160 lines
4.9 KiB
C++
160 lines
4.9 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_GRAPHIC_BUFFER_H
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#define ANDROID_GRAPHIC_BUFFER_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <ui/android_native_buffer.h>
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#include <ui/PixelFormat.h>
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#include <ui/Rect.h>
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#include <utils/Flattenable.h>
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#include <pixelflinger/pixelflinger.h>
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#include <hardware/hardware.h>
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struct android_native_buffer_t;
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namespace android {
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class GraphicBufferMapper;
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// ===========================================================================
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// GraphicBuffer
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// ===========================================================================
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class GraphicBuffer
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: public EGLNativeBase<
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android_native_buffer_t,
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GraphicBuffer,
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LightRefBase<GraphicBuffer> >, public Flattenable
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{
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public:
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enum {
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USAGE_SW_READ_NEVER = GRALLOC_USAGE_SW_READ_NEVER,
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USAGE_SW_READ_RARELY = GRALLOC_USAGE_SW_READ_RARELY,
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USAGE_SW_READ_OFTEN = GRALLOC_USAGE_SW_READ_OFTEN,
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USAGE_SW_READ_MASK = GRALLOC_USAGE_SW_READ_MASK,
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USAGE_SW_WRITE_NEVER = GRALLOC_USAGE_SW_WRITE_NEVER,
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USAGE_SW_WRITE_RARELY = GRALLOC_USAGE_SW_WRITE_RARELY,
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USAGE_SW_WRITE_OFTEN = GRALLOC_USAGE_SW_WRITE_OFTEN,
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USAGE_SW_WRITE_MASK = GRALLOC_USAGE_SW_WRITE_MASK,
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USAGE_SOFTWARE_MASK = USAGE_SW_READ_MASK|USAGE_SW_WRITE_MASK,
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USAGE_HW_TEXTURE = GRALLOC_USAGE_HW_TEXTURE,
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USAGE_HW_RENDER = GRALLOC_USAGE_HW_RENDER,
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USAGE_HW_2D = GRALLOC_USAGE_HW_2D,
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USAGE_HW_MASK = GRALLOC_USAGE_HW_MASK
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};
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enum {
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TRANSFORM_IDENTITY = 0,
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TRANSFORM_ROT_90 = HAL_TRANSFORM_ROT_90,
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TRANSFORM_ROT_180 = HAL_TRANSFORM_ROT_180,
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TRANSFORM_ROT_270 = HAL_TRANSFORM_ROT_270
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};
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GraphicBuffer();
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GraphicBuffer(android_native_buffer_t*, bool);
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// creates w * h buffer
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GraphicBuffer(uint32_t w, uint32_t h, PixelFormat format, uint32_t usage);
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// create a buffer from an existing handle
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GraphicBuffer(uint32_t w, uint32_t h, PixelFormat format, uint32_t usage,
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uint32_t stride, native_handle_t* handle, bool keepOwnership);
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// return status
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status_t initCheck() const;
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uint32_t getWidth() const { return width; }
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uint32_t getHeight() const { return height; }
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uint32_t getStride() const { return stride; }
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uint32_t getUsage() const { return usage; }
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uint32_t getTransform() const { return transform; }
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PixelFormat getPixelFormat() const { return format; }
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Rect getBounds() const { return Rect(width, height); }
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status_t reallocate(uint32_t w, uint32_t h, PixelFormat f, uint32_t usage);
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status_t lock(uint32_t usage, void** vaddr);
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status_t lock(uint32_t usage, const Rect& rect, void** vaddr);
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status_t lock(GGLSurface* surface, uint32_t usage);
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status_t unlock();
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android_native_buffer_t* getNativeBuffer() const;
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void setIndex(int index);
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int getIndex() const;
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// for debugging
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static void dumpAllocationsToSystemLog();
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private:
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virtual ~GraphicBuffer();
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enum {
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ownNone = 0,
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ownHandle = 1,
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ownData = 2,
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};
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inline const GraphicBufferMapper& getBufferMapper() const {
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return mBufferMapper;
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}
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inline GraphicBufferMapper& getBufferMapper() {
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return mBufferMapper;
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}
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uint8_t mOwner;
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private:
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friend class Surface;
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friend class BpSurface;
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friend class BnSurface;
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friend class LightRefBase<GraphicBuffer>;
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GraphicBuffer(const GraphicBuffer& rhs);
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GraphicBuffer& operator = (const GraphicBuffer& rhs);
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const GraphicBuffer& operator = (const GraphicBuffer& rhs) const;
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status_t initSize(uint32_t w, uint32_t h, PixelFormat format,
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uint32_t usage);
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void free_handle();
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// Flattenable interface
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size_t getFlattenedSize() const;
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size_t getFdCount() const;
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status_t flatten(void* buffer, size_t size,
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int fds[], size_t count) const;
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status_t unflatten(void const* buffer, size_t size,
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int fds[], size_t count);
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GraphicBufferMapper& mBufferMapper;
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ssize_t mInitCheck;
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int mIndex;
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};
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}; // namespace android
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#endif // ANDROID_GRAPHIC_BUFFER_H
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