fixed redraw/fade bugs when redefining the playfield size or position

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

diff --git a/src/libgame/system.c b/src/libgame/system.c
index 9484cbd2e5b5840c5b8f10083f575676885d217b..eec5d192960ac9e784d5232ad8e47ef5ccb90dc1 100644 (file)
--- a/src/libgame/system.c
+++ b/src/libgame/system.c
@@ -44,11 +44,6 @@ int                  level_nr;
 
 struct LevelStats      level_stats[MAX_LEVELS];
 
-Display                       *display = NULL;
-Visual                *visual = NULL;
-int                    screen = 0;
-Colormap               cmap = None;
-
 DrawWindow            *window = NULL;
 DrawBuffer            *backbuffer = NULL;
 DrawBuffer            *drawto = NULL;
@@ -175,6 +170,8 @@ void InitGfxFieldInfo(int sx, int sy, int sxsize, int sysize,
 
   gfx.field_save_buffer = field_save_buffer;
 
+  gfx.drawing_area_changed = FALSE;
+
   SetDrawDeactivationMask(REDRAW_NONE);                /* do not deactivate drawing */
   SetDrawBackgroundMask(REDRAW_NONE);          /* deactivate masked drawing */
 }
@@ -468,6 +465,16 @@ boolean DrawingOnBackground(int x, int y)
          CheckDrawingArea(x, y, 1, 1, gfx.draw_background_mask));
 }
 
+boolean DrawingAreaChanged()
+{
+  int drawing_area_changed = gfx.drawing_area_changed;
+
+  // reset flag for change of drawing area after querying it
+  gfx.drawing_area_changed = FALSE;
+
+  return drawing_area_changed;
+}
+
 static boolean InClippedRectangle(Bitmap *bitmap, int *x, int *y,
                                  int *width, int *height, boolean is_dest)
 {
@@ -660,14 +667,6 @@ void ClearRectangleOnBackground(Bitmap *bitmap, int x, int y,
     ClearRectangle(bitmap, x, y, width, height);
 }
 
-void SetClipMask(Bitmap *bitmap, GC clip_gc, Pixmap clip_pixmap)
-{
-}
-
-void SetClipOrigin(Bitmap *bitmap, GC clip_gc, int clip_x, int clip_y)
-{
-}
-
 void BlitBitmapMasked(Bitmap *src_bitmap, Bitmap *dst_bitmap,
                      int src_x, int src_y, int width, int height,
                      int dst_x, int dst_y)
@@ -690,8 +689,6 @@ void BlitBitmapOnBackground(Bitmap *src_bitmap, Bitmap *dst_bitmap,
               dst_x, dst_y);
 
     /* draw foreground */
-    SetClipOrigin(src_bitmap, src_bitmap->stored_clip_gc,
-                 dst_x - src_x, dst_y - src_y);
     BlitBitmapMasked(src_bitmap, dst_bitmap, src_x, src_y, width, height,
                     dst_x, dst_y);
   }
@@ -774,16 +771,6 @@ Pixel GetPixelFromRGBcompact(Bitmap *bitmap, unsigned int color)
   return GetPixelFromRGB(bitmap, color_r, color_g, color_b);
 }
 
-/* execute all pending screen drawing operations */
-void FlushDisplay(void)
-{
-}
-
-/* execute and wait for all pending screen drawing operations */
-void SyncDisplay(void)
-{
-}
-
 void KeyboardAutoRepeatOn(void)
 {
 #if defined(TARGET_SDL2)