The Tor Browser / file comparison
comparison: gfx/layers/composite/ImageLayerComposite.cpp
gfx/layers/composite/ImageLayerComposite.cpp
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:2142c6398663 |
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| 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 "ImageLayerComposite.h" | |
| 7 #include "CompositableHost.h" // for CompositableHost | |
| 8 #include "Layers.h" // for WriteSnapshotToDumpFile, etc | |
| 9 #include "gfx2DGlue.h" // for ToFilter, ToMatrix4x4 | |
| 10 #include "gfxRect.h" // for gfxRect | |
| 11 #include "gfxUtils.h" // for gfxUtils, etc | |
| 12 #include "mozilla/Assertions.h" // for MOZ_ASSERT, etc | |
| 13 #include "mozilla/gfx/Matrix.h" // for Matrix4x4 | |
| 14 #include "mozilla/gfx/Point.h" // for IntSize, Point | |
| 15 #include "mozilla/gfx/Rect.h" // for Rect | |
| 16 #include "mozilla/layers/Compositor.h" // for Compositor | |
| 17 #include "mozilla/layers/Effects.h" // for EffectChain | |
| 18 #include "mozilla/layers/TextureHost.h" // for TextureHost, etc | |
| 19 #include "mozilla/mozalloc.h" // for operator delete | |
| 20 #include "nsAString.h" | |
| 21 #include "nsAutoPtr.h" // for nsRefPtr | |
| 22 #include "nsDebug.h" // for NS_ASSERTION | |
| 23 #include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc | |
| 24 #include "nsPoint.h" // for nsIntPoint | |
| 25 #include "nsRect.h" // for nsIntRect | |
| 26 #include "nsString.h" // for nsAutoCString | |
| 27 | |
| 28 using namespace mozilla::gfx; | |
| 29 | |
| 30 namespace mozilla { | |
| 31 namespace layers { | |
| 32 | |
| 33 ImageLayerComposite::ImageLayerComposite(LayerManagerComposite* aManager) | |
| 34 : ImageLayer(aManager, nullptr) | |
| 35 , LayerComposite(aManager) | |
| 36 , mImageHost(nullptr) | |
| 37 { | |
| 38 MOZ_COUNT_CTOR(ImageLayerComposite); | |
| 39 mImplData = static_cast<LayerComposite*>(this); | |
| 40 } | |
| 41 | |
| 42 ImageLayerComposite::~ImageLayerComposite() | |
| 43 { | |
| 44 MOZ_COUNT_DTOR(ImageLayerComposite); | |
| 45 MOZ_ASSERT(mDestroyed); | |
| 46 | |
| 47 CleanupResources(); | |
| 48 } | |
| 49 | |
| 50 bool | |
| 51 ImageLayerComposite::SetCompositableHost(CompositableHost* aHost) | |
| 52 { | |
| 53 switch (aHost->GetType()) { | |
| 54 case BUFFER_IMAGE_SINGLE: | |
| 55 case BUFFER_IMAGE_BUFFERED: | |
| 56 case COMPOSITABLE_IMAGE: | |
| 57 mImageHost = aHost; | |
| 58 return true; | |
| 59 default: | |
| 60 return false; | |
| 61 } | |
| 62 } | |
| 63 | |
| 64 void | |
| 65 ImageLayerComposite::Disconnect() | |
| 66 { | |
| 67 Destroy(); | |
| 68 } | |
| 69 | |
| 70 LayerRenderState | |
| 71 ImageLayerComposite::GetRenderState() | |
| 72 { | |
| 73 if (mImageHost && mImageHost->IsAttached()) { | |
| 74 return mImageHost->GetRenderState(); | |
| 75 } | |
| 76 return LayerRenderState(); | |
| 77 } | |
| 78 | |
| 79 Layer* | |
| 80 ImageLayerComposite::GetLayer() | |
| 81 { | |
| 82 return this; | |
| 83 } | |
| 84 | |
| 85 void | |
| 86 ImageLayerComposite::RenderLayer(const nsIntRect& aClipRect) | |
| 87 { | |
| 88 if (!mImageHost || !mImageHost->IsAttached()) { | |
| 89 return; | |
| 90 } | |
| 91 | |
| 92 #ifdef MOZ_DUMP_PAINTING | |
| 93 if (gfxUtils::sDumpPainting) { | |
| 94 RefPtr<gfx::DataSourceSurface> surf = mImageHost->GetAsSurface(); | |
| 95 WriteSnapshotToDumpFile(this, surf); | |
| 96 } | |
| 97 #endif | |
| 98 | |
| 99 mCompositor->MakeCurrent(); | |
| 100 | |
| 101 EffectChain effectChain(this); | |
| 102 LayerManagerComposite::AutoAddMaskEffect autoMaskEffect(mMaskLayer, effectChain); | |
| 103 | |
| 104 gfx::Rect clipRect(aClipRect.x, aClipRect.y, aClipRect.width, aClipRect.height); | |
| 105 mImageHost->SetCompositor(mCompositor); | |
| 106 mImageHost->Composite(effectChain, | |
| 107 GetEffectiveOpacity(), | |
| 108 GetEffectiveTransform(), | |
| 109 gfx::ToFilter(mFilter), | |
| 110 clipRect); | |
| 111 mImageHost->BumpFlashCounter(); | |
| 112 } | |
| 113 | |
| 114 void | |
| 115 ImageLayerComposite::ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface) | |
| 116 { | |
| 117 gfx::Matrix4x4 local = GetLocalTransform(); | |
| 118 | |
| 119 // Snap image edges to pixel boundaries | |
| 120 gfxRect sourceRect(0, 0, 0, 0); | |
| 121 if (mImageHost && | |
| 122 mImageHost->IsAttached() && | |
| 123 mImageHost->GetAsTextureHost()) { | |
| 124 IntSize size = mImageHost->GetAsTextureHost()->GetSize(); | |
| 125 sourceRect.SizeTo(size.width, size.height); | |
| 126 if (mScaleMode != ScaleMode::SCALE_NONE && | |
| 127 sourceRect.width != 0.0 && sourceRect.height != 0.0) { | |
| 128 NS_ASSERTION(mScaleMode == ScaleMode::STRETCH, | |
| 129 "No other scalemodes than stretch and none supported yet."); | |
| 130 local.Scale(mScaleToSize.width / sourceRect.width, | |
| 131 mScaleToSize.height / sourceRect.height, 1.0); | |
| 132 } | |
| 133 } | |
| 134 // Snap our local transform first, and snap the inherited transform as well. | |
| 135 // This makes our snapping equivalent to what would happen if our content | |
| 136 // was drawn into a ThebesLayer (gfxContext would snap using the local | |
| 137 // transform, then we'd snap again when compositing the ThebesLayer). | |
| 138 mEffectiveTransform = | |
| 139 SnapTransform(local, sourceRect, nullptr) * | |
| 140 SnapTransformTranslation(aTransformToSurface, nullptr); | |
| 141 ComputeEffectiveTransformForMaskLayer(aTransformToSurface); | |
| 142 } | |
| 143 | |
| 144 CompositableHost* | |
| 145 ImageLayerComposite::GetCompositableHost() | |
| 146 { | |
| 147 if (mImageHost && mImageHost->IsAttached()) { | |
| 148 return mImageHost.get(); | |
| 149 } | |
| 150 | |
| 151 return nullptr; | |
| 152 } | |
| 153 | |
| 154 void | |
| 155 ImageLayerComposite::CleanupResources() | |
| 156 { | |
| 157 if (mImageHost) { | |
| 158 mImageHost->Detach(this); | |
| 159 } | |
| 160 mImageHost = nullptr; | |
| 161 } | |
| 162 | |
| 163 nsACString& | |
| 164 ImageLayerComposite::PrintInfo(nsACString& aTo, const char* aPrefix) | |
| 165 { | |
| 166 ImageLayer::PrintInfo(aTo, aPrefix); | |
| 167 aTo += "\n"; | |
| 168 if (mImageHost && mImageHost->IsAttached()) { | |
| 169 nsAutoCString pfx(aPrefix); | |
| 170 pfx += " "; | |
| 171 mImageHost->PrintInfo(aTo, pfx.get()); | |
| 172 } | |
| 173 return aTo; | |
| 174 } | |
| 175 | |
| 176 } /* layers */ | |
| 177 } /* mozilla */ |
