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Make sure we create a polychrome bitmap from the dib. CreateDIBitmap 

doesn't do this when the dib is 1bpp and has a black/white colour
table.  In such cases this resulted in a monochrome bitmap being
StretchBlt'ed which is clearly incorrect since we then start using
text and bkgnd colours.
This commit is contained in:
Huw Davies 2003-11-12 22:42:26 +00:00 committed by Alexandre Julliard
parent 50c9ff030f
commit 352b8bc9e8
1 changed files with 12 additions and 15 deletions
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27
objects/dib.c
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@ -164,7 +164,7 @@ INT WINAPI StretchDIBits(HDC hdc, INT xDst, INT yDst, INT widthDst,
dc = DC_GetDCUpdate( hdc );
if(!dc) return FALSE;
if(dc->funcs->pStretchDIBits)
{
heightSrc = dc->funcs->pStretchDIBits(dc->physDev, xDst, yDst, widthDst,
@ -179,6 +179,10 @@ INT WINAPI StretchDIBits(HDC hdc, INT xDst, INT yDst, INT widthDst,
GDI_ReleaseObj( hdc );
hdcMem = CreateCompatibleDC( hdc );
hBitmap = CreateCompatibleBitmap(hdc, info->bmiHeader.biWidth,
info->bmiHeader.biHeight);
hOldBitmap = SelectObject( hdcMem, hBitmap );
if (info->bmiHeader.biCompression == BI_RLE4 ||
info->bmiHeader.biCompression == BI_RLE8) {
@ -196,22 +200,15 @@ INT WINAPI StretchDIBits(HDC hdc, INT xDst, INT yDst, INT widthDst,
* pStretchDIBits function shall be implemented.
* ericP (2000/09/09)
*/
hBitmap = CreateCompatibleBitmap(hdc, info->bmiHeader.biWidth,
info->bmiHeader.biHeight);
hOldBitmap = SelectObject( hdcMem, hBitmap );
/* copy existing bitmap from destination dc */
StretchBlt( hdcMem, xSrc, abs(info->bmiHeader.biHeight) - heightSrc - ySrc,
widthSrc, heightSrc, hdc, xDst, yDst, widthDst, heightDst,
dwRop );
SetDIBits(hdcMem, hBitmap, 0, info->bmiHeader.biHeight, bits,
info, DIB_RGB_COLORS);
/* copy existing bitmap from destination dc */
StretchBlt( hdcMem, xSrc, abs(info->bmiHeader.biHeight) - heightSrc - ySrc,
widthSrc, heightSrc, hdc, xDst, yDst, widthDst, heightDst,
dwRop );
}
} else {
hBitmap = CreateDIBitmap( hdc, &info->bmiHeader, CBM_INIT,
bits, info, wUsage );
hOldBitmap = SelectObject( hdcMem, hBitmap );
}
SetDIBits(hdcMem, hBitmap, 0, info->bmiHeader.biHeight, bits,
info, wUsage);
/* Origin for DIBitmap may be bottom left (positive biHeight) or top
left (negative biHeight) */