Shi Quan He (of Corel)

The implementation of StretchBlt in WINE does not use the foreground and background color when a bitmap is copied from mono to mono. This is not the case in the actual implementation under Windows but MSDN did not document it.

Shi Quan He (of Corel)
960dc908 · Alexandre Julliard · 8b5231df · 960dc908
Commit 960dc908 authored Jun 08, 2000 by Alexandre Julliard
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Showing with 15 additions and 2 deletions

bitblt.c graphics/x11drv/bitblt.c +15 -2

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--- a/graphics/x11drv/bitblt.c
+++ b/graphics/x11drv/bitblt.c
@@ -894,8 +894,21 @@ static void BITBLT_GetSrcArea( DC *dcSrc, DC *dcDst, Pixmap pixmap, GC gc,
        if (!X11DRV_PALETTE_XPixelToPalette ||
            (dcDst->w.bitsPerPixel == 1))  /* monochrome -> monochrome */
        {
-            XCopyArea( display, physDevSrc->drawable, pixmap, gc,
+            if (dcDst->w.bitsPerPixel == 1)
-                       visRectSrc->left, visRectSrc->top, width, height, 0, 0);
+            {
+                /* MSDN says if StretchBlt must convert a bitmap from monochrome
+                   to color or vice versa, the forground and background color of
+                   the device context are used.  In fact, it also applies to the
+                   case when it is converted from mono to mono. */ 
+                XSetBackground( display, gc, physDevDst->textPixel );
+                XSetForeground( display, gc, physDevDst->backgroundPixel );
+                XCopyPlane( display, physDevSrc->drawable, pixmap, gc,
+                            visRectSrc->left, visRectSrc->top,
+                            width, height, 0, 0, 1);
+            }
+            else
+                XCopyArea( display, physDevSrc->drawable, pixmap, gc, visRectSrc
+                           ->left, visRectSrc->top, width, height, 0, 0);
        }
        else  /* color -> color */
        {