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gdi32: Fix StretchDIBits color mapping for monochrome bitmaps without a color table.

Browse source 
This is the equivalent of df924f6a8c for
the StretchDIBits case.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2015-12-04 21:40:14 +09:00
parent 57f9c33c08
commit eddc4609ec
1 changed files with 20 additions and 9 deletions
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29
dlls/gdi32/dib.c
View file

@ -567,22 +567,33 @@ INT nulldrv_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst, INT he
err = dev->funcs->pPutImage( dev, clip, dst_info, &src_bits, &src, &dst, rop );
if (err == ERROR_BAD_FORMAT)
{
DWORD dst_colors = dst_info->bmiHeader.biClrUsed;
/* 1-bpp destination without a color table requires a fake 1-entry table
* that contains only the background color */
if (dst_info->bmiHeader.biBitCount == 1 && !dst_info->bmiHeader.biClrUsed)
* that contains only the background color; except with a 1-bpp source,
* in which case it uses the source colors */
if (dst_info->bmiHeader.biBitCount == 1 && !dst_colors)
{
COLORREF color = GetBkColor( dev->hdc );
dst_info->bmiColors[0].rgbRed = GetRValue( color );
dst_info->bmiColors[0].rgbGreen = GetGValue( color );
dst_info->bmiColors[0].rgbBlue = GetBValue( color );
dst_info->bmiColors[0].rgbReserved = 0;
dst_info->bmiHeader.biClrUsed = 1;
if (src_info->bmiHeader.biBitCount > 1)
{
COLORREF color = GetBkColor( dev->hdc );
dst_info->bmiColors[0].rgbRed = GetRValue( color );
dst_info->bmiColors[0].rgbGreen = GetGValue( color );
dst_info->bmiColors[0].rgbBlue = GetBValue( color );
dst_info->bmiColors[0].rgbReserved = 0;
dst_info->bmiHeader.biClrUsed = 1;
}
else
{
memcpy( dst_info->bmiColors, src_info->bmiColors, 2 * sizeof(dst_info->bmiColors[0]) );
dst_info->bmiHeader.biClrUsed = 2;
}
}
if (!(err = convert_bits( src_info, &src, dst_info, &src_bits )))
{
/* get rid of the fake 1-bpp table */
if (dst_info->bmiHeader.biClrUsed == 1) dst_info->bmiHeader.biClrUsed = 0;
dst_info->bmiHeader.biClrUsed = dst_colors;
err = dev->funcs->pPutImage( dev, clip, dst_info, &src_bits, &src, &dst, rop );
}
}