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/*
* Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __HWC_BUFFER_ALLOCATOR_H__
#define __HWC_BUFFER_ALLOCATOR_H__
#include <fcntl.h>
#include <sys/mman.h>
#include <android/hardware/graphics/allocator/2.0/IAllocator.h>
#include <android/hardware/graphics/allocator/3.0/IAllocator.h>
#include <android/hardware/graphics/mapper/2.1/IMapper.h>
#include <android/hardware/graphics/mapper/3.0/IMapper.h>
#include "gralloc_priv.h"
using IAllocatorV3 = android::hardware::graphics::allocator::V3_0::IAllocator;
using IAllocatorV2 = android::hardware::graphics::allocator::V2_0::IAllocator;
using IMapperV3 = android::hardware::graphics::mapper::V3_0::IMapper;
using IMapperV2 = android::hardware::graphics::mapper::V2_0::IMapper;
namespace sdm {
template <class Type>
inline Type ALIGN(Type x, Type align) {
return (x + align - 1) & ~(align - 1);
}
class HWCBufferAllocator : public BufferAllocator {
public:
DisplayError AllocateBuffer(BufferInfo *buffer_info);
DisplayError FreeBuffer(BufferInfo *buffer_info);
uint32_t GetBufferSize(BufferInfo *buffer_info);
void GetCustomWidthAndHeight(const private_handle_t *handle, int *width, int *height);
void GetAlignedWidthAndHeight(int width, int height, int format, uint32_t alloc_type,
int *aligned_width, int *aligned_height);
DisplayError GetAllocatedBufferInfo(const BufferConfig &buffer_config,
AllocatedBufferInfo *allocated_buffer_info);
DisplayError GetBufferLayout(const AllocatedBufferInfo &buf_info, uint32_t stride[4],
uint32_t offset[4], uint32_t *num_planes);
int SetBufferInfo(LayerBufferFormat format, int *target, uint64_t *flags);
DisplayError MapBuffer(const private_handle_t *handle, int acquire_fence);
DisplayError UnmapBuffer(const private_handle_t *handle, int *release_fence);
private:
DisplayError GetGrallocInstance();
android::sp<IMapperV2> mapper_V2_;
android::sp<IMapperV3> mapper_V3_;
android::sp<IAllocatorV2> allocator_V2_;
android::sp<IAllocatorV3> allocator_V3_;
};
} // namespace sdm
#endif // __HWC_BUFFER_ALLOCATOR_H__
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