Defaults in web; Drop file interface

1 files changed, 220 insertions, 63 deletions

diff --git a/reduced_system_layer.c b/reduced_system_layer.c
index d86945e..8af0007 100755
--- a/reduced_system_layer.c
+++ b/reduced_system_layer.c
@@ -49,7 +49,23 @@
 #/    - Vector math
 #/    - Anti-aliasing
 #/  - Logging
-#/  - Parsing
+#/  - Test suite
+#/  - Long term
+#/    - Parsing
+#/    - Printing
+#/    - File system
+#/    - Secure random
+#/    - Process
+#/    - Shared memory
+#/    - Shared mutex
+#/    - Stackless coroutines
+#/    - Big integer
+#/    - Mersenne Twister 64
+#/    - Arithmetic coding
+#/    - Threads - https://nachtimwald.com/2019/04/05/cross-platform-thread-wrapper
+#/    - Web sockets
+#/    - HTTP
+#/    - Cryptography - https://github.com/jedisct1/supercop
 #/
 #/  Done
 #/
@@ -191,6 +207,14 @@ typedef struct { f64 v[16];      } mat4;
 #define MAX_PIXEL_SIZE 16
 #endif
 
+#ifndef DEFAULT_PIXEL_SIZE
+#if defined(__wasm__)
+#define DEFAULT_PIXEL_SIZE 3
+#else
+#define DEFAULT_PIXEL_SIZE 1
+#endif
+#endif
+
 #ifndef MIN_FRAME_DURATION
 #define MIN_FRAME_DURATION 9
 #endif
@@ -219,6 +243,10 @@ typedef struct { f64 v[16];      } mat4;
 #define MAX_NUM_SOUND_FRAMES (10 * SOUND_SAMPLE_RATE * NUM_SOUND_CHANNELS)
 #endif
 
+#ifndef DROP_FILE_BUFFER_SIZE
+#define DROP_FILE_BUFFER_SIZE (20 * 1024 * 1024)
+#endif
+
 //  ================================================================
 //
 //    PLATFORM API
@@ -240,7 +268,9 @@ extern "C" {
 enum {
   IPv4_UDP = 1,
   IPv6_UDP = 2,
+};
 
+enum {
   MOD_CTRL         = 1,
   MOD_SHIFT        = 2,
   MOD_ALT          = 3,
@@ -379,6 +409,15 @@ typedef struct {
 } Input_Key;
 
 typedef struct {
+  i32 x;
+  i32 y;
+  i64 name_size;
+  c8 *name;
+  i64 data_size;
+  u8 *data;
+} Drop_File;
+
+typedef struct {
   c8 *title;
   i32 frame_width;
   i32 frame_height;
@@ -388,8 +427,10 @@ typedef struct {
   b8  done;
   b8  has_focus;
   b8  has_cursor;
+  b8  files_dropped;
   i32 real_width;
   i32 real_height;
+  i32 pixel_size;
   i64 input_size;
   i64 clipboard_size;
   i32 cursor_x;
@@ -401,12 +442,16 @@ typedef struct {
   i64 sound_clock_time;
   i64 sound_clock_carry;
 
+  i64        num_drop_files;
+  Drop_File *drop_files;
+
   vec4_f32  pixels      [MAX_NUM_PIXELS];
   f32       sound_ring  [MAX_NUM_SOUND_FRAMES];
   Input_Key input       [MAX_INPUT_SIZE];
   c8        clipboard   [MAX_CLIPBOARD_SIZE];
   b8        key_down    [MAX_NUM_KEYS];
   b8        key_pressed [MAX_NUM_KEYS];
+  u8        drop_buffer [DROP_FILE_BUFFER_SIZE];
 } Platform;
 
 typedef struct {
@@ -1203,7 +1248,6 @@ void p_queue_sound(i64 delay_in_samples, i64 num_samples, f32 *frames) {
 #include <X11/Xatom.h>
 
 static i64      _frame_time       = 0;
-static i32      _pixel_size       = 0;
 static XImage   _image            = {0};
 static Display *_display          = NULL;
 static GC       _gc               = NULL;
@@ -1708,29 +1752,32 @@ i32 p_handle_events(void) {
     _image.width          = attrs.width;
     _image.height         = attrs.height;
     _image.bytes_per_line = _image.width * 4;
+  }
 
-    i32 width  = _image.width;
-    i32 height = _image.height;
+  i32 width  = _image.width;
+  i32 height = _image.height;
 
