1 /*
2 * Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above
10 * copyright notice, this list of conditions and the following
11 * disclaimer in the documentation and/or other materials provided
12 * with the distribution.
13 * * Neither the name of The Linux Foundation nor the names of its
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29 #ifndef __HWC_BUFFER_ALLOCATOR_H__
30 #define __HWC_BUFFER_ALLOCATOR_H__
31
32 #include <fcntl.h>
33 #include <sys/mman.h>
34
35 #include <android/hardware/graphics/allocator/2.0/IAllocator.h>
36 #include <android/hardware/graphics/allocator/3.0/IAllocator.h>
37 #include <android/hardware/graphics/mapper/2.1/IMapper.h>
38 #include <android/hardware/graphics/mapper/3.0/IMapper.h>
39 #include "gralloc_priv.h"
40
41 using IAllocatorV3 = android::hardware::graphics::allocator::V3_0::IAllocator;
42 using IAllocatorV2 = android::hardware::graphics::allocator::V2_0::IAllocator;
43 using IMapperV3 = android::hardware::graphics::mapper::V3_0::IMapper;
44 using IMapperV2 = android::hardware::graphics::mapper::V2_0::IMapper;
45 namespace sdm {
46
47 template <class Type>
ALIGN(Type x,Type align)48 inline Type ALIGN(Type x, Type align) {
49 return (x + align - 1) & ~(align - 1);
50 }
51
52 class HWCBufferAllocator : public BufferAllocator {
53 public:
54 DisplayError AllocateBuffer(BufferInfo *buffer_info);
55 DisplayError FreeBuffer(BufferInfo *buffer_info);
56 uint32_t GetBufferSize(BufferInfo *buffer_info);
57
58 void GetCustomWidthAndHeight(const private_handle_t *handle, int *width, int *height);
59 void GetAlignedWidthAndHeight(int width, int height, int format, uint32_t alloc_type,
60 int *aligned_width, int *aligned_height);
61 DisplayError GetAllocatedBufferInfo(const BufferConfig &buffer_config,
62 AllocatedBufferInfo *allocated_buffer_info);
63 DisplayError GetBufferLayout(const AllocatedBufferInfo &buf_info, uint32_t stride[4],
64 uint32_t offset[4], uint32_t *num_planes);
65 int SetBufferInfo(LayerBufferFormat format, int *target, uint64_t *flags);
66 DisplayError MapBuffer(const private_handle_t *handle, int acquire_fence);
67 DisplayError UnmapBuffer(const private_handle_t *handle, int *release_fence);
68
69 private:
70 DisplayError GetGrallocInstance();
71 android::sp<IMapperV2> mapper_V2_;
72 android::sp<IMapperV3> mapper_V3_;
73 android::sp<IAllocatorV2> allocator_V2_;
74 android::sp<IAllocatorV3> allocator_V3_;
75 };
76
77 } // namespace sdm
78 #endif // __HWC_BUFFER_ALLOCATOR_H__
79