP_MODIFIER_RMB = 0x200, // right mouse button
+ SAPP_MODIFIER_MMB = 0x400, // middle mouse button
+};
+
+/*
+ sapp_event
+
+ This is an all-in-one event struct passed to the event handler
+ user callback function. Note that it depends on the event
+ type what struct fields actually contain useful values, so you
+ should first check the event type before reading other struct
+ fields.
+*/
+typedef struct sapp_event {
+ uint64_t frame_count; // current frame counter, always valid, useful for checking if two events were issued in the same frame
+ sapp_event_type type; // the event type, always valid
+ sapp_keycode key_code; // the virtual key code, only valid in KEY_UP, KEY_DOWN
+ uint32_t char_code; // the UTF-32 character code, only valid in CHAR events
+ bool key_repeat; // true if this is a key-repeat event, valid in KEY_UP, KEY_DOWN and CHAR
+ uint32_t modifiers; // current modifier keys, valid in all key-, char- and mouse-events
+ sapp_mousebutton mouse_button; // mouse button that was pressed or released, valid in MOUSE_DOWN, MOUSE_UP
+ float mouse_x; // current horizontal mouse position in pixels, always valid except during mouse lock
+ float mouse_y; // current vertical mouse position in pixels, always valid except during mouse lock
+ float mouse_dx; // relative horizontal mouse movement since last frame, always valid
+ float mouse_dy; // relative vertical mouse movement since last frame, always valid
+ float scroll_x; // horizontal mouse wheel scroll distance, valid in MOUSE_SCROLL events
+ float scroll_y; // vertical mouse wheel scroll distance, valid in MOUSE_SCROLL events
+ int num_touches; // number of valid items in the touches[] array
+ sapp_touchpoint touches[SAPP_MAX_TOUCHPOINTS]; // current touch points, valid in TOUCHES_BEGIN, TOUCHES_MOVED, TOUCHES_ENDED
+ int window_width; // current window- and framebuffer sizes in pixels, always valid
+ int window_height;
+ int framebuffer_width; // = window_width * dpi_scale
+ int framebuffer_height; // = window_height * dpi_scale
+} sapp_event;
+
+/*
+ sg_range
+
+ A general pointer/size-pair struct and constructor macros for passing binary blobs
+ into sokol_app.h.
+*/
+typedef struct sapp_range {
+ const void* ptr;
+ size_t size;
+} sapp_range;
+// disabling this for every includer isn't great, but the warnings are also quite pointless
+#if defined(_MSC_VER)
+#pragma warning(disable:4221) /* /W4 only: nonstandard extension used: 'x': cannot be initialized using address of automatic variable 'y' */
+#pragma warning(disable:4204) /* VS2015: nonstandard extension used: non-constant aggregate initializer */
+#endif
+#if defined(__cplusplus)
+#define SAPP_RANGE(x) sapp_range{ &x, sizeof(x) }
+#else
+#define SAPP_RANGE(x) (sapp_range){ &x, sizeof(x) }
+#endif
+
+/*
+ sapp_image_desc
+
+ This is used to describe image data to sokol_app.h (at first, window
+ icons, later maybe cursor images).
+
+ Note that the actual image pixel format depends on the use case:
+
+ - window icon pixels are RGBA8
+ - cursor images are ??? (FIXME)
+*/
+typedef struct sapp_image_desc {
+ int width;
+ int height;
+ sapp_range pixels;
+} sapp_image_desc;
+
+/*
+ sapp_icon_desc
+
+ An icon description structure for use in sapp_desc.icon and
+ sapp_set_icon().
+
+ When setting a custom image, the application can provide a number of
+ candidates differing in size, and sokol_app.h will pick the image(s)
+ closest to the size expected by the platform's window system.
+
+ To set sokol-app's default icon, set .sokol_default to true.
+
+ Otherwise provide candidate images of different sizes in the
+ images[] array.
+
+ If both the sokol_default flag is set to true, any image candidates
+ will be ignored and the sokol_app.h default icon will be set.
+*/
+typedef struct sapp_icon_desc {
+ bool sokol_default;
+ sapp_image_desc images[SAPP_MAX_ICONIMAGES];
+} sapp_icon_desc;
+
+/*
+ sapp_allocator
+
+ Used in sapp_desc to provide custom memory-alloc and -free functions
+ to sokol_app.h. If memory management should be overridden, both the
+ alloc and free function must be provided (e.g. it's not valid to
+ override one function but not the other).
+*/
+typedef struct sapp_allocator {
+ void* (*alloc)(size_t size, void* user_data);
+ void (*free)(void* ptr, void* user_data);
+ void* user_data;
+} sapp_allocator;
+
+/*
+ sapp_log_item
+
+ Log items are defined via X-Macros and expanded to an enum
+ 'sapp_log_item', and in debug mode to corresponding
+ human readable error messages.
+*/
+#define _SAPP_LOG_ITEMS \
+ _SAPP_LOGITEM_XMACRO(OK, "Ok") \
+ _SAPP_LOGITEM_XMACRO(MALLOC_FAILED, "memory allocation failed") \
+ _SAPP_LOGITEM_XMACRO(MACOS_INVALID_NSOPENGL_PROFILE, "macos: invalid NSOpenGLProfile (valid choices are 1.0, 3.2 and 4.1)") \
+ _SAPP_LOGITEM_XMACRO(WIN32_LOAD_OPENGL32_DLL_FAILED, "failed loading opengl32.dll") \
+ _SAPP_LOGITEM_XMACRO(WIN32_CREATE_HELPER_WINDOW_FAILED, "failed to create helper window") \
+ _SAPP_LOGITEM_XMACRO(WIN32_HELPER_WINDOW_GETDC_FAILED, "failed to get helper window DC") \
+ _SAPP_LOGITEM_XMACRO(WIN32_DUMMY_CONTEXT_SET_PIXELFORMAT_FAILED, "failed to set pixel format for dummy GL context") \
+ _SAPP_LOGITEM_XMACRO(WIN32_CREATE_DUMMY_CONTEXT_FAILED, "failed to create dummy GL context") \
+ _SAPP_LOGITEM_XMACRO(WIN32_DUMMY_CONTEXT_MAKE_CURRENT_FAILED, "failed to make dummy GL context current") \
+ _SAPP_LOGITEM_XMACRO(WIN32_GET_PIXELFORMAT_ATTRIB_FAILED, "failed to get WGL pixel format attribute") \
+ _SAPP_LOGITEM_XMACRO(WIN32_WGL_FIND_PIXELFORMAT_FAILED, "failed to find matching WGL pixel format") \
+ _SAPP_LOGITEM_XMACRO(WIN32_WGL_DESCRIBE_PIXELFORMAT_FAILED, "failed to get pixel format descriptor") \
+ _SAPP_LOGITEM_XMACRO(WIN32_WGL_SET_PIXELFORMAT_FAILED, "failed to set selected pixel format") \
+ _SAPP_LOGITEM_XMACRO(WIN32_WGL_ARB_CREATE_CONTEXT_REQUIRED, "ARB_create_context required") \
+ _SAPP_LOGITEM_XMACRO(WIN32_WGL_ARB_CREATE_CONTEXT_PROFILE_REQUIRED, "ARB_create_context_profile required") \
+ _SAPP_LOGITEM_XMACRO(WIN32_WGL_OPENGL_3_2_NOT_SUPPORTED, "OpenGL 3.2 not supported by GL driver (ERROR_INVALID_VERSION_ARB)") \
+ _SAPP_LOGITEM_XMACRO(WIN32_WGL_OPENGL_PROFILE_NOT_SUPPORTED, "requested OpenGL profile not support by GL driver (ERROR_INVALID_PROFILE_ARB)") \
+ _SAPP_LOGITEM_XMACRO(WIN32_WGL_INCOMPATIBLE_DEVICE_CONTEXT, "CreateContextAttribsARB failed with ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB") \
+ _SAPP_LOGITEM_XMACRO(WIN32_WGL_CREATE_CONTEXT_ATTRIBS_FAILED_OTHER, "CreateContextAttribsARB failed for other reason") \
+ _SAPP_LOGITEM_XMACRO(WIN32_D3D11_CREATE_DEVICE_AND_SWAPCHAIN_WITH_DEBUG_FAILED, "D3D11CreateDeviceAndSwapChain() with D3D11_CREATE_DEVICE_DEBUG failed, retrying without debug flag.") \
+ _SAPP_LOGITEM_XMACRO(WIN32_D3D11_GET_IDXGIFACTORY_FAILED, "could not obtain IDXGIFactory object") \
+ _SAPP_LOGITEM_XMACRO(WIN32_D3D11_GET_IDXGIADAPTER_FAILED, "could not obtain IDXGIAdapter object") \
+ _SAPP_LOGITEM_XMACRO(WIN32_D3D11_QUERY_INTERFACE_IDXGIDEVICE1_FAILED, "could not obtain IDXGIDevice1 interface") \
+ _SAPP_LOGITEM_XMACRO(WIN32_REGISTER_RAW_INPUT_DEVICES_FAILED_MOUSE_LOCK, "RegisterRawInputDevices() failed (on mouse lock)") \
+ _SAPP_LOGITEM_XMACRO(WIN32_REGISTER_RAW_INPUT_DEVICES_FAILED_MOUSE_UNLOCK, "RegisterRawInputDevices() failed (on mouse unlock)") \
+ _SAPP_LOGITEM_XMACRO(WIN32_GET_RAW_INPUT_DATA_FAILED, "GetRawInputData() failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_GLX_LOAD_LIBGL_FAILED, "failed to load libGL") \
+ _SAPP_LOGITEM_XMACRO(LINUX_GLX_LOAD_ENTRY_POINTS_FAILED, "failed to load GLX entry points") \
+ _SAPP_LOGITEM_XMACRO(LINUX_GLX_EXTENSION_NOT_FOUND, "GLX extension not found") \
+ _SAPP_LOGITEM_XMACRO(LINUX_GLX_QUERY_VERSION_FAILED, "failed to query GLX version") \
+ _SAPP_LOGITEM_XMACRO(LINUX_GLX_VERSION_TOO_LOW, "GLX version too low (need at least 1.3)") \
+ _SAPP_LOGITEM_XMACRO(LINUX_GLX_NO_GLXFBCONFIGS, "glXGetFBConfigs() returned no configs") \
+ _SAPP_LOGITEM_XMACRO(LINUX_GLX_NO_SUITABLE_GLXFBCONFIG, "failed to find a suitable GLXFBConfig") \
+ _SAPP_LOGITEM_XMACRO(LINUX_GLX_GET_VISUAL_FROM_FBCONFIG_FAILED, "glXGetVisualFromFBConfig failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_GLX_REQUIRED_EXTENSIONS_MISSING, "GLX extensions ARB_create_context and ARB_create_context_profile missing") \
+ _SAPP_LOGITEM_XMACRO(LINUX_GLX_CREATE_CONTEXT_FAILED, "Failed to create GL context via glXCreateContextAttribsARB") \
+ _SAPP_LOGITEM_XMACRO(LINUX_GLX_CREATE_WINDOW_FAILED, "glXCreateWindow() failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_X11_CREATE_WINDOW_FAILED, "XCreateWindow() failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_EGL_BIND_OPENGL_API_FAILED, "eglBindAPI(EGL_OPENGL_API) failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_EGL_BIND_OPENGL_ES_API_FAILED, "eglBindAPI(EGL_OPENGL_ES_API) failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_EGL_GET_DISPLAY_FAILED, "eglGetDisplay() failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_EGL_INITIALIZE_FAILED, "eglInitialize() failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_EGL_NO_CONFIGS, "eglChooseConfig() returned no configs") \
+ _SAPP_LOGITEM_XMACRO(LINUX_EGL_NO_NATIVE_VISUAL, "eglGetConfigAttrib() for EGL_NATIVE_VISUAL_ID failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_EGL_GET_VISUAL_INFO_FAILED, "XGetVisualInfo() failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_EGL_CREATE_WINDOW_SURFACE_FAILED, "eglCreateWindowSurface() failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_EGL_CREATE_CONTEXT_FAILED, "eglCreateContext() failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_EGL_MAKE_CURRENT_FAILED, "eglMakeCurrent() failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_X11_OPEN_DISPLAY_FAILED, "XOpenDisplay() failed") \
+ _SAPP_LOGITEM_XMACRO(LINUX_X11_QUERY_SYSTEM_DPI_FAILED, "failed to query system dpi value, assuming default 96.0") \
+ _SAPP_LOGITEM_XMACRO(LINUX_X11_DROPPED_FILE_URI_WRONG_SCHEME, "dropped file URL doesn't start with 'file://'") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_UNSUPPORTED_INPUT_EVENT_INPUT_CB, "unsupported input event encountered in _sapp_android_input_cb()") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_UNSUPPORTED_INPUT_EVENT_MAIN_CB, "unsupported input event encountered in _sapp_android_main_cb()") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_READ_MSG_FAILED, "failed to read message in _sapp_android_main_cb()") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_WRITE_MSG_FAILED, "failed to write message in _sapp_android_msg") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_MSG_CREATE, "MSG_CREATE") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_MSG_RESUME, "MSG_RESUME") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_MSG_PAUSE, "MSG_PAUSE") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_MSG_FOCUS, "MSG_FOCUS") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_MSG_NO_FOCUS, "MSG_NO_FOCUS") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_MSG_SET_NATIVE_WINDOW, "MSG_SET_NATIVE_WINDOW") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_MSG_SET_INPUT_QUEUE, "MSG_SET_INPUT_QUEUE") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_MSG_DESTROY, "MSG_DESTROY") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_UNKNOWN_MSG, "unknown msg type received") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_LOOP_THREAD_STARTED, "loop thread started") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_LOOP_THREAD_DONE, "loop thread done") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONSTART, "NativeActivity onStart()") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONRESUME, "NativeActivity onResume") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONSAVEINSTANCESTATE, "NativeActivity onSaveInstanceState") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONWINDOWFOCUSCHANGED, "NativeActivity onWindowFocusChanged") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONPAUSE, "NativeActivity onPause") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONSTOP, "NativeActivity onStop()") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONNATIVEWINDOWCREATED, "NativeActivity onNativeWindowCreated") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONNATIVEWINDOWDESTROYED, "NativeActivity onNativeWindowDestroyed") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONINPUTQUEUECREATED, "NativeActivity onInputQueueCreated") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONINPUTQUEUEDESTROYED, "NativeActivity onInputQueueDestroyed") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONCONFIGURATIONCHANGED, "NativeActivity onConfigurationChanged") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONLOWMEMORY, "NativeActivity onLowMemory") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONDESTROY, "NativeActivity onDestroy") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_DONE, "NativeActivity done") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_ONCREATE, "NativeActivity onCreate") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_CREATE_THREAD_PIPE_FAILED, "failed to create thread pipe") \
+ _SAPP_LOGITEM_XMACRO(ANDROID_NATIVE_ACTIVITY_CREATE_SUCCESS, "NativeActivity sucessfully created") \
+ _SAPP_LOGITEM_XMACRO(IMAGE_DATA_SIZE_MISMATCH, "image data size mismatch (must be width*height*4 bytes)") \
+ _SAPP_LOGITEM_XMACRO(DROPPED_FILE_PATH_TOO_LONG, "dropped file path too long (sapp_desc.max_dropped_filed_path_length)") \
+ _SAPP_LOGITEM_XMACRO(CLIPBOARD_STRING_TOO_BIG, "clipboard string didn't fit into clipboard buffer") \
+
+#define _SAPP_LOGITEM_XMACRO(item,msg) SAPP_LOGITEM_##item,
+typedef enum sapp_log_item {
+ _SAPP_LOG_ITEMS
+} sapp_log_item;
+#undef _SAPP_LOGITEM_XMACRO
+
+/*
+ sapp_logger
+
+ Used in sapp_desc to provide a logging function. Please be aware that
+ without logging function, sokol-app will be completely silent, e.g. it will
+ not report errors or warnings. For maximum error verbosity, compile in
+ debug mode (e.g. NDEBUG *not* defined) and install a logger (for instance
+ the standard logging function from sokol_log.h).
+*/
+typedef struct sapp_logger {
+ void (*func)(
+ const char* tag, // always "sapp"
+ uint32_t log_level, // 0=panic, 1=error, 2=warning, 3=info
+ uint32_t log_item_id, // SAPP_LOGITEM_*
+ const char* message_or_null, // a message string, may be nullptr in release mode
+ uint32_t line_nr, // line number in sokol_app.h
+ const char* filename_or_null, // source filename, may be nullptr in release mode
+ void* user_data);
+ void* user_data;
+} sapp_logger;
+
+typedef struct sapp_desc {
+ void (*init_cb)(void); // these are the user-provided callbacks without user data
+ void (*frame_cb)(void);
+ void (*cleanup_cb)(void);
+ void (*event_cb)(const sapp_event*);
+
+ void* user_data; // these are the user-provided callbacks with user data
+ void (*init_userdata_cb)(void*);
+ void (*frame_userdata_cb)(void*);
+ void (*cleanup_userdata_cb)(void*);
+ void (*event_userdata_cb)(const sapp_event*, void*);
+
+ int width; // the preferred width of the window / canvas
+ int height; // the preferred height of the window / canvas
+ int sample_count; // MSAA sample count
+ int swap_interval; // the preferred swap interval (ignored on some platforms)
+ bool high_dpi; // whether the rendering canvas is full-resolution on HighDPI displays
+ bool fullscreen; // whether the window should be created in fullscreen mode
+ bool alpha; // whether the framebuffer should have an alpha channel (ignored on some platforms)
+ const char* window_title; // the window title as UTF-8 encoded string
+ bool enable_clipboard; // enable clipboard access, default is false
+ int clipboard_size; // max size of clipboard content in bytes
+ bool enable_dragndrop; // enable file dropping (drag'n'drop), default is false
+ int max_dropped_files; // max number of dropped files to process (default: 1)
+ int max_dropped_file_path_length; // max length in bytes of a dropped UTF-8 file path (default: 2048)
+ sapp_icon_desc icon; // the initial window icon to set
+ sapp_allocator allocator; // optional memory allocation overrides (default: malloc/free)
+ sapp_logger logger; // logging callback override (default: NO LOGGING!)
+
+ /* backend-specific options */
+ int gl_major_version; // override GL major and minor version (the default GL version is 3.2)
+ int gl_minor_version;
+ bool win32_console_utf8; // if true, set the output console codepage to UTF-8
+ bool win32_console_create; // if true, attach stdout/stderr to a new console window
+ bool win32_console_attach; // if true, attach stdout/stderr to parent process
+ const char* html5_canvas_name; // the name (id) of the HTML5 canvas element, default is "canvas"
+ bool html5_canvas_resize; // if true, the HTML5 canvas size is set to sapp_desc.width/height, otherwise canvas size is tracked
+ bool html5_preserve_drawing_buffer; // HTML5 only: whether to preserve default framebuffer content between frames
+ bool html5_premultiplied_alpha; // HTML5 only: whether the rendered pixels use premultiplied alpha convention
+ bool html5_ask_leave_site; // initial state of the internal html5_ask_leave_site flag (see sapp_html5_ask_leave_site())
+ bool ios_keyboard_resizes_canvas; // if true, showing the iOS keyboard shrinks the canvas
+} sapp_desc;
+
+/* HTML5 specific: request and response structs for
+ asynchronously loading dropped-file content.
+*/
+typedef enum sapp_html5_fetch_error {
+ SAPP_HTML5_FETCH_ERROR_NO_ERROR,
+ SAPP_HTML5_FETCH_ERROR_BUFFER_TOO_SMALL,
+ SAPP_HTML5_FETCH_ERROR_OTHER,
+} sapp_html5_fetch_error;
+
+typedef struct sapp_html5_fetch_response {
+ bool succeeded; // true if the loading operation has succeeded
+ sapp_html5_fetch_error error_code;
+ int file_index; // index of the dropped file (0..sapp_get_num_dropped_filed()-1)
+ sapp_range data; // pointer and size of the fetched data (data.ptr == buffer.ptr, data.size <= buffer.size)
+ sapp_range buffer; // the user-provided buffer ptr/size pair (buffer.ptr == data.ptr, buffer.size >= data.size)
+ void* user_data; // user-provided user data pointer
+} sapp_html5_fetch_response;
+
+typedef struct sapp_html5_fetch_request {
+ int dropped_file_index; // 0..sapp_get_num_dropped_files()-1
+ void (*callback)(const sapp_html5_fetch_response*); // response callback function pointer (required)
+ sapp_range buffer; // ptr/size of a memory buffer to load the data into
+ void* user_data; // optional userdata pointer
+} sapp_html5_fetch_request;
+
+/*
+ sapp_mouse_cursor
+
+ Predefined cursor image definitions, set with sapp_set_mouse_cursor(sapp_mouse_cursor cursor)
+*/
+typedef enum sapp_mouse_cursor {
+ SAPP_MOUSECURSOR_DEFAULT = 0, // equivalent with system default cursor
+ SAPP_MOUSECURSOR_ARROW,
+ SAPP_MOUSECURSOR_IBEAM,
+ SAPP_MOUSECURSOR_CROSSHAIR,
+ SAPP_MOUSECURSOR_POINTING_HAND,
+ SAPP_MOUSECURSOR_RESIZE_EW,
+ SAPP_MOUSECURSOR_RESIZE_NS,
+ SAPP_MOUSECURSOR_RESIZE_NWSE,
+ SAPP_MOUSECURSOR_RESIZE_NESW,
+ SAPP_MOUSECURSOR_RESIZE_ALL,
+ SAPP_MOUSECURSOR_NOT_ALLOWED,
+ _SAPP_MOUSECURSOR_NUM,
+} sapp_mouse_cursor;
+
+/* user-provided functions */
+extern sapp_desc sokol_main(int argc, char* argv[]);
+
+/* returns true after sokol-app has been initialized */
+SOKOL_APP_API_DECL bool sapp_isvalid(void);
+/* returns the current framebuffer width in pixels */
+SOKOL_APP_API_DECL int sapp_width(void);
+/* same as sapp_width(), but returns float */
+SOKOL_APP_API_DECL float sapp_widthf(void);
+/* returns the current framebuffer height in pixels */
+SOKOL_APP_API_DECL int sapp_height(void);
+/* same as sapp_height(), but returns float */
+SOKOL_APP_API_DECL float sapp_heightf(void);
+/* get default framebuffer color pixel format */
+SOKOL_APP_API_DECL int sapp_color_format(void);
+/* get default framebuffer depth pixel format */
+SOKOL_APP_API_DECL int sapp_depth_format(void);
+/* get default framebuffer sample count */
+SOKOL_APP_API_DECL int sapp_sample_count(void);
+/* returns true when high_dpi was requested and actually running in a high-dpi scenario */
+SOKOL_APP_API_DECL bool sapp_high_dpi(void);
+/* returns the dpi scaling factor (window pixels to framebuffer pixels) */
+SOKOL_APP_API_DECL float sapp_dpi_scale(void);
+/* show or hide the mobile device onscreen keyboard */
+SOKOL_APP_API_DECL void sapp_show_keyboard(bool show);
+/* return true if the mobile device onscreen keyboard is currently shown */
+SOKOL_APP_API_DECL bool sapp_keyboard_shown(void);
+/* query fullscreen mode */
+SOKOL_APP_API_DECL bool sapp_is_fullscreen(void);
+/* toggle fullscreen mode */
+SOKOL_APP_API_DECL void sapp_toggle_fullscreen(void);
+/* show or hide the mouse cursor */
+SOKOL_APP_API_DECL void sapp_show_mouse(bool show);
+/* show or hide the mouse cursor */
+SOKOL_APP_API_DECL bool sapp_mouse_shown(void);
+/* enable/disable mouse-pointer-lock mode */
+SOKOL_APP_API_DECL void sapp_lock_mouse(bool lock);
+/* return true if in mouse-pointer-lock mode (this may toggle a few frames later) */
+SOKOL_APP_API_DECL bool sapp_mouse_locked(void);
+/* set mouse cursor type */
+SOKOL_APP_API_DECL void sapp_set_mouse_cursor(sapp_mouse_cursor cursor);
+/* get current mouse cursor type */
+SOKOL_APP_API_DECL sapp_mouse_cursor sapp_get_mouse_cursor(void);
+/* return the userdata pointer optionally provided in sapp_desc */
+SOKOL_APP_API_DECL void* sapp_userdata(void);
+/* return a copy of the sapp_desc structure */
+SOKOL_APP_API_DECL sapp_desc sapp_query_desc(void);
+/* initiate a "soft quit" (sends SAPP_EVENTTYPE_QUIT_REQUESTED) */
+SOKOL_APP_API_DECL void sapp_request_quit(void);
+/* cancel a pending quit (when SAPP_EVENTTYPE_QUIT_REQUESTED has been received) */
+SOKOL_APP_API_DECL void sapp_cancel_quit(void);
+/* initiate a "hard quit" (quit application without sending SAPP_EVENTTYPE_QUIT_REQUSTED) */
+SOKOL_APP_API_DECL void sapp_quit(void);
+/* call from inside event callback to consume the current event (don't forward to platform) */
+SOKOL_APP_API_DECL void sapp_consume_event(void);
+/* get the current frame counter (for comparison with sapp_event.frame_count) */
+SOKOL_APP_API_DECL uint64_t sapp_frame_count(void);
+/* get an averaged/smoothed frame duration in seconds */
+SOKOL_APP_API_DECL double sapp_frame_duration(void);
+/* write string into clipboard */
+SOKOL_APP_API_DECL void sapp_set_clipboard_string(const char* str);
+/* read string from clipboard (usually during SAPP_EVENTTYPE_CLIPBOARD_PASTED) */
+SOKOL_APP_API_DECL const char* sapp_get_clipboard_string(void);
+/* set the window title (only on desktop platforms) */
+SOKOL_APP_API_DECL void sapp_set_window_title(const char* str);
+/* set the window icon (only on Windows and Linux) */
+SOKOL_APP_API_DECL void sapp_set_icon(const sapp_icon_desc* icon_desc);
+/* gets the total number of dropped files (after an SAPP_EVENTTYPE_FILES_DROPPED event) */
+SOKOL_APP_API_DECL int sapp_get_num_dropped_files(void);
+/* gets the dropped file paths */
+SOKOL_APP_API_DECL const char* sapp_get_dropped_file_path(int index);
+
+/* special run-function for SOKOL_NO_ENTRY (in standard mode this is an empty stub) */
+SOKOL_APP_API_DECL void sapp_run(const sapp_desc* desc);
+
+/* EGL: get EGLDisplay object */
+SOKOL_APP_API_DECL const void* sapp_egl_get_display(void);
+/* EGL: get EGLContext object */
+SOKOL_APP_API_DECL const void* sapp_egl_get_context(void);
+
+/* HTML5: enable or disable the hardwired "Leave Site?" dialog box */
+SOKOL_APP_API_DECL void sapp_html5_ask_leave_site(bool ask);
+/* HTML5: get byte size of a dropped file */
+SOKOL_APP_API_DECL uint32_t sapp_html5_get_dropped_file_size(int index);
+/* HTML5: asynchronously load the content of a dropped file */
+SOKOL_APP_API_DECL void sapp_html5_fetch_dropped_file(const sapp_html5_fetch_request* request);
+
+/* Metal: get bridged pointer to Metal device object */
+SOKOL_APP_API_DECL const void* sapp_metal_get_device(void);
+/* Metal: get bridged pointer to this frame's renderpass descriptor */
+SOKOL_APP_API_DECL const void* sapp_metal_get_renderpass_descriptor(void);
+/* Metal: get bridged pointer to current drawable */
+SOKOL_APP_API_DECL const void* sapp_metal_get_drawable(void);
+/* macOS: get bridged pointer to macOS NSWindow */
+SOKOL_APP_API_DECL const void* sapp_macos_get_window(void);
+/* iOS: get bridged pointer to iOS UIWindow */
+SOKOL_APP_API_DECL const void* sapp_ios_get_window(void);
+
+/* D3D11: get pointer to ID3D11Device object */
+SOKOL_APP_API_DECL const void* sapp_d3d11_get_device(void);
+/* D3D11: get pointer to ID3D11DeviceContext object */
+SOKOL_APP_API_DECL const void* sapp_d3d11_get_device_context(void);
+/* D3D11: get pointer to IDXGISwapChain object */
+SOKOL_APP_API_DECL const void* sapp_d3d11_get_swap_chain(void);
+/* D3D11: get pointer to ID3D11RenderTargetView object */
+SOKOL_APP_API_DECL const void* sapp_d3d11_get_render_target_view(void);
+/* D3D11: get pointer to ID3D11DepthStencilView */
+SOKOL_APP_API_DECL const void* sapp_d3d11_get_depth_stencil_view(void);
+/* Win32: get the HWND window handle */
+SOKOL_APP_API_DECL const void* sapp_win32_get_hwnd(void);
+
+/* WebGPU: get WGPUDevice handle */
+SOKOL_APP_API_DECL const void* sapp_wgpu_get_device(void);
+/* WebGPU: get swapchain's WGPUTextureView handle for rendering */
+SOKOL_APP_API_DECL const void* sapp_wgpu_get_render_view(void);
+/* WebGPU: get swapchain's MSAA-resolve WGPUTextureView (may return null) */
+SOKOL_APP_API_DECL const void* sapp_wgpu_get_resolve_view(void);
+/* WebGPU: get swapchain's WGPUTextureView for the depth-stencil surface */
+SOKOL_APP_API_DECL const void* sapp_wgpu_get_depth_stencil_view(void);
+
+/* Android: get native activity handle */
+SOKOL_APP_API_DECL const void* sapp_android_get_native_activity(void);
+
+#ifdef __cplusplus
+} /* extern "C" */
+
+/* reference-based equivalents for C++ */
+inline void sapp_run(const sapp_desc& desc) { return sapp_run(&desc); }
+
+#endif
+
+// this WinRT specific hack is required when wWinMain is in a static library
+#if defined(_MSC_VER) && defined(UNICODE)
+#include <winapifamily.h>
+#if defined(WINAPI_FAMILY_PARTITION) && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+#pragma comment(linker, "/include:wWinMain")
+#endif
+#endif
+
+#endif // SOKOL_APP_INCLUDED
+
+// ██ ███ ███ ██████ ██ ███████ ███ ███ ███████ ███ ██ ████████ █████ ████████ ██ ██████ ███ ██
+// ██ ████ ████ ██ ██ ██ ██ ████ ████ ██ ████ ██ ██ ██ ██ ██ ██ ██ ██ ████ ██
+// ██ ██ ████ ██ ██████ ██ █████ ██ ████ ██ █████ ██ ██ ██ ██ ███████ ██ ██ ██ ██ ██ ██ ██
+// ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ██ ██ ██ ██ ███████ ███████ ██ ██ ███████ ██ ████ ██ ██ ██ ██ ██ ██████ ██ ████
+//
+// >>implementation
+#ifdef SOKOL_APP_IMPL
+#define SOKOL_APP_IMPL_INCLUDED (1)
+
+#if defined(SOKOL_MALLOC) || defined(SOKOL_CALLOC) || defined(SOKOL_FREE)
+#error "SOKOL_MALLOC/CALLOC/FREE macros are no longer supported, please use sapp_desc.allocator to override memory allocation functions"
+#endif
+
+#include <stdlib.h> // malloc, free
+#include <string.h> // memset
+#include <stddef.h> // size_t
+#include <math.h> // roundf
+
+/* check if the config defines are alright */
+#if defined(__APPLE__)
+ // see https://clang.llvm.org/docs/LanguageExtensions.html#automatic-reference-counting
+ #if !defined(__cplusplus)
+ #if __has_feature(objc_arc) && !__has_feature(objc_arc_fields)
+ #error "sokol_app.h requires __has_feature(objc_arc_field) if ARC is enabled (use a more recent compiler version)"
+ #endif
+ #endif
+ #define _SAPP_APPLE (1)
+ #include <TargetConditionals.h>
+ #if defined(TARGET_OS_IPHONE) && !TARGET_OS_IPHONE
+ /* MacOS */
+ #define _SAPP_MACOS (1)
+ #if !defined(SOKOL_METAL) && !defined(SOKOL_GLCORE33)
+ #error("sokol_app.h: unknown 3D API selected for MacOS, must be SOKOL_METAL or SOKOL_GLCORE33")
+ #endif
+ #else
+ /* iOS or iOS Simulator */
+ #define _SAPP_IOS (1)
+ #if !defined(SOKOL_METAL) && !defined(SOKOL_GLES3)
+ #error("sokol_app.h: unknown 3D API selected for iOS, must be SOKOL_METAL or SOKOL_GLES3")
+ #endif
+ #endif
+#elif defined(__EMSCRIPTEN__)
+ /* emscripten (asm.js or wasm) */
+ #define _SAPP_EMSCRIPTEN (1)
+ #if !defined(SOKOL_GLES3) && !defined(SOKOL_WGPU)
+ #error("sokol_app.h: unknown 3D API selected for emscripten, must be SOKOL_GLES3 or SOKOL_WGPU")
+ #endif
+#elif defined(_WIN32)
+ /* Windows (D3D11 or GL) */
+ #define _SAPP_WIN32 (1)
+ #if !defined(SOKOL_D3D11) && !defined(SOKOL_GLCORE33)
+ #error("sokol_app.h: unknown 3D API selected for Win32, must be SOKOL_D3D11 or SOKOL_GLCORE33")
+ #endif
+#elif defined(__ANDROID__)
+ /* Android */
+ #define _SAPP_ANDROID (1)
+ #if !defined(SOKOL_GLES3)
+ #error("sokol_app.h: unknown 3D API selected for Android, must be SOKOL_GLES3")
+ #endif
+ #if defined(SOKOL_NO_ENTRY)
+ #error("sokol_app.h: SOKOL_NO_ENTRY is not supported on Android")
+ #endif
+#elif defined(__linux__) || defined(__unix__)
+ /* Linux */
+ #define _SAPP_LINUX (1)
+ #if defined(SOKOL_GLCORE33)
+ #if !defined(SOKOL_FORCE_EGL)
+ #define _SAPP_GLX (1)
+ #endif
+ #elif !defined(SOKOL_GLES3)
+ #error("sokol_app.h: unknown 3D API selected for Linux, must be SOKOL_GLCORE33, SOKOL_GLES3")
+ #endif
+#else
+#error "sokol_app.h: Unknown platform"
+#endif
+
+#ifndef SOKOL_API_IMPL
+ #define SOKOL_API_IMPL
+#endif
+#ifndef SOKOL_DEBUG
+ #ifndef NDEBUG
+ #define SOKOL_DEBUG
+ #endif
+#endif
+#ifndef SOKOL_ASSERT
+ #include <assert.h>
+ #define SOKOL_ASSERT(c) assert(c)
+#endif
+#ifndef SOKOL_UNREACHABLE
+ #define SOKOL_UNREACHABLE SOKOL_ASSERT(false)
+#endif
+
+#ifndef _SOKOL_PRIVATE
+ #if defined(__GNUC__) || defined(__clang__)
+ #define _SOKOL_PRIVATE __attribute__((unused)) static
+ #else
+ #define _SOKOL_PRIVATE static
+ #endif
+#endif
+#ifndef _SOKOL_UNUSED
+ #define _SOKOL_UNUSED(x) (void)(x)
+#endif
+
+#if defined(_SAPP_APPLE)
+ #if defined(SOKOL_METAL)
+ #import <Metal/Metal.h>
+ #import <MetalKit/MetalKit.h>
+ #endif
+ #if defined(_SAPP_MACOS)
+ #if !defined(SOKOL_METAL)
+ #ifndef GL_SILENCE_DEPRECATION
+ #define GL_SILENCE_DEPRECATION
+ #endif
+ #include <Cocoa/Cocoa.h>
+ #endif
+ #elif defined(_SAPP_IOS)
+ #import <UIKit/UIKit.h>
+ #if !defined(SOKOL_METAL)
+ #import <GLKit/GLKit.h>
+ #endif
+ #endif
+ #include <AvailabilityMacros.h>
+ #include <mach/mach_time.h>
+#elif defined(_SAPP_EMSCRIPTEN)
+ #if defined(SOKOL_WGPU)
+ #include <webgpu/webgpu.h>
+ #endif
+ #include <emscripten/emscripten.h>
+ #include <emscripten/html5.h>
+#elif defined(_SAPP_WIN32)
+ #ifdef _MSC_VER
+ #pragma warning(push)
+ #pragma warning(disable:4201) /* nonstandard extension used: nameless struct/union */
+ #pragma warning(disable:4204) /* nonstandard extension used: non-constant aggregate initializer */
+ #pragma warning(disable:4054) /* 'type cast': from function pointer */
+ #pragma warning(disable:4055) /* 'type cast': from data pointer */
+ #pragma warning(disable:4505) /* unreferenced local function has been removed */
+ #pragma warning(disable:4115) /* /W4: 'ID3D11ModuleInstance': named type definition in parentheses (in d3d11.h) */
+ #endif
+ #ifndef WIN32_LEAN_AND_MEAN
+ #define WIN32_LEAN_AND_MEAN
+ #endif
+ #ifndef NOMINMAX
+ #define NOMINMAX
+ #endif
+ #include <windows.h>
+ #include <windowsx.h>
+ #include <shellapi.h>
+ #if !defined(SOKOL_NO_ENTRY) // if SOKOL_NO_ENTRY is defined, it's the applications' responsibility to use the right subsystem
+ #if defined(SOKOL_WIN32_FORCE_MAIN)
+ #pragma comment (linker, "/subsystem:console")
+ #else
+ #pragma comment (linker, "/subsystem:windows")
+ #endif
+ #endif
+ #include <stdio.h> /* freopen_s() */
+ #include <wchar.h> /* wcslen() */
+
+ #pragma comment (lib, "kernel32")
+ #pragma comment (lib, "user32")
+ #pragma comment (lib, "shell32") /* CommandLineToArgvW, DragQueryFileW, DragFinished */
+ #pragma comment (lib, "gdi32")
+ #if defined(SOKOL_D3D11)
+ #pragma comment (lib, "dxgi")
+ #pragma comment (lib, "d3d11")
+ #endif
+
+ #if defined(SOKOL_D3D11)
+ #ifndef D3D11_NO_HELPERS
+ #define D3D11_NO_HELPERS
+ #endif
+ #include <d3d11.h>
+ #include <dxgi.h>
+ // DXGI_SWAP_EFFECT_FLIP_DISCARD is only defined in newer Windows SDKs, so don't depend on it
+ #define _SAPP_DXGI_SWAP_EFFECT_FLIP_DISCARD (4)
+ #endif
+ #ifndef WM_MOUSEHWHEEL /* see https://github.com/floooh/sokol/issues/138 */
+ #define WM_MOUSEHWHEEL (0x020E)
+ #endif
+ #ifndef WM_DPICHANGED
+ #define WM_DPICHANGED (0x02E0)
+ #endif
+#elif defined(_SAPP_ANDROID)
+ #include <pthread.h>
+ #include <unistd.h>
+ #include <time.h>
+ #include <android/native_activity.h>
+ #include <android/looper.h>
+ #include <EGL/egl.h>
+#elif defined(_SAPP_LINUX)
+ #define GL_GLEXT_PROTOTYPES
+ #include <X11/Xlib.h>
+ #include <X11/Xutil.h>
+ #include <X11/XKBlib.h>
+ #include <X11/keysym.h>
+ #include <X11/Xresource.h>
+ #include <X11/Xatom.h>
+ #include <X11/extensions/XInput2.h>
+ #include <X11/Xcursor/Xcursor.h>
+ #include <X11/cursorfont.h> /* XC_* font cursors */
+ #include <X11/Xmd.h> /* CARD32 */
+ #if !defined(_SAPP_GLX)
+ #include <EGL/egl.h>
+ #endif
+ #include <dlfcn.h> /* dlopen, dlsym, dlclose */
+ #include <limits.h> /* LONG_MAX */
+ #include <pthread.h> /* only used a linker-guard, search for _sapp_linux_run() and see first comment */
+ #include <time.h>
+#endif
+
+// ███████ ██████ █████ ███ ███ ███████ ████████ ██ ███ ███ ██ ███ ██ ██████
+// ██ ██ ██ ██ ██ ████ ████ ██ ██ ██ ████ ████ ██ ████ ██ ██
+// █████ ██████ ███████ ██ ████ ██ █████ ██ ██ ██ ████ ██ ██ ██ ██ ██ ██ ███
+// ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ██ ██ ██ ██ ██ ██ ██ ███████ ██ ██ ██ ██ ██ ██ ████ ██████
+//
+// >>frame timing
+#define _SAPP_RING_NUM_SLOTS (256)
+typedef struct {
+ int head;
+ int tail;
+ double buf[_SAPP_RING_NUM_SLOTS];
+} _sapp_ring_t;
+
+_SOKOL_PRIVATE int _sapp_ring_idx(int i) {
+ return i % _SAPP_RING_NUM_SLOTS;
+}
+
+_SOKOL_PRIVATE void _sapp_ring_init(_sapp_ring_t* ring) {
+ ring->head = 0;
+ ring->tail = 0;
+}
+
+_SOKOL_PRIVATE bool _sapp_ring_full(_sapp_ring_t* ring) {
+ return _sapp_ring_idx(ring->head + 1) == ring->tail;
+}
+
+_SOKOL_PRIVATE bool _sapp_ring_empty(_sapp_ring_t* ring) {
+ return ring->head == ring->tail;
+}
+
+_SOKOL_PRIVATE int _sapp_ring_count(_sapp_ring_t* ring) {
+ int count;
+ if (ring->head >= ring->tail) {
+ count = ring->head - ring->tail;
+ }
+ else {
+ count = (ring->head + _SAPP_RING_NUM_SLOTS) - ring->tail;
+ }
+ SOKOL_ASSERT((count >= 0) && (count < _SAPP_RING_NUM_SLOTS));
+ return count;
+}
+
+_SOKOL_PRIVATE void _sapp_ring_enqueue(_sapp_ring_t* ring, double val) {
+ SOKOL_ASSERT(!_sapp_ring_full(ring));
+ ring->buf[ring->head] = val;
+ ring->head = _sapp_ring_idx(ring->head + 1);
+}
+
+_SOKOL_PRIVATE double _sapp_ring_dequeue(_sapp_ring_t* ring) {
+ SOKOL_ASSERT(!_sapp_ring_empty(ring));
+ double val = ring->buf[ring->tail];
+ ring->tail = _sapp_ring_idx(ring->tail + 1);
+ return val;
+}
+
+/*
+ NOTE:
+
+ Q: Why not use CAMetalDrawable.presentedTime on macOS and iOS?
+ A: The value appears to be highly unstable during the first few
+ seconds, sometimes several frames are dropped in sequence, or
+ switch between 120 and 60 Hz for a few frames. Simply measuring
+ and averaging the frame time yielded a more stable frame duration.
+ Maybe switching to CVDisplayLink would yield better results.
+ Until then just measure the time.
+*/
+typedef struct {
+ #if defined(_SAPP_APPLE)
+ struct {
+ mach_timebase_info_data_t timebase;
+ uint64_t start;
+ } mach;
+ #elif defined(_SAPP_EMSCRIPTEN)
+ // empty
+ #elif defined(_SAPP_WIN32)
+ struct {
+ LARGE_INTEGER freq;
+ LARGE_INTEGER start;
+ } win;
+ #else // Linux, Android, ...
+ #ifdef CLOCK_MONOTONIC
+ #define _SAPP_CLOCK_MONOTONIC CLOCK_MONOTONIC
+ #else
+ // on some embedded platforms, CLOCK_MONOTONIC isn't defined
+ #define _SAPP_CLOCK_MONOTONIC (1)
+ #endif
+ struct {
+ uint64_t start;
+ } posix;
+ #endif
+} _sapp_timestamp_t;
+
+_SOKOL_PRIVATE int64_t _sapp_int64_muldiv(int64_t value, int64_t numer, int64_t denom) {
+ int64_t q = value / denom;
+ int64_t r = value % denom;
+ return q * numer + r * numer / denom;
+}
+
+_SOKOL_PRIVATE void _sapp_timestamp_init(_sapp_timestamp_t* ts) {
+ #if defined(_SAPP_APPLE)
+ mach_timebase_info(&ts->mach.timebase);
+ ts->mach.start = mach_absolute_time();
+ #elif defined(_SAPP_EMSCRIPTEN)
+ (void)ts;
+ #elif defined(_SAPP_WIN32)
+ QueryPerformanceFrequency(&ts->win.freq);
+ QueryPerformanceCounter(&ts->win.start);
+ #else
+ struct timespec tspec;
+ clock_gettime(_SAPP_CLOCK_MONOTONIC, &tspec);
+ ts->posix.start = (uint64_t)tspec.tv_sec*1000000000 + (uint64_t)tspec.tv_nsec;
+ #endif
+}
+
+_SOKOL_PRIVATE double _sapp_timestamp_now(_sapp_timestamp_t* ts) {
+ #if defined(_SAPP_APPLE)
+ const uint64_t traw = mach_absolute_time() - ts->mach.start;
+ const uint64_t now = (uint64_t) _sapp_int64_muldiv((int64_t)traw, (int64_t)ts->mach.timebase.numer, (int64_t)ts->mach.timebase.denom);
+ return (double)now / 1000000000.0;
+ #elif defined(_SAPP_EMSCRIPTEN)
+ (void)ts;
+ SOKOL_ASSERT(false);
+ return 0.0;
+ #elif defined(_SAPP_WIN32)
+ LARGE_INTEGER qpc;
+ QueryPerformanceCounter(&qpc);
+ const uint64_t now = (uint64_t)_sapp_int64_muldiv(qpc.QuadPart - ts->win.start.QuadPart, 1000000000, ts->win.freq.QuadPart);
+ return (double)now / 1000000000.0;
+ #else
+ struct timespec tspec;
+ clock_gettime(_SAPP_CLOCK_MONOTONIC, &tspec);
+ const uint64_t now = ((uint64_t)tspec.tv_sec*1000000000 + (uint64_t)tspec.tv_nsec) - ts->posix.start;
+ return (double)now / 1000000000.0;
+ #endif
+}
+
+typedef struct {
+ double last;
+ double accum;
+ double avg;
+ int spike_count;
+ int num;
+ _sapp_timestamp_t timestamp;
+ _sapp_ring_t ring;
+} _sapp_timing_t;
+
+_SOKOL_PRIVATE void _sapp_timing_reset(_sapp_timing_t* t) {
+ t->last = 0.0;
+ t->accum = 0.0;
+ t->spike_count = 0;
+ t->num = 0;
+ _sapp_ring_init(&t->ring);
+}
+
+_SOKOL_PRIVATE void _sapp_timing_init(_sapp_timing_t* t) {
+ t->avg = 1.0 / 60.0; // dummy value until first actual value is available
+ _sapp_timing_reset(t);
+ _sapp_timestamp_init(&t->timestamp);
+}
+
+_SOKOL_PRIVATE void _sapp_timing_put(_sapp_timing_t* t, double dur) {
+ // arbitrary upper limit to ignore outliers (e.g. during window resizing, or debugging)
+ double min_dur = 0.0;
+ double max_dur = 0.1;
+ // if we have enough samples for a useful average, use a much tighter 'valid window'
+ if (_sapp_ring_full(&t->ring)) {
+ min_dur = t->avg * 0.8;
+ max_dur = t->avg * 1.2;
+ }
+ if ((dur < min_dur) || (dur > max_dur)) {
+ t->spike_count++;
+ // if there have been many spikes in a row, the display refresh rate
+ // might have changed, so a timing reset is needed
+ if (t->spike_count > 20) {
+ _sapp_timing_reset(t);
+ }
+ return;
+ }
+ if (_sapp_ring_full(&t->ring)) {
+ double old_val = _sapp_ring_dequeue(&t->ring);
+ t->accum -= old_val;
+ t->num -= 1;
+ }
+ _sapp_ring_enqueue(&t->ring, dur);
+ t->accum += dur;
+ t->num += 1;
+ SOKOL_ASSERT(t->num > 0);
+ t->avg = t->accum / t->num;
+ t->spike_count = 0;
+}
+
+_SOKOL_PRIVATE void _sapp_timing_discontinuity(_sapp_timing_t* t) {
+ t->last = 0.0;
+}
+
+_SOKOL_PRIVATE void _sapp_timing_measure(_sapp_timing_t* t) {
+ const double now = _sapp_timestamp_now(&t->timestamp);
+ if (t->last > 0.0) {
+ double dur = now - t->last;
+ _sapp_timing_put(t, dur);
+ }
+ t->last = now;
+}
+
+_SOKOL_PRIVATE void _sapp_timing_external(_sapp_timing_t* t, double now) {
+ if (t->last > 0.0) {
+ double dur = now - t->last;
+ _sapp_timing_put(t, dur);
+ }
+ t->last = now;
+}
+
+_SOKOL_PRIVATE double _sapp_timing_get_avg(_sapp_timing_t* t) {
+ return t->avg;
+}
+
+// ███████ ████████ ██████ ██ ██ ██████ ████████ ███████
+// ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ███████ ██ ██████ ██ ██ ██ ██ ███████
+// ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ███████ ██ ██ ██ ██████ ██████ ██ ███████
+//
+// >> structs
+#if defined(_SAPP_MACOS)
+@interface _sapp_macos_app_delegate : NSObject<NSApplicationDelegate>
+@end
+@interface _sapp_macos_window : NSWindow
+@end
+@interface _sapp_macos_window_delegate : NSObject<NSWindowDelegate>
+@end
+#if defined(SOKOL_METAL)
+ @interface _sapp_macos_view : MTKView
+ @end
+#elif defined(SOKOL_GLCORE33)
+ @interface _sapp_macos_view : NSOpenGLView
+ - (void)timerFired:(id)sender;
+ @end
+#endif // SOKOL_GLCORE33
+
+typedef struct {
+ uint32_t flags_changed_store;
+ uint8_t mouse_buttons;
+ NSWindow* window;
+ NSTrackingArea* tracking_area;
+ id keyup_monitor;
+ _sapp_macos_app_delegate* app_dlg;
+ _sapp_macos_window_delegate* win_dlg;
+ _sapp_macos_view* view;
+ NSCursor* cursors[_SAPP_MOUSECURSOR_NUM];
+ #if defined(SOKOL_METAL)
+ id<MTLDevice> mtl_device;
+ #endif
+} _sapp_macos_t;
+
+#endif // _SAPP_MACOS
+
+#if defined(_SAPP_IOS)
+
+@interface _sapp_app_delegate : NSObject<UIApplicationDelegate>
+@end
+@interface _sapp_textfield_dlg : NSObject<UITextFieldDelegate>
+- (void)keyboardWasShown:(NSNotification*)notif;
+- (void)keyboardWillBeHidden:(NSNotification*)notif;
+- (void)keyboardDidChangeFrame:(NSNotification*)notif;
+@end
+#if defined(SOKOL_METAL)
+ @interface _sapp_ios_view : MTKView;
+ @end
+#else
+ @interface _sapp_ios_view : GLKView
+ @end
+#endif
+
+typedef struct {
+ UIWindow* window;
+ _sapp_ios_view* view;
+ UITextField* textfield;
+ _sapp_textfield_dlg* textfield_dlg;
+ #if defined(SOKOL_METAL)
+ UIViewController* view_ctrl;
+ id<MTLDevice> mtl_device;
+ #else
+ GLKViewController* view_ctrl;
+ EAGLContext* eagl_ctx;
+ #endif
+ bool suspended;
+} _sapp_ios_t;
+
+#endif // _SAPP_IOS
+
+#if defined(_SAPP_EMSCRIPTEN)
+
+#if defined(SOKOL_WGPU)
+typedef struct {
+ int state;
+ WGPUDevice device;
+ WGPUSwapChain swapchain;
+ WGPUTextureFormat render_format;
+ WGPUTexture msaa_tex;
+ WGPUTexture depth_stencil_tex;
+ WGPUTextureView swapchain_view;
+ WGPUTextureView msaa_view;
+ WGPUTextureView depth_stencil_view;
+} _sapp_wgpu_t;
+#endif
+
+typedef struct {
+ bool textfield_created;
+ bool wants_show_keyboard;
+ bool wants_hide_keyboard;
+ bool mouse_lock_requested;
+ uint16_t mouse_buttons;
+ #if defined(SOKOL_WGPU)
+ _sapp_wgpu_t wgpu;
+ #endif
+} _sapp_emsc_t;
+#endif // _SAPP_EMSCRIPTEN
+
+#if defined(SOKOL_D3D11) && defined(_SAPP_WIN32)
+typedef struct {
+ ID3D11Device* device;
+ ID3D11DeviceContext* device_context;
+ ID3D11Texture2D* rt;
+ ID3D11RenderTargetView* rtv;
+ ID3D11Texture2D* msaa_rt;
+ ID3D11RenderTargetView* msaa_rtv;
+ ID3D11Texture2D* ds;
+ ID3D11DepthStencilView* dsv;
+ DXGI_SWAP_CHAIN_DESC swap_chain_desc;
+ IDXGISwapChain* swap_chain;
+ IDXGIDevice1* dxgi_device;
+ bool use_dxgi_frame_stats;
+ UINT sync_refresh_count;
+} _sapp_d3d11_t;
+#endif
+
+#if defined(_SAPP_WIN32)
+
+#ifndef DPI_ENUMS_DECLARED
+typedef enum PROCESS_DPI_AWARENESS
+{
+ PROCESS_DPI_UNAWARE = 0,
+ PROCESS_SYSTEM_DPI_AWARE = 1,
+ PROCESS_PER_MONITOR_DPI_AWARE = 2
+} PROCESS_DPI_AWARENESS;
+typedef enum MONITOR_DPI_TYPE {
+ MDT_EFFECTIVE_DPI = 0,
+ MDT_ANGULAR_DPI = 1,
+ MDT_RAW_DPI = 2,
+ MDT_DEFAULT = MDT_EFFECTIVE_DPI
+} MONITOR_DPI_TYPE;
+#endif /*DPI_ENUMS_DECLARED*/
+
+typedef struct {
+ bool aware;
+ float content_scale;
+ float window_scale;
+ float mouse_scale;
+} _sapp_win32_dpi_t;
+
+typedef struct {
+ HWND hwnd;
+ HMONITOR hmonitor;
+ HDC dc;
+ HICON big_icon;
+ HICON small_icon;
+ HCURSOR cursors[_SAPP_MOUSECURSOR_NUM];
+ UINT orig_codepage;
+ LONG mouse_locked_x, mouse_locked_y;
+ RECT stored_window_rect; // used to restore window pos/size when toggling fullscreen => windowed
+ bool is_win10_or_greater;
+ bool in_create_window;
+ bool iconified;
+ bool mouse_tracked;
+ uint8_t mouse_capture_mask;
+ _sapp_win32_dpi_t dpi;
+ bool raw_input_mousepos_valid;
+ LONG raw_input_mousepos_x;
+ LONG raw_input_mousepos_y;
+ uint8_t raw_input_data[256];
+} _sapp_win32_t;
+
+#if defined(SOKOL_GLCORE33)
+#define WGL_NUMBER_PIXEL_FORMATS_ARB 0x2000
+#define WGL_SUPPORT_OPENGL_ARB 0x2010
+#define WGL_DRAW_TO_WINDOW_ARB 0x2001
+#define WGL_PIXEL_TYPE_ARB 0x2013
+#define WGL_TYPE_RGBA_ARB 0x202b
+#define WGL_ACCELERATION_ARB 0x2003
+#define WGL_NO_ACCELERATION_ARB 0x2025
+#define WGL_RED_BITS_ARB 0x2015
+#define WGL_GREEN_BITS_ARB 0x2017
+#define WGL_BLUE_BITS_ARB 0x2019
+#define WGL_ALPHA_BITS_ARB 0x201b
+#define WGL_DEPTH_BITS_ARB 0x2022
+#define WGL_STENCIL_BITS_ARB 0x2023
+#define WGL_DOUBLE_BUFFER_ARB 0x2011
+#define WGL_SAMPLES_ARB 0x2042
+#define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x00000002
+#define WGL_CONTEXT_PROFILE_MASK_ARB 0x9126
+#define WGL_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001
+#define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091
+#define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092
+#define WGL_CONTEXT_FLAGS_ARB 0x2094
+#define ERROR_INVALID_VERSION_ARB 0x2095
+#define ERROR_INVALID_PROFILE_ARB 0x2096
+#define ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB 0x2054
+typedef BOOL (WINAPI * PFNWGLSWAPINTERVALEXTPROC)(int);
+typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBIVARBPROC)(HDC,int,int,UINT,const int*,int*);
+typedef const char* (WINAPI * PFNWGLGETEXTENSIONSSTRINGEXTPROC)(void);
+typedef const char* (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC)(HDC);
+typedef HGLRC (WINAPI * PFNWGLCREATECONTEXTATTRIBSARBPROC)(HDC,HGLRC,const int*);
+typedef HGLRC (WINAPI * PFN_wglCreateContext)(HDC);
+typedef BOOL (WINAPI * PFN_wglDeleteContext)(HGLRC);
+typedef PROC (WINAPI * PFN_wglGetProcAddress)(LPCSTR);
+typedef HDC (WINAPI * PFN_wglGetCurrentDC)(void);
+typedef BOOL (WINAPI * PFN_wglMakeCurrent)(HDC,HGLRC);
+
+typedef struct {
+ HINSTANCE opengl32;
+ HGLRC gl_ctx;
+ PFN_wglCreateContext CreateContext;
+ PFN_wglDeleteContext DeleteContext;
+ PFN_wglGetProcAddress GetProcAddress;
+ PFN_wglGetCurrentDC GetCurrentDC;
+ PFN_wglMakeCurrent MakeCurrent;
+ PFNWGLSWAPINTERVALEXTPROC SwapIntervalEXT;
+ PFNWGLGETPIXELFORMATATTRIBIVARBPROC GetPixelFormatAttribivARB;
+ PFNWGLGETEXTENSIONSSTRINGEXTPROC GetExtensionsStringEXT;
+ PFNWGLGETEXTENSIONSSTRINGARBPROC GetExtensionsStringARB;
+ PFNWGLCREATECONTEXTATTRIBSARBPROC CreateContextAttribsARB;
+ bool ext_swap_control;
+ bool arb_multisample;
+ bool arb_pixel_format;
+ bool arb_create_context;
+ bool arb_create_context_profile;
+ HWND msg_hwnd;
+ HDC msg_dc;
+} _sapp_wgl_t;
+#endif // SOKOL_GLCORE33
+
+#endif // _SAPP_WIN32
+
+#if defined(_SAPP_ANDROID)
+typedef enum {
+ _SOKOL_ANDROID_MSG_CREATE,
+ _SOKOL_ANDROID_MSG_RESUME,
+ _SOKOL_ANDROID_MSG_PAUSE,
+ _SOKOL_ANDROID_MSG_FOCUS,
+ _SOKOL_ANDROID_MSG_NO_FOCUS,
+ _SOKOL_ANDROID_MSG_SET_NATIVE_WINDOW,
+ _SOKOL_ANDROID_MSG_SET_INPUT_QUEUE,
+ _SOKOL_ANDROID_MSG_DESTROY,
+} _sapp_android_msg_t;
+
+typedef struct {
+ pthread_t thread;
+ pthread_mutex_t mutex;
+ pthread_cond_t cond;
+ int read_from_main_fd;
+ int write_from_main_fd;
+} _sapp_android_pt_t;
+
+typedef struct {
+ ANativeWindow* window;
+ AInputQueue* input;
+} _sapp_android_resources_t;
+
+typedef struct {
+ ANativeActivity* activity;
+ _sapp_android_pt_t pt;
+ _sapp_android_resources_t pending;
+ _sapp_android_resources_t current;
+ ALooper* looper;
+ bool is_thread_started;
+ bool is_thread_stopping;
+ bool is_thread_stopped;
+ bool has_created;
+ bool has_resumed;
+ bool has_focus;
+ EGLConfig config;
+ EGLDisplay display;
+ EGLContext context;
+ EGLSurface surface;
+} _sapp_android_t;
+
+#endif // _SAPP_ANDROID
+
+#if defined(_SAPP_LINUX)
+
+#define _SAPP_X11_XDND_VERSION (5)
+
+#define GLX_VENDOR 1
+#define GLX_RGBA_BIT 0x00000001
+#define GLX_WINDOW_BIT 0x00000001
+#define GLX_DRAWABLE_TYPE 0x8010
+#define GLX_RENDER_TYPE 0x8011
+#define GLX_DOUBLEBUFFER 5
+#define GLX_RED_SIZE 8
+#define GLX_GREEN_SIZE 9
+#define GLX_BLUE_SIZE 10
+#define GLX_ALPHA_SIZE 11
+#define GLX_DEPTH_SIZE 12
+#define GLX_STENCIL_SIZE 13
+#define GLX_SAMPLES 0x186a1
+#define GLX_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001
+#define GLX_CONTEXT_PROFILE_MASK_ARB 0x9126
+#define GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x00000002
+#define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091
+#define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092
+#define GLX_CONTEXT_FLAGS_ARB 0x2094
+
+typedef XID GLXWindow;
+typedef XID GLXDrawable;
+typedef struct __GLXFBConfig* GLXFBConfig;
+typedef struct __GLXcontext* GLXContext;
+typedef void (*__GLXextproc)(void);
+
+typedef int (*PFNGLXGETFBCONFIGATTRIBPROC)(Display*,GLXFBConfig,int,int*);
+typedef const char* (*PFNGLXGETCLIENTSTRINGPROC)(Display*,int);
+typedef Bool (*PFNGLXQUERYEXTENSIONPROC)(Display*,int*,int*);
+typedef Bool (*PFNGLXQUERYVERSIONPROC)(Display*,int*,int*);
+typedef void (*PFNGLXDESTROYCONTEXTPROC)(Display*,GLXContext);
+typedef Bool (*PFNGLXMAKECURRENTPROC)(Display*,GLXDrawable,GLXContext);
+typedef void (*PFNGLXSWAPBUFFERSPROC)(Display*,GLXDrawable);
+typedef const char* (*PFNGLXQUERYEXTENSIONSSTRINGPROC)(Display*,int);
+typedef GLXFBConfig* (*PFNGLXGETFBCONFIGSPROC)(Display*,int,int*);
+typedef __GLXextproc (* PFNGLXGETPROCADDRESSPROC)(const char *procName);
+typedef void (*PFNGLXSWAPINTERVALEXTPROC)(Display*,GLXDrawable,int);
+typedef XVisualInfo* (*PFNGLXGETVISUALFROMFBCONFIGPROC)(Display*,GLXFBConfig);
+typedef GLXWindow (*PFNGLXCREATEWINDOWPROC)(Display*,GLXFBConfig,Window,const int*);
+typedef void (*PFNGLXDESTROYWINDOWPROC)(Display*,GLXWindow);
+
+typedef int (*PFNGLXSWAPINTERVALMESAPROC)(int);
+typedef GLXContext (*PFNGLXCREATECONTEXTATTRIBSARBPROC)(Display*,GLXFBConfig,GLXContext,Bool,const int*);
+
+typedef struct {
+ bool available;
+ int major_opcode;
+ int event_base;
+ int error_base;
+ int major;
+ int minor;
+} _sapp_xi_t;
+
+typedef struct {
+ int version;
+ Window source;
+ Atom format;
+ Atom XdndAware;
+ Atom XdndEnter;
+ Atom XdndPosition;
+ Atom XdndStatus;
+ Atom XdndActionCopy;
+ Atom XdndDrop;
+ Atom XdndFinished;
+ Atom XdndSelection;
+ Atom XdndTypeList;
+ Atom text_uri_list;
+} _sapp_xdnd_t;
+
+typedef struct {
+ uint8_t mouse_buttons;
+ Display* display;
+ int screen;
+ Window root;
+ Colormap colormap;
+ Window window;
+ Cursor hidden_cursor;
+ Cursor cursors[_SAPP_MOUSECURSOR_NUM];
+ int window_state;
+ float dpi;
+ unsigned char error_code;
+ Atom UTF8_STRING;
+ Atom WM_PROTOCOLS;
+ Atom WM_DELETE_WINDOW;
+ Atom WM_STATE;
+ Atom NET_WM_NAME;
+ Atom NET_WM_ICON_NAME;
+ Atom NET_WM_ICON;
+ Atom NET_WM_STATE;
+ Atom NET_WM_STATE_FULLSCREEN;
+ _sapp_xi_t xi;
+ _sapp_xdnd_t xdnd;
+} _sapp_x11_t;
+
+#if defined(_SAPP_GLX)
+
+typedef struct {
+ void* libgl;
+ int major;
+ int minor;
+ int event_base;
+ int error_base;
+ GLXContext ctx;
+ GLXWindow window;
+
+ // GLX 1.3 functions
+ PFNGLXGETFBCONFIGSPROC GetFBConfigs;
+ PFNGLXGETFBCONFIGATTRIBPROC GetFBConfigAttrib;
+ PFNGLXGETCLIENTSTRINGPROC GetClientString;
+ PFNGLXQUERYEXTENSIONPROC QueryExtension;
+ PFNGLXQUERYVERSIONPROC QueryVersion;
+ PFNGLXDESTROYCONTEXTPROC DestroyContext;
+ PFNGLXMAKECURRENTPROC MakeCurrent;
+ PFNGLXSWAPBUFFERSPROC SwapBuffers;
+ PFNGLXQUERYEXTENSIONSSTRINGPROC QueryExtensionsString;
+ PFNGLXGETVISUALFROMFBCONFIGPROC GetVisualFromFBConfig;
+ PFNGLXCREATEWINDOWPROC CreateWindow;
+ PFNGLXDESTROYWINDOWPROC DestroyWindow;
+
+ // GLX 1.4 and extension functions
+ PFNGLXGETPROCADDRESSPROC GetProcAddress;
+ PFNGLXGETPROCADDRESSPROC GetProcAddressARB;
+ PFNGLXSWAPINTERVALEXTPROC SwapIntervalEXT;
+ PFNGLXSWAPINTERVALMESAPROC SwapIntervalMESA;
+ PFNGLXCREATECONTEXTATTRIBSARBPROC CreateContextAttribsARB;
+
+ // extension availability
+ bool EXT_swap_control;
+ bool MESA_swap_control;
+ bool ARB_multisample;
+ bool ARB_create_context;
+ bool ARB_create_context_profile;
+} _sapp_glx_t;
+
+#else
+
+typedef struct {
+ EGLDisplay display;
+ EGLContext context;
+ EGLSurface surface;
+} _sapp_egl_t;
+
+#endif // _SAPP_GLX
+
+#endif // _SAPP_LINUX
+
+/* helper macros */
+#define _sapp_def(val, def) (((val) == 0) ? (def) : (val))
+#define _sapp_absf(a) (((a)<0.0f)?-(a):(a))
+
+#define _SAPP_MAX_TITLE_LENGTH (128)
+#define _SAPP_FALLBACK_DEFAULT_WINDOW_WIDTH (640)
+#define _SAPP_FALLBACK_DEFAULT_WINDOW_HEIGHT (480)
+/* NOTE: the pixel format values *must* be compatible with sg_pixel_format */
+#define _SAPP_PIXELFORMAT_RGBA8 (23)
+#define _SAPP_PIXELFORMAT_BGRA8 (28)
+#define _SAPP_PIXELFORMAT_DEPTH (42)
+#define _SAPP_PIXELFORMAT_DEPTH_STENCIL (43)
+
+#if defined(_SAPP_MACOS) || defined(_SAPP_IOS)
+ // this is ARC compatible
+ #if defined(__cplusplus)
+ #define _SAPP_CLEAR_ARC_STRUCT(type, item) { item = type(); }
+ #else
+ #define _SAPP_CLEAR_ARC_STRUCT(type, item) { item = (type) { 0 }; }
+ #endif
+#else
+ #define _SAPP_CLEAR_ARC_STRUCT(type, item) { _sapp_clear(&item, sizeof(item)); }
+#endif
+
+typedef struct {
+ bool enabled;
+ int buf_size;
+ char* buffer;
+} _sapp_clipboard_t;
+
+typedef struct {
+ bool enabled;
+ int max_files;
+ int max_path_length;
+ int num_files;
+ int buf_size;
+ char* buffer;
+} _sapp_drop_t;
+
+typedef struct {
+ float x, y;
+ float dx, dy;
+ bool shown;
+ bool locked;
+ bool pos_valid;
+ sapp_mouse_cursor current_cursor;
+} _sapp_mouse_t;
+
+typedef struct {
+ sapp_desc desc;
+ bool valid;
+ bool fullscreen;
+ bool first_frame;
+ bool init_called;
+ bool cleanup_called;
+ bool quit_requested;
+ bool quit_ordered;
+ bool event_consumed;
+ bool html5_ask_leave_site;
+ bool onscreen_keyboard_shown;
+ int window_width;
+ int window_height;
+ int framebuffer_width;
+ int framebuffer_height;
+ int sample_count;
+ int swap_interval;
+ float dpi_scale;
+ uint64_t frame_count;
+ _sapp_timing_t timing;
+ sapp_event event;
+ _sapp_mouse_t mouse;
+ _sapp_clipboard_t clipboard;
+ _sapp_drop_t drop;
+ sapp_icon_desc default_icon_desc;
+ uint32_t* default_icon_pixels;
+ #if defined(_SAPP_MACOS)
+ _sapp_macos_t macos;
+ #elif defined(_SAPP_IOS)
+ _sapp_ios_t ios;
+ #elif defined(_SAPP_EMSCRIPTEN)
+ _sapp_emsc_t emsc;
+ #elif defined(_SAPP_WIN32)
+ _sapp_win32_t win32;
+ #if defined(SOKOL_D3D11)
+ _sapp_d3d11_t d3d11;
+ #elif defined(SOKOL_GLCORE33)
+ _sapp_wgl_t wgl;
+ #endif
+ #elif defined(_SAPP_ANDROID)
+ _sapp_android_t android;
+ #elif defined(_SAPP_LINUX)
+ _sapp_x11_t x11;
+ #if defined(_SAPP_GLX)
+ _sapp_glx_t glx;
+ #else
+ _sapp_egl_t egl;
+ #endif
+ #endif
+ char html5_canvas_selector[_SAPP_MAX_TITLE_LENGTH];
+ char window_title[_SAPP_MAX_TITLE_LENGTH]; /* UTF-8 */
+ wchar_t window_title_wide[_SAPP_MAX_TITLE_LENGTH]; /* UTF-32 or UCS-2 */
+ sapp_keycode keycodes[SAPP_MAX_KEYCODES];
+} _sapp_t;
+static _sapp_t _sapp;
+
+// ██ ██████ ██████ ██████ ██ ███ ██ ██████
+// ██ ██ ██ ██ ██ ██ ████ ██ ██
+// ██ ██ ██ ██ ███ ██ ███ ██ ██ ██ ██ ██ ███
+// ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ███████ ██████ ██████ ██████ ██ ██ ████ ██████
+//
+// >>logging
+#if defined(SOKOL_DEBUG)
+#define _SAPP_LOGITEM_XMACRO(item,msg) #item ": " msg,
+static const char* _sapp_log_messages[] = {
+ _SAPP_LOG_ITEMS
+};
+#undef _SAPP_LOGITEM_XMACRO
+#endif // SOKOL_DEBUG
+
+#define _SAPP_PANIC(code) _sapp_log(SAPP_LOGITEM_ ##code, 0, 0, __LINE__)
+#define _SAPP_ERROR(code) _sapp_log(SAPP_LOGITEM_ ##code, 1, 0, __LINE__)
+#define _SAPP_WARN(code) _sapp_log(SAPP_LOGITEM_ ##code, 2, 0, __LINE__)
+#define _SAPP_INFO(code) _sapp_log(SAPP_LOGITEM_ ##code, 3, 0, __LINE__)
+
+static void _sapp_log(sapp_log_item log_item, uint32_t log_level, const char* msg, uint32_t line_nr) {
+ if (_sapp.desc.logger.func) {
+ const char* filename = 0;
+ #if defined(SOKOL_DEBUG)
+ filename = __FILE__;
+ if (0 == msg) {
+ msg = _sapp_log_messages[log_item];
+ }
+ #endif
+ _sapp.desc.logger.func("sapp", log_level, log_item, msg, line_nr, filename, _sapp.desc.logger.user_data);
+ }
+ else {
+ // for log level PANIC it would be 'undefined behaviour' to continue
+ if (log_level == 0) {
+ abort();
+ }
+ }
+}
+
+// ███ ███ ███████ ███ ███ ██████ ██████ ██ ██
+// ████ ████ ██ ████ ████ ██ ██ ██ ██ ██ ██
+// ██ ████ ██ █████ ██ ████ ██ ██ ██ ██████ ████
+// ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ██ ██ ███████ ██ ██ ██████ ██ ██ ██
+//
+// >>memory
+_SOKOL_PRIVATE void _sapp_clear(void* ptr, size_t size) {
+ SOKOL_ASSERT(ptr && (size > 0));
+ memset(ptr, 0, size);
+}
+
+_SOKOL_PRIVATE void* _sapp_malloc(size_t size) {
+ SOKOL_ASSERT(size > 0);
+ void* ptr;
+ if (_sapp.desc.allocator.alloc) {
+ ptr = _sapp.desc.allocator.alloc(size, _sapp.desc.allocator.user_data);
+ }
+ else {
+ ptr = malloc(size);
+ }
+ if (0 == ptr) {
+ _SAPP_PANIC(MALLOC_FAILED);
+ }
+ return ptr;
+}
+
+_SOKOL_PRIVATE void* _sapp_malloc_clear(size_t size) {
+ void* ptr = _sapp_malloc(size);
+ _sapp_clear(ptr, size);
+ return ptr;
+}
+
+_SOKOL_PRIVATE void _sapp_free(void* ptr) {
+ if (_sapp.desc.allocator.free) {
+ _sapp.desc.allocator.free(ptr, _sapp.desc.allocator.user_data);
+ }
+ else {
+ free(ptr);
+ }
+}
+
+// ██ ██ ███████ ██ ██████ ███████ ██████ ███████
+// ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ███████ █████ ██ ██████ █████ ██████ ███████
+// ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ██ ██ ███████ ███████ ██ ███████ ██ ██ ███████
+//
+// >>helpers
+_SOKOL_PRIVATE void _sapp_call_init(void) {
+ if (_sapp.desc.init_cb) {
+ _sapp.desc.init_cb();
+ }
+ else if (_sapp.desc.init_userdata_cb) {
+ _sapp.desc.init_userdata_cb(_sapp.desc.user_data);
+ }
+ _sapp.init_called = true;
+}
+
+_SOKOL_PRIVATE void _sapp_call_frame(void) {
+ if (_sapp.init_called && !_sapp.cleanup_called) {
+ if (_sapp.desc.frame_cb) {
+ _sapp.desc.frame_cb();
+ }
+ else if (_sapp.desc.frame_userdata_cb) {
+ _sapp.desc.frame_userdata_cb(_sapp.desc.user_data);
+ }
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_call_cleanup(void) {
+ if (!_sapp.cleanup_called) {
+ if (_sapp.desc.cleanup_cb) {
+ _sapp.desc.cleanup_cb();
+ }
+ else if (_sapp.desc.cleanup_userdata_cb) {
+ _sapp.desc.cleanup_userdata_cb(_sapp.desc.user_data);
+ }
+ _sapp.cleanup_called = true;
+ }
+}
+
+_SOKOL_PRIVATE bool _sapp_call_event(const sapp_event* e) {
+ if (!_sapp.cleanup_called) {
+ if (_sapp.desc.event_cb) {
+ _sapp.desc.event_cb(e);
+ }
+ else if (_sapp.desc.event_userdata_cb) {
+ _sapp.desc.event_userdata_cb(e, _sapp.desc.user_data);
+ }
+ }
+ if (_sapp.event_consumed) {
+ _sapp.event_consumed = false;
+ return true;
+ }
+ else {
+ return false;
+ }
+}
+
+_SOKOL_PRIVATE char* _sapp_dropped_file_path_ptr(int index) {
+ SOKOL_ASSERT(_sapp.drop.buffer);
+ SOKOL_ASSERT((index >= 0) && (index <= _sapp.drop.max_files));
+ int offset = index * _sapp.drop.max_path_length;
+ SOKOL_ASSERT(offset < _sapp.drop.buf_size);
+ return &_sapp.drop.buffer[offset];
+}
+
+/* Copy a string into a fixed size buffer with guaranteed zero-
+ termination.
