fixed potential bug with alpha blending when using virtual buttons

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

diff --git a/src/libgame/sdl.c b/src/libgame/sdl.c
index 14ad28fe39d1b696cf748fcc5ede4284428fe1ae..07064a4bf65dbdaac7b3ecec8f8d7770a57fe97d 100644 (file)
--- a/src/libgame/sdl.c
+++ b/src/libgame/sdl.c
@@ -62,6 +62,10 @@ static void FinalizeScreen(int draw_target)
   // copy global animations to render target buffer, if defined (above border)
   if (gfx.draw_global_anim_function != NULL)
     gfx.draw_global_anim_function(draw_target, DRAW_GLOBAL_ANIM_STAGE_2);
+
+  // copy tile selection cursor to render target buffer, if defined (above all)
+  if (gfx.draw_tile_cursor_function != NULL)
+    gfx.draw_tile_cursor_function(draw_target);
 }
 
 static void UpdateScreenExt(SDL_Rect *rect, boolean with_frame_delay)
@@ -2536,7 +2540,7 @@ void SDLCloseAudio(void)
 /* event functions                                                           */
 /* ========================================================================= */
 
-void SDLNextEvent(Event *event)
+void SDLWaitEvent(Event *event)
 {
   SDL_WaitEvent(event);
 }
@@ -2988,7 +2992,7 @@ static void DrawTouchInputOverlay()
   static int width = 0, height = 0;
   static int alpha_max = SDL_ALPHA_OPAQUE / 2;
   static int alpha_step = 5;
-  static int alpha_last = 0;
+  static int alpha_last = -1;
   static int alpha = 0;
   boolean active = (overlay.enabled && overlay.active);
 
@@ -3038,7 +3042,6 @@ static void DrawTouchInputOverlay()
     SDL_FreeSurface(surface);
 
     SDL_SetTextureBlendMode(texture, SDL_BLENDMODE_BLEND);
-    SDL_SetTextureAlphaMod(texture, alpha_max);
 
     initialized = TRUE;
   }