зеркало из https://github.com/mozilla/gecko-dev.git
141 строка
4.4 KiB
C++
141 строка
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "CanvasLayerComposite.h"
|
|
#include "composite/CompositableHost.h" // for CompositableHost
|
|
#include "gfx2DGlue.h" // for ToFilter
|
|
#include "gfxEnv.h" // for gfxEnv, etc
|
|
#include "mozilla/gfx/Matrix.h" // for Matrix4x4
|
|
#include "mozilla/gfx/Point.h" // for Point
|
|
#include "mozilla/gfx/Rect.h" // for Rect
|
|
#include "mozilla/layers/Compositor.h" // for Compositor
|
|
#include "mozilla/layers/Effects.h" // for EffectChain
|
|
#include "mozilla/mozalloc.h" // for operator delete
|
|
#include "nsAString.h"
|
|
#include "mozilla/RefPtr.h" // for nsRefPtr
|
|
#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
|
|
#include "nsString.h" // for nsAutoCString
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
using namespace mozilla::gfx;
|
|
|
|
CanvasLayerComposite::CanvasLayerComposite(LayerManagerComposite* aManager)
|
|
: CanvasLayer(aManager, nullptr),
|
|
LayerComposite(aManager),
|
|
mCompositableHost(nullptr) {
|
|
MOZ_COUNT_CTOR(CanvasLayerComposite);
|
|
mImplData = static_cast<LayerComposite*>(this);
|
|
}
|
|
|
|
CanvasLayerComposite::~CanvasLayerComposite() {
|
|
MOZ_COUNT_DTOR(CanvasLayerComposite);
|
|
|
|
CleanupResources();
|
|
}
|
|
|
|
bool CanvasLayerComposite::SetCompositableHost(CompositableHost* aHost) {
|
|
switch (aHost->GetType()) {
|
|
case CompositableType::IMAGE: {
|
|
if (mCompositableHost && aHost != mCompositableHost) {
|
|
mCompositableHost->Detach(this);
|
|
}
|
|
mCompositableHost = aHost;
|
|
return true;
|
|
}
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
Layer* CanvasLayerComposite::GetLayer() { return this; }
|
|
|
|
void CanvasLayerComposite::SetLayerManager(HostLayerManager* aManager) {
|
|
LayerComposite::SetLayerManager(aManager);
|
|
mManager = aManager;
|
|
if (mCompositableHost && mCompositor) {
|
|
mCompositableHost->SetTextureSourceProvider(mCompositor);
|
|
}
|
|
}
|
|
|
|
void CanvasLayerComposite::RenderLayer(const IntRect& aClipRect,
|
|
const Maybe<gfx::Polygon>& aGeometry) {
|
|
if (!mCompositableHost || !mCompositableHost->IsAttached()) {
|
|
return;
|
|
}
|
|
|
|
mCompositor->MakeCurrent();
|
|
|
|
#ifdef MOZ_DUMP_PAINTING
|
|
if (gfxEnv::DumpCompositorTextures()) {
|
|
RefPtr<gfx::DataSourceSurface> surf = mCompositableHost->GetAsSurface();
|
|
if (surf) {
|
|
WriteSnapshotToDumpFile(this, surf);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
RenderWithAllMasks(this, mCompositor, aClipRect,
|
|
[&](EffectChain& effectChain, const IntRect& clipRect) {
|
|
mCompositableHost->Composite(
|
|
mCompositor, this, effectChain,
|
|
GetEffectiveOpacity(), GetEffectiveTransform(),
|
|
GetSamplingFilter(), clipRect);
|
|
});
|
|
|
|
mCompositableHost->BumpFlashCounter();
|
|
}
|
|
|
|
CompositableHost* CanvasLayerComposite::GetCompositableHost() {
|
|
if (mCompositableHost && mCompositableHost->IsAttached()) {
|
|
return mCompositableHost.get();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void CanvasLayerComposite::CleanupResources() {
|
|
if (mCompositableHost) {
|
|
mCompositableHost->Detach(this);
|
|
}
|
|
mCompositableHost = nullptr;
|
|
}
|
|
|
|
gfx::SamplingFilter CanvasLayerComposite::GetSamplingFilter() {
|
|
gfx::SamplingFilter filter = mSamplingFilter;
|
|
#ifdef ANDROID
|
|
// Bug 691354
|
|
// Using the LINEAR filter we get unexplained artifacts.
|
|
// Use NEAREST when no scaling is required.
|
|
Matrix matrix;
|
|
bool is2D = GetEffectiveTransform().Is2D(&matrix);
|
|
if (is2D && !ThebesMatrix(matrix).HasNonTranslationOrFlip()) {
|
|
filter = SamplingFilter::POINT;
|
|
}
|
|
#endif
|
|
return filter;
|
|
}
|
|
|
|
void CanvasLayerComposite::GenEffectChain(EffectChain& aEffect) {
|
|
aEffect.mLayerRef = this;
|
|
aEffect.mPrimaryEffect = mCompositableHost->GenEffect(GetSamplingFilter());
|
|
}
|
|
|
|
void CanvasLayerComposite::PrintInfo(std::stringstream& aStream,
|
|
const char* aPrefix) {
|
|
CanvasLayer::PrintInfo(aStream, aPrefix);
|
|
aStream << "\n";
|
|
if (mCompositableHost && mCompositableHost->IsAttached()) {
|
|
nsAutoCString pfx(aPrefix);
|
|
pfx += " ";
|
|
mCompositableHost->PrintInfo(aStream, pfx.get());
|
|
}
|
|
}
|
|
|
|
} // namespace layers
|
|
} // namespace mozilla
|