+
+ Return false if the string didn't fit into the buffer and had to be clamped.
+
+ FIXME: Currently UTF-8 strings might become invalid if the string
+ is clamped, because the last zero-byte might be written into
+ the middle of a multi-byte sequence.
+*/
+_SOKOL_PRIVATE bool _sapp_strcpy(const char* src, char* dst, int max_len) {
+ SOKOL_ASSERT(src && dst && (max_len > 0));
+ char* const end = &(dst[max_len-1]);
+ char c = 0;
+ for (int i = 0; i < max_len; i++) {
+ c = *src;
+ if (c != 0) {
+ src++;
+ }
+ *dst++ = c;
+ }
+ /* truncated? */
+ if (c != 0) {
+ *end = 0;
+ return false;
+ }
+ else {
+ return true;
+ }
+}
+
+_SOKOL_PRIVATE sapp_desc _sapp_desc_defaults(const sapp_desc* desc) {
+ SOKOL_ASSERT((desc->allocator.alloc && desc->allocator.free) || (!desc->allocator.alloc && !desc->allocator.free));
+ sapp_desc res = *desc;
+ res.sample_count = _sapp_def(res.sample_count, 1);
+ res.swap_interval = _sapp_def(res.swap_interval, 1);
+ // NOTE: can't patch the default for gl_major_version and gl_minor_version
+ // independently, because a desired version 4.0 would be patched to 4.2
+ // (or expressed differently: zero is a valid value for gl_minor_version
+ // and can't be used to indicate 'default')
+ if (0 == res.gl_major_version) {
+ res.gl_major_version = 3;
+ res.gl_minor_version = 2;
+ }
+ res.html5_canvas_name = _sapp_def(res.html5_canvas_name, "canvas");
+ res.clipboard_size = _sapp_def(res.clipboard_size, 8192);
+ res.max_dropped_files = _sapp_def(res.max_dropped_files, 1);
+ res.max_dropped_file_path_length = _sapp_def(res.max_dropped_file_path_length, 2048);
+ res.window_title = _sapp_def(res.window_title, "sokol_app");
+ return res;
+}
+
+_SOKOL_PRIVATE void _sapp_init_state(const sapp_desc* desc) {
+ SOKOL_ASSERT(desc);
+ SOKOL_ASSERT(desc->width >= 0);
+ SOKOL_ASSERT(desc->height >= 0);
+ SOKOL_ASSERT(desc->sample_count >= 0);
+ SOKOL_ASSERT(desc->swap_interval >= 0);
+ SOKOL_ASSERT(desc->clipboard_size >= 0);
+ SOKOL_ASSERT(desc->max_dropped_files >= 0);
+ SOKOL_ASSERT(desc->max_dropped_file_path_length >= 0);
+ _SAPP_CLEAR_ARC_STRUCT(_sapp_t, _sapp);
+ _sapp.desc = _sapp_desc_defaults(desc);
+ _sapp.first_frame = true;
+ // NOTE: _sapp.desc.width/height may be 0! Platform backends need to deal with this
+ _sapp.window_width = _sapp.desc.width;
+ _sapp.window_height = _sapp.desc.height;
+ _sapp.framebuffer_width = _sapp.window_width;
+ _sapp.framebuffer_height = _sapp.window_height;
+ _sapp.sample_count = _sapp.desc.sample_count;
+ _sapp.swap_interval = _sapp.desc.swap_interval;
+ _sapp.html5_canvas_selector[0] = '#';
+ _sapp_strcpy(_sapp.desc.html5_canvas_name, &_sapp.html5_canvas_selector[1], sizeof(_sapp.html5_canvas_selector) - 1);
+ _sapp.desc.html5_canvas_name = &_sapp.html5_canvas_selector[1];
+ _sapp.html5_ask_leave_site = _sapp.desc.html5_ask_leave_site;
+ _sapp.clipboard.enabled = _sapp.desc.enable_clipboard;
+ if (_sapp.clipboard.enabled) {
+ _sapp.clipboard.buf_size = _sapp.desc.clipboard_size;
+ _sapp.clipboard.buffer = (char*) _sapp_malloc_clear((size_t)_sapp.clipboard.buf_size);
+ }
+ _sapp.drop.enabled = _sapp.desc.enable_dragndrop;
+ if (_sapp.drop.enabled) {
+ _sapp.drop.max_files = _sapp.desc.max_dropped_files;
+ _sapp.drop.max_path_length = _sapp.desc.max_dropped_file_path_length;
+ _sapp.drop.buf_size = _sapp.drop.max_files * _sapp.drop.max_path_length;
+ _sapp.drop.buffer = (char*) _sapp_malloc_clear((size_t)_sapp.drop.buf_size);
+ }
+ _sapp_strcpy(_sapp.desc.window_title, _sapp.window_title, sizeof(_sapp.window_title));
+ _sapp.desc.window_title = _sapp.window_title;
+ _sapp.dpi_scale = 1.0f;
+ _sapp.fullscreen = _sapp.desc.fullscreen;
+ _sapp.mouse.shown = true;
+ _sapp_timing_init(&_sapp.timing);
+}
+
+_SOKOL_PRIVATE void _sapp_discard_state(void) {
+ if (_sapp.clipboard.enabled) {
+ SOKOL_ASSERT(_sapp.clipboard.buffer);
+ _sapp_free((void*)_sapp.clipboard.buffer);
+ }
+ if (_sapp.drop.enabled) {
+ SOKOL_ASSERT(_sapp.drop.buffer);
+ _sapp_free((void*)_sapp.drop.buffer);
+ }
+ if (_sapp.default_icon_pixels) {
+ _sapp_free((void*)_sapp.default_icon_pixels);
+ }
+ _SAPP_CLEAR_ARC_STRUCT(_sapp_t, _sapp);
+}
+
+_SOKOL_PRIVATE void _sapp_init_event(sapp_event_type type) {
+ _sapp_clear(&_sapp.event, sizeof(_sapp.event));
+ _sapp.event.type = type;
+ _sapp.event.frame_count = _sapp.frame_count;
+ _sapp.event.mouse_button = SAPP_MOUSEBUTTON_INVALID;
+ _sapp.event.window_width = _sapp.window_width;
+ _sapp.event.window_height = _sapp.window_height;
+ _sapp.event.framebuffer_width = _sapp.framebuffer_width;
+ _sapp.event.framebuffer_height = _sapp.framebuffer_height;
+ _sapp.event.mouse_x = _sapp.mouse.x;
+ _sapp.event.mouse_y = _sapp.mouse.y;
+ _sapp.event.mouse_dx = _sapp.mouse.dx;
+ _sapp.event.mouse_dy = _sapp.mouse.dy;
+}
+
+_SOKOL_PRIVATE bool _sapp_events_enabled(void) {
+ /* only send events when an event callback is set, and the init function was called */
+ return (_sapp.desc.event_cb || _sapp.desc.event_userdata_cb) && _sapp.init_called;
+}
+
+_SOKOL_PRIVATE sapp_keycode _sapp_translate_key(int scan_code) {
+ if ((scan_code >= 0) && (scan_code < SAPP_MAX_KEYCODES)) {
+ return _sapp.keycodes[scan_code];
+ }
+ else {
+ return SAPP_KEYCODE_INVALID;
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_clear_drop_buffer(void) {
+ if (_sapp.drop.enabled) {
+ SOKOL_ASSERT(_sapp.drop.buffer);
+ _sapp_clear(_sapp.drop.buffer, (size_t)_sapp.drop.buf_size);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_frame(void) {
+ if (_sapp.first_frame) {
+ _sapp.first_frame = false;
+ _sapp_call_init();
+ }
+ _sapp_call_frame();
+ _sapp.frame_count++;
+}
+
+_SOKOL_PRIVATE bool _sapp_image_validate(const sapp_image_desc* desc) {
+ SOKOL_ASSERT(desc->width > 0);
+ SOKOL_ASSERT(desc->height > 0);
+ SOKOL_ASSERT(desc->pixels.ptr != 0);
+ SOKOL_ASSERT(desc->pixels.size > 0);
+ const size_t wh_size = (size_t)(desc->width * desc->height) * sizeof(uint32_t);
+ if (wh_size != desc->pixels.size) {
+ _SAPP_ERROR(IMAGE_DATA_SIZE_MISMATCH);
+ return false;
+ }
+ return true;
+}
+
+_SOKOL_PRIVATE int _sapp_image_bestmatch(const sapp_image_desc image_descs[], int num_images, int width, int height) {
+ int least_diff = 0x7FFFFFFF;
+ int least_index = 0;
+ for (int i = 0; i < num_images; i++) {
+ int diff = (image_descs[i].width * image_descs[i].height) - (width * height);
+ if (diff < 0) {
+ diff = -diff;
+ }
+ if (diff < least_diff) {
+ least_diff = diff;
+ least_index = i;
+ }
+ }
+ return least_index;
+}
+
+_SOKOL_PRIVATE int _sapp_icon_num_images(const sapp_icon_desc* desc) {
+ int index = 0;
+ for (; index < SAPP_MAX_ICONIMAGES; index++) {
+ if (0 == desc->images[index].pixels.ptr) {
+ break;
+ }
+ }
+ return index;
+}
+
+_SOKOL_PRIVATE bool _sapp_validate_icon_desc(const sapp_icon_desc* desc, int num_images) {
+ SOKOL_ASSERT(num_images <= SAPP_MAX_ICONIMAGES);
+ for (int i = 0; i < num_images; i++) {
+ const sapp_image_desc* img_desc = &desc->images[i];
+ if (!_sapp_image_validate(img_desc)) {
+ return false;
+ }
+ }
+ return true;
+}
+
+_SOKOL_PRIVATE void _sapp_setup_default_icon(void) {
+ SOKOL_ASSERT(0 == _sapp.default_icon_pixels);
+
+ const int num_icons = 3;
+ const int icon_sizes[3] = { 16, 32, 64 }; // must be multiple of 8!
+
+ // allocate a pixel buffer for all icon pixels
+ int all_num_pixels = 0;
+ for (int i = 0; i < num_icons; i++) {
+ all_num_pixels += icon_sizes[i] * icon_sizes[i];
+ }
+ _sapp.default_icon_pixels = (uint32_t*) _sapp_malloc_clear((size_t)all_num_pixels * sizeof(uint32_t));
+
+ // initialize default_icon_desc struct
+ uint32_t* dst = _sapp.default_icon_pixels;
+ const uint32_t* dst_end = dst + all_num_pixels;
+ (void)dst_end; // silence unused warning in release mode
+ for (int i = 0; i < num_icons; i++) {
+ const int dim = (int) icon_sizes[i];
+ const int num_pixels = dim * dim;
+ sapp_image_desc* img_desc = &_sapp.default_icon_desc.images[i];
+ img_desc->width = dim;
+ img_desc->height = dim;
+ img_desc->pixels.ptr = dst;
+ img_desc->pixels.size = (size_t)num_pixels * sizeof(uint32_t);
+ dst += num_pixels;
+ }
+ SOKOL_ASSERT(dst == dst_end);
+
+ // Amstrad CPC font 'S'
+ const uint8_t tile[8] = {
+ 0x3C,
+ 0x66,
+ 0x60,
+ 0x3C,
+ 0x06,
+ 0x66,
+ 0x3C,
+ 0x00,
+ };
+ // rainbow colors
+ const uint32_t colors[8] = {
+ 0xFF4370FF,
+ 0xFF26A7FF,
+ 0xFF58EEFF,
+ 0xFF57E1D4,
+ 0xFF65CC9C,
+ 0xFF6ABB66,
+ 0xFFF5A542,
+ 0xFFC2577E,
+ };
+ dst = _sapp.default_icon_pixels;
+ const uint32_t blank = 0x00FFFFFF;
+ const uint32_t shadow = 0xFF000000;
+ for (int i = 0; i < num_icons; i++) {
+ const int dim = icon_sizes[i];
+ SOKOL_ASSERT((dim % 8) == 0);
+ const int scale = dim / 8;
+ for (int ty = 0, y = 0; ty < 8; ty++) {
+ const uint32_t color = colors[ty];
+ for (int sy = 0; sy < scale; sy++, y++) {
+ uint8_t bits = tile[ty];
+ for (int tx = 0, x = 0; tx < 8; tx++, bits<<=1) {
+ uint32_t pixel = (0 == (bits & 0x80)) ? blank : color;
+ for (int sx = 0; sx < scale; sx++, x++) {
+ SOKOL_ASSERT(dst < dst_end);
+ *dst++ = pixel;
+ }
+ }
+ }
+ }
+ }
+ SOKOL_ASSERT(dst == dst_end);
+
+ // right shadow
+ dst = _sapp.default_icon_pixels;
+ for (int i = 0; i < num_icons; i++) {
+ const int dim = icon_sizes[i];
+ for (int y = 0; y < dim; y++) {
+ uint32_t prev_color = blank;
+ for (int x = 0; x < dim; x++) {
+ const int dst_index = y * dim + x;
+ const uint32_t cur_color = dst[dst_index];
+ if ((cur_color == blank) && (prev_color != blank)) {
+ dst[dst_index] = shadow;
+ }
+ prev_color = cur_color;
+ }
+ }
+ dst += dim * dim;
+ }
+ SOKOL_ASSERT(dst == dst_end);
+
+ // bottom shadow
+ dst = _sapp.default_icon_pixels;
+ for (int i = 0; i < num_icons; i++) {
+ const int dim = icon_sizes[i];
+ for (int x = 0; x < dim; x++) {
+ uint32_t prev_color = blank;
+ for (int y = 0; y < dim; y++) {
+ const int dst_index = y * dim + x;
+ const uint32_t cur_color = dst[dst_index];
+ if ((cur_color == blank) && (prev_color != blank)) {
+ dst[dst_index] = shadow;
+ }
+ prev_color = cur_color;
+ }
+ }
+ dst += dim * dim;
+ }
+ SOKOL_ASSERT(dst == dst_end);
+}
+
+// █████ ██████ ██████ ██ ███████
+// ██ ██ ██ ██ ██ ██ ██ ██
+// ███████ ██████ ██████ ██ █████
+// ██ ██ ██ ██ ██ ██
+// ██ ██ ██ ██ ███████ ███████
+//
+// >>apple
+#if defined(_SAPP_APPLE)
+
+#if __has_feature(objc_arc)
+#define _SAPP_OBJC_RELEASE(obj) { obj = nil; }
+#else
+#define _SAPP_OBJC_RELEASE(obj) { [obj release]; obj = nil; }
+#endif
+
+// ███ ███ █████ ██████ ██████ ███████
+// ████ ████ ██ ██ ██ ██ ██ ██
+// ██ ████ ██ ███████ ██ ██ ██ ███████
+// ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ██ ██ ██ ██ ██████ ██████ ███████
+//
+// >>macos
+#if defined(_SAPP_MACOS)
+
+_SOKOL_PRIVATE void _sapp_macos_init_keytable(void) {
+ _sapp.keycodes[0x1D] = SAPP_KEYCODE_0;
+ _sapp.keycodes[0x12] = SAPP_KEYCODE_1;
+ _sapp.keycodes[0x13] = SAPP_KEYCODE_2;
+ _sapp.keycodes[0x14] = SAPP_KEYCODE_3;
+ _sapp.keycodes[0x15] = SAPP_KEYCODE_4;
+ _sapp.keycodes[0x17] = SAPP_KEYCODE_5;
+ _sapp.keycodes[0x16] = SAPP_KEYCODE_6;
+ _sapp.keycodes[0x1A] = SAPP_KEYCODE_7;
+ _sapp.keycodes[0x1C] = SAPP_KEYCODE_8;
+ _sapp.keycodes[0x19] = SAPP_KEYCODE_9;
+ _sapp.keycodes[0x00] = SAPP_KEYCODE_A;
+ _sapp.keycodes[0x0B] = SAPP_KEYCODE_B;
+ _sapp.keycodes[0x08] = SAPP_KEYCODE_C;
+ _sapp.keycodes[0x02] = SAPP_KEYCODE_D;
+ _sapp.keycodes[0x0E] = SAPP_KEYCODE_E;
+ _sapp.keycodes[0x03] = SAPP_KEYCODE_F;
+ _sapp.keycodes[0x05] = SAPP_KEYCODE_G;
+ _sapp.keycodes[0x04] = SAPP_KEYCODE_H;
+ _sapp.keycodes[0x22] = SAPP_KEYCODE_I;
+ _sapp.keycodes[0x26] = SAPP_KEYCODE_J;
+ _sapp.keycodes[0x28] = SAPP_KEYCODE_K;
+ _sapp.keycodes[0x25] = SAPP_KEYCODE_L;
+ _sapp.keycodes[0x2E] = SAPP_KEYCODE_M;
+ _sapp.keycodes[0x2D] = SAPP_KEYCODE_N;
+ _sapp.keycodes[0x1F] = SAPP_KEYCODE_O;
+ _sapp.keycodes[0x23] = SAPP_KEYCODE_P;
+ _sapp.keycodes[0x0C] = SAPP_KEYCODE_Q;
+ _sapp.keycodes[0x0F] = SAPP_KEYCODE_R;
+ _sapp.keycodes[0x01] = SAPP_KEYCODE_S;
+ _sapp.keycodes[0x11] = SAPP_KEYCODE_T;
+ _sapp.keycodes[0x20] = SAPP_KEYCODE_U;
+ _sapp.keycodes[0x09] = SAPP_KEYCODE_V;
+ _sapp.keycodes[0x0D] = SAPP_KEYCODE_W;
+ _sapp.keycodes[0x07] = SAPP_KEYCODE_X;
+ _sapp.keycodes[0x10] = SAPP_KEYCODE_Y;
+ _sapp.keycodes[0x06] = SAPP_KEYCODE_Z;
+ _sapp.keycodes[0x27] = SAPP_KEYCODE_APOSTROPHE;
+ _sapp.keycodes[0x2A] = SAPP_KEYCODE_BACKSLASH;
+ _sapp.keycodes[0x2B] = SAPP_KEYCODE_COMMA;
+ _sapp.keycodes[0x18] = SAPP_KEYCODE_EQUAL;
+ _sapp.keycodes[0x32] = SAPP_KEYCODE_GRAVE_ACCENT;
+ _sapp.keycodes[0x21] = SAPP_KEYCODE_LEFT_BRACKET;
+ _sapp.keycodes[0x1B] = SAPP_KEYCODE_MINUS;
+ _sapp.keycodes[0x2F] = SAPP_KEYCODE_PERIOD;
+ _sapp.keycodes[0x1E] = SAPP_KEYCODE_RIGHT_BRACKET;
+ _sapp.keycodes[0x29] = SAPP_KEYCODE_SEMICOLON;
+ _sapp.keycodes[0x2C] = SAPP_KEYCODE_SLASH;
+ _sapp.keycodes[0x0A] = SAPP_KEYCODE_WORLD_1;
+ _sapp.keycodes[0x33] = SAPP_KEYCODE_BACKSPACE;
+ _sapp.keycodes[0x39] = SAPP_KEYCODE_CAPS_LOCK;
+ _sapp.keycodes[0x75] = SAPP_KEYCODE_DELETE;
+ _sapp.keycodes[0x7D] = SAPP_KEYCODE_DOWN;
+ _sapp.keycodes[0x77] = SAPP_KEYCODE_END;
+ _sapp.keycodes[0x24] = SAPP_KEYCODE_ENTER;
+ _sapp.keycodes[0x35] = SAPP_KEYCODE_ESCAPE;
+ _sapp.keycodes[0x7A] = SAPP_KEYCODE_F1;
+ _sapp.keycodes[0x78] = SAPP_KEYCODE_F2;
+ _sapp.keycodes[0x63] = SAPP_KEYCODE_F3;
+ _sapp.keycodes[0x76] = SAPP_KEYCODE_F4;
+ _sapp.keycodes[0x60] = SAPP_KEYCODE_F5;
+ _sapp.keycodes[0x61] = SAPP_KEYCODE_F6;
+ _sapp.keycodes[0x62] = SAPP_KEYCODE_F7;
+ _sapp.keycodes[0x64] = SAPP_KEYCODE_F8;
+ _sapp.keycodes[0x65] = SAPP_KEYCODE_F9;
+ _sapp.keycodes[0x6D] = SAPP_KEYCODE_F10;
+ _sapp.keycodes[0x67] = SAPP_KEYCODE_F11;
+ _sapp.keycodes[0x6F] = SAPP_KEYCODE_F12;
+ _sapp.keycodes[0x69] = SAPP_KEYCODE_F13;
+ _sapp.keycodes[0x6B] = SAPP_KEYCODE_F14;
+ _sapp.keycodes[0x71] = SAPP_KEYCODE_F15;
+ _sapp.keycodes[0x6A] = SAPP_KEYCODE_F16;
+ _sapp.keycodes[0x40] = SAPP_KEYCODE_F17;
+ _sapp.keycodes[0x4F] = SAPP_KEYCODE_F18;
+ _sapp.keycodes[0x50] = SAPP_KEYCODE_F19;
+ _sapp.keycodes[0x5A] = SAPP_KEYCODE_F20;
+ _sapp.keycodes[0x73] = SAPP_KEYCODE_HOME;
+ _sapp.keycodes[0x72] = SAPP_KEYCODE_INSERT;
+ _sapp.keycodes[0x7B] = SAPP_KEYCODE_LEFT;
+ _sapp.keycodes[0x3A] = SAPP_KEYCODE_LEFT_ALT;
+ _sapp.keycodes[0x3B] = SAPP_KEYCODE_LEFT_CONTROL;
+ _sapp.keycodes[0x38] = SAPP_KEYCODE_LEFT_SHIFT;
+ _sapp.keycodes[0x37] = SAPP_KEYCODE_LEFT_SUPER;
+ _sapp.keycodes[0x6E] = SAPP_KEYCODE_MENU;
+ _sapp.keycodes[0x47] = SAPP_KEYCODE_NUM_LOCK;
+ _sapp.keycodes[0x79] = SAPP_KEYCODE_PAGE_DOWN;
+ _sapp.keycodes[0x74] = SAPP_KEYCODE_PAGE_UP;
+ _sapp.keycodes[0x7C] = SAPP_KEYCODE_RIGHT;
+ _sapp.keycodes[0x3D] = SAPP_KEYCODE_RIGHT_ALT;
+ _sapp.keycodes[0x3E] = SAPP_KEYCODE_RIGHT_CONTROL;
+ _sapp.keycodes[0x3C] = SAPP_KEYCODE_RIGHT_SHIFT;
+ _sapp.keycodes[0x36] = SAPP_KEYCODE_RIGHT_SUPER;
+ _sapp.keycodes[0x31] = SAPP_KEYCODE_SPACE;
+ _sapp.keycodes[0x30] = SAPP_KEYCODE_TAB;
+ _sapp.keycodes[0x7E] = SAPP_KEYCODE_UP;
+ _sapp.keycodes[0x52] = SAPP_KEYCODE_KP_0;
+ _sapp.keycodes[0x53] = SAPP_KEYCODE_KP_1;
+ _sapp.keycodes[0x54] = SAPP_KEYCODE_KP_2;
+ _sapp.keycodes[0x55] = SAPP_KEYCODE_KP_3;
+ _sapp.keycodes[0x56] = SAPP_KEYCODE_KP_4;
+ _sapp.keycodes[0x57] = SAPP_KEYCODE_KP_5;
+ _sapp.keycodes[0x58] = SAPP_KEYCODE_KP_6;
+ _sapp.keycodes[0x59] = SAPP_KEYCODE_KP_7;
+ _sapp.keycodes[0x5B] = SAPP_KEYCODE_KP_8;
+ _sapp.keycodes[0x5C] = SAPP_KEYCODE_KP_9;
+ _sapp.keycodes[0x45] = SAPP_KEYCODE_KP_ADD;
+ _sapp.keycodes[0x41] = SAPP_KEYCODE_KP_DECIMAL;
+ _sapp.keycodes[0x4B] = SAPP_KEYCODE_KP_DIVIDE;
+ _sapp.keycodes[0x4C] = SAPP_KEYCODE_KP_ENTER;
+ _sapp.keycodes[0x51] = SAPP_KEYCODE_KP_EQUAL;
+ _sapp.keycodes[0x43] = SAPP_KEYCODE_KP_MULTIPLY;
+ _sapp.keycodes[0x4E] = SAPP_KEYCODE_KP_SUBTRACT;
+}
+
+_SOKOL_PRIVATE void _sapp_macos_discard_state(void) {
+ // NOTE: it's safe to call [release] on a nil object
+ if (_sapp.macos.keyup_monitor != nil) {
+ [NSEvent removeMonitor:_sapp.macos.keyup_monitor];
+ // NOTE: removeMonitor also releases the object
+ _sapp.macos.keyup_monitor = nil;
+ }
+ _SAPP_OBJC_RELEASE(_sapp.macos.tracking_area);
+ _SAPP_OBJC_RELEASE(_sapp.macos.app_dlg);
+ _SAPP_OBJC_RELEASE(_sapp.macos.win_dlg);
+ _SAPP_OBJC_RELEASE(_sapp.macos.view);
+ #if defined(SOKOL_METAL)
+ _SAPP_OBJC_RELEASE(_sapp.macos.mtl_device);
+ #endif
+ _SAPP_OBJC_RELEASE(_sapp.macos.window);
+}
+
+// undocumented methods for creating cursors (see GLFW 3.4 and imgui_impl_osx.mm)
+@interface NSCursor()
++ (id)_windowResizeNorthWestSouthEastCursor;
++ (id)_windowResizeNorthEastSouthWestCursor;
++ (id)_windowResizeNorthSouthCursor;
++ (id)_windowResizeEastWestCursor;
+@end
+
+_SOKOL_PRIVATE void _sapp_macos_init_cursors(void) {
+ _sapp.macos.cursors[SAPP_MOUSECURSOR_DEFAULT] = nil; // not a bug
+ _sapp.macos.cursors[SAPP_MOUSECURSOR_ARROW] = [NSCursor arrowCursor];
+ _sapp.macos.cursors[SAPP_MOUSECURSOR_IBEAM] = [NSCursor IBeamCursor];
+ _sapp.macos.cursors[SAPP_MOUSECURSOR_CROSSHAIR] = [NSCursor crosshairCursor];
+ _sapp.macos.cursors[SAPP_MOUSECURSOR_POINTING_HAND] = [NSCursor pointingHandCursor];
+ _sapp.macos.cursors[SAPP_MOUSECURSOR_RESIZE_EW] = [NSCursor respondsToSelector:@selector(_windowResizeEastWestCursor)] ? [NSCursor _windowResizeEastWestCursor] : [NSCursor resizeLeftRightCursor];
+ _sapp.macos.cursors[SAPP_MOUSECURSOR_RESIZE_NS] = [NSCursor respondsToSelector:@selector(_windowResizeNorthSouthCursor)] ? [NSCursor _windowResizeNorthSouthCursor] : [NSCursor resizeUpDownCursor];
+ _sapp.macos.cursors[SAPP_MOUSECURSOR_RESIZE_NWSE] = [NSCursor respondsToSelector:@selector(_windowResizeNorthWestSouthEastCursor)] ? [NSCursor _windowResizeNorthWestSouthEastCursor] : [NSCursor closedHandCursor];
+ _sapp.macos.cursors[SAPP_MOUSECURSOR_RESIZE_NESW] = [NSCursor respondsToSelector:@selector(_windowResizeNorthEastSouthWestCursor)] ? [NSCursor _windowResizeNorthEastSouthWestCursor] : [NSCursor closedHandCursor];
+ _sapp.macos.cursors[SAPP_MOUSECURSOR_RESIZE_ALL] = [NSCursor closedHandCursor];
+ _sapp.macos.cursors[SAPP_MOUSECURSOR_NOT_ALLOWED] = [NSCursor operationNotAllowedCursor];
+}
+
+_SOKOL_PRIVATE void _sapp_macos_run(const sapp_desc* desc) {
+ _sapp_init_state(desc);
+ _sapp_macos_init_keytable();
+ [NSApplication sharedApplication];
+
+ // set the application dock icon as early as possible, otherwise
+ // the dummy icon will be visible for a short time
+ sapp_set_icon(&_sapp.desc.icon);
+ _sapp.macos.app_dlg = [[_sapp_macos_app_delegate alloc] init];
+ NSApp.delegate = _sapp.macos.app_dlg;
+
+ // workaround for "no key-up sent while Cmd is pressed" taken from GLFW:
+ NSEvent* (^keyup_monitor)(NSEvent*) = ^NSEvent* (NSEvent* event) {
+ if ([event modifierFlags] & NSEventModifierFlagCommand) {
+ [[NSApp keyWindow] sendEvent:event];
+ }
+ return event;
+ };
+ _sapp.macos.keyup_monitor = [NSEvent addLocalMonitorForEventsMatchingMask:NSEventMaskKeyUp handler:keyup_monitor];
+
+ [NSApp run];
+ // NOTE: [NSApp run] never returns, instead cleanup code
+ // must be put into applicationWillTerminate
+}
+
+/* MacOS entry function */
+#if !defined(SOKOL_NO_ENTRY)
+int main(int argc, char* argv[]) {
+ sapp_desc desc = sokol_main(argc, argv);
+ _sapp_macos_run(&desc);
+ return 0;
+}
+#endif /* SOKOL_NO_ENTRY */
+
+_SOKOL_PRIVATE uint32_t _sapp_macos_mods(NSEvent* ev) {
+ const NSEventModifierFlags f = (ev == nil) ? NSEvent.modifierFlags : ev.modifierFlags;
+ const NSUInteger b = NSEvent.pressedMouseButtons;
+ uint32_t m = 0;
+ if (f & NSEventModifierFlagShift) {
+ m |= SAPP_MODIFIER_SHIFT;
+ }
+ if (f & NSEventModifierFlagControl) {
+ m |= SAPP_MODIFIER_CTRL;
+ }
+ if (f & NSEventModifierFlagOption) {
+ m |= SAPP_MODIFIER_ALT;
+ }
+ if (f & NSEventModifierFlagCommand) {
+ m |= SAPP_MODIFIER_SUPER;
+ }
+ if (0 != (b & (1<<0))) {
+ m |= SAPP_MODIFIER_LMB;
+ }
+ if (0 != (b & (1<<1))) {
+ m |= SAPP_MODIFIER_RMB;
+ }
+ if (0 != (b & (1<<2))) {
+ m |= SAPP_MODIFIER_MMB;
+ }
+ return m;
+}
+
+_SOKOL_PRIVATE void _sapp_macos_mouse_event(sapp_event_type type, sapp_mousebutton btn, uint32_t mod) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(type);
+ _sapp.event.mouse_button = btn;
+ _sapp.event.modifiers = mod;
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_macos_key_event(sapp_event_type type, sapp_keycode key, bool repeat, uint32_t mod) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(type);
+ _sapp.event.key_code = key;
+ _sapp.event.key_repeat = repeat;
+ _sapp.event.modifiers = mod;
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_macos_app_event(sapp_event_type type) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(type);
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+/* NOTE: unlike the iOS version of this function, the macOS version
+ can dynamically update the DPI scaling factor when a window is moved
+ between HighDPI / LowDPI screens.
+*/
+_SOKOL_PRIVATE void _sapp_macos_update_dimensions(void) {
+ if (_sapp.desc.high_dpi) {
+ _sapp.dpi_scale = [_sapp.macos.window screen].backingScaleFactor;
+ }
+ else {
+ _sapp.dpi_scale = 1.0f;
+ }
+ const NSRect bounds = [_sapp.macos.view bounds];
+ _sapp.window_width = (int)roundf(bounds.size.width);
+ _sapp.window_height = (int)roundf(bounds.size.height);
+ #if defined(SOKOL_METAL)
+ _sapp.framebuffer_width = (int)roundf(bounds.size.width * _sapp.dpi_scale);
+ _sapp.framebuffer_height = (int)roundf(bounds.size.height * _sapp.dpi_scale);
+ const CGSize fb_size = _sapp.macos.view.drawableSize;
+ const int cur_fb_width = (int)roundf(fb_size.width);
+ const int cur_fb_height = (int)roundf(fb_size.height);
+ const bool dim_changed = (_sapp.framebuffer_width != cur_fb_width) ||
+ (_sapp.framebuffer_height != cur_fb_height);
+ #elif defined(SOKOL_GLCORE33)
+ const int cur_fb_width = (int)roundf(bounds.size.width * _sapp.dpi_scale);
+ const int cur_fb_height = (int)roundf(bounds.size.height * _sapp.dpi_scale);
+ const bool dim_changed = (_sapp.framebuffer_width != cur_fb_width) ||
+ (_sapp.framebuffer_height != cur_fb_height);
+ _sapp.framebuffer_width = cur_fb_width;
+ _sapp.framebuffer_height = cur_fb_height;
+ #endif
+ if (_sapp.framebuffer_width == 0) {
+ _sapp.framebuffer_width = 1;
+ }
+ if (_sapp.framebuffer_height == 0) {
+ _sapp.framebuffer_height = 1;
+ }
+ if (_sapp.window_width == 0) {
+ _sapp.window_width = 1;
+ }
+ if (_sapp.window_height == 0) {
+ _sapp.window_height = 1;
+ }
+ if (dim_changed) {
+ #if defined(SOKOL_METAL)
+ CGSize drawable_size = { (CGFloat) _sapp.framebuffer_width, (CGFloat) _sapp.framebuffer_height };
+ _sapp.macos.view.drawableSize = drawable_size;
+ #else
+ // nothing to do for GL?
+ #endif
+ if (!_sapp.first_frame) {
+ _sapp_macos_app_event(SAPP_EVENTTYPE_RESIZED);
+ }
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_macos_toggle_fullscreen(void) {
+ /* NOTE: the _sapp.fullscreen flag is also notified by the
+ windowDidEnterFullscreen / windowDidExitFullscreen
+ event handlers
+ */
+ _sapp.fullscreen = !_sapp.fullscreen;
+ [_sapp.macos.window toggleFullScreen:nil];
+}
+
+_SOKOL_PRIVATE void _sapp_macos_set_clipboard_string(const char* str) {
+ @autoreleasepool {
+ NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
+ [pasteboard declareTypes:@[NSPasteboardTypeString] owner:nil];
+ [pasteboard setString:@(str) forType:NSPasteboardTypeString];
+ }
+}
+
+_SOKOL_PRIVATE const char* _sapp_macos_get_clipboard_string(void) {
+ SOKOL_ASSERT(_sapp.clipboard.buffer);
+ @autoreleasepool {
+ _sapp.clipboard.buffer[0] = 0;
+ NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
+ if (![[pasteboard types] containsObject:NSPasteboardTypeString]) {
+ return _sapp.clipboard.buffer;
+ }
+ NSString* str = [pasteboard stringForType:NSPasteboardTypeString];
+ if (!str) {
+ return _sapp.clipboard.buffer;
+ }
+ _sapp_strcpy([str UTF8String], _sapp.clipboard.buffer, _sapp.clipboard.buf_size);
+ }
+ return _sapp.clipboard.buffer;
+}
+
+_SOKOL_PRIVATE void _sapp_macos_update_window_title(void) {
+ [_sapp.macos.window setTitle: [NSString stringWithUTF8String:_sapp.window_title]];
+}
+
+_SOKOL_PRIVATE void _sapp_macos_mouse_update_from_nspoint(NSPoint mouse_pos, bool clear_dxdy) {
+ if (!_sapp.mouse.locked) {
+ float new_x = mouse_pos.x * _sapp.dpi_scale;
+ float new_y = _sapp.framebuffer_height - (mouse_pos.y * _sapp.dpi_scale) - 1;
+ if (clear_dxdy) {
+ _sapp.mouse.dx = 0.0f;
+ _sapp.mouse.dy = 0.0f;
+ }
+ else if (_sapp.mouse.pos_valid) {
+ // don't update dx/dy in the very first update
+ _sapp.mouse.dx = new_x - _sapp.mouse.x;
+ _sapp.mouse.dy = new_y - _sapp.mouse.y;
+ }
+ _sapp.mouse.x = new_x;
+ _sapp.mouse.y = new_y;
+ _sapp.mouse.pos_valid = true;
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_macos_mouse_update_from_nsevent(NSEvent* event, bool clear_dxdy) {
+ _sapp_macos_mouse_update_from_nspoint(event.locationInWindow, clear_dxdy);
+}
+
+_SOKOL_PRIVATE void _sapp_macos_show_mouse(bool visible) {
+ /* NOTE: this function is only called when the mouse visibility actually changes */
+ if (visible) {
+ CGDisplayShowCursor(kCGDirectMainDisplay);
+ }
+ else {
+ CGDisplayHideCursor(kCGDirectMainDisplay);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_macos_lock_mouse(bool lock) {
+ if (lock == _sapp.mouse.locked) {
+ return;
+ }
+ _sapp.mouse.dx = 0.0f;
+ _sapp.mouse.dy = 0.0f;
+ _sapp.mouse.locked = lock;
+ /*
+ NOTE that this code doesn't warp the mouse cursor to the window
+ center as everybody else does it. This lead to a spike in the
+ *second* mouse-moved event after the warp happened. The
+ mouse centering doesn't seem to be required (mouse-moved events
+ are reported correctly even when the cursor is at an edge of the screen).
