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Bug 740580 - Add Azure support to nsCanvasFrame. r=roc

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This commit is contained in:
Anthony Jones
2012-10-02 22:09:12 -04:00
parent 439f0017be
commit 89ea6f44d2
1 changed files with 26 additions and 5 deletions
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31
layout/generic/nsCanvasFrame.cpp
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@@ -22,6 +22,7 @@
#include "nsDisplayList.h"
#include "nsCSSFrameConstructor.h"
#include "nsFrameManager.h"
#include "gfxPlatform.h"
// for focus
#include "nsIScrollableFrame.h"
@@ -210,12 +211,32 @@ nsDisplayCanvasBackground::Paint(nsDisplayListBuilder* aBuilder,
#ifndef MOZ_GFX_OPTIMIZE_MOBILE
if (IsSingleFixedPositionImage(aBuilder, bgClipRect) && aBuilder->IsPaintingToWindow() && !aBuilder->IsCompositingCheap()) {
surf = static_cast<gfxASurface*>(GetUnderlyingFrame()->Properties().Get(nsIFrame::CachedBackgroundImage()));
nsRefPtr<gfxASurface> destSurf = dest->CurrentSurface();
if (surf && surf->GetType() == destSurf->GetType()) {
BlitSurface(dest, mDestRect, surf);
return;
if (dest->IsCairo()) {
nsRefPtr<gfxASurface> destSurf = dest->CurrentSurface();
if (surf && surf->GetType() == destSurf->GetType()) {
BlitSurface(dest, mDestRect, surf);
return;
}
surf = destSurf->CreateSimilarSurface(
gfxASurface::CONTENT_COLOR_ALPHA,
gfxIntSize(ceil(mDestRect.width), ceil(mDestRect.height)));
} else {
if (surf) {
mozilla::gfx::DrawTarget* dt = dest->GetDrawTarget();
mozilla::RefPtr<mozilla::gfx::SourceSurface> source =
gfxPlatform::GetPlatform()->GetSourceSurfaceForSurface(dt, surf);
if (source) {
// Could be non-integer pixel alignment
dt->DrawSurface(source,
mozilla::gfx::Rect(mDestRect.x, mDestRect.y, mDestRect.width, mDestRect.height),
mozilla::gfx::Rect(0, 0, mDestRect.width, mDestRect.height));
return;
}
}
surf = gfxPlatform::GetPlatform()->CreateOffscreenImageSurface(
gfxIntSize(ceil(mDestRect.width), ceil(mDestRect.height)),
gfxASurface::CONTENT_COLOR_ALPHA);
}
surf = destSurf->CreateSimilarSurface(gfxASurface::CONTENT_COLOR_ALPHA, gfxIntSize(ceil(mDestRect.width), ceil(mDestRect.height)));
if (surf) {
ctx = new gfxContext(surf);
ctx->Translate(-gfxPoint(mDestRect.x, mDestRect.y));