The Tor Browser / file comparison
comparison: gfx/layers/composite/CanvasLayerComposite.cpp
gfx/layers/composite/CanvasLayerComposite.cpp
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:4bfb5477175b |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "CanvasLayerComposite.h" | |
| 7 #include "composite/CompositableHost.h" // for CompositableHost | |
| 8 #include "gfx2DGlue.h" // for ToFilter, ToMatrix4x4 | |
| 9 #include "GraphicsFilter.h" // for GraphicsFilter | |
| 10 #include "gfxUtils.h" // for gfxUtils, etc | |
| 11 #include "mozilla/gfx/Matrix.h" // for Matrix4x4 | |
| 12 #include "mozilla/gfx/Point.h" // for Point | |
| 13 #include "mozilla/gfx/Rect.h" // for Rect | |
| 14 #include "mozilla/layers/Compositor.h" // for Compositor | |
| 15 #include "mozilla/layers/Effects.h" // for EffectChain | |
| 16 #include "mozilla/mozalloc.h" // for operator delete | |
| 17 #include "nsAString.h" | |
| 18 #include "nsAutoPtr.h" // for nsRefPtr | |
| 19 #include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc | |
| 20 #include "nsPoint.h" // for nsIntPoint | |
| 21 #include "nsString.h" // for nsAutoCString | |
| 22 | |
| 23 using namespace mozilla; | |
| 24 using namespace mozilla::layers; | |
| 25 using namespace mozilla::gfx; | |
| 26 | |
| 27 CanvasLayerComposite::CanvasLayerComposite(LayerManagerComposite* aManager) | |
| 28 : CanvasLayer(aManager, nullptr) | |
| 29 , LayerComposite(aManager) | |
| 30 , mImageHost(nullptr) | |
| 31 { | |
| 32 MOZ_COUNT_CTOR(CanvasLayerComposite); | |
| 33 mImplData = static_cast<LayerComposite*>(this); | |
| 34 } | |
| 35 | |
| 36 CanvasLayerComposite::~CanvasLayerComposite() | |
| 37 { | |
| 38 MOZ_COUNT_DTOR(CanvasLayerComposite); | |
| 39 | |
| 40 CleanupResources(); | |
| 41 } | |
| 42 | |
| 43 bool | |
| 44 CanvasLayerComposite::SetCompositableHost(CompositableHost* aHost) | |
| 45 { | |
| 46 switch (aHost->GetType()) { | |
| 47 case BUFFER_IMAGE_SINGLE: | |
| 48 case BUFFER_IMAGE_BUFFERED: | |
| 49 case COMPOSITABLE_IMAGE: | |
| 50 mImageHost = aHost; | |
| 51 return true; | |
| 52 default: | |
| 53 return false; | |
| 54 } | |
| 55 | |
| 56 } | |
| 57 | |
| 58 Layer* | |
| 59 CanvasLayerComposite::GetLayer() | |
| 60 { | |
| 61 return this; | |
| 62 } | |
| 63 | |
| 64 LayerRenderState | |
| 65 CanvasLayerComposite::GetRenderState() | |
| 66 { | |
| 67 if (mDestroyed || !mImageHost || !mImageHost->IsAttached()) { | |
| 68 return LayerRenderState(); | |
| 69 } | |
| 70 return mImageHost->GetRenderState(); | |
| 71 } | |
| 72 | |
| 73 void | |
| 74 CanvasLayerComposite::RenderLayer(const nsIntRect& aClipRect) | |
| 75 { | |
| 76 if (!mImageHost || !mImageHost->IsAttached()) { | |
| 77 return; | |
| 78 } | |
| 79 | |
| 80 mCompositor->MakeCurrent(); | |
| 81 | |
| 82 #ifdef MOZ_DUMP_PAINTING | |
| 83 if (gfxUtils::sDumpPainting) { | |
| 84 RefPtr<gfx::DataSourceSurface> surf = mImageHost->GetAsSurface(); | |
| 85 WriteSnapshotToDumpFile(this, surf); | |
| 86 } | |
| 87 #endif | |
| 88 | |
| 89 GraphicsFilter filter = mFilter; | |
| 90 #ifdef ANDROID | |
| 91 // Bug 691354 | |
| 92 // Using the LINEAR filter we get unexplained artifacts. | |
| 93 // Use NEAREST when no scaling is required. | |
| 94 Matrix matrix; | |
| 95 bool is2D = GetEffectiveTransform().Is2D(&matrix); | |
| 96 if (is2D && !ThebesMatrix(matrix).HasNonTranslationOrFlip()) { | |
| 97 filter = GraphicsFilter::FILTER_NEAREST; | |
| 98 } | |
| 99 #endif | |
| 100 | |
| 101 EffectChain effectChain(this); | |
| 102 | |
| 103 LayerManagerComposite::AutoAddMaskEffect autoMaskEffect(mMaskLayer, effectChain); | |
| 104 gfx::Rect clipRect(aClipRect.x, aClipRect.y, aClipRect.width, aClipRect.height); | |
| 105 | |
| 106 mImageHost->Composite(effectChain, | |
| 107 GetEffectiveOpacity(), | |
| 108 GetEffectiveTransform(), | |
| 109 gfx::ToFilter(filter), | |
| 110 clipRect); | |
| 111 mImageHost->BumpFlashCounter(); | |
| 112 } | |
| 113 | |
| 114 CompositableHost* | |
| 115 CanvasLayerComposite::GetCompositableHost() | |
| 116 { | |
| 117 if ( mImageHost && mImageHost->IsAttached()) { | |
| 118 return mImageHost.get(); | |
| 119 } | |
| 120 | |
| 121 return nullptr; | |
| 122 } | |
| 123 | |
| 124 void | |
| 125 CanvasLayerComposite::CleanupResources() | |
| 126 { | |
| 127 if (mImageHost) { | |
| 128 mImageHost->Detach(this); | |
| 129 } | |
| 130 mImageHost = nullptr; | |
| 131 } | |
| 132 | |
| 133 nsACString& | |
| 134 CanvasLayerComposite::PrintInfo(nsACString& aTo, const char* aPrefix) | |
| 135 { | |
| 136 CanvasLayer::PrintInfo(aTo, aPrefix); | |
| 137 aTo += "\n"; | |
| 138 if (mImageHost && mImageHost->IsAttached()) { | |
| 139 nsAutoCString pfx(aPrefix); | |
| 140 pfx += " "; | |
| 141 mImageHost->PrintInfo(aTo, pfx.get()); | |
| 142 } | |
| 143 return aTo; | |
| 144 } | |
| 145 |
