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Commit 514b006d authored by Alexandre Julliard's avatar Alexandre Julliard
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gdi32: Force colors to black and white for 1-bpp source in AlphaBlend.

parent fb4dc8a5
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dlls/gdi32/bitblt.c
View file @ 514b006d
...@@ -293,6 +293,20 @@ BOOL nulldrv_AlphaBlend( PHYSDEV dst_dev, struct bitblt_coords *dst, ...@@ -293,6 +293,20 @@ BOOL nulldrv_AlphaBlend( PHYSDEV dst_dev, struct bitblt_coords *dst,
err = dst_dev->funcs->pBlendImage( dst_dev, dst_info, &bits, src, dst, func ); err = dst_dev->funcs->pBlendImage( dst_dev, dst_info, &bits, src, dst, func );
if (err == ERROR_BAD_FORMAT) if (err == ERROR_BAD_FORMAT)
{ {
/* 1-bpp source without a color table uses black & white */
if (src_info->bmiHeader.biBitCount == 1 && !src_info->bmiHeader.biClrUsed)
{
src_info->bmiColors[0].rgbRed = 0;
src_info->bmiColors[0].rgbGreen = 0;
src_info->bmiColors[0].rgbBlue = 0;
src_info->bmiColors[0].rgbReserved = 0;
src_info->bmiColors[1].rgbRed = 0xff;
src_info->bmiColors[1].rgbGreen = 0xff;
src_info->bmiColors[1].rgbBlue = 0xff;
src_info->bmiColors[1].rgbReserved = 0;
src_info->bmiHeader.biClrUsed = 2;
}
err = convert_bits( src_info, src, dst_info, &bits ); err = convert_bits( src_info, src, dst_info, &bits );
if (!err) err = dst_dev->funcs->pBlendImage( dst_dev, dst_info, &bits, src, dst, func ); if (!err) err = dst_dev->funcs->pBlendImage( dst_dev, dst_info, &bits, src, dst, func );
} }
......
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