Update docs; Add key repeat flag; Fix fill rectangle

1 files changed, 30 insertions, 21 deletions

diff --git a/graphics.c b/graphics.c
index 79e3a6c..287b248 100755
--- a/graphics.c
+++ b/graphics.c
@@ -7,6 +7,8 @@
 #/
 #/    (C) 2025 Mitya Selivanov <guattari.tech>
 #/
+#/    Any use of this code is prohibited.
+#/
 #/  ================================================================
 #/
 #/    Self-testing shell script
@@ -20,6 +22,9 @@ gcc                               \
   -Wno-missing-braces             \
   -Wno-old-style-declaration      \
   -Wno-overlength-strings         \
+  -Wno-unused-parameter           \
+  -Wno-unused-variable            \
+  -Wno-unused-but-set-variable    \
   -O3 -D NDEBUG                   \
   -D ENABLE_WAYLAND=0             \
   -D GRAPHICS_TEST_SUITE          \
@@ -93,7 +98,6 @@ typedef struct {
 } Box;
 
 enum {
-  GRAPHICS_NOOP = 0,
   GRAPHICS_DRAW_PIXELS,
   GRAPHICS_FILL_RECTANGLE,
   GRAPHICS_FILL_TRIANGLE,
@@ -173,9 +177,9 @@ typedef struct {
 //
 //  ================================================================
 
-Box external_font_text_area(i32 font, vec2 scale, i64 num_chars, c32 *text);
+Box font_text_area_dispatch(i32 font, vec2 scale, i64 num_chars, c32 *text);
 
-void external_font_render_to_buffer(Pixel_Buffer dst, i32 font, vec4_f32 color, vec2 position, vec2 scale, i64 num_chars, c32 *text);
+void font_render_to_buffer_dispatch(Pixel_Buffer dst, i32 font, vec4_f32 color, vec2 position, vec2 scale, i64 num_chars, c32 *text);
 
 //  ================================================================
 
@@ -244,6 +248,7 @@ void draw_text_area  (i32 font, vec4_f32 color, Box area, vec2 max_size, i64 num
 void draw_text_cursor(i32 font, vec4_f32 color, Box area, vec2 max_size, i64 num_chars, c32 *text, i64 cursor, i64 selection);
 
 void perform_graphics_request(Graphics_Context context, Graphics_Request req);
+void clean_graphics_requests_cache(i64 amount);
 
 #endif // GRAPHICS_HEADER_GUARD_
 
@@ -335,16 +340,18 @@ void draw_pixels_to_buffer(Pixel_Buffer dst, Box area, Pixel_Buffer src) {
 
   PROFILER_begin(PROFILE_DRAW_PIXELS);
 
-  i64 i0 = (i64) floor(area.x);
-  i64 i1 = (i64) floor(area.x + area.width);
-  i64 j0 = (i64) floor(area.y);
-  i64 j1 = (i64) floor(area.y + area.height);
+  i64 i0 = (i64) floor(area.x + 0.5);
+  i64 i1 = (i64) floor(area.x + area.width + 0.5);
+  i64 j0 = (i64) floor(area.y + 0.5);
+  i64 j1 = (i64) floor(area.y + area.height + 0.5);
 
   if (i0 < 0)          i0 = 0;
   if (i1 > dst.width)  i1 = dst.width;
   if (j0 < 0)          j0 = 0;
   if (j1 > dst.height) j1 = dst.height;
 
+  //  FIXME, PERF: Use integer arithmetic.
+
   f64 di = src.width  / area.width;
   f64 dj = src.height / area.height;
   f64 jj = (j0 - area.y) * dj + dj * .5;
@@ -365,10 +372,10 @@ void draw_pixels_to_buffer(Pixel_Buffer dst, Box area, Pixel_Buffer src) {
 void fill_rectangle_to_buffer(Pixel_Buffer dst, vec4_f32 color, Box area) {
   PROFILER_begin(PROFILE_FILL_RECTANGLE);
 