-    if (_pixel_size <= MIN_PIXEL_SIZE)
-      _pixel_size = MIN_PIXEL_SIZE;
+  if (g_platform.pixel_size <= 0)
+    g_platform.pixel_size = DEFAULT_PIXEL_SIZE;
 
-    if (_pixel_size > 1) {
-      width  = (i32) floor(((f64) _image.width)  / _pixel_size + .5);
-      height = (i32) floor(((f64) _image.height) / _pixel_size + .5);
-    }
+  if (g_platform.pixel_size <= MIN_PIXEL_SIZE)
+    g_platform.pixel_size = MIN_PIXEL_SIZE;
 
-    if (g_platform.real_width != _image.width || g_platform.real_height != _image.height) {
-      ++num_events;
-      g_platform.real_width  = _image.width;
-      g_platform.real_height = _image.height;
-    }
+  if (g_platform.pixel_size > 1) {
+    width  = (i32) floor(((f64) _image.width)  / g_platform.pixel_size + .5);
+    height = (i32) floor(((f64) _image.height) / g_platform.pixel_size + .5);
+  }
 
-    if (g_platform.frame_width != width || g_platform.frame_height != height) {
-      ++num_events;
-      g_platform.frame_width  = width;
-      g_platform.frame_height = height;
-    }
+  if (g_platform.real_width != _image.width || g_platform.real_height != _image.height) {
+    ++num_events;
+    g_platform.real_width  = _image.width;
+    g_platform.real_height = _image.height;
+  }
+
+  if (g_platform.frame_width != width || g_platform.frame_height != height) {
+    ++num_events;
+    g_platform.frame_width  = width;
+    g_platform.frame_height = height;
   }
 
   return num_events;
@@ -1777,10 +1824,10 @@ void p_render_frame(void) {
   if (!g_platform.exact_resolution) {
     i64 frame_duration = p_time() - _frame_time;
 
-    if (_pixel_size < MAX_PIXEL_SIZE && frame_duration > MAX_FRAME_DURATION)
-      ++_pixel_size;
-    else if (_pixel_size > MIN_PIXEL_SIZE && frame_duration < MIN_FRAME_DURATION)
-      --_pixel_size;
+    if (g_platform.pixel_size < MAX_PIXEL_SIZE && frame_duration > MAX_FRAME_DURATION)
+      ++g_platform.pixel_size;
+    else if (g_platform.pixel_size > MIN_PIXEL_SIZE && frame_duration < MIN_FRAME_DURATION)
+      --g_platform.pixel_size;
   }
 }
 
@@ -1809,7 +1856,6 @@ void p_clipboard_write(i64 size, c8 *data) {
 
 static i32 _frame_width    = 0;
 static i32 _frame_height   = 0;
-static i32 _pixel_size     = 0;
 static i32 _num_events     = 0;
 static i32 _input_size     = 0;
 static b8  _wait_events    = 0;
@@ -1817,6 +1863,7 @@ static i64 _timeout        = 0;
 static i64 _sound_position = 0;
 static i64 _sound_read     = 0;
 
+static u16 _key_map         [MAX_NUM_KEYS]         = {0};
 static c8  _href            [4096]                 = {0};
 static u32 _pixels_scaled   [MAX_NUM_PIXELS]       = {0};
 static u32 _pixels_internal [MAX_NUM_PIXELS]       = {0};
@@ -1948,6 +1995,129 @@ void p_queue_sound(i64 delay_in_samples, i64 num_samples, f32 *frames) {
   }
 }
 
