The Tor Browser / file comparison
comparison: gfx/layers/CopyableCanvasLayer.h
gfx/layers/CopyableCanvasLayer.h
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:36e0cb67d36b |
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| 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_COPYABLECANVASLAYER_H | |
| 7 #define GFX_COPYABLECANVASLAYER_H | |
| 8 | |
| 9 #include <stdint.h> // for uint32_t | |
| 10 #include "GLContextTypes.h" // for GLContext | |
| 11 #include "Layers.h" // for CanvasLayer, etc | |
| 12 #include "gfxContext.h" // for gfxContext, etc | |
| 13 #include "gfxTypes.h" | |
| 14 #include "gfxPlatform.h" // for gfxImageFormat | |
| 15 #include "mozilla/Assertions.h" // for MOZ_ASSERT, etc | |
| 16 #include "mozilla/Preferences.h" // for Preferences | |
| 17 #include "mozilla/RefPtr.h" // for RefPtr | |
| 18 #include "mozilla/gfx/2D.h" // for DrawTarget | |
| 19 #include "mozilla/mozalloc.h" // for operator delete, etc | |
| 20 #include "nsAutoPtr.h" // for nsRefPtr | |
| 21 #include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc | |
| 22 | |
| 23 namespace mozilla { | |
| 24 | |
| 25 namespace gfx { | |
| 26 class SurfaceStream; | |
| 27 class SharedSurface; | |
| 28 class SurfaceFactory; | |
| 29 } | |
| 30 | |
| 31 namespace layers { | |
| 32 | |
| 33 class CanvasClientWebGL; | |
| 34 | |
| 35 /** | |
| 36 * A shared CanvasLayer implementation that supports copying | |
| 37 * its contents into a gfxASurface using UpdateSurface. | |
| 38 */ | |
| 39 class CopyableCanvasLayer : public CanvasLayer | |
| 40 { | |
| 41 public: | |
| 42 CopyableCanvasLayer(LayerManager* aLayerManager, void *aImplData); | |
| 43 virtual ~CopyableCanvasLayer(); | |
| 44 | |
| 45 virtual void Initialize(const Data& aData); | |
| 46 | |
| 47 virtual bool IsDataValid(const Data& aData); | |
| 48 | |
| 49 protected: | |
| 50 void UpdateTarget(gfx::DrawTarget* aDestTarget = nullptr); | |
| 51 | |
| 52 RefPtr<gfx::SourceSurface> mSurface; | |
| 53 nsRefPtr<mozilla::gl::GLContext> mGLContext; | |
| 54 mozilla::RefPtr<mozilla::gfx::DrawTarget> mDrawTarget; | |
| 55 | |
| 56 RefPtr<gfx::SurfaceStream> mStream; | |
| 57 | |
| 58 uint32_t mCanvasFramebuffer; | |
| 59 | |
| 60 bool mIsGLAlphaPremult; | |
| 61 bool mNeedsYFlip; | |
| 62 | |
| 63 RefPtr<gfx::DataSourceSurface> mCachedTempSurface; | |
| 64 gfx::IntSize mCachedSize; | |
| 65 gfx::SurfaceFormat mCachedFormat; | |
| 66 | |
| 67 gfx::DataSourceSurface* GetTempSurface(const gfx::IntSize& aSize, | |
| 68 const gfx::SurfaceFormat aFormat); | |
| 69 | |
| 70 void DiscardTempSurface(); | |
| 71 }; | |
| 72 | |
| 73 } | |
| 74 } | |
| 75 | |
| 76 #endif |