+
+ NOTE also that the hide/show of the mouse cursor should properly
+ stack with calls to sapp_show_mouse()
+ */
+ if (_sapp.mouse.locked) {
+ CGAssociateMouseAndMouseCursorPosition(NO);
+ [NSCursor hide];
+ }
+ else {
+ [NSCursor unhide];
+ CGAssociateMouseAndMouseCursorPosition(YES);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_macos_update_cursor(sapp_mouse_cursor cursor, bool shown) {
+ // show/hide cursor only if visibility status has changed (required because show/hide stacks)
+ if (shown != _sapp.mouse.shown) {
+ if (shown) {
+ [NSCursor unhide];
+ }
+ else {
+ [NSCursor hide];
+ }
+ }
+ // update cursor type
+ SOKOL_ASSERT((cursor >= 0) && (cursor < _SAPP_MOUSECURSOR_NUM));
+ if (_sapp.macos.cursors[cursor]) {
+ [_sapp.macos.cursors[cursor] set];
+ }
+ else {
+ [[NSCursor arrowCursor] set];
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_macos_set_icon(const sapp_icon_desc* icon_desc, int num_images) {
+ NSDockTile* dock_tile = NSApp.dockTile;
+ const int wanted_width = (int) dock_tile.size.width;
+ const int wanted_height = (int) dock_tile.size.height;
+ const int img_index = _sapp_image_bestmatch(icon_desc->images, num_images, wanted_width, wanted_height);
+ const sapp_image_desc* img_desc = &icon_desc->images[img_index];
+
+ CGColorSpaceRef cg_color_space = CGColorSpaceCreateDeviceRGB();
+ CFDataRef cf_data = CFDataCreate(kCFAllocatorDefault, (const UInt8*)img_desc->pixels.ptr, (CFIndex)img_desc->pixels.size);
+ CGDataProviderRef cg_data_provider = CGDataProviderCreateWithCFData(cf_data);
+ CGImageRef cg_img = CGImageCreate(
+ (size_t)img_desc->width, // width
+ (size_t)img_desc->height, // height
+ 8, // bitsPerComponent
+ 32, // bitsPerPixel
+ (size_t)img_desc->width * 4,// bytesPerRow
+ cg_color_space, // space
+ kCGImageAlphaLast | kCGImageByteOrderDefault, // bitmapInfo
+ cg_data_provider, // provider
+ NULL, // decode
+ false, // shouldInterpolate
+ kCGRenderingIntentDefault);
+ CFRelease(cf_data);
+ CGDataProviderRelease(cg_data_provider);
+ CGColorSpaceRelease(cg_color_space);
+
+ NSImage* ns_image = [[NSImage alloc] initWithCGImage:cg_img size:dock_tile.size];
+ dock_tile.contentView = [NSImageView imageViewWithImage:ns_image];
+ [dock_tile display];
+ _SAPP_OBJC_RELEASE(ns_image);
+ CGImageRelease(cg_img);
+}
+
+_SOKOL_PRIVATE void _sapp_macos_frame(void) {
+ _sapp_frame();
+ if (_sapp.quit_requested || _sapp.quit_ordered) {
+ [_sapp.macos.window performClose:nil];
+ }
+}
+
+@implementation _sapp_macos_app_delegate
+- (void)applicationDidFinishLaunching:(NSNotification*)aNotification {
+ _SOKOL_UNUSED(aNotification);
+ _sapp_macos_init_cursors();
+ if ((_sapp.window_width == 0) || (_sapp.window_height == 0)) {
+ // use 4/5 of screen size as default size
+ NSRect screen_rect = NSScreen.mainScreen.frame;
+ if (_sapp.window_width == 0) {
+ _sapp.window_width = (int)roundf((screen_rect.size.width * 4.0f) / 5.0f);
+ }
+ if (_sapp.window_height == 0) {
+ _sapp.window_height = (int)roundf((screen_rect.size.height * 4.0f) / 5.0f);
+ }
+ }
+ const NSUInteger style =
+ NSWindowStyleMaskTitled |
+ NSWindowStyleMaskClosable |
+ NSWindowStyleMaskMiniaturizable |
+ NSWindowStyleMaskResizable;
+ NSRect window_rect = NSMakeRect(0, 0, _sapp.window_width, _sapp.window_height);
+ _sapp.macos.window = [[_sapp_macos_window alloc]
+ initWithContentRect:window_rect
+ styleMask:style
+ backing:NSBackingStoreBuffered
+ defer:NO];
+ _sapp.macos.window.releasedWhenClosed = NO; // this is necessary for proper cleanup in applicationWillTerminate
+ _sapp.macos.window.title = [NSString stringWithUTF8String:_sapp.window_title];
+ _sapp.macos.window.acceptsMouseMovedEvents = YES;
+ _sapp.macos.window.restorable = YES;
+
+ _sapp.macos.win_dlg = [[_sapp_macos_window_delegate alloc] init];
+ _sapp.macos.window.delegate = _sapp.macos.win_dlg;
+ #if defined(SOKOL_METAL)
+ NSInteger max_fps = 60;
+ #if (__MAC_OS_X_VERSION_MAX_ALLOWED >= 120000)
+ if (@available(macOS 12.0, *)) {
+ max_fps = [NSScreen.mainScreen maximumFramesPerSecond];
+ }
+ #endif
+ _sapp.macos.mtl_device = MTLCreateSystemDefaultDevice();
+ _sapp.macos.view = [[_sapp_macos_view alloc] init];
+ [_sapp.macos.view updateTrackingAreas];
+ _sapp.macos.view.preferredFramesPerSecond = max_fps / _sapp.swap_interval;
+ _sapp.macos.view.device = _sapp.macos.mtl_device;
+ _sapp.macos.view.colorPixelFormat = MTLPixelFormatBGRA8Unorm;
+ _sapp.macos.view.depthStencilPixelFormat = MTLPixelFormatDepth32Float_Stencil8;
+ _sapp.macos.view.sampleCount = (NSUInteger) _sapp.sample_count;
+ _sapp.macos.view.autoResizeDrawable = false;
+ _sapp.macos.window.contentView = _sapp.macos.view;
+ [_sapp.macos.window makeFirstResponder:_sapp.macos.view];
+ _sapp.macos.view.layer.magnificationFilter = kCAFilterNearest;
+ #elif defined(SOKOL_GLCORE33)
+ NSOpenGLPixelFormatAttribute attrs[32];
+ int i = 0;
+ attrs[i++] = NSOpenGLPFAAccelerated;
+ attrs[i++] = NSOpenGLPFADoubleBuffer;
+ attrs[i++] = NSOpenGLPFAOpenGLProfile;
+ const int glVersion = _sapp.desc.gl_major_version * 10 + _sapp.desc.gl_minor_version;
+ switch(glVersion) {
+ case 10: attrs[i++] = NSOpenGLProfileVersionLegacy; break;
+ case 32: attrs[i++] = NSOpenGLProfileVersion3_2Core; break;
+ case 41: attrs[i++] = NSOpenGLProfileVersion4_1Core; break;
+ default:
+ _SAPP_PANIC(MACOS_INVALID_NSOPENGL_PROFILE);
+ }
+ attrs[i++] = NSOpenGLPFAColorSize; attrs[i++] = 24;
+ attrs[i++] = NSOpenGLPFAAlphaSize; attrs[i++] = 8;
+ attrs[i++] = NSOpenGLPFADepthSize; attrs[i++] = 24;
+ attrs[i++] = NSOpenGLPFAStencilSize; attrs[i++] = 8;
+ if (_sapp.sample_count > 1) {
+ attrs[i++] = NSOpenGLPFAMultisample;
+ attrs[i++] = NSOpenGLPFASampleBuffers; attrs[i++] = 1;
+ attrs[i++] = NSOpenGLPFASamples; attrs[i++] = (NSOpenGLPixelFormatAttribute)_sapp.sample_count;
+ }
+ else {
+ attrs[i++] = NSOpenGLPFASampleBuffers; attrs[i++] = 0;
+ }
+ attrs[i++] = 0;
+ NSOpenGLPixelFormat* glpixelformat_obj = [[NSOpenGLPixelFormat alloc] initWithAttributes:attrs];
+ SOKOL_ASSERT(glpixelformat_obj != nil);
+
+ _sapp.macos.view = [[_sapp_macos_view alloc]
+ initWithFrame:window_rect
+ pixelFormat:glpixelformat_obj];
+ _SAPP_OBJC_RELEASE(glpixelformat_obj);
+ [_sapp.macos.view updateTrackingAreas];
+ if (_sapp.desc.high_dpi) {
+ [_sapp.macos.view setWantsBestResolutionOpenGLSurface:YES];
+ }
+ else {
+ [_sapp.macos.view setWantsBestResolutionOpenGLSurface:NO];
+ }
+
+ _sapp.macos.window.contentView = _sapp.macos.view;
+ [_sapp.macos.window makeFirstResponder:_sapp.macos.view];
+
+ NSTimer* timer_obj = [NSTimer timerWithTimeInterval:0.001
+ target:_sapp.macos.view
+ selector:@selector(timerFired:)
+ userInfo:nil
+ repeats:YES];
+ [[NSRunLoop currentRunLoop] addTimer:timer_obj forMode:NSDefaultRunLoopMode];
+ timer_obj = nil;
+ #endif
+ [_sapp.macos.window center];
+ _sapp.valid = true;
+ if (_sapp.fullscreen) {
+ /* ^^^ on GL, this already toggles a rendered frame, so set the valid flag before */
+ [_sapp.macos.window toggleFullScreen:self];
+ }
+ NSApp.activationPolicy = NSApplicationActivationPolicyRegular;
+ [NSApp activateIgnoringOtherApps:YES];
+ [_sapp.macos.window makeKeyAndOrderFront:nil];
+ _sapp_macos_update_dimensions();
+ [NSEvent setMouseCoalescingEnabled:NO];
+}
+
+- (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication*)sender {
+ _SOKOL_UNUSED(sender);
+ return YES;
+}
+
+- (void)applicationWillTerminate:(NSNotification*)notification {
+ _SOKOL_UNUSED(notification);
+ _sapp_call_cleanup();
+ _sapp_macos_discard_state();
+ _sapp_discard_state();
+}
+@end
+
+@implementation _sapp_macos_window_delegate
+- (BOOL)windowShouldClose:(id)sender {
+ _SOKOL_UNUSED(sender);
+ /* only give user-code a chance to intervene when sapp_quit() wasn't already called */
+ if (!_sapp.quit_ordered) {
+ /* if window should be closed and event handling is enabled, give user code
+ a chance to intervene via sapp_cancel_quit()
+ */
+ _sapp.quit_requested = true;
+ _sapp_macos_app_event(SAPP_EVENTTYPE_QUIT_REQUESTED);
+ /* user code hasn't intervened, quit the app */
+ if (_sapp.quit_requested) {
+ _sapp.quit_ordered = true;
+ }
+ }
+ if (_sapp.quit_ordered) {
+ return YES;
+ }
+ else {
+ return NO;
+ }
+}
+
+- (void)windowDidResize:(NSNotification*)notification {
+ _SOKOL_UNUSED(notification);
+ _sapp_macos_update_dimensions();
+}
+
+- (void)windowDidChangeScreen:(NSNotification*)notification {
+ _SOKOL_UNUSED(notification);
+ _sapp_timing_reset(&_sapp.timing);
+ _sapp_macos_update_dimensions();
+}
+
+- (void)windowDidMiniaturize:(NSNotification*)notification {
+ _SOKOL_UNUSED(notification);
+ _sapp_macos_app_event(SAPP_EVENTTYPE_ICONIFIED);
+}
+
+- (void)windowDidDeminiaturize:(NSNotification*)notification {
+ _SOKOL_UNUSED(notification);
+ _sapp_macos_app_event(SAPP_EVENTTYPE_RESTORED);
+}
+
+- (void)windowDidBecomeKey:(NSNotification*)notification {
+ _SOKOL_UNUSED(notification);
+ _sapp_macos_app_event(SAPP_EVENTTYPE_FOCUSED);
+}
+
+- (void)windowDidResignKey:(NSNotification*)notification {
+ _SOKOL_UNUSED(notification);
+ _sapp_macos_app_event(SAPP_EVENTTYPE_UNFOCUSED);
+}
+
+- (void)windowDidEnterFullScreen:(NSNotification*)notification {
+ _SOKOL_UNUSED(notification);
+ _sapp.fullscreen = true;
+}
+
+- (void)windowDidExitFullScreen:(NSNotification*)notification {
+ _SOKOL_UNUSED(notification);
+ _sapp.fullscreen = false;
+}
+@end
+
+@implementation _sapp_macos_window
+- (instancetype)initWithContentRect:(NSRect)contentRect
+ styleMask:(NSWindowStyleMask)style
+ backing:(NSBackingStoreType)backingStoreType
+ defer:(BOOL)flag {
+ if (self = [super initWithContentRect:contentRect styleMask:style backing:backingStoreType defer:flag]) {
+ #if __MAC_OS_X_VERSION_MAX_ALLOWED >= 101300
+ [self registerForDraggedTypes:[NSArray arrayWithObject:NSPasteboardTypeFileURL]];
+ #endif
+ }
+ return self;
+}
+
+- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)sender {
+ return NSDragOperationCopy;
+}
+
+- (NSDragOperation)draggingUpdated:(id<NSDraggingInfo>)sender {
+ return NSDragOperationCopy;
+}
+
+- (BOOL)performDragOperation:(id<NSDraggingInfo>)sender {
+ #if __MAC_OS_X_VERSION_MAX_ALLOWED >= 101300
+ NSPasteboard *pboard = [sender draggingPasteboard];
+ if ([pboard.types containsObject:NSPasteboardTypeFileURL]) {
+ _sapp_clear_drop_buffer();
+ _sapp.drop.num_files = ((int)pboard.pasteboardItems.count > _sapp.drop.max_files) ? _sapp.drop.max_files : (int)pboard.pasteboardItems.count;
+ bool drop_failed = false;
+ for (int i = 0; i < _sapp.drop.num_files; i++) {
+ NSURL *fileUrl = [NSURL fileURLWithPath:[pboard.pasteboardItems[(NSUInteger)i] stringForType:NSPasteboardTypeFileURL]];
+ if (!_sapp_strcpy(fileUrl.standardizedURL.path.UTF8String, _sapp_dropped_file_path_ptr(i), _sapp.drop.max_path_length)) {
+ _SAPP_ERROR(DROPPED_FILE_PATH_TOO_LONG);
+ drop_failed = true;
+ break;
+ }
+ }
+ if (!drop_failed) {
+ if (_sapp_events_enabled()) {
+ _sapp_macos_mouse_update_from_nspoint(sender.draggingLocation, true);
+ _sapp_init_event(SAPP_EVENTTYPE_FILES_DROPPED);
+ _sapp.event.modifiers = _sapp_macos_mods(nil);
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+ else {
+ _sapp_clear_drop_buffer();
+ _sapp.drop.num_files = 0;
+ }
+ return YES;
+ }
+ #endif
+ return NO;
+}
+@end
+
+@implementation _sapp_macos_view
+#if defined(SOKOL_GLCORE33)
+- (void)timerFired:(id)sender {
+ _SOKOL_UNUSED(sender);
+ [self setNeedsDisplay:YES];
+}
+- (void)prepareOpenGL {
+ [super prepareOpenGL];
+ GLint swapInt = 1;
+ NSOpenGLContext* ctx = [_sapp.macos.view openGLContext];
+ [ctx setValues:&swapInt forParameter:NSOpenGLContextParameterSwapInterval];
+ [ctx makeCurrentContext];
+}
+#endif
+
+_SOKOL_PRIVATE void _sapp_macos_poll_input_events() {
+ /*
+
+ NOTE: late event polling temporarily out-commented to check if this
+ causes infrequent and almost impossible to reproduce problems with the
+ window close events, see:
+ https://github.com/floooh/sokol/pull/483#issuecomment-805148815
+
+
+ const NSEventMask mask = NSEventMaskLeftMouseDown |
+ NSEventMaskLeftMouseUp|
+ NSEventMaskRightMouseDown |
+ NSEventMaskRightMouseUp |
+ NSEventMaskMouseMoved |
+ NSEventMaskLeftMouseDragged |
+ NSEventMaskRightMouseDragged |
+ NSEventMaskMouseEntered |
+ NSEventMaskMouseExited |
+ NSEventMaskKeyDown |
+ NSEventMaskKeyUp |
+ NSEventMaskCursorUpdate |
+ NSEventMaskScrollWheel |
+ NSEventMaskTabletPoint |
+ NSEventMaskTabletProximity |
+ NSEventMaskOtherMouseDown |
+ NSEventMaskOtherMouseUp |
+ NSEventMaskOtherMouseDragged |
+ NSEventMaskPressure |
+ NSEventMaskDirectTouch;
+ @autoreleasepool {
+ for (;;) {
+ // NOTE: using NSDefaultRunLoopMode here causes stuttering in the GL backend,
+ // see: https://github.com/floooh/sokol/issues/486
+ NSEvent* event = [NSApp nextEventMatchingMask:mask untilDate:nil inMode:NSEventTrackingRunLoopMode dequeue:YES];
+ if (event == nil) {
+ break;
+ }
+ [NSApp sendEvent:event];
+ }
+ }
+ */
+}
+
+- (void)drawRect:(NSRect)rect {
+ _SOKOL_UNUSED(rect);
+ _sapp_timing_measure(&_sapp.timing);
+ /* Catch any last-moment input events */
+ _sapp_macos_poll_input_events();
+ @autoreleasepool {
+ _sapp_macos_frame();
+ }
+ #if !defined(SOKOL_METAL)
+ [[_sapp.macos.view openGLContext] flushBuffer];
+ #endif
+}
+
+- (BOOL)isOpaque {
+ return YES;
+}
+- (BOOL)canBecomeKeyView {
+ return YES;
+}
+- (BOOL)acceptsFirstResponder {
+ return YES;
+}
+- (void)updateTrackingAreas {
+ if (_sapp.macos.tracking_area != nil) {
+ [self removeTrackingArea:_sapp.macos.tracking_area];
+ _SAPP_OBJC_RELEASE(_sapp.macos.tracking_area);
+ }
+ const NSTrackingAreaOptions options = NSTrackingMouseEnteredAndExited |
+ NSTrackingActiveInKeyWindow |
+ NSTrackingEnabledDuringMouseDrag |
+ NSTrackingCursorUpdate |
+ NSTrackingInVisibleRect |
+ NSTrackingAssumeInside;
+ _sapp.macos.tracking_area = [[NSTrackingArea alloc] initWithRect:[self bounds] options:options owner:self userInfo:nil];
+ [self addTrackingArea:_sapp.macos.tracking_area];
+ [super updateTrackingAreas];
+}
+
+// helper function to make GL context active
+static void _sapp_gl_make_current(void) {
+ #if defined(SOKOL_GLCORE33)
+ [[_sapp.macos.view openGLContext] makeCurrentContext];
+ #endif
+}
+
+- (void)mouseEntered:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, true);
+ /* don't send mouse enter/leave while dragging (so that it behaves the same as
+ on Windows while SetCapture is active
+ */
+ if (0 == _sapp.macos.mouse_buttons) {
+ _sapp_macos_mouse_event(SAPP_EVENTTYPE_MOUSE_ENTER, SAPP_MOUSEBUTTON_INVALID, _sapp_macos_mods(event));
+ }
+}
+- (void)mouseExited:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, true);
+ if (0 == _sapp.macos.mouse_buttons) {
+ _sapp_macos_mouse_event(SAPP_EVENTTYPE_MOUSE_LEAVE, SAPP_MOUSEBUTTON_INVALID, _sapp_macos_mods(event));
+ }
+}
+- (void)mouseDown:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, false);
+ _sapp_macos_mouse_event(SAPP_EVENTTYPE_MOUSE_DOWN, SAPP_MOUSEBUTTON_LEFT, _sapp_macos_mods(event));
+ _sapp.macos.mouse_buttons |= (1<<SAPP_MOUSEBUTTON_LEFT);
+}
+- (void)mouseUp:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, false);
+ _sapp_macos_mouse_event(SAPP_EVENTTYPE_MOUSE_UP, SAPP_MOUSEBUTTON_LEFT, _sapp_macos_mods(event));
+ _sapp.macos.mouse_buttons &= ~(1<<SAPP_MOUSEBUTTON_LEFT);
+}
+- (void)rightMouseDown:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, false);
+ _sapp_macos_mouse_event(SAPP_EVENTTYPE_MOUSE_DOWN, SAPP_MOUSEBUTTON_RIGHT, _sapp_macos_mods(event));
+ _sapp.macos.mouse_buttons |= (1<<SAPP_MOUSEBUTTON_RIGHT);
+}
+- (void)rightMouseUp:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, false);
+ _sapp_macos_mouse_event(SAPP_EVENTTYPE_MOUSE_UP, SAPP_MOUSEBUTTON_RIGHT, _sapp_macos_mods(event));
+ _sapp.macos.mouse_buttons &= ~(1<<SAPP_MOUSEBUTTON_RIGHT);
+}
+- (void)otherMouseDown:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, false);
+ if (2 == event.buttonNumber) {
+ _sapp_macos_mouse_event(SAPP_EVENTTYPE_MOUSE_DOWN, SAPP_MOUSEBUTTON_MIDDLE, _sapp_macos_mods(event));
+ _sapp.macos.mouse_buttons |= (1<<SAPP_MOUSEBUTTON_MIDDLE);
+ }
+}
+- (void)otherMouseUp:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, false);
+ if (2 == event.buttonNumber) {
+ _sapp_macos_mouse_event(SAPP_EVENTTYPE_MOUSE_UP, SAPP_MOUSEBUTTON_MIDDLE, _sapp_macos_mods(event));
+ _sapp.macos.mouse_buttons &= (1<<SAPP_MOUSEBUTTON_MIDDLE);
+ }
+}
+- (void)otherMouseDragged:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, false);
+ if (2 == event.buttonNumber) {
+ if (_sapp.mouse.locked) {
+ _sapp.mouse.dx = [event deltaX];
+ _sapp.mouse.dy = [event deltaY];
+ }
+ _sapp_macos_mouse_event(SAPP_EVENTTYPE_MOUSE_MOVE, SAPP_MOUSEBUTTON_INVALID, _sapp_macos_mods(event));
+ }
+}
+- (void)mouseMoved:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, false);
+ if (_sapp.mouse.locked) {
+ _sapp.mouse.dx = [event deltaX];
+ _sapp.mouse.dy = [event deltaY];
+ }
+ _sapp_macos_mouse_event(SAPP_EVENTTYPE_MOUSE_MOVE, SAPP_MOUSEBUTTON_INVALID , _sapp_macos_mods(event));
+}
+- (void)mouseDragged:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, false);
+ if (_sapp.mouse.locked) {
+ _sapp.mouse.dx = [event deltaX];
+ _sapp.mouse.dy = [event deltaY];
+ }
+ _sapp_macos_mouse_event(SAPP_EVENTTYPE_MOUSE_MOVE, SAPP_MOUSEBUTTON_INVALID , _sapp_macos_mods(event));
+}
+- (void)rightMouseDragged:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, false);
+ if (_sapp.mouse.locked) {
+ _sapp.mouse.dx = [event deltaX];
+ _sapp.mouse.dy = [event deltaY];
+ }
+ _sapp_macos_mouse_event(SAPP_EVENTTYPE_MOUSE_MOVE, SAPP_MOUSEBUTTON_INVALID, _sapp_macos_mods(event));
+}
+- (void)scrollWheel:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_mouse_update_from_nsevent(event, true);
+ if (_sapp_events_enabled()) {
+ float dx = (float) event.scrollingDeltaX;
+ float dy = (float) event.scrollingDeltaY;
+ if (event.hasPreciseScrollingDeltas) {
+ dx *= 0.1;
+ dy *= 0.1;
+ }
+ if ((_sapp_absf(dx) > 0.0f) || (_sapp_absf(dy) > 0.0f)) {
+ _sapp_init_event(SAPP_EVENTTYPE_MOUSE_SCROLL);
+ _sapp.event.modifiers = _sapp_macos_mods(event);
+ _sapp.event.scroll_x = dx;
+ _sapp.event.scroll_y = dy;
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+}
+- (void)keyDown:(NSEvent*)event {
+ if (_sapp_events_enabled()) {
+ _sapp_gl_make_current();
+ const uint32_t mods = _sapp_macos_mods(event);
+ const sapp_keycode key_code = _sapp_translate_key(event.keyCode);
+ _sapp_macos_key_event(SAPP_EVENTTYPE_KEY_DOWN, key_code, event.isARepeat, mods);
+ const NSString* chars = event.characters;
+ const NSUInteger len = chars.length;
+ if (len > 0) {
+ _sapp_init_event(SAPP_EVENTTYPE_CHAR);
+ _sapp.event.modifiers = mods;
+ for (NSUInteger i = 0; i < len; i++) {
+ const unichar codepoint = [chars characterAtIndex:i];
+ if ((codepoint & 0xFF00) == 0xF700) {
+ continue;
+ }
+ _sapp.event.char_code = codepoint;
+ _sapp.event.key_repeat = event.isARepeat;
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+ /* if this is a Cmd+V (paste), also send a CLIPBOARD_PASTE event */
+ if (_sapp.clipboard.enabled && (mods == SAPP_MODIFIER_SUPER) && (key_code == SAPP_KEYCODE_V)) {
+ _sapp_init_event(SAPP_EVENTTYPE_CLIPBOARD_PASTED);
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+}
+- (void)keyUp:(NSEvent*)event {
+ _sapp_gl_make_current();
+ _sapp_macos_key_event(SAPP_EVENTTYPE_KEY_UP,
+ _sapp_translate_key(event.keyCode),
+ event.isARepeat,
+ _sapp_macos_mods(event));
+}
+- (void)flagsChanged:(NSEvent*)event {
+ const uint32_t old_f = _sapp.macos.flags_changed_store;
+ const uint32_t new_f = (uint32_t)event.modifierFlags;
+ _sapp.macos.flags_changed_store = new_f;
+ sapp_keycode key_code = SAPP_KEYCODE_INVALID;
+ bool down = false;
+ if ((new_f ^ old_f) & NSEventModifierFlagShift) {
+ key_code = SAPP_KEYCODE_LEFT_SHIFT;
+ down = 0 != (new_f & NSEventModifierFlagShift);
+ }
+ if ((new_f ^ old_f) & NSEventModifierFlagControl) {
+ key_code = SAPP_KEYCODE_LEFT_CONTROL;
+ down = 0 != (new_f & NSEventModifierFlagControl);
+ }
+ if ((new_f ^ old_f) & NSEventModifierFlagOption) {
+ key_code = SAPP_KEYCODE_LEFT_ALT;
+ down = 0 != (new_f & NSEventModifierFlagOption);
+ }
+ if ((new_f ^ old_f) & NSEventModifierFlagCommand) {
+ key_code = SAPP_KEYCODE_LEFT_SUPER;
+ down = 0 != (new_f & NSEventModifierFlagCommand);
+ }
+ if (key_code != SAPP_KEYCODE_INVALID) {
+ _sapp_macos_key_event(down ? SAPP_EVENTTYPE_KEY_DOWN : SAPP_EVENTTYPE_KEY_UP,
+ key_code,
+ false,
+ _sapp_macos_mods(event));
+ }
+}
+@end
+
+#endif // macOS
+
+// ██ ██████ ███████
+// ██ ██ ██ ██
+// ██ ██ ██ ███████
+// ██ ██ ██ ██
+// ██ ██████ ███████
+//
+// >>ios
+#if defined(_SAPP_IOS)
+
+_SOKOL_PRIVATE void _sapp_ios_discard_state(void) {
+ // NOTE: it's safe to call [release] on a nil object
+ _SAPP_OBJC_RELEASE(_sapp.ios.textfield_dlg);
+ _SAPP_OBJC_RELEASE(_sapp.ios.textfield);
+ #if defined(SOKOL_METAL)
+ _SAPP_OBJC_RELEASE(_sapp.ios.view_ctrl);
+ _SAPP_OBJC_RELEASE(_sapp.ios.mtl_device);
+ #else
+ _SAPP_OBJC_RELEASE(_sapp.ios.view_ctrl);
+ _SAPP_OBJC_RELEASE(_sapp.ios.eagl_ctx);
+ #endif
+ _SAPP_OBJC_RELEASE(_sapp.ios.view);
+ _SAPP_OBJC_RELEASE(_sapp.ios.window);
+}
+
+_SOKOL_PRIVATE void _sapp_ios_run(const sapp_desc* desc) {
+ _sapp_init_state(desc);
+ static int argc = 1;
+ static char* argv[] = { (char*)"sokol_app" };
+ UIApplicationMain(argc, argv, nil, NSStringFromClass([_sapp_app_delegate class]));
+}
+
+/* iOS entry function */
+#if !defined(SOKOL_NO_ENTRY)
+int main(int argc, char* argv[]) {
+ sapp_desc desc = sokol_main(argc, argv);
+ _sapp_ios_run(&desc);
+ return 0;
+}
+#endif /* SOKOL_NO_ENTRY */
+
+_SOKOL_PRIVATE void _sapp_ios_app_event(sapp_event_type type) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(type);
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_ios_touch_event(sapp_event_type type, NSSet<UITouch *>* touches, UIEvent* event) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(type);
+ NSEnumerator* enumerator = event.allTouches.objectEnumerator;
+ UITouch* ios_touch;
+ while ((ios_touch = [enumerator nextObject])) {
+ if ((_sapp.event.num_touches + 1) < SAPP_MAX_TOUCHPOINTS) {
+ CGPoint ios_pos = [ios_touch locationInView:_sapp.ios.view];
+ sapp_touchpoint* cur_point = &_sapp.event.touches[_sapp.event.num_touches++];
+ cur_point->identifier = (uintptr_t) ios_touch;
+ cur_point->pos_x = ios_pos.x * _sapp.dpi_scale;
+ cur_point->pos_y = ios_pos.y * _sapp.dpi_scale;
+ cur_point->changed = [touches containsObject:ios_touch];
+ }
+ }
+ if (_sapp.event.num_touches > 0) {
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_ios_update_dimensions(void) {
+ CGRect screen_rect = UIScreen.mainScreen.bounds;
+ _sapp.framebuffer_width = (int)roundf(screen_rect.size.width * _sapp.dpi_scale);
+ _sapp.framebuffer_height = (int)roundf(screen_rect.size.height * _sapp.dpi_scale);
+ _sapp.window_width = (int)roundf(screen_rect.size.width);
+ _sapp.window_height = (int)roundf(screen_rect.size.height);
+ int cur_fb_width, cur_fb_height;
+ #if defined(SOKOL_METAL)
+ const CGSize fb_size = _sapp.ios.view.drawableSize;
+ cur_fb_width = (int)roundf(fb_size.width);
+ cur_fb_height = (int)roundf(fb_size.height);
+ #else
+ cur_fb_width = (int)roundf(_sapp.ios.view.drawableWidth);
+ cur_fb_height = (int)roundf(_sapp.ios.view.drawableHeight);
+ #endif
+ const bool dim_changed = (_sapp.framebuffer_width != cur_fb_width) ||
+ (_sapp.framebuffer_height != cur_fb_height);
+ if (dim_changed) {
+ #if defined(SOKOL_METAL)
+ const CGSize drawable_size = { (CGFloat) _sapp.framebuffer_width, (CGFloat) _sapp.framebuffer_height };
+ _sapp.ios.view.drawableSize = drawable_size;
+ #else
+ // nothing to do here, GLKView correctly respects the view's contentScaleFactor
+ #endif
+ if (!_sapp.first_frame) {
+ _sapp_ios_app_event(SAPP_EVENTTYPE_RESIZED);
+ }
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_ios_frame(void) {
+ _sapp_ios_update_dimensions();
+ _sapp_frame();
+}
+
+_SOKOL_PRIVATE void _sapp_ios_show_keyboard(bool shown) {
+ /* if not happened yet, create an invisible text field */
+ if (nil == _sapp.ios.textfield) {
+ _sapp.ios.textfield_dlg = [[_sapp_textfield_dlg alloc] init];
+ _sapp.ios.textfield = [[UITextField alloc] initWithFrame:CGRectMake(10, 10, 100, 50)];
+ _sapp.ios.textfield.keyboardType = UIKeyboardTypeDefault;
+ _sapp.ios.textfield.returnKeyType = UIReturnKeyDefault;
+ _sapp.ios.textfield.autocapitalizationType = UITextAutocapitalizationTypeNone;
+ _sapp.ios.textfield.autocorrectionType = UITextAutocorrectionTypeNo;
+ _sapp.ios.textfield.spellCheckingType = UITextSpellCheckingTypeNo;
+ _sapp.ios.textfield.hidden = YES;
+ _sapp.ios.textfield.text = @"x";
+ _sapp.ios.textfield.delegate = _sapp.ios.textfield_dlg;
+ [_sapp.ios.view_ctrl.view addSubview:_sapp.ios.textfield];
+
+ [[NSNotificationCenter defaultCenter] addObserver:_sapp.ios.textfield_dlg
+ selector:@selector(keyboardWasShown:)
+ name:UIKeyboardDidShowNotification object:nil];
+ [[NSNotificationCenter defaultCenter] addObserver:_sapp.ios.textfield_dlg
+ selector:@selector(keyboardWillBeHidden:)
+ name:UIKeyboardWillHideNotification object:nil];
+ [[NSNotificationCenter defaultCenter] addObserver:_sapp.ios.textfield_dlg
+ selector:@selector(keyboardDidChangeFrame:)
+ name:UIKeyboardDidChangeFrameNotification object:nil];
+ }
+ if (shown) {
+ /* setting the text field as first responder brings up the onscreen keyboard */
+ [_sapp.ios.textfield becomeFirstResponder];
+ }
+ else {
+ [_sapp.ios.textfield resignFirstResponder];
+ }
+}
+
+@implementation _sapp_app_delegate
+- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {
+ CGRect screen_rect = UIScreen.mainScreen.bounds;
+ _sapp.ios.window = [[UIWindow alloc] initWithFrame:screen_rect];
+ _sapp.window_width = (int)roundf(screen_rect.size.width);
+ _sapp.window_height = (int)roundf(screen_rect.size.height);
+ if (_sapp.desc.high_dpi) {
+ _sapp.dpi_scale = (float) UIScreen.mainScreen.nativeScale;
+ }
+ else {
+ _sapp.dpi_scale = 1.0f;
+ }
+ _sapp.framebuffer_width = (int)roundf(_sapp.window_width * _sapp.dpi_scale);
+ _sapp.framebuffer_height = (int)roundf(_sapp.window_height * _sapp.dpi_scale);
+ NSInteger max_fps = UIScreen.mainScreen.maximumFramesPerSecond;
+ #if defined(SOKOL_METAL)
+ _sapp.ios.mtl_device = MTLCreateSystemDefaultDevice();
+ _sapp.ios.view = [[_sapp_ios_view alloc] init];
+ _sapp.ios.view.preferredFramesPerSecond = max_fps / _sapp.swap_interval;
+ _sapp.ios.view.device = _sapp.ios.mtl_device;
+ _sapp.ios.view.colorPixelFormat = MTLPixelFormatBGRA8Unorm;
+ _sapp.ios.view.depthStencilPixelFormat = MTLPixelFormatDepth32Float_Stencil8;
+ _sapp.ios.view.sampleCount = (NSUInteger)_sapp.sample_count;
+ /* NOTE: iOS MTKView seems to ignore thew view's contentScaleFactor
+ and automatically renders at Retina resolution. We'll disable
+ autoResize and instead do the resizing in _sapp_ios_update_dimensions()
+ */
+ _sapp.ios.view.autoResizeDrawable = false;
+ _sapp.ios.view.userInteractionEnabled = YES;
+ _sapp.ios.view.multipleTouchEnabled = YES;
+ _sapp.ios.view_ctrl = [[UIViewController alloc] init];
+ _sapp.ios.view_ctrl.modalPresentationStyle = UIModalPresentationFullScreen;
+ _sapp.ios.view_ctrl.view = _sapp.ios.view;
+ _sapp.ios.window.rootViewController = _sapp.ios.view_ctrl;
+ #else
+ _sapp.ios.eagl_ctx = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
+ _sapp.ios.view = [[_sapp_ios_view alloc] initWithFrame:screen_rect];
+ _sapp.ios.view.drawableColorFormat = GLKViewDrawableColorFormatRGBA8888;
+ _sapp.ios.view.drawableDepthFormat = GLKViewDrawableDepthFormat24;
+ _sapp.ios.view.drawableStencilFormat = GLKViewDrawableStencilFormatNone;
+ GLKViewDrawableMultisample msaa = _sapp.sample_count > 1 ? GLKViewDrawableMultisample4X : GLKViewDrawableMultisampleNone;
+ _sapp.ios.view.drawableMultisample = msaa;
+ _sapp.ios.view.context = _sapp.ios.eagl_ctx;
+ _sapp.ios.view.enableSetNeedsDisplay = NO;
+ _sapp.ios.view.userInteractionEnabled = YES;
+ _sapp.ios.view.multipleTouchEnabled = YES;
+ // on GLKView, contentScaleFactor appears to work just fine!
+ if (_sapp.desc.high_dpi) {
+ _sapp.ios.view.contentScaleFactor = _sapp.dpi_scale;
+ }
+ else {
+ _sapp.ios.view.contentScaleFactor = 1.0;
+ }
+ _sapp.ios.view_ctrl = [[GLKViewController alloc] init];
+ _sapp.ios.view_ctrl.view = _sapp.ios.view;
+ _sapp.ios.view_ctrl.preferredFramesPerSecond = max_fps / _sapp.swap_interval;
+ _sapp.ios.window.rootViewController = _sapp.ios.view_ctrl;
+ #endif
+ [_sapp.ios.window makeKeyAndVisible];
+
+ _sapp.valid = true;
+ return YES;
+}
+
+- (void)applicationWillResignActive:(UIApplication *)application {
+ if (!_sapp.ios.suspended) {
+ _sapp.ios.suspended = true;
+ _sapp_ios_app_event(SAPP_EVENTTYPE_SUSPENDED);
+ }
+}
+
+- (void)applicationDidBecomeActive:(UIApplication *)application {
+ if (_sapp.ios.suspended) {
+ _sapp.ios.suspended = false;
+ _sapp_ios_app_event(SAPP_EVENTTYPE_RESUMED);
+ }
+}
+
+/* NOTE: this method will rarely ever be called, iOS application
+ which are terminated by the user are usually killed via signal 9
+ by the operating system.
+*/
+- (void)applicationWillTerminate:(UIApplication *)application {
+ _SOKOL_UNUSED(application);
+ _sapp_call_cleanup();
+ _sapp_ios_discard_state();
+ _sapp_discard_state();
+}
+@end
+
+@implementation _sapp_textfield_dlg
+- (void)keyboardWasShown:(NSNotification*)notif {
+ _sapp.onscreen_keyboard_shown = true;
+ /* query the keyboard's size, and modify the content view's size */
+ if (_sapp.desc.ios_keyboard_resizes_canvas) {
+ NSDictionary* info = notif.userInfo;
+ CGFloat kbd_h = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size.height;
+ CGRect view_frame = UIScreen.mainScreen.bounds;
+ view_frame.size.height -= kbd_h;
+ _sapp.ios.view.frame = view_frame;
+ }
+}
+- (void)keyboardWillBeHidden:(NSNotification*)notif {
+ _sapp.onscreen_keyboard_shown = false;
+ if (_sapp.desc.ios_keyboard_resizes_canvas) {
+ _sapp.ios.view.frame = UIScreen.mainScreen.bounds;
+ }
+}
+- (void)keyboardDidChangeFrame:(NSNotification*)notif {
+ /* this is for the case when the screen rotation changes while the keyboard is open */
+ if (_sapp.onscreen_keyboard_shown && _sapp.desc.ios_keyboard_resizes_canvas) {
+ NSDictionary* info = notif.userInfo;
+ CGFloat kbd_h = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size.height;
+ CGRect view_frame = UIScreen.mainScreen.bounds;
+ view_frame.size.height -= kbd_h;
+ _sapp.ios.view.frame = view_frame;
+ }
+}
+- (BOOL)textField:(UITextField*)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString*)string {
+ if (_sapp_events_enabled()) {
+ const NSUInteger len = string.length;
+ if (len > 0) {
+ for (NSUInteger i = 0; i < len; i++) {
+ unichar c = [string characterAtIndex:i];
+ if (c >= 32) {
+ /* ignore surrogates for now */
+ if ((c < 0xD800) || (c > 0xDFFF)) {
+ _sapp_init_event(SAPP_EVENTTYPE_CHAR);
+ _sapp.event.char_code = c;
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+ if (c <= 32) {
+ sapp_keycode k = SAPP_KEYCODE_INVALID;
+ switch (c) {
+ case 10: k = SAPP_KEYCODE_ENTER; break;
+ case 32: k = SAPP_KEYCODE_SPACE; break;
+ default: break;
+ }
+ if (k != SAPP_KEYCODE_INVALID) {
+ _sapp_init_event(SAPP_EVENTTYPE_KEY_DOWN);
+ _sapp.event.key_code = k;
+ _sapp_call_event(&_sapp.event);
+ _sapp_init_event(SAPP_EVENTTYPE_KEY_UP);
+ _sapp.event.key_code = k;
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+ }
+ }
+ else {
+ /* this was a backspace */
+ _sapp_init_event(SAPP_EVENTTYPE_KEY_DOWN);
+ _sapp.event.key_code = SAPP_KEYCODE_BACKSPACE;
+ _sapp_call_event(&_sapp.event);
+ _sapp_init_event(SAPP_EVENTTYPE_KEY_UP);
+ _sapp.event.key_code = SAPP_KEYCODE_BACKSPACE;
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+ return NO;
+}
+@end
+
+@implementation _sapp_ios_view
+- (void)drawRect:(CGRect)rect {
+ _SOKOL_UNUSED(rect);
+ _sapp_timing_measure(&_sapp.timing);
+ @autoreleasepool {
+ _sapp_ios_frame();
+ }
+}
+- (BOOL)isOpaque {
+ return YES;
+}
+- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent*)event {
+ _sapp_ios_touch_event(SAPP_EVENTTYPE_TOUCHES_BEGAN, touches, event);
+}
+- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent*)event {
+ _sapp_ios_touch_event(SAPP_EVENTTYPE_TOUCHES_MOVED, touches, event);
+}
+- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent*)event {
+ _sapp_ios_touch_event(SAPP_EVENTTYPE_TOUCHES_ENDED, touches, event);
+}
+- (void)touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(UIEvent*)event {
+ _sapp_ios_touch_event(SAPP_EVENTTYPE_TOUCHES_CANCELLED, touches, event);
+}
+@end
+#endif /* TARGET_OS_IPHONE */
+
+#endif /* _SAPP_APPLE */
+
+// ███████ ███ ███ ███████ ██████ ██████ ██ ██████ ████████ ███████ ███ ██
+// ██ ████ ████ ██ ██ ██ ██ ██ ██ ██ ██ ██ ████ ██
+// █████ ██ ████ ██ ███████ ██ ██████ ██ ██████ ██ █████ ██ ██ ██
+// ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ███████ ██ ██ ███████ ██████ ██ ██ ██ ██ ██ ███████ ██ ████
+//
+// >>emscripten
+#if defined(_SAPP_EMSCRIPTEN)
+
+#if defined(EM_JS_DEPS)
+EM_JS_DEPS(sokol_app, "$withStackSave,$allocateUTF8OnStack");
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void (*_sapp_html5_fetch_callback) (const sapp_html5_fetch_response*);
+
+/* this function is called from a JS event handler when the user hides
+ the onscreen keyboard pressing the 'dismiss keyboard key'
+*/
+EMSCRIPTEN_KEEPALIVE void _sapp_emsc_notify_keyboard_hidden(void) {
+ _sapp.onscreen_keyboard_shown = false;
+}
+
+EMSCRIPTEN_KEEPALIVE void _sapp_emsc_onpaste(const char* str) {
+ if (_sapp.clipboard.enabled) {
+ _sapp_strcpy(str, _sapp.clipboard.buffer, _sapp.clipboard.buf_size);
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(SAPP_EVENTTYPE_CLIPBOARD_PASTED);
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+}
+
+/* https://developer.mozilla.org/en-US/docs/Web/API/WindowEventHandlers/onbeforeunload */
+EMSCRIPTEN_KEEPALIVE int _sapp_html5_get_ask_leave_site(void) {
+ return _sapp.html5_ask_leave_site ? 1 : 0;
+}
+
+EMSCRIPTEN_KEEPALIVE void _sapp_emsc_begin_drop(int num) {
+ if (!_sapp.drop.enabled) {
+ return;
+ }
+ if (num < 0) {
+ num = 0;
+ }
+ if (num > _sapp.drop.max_files) {
+ num = _sapp.drop.max_files;
+ }
+ _sapp.drop.num_files = num;
+ _sapp_clear_drop_buffer();
+}
+
+EMSCRIPTEN_KEEPALIVE void _sapp_emsc_drop(int i, const char* name) {
+ /* NOTE: name is only the filename part, not a path */
+ if (!_sapp.drop.enabled) {
+ return;
+ }
+ if (0 == name) {
+ return;
+ }
+ SOKOL_ASSERT(_sapp.drop.num_files <= _sapp.drop.max_files);
+ if ((i < 0) || (i >= _sapp.drop.num_files)) {
+ return;
+ }
+ if (!_sapp_strcpy(name, _sapp_dropped_file_path_ptr(i), _sapp.drop.max_path_length)) {
+ _SAPP_ERROR(DROPPED_FILE_PATH_TOO_LONG);
+ _sapp.drop.num_files = 0;
+ }
+}
+
+EMSCRIPTEN_KEEPALIVE void _sapp_emsc_end_drop(int x, int y, int mods) {
+ if (!_sapp.drop.enabled) {
+ return;
+ }
+ if (0 == _sapp.drop.num_files) {
+ /* there was an error copying the filenames */
+ _sapp_clear_drop_buffer();
+ return;
+
+ }
+ if (_sapp_events_enabled()) {
+ _sapp.mouse.x = (float)x * _sapp.dpi_scale;
+ _sapp.mouse.y = (float)y * _sapp.dpi_scale;
+ _sapp.mouse.dx = 0.0f;
+ _sapp.mouse.dy = 0.0f;
+ _sapp_init_event(SAPP_EVENTTYPE_FILES_DROPPED);
+ // see sapp_js_add_dragndrop_listeners for mods constants
+ if (mods & 1) { _sapp.event.modifiers |= SAPP_MODIFIER_SHIFT; }
+ if (mods & 2) { _sapp.event.modifiers |= SAPP_MODIFIER_CTRL; }
+ if (mods & 4) { _sapp.event.modifiers |= SAPP_MODIFIER_ALT; }
+ if (mods & 8) { _sapp.event.modifiers |= SAPP_MODIFIER_SUPER; }
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+EMSCRIPTEN_KEEPALIVE void _sapp_emsc_invoke_fetch_cb(int index, int success, int error_code, _sapp_html5_fetch_callback callback, uint32_t fetched_size, void* buf_ptr, uint32_t buf_size, void* user_data) {
+ sapp_html5_fetch_response response;
+ _sapp_clear(&response, sizeof(response));
+ response.succeeded = (0 != success);
+ response.error_code = (sapp_html5_fetch_error) error_code;
+ response.file_index = index;
+ response.data.ptr = buf_ptr;
+ response.data.size = fetched_size;
+ response.buffer.ptr = buf_ptr;
+ response.buffer.size = buf_size;
+ response.user_data = user_data;
+ callback(&response);
+}
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+/* Javascript helper functions for mobile virtual keyboard input */
+EM_JS(void, sapp_js_create_textfield, (void), {
+ const _sapp_inp = document.createElement("input");
+ _sapp_inp.type = "text";
+ _sapp_inp.id = "_sokol_app_input_element";
+ _sapp_inp.autocapitalize = "none";
+ _sapp_inp.addEventListener("focusout", function(_sapp_event) {
+ __sapp_emsc_notify_keyboard_hidden()
+
+ });
+ document.body.append(_sapp_inp);
+});
+
+EM_JS(void, sapp_js_focus_textfield, (void), {
+ document.getElementById("_sokol_app_input_element").focus();
+});
+
+EM_JS(void, sapp_js_unfocus_textfield, (void), {
+ document.getElementById("_sokol_app_input_element").blur();
+});
+
+EM_JS(void, sapp_js_add_beforeunload_listener, (void), {
+ Module.sokol_beforeunload = (event) => {
+ if (__sapp_html5_get_ask_leave_site() != 0) {
+ event.preventDefault();
+ event.returnValue = ' ';
+ }
+ };
+ window.addEventListener('beforeunload', Module.sokol_beforeunload);
+});
+
+EM_JS(void, sapp_js_remove_beforeunload_listener, (void), {
+ window.removeEventListener('beforeunload', Module.sokol_beforeunload);
+});
+
+EM_JS(void, sapp_js_add_clipboard_listener, (void), {
+ Module.sokol_paste = (event) => {
+ const pasted_str = event.clipboardData.getData('text');
+ withStackSave(() => {
+ const cstr = allocateUTF8OnStack(pasted_str);
+ __sapp_emsc_onpaste(cstr);
+ });
+ };
+ window.addEventListener('paste', Module.sokol_paste);
+});
+
+EM_JS(void, sapp_js_remove_clipboard_listener, (void), {
+ window.removeEventListener('paste', Module.sokol_paste);
+});
+
+EM_JS(void, sapp_js_write_clipboard, (const char* c_str), {
+ const str = UTF8ToString(c_str);
+ const ta = document.createElement('textarea');
+ ta.setAttribute('autocomplete', 'off');
+ ta.setAttribute('autocorrect', 'off');
+ ta.setAttribute('autocapitalize', 'off');
+ ta.setAttribute('spellcheck', 'false');
+ ta.style.left = -100 + 'px';
+ ta.style.top = -100 + 'px';
+ ta.style.height = 1;
+ ta.style.width = 1;
+ ta.value = str;
+ document.body.appendChild(ta);
+ ta.select();
+ document.execCommand('copy');
+ document.body.removeChild(ta);
+});
+
+_SOKOL_PRIVATE void _sapp_emsc_set_clipboard_string(const char* str) {
+ sapp_js_write_clipboard(str);
+}
+
+EM_JS(void, sapp_js_add_dragndrop_listeners, (const char* canvas_name_cstr), {
+ Module.sokol_drop_files = [];
+ const canvas_name = UTF8ToString(canvas_name_cstr);
+ const canvas = document.getElementById(canvas_name);
+ Module.sokol_dragenter = (event) => {
+ event.stopPropagation();
+ event.preventDefault();
+ };
+ Module.sokol_dragleave = (event) => {
+ event.stopPropagation();
+ event.preventDefault();
+ };
+ Module.sokol_dragover = (event) => {
+ event.stopPropagation();
+ event.preventDefault();
+ };
+ Module.sokol_drop = (event) => {
+ event.stopPropagation();
+ event.preventDefault();
+ const files = event.dataTransfer.files;
+ Module.sokol_dropped_files = files;
+ __sapp_emsc_begin_drop(files.length);
+ for (let i = 0; i < files.length; i++) {
+ withStackSave(() => {
+ const cstr = allocateUTF8OnStack(files[i].name);
+ __sapp_emsc_drop(i, cstr);
+ });
+ }
+ let mods = 0;
+ if (event.shiftKey) { mods |= 1; }
+ if (event.ctrlKey) { mods |= 2; }
+ if (event.altKey) { mods |= 4; }
+ if (event.metaKey) { mods |= 8; }
+ // FIXME? see computation of targetX/targetY in emscripten via getClientBoundingRect
+ __sapp_emsc_end_drop(event.clientX, event.clientY, mods);
+ };
+ canvas.addEventListener('dragenter', Module.sokol_dragenter, false);
+ canvas.addEventListener('dragleave', Module.sokol_dragleave, false);
+ canvas.addEventListener('dragover', Module.sokol_dragover, false);
+ canvas.addEventListener('drop', Module.sokol_drop, false);
+});
+
+EM_JS(uint32_t, sapp_js_dropped_file_size, (int index), {
+ \x2F\x2A\x2A @suppress {missingProperties} \x2A\x2F
+ const files = Module.sokol_dropped_files;
+ if ((index < 0) || (index >= files.length)) {
+ return 0;
+ }
+ else {
+ return files[index].size;
+ }
+});
+
+EM_JS(void, sapp_js_fetch_dropped_file, (int index, _sapp_html5_fetch_callback callback, void* buf_ptr, uint32_t buf_size, void* user_data), {
+ const reader = new FileReader();
+ reader.onload = (loadEvent) => {
+ const content = loadEvent.target.result;
+ if (content.byteLength > buf_size) {
+ // SAPP_HTML5_FETCH_ERROR_BUFFER_TOO_SMALL
+ __sapp_emsc_invoke_fetch_cb(index, 0, 1, callback, 0, buf_ptr, buf_size, user_data);
+ }
+ else {
+ HEAPU8.set(new Uint8Array(content), buf_ptr);
+ __sapp_emsc_invoke_fetch_cb(index, 1, 0, callback, content.byteLength, buf_ptr, buf_size, user_data);
+ }
+ };
+ reader.onerror = () => {
+ // SAPP_HTML5_FETCH_ERROR_OTHER
+ __sapp_emsc_invoke_fetch_cb(index, 0, 2, callback, 0, buf_ptr, buf_size, user_data);
+ };
+ \x2F\x2A\x2A @suppress {missingProperties} \x2A\x2F
+ const files = Module.sokol_dropped_files;
+ reader.readAsArrayBuffer(files[index]);
+});
+
+EM_JS(void, sapp_js_remove_dragndrop_listeners, (const char* canvas_name_cstr), {
+ const canvas_name = UTF8ToString(canvas_name_cstr);
+ const canvas = document.getElementById(canvas_name);
+ canvas.removeEventListener('dragenter', Module.sokol_dragenter);
+ canvas.removeEventListener('dragleave', Module.sokol_dragleave);
+ canvas.removeEventListener('dragover', Module.sokol_dragover);
+ canvas.removeEventListener('drop', Module.sokol_drop);
+});
+
+/* called from the emscripten event handler to update the keyboard visibility
+ state, this must happen from an JS input event handler, otherwise
+ the request will be ignored by the browser
+*/
+_SOKOL_PRIVATE void _sapp_emsc_update_keyboard_state(void) {
+ if (_sapp.emsc.wants_show_keyboard) {
+ /* create input text field on demand */
+ if (!_sapp.emsc.textfield_created) {
+ _sapp.emsc.textfield_created = true;
+ sapp_js_create_textfield();
+ }
+ /* focus the text input field, this will bring up the keyboard */
+ _sapp.onscreen_keyboard_shown = true;
+ _sapp.emsc.wants_show_keyboard = false;
+ sapp_js_focus_textfield();
+ }
+ if (_sapp.emsc.wants_hide_keyboard) {
+ /* unfocus the text input field */
+ if (_sapp.emsc.textfield_created) {
+ _sapp.onscreen_keyboard_shown = false;
+ _sapp.emsc.wants_hide_keyboard = false;
+ sapp_js_unfocus_textfield();
+ }
+ }
+}
+
+/* actually showing the onscreen keyboard must be initiated from a JS
+ input event handler, so we'll just keep track of the desired
+ state, and the actual state change will happen with the next input event
+*/
+_SOKOL_PRIVATE void _sapp_emsc_show_keyboard(bool show) {
+ if (show) {
+ _sapp.emsc.wants_show_keyboard = true;
+ }
+ else {
+ _sapp.emsc.wants_hide_keyboard = true;
+ }
+}
+
+EM_JS(void, sapp_js_init, (const char* c_str_target), {
+ // lookup and store canvas object by name
+ const target_str = UTF8ToString(c_str_target);
+ Module.sapp_emsc_target = document.getElementById(target_str);
+ if (!Module.sapp_emsc_target) {
+ console.log("sokol_app.h: invalid target:" + target_str);
+ }
+ if (!Module.sapp_emsc_target.requestPointerLock) {
+ console.log("sokol_app.h: target doesn't support requestPointerLock:" + target_str);
+ }
+});
+
+_SOKOL_PRIVATE EM_BOOL _sapp_emsc_pointerlockchange_cb(int emsc_type, const EmscriptenPointerlockChangeEvent* emsc_event, void* user_data) {
+ _SOKOL_UNUSED(emsc_type);
+ _SOKOL_UNUSED(user_data);
+ _sapp.mouse.locked = emsc_event->isActive;
+ return EM_TRUE;
+}
+
+_SOKOL_PRIVATE EM_BOOL _sapp_emsc_pointerlockerror_cb(int emsc_type, const void* reserved, void* user_data) {
+ _SOKOL_UNUSED(emsc_type);
+ _SOKOL_UNUSED(reserved);
+ _SOKOL_UNUSED(user_data);
+ _sapp.mouse.locked = false;
+ _sapp.emsc.mouse_lock_requested = false;
+ return true;
+}
+
+EM_JS(void, sapp_js_request_pointerlock, (void), {
+ if (Module.sapp_emsc_target) {
+ if (Module.sapp_emsc_target.requestPointerLock) {
+ Module.sapp_emsc_target.requestPointerLock();
+ }
+ }
+});
+
+EM_JS(void, sapp_js_exit_pointerlock, (void), {
+ if (document.exitPointerLock) {
+ document.exitPointerLock();
+ }
+});
+
+_SOKOL_PRIVATE void _sapp_emsc_lock_mouse(bool lock) {
+ if (lock) {
+ /* request mouse-lock during event handler invocation (see _sapp_emsc_update_mouse_lock_state) */
+ _sapp.emsc.mouse_lock_requested = true;
+ }
+ else {
+ /* NOTE: the _sapp.mouse_locked state will be set in the pointerlockchange callback */
+ _sapp.emsc.mouse_lock_requested = false;
+ sapp_js_exit_pointerlock();
+ }
+}
+
+/* called from inside event handlers to check if mouse lock had been requested,
+ and if yes, actually enter mouse lock.
+*/
+_SOKOL_PRIVATE void _sapp_emsc_update_mouse_lock_state(void) {
+ if (_sapp.emsc.mouse_lock_requested) {
+ _sapp.emsc.mouse_lock_requested = false;
+ sapp_js_request_pointerlock();
+ }
+}
+
+// set mouse cursor type
+EM_JS(void, sapp_js_set_cursor, (int cursor_type, int shown), {
+ if (Module.sapp_emsc_target) {
+ let cursor;
+ if (shown === 0) {
+ cursor = "none";
+ }
+ else switch (cursor_type) {
+ case 0: cursor = "auto"; break; // SAPP_MOUSECURSOR_DEFAULT
+ case 1: cursor = "default"; break; // SAPP_MOUSECURSOR_ARROW
+ case 2: cursor = "text"; break; // SAPP_MOUSECURSOR_IBEAM
+ case 3: cursor = "crosshair"; break; // SAPP_MOUSECURSOR_CROSSHAIR
+ case 4: cursor = "pointer"; break; // SAPP_MOUSECURSOR_POINTING_HAND
+ case 5: cursor = "ew-resize"; break; // SAPP_MOUSECURSOR_RESIZE_EW
+ case 6: cursor = "ns-resize"; break; // SAPP_MOUSECURSOR_RESIZE_NS
+ case 7: cursor = "nwse-resize"; break; // SAPP_MOUSECURSOR_RESIZE_NWSE
+ case 8: cursor = "nesw-resize"; break; // SAPP_MOUSECURSOR_RESIZE_NESW
+ case 9: cursor = "all-scroll"; break; // SAPP_MOUSECURSOR_RESIZE_ALL
+ case 10: cursor = "not-allowed"; break; // SAPP_MOUSECURSOR_NOT_ALLOWED
+ default: cursor = "auto"; break;
+ }
+ Module.sapp_emsc_target.style.cursor = cursor;
+ }
+});
+
+_SOKOL_PRIVATE void _sapp_emsc_update_cursor(sapp_mouse_cursor cursor, bool shown) {
+ SOKOL_ASSERT((cursor >= 0) && (cursor < _SAPP_MOUSECURSOR_NUM));
+ sapp_js_set_cursor((int)cursor, shown ? 1 : 0);
+}
+
+/* JS helper functions to update browser tab favicon */
+EM_JS(void, sapp_js_clear_favicon, (void), {
+ const link = document.getElementById('sokol-app-favicon');
+ if (link) {
+ document.head.removeChild(link);
+ }
+});
+
+EM_JS(void, sapp_js_set_favicon, (int w, int h, const uint8_t* pixels), {
+ const canvas = document.createElement('canvas');
+ canvas.width = w;
+ canvas.height = h;
+ const ctx = canvas.getContext('2d');
+ const img_data = ctx.createImageData(w, h);
+ img_data.data.set(HEAPU8.subarray(pixels, pixels + w*h*4));
+ ctx.putImageData(img_data, 0, 0);
+ const new_link = document.createElement('link');
+ new_link.id = 'sokol-app-favicon';
+ new_link.rel = 'shortcut icon';
+ new_link.href = canvas.toDataURL();
+ document.head.appendChild(new_link);
+});
+
+_SOKOL_PRIVATE void _sapp_emsc_set_icon(const sapp_icon_desc* icon_desc, int num_images) {
+ SOKOL_ASSERT((num_images > 0) && (num_images <= SAPP_MAX_ICONIMAGES));
+ sapp_js_clear_favicon();
+ // find the best matching image candidate for 16x16 pixels
+ int img_index = _sapp_image_bestmatch(icon_desc->images, num_images, 16, 16);
+ const sapp_image_desc* img_desc = &icon_desc->images[img_index];
+ sapp_js_set_favicon(img_desc->width, img_desc->height, (const uint8_t*) img_desc->pixels.ptr);
+}
+
+#if defined(SOKOL_WGPU)
+_SOKOL_PRIVATE void _sapp_emsc_wgpu_surfaces_create(void);
+_SOKOL_PRIVATE void _sapp_emsc_wgpu_surfaces_discard(void);
+#endif
+
+_SOKOL_PRIVATE uint32_t _sapp_emsc_mouse_button_mods(uint16_t buttons) {
+ uint32_t m = 0;
+ if (0 != (buttons & (1<<0))) { m |= SAPP_MODIFIER_LMB; }
+ if (0 != (buttons & (1<<1))) { m |= SAPP_MODIFIER_RMB; } // not a bug
+ if (0 != (buttons & (1<<2))) { m |= SAPP_MODIFIER_MMB; } // not a bug
+ return m;
+}
+
+_SOKOL_PRIVATE uint32_t _sapp_emsc_mouse_event_mods(const EmscriptenMouseEvent* ev) {
+ uint32_t m = 0;
+ if (ev->ctrlKey) { m |= SAPP_MODIFIER_CTRL; }
+ if (ev->shiftKey) { m |= SAPP_MODIFIER_SHIFT; }
+ if (ev->altKey) { m |= SAPP_MODIFIER_ALT; }
+ if (ev->metaKey) { m |= SAPP_MODIFIER_SUPER; }
+ m |= _sapp_emsc_mouse_button_mods(_sapp.emsc.mouse_buttons);
+ return m;
+}
+
+_SOKOL_PRIVATE uint32_t _sapp_emsc_key_event_mods(const EmscriptenKeyboardEvent* ev) {
+ uint32_t m = 0;
+ if (ev->ctrlKey) { m |= SAPP_MODIFIER_CTRL; }
+ if (ev->shiftKey) { m |= SAPP_MODIFIER_SHIFT; }
+ if (ev->altKey) { m |= SAPP_MODIFIER_ALT; }
+ if (ev->metaKey) { m |= SAPP_MODIFIER_SUPER; }
+ m |= _sapp_emsc_mouse_button_mods(_sapp.emsc.mouse_buttons);
+ return m;
+}
+
+_SOKOL_PRIVATE uint32_t _sapp_emsc_touch_event_mods(const EmscriptenTouchEvent* ev) {
+ uint32_t m = 0;
+ if (ev->ctrlKey) { m |= SAPP_MODIFIER_CTRL; }
+ if (ev->shiftKey) { m |= SAPP_MODIFIER_SHIFT; }
+ if (ev->altKey) { m |= SAPP_MODIFIER_ALT; }
+ if (ev->metaKey) { m |= SAPP_MODIFIER_SUPER; }
+ m |= _sapp_emsc_mouse_button_mods(_sapp.emsc.mouse_buttons);
+ return m;
+}
+
+_SOKOL_PRIVATE EM_BOOL _sapp_emsc_size_changed(int event_type, const EmscriptenUiEvent* ui_event, void* user_data) {
+ _SOKOL_UNUSED(event_type);
+ _SOKOL_UNUSED(user_data);
+ double w, h;
+ emscripten_get_element_css_size(_sapp.html5_canvas_selector, &w, &h);
+ /* The above method might report zero when toggling HTML5 fullscreen,
+ in that case use the window's inner width reported by the
+ emscripten event. This works ok when toggling *into* fullscreen
+ but doesn't properly restore the previous canvas size when switching
+ back from fullscreen.
