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Bug 867009 (Part 1) - Remove imgFrame::Extract. r=joe

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This commit is contained in:
Seth Fowler 2013-05-13 14:54:40 -07:00
parent b757634fd8
commit 736dd852cb
2 changed files with 0 additions and 53 deletions
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51
image/src/imgFrame.cpp
View File

@ -476,57 +476,6 @@ void imgFrame::Draw(gfxContext *aContext, gfxPattern::GraphicsFilter aFilter,
}
}
nsresult imgFrame::Extract(const nsIntRect& aRegion, imgFrame** aResult)
{
nsAutoPtr<imgFrame> subImage(new imgFrame());
// The scaling problems described in bug 468496 are especially
// likely to be visible for the sub-image, as at present the only
// user is the border-image code and border-images tend to get
// stretched a lot. At the same time, the performance concerns
// that prevent us from just using Cairo's fallback scaler when
// accelerated graphics won't cut it are less relevant to such
// images, since they also tend to be small. Thus, we forcibly
// disable the use of anything other than a client-side image
// surface for the sub-image; this ensures that the correct
// (albeit slower) Cairo fallback scaler will be used.
subImage->mNeverUseDeviceSurface = true;
nsresult rv = subImage->Init(0, 0, aRegion.width, aRegion.height,
mFormat, mPaletteDepth);
NS_ENSURE_SUCCESS(rv, rv);
subImage->SetAsNonPremult(mNonPremult);
// scope to destroy ctx
{
gfxContext ctx(subImage->ThebesSurface());
ctx.SetOperator(gfxContext::OPERATOR_SOURCE);
if (mSinglePixel) {
ctx.SetDeviceColor(mSinglePixelColor);
} else {
// SetSource() places point (0,0) of its first argument at
// the coordinages given by its second argument. We want
// (x,y) of the image to be (0,0) of source space, so we
// put (0,0) of the image at (-x,-y).
ctx.SetSource(this->ThebesSurface(), gfxPoint(-aRegion.x, -aRegion.y));
}
ctx.Rectangle(gfxRect(0, 0, aRegion.width, aRegion.height));
ctx.Fill();
}
nsIntRect filled(0, 0, aRegion.width, aRegion.height);
rv = subImage->ImageUpdated(filled);
NS_ENSURE_SUCCESS(rv, rv);
subImage->Optimize();
*aResult = subImage.forget();
return NS_OK;
}
nsresult imgFrame::ImageUpdated(const nsIntRect &aUpdateRect)
{
mDecoded.UnionRect(mDecoded, aUpdateRect);

2
image/src/imgFrame.h
View File

@ -38,8 +38,6 @@ public:
const nsIntMargin &aPadding, const nsIntRect &aSubimage,
uint32_t aImageFlags = imgIContainer::FLAG_NONE);
nsresult Extract(const nsIntRect& aRegion, imgFrame** aResult);
nsresult ImageUpdated(const nsIntRect &aUpdateRect);
nsIntRect GetRect() const;