170 lines
4.4 KiB
C++
170 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "CanvasLayerComposite.h"
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#include "composite/CompositableHost.h" // for CompositableHost
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#include "gfx2DGlue.h" // for ToFilter
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#include "gfxEnv.h" // for gfxEnv, etc
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#include "mozilla/gfx/Matrix.h" // for Matrix4x4
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#include "mozilla/gfx/Point.h" // for Point
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#include "mozilla/gfx/Rect.h" // for Rect
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#include "mozilla/layers/Compositor.h" // for Compositor
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#include "mozilla/layers/Effects.h" // for EffectChain
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#include "mozilla/mozalloc.h" // for operator delete
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#include "nsAString.h"
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#include "mozilla/RefPtr.h" // for nsRefPtr
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#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
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#include "nsString.h" // for nsAutoCString
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#include "gfxVR.h"
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namespace mozilla {
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namespace layers {
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using namespace mozilla::gfx;
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CanvasLayerComposite::CanvasLayerComposite(LayerManagerComposite* aManager)
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: CanvasLayer(aManager, nullptr)
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, LayerComposite(aManager)
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, mCompositableHost(nullptr)
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{
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MOZ_COUNT_CTOR(CanvasLayerComposite);
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mImplData = static_cast<LayerComposite*>(this);
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}
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CanvasLayerComposite::~CanvasLayerComposite()
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{
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MOZ_COUNT_DTOR(CanvasLayerComposite);
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CleanupResources();
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}
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bool
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CanvasLayerComposite::SetCompositableHost(CompositableHost* aHost)
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{
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switch (aHost->GetType()) {
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case CompositableType::IMAGE: {
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if (mCompositableHost && aHost != mCompositableHost) {
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mCompositableHost->Detach(this);
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}
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mCompositableHost = aHost;
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return true;
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}
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default:
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return false;
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}
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}
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Layer*
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CanvasLayerComposite::GetLayer()
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{
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return this;
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}
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void
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CanvasLayerComposite::SetLayerManager(LayerManagerComposite* aManager)
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{
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LayerComposite::SetLayerManager(aManager);
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mManager = aManager;
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if (mCompositableHost && mCompositor) {
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mCompositableHost->SetCompositor(mCompositor);
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}
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}
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LayerRenderState
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CanvasLayerComposite::GetRenderState()
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{
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if (mDestroyed || !mCompositableHost || !mCompositableHost->IsAttached()) {
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return LayerRenderState();
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}
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return mCompositableHost->GetRenderState();
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}
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void
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CanvasLayerComposite::RenderLayer(const IntRect& aClipRect)
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{
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if (!mCompositableHost || !mCompositableHost->IsAttached()) {
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return;
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}
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mCompositor->MakeCurrent();
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#ifdef MOZ_DUMP_PAINTING
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if (gfxEnv::DumpCompositorTextures()) {
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RefPtr<gfx::DataSourceSurface> surf = mCompositableHost->GetAsSurface();
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WriteSnapshotToDumpFile(this, surf);
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}
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#endif
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RenderWithAllMasks(this, mCompositor, aClipRect,
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[&](EffectChain& effectChain, const Rect& clipRect) {
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mCompositableHost->Composite(this, effectChain,
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GetEffectiveOpacity(),
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GetEffectiveTransform(),
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GetEffectFilter(),
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clipRect);
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});
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mCompositableHost->BumpFlashCounter();
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}
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CompositableHost*
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CanvasLayerComposite::GetCompositableHost()
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{
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if (mCompositableHost && mCompositableHost->IsAttached()) {
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return mCompositableHost.get();
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}
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return nullptr;
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}
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void
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CanvasLayerComposite::CleanupResources()
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{
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if (mCompositableHost) {
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mCompositableHost->Detach(this);
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}
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mCompositableHost = nullptr;
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}
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gfx::Filter
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CanvasLayerComposite::GetEffectFilter()
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{
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gfx::Filter filter = mFilter;
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#ifdef ANDROID
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// Bug 691354
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// Using the LINEAR filter we get unexplained artifacts.
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// Use NEAREST when no scaling is required.
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Matrix matrix;
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bool is2D = GetEffectiveTransform().Is2D(&matrix);
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if (is2D && !ThebesMatrix(matrix).HasNonTranslationOrFlip()) {
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filter = Filter::POINT;
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}
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#endif
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return filter;
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}
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void
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CanvasLayerComposite::GenEffectChain(EffectChain& aEffect)
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{
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aEffect.mLayerRef = this;
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aEffect.mPrimaryEffect = mCompositableHost->GenEffect(GetEffectFilter());
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}
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void
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CanvasLayerComposite::PrintInfo(std::stringstream& aStream, const char* aPrefix)
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{
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CanvasLayer::PrintInfo(aStream, aPrefix);
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aStream << "\n";
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if (mCompositableHost && mCompositableHost->IsAttached()) {
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nsAutoCString pfx(aPrefix);
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pfx += " ";
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mCompositableHost->PrintInfo(aStream, pfx.get());
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}
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}
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} // namespace layers
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} // namespace mozilla
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