+
+ In general, due to the HTML5's fullscreen API's flaky nature it is
+ recommended to use 'soft fullscreen' (stretching the WebGL canvas
+ over the browser windows client rect) with a CSS definition like this:
+
+ position: absolute;
+ top: 0px;
+ left: 0px;
+ margin: 0px;
+ border: 0;
+ width: 100%;
+ height: 100%;
+ overflow: hidden;
+ display: block;
+ */
+ if (w < 1.0) {
+ w = ui_event->windowInnerWidth;
+ }
+ else {
+ _sapp.window_width = (int)roundf(w);
+ }
+ if (h < 1.0) {
+ h = ui_event->windowInnerHeight;
+ }
+ else {
+ _sapp.window_height = (int)roundf(h);
+ }
+ if (_sapp.desc.high_dpi) {
+ _sapp.dpi_scale = emscripten_get_device_pixel_ratio();
+ }
+ _sapp.framebuffer_width = (int)roundf(w * _sapp.dpi_scale);
+ _sapp.framebuffer_height = (int)roundf(h * _sapp.dpi_scale);
+ SOKOL_ASSERT((_sapp.framebuffer_width > 0) && (_sapp.framebuffer_height > 0));
+ emscripten_set_canvas_element_size(_sapp.html5_canvas_selector, _sapp.framebuffer_width, _sapp.framebuffer_height);
+ #if defined(SOKOL_WGPU)
+ /* on WebGPU: recreate size-dependent rendering surfaces */
+ _sapp_emsc_wgpu_surfaces_discard();
+ _sapp_emsc_wgpu_surfaces_create();
+ #endif
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(SAPP_EVENTTYPE_RESIZED);
+ _sapp_call_event(&_sapp.event);
+ }
+ return true;
+}
+
+_SOKOL_PRIVATE EM_BOOL _sapp_emsc_mouse_cb(int emsc_type, const EmscriptenMouseEvent* emsc_event, void* user_data) {
+ _SOKOL_UNUSED(user_data);
+ _sapp.emsc.mouse_buttons = emsc_event->buttons;
+ if (_sapp.mouse.locked) {
+ _sapp.mouse.dx = (float) emsc_event->movementX;
+ _sapp.mouse.dy = (float) emsc_event->movementY;
+ } else {
+ float new_x = emsc_event->targetX * _sapp.dpi_scale;
+ float new_y = emsc_event->targetY * _sapp.dpi_scale;
+ if (_sapp.mouse.pos_valid) {
+ _sapp.mouse.dx = new_x - _sapp.mouse.x;
+ _sapp.mouse.dy = new_y - _sapp.mouse.y;
+ }
+ _sapp.mouse.x = new_x;
+ _sapp.mouse.y = new_y;
+ _sapp.mouse.pos_valid = true;
+ }
+ if (_sapp_events_enabled() && (emsc_event->button >= 0) && (emsc_event->button < SAPP_MAX_MOUSEBUTTONS)) {
+ sapp_event_type type;
+ bool is_button_event = false;
+ bool clear_dxdy = false;
+ switch (emsc_type) {
+ case EMSCRIPTEN_EVENT_MOUSEDOWN:
+ type = SAPP_EVENTTYPE_MOUSE_DOWN;
+ is_button_event = true;
+ break;
+ case EMSCRIPTEN_EVENT_MOUSEUP:
+ type = SAPP_EVENTTYPE_MOUSE_UP;
+ is_button_event = true;
+ break;
+ case EMSCRIPTEN_EVENT_MOUSEMOVE:
+ type = SAPP_EVENTTYPE_MOUSE_MOVE;
+ break;
+ case EMSCRIPTEN_EVENT_MOUSEENTER:
+ type = SAPP_EVENTTYPE_MOUSE_ENTER;
+ clear_dxdy = true;
+ break;
+ case EMSCRIPTEN_EVENT_MOUSELEAVE:
+ type = SAPP_EVENTTYPE_MOUSE_LEAVE;
+ clear_dxdy = true;
+ break;
+ default:
+ type = SAPP_EVENTTYPE_INVALID;
+ break;
+ }
+ if (clear_dxdy) {
+ _sapp.mouse.dx = 0.0f;
+ _sapp.mouse.dy = 0.0f;
+ }
+ if (type != SAPP_EVENTTYPE_INVALID) {
+ _sapp_init_event(type);
+ _sapp.event.modifiers = _sapp_emsc_mouse_event_mods(emsc_event);
+ if (is_button_event) {
+ switch (emsc_event->button) {
+ case 0: _sapp.event.mouse_button = SAPP_MOUSEBUTTON_LEFT; break;
+ case 1: _sapp.event.mouse_button = SAPP_MOUSEBUTTON_MIDDLE; break;
+ case 2: _sapp.event.mouse_button = SAPP_MOUSEBUTTON_RIGHT; break;
+ default: _sapp.event.mouse_button = (sapp_mousebutton)emsc_event->button; break;
+ }
+ } else {
+ _sapp.event.mouse_button = SAPP_MOUSEBUTTON_INVALID;
+ }
+ _sapp_call_event(&_sapp.event);
+ }
+ // mouse lock can only be activated in mouse button events (not in move, enter or leave)
+ if (is_button_event) {
+ _sapp_emsc_update_mouse_lock_state();
+ }
+ }
+ _sapp_emsc_update_keyboard_state();
+ return true;
+}
+
+_SOKOL_PRIVATE EM_BOOL _sapp_emsc_wheel_cb(int emsc_type, const EmscriptenWheelEvent* emsc_event, void* user_data) {
+ _SOKOL_UNUSED(emsc_type);
+ _SOKOL_UNUSED(user_data);
+ _sapp.emsc.mouse_buttons = emsc_event->mouse.buttons;
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(SAPP_EVENTTYPE_MOUSE_SCROLL);
+ _sapp.event.modifiers = _sapp_emsc_mouse_event_mods(&emsc_event->mouse);
+ /* see https://github.com/floooh/sokol/issues/339 */
+ float scale;
+ switch (emsc_event->deltaMode) {
+ case DOM_DELTA_PIXEL: scale = -0.04f; break;
+ case DOM_DELTA_LINE: scale = -1.33f; break;
+ case DOM_DELTA_PAGE: scale = -10.0f; break; // FIXME: this is a guess
+ default: scale = -0.1f; break; // shouldn't happen
+ }
+ _sapp.event.scroll_x = scale * (float)emsc_event->deltaX;
+ _sapp.event.scroll_y = scale * (float)emsc_event->deltaY;
+ _sapp_call_event(&_sapp.event);
+ }
+ _sapp_emsc_update_keyboard_state();
+ _sapp_emsc_update_mouse_lock_state();
+ return true;
+}
+
+static struct {
+ const char* str;
+ sapp_keycode code;
+} _sapp_emsc_keymap[] = {
+ { "Backspace", SAPP_KEYCODE_BACKSPACE },
+ { "Tab", SAPP_KEYCODE_TAB },
+ { "Enter", SAPP_KEYCODE_ENTER },
+ { "ShiftLeft", SAPP_KEYCODE_LEFT_SHIFT },
+ { "ShiftRight", SAPP_KEYCODE_RIGHT_SHIFT },
+ { "ControlLeft", SAPP_KEYCODE_LEFT_CONTROL },
+ { "ControlRight", SAPP_KEYCODE_RIGHT_CONTROL },
+ { "AltLeft", SAPP_KEYCODE_LEFT_ALT },
+ { "AltRight", SAPP_KEYCODE_RIGHT_ALT },
+ { "Pause", SAPP_KEYCODE_PAUSE },
+ { "CapsLock", SAPP_KEYCODE_CAPS_LOCK },
+ { "Escape", SAPP_KEYCODE_ESCAPE },
+ { "Space", SAPP_KEYCODE_SPACE },
+ { "PageUp", SAPP_KEYCODE_PAGE_UP },
+ { "PageDown", SAPP_KEYCODE_PAGE_DOWN },
+ { "End", SAPP_KEYCODE_END },
+ { "Home", SAPP_KEYCODE_HOME },
+ { "ArrowLeft", SAPP_KEYCODE_LEFT },
+ { "ArrowUp", SAPP_KEYCODE_UP },
+ { "ArrowRight", SAPP_KEYCODE_RIGHT },
+ { "ArrowDown", SAPP_KEYCODE_DOWN },
+ { "PrintScreen", SAPP_KEYCODE_PRINT_SCREEN },
+ { "Insert", SAPP_KEYCODE_INSERT },
+ { "Delete", SAPP_KEYCODE_DELETE },
+ { "Digit0", SAPP_KEYCODE_0 },
+ { "Digit1", SAPP_KEYCODE_1 },
+ { "Digit2", SAPP_KEYCODE_2 },
+ { "Digit3", SAPP_KEYCODE_3 },
+ { "Digit4", SAPP_KEYCODE_4 },
+ { "Digit5", SAPP_KEYCODE_5 },
+ { "Digit6", SAPP_KEYCODE_6 },
+ { "Digit7", SAPP_KEYCODE_7 },
+ { "Digit8", SAPP_KEYCODE_8 },
+ { "Digit9", SAPP_KEYCODE_9 },
+ { "KeyA", SAPP_KEYCODE_A },
+ { "KeyB", SAPP_KEYCODE_B },
+ { "KeyC", SAPP_KEYCODE_C },
+ { "KeyD", SAPP_KEYCODE_D },
+ { "KeyE", SAPP_KEYCODE_E },
+ { "KeyF", SAPP_KEYCODE_F },
+ { "KeyG", SAPP_KEYCODE_G },
+ { "KeyH", SAPP_KEYCODE_H },
+ { "KeyI", SAPP_KEYCODE_I },
+ { "KeyJ", SAPP_KEYCODE_J },
+ { "KeyK", SAPP_KEYCODE_K },
+ { "KeyL", SAPP_KEYCODE_L },
+ { "KeyM", SAPP_KEYCODE_M },
+ { "KeyN", SAPP_KEYCODE_N },
+ { "KeyO", SAPP_KEYCODE_O },
+ { "KeyP", SAPP_KEYCODE_P },
+ { "KeyQ", SAPP_KEYCODE_Q },
+ { "KeyR", SAPP_KEYCODE_R },
+ { "KeyS", SAPP_KEYCODE_S },
+ { "KeyT", SAPP_KEYCODE_T },
+ { "KeyU", SAPP_KEYCODE_U },
+ { "KeyV", SAPP_KEYCODE_V },
+ { "KeyW", SAPP_KEYCODE_W },
+ { "KeyX", SAPP_KEYCODE_X },
+ { "KeyY", SAPP_KEYCODE_Y },
+ { "KeyZ", SAPP_KEYCODE_Z },
+ { "MetaLeft", SAPP_KEYCODE_LEFT_SUPER },
+ { "MetaRight", SAPP_KEYCODE_RIGHT_SUPER },
+ { "Numpad0", SAPP_KEYCODE_KP_0 },
+ { "Numpad1", SAPP_KEYCODE_KP_1 },
+ { "Numpad2", SAPP_KEYCODE_KP_2 },
+ { "Numpad3", SAPP_KEYCODE_KP_3 },
+ { "Numpad4", SAPP_KEYCODE_KP_4 },
+ { "Numpad5", SAPP_KEYCODE_KP_5 },
+ { "Numpad6", SAPP_KEYCODE_KP_6 },
+ { "Numpad7", SAPP_KEYCODE_KP_7 },
+ { "Numpad8", SAPP_KEYCODE_KP_8 },
+ { "Numpad9", SAPP_KEYCODE_KP_9 },
+ { "NumpadMultiply", SAPP_KEYCODE_KP_MULTIPLY },
+ { "NumpadAdd", SAPP_KEYCODE_KP_ADD },
+ { "NumpadSubtract", SAPP_KEYCODE_KP_SUBTRACT },
+ { "NumpadDecimal", SAPP_KEYCODE_KP_DECIMAL },
+ { "NumpadDivide", SAPP_KEYCODE_KP_DIVIDE },
+ { "F1", SAPP_KEYCODE_F1 },
+ { "F2", SAPP_KEYCODE_F2 },
+ { "F3", SAPP_KEYCODE_F3 },
+ { "F4", SAPP_KEYCODE_F4 },
+ { "F5", SAPP_KEYCODE_F5 },
+ { "F6", SAPP_KEYCODE_F6 },
+ { "F7", SAPP_KEYCODE_F7 },
+ { "F8", SAPP_KEYCODE_F8 },
+ { "F9", SAPP_KEYCODE_F9 },
+ { "F10", SAPP_KEYCODE_F10 },
+ { "F11", SAPP_KEYCODE_F11 },
+ { "F12", SAPP_KEYCODE_F12 },
+ { "NumLock", SAPP_KEYCODE_NUM_LOCK },
+ { "ScrollLock", SAPP_KEYCODE_SCROLL_LOCK },
+ { "Semicolon", SAPP_KEYCODE_SEMICOLON },
+ { "Equal", SAPP_KEYCODE_EQUAL },
+ { "Comma", SAPP_KEYCODE_COMMA },
+ { "Minus", SAPP_KEYCODE_MINUS },
+ { "Period", SAPP_KEYCODE_PERIOD },
+ { "Slash", SAPP_KEYCODE_SLASH },
+ { "Backquote", SAPP_KEYCODE_GRAVE_ACCENT },
+ { "BracketLeft", SAPP_KEYCODE_LEFT_BRACKET },
+ { "Backslash", SAPP_KEYCODE_BACKSLASH },
+ { "BracketRight", SAPP_KEYCODE_RIGHT_BRACKET },
+ { "Quote", SAPP_KEYCODE_GRAVE_ACCENT }, // FIXME: ???
+ { 0, SAPP_KEYCODE_INVALID },
+};
+
+_SOKOL_PRIVATE sapp_keycode _sapp_emsc_translate_key(const char* str) {
+ int i = 0;
+ const char* keystr;
+ while (( keystr = _sapp_emsc_keymap[i].str )) {
+ if (0 == strcmp(str, keystr)) {
+ return _sapp_emsc_keymap[i].code;
+ }
+ i += 1;
+ }
+ return SAPP_KEYCODE_INVALID;
+}
+
+_SOKOL_PRIVATE EM_BOOL _sapp_emsc_key_cb(int emsc_type, const EmscriptenKeyboardEvent* emsc_event, void* user_data) {
+ _SOKOL_UNUSED(user_data);
+ bool retval = true;
+ if (_sapp_events_enabled()) {
+ sapp_event_type type;
+ switch (emsc_type) {
+ case EMSCRIPTEN_EVENT_KEYDOWN:
+ type = SAPP_EVENTTYPE_KEY_DOWN;
+ break;
+ case EMSCRIPTEN_EVENT_KEYUP:
+ type = SAPP_EVENTTYPE_KEY_UP;
+ break;
+ case EMSCRIPTEN_EVENT_KEYPRESS:
+ type = SAPP_EVENTTYPE_CHAR;
+ break;
+ default:
+ type = SAPP_EVENTTYPE_INVALID;
+ break;
+ }
+ if (type != SAPP_EVENTTYPE_INVALID) {
+ bool send_keyup_followup = false;
+ _sapp_init_event(type);
+ _sapp.event.key_repeat = emsc_event->repeat;
+ _sapp.event.modifiers = _sapp_emsc_key_event_mods(emsc_event);
+ if (type == SAPP_EVENTTYPE_CHAR) {
+ // FIXME: this doesn't appear to work on Android Chrome
+ _sapp.event.char_code = emsc_event->charCode;
+ /* workaround to make Cmd+V work on Safari */
+ if ((emsc_event->metaKey) && (emsc_event->charCode == 118)) {
+ retval = false;
+ }
+ }
+ else {
+ if (0 != emsc_event->code[0]) {
+ // This code path is for desktop browsers which send untranslated 'physical' key code strings
+ // (which is what we actually want for key events)
+ _sapp.event.key_code = _sapp_emsc_translate_key(emsc_event->code);
+ } else {
+ // This code path is for mobile browsers which only send localized key code
+ // strings. Note that the translation will only work for a small subset
+ // of localization-agnostic keys (like Enter, arrow keys, etc...), but
+ // regular alpha-numeric keys will all result in an SAPP_KEYCODE_INVALID)
+ _sapp.event.key_code = _sapp_emsc_translate_key(emsc_event->key);
+ }
+
+ /* Special hack for macOS: if the Super key is pressed, macOS doesn't
+ send keyUp events. As a workaround, to prevent keys from
+ "sticking", we'll send a keyup event following a keydown
+ when the SUPER key is pressed
+ */
+ if ((type == SAPP_EVENTTYPE_KEY_DOWN) &&
+ (_sapp.event.key_code != SAPP_KEYCODE_LEFT_SUPER) &&
+ (_sapp.event.key_code != SAPP_KEYCODE_RIGHT_SUPER) &&
+ (_sapp.event.modifiers & SAPP_MODIFIER_SUPER))
+ {
+ send_keyup_followup = true;
+ }
+ // only forward keys to the browser (can further be suppressed by sapp_consume_event())
+ switch (_sapp.event.key_code) {
+ case SAPP_KEYCODE_WORLD_1:
+ case SAPP_KEYCODE_WORLD_2:
+ case SAPP_KEYCODE_ESCAPE:
+ case SAPP_KEYCODE_ENTER:
+ case SAPP_KEYCODE_TAB:
+ case SAPP_KEYCODE_BACKSPACE:
+ case SAPP_KEYCODE_INSERT:
+ case SAPP_KEYCODE_DELETE:
+ case SAPP_KEYCODE_RIGHT:
+ case SAPP_KEYCODE_LEFT:
+ case SAPP_KEYCODE_DOWN:
+ case SAPP_KEYCODE_UP:
+ case SAPP_KEYCODE_PAGE_UP:
+ case SAPP_KEYCODE_PAGE_DOWN:
+ case SAPP_KEYCODE_HOME:
+ case SAPP_KEYCODE_END:
+ case SAPP_KEYCODE_CAPS_LOCK:
+ case SAPP_KEYCODE_SCROLL_LOCK:
+ case SAPP_KEYCODE_NUM_LOCK:
+ case SAPP_KEYCODE_PRINT_SCREEN:
+ case SAPP_KEYCODE_PAUSE:
+ case SAPP_KEYCODE_F1:
+ case SAPP_KEYCODE_F2:
+ case SAPP_KEYCODE_F3:
+ case SAPP_KEYCODE_F4:
+ case SAPP_KEYCODE_F5:
+ case SAPP_KEYCODE_F6:
+ case SAPP_KEYCODE_F7:
+ case SAPP_KEYCODE_F8:
+ case SAPP_KEYCODE_F9:
+ case SAPP_KEYCODE_F10:
+ case SAPP_KEYCODE_F11:
+ case SAPP_KEYCODE_F12:
+ case SAPP_KEYCODE_F13:
+ case SAPP_KEYCODE_F14:
+ case SAPP_KEYCODE_F15:
+ case SAPP_KEYCODE_F16:
+ case SAPP_KEYCODE_F17:
+ case SAPP_KEYCODE_F18:
+ case SAPP_KEYCODE_F19:
+ case SAPP_KEYCODE_F20:
+ case SAPP_KEYCODE_F21:
+ case SAPP_KEYCODE_F22:
+ case SAPP_KEYCODE_F23:
+ case SAPP_KEYCODE_F24:
+ case SAPP_KEYCODE_F25:
+ case SAPP_KEYCODE_LEFT_SHIFT:
+ case SAPP_KEYCODE_LEFT_CONTROL:
+ case SAPP_KEYCODE_LEFT_ALT:
+ case SAPP_KEYCODE_LEFT_SUPER:
+ case SAPP_KEYCODE_RIGHT_SHIFT:
+ case SAPP_KEYCODE_RIGHT_CONTROL:
+ case SAPP_KEYCODE_RIGHT_ALT:
+ case SAPP_KEYCODE_RIGHT_SUPER:
+ case SAPP_KEYCODE_MENU:
+ /* consume the event */
+ break;
+ default:
+ /* forward key to browser */
+ retval = false;
+ break;
+ }
+ }
+ if (_sapp_call_event(&_sapp.event)) {
+ // event was consumed via sapp_consume_event()
+ retval = true;
+ }
+ if (send_keyup_followup) {
+ _sapp.event.type = SAPP_EVENTTYPE_KEY_UP;
+ if (_sapp_call_event(&_sapp.event)) {
+ retval = true;
+ }
+ }
+ }
+ }
+ _sapp_emsc_update_keyboard_state();
+ _sapp_emsc_update_mouse_lock_state();
+ return retval;
+}
+
+_SOKOL_PRIVATE EM_BOOL _sapp_emsc_touch_cb(int emsc_type, const EmscriptenTouchEvent* emsc_event, void* user_data) {
+ _SOKOL_UNUSED(user_data);
+ bool retval = true;
+ if (_sapp_events_enabled()) {
+ sapp_event_type type;
+ switch (emsc_type) {
+ case EMSCRIPTEN_EVENT_TOUCHSTART:
+ type = SAPP_EVENTTYPE_TOUCHES_BEGAN;
+ break;
+ case EMSCRIPTEN_EVENT_TOUCHMOVE:
+ type = SAPP_EVENTTYPE_TOUCHES_MOVED;
+ break;
+ case EMSCRIPTEN_EVENT_TOUCHEND:
+ type = SAPP_EVENTTYPE_TOUCHES_ENDED;
+ break;
+ case EMSCRIPTEN_EVENT_TOUCHCANCEL:
+ type = SAPP_EVENTTYPE_TOUCHES_CANCELLED;
+ break;
+ default:
+ type = SAPP_EVENTTYPE_INVALID;
+ retval = false;
+ break;
+ }
+ if (type != SAPP_EVENTTYPE_INVALID) {
+ _sapp_init_event(type);
+ _sapp.event.modifiers = _sapp_emsc_touch_event_mods(emsc_event);
+ _sapp.event.num_touches = emsc_event->numTouches;
+ if (_sapp.event.num_touches > SAPP_MAX_TOUCHPOINTS) {
+ _sapp.event.num_touches = SAPP_MAX_TOUCHPOINTS;
+ }
+ for (int i = 0; i < _sapp.event.num_touches; i++) {
+ const EmscriptenTouchPoint* src = &emsc_event->touches[i];
+ sapp_touchpoint* dst = &_sapp.event.touches[i];
+ dst->identifier = (uintptr_t)src->identifier;
+ dst->pos_x = src->targetX * _sapp.dpi_scale;
+ dst->pos_y = src->targetY * _sapp.dpi_scale;
+ dst->changed = src->isChanged;
+ }
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+ _sapp_emsc_update_keyboard_state();
+ return retval;
+}
+
+_SOKOL_PRIVATE EM_BOOL _sapp_emsc_focus_cb(int emsc_type, const EmscriptenFocusEvent* emsc_event, void* user_data) {
+ _SOKOL_UNUSED(emsc_type);
+ _SOKOL_UNUSED(emsc_event);
+ _SOKOL_UNUSED(user_data);
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(SAPP_EVENTTYPE_FOCUSED);
+ _sapp_call_event(&_sapp.event);
+ }
+ return true;
+}
+
+_SOKOL_PRIVATE EM_BOOL _sapp_emsc_blur_cb(int emsc_type, const EmscriptenFocusEvent* emsc_event, void* user_data) {
+ _SOKOL_UNUSED(emsc_type);
+ _SOKOL_UNUSED(emsc_event);
+ _SOKOL_UNUSED(user_data);
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(SAPP_EVENTTYPE_UNFOCUSED);
+ _sapp_call_event(&_sapp.event);
+ }
+ return true;
+}
+
+#if defined(SOKOL_GLES3)
+_SOKOL_PRIVATE EM_BOOL _sapp_emsc_webgl_context_cb(int emsc_type, const void* reserved, void* user_data) {
+ _SOKOL_UNUSED(reserved);
+ _SOKOL_UNUSED(user_data);
+ sapp_event_type type;
+ switch (emsc_type) {
+ case EMSCRIPTEN_EVENT_WEBGLCONTEXTLOST: type = SAPP_EVENTTYPE_SUSPENDED; break;
+ case EMSCRIPTEN_EVENT_WEBGLCONTEXTRESTORED: type = SAPP_EVENTTYPE_RESUMED; break;
+ default: type = SAPP_EVENTTYPE_INVALID; break;
+ }
+ if (_sapp_events_enabled() && (SAPP_EVENTTYPE_INVALID != type)) {
+ _sapp_init_event(type);
+ _sapp_call_event(&_sapp.event);
+ }
+ return true;
+}
+
+_SOKOL_PRIVATE void _sapp_emsc_webgl_init(void) {
+ EmscriptenWebGLContextAttributes attrs;
+ emscripten_webgl_init_context_attributes(&attrs);
+ attrs.alpha = _sapp.desc.alpha;
+ attrs.depth = true;
+ attrs.stencil = true;
+ attrs.antialias = _sapp.sample_count > 1;
+ attrs.premultipliedAlpha = _sapp.desc.html5_premultiplied_alpha;
+ attrs.preserveDrawingBuffer = _sapp.desc.html5_preserve_drawing_buffer;
+ attrs.enableExtensionsByDefault = true;
+ attrs.majorVersion = 2;
+ EMSCRIPTEN_WEBGL_CONTEXT_HANDLE ctx = emscripten_webgl_create_context(_sapp.html5_canvas_selector, &attrs);
+ // FIXME: error message?
+ emscripten_webgl_make_context_current(ctx);
+
+ /* some WebGL extension are not enabled automatically by emscripten */
+ emscripten_webgl_enable_extension(ctx, "WEBKIT_WEBGL_compressed_texture_pvrtc");
+}
+#endif
+
+#if defined(SOKOL_WGPU)
+#define _SAPP_EMSC_WGPU_STATE_INITIAL (0)
+#define _SAPP_EMSC_WGPU_STATE_READY (1)
+#define _SAPP_EMSC_WGPU_STATE_RUNNING (2)
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+/* called when the asynchronous WebGPU device + swapchain init code in JS has finished */
+EMSCRIPTEN_KEEPALIVE void _sapp_emsc_wgpu_ready(int device_id, int swapchain_id, int swapchain_fmt) {
+ SOKOL_ASSERT(0 == _sapp.emsc.wgpu.device);
+ _sapp.emsc.wgpu.device = (WGPUDevice) device_id;
+ _sapp.emsc.wgpu.swapchain = (WGPUSwapChain) swapchain_id;
+ _sapp.emsc.wgpu.render_format = (WGPUTextureFormat) swapchain_fmt;
+ _sapp.emsc.wgpu.state = _SAPP_EMSC_WGPU_STATE_READY;
+}
+#if defined(__cplusplus)
+} // extern "C"
+#endif
+
+/* embedded JS function to handle all the asynchronous WebGPU setup */
+EM_JS(void, sapp_js_wgpu_init, (), {
+ WebGPU.initManagers();
+ // FIXME: the extension activation must be more clever here
+ navigator.gpu.requestAdapter().then((adapter) => {
+ console.log("wgpu adapter extensions: " + adapter.extensions);
+ adapter.requestDevice({ extensions: ["textureCompressionBC"]}).then((device) => {
+ var gpuContext = document.getElementById("canvas").getContext("gpupresent");
+ console.log("wgpu device extensions: " + adapter.extensions);
+ gpuContext.getSwapChainPreferredFormat(device).then((fmt) => {
+ const swapChainDescriptor = { device: device, format: fmt };
+ const swapChain = gpuContext.configureSwapChain(swapChainDescriptor);
+ const deviceId = WebGPU.mgrDevice.create(device);
+ const swapChainId = WebGPU.mgrSwapChain.create(swapChain);
+ const fmtId = WebGPU.TextureFormat.findIndex(function(elm) { return elm==fmt; });
+ console.log("wgpu device: " + device);
+ console.log("wgpu swap chain: " + swapChain);
+ console.log("wgpu preferred format: " + fmt + " (" + fmtId + ")");
+ __sapp_emsc_wgpu_ready(deviceId, swapChainId, fmtId);
+ });
+ });
+ });
+});
+
+_SOKOL_PRIVATE void _sapp_emsc_wgpu_surfaces_create(void) {
+ SOKOL_ASSERT(_sapp.emsc.wgpu.device);
+ SOKOL_ASSERT(_sapp.emsc.wgpu.swapchain);
+ SOKOL_ASSERT(0 == _sapp.emsc.wgpu.depth_stencil_tex);
+ SOKOL_ASSERT(0 == _sapp.emsc.wgpu.depth_stencil_view);
+ SOKOL_ASSERT(0 == _sapp.emsc.wgpu.msaa_tex);
+ SOKOL_ASSERT(0 == _sapp.emsc.wgpu.msaa_view);
+
+ WGPUTextureDescriptor ds_desc;
+ _sapp_clear(&ds_desc, sizeof(ds_desc));
+ ds_desc.usage = WGPUTextureUsage_OutputAttachment;
+ ds_desc.dimension = WGPUTextureDimension_2D;
+ ds_desc.size.width = (uint32_t) _sapp.framebuffer_width;
+ ds_desc.size.height = (uint32_t) _sapp.framebuffer_height;
+ ds_desc.size.depth = 1;
+ ds_desc.arrayLayerCount = 1;
+ ds_desc.format = WGPUTextureFormat_Depth24PlusStencil8;
+ ds_desc.mipLevelCount = 1;
+ ds_desc.sampleCount = _sapp.sample_count;
+ _sapp.emsc.wgpu.depth_stencil_tex = wgpuDeviceCreateTexture(_sapp.emsc.wgpu.device, &ds_desc);
+ _sapp.emsc.wgpu.depth_stencil_view = wgpuTextureCreateView(_sapp.emsc.wgpu.depth_stencil_tex, 0);
+
+ if (_sapp.sample_count > 1) {
+ WGPUTextureDescriptor msaa_desc;
+ _sapp_clear(&msaa_desc, sizeof(msaa_desc));
+ msaa_desc.usage = WGPUTextureUsage_OutputAttachment;
+ msaa_desc.dimension = WGPUTextureDimension_2D;
+ msaa_desc.size.width = (uint32_t) _sapp.framebuffer_width;
+ msaa_desc.size.height = (uint32_t) _sapp.framebuffer_height;
+ msaa_desc.size.depth = 1;
+ msaa_desc.arrayLayerCount = 1;
+ msaa_desc.format = _sapp.emsc.wgpu.render_format;
+ msaa_desc.mipLevelCount = 1;
+ msaa_desc.sampleCount = _sapp.sample_count;
+ _sapp.emsc.wgpu.msaa_tex = wgpuDeviceCreateTexture(_sapp.emsc.wgpu.device, &msaa_desc);
+ _sapp.emsc.wgpu.msaa_view = wgpuTextureCreateView(_sapp.emsc.wgpu.msaa_tex, 0);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_emsc_wgpu_surfaces_discard(void) {
+ if (_sapp.emsc.wgpu.msaa_tex) {
+ wgpuTextureRelease(_sapp.emsc.wgpu.msaa_tex);
+ _sapp.emsc.wgpu.msaa_tex = 0;
+ }
+ if (_sapp.emsc.wgpu.msaa_view) {
+ wgpuTextureViewRelease(_sapp.emsc.wgpu.msaa_view);
+ _sapp.emsc.wgpu.msaa_view = 0;
+ }
+ if (_sapp.emsc.wgpu.depth_stencil_tex) {
+ wgpuTextureRelease(_sapp.emsc.wgpu.depth_stencil_tex);
+ _sapp.emsc.wgpu.depth_stencil_tex = 0;
+ }
+ if (_sapp.emsc.wgpu.depth_stencil_view) {
+ wgpuTextureViewRelease(_sapp.emsc.wgpu.depth_stencil_view);
+ _sapp.emsc.wgpu.depth_stencil_view = 0;
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_emsc_wgpu_next_frame(void) {
+ if (_sapp.emsc.wgpu.swapchain_view) {
+ wgpuTextureViewRelease(_sapp.emsc.wgpu.swapchain_view);
+ }
+ _sapp.emsc.wgpu.swapchain_view = wgpuSwapChainGetCurrentTextureView(_sapp.emsc.wgpu.swapchain);
+}
+#endif
+
+_SOKOL_PRIVATE void _sapp_emsc_register_eventhandlers(void) {
+ emscripten_set_mousedown_callback(_sapp.html5_canvas_selector, 0, true, _sapp_emsc_mouse_cb);
+ emscripten_set_mouseup_callback(_sapp.html5_canvas_selector, 0, true, _sapp_emsc_mouse_cb);
+ emscripten_set_mousemove_callback(_sapp.html5_canvas_selector, 0, true, _sapp_emsc_mouse_cb);
+ emscripten_set_mouseenter_callback(_sapp.html5_canvas_selector, 0, true, _sapp_emsc_mouse_cb);
+ emscripten_set_mouseleave_callback(_sapp.html5_canvas_selector, 0, true, _sapp_emsc_mouse_cb);
+ emscripten_set_wheel_callback(_sapp.html5_canvas_selector, 0, true, _sapp_emsc_wheel_cb);
+ emscripten_set_keydown_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, 0, true, _sapp_emsc_key_cb);
+ emscripten_set_keyup_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, 0, true, _sapp_emsc_key_cb);
+ emscripten_set_keypress_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, 0, true, _sapp_emsc_key_cb);
+ emscripten_set_touchstart_callback(_sapp.html5_canvas_selector, 0, true, _sapp_emsc_touch_cb);
+ emscripten_set_touchmove_callback(_sapp.html5_canvas_selector, 0, true, _sapp_emsc_touch_cb);
+ emscripten_set_touchend_callback(_sapp.html5_canvas_selector, 0, true, _sapp_emsc_touch_cb);
+ emscripten_set_touchcancel_callback(_sapp.html5_canvas_selector, 0, true, _sapp_emsc_touch_cb);
+ emscripten_set_pointerlockchange_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, 0, true, _sapp_emsc_pointerlockchange_cb);
+ emscripten_set_pointerlockerror_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, 0, true, _sapp_emsc_pointerlockerror_cb);
+ emscripten_set_focus_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, 0, true, _sapp_emsc_focus_cb);
+ emscripten_set_blur_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, 0, true, _sapp_emsc_blur_cb);
+ sapp_js_add_beforeunload_listener();
+ if (_sapp.clipboard.enabled) {
+ sapp_js_add_clipboard_listener();
+ }
+ if (_sapp.drop.enabled) {
+ sapp_js_add_dragndrop_listeners(&_sapp.html5_canvas_selector[1]);
+ }
+ #if defined(SOKOL_GLES3)
+ emscripten_set_webglcontextlost_callback(_sapp.html5_canvas_selector, 0, true, _sapp_emsc_webgl_context_cb);
+ emscripten_set_webglcontextrestored_callback(_sapp.html5_canvas_selector, 0, true, _sapp_emsc_webgl_context_cb);
+ #endif
+}
+
+_SOKOL_PRIVATE void _sapp_emsc_unregister_eventhandlers() {
+ emscripten_set_mousedown_callback(_sapp.html5_canvas_selector, 0, true, 0);
+ emscripten_set_mouseup_callback(_sapp.html5_canvas_selector, 0, true, 0);
+ emscripten_set_mousemove_callback(_sapp.html5_canvas_selector, 0, true, 0);
+ emscripten_set_mouseenter_callback(_sapp.html5_canvas_selector, 0, true, 0);
+ emscripten_set_mouseleave_callback(_sapp.html5_canvas_selector, 0, true, 0);
+ emscripten_set_wheel_callback(_sapp.html5_canvas_selector, 0, true, 0);
+ emscripten_set_keydown_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, 0, true, 0);
+ emscripten_set_keyup_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, 0, true, 0);
+ emscripten_set_keypress_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, 0, true, 0);
+ emscripten_set_touchstart_callback(_sapp.html5_canvas_selector, 0, true, 0);
+ emscripten_set_touchmove_callback(_sapp.html5_canvas_selector, 0, true, 0);
+ emscripten_set_touchend_callback(_sapp.html5_canvas_selector, 0, true, 0);
+ emscripten_set_touchcancel_callback(_sapp.html5_canvas_selector, 0, true, 0);
+ emscripten_set_pointerlockchange_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, 0, true, 0);
+ emscripten_set_pointerlockerror_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, 0, true, 0);
+ emscripten_set_focus_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, 0, true, 0);
+ emscripten_set_blur_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, 0, true, 0);
+ sapp_js_remove_beforeunload_listener();
+ if (_sapp.clipboard.enabled) {
+ sapp_js_remove_clipboard_listener();
+ }
+ if (_sapp.drop.enabled) {
+ sapp_js_remove_dragndrop_listeners(&_sapp.html5_canvas_selector[1]);
+ }
+ #if defined(SOKOL_GLES3)
+ emscripten_set_webglcontextlost_callback(_sapp.html5_canvas_selector, 0, true, 0);
+ emscripten_set_webglcontextrestored_callback(_sapp.html5_canvas_selector, 0, true, 0);
+ #endif
+}
+
+_SOKOL_PRIVATE EM_BOOL _sapp_emsc_frame(double time, void* userData) {
+ _SOKOL_UNUSED(userData);
+ _sapp_timing_external(&_sapp.timing, time / 1000.0);
+
+ #if defined(SOKOL_WGPU)
+ /*
+ on WebGPU, the emscripten frame callback will already be called while
+ the asynchronous WebGPU device and swapchain initialization is still
+ in progress
+ */
+ switch (_sapp.emsc.wgpu.state) {
+ case _SAPP_EMSC_WGPU_STATE_INITIAL:
+ /* async JS init hasn't finished yet */
+ break;
+ case _SAPP_EMSC_WGPU_STATE_READY:
+ /* perform post-async init stuff */
+ _sapp_emsc_wgpu_surfaces_create();
+ _sapp.emsc.wgpu.state = _SAPP_EMSC_WGPU_STATE_RUNNING;
+ break;
+ case _SAPP_EMSC_WGPU_STATE_RUNNING:
+ /* a regular frame */
+ _sapp_emsc_wgpu_next_frame();
+ _sapp_frame();
+ break;
+ }
+ #else
+ /* WebGL code path */
+ _sapp_frame();
+ #endif
+
+ /* quit-handling */
+ if (_sapp.quit_requested) {
+ _sapp_init_event(SAPP_EVENTTYPE_QUIT_REQUESTED);
+ _sapp_call_event(&_sapp.event);
+ if (_sapp.quit_requested) {
+ _sapp.quit_ordered = true;
+ }
+ }
+ if (_sapp.quit_ordered) {
+ _sapp_emsc_unregister_eventhandlers();
+ _sapp_call_cleanup();
+ _sapp_discard_state();
+ return EM_FALSE;
+ }
+ return EM_TRUE;
+}
+
+_SOKOL_PRIVATE void _sapp_emsc_run(const sapp_desc* desc) {
+ _sapp_init_state(desc);
+ sapp_js_init(&_sapp.html5_canvas_selector[1]);
+ double w, h;
+ if (_sapp.desc.html5_canvas_resize) {
+ w = (double) _sapp_def(_sapp.desc.width, _SAPP_FALLBACK_DEFAULT_WINDOW_WIDTH);
+ h = (double) _sapp_def(_sapp.desc.height, _SAPP_FALLBACK_DEFAULT_WINDOW_HEIGHT);
+ }
+ else {
+ emscripten_get_element_css_size(_sapp.html5_canvas_selector, &w, &h);
+ emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, 0, false, _sapp_emsc_size_changed);
+ }
+ if (_sapp.desc.high_dpi) {
+ _sapp.dpi_scale = emscripten_get_device_pixel_ratio();
+ }
+ _sapp.window_width = (int)roundf(w);
+ _sapp.window_height = (int)roundf(h);
+ _sapp.framebuffer_width = (int)roundf(w * _sapp.dpi_scale);
+ _sapp.framebuffer_height = (int)roundf(h * _sapp.dpi_scale);
+ emscripten_set_canvas_element_size(_sapp.html5_canvas_selector, _sapp.framebuffer_width, _sapp.framebuffer_height);
+ #if defined(SOKOL_GLES3)
+ _sapp_emsc_webgl_init();
+ #elif defined(SOKOL_WGPU)
+ sapp_js_wgpu_init();
+ #endif
+ _sapp.valid = true;
+ _sapp_emsc_register_eventhandlers();
+ sapp_set_icon(&desc->icon);
+
+ /* start the frame loop */
+ emscripten_request_animation_frame_loop(_sapp_emsc_frame, 0);
+
+ /* NOT A BUG: do not call _sapp_discard_state() here, instead this is
+ called in _sapp_emsc_frame() when the application is ordered to quit
+ */
+}
+
+#if !defined(SOKOL_NO_ENTRY)
+int main(int argc, char* argv[]) {
+ sapp_desc desc = sokol_main(argc, argv);
+ _sapp_emsc_run(&desc);
+ return 0;
+}
+#endif /* SOKOL_NO_ENTRY */
+#endif /* _SAPP_EMSCRIPTEN */
+
+// ██████ ██ ██ ██ ███████ ██ ██████ ███████ ██████ ███████
+// ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ██ ███ ██ ███████ █████ ██ ██████ █████ ██████ ███████
+// ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ██████ ███████ ██ ██ ███████ ███████ ██ ███████ ██ ██ ███████
+//
+// >>gl helpers
+#if defined(SOKOL_GLCORE33)
+typedef struct {
+ int red_bits;
+ int green_bits;
+ int blue_bits;
+ int alpha_bits;
+ int depth_bits;
+ int stencil_bits;
+ int samples;
+ bool doublebuffer;
+ uintptr_t handle;
+} _sapp_gl_fbconfig;
+
+_SOKOL_PRIVATE void _sapp_gl_init_fbconfig(_sapp_gl_fbconfig* fbconfig) {
+ _sapp_clear(fbconfig, sizeof(_sapp_gl_fbconfig));
+ /* -1 means "don't care" */
+ fbconfig->red_bits = -1;
+ fbconfig->green_bits = -1;
+ fbconfig->blue_bits = -1;
+ fbconfig->alpha_bits = -1;
+ fbconfig->depth_bits = -1;
+ fbconfig->stencil_bits = -1;
+ fbconfig->samples = -1;
+}
+
+_SOKOL_PRIVATE const _sapp_gl_fbconfig* _sapp_gl_choose_fbconfig(const _sapp_gl_fbconfig* desired, const _sapp_gl_fbconfig* alternatives, int count) {
+ int missing, least_missing = 1000000;
+ int color_diff, least_color_diff = 10000000;
+ int extra_diff, least_extra_diff = 10000000;
+ const _sapp_gl_fbconfig* current;
+ const _sapp_gl_fbconfig* closest = 0;
+ for (int i = 0; i < count; i++) {
+ current = alternatives + i;
+ if (desired->doublebuffer != current->doublebuffer) {
+ continue;
+ }
+ missing = 0;
+ if (desired->alpha_bits > 0 && current->alpha_bits == 0) {
+ missing++;
+ }
+ if (desired->depth_bits > 0 && current->depth_bits == 0) {
+ missing++;
+ }
+ if (desired->stencil_bits > 0 && current->stencil_bits == 0) {
+ missing++;
+ }
+ if (desired->samples > 0 && current->samples == 0) {
+ /* Technically, several multisampling buffers could be
+ involved, but that's a lower level implementation detail and
+ not important to us here, so we count them as one
+ */
+ missing++;
+ }
+
+ /* These polynomials make many small channel size differences matter
+ less than one large channel size difference
+ Calculate color channel size difference value
+ */
+ color_diff = 0;
+ if (desired->red_bits != -1) {
+ color_diff += (desired->red_bits - current->red_bits) * (desired->red_bits - current->red_bits);
+ }
+ if (desired->green_bits != -1) {
+ color_diff += (desired->green_bits - current->green_bits) * (desired->green_bits - current->green_bits);
+ }
+ if (desired->blue_bits != -1) {
+ color_diff += (desired->blue_bits - current->blue_bits) * (desired->blue_bits - current->blue_bits);
+ }
+
+ /* Calculate non-color channel size difference value */
+ extra_diff = 0;
+ if (desired->alpha_bits != -1) {
+ extra_diff += (desired->alpha_bits - current->alpha_bits) * (desired->alpha_bits - current->alpha_bits);
+ }
+ if (desired->depth_bits != -1) {
+ extra_diff += (desired->depth_bits - current->depth_bits) * (desired->depth_bits - current->depth_bits);
+ }
+ if (desired->stencil_bits != -1) {
+ extra_diff += (desired->stencil_bits - current->stencil_bits) * (desired->stencil_bits - current->stencil_bits);
+ }
+ if (desired->samples != -1) {
+ extra_diff += (desired->samples - current->samples) * (desired->samples - current->samples);
+ }
+
+ /* Figure out if the current one is better than the best one found so far
+ Least number of missing buffers is the most important heuristic,
+ then color buffer size match and lastly size match for other buffers
+ */
+ if (missing < least_missing) {
+ closest = current;
+ }
+ else if (missing == least_missing) {
+ if ((color_diff < least_color_diff) ||
+ (color_diff == least_color_diff && extra_diff < least_extra_diff))
+ {
+ closest = current;
+ }
+ }
+ if (current == closest) {
+ least_missing = missing;
+ least_color_diff = color_diff;
+ least_extra_diff = extra_diff;
+ }
+ }
+ return closest;
+}
+#endif
+
+// ██ ██ ██ ███ ██ ██████ ██████ ██ ██ ███████
+// ██ ██ ██ ████ ██ ██ ██ ██ ██ ██ ██ ██
+// ██ █ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ █ ██ ███████
+// ██ ███ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ███ ██ ██
+// ███ ███ ██ ██ ████ ██████ ██████ ███ ███ ███████
+//
+// >>windows
+#if defined(_SAPP_WIN32)
+_SOKOL_PRIVATE bool _sapp_win32_utf8_to_wide(const char* src, wchar_t* dst, int dst_num_bytes) {
+ SOKOL_ASSERT(src && dst && (dst_num_bytes > 1));
+ _sapp_clear(dst, (size_t)dst_num_bytes);
+ const int dst_chars = dst_num_bytes / (int)sizeof(wchar_t);
+ const int dst_needed = MultiByteToWideChar(CP_UTF8, 0, src, -1, 0, 0);
+ if ((dst_needed > 0) && (dst_needed < dst_chars)) {
+ MultiByteToWideChar(CP_UTF8, 0, src, -1, dst, dst_chars);
+ return true;
+ }
+ else {
+ /* input string doesn't fit into destination buffer */
+ return false;
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_app_event(sapp_event_type type) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(type);
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_init_keytable(void) {
+ /* same as GLFW */
+ _sapp.keycodes[0x00B] = SAPP_KEYCODE_0;
+ _sapp.keycodes[0x002] = SAPP_KEYCODE_1;
+ _sapp.keycodes[0x003] = SAPP_KEYCODE_2;
+ _sapp.keycodes[0x004] = SAPP_KEYCODE_3;
+ _sapp.keycodes[0x005] = SAPP_KEYCODE_4;
+ _sapp.keycodes[0x006] = SAPP_KEYCODE_5;
+ _sapp.keycodes[0x007] = SAPP_KEYCODE_6;
+ _sapp.keycodes[0x008] = SAPP_KEYCODE_7;
+ _sapp.keycodes[0x009] = SAPP_KEYCODE_8;
+ _sapp.keycodes[0x00A] = SAPP_KEYCODE_9;
+ _sapp.keycodes[0x01E] = SAPP_KEYCODE_A;
+ _sapp.keycodes[0x030] = SAPP_KEYCODE_B;
+ _sapp.keycodes[0x02E] = SAPP_KEYCODE_C;
+ _sapp.keycodes[0x020] = SAPP_KEYCODE_D;
+ _sapp.keycodes[0x012] = SAPP_KEYCODE_E;
+ _sapp.keycodes[0x021] = SAPP_KEYCODE_F;
+ _sapp.keycodes[0x022] = SAPP_KEYCODE_G;
+ _sapp.keycodes[0x023] = SAPP_KEYCODE_H;
+ _sapp.keycodes[0x017] = SAPP_KEYCODE_I;
+ _sapp.keycodes[0x024] = SAPP_KEYCODE_J;
+ _sapp.keycodes[0x025] = SAPP_KEYCODE_K;
+ _sapp.keycodes[0x026] = SAPP_KEYCODE_L;
+ _sapp.keycodes[0x032] = SAPP_KEYCODE_M;
+ _sapp.keycodes[0x031] = SAPP_KEYCODE_N;
+ _sapp.keycodes[0x018] = SAPP_KEYCODE_O;
+ _sapp.keycodes[0x019] = SAPP_KEYCODE_P;
+ _sapp.keycodes[0x010] = SAPP_KEYCODE_Q;
+ _sapp.keycodes[0x013] = SAPP_KEYCODE_R;
+ _sapp.keycodes[0x01F] = SAPP_KEYCODE_S;
+ _sapp.keycodes[0x014] = SAPP_KEYCODE_T;
+ _sapp.keycodes[0x016] = SAPP_KEYCODE_U;
+ _sapp.keycodes[0x02F] = SAPP_KEYCODE_V;
+ _sapp.keycodes[0x011] = SAPP_KEYCODE_W;
+ _sapp.keycodes[0x02D] = SAPP_KEYCODE_X;
+ _sapp.keycodes[0x015] = SAPP_KEYCODE_Y;
+ _sapp.keycodes[0x02C] = SAPP_KEYCODE_Z;
+ _sapp.keycodes[0x028] = SAPP_KEYCODE_APOSTROPHE;
+ _sapp.keycodes[0x02B] = SAPP_KEYCODE_BACKSLASH;
+ _sapp.keycodes[0x033] = SAPP_KEYCODE_COMMA;
+ _sapp.keycodes[0x00D] = SAPP_KEYCODE_EQUAL;
+ _sapp.keycodes[0x029] = SAPP_KEYCODE_GRAVE_ACCENT;
+ _sapp.keycodes[0x01A] = SAPP_KEYCODE_LEFT_BRACKET;
+ _sapp.keycodes[0x00C] = SAPP_KEYCODE_MINUS;
+ _sapp.keycodes[0x034] = SAPP_KEYCODE_PERIOD;
+ _sapp.keycodes[0x01B] = SAPP_KEYCODE_RIGHT_BRACKET;
+ _sapp.keycodes[0x027] = SAPP_KEYCODE_SEMICOLON;
+ _sapp.keycodes[0x035] = SAPP_KEYCODE_SLASH;
+ _sapp.keycodes[0x056] = SAPP_KEYCODE_WORLD_2;
+ _sapp.keycodes[0x00E] = SAPP_KEYCODE_BACKSPACE;
+ _sapp.keycodes[0x153] = SAPP_KEYCODE_DELETE;
+ _sapp.keycodes[0x14F] = SAPP_KEYCODE_END;
+ _sapp.keycodes[0x01C] = SAPP_KEYCODE_ENTER;
+ _sapp.keycodes[0x001] = SAPP_KEYCODE_ESCAPE;
+ _sapp.keycodes[0x147] = SAPP_KEYCODE_HOME;
+ _sapp.keycodes[0x152] = SAPP_KEYCODE_INSERT;
+ _sapp.keycodes[0x15D] = SAPP_KEYCODE_MENU;
+ _sapp.keycodes[0x151] = SAPP_KEYCODE_PAGE_DOWN;
+ _sapp.keycodes[0x149] = SAPP_KEYCODE_PAGE_UP;
+ _sapp.keycodes[0x045] = SAPP_KEYCODE_PAUSE;
+ _sapp.keycodes[0x146] = SAPP_KEYCODE_PAUSE;
+ _sapp.keycodes[0x039] = SAPP_KEYCODE_SPACE;
+ _sapp.keycodes[0x00F] = SAPP_KEYCODE_TAB;
+ _sapp.keycodes[0x03A] = SAPP_KEYCODE_CAPS_LOCK;
+ _sapp.keycodes[0x145] = SAPP_KEYCODE_NUM_LOCK;
+ _sapp.keycodes[0x046] = SAPP_KEYCODE_SCROLL_LOCK;
+ _sapp.keycodes[0x03B] = SAPP_KEYCODE_F1;
+ _sapp.keycodes[0x03C] = SAPP_KEYCODE_F2;
+ _sapp.keycodes[0x03D] = SAPP_KEYCODE_F3;
+ _sapp.keycodes[0x03E] = SAPP_KEYCODE_F4;
+ _sapp.keycodes[0x03F] = SAPP_KEYCODE_F5;
+ _sapp.keycodes[0x040] = SAPP_KEYCODE_F6;
+ _sapp.keycodes[0x041] = SAPP_KEYCODE_F7;
+ _sapp.keycodes[0x042] = SAPP_KEYCODE_F8;
+ _sapp.keycodes[0x043] = SAPP_KEYCODE_F9;
+ _sapp.keycodes[0x044] = SAPP_KEYCODE_F10;
+ _sapp.keycodes[0x057] = SAPP_KEYCODE_F11;
+ _sapp.keycodes[0x058] = SAPP_KEYCODE_F12;
+ _sapp.keycodes[0x064] = SAPP_KEYCODE_F13;
+ _sapp.keycodes[0x065] = SAPP_KEYCODE_F14;
+ _sapp.keycodes[0x066] = SAPP_KEYCODE_F15;
+ _sapp.keycodes[0x067] = SAPP_KEYCODE_F16;
+ _sapp.keycodes[0x068] = SAPP_KEYCODE_F17;
+ _sapp.keycodes[0x069] = SAPP_KEYCODE_F18;
+ _sapp.keycodes[0x06A] = SAPP_KEYCODE_F19;
+ _sapp.keycodes[0x06B] = SAPP_KEYCODE_F20;
+ _sapp.keycodes[0x06C] = SAPP_KEYCODE_F21;
+ _sapp.keycodes[0x06D] = SAPP_KEYCODE_F22;
+ _sapp.keycodes[0x06E] = SAPP_KEYCODE_F23;
+ _sapp.keycodes[0x076] = SAPP_KEYCODE_F24;
+ _sapp.keycodes[0x038] = SAPP_KEYCODE_LEFT_ALT;
+ _sapp.keycodes[0x01D] = SAPP_KEYCODE_LEFT_CONTROL;
+ _sapp.keycodes[0x02A] = SAPP_KEYCODE_LEFT_SHIFT;
+ _sapp.keycodes[0x15B] = SAPP_KEYCODE_LEFT_SUPER;
+ _sapp.keycodes[0x137] = SAPP_KEYCODE_PRINT_SCREEN;
+ _sapp.keycodes[0x138] = SAPP_KEYCODE_RIGHT_ALT;
+ _sapp.keycodes[0x11D] = SAPP_KEYCODE_RIGHT_CONTROL;
+ _sapp.keycodes[0x036] = SAPP_KEYCODE_RIGHT_SHIFT;
+ _sapp.keycodes[0x15C] = SAPP_KEYCODE_RIGHT_SUPER;
+ _sapp.keycodes[0x150] = SAPP_KEYCODE_DOWN;
+ _sapp.keycodes[0x14B] = SAPP_KEYCODE_LEFT;
+ _sapp.keycodes[0x14D] = SAPP_KEYCODE_RIGHT;
+ _sapp.keycodes[0x148] = SAPP_KEYCODE_UP;
+ _sapp.keycodes[0x052] = SAPP_KEYCODE_KP_0;
+ _sapp.keycodes[0x04F] = SAPP_KEYCODE_KP_1;
+ _sapp.keycodes[0x050] = SAPP_KEYCODE_KP_2;
+ _sapp.keycodes[0x051] = SAPP_KEYCODE_KP_3;
+ _sapp.keycodes[0x04B] = SAPP_KEYCODE_KP_4;
+ _sapp.keycodes[0x04C] = SAPP_KEYCODE_KP_5;
+ _sapp.keycodes[0x04D] = SAPP_KEYCODE_KP_6;
+ _sapp.keycodes[0x047] = SAPP_KEYCODE_KP_7;
+ _sapp.keycodes[0x048] = SAPP_KEYCODE_KP_8;
+ _sapp.keycodes[0x049] = SAPP_KEYCODE_KP_9;
+ _sapp.keycodes[0x04E] = SAPP_KEYCODE_KP_ADD;
+ _sapp.keycodes[0x053] = SAPP_KEYCODE_KP_DECIMAL;
+ _sapp.keycodes[0x135] = SAPP_KEYCODE_KP_DIVIDE;
+ _sapp.keycodes[0x11C] = SAPP_KEYCODE_KP_ENTER;
+ _sapp.keycodes[0x037] = SAPP_KEYCODE_KP_MULTIPLY;
+ _sapp.keycodes[0x04A] = SAPP_KEYCODE_KP_SUBTRACT;
+}
+#endif // _SAPP_WIN32
+
+#if defined(_SAPP_WIN32)
+
+#if defined(SOKOL_D3D11)
+
+#if defined(__cplusplus)
+#define _sapp_d3d11_Release(self) (self)->Release()
+#define _sapp_win32_refiid(iid) iid
+#else
+#define _sapp_d3d11_Release(self) (self)->lpVtbl->Release(self)
+#define _sapp_win32_refiid(iid) &iid
+#endif
+
+#define _SAPP_SAFE_RELEASE(obj) if (obj) { _sapp_d3d11_Release(obj); obj=0; }
+
+
+static const IID _sapp_IID_ID3D11Texture2D = { 0x6f15aaf2,0xd208,0x4e89, {0x9a,0xb4,0x48,0x95,0x35,0xd3,0x4f,0x9c} };
+static const IID _sapp_IID_IDXGIDevice1 = { 0x77db970f,0x6276,0x48ba, {0xba,0x28,0x07,0x01,0x43,0xb4,0x39,0x2c} };
+static const IID _sapp_IID_IDXGIFactory = { 0x7b7166ec,0x21c7,0x44ae, {0xb2,0x1a,0xc9,0xae,0x32,0x1a,0xe3,0x69} };
+
+static inline HRESULT _sapp_dxgi_GetBuffer(IDXGISwapChain* self, UINT Buffer, REFIID riid, void** ppSurface) {
+ #if defined(__cplusplus)
+ return self->GetBuffer(Buffer, riid, ppSurface);
+ #else
+ return self->lpVtbl->GetBuffer(self, Buffer, riid, ppSurface);
+ #endif
+}
+
+static inline HRESULT _sapp_d3d11_QueryInterface(ID3D11Device* self, REFIID riid, void** ppvObject) {
+ #if defined(__cplusplus)
+ return self->QueryInterface(riid, ppvObject);
+ #else
+ return self->lpVtbl->QueryInterface(self, riid, ppvObject);
+ #endif
+}
+
+static inline HRESULT _sapp_d3d11_CreateRenderTargetView(ID3D11Device* self, ID3D11Resource *pResource, const D3D11_RENDER_TARGET_VIEW_DESC* pDesc, ID3D11RenderTargetView** ppRTView) {
+ #if defined(__cplusplus)
+ return self->CreateRenderTargetView(pResource, pDesc, ppRTView);
+ #else
+ return self->lpVtbl->CreateRenderTargetView(self, pResource, pDesc, ppRTView);
+ #endif
+}
+
+static inline HRESULT _sapp_d3d11_CreateTexture2D(ID3D11Device* self, const D3D11_TEXTURE2D_DESC* pDesc, const D3D11_SUBRESOURCE_DATA* pInitialData, ID3D11Texture2D** ppTexture2D) {
+ #if defined(__cplusplus)
+ return self->CreateTexture2D(pDesc, pInitialData, ppTexture2D);
+ #else
+ return self->lpVtbl->CreateTexture2D(self, pDesc, pInitialData, ppTexture2D);
+ #endif
+}
+
+static inline HRESULT _sapp_d3d11_CreateDepthStencilView(ID3D11Device* self, ID3D11Resource* pResource, const D3D11_DEPTH_STENCIL_VIEW_DESC* pDesc, ID3D11DepthStencilView** ppDepthStencilView) {
+ #if defined(__cplusplus)
+ return self->CreateDepthStencilView(pResource, pDesc, ppDepthStencilView);
+ #else
+ return self->lpVtbl->CreateDepthStencilView(self, pResource, pDesc, ppDepthStencilView);
+ #endif
+}
+
+static inline void _sapp_d3d11_ResolveSubresource(ID3D11DeviceContext* self, ID3D11Resource* pDstResource, UINT DstSubresource, ID3D11Resource* pSrcResource, UINT SrcSubresource, DXGI_FORMAT Format) {
+ #if defined(__cplusplus)
+ self->ResolveSubresource(pDstResource, DstSubresource, pSrcResource, SrcSubresource, Format);
+ #else
+ self->lpVtbl->ResolveSubresource(self, pDstResource, DstSubresource, pSrcResource, SrcSubresource, Format);
+ #endif
+}
+
+static inline HRESULT _sapp_dxgi_ResizeBuffers(IDXGISwapChain* self, UINT BufferCount, UINT Width, UINT Height, DXGI_FORMAT NewFormat, UINT SwapChainFlags) {
+ #if defined(__cplusplus)
+ return self->ResizeBuffers(BufferCount, Width, Height, NewFormat, SwapChainFlags);
+ #else
+ return self->lpVtbl->ResizeBuffers(self, BufferCount, Width, Height, NewFormat, SwapChainFlags);
+ #endif
+}
+
+static inline HRESULT _sapp_dxgi_Present(IDXGISwapChain* self, UINT SyncInterval, UINT Flags) {
+ #if defined(__cplusplus)
+ return self->Present(SyncInterval, Flags);
+ #else
+ return self->lpVtbl->Present(self, SyncInterval, Flags);
+ #endif
+}
+
+static inline HRESULT _sapp_dxgi_GetFrameStatistics(IDXGISwapChain* self, DXGI_FRAME_STATISTICS* pStats) {
+ #if defined(__cplusplus)
+ return self->GetFrameStatistics(pStats);
+ #else
+ return self->lpVtbl->GetFrameStatistics(self, pStats);
+ #endif
+}
+
+static inline HRESULT _sapp_dxgi_SetMaximumFrameLatency(IDXGIDevice1* self, UINT MaxLatency) {
+ #if defined(__cplusplus)
+ return self->SetMaximumFrameLatency(MaxLatency);
+ #else
+ return self->lpVtbl->SetMaximumFrameLatency(self, MaxLatency);
+ #endif
+}
+
+static inline HRESULT _sapp_dxgi_GetAdapter(IDXGIDevice1* self, IDXGIAdapter** pAdapter) {
+ #if defined(__cplusplus)
+ return self->GetAdapter(pAdapter);
+ #else
+ return self->lpVtbl->GetAdapter(self, pAdapter);
+ #endif
+}
+
+static inline HRESULT _sapp_dxgi_GetParent(IDXGIObject* self, REFIID riid, void** ppParent) {
+ #if defined(__cplusplus)
+ return self->GetParent(riid, ppParent);
+ #else
+ return self->lpVtbl->GetParent(self, riid, ppParent);
+ #endif
+}
+
+static inline HRESULT _sapp_dxgi_MakeWindowAssociation(IDXGIFactory* self, HWND WindowHandle, UINT Flags) {
+ #if defined(__cplusplus)
+ return self->MakeWindowAssociation(WindowHandle, Flags);
+ #else
+ return self->lpVtbl->MakeWindowAssociation(self, WindowHandle, Flags);
+ #endif
+}
+
+_SOKOL_PRIVATE void _sapp_d3d11_create_device_and_swapchain(void) {
+ DXGI_SWAP_CHAIN_DESC* sc_desc = &_sapp.d3d11.swap_chain_desc;
+ sc_desc->BufferDesc.Width = (UINT)_sapp.framebuffer_width;
+ sc_desc->BufferDesc.Height = (UINT)_sapp.framebuffer_height;
+ sc_desc->BufferDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
+ sc_desc->BufferDesc.RefreshRate.Numerator = 60;
+ sc_desc->BufferDesc.RefreshRate.Denominator = 1;
+ sc_desc->OutputWindow = _sapp.win32.hwnd;
+ sc_desc->Windowed = true;
+ if (_sapp.win32.is_win10_or_greater) {
+ sc_desc->BufferCount = 2;
+ sc_desc->SwapEffect = (DXGI_SWAP_EFFECT) _SAPP_DXGI_SWAP_EFFECT_FLIP_DISCARD;
+ _sapp.d3d11.use_dxgi_frame_stats = true;
+ }
+ else {
+ sc_desc->BufferCount = 1;
+ sc_desc->SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
+ _sapp.d3d11.use_dxgi_frame_stats = false;
+ }
+ sc_desc->SampleDesc.Count = 1;
+ sc_desc->SampleDesc.Quality = 0;
+ sc_desc->BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+ UINT create_flags = D3D11_CREATE_DEVICE_SINGLETHREADED | D3D11_CREATE_DEVICE_BGRA_SUPPORT;
+ #if defined(SOKOL_DEBUG)
+ create_flags |= D3D11_CREATE_DEVICE_DEBUG;
+ #endif
+ D3D_FEATURE_LEVEL feature_level;
+ HRESULT hr = D3D11CreateDeviceAndSwapChain(
+ NULL, /* pAdapter (use default) */
+ D3D_DRIVER_TYPE_HARDWARE, /* DriverType */
+ NULL, /* Software */
+ create_flags, /* Flags */
+ NULL, /* pFeatureLevels */
+ 0, /* FeatureLevels */
+ D3D11_SDK_VERSION, /* SDKVersion */
+ sc_desc, /* pSwapChainDesc */
+ &_sapp.d3d11.swap_chain, /* ppSwapChain */
+ &_sapp.d3d11.device, /* ppDevice */
+ &feature_level, /* pFeatureLevel */
+ &_sapp.d3d11.device_context); /* ppImmediateContext */
+ _SOKOL_UNUSED(hr);
+ #if defined(SOKOL_DEBUG)
+ if (!SUCCEEDED(hr)) {
+ // if initialization with D3D11_CREATE_DEVICE_DEBUG fails, this could be because the
+ // 'D3D11 debug layer' stopped working, indicated by the error message:
+ // ===
+ // D3D11CreateDevice: Flags (0x2) were specified which require the D3D11 SDK Layers for Windows 10, but they are not present on the system.
+ // These flags must be removed, or the Windows 10 SDK must be installed.
