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comparison: gfx/layers/basic/BasicThebesLayer.h
gfx/layers/basic/BasicThebesLayer.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:df8ec130c8b8 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; 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 #ifndef GFX_BASICTHEBESLAYER_H | |
| 7 #define GFX_BASICTHEBESLAYER_H | |
| 8 | |
| 9 #include "Layers.h" // for ThebesLayer, LayerManager, etc | |
| 10 #include "RotatedBuffer.h" // for RotatedContentBuffer, etc | |
| 11 #include "BasicImplData.h" // for BasicImplData | |
| 12 #include "BasicLayers.h" // for BasicLayerManager | |
| 13 #include "gfxPoint.h" // for gfxPoint | |
| 14 #include "mozilla/RefPtr.h" // for RefPtr | |
| 15 #include "mozilla/gfx/BasePoint.h" // for BasePoint | |
| 16 #include "mozilla/layers/ContentClient.h" // for ContentClientBasic | |
| 17 #include "mozilla/mozalloc.h" // for operator delete | |
| 18 #include "nsDebug.h" // for NS_ASSERTION | |
| 19 #include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc | |
| 20 #include "nsRegion.h" // for nsIntRegion | |
| 21 class gfxContext; | |
| 22 | |
| 23 namespace mozilla { | |
| 24 namespace layers { | |
| 25 | |
| 26 class ReadbackProcessor; | |
| 27 | |
| 28 class BasicThebesLayer : public ThebesLayer, public BasicImplData { | |
| 29 public: | |
| 30 typedef RotatedContentBuffer::PaintState PaintState; | |
| 31 typedef RotatedContentBuffer::ContentType ContentType; | |
| 32 | |
| 33 BasicThebesLayer(BasicLayerManager* aLayerManager) : | |
| 34 ThebesLayer(aLayerManager, | |
| 35 static_cast<BasicImplData*>(MOZ_THIS_IN_INITIALIZER_LIST())), | |
| 36 mContentClient(nullptr) | |
| 37 { | |
| 38 MOZ_COUNT_CTOR(BasicThebesLayer); | |
| 39 } | |
| 40 virtual ~BasicThebesLayer() | |
| 41 { | |
| 42 MOZ_COUNT_DTOR(BasicThebesLayer); | |
| 43 } | |
| 44 | |
| 45 virtual void SetVisibleRegion(const nsIntRegion& aRegion) | |
| 46 { | |
| 47 NS_ASSERTION(BasicManager()->InConstruction(), | |
| 48 "Can only set properties in construction phase"); | |
| 49 ThebesLayer::SetVisibleRegion(aRegion); | |
| 50 } | |
| 51 virtual void InvalidateRegion(const nsIntRegion& aRegion) | |
| 52 { | |
| 53 NS_ASSERTION(BasicManager()->InConstruction(), | |
| 54 "Can only set properties in construction phase"); | |
| 55 mInvalidRegion.Or(mInvalidRegion, aRegion); | |
| 56 mInvalidRegion.SimplifyOutward(20); | |
| 57 mValidRegion.Sub(mValidRegion, mInvalidRegion); | |
| 58 } | |
| 59 | |
| 60 virtual void PaintThebes(gfxContext* aContext, | |
| 61 Layer* aMaskLayer, | |
| 62 LayerManager::DrawThebesLayerCallback aCallback, | |
| 63 void* aCallbackData, | |
| 64 ReadbackProcessor* aReadback); | |
| 65 | |
| 66 virtual void Validate(LayerManager::DrawThebesLayerCallback aCallback, | |
| 67 void* aCallbackData) MOZ_OVERRIDE; | |
| 68 | |
| 69 virtual void ClearCachedResources() | |
| 70 { | |
| 71 if (mContentClient) { | |
| 72 mContentClient->Clear(); | |
| 73 } | |
| 74 mValidRegion.SetEmpty(); | |
| 75 } | |
| 76 | |
| 77 virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface) | |
| 78 { | |
| 79 if (!BasicManager()->IsRetained()) { | |
| 80 // Don't do any snapping of our transform, since we're just going to | |
| 81 // draw straight through without intermediate buffers. | |
| 82 mEffectiveTransform = GetLocalTransform() * aTransformToSurface; | |
| 83 if (gfxPoint(0,0) != mResidualTranslation) { | |
| 84 mResidualTranslation = gfxPoint(0,0); | |
| 85 mValidRegion.SetEmpty(); | |
| 86 } | |
| 87 ComputeEffectiveTransformForMaskLayer(aTransformToSurface); | |
| 88 return; | |
| 89 } | |
| 90 ThebesLayer::ComputeEffectiveTransforms(aTransformToSurface); | |
| 91 } | |
| 92 | |
| 93 BasicLayerManager* BasicManager() | |
| 94 { | |
| 95 return static_cast<BasicLayerManager*>(mManager); | |
| 96 } | |
| 97 | |
| 98 protected: | |
| 99 virtual void | |
| 100 PaintBuffer(gfxContext* aContext, | |
| 101 const nsIntRegion& aRegionToDraw, | |
| 102 const nsIntRegion& aExtendedRegionToDraw, | |
| 103 const nsIntRegion& aRegionToInvalidate, | |
| 104 bool aDidSelfCopy, | |
| 105 DrawRegionClip aClip, | |
| 106 LayerManager::DrawThebesLayerCallback aCallback, | |
| 107 void* aCallbackData) | |
| 108 { | |
| 109 if (!aCallback) { | |
| 110 BasicManager()->SetTransactionIncomplete(); | |
| 111 return; | |
| 112 } | |
| 113 aCallback(this, aContext, aExtendedRegionToDraw, aClip, | |
| 114 aRegionToInvalidate, aCallbackData); | |
| 115 // Everything that's visible has been validated. Do this instead of just | |
| 116 // OR-ing with aRegionToDraw, since that can lead to a very complex region | |
| 117 // here (OR doesn't automatically simplify to the simplest possible | |
| 118 // representation of a region.) | |
| 119 nsIntRegion tmp; | |
| 120 tmp.Or(mVisibleRegion, aExtendedRegionToDraw); | |
| 121 mValidRegion.Or(mValidRegion, tmp); | |
| 122 } | |
| 123 | |
| 124 RefPtr<ContentClientBasic> mContentClient; | |
| 125 }; | |
| 126 | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 #endif |
