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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/layers/composite/ImageLayerComposite.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/layers/composite/ImageLayerComposite.cpp')
-rw-r--r--gfx/layers/composite/ImageLayerComposite.cpp236
1 files changed, 236 insertions, 0 deletions
diff --git a/gfx/layers/composite/ImageLayerComposite.cpp b/gfx/layers/composite/ImageLayerComposite.cpp
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+++ b/gfx/layers/composite/ImageLayerComposite.cpp
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+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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 "ImageLayerComposite.h"
+#include "CompositableHost.h" // for CompositableHost
+#include "Layers.h" // for WriteSnapshotToDumpFile, etc
+#include "gfx2DGlue.h" // for ToFilter
+#include "gfxEnv.h" // for gfxEnv
+#include "gfxRect.h" // for gfxRect
+#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
+#include "mozilla/gfx/Matrix.h" // for Matrix4x4
+#include "mozilla/gfx/Point.h" // for IntSize, Point
+#include "mozilla/gfx/Rect.h" // for Rect
+#include "mozilla/layers/Compositor.h" // for Compositor
+#include "mozilla/layers/Effects.h" // for EffectChain
+#include "mozilla/layers/ImageHost.h" // for ImageHost
+#include "mozilla/layers/TextureHost.h" // for TextureHost, etc
+#include "mozilla/mozalloc.h" // for operator delete
+#include "nsAString.h"
+#include "mozilla/RefPtr.h" // for nsRefPtr
+#include "nsDebug.h" // for NS_ASSERTION
+#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
+#include "nsString.h" // for nsAutoCString
+
+namespace mozilla {
+namespace layers {
+
+using namespace mozilla::gfx;
+
+ImageLayerComposite::ImageLayerComposite(LayerManagerComposite* aManager)
+ : ImageLayer(aManager, nullptr)
+ , LayerComposite(aManager)
+ , mImageHost(nullptr)
+{
+ MOZ_COUNT_CTOR(ImageLayerComposite);
+ mImplData = static_cast<LayerComposite*>(this);
+}
+
+ImageLayerComposite::~ImageLayerComposite()
+{
+ MOZ_COUNT_DTOR(ImageLayerComposite);
+ MOZ_ASSERT(mDestroyed);
+
+ CleanupResources();
+}
+
+bool
+ImageLayerComposite::SetCompositableHost(CompositableHost* aHost)
+{
+ switch (aHost->GetType()) {
+ case CompositableType::IMAGE:
+ mImageHost = static_cast<ImageHost*>(aHost);
+ return true;
+ default:
+ return false;
+ }
+}
+
+void
+ImageLayerComposite::Disconnect()
+{
+ Destroy();
+}
+
+LayerRenderState
+ImageLayerComposite::GetRenderState()
+{
+ if (mImageHost && mImageHost->IsAttached()) {
+ return mImageHost->GetRenderState();
+ }
+ return LayerRenderState();
+}
+
+Layer*
+ImageLayerComposite::GetLayer()
+{
+ return this;
+}
+
+void
+ImageLayerComposite::SetLayerManager(LayerManagerComposite* aManager)
+{
+ LayerComposite::SetLayerManager(aManager);
+ mManager = aManager;
+ if (mImageHost) {
+ mImageHost->SetCompositor(mCompositor);
+ }
+}
+
+void
+ImageLayerComposite::RenderLayer(const IntRect& aClipRect)
+{
+ if (!mImageHost || !mImageHost->IsAttached()) {
+ return;
+ }
+
+#ifdef MOZ_DUMP_PAINTING
+ if (gfxEnv::DumpCompositorTextures()) {
+ RefPtr<gfx::DataSourceSurface> surf = mImageHost->GetAsSurface();
+ if (surf) {
+ WriteSnapshotToDumpFile(this, surf);
+ }
+ }
+#endif
+
+ mCompositor->MakeCurrent();
+
+ RenderWithAllMasks(this, mCompositor, aClipRect,
+ [&](EffectChain& effectChain, const IntRect& clipRect) {
+ mImageHost->SetCompositor(mCompositor);
+ mImageHost->Composite(this, effectChain,
+ GetEffectiveOpacity(),
+ GetEffectiveTransformForBuffer(),
+ GetSamplingFilter(),
+ clipRect);
+ });
+ mImageHost->BumpFlashCounter();
+}
+
+void
+ImageLayerComposite::ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface)
+{
+ gfx::Matrix4x4 local = GetLocalTransform();
+
+ // Snap image edges to pixel boundaries
+ gfxRect sourceRect(0, 0, 0, 0);
+ if (mImageHost &&
+ mImageHost->IsAttached()) {
+ IntSize size = mImageHost->GetImageSize();
+ sourceRect.SizeTo(size.width, size.height);
+ }
+ // Snap our local transform first, and snap the inherited transform as well.
