1 /*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "display_engine/rs_luminance_control.h"
17
18 namespace {
19 constexpr float HDR_DEFAULT_TMO_NIT = 1000.0f;
20 constexpr float HDR_DEFAULT_SCALER = 1000.0f / 203.0f;
21 }
22
23 namespace OHOS {
24 namespace Rosen {
~RSLuminanceControl()25 RSLuminanceControl::~RSLuminanceControl()
26 {
27 // destructor
28 }
29
SetHdrStatus(ScreenId screenId,HdrStatus hdrstatus)30 bool RSLuminanceControl::SetHdrStatus(ScreenId screenId, HdrStatus hdrstatus)
31 {
32 // Update HDR status in order to determine brightness.
33 return false;
34 }
35
IsHdrOn(ScreenId screenId)36 bool RSLuminanceControl::IsHdrOn(ScreenId screenId)
37 {
38 return false;
39 }
40
IsDimmingOn(ScreenId screenId)41 bool RSLuminanceControl::IsDimmingOn(ScreenId screenId)
42 {
43 return false;
44 }
45
DimmingIncrease(ScreenId screenId)46 void RSLuminanceControl::DimmingIncrease(ScreenId screenId)
47 {
48 // Update HDR dimming index.
49 }
50
SetSdrLuminance(ScreenId screenId,uint32_t level)51 void RSLuminanceControl::SetSdrLuminance(ScreenId screenId, uint32_t level)
52 {
53 // Update SDR brightness.
54 }
55
GetNewHdrLuminance(ScreenId screenId)56 uint32_t RSLuminanceControl::GetNewHdrLuminance(ScreenId screenId)
57 {
58 return 0;
59 }
60
SetNowHdrLuminance(ScreenId screenId,uint32_t level)61 void RSLuminanceControl::SetNowHdrLuminance(ScreenId screenId, uint32_t level)
62 {
63 // Update HDR brightness after dimming increase.
64 }
65
IsNeedUpdateLuminance(ScreenId screenId)66 bool RSLuminanceControl::IsNeedUpdateLuminance(ScreenId screenId)
67 {
68 return false;
69 }
70
GetSdrDisplayNits(ScreenId screenId)71 float RSLuminanceControl::GetSdrDisplayNits(ScreenId screenId)
72 {
73 return HDR_DEFAULT_TMO_NIT;
74 }
75
GetDisplayNits(ScreenId screenId)76 float RSLuminanceControl::GetDisplayNits(ScreenId screenId)
77 {
78 return HDR_DEFAULT_TMO_NIT;
79 }
80
GetHdrBrightnessRatio(ScreenId screenId,int mode)81 double RSLuminanceControl::GetHdrBrightnessRatio(ScreenId screenId, int mode)
82 {
83 return 1.0; // 1.0 refers to default value, no need to process.
84 }
85
CalScaler(const float & maxContentLightLevel,int32_t dynamicMetadataSize,const float & ratio)86 float RSLuminanceControl::CalScaler(const float& maxContentLightLevel, int32_t dynamicMetadataSize, const float& ratio)
87 {
88 return HDR_DEFAULT_SCALER;
89 }
90
IsHdrPictureOn()91 bool RSLuminanceControl::IsHdrPictureOn()
92 {
93 return false;
94 }
95
IsCloseHardwareHdr()96 bool IsCloseHardwareHdr()
97 {
98 return false;
99 }
100 } // namespace Rosen
101 } // namespace OHOS