fixed bug with drawing masked borders for off-screen viewports

[rocksndiamonds.git] / src / tools.c

diff --git a/src/tools.c b/src/tools.c
index cee9fae4b12280e7f050ae465b091e93e89550b0..2a36ee412fb7e5ceb7f43f8fb096da4f6b3b10a9 100644 (file)
--- a/src/tools.c
+++ b/src/tools.c
@@ -293,6 +293,9 @@ static void DrawMaskedBorderExt_Rect(int x, int y, int width, int height,
 {
   Bitmap *bitmap = getGlobalBorderBitmapFromGameStatus();
 
+  if (x == -1 && y == -1)
+    return;
+
   if (blit_to_screen)
     BlitToScreenMasked(bitmap, x, y, width, height, x, y);
   else
@@ -550,7 +553,7 @@ void BackToFront()
   redraw_mask = REDRAW_NONE;
 
   // force screen redraw in every frame to continue drawing global animations
-  redraw_mask = REDRAW_ALL;
+  redraw_mask = REDRAW_FIELD;
 
 #if DEBUG_FRAME_TIME
   PrintFrameTimeDebugging();