+ // Flags include: D3D11_CREATE_DEVICE_DEBUG
+ // ===
+ //
+ // ...just retry with the DEBUG flag switched off
+ _SAPP_ERROR(WIN32_D3D11_CREATE_DEVICE_AND_SWAPCHAIN_WITH_DEBUG_FAILED);
+ create_flags &= ~D3D11_CREATE_DEVICE_DEBUG;
+ hr = D3D11CreateDeviceAndSwapChain(
+ NULL, /* pAdapter (use default) */
+ D3D_DRIVER_TYPE_HARDWARE, /* DriverType */
+ NULL, /* Software */
+ create_flags, /* Flags */
+ NULL, /* pFeatureLevels */
+ 0, /* FeatureLevels */
+ D3D11_SDK_VERSION, /* SDKVersion */
+ sc_desc, /* pSwapChainDesc */
+ &_sapp.d3d11.swap_chain, /* ppSwapChain */
+ &_sapp.d3d11.device, /* ppDevice */
+ &feature_level, /* pFeatureLevel */
+ &_sapp.d3d11.device_context); /* ppImmediateContext */
+ }
+ #endif
+ SOKOL_ASSERT(SUCCEEDED(hr) && _sapp.d3d11.swap_chain && _sapp.d3d11.device && _sapp.d3d11.device_context);
+
+ // minimize frame latency, disable Alt-Enter
+ hr = _sapp_d3d11_QueryInterface(_sapp.d3d11.device, _sapp_win32_refiid(_sapp_IID_IDXGIDevice1), (void**)&_sapp.d3d11.dxgi_device);
+ if (SUCCEEDED(hr) && _sapp.d3d11.dxgi_device) {
+ _sapp_dxgi_SetMaximumFrameLatency(_sapp.d3d11.dxgi_device, 1);
+ IDXGIAdapter* dxgi_adapter = 0;
+ hr = _sapp_dxgi_GetAdapter(_sapp.d3d11.dxgi_device, &dxgi_adapter);
+ if (SUCCEEDED(hr) && dxgi_adapter) {
+ IDXGIFactory* dxgi_factory = 0;
+ hr = _sapp_dxgi_GetParent((IDXGIObject*)dxgi_adapter, _sapp_win32_refiid(_sapp_IID_IDXGIFactory), (void**)&dxgi_factory);
+ if (SUCCEEDED(hr)) {
+ _sapp_dxgi_MakeWindowAssociation(dxgi_factory, _sapp.win32.hwnd, DXGI_MWA_NO_ALT_ENTER|DXGI_MWA_NO_PRINT_SCREEN);
+ _SAPP_SAFE_RELEASE(dxgi_factory);
+ }
+ else {
+ _SAPP_ERROR(WIN32_D3D11_GET_IDXGIFACTORY_FAILED);
+ }
+ _SAPP_SAFE_RELEASE(dxgi_adapter);
+ }
+ else {
+ _SAPP_ERROR(WIN32_D3D11_GET_IDXGIADAPTER_FAILED);
+ }
+ }
+ else {
+ _SAPP_PANIC(WIN32_D3D11_QUERY_INTERFACE_IDXGIDEVICE1_FAILED);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_d3d11_destroy_device_and_swapchain(void) {
+ _SAPP_SAFE_RELEASE(_sapp.d3d11.swap_chain);
+ _SAPP_SAFE_RELEASE(_sapp.d3d11.dxgi_device);
+ _SAPP_SAFE_RELEASE(_sapp.d3d11.device_context);
+ _SAPP_SAFE_RELEASE(_sapp.d3d11.device);
+}
+
+_SOKOL_PRIVATE void _sapp_d3d11_create_default_render_target(void) {
+ SOKOL_ASSERT(0 == _sapp.d3d11.rt);
+ SOKOL_ASSERT(0 == _sapp.d3d11.rtv);
+ SOKOL_ASSERT(0 == _sapp.d3d11.msaa_rt);
+ SOKOL_ASSERT(0 == _sapp.d3d11.msaa_rtv);
+ SOKOL_ASSERT(0 == _sapp.d3d11.ds);
+ SOKOL_ASSERT(0 == _sapp.d3d11.dsv);
+
+ HRESULT hr;
+
+ /* view for the swapchain-created framebuffer */
+ hr = _sapp_dxgi_GetBuffer(_sapp.d3d11.swap_chain, 0, _sapp_win32_refiid(_sapp_IID_ID3D11Texture2D), (void**)&_sapp.d3d11.rt);
+ SOKOL_ASSERT(SUCCEEDED(hr) && _sapp.d3d11.rt);
+ hr = _sapp_d3d11_CreateRenderTargetView(_sapp.d3d11.device, (ID3D11Resource*)_sapp.d3d11.rt, NULL, &_sapp.d3d11.rtv);
+ SOKOL_ASSERT(SUCCEEDED(hr) && _sapp.d3d11.rtv);
+
+ /* common desc for MSAA and depth-stencil texture */
+ D3D11_TEXTURE2D_DESC tex_desc;
+ _sapp_clear(&tex_desc, sizeof(tex_desc));
+ tex_desc.Width = (UINT)_sapp.framebuffer_width;
+ tex_desc.Height = (UINT)_sapp.framebuffer_height;
+ tex_desc.MipLevels = 1;
+ tex_desc.ArraySize = 1;
+ tex_desc.Usage = D3D11_USAGE_DEFAULT;
+ tex_desc.BindFlags = D3D11_BIND_RENDER_TARGET;
+ tex_desc.SampleDesc.Count = (UINT) _sapp.sample_count;
+ tex_desc.SampleDesc.Quality = (UINT) (_sapp.sample_count > 1 ? D3D11_STANDARD_MULTISAMPLE_PATTERN : 0);
+
+ /* create MSAA texture and view if antialiasing requested */
+ if (_sapp.sample_count > 1) {
+ tex_desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
+ hr = _sapp_d3d11_CreateTexture2D(_sapp.d3d11.device, &tex_desc, NULL, &_sapp.d3d11.msaa_rt);
+ SOKOL_ASSERT(SUCCEEDED(hr) && _sapp.d3d11.msaa_rt);
+ hr = _sapp_d3d11_CreateRenderTargetView(_sapp.d3d11.device, (ID3D11Resource*)_sapp.d3d11.msaa_rt, NULL, &_sapp.d3d11.msaa_rtv);
+ SOKOL_ASSERT(SUCCEEDED(hr) && _sapp.d3d11.msaa_rtv);
+ }
+
+ /* texture and view for the depth-stencil-surface */
+ tex_desc.Format = DXGI_FORMAT_D24_UNORM_S8_UINT;
+ tex_desc.BindFlags = D3D11_BIND_DEPTH_STENCIL;
+ hr = _sapp_d3d11_CreateTexture2D(_sapp.d3d11.device, &tex_desc, NULL, &_sapp.d3d11.ds);
+ SOKOL_ASSERT(SUCCEEDED(hr) && _sapp.d3d11.ds);
+ hr = _sapp_d3d11_CreateDepthStencilView(_sapp.d3d11.device, (ID3D11Resource*)_sapp.d3d11.ds, NULL, &_sapp.d3d11.dsv);
+ SOKOL_ASSERT(SUCCEEDED(hr) && _sapp.d3d11.dsv);
+}
+
+_SOKOL_PRIVATE void _sapp_d3d11_destroy_default_render_target(void) {
+ _SAPP_SAFE_RELEASE(_sapp.d3d11.rt);
+ _SAPP_SAFE_RELEASE(_sapp.d3d11.rtv);
+ _SAPP_SAFE_RELEASE(_sapp.d3d11.msaa_rt);
+ _SAPP_SAFE_RELEASE(_sapp.d3d11.msaa_rtv);
+ _SAPP_SAFE_RELEASE(_sapp.d3d11.ds);
+ _SAPP_SAFE_RELEASE(_sapp.d3d11.dsv);
+}
+
+_SOKOL_PRIVATE void _sapp_d3d11_resize_default_render_target(void) {
+ if (_sapp.d3d11.swap_chain) {
+ _sapp_d3d11_destroy_default_render_target();
+ _sapp_dxgi_ResizeBuffers(_sapp.d3d11.swap_chain, _sapp.d3d11.swap_chain_desc.BufferCount, (UINT)_sapp.framebuffer_width, (UINT)_sapp.framebuffer_height, DXGI_FORMAT_B8G8R8A8_UNORM, 0);
+ _sapp_d3d11_create_default_render_target();
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_d3d11_present(bool do_not_wait) {
+ /* do MSAA resolve if needed */
+ if (_sapp.sample_count > 1) {
+ SOKOL_ASSERT(_sapp.d3d11.rt);
+ SOKOL_ASSERT(_sapp.d3d11.msaa_rt);
+ _sapp_d3d11_ResolveSubresource(_sapp.d3d11.device_context, (ID3D11Resource*)_sapp.d3d11.rt, 0, (ID3D11Resource*)_sapp.d3d11.msaa_rt, 0, DXGI_FORMAT_B8G8R8A8_UNORM);
+ }
+ UINT flags = 0;
+ if (_sapp.win32.is_win10_or_greater && do_not_wait) {
+ /* this hack/workaround somewhat improves window-movement and -sizing
+ responsiveness when rendering is controlled via WM_TIMER during window
+ move and resize on NVIDIA cards on Win10 with recent drivers.
+ */
+ flags = DXGI_PRESENT_DO_NOT_WAIT;
+ }
+ _sapp_dxgi_Present(_sapp.d3d11.swap_chain, (UINT)_sapp.swap_interval, flags);
+}
+
+#endif /* SOKOL_D3D11 */
+
+#if defined(SOKOL_GLCORE33)
+_SOKOL_PRIVATE void _sapp_wgl_init(void) {
+ _sapp.wgl.opengl32 = LoadLibraryA("opengl32.dll");
+ if (!_sapp.wgl.opengl32) {
+ _SAPP_PANIC(WIN32_LOAD_OPENGL32_DLL_FAILED);
+ }
+ SOKOL_ASSERT(_sapp.wgl.opengl32);
+ _sapp.wgl.CreateContext = (PFN_wglCreateContext)(void*) GetProcAddress(_sapp.wgl.opengl32, "wglCreateContext");
+ SOKOL_ASSERT(_sapp.wgl.CreateContext);
+ _sapp.wgl.DeleteContext = (PFN_wglDeleteContext)(void*) GetProcAddress(_sapp.wgl.opengl32, "wglDeleteContext");
+ SOKOL_ASSERT(_sapp.wgl.DeleteContext);
+ _sapp.wgl.GetProcAddress = (PFN_wglGetProcAddress)(void*) GetProcAddress(_sapp.wgl.opengl32, "wglGetProcAddress");
+ SOKOL_ASSERT(_sapp.wgl.GetProcAddress);
+ _sapp.wgl.GetCurrentDC = (PFN_wglGetCurrentDC)(void*) GetProcAddress(_sapp.wgl.opengl32, "wglGetCurrentDC");
+ SOKOL_ASSERT(_sapp.wgl.GetCurrentDC);
+ _sapp.wgl.MakeCurrent = (PFN_wglMakeCurrent)(void*) GetProcAddress(_sapp.wgl.opengl32, "wglMakeCurrent");
+ SOKOL_ASSERT(_sapp.wgl.MakeCurrent);
+
+ _sapp.wgl.msg_hwnd = CreateWindowExW(WS_EX_OVERLAPPEDWINDOW,
+ L"SOKOLAPP",
+ L"sokol-app message window",
+ WS_CLIPSIBLINGS|WS_CLIPCHILDREN,
+ 0, 0, 1, 1,
+ NULL, NULL,
+ GetModuleHandleW(NULL),
+ NULL);
+ if (!_sapp.wgl.msg_hwnd) {
+ _SAPP_PANIC(WIN32_CREATE_HELPER_WINDOW_FAILED);
+ }
+ SOKOL_ASSERT(_sapp.wgl.msg_hwnd);
+ ShowWindow(_sapp.wgl.msg_hwnd, SW_HIDE);
+ MSG msg;
+ while (PeekMessageW(&msg, _sapp.wgl.msg_hwnd, 0, 0, PM_REMOVE)) {
+ TranslateMessage(&msg);
+ DispatchMessageW(&msg);
+ }
+ _sapp.wgl.msg_dc = GetDC(_sapp.wgl.msg_hwnd);
+ if (!_sapp.wgl.msg_dc) {
+ _SAPP_PANIC(WIN32_HELPER_WINDOW_GETDC_FAILED);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_wgl_shutdown(void) {
+ SOKOL_ASSERT(_sapp.wgl.opengl32 && _sapp.wgl.msg_hwnd);
+ DestroyWindow(_sapp.wgl.msg_hwnd); _sapp.wgl.msg_hwnd = 0;
+ FreeLibrary(_sapp.wgl.opengl32); _sapp.wgl.opengl32 = 0;
+}
+
+_SOKOL_PRIVATE bool _sapp_wgl_has_ext(const char* ext, const char* extensions) {
+ SOKOL_ASSERT(ext && extensions);
+ const char* start = extensions;
+ while (true) {
+ const char* where = strstr(start, ext);
+ if (!where) {
+ return false;
+ }
+ const char* terminator = where + strlen(ext);
+ if ((where == start) || (*(where - 1) == ' ')) {
+ if (*terminator == ' ' || *terminator == '\0') {
+ break;
+ }
+ }
+ start = terminator;
+ }
+ return true;
+}
+
+_SOKOL_PRIVATE bool _sapp_wgl_ext_supported(const char* ext) {
+ SOKOL_ASSERT(ext);
+ if (_sapp.wgl.GetExtensionsStringEXT) {
+ const char* extensions = _sapp.wgl.GetExtensionsStringEXT();
+ if (extensions) {
+ if (_sapp_wgl_has_ext(ext, extensions)) {
+ return true;
+ }
+ }
+ }
+ if (_sapp.wgl.GetExtensionsStringARB) {
+ const char* extensions = _sapp.wgl.GetExtensionsStringARB(_sapp.wgl.GetCurrentDC());
+ if (extensions) {
+ if (_sapp_wgl_has_ext(ext, extensions)) {
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+_SOKOL_PRIVATE void _sapp_wgl_load_extensions(void) {
+ SOKOL_ASSERT(_sapp.wgl.msg_dc);
+ PIXELFORMATDESCRIPTOR pfd;
+ _sapp_clear(&pfd, sizeof(pfd));
+ pfd.nSize = sizeof(pfd);
+ pfd.nVersion = 1;
+ pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
+ pfd.iPixelType = PFD_TYPE_RGBA;
+ pfd.cColorBits = 24;
+ if (!SetPixelFormat(_sapp.wgl.msg_dc, ChoosePixelFormat(_sapp.wgl.msg_dc, &pfd), &pfd)) {
+ _SAPP_PANIC(WIN32_DUMMY_CONTEXT_SET_PIXELFORMAT_FAILED);
+ }
+ HGLRC rc = _sapp.wgl.CreateContext(_sapp.wgl.msg_dc);
+ if (!rc) {
+ _SAPP_PANIC(WIN32_CREATE_DUMMY_CONTEXT_FAILED);
+ }
+ if (!_sapp.wgl.MakeCurrent(_sapp.wgl.msg_dc, rc)) {
+ _SAPP_PANIC(WIN32_DUMMY_CONTEXT_MAKE_CURRENT_FAILED);
+ }
+ _sapp.wgl.GetExtensionsStringEXT = (PFNWGLGETEXTENSIONSSTRINGEXTPROC)(void*) _sapp.wgl.GetProcAddress("wglGetExtensionsStringEXT");
+ _sapp.wgl.GetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC)(void*) _sapp.wgl.GetProcAddress("wglGetExtensionsStringARB");
+ _sapp.wgl.CreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)(void*) _sapp.wgl.GetProcAddress("wglCreateContextAttribsARB");
+ _sapp.wgl.SwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)(void*) _sapp.wgl.GetProcAddress("wglSwapIntervalEXT");
+ _sapp.wgl.GetPixelFormatAttribivARB = (PFNWGLGETPIXELFORMATATTRIBIVARBPROC)(void*) _sapp.wgl.GetProcAddress("wglGetPixelFormatAttribivARB");
+ _sapp.wgl.arb_multisample = _sapp_wgl_ext_supported("WGL_ARB_multisample");
+ _sapp.wgl.arb_create_context = _sapp_wgl_ext_supported("WGL_ARB_create_context");
+ _sapp.wgl.arb_create_context_profile = _sapp_wgl_ext_supported("WGL_ARB_create_context_profile");
+ _sapp.wgl.ext_swap_control = _sapp_wgl_ext_supported("WGL_EXT_swap_control");
+ _sapp.wgl.arb_pixel_format = _sapp_wgl_ext_supported("WGL_ARB_pixel_format");
+ _sapp.wgl.MakeCurrent(_sapp.wgl.msg_dc, 0);
+ _sapp.wgl.DeleteContext(rc);
+}
+
+_SOKOL_PRIVATE int _sapp_wgl_attrib(int pixel_format, int attrib) {
+ SOKOL_ASSERT(_sapp.wgl.arb_pixel_format);
+ int value = 0;
+ if (!_sapp.wgl.GetPixelFormatAttribivARB(_sapp.win32.dc, pixel_format, 0, 1, &attrib, &value)) {
+ _SAPP_PANIC(WIN32_GET_PIXELFORMAT_ATTRIB_FAILED);
+ }
+ return value;
+}
+
+_SOKOL_PRIVATE int _sapp_wgl_find_pixel_format(void) {
+ SOKOL_ASSERT(_sapp.win32.dc);
+ SOKOL_ASSERT(_sapp.wgl.arb_pixel_format);
+ const _sapp_gl_fbconfig* closest;
+
+ int native_count = _sapp_wgl_attrib(1, WGL_NUMBER_PIXEL_FORMATS_ARB);
+ _sapp_gl_fbconfig* usable_configs = (_sapp_gl_fbconfig*) _sapp_malloc_clear((size_t)native_count * sizeof(_sapp_gl_fbconfig));
+ SOKOL_ASSERT(usable_configs);
+ int usable_count = 0;
+ for (int i = 0; i < native_count; i++) {
+ const int n = i + 1;
+ _sapp_gl_fbconfig* u = usable_configs + usable_count;
+ _sapp_gl_init_fbconfig(u);
+ if (!_sapp_wgl_attrib(n, WGL_SUPPORT_OPENGL_ARB) || !_sapp_wgl_attrib(n, WGL_DRAW_TO_WINDOW_ARB)) {
+ continue;
+ }
+ if (_sapp_wgl_attrib(n, WGL_PIXEL_TYPE_ARB) != WGL_TYPE_RGBA_ARB) {
+ continue;
+ }
+ if (_sapp_wgl_attrib(n, WGL_ACCELERATION_ARB) == WGL_NO_ACCELERATION_ARB) {
+ continue;
+ }
+ u->red_bits = _sapp_wgl_attrib(n, WGL_RED_BITS_ARB);
+ u->green_bits = _sapp_wgl_attrib(n, WGL_GREEN_BITS_ARB);
+ u->blue_bits = _sapp_wgl_attrib(n, WGL_BLUE_BITS_ARB);
+ u->alpha_bits = _sapp_wgl_attrib(n, WGL_ALPHA_BITS_ARB);
+ u->depth_bits = _sapp_wgl_attrib(n, WGL_DEPTH_BITS_ARB);
+ u->stencil_bits = _sapp_wgl_attrib(n, WGL_STENCIL_BITS_ARB);
+ if (_sapp_wgl_attrib(n, WGL_DOUBLE_BUFFER_ARB)) {
+ u->doublebuffer = true;
+ }
+ if (_sapp.wgl.arb_multisample) {
+ u->samples = _sapp_wgl_attrib(n, WGL_SAMPLES_ARB);
+ }
+ u->handle = (uintptr_t)n;
+ usable_count++;
+ }
+ SOKOL_ASSERT(usable_count > 0);
+ _sapp_gl_fbconfig desired;
+ _sapp_gl_init_fbconfig(&desired);
+ desired.red_bits = 8;
+ desired.green_bits = 8;
+ desired.blue_bits = 8;
+ desired.alpha_bits = 8;
+ desired.depth_bits = 24;
+ desired.stencil_bits = 8;
+ desired.doublebuffer = true;
+ desired.samples = _sapp.sample_count > 1 ? _sapp.sample_count : 0;
+ closest = _sapp_gl_choose_fbconfig(&desired, usable_configs, usable_count);
+ int pixel_format = 0;
+ if (closest) {
+ pixel_format = (int) closest->handle;
+ }
+ _sapp_free(usable_configs);
+ return pixel_format;
+}
+
+_SOKOL_PRIVATE void _sapp_wgl_create_context(void) {
+ int pixel_format = _sapp_wgl_find_pixel_format();
+ if (0 == pixel_format) {
+ _SAPP_PANIC(WIN32_WGL_FIND_PIXELFORMAT_FAILED);
+ }
+ PIXELFORMATDESCRIPTOR pfd;
+ if (!DescribePixelFormat(_sapp.win32.dc, pixel_format, sizeof(pfd), &pfd)) {
+ _SAPP_PANIC(WIN32_WGL_DESCRIBE_PIXELFORMAT_FAILED);
+ }
+ if (!SetPixelFormat(_sapp.win32.dc, pixel_format, &pfd)) {
+ _SAPP_PANIC(WIN32_WGL_SET_PIXELFORMAT_FAILED);
+ }
+ if (!_sapp.wgl.arb_create_context) {
+ _SAPP_PANIC(WIN32_WGL_ARB_CREATE_CONTEXT_REQUIRED);
+ }
+ if (!_sapp.wgl.arb_create_context_profile) {
+ _SAPP_PANIC(WIN32_WGL_ARB_CREATE_CONTEXT_PROFILE_REQUIRED);
+ }
+ const int attrs[] = {
+ WGL_CONTEXT_MAJOR_VERSION_ARB, _sapp.desc.gl_major_version,
+ WGL_CONTEXT_MINOR_VERSION_ARB, _sapp.desc.gl_minor_version,
+ WGL_CONTEXT_FLAGS_ARB, WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
+ WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
+ 0, 0
+ };
+ _sapp.wgl.gl_ctx = _sapp.wgl.CreateContextAttribsARB(_sapp.win32.dc, 0, attrs);
+ if (!_sapp.wgl.gl_ctx) {
+ const DWORD err = GetLastError();
+ if (err == (0xc0070000 | ERROR_INVALID_VERSION_ARB)) {
+ _SAPP_PANIC(WIN32_WGL_OPENGL_3_2_NOT_SUPPORTED);
+ }
+ else if (err == (0xc0070000 | ERROR_INVALID_PROFILE_ARB)) {
+ _SAPP_PANIC(WIN32_WGL_OPENGL_PROFILE_NOT_SUPPORTED);
+ }
+ else if (err == (0xc0070000 | ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB)) {
+ _SAPP_PANIC(WIN32_WGL_INCOMPATIBLE_DEVICE_CONTEXT);
+ }
+ else {
+ _SAPP_PANIC(WIN32_WGL_CREATE_CONTEXT_ATTRIBS_FAILED_OTHER);
+ }
+ }
+ _sapp.wgl.MakeCurrent(_sapp.win32.dc, _sapp.wgl.gl_ctx);
+ if (_sapp.wgl.ext_swap_control) {
+ /* FIXME: DwmIsCompositionEnabled() (see GLFW) */
+ _sapp.wgl.SwapIntervalEXT(_sapp.swap_interval);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_wgl_destroy_context(void) {
+ SOKOL_ASSERT(_sapp.wgl.gl_ctx);
+ _sapp.wgl.DeleteContext(_sapp.wgl.gl_ctx);
+ _sapp.wgl.gl_ctx = 0;
+}
+
+_SOKOL_PRIVATE void _sapp_wgl_swap_buffers(void) {
+ SOKOL_ASSERT(_sapp.win32.dc);
+ /* FIXME: DwmIsCompositionEnabled? (see GLFW) */
+ SwapBuffers(_sapp.win32.dc);
+}
+#endif /* SOKOL_GLCORE33 */
+
+_SOKOL_PRIVATE bool _sapp_win32_wide_to_utf8(const wchar_t* src, char* dst, int dst_num_bytes) {
+ SOKOL_ASSERT(src && dst && (dst_num_bytes > 1));
+ _sapp_clear(dst, (size_t)dst_num_bytes);
+ const int bytes_needed = WideCharToMultiByte(CP_UTF8, 0, src, -1, NULL, 0, NULL, NULL);
+ if (bytes_needed <= dst_num_bytes) {
+ WideCharToMultiByte(CP_UTF8, 0, src, -1, dst, dst_num_bytes, NULL, NULL);
+ return true;
+ }
+ else {
+ return false;
+ }
+}
+
+/* updates current window and framebuffer size from the window's client rect, returns true if size has changed */
+_SOKOL_PRIVATE bool _sapp_win32_update_dimensions(void) {
+ RECT rect;
+ if (GetClientRect(_sapp.win32.hwnd, &rect)) {
+ float window_width = (float)(rect.right - rect.left) / _sapp.win32.dpi.window_scale;
+ float window_height = (float)(rect.bottom - rect.top) / _sapp.win32.dpi.window_scale;
+ _sapp.window_width = (int)roundf(window_width);
+ _sapp.window_height = (int)roundf(window_height);
+ int fb_width = (int)roundf(window_width * _sapp.win32.dpi.content_scale);
+ int fb_height = (int)roundf(window_height * _sapp.win32.dpi.content_scale);
+ /* prevent a framebuffer size of 0 when window is minimized */
+ if (0 == fb_width) {
+ fb_width = 1;
+ }
+ if (0 == fb_height) {
+ fb_height = 1;
+ }
+ if ((fb_width != _sapp.framebuffer_width) || (fb_height != _sapp.framebuffer_height)) {
+ _sapp.framebuffer_width = fb_width;
+ _sapp.framebuffer_height = fb_height;
+ return true;
+ }
+ }
+ else {
+ _sapp.window_width = _sapp.window_height = 1;
+ _sapp.framebuffer_width = _sapp.framebuffer_height = 1;
+ }
+ return false;
+}
+
+_SOKOL_PRIVATE void _sapp_win32_set_fullscreen(bool fullscreen, UINT swp_flags) {
+ HMONITOR monitor = MonitorFromWindow(_sapp.win32.hwnd, MONITOR_DEFAULTTONEAREST);
+ MONITORINFO minfo;
+ _sapp_clear(&minfo, sizeof(minfo));
+ minfo.cbSize = sizeof(MONITORINFO);
+ GetMonitorInfo(monitor, &minfo);
+ const RECT mr = minfo.rcMonitor;
+ const int monitor_w = mr.right - mr.left;
+ const int monitor_h = mr.bottom - mr.top;
+
+ const DWORD win_ex_style = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
+ DWORD win_style;
+ RECT rect = { 0, 0, 0, 0 };
+
+ _sapp.fullscreen = fullscreen;
+ if (!_sapp.fullscreen) {
+ win_style = WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_SIZEBOX;
+ rect = _sapp.win32.stored_window_rect;
+ }
+ else {
+ GetWindowRect(_sapp.win32.hwnd, &_sapp.win32.stored_window_rect);
+ win_style = WS_POPUP | WS_SYSMENU | WS_VISIBLE;
+ rect.left = mr.left;
+ rect.top = mr.top;
+ rect.right = rect.left + monitor_w;
+ rect.bottom = rect.top + monitor_h;
+ AdjustWindowRectEx(&rect, win_style, FALSE, win_ex_style);
+ }
+ const int win_w = rect.right - rect.left;
+ const int win_h = rect.bottom - rect.top;
+ const int win_x = rect.left;
+ const int win_y = rect.top;
+ SetWindowLongPtr(_sapp.win32.hwnd, GWL_STYLE, win_style);
+ SetWindowPos(_sapp.win32.hwnd, HWND_TOP, win_x, win_y, win_w, win_h, swp_flags | SWP_FRAMECHANGED);
+}
+
+_SOKOL_PRIVATE void _sapp_win32_toggle_fullscreen(void) {
+ _sapp_win32_set_fullscreen(!_sapp.fullscreen, SWP_SHOWWINDOW);
+}
+
+_SOKOL_PRIVATE void _sapp_win32_init_cursor(sapp_mouse_cursor cursor) {
+ SOKOL_ASSERT((cursor >= 0) && (cursor < _SAPP_MOUSECURSOR_NUM));
+ // NOTE: the OCR_* constants are only defined if OEMRESOURCE is defined
+ // before windows.h is included, but we can't guarantee that because
+ // the sokol_app.h implementation may be included with other implementations
+ // in the same compilation unit
+ int id = 0;
+ switch (cursor) {
+ case SAPP_MOUSECURSOR_ARROW: id = 32512; break; // OCR_NORMAL
+ case SAPP_MOUSECURSOR_IBEAM: id = 32513; break; // OCR_IBEAM
+ case SAPP_MOUSECURSOR_CROSSHAIR: id = 32515; break; // OCR_CROSS
+ case SAPP_MOUSECURSOR_POINTING_HAND: id = 32649; break; // OCR_HAND
+ case SAPP_MOUSECURSOR_RESIZE_EW: id = 32644; break; // OCR_SIZEWE
+ case SAPP_MOUSECURSOR_RESIZE_NS: id = 32645; break; // OCR_SIZENS
+ case SAPP_MOUSECURSOR_RESIZE_NWSE: id = 32642; break; // OCR_SIZENWSE
+ case SAPP_MOUSECURSOR_RESIZE_NESW: id = 32643; break; // OCR_SIZENESW
+ case SAPP_MOUSECURSOR_RESIZE_ALL: id = 32646; break; // OCR_SIZEALL
+ case SAPP_MOUSECURSOR_NOT_ALLOWED: id = 32648; break; // OCR_NO
+ default: break;
+ }
+ if (id != 0) {
+ _sapp.win32.cursors[cursor] = (HCURSOR)LoadImageW(NULL, MAKEINTRESOURCEW(id), IMAGE_CURSOR, 0, 0, LR_DEFAULTSIZE|LR_SHARED);
+ }
+ // fallback: default cursor
+ if (0 == _sapp.win32.cursors[cursor]) {
+ // 32512 => IDC_ARROW
+ _sapp.win32.cursors[cursor] = LoadCursorW(NULL, MAKEINTRESOURCEW(32512));
+ }
+ SOKOL_ASSERT(0 != _sapp.win32.cursors[cursor]);
+}
+
+_SOKOL_PRIVATE void _sapp_win32_init_cursors(void) {
+ for (int i = 0; i < _SAPP_MOUSECURSOR_NUM; i++) {
+ _sapp_win32_init_cursor((sapp_mouse_cursor)i);
+ }
+}
+
+_SOKOL_PRIVATE bool _sapp_win32_cursor_in_content_area(void) {
+ POINT pos;
+ if (!GetCursorPos(&pos)) {
+ return false;
+ }
+ if (WindowFromPoint(pos) != _sapp.win32.hwnd) {
+ return false;
+ }
+ RECT area;
+ GetClientRect(_sapp.win32.hwnd, &area);
+ ClientToScreen(_sapp.win32.hwnd, (POINT*)&area.left);
+ ClientToScreen(_sapp.win32.hwnd, (POINT*)&area.right);
+ return PtInRect(&area, pos) == TRUE;
+}
+
+_SOKOL_PRIVATE void _sapp_win32_update_cursor(sapp_mouse_cursor cursor, bool shown, bool skip_area_test) {
+ // NOTE: when called from WM_SETCURSOR, the area test would be redundant
+ if (!skip_area_test) {
+ if (!_sapp_win32_cursor_in_content_area()) {
+ return;
+ }
+ }
+ if (!shown) {
+ SetCursor(NULL);
+ }
+ else {
+ SOKOL_ASSERT((cursor >= 0) && (cursor < _SAPP_MOUSECURSOR_NUM));
+ SOKOL_ASSERT(0 != _sapp.win32.cursors[cursor]);
+ SetCursor(_sapp.win32.cursors[cursor]);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_capture_mouse(uint8_t btn_mask) {
+ if (0 == _sapp.win32.mouse_capture_mask) {
+ SetCapture(_sapp.win32.hwnd);
+ }
+ _sapp.win32.mouse_capture_mask |= btn_mask;
+}
+
+_SOKOL_PRIVATE void _sapp_win32_release_mouse(uint8_t btn_mask) {
+ if (0 != _sapp.win32.mouse_capture_mask) {
+ _sapp.win32.mouse_capture_mask &= ~btn_mask;
+ if (0 == _sapp.win32.mouse_capture_mask) {
+ ReleaseCapture();
+ }
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_lock_mouse(bool lock) {
+ if (lock == _sapp.mouse.locked) {
+ return;
+ }
+ _sapp.mouse.dx = 0.0f;
+ _sapp.mouse.dy = 0.0f;
+ _sapp.mouse.locked = lock;
+ _sapp_win32_release_mouse(0xFF);
+ if (_sapp.mouse.locked) {
+ /* store the current mouse position, so it can be restored when unlocked */
+ POINT pos;
+ BOOL res = GetCursorPos(&pos);
+ SOKOL_ASSERT(res); _SOKOL_UNUSED(res);
+ _sapp.win32.mouse_locked_x = pos.x;
+ _sapp.win32.mouse_locked_y = pos.y;
+
+ /* while the mouse is locked, make the mouse cursor invisible and
+ confine the mouse movement to a small rectangle inside our window
+ (so that we don't miss any mouse up events)
+ */
+ RECT client_rect = {
+ _sapp.win32.mouse_locked_x,
+ _sapp.win32.mouse_locked_y,
+ _sapp.win32.mouse_locked_x,
+ _sapp.win32.mouse_locked_y
+ };
+ ClipCursor(&client_rect);
+
+ /* make the mouse cursor invisible, this will stack with sapp_show_mouse() */
+ ShowCursor(FALSE);
+
+ /* enable raw input for mouse, starts sending WM_INPUT messages to WinProc (see GLFW) */
+ const RAWINPUTDEVICE rid = {
+ 0x01, // usUsagePage: HID_USAGE_PAGE_GENERIC
+ 0x02, // usUsage: HID_USAGE_GENERIC_MOUSE
+ 0, // dwFlags
+ _sapp.win32.hwnd // hwndTarget
+ };
+ if (!RegisterRawInputDevices(&rid, 1, sizeof(rid))) {
+ _SAPP_ERROR(WIN32_REGISTER_RAW_INPUT_DEVICES_FAILED_MOUSE_LOCK);
+ }
+ /* in case the raw mouse device only supports absolute position reporting,
+ we need to skip the dx/dy compution for the first WM_INPUT event
+ */
+ _sapp.win32.raw_input_mousepos_valid = false;
+ }
+ else {
+ /* disable raw input for mouse */
+ const RAWINPUTDEVICE rid = { 0x01, 0x02, RIDEV_REMOVE, NULL };
+ if (!RegisterRawInputDevices(&rid, 1, sizeof(rid))) {
+ _SAPP_ERROR(WIN32_REGISTER_RAW_INPUT_DEVICES_FAILED_MOUSE_UNLOCK);
+ }
+
+ /* let the mouse roam freely again */
+ ClipCursor(NULL);
+ ShowCursor(TRUE);
+
+ /* restore the 'pre-locked' mouse position */
+ BOOL res = SetCursorPos(_sapp.win32.mouse_locked_x, _sapp.win32.mouse_locked_y);
+ SOKOL_ASSERT(res); _SOKOL_UNUSED(res);
+ }
+}
+
+_SOKOL_PRIVATE bool _sapp_win32_update_monitor(void) {
+ const HMONITOR cur_monitor = MonitorFromWindow(_sapp.win32.hwnd, MONITOR_DEFAULTTONULL);
+ if (cur_monitor != _sapp.win32.hmonitor) {
+ _sapp.win32.hmonitor = cur_monitor;
+ return true;
+ }
+ else {
+ return false;
+ }
+}
+
+_SOKOL_PRIVATE uint32_t _sapp_win32_mods(void) {
+ uint32_t mods = 0;
+ if (GetKeyState(VK_SHIFT) & (1<<15)) {
+ mods |= SAPP_MODIFIER_SHIFT;
+ }
+ if (GetKeyState(VK_CONTROL) & (1<<15)) {
+ mods |= SAPP_MODIFIER_CTRL;
+ }
+ if (GetKeyState(VK_MENU) & (1<<15)) {
+ mods |= SAPP_MODIFIER_ALT;
+ }
+ if ((GetKeyState(VK_LWIN) | GetKeyState(VK_RWIN)) & (1<<15)) {
+ mods |= SAPP_MODIFIER_SUPER;
+ }
+ const bool swapped = (TRUE == GetSystemMetrics(SM_SWAPBUTTON));
+ if (GetAsyncKeyState(VK_LBUTTON)) {
+ mods |= swapped ? SAPP_MODIFIER_RMB : SAPP_MODIFIER_LMB;
+ }
+ if (GetAsyncKeyState(VK_RBUTTON)) {
+ mods |= swapped ? SAPP_MODIFIER_LMB : SAPP_MODIFIER_RMB;
+ }
+ if (GetAsyncKeyState(VK_MBUTTON)) {
+ mods |= SAPP_MODIFIER_MMB;
+ }
+ return mods;
+}
+
+_SOKOL_PRIVATE void _sapp_win32_mouse_update(LPARAM lParam) {
+ if (!_sapp.mouse.locked) {
+ const float new_x = (float)GET_X_LPARAM(lParam) * _sapp.win32.dpi.mouse_scale;
+ const float new_y = (float)GET_Y_LPARAM(lParam) * _sapp.win32.dpi.mouse_scale;
+ if (_sapp.mouse.pos_valid) {
+ // don't update dx/dy in the very first event
+ _sapp.mouse.dx = new_x - _sapp.mouse.x;
+ _sapp.mouse.dy = new_y - _sapp.mouse.y;
+ }
+ _sapp.mouse.x = new_x;
+ _sapp.mouse.y = new_y;
+ _sapp.mouse.pos_valid = true;
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_mouse_event(sapp_event_type type, sapp_mousebutton btn) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(type);
+ _sapp.event.modifiers = _sapp_win32_mods();
+ _sapp.event.mouse_button = btn;
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_scroll_event(float x, float y) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(SAPP_EVENTTYPE_MOUSE_SCROLL);
+ _sapp.event.modifiers = _sapp_win32_mods();
+ _sapp.event.scroll_x = -x / 30.0f;
+ _sapp.event.scroll_y = y / 30.0f;
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_key_event(sapp_event_type type, int vk, bool repeat) {
+ if (_sapp_events_enabled() && (vk < SAPP_MAX_KEYCODES)) {
+ _sapp_init_event(type);
+ _sapp.event.modifiers = _sapp_win32_mods();
+ _sapp.event.key_code = _sapp.keycodes[vk];
+ _sapp.event.key_repeat = repeat;
+ _sapp_call_event(&_sapp.event);
+ /* check if a CLIPBOARD_PASTED event must be sent too */
+ if (_sapp.clipboard.enabled &&
+ (type == SAPP_EVENTTYPE_KEY_DOWN) &&
+ (_sapp.event.modifiers == SAPP_MODIFIER_CTRL) &&
+ (_sapp.event.key_code == SAPP_KEYCODE_V))
+ {
+ _sapp_init_event(SAPP_EVENTTYPE_CLIPBOARD_PASTED);
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_char_event(uint32_t c, bool repeat) {
+ if (_sapp_events_enabled() && (c >= 32)) {
+ _sapp_init_event(SAPP_EVENTTYPE_CHAR);
+ _sapp.event.modifiers = _sapp_win32_mods();
+ _sapp.event.char_code = c;
+ _sapp.event.key_repeat = repeat;
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_dpi_changed(HWND hWnd, LPRECT proposed_win_rect) {
+ /* called on WM_DPICHANGED, which will only be sent to the application
+ if sapp_desc.high_dpi is true and the Windows version is recent enough
+ to support DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2
+ */
+ SOKOL_ASSERT(_sapp.desc.high_dpi);
+ HINSTANCE user32 = LoadLibraryA("user32.dll");
+ if (!user32) {
+ return;
+ }
+ typedef UINT(WINAPI * GETDPIFORWINDOW_T)(HWND hwnd);
+ GETDPIFORWINDOW_T fn_getdpiforwindow = (GETDPIFORWINDOW_T)(void*)GetProcAddress(user32, "GetDpiForWindow");
+ if (fn_getdpiforwindow) {
+ UINT dpix = fn_getdpiforwindow(_sapp.win32.hwnd);
+ // NOTE: for high-dpi apps, mouse_scale remains one
+ _sapp.win32.dpi.window_scale = (float)dpix / 96.0f;
+ _sapp.win32.dpi.content_scale = _sapp.win32.dpi.window_scale;
+ _sapp.dpi_scale = _sapp.win32.dpi.window_scale;
+ SetWindowPos(hWnd, 0,
+ proposed_win_rect->left,
+ proposed_win_rect->top,
+ proposed_win_rect->right - proposed_win_rect->left,
+ proposed_win_rect->bottom - proposed_win_rect->top,
+ SWP_NOZORDER | SWP_NOACTIVATE);
+ }
+ FreeLibrary(user32);
+}
+
+_SOKOL_PRIVATE void _sapp_win32_files_dropped(HDROP hdrop) {
+ if (!_sapp.drop.enabled) {
+ return;
+ }
+ _sapp_clear_drop_buffer();
+ bool drop_failed = false;
+ const int count = (int) DragQueryFileW(hdrop, 0xffffffff, NULL, 0);
+ _sapp.drop.num_files = (count > _sapp.drop.max_files) ? _sapp.drop.max_files : count;
+ for (UINT i = 0; i < (UINT)_sapp.drop.num_files; i++) {
+ const UINT num_chars = DragQueryFileW(hdrop, i, NULL, 0) + 1;
+ WCHAR* buffer = (WCHAR*) _sapp_malloc_clear(num_chars * sizeof(WCHAR));
+ DragQueryFileW(hdrop, i, buffer, num_chars);
+ if (!_sapp_win32_wide_to_utf8(buffer, _sapp_dropped_file_path_ptr((int)i), _sapp.drop.max_path_length)) {
+ _SAPP_ERROR(DROPPED_FILE_PATH_TOO_LONG);
+ drop_failed = true;
+ }
+ _sapp_free(buffer);
+ }
+ DragFinish(hdrop);
+ if (!drop_failed) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(SAPP_EVENTTYPE_FILES_DROPPED);
+ _sapp.event.modifiers = _sapp_win32_mods();
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+ else {
+ _sapp_clear_drop_buffer();
+ _sapp.drop.num_files = 0;
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_timing_measure(void) {
+ #if defined(SOKOL_D3D11)
+ // on D3D11, use the more precise DXGI timestamp
+ if (_sapp.d3d11.use_dxgi_frame_stats) {
+ DXGI_FRAME_STATISTICS dxgi_stats;
+ _sapp_clear(&dxgi_stats, sizeof(dxgi_stats));
+ HRESULT hr = _sapp_dxgi_GetFrameStatistics(_sapp.d3d11.swap_chain, &dxgi_stats);
+ if (SUCCEEDED(hr)) {
+ if (dxgi_stats.SyncRefreshCount != _sapp.d3d11.sync_refresh_count) {
+ if ((_sapp.d3d11.sync_refresh_count + 1) != dxgi_stats.SyncRefreshCount) {
+ _sapp_timing_discontinuity(&_sapp.timing);
+ }
+ _sapp.d3d11.sync_refresh_count = dxgi_stats.SyncRefreshCount;
+ LARGE_INTEGER qpc = dxgi_stats.SyncQPCTime;
+ const uint64_t now = (uint64_t)_sapp_int64_muldiv(qpc.QuadPart - _sapp.timing.timestamp.win.start.QuadPart, 1000000000, _sapp.timing.timestamp.win.freq.QuadPart);
+ _sapp_timing_external(&_sapp.timing, (double)now / 1000000000.0);
+ }
+ return;
+ }
+ }
+ // fallback if swap model isn't "flip-discard" or GetFrameStatistics failed for another reason
+ _sapp_timing_measure(&_sapp.timing);
+ #endif
+ #if defined(SOKOL_GLCORE33)
+ _sapp_timing_measure(&_sapp.timing);
+ #endif
+}
+
+_SOKOL_PRIVATE LRESULT CALLBACK _sapp_win32_wndproc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
+ if (!_sapp.win32.in_create_window) {
+ switch (uMsg) {
+ case WM_CLOSE:
+ /* only give user a chance to intervene when sapp_quit() wasn't already called */
+ if (!_sapp.quit_ordered) {
+ /* if window should be closed and event handling is enabled, give user code
+ a change to intervene via sapp_cancel_quit()
+ */
+ _sapp.quit_requested = true;
+ _sapp_win32_app_event(SAPP_EVENTTYPE_QUIT_REQUESTED);
+ /* if user code hasn't intervened, quit the app */
+ if (_sapp.quit_requested) {
+ _sapp.quit_ordered = true;
+ }
+ }
+ if (_sapp.quit_ordered) {
+ PostQuitMessage(0);
+ }
+ return 0;
+ case WM_SYSCOMMAND:
+ switch (wParam & 0xFFF0) {
+ case SC_SCREENSAVE:
+ case SC_MONITORPOWER:
+ if (_sapp.fullscreen) {
+ /* disable screen saver and blanking in fullscreen mode */
+ return 0;
+ }
+ break;
+ case SC_KEYMENU:
+ /* user trying to access menu via ALT */
+ return 0;
+ }
+ break;
+ case WM_ERASEBKGND:
+ return 1;
+ case WM_SIZE:
+ {
+ const bool iconified = wParam == SIZE_MINIMIZED;
+ if (iconified != _sapp.win32.iconified) {
+ _sapp.win32.iconified = iconified;
+ if (iconified) {
+ _sapp_win32_app_event(SAPP_EVENTTYPE_ICONIFIED);
+ }
+ else {
+ _sapp_win32_app_event(SAPP_EVENTTYPE_RESTORED);
+ }
+ }
+ }
+ break;
+ case WM_SETFOCUS:
+ _sapp_win32_app_event(SAPP_EVENTTYPE_FOCUSED);
+ break;
+ case WM_KILLFOCUS:
+ /* if focus is lost for any reason, and we're in mouse locked mode, disable mouse lock */
+ if (_sapp.mouse.locked) {
+ _sapp_win32_lock_mouse(false);
+ }
+ _sapp_win32_app_event(SAPP_EVENTTYPE_UNFOCUSED);
+ break;
+ case WM_SETCURSOR:
+ if (LOWORD(lParam) == HTCLIENT) {
+ _sapp_win32_update_cursor(_sapp.mouse.current_cursor, _sapp.mouse.shown, true);
+ return TRUE;
+ }
+ break;
+ case WM_DPICHANGED:
+ {
+ /* Update window's DPI and size if its moved to another monitor with a different DPI
+ Only sent if DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 is used.
+ */
+ _sapp_win32_dpi_changed(hWnd, (LPRECT)lParam);
+ break;
+ }
+ case WM_LBUTTONDOWN:
+ _sapp_win32_mouse_update(lParam);
+ _sapp_win32_mouse_event(SAPP_EVENTTYPE_MOUSE_DOWN, SAPP_MOUSEBUTTON_LEFT);
+ _sapp_win32_capture_mouse(1<<SAPP_MOUSEBUTTON_LEFT);
+ break;
+ case WM_RBUTTONDOWN:
+ _sapp_win32_mouse_update(lParam);
+ _sapp_win32_mouse_event(SAPP_EVENTTYPE_MOUSE_DOWN, SAPP_MOUSEBUTTON_RIGHT);
+ _sapp_win32_capture_mouse(1<<SAPP_MOUSEBUTTON_RIGHT);
+ break;
+ case WM_MBUTTONDOWN:
+ _sapp_win32_mouse_update(lParam);
+ _sapp_win32_mouse_event(SAPP_EVENTTYPE_MOUSE_DOWN, SAPP_MOUSEBUTTON_MIDDLE);
+ _sapp_win32_capture_mouse(1<<SAPP_MOUSEBUTTON_MIDDLE);
+ break;
+ case WM_LBUTTONUP:
+ _sapp_win32_mouse_update(lParam);
+ _sapp_win32_mouse_event(SAPP_EVENTTYPE_MOUSE_UP, SAPP_MOUSEBUTTON_LEFT);
+ _sapp_win32_release_mouse(1<<SAPP_MOUSEBUTTON_LEFT);
+ break;
+ case WM_RBUTTONUP:
+ _sapp_win32_mouse_update(lParam);
+ _sapp_win32_mouse_event(SAPP_EVENTTYPE_MOUSE_UP, SAPP_MOUSEBUTTON_RIGHT);
+ _sapp_win32_release_mouse(1<<SAPP_MOUSEBUTTON_RIGHT);
+ break;
+ case WM_MBUTTONUP:
+ _sapp_win32_mouse_update(lParam);
+ _sapp_win32_mouse_event(SAPP_EVENTTYPE_MOUSE_UP, SAPP_MOUSEBUTTON_MIDDLE);
+ _sapp_win32_release_mouse(1<<SAPP_MOUSEBUTTON_MIDDLE);
+ break;
+ case WM_MOUSEMOVE:
+ if (!_sapp.mouse.locked) {
+ _sapp_win32_mouse_update(lParam);
+ if (!_sapp.win32.mouse_tracked) {
+ _sapp.win32.mouse_tracked = true;
+ TRACKMOUSEEVENT tme;
+ _sapp_clear(&tme, sizeof(tme));
+ tme.cbSize = sizeof(tme);
+ tme.dwFlags = TME_LEAVE;
+ tme.hwndTrack = _sapp.win32.hwnd;
+ TrackMouseEvent(&tme);
+ _sapp.mouse.dx = 0.0f;
+ _sapp.mouse.dy = 0.0f;
+ _sapp_win32_mouse_event(SAPP_EVENTTYPE_MOUSE_ENTER, SAPP_MOUSEBUTTON_INVALID);
+ }
+ _sapp_win32_mouse_event(SAPP_EVENTTYPE_MOUSE_MOVE, SAPP_MOUSEBUTTON_INVALID);
+ }
+ break;
+ case WM_INPUT:
+ /* raw mouse input during mouse-lock */
+ if (_sapp.mouse.locked) {
+ HRAWINPUT ri = (HRAWINPUT) lParam;
+ UINT size = sizeof(_sapp.win32.raw_input_data);
+ // see: https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getrawinputdata
+ if ((UINT)-1 == GetRawInputData(ri, RID_INPUT, &_sapp.win32.raw_input_data, &size, sizeof(RAWINPUTHEADER))) {
+ _SAPP_ERROR(WIN32_GET_RAW_INPUT_DATA_FAILED);
+ break;
+ }
+ const RAWINPUT* raw_mouse_data = (const RAWINPUT*) &_sapp.win32.raw_input_data;
+ if (raw_mouse_data->data.mouse.usFlags & MOUSE_MOVE_ABSOLUTE) {
+ /* mouse only reports absolute position
+ NOTE: This code is untested and will most likely behave wrong in Remote Desktop sessions.
+ (such remote desktop sessions are setting the MOUSE_MOVE_ABSOLUTE flag).
+ See: https://github.com/floooh/sokol/issues/806 and
+ https://github.com/microsoft/DirectXTK/commit/ef56b63f3739381e451f7a5a5bd2c9779d2a7555)
+ */
+ LONG new_x = raw_mouse_data->data.mouse.lLastX;
+ LONG new_y = raw_mouse_data->data.mouse.lLastY;
+ if (_sapp.win32.raw_input_mousepos_valid) {
+ _sapp.mouse.dx = (float) (new_x - _sapp.win32.raw_input_mousepos_x);
+ _sapp.mouse.dy = (float) (new_y - _sapp.win32.raw_input_mousepos_y);
+ }
+ _sapp.win32.raw_input_mousepos_x = new_x;
+ _sapp.win32.raw_input_mousepos_y = new_y;
+ _sapp.win32.raw_input_mousepos_valid = true;
+ }
+ else {
+ /* mouse reports movement delta (this seems to be the common case) */
+ _sapp.mouse.dx = (float) raw_mouse_data->data.mouse.lLastX;
+ _sapp.mouse.dy = (float) raw_mouse_data->data.mouse.lLastY;
+ }
+ _sapp_win32_mouse_event(SAPP_EVENTTYPE_MOUSE_MOVE, SAPP_MOUSEBUTTON_INVALID);
+ }
+ break;
+
+ case WM_MOUSELEAVE:
+ if (!_sapp.mouse.locked) {
+ _sapp.mouse.dx = 0.0f;
+ _sapp.mouse.dy = 0.0f;
+ _sapp.win32.mouse_tracked = false;
+ _sapp_win32_mouse_event(SAPP_EVENTTYPE_MOUSE_LEAVE, SAPP_MOUSEBUTTON_INVALID);
+ }
+ break;
+ case WM_MOUSEWHEEL:
+ _sapp_win32_scroll_event(0.0f, (float)((SHORT)HIWORD(wParam)));
+ break;
+ case WM_MOUSEHWHEEL:
+ _sapp_win32_scroll_event((float)((SHORT)HIWORD(wParam)), 0.0f);
+ break;
+ case WM_CHAR:
+ _sapp_win32_char_event((uint32_t)wParam, !!(lParam&0x40000000));
+ break;
+ case WM_KEYDOWN:
+ case WM_SYSKEYDOWN:
+ _sapp_win32_key_event(SAPP_EVENTTYPE_KEY_DOWN, (int)(HIWORD(lParam)&0x1FF), !!(lParam&0x40000000));
+ break;
+ case WM_KEYUP:
+ case WM_SYSKEYUP:
+ _sapp_win32_key_event(SAPP_EVENTTYPE_KEY_UP, (int)(HIWORD(lParam)&0x1FF), false);
+ break;
+ case WM_ENTERSIZEMOVE:
+ SetTimer(_sapp.win32.hwnd, 1, USER_TIMER_MINIMUM, NULL);
+ break;
+ case WM_EXITSIZEMOVE:
+ KillTimer(_sapp.win32.hwnd, 1);
+ break;
+ case WM_TIMER:
+ _sapp_win32_timing_measure();
+ _sapp_frame();
+ #if defined(SOKOL_D3D11)
+ // present with DXGI_PRESENT_DO_NOT_WAIT
+ _sapp_d3d11_present(true);
+ #endif
+ #if defined(SOKOL_GLCORE33)
+ _sapp_wgl_swap_buffers();
+ #endif
+ /* NOTE: resizing the swap-chain during resize leads to a substantial
+ memory spike (hundreds of megabytes for a few seconds).
+
+ if (_sapp_win32_update_dimensions()) {
+ #if defined(SOKOL_D3D11)
+ _sapp_d3d11_resize_default_render_target();
+ #endif
+ _sapp_win32_app_event(SAPP_EVENTTYPE_RESIZED);
+ }
+ */
+ break;
+ case WM_NCLBUTTONDOWN:
+ /* workaround for half-second pause when starting to move window
+ see: https://gamedev.net/forums/topic/672094-keeping-things-moving-during-win32-moveresize-events/5254386/
+ */
+ if (SendMessage(_sapp.win32.hwnd, WM_NCHITTEST, wParam, lParam) == HTCAPTION) {
+ POINT point;
+ GetCursorPos(&point);
+ ScreenToClient(_sapp.win32.hwnd, &point);
+ PostMessage(_sapp.win32.hwnd, WM_MOUSEMOVE, 0, ((uint32_t)point.x)|(((uint32_t)point.y) << 16));
+ }
+ break;
+ case WM_DROPFILES:
+ _sapp_win32_files_dropped((HDROP)wParam);
+ break;
+ case WM_DISPLAYCHANGE:
+ // refresh rate might have changed
+ _sapp_timing_reset(&_sapp.timing);
+ break;
+
+ default:
+ break;
+ }
+ }
+ return DefWindowProcW(hWnd, uMsg, wParam, lParam);
+}
+
+_SOKOL_PRIVATE void _sapp_win32_create_window(void) {
+ WNDCLASSW wndclassw;
+ _sapp_clear(&wndclassw, sizeof(wndclassw));
+ wndclassw.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
+ wndclassw.lpfnWndProc = (WNDPROC) _sapp_win32_wndproc;
+ wndclassw.hInstance = GetModuleHandleW(NULL);
+ wndclassw.hCursor = LoadCursor(NULL, IDC_ARROW);
+ wndclassw.hIcon = LoadIcon(NULL, IDI_WINLOGO);
+ wndclassw.lpszClassName = L"SOKOLAPP";
+ RegisterClassW(&wndclassw);
+
+ /* NOTE: regardless whether fullscreen is requested or not, a regular
+ windowed-mode window will always be created first (however in hidden
+ mode, so that no windowed-mode window pops up before the fullscreen window)
+ */
+ const DWORD win_ex_style = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
+ RECT rect = { 0, 0, 0, 0 };
+ DWORD win_style = WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_SIZEBOX;
+ rect.right = (int) ((float)_sapp.window_width * _sapp.win32.dpi.window_scale);
+ rect.bottom = (int) ((float)_sapp.window_height * _sapp.win32.dpi.window_scale);
+ const bool use_default_width = 0 == _sapp.window_width;
+ const bool use_default_height = 0 == _sapp.window_height;
+ AdjustWindowRectEx(&rect, win_style, FALSE, win_ex_style);
+ const int win_width = rect.right - rect.left;
+ const int win_height = rect.bottom - rect.top;
+ _sapp.win32.in_create_window = true;
+ _sapp.win32.hwnd = CreateWindowExW(
+ win_ex_style, // dwExStyle
+ L"SOKOLAPP", // lpClassName
+ _sapp.window_title_wide, // lpWindowName
+ win_style, // dwStyle
+ CW_USEDEFAULT, // X
+ SW_HIDE, // Y (NOTE: CW_USEDEFAULT is not used for position here, but internally calls ShowWindow!
+ use_default_width ? CW_USEDEFAULT : win_width, // nWidth
+ use_default_height ? CW_USEDEFAULT : win_height, // nHeight (NOTE: if width is CW_USEDEFAULT, height is actually ignored)
+ NULL, // hWndParent
+ NULL, // hMenu
+ GetModuleHandle(NULL), // hInstance
+ NULL); // lParam
+ _sapp.win32.in_create_window = false;
+ _sapp.win32.dc = GetDC(_sapp.win32.hwnd);
+ _sapp.win32.hmonitor = MonitorFromWindow(_sapp.win32.hwnd, MONITOR_DEFAULTTONULL);
+ SOKOL_ASSERT(_sapp.win32.dc);
+
+ /* this will get the actual windowed-mode window size, if fullscreen
+ is requested, the set_fullscreen function will then capture the
+ current window rectangle, which then might be used later to
+ restore the window position when switching back to windowed
+ */
+ _sapp_win32_update_dimensions();
+ if (_sapp.fullscreen) {
+ _sapp_win32_set_fullscreen(_sapp.fullscreen, SWP_HIDEWINDOW);
+ _sapp_win32_update_dimensions();
+ }
+ ShowWindow(_sapp.win32.hwnd, SW_SHOW);
+ DragAcceptFiles(_sapp.win32.hwnd, 1);
+}
+
+_SOKOL_PRIVATE void _sapp_win32_destroy_window(void) {
+ DestroyWindow(_sapp.win32.hwnd); _sapp.win32.hwnd = 0;
+ UnregisterClassW(L"SOKOLAPP", GetModuleHandleW(NULL));
+}
+
+_SOKOL_PRIVATE void _sapp_win32_destroy_icons(void) {
+ if (_sapp.win32.big_icon) {
+ DestroyIcon(_sapp.win32.big_icon);
+ _sapp.win32.big_icon = 0;
+ }
+ if (_sapp.win32.small_icon) {
+ DestroyIcon(_sapp.win32.small_icon);
+ _sapp.win32.small_icon = 0;
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_init_console(void) {
+ if (_sapp.desc.win32_console_create || _sapp.desc.win32_console_attach) {
+ BOOL con_valid = FALSE;
+ if (_sapp.desc.win32_console_create) {
+ con_valid = AllocConsole();
+ }
+ else if (_sapp.desc.win32_console_attach) {
+ con_valid = AttachConsole(ATTACH_PARENT_PROCESS);
+ }
+ if (con_valid) {
+ FILE* res_fp = 0;
+ errno_t err;
+ err = freopen_s(&res_fp, "CON", "w", stdout);
+ (void)err;
+ err = freopen_s(&res_fp, "CON", "w", stderr);
+ (void)err;
+ }
+ }
+ if (_sapp.desc.win32_console_utf8) {
+ _sapp.win32.orig_codepage = GetConsoleOutputCP();
+ SetConsoleOutputCP(CP_UTF8);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_restore_console(void) {
+ if (_sapp.desc.win32_console_utf8) {
+ SetConsoleOutputCP(_sapp.win32.orig_codepage);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_init_dpi(void) {
+
+ DECLARE_HANDLE(DPI_AWARENESS_CONTEXT_T);
+ typedef BOOL(WINAPI * SETPROCESSDPIAWARE_T)(void);
+ typedef bool (WINAPI * SETPROCESSDPIAWARENESSCONTEXT_T)(DPI_AWARENESS_CONTEXT_T); // since Windows 10, version 1703
+ typedef HRESULT(WINAPI * SETPROCESSDPIAWARENESS_T)(PROCESS_DPI_AWARENESS);
+ typedef HRESULT(WINAPI * GETDPIFORMONITOR_T)(HMONITOR, MONITOR_DPI_TYPE, UINT*, UINT*);
+
+ SETPROCESSDPIAWARE_T fn_setprocessdpiaware = 0;
+ SETPROCESSDPIAWARENESS_T fn_setprocessdpiawareness = 0;
+ GETDPIFORMONITOR_T fn_getdpiformonitor = 0;
+ SETPROCESSDPIAWARENESSCONTEXT_T fn_setprocessdpiawarenesscontext =0;
+
+ HINSTANCE user32 = LoadLibraryA("user32.dll");
+ if (user32) {
+ fn_setprocessdpiaware = (SETPROCESSDPIAWARE_T)(void*) GetProcAddress(user32, "SetProcessDPIAware");
+ fn_setprocessdpiawarenesscontext = (SETPROCESSDPIAWARENESSCONTEXT_T)(void*) GetProcAddress(user32, "SetProcessDpiAwarenessContext");
+ }
+ HINSTANCE shcore = LoadLibraryA("shcore.dll");
+ if (shcore) {
+ fn_setprocessdpiawareness = (SETPROCESSDPIAWARENESS_T)(void*) GetProcAddress(shcore, "SetProcessDpiAwareness");
+ fn_getdpiformonitor = (GETDPIFORMONITOR_T)(void*) GetProcAddress(shcore, "GetDpiForMonitor");
+ }
+ /*
+ NOTE on SetProcessDpiAware() vs SetProcessDpiAwareness() vs SetProcessDpiAwarenessContext():
+
+ These are different attempts to get DPI handling on Windows right, from oldest
+ to newest. SetProcessDpiAwarenessContext() is required for the new
+ DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 method.
