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 <utils/sync_task.h>
41#include <vector>
42#include "hwc_buffer_sync_handler.h"
43#include "hwc_buffer_allocator.h"
44
45class Tonemapper;
46
47namespace sdm {
48
49enum class ToneMapTaskCode : int32_t {
50  kCodeGetInstance,
51  kCodeBlit,
52  kCodeDestroy,
53};
54
55struct ToneMapGetInstanceContext : public SyncTask<ToneMapTaskCode>::TaskContext {
56  Layer *layer = nullptr;
57};
58
59struct ToneMapBlitContext : public SyncTask<ToneMapTaskCode>::TaskContext {
60  Layer *layer = nullptr;
61  int merged_fd = -1;
62  int fence_fd = -1;
63};
64
65struct ToneMapConfig {
66  int type = 0;
67  ColorPrimaries colorPrimaries = ColorPrimaries_Max;
68  GammaTransfer transfer = Transfer_Max;
69  LayerBufferFormat format = kFormatRGBA8888;
70  bool secure = false;
71};
72
73class ToneMapSession : public SyncTask<ToneMapTaskCode>::TaskHandler {
74 public:
75  explicit ToneMapSession(HWCBufferAllocator *buffer_allocator);
76  ~ToneMapSession();
77  DisplayError AllocateIntermediateBuffers(const Layer *layer);
78  void FreeIntermediateBuffers();
79  void UpdateBuffer(int acquire_fence, LayerBuffer *buffer);
80  void SetReleaseFence(int fd);
81  void SetToneMapConfig(Layer *layer);
82  bool IsSameToneMapConfig(Layer *layer);
83
84  // TaskHandler methods implementation.
85  virtual void OnTask(const ToneMapTaskCode &task_code,
86                      SyncTask<ToneMapTaskCode>::TaskContext *task_context);
87
88  static const uint8_t kNumIntermediateBuffers = 2;
89  SyncTask<ToneMapTaskCode> tone_map_task_;
90  Tonemapper *gpu_tone_mapper_ = nullptr;
91  HWCBufferAllocator *buffer_allocator_ = nullptr;
92  ToneMapConfig tone_map_config_ = {};
93  uint8_t current_buffer_index_ = 0;
94  std::vector<BufferInfo> buffer_info_ = {};
95  int release_fence_fd_[kNumIntermediateBuffers] = {-1, -1};
96  bool acquired_ = false;
97  int layer_index_ = -1;
98};
99
100class HWCToneMapper {
101 public:
102  explicit HWCToneMapper(HWCBufferAllocator *allocator) : buffer_allocator_(allocator) {}
103  ~HWCToneMapper() {}
104
105  int HandleToneMap(LayerStack *layer_stack);
106  bool IsActive() { return !tone_map_sessions_.empty(); }
107  void PostCommit(LayerStack *layer_stack);
108  void SetFrameDumpConfig(uint32_t count);
109  void Terminate();
110
111 private:
112  void ToneMap(Layer *layer, ToneMapSession *session);
113  DisplayError AcquireToneMapSession(Layer *layer, uint32_t *session_index);
114  void DumpToneMapOutput(ToneMapSession *session, int *acquire_fence);
115
116  std::vector<ToneMapSession*> tone_map_sessions_;
117  HWCBufferSyncHandler buffer_sync_handler_ = {};
118  HWCBufferAllocator *buffer_allocator_ = nullptr;
119  uint32_t dump_frame_count_ = 0;
120  uint32_t dump_frame_index_ = 0;
121  uint32_t fb_session_index_ = 0;
122};
123
124}  // namespace sdm
125#endif  // __HWC_TONEMAPPER_H__
126