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Don't use the offscreen pixmap if it is null (low memory situations)

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git-svn-id: svn://10.0.0.236/trunk@13664 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
pinkerton%netscape.com
1998-10-29 20:03:57 +00:00
parent 699f7b273a
commit 41474b9f25
1 changed files with 11 additions and 10 deletions
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21
mozilla/gfx/src/mac/nsRenderingContextMac.cpp
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@@ -1116,7 +1116,6 @@ NS_IMETHODIMP nsRenderingContextMac :: CopyOffScreenBits(nsDrawingSurface aSrcSu
const nsRect &aDestBounds,
PRUint32 aCopyFlags)
{
PixMapHandle offscreenPM;
PixMapPtr srcpix;
PixMapPtr destpix;
RGBColor rgbblack = {0x0000,0x0000,0x0000};
@@ -1154,15 +1153,17 @@ NS_IMETHODIMP nsRenderingContextMac :: CopyOffScreenBits(nsDrawingSurface aSrcSu
destpix = *((CGrafPtr)destport)->portPixMap;
offscreenPM = ::GetGWorldPixMap((GWorldPtr)aSrcSurf);
LockPixels(offscreenPM);
srcpix = (PixMapPtr)*offscreenPM;
::RGBForeColor(&rgbblack);
::RGBBackColor(&rgbwhite);
::CopyBits((BitMap*)srcpix,(BitMap*)destpix,&srcrect,&dstrect,ditherCopy,0L);
UnlockPixels(offscreenPM);
PixMapHandle offscreenPM = ::GetGWorldPixMap((GWorldPtr)aSrcSurf);
if ( offscreenPM ) {
LockPixels(offscreenPM);
srcpix = (PixMapPtr)*offscreenPM;
::RGBForeColor(&rgbblack);
::RGBBackColor(&rgbwhite);
::CopyBits((BitMap*)srcpix,(BitMap*)destpix,&srcrect,&dstrect,ditherCopy,0L);
UnlockPixels(offscreenPM);
}
return NS_OK;
}