+ */
+ if (fn_setprocessdpiawareness) {
+ if (_sapp.desc.high_dpi) {
+ /* app requests HighDPI rendering, first try the Win10 Creator Update per-monitor-dpi awareness,
+ if that fails, fall back to system-dpi-awareness
+ */
+ _sapp.win32.dpi.aware = true;
+ DPI_AWARENESS_CONTEXT_T per_monitor_aware_v2 = (DPI_AWARENESS_CONTEXT_T)-4;
+ if (!(fn_setprocessdpiawarenesscontext && fn_setprocessdpiawarenesscontext(per_monitor_aware_v2))) {
+ // fallback to system-dpi-aware
+ fn_setprocessdpiawareness(PROCESS_SYSTEM_DPI_AWARE);
+ }
+ }
+ else {
+ /* if the app didn't request HighDPI rendering, let Windows do the upscaling */
+ _sapp.win32.dpi.aware = false;
+ fn_setprocessdpiawareness(PROCESS_DPI_UNAWARE);
+ }
+ }
+ else if (fn_setprocessdpiaware) {
+ // fallback for Windows 7
+ _sapp.win32.dpi.aware = true;
+ fn_setprocessdpiaware();
+ }
+ /* get dpi scale factor for main monitor */
+ if (fn_getdpiformonitor && _sapp.win32.dpi.aware) {
+ POINT pt = { 1, 1 };
+ HMONITOR hm = MonitorFromPoint(pt, MONITOR_DEFAULTTONEAREST);
+ UINT dpix, dpiy;
+ HRESULT hr = fn_getdpiformonitor(hm, MDT_EFFECTIVE_DPI, &dpix, &dpiy);
+ _SOKOL_UNUSED(hr);
+ SOKOL_ASSERT(SUCCEEDED(hr));
+ /* clamp window scale to an integer factor */
+ _sapp.win32.dpi.window_scale = (float)dpix / 96.0f;
+ }
+ else {
+ _sapp.win32.dpi.window_scale = 1.0f;
+ }
+ if (_sapp.desc.high_dpi) {
+ _sapp.win32.dpi.content_scale = _sapp.win32.dpi.window_scale;
+ _sapp.win32.dpi.mouse_scale = 1.0f;
+ }
+ else {
+ _sapp.win32.dpi.content_scale = 1.0f;
+ _sapp.win32.dpi.mouse_scale = 1.0f / _sapp.win32.dpi.window_scale;
+ }
+ _sapp.dpi_scale = _sapp.win32.dpi.content_scale;
+ if (user32) {
+ FreeLibrary(user32);
+ }
+ if (shcore) {
+ FreeLibrary(shcore);
+ }
+}
+
+_SOKOL_PRIVATE bool _sapp_win32_set_clipboard_string(const char* str) {
+ SOKOL_ASSERT(str);
+ SOKOL_ASSERT(_sapp.win32.hwnd);
+ SOKOL_ASSERT(_sapp.clipboard.enabled && (_sapp.clipboard.buf_size > 0));
+
+ if (!OpenClipboard(_sapp.win32.hwnd)) {
+ return false;
+ }
+
+ HANDLE object = 0;
+ wchar_t* wchar_buf = 0;
+
+ const SIZE_T wchar_buf_size = (SIZE_T)_sapp.clipboard.buf_size * sizeof(wchar_t);
+ object = GlobalAlloc(GMEM_MOVEABLE, wchar_buf_size);
+ if (NULL == object) {
+ goto error;
+ }
+ wchar_buf = (wchar_t*) GlobalLock(object);
+ if (NULL == wchar_buf) {
+ goto error;
+ }
+ if (!_sapp_win32_utf8_to_wide(str, wchar_buf, (int)wchar_buf_size)) {
+ goto error;
+ }
+ GlobalUnlock(object);
+ wchar_buf = 0;
+ EmptyClipboard();
+ // NOTE: when successful, SetClipboardData() takes ownership of memory object!
+ if (NULL == SetClipboardData(CF_UNICODETEXT, object)) {
+ goto error;
+ }
+ CloseClipboard();
+ return true;
+
+error:
+ if (wchar_buf) {
+ GlobalUnlock(object);
+ }
+ if (object) {
+ GlobalFree(object);
+ }
+ CloseClipboard();
+ return false;
+}
+
+_SOKOL_PRIVATE const char* _sapp_win32_get_clipboard_string(void) {
+ SOKOL_ASSERT(_sapp.clipboard.enabled && _sapp.clipboard.buffer);
+ SOKOL_ASSERT(_sapp.win32.hwnd);
+ if (!OpenClipboard(_sapp.win32.hwnd)) {
+ /* silently ignore any errors and just return the current
+ content of the local clipboard buffer
+ */
+ return _sapp.clipboard.buffer;
+ }
+ HANDLE object = GetClipboardData(CF_UNICODETEXT);
+ if (!object) {
+ CloseClipboard();
+ return _sapp.clipboard.buffer;
+ }
+ const wchar_t* wchar_buf = (const wchar_t*) GlobalLock(object);
+ if (!wchar_buf) {
+ CloseClipboard();
+ return _sapp.clipboard.buffer;
+ }
+ if (!_sapp_win32_wide_to_utf8(wchar_buf, _sapp.clipboard.buffer, _sapp.clipboard.buf_size)) {
+ _SAPP_ERROR(CLIPBOARD_STRING_TOO_BIG);
+ }
+ GlobalUnlock(object);
+ CloseClipboard();
+ return _sapp.clipboard.buffer;
+}
+
+_SOKOL_PRIVATE void _sapp_win32_update_window_title(void) {
+ _sapp_win32_utf8_to_wide(_sapp.window_title, _sapp.window_title_wide, sizeof(_sapp.window_title_wide));
+ SetWindowTextW(_sapp.win32.hwnd, _sapp.window_title_wide);
+}
+
+_SOKOL_PRIVATE HICON _sapp_win32_create_icon_from_image(const sapp_image_desc* desc) {
+ BITMAPV5HEADER bi;
+ _sapp_clear(&bi, sizeof(bi));
+ bi.bV5Size = sizeof(bi);
+ bi.bV5Width = desc->width;
+ bi.bV5Height = -desc->height; // NOTE the '-' here to indicate that origin is top-left
+ bi.bV5Planes = 1;
+ bi.bV5BitCount = 32;
+ bi.bV5Compression = BI_BITFIELDS;
+ bi.bV5RedMask = 0x00FF0000;
+ bi.bV5GreenMask = 0x0000FF00;
+ bi.bV5BlueMask = 0x000000FF;
+ bi.bV5AlphaMask = 0xFF000000;
+
+ uint8_t* target = 0;
+ const uint8_t* source = (const uint8_t*)desc->pixels.ptr;
+
+ HDC dc = GetDC(NULL);
+ HBITMAP color = CreateDIBSection(dc, (BITMAPINFO*)&bi, DIB_RGB_COLORS, (void**)&target, NULL, (DWORD)0);
+ ReleaseDC(NULL, dc);
+ if (0 == color) {
+ return NULL;
+ }
+ SOKOL_ASSERT(target);
+
+ HBITMAP mask = CreateBitmap(desc->width, desc->height, 1, 1, NULL);
+ if (0 == mask) {
+ DeleteObject(color);
+ return NULL;
+ }
+
+ for (int i = 0; i < (desc->width*desc->height); i++) {
+ target[0] = source[2];
+ target[1] = source[1];
+ target[2] = source[0];
+ target[3] = source[3];
+ target += 4;
+ source += 4;
+ }
+
+ ICONINFO icon_info;
+ _sapp_clear(&icon_info, sizeof(icon_info));
+ icon_info.fIcon = true;
+ icon_info.xHotspot = 0;
+ icon_info.yHotspot = 0;
+ icon_info.hbmMask = mask;
+ icon_info.hbmColor = color;
+ HICON icon_handle = CreateIconIndirect(&icon_info);
+ DeleteObject(color);
+ DeleteObject(mask);
+
+ return icon_handle;
+}
+
+_SOKOL_PRIVATE void _sapp_win32_set_icon(const sapp_icon_desc* icon_desc, int num_images) {
+ SOKOL_ASSERT((num_images > 0) && (num_images <= SAPP_MAX_ICONIMAGES));
+
+ int big_img_index = _sapp_image_bestmatch(icon_desc->images, num_images, GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON));
+ int sml_img_index = _sapp_image_bestmatch(icon_desc->images, num_images, GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON));
+ HICON big_icon = _sapp_win32_create_icon_from_image(&icon_desc->images[big_img_index]);
+ HICON sml_icon = _sapp_win32_create_icon_from_image(&icon_desc->images[sml_img_index]);
+
+ // if icon creation or lookup has failed for some reason, leave the currently set icon untouched
+ if (0 != big_icon) {
+ SendMessage(_sapp.win32.hwnd, WM_SETICON, ICON_BIG, (LPARAM) big_icon);
+ if (0 != _sapp.win32.big_icon) {
+ DestroyIcon(_sapp.win32.big_icon);
+ }
+ _sapp.win32.big_icon = big_icon;
+ }
+ if (0 != sml_icon) {
+ SendMessage(_sapp.win32.hwnd, WM_SETICON, ICON_SMALL, (LPARAM) sml_icon);
+ if (0 != _sapp.win32.small_icon) {
+ DestroyIcon(_sapp.win32.small_icon);
+ }
+ _sapp.win32.small_icon = sml_icon;
+ }
+}
+
+/* don't laugh, but this seems to be the easiest and most robust
+ way to check if we're running on Win10
+
+ From: https://github.com/videolan/vlc/blob/232fb13b0d6110c4d1b683cde24cf9a7f2c5c2ea/modules/video_output/win32/d3d11_swapchain.c#L263
+*/
+_SOKOL_PRIVATE bool _sapp_win32_is_win10_or_greater(void) {
+ HMODULE h = GetModuleHandleW(L"kernel32.dll");
+ if (NULL != h) {
+ return (NULL != GetProcAddress(h, "GetSystemCpuSetInformation"));
+ }
+ else {
+ return false;
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_win32_run(const sapp_desc* desc) {
+ _sapp_init_state(desc);
+ _sapp_win32_init_console();
+ _sapp.win32.is_win10_or_greater = _sapp_win32_is_win10_or_greater();
+ _sapp_win32_init_keytable();
+ _sapp_win32_utf8_to_wide(_sapp.window_title, _sapp.window_title_wide, sizeof(_sapp.window_title_wide));
+ _sapp_win32_init_dpi();
+ _sapp_win32_init_cursors();
+ _sapp_win32_create_window();
+ sapp_set_icon(&desc->icon);
+ #if defined(SOKOL_D3D11)
+ _sapp_d3d11_create_device_and_swapchain();
+ _sapp_d3d11_create_default_render_target();
+ #endif
+ #if defined(SOKOL_GLCORE33)
+ _sapp_wgl_init();
+ _sapp_wgl_load_extensions();
+ _sapp_wgl_create_context();
+ #endif
+ _sapp.valid = true;
+
+ bool done = false;
+ while (!(done || _sapp.quit_ordered)) {
+ _sapp_win32_timing_measure();
+ MSG msg;
+ while (PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE)) {
+ if (WM_QUIT == msg.message) {
+ done = true;
+ continue;
+ }
+ else {
+ TranslateMessage(&msg);
+ DispatchMessageW(&msg);
+ }
+ }
+ _sapp_frame();
+ #if defined(SOKOL_D3D11)
+ _sapp_d3d11_present(false);
+ if (IsIconic(_sapp.win32.hwnd)) {
+ Sleep((DWORD)(16 * _sapp.swap_interval));
+ }
+ #endif
+ #if defined(SOKOL_GLCORE33)
+ _sapp_wgl_swap_buffers();
+ #endif
+ /* check for window resized, this cannot happen in WM_SIZE as it explodes memory usage */
+ if (_sapp_win32_update_dimensions()) {
+ #if defined(SOKOL_D3D11)
+ _sapp_d3d11_resize_default_render_target();
+ #endif
+ _sapp_win32_app_event(SAPP_EVENTTYPE_RESIZED);
+ }
+ /* check if the window monitor has changed, need to reset timing because
+ the new monitor might have a different refresh rate
+ */
+ if (_sapp_win32_update_monitor()) {
+ _sapp_timing_reset(&_sapp.timing);
+ }
+ if (_sapp.quit_requested) {
+ PostMessage(_sapp.win32.hwnd, WM_CLOSE, 0, 0);
+ }
+ }
+ _sapp_call_cleanup();
+
+ #if defined(SOKOL_D3D11)
+ _sapp_d3d11_destroy_default_render_target();
+ _sapp_d3d11_destroy_device_and_swapchain();
+ #else
+ _sapp_wgl_destroy_context();
+ _sapp_wgl_shutdown();
+ #endif
+ _sapp_win32_destroy_window();
+ _sapp_win32_destroy_icons();
+ _sapp_win32_restore_console();
+ _sapp_discard_state();
+}
+
+_SOKOL_PRIVATE char** _sapp_win32_command_line_to_utf8_argv(LPWSTR w_command_line, int* o_argc) {
+ int argc = 0;
+ char** argv = 0;
+ char* args;
+
+ LPWSTR* w_argv = CommandLineToArgvW(w_command_line, &argc);
+ if (w_argv == NULL) {
+ // FIXME: chicken egg problem, can't report errors before sokol_main() is called!
+ } else {
+ size_t size = wcslen(w_command_line) * 4;
+ argv = (char**) _sapp_malloc_clear(((size_t)argc + 1) * sizeof(char*) + size);
+ SOKOL_ASSERT(argv);
+ args = (char*) &argv[argc + 1];
+ int n;
+ for (int i = 0; i < argc; ++i) {
+ n = WideCharToMultiByte(CP_UTF8, 0, w_argv[i], -1, args, (int)size, NULL, NULL);
+ if (n == 0) {
+ // FIXME: chicken egg problem, can't report errors before sokol_main() is called!
+ break;
+ }
+ argv[i] = args;
+ size -= (size_t)n;
+ args += n;
+ }
+ LocalFree(w_argv);
+ }
+ *o_argc = argc;
+ return argv;
+}
+
+#if !defined(SOKOL_NO_ENTRY)
+#if defined(SOKOL_WIN32_FORCE_MAIN)
+int main(int argc, char* argv[]) {
+ sapp_desc desc = sokol_main(argc, argv);
+ _sapp_win32_run(&desc);
+ return 0;
+}
+#else
+int WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nCmdShow) {
+ _SOKOL_UNUSED(hInstance);
+ _SOKOL_UNUSED(hPrevInstance);
+ _SOKOL_UNUSED(lpCmdLine);
+ _SOKOL_UNUSED(nCmdShow);
+ int argc_utf8 = 0;
+ char** argv_utf8 = _sapp_win32_command_line_to_utf8_argv(GetCommandLineW(), &argc_utf8);
+ sapp_desc desc = sokol_main(argc_utf8, argv_utf8);
+ _sapp_win32_run(&desc);
+ _sapp_free(argv_utf8);
+ return 0;
+}
+#endif /* SOKOL_WIN32_FORCE_MAIN */
+#endif /* SOKOL_NO_ENTRY */
+
+#ifdef _MSC_VER
+ #pragma warning(pop)
+#endif
+
+#endif /* _SAPP_WIN32 */
+
+// █████ ███ ██ ██████ ██████ ██████ ██ ██████
+// ██ ██ ████ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ███████ ██ ██ ██ ██ ██ ██████ ██ ██ ██ ██ ██
+// ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ██ ██ ██ ████ ██████ ██ ██ ██████ ██ ██████
+//
+// >>android
+#if defined(_SAPP_ANDROID)
+
+/* android loop thread */
+_SOKOL_PRIVATE bool _sapp_android_init_egl(void) {
+ SOKOL_ASSERT(_sapp.android.display == EGL_NO_DISPLAY);
+ SOKOL_ASSERT(_sapp.android.context == EGL_NO_CONTEXT);
+
+ EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ if (display == EGL_NO_DISPLAY) {
+ return false;
+ }
+ if (eglInitialize(display, NULL, NULL) == EGL_FALSE) {
+ return false;
+ }
+ EGLint alpha_size = _sapp.desc.alpha ? 8 : 0;
+ const EGLint cfg_attributes[] = {
+ EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+ EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT,
+ EGL_RED_SIZE, 8,
+ EGL_GREEN_SIZE, 8,
+ EGL_BLUE_SIZE, 8,
+ EGL_ALPHA_SIZE, alpha_size,
+ EGL_DEPTH_SIZE, 16,
+ EGL_STENCIL_SIZE, 0,
+ EGL_NONE,
+ };
+ EGLConfig available_cfgs[32];
+ EGLint cfg_count;
+ eglChooseConfig(display, cfg_attributes, available_cfgs, 32, &cfg_count);
+ SOKOL_ASSERT(cfg_count > 0);
+ SOKOL_ASSERT(cfg_count <= 32);
+
+ /* find config with 8-bit rgb buffer if available, ndk sample does not trust egl spec */
+ EGLConfig config;
+ bool exact_cfg_found = false;
+ for (int i = 0; i < cfg_count; ++i) {
+ EGLConfig c = available_cfgs[i];
+ EGLint r, g, b, a, d;
+ if (eglGetConfigAttrib(display, c, EGL_RED_SIZE, &r) == EGL_TRUE &&
+ eglGetConfigAttrib(display, c, EGL_GREEN_SIZE, &g) == EGL_TRUE &&
+ eglGetConfigAttrib(display, c, EGL_BLUE_SIZE, &b) == EGL_TRUE &&
+ eglGetConfigAttrib(display, c, EGL_ALPHA_SIZE, &a) == EGL_TRUE &&
+ eglGetConfigAttrib(display, c, EGL_DEPTH_SIZE, &d) == EGL_TRUE &&
+ r == 8 && g == 8 && b == 8 && (alpha_size == 0 || a == alpha_size) && d == 16) {
+ exact_cfg_found = true;
+ config = c;
+ break;
+ }
+ }
+ if (!exact_cfg_found) {
+ config = available_cfgs[0];
+ }
+
+ EGLint ctx_attributes[] = {
+ EGL_CONTEXT_CLIENT_VERSION, 3,
+ EGL_NONE,
+ };
+ EGLContext context = eglCreateContext(display, config, EGL_NO_CONTEXT, ctx_attributes);
+ if (context == EGL_NO_CONTEXT) {
+ return false;
+ }
+
+ _sapp.android.config = config;
+ _sapp.android.display = display;
+ _sapp.android.context = context;
+ return true;
+}
+
+_SOKOL_PRIVATE void _sapp_android_cleanup_egl(void) {
+ if (_sapp.android.display != EGL_NO_DISPLAY) {
+ eglMakeCurrent(_sapp.android.display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+ if (_sapp.android.surface != EGL_NO_SURFACE) {
+ eglDestroySurface(_sapp.android.display, _sapp.android.surface);
+ _sapp.android.surface = EGL_NO_SURFACE;
+ }
+ if (_sapp.android.context != EGL_NO_CONTEXT) {
+ eglDestroyContext(_sapp.android.display, _sapp.android.context);
+ _sapp.android.context = EGL_NO_CONTEXT;
+ }
+ eglTerminate(_sapp.android.display);
+ _sapp.android.display = EGL_NO_DISPLAY;
+ }
+}
+
+_SOKOL_PRIVATE bool _sapp_android_init_egl_surface(ANativeWindow* window) {
+ SOKOL_ASSERT(_sapp.android.display != EGL_NO_DISPLAY);
+ SOKOL_ASSERT(_sapp.android.context != EGL_NO_CONTEXT);
+ SOKOL_ASSERT(_sapp.android.surface == EGL_NO_SURFACE);
+ SOKOL_ASSERT(window);
+
+ /* TODO: set window flags */
+ /* ANativeActivity_setWindowFlags(activity, AWINDOW_FLAG_KEEP_SCREEN_ON, 0); */
+
+ /* create egl surface and make it current */
+ EGLSurface surface = eglCreateWindowSurface(_sapp.android.display, _sapp.android.config, window, NULL);
+ if (surface == EGL_NO_SURFACE) {
+ return false;
+ }
+ if (eglMakeCurrent(_sapp.android.display, surface, surface, _sapp.android.context) == EGL_FALSE) {
+ return false;
+ }
+ _sapp.android.surface = surface;
+ return true;
+}
+
+_SOKOL_PRIVATE void _sapp_android_cleanup_egl_surface(void) {
+ if (_sapp.android.display == EGL_NO_DISPLAY) {
+ return;
+ }
+ eglMakeCurrent(_sapp.android.display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+ if (_sapp.android.surface != EGL_NO_SURFACE) {
+ eglDestroySurface(_sapp.android.display, _sapp.android.surface);
+ _sapp.android.surface = EGL_NO_SURFACE;
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_android_app_event(sapp_event_type type) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(type);
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_android_update_dimensions(ANativeWindow* window, bool force_update) {
+ SOKOL_ASSERT(_sapp.android.display != EGL_NO_DISPLAY);
+ SOKOL_ASSERT(_sapp.android.context != EGL_NO_CONTEXT);
+ SOKOL_ASSERT(_sapp.android.surface != EGL_NO_SURFACE);
+ SOKOL_ASSERT(window);
+
+ const int32_t win_w = ANativeWindow_getWidth(window);
+ const int32_t win_h = ANativeWindow_getHeight(window);
+ SOKOL_ASSERT(win_w >= 0 && win_h >= 0);
+ const bool win_changed = (win_w != _sapp.window_width) || (win_h != _sapp.window_height);
+ _sapp.window_width = win_w;
+ _sapp.window_height = win_h;
+ if (win_changed || force_update) {
+ if (!_sapp.desc.high_dpi) {
+ const int32_t buf_w = win_w / 2;
+ const int32_t buf_h = win_h / 2;
+ EGLint format;
+ EGLBoolean egl_result = eglGetConfigAttrib(_sapp.android.display, _sapp.android.config, EGL_NATIVE_VISUAL_ID, &format);
+ SOKOL_ASSERT(egl_result == EGL_TRUE); _SOKOL_UNUSED(egl_result);
+ /* NOTE: calling ANativeWindow_setBuffersGeometry() with the same dimensions
+ as the ANativeWindow size results in weird display artefacts, that's
+ why it's only called when the buffer geometry is different from
+ the window size
+ */
+ int32_t result = ANativeWindow_setBuffersGeometry(window, buf_w, buf_h, format);
+ SOKOL_ASSERT(result == 0); _SOKOL_UNUSED(result);
+ }
+ }
+
+ /* query surface size */
+ EGLint fb_w, fb_h;
+ EGLBoolean egl_result_w = eglQuerySurface(_sapp.android.display, _sapp.android.surface, EGL_WIDTH, &fb_w);
+ EGLBoolean egl_result_h = eglQuerySurface(_sapp.android.display, _sapp.android.surface, EGL_HEIGHT, &fb_h);
+ SOKOL_ASSERT(egl_result_w == EGL_TRUE); _SOKOL_UNUSED(egl_result_w);
+ SOKOL_ASSERT(egl_result_h == EGL_TRUE); _SOKOL_UNUSED(egl_result_h);
+ const bool fb_changed = (fb_w != _sapp.framebuffer_width) || (fb_h != _sapp.framebuffer_height);
+ _sapp.framebuffer_width = fb_w;
+ _sapp.framebuffer_height = fb_h;
+ _sapp.dpi_scale = (float)_sapp.framebuffer_width / (float)_sapp.window_width;
+ if (win_changed || fb_changed || force_update) {
+ if (!_sapp.first_frame) {
+ _sapp_android_app_event(SAPP_EVENTTYPE_RESIZED);
+ }
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_android_cleanup(void) {
+ if (_sapp.android.surface != EGL_NO_SURFACE) {
+ /* egl context is bound, cleanup gracefully */
+ if (_sapp.init_called && !_sapp.cleanup_called) {
+ _sapp_call_cleanup();
+ }
+ }
+ /* always try to cleanup by destroying egl context */
+ _sapp_android_cleanup_egl();
+}
+
+_SOKOL_PRIVATE void _sapp_android_shutdown(void) {
+ /* try to cleanup while we still have a surface and can call cleanup_cb() */
+ _sapp_android_cleanup();
+ /* request exit */
+ ANativeActivity_finish(_sapp.android.activity);
+}
+
+_SOKOL_PRIVATE void _sapp_android_frame(void) {
+ SOKOL_ASSERT(_sapp.android.display != EGL_NO_DISPLAY);
+ SOKOL_ASSERT(_sapp.android.context != EGL_NO_CONTEXT);
+ SOKOL_ASSERT(_sapp.android.surface != EGL_NO_SURFACE);
+ _sapp_timing_measure(&_sapp.timing);
+ _sapp_android_update_dimensions(_sapp.android.current.window, false);
+ _sapp_frame();
+ eglSwapBuffers(_sapp.android.display, _sapp.android.surface);
+}
+
+_SOKOL_PRIVATE bool _sapp_android_touch_event(const AInputEvent* e) {
+ if (AInputEvent_getType(e) != AINPUT_EVENT_TYPE_MOTION) {
+ return false;
+ }
+ if (!_sapp_events_enabled()) {
+ return false;
+ }
+ int32_t action_idx = AMotionEvent_getAction(e);
+ int32_t action = action_idx & AMOTION_EVENT_ACTION_MASK;
+ sapp_event_type type = SAPP_EVENTTYPE_INVALID;
+ switch (action) {
+ case AMOTION_EVENT_ACTION_DOWN:
+ case AMOTION_EVENT_ACTION_POINTER_DOWN:
+ type = SAPP_EVENTTYPE_TOUCHES_BEGAN;
+ break;
+ case AMOTION_EVENT_ACTION_MOVE:
+ type = SAPP_EVENTTYPE_TOUCHES_MOVED;
+ break;
+ case AMOTION_EVENT_ACTION_UP:
+ case AMOTION_EVENT_ACTION_POINTER_UP:
+ type = SAPP_EVENTTYPE_TOUCHES_ENDED;
+ break;
+ case AMOTION_EVENT_ACTION_CANCEL:
+ type = SAPP_EVENTTYPE_TOUCHES_CANCELLED;
+ break;
+ default:
+ break;
+ }
+ if (type == SAPP_EVENTTYPE_INVALID) {
+ return false;
+ }
+ int32_t idx = action_idx >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
+ _sapp_init_event(type);
+ _sapp.event.num_touches = (int)AMotionEvent_getPointerCount(e);
+ if (_sapp.event.num_touches > SAPP_MAX_TOUCHPOINTS) {
+ _sapp.event.num_touches = SAPP_MAX_TOUCHPOINTS;
+ }
+ for (int32_t i = 0; i < _sapp.event.num_touches; i++) {
+ sapp_touchpoint* dst = &_sapp.event.touches[i];
+ dst->identifier = (uintptr_t)AMotionEvent_getPointerId(e, (size_t)i);
+ dst->pos_x = (AMotionEvent_getRawX(e, (size_t)i) / _sapp.window_width) * _sapp.framebuffer_width;
+ dst->pos_y = (AMotionEvent_getRawY(e, (size_t)i) / _sapp.window_height) * _sapp.framebuffer_height;
+ dst->android_tooltype = (sapp_android_tooltype) AMotionEvent_getToolType(e, (size_t)i);
+ if (action == AMOTION_EVENT_ACTION_POINTER_DOWN ||
+ action == AMOTION_EVENT_ACTION_POINTER_UP) {
+ dst->changed = (i == idx);
+ } else {
+ dst->changed = true;
+ }
+ }
+ _sapp_call_event(&_sapp.event);
+ return true;
+}
+
+_SOKOL_PRIVATE bool _sapp_android_key_event(const AInputEvent* e) {
+ if (AInputEvent_getType(e) != AINPUT_EVENT_TYPE_KEY) {
+ return false;
+ }
+ if (AKeyEvent_getKeyCode(e) == AKEYCODE_BACK) {
+ /* FIXME: this should be hooked into a "really quit?" mechanism
+ so the app can ask the user for confirmation, this is currently
+ generally missing in sokol_app.h
+ */
+ _sapp_android_shutdown();
+ return true;
+ }
+ return false;
+}
+
+_SOKOL_PRIVATE int _sapp_android_input_cb(int fd, int events, void* data) {
+ _SOKOL_UNUSED(fd);
+ _SOKOL_UNUSED(data);
+ if ((events & ALOOPER_EVENT_INPUT) == 0) {
+ _SAPP_ERROR(ANDROID_UNSUPPORTED_INPUT_EVENT_INPUT_CB);
+ return 1;
+ }
+ SOKOL_ASSERT(_sapp.android.current.input);
+ AInputEvent* event = NULL;
+ while (AInputQueue_getEvent(_sapp.android.current.input, &event) >= 0) {
+ if (AInputQueue_preDispatchEvent(_sapp.android.current.input, event) != 0) {
+ continue;
+ }
+ int32_t handled = 0;
+ if (_sapp_android_touch_event(event) || _sapp_android_key_event(event)) {
+ handled = 1;
+ }
+ AInputQueue_finishEvent(_sapp.android.current.input, event, handled);
+ }
+ return 1;
+}
+
+_SOKOL_PRIVATE int _sapp_android_main_cb(int fd, int events, void* data) {
+ _SOKOL_UNUSED(data);
+ if ((events & ALOOPER_EVENT_INPUT) == 0) {
+ _SAPP_ERROR(ANDROID_UNSUPPORTED_INPUT_EVENT_MAIN_CB);
+ return 1;
+ }
+
+ _sapp_android_msg_t msg;
+ if (read(fd, &msg, sizeof(msg)) != sizeof(msg)) {
+ _SAPP_ERROR(ANDROID_READ_MSG_FAILED);
+ return 1;
+ }
+
+ pthread_mutex_lock(&_sapp.android.pt.mutex);
+ switch (msg) {
+ case _SOKOL_ANDROID_MSG_CREATE:
+ {
+ _SAPP_INFO(ANDROID_MSG_CREATE);
+ SOKOL_ASSERT(!_sapp.valid);
+ bool result = _sapp_android_init_egl();
+ SOKOL_ASSERT(result); _SOKOL_UNUSED(result);
+ _sapp.valid = true;
+ _sapp.android.has_created = true;
+ }
+ break;
+ case _SOKOL_ANDROID_MSG_RESUME:
+ _SAPP_INFO(ANDROID_MSG_RESUME);
+ _sapp.android.has_resumed = true;
+ _sapp_android_app_event(SAPP_EVENTTYPE_RESUMED);
+ break;
+ case _SOKOL_ANDROID_MSG_PAUSE:
+ _SAPP_INFO(ANDROID_MSG_PAUSE);
+ _sapp.android.has_resumed = false;
+ _sapp_android_app_event(SAPP_EVENTTYPE_SUSPENDED);
+ break;
+ case _SOKOL_ANDROID_MSG_FOCUS:
+ _SAPP_INFO(ANDROID_MSG_FOCUS);
+ _sapp.android.has_focus = true;
+ break;
+ case _SOKOL_ANDROID_MSG_NO_FOCUS:
+ _SAPP_INFO(ANDROID_MSG_NO_FOCUS);
+ _sapp.android.has_focus = false;
+ break;
+ case _SOKOL_ANDROID_MSG_SET_NATIVE_WINDOW:
+ _SAPP_INFO(ANDROID_MSG_SET_NATIVE_WINDOW);
+ if (_sapp.android.current.window != _sapp.android.pending.window) {
+ if (_sapp.android.current.window != NULL) {
+ _sapp_android_cleanup_egl_surface();
+ }
+ if (_sapp.android.pending.window != NULL) {
+ if (_sapp_android_init_egl_surface(_sapp.android.pending.window)) {
+ _sapp_android_update_dimensions(_sapp.android.pending.window, true);
+ } else {
+ _sapp_android_shutdown();
+ }
+ }
+ }
+ _sapp.android.current.window = _sapp.android.pending.window;
+ break;
+ case _SOKOL_ANDROID_MSG_SET_INPUT_QUEUE:
+ _SAPP_INFO(ANDROID_MSG_SET_INPUT_QUEUE);
+ if (_sapp.android.current.input != _sapp.android.pending.input) {
+ if (_sapp.android.current.input != NULL) {
+ AInputQueue_detachLooper(_sapp.android.current.input);
+ }
+ if (_sapp.android.pending.input != NULL) {
+ AInputQueue_attachLooper(
+ _sapp.android.pending.input,
+ _sapp.android.looper,
+ ALOOPER_POLL_CALLBACK,
+ _sapp_android_input_cb,
+ NULL); /* data */
+ }
+ }
+ _sapp.android.current.input = _sapp.android.pending.input;
+ break;
+ case _SOKOL_ANDROID_MSG_DESTROY:
+ _SAPP_INFO(ANDROID_MSG_DESTROY);
+ _sapp_android_cleanup();
+ _sapp.valid = false;
+ _sapp.android.is_thread_stopping = true;
+ break;
+ default:
+ _SAPP_WARN(ANDROID_UNKNOWN_MSG);
+ break;
+ }
+ pthread_cond_broadcast(&_sapp.android.pt.cond); /* signal "received" */
+ pthread_mutex_unlock(&_sapp.android.pt.mutex);
+ return 1;
+}
+
+_SOKOL_PRIVATE bool _sapp_android_should_update(void) {
+ bool is_in_front = _sapp.android.has_resumed && _sapp.android.has_focus;
+ bool has_surface = _sapp.android.surface != EGL_NO_SURFACE;
+ return is_in_front && has_surface;
+}
+
+_SOKOL_PRIVATE void _sapp_android_show_keyboard(bool shown) {
+ SOKOL_ASSERT(_sapp.valid);
+ /* This seems to be broken in the NDK, but there is (a very cumbersome) workaround... */
+ if (shown) {
+ ANativeActivity_showSoftInput(_sapp.android.activity, ANATIVEACTIVITY_SHOW_SOFT_INPUT_FORCED);
+ } else {
+ ANativeActivity_hideSoftInput(_sapp.android.activity, ANATIVEACTIVITY_HIDE_SOFT_INPUT_NOT_ALWAYS);
+ }
+}
+
+_SOKOL_PRIVATE void* _sapp_android_loop(void* arg) {
+ _SOKOL_UNUSED(arg);
+ _SAPP_INFO(ANDROID_LOOP_THREAD_STARTED);
+
+ _sapp.android.looper = ALooper_prepare(0 /* or ALOOPER_PREPARE_ALLOW_NON_CALLBACKS*/);
+ ALooper_addFd(_sapp.android.looper,
+ _sapp.android.pt.read_from_main_fd,
+ ALOOPER_POLL_CALLBACK,
+ ALOOPER_EVENT_INPUT,
+ _sapp_android_main_cb,
+ NULL); /* data */
+
+ /* signal start to main thread */
+ pthread_mutex_lock(&_sapp.android.pt.mutex);
+ _sapp.android.is_thread_started = true;
+ pthread_cond_broadcast(&_sapp.android.pt.cond);
+ pthread_mutex_unlock(&_sapp.android.pt.mutex);
+
+ /* main loop */
+ while (!_sapp.android.is_thread_stopping) {
+ /* sokol frame */
+ if (_sapp_android_should_update()) {
+ _sapp_android_frame();
+ }
+
+ /* process all events (or stop early if app is requested to quit) */
+ bool process_events = true;
+ while (process_events && !_sapp.android.is_thread_stopping) {
+ bool block_until_event = !_sapp.android.is_thread_stopping && !_sapp_android_should_update();
+ process_events = ALooper_pollOnce(block_until_event ? -1 : 0, NULL, NULL, NULL) == ALOOPER_POLL_CALLBACK;
+ }
+ }
+
+ /* cleanup thread */
+ if (_sapp.android.current.input != NULL) {
+ AInputQueue_detachLooper(_sapp.android.current.input);
+ }
+
+ /* the following causes heap corruption on exit, why??
+ ALooper_removeFd(_sapp.android.looper, _sapp.android.pt.read_from_main_fd);
+ ALooper_release(_sapp.android.looper);*/
+
+ /* signal "destroyed" */
+ pthread_mutex_lock(&_sapp.android.pt.mutex);
+ _sapp.android.is_thread_stopped = true;
+ pthread_cond_broadcast(&_sapp.android.pt.cond);
+ pthread_mutex_unlock(&_sapp.android.pt.mutex);
+
+ _SAPP_INFO(ANDROID_LOOP_THREAD_DONE);
+ return NULL;
+}
+
+/* android main/ui thread */
+_SOKOL_PRIVATE void _sapp_android_msg(_sapp_android_msg_t msg) {
+ if (write(_sapp.android.pt.write_from_main_fd, &msg, sizeof(msg)) != sizeof(msg)) {
+ _SAPP_ERROR(ANDROID_WRITE_MSG_FAILED);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_android_on_start(ANativeActivity* activity) {
+ _SOKOL_UNUSED(activity);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONSTART);
+}
+
+_SOKOL_PRIVATE void _sapp_android_on_resume(ANativeActivity* activity) {
+ _SOKOL_UNUSED(activity);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONRESUME);
+ _sapp_android_msg(_SOKOL_ANDROID_MSG_RESUME);
+}
+
+_SOKOL_PRIVATE void* _sapp_android_on_save_instance_state(ANativeActivity* activity, size_t* out_size) {
+ _SOKOL_UNUSED(activity);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONSAVEINSTANCESTATE);
+ *out_size = 0;
+ return NULL;
+}
+
+_SOKOL_PRIVATE void _sapp_android_on_window_focus_changed(ANativeActivity* activity, int has_focus) {
+ _SOKOL_UNUSED(activity);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONWINDOWFOCUSCHANGED);
+ if (has_focus) {
+ _sapp_android_msg(_SOKOL_ANDROID_MSG_FOCUS);
+ } else {
+ _sapp_android_msg(_SOKOL_ANDROID_MSG_NO_FOCUS);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_android_on_pause(ANativeActivity* activity) {
+ _SOKOL_UNUSED(activity);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONPAUSE);
+ _sapp_android_msg(_SOKOL_ANDROID_MSG_PAUSE);
+}
+
+_SOKOL_PRIVATE void _sapp_android_on_stop(ANativeActivity* activity) {
+ _SOKOL_UNUSED(activity);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONSTOP);
+}
+
+_SOKOL_PRIVATE void _sapp_android_msg_set_native_window(ANativeWindow* window) {
+ pthread_mutex_lock(&_sapp.android.pt.mutex);
+ _sapp.android.pending.window = window;
+ _sapp_android_msg(_SOKOL_ANDROID_MSG_SET_NATIVE_WINDOW);
+ while (_sapp.android.current.window != window) {
+ pthread_cond_wait(&_sapp.android.pt.cond, &_sapp.android.pt.mutex);
+ }
+ pthread_mutex_unlock(&_sapp.android.pt.mutex);
+}
+
+_SOKOL_PRIVATE void _sapp_android_on_native_window_created(ANativeActivity* activity, ANativeWindow* window) {
+ _SOKOL_UNUSED(activity);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONNATIVEWINDOWCREATED);
+ _sapp_android_msg_set_native_window(window);
+}
+
+_SOKOL_PRIVATE void _sapp_android_on_native_window_destroyed(ANativeActivity* activity, ANativeWindow* window) {
+ _SOKOL_UNUSED(activity);
+ _SOKOL_UNUSED(window);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONNATIVEWINDOWDESTROYED);
+ _sapp_android_msg_set_native_window(NULL);
+}
+
+_SOKOL_PRIVATE void _sapp_android_msg_set_input_queue(AInputQueue* input) {
+ pthread_mutex_lock(&_sapp.android.pt.mutex);
+ _sapp.android.pending.input = input;
+ _sapp_android_msg(_SOKOL_ANDROID_MSG_SET_INPUT_QUEUE);
+ while (_sapp.android.current.input != input) {
+ pthread_cond_wait(&_sapp.android.pt.cond, &_sapp.android.pt.mutex);
+ }
+ pthread_mutex_unlock(&_sapp.android.pt.mutex);
+}
+
+_SOKOL_PRIVATE void _sapp_android_on_input_queue_created(ANativeActivity* activity, AInputQueue* queue) {
+ _SOKOL_UNUSED(activity);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONINPUTQUEUECREATED);
+ _sapp_android_msg_set_input_queue(queue);
+}
+
+_SOKOL_PRIVATE void _sapp_android_on_input_queue_destroyed(ANativeActivity* activity, AInputQueue* queue) {
+ _SOKOL_UNUSED(activity);
+ _SOKOL_UNUSED(queue);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONINPUTQUEUEDESTROYED);
+ _sapp_android_msg_set_input_queue(NULL);
+}
+
+_SOKOL_PRIVATE void _sapp_android_on_config_changed(ANativeActivity* activity) {
+ _SOKOL_UNUSED(activity);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONCONFIGURATIONCHANGED);
+ /* see android:configChanges in manifest */
+}
+
+_SOKOL_PRIVATE void _sapp_android_on_low_memory(ANativeActivity* activity) {
+ _SOKOL_UNUSED(activity);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONLOWMEMORY);
+}
+
+_SOKOL_PRIVATE void _sapp_android_on_destroy(ANativeActivity* activity) {
+ /*
+ * For some reason even an empty app using nativeactivity.h will crash (WIN DEATH)
+ * on my device (Moto X 2nd gen) when the app is removed from the task view
+ * (TaskStackView: onTaskViewDismissed).
+ *
+ * However, if ANativeActivity_finish() is explicitly called from for example
+ * _sapp_android_on_stop(), the crash disappears. Is this a bug in NativeActivity?
+ */
+ _SOKOL_UNUSED(activity);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONDESTROY);
+
+ /* send destroy msg */
+ pthread_mutex_lock(&_sapp.android.pt.mutex);
+ _sapp_android_msg(_SOKOL_ANDROID_MSG_DESTROY);
+ while (!_sapp.android.is_thread_stopped) {
+ pthread_cond_wait(&_sapp.android.pt.cond, &_sapp.android.pt.mutex);
+ }
+ pthread_mutex_unlock(&_sapp.android.pt.mutex);
+
+ /* clean up main thread */
+ pthread_cond_destroy(&_sapp.android.pt.cond);
+ pthread_mutex_destroy(&_sapp.android.pt.mutex);
+
+ close(_sapp.android.pt.read_from_main_fd);
+ close(_sapp.android.pt.write_from_main_fd);
+
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_DONE);
+
+ /* this is a bit naughty, but causes a clean restart of the app (static globals are reset) */
+ exit(0);
+}
+
+JNIEXPORT
+void ANativeActivity_onCreate(ANativeActivity* activity, void* saved_state, size_t saved_state_size) {
+ _SOKOL_UNUSED(saved_state);
+ _SOKOL_UNUSED(saved_state_size);
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_ONCREATE);
+
+ // the NativeActity pointer needs to be available inside sokol_main()
+ // (see https://github.com/floooh/sokol/issues/708), however _sapp_init_state()
+ // will clear the global _sapp_t struct, so we need to initialize the native
+ // activity pointer twice, once before sokol_main() and once after _sapp_init_state()
+ _sapp_clear(&_sapp, sizeof(_sapp));
+ _sapp.android.activity = activity;
+ sapp_desc desc = sokol_main(0, NULL);
+ _sapp_init_state(&desc);
+ _sapp.android.activity = activity;
+
+ int pipe_fd[2];
+ if (pipe(pipe_fd) != 0) {
+ _SAPP_ERROR(ANDROID_CREATE_THREAD_PIPE_FAILED);
+ return;
+ }
+ _sapp.android.pt.read_from_main_fd = pipe_fd[0];
+ _sapp.android.pt.write_from_main_fd = pipe_fd[1];
+
+ pthread_mutex_init(&_sapp.android.pt.mutex, NULL);
+ pthread_cond_init(&_sapp.android.pt.cond, NULL);
+
+ pthread_attr_t attr;
+ pthread_attr_init(&attr);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+ pthread_create(&_sapp.android.pt.thread, &attr, _sapp_android_loop, 0);
+ pthread_attr_destroy(&attr);
+
+ /* wait until main loop has started */
+ pthread_mutex_lock(&_sapp.android.pt.mutex);
+ while (!_sapp.android.is_thread_started) {
+ pthread_cond_wait(&_sapp.android.pt.cond, &_sapp.android.pt.mutex);
+ }
+ pthread_mutex_unlock(&_sapp.android.pt.mutex);
+
+ /* send create msg */
+ pthread_mutex_lock(&_sapp.android.pt.mutex);
+ _sapp_android_msg(_SOKOL_ANDROID_MSG_CREATE);
+ while (!_sapp.android.has_created) {
+ pthread_cond_wait(&_sapp.android.pt.cond, &_sapp.android.pt.mutex);
+ }
+ pthread_mutex_unlock(&_sapp.android.pt.mutex);
+
+ /* register for callbacks */
+ activity->callbacks->onStart = _sapp_android_on_start;
+ activity->callbacks->onResume = _sapp_android_on_resume;
+ activity->callbacks->onSaveInstanceState = _sapp_android_on_save_instance_state;
+ activity->callbacks->onWindowFocusChanged = _sapp_android_on_window_focus_changed;
+ activity->callbacks->onPause = _sapp_android_on_pause;
+ activity->callbacks->onStop = _sapp_android_on_stop;
+ activity->callbacks->onDestroy = _sapp_android_on_destroy;
+ activity->callbacks->onNativeWindowCreated = _sapp_android_on_native_window_created;
+ /* activity->callbacks->onNativeWindowResized = _sapp_android_on_native_window_resized; */
+ /* activity->callbacks->onNativeWindowRedrawNeeded = _sapp_android_on_native_window_redraw_needed; */
+ activity->callbacks->onNativeWindowDestroyed = _sapp_android_on_native_window_destroyed;
+ activity->callbacks->onInputQueueCreated = _sapp_android_on_input_queue_created;
+ activity->callbacks->onInputQueueDestroyed = _sapp_android_on_input_queue_destroyed;
+ /* activity->callbacks->onContentRectChanged = _sapp_android_on_content_rect_changed; */
+ activity->callbacks->onConfigurationChanged = _sapp_android_on_config_changed;
+ activity->callbacks->onLowMemory = _sapp_android_on_low_memory;
+
+ _SAPP_INFO(ANDROID_NATIVE_ACTIVITY_CREATE_SUCCESS);
+
+ /* NOT A BUG: do NOT call sapp_discard_state() */
+}
+
+#endif /* _SAPP_ANDROID */
+
+// ██ ██ ███ ██ ██ ██ ██ ██
+// ██ ██ ████ ██ ██ ██ ██ ██
+// ██ ██ ██ ██ ██ ██ ██ ███
+// ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ███████ ██ ██ ████ ██████ ██ ██
+//
+// >>linux
+#if defined(_SAPP_LINUX)
+
+/* see GLFW's xkb_unicode.c */
+static const struct _sapp_x11_codepair {
+ uint16_t keysym;
+ uint16_t ucs;
+} _sapp_x11_keysymtab[] = {
+ { 0x01a1, 0x0104 },
+ { 0x01a2, 0x02d8 },
+ { 0x01a3, 0x0141 },
+ { 0x01a5, 0x013d },
+ { 0x01a6, 0x015a },
+ { 0x01a9, 0x0160 },
+ { 0x01aa, 0x015e },
+ { 0x01ab, 0x0164 },
+ { 0x01ac, 0x0179 },
+ { 0x01ae, 0x017d },
+ { 0x01af, 0x017b },
+ { 0x01b1, 0x0105 },
+ { 0x01b2, 0x02db },
+ { 0x01b3, 0x0142 },
+ { 0x01b5, 0x013e },
+ { 0x01b6, 0x015b },
+ { 0x01b7, 0x02c7 },
+ { 0x01b9, 0x0161 },
+ { 0x01ba, 0x015f },
+ { 0x01bb, 0x0165 },
+ { 0x01bc, 0x017a },
+ { 0x01bd, 0x02dd },
+ { 0x01be, 0x017e },
+ { 0x01bf, 0x017c },
+ { 0x01c0, 0x0154 },
+ { 0x01c3, 0x0102 },
+ { 0x01c5, 0x0139 },
+ { 0x01c6, 0x0106 },
+ { 0x01c8, 0x010c },
+ { 0x01ca, 0x0118 },
+ { 0x01cc, 0x011a },
+ { 0x01cf, 0x010e },
+ { 0x01d0, 0x0110 },
+ { 0x01d1, 0x0143 },
+ { 0x01d2, 0x0147 },
+ { 0x01d5, 0x0150 },
+ { 0x01d8, 0x0158 },
+ { 0x01d9, 0x016e },
+ { 0x01db, 0x0170 },
+ { 0x01de, 0x0162 },
+ { 0x01e0, 0x0155 },
+ { 0x01e3, 0x0103 },
+ { 0x01e5, 0x013a },
+ { 0x01e6, 0x0107 },
+ { 0x01e8, 0x010d },
+ { 0x01ea, 0x0119 },
+ { 0x01ec, 0x011b },
+ { 0x01ef, 0x010f },
+ { 0x01f0, 0x0111 },
+ { 0x01f1, 0x0144 },
+ { 0x01f2, 0x0148 },
+ { 0x01f5, 0x0151 },
+ { 0x01f8, 0x0159 },
+ { 0x01f9, 0x016f },
+ { 0x01fb, 0x0171 },
+ { 0x01fe, 0x0163 },
+ { 0x01ff, 0x02d9 },
+ { 0x02a1, 0x0126 },
+ { 0x02a6, 0x0124 },
+ { 0x02a9, 0x0130 },
+ { 0x02ab, 0x011e },
+ { 0x02ac, 0x0134 },
+ { 0x02b1, 0x0127 },
+ { 0x02b6, 0x0125 },
+ { 0x02b9, 0x0131 },
+ { 0x02bb, 0x011f },
+ { 0x02bc, 0x0135 },
+ { 0x02c5, 0x010a },
+ { 0x02c6, 0x0108 },
+ { 0x02d5, 0x0120 },
+ { 0x02d8, 0x011c },
+ { 0x02dd, 0x016c },
+ { 0x02de, 0x015c },
+ { 0x02e5, 0x010b },
+ { 0x02e6, 0x0109 },
+ { 0x02f5, 0x0121 },
+ { 0x02f8, 0x011d },
+ { 0x02fd, 0x016d },
+ { 0x02fe, 0x015d },
+ { 0x03a2, 0x0138 },
+ { 0x03a3, 0x0156 },
+ { 0x03a5, 0x0128 },
+ { 0x03a6, 0x013b },
+ { 0x03aa, 0x0112 },
+ { 0x03ab, 0x0122 },
+ { 0x03ac, 0x0166 },
+ { 0x03b3, 0x0157 },
+ { 0x03b5, 0x0129 },
+ { 0x03b6, 0x013c },
+ { 0x03ba, 0x0113 },
+ { 0x03bb, 0x0123 },
+ { 0x03bc, 0x0167 },
+ { 0x03bd, 0x014a },
+ { 0x03bf, 0x014b },
+ { 0x03c0, 0x0100 },
+ { 0x03c7, 0x012e },
+ { 0x03cc, 0x0116 },
+ { 0x03cf, 0x012a },
+ { 0x03d1, 0x0145 },
+ { 0x03d2, 0x014c },
+ { 0x03d3, 0x0136 },
+ { 0x03d9, 0x0172 },
+ { 0x03dd, 0x0168 },
+ { 0x03de, 0x016a },
+ { 0x03e0, 0x0101 },
+ { 0x03e7, 0x012f },
+ { 0x03ec, 0x0117 },
+ { 0x03ef, 0x012b },
+ { 0x03f1, 0x0146 },
+ { 0x03f2, 0x014d },
+ { 0x03f3, 0x0137 },
+ { 0x03f9, 0x0173 },
+ { 0x03fd, 0x0169 },
+ { 0x03fe, 0x016b },
+ { 0x047e, 0x203e },
+ { 0x04a1, 0x3002 },
+ { 0x04a2, 0x300c },
+ { 0x04a3, 0x300d },
+ { 0x04a4, 0x3001 },
+ { 0x04a5, 0x30fb },
+ { 0x04a6, 0x30f2 },
+ { 0x04a7, 0x30a1 },
+ { 0x04a8, 0x30a3 },
+ { 0x04a9, 0x30a5 },
+ { 0x04aa, 0x30a7 },
+ { 0x04ab, 0x30a9 },
+ { 0x04ac, 0x30e3 },
+ { 0x04ad, 0x30e5 },
+ { 0x04ae, 0x30e7 },
+ { 0x04af, 0x30c3 },
+ { 0x04b0, 0x30fc },
+ { 0x04b1, 0x30a2 },
+ { 0x04b2, 0x30a4 },
+ { 0x04b3, 0x30a6 },
+ { 0x04b4, 0x30a8 },
+ { 0x04b5, 0x30aa },
+ { 0x04b6, 0x30ab },
+ { 0x04b7, 0x30ad },
+ { 0x04b8, 0x30af },
+ { 0x04b9, 0x30b1 },
+ { 0x04ba, 0x30b3 },
+ { 0x04bb, 0x30b5 },
+ { 0x04bc, 0x30b7 },
+ { 0x04bd, 0x30b9 },
+ { 0x04be, 0x30bb },
+ { 0x04bf, 0x30bd },
+ { 0x04c0, 0x30bf },
+ { 0x04c1, 0x30c1 },
+ { 0x04c2, 0x30c4 },
+ { 0x04c3, 0x30c6 },
+ { 0x04c4, 0x30c8 },
+ { 0x04c5, 0x30ca },
+ { 0x04c6, 0x30cb },
+ { 0x04c7, 0x30cc },
+ { 0x04c8, 0x30cd },
+ { 0x04c9, 0x30ce },
+ { 0x04ca, 0x30cf },
+ { 0x04cb, 0x30d2 },
+ { 0x04cc, 0x30d5 },
+ { 0x04cd, 0x30d8 },
+ { 0x04ce, 0x30db },
+ { 0x04cf, 0x30de },
+ { 0x04d0, 0x30df },
+ { 0x04d1, 0x30e0 },
+ { 0x04d2, 0x30e1 },
+ { 0x04d3, 0x30e2 },
+ { 0x04d4, 0x30e4 },
+ { 0x04d5, 0x30e6 },
+ { 0x04d6, 0x30e8 },
+ { 0x04d7, 0x30e9 },
+ { 0x04d8, 0x30ea },
+ { 0x04d9, 0x30eb },
+ { 0x04da, 0x30ec },
+ { 0x04db, 0x30ed },
+ { 0x04dc, 0x30ef },
+ { 0x04dd, 0x30f3 },
+ { 0x04de, 0x309b },
+ { 0x04df, 0x309c },
+ { 0x05ac, 0x060c },
+ { 0x05bb, 0x061b },
+ { 0x05bf, 0x061f },
+ { 0x05c1, 0x0621 },
+ { 0x05c2, 0x0622 },
+ { 0x05c3, 0x0623 },
+ { 0x05c4, 0x0624 },
+ { 0x05c5, 0x0625 },
+ { 0x05c6, 0x0626 },
+ { 0x05c7, 0x0627 },
+ { 0x05c8, 0x0628 },
+ { 0x05c9, 0x0629 },
+ { 0x05ca, 0x062a },
+ { 0x05cb, 0x062b },
+ { 0x05cc, 0x062c },
+ { 0x05cd, 0x062d },
+ { 0x05ce, 0x062e },
+ { 0x05cf, 0x062f },
+ { 0x05d0, 0x0630 },
+ { 0x05d1, 0x0631 },
+ { 0x05d2, 0x0632 },
+ { 0x05d3, 0x0633 },
+ { 0x05d4, 0x0634 },
+ { 0x05d5, 0x0635 },
+ { 0x05d6, 0x0636 },
+ { 0x05d7, 0x0637 },
+ { 0x05d8, 0x0638 },
+ { 0x05d9, 0x0639 },
+ { 0x05da, 0x063a },
+ { 0x05e0, 0x0640 },
+ { 0x05e1, 0x0641 },
+ { 0x05e2, 0x0642 },
+ { 0x05e3, 0x0643 },
+ { 0x05e4, 0x0644 },
+ { 0x05e5, 0x0645 },
+ { 0x05e6, 0x0646 },
+ { 0x05e7, 0x0647 },
+ { 0x05e8, 0x0648 },
+ { 0x05e9, 0x0649 },
+ { 0x05ea, 0x064a },
+ { 0x05eb, 0x064b },
+ { 0x05ec, 0x064c },
+ { 0x05ed, 0x064d },
+ { 0x05ee, 0x064e },
+ { 0x05ef, 0x064f },
+ { 0x05f0, 0x0650 },
+ { 0x05f1, 0x0651 },
+ { 0x05f2, 0x0652 },
+ { 0x06a1, 0x0452 },
+ { 0x06a2, 0x0453 },
+ { 0x06a3, 0x0451 },
+ { 0x06a4, 0x0454 },
+ { 0x06a5, 0x0455 },
+ { 0x06a6, 0x0456 },
+ { 0x06a7, 0x0457 },
+ { 0x06a8, 0x0458 },
+ { 0x06a9, 0x0459 },
+ { 0x06aa, 0x045a },
+ { 0x06ab, 0x045b },
+ { 0x06ac, 0x045c },
+ { 0x06ae, 0x045e },
+ { 0x06af, 0x045f },
+ { 0x06b0, 0x2116 },
+ { 0x06b1, 0x0402 },
+ { 0x06b2, 0x0403 },
+ { 0x06b3, 0x0401 },
+ { 0x06b4, 0x0404 },
+ { 0x06b5, 0x0405 },
+ { 0x06b6, 0x0406 },
+ { 0x06b7, 0x0407 },
+ { 0x06b8, 0x0408 },
+ { 0x06b9, 0x0409 },
+ { 0x06ba, 0x040a },
+ { 0x06bb, 0x040b },
+ { 0x06bc, 0x040c },
+ { 0x06be, 0x040e },
+ { 0x06bf, 0x040f },
+ { 0x06c0, 0x044e },
+ { 0x06c1, 0x0430 },
+ { 0x06c2, 0x0431 },
+ { 0x06c3, 0x0446 },
+ { 0x06c4, 0x0434 },
+ { 0x06c5, 0x0435 },
+ { 0x06c6, 0x0444 },
+ { 0x06c7, 0x0433 },
+ { 0x06c8, 0x0445 },
+ { 0x06c9, 0x0438 },
+ { 0x06ca, 0x0439 },
+ { 0x06cb, 0x043a },
+ { 0x06cc, 0x043b },
+ { 0x06cd, 0x043c },
+ { 0x06ce, 0x043d },
+ { 0x06cf, 0x043e },
+ { 0x06d0, 0x043f },
+ { 0x06d1, 0x044f },
+ { 0x06d2, 0x0440 },
+ { 0x06d3, 0x0441 },
+ { 0x06d4, 0x0442 },
+ { 0x06d5, 0x0443 },
+ { 0x06d6, 0x0436 },
+ { 0x06d7, 0x0432 },
+ { 0x06d8, 0x044c },
+ { 0x06d9, 0x044b },
+ { 0x06da, 0x0437 },
+ { 0x06db, 0x0448 },
+ { 0x06dc, 0x044d },
+ { 0x06dd, 0x0449 },
+ { 0x06de, 0x0447 },
+ { 0x06df, 0x044a },
+ { 0x06e0, 0x042e },
+ { 0x06e1, 0x0410 },
+ { 0x06e2, 0x0411 },
+ { 0x06e3, 0x0426 },
+ { 0x06e4, 0x0414 },
+ { 0x06e5, 0x0415 },
+ { 0x06e6, 0x0424 },
+ { 0x06e7, 0x0413 },
+ { 0x06e8, 0x0425 },
+ { 0x06e9, 0x0418 },
+ { 0x06ea, 0x0419 },
+ { 0x06eb, 0x041a },
+ { 0x06ec, 0x041b },
+ { 0x06ed, 0x041c },
+ { 0x06ee, 0x041d },
+ { 0x06ef, 0x041e },
+ { 0x06f0, 0x041f },
+ { 0x06f1, 0x042f },
+ { 0x06f2, 0x0420 },
+ { 0x06f3, 0x0421 },
+ { 0x06f4, 0x0422 },
+ { 0x06f5, 0x0423 },
+ { 0x06f6, 0x0416 },
+ { 0x06f7, 0x0412 },
+ { 0x06f8, 0x042c },
+ { 0x06f9, 0x042b },
+ { 0x06fa, 0x0417 },
+ { 0x06fb, 0x0428 },
+ { 0x06fc, 0x042d },
+ { 0x06fd, 0x0429 },
+ { 0x06fe, 0x0427 },
+ { 0x06ff, 0x042a },
+ { 0x07a1, 0x0386 },
+ { 0x07a2, 0x0388 },
+ { 0x07a3, 0x0389 },
+ { 0x07a4, 0x038a },
+ { 0x07a5, 0x03aa },
+ { 0x07a7, 0x038c },
+ { 0x07a8, 0x038e },
+ { 0x07a9, 0x03ab },
+ { 0x07ab, 0x038f },
+ { 0x07ae, 0x0385 },
+ { 0x07af, 0x2015 },
+ { 0x07b1, 0x03ac },
+ { 0x07b2, 0x03ad },
+ { 0x07b3, 0x03ae },
+ { 0x07b4, 0x03af },
+ { 0x07b5, 0x03ca },
+ { 0x07b6, 0x0390 },
+ { 0x07b7, 0x03cc },
+ { 0x07b8, 0x03cd },
+ { 0x07b9, 0x03cb },
+ { 0x07ba, 0x03b0 },
+ { 0x07bb, 0x03ce },
+ { 0x07c1, 0x0391 },
+ { 0x07c2, 0x0392 },
+ { 0x07c3, 0x0393 },
+ { 0x07c4, 0x0394 },
+ { 0x07c5, 0x0395 },
+ { 0x07c6, 0x0396 },
+ { 0x07c7, 0x0397 },
+ { 0x07c8, 0x0398 },
+ { 0x07c9, 0x0399 },
+ { 0x07ca, 0x039a },
+ { 0x07cb, 0x039b },
+ { 0x07cc, 0x039c },
+ { 0x07cd, 0x039d },
+ { 0x07ce, 0x039e },
+ { 0x07cf, 0x039f },
+ { 0x07d0, 0x03a0 },
+ { 0x07d1, 0x03a1 },
+ { 0x07d2, 0x03a3 },
+ { 0x07d4, 0x03a4 },
+ { 0x07d5, 0x03a5 },
+ { 0x07d6, 0x03a6 },
+ { 0x07d7, 0x03a7 },
+ { 0x07d8, 0x03a8 },
+ { 0x07d9, 0x03a9 },
+ { 0x07e1, 0x03b1 },
+ { 0x07e2, 0x03b2 },
+ { 0x07e3, 0x03b3 },
+ { 0x07e4, 0x03b4 },
+ { 0x07e5, 0x03b5 },
+ { 0x07e6, 0x03b6 },
+ { 0x07e7, 0x03b7 },
+ { 0x07e8, 0x03b8 },
+ { 0x07e9, 0x03b9 },
+ { 0x07ea, 0x03ba },
+ { 0x07eb, 0x03bb },
+ { 0x07ec, 0x03bc },
+ { 0x07ed, 0x03bd },
+ { 0x07ee, 0x03be },
+ { 0x07ef, 0x03bf },
+ { 0x07f0, 0x03c0 },
+ { 0x07f1, 0x03c1 },
+ { 0x07f2, 0x03c3 },
+ { 0x07f3, 0x03c2 },
+ { 0x07f4, 0x03c4 },
+ { 0x07f5, 0x03c5 },
+ { 0x07f6, 0x03c6 },
+ { 0x07f7, 0x03c7 },
+ { 0x07f8, 0x03c8 },
+ { 0x07f9, 0x03c9 },
+ { 0x08a1, 0x23b7 },
+ { 0x08a2, 0x250c },
+ { 0x08a3, 0x2500 },
+ { 0x08a4, 0x2320 },
+ { 0x08a5, 0x2321 },
+ { 0x08a6, 0x2502 },
+ { 0x08a7, 0x23a1 },
+ { 0x08a8, 0x23a3 },
+ { 0x08a9, 0x23a4 },
+ { 0x08aa, 0x23a6 },
+ { 0x08ab, 0x239b },
+ { 0x08ac, 0x239d },
+ { 0x08ad, 0x239e },
+ { 0x08ae, 0x23a0 },
+ { 0x08af, 0x23a8 },
+ { 0x08b0, 0x23ac },
+ { 0x08bc, 0x2264 },
+ { 0x08bd, 0x2260 },
+ { 0x08be, 0x2265 },
+ { 0x08bf, 0x222b },
+ { 0x08c0, 0x2234 },
+ { 0x08c1, 0x221d },
+ { 0x08c2, 0x221e },
+ { 0x08c5, 0x2207 },
+ { 0x08c8, 0x223c },
+ { 0x08c9, 0x2243 },
+ { 0x08cd, 0x21d4 },
+ { 0x08ce, 0x21d2 },
+ { 0x08cf, 0x2261 },
+ { 0x08d6, 0x221a },
+ { 0x08da, 0x2282 },
+ { 0x08db, 0x2283 },
+ { 0x08dc, 0x2229 },
+ { 0x08dd, 0x222a },
+ { 0x08de, 0x2227 },
+ { 0x08df, 0x2228 },
+ { 0x08ef, 0x2202 },
+ { 0x08f6, 0x0192 },
+ { 0x08fb, 0x2190 },
+ { 0x08fc, 0x2191 },
+ { 0x08fd, 0x2192 },
+ { 0x08fe, 0x2193 },
+ { 0x09e0, 0x25c6 },
+ { 0x09e1, 0x2592 },
+ { 0x09e2, 0x2409 },
+ { 0x09e3, 0x240c },
+ { 0x09e4, 0x240d },
+ { 0x09e5, 0x240a },
+ { 0x09e8, 0x2424 },
+ { 0x09e9, 0x240b },
+ { 0x09ea, 0x2518 },
+ { 0x09eb, 0x2510 },
+ { 0x09ec, 0x250c },
+ { 0x09ed, 0x2514 },
+ { 0x09ee, 0x253c },
+ { 0x09ef, 0x23ba },
+ { 0x09f0, 0x23bb },
+ { 0x09f1, 0x2500 },
+ { 0x09f2, 0x23bc },
+ { 0x09f3, 0x23bd },
+ { 0x09f4, 0x251c },
+ { 0x09f5, 0x2524 },
+ { 0x09f6, 0x2534 },
+ { 0x09f7, 0x252c },
+ { 0x09f8, 0x2502 },
+ { 0x0aa1, 0x2003 },
+ { 0x0aa2, 0x2002 },
+ { 0x0aa3, 0x2004 },
+ { 0x0aa4, 0x2005 },
+ { 0x0aa5, 0x2007 },
+ { 0x0aa6, 0x2008 },
+ { 0x0aa7, 0x2009 },
+ { 0x0aa8, 0x200a },
+ { 0x0aa9, 0x2014 },
+ { 0x0aaa, 0x2013 },
+ { 0x0aae, 0x2026 },
+ { 0x0aaf, 0x2025 },
+ { 0x0ab0, 0x2153 },
+ { 0x0ab1, 0x2154 },
+ { 0x0ab2, 0x2155 },
+ { 0x0ab3, 0x2156 },
+ { 0x0ab4, 0x2157 },
+ { 0x0ab5, 0x2158 },
+ { 0x0ab6, 0x2159 },
+ { 0x0ab7, 0x215a },
+ { 0x0ab8, 0x2105 },
+ { 0x0abb, 0x2012 },
+ { 0x0abc, 0x2329 },
+ { 0x0abe, 0x232a },
+ { 0x0ac3, 0x215b },
+ { 0x0ac4, 0x215c },
+ { 0x0ac5, 0x215d },
+ { 0x0ac6, 0x215e },
+ { 0x0ac9, 0x2122 },
+ { 0x0aca, 0x2613 },
+ { 0x0acc, 0x25c1 },
+ { 0x0acd, 0x25b7 },
+ { 0x0ace, 0x25cb },
+ { 0x0acf, 0x25af },
+ { 0x0ad0, 0x2018 },
+ { 0x0ad1, 0x2019 },
+ { 0x0ad2, 0x201c },
+ { 0x0ad3, 0x201d },
