From: Xiang, Haihao <haihao.xiang@intel.com>
Date: Tue, 31 Jul 2007 14:40:42 +0000 (+0800)
Subject: i965: fix bad casts in do_blit_bitmap to support WindowPos correctly
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e66757c8babe6968ea2e506d1214c8063cbd0760;p=mesa.git

i965: fix bad casts in do_blit_bitmap to support WindowPos correctly
---

diff --git a/src/mesa/drivers/dri/i965/intel_pixel_bitmap.c b/src/mesa/drivers/dri/i965/intel_pixel_bitmap.c
index 421fcc5e511..f3f062e6517 100644
--- a/src/mesa/drivers/dri/i965/intel_pixel_bitmap.c
+++ b/src/mesa/drivers/dri/i965/intel_pixel_bitmap.c
@@ -226,10 +226,10 @@ do_blit_bitmap( GLcontext *ctx,
       dsty = dPriv->y + (dPriv->h - dsty - height);  
       dstx = dPriv->x + dstx;
 
-      dest_rect.x1 = dstx;
-      dest_rect.y1 = dsty;
-      dest_rect.x2 = dstx + width;
-      dest_rect.y2 = dsty + height;
+      dest_rect.x1 = dstx < 0 ? 0 : dstx;
+      dest_rect.y1 = dsty < 0 ? 0 : dsty;
+      dest_rect.x2 = dstx + width < 0 ? 0 : dstx + width;
+      dest_rect.y2 = dsty + height < 0 ? 0 : dsty + height;
 
       for (i = 0; i < nbox; i++) {
          drm_clip_rect_t rect;