The Tor Browser / file comparison
comparison: gfx/layers/client/ClientTiledThebesLayer.h
gfx/layers/client/ClientTiledThebesLayer.h
- changeset 0
- 6474c204b198
equal
deleted
inserted
replaced
| -1:000000000000 | 0:bc5e72bbf902 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #ifndef GFX_CLIENTTILEDTHEBESLAYER_H | |
| 6 #define GFX_CLIENTTILEDTHEBESLAYER_H | |
| 7 | |
| 8 #include "ClientLayerManager.h" // for ClientLayer, etc | |
| 9 #include "Layers.h" // for ThebesLayer, etc | |
| 10 #include "mozilla/RefPtr.h" // for RefPtr | |
| 11 #include "mozilla/layers/TiledContentClient.h" | |
| 12 #include "nsDebug.h" // for NS_RUNTIMEABORT | |
| 13 #include "nsRegion.h" // for nsIntRegion | |
| 14 | |
| 15 class gfxContext; | |
| 16 | |
| 17 namespace mozilla { | |
| 18 namespace layers { | |
| 19 | |
| 20 class ShadowableLayer; | |
| 21 class SpecificLayerAttributes; | |
| 22 | |
| 23 /** | |
| 24 * An implementation of ThebesLayer that ONLY supports remote | |
| 25 * composition that is backed by tiles. This thebes layer implementation | |
| 26 * is better suited to mobile hardware to work around slow implementation | |
| 27 * of glTexImage2D (for OGL compositors), and restrait memory bandwidth. | |
| 28 * | |
| 29 * Tiled Thebes layers use a different protocol compared with other | |
| 30 * layers. A copy of the tiled buffer is made and sent to the compositing | |
| 31 * thread via the layers protocol. Tiles are uploaded by the buffers | |
| 32 * asynchonously without using IPC, that means they are not safe for cross- | |
| 33 * process use (bug 747811). Each tile has a TextureHost/Client pair but | |
| 34 * they communicate directly rather than using the Texture protocol. | |
| 35 * | |
| 36 * There is no ContentClient for tiled layers. There is a ContentHost, however. | |
| 37 */ | |
| 38 class ClientTiledThebesLayer : public ThebesLayer, | |
| 39 public ClientLayer | |
| 40 { | |
| 41 typedef ThebesLayer Base; | |
| 42 | |
| 43 public: | |
| 44 ClientTiledThebesLayer(ClientLayerManager* const aManager); | |
| 45 ~ClientTiledThebesLayer(); | |
| 46 | |
| 47 // Override name to distinguish it from ClientThebesLayer in layer dumps | |
| 48 virtual const char* Name() const { return "TiledThebesLayer"; } | |
| 49 | |
| 50 // Thebes Layer | |
| 51 virtual Layer* AsLayer() { return this; } | |
| 52 virtual void InvalidateRegion(const nsIntRegion& aRegion) { | |
| 53 mInvalidRegion.Or(mInvalidRegion, aRegion); | |
| 54 mValidRegion.Sub(mValidRegion, aRegion); | |
| 55 mLowPrecisionValidRegion.Sub(mLowPrecisionValidRegion, aRegion); | |
| 56 } | |
| 57 | |
| 58 // Shadow methods | |
| 59 virtual void FillSpecificAttributes(SpecificLayerAttributes& aAttrs); | |
| 60 virtual ShadowableLayer* AsShadowableLayer() { return this; } | |
| 61 | |
| 62 virtual void Disconnect() | |
| 63 { | |
| 64 ClientLayer::Disconnect(); | |
| 65 } | |
| 66 | |
| 67 virtual void RenderLayer(); | |
| 68 | |
| 69 virtual void ClearCachedResources() MOZ_OVERRIDE; | |
| 70 | |
| 71 private: | |
| 72 ClientLayerManager* ClientManager() | |
| 73 { | |
| 74 return static_cast<ClientLayerManager*>(mManager); | |
| 75 } | |
| 76 | |
| 77 /** | |
| 78 * For the initial PaintThebes of a transaction, calculates all the data | |
| 79 * needed for that paint and any repeated transactions. | |
| 80 */ | |
| 81 void BeginPaint(); | |
| 82 | |
| 83 /** | |
| 84 * When a paint ends, updates any data necessary to persist until the next | |
| 85 * paint. If aFinish is true, this will cause the paint to be marked as | |
| 86 * finished. | |
| 87 */ | |
| 88 void EndPaint(bool aFinish); | |
| 89 | |
| 90 RefPtr<TiledContentClient> mContentClient; | |
| 91 nsIntRegion mLowPrecisionValidRegion; | |
| 92 BasicTiledLayerPaintData mPaintData; | |
| 93 }; | |
| 94 | |
| 95 } // layers | |
| 96 } // mozilla | |
| 97 | |
| 98 #endif |
