TransparentBlt:
authorGregor Schneider <grschneider@gmail.com>
Sat, 1 Nov 2008 20:44:40 +0000 (20:44 +0000)
committerGregor Schneider <grschneider@gmail.com>
Sat, 1 Nov 2008 20:44:40 +0000 (20:44 +0000)
- Fix bits and offset calculation (8 << 2 is not 24!)
- Fixes Download! bitmap in 24bpp mode, see bug #1583

svn path=/trunk/; revision=37139

reactos/subsystems/win32/win32k/dib/dib24bpp.c

index a079d75..e639eea 100644 (file)
@@ -559,9 +559,9 @@ DIB_24BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
 
   SourceY = SourcePoint->y;
   DestBits = (BYTE*)((PBYTE)DestSurf->pvScan0 +
-                      (DestRect->left << 2) +
+                      (DestRect->left * 3) +
                       DestRect->top * DestSurf->lDelta);
-  wd = DestSurf->lDelta - ((DestRect->right - DestRect->left) << 2);
+  wd = DestSurf->lDelta - ((DestRect->right - DestRect->left) * 3);
 
   for(Y = DestRect->top; Y < DestRect->bottom; Y++)
   {