-  i64 i0 = (i64) floor(area.x);
-  i64 i1 = (i64) floor(area.x + area.width);
-  i64 j0 = (i64) floor(area.y);
-  i64 j1 = (i64) floor(area.y + area.height);
+  i64 i0 = (i64) floor(area.x + 0.5);
+  i64 i1 = (i64) floor(area.x + area.width + 0.5);
+  i64 j0 = (i64) floor(area.y + 0.5);
+  i64 j1 = (i64) floor(area.y + area.height + 0.5);
 
   if (i0 < 0)          i0 = 0;
   if (i1 > dst.width)  i1 = dst.width;
@@ -815,8 +822,8 @@ static void draw_text_(Pixel_Buffer dst, vec4_f32 color, f64 x0, f64 y0, f64 sca
   }
 }
 
-#if !defined(GRAPHICS_ENABLE_EXTERNAL_FONT)
-Box external_font_text_area(i32 font, vec2 scale, i64 num_chars, c32 *text) {
+#if !defined(GRAPHICS_ENABLE_FONT_CUSTOM_DISPATCH)
+Box font_text_area_dispatch(i32 font, vec2 scale, i64 num_chars, c32 *text) {
   //  TODO
 
   (void) font;
@@ -827,7 +834,7 @@ Box external_font_text_area(i32 font, vec2 scale, i64 num_chars, c32 *text) {
   return (Box) {0};
 }
 
-void external_font_render_to_buffer(Pixel_Buffer dst, i32 font, vec4_f32 color, vec2 position, vec2 scale, i64 num_chars, c32 *text) {
+void font_render_to_buffer_dispatch(Pixel_Buffer dst, i32 font, vec4_f32 color, vec2 position, vec2 scale, i64 num_chars, c32 *text) {
   //  TODO
 
   (void) dst;
@@ -838,7 +845,7 @@ void external_font_render_to_buffer(Pixel_Buffer dst, i32 font, vec4_f32 color,
   (void) num_chars;
   (void) text;
 }
-#endif // !defined(GRAPHICS_ENABLE_EXTERNAL_FONT)
+#endif // !defined(GRAPHICS_ENABLE_FONT_CUSTOM_DISPATCH)
 
 void draw_text_area_to_buffer(Pixel_Buffer dst, i32 font, vec4_f32 color, Box area, vec2 max_size, i64 num_chars, c32 *text) {
   if (text == NULL || num_chars <= 0 || max_size.x < EPSILON || max_size.y < EPSILON)
@@ -2141,15 +2148,17 @@ void perform_graphics_request(Graphics_Context context, Graphics_Request req) {
   scale_and_perform_graphics_request_(graphics_context_defaults_(context), req);
 }
 
-void graphics_refresh_frame(void) {
-  Graphics_Cache_Slot_ *s = _graphics_cache + _graphics_cache_gc_index;
+void clean_graphics_requests_cache(i64 amount) {
+  for (; amount > 0; --amount) {
+    Graphics_Cache_Slot_ *s = _graphics_cache + _graphics_cache_gc_index;
 
-  i64 required_len = !s->occupied ? 0 : s->width * s->height;
+    i64 required_len = !s->occupied ? 0 : s->width * s->height;
 
-  if (s->buffer_len > required_len)
-    resize_dynamic_array_exact(&s->buffer_len, (void **) &s->buffer, sizeof *s->buffer, required_len);
+    if (s->buffer_len > required_len)
+      resize_dynamic_array_exact(&s->buffer_len, (void **) &s->buffer, sizeof *s->buffer, required_len);
 
-  _graphics_cache_gc_index = (_graphics_cache_gc_index + 1) % GRAPHICS_CACHE_SIZE;
+    _graphics_cache_gc_index = (_graphics_cache_gc_index + 1) % GRAPHICS_CACHE_SIZE;
+  }
 }
 
 //  ================================================================