1/*
2* Copyright (c) 2016 - 2017, 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
30#ifndef __HWC_TONEMAPPER_H__
31#define __HWC_TONEMAPPER_H__
32
33#include <fcntl.h>
34#include <sys/mman.h>
35
36#include <hardware/hwcomposer.h>
37
38#include <core/layer_stack.h>
39#include <utils/sys.h>
40#include <vector>
41#include "hwc_buffer_sync_handler.h"
42#include "hwc_buffer_allocator.h"
43
44class Tonemapper;
45
46namespace sdm {
47
48struct ToneMapConfig {
49  int type = 0;
50  ColorPrimaries colorPrimaries = ColorPrimaries_Max;
51  GammaTransfer transfer = Transfer_Max;
52  LayerBufferFormat format = kFormatRGBA8888;
53  bool secure = false;
54};
55
56class ToneMapSession {
57 public:
58  explicit ToneMapSession(HWCBufferAllocator *buffer_allocator);
59  ~ToneMapSession();
60  DisplayError AllocateIntermediateBuffers(const Layer *layer);
61  void FreeIntermediateBuffers();
62  void UpdateBuffer(int acquire_fence, LayerBuffer *buffer);
63  void SetReleaseFence(int fd);
64  void SetToneMapConfig(Layer *layer);
65  bool IsSameToneMapConfig(Layer *layer);
66
67  static const uint8_t kNumIntermediateBuffers = 2;
68  Tonemapper *gpu_tone_mapper_ = nullptr;
69  HWCBufferAllocator *buffer_allocator_ = nullptr;
70  ToneMapConfig tone_map_config_ = {};
71  uint8_t current_buffer_index_ = 0;
72  std::vector<BufferInfo> buffer_info_ = {};
73  int release_fence_fd_[kNumIntermediateBuffers] = {-1, -1};
74  bool acquired_ = false;
75  int layer_index_ = -1;
76};
77
78class HWCToneMapper {
79 public:
80  explicit HWCToneMapper(HWCBufferAllocator *allocator) : buffer_allocator_(allocator) {}
81  ~HWCToneMapper() {}
82
83  int HandleToneMap(LayerStack *layer_stack);
84  bool IsActive() { return !tone_map_sessions_.empty(); }
85  void PostCommit(LayerStack *layer_stack);
86  void SetFrameDumpConfig(uint32_t count);
87  void Terminate();
88
89 private:
90  void ToneMap(Layer *layer, ToneMapSession *session);
91  DisplayError AcquireToneMapSession(Layer *layer, uint32_t *session_index);
92  void DumpToneMapOutput(ToneMapSession *session, int *acquire_fence);
93
94  std::vector<ToneMapSession*> tone_map_sessions_;
95  HWCBufferSyncHandler buffer_sync_handler_ = {};
96  HWCBufferAllocator *buffer_allocator_ = nullptr;
97  uint32_t dump_frame_count_ = 0;
98  uint32_t dump_frame_index_ = 0;
99  uint32_t fb_session_index_ = 0;
100};
101
102}  // namespace sdm
103#endif  // __HWC_TONEMAPPER_H__
104