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comparison: widget/android/AndroidDirectTexture.h
widget/android/AndroidDirectTexture.h
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- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
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| -1:000000000000 | 0:14ec6b6c450c |
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| 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 #ifndef AndroidDirectTexture_h_ | |
| 7 #define AndroidDirectTexture_h_ | |
| 8 | |
| 9 #include "gfxTypes.h" | |
| 10 #include "mozilla/Mutex.h" | |
| 11 #include "AndroidGraphicBuffer.h" | |
| 12 | |
| 13 struct nsIntRect; | |
| 14 | |
| 15 namespace mozilla { | |
| 16 | |
| 17 /** | |
| 18 * This is a thread safe wrapper around AndroidGraphicBuffer that handles | |
| 19 * double buffering. Each call to Bind() flips the buffer when necessary. | |
| 20 * | |
| 21 * You need to be careful when destroying an instance of this class. If either | |
| 22 * buffer is locked by the application of the driver/hardware, bad things will | |
| 23 * happen. Be sure that the OpenGL texture is no longer on the screen. | |
| 24 */ | |
| 25 class AndroidDirectTexture | |
| 26 { | |
| 27 public: | |
| 28 AndroidDirectTexture(uint32_t width, uint32_t height, uint32_t usage, gfxImageFormat format); | |
| 29 virtual ~AndroidDirectTexture(); | |
| 30 | |
| 31 bool Lock(uint32_t usage, unsigned char **bits); | |
| 32 bool Lock(uint32_t usage, const nsIntRect& rect, unsigned char **bits); | |
| 33 bool Unlock(bool aFlip = true); | |
| 34 | |
| 35 bool Reallocate(uint32_t aWidth, uint32_t aHeight); | |
| 36 bool Reallocate(uint32_t aWidth, uint32_t aHeight, gfxImageFormat aFormat); | |
| 37 | |
| 38 uint32_t Width() { return mWidth; } | |
| 39 uint32_t Height() { return mHeight; } | |
| 40 | |
| 41 bool Bind(); | |
| 42 | |
| 43 private: | |
| 44 mozilla::Mutex mLock; | |
| 45 bool mNeedFlip; | |
| 46 | |
| 47 uint32_t mWidth; | |
| 48 uint32_t mHeight; | |
| 49 gfxImageFormat mFormat; | |
| 50 | |
| 51 AndroidGraphicBuffer* mFrontBuffer; | |
| 52 AndroidGraphicBuffer* mBackBuffer; | |
| 53 | |
| 54 AndroidGraphicBuffer* mPendingReallocBuffer; | |
| 55 void ReallocPendingBuffer(); | |
| 56 }; | |
| 57 | |
| 58 } /* mozilla */ | |
| 59 #endif /* AndroidDirectTexture_h_ */ |
