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Diffstat (limited to 'mtk/libshims/ui/GraphicBuffer.h')
| -rw-r--r-- | mtk/libshims/ui/GraphicBuffer.h | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/mtk/libshims/ui/GraphicBuffer.h b/mtk/libshims/ui/GraphicBuffer.h new file mode 100644 index 0000000..427ca25 --- /dev/null +++ b/mtk/libshims/ui/GraphicBuffer.h @@ -0,0 +1,186 @@ +/* + * 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); + GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat, + uint32_t inUsage, std::string requestorName); + + // 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
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