+ // This makes our snapping equivalent to what would happen if our content
+ // was drawn into a PaintedLayer (gfxContext would snap using the local
+ // transform, then we'd snap again when compositing the PaintedLayer).
+ mEffectiveTransform =
+ SnapTransform(local, sourceRect, nullptr) *
+ SnapTransformTranslation(aTransformToSurface, nullptr);
+
+ if (mScaleMode != ScaleMode::SCALE_NONE &&
+ sourceRect.width != 0.0 && sourceRect.height != 0.0) {
+ NS_ASSERTION(mScaleMode == ScaleMode::STRETCH,
+ "No other scalemodes than stretch and none supported yet.");
+ local.PreScale(mScaleToSize.width / sourceRect.width,
+ mScaleToSize.height / sourceRect.height, 1.0);
+
+ mEffectiveTransformForBuffer =
+ SnapTransform(local, sourceRect, nullptr) *
+ SnapTransformTranslation(aTransformToSurface, nullptr);
+ } else {
+ mEffectiveTransformForBuffer = mEffectiveTransform;
+ }
+
+ ComputeEffectiveTransformForMaskLayers(aTransformToSurface);
+}
+
+bool
+ImageLayerComposite::IsOpaque()
+{
+ if (!mImageHost ||
+ !mImageHost->IsAttached()) {
+ return false;
+ }
+
+ if (mScaleMode == ScaleMode::STRETCH) {
+ return mImageHost->IsOpaque();
+ }
+ return false;
+}
+
+nsIntRegion
+ImageLayerComposite::GetFullyRenderedRegion()
+{
+ if (!mImageHost ||
+ !mImageHost->IsAttached()) {
+ return GetShadowVisibleRegion().ToUnknownRegion();
+ }
+
+ if (mScaleMode == ScaleMode::STRETCH) {
+ nsIntRegion shadowVisibleRegion;
+ shadowVisibleRegion.And(GetShadowVisibleRegion().ToUnknownRegion(), nsIntRegion(gfx::IntRect(0, 0, mScaleToSize.width, mScaleToSize.height)));
+ return shadowVisibleRegion;
+ }
+
+ return GetShadowVisibleRegion().ToUnknownRegion();
+}
+
+CompositableHost*
+ImageLayerComposite::GetCompositableHost()
+{
+ if (mImageHost && mImageHost->IsAttached()) {
+ return mImageHost.get();
+ }
+
+ return nullptr;
+}
+
+void
+ImageLayerComposite::CleanupResources()
+{
+ if (mImageHost) {
+ mImageHost->CleanupResources();
+ mImageHost->Detach(this);
+ }
+ mImageHost = nullptr;
+}
+
+gfx::SamplingFilter
+ImageLayerComposite::GetSamplingFilter()
+{
+ return mSamplingFilter;
+}
+
+void
+ImageLayerComposite::GenEffectChain(EffectChain& aEffect)
+{
+ aEffect.mLayerRef = this;
+ aEffect.mPrimaryEffect = mImageHost->GenEffect(GetSamplingFilter());
+}
+
+void
+ImageLayerComposite::PrintInfo(std::stringstream& aStream, const char* aPrefix)
+{
+ ImageLayer::PrintInfo(aStream, aPrefix);
+ if (mImageHost && mImageHost->IsAttached()) {
+ aStream << "\n";
+ nsAutoCString pfx(aPrefix);
+ pfx += " ";
+ mImageHost->PrintInfo(aStream, pfx.get());
+ }
+}
+
+} // namespace layers
+} // namespace mozilla