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comparison: gfx/thebes/gfxReusableSharedImageSurfaceWrapper.h
gfx/thebes/gfxReusableSharedImageSurfaceWrapper.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:4f2e9edad563 |
|---|---|
| 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 GFXSHMCOWSURFACEWRAPPER | |
| 6 #define GFXSHMCOWSURFACEWRAPPER | |
| 7 | |
| 8 #include "gfxReusableSurfaceWrapper.h" | |
| 9 #include "mozilla/RefPtr.h" | |
| 10 | |
| 11 class gfxSharedImageSurface; | |
| 12 | |
| 13 namespace mozilla { | |
| 14 namespace ipc { | |
| 15 class Shmem; | |
| 16 } | |
| 17 namespace layers { | |
| 18 class ISurfaceAllocator; | |
| 19 } | |
| 20 } | |
| 21 | |
| 22 /** | |
| 23 * A cross-process capable implementation of gfxReusableSurfaceWrapper based | |
| 24 * on gfxSharedImageSurface. | |
| 25 */ | |
| 26 class gfxReusableSharedImageSurfaceWrapper : public gfxReusableSurfaceWrapper { | |
| 27 public: | |
| 28 gfxReusableSharedImageSurfaceWrapper(mozilla::layers::ISurfaceAllocator* aAllocator, | |
| 29 gfxSharedImageSurface* aSurface); | |
| 30 ~gfxReusableSharedImageSurfaceWrapper(); | |
| 31 | |
| 32 const unsigned char* GetReadOnlyData() const MOZ_OVERRIDE; | |
| 33 gfxImageFormat Format() MOZ_OVERRIDE; | |
| 34 gfxReusableSurfaceWrapper* GetWritable(gfxImageSurface** aSurface) MOZ_OVERRIDE; | |
| 35 void ReadLock() MOZ_OVERRIDE; | |
| 36 void ReadUnlock() MOZ_OVERRIDE; | |
| 37 | |
| 38 Type GetType() | |
| 39 { | |
| 40 return TYPE_SHARED_IMAGE; | |
| 41 } | |
| 42 | |
| 43 /** | |
| 44 * Returns the shared memory segment that backs the shared image surface. | |
| 45 */ | |
| 46 mozilla::ipc::Shmem& GetShmem(); | |
| 47 | |
| 48 /** | |
| 49 * Create a gfxReusableSurfaceWrapper from the shared memory segment of a | |
| 50 * gfxSharedImageSurface. A ReadLock must be held, which will be adopted by | |
| 51 * the returned gfxReusableSurfaceWrapper. | |
| 52 */ | |
| 53 static already_AddRefed<gfxReusableSharedImageSurfaceWrapper> | |
| 54 Open(mozilla::layers::ISurfaceAllocator* aAllocator, const mozilla::ipc::Shmem& aShmem); | |
| 55 | |
| 56 private: | |
| 57 mozilla::RefPtr<mozilla::layers::ISurfaceAllocator> mAllocator; | |
| 58 nsRefPtr<gfxSharedImageSurface> mSurface; | |
| 59 }; | |
| 60 | |
| 61 #endif // GFXSHMCOWSURFACEWRAPPER |
