| /* |
| * Copyright (c) 2015-2018, 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/mapper/2.1/IMapper.h> |
| #include "gralloc_priv.h" |
| |
| using android::hardware::graphics::allocator::V2_0::IAllocator; |
| using 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<IMapper> mapper_; |
| android::sp<IAllocator> allocator_; |
| }; |
| |
| } // namespace sdm |
| #endif // __HWC_BUFFER_ALLOCATOR_H__ |