+ { 0x0ad4, 0x211e },
+ { 0x0ad6, 0x2032 },
+ { 0x0ad7, 0x2033 },
+ { 0x0ad9, 0x271d },
+ { 0x0adb, 0x25ac },
+ { 0x0adc, 0x25c0 },
+ { 0x0add, 0x25b6 },
+ { 0x0ade, 0x25cf },
+ { 0x0adf, 0x25ae },
+ { 0x0ae0, 0x25e6 },
+ { 0x0ae1, 0x25ab },
+ { 0x0ae2, 0x25ad },
+ { 0x0ae3, 0x25b3 },
+ { 0x0ae4, 0x25bd },
+ { 0x0ae5, 0x2606 },
+ { 0x0ae6, 0x2022 },
+ { 0x0ae7, 0x25aa },
+ { 0x0ae8, 0x25b2 },
+ { 0x0ae9, 0x25bc },
+ { 0x0aea, 0x261c },
+ { 0x0aeb, 0x261e },
+ { 0x0aec, 0x2663 },
+ { 0x0aed, 0x2666 },
+ { 0x0aee, 0x2665 },
+ { 0x0af0, 0x2720 },
+ { 0x0af1, 0x2020 },
+ { 0x0af2, 0x2021 },
+ { 0x0af3, 0x2713 },
+ { 0x0af4, 0x2717 },
+ { 0x0af5, 0x266f },
+ { 0x0af6, 0x266d },
+ { 0x0af7, 0x2642 },
+ { 0x0af8, 0x2640 },
+ { 0x0af9, 0x260e },
+ { 0x0afa, 0x2315 },
+ { 0x0afb, 0x2117 },
+ { 0x0afc, 0x2038 },
+ { 0x0afd, 0x201a },
+ { 0x0afe, 0x201e },
+ { 0x0ba3, 0x003c },
+ { 0x0ba6, 0x003e },
+ { 0x0ba8, 0x2228 },
+ { 0x0ba9, 0x2227 },
+ { 0x0bc0, 0x00af },
+ { 0x0bc2, 0x22a5 },
+ { 0x0bc3, 0x2229 },
+ { 0x0bc4, 0x230a },
+ { 0x0bc6, 0x005f },
+ { 0x0bca, 0x2218 },
+ { 0x0bcc, 0x2395 },
+ { 0x0bce, 0x22a4 },
+ { 0x0bcf, 0x25cb },
+ { 0x0bd3, 0x2308 },
+ { 0x0bd6, 0x222a },
+ { 0x0bd8, 0x2283 },
+ { 0x0bda, 0x2282 },
+ { 0x0bdc, 0x22a2 },
+ { 0x0bfc, 0x22a3 },
+ { 0x0cdf, 0x2017 },
+ { 0x0ce0, 0x05d0 },
+ { 0x0ce1, 0x05d1 },
+ { 0x0ce2, 0x05d2 },
+ { 0x0ce3, 0x05d3 },
+ { 0x0ce4, 0x05d4 },
+ { 0x0ce5, 0x05d5 },
+ { 0x0ce6, 0x05d6 },
+ { 0x0ce7, 0x05d7 },
+ { 0x0ce8, 0x05d8 },
+ { 0x0ce9, 0x05d9 },
+ { 0x0cea, 0x05da },
+ { 0x0ceb, 0x05db },
+ { 0x0cec, 0x05dc },
+ { 0x0ced, 0x05dd },
+ { 0x0cee, 0x05de },
+ { 0x0cef, 0x05df },
+ { 0x0cf0, 0x05e0 },
+ { 0x0cf1, 0x05e1 },
+ { 0x0cf2, 0x05e2 },
+ { 0x0cf3, 0x05e3 },
+ { 0x0cf4, 0x05e4 },
+ { 0x0cf5, 0x05e5 },
+ { 0x0cf6, 0x05e6 },
+ { 0x0cf7, 0x05e7 },
+ { 0x0cf8, 0x05e8 },
+ { 0x0cf9, 0x05e9 },
+ { 0x0cfa, 0x05ea },
+ { 0x0da1, 0x0e01 },
+ { 0x0da2, 0x0e02 },
+ { 0x0da3, 0x0e03 },
+ { 0x0da4, 0x0e04 },
+ { 0x0da5, 0x0e05 },
+ { 0x0da6, 0x0e06 },
+ { 0x0da7, 0x0e07 },
+ { 0x0da8, 0x0e08 },
+ { 0x0da9, 0x0e09 },
+ { 0x0daa, 0x0e0a },
+ { 0x0dab, 0x0e0b },
+ { 0x0dac, 0x0e0c },
+ { 0x0dad, 0x0e0d },
+ { 0x0dae, 0x0e0e },
+ { 0x0daf, 0x0e0f },
+ { 0x0db0, 0x0e10 },
+ { 0x0db1, 0x0e11 },
+ { 0x0db2, 0x0e12 },
+ { 0x0db3, 0x0e13 },
+ { 0x0db4, 0x0e14 },
+ { 0x0db5, 0x0e15 },
+ { 0x0db6, 0x0e16 },
+ { 0x0db7, 0x0e17 },
+ { 0x0db8, 0x0e18 },
+ { 0x0db9, 0x0e19 },
+ { 0x0dba, 0x0e1a },
+ { 0x0dbb, 0x0e1b },
+ { 0x0dbc, 0x0e1c },
+ { 0x0dbd, 0x0e1d },
+ { 0x0dbe, 0x0e1e },
+ { 0x0dbf, 0x0e1f },
+ { 0x0dc0, 0x0e20 },
+ { 0x0dc1, 0x0e21 },
+ { 0x0dc2, 0x0e22 },
+ { 0x0dc3, 0x0e23 },
+ { 0x0dc4, 0x0e24 },
+ { 0x0dc5, 0x0e25 },
+ { 0x0dc6, 0x0e26 },
+ { 0x0dc7, 0x0e27 },
+ { 0x0dc8, 0x0e28 },
+ { 0x0dc9, 0x0e29 },
+ { 0x0dca, 0x0e2a },
+ { 0x0dcb, 0x0e2b },
+ { 0x0dcc, 0x0e2c },
+ { 0x0dcd, 0x0e2d },
+ { 0x0dce, 0x0e2e },
+ { 0x0dcf, 0x0e2f },
+ { 0x0dd0, 0x0e30 },
+ { 0x0dd1, 0x0e31 },
+ { 0x0dd2, 0x0e32 },
+ { 0x0dd3, 0x0e33 },
+ { 0x0dd4, 0x0e34 },
+ { 0x0dd5, 0x0e35 },
+ { 0x0dd6, 0x0e36 },
+ { 0x0dd7, 0x0e37 },
+ { 0x0dd8, 0x0e38 },
+ { 0x0dd9, 0x0e39 },
+ { 0x0dda, 0x0e3a },
+ { 0x0ddf, 0x0e3f },
+ { 0x0de0, 0x0e40 },
+ { 0x0de1, 0x0e41 },
+ { 0x0de2, 0x0e42 },
+ { 0x0de3, 0x0e43 },
+ { 0x0de4, 0x0e44 },
+ { 0x0de5, 0x0e45 },
+ { 0x0de6, 0x0e46 },
+ { 0x0de7, 0x0e47 },
+ { 0x0de8, 0x0e48 },
+ { 0x0de9, 0x0e49 },
+ { 0x0dea, 0x0e4a },
+ { 0x0deb, 0x0e4b },
+ { 0x0dec, 0x0e4c },
+ { 0x0ded, 0x0e4d },
+ { 0x0df0, 0x0e50 },
+ { 0x0df1, 0x0e51 },
+ { 0x0df2, 0x0e52 },
+ { 0x0df3, 0x0e53 },
+ { 0x0df4, 0x0e54 },
+ { 0x0df5, 0x0e55 },
+ { 0x0df6, 0x0e56 },
+ { 0x0df7, 0x0e57 },
+ { 0x0df8, 0x0e58 },
+ { 0x0df9, 0x0e59 },
+ { 0x0ea1, 0x3131 },
+ { 0x0ea2, 0x3132 },
+ { 0x0ea3, 0x3133 },
+ { 0x0ea4, 0x3134 },
+ { 0x0ea5, 0x3135 },
+ { 0x0ea6, 0x3136 },
+ { 0x0ea7, 0x3137 },
+ { 0x0ea8, 0x3138 },
+ { 0x0ea9, 0x3139 },
+ { 0x0eaa, 0x313a },
+ { 0x0eab, 0x313b },
+ { 0x0eac, 0x313c },
+ { 0x0ead, 0x313d },
+ { 0x0eae, 0x313e },
+ { 0x0eaf, 0x313f },
+ { 0x0eb0, 0x3140 },
+ { 0x0eb1, 0x3141 },
+ { 0x0eb2, 0x3142 },
+ { 0x0eb3, 0x3143 },
+ { 0x0eb4, 0x3144 },
+ { 0x0eb5, 0x3145 },
+ { 0x0eb6, 0x3146 },
+ { 0x0eb7, 0x3147 },
+ { 0x0eb8, 0x3148 },
+ { 0x0eb9, 0x3149 },
+ { 0x0eba, 0x314a },
+ { 0x0ebb, 0x314b },
+ { 0x0ebc, 0x314c },
+ { 0x0ebd, 0x314d },
+ { 0x0ebe, 0x314e },
+ { 0x0ebf, 0x314f },
+ { 0x0ec0, 0x3150 },
+ { 0x0ec1, 0x3151 },
+ { 0x0ec2, 0x3152 },
+ { 0x0ec3, 0x3153 },
+ { 0x0ec4, 0x3154 },
+ { 0x0ec5, 0x3155 },
+ { 0x0ec6, 0x3156 },
+ { 0x0ec7, 0x3157 },
+ { 0x0ec8, 0x3158 },
+ { 0x0ec9, 0x3159 },
+ { 0x0eca, 0x315a },
+ { 0x0ecb, 0x315b },
+ { 0x0ecc, 0x315c },
+ { 0x0ecd, 0x315d },
+ { 0x0ece, 0x315e },
+ { 0x0ecf, 0x315f },
+ { 0x0ed0, 0x3160 },
+ { 0x0ed1, 0x3161 },
+ { 0x0ed2, 0x3162 },
+ { 0x0ed3, 0x3163 },
+ { 0x0ed4, 0x11a8 },
+ { 0x0ed5, 0x11a9 },
+ { 0x0ed6, 0x11aa },
+ { 0x0ed7, 0x11ab },
+ { 0x0ed8, 0x11ac },
+ { 0x0ed9, 0x11ad },
+ { 0x0eda, 0x11ae },
+ { 0x0edb, 0x11af },
+ { 0x0edc, 0x11b0 },
+ { 0x0edd, 0x11b1 },
+ { 0x0ede, 0x11b2 },
+ { 0x0edf, 0x11b3 },
+ { 0x0ee0, 0x11b4 },
+ { 0x0ee1, 0x11b5 },
+ { 0x0ee2, 0x11b6 },
+ { 0x0ee3, 0x11b7 },
+ { 0x0ee4, 0x11b8 },
+ { 0x0ee5, 0x11b9 },
+ { 0x0ee6, 0x11ba },
+ { 0x0ee7, 0x11bb },
+ { 0x0ee8, 0x11bc },
+ { 0x0ee9, 0x11bd },
+ { 0x0eea, 0x11be },
+ { 0x0eeb, 0x11bf },
+ { 0x0eec, 0x11c0 },
+ { 0x0eed, 0x11c1 },
+ { 0x0eee, 0x11c2 },
+ { 0x0eef, 0x316d },
+ { 0x0ef0, 0x3171 },
+ { 0x0ef1, 0x3178 },
+ { 0x0ef2, 0x317f },
+ { 0x0ef3, 0x3181 },
+ { 0x0ef4, 0x3184 },
+ { 0x0ef5, 0x3186 },
+ { 0x0ef6, 0x318d },
+ { 0x0ef7, 0x318e },
+ { 0x0ef8, 0x11eb },
+ { 0x0ef9, 0x11f0 },
+ { 0x0efa, 0x11f9 },
+ { 0x0eff, 0x20a9 },
+ { 0x13a4, 0x20ac },
+ { 0x13bc, 0x0152 },
+ { 0x13bd, 0x0153 },
+ { 0x13be, 0x0178 },
+ { 0x20ac, 0x20ac },
+ { 0xfe50, '`' },
+ { 0xfe51, 0x00b4 },
+ { 0xfe52, '^' },
+ { 0xfe53, '~' },
+ { 0xfe54, 0x00af },
+ { 0xfe55, 0x02d8 },
+ { 0xfe56, 0x02d9 },
+ { 0xfe57, 0x00a8 },
+ { 0xfe58, 0x02da },
+ { 0xfe59, 0x02dd },
+ { 0xfe5a, 0x02c7 },
+ { 0xfe5b, 0x00b8 },
+ { 0xfe5c, 0x02db },
+ { 0xfe5d, 0x037a },
+ { 0xfe5e, 0x309b },
+ { 0xfe5f, 0x309c },
+ { 0xfe63, '/' },
+ { 0xfe64, 0x02bc },
+ { 0xfe65, 0x02bd },
+ { 0xfe66, 0x02f5 },
+ { 0xfe67, 0x02f3 },
+ { 0xfe68, 0x02cd },
+ { 0xfe69, 0xa788 },
+ { 0xfe6a, 0x02f7 },
+ { 0xfe6e, ',' },
+ { 0xfe6f, 0x00a4 },
+ { 0xfe80, 'a' }, /* XK_dead_a */
+ { 0xfe81, 'A' }, /* XK_dead_A */
+ { 0xfe82, 'e' }, /* XK_dead_e */
+ { 0xfe83, 'E' }, /* XK_dead_E */
+ { 0xfe84, 'i' }, /* XK_dead_i */
+ { 0xfe85, 'I' }, /* XK_dead_I */
+ { 0xfe86, 'o' }, /* XK_dead_o */
+ { 0xfe87, 'O' }, /* XK_dead_O */
+ { 0xfe88, 'u' }, /* XK_dead_u */
+ { 0xfe89, 'U' }, /* XK_dead_U */
+ { 0xfe8a, 0x0259 },
+ { 0xfe8b, 0x018f },
+ { 0xfe8c, 0x00b5 },
+ { 0xfe90, '_' },
+ { 0xfe91, 0x02c8 },
+ { 0xfe92, 0x02cc },
+ { 0xff80 /*XKB_KEY_KP_Space*/, ' ' },
+ { 0xff95 /*XKB_KEY_KP_7*/, 0x0037 },
+ { 0xff96 /*XKB_KEY_KP_4*/, 0x0034 },
+ { 0xff97 /*XKB_KEY_KP_8*/, 0x0038 },
+ { 0xff98 /*XKB_KEY_KP_6*/, 0x0036 },
+ { 0xff99 /*XKB_KEY_KP_2*/, 0x0032 },
+ { 0xff9a /*XKB_KEY_KP_9*/, 0x0039 },
+ { 0xff9b /*XKB_KEY_KP_3*/, 0x0033 },
+ { 0xff9c /*XKB_KEY_KP_1*/, 0x0031 },
+ { 0xff9d /*XKB_KEY_KP_5*/, 0x0035 },
+ { 0xff9e /*XKB_KEY_KP_0*/, 0x0030 },
+ { 0xffaa /*XKB_KEY_KP_Multiply*/, '*' },
+ { 0xffab /*XKB_KEY_KP_Add*/, '+' },
+ { 0xffac /*XKB_KEY_KP_Separator*/, ',' },
+ { 0xffad /*XKB_KEY_KP_Subtract*/, '-' },
+ { 0xffae /*XKB_KEY_KP_Decimal*/, '.' },
+ { 0xffaf /*XKB_KEY_KP_Divide*/, '/' },
+ { 0xffb0 /*XKB_KEY_KP_0*/, 0x0030 },
+ { 0xffb1 /*XKB_KEY_KP_1*/, 0x0031 },
+ { 0xffb2 /*XKB_KEY_KP_2*/, 0x0032 },
+ { 0xffb3 /*XKB_KEY_KP_3*/, 0x0033 },
+ { 0xffb4 /*XKB_KEY_KP_4*/, 0x0034 },
+ { 0xffb5 /*XKB_KEY_KP_5*/, 0x0035 },
+ { 0xffb6 /*XKB_KEY_KP_6*/, 0x0036 },
+ { 0xffb7 /*XKB_KEY_KP_7*/, 0x0037 },
+ { 0xffb8 /*XKB_KEY_KP_8*/, 0x0038 },
+ { 0xffb9 /*XKB_KEY_KP_9*/, 0x0039 },
+ { 0xffbd /*XKB_KEY_KP_Equal*/, '=' }
+};
+
+_SOKOL_PRIVATE int _sapp_x11_error_handler(Display* display, XErrorEvent* event) {
+ _SOKOL_UNUSED(display);
+ _sapp.x11.error_code = event->error_code;
+ return 0;
+}
+
+_SOKOL_PRIVATE void _sapp_x11_grab_error_handler(void) {
+ _sapp.x11.error_code = Success;
+ XSetErrorHandler(_sapp_x11_error_handler);
+}
+
+_SOKOL_PRIVATE void _sapp_x11_release_error_handler(void) {
+ XSync(_sapp.x11.display, False);
+ XSetErrorHandler(NULL);
+}
+
+_SOKOL_PRIVATE void _sapp_x11_init_extensions(void) {
+ _sapp.x11.UTF8_STRING = XInternAtom(_sapp.x11.display, "UTF8_STRING", False);
+ _sapp.x11.WM_PROTOCOLS = XInternAtom(_sapp.x11.display, "WM_PROTOCOLS", False);
+ _sapp.x11.WM_DELETE_WINDOW = XInternAtom(_sapp.x11.display, "WM_DELETE_WINDOW", False);
+ _sapp.x11.WM_STATE = XInternAtom(_sapp.x11.display, "WM_STATE", False);
+ _sapp.x11.NET_WM_NAME = XInternAtom(_sapp.x11.display, "_NET_WM_NAME", False);
+ _sapp.x11.NET_WM_ICON_NAME = XInternAtom(_sapp.x11.display, "_NET_WM_ICON_NAME", False);
+ _sapp.x11.NET_WM_ICON = XInternAtom(_sapp.x11.display, "_NET_WM_ICON", False);
+ _sapp.x11.NET_WM_STATE = XInternAtom(_sapp.x11.display, "_NET_WM_STATE", False);
+ _sapp.x11.NET_WM_STATE_FULLSCREEN = XInternAtom(_sapp.x11.display, "_NET_WM_STATE_FULLSCREEN", False);
+ if (_sapp.drop.enabled) {
+ _sapp.x11.xdnd.XdndAware = XInternAtom(_sapp.x11.display, "XdndAware", False);
+ _sapp.x11.xdnd.XdndEnter = XInternAtom(_sapp.x11.display, "XdndEnter", False);
+ _sapp.x11.xdnd.XdndPosition = XInternAtom(_sapp.x11.display, "XdndPosition", False);
+ _sapp.x11.xdnd.XdndStatus = XInternAtom(_sapp.x11.display, "XdndStatus", False);
+ _sapp.x11.xdnd.XdndActionCopy = XInternAtom(_sapp.x11.display, "XdndActionCopy", False);
+ _sapp.x11.xdnd.XdndDrop = XInternAtom(_sapp.x11.display, "XdndDrop", False);
+ _sapp.x11.xdnd.XdndFinished = XInternAtom(_sapp.x11.display, "XdndFinished", False);
+ _sapp.x11.xdnd.XdndSelection = XInternAtom(_sapp.x11.display, "XdndSelection", False);
+ _sapp.x11.xdnd.XdndTypeList = XInternAtom(_sapp.x11.display, "XdndTypeList", False);
+ _sapp.x11.xdnd.text_uri_list = XInternAtom(_sapp.x11.display, "text/uri-list", False);
+ }
+
+ /* check Xi extension for raw mouse input */
+ if (XQueryExtension(_sapp.x11.display, "XInputExtension", &_sapp.x11.xi.major_opcode, &_sapp.x11.xi.event_base, &_sapp.x11.xi.error_base)) {
+ _sapp.x11.xi.major = 2;
+ _sapp.x11.xi.minor = 0;
+ if (XIQueryVersion(_sapp.x11.display, &_sapp.x11.xi.major, &_sapp.x11.xi.minor) == Success) {
+ _sapp.x11.xi.available = true;
+ }
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_x11_query_system_dpi(void) {
+ /* from GLFW:
+
+ NOTE: Default to the display-wide DPI as we don't currently have a policy
+ for which monitor a window is considered to be on
+
+ _sapp.x11.dpi = DisplayWidth(_sapp.x11.display, _sapp.x11.screen) *
+ 25.4f / DisplayWidthMM(_sapp.x11.display, _sapp.x11.screen);
+
+ NOTE: Basing the scale on Xft.dpi where available should provide the most
+ consistent user experience (matches Qt, Gtk, etc), although not
+ always the most accurate one
+ */
+ bool dpi_ok = false;
+ char* rms = XResourceManagerString(_sapp.x11.display);
+ if (rms) {
+ XrmDatabase db = XrmGetStringDatabase(rms);
+ if (db) {
+ XrmValue value;
+ char* type = NULL;
+ if (XrmGetResource(db, "Xft.dpi", "Xft.Dpi", &type, &value)) {
+ if (type && strcmp(type, "String") == 0) {
+ _sapp.x11.dpi = atof(value.addr);
+ dpi_ok = true;
+ }
+ }
+ XrmDestroyDatabase(db);
+ }
+ }
+ // fallback if querying DPI had failed: assume the standard DPI 96.0f
+ if (!dpi_ok) {
+ _sapp.x11.dpi = 96.0f;
+ _SAPP_WARN(LINUX_X11_QUERY_SYSTEM_DPI_FAILED);
+ }
+}
+
+#if defined(_SAPP_GLX)
+
+_SOKOL_PRIVATE bool _sapp_glx_has_ext(const char* ext, const char* extensions) {
+ SOKOL_ASSERT(ext);
+ const char* start = extensions;
+ while (true) {
+ const char* where = strstr(start, ext);
+ if (!where) {
+ return false;
+ }
+ const char* terminator = where + strlen(ext);
+ if ((where == start) || (*(where - 1) == ' ')) {
+ if (*terminator == ' ' || *terminator == '\0') {
+ break;
+ }
+ }
+ start = terminator;
+ }
+ return true;
+}
+
+_SOKOL_PRIVATE bool _sapp_glx_extsupported(const char* ext, const char* extensions) {
+ if (extensions) {
+ return _sapp_glx_has_ext(ext, extensions);
+ }
+ else {
+ return false;
+ }
+}
+
+_SOKOL_PRIVATE void* _sapp_glx_getprocaddr(const char* procname)
+{
+ if (_sapp.glx.GetProcAddress) {
+ return (void*) _sapp.glx.GetProcAddress(procname);
+ }
+ else if (_sapp.glx.GetProcAddressARB) {
+ return (void*) _sapp.glx.GetProcAddressARB(procname);
+ }
+ else {
+ return dlsym(_sapp.glx.libgl, procname);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_glx_init() {
+ const char* sonames[] = { "libGL.so.1", "libGL.so", 0 };
+ for (int i = 0; sonames[i]; i++) {
+ _sapp.glx.libgl = dlopen(sonames[i], RTLD_LAZY|RTLD_GLOBAL);
+ if (_sapp.glx.libgl) {
+ break;
+ }
+ }
+ if (!_sapp.glx.libgl) {
+ _SAPP_PANIC(LINUX_GLX_LOAD_LIBGL_FAILED);
+ }
+ _sapp.glx.GetFBConfigs = (PFNGLXGETFBCONFIGSPROC) dlsym(_sapp.glx.libgl, "glXGetFBConfigs");
+ _sapp.glx.GetFBConfigAttrib = (PFNGLXGETFBCONFIGATTRIBPROC) dlsym(_sapp.glx.libgl, "glXGetFBConfigAttrib");
+ _sapp.glx.GetClientString = (PFNGLXGETCLIENTSTRINGPROC) dlsym(_sapp.glx.libgl, "glXGetClientString");
+ _sapp.glx.QueryExtension = (PFNGLXQUERYEXTENSIONPROC) dlsym(_sapp.glx.libgl, "glXQueryExtension");
+ _sapp.glx.QueryVersion = (PFNGLXQUERYVERSIONPROC) dlsym(_sapp.glx.libgl, "glXQueryVersion");
+ _sapp.glx.DestroyContext = (PFNGLXDESTROYCONTEXTPROC) dlsym(_sapp.glx.libgl, "glXDestroyContext");
+ _sapp.glx.MakeCurrent = (PFNGLXMAKECURRENTPROC) dlsym(_sapp.glx.libgl, "glXMakeCurrent");
+ _sapp.glx.SwapBuffers = (PFNGLXSWAPBUFFERSPROC) dlsym(_sapp.glx.libgl, "glXSwapBuffers");
+ _sapp.glx.QueryExtensionsString = (PFNGLXQUERYEXTENSIONSSTRINGPROC) dlsym(_sapp.glx.libgl, "glXQueryExtensionsString");
+ _sapp.glx.CreateWindow = (PFNGLXCREATEWINDOWPROC) dlsym(_sapp.glx.libgl, "glXCreateWindow");
+ _sapp.glx.DestroyWindow = (PFNGLXDESTROYWINDOWPROC) dlsym(_sapp.glx.libgl, "glXDestroyWindow");
+ _sapp.glx.GetProcAddress = (PFNGLXGETPROCADDRESSPROC) dlsym(_sapp.glx.libgl, "glXGetProcAddress");
+ _sapp.glx.GetProcAddressARB = (PFNGLXGETPROCADDRESSPROC) dlsym(_sapp.glx.libgl, "glXGetProcAddressARB");
+ _sapp.glx.GetVisualFromFBConfig = (PFNGLXGETVISUALFROMFBCONFIGPROC) dlsym(_sapp.glx.libgl, "glXGetVisualFromFBConfig");
+ if (!_sapp.glx.GetFBConfigs ||
+ !_sapp.glx.GetFBConfigAttrib ||
+ !_sapp.glx.GetClientString ||
+ !_sapp.glx.QueryExtension ||
+ !_sapp.glx.QueryVersion ||
+ !_sapp.glx.DestroyContext ||
+ !_sapp.glx.MakeCurrent ||
+ !_sapp.glx.SwapBuffers ||
+ !_sapp.glx.QueryExtensionsString ||
+ !_sapp.glx.CreateWindow ||
+ !_sapp.glx.DestroyWindow ||
+ !_sapp.glx.GetProcAddress ||
+ !_sapp.glx.GetProcAddressARB ||
+ !_sapp.glx.GetVisualFromFBConfig)
+ {
+ _SAPP_PANIC(LINUX_GLX_LOAD_ENTRY_POINTS_FAILED);
+ }
+
+ if (!_sapp.glx.QueryExtension(_sapp.x11.display, &_sapp.glx.error_base, &_sapp.glx.event_base)) {
+ _SAPP_PANIC(LINUX_GLX_EXTENSION_NOT_FOUND);
+ }
+ if (!_sapp.glx.QueryVersion(_sapp.x11.display, &_sapp.glx.major, &_sapp.glx.minor)) {
+ _SAPP_PANIC(LINUX_GLX_QUERY_VERSION_FAILED);
+ }
+ if (_sapp.glx.major == 1 && _sapp.glx.minor < 3) {
+ _SAPP_PANIC(LINUX_GLX_VERSION_TOO_LOW);
+ }
+ const char* exts = _sapp.glx.QueryExtensionsString(_sapp.x11.display, _sapp.x11.screen);
+ if (_sapp_glx_extsupported("GLX_EXT_swap_control", exts)) {
+ _sapp.glx.SwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC) _sapp_glx_getprocaddr("glXSwapIntervalEXT");
+ _sapp.glx.EXT_swap_control = 0 != _sapp.glx.SwapIntervalEXT;
+ }
+ if (_sapp_glx_extsupported("GLX_MESA_swap_control", exts)) {
+ _sapp.glx.SwapIntervalMESA = (PFNGLXSWAPINTERVALMESAPROC) _sapp_glx_getprocaddr("glXSwapIntervalMESA");
+ _sapp.glx.MESA_swap_control = 0 != _sapp.glx.SwapIntervalMESA;
+ }
+ _sapp.glx.ARB_multisample = _sapp_glx_extsupported("GLX_ARB_multisample", exts);
+ if (_sapp_glx_extsupported("GLX_ARB_create_context", exts)) {
+ _sapp.glx.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC) _sapp_glx_getprocaddr("glXCreateContextAttribsARB");
+ _sapp.glx.ARB_create_context = 0 != _sapp.glx.CreateContextAttribsARB;
+ }
+ _sapp.glx.ARB_create_context_profile = _sapp_glx_extsupported("GLX_ARB_create_context_profile", exts);
+}
+
+_SOKOL_PRIVATE int _sapp_glx_attrib(GLXFBConfig fbconfig, int attrib) {
+ int value;
+ _sapp.glx.GetFBConfigAttrib(_sapp.x11.display, fbconfig, attrib, &value);
+ return value;
+}
+
+_SOKOL_PRIVATE GLXFBConfig _sapp_glx_choosefbconfig() {
+ GLXFBConfig* native_configs;
+ _sapp_gl_fbconfig* usable_configs;
+ const _sapp_gl_fbconfig* closest;
+ int i, native_count, usable_count;
+ const char* vendor;
+ bool trust_window_bit = true;
+
+ /* HACK: This is a (hopefully temporary) workaround for Chromium
+ (VirtualBox GL) not setting the window bit on any GLXFBConfigs
+ */
+ vendor = _sapp.glx.GetClientString(_sapp.x11.display, GLX_VENDOR);
+ if (vendor && strcmp(vendor, "Chromium") == 0) {
+ trust_window_bit = false;
+ }
+
+ native_configs = _sapp.glx.GetFBConfigs(_sapp.x11.display, _sapp.x11.screen, &native_count);
+ if (!native_configs || !native_count) {
+ _SAPP_PANIC(LINUX_GLX_NO_GLXFBCONFIGS);
+ }
+
+ usable_configs = (_sapp_gl_fbconfig*) _sapp_malloc_clear((size_t)native_count * sizeof(_sapp_gl_fbconfig));
+ usable_count = 0;
+ for (i = 0; i < native_count; i++) {
+ const GLXFBConfig n = native_configs[i];
+ _sapp_gl_fbconfig* u = usable_configs + usable_count;
+ _sapp_gl_init_fbconfig(u);
+
+ /* Only consider RGBA GLXFBConfigs */
+ if (0 == (_sapp_glx_attrib(n, GLX_RENDER_TYPE) & GLX_RGBA_BIT)) {
+ continue;
+ }
+ /* Only consider window GLXFBConfigs */
+ if (0 == (_sapp_glx_attrib(n, GLX_DRAWABLE_TYPE) & GLX_WINDOW_BIT)) {
+ if (trust_window_bit) {
+ continue;
+ }
+ }
+ u->red_bits = _sapp_glx_attrib(n, GLX_RED_SIZE);
+ u->green_bits = _sapp_glx_attrib(n, GLX_GREEN_SIZE);
+ u->blue_bits = _sapp_glx_attrib(n, GLX_BLUE_SIZE);
+ u->alpha_bits = _sapp_glx_attrib(n, GLX_ALPHA_SIZE);
+ u->depth_bits = _sapp_glx_attrib(n, GLX_DEPTH_SIZE);
+ u->stencil_bits = _sapp_glx_attrib(n, GLX_STENCIL_SIZE);
+ if (_sapp_glx_attrib(n, GLX_DOUBLEBUFFER)) {
+ u->doublebuffer = true;
+ }
+ if (_sapp.glx.ARB_multisample) {
+ u->samples = _sapp_glx_attrib(n, GLX_SAMPLES);
+ }
+ u->handle = (uintptr_t) n;
+ usable_count++;
+ }
+ _sapp_gl_fbconfig desired;
+ _sapp_gl_init_fbconfig(&desired);
+ desired.red_bits = 8;
+ desired.green_bits = 8;
+ desired.blue_bits = 8;
+ desired.alpha_bits = 8;
+ desired.depth_bits = 24;
+ desired.stencil_bits = 8;
+ desired.doublebuffer = true;
+ desired.samples = _sapp.sample_count > 1 ? _sapp.sample_count : 0;
+ closest = _sapp_gl_choose_fbconfig(&desired, usable_configs, usable_count);
+ GLXFBConfig result = 0;
+ if (closest) {
+ result = (GLXFBConfig) closest->handle;
+ }
+ XFree(native_configs);
+ _sapp_free(usable_configs);
+ return result;
+}
+
+_SOKOL_PRIVATE void _sapp_glx_choose_visual(Visual** visual, int* depth) {
+ GLXFBConfig native = _sapp_glx_choosefbconfig();
+ if (0 == native) {
+ _SAPP_PANIC(LINUX_GLX_NO_SUITABLE_GLXFBCONFIG);
+ }
+ XVisualInfo* result = _sapp.glx.GetVisualFromFBConfig(_sapp.x11.display, native);
+ if (!result) {
+ _SAPP_PANIC(LINUX_GLX_GET_VISUAL_FROM_FBCONFIG_FAILED);
+ }
+ *visual = result->visual;
+ *depth = result->depth;
+ XFree(result);
+}
+
+_SOKOL_PRIVATE void _sapp_glx_create_context(void) {
+ GLXFBConfig native = _sapp_glx_choosefbconfig();
+ if (0 == native){
+ _SAPP_PANIC(LINUX_GLX_NO_SUITABLE_GLXFBCONFIG);
+ }
+ if (!(_sapp.glx.ARB_create_context && _sapp.glx.ARB_create_context_profile)) {
+ _SAPP_PANIC(LINUX_GLX_REQUIRED_EXTENSIONS_MISSING);
+ }
+ _sapp_x11_grab_error_handler();
+ const int attribs[] = {
+ GLX_CONTEXT_MAJOR_VERSION_ARB, _sapp.desc.gl_major_version,
+ GLX_CONTEXT_MINOR_VERSION_ARB, _sapp.desc.gl_minor_version,
+ GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
+ GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
+ 0, 0
+ };
+ _sapp.glx.ctx = _sapp.glx.CreateContextAttribsARB(_sapp.x11.display, native, NULL, True, attribs);
+ if (!_sapp.glx.ctx) {
+ _SAPP_PANIC(LINUX_GLX_CREATE_CONTEXT_FAILED);
+ }
+ _sapp_x11_release_error_handler();
+ _sapp.glx.window = _sapp.glx.CreateWindow(_sapp.x11.display, native, _sapp.x11.window, NULL);
+ if (!_sapp.glx.window) {
+ _SAPP_PANIC(LINUX_GLX_CREATE_WINDOW_FAILED);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_glx_destroy_context(void) {
+ if (_sapp.glx.window) {
+ _sapp.glx.DestroyWindow(_sapp.x11.display, _sapp.glx.window);
+ _sapp.glx.window = 0;
+ }
+ if (_sapp.glx.ctx) {
+ _sapp.glx.DestroyContext(_sapp.x11.display, _sapp.glx.ctx);
+ _sapp.glx.ctx = 0;
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_glx_make_current(void) {
+ _sapp.glx.MakeCurrent(_sapp.x11.display, _sapp.glx.window, _sapp.glx.ctx);
+}
+
+_SOKOL_PRIVATE void _sapp_glx_swap_buffers(void) {
+ _sapp.glx.SwapBuffers(_sapp.x11.display, _sapp.glx.window);
+}
+
+_SOKOL_PRIVATE void _sapp_glx_swapinterval(int interval) {
+ _sapp_glx_make_current();
+ if (_sapp.glx.EXT_swap_control) {
+ _sapp.glx.SwapIntervalEXT(_sapp.x11.display, _sapp.glx.window, interval);
+ }
+ else if (_sapp.glx.MESA_swap_control) {
+ _sapp.glx.SwapIntervalMESA(interval);
+ }
+}
+
+#endif /* _SAPP_GLX */
+
+_SOKOL_PRIVATE void _sapp_x11_send_event(Atom type, int a, int b, int c, int d, int e) {
+ XEvent event;
+ _sapp_clear(&event, sizeof(event));
+
+ event.type = ClientMessage;
+ event.xclient.window = _sapp.x11.window;
+ event.xclient.format = 32;
+ event.xclient.message_type = type;
+ event.xclient.data.l[0] = a;
+ event.xclient.data.l[1] = b;
+ event.xclient.data.l[2] = c;
+ event.xclient.data.l[3] = d;
+ event.xclient.data.l[4] = e;
+
+ XSendEvent(_sapp.x11.display, _sapp.x11.root,
+ False,
+ SubstructureNotifyMask | SubstructureRedirectMask,
+ &event);
+}
+
+_SOKOL_PRIVATE void _sapp_x11_query_window_size(void) {
+ XWindowAttributes attribs;
+ XGetWindowAttributes(_sapp.x11.display, _sapp.x11.window, &attribs);
+ _sapp.window_width = attribs.width;
+ _sapp.window_height = attribs.height;
+ _sapp.framebuffer_width = _sapp.window_width;
+ _sapp.framebuffer_height = _sapp.window_height;
+}
+
+_SOKOL_PRIVATE void _sapp_x11_set_fullscreen(bool enable) {
+ /* NOTE: this function must be called after XMapWindow (which happens in _sapp_x11_show_window()) */
+ if (_sapp.x11.NET_WM_STATE && _sapp.x11.NET_WM_STATE_FULLSCREEN) {
+ if (enable) {
+ const int _NET_WM_STATE_ADD = 1;
+ _sapp_x11_send_event(_sapp.x11.NET_WM_STATE,
+ _NET_WM_STATE_ADD,
+ _sapp.x11.NET_WM_STATE_FULLSCREEN,
+ 0, 1, 0);
+ }
+ else {
+ const int _NET_WM_STATE_REMOVE = 0;
+ _sapp_x11_send_event(_sapp.x11.NET_WM_STATE,
+ _NET_WM_STATE_REMOVE,
+ _sapp.x11.NET_WM_STATE_FULLSCREEN,
+ 0, 1, 0);
+ }
+ }
+ XFlush(_sapp.x11.display);
+}
+
+_SOKOL_PRIVATE void _sapp_x11_create_hidden_cursor(void) {
+ SOKOL_ASSERT(0 == _sapp.x11.hidden_cursor);
+ const int w = 16;
+ const int h = 16;
+ XcursorImage* img = XcursorImageCreate(w, h);
+ SOKOL_ASSERT(img && (img->width == 16) && (img->height == 16) && img->pixels);
+ img->xhot = 0;
+ img->yhot = 0;
+ const size_t num_bytes = (size_t)(w * h) * sizeof(XcursorPixel);
+ _sapp_clear(img->pixels, num_bytes);
+ _sapp.x11.hidden_cursor = XcursorImageLoadCursor(_sapp.x11.display, img);
+ XcursorImageDestroy(img);
+}
+
+ _SOKOL_PRIVATE void _sapp_x11_create_standard_cursor(sapp_mouse_cursor cursor, const char* name, const char* theme, int size, uint32_t fallback_native) {
+ SOKOL_ASSERT((cursor >= 0) && (cursor < _SAPP_MOUSECURSOR_NUM));
+ SOKOL_ASSERT(_sapp.x11.display);
+ if (theme) {
+ XcursorImage* img = XcursorLibraryLoadImage(name, theme, size);
+ if (img) {
+ _sapp.x11.cursors[cursor] = XcursorImageLoadCursor(_sapp.x11.display, img);
+ XcursorImageDestroy(img);
+ }
+ }
+ if (0 == _sapp.x11.cursors[cursor]) {
+ _sapp.x11.cursors[cursor] = XCreateFontCursor(_sapp.x11.display, fallback_native);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_x11_create_cursors(void) {
+ SOKOL_ASSERT(_sapp.x11.display);
+ const char* cursor_theme = XcursorGetTheme(_sapp.x11.display);
+ const int size = XcursorGetDefaultSize(_sapp.x11.display);
+ _sapp_x11_create_standard_cursor(SAPP_MOUSECURSOR_ARROW, "default", cursor_theme, size, XC_left_ptr);
+ _sapp_x11_create_standard_cursor(SAPP_MOUSECURSOR_IBEAM, "text", cursor_theme, size, XC_xterm);
+ _sapp_x11_create_standard_cursor(SAPP_MOUSECURSOR_CROSSHAIR, "crosshair", cursor_theme, size, XC_crosshair);
+ _sapp_x11_create_standard_cursor(SAPP_MOUSECURSOR_POINTING_HAND, "pointer", cursor_theme, size, XC_hand2);
+ _sapp_x11_create_standard_cursor(SAPP_MOUSECURSOR_RESIZE_EW, "ew-resize", cursor_theme, size, XC_sb_h_double_arrow);
+ _sapp_x11_create_standard_cursor(SAPP_MOUSECURSOR_RESIZE_NS, "ns-resize", cursor_theme, size, XC_sb_v_double_arrow);
+ _sapp_x11_create_standard_cursor(SAPP_MOUSECURSOR_RESIZE_NWSE, "nwse-resize", cursor_theme, size, 0);
+ _sapp_x11_create_standard_cursor(SAPP_MOUSECURSOR_RESIZE_NESW, "nesw-resize", cursor_theme, size, 0);
+ _sapp_x11_create_standard_cursor(SAPP_MOUSECURSOR_RESIZE_ALL, "all-scroll", cursor_theme, size, XC_fleur);
+ _sapp_x11_create_standard_cursor(SAPP_MOUSECURSOR_NOT_ALLOWED, "no-allowed", cursor_theme, size, 0);
+ _sapp_x11_create_hidden_cursor();
+}
+
+_SOKOL_PRIVATE void _sapp_x11_destroy_cursors(void) {
+ SOKOL_ASSERT(_sapp.x11.display);
+ if (_sapp.x11.hidden_cursor) {
+ XFreeCursor(_sapp.x11.display, _sapp.x11.hidden_cursor);
+ _sapp.x11.hidden_cursor = 0;
+ }
+ for (int i = 0; i < _SAPP_MOUSECURSOR_NUM; i++) {
+ if (_sapp.x11.cursors[i]) {
+ XFreeCursor(_sapp.x11.display, _sapp.x11.cursors[i]);
+ _sapp.x11.cursors[i] = 0;
+ }
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_x11_toggle_fullscreen(void) {
+ _sapp.fullscreen = !_sapp.fullscreen;
+ _sapp_x11_set_fullscreen(_sapp.fullscreen);
+ _sapp_x11_query_window_size();
+}
+
+_SOKOL_PRIVATE void _sapp_x11_update_cursor(sapp_mouse_cursor cursor, bool shown) {
+ SOKOL_ASSERT((cursor >= 0) && (cursor < _SAPP_MOUSECURSOR_NUM));
+ if (shown) {
+ if (_sapp.x11.cursors[cursor]) {
+ XDefineCursor(_sapp.x11.display, _sapp.x11.window, _sapp.x11.cursors[cursor]);
+ }
+ else {
+ XUndefineCursor(_sapp.x11.display, _sapp.x11.window);
+ }
+ }
+ else {
+ XDefineCursor(_sapp.x11.display, _sapp.x11.window, _sapp.x11.hidden_cursor);
+ }
+ XFlush(_sapp.x11.display);
+}
+
+_SOKOL_PRIVATE void _sapp_x11_lock_mouse(bool lock) {
+ if (lock == _sapp.mouse.locked) {
+ return;
+ }
+ _sapp.mouse.dx = 0.0f;
+ _sapp.mouse.dy = 0.0f;
+ _sapp.mouse.locked = lock;
+ if (_sapp.mouse.locked) {
+ if (_sapp.x11.xi.available) {
+ XIEventMask em;
+ unsigned char mask[XIMaskLen(XI_RawMotion)] = { 0 }; // XIMaskLen is a macro
+ em.deviceid = XIAllMasterDevices;
+ em.mask_len = sizeof(mask);
+ em.mask = mask;
+ XISetMask(mask, XI_RawMotion);
+ XISelectEvents(_sapp.x11.display, _sapp.x11.root, &em, 1);
+ }
+ XGrabPointer(_sapp.x11.display, // display
+ _sapp.x11.window, // grab_window
+ True, // owner_events
+ ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // event_mask
+ GrabModeAsync, // pointer_mode
+ GrabModeAsync, // keyboard_mode
+ _sapp.x11.window, // confine_to
+ _sapp.x11.hidden_cursor, // cursor
+ CurrentTime); // time
+ }
+ else {
+ if (_sapp.x11.xi.available) {
+ XIEventMask em;
+ unsigned char mask[] = { 0 };
+ em.deviceid = XIAllMasterDevices;
+ em.mask_len = sizeof(mask);
+ em.mask = mask;
+ XISelectEvents(_sapp.x11.display, _sapp.x11.root, &em, 1);
+ }
+ XWarpPointer(_sapp.x11.display, None, _sapp.x11.window, 0, 0, 0, 0, (int) _sapp.mouse.x, _sapp.mouse.y);
+ XUngrabPointer(_sapp.x11.display, CurrentTime);
+ }
+ XFlush(_sapp.x11.display);
+}
+
+_SOKOL_PRIVATE void _sapp_x11_update_window_title(void) {
+ Xutf8SetWMProperties(_sapp.x11.display,
+ _sapp.x11.window,
+ _sapp.window_title, _sapp.window_title,
+ NULL, 0, NULL, NULL, NULL);
+ XChangeProperty(_sapp.x11.display, _sapp.x11.window,
+ _sapp.x11.NET_WM_NAME, _sapp.x11.UTF8_STRING, 8,
+ PropModeReplace,
+ (unsigned char*)_sapp.window_title,
+ strlen(_sapp.window_title));
+ XChangeProperty(_sapp.x11.display, _sapp.x11.window,
+ _sapp.x11.NET_WM_ICON_NAME, _sapp.x11.UTF8_STRING, 8,
+ PropModeReplace,
+ (unsigned char*)_sapp.window_title,
+ strlen(_sapp.window_title));
+ XFlush(_sapp.x11.display);
+}
+
+_SOKOL_PRIVATE void _sapp_x11_set_icon(const sapp_icon_desc* icon_desc, int num_images) {
+ SOKOL_ASSERT((num_images > 0) && (num_images <= SAPP_MAX_ICONIMAGES));
+ int long_count = 0;
+ for (int i = 0; i < num_images; i++) {
+ const sapp_image_desc* img_desc = &icon_desc->images[i];
+ long_count += 2 + (img_desc->width * img_desc->height);
+ }
+ long* icon_data = (long*) _sapp_malloc_clear((size_t)long_count * sizeof(long));
+ SOKOL_ASSERT(icon_data);
+ long* dst = icon_data;
+ for (int img_index = 0; img_index < num_images; img_index++) {
+ const sapp_image_desc* img_desc = &icon_desc->images[img_index];
+ const uint8_t* src = (const uint8_t*) img_desc->pixels.ptr;
+ *dst++ = img_desc->width;
+ *dst++ = img_desc->height;
+ const int num_pixels = img_desc->width * img_desc->height;
+ for (int pixel_index = 0; pixel_index < num_pixels; pixel_index++) {
+ *dst++ = ((long)(src[pixel_index * 4 + 0]) << 16) |
+ ((long)(src[pixel_index * 4 + 1]) << 8) |
+ ((long)(src[pixel_index * 4 + 2]) << 0) |
+ ((long)(src[pixel_index * 4 + 3]) << 24);
+ }
+ }
+ XChangeProperty(_sapp.x11.display, _sapp.x11.window,
+ _sapp.x11.NET_WM_ICON,
+ XA_CARDINAL, 32,
+ PropModeReplace,
+ (unsigned char*)icon_data,
+ long_count);
+ _sapp_free(icon_data);
+ XFlush(_sapp.x11.display);
+}
+
+_SOKOL_PRIVATE void _sapp_x11_create_window(Visual* visual, int depth) {
+ _sapp.x11.colormap = XCreateColormap(_sapp.x11.display, _sapp.x11.root, visual, AllocNone);
+ XSetWindowAttributes wa;
+ _sapp_clear(&wa, sizeof(wa));
+ const uint32_t wamask = CWBorderPixel | CWColormap | CWEventMask;
+ wa.colormap = _sapp.x11.colormap;
+ wa.border_pixel = 0;
+ wa.event_mask = StructureNotifyMask | KeyPressMask | KeyReleaseMask |
+ PointerMotionMask | ButtonPressMask | ButtonReleaseMask |
+ ExposureMask | FocusChangeMask | VisibilityChangeMask |
+ EnterWindowMask | LeaveWindowMask | PropertyChangeMask;
+
+ int display_width = DisplayWidth(_sapp.x11.display, _sapp.x11.screen);
+ int display_height = DisplayHeight(_sapp.x11.display, _sapp.x11.screen);
+ int window_width = _sapp.window_width;
+ int window_height = _sapp.window_height;
+ if (0 == window_width) {
+ window_width = (display_width * 4) / 5;
+ }
+ if (0 == window_height) {
+ window_height = (display_height * 4) / 5;
+ }
+ int window_xpos = (display_width - window_width) / 2;
+ int window_ypos = (display_height - window_height) / 2;
+ if (window_xpos < 0) {
+ window_xpos = 0;
+ }
+ if (window_ypos < 0) {
+ window_ypos = 0;
+ }
+ _sapp_x11_grab_error_handler();
+ _sapp.x11.window = XCreateWindow(_sapp.x11.display,
+ _sapp.x11.root,
+ window_xpos,
+ window_ypos,
+ (uint32_t)window_width,
+ (uint32_t)window_height,
+ 0, /* border width */
+ depth, /* color depth */
+ InputOutput,
+ visual,
+ wamask,
+ &wa);
+ _sapp_x11_release_error_handler();
+ if (!_sapp.x11.window) {
+ _SAPP_PANIC(LINUX_X11_CREATE_WINDOW_FAILED);
+ }
+ Atom protocols[] = {
+ _sapp.x11.WM_DELETE_WINDOW
+ };
+ XSetWMProtocols(_sapp.x11.display, _sapp.x11.window, protocols, 1);
+
+ XSizeHints* hints = XAllocSizeHints();
+ hints->flags = (PWinGravity | PPosition | PSize);
+ hints->win_gravity = StaticGravity;
+ hints->x = window_xpos;
+ hints->y = window_ypos;
+ hints->width = window_width;
+ hints->height = window_height;
+ XSetWMNormalHints(_sapp.x11.display, _sapp.x11.window, hints);
+ XFree(hints);
+
+ /* announce support for drag'n'drop */
+ if (_sapp.drop.enabled) {
+ const Atom version = _SAPP_X11_XDND_VERSION;
+ XChangeProperty(_sapp.x11.display, _sapp.x11.window, _sapp.x11.xdnd.XdndAware, XA_ATOM, 32, PropModeReplace, (unsigned char*) &version, 1);
+ }
+ _sapp_x11_update_window_title();
+ _sapp_x11_query_window_size();
+}
+
+_SOKOL_PRIVATE void _sapp_x11_destroy_window(void) {
+ if (_sapp.x11.window) {
+ XUnmapWindow(_sapp.x11.display, _sapp.x11.window);
+ XDestroyWindow(_sapp.x11.display, _sapp.x11.window);
+ _sapp.x11.window = 0;
+ }
+ if (_sapp.x11.colormap) {
+ XFreeColormap(_sapp.x11.display, _sapp.x11.colormap);
+ _sapp.x11.colormap = 0;
+ }
+ XFlush(_sapp.x11.display);
+}
+
+_SOKOL_PRIVATE bool _sapp_x11_window_visible(void) {
+ XWindowAttributes wa;
+ XGetWindowAttributes(_sapp.x11.display, _sapp.x11.window, &wa);
+ return wa.map_state == IsViewable;
+}
+
+_SOKOL_PRIVATE void _sapp_x11_show_window(void) {
+ if (!_sapp_x11_window_visible()) {
+ XMapWindow(_sapp.x11.display, _sapp.x11.window);
+ XRaiseWindow(_sapp.x11.display, _sapp.x11.window);
+ XFlush(_sapp.x11.display);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_x11_hide_window(void) {
+ XUnmapWindow(_sapp.x11.display, _sapp.x11.window);
+ XFlush(_sapp.x11.display);
+}
+
+_SOKOL_PRIVATE unsigned long _sapp_x11_get_window_property(Window window, Atom property, Atom type, unsigned char** value) {
+ Atom actualType;
+ int actualFormat;
+ unsigned long itemCount, bytesAfter;
+ XGetWindowProperty(_sapp.x11.display,
+ window,
+ property,
+ 0,
+ LONG_MAX,
+ False,
+ type,
+ &actualType,
+ &actualFormat,
+ &itemCount,
+ &bytesAfter,
+ value);
+ return itemCount;
+}
+
+_SOKOL_PRIVATE int _sapp_x11_get_window_state(void) {
+ int result = WithdrawnState;
+ struct {
+ CARD32 state;
+ Window icon;
+ } *state = NULL;
+
+ if (_sapp_x11_get_window_property(_sapp.x11.window, _sapp.x11.WM_STATE, _sapp.x11.WM_STATE, (unsigned char**)&state) >= 2) {
+ result = (int)state->state;
+ }
+ if (state) {
+ XFree(state);
+ }
+ return result;
+}
+
+_SOKOL_PRIVATE uint32_t _sapp_x11_key_modifier_bit(sapp_keycode key) {
+ switch (key) {
+ case SAPP_KEYCODE_LEFT_SHIFT:
+ case SAPP_KEYCODE_RIGHT_SHIFT:
+ return SAPP_MODIFIER_SHIFT;
+ case SAPP_KEYCODE_LEFT_CONTROL:
+ case SAPP_KEYCODE_RIGHT_CONTROL:
+ return SAPP_MODIFIER_CTRL;
+ case SAPP_KEYCODE_LEFT_ALT:
+ case SAPP_KEYCODE_RIGHT_ALT:
+ return SAPP_MODIFIER_ALT;
+ case SAPP_KEYCODE_LEFT_SUPER:
+ case SAPP_KEYCODE_RIGHT_SUPER:
+ return SAPP_MODIFIER_SUPER;
+ default:
+ return 0;
+ }
+}
+
+_SOKOL_PRIVATE uint32_t _sapp_x11_button_modifier_bit(sapp_mousebutton btn) {
+ switch (btn) {
+ case SAPP_MOUSEBUTTON_LEFT: return SAPP_MODIFIER_LMB;
+ case SAPP_MOUSEBUTTON_RIGHT: return SAPP_MODIFIER_RMB;
+ case SAPP_MOUSEBUTTON_MIDDLE: return SAPP_MODIFIER_MMB;
+ default: return 0;
+ }
+}
+
+_SOKOL_PRIVATE uint32_t _sapp_x11_mods(uint32_t x11_mods) {
+ uint32_t mods = 0;
+ if (x11_mods & ShiftMask) {
+ mods |= SAPP_MODIFIER_SHIFT;
+ }
+ if (x11_mods & ControlMask) {
+ mods |= SAPP_MODIFIER_CTRL;
+ }
+ if (x11_mods & Mod1Mask) {
+ mods |= SAPP_MODIFIER_ALT;
+ }
+ if (x11_mods & Mod4Mask) {
+ mods |= SAPP_MODIFIER_SUPER;
+ }
+ if (x11_mods & Button1Mask) {
+ mods |= SAPP_MODIFIER_LMB;
+ }
+ if (x11_mods & Button2Mask) {
+ mods |= SAPP_MODIFIER_MMB;
+ }
+ if (x11_mods & Button3Mask) {
+ mods |= SAPP_MODIFIER_RMB;
+ }
+ return mods;
+}
+
+_SOKOL_PRIVATE void _sapp_x11_app_event(sapp_event_type type) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(type);
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+_SOKOL_PRIVATE sapp_mousebutton _sapp_x11_translate_button(const XEvent* event) {
+ switch (event->xbutton.button) {
+ case Button1: return SAPP_MOUSEBUTTON_LEFT;
+ case Button2: return SAPP_MOUSEBUTTON_MIDDLE;
+ case Button3: return SAPP_MOUSEBUTTON_RIGHT;
+ default: return SAPP_MOUSEBUTTON_INVALID;
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_x11_mouse_update(int x, int y, bool clear_dxdy) {
+ if (!_sapp.mouse.locked) {
+ const float new_x = (float) x;
+ const float new_y = (float) y;
+ if (clear_dxdy) {
+ _sapp.mouse.dx = 0.0f;
+ _sapp.mouse.dy = 0.0f;
+ } else if (_sapp.mouse.pos_valid) {
+ _sapp.mouse.dx = new_x - _sapp.mouse.x;
+ _sapp.mouse.dy = new_y - _sapp.mouse.y;
+ }
+ _sapp.mouse.x = new_x;
+ _sapp.mouse.y = new_y;
+ _sapp.mouse.pos_valid = true;
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_x11_mouse_event(sapp_event_type type, sapp_mousebutton btn, uint32_t mods) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(type);
+ _sapp.event.mouse_button = btn;
+ _sapp.event.modifiers = mods;
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_x11_scroll_event(float x, float y, uint32_t mods) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(SAPP_EVENTTYPE_MOUSE_SCROLL);
+ _sapp.event.modifiers = mods;
+ _sapp.event.scroll_x = x;
+ _sapp.event.scroll_y = y;
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_x11_key_event(sapp_event_type type, sapp_keycode key, bool repeat, uint32_t mods) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(type);
+ _sapp.event.key_code = key;
+ _sapp.event.key_repeat = repeat;
+ _sapp.event.modifiers = mods;
+ _sapp_call_event(&_sapp.event);
+ /* check if a CLIPBOARD_PASTED event must be sent too */
+ if (_sapp.clipboard.enabled &&
+ (type == SAPP_EVENTTYPE_KEY_DOWN) &&
+ (_sapp.event.modifiers == SAPP_MODIFIER_CTRL) &&
+ (_sapp.event.key_code == SAPP_KEYCODE_V))
+ {
+ _sapp_init_event(SAPP_EVENTTYPE_CLIPBOARD_PASTED);
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+}
+
+_SOKOL_PRIVATE void _sapp_x11_char_event(uint32_t chr, bool repeat, uint32_t mods) {
+ if (_sapp_events_enabled()) {
+ _sapp_init_event(SAPP_EVENTTYPE_CHAR);
+ _sapp.event.char_code = chr;
+ _sapp.event.key_repeat = repeat;
+ _sapp.event.modifiers = mods;
+ _sapp_call_event(&_sapp.event);
+ }
+}
+
+_SOKOL_PRIVATE sapp_keycode _sapp_x11_translate_key(int scancode) {
+ int dummy;
+ KeySym* keysyms = XGetKeyboardMapping(_sapp.x11.display, scancode, 1, &dummy);
+ SOKOL_ASSERT(keysyms);
+ KeySym keysym = keysyms[0];
+ XFree(keysyms);
+ switch (keysym) {
+ case XK_Escape: return SAPP_KEYCODE_ESCAPE;
+ case XK_Tab: return SAPP_KEYCODE_TAB;
+ case XK_Shift_L: return SAPP_KEYCODE_LEFT_SHIFT;
+ case XK_Shift_R: return SAPP_KEYCODE_RIGHT_SHIFT;
+ case XK_Control_L: return SAPP_KEYCODE_LEFT_CONTROL;
+ case XK_Control_R: return SAPP_KEYCODE_RIGHT_CONTROL;
+ case XK_Meta_L:
+ case XK_Alt_L: return SAPP_KEYCODE_LEFT_ALT;
+ case XK_Mode_switch: /* Mapped to Alt_R on many keyboards */
+ case XK_ISO_Level3_Shift: /* AltGr on at least some machines */
+ case XK_Meta_R:
+ case XK_Alt_R: return SAPP_KEYCODE_RIGHT_ALT;
+ case XK_Super_L: return SAPP_KEYCODE_LEFT_SUPER;
+ case XK_Super_R: return SAPP_KEYCODE_RIGHT_SUPER;
+ case XK_Menu: return SAPP_KEYCODE_MENU;
+ case XK_Num_Lock: return SAPP_KEYCODE_NUM_LOCK;
+ case XK_Caps_Lock: return SAPP_KEYCODE_CAPS_LOCK;
+ case XK_Print: return SAPP_KEYCODE_PRINT_SCREEN;
+ case XK_Scroll_Lock: return SAPP_KEYCODE_SCROLL_LOCK;
+ case XK_Pause: return SAPP_KEYCODE_PAUSE;
+ case XK_Delete: return SAPP_KEYCODE_DELETE;
+ case XK_BackSpace: return SAPP_KEYCODE_BACKSPACE;
+ case XK_Return: return SAPP_KEYCODE_ENTER;
+ case XK_Home: return SAPP_KEYCODE_HOME;
+ case XK_End: return SAPP_KEYCODE_END;
+ case XK_Page_Up: return SAPP_KEYCODE_PAGE_UP;
+ case XK_Page_Down: return SAPP_KEYCODE_PAGE_DOWN;
+ case XK_Insert: return SAPP_KEYCODE_INSERT;
+ case XK_Left: return SAPP_KEYCODE_LEFT;
+ case XK_Right: return SAPP_KEYCODE_RIGHT;
+ case XK_Down: return SAPP_KEYCODE_DOWN;
+ case XK_Up: return SAPP_KEYCODE_UP;
+ case XK_F1: return SAPP_KEYCODE_F1;
+ case XK_F2: return SAPP_KEYCODE_F2;
+ case XK_F3: return SAPP_KEYCODE_F3;
+ case XK_F4: return SAPP_KEYCODE_F4;
+ case XK_F5: return SAPP_KEYCODE_F5;
+ case XK_F6: return SAPP_KEYCODE_F6;
+ case XK_F7: return SAPP_KEYCODE_F7;
+ case XK_F8: return SAPP_KEYCODE_F8;
+ case XK_F9: return SAPP_KEYCODE_F9;
+ case XK_F10: return SAPP_KEYCODE_F10;
+ case XK_F11: return SAPP_KEYCODE_F11;
+ case XK_F12: return SAPP_KEYCODE_F12;
+ case XK_F13: return SAPP_KEYCODE_F13;
+ case XK_F14: return SAPP_KEYCODE_F14;
+ case XK_F15: return SAPP_KEYCODE_F15;
+ case XK_F16: return SAPP_KEYCODE_F16;
+ case XK_F17: return SAPP_KEYCODE_F17;
+ case XK_F18: return SAPP_KEYCODE_F18;
+ case XK_F19: return SAPP_KEYCODE_F19;
+ case XK_F20: return SAPP_KEYCODE_F20;
+ case XK_F21: return SAPP_KEYCODE_F21;
+ case XK_F22: return SAPP_KEYCODE_F22;
+ case XK_F23: return SAPP_KEYCODE_F23;
+ case XK_F24: return SAPP_KEYCODE_F24;
+ case XK_F25: return SAPP_KEYCODE_F25;
+
+ case XK_KP_Divide: return SAPP_KEYCODE_KP_DIVIDE;
+ case XK_KP_Multiply: return SAPP_KEYCODE_KP_MULTIPLY;
+ case XK_KP_Subtract: return SAPP_KEYCODE_KP_SUBTRACT;
+ case XK_KP_Add: return SAPP_KEYCODE_KP_ADD;
+
+ case XK_KP_Insert: return SAPP_KEYCODE_KP_0;
+ case XK_KP_End: return SAPP_KEYCODE_KP_1;
+ case XK_KP_Down: return SAPP_KEYCODE_KP_2;
+ case XK_KP_Page_Down: return SAPP_KEYCODE_KP_3;
+ case XK_KP_Left: return SAPP_KEYCODE_KP_4;
+ case XK_KP_Begin: return SAPP_KEYCODE_KP_5;
+ case XK_KP_Right: return SAPP_KEYCODE_KP_6;
+ case XK_KP_Home: return SAPP_KEYCODE_KP_7;
+ case XK_KP_Up: return SAPP_KEYCODE_KP_8;
+ case XK_KP_Page_Up: return SAPP_KEYCODE_KP_9;
+ case XK_KP_Delete: return SAPP_KEYCODE_KP_DECIMAL;
+ case XK_KP_Equal: return SAPP_KEYCODE_KP_EQUAL;
+ case XK_KP_Enter: return SAPP_KEYCODE_KP_ENTER;
+
+ case XK_a: return SAPP_KEYCODE_A;
+ case XK_b: return SAPP_KEYCODE_B;
+ case XK_c: return SAPP_KEYCODE_C;
+ case XK_d: return SAPP_KEYCODE_D;
+ case XK_e: return SAPP_KEYCODE_E;
+ case XK_f: return SAPP_KEYCODE_F;
+ case XK_g: return SAPP_KEYCODE_G;
+ case XK_h: return SAPP_KEYCODE_H;
+ case XK_i: return SAPP_KEYCODE_I;
+ case XK_j: return SAPP_KEYCODE_J;
+ case XK_k: return SAPP_KEYCODE_K;
+ case XK_l: return SAPP_KEYCODE_L;
+ case XK_m: return SAPP_KEYCODE_M;
+ case XK_n: return SAPP_KEYCODE_N;
+ case XK_o: return SAPP_KEYCODE_O;
+ case XK_p: return SAPP_KEYCODE_P;
+ case XK_q: return SAPP_KEYCODE_Q;
+ case XK_r: return SAPP_KEYCODE_R;
+ case XK_s: return SAPP_KEYCODE_S;
+ case XK_t: return SAPP_KEYCODE_T;
+ case XK_u: return SAPP_KEYCODE_U;
+ case XK_v: return SAPP_KEYCODE_V;
+ case XK_w: return SAPP_KEYCODE_W;
+ case XK_x: return SAPP_KEYCODE_X;
+ case XK_y: return SAPP_KEYCODE_Y;
+ case XK_z: return SAPP_KEYCODE_Z;
+ case XK_1: return SAPP_KEYCODE_1;
+ case XK_2: return SAPP_KEYCODE_2;
+ case XK_3: return SAPP_KEYCODE_3;
+ case XK_4: return SAPP_KEYCODE_4;
+ case XK_5: return SAPP_KEYCODE_5;
+ case XK_6: return SAPP_KEYCODE_6;
+ case XK_7: return SAPP_KEYCODE_7;
+ case XK_8: return SAPP_KEYCODE_8;
+ case XK_9: return SAPP_KEYCODE_9;
+ case XK_0: return SAPP_KEYCODE_0;
+ case XK_space: return SAPP_KEYCODE_SPACE;
+ case XK_minus: return SAPP_KEYCODE_MINUS;
+ case XK_equal: return SAPP_KEYCODE_EQUAL;
+ case XK_bracketleft: return SAPP_KEYCODE_LEFT_BRACKET;
+ case XK_bracketright: return SAPP_KEYCODE_RIGHT_BRACKET;
+ case XK_backslash: return SAPP_KEYCODE_BACKSLASH;
+ case XK_semicolon: return SAPP_KEYCODE_SEMICOLON;
+ case XK_apostrophe: return SAPP_KEYCODE_APOSTROPHE;
+ case XK_grave: return SAPP_KEYCODE_GRAVE_ACCENT;
+ case XK_comma: return SAPP_KEYCODE_COMMA;
+ case XK_period: return SAPP_KEYCODE_PERIOD;
+ case XK_slash: return SAPP_KEYCODE_SLASH;
+ case XK_less: return SAPP_KEYCODE_WORLD_1; /* At least in some layouts... */
+ default: return SAPP_KEYCODE_INVALID;
+ }
+}
+
+_SOKOL_PRIVATE int32_t _sapp_x11_keysym_to_unicode(KeySym keysym) {
+ int min = 0;
+ int max = sizeof(_sapp_x11_keysymtab) / sizeof(struct _sapp_x11_codepair) - 1;
+ int mid;
+
+ /* First check for Latin-1 characters (1:1 mapping) */
+ if ((keysym >= 0x0020 && keysym <= 0x007e) ||
+ (keysym >= 0x00a0 && keysym <= 0x00ff))
+ {
+ return keysym;
+ }
+
+ /* Also check for directly encoded 24-bit UCS characters */
+ if ((keysym & 0xff000000) == 0x01000000) {
+ return keysym & 0x00ffffff;
+ }
+
+ /* Binary search in table */
+ while (max >= min) {
+ mid = (min + max) / 2;
+ if (_sapp_x11_keysymtab[mid].keysym < keysym) {
+ min = mid + 1;
+ }
+ else if (_sapp_x11_keysymtab[mid].keysym > keysym) {
+ max = mid - 1;
+ }
+ else {
+ return _sapp_x11_keysymtab[mid].ucs;
+ }
+ }
+
+ /* No matching Unicode value found */
+ return -1;
+}
+
+_SOKOL_PRIVATE bool _sapp_x11_parse_dropped_files_list(const char* src) {
+ SOKOL_ASSERT(src);
+ SOKOL_ASSERT(_sapp.drop.buffer);
+
+ _sapp_clear_drop_buffer();
+ _sapp.drop.num_files = 0;
+
+ /*
+ src is (potentially percent-encoded) string made of one or multiple paths
+ separated by \r\n, each path starting with 'file://'
+ */
+ bool err = false;
+ int src_count = 0;
+ char src_chr = 0;
+ char* dst_ptr = _sapp.drop.buffer;
+ const char* dst_end_ptr = dst_ptr + (_sapp.drop.max_path_length - 1); // room for terminating 0
+ while (0 != (src_chr = *src++)) {
+ src_count++;
+ char dst_chr = 0;
+ /* check leading 'file://' */
+ if (src_count <= 7) {
+ if (((src_count == 1) && (src_chr != 'f')) ||
+ ((src_count == 2) && (src_chr != 'i')) ||
+ ((src_count == 3) && (src_chr != 'l')) ||
+ ((src_count == 4) && (src_chr != 'e')) ||
+ ((src_count == 5) && (src_chr != ':')) ||
+ ((src_count == 6) && (src_chr != '/')) ||
+ ((src_count == 7) && (src_chr != '/')))
+ {
+ _SAPP_ERROR(LINUX_X11_DROPPED_FILE_URI_WRONG_SCHEME);
+ err = true;
+ break;
+ }
+ }
+ else if (src_chr == '\r') {
+ // skip
+ }
+ else if (src_chr == '\n') {
+ src_count = 0;
+ _sapp.drop.num_files++;
+ // too many files is not an error
+ if (_sapp.drop.num_files >= _sapp.drop.max_files) {
+ break;
+ }
+ dst_ptr = _sapp.drop.buffer + _sapp.drop.num_files * _sapp.drop.max_path_length;
+ dst_end_ptr = dst_ptr + (_sapp.drop.max_path_length - 1);
+ }
+ else if ((src_chr == '%') && src[0] && src[1]) {
+ // a percent-encoded byte (most likely UTF-8 multibyte sequence)
+ const char digits[3] = { src[0], src[1], 0 };
+ src += 2;
+ dst_chr = (char) strtol(digits, 0, 16);
+ }
+ else {
+ dst_chr = src_chr;
+ }
+ if (dst_chr) {
+ // dst_end_ptr already has adjustment for terminating zero
+ if (dst_ptr < dst_end_ptr) {
+ *dst_ptr++ = dst_chr;
+ }
+ else {
+ _SAPP_ERROR(DROPPED_FILE_PATH_TOO_LONG);
+ err = true;
+ break;
+ }
+ }
+ }
+ if (err) {
+ _sapp_clear_drop_buffer();
+ _sapp.drop.num_files = 0;
+ return false;
+ }
+ else {
+ return true;
+ }
+}
+
+// XLib manual says keycodes are in the range [8, 255] inclusive.
