moved video frame synchronization to single location (screen update)

[rocksndiamonds.git] / src / libgame / sdl.c

diff --git a/src/libgame/sdl.c b/src/libgame/sdl.c
index 2507be4c97da205b22edef149ac0e413b7716091..480677c31bb117b3f26c07ccca2351f6841a2b42 100644 (file)
--- a/src/libgame/sdl.c
+++ b/src/libgame/sdl.c
@@ -145,10 +145,14 @@ static void UpdateScreen(SDL_Rect *rect)
     SDL_SetRenderTarget(sdl_renderer, NULL);
     SDL_RenderCopy(sdl_renderer, sdl_texture_target, NULL, NULL);
   }
+#endif
 
-  // show render target buffer on screen
-  SDL_RenderPresent(sdl_renderer);
+  // global synchronization point of the game to align video frame delay
+  WaitUntilDelayReached(&video.frame_delay, video.frame_delay_value);
 
+#if defined(TARGET_SDL2)
+ // show render target buffer on screen
+  SDL_RenderPresent(sdl_renderer);
 #else  // TARGET_SDL
   if (rect)
     SDL_UpdateRects(screen, 1, rect);
@@ -1169,10 +1173,7 @@ void SDLFadeRectangle(Bitmap *bitmap_cross, int x, int y, int width, int height,
 
     while (time_current < time_post_delay)
     {
-      // do not wait longer than 10 ms at a time to be able to ...
-      Delay(MIN(10, time_post_delay - time_current));
-
-      // ... continue drawing global animations during post delay
+      // updating the screen contains waiting for frame delay (non-busy)
       UpdateScreen(NULL);
 
       time_current = SDL_GetTicks();