+__attribute__((export_name("js_max_num_keys"))) i32 js_max_num_keys(void) {
+  return MAX_NUM_KEYS;
+}
+
+__attribute__((export_name("js_key_map"))) void *js_key_map(void) {
+  i32 n = 0;
+
+  _key_map[n++] = KEY_BACKSPACE;
+  _key_map[n++] = KEY_TAB;
+  _key_map[n++] = KEY_ENTER;
+  _key_map[n++] = KEY_LCTRL;
+  _key_map[n++] = KEY_RCTRL;
+  _key_map[n++] = KEY_LSHIFT;
+  _key_map[n++] = KEY_RSHIFT;
+  _key_map[n++] = KEY_LALT;
+  _key_map[n++] = KEY_RALT;
+  _key_map[n++] = KEY_LEFT;
+  _key_map[n++] = KEY_RIGHT;
+  _key_map[n++] = KEY_UP;
+  _key_map[n++] = KEY_DOWN;
+  _key_map[n++] = KEY_PAUSE;
+  _key_map[n++] = KEY_INSERT;
+  _key_map[n++] = KEY_HOME;
+  _key_map[n++] = KEY_END;
+  _key_map[n++] = KEY_PAGEUP;
+  _key_map[n++] = KEY_PAGEDOWN;
+  _key_map[n++] = KEY_ESCAPE;
+  _key_map[n++] = KEY_PRINTSCREEN;
+  _key_map[n++] = KEY_SPACE;
+  _key_map[n++] = KEY_LMETA;
+  _key_map[n++] = KEY_RMETA;
+  _key_map[n++] = KEY_QUOTE;
+  _key_map[n++] = KEY_COMMA;
+  _key_map[n++] = KEY_MINUS;
+  _key_map[n++] = KEY_PERIOD;
+  _key_map[n++] = KEY_SLASH;
+  _key_map[n++] = KEY_0;
+  _key_map[n++] = KEY_1;
+  _key_map[n++] = KEY_2;
+  _key_map[n++] = KEY_3;
+  _key_map[n++] = KEY_4;
+  _key_map[n++] = KEY_5;
+  _key_map[n++] = KEY_6;
+  _key_map[n++] = KEY_7;
+  _key_map[n++] = KEY_8;
+  _key_map[n++] = KEY_9;
+  _key_map[n++] = KEY_COLON;
+  _key_map[n++] = KEY_EQUAL;
+  _key_map[n++] = KEY_LBRACE;
+  _key_map[n++] = KEY_BACKSLASH;
+  _key_map[n++] = KEY_RBRACE;
+  _key_map[n++] = KEY_TILDE;
+  _key_map[n++] = KEY_A;
+  _key_map[n++] = KEY_B;
+  _key_map[n++] = KEY_C;
+  _key_map[n++] = KEY_D;
+  _key_map[n++] = KEY_E;
+  _key_map[n++] = KEY_F;
+  _key_map[n++] = KEY_G;
+  _key_map[n++] = KEY_H;
+  _key_map[n++] = KEY_I;
+  _key_map[n++] = KEY_J;
+  _key_map[n++] = KEY_K;
+  _key_map[n++] = KEY_L;
+  _key_map[n++] = KEY_M;
+  _key_map[n++] = KEY_N;
+  _key_map[n++] = KEY_O;
+  _key_map[n++] = KEY_P;
+  _key_map[n++] = KEY_Q;
+  _key_map[n++] = KEY_R;
+  _key_map[n++] = KEY_S;
+  _key_map[n++] = KEY_T;
+  _key_map[n++] = KEY_U;
+  _key_map[n++] = KEY_V;
+  _key_map[n++] = KEY_W;
+  _key_map[n++] = KEY_X;
+  _key_map[n++] = KEY_Y;
+  _key_map[n++] = KEY_Z;
+  _key_map[n++] = KEY_DELETE;
+  _key_map[n++] = KEY_F1;
+  _key_map[n++] = KEY_F2;
+  _key_map[n++] = KEY_F3;
+  _key_map[n++] = KEY_F4;
+  _key_map[n++] = KEY_F5;
+  _key_map[n++] = KEY_F6;
+  _key_map[n++] = KEY_F7;
+  _key_map[n++] = KEY_F8;
+  _key_map[n++] = KEY_F9;
+  _key_map[n++] = KEY_F10;
+  _key_map[n++] = KEY_F11;
+  _key_map[n++] = KEY_F12;
+  _key_map[n++] = KEY_F13;
+  _key_map[n++] = KEY_F14;
+  _key_map[n++] = KEY_F15;
+  _key_map[n++] = KEY_F16;
+  _key_map[n++] = KEY_F17;
+  _key_map[n++] = KEY_F18;
+  _key_map[n++] = KEY_F19;
+  _key_map[n++] = KEY_F20;
+  _key_map[n++] = KEY_F21;
+  _key_map[n++] = KEY_F22;
+  _key_map[n++] = KEY_F23;
+  _key_map[n++] = KEY_F24;
+
+  return _key_map;
+}
+
+__attribute__((export_name("js_sound_sample_rate"))) f64 js_sound_sample_rate(void) {
+  return (f64) SOUND_SAMPLE_RATE;
+}
+
+__attribute__((export_name("js_num_sound_channels"))) i32 js_num_sound_channels(void) {
+  return NUM_SOUND_CHANNELS;
+}
+
+__attribute__((export_name("js_max_num_sound_frames"))) i32 js_max_num_sound_frames(void) {
+  return MAX_NUM_SOUND_FRAMES;
+}
+
+__attribute__((export_name("js_sound_buffer"))) void *js_sound_buffer(void) {
+  return _sound_buffer;
+}
+
 __attribute__((export_name("js_href"))) void *js_href(void) {
   return _href;
 }
@@ -1974,29 +2144,32 @@ __attribute__((export_name("js_frame"))) void js_frame(i32 frame_width, i32 fram
   if (frame_width > 0 && frame_height > 0 && frame_width * frame_height <= MAX_NUM_PIXELS) {
     _frame_width  = frame_width;
     _frame_height = frame_height;
+  }
 
