Maarten Lankhorst : x11drv: Fix AlphaBlend read boundaries.

[Alexandre Julliard]

Module: wine
Branch: refs/heads/master
Commit: 0cbf8062a1818ab1f7bc8f9a06c5f7812eee87f9
URL:    http://source.winehq.org/git/?p=wine.git;a=commit;h=0cbf8062a1818ab1f7bc8f9a...

Author: Maarten Lankhorst 
Date:   Mon Jan 30 14:57:08 2006 +0100

x11drv: Fix AlphaBlend read boundaries.

---

dlls/x11drv/xrender.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/dlls/x11drv/xrender.c b/dlls/x11drv/xrender.c
index 81e7398..a782ea5 100644
--- a/dlls/x11drv/xrender.c
+++ b/dlls/x11drv/xrender.c
@@ -1554,14 +1554,14 @@ BOOL X11DRV_AlphaBlend(X11DRV_PDEVICE *d
         top_down = TRUE;
         dstbits += widthSrc * (heightSrc - 1) * 4;
         y2 = ySrc;
-        y = y2 + heightSrc;
+        y = y2 + heightSrc - 1;
     }
     else
     {
         y = dib.dsBmih.biHeight - ySrc - 1;
-        y2 = y - heightSrc;
+        y2 = y - heightSrc + 1;
     }
-    for(; y > y2; y--) {
+    for(; y >= y2; y--) {
         memcpy(dstbits, (char *)dib.dsBm.bmBits + y * dib.dsBm.bmWidthBytes + xSrc * 4,
                widthSrc * 4);
         dstbits += (top_down ? -1 : 1) * widthSrc * 4;