+// https://tronche.com/gui/x/xlib/input/keyboard-encoding.html
+static bool _sapp_x11_keycodes[256];
+
+_SOKOL_PRIVATE void _sapp_x11_process_event(XEvent* event) {
+ Bool filtered = XFilterEvent(event, None);
+ switch (event->type) {
+ case GenericEvent:
+ if (_sapp.mouse.locked && _sapp.x11.xi.available) {
+ if (event->xcookie.extension == _sapp.x11.xi.major_opcode) {
+ if (XGetEventData(_sapp.x11.display, &event->xcookie)) {
+ if (event->xcookie.evtype == XI_RawMotion) {
+ XIRawEvent* re = (XIRawEvent*) event->xcookie.data;
+ if (re->valuators.mask_len) {
+ const double* values = re->raw_values;
+ if (XIMaskIsSet(re->valuators.mask, 0)) {
+ _sapp.mouse.dx = (float) *values;
+ values++;
+ }
+ if (XIMaskIsSet(re->valuators.mask, 1)) {
+ _sapp.mouse.dy = (float) *values;
+ }
+ _sapp_x11_mouse_event(SAPP_EVENTTYPE_MOUSE_MOVE, SAPP_MOUSEBUTTON_INVALID, _sapp_x11_mods(event->xmotion.state));
+ }
+ }
+ XFreeEventData(_sapp.x11.display, &event->xcookie);
+ }
+ }
+ }
+ break;
+ case FocusIn:
+ // NOTE: ignoring NotifyGrab and NotifyUngrab is same behaviour as GLFW
+ if ((event->xfocus.mode != NotifyGrab) && (event->xfocus.mode != NotifyUngrab)) {
+ _sapp_x11_app_event(SAPP_EVENTTYPE_FOCUSED);
+ }
+ break;
+ case FocusOut:
+ /* if focus is lost for any reason, and we're in mouse locked mode, disable mouse lock */
+ if (_sapp.mouse.locked) {
+ _sapp_x11_lock_mouse(false);
+ }
+ // NOTE: ignoring NotifyGrab and NotifyUngrab is same behaviour as GLFW
+ if ((event->xfocus.mode != NotifyGrab) && (event->xfocus.mode != NotifyUngrab)) {
+ _sapp_x11_app_event(SAPP_EVENTTYPE_UNFOCUSED);
+ }
+ break;
+ case KeyPress:
+ {
+ int keycode = (int)event->xkey.keycode;
+ const sapp_keycode key = _sapp_x11_translate_key(keycode);
+ bool repeat = _sapp_x11_keycodes[keycode & 0xFF];
+ _sapp_x11_keycodes[keycode & 0xFF] = true;
+ uint32_t mods = _sapp_x11_mods(event->xkey.state);
+ // X11 doesn't set modifier bit on key down, so emulate that
+ mods |= _sapp_x11_key_modifier_bit(key);
+ if (key != SAPP_KEYCODE_INVALID) {
+ _sapp_x11_key_event(SAPP_EVENTTYPE_KEY_DOWN, key, repeat, mods);
+ }
+ KeySym keysym;
+ XLookupString(&event->xkey, NULL, 0, &keysym, NULL);
+ int32_t chr = _sapp_x11_keysym_to_unicode(keysym);
+ if (chr > 0) {
+ _sapp_x11_char_event((uint32_t)chr, repeat, mods);
+ }
+ }
+ break;
+ case KeyRelease:
+ {
+ int keycode = (int)event->xkey.keycode;
+ const sapp_keycode key = _sapp_x11_translate_key(keycode);
+ _sapp_x11_keycodes[keycode & 0xFF] = false;
+ if (key != SAPP_KEYCODE_INVALID) {
+ uint32_t mods = _sapp_x11_mods(event->xkey.state);
+ // X11 doesn't clear modifier bit on key up, so emulate that
+ mods &= ~_sapp_x11_key_modifier_bit(key);
+ _sapp_x11_key_event(SAPP_EVENTTYPE_KEY_UP, key, false, mods);
+ }
+ }
+ break;
+ case ButtonPress:
+ {
+ _sapp_x11_mouse_update(event->xbutton.x, event->xbutton.y, false);
+ const sapp_mousebutton btn = _sapp_x11_translate_button(event);
+ uint32_t mods = _sapp_x11_mods(event->xbutton.state);
+ // X11 doesn't set modifier bit on button down, so emulate that
+ mods |= _sapp_x11_button_modifier_bit(btn);
+ if (btn != SAPP_MOUSEBUTTON_INVALID) {
+ _sapp_x11_mouse_event(SAPP_EVENTTYPE_MOUSE_DOWN, btn, mods);
+ _sapp.x11.mouse_buttons |= (1 << btn);
+ }
+ else {
+ /* might be a scroll event */
+ switch (event->xbutton.button) {
+ case 4: _sapp_x11_scroll_event(0.0f, 1.0f, mods); break;
+ case 5: _sapp_x11_scroll_event(0.0f, -1.0f, mods); break;
+ case 6: _sapp_x11_scroll_event(1.0f, 0.0f, mods); break;
+ case 7: _sapp_x11_scroll_event(-1.0f, 0.0f, mods); break;
+ }
+ }
+ }
+ break;
+ case ButtonRelease:
+ {
+ _sapp_x11_mouse_update(event->xbutton.x, event->xbutton.y, false);
+ const sapp_mousebutton btn = _sapp_x11_translate_button(event);
+ if (btn != SAPP_MOUSEBUTTON_INVALID) {
+ uint32_t mods = _sapp_x11_mods(event->xbutton.state);
+ // X11 doesn't clear modifier bit on button up, so emulate that
+ mods &= ~_sapp_x11_button_modifier_bit(btn);
+ _sapp_x11_mouse_event(SAPP_EVENTTYPE_MOUSE_UP, btn, mods);
+ _sapp.x11.mouse_buttons &= ~(1 << btn);
+ }
+ }
+ break;
+ case EnterNotify:
+ /* don't send enter/leave events while mouse button held down */
+ if (0 == _sapp.x11.mouse_buttons) {
+ _sapp_x11_mouse_update(event->xcrossing.x, event->xcrossing.y, true);
+ _sapp_x11_mouse_event(SAPP_EVENTTYPE_MOUSE_ENTER, SAPP_MOUSEBUTTON_INVALID, _sapp_x11_mods(event->xcrossing.state));
+ }
+ break;
+ case LeaveNotify:
+ if (0 == _sapp.x11.mouse_buttons) {
+ _sapp_x11_mouse_update(event->xcrossing.x, event->xcrossing.y, true);
+ _sapp_x11_mouse_event(SAPP_EVENTTYPE_MOUSE_LEAVE, SAPP_MOUSEBUTTON_INVALID, _sapp_x11_mods(event->xcrossing.state));
+ }
+ break;
+ case MotionNotify:
+ if (!_sapp.mouse.locked) {
+ _sapp_x11_mouse_update(event->xmotion.x, event->xmotion.y, false);
+ _sapp_x11_mouse_event(SAPP_EVENTTYPE_MOUSE_MOVE, SAPP_MOUSEBUTTON_INVALID, _sapp_x11_mods(event->xmotion.state));
+ }
+ break;
+ case ConfigureNotify:
+ if ((event->xconfigure.width != _sapp.window_width) || (event->xconfigure.height != _sapp.window_height)) {
+ _sapp.window_width = event->xconfigure.width;
+ _sapp.window_height = event->xconfigure.height;
+ _sapp.framebuffer_width = _sapp.window_width;
+ _sapp.framebuffer_height = _sapp.window_height;
+ _sapp_x11_app_event(SAPP_EVENTTYPE_RESIZED);
+ }
+ break;
+ case PropertyNotify:
+ if (event->xproperty.state == PropertyNewValue) {
+ if (event->xproperty.atom == _sapp.x11.WM_STATE) {
+ const int state = _sapp_x11_get_window_state();
+ if (state != _sapp.x11.window_state) {
+ _sapp.x11.window_state = state;
+ if (state == IconicState) {
+ _sapp_x11_app_event(SAPP_EVENTTYPE_ICONIFIED);
+ }
+ else if (state == NormalState) {
+ _sapp_x11_app_event(SAPP_EVENTTYPE_RESTORED);
+ }
+ }
+ }
+ }
+ break;
+ case ClientMessage:
+ if (filtered) {
+ return;
+ }
+ if (event->xclient.message_type == _sapp.x11.WM_PROTOCOLS) {
+ const Atom protocol = (Atom)event->xclient.data.l[0];
+ if (protocol == _sapp.x11.WM_DELETE_WINDOW) {
+ _sapp.quit_requested = true;
+ }
+ }
+ else if (event->xclient.message_type == _sapp.x11.xdnd.XdndEnter) {
+ const bool is_list = 0 != (event->xclient.data.l[1] & 1);
+ _sapp.x11.xdnd.source = (Window)event->xclient.data.l[0];
+ _sapp.x11.xdnd.version = event->xclient.data.l[1] >> 24;
+ _sapp.x11.xdnd.format = None;
+ if (_sapp.x11.xdnd.version > _SAPP_X11_XDND_VERSION) {
+ return;
+ }
+ uint32_t count = 0;
+ Atom* formats = 0;
+ if (is_list) {
+ count = _sapp_x11_get_window_property(_sapp.x11.xdnd.source, _sapp.x11.xdnd.XdndTypeList, XA_ATOM, (unsigned char**)&formats);
+ }
+ else {
+ count = 3;
+ formats = (Atom*) event->xclient.data.l + 2;
+ }
+ for (uint32_t i = 0; i < count; i++) {
+ if (formats[i] == _sapp.x11.xdnd.text_uri_list) {
+ _sapp.x11.xdnd.format = _sapp.x11.xdnd.text_uri_list;
+ break;
+ }
+ }
+ if (is_list && formats) {
+ XFree(formats);
+ }
+ }
+ else if (event->xclient.message_type == _sapp.x11.xdnd.XdndDrop) {
+ if (_sapp.x11.xdnd.version > _SAPP_X11_XDND_VERSION) {
+ return;
+ }
+ Time time = CurrentTime;
+ if (_sapp.x11.xdnd.format) {
+ if (_sapp.x11.xdnd.version >= 1) {
+ time = (Time)event->xclient.data.l[2];
+ }
+ XConvertSelection(_sapp.x11.display,
+ _sapp.x11.xdnd.XdndSelection,
+ _sapp.x11.xdnd.format,
+ _sapp.x11.xdnd.XdndSelection,
+ _sapp.x11.window,
+ time);
+ }
+ else if (_sapp.x11.xdnd.version >= 2) {
+ XEvent reply;
+ _sapp_clear(&reply, sizeof(reply));
+ reply.type = ClientMessage;
+ reply.xclient.window = _sapp.x11.xdnd.source;
+ reply.xclient.message_type = _sapp.x11.xdnd.XdndFinished;
+ reply.xclient.format = 32;
+ reply.xclient.data.l[0] = (long)_sapp.x11.window;
+ reply.xclient.data.l[1] = 0; // drag was rejected
+ reply.xclient.data.l[2] = None;
+ XSendEvent(_sapp.x11.display, _sapp.x11.xdnd.source, False, NoEventMask, &reply);
+ XFlush(_sapp.x11.display);
+ }
+ }
+ else if (event->xclient.message_type == _sapp.x11.xdnd.XdndPosition) {
+ /* drag operation has moved over the window
+ FIXME: we could track the mouse position here, but
+ this isn't implemented on other platforms either so far
+ */
+ if (_sapp.x11.xdnd.version > _SAPP_X11_XDND_VERSION) {
+ return;
+ }
+ XEvent reply;
+ _sapp_clear(&reply, sizeof(reply));
+ reply.type = ClientMessage;
+ reply.xclient.window = _sapp.x11.xdnd.source;
+ reply.xclient.message_type = _sapp.x11.xdnd.XdndStatus;
+ reply.xclient.format = 32;
+ reply.xclient.data.l[0] = (long)_sapp.x11.window;
+ if (_sapp.x11.xdnd.format) {
+ /* reply that we are ready to copy the dragged data */
+ reply.xclient.data.l[1] = 1; // accept with no rectangle
+ if (_sapp.x11.xdnd.version >= 2) {
+ reply.xclient.data.l[4] = (long)_sapp.x11.xdnd.XdndActionCopy;
+ }
+ }
+ XSendEvent(_sapp.x11.display, _sapp.x11.xdnd.source, False, NoEventMask, &reply);
+ XFlush(_sapp.x11.display);
+ }
+ break;
+ case SelectionNotify:
+ if (event->xselection.property == _sapp.x11.xdnd.XdndSelection) {
+ char* data = 0;
+ uint32_t result = _sapp_x11_get_window_property(event->xselection.requestor,
+ event->xselection.property,
+ event->xselection.target,
+ (unsigned char**) &data);
+ if (_sapp.drop.enabled && result) {
+ if (_sapp_x11_parse_dropped_files_list(data)) {
+ _sapp.mouse.dx = 0.0f;
+ _sapp.mouse.dy = 0.0f;
+ if (_sapp_events_enabled()) {
+ // FIXME: Figure out how to get modifier key state here.
+ // The XSelection event has no 'state' item, and
+ // XQueryKeymap() always returns a zeroed array.
+ _sapp_init_event(SAPP_EVENTTYPE_FILES_DROPPED);
+ _sapp_call_event(&_sapp.event);
+ }
+ }
+ }
+ if (_sapp.x11.xdnd.version >= 2) {
+ XEvent reply;
+ _sapp_clear(&reply, sizeof(reply));
+ reply.type = ClientMessage;
+ reply.xclient.window = _sapp.x11.xdnd.source;
+ reply.xclient.message_type = _sapp.x11.xdnd.XdndFinished;
+ reply.xclient.format = 32;
+ reply.xclient.data.l[0] = (long)_sapp.x11.window;
+ reply.xclient.data.l[1] = result;
+ reply.xclient.data.l[2] = (long)_sapp.x11.xdnd.XdndActionCopy;
+ XSendEvent(_sapp.x11.display, _sapp.x11.xdnd.source, False, NoEventMask, &reply);
+ XFlush(_sapp.x11.display);
+ }
+ }
+ break;
+ case DestroyNotify:
+ break;
+ }
+}
+
+#if !defined(_SAPP_GLX)
+
+_SOKOL_PRIVATE void _sapp_egl_init(void) {
+#if defined(SOKOL_GLCORE33)
+ if (!eglBindAPI(EGL_OPENGL_API)) {
+ _SAPP_PANIC(LINUX_EGL_BIND_OPENGL_API_FAILED);
+ }
+#else
+ if (!eglBindAPI(EGL_OPENGL_ES_API)) {
+ _SAPP_PANIC(LINUX_EGL_BIND_OPENGL_ES_API_FAILED);
+ }
+#endif
+
+ _sapp.egl.display = eglGetDisplay((EGLNativeDisplayType)_sapp.x11.display);
+ if (EGL_NO_DISPLAY == _sapp.egl.display) {
+ _SAPP_PANIC(LINUX_EGL_GET_DISPLAY_FAILED);
+ }
+
+ EGLint major, minor;
+ if (!eglInitialize(_sapp.egl.display, &major, &minor)) {
+ _SAPP_PANIC(LINUX_EGL_INITIALIZE_FAILED);
+ }
+
+ EGLint sample_count = _sapp.desc.sample_count > 1 ? _sapp.desc.sample_count : 0;
+ EGLint alpha_size = _sapp.desc.alpha ? 8 : 0;
+ const EGLint config_attrs[] = {
+ EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+ #if defined(SOKOL_GLCORE33)
+ EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
+ #elif defined(SOKOL_GLES3)
+ EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT,
+ #endif
+ EGL_RED_SIZE, 8,
+ EGL_GREEN_SIZE, 8,
+ EGL_BLUE_SIZE, 8,
+ EGL_ALPHA_SIZE, alpha_size,
+ EGL_DEPTH_SIZE, 24,
+ EGL_STENCIL_SIZE, 8,
+ EGL_SAMPLE_BUFFERS, _sapp.desc.sample_count > 1 ? 1 : 0,
+ EGL_SAMPLES, sample_count,
+ EGL_NONE,
+ };
+
+ EGLConfig egl_configs[32];
+ EGLint config_count;
+ if (!eglChooseConfig(_sapp.egl.display, config_attrs, egl_configs, 32, &config_count) || config_count == 0) {
+ _SAPP_PANIC(LINUX_EGL_NO_CONFIGS);
+ }
+
+ EGLConfig config = egl_configs[0];
+ for (int i = 0; i < config_count; ++i) {
+ EGLConfig c = egl_configs[i];
+ EGLint r, g, b, a, d, s, n;
+ if (eglGetConfigAttrib(_sapp.egl.display, c, EGL_RED_SIZE, &r) &&
+ eglGetConfigAttrib(_sapp.egl.display, c, EGL_GREEN_SIZE, &g) &&
+ eglGetConfigAttrib(_sapp.egl.display, c, EGL_BLUE_SIZE, &b) &&
+ eglGetConfigAttrib(_sapp.egl.display, c, EGL_ALPHA_SIZE, &a) &&
+ eglGetConfigAttrib(_sapp.egl.display, c, EGL_DEPTH_SIZE, &d) &&
+ eglGetConfigAttrib(_sapp.egl.display, c, EGL_STENCIL_SIZE, &s) &&
+ eglGetConfigAttrib(_sapp.egl.display, c, EGL_SAMPLES, &n) &&
+ (r == 8) && (g == 8) && (b == 8) && (a == alpha_size) && (d == 24) && (s == 8) && (n == sample_count)) {
+ config = c;
+ break;
+ }
+ }
+
+ EGLint visual_id;
+ if (!eglGetConfigAttrib(_sapp.egl.display, config, EGL_NATIVE_VISUAL_ID, &visual_id)) {
+ _SAPP_PANIC(LINUX_EGL_NO_NATIVE_VISUAL);
+ }
+
+ XVisualInfo visual_info_template;
+ _sapp_clear(&visual_info_template, sizeof(visual_info_template));
+ visual_info_template.visualid = (VisualID)visual_id;
+
+ int num_visuals;
+ XVisualInfo* visual_info = XGetVisualInfo(_sapp.x11.display, VisualIDMask, &visual_info_template, &num_visuals);
+ if (!visual_info) {
+ _SAPP_PANIC(LINUX_EGL_GET_VISUAL_INFO_FAILED);
+ }
+
+ _sapp_x11_create_window(visual_info->visual, visual_info->depth);
+ XFree(visual_info);
+
+ _sapp.egl.surface = eglCreateWindowSurface(_sapp.egl.display, config, (EGLNativeWindowType)_sapp.x11.window, NULL);
+ if (EGL_NO_SURFACE == _sapp.egl.surface) {
+ _SAPP_PANIC(LINUX_EGL_CREATE_WINDOW_SURFACE_FAILED);
+ }
+
+ EGLint ctx_attrs[] = {
+ #if defined(SOKOL_GLCORE33)
+ EGL_CONTEXT_MAJOR_VERSION, _sapp.desc.gl_major_version,
+ EGL_CONTEXT_MINOR_VERSION, _sapp.desc.gl_minor_version,
+ EGL_CONTEXT_OPENGL_PROFILE_MASK, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT,
+ #elif defined(SOKOL_GLES3)
+ EGL_CONTEXT_CLIENT_VERSION, 3,
+ #endif
+ EGL_NONE,
+ };
+
+ _sapp.egl.context = eglCreateContext(_sapp.egl.display, config, EGL_NO_CONTEXT, ctx_attrs);
+ if (EGL_NO_CONTEXT == _sapp.egl.context) {
+ _SAPP_PANIC(LINUX_EGL_CREATE_CONTEXT_FAILED);
+ }
+
+ if (!eglMakeCurrent(_sapp.egl.display, _sapp.egl.surface, _sapp.egl.surface, _sapp.egl.context)) {
+ _SAPP_PANIC(LINUX_EGL_MAKE_CURRENT_FAILED);
+ }
+
+ eglSwapInterval(_sapp.egl.display, _sapp.swap_interval);
+}
+
+_SOKOL_PRIVATE void _sapp_egl_destroy(void) {
+ if (_sapp.egl.display != EGL_NO_DISPLAY) {
+ eglMakeCurrent(_sapp.egl.display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+
+ if (_sapp.egl.context != EGL_NO_CONTEXT) {
+ eglDestroyContext(_sapp.egl.display, _sapp.egl.context);
+ _sapp.egl.context = EGL_NO_CONTEXT;
+ }
+
+ if (_sapp.egl.surface != EGL_NO_SURFACE) {
+ eglDestroySurface(_sapp.egl.display, _sapp.egl.surface);
+ _sapp.egl.surface = EGL_NO_SURFACE;
+ }
+
+ eglTerminate(_sapp.egl.display);
+ _sapp.egl.display = EGL_NO_DISPLAY;
+ }
+}
+
+#endif /* _SAPP_GLX */
+
+_SOKOL_PRIVATE void _sapp_linux_run(const sapp_desc* desc) {
+ /* The following lines are here to trigger a linker error instead of an
+ obscure runtime error if the user has forgotten to add -pthread to
+ the compiler or linker options. They have no other purpose.
+ */
+ pthread_attr_t pthread_attr;
+ pthread_attr_init(&pthread_attr);
+ pthread_attr_destroy(&pthread_attr);
+
+ _sapp_init_state(desc);
+ _sapp.x11.window_state = NormalState;
+
+ XInitThreads();
+ XrmInitialize();
+ _sapp.x11.display = XOpenDisplay(NULL);
+ if (!_sapp.x11.display) {
+ _SAPP_PANIC(LINUX_X11_OPEN_DISPLAY_FAILED);
+ }
+ _sapp.x11.screen = DefaultScreen(_sapp.x11.display);
+ _sapp.x11.root = DefaultRootWindow(_sapp.x11.display);
+ XkbSetDetectableAutoRepeat(_sapp.x11.display, true, NULL);
+ _sapp_x11_query_system_dpi();
+ _sapp.dpi_scale = _sapp.x11.dpi / 96.0f;
+ _sapp_x11_init_extensions();
+ _sapp_x11_create_cursors();
+#if defined(_SAPP_GLX)
+ _sapp_glx_init();
+ Visual* visual = 0;
+ int depth = 0;
+ _sapp_glx_choose_visual(&visual, &depth);
+ _sapp_x11_create_window(visual, depth);
+ _sapp_glx_create_context();
+ _sapp_glx_swapinterval(_sapp.swap_interval);
+#else
+ _sapp_egl_init();
+#endif
+ sapp_set_icon(&desc->icon);
+ _sapp.valid = true;
+ _sapp_x11_show_window();
+ if (_sapp.fullscreen) {
+ _sapp_x11_set_fullscreen(true);
+ }
+
+ XFlush(_sapp.x11.display);
+ while (!_sapp.quit_ordered) {
+ _sapp_timing_measure(&_sapp.timing);
+ int count = XPending(_sapp.x11.display);
+ while (count--) {
+ XEvent event;
+ XNextEvent(_sapp.x11.display, &event);
+ _sapp_x11_process_event(&event);
+ }
+ _sapp_frame();
+#if defined(_SAPP_GLX)
+ _sapp_glx_swap_buffers();
+#else
+ eglSwapBuffers(_sapp.egl.display, _sapp.egl.surface);
+#endif
+ XFlush(_sapp.x11.display);
+ /* handle quit-requested, either from window or from sapp_request_quit() */
+ if (_sapp.quit_requested && !_sapp.quit_ordered) {
+ /* give user code a chance to intervene */
+ _sapp_x11_app_event(SAPP_EVENTTYPE_QUIT_REQUESTED);
+ /* if user code hasn't intervened, quit the app */
+ if (_sapp.quit_requested) {
+ _sapp.quit_ordered = true;
+ }
+ }
+ }
+ _sapp_call_cleanup();
+#if defined(_SAPP_GLX)
+ _sapp_glx_destroy_context();
+#else
+ _sapp_egl_destroy();
+#endif
+ _sapp_x11_destroy_window();
+ _sapp_x11_destroy_cursors();
+ XCloseDisplay(_sapp.x11.display);
+ _sapp_discard_state();
+}
+
+#if !defined(SOKOL_NO_ENTRY)
+int main(int argc, char* argv[]) {
+ sapp_desc desc = sokol_main(argc, argv);
+ _sapp_linux_run(&desc);
+ return 0;
+}
+#endif /* SOKOL_NO_ENTRY */
+#endif /* _SAPP_LINUX */
+
+// ██████ ██ ██ ██████ ██ ██ ██████
+// ██ ██ ██ ██ ██ ██ ██ ██ ██
+// ██████ ██ ██ ██████ ██ ██ ██
+// ██ ██ ██ ██ ██ ██ ██ ██
+// ██ ██████ ██████ ███████ ██ ██████
+//
+// >>public
+#if defined(SOKOL_NO_ENTRY)
+SOKOL_API_IMPL void sapp_run(const sapp_desc* desc) {
+ SOKOL_ASSERT(desc);
+ #if defined(_SAPP_MACOS)
+ _sapp_macos_run(desc);
+ #elif defined(_SAPP_IOS)
+ _sapp_ios_run(desc);
+ #elif defined(_SAPP_EMSCRIPTEN)
+ _sapp_emsc_run(desc);
+ #elif defined(_SAPP_WIN32)
+ _sapp_win32_run(desc);
+ #elif defined(_SAPP_LINUX)
+ _sapp_linux_run(desc);
+ #else
+ #error "sapp_run() not supported on this platform"
+ #endif
+}
+
+/* this is just a stub so the linker doesn't complain */
+sapp_desc sokol_main(int argc, char* argv[]) {
+ _SOKOL_UNUSED(argc);
+ _SOKOL_UNUSED(argv);
+ sapp_desc desc;
+ _sapp_clear(&desc, sizeof(desc));
+ return desc;
+}
+#else
+/* likewise, in normal mode, sapp_run() is just an empty stub */
+SOKOL_API_IMPL void sapp_run(const sapp_desc* desc) {
+ _SOKOL_UNUSED(desc);
+}
+#endif
+
+SOKOL_API_IMPL bool sapp_isvalid(void) {
+ return _sapp.valid;
+}
+
+SOKOL_API_IMPL void* sapp_userdata(void) {
+ return _sapp.desc.user_data;
+}
+
+SOKOL_API_IMPL sapp_desc sapp_query_desc(void) {
+ return _sapp.desc;
+}
+
+SOKOL_API_IMPL uint64_t sapp_frame_count(void) {
+ return _sapp.frame_count;
+}
+
+SOKOL_API_IMPL double sapp_frame_duration(void) {
+ return _sapp_timing_get_avg(&_sapp.timing);
+}
+
+SOKOL_API_IMPL int sapp_width(void) {
+ return (_sapp.framebuffer_width > 0) ? _sapp.framebuffer_width : 1;
+}
+
+SOKOL_API_IMPL float sapp_widthf(void) {
+ return (float)sapp_width();
+}
+
+SOKOL_API_IMPL int sapp_height(void) {
+ return (_sapp.framebuffer_height > 0) ? _sapp.framebuffer_height : 1;
+}
+
+SOKOL_API_IMPL float sapp_heightf(void) {
+ return (float)sapp_height();
+}
+
+SOKOL_API_IMPL int sapp_color_format(void) {
+ #if defined(_SAPP_EMSCRIPTEN) && defined(SOKOL_WGPU)
+ switch (_sapp.emsc.wgpu.render_format) {
+ case WGPUTextureFormat_RGBA8Unorm:
+ return _SAPP_PIXELFORMAT_RGBA8;
+ case WGPUTextureFormat_BGRA8Unorm:
+ return _SAPP_PIXELFORMAT_BGRA8;
+ default:
+ SOKOL_UNREACHABLE;
+ return 0;
+ }
+ #elif defined(SOKOL_METAL) || defined(SOKOL_D3D11)
+ return _SAPP_PIXELFORMAT_BGRA8;
+ #else
+ return _SAPP_PIXELFORMAT_RGBA8;
+ #endif
+}
+
+SOKOL_API_IMPL int sapp_depth_format(void) {
+ return _SAPP_PIXELFORMAT_DEPTH_STENCIL;
+}
+
+SOKOL_API_IMPL int sapp_sample_count(void) {
+ return _sapp.sample_count;
+}
+
+SOKOL_API_IMPL bool sapp_high_dpi(void) {
+ return _sapp.desc.high_dpi && (_sapp.dpi_scale >= 1.5f);
+}
+
+SOKOL_API_IMPL float sapp_dpi_scale(void) {
+ return _sapp.dpi_scale;
+}
+
+SOKOL_API_IMPL const void* sapp_egl_get_display(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(_SAPP_ANDROID)
+ return _sapp.android.display;
+ #elif defined(_SAPP_LINUX) && !defined(_SAPP_GLX)
+ return _sapp.egl.display;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_egl_get_context(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(_SAPP_ANDROID)
+ return _sapp.android.context;
+ #elif defined(_SAPP_LINUX) && !defined(_SAPP_GLX)
+ return _sapp.egl.context;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL void sapp_show_keyboard(bool show) {
+ #if defined(_SAPP_IOS)
+ _sapp_ios_show_keyboard(show);
+ #elif defined(_SAPP_EMSCRIPTEN)
+ _sapp_emsc_show_keyboard(show);
+ #elif defined(_SAPP_ANDROID)
+ _sapp_android_show_keyboard(show);
+ #else
+ _SOKOL_UNUSED(show);
+ #endif
+}
+
+SOKOL_API_IMPL bool sapp_keyboard_shown(void) {
+ return _sapp.onscreen_keyboard_shown;
+}
+
+SOKOL_API_IMPL bool sapp_is_fullscreen(void) {
+ return _sapp.fullscreen;
+}
+
+SOKOL_API_IMPL void sapp_toggle_fullscreen(void) {
+ #if defined(_SAPP_MACOS)
+ _sapp_macos_toggle_fullscreen();
+ #elif defined(_SAPP_WIN32)
+ _sapp_win32_toggle_fullscreen();
+ #elif defined(_SAPP_LINUX)
+ _sapp_x11_toggle_fullscreen();
+ #endif
+}
+
+/* NOTE that sapp_show_mouse() does not "stack" like the Win32 or macOS API functions! */
+SOKOL_API_IMPL void sapp_show_mouse(bool show) {
+ if (_sapp.mouse.shown != show) {
+ #if defined(_SAPP_MACOS)
+ _sapp_macos_update_cursor(_sapp.mouse.current_cursor, show);
+ #elif defined(_SAPP_WIN32)
+ _sapp_win32_update_cursor(_sapp.mouse.current_cursor, show, false);
+ #elif defined(_SAPP_LINUX)
+ _sapp_x11_update_cursor(_sapp.mouse.current_cursor, show);
+ #elif defined(_SAPP_EMSCRIPTEN)
+ _sapp_emsc_update_cursor(_sapp.mouse.current_cursor, show);
+ #endif
+ _sapp.mouse.shown = show;
+ }
+}
+
+SOKOL_API_IMPL bool sapp_mouse_shown(void) {
+ return _sapp.mouse.shown;
+}
+
+SOKOL_API_IMPL void sapp_lock_mouse(bool lock) {
+ #if defined(_SAPP_MACOS)
+ _sapp_macos_lock_mouse(lock);
+ #elif defined(_SAPP_EMSCRIPTEN)
+ _sapp_emsc_lock_mouse(lock);
+ #elif defined(_SAPP_WIN32)
+ _sapp_win32_lock_mouse(lock);
+ #elif defined(_SAPP_LINUX)
+ _sapp_x11_lock_mouse(lock);
+ #else
+ _sapp.mouse.locked = lock;
+ #endif
+}
+
+SOKOL_API_IMPL bool sapp_mouse_locked(void) {
+ return _sapp.mouse.locked;
+}
+
+SOKOL_API_IMPL void sapp_set_mouse_cursor(sapp_mouse_cursor cursor) {
+ SOKOL_ASSERT((cursor >= 0) && (cursor < _SAPP_MOUSECURSOR_NUM));
+ if (_sapp.mouse.current_cursor != cursor) {
+ #if defined(_SAPP_MACOS)
+ _sapp_macos_update_cursor(cursor, _sapp.mouse.shown);
+ #elif defined(_SAPP_WIN32)
+ _sapp_win32_update_cursor(cursor, _sapp.mouse.shown, false);
+ #elif defined(_SAPP_LINUX)
+ _sapp_x11_update_cursor(cursor, _sapp.mouse.shown);
+ #elif defined(_SAPP_EMSCRIPTEN)
+ _sapp_emsc_update_cursor(cursor, _sapp.mouse.shown);
+ #endif
+ _sapp.mouse.current_cursor = cursor;
+ }
+}
+
+SOKOL_API_IMPL sapp_mouse_cursor sapp_get_mouse_cursor(void) {
+ return _sapp.mouse.current_cursor;
+}
+
+SOKOL_API_IMPL void sapp_request_quit(void) {
+ _sapp.quit_requested = true;
+}
+
+SOKOL_API_IMPL void sapp_cancel_quit(void) {
+ _sapp.quit_requested = false;
+}
+
+SOKOL_API_IMPL void sapp_quit(void) {
+ _sapp.quit_ordered = true;
+}
+
+SOKOL_API_IMPL void sapp_consume_event(void) {
+ _sapp.event_consumed = true;
+}
+
+/* NOTE: on HTML5, sapp_set_clipboard_string() must be called from within event handler! */
+SOKOL_API_IMPL void sapp_set_clipboard_string(const char* str) {
+ if (!_sapp.clipboard.enabled) {
+ return;
+ }
+ SOKOL_ASSERT(str);
+ #if defined(_SAPP_MACOS)
+ _sapp_macos_set_clipboard_string(str);
+ #elif defined(_SAPP_EMSCRIPTEN)
+ _sapp_emsc_set_clipboard_string(str);
+ #elif defined(_SAPP_WIN32)
+ _sapp_win32_set_clipboard_string(str);
+ #else
+ /* not implemented */
+ #endif
+ _sapp_strcpy(str, _sapp.clipboard.buffer, _sapp.clipboard.buf_size);
+}
+
+SOKOL_API_IMPL const char* sapp_get_clipboard_string(void) {
+ if (!_sapp.clipboard.enabled) {
+ return "";
+ }
+ #if defined(_SAPP_MACOS)
+ return _sapp_macos_get_clipboard_string();
+ #elif defined(_SAPP_EMSCRIPTEN)
+ return _sapp.clipboard.buffer;
+ #elif defined(_SAPP_WIN32)
+ return _sapp_win32_get_clipboard_string();
+ #else
+ /* not implemented */
+ return _sapp.clipboard.buffer;
+ #endif
+}
+
+SOKOL_API_IMPL void sapp_set_window_title(const char* title) {
+ SOKOL_ASSERT(title);
+ _sapp_strcpy(title, _sapp.window_title, sizeof(_sapp.window_title));
+ #if defined(_SAPP_MACOS)
+ _sapp_macos_update_window_title();
+ #elif defined(_SAPP_WIN32)
+ _sapp_win32_update_window_title();
+ #elif defined(_SAPP_LINUX)
+ _sapp_x11_update_window_title();
+ #endif
+}
+
+SOKOL_API_IMPL void sapp_set_icon(const sapp_icon_desc* desc) {
+ SOKOL_ASSERT(desc);
+ if (desc->sokol_default) {
+ if (0 == _sapp.default_icon_pixels) {
+ _sapp_setup_default_icon();
+ }
+ SOKOL_ASSERT(0 != _sapp.default_icon_pixels);
+ desc = &_sapp.default_icon_desc;
+ }
+ const int num_images = _sapp_icon_num_images(desc);
+ if (num_images == 0) {
+ return;
+ }
+ SOKOL_ASSERT((num_images > 0) && (num_images <= SAPP_MAX_ICONIMAGES));
+ if (!_sapp_validate_icon_desc(desc, num_images)) {
+ return;
+ }
+ #if defined(_SAPP_MACOS)
+ _sapp_macos_set_icon(desc, num_images);
+ #elif defined(_SAPP_WIN32)
+ _sapp_win32_set_icon(desc, num_images);
+ #elif defined(_SAPP_LINUX)
+ _sapp_x11_set_icon(desc, num_images);
+ #elif defined(_SAPP_EMSCRIPTEN)
+ _sapp_emsc_set_icon(desc, num_images);
+ #endif
+}
+
+SOKOL_API_IMPL int sapp_get_num_dropped_files(void) {
+ SOKOL_ASSERT(_sapp.drop.enabled);
+ return _sapp.drop.num_files;
+}
+
+SOKOL_API_IMPL const char* sapp_get_dropped_file_path(int index) {
+ SOKOL_ASSERT(_sapp.drop.enabled);
+ SOKOL_ASSERT((index >= 0) && (index < _sapp.drop.num_files));
+ SOKOL_ASSERT(_sapp.drop.buffer);
+ if (!_sapp.drop.enabled) {
+ return "";
+ }
+ if ((index < 0) || (index >= _sapp.drop.max_files)) {
+ return "";
+ }
+ return (const char*) _sapp_dropped_file_path_ptr(index);
+}
+
+SOKOL_API_IMPL uint32_t sapp_html5_get_dropped_file_size(int index) {
+ SOKOL_ASSERT(_sapp.drop.enabled);
+ SOKOL_ASSERT((index >= 0) && (index < _sapp.drop.num_files));
+ #if defined(_SAPP_EMSCRIPTEN)
+ if (!_sapp.drop.enabled) {
+ return 0;
+ }
+ return sapp_js_dropped_file_size(index);
+ #else
+ (void)index;
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL void sapp_html5_fetch_dropped_file(const sapp_html5_fetch_request* request) {
+ SOKOL_ASSERT(_sapp.drop.enabled);
+ SOKOL_ASSERT(request);
+ SOKOL_ASSERT(request->callback);
+ SOKOL_ASSERT(request->buffer.ptr);
+ SOKOL_ASSERT(request->buffer.size > 0);
+ #if defined(_SAPP_EMSCRIPTEN)
+ const int index = request->dropped_file_index;
+ sapp_html5_fetch_error error_code = SAPP_HTML5_FETCH_ERROR_NO_ERROR;
+ if ((index < 0) || (index >= _sapp.drop.num_files)) {
+ error_code = SAPP_HTML5_FETCH_ERROR_OTHER;
+ }
+ if (sapp_html5_get_dropped_file_size(index) > request->buffer.size) {
+ error_code = SAPP_HTML5_FETCH_ERROR_BUFFER_TOO_SMALL;
+ }
+ if (SAPP_HTML5_FETCH_ERROR_NO_ERROR != error_code) {
+ _sapp_emsc_invoke_fetch_cb(index,
+ false, // success
+ (int)error_code,
+ request->callback,
+ 0, // fetched_size
+ (void*)request->buffer.ptr,
+ request->buffer.size,
+ request->user_data);
+ }
+ else {
+ sapp_js_fetch_dropped_file(index,
+ request->callback,
+ (void*)request->buffer.ptr,
+ request->buffer.size,
+ request->user_data);
+ }
+ #else
+ (void)request;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_metal_get_device(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(SOKOL_METAL)
+ #if defined(_SAPP_MACOS)
+ const void* obj = (__bridge const void*) _sapp.macos.mtl_device;
+ #else
+ const void* obj = (__bridge const void*) _sapp.ios.mtl_device;
+ #endif
+ SOKOL_ASSERT(obj);
+ return obj;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_metal_get_renderpass_descriptor(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(SOKOL_METAL)
+ #if defined(_SAPP_MACOS)
+ const void* obj = (__bridge const void*) [_sapp.macos.view currentRenderPassDescriptor];
+ #else
+ const void* obj = (__bridge const void*) [_sapp.ios.view currentRenderPassDescriptor];
+ #endif
+ SOKOL_ASSERT(obj);
+ return obj;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_metal_get_drawable(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(SOKOL_METAL)
+ #if defined(_SAPP_MACOS)
+ const void* obj = (__bridge const void*) [_sapp.macos.view currentDrawable];
+ #else
+ const void* obj = (__bridge const void*) [_sapp.ios.view currentDrawable];
+ #endif
+ SOKOL_ASSERT(obj);
+ return obj;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_macos_get_window(void) {
+ #if defined(_SAPP_MACOS)
+ const void* obj = (__bridge const void*) _sapp.macos.window;
+ SOKOL_ASSERT(obj);
+ return obj;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_ios_get_window(void) {
+ #if defined(_SAPP_IOS)
+ const void* obj = (__bridge const void*) _sapp.ios.window;
+ SOKOL_ASSERT(obj);
+ return obj;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_d3d11_get_device(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(SOKOL_D3D11)
+ return _sapp.d3d11.device;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_d3d11_get_device_context(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(SOKOL_D3D11)
+ return _sapp.d3d11.device_context;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_d3d11_get_swap_chain(void) {
+ SOKOL_ASSERT(_sapp.valid);
+#if defined(SOKOL_D3D11)
+ return _sapp.d3d11.swap_chain;
+#else
+ return 0;
+#endif
+}
+
+SOKOL_API_IMPL const void* sapp_d3d11_get_render_target_view(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(SOKOL_D3D11)
+ if (_sapp.d3d11.msaa_rtv) {
+ return _sapp.d3d11.msaa_rtv;
+ }
+ else {
+ return _sapp.d3d11.rtv;
+ }
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_d3d11_get_depth_stencil_view(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(SOKOL_D3D11)
+ return _sapp.d3d11.dsv;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_win32_get_hwnd(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(_SAPP_WIN32)
+ return _sapp.win32.hwnd;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_wgpu_get_device(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(_SAPP_EMSCRIPTEN) && defined(SOKOL_WGPU)
+ return (const void*) _sapp.emsc.wgpu.device;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_wgpu_get_render_view(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(_SAPP_EMSCRIPTEN) && defined(SOKOL_WGPU)
+ if (_sapp.sample_count > 1) {
+ return (const void*) _sapp.emsc.wgpu.msaa_view;
+ }
+ else {
+ return (const void*) _sapp.emsc.wgpu.swapchain_view;
+ }
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_wgpu_get_resolve_view(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(_SAPP_EMSCRIPTEN) && defined(SOKOL_WGPU)
+ if (_sapp.sample_count > 1) {
+ return (const void*) _sapp.emsc.wgpu.swapchain_view;
+ }
+ else {
+ return 0;
+ }
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_wgpu_get_depth_stencil_view(void) {
+ SOKOL_ASSERT(_sapp.valid);
+ #if defined(_SAPP_EMSCRIPTEN) && defined(SOKOL_WGPU)
+ return (const void*) _sapp.emsc.wgpu.depth_stencil_view;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL const void* sapp_android_get_native_activity(void) {
+ // NOTE: _sapp.valid is not asserted here because sapp_android_get_native_activity()
+ // needs to be callable from within sokol_main() (see: https://github.com/floooh/sokol/issues/708)
+ #if defined(_SAPP_ANDROID)
+ return (void*)_sapp.android.activity;
+ #else
+ return 0;
+ #endif
+}
+
+SOKOL_API_IMPL void sapp_html5_ask_leave_site(bool ask) {
+ _sapp.html5_ask_leave_site = ask;
+}
+
+#endif /* SOKOL_APP_IMPL */