-    i32 width  = _frame_width;
-    i32 height = _frame_height;
+  i32 width  = _frame_width;
+  i32 height = _frame_height;
 
-    if (_pixel_size <= MIN_PIXEL_SIZE)
-      _pixel_size = MIN_PIXEL_SIZE;
+  if (g_platform.pixel_size <= 0)
+    g_platform.pixel_size = DEFAULT_PIXEL_SIZE;
 
-    if (_pixel_size > 1) {
-      width  = (i32) floor(((f64) _frame_width)  / _pixel_size + .5);
-      height = (i32) floor(((f64) _frame_height) / _pixel_size + .5);
-    }
+  if (g_platform.pixel_size <= MIN_PIXEL_SIZE)
+    g_platform.pixel_size = MIN_PIXEL_SIZE;
 
-    if (g_platform.real_width != _frame_width || g_platform.real_height != _frame_height) {
-      ++_num_events;
-      g_platform.real_width  = frame_width;
-      g_platform.real_height = frame_height;
-    }
+  if (g_platform.pixel_size > 1) {
+    width  = (i32) floor(((f64) _frame_width)  / g_platform.pixel_size + .5);
+    height = (i32) floor(((f64) _frame_height) / g_platform.pixel_size + .5);
+  }
 
-    if (g_platform.frame_width != width || g_platform.frame_height != height) {
-      ++_num_events;
-      g_platform.frame_width  = width;
-      g_platform.frame_height = height;
-    }
+  if (g_platform.real_width != _frame_width || g_platform.real_height != _frame_height) {
+    ++_num_events;
+    g_platform.real_width  = _frame_width;
+    g_platform.real_height = _frame_height;
+  }
+
+  if (g_platform.frame_width != width || g_platform.frame_height != height) {
+    ++_num_events;
+    g_platform.frame_width  = width;
+    g_platform.frame_height = height;
   }
 
   g_platform.done = 0;
@@ -2021,10 +2194,10 @@ __attribute__((export_name("js_frame"))) void js_frame(i32 frame_width, i32 fram
   if (!g_platform.exact_resolution && do_render) {
     i64 frame_duration = p_time() - frame_time;
 
-    if (_pixel_size < MAX_PIXEL_SIZE && frame_duration > MAX_FRAME_DURATION)
-      ++_pixel_size;
-    else if (_pixel_size > MIN_PIXEL_SIZE && frame_duration < MIN_FRAME_DURATION)
-      --_pixel_size;
+    if (g_platform.pixel_size < MAX_PIXEL_SIZE && frame_duration > MAX_FRAME_DURATION)
+      ++g_platform.pixel_size;
+    else if (g_platform.pixel_size > MIN_PIXEL_SIZE && frame_duration < MIN_FRAME_DURATION)
+      --g_platform.pixel_size;
   }
 }
 
@@ -2081,22 +2254,6 @@ __attribute__((export_name("js_keyup"))) void js_keyup(u32 key, u32 mod) {
   g_platform.key_down[MOD_META]  = (mod & 8) ? 1 : 0;
 }
 
-__attribute__((export_name("js_sample_rate"))) f64 js_sample_rate(void) {
-  return (f64) SOUND_SAMPLE_RATE;
-}
-
-__attribute__((export_name("js_num_sound_channels"))) i32 js_num_sound_channels(void) {
-  return NUM_SOUND_CHANNELS;
-}
-
-__attribute__((export_name("js_max_num_sound_frames"))) i32 js_max_num_sound_frames(void) {
-  return MAX_NUM_SOUND_FRAMES;
-}
-
-__attribute__((export_name("js_sound_buffer"))) void *js_sound_buffer(void) {
-  return _sound_buffer;
-}
-
 __attribute__((export_name("js_clipboard_size"))) i32 js_clipboard_size(void) {
   return g_platform.clipboard_size;
 }