| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_GRAPHIC_BUFFER_H |
| #define ANDROID_GRAPHIC_BUFFER_H |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| #include <ui/ANativeObjectBase.h> |
| #include <ui/PixelFormat.h> |
| #include <ui/Rect.h> |
| #include <utils/Flattenable.h> |
| #include <utils/RefBase.h> |
| |
| #include <string> |
| |
| struct ANativeWindowBuffer; |
| |
| namespace android { |
| |
| class GraphicBufferMapper; |
| |
| // =========================================================================== |
| // GraphicBuffer |
| // =========================================================================== |
| |
| class GraphicBuffer |
| : public ANativeObjectBase< ANativeWindowBuffer, GraphicBuffer, RefBase >, |
| public Flattenable<GraphicBuffer> |
| { |
| friend class Flattenable<GraphicBuffer>; |
| public: |
| |
| enum { |
| USAGE_SW_READ_NEVER = GRALLOC_USAGE_SW_READ_NEVER, |
| USAGE_SW_READ_RARELY = GRALLOC_USAGE_SW_READ_RARELY, |
| USAGE_SW_READ_OFTEN = GRALLOC_USAGE_SW_READ_OFTEN, |
| USAGE_SW_READ_MASK = GRALLOC_USAGE_SW_READ_MASK, |
| |
| USAGE_SW_WRITE_NEVER = GRALLOC_USAGE_SW_WRITE_NEVER, |
| USAGE_SW_WRITE_RARELY = GRALLOC_USAGE_SW_WRITE_RARELY, |
| USAGE_SW_WRITE_OFTEN = GRALLOC_USAGE_SW_WRITE_OFTEN, |
| USAGE_SW_WRITE_MASK = GRALLOC_USAGE_SW_WRITE_MASK, |
| |
| USAGE_SOFTWARE_MASK = USAGE_SW_READ_MASK|USAGE_SW_WRITE_MASK, |
| |
| USAGE_PROTECTED = GRALLOC_USAGE_PROTECTED, |
| |
| USAGE_HW_TEXTURE = GRALLOC_USAGE_HW_TEXTURE, |
| USAGE_HW_RENDER = GRALLOC_USAGE_HW_RENDER, |
| USAGE_HW_2D = GRALLOC_USAGE_HW_2D, |
| USAGE_HW_COMPOSER = GRALLOC_USAGE_HW_COMPOSER, |
| USAGE_HW_VIDEO_ENCODER = GRALLOC_USAGE_HW_VIDEO_ENCODER, |
| USAGE_HW_MASK = GRALLOC_USAGE_HW_MASK, |
| |
| USAGE_CURSOR = GRALLOC_USAGE_CURSOR, |
| }; |
| |
| GraphicBuffer(); |
| |
| // creates w * h buffer |
| GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat, |
| uint32_t inUsage, std::string requestorName = "<Unknown>"); |
| |
| // create a buffer from an existing handle |
| GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat, |
| uint32_t inUsage, uint32_t inStride, native_handle_t* inHandle, |
| bool keepOwnership); |
| |
| // create a buffer from an existing ANativeWindowBuffer |
| GraphicBuffer(ANativeWindowBuffer* buffer, bool keepOwnership); |
| |
| // return status |
| status_t initCheck() const; |
| |
| uint32_t getWidth() const { return static_cast<uint32_t>(width); } |
| uint32_t getHeight() const { return static_cast<uint32_t>(height); } |
| uint32_t getStride() const { return static_cast<uint32_t>(stride); } |
| uint32_t getUsage() const { return static_cast<uint32_t>(usage); } |
| PixelFormat getPixelFormat() const { return format; } |
| Rect getBounds() const { return Rect(width, height); } |
| uint64_t getId() const { return mId; } |
| |
| uint32_t getGenerationNumber() const { return mGenerationNumber; } |
| void setGenerationNumber(uint32_t generation) { |
| mGenerationNumber = generation; |
| } |
| |
| status_t reallocate(uint32_t inWidth, uint32_t inHeight, |
| PixelFormat inFormat, uint32_t inUsage); |
| |
| bool needsReallocation(uint32_t inWidth, uint32_t inHeight, |
| PixelFormat inFormat, uint32_t inUsage); |
| |
| status_t lock(uint32_t inUsage, void** vaddr); |
| status_t lock(uint32_t inUsage, const Rect& rect, void** vaddr); |
| // For HAL_PIXEL_FORMAT_YCbCr_420_888 |
| status_t lockYCbCr(uint32_t inUsage, android_ycbcr *ycbcr); |
| status_t lockYCbCr(uint32_t inUsage, const Rect& rect, |
| android_ycbcr *ycbcr); |
| status_t unlock(); |
| status_t lockAsync(uint32_t inUsage, void** vaddr, int fenceFd); |
| status_t lockAsync(uint32_t inUsage, const Rect& rect, void** vaddr, |
| int fenceFd); |
| status_t lockAsyncYCbCr(uint32_t inUsage, android_ycbcr *ycbcr, |
| int fenceFd); |
| status_t lockAsyncYCbCr(uint32_t inUsage, const Rect& rect, |
| android_ycbcr *ycbcr, int fenceFd); |
| status_t unlockAsync(int *fenceFd); |
| |
| ANativeWindowBuffer* getNativeBuffer() const; |
| |
| // for debugging |
| static void dumpAllocationsToSystemLog(); |
| |
| // Flattenable protocol |
| size_t getFlattenedSize() const; |
| size_t getFdCount() const; |
| status_t flatten(void*& buffer, size_t& size, int*& fds, size_t& count) const; |
| status_t unflatten(void const*& buffer, size_t& size, int const*& fds, size_t& count); |
| |
| private: |
| ~GraphicBuffer(); |
| |
| enum { |
| ownNone = 0, |
| ownHandle = 1, |
| ownData = 2, |
| }; |
| |
| inline const GraphicBufferMapper& getBufferMapper() const { |
| return mBufferMapper; |
| } |
| inline GraphicBufferMapper& getBufferMapper() { |
| return mBufferMapper; |
| } |
| uint8_t mOwner; |
| |
| private: |
| friend class Surface; |
| friend class BpSurface; |
| friend class BnSurface; |
| friend class LightRefBase<GraphicBuffer>; |
| GraphicBuffer(const GraphicBuffer& rhs); |
| GraphicBuffer& operator = (const GraphicBuffer& rhs); |
| const GraphicBuffer& operator = (const GraphicBuffer& rhs) const; |
| |
| status_t initSize(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat, |
| uint32_t inUsage, std::string requestorName); |
| |
| void free_handle(); |
| |
| GraphicBufferMapper& mBufferMapper; |
| ssize_t mInitCheck; |
| |
| // If we're wrapping another buffer then this reference will make sure it |
| // doesn't get freed. |
| sp<ANativeWindowBuffer> mWrappedBuffer; |
| |
| uint64_t mId; |
| |
| // Stores the generation number of this buffer. If this number does not |
| // match the BufferQueue's internal generation number (set through |
| // IGBP::setGenerationNumber), attempts to attach the buffer will fail. |
| uint32_t mGenerationNumber; |
| }; |
| |
| }; // namespace android |
| |
| #endif // ANDROID_GRAPHIC_BUFFER_H |