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 "pipeline/rs_vblank_idle_corrector.h"
17
18 #include "hgm_core.h"
19 #include "platform/common/rs_log.h"
20 #include "rs_trace.h"
21 #include "screen_manager/rs_screen_manager.h"
22
23 namespace OHOS {
24 namespace Rosen {
25 namespace {
26 constexpr uint32_t IDLE_FRAME_COUNT_THRESHOLD = 2;
27 };
28
SetScreenVBlankIdle(ScreenId id)29 void RSVBlankIdleCorrector::SetScreenVBlankIdle(ScreenId id)
30 {
31 bool isCorrectorEnabled = HgmCore::Instance().IsVBlankIdleCorrectEnabled();
32 if (isCorrectorEnabled) {
33 currIdleScreenId_ = id;
34 idleFrameCount_ = IDLE_FRAME_COUNT_THRESHOLD;
35 isVBlankIdle_ = true;
36 }
37 }
38
ProcessScreenConstraint(uint64_t timestamp,uint64_t constraintRelativeTime)39 void RSVBlankIdleCorrector::ProcessScreenConstraint(uint64_t timestamp, uint64_t constraintRelativeTime)
40 {
41 auto screenManager = CreateOrGetScreenManager();
42 if (screenManager == nullptr) {
43 RS_LