The Tor Browser / file comparison
comparison: gfx/layers/composite/ThebesLayerComposite.cpp
gfx/layers/composite/ThebesLayerComposite.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:77f219e4388f |
|---|---|
| 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 "ThebesLayerComposite.h" | |
| 7 #include "CompositableHost.h" // for TiledLayerProperties, etc | |
| 8 #include "FrameMetrics.h" // for FrameMetrics | |
| 9 #include "Units.h" // for CSSRect, LayerPixel, etc | |
| 10 #include "gfx2DGlue.h" // for ToMatrix4x4 | |
| 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 Point | |
| 15 #include "mozilla/gfx/Rect.h" // for RoundedToInt, Rect | |
| 16 #include "mozilla/gfx/Types.h" // for Filter::Filter::LINEAR | |
| 17 #include "mozilla/layers/Compositor.h" // for Compositor | |
| 18 #include "mozilla/layers/ContentHost.h" // for ContentHost | |
| 19 #include "mozilla/layers/Effects.h" // for EffectChain | |
| 20 #include "mozilla/mozalloc.h" // for operator delete | |
| 21 #include "nsAString.h" | |
| 22 #include "nsAutoPtr.h" // for nsRefPtr | |
| 23 #include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc | |
| 24 #include "nsMathUtils.h" // for NS_lround | |
| 25 #include "nsPoint.h" // for nsIntPoint | |
| 26 #include "nsRect.h" // for nsIntRect | |
| 27 #include "nsSize.h" // for nsIntSize | |
| 28 #include "nsString.h" // for nsAutoCString | |
| 29 #include "TextRenderer.h" | |
| 30 #include "GeckoProfiler.h" | |
| 31 | |
| 32 namespace mozilla { | |
| 33 namespace layers { | |
| 34 | |
| 35 class TiledLayerComposer; | |
| 36 | |
| 37 ThebesLayerComposite::ThebesLayerComposite(LayerManagerComposite *aManager) | |
| 38 : ThebesLayer(aManager, nullptr) | |
| 39 , LayerComposite(aManager) | |
| 40 , mBuffer(nullptr) | |
| 41 , mRequiresTiledProperties(false) | |
| 42 { | |
| 43 MOZ_COUNT_CTOR(ThebesLayerComposite); | |
| 44 mImplData = static_cast<LayerComposite*>(this); | |
| 45 } | |
| 46 | |
| 47 ThebesLayerComposite::~ThebesLayerComposite() | |
| 48 { | |
| 49 MOZ_COUNT_DTOR(ThebesLayerComposite); | |
| 50 CleanupResources(); | |
| 51 } | |
| 52 | |
| 53 bool | |
| 54 ThebesLayerComposite::SetCompositableHost(CompositableHost* aHost) | |
| 55 { | |
| 56 switch (aHost->GetType()) { | |
| 57 case BUFFER_CONTENT_INC: | |
| 58 case BUFFER_TILED: | |
| 59 case COMPOSITABLE_CONTENT_SINGLE: | |
| 60 case COMPOSITABLE_CONTENT_DOUBLE: | |
| 61 mBuffer = static_cast<ContentHost*>(aHost); | |
| 62 return true; | |
| 63 default: | |
| 64 return false; | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 void | |
| 69 ThebesLayerComposite::Disconnect() | |
| 70 { | |
| 71 Destroy(); | |
| 72 } | |
| 73 | |
| 74 void | |
| 75 ThebesLayerComposite::Destroy() | |
| 76 { | |
| 77 if (!mDestroyed) { | |
| 78 CleanupResources(); | |
| 79 mDestroyed = true; | |
| 80 } | |
| 81 } | |
| 82 | |
| 83 Layer* | |
| 84 ThebesLayerComposite::GetLayer() | |
| 85 { | |
| 86 return this; | |
| 87 } | |
| 88 | |
| 89 TiledLayerComposer* | |
| 90 ThebesLayerComposite::GetTiledLayerComposer() | |
| 91 { | |
| 92 if (!mBuffer) { | |
| 93 return nullptr; | |
| 94 } | |
| 95 MOZ_ASSERT(mBuffer->IsAttached()); | |
| 96 return mBuffer->AsTiledLayerComposer(); | |
| 97 } | |
| 98 | |
| 99 LayerRenderState | |
| 100 ThebesLayerComposite::GetRenderState() | |
| 101 { | |
| 102 if (!mBuffer || !mBuffer->IsAttached() || mDestroyed) { | |
| 103 return LayerRenderState(); | |
| 104 } | |
| 105 return mBuffer->GetRenderState(); | |
| 106 } | |
| 107 | |
| 108 void | |
| 109 ThebesLayerComposite::RenderLayer(const nsIntRect& aClipRect) | |
| 110 { | |
| 111 if (!mBuffer || !mBuffer->IsAttached()) { | |
| 112 return; | |
| 113 } | |
| 114 PROFILER_LABEL("ThebesLayerComposite", "RenderLayer"); | |
| 115 | |
| 116 MOZ_ASSERT(mBuffer->GetCompositor() == mCompositeManager->GetCompositor() && | |
| 117 mBuffer->GetLayer() == this, | |
| 118 "buffer is corrupted"); | |
| 119 | |
| 120 gfx::Rect clipRect(aClipRect.x, aClipRect.y, aClipRect.width, aClipRect.height); | |
| 121 | |
| 122 #ifdef MOZ_DUMP_PAINTING | |
| 123 if (gfxUtils::sDumpPainting) { | |
| 124 RefPtr<gfx::DataSourceSurface> surf = mBuffer->GetAsSurface(); | |
| 125 if (surf) { | |
| 126 WriteSnapshotToDumpFile(this, surf); | |
| 127 } | |
| 128 } | |
| 129 #endif | |
| 130 | |
| 131 EffectChain effectChain(this); | |
| 132 LayerManagerComposite::AutoAddMaskEffect autoMaskEffect(mMaskLayer, effectChain); | |
| 133 | |
| 134 nsIntRegion visibleRegion = GetEffectiveVisibleRegion(); | |
| 135 | |
| 136 TiledLayerProperties tiledLayerProps; | |
| 137 if (mRequiresTiledProperties) { | |
| 138 tiledLayerProps.mVisibleRegion = visibleRegion; | |
| 139 tiledLayerProps.mEffectiveResolution = GetEffectiveResolution(); | |
| 140 tiledLayerProps.mValidRegion = mValidRegion; | |
| 141 } | |
| 142 | |
| 143 mBuffer->SetPaintWillResample(MayResample()); | |
| 144 | |
| 145 mBuffer->Composite(effectChain, | |
| 146 GetEffectiveOpacity(), | |
| 147 GetEffectiveTransform(), | |
| 148 gfx::Filter::LINEAR, | |
| 149 clipRect, | |
| 150 &visibleRegion, | |
| 151 mRequiresTiledProperties ? &tiledLayerProps | |
| 152 : nullptr); | |
| 153 mBuffer->BumpFlashCounter(); | |
| 154 | |
| 155 if (mRequiresTiledProperties) { | |
| 156 mValidRegion = tiledLayerProps.mValidRegion; | |
| 157 } | |
| 158 | |
| 159 mCompositeManager->GetCompositor()->MakeCurrent(); | |
| 160 } | |
| 161 | |
| 162 CompositableHost* | |
| 163 ThebesLayerComposite::GetCompositableHost() | |
| 164 { | |
| 165 if (mBuffer && mBuffer->IsAttached()) { | |
| 166 return mBuffer.get(); | |
| 167 } | |
| 168 | |
| 169 return nullptr; | |
| 170 } | |
| 171 | |
| 172 void | |
| 173 ThebesLayerComposite::CleanupResources() | |
| 174 { | |
| 175 if (mBuffer) { | |
| 176 mBuffer->Detach(this); | |
| 177 } | |
| 178 mBuffer = nullptr; | |
| 179 } | |
| 180 | |
| 181 CSSToScreenScale | |
| 182 ThebesLayerComposite::GetEffectiveResolution() | |
| 183 { | |
| 184 for (ContainerLayer* parent = GetParent(); parent; parent = parent->GetParent()) { | |
| 185 const FrameMetrics& metrics = parent->GetFrameMetrics(); | |
| 186 if (metrics.GetScrollId() != FrameMetrics::NULL_SCROLL_ID) { | |
| 187 return metrics.GetZoom(); | |
| 188 } | |
| 189 } | |
| 190 | |
| 191 return CSSToScreenScale(1.0); | |
| 192 } | |
| 193 | |
| 194 nsACString& | |
| 195 ThebesLayerComposite::PrintInfo(nsACString& aTo, const char* aPrefix) | |
| 196 { | |
| 197 ThebesLayer::PrintInfo(aTo, aPrefix); | |
| 198 aTo += "\n"; | |
| 199 if (mBuffer && mBuffer->IsAttached()) { | |
| 200 nsAutoCString pfx(aPrefix); | |
| 201 pfx += " "; | |
| 202 mBuffer->PrintInfo(aTo, pfx.get()); | |
| 203 } | |
| 204 return aTo; | |
| 205 } | |
| 206 | |
| 207 } /* layers */ | |
| 208 } /* mozilla */ |
