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b=359147, big images don't redraw, r=stuart

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vladimir%pobox.com 2006-11-10 23:34:05 +00:00
parent 227e152298
commit 77d5fd9777
1 changed files with 12 additions and 4 deletions
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16
gfx/src/thebes/nsThebesImage.cpp
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@ -238,10 +238,18 @@ nsThebesImage::Optimize(nsIDeviceContext* aContext)
// a distinction between DIB and DDB and we want to use DDBs as much
// as we can.
if (mWinSurface) {
nsRefPtr<gfxWindowsSurface> wsurf = mWinSurface->OptimizeToDDB(nsnull, mFormat, mWidth, mHeight);
if (wsurf) {
mOptSurface = wsurf;
} else {
// Don't do DDBs for large images; see bug 359147
// We use 1024 as a reasonable sized maximum; the real fix
// will be to make sure we don't ever make a DDB that's bigger
// than the primary screen size (rule of thumb).
if (mWidth <= 1024 && mHeight <= 1024) {
nsRefPtr<gfxWindowsSurface> wsurf = mWinSurface->OptimizeToDDB(nsnull, mFormat, mWidth, mHeight);
if (wsurf) {
mOptSurface = wsurf;
}
}
if (!mOptSurface) {
// just use the DIB
mOptSurface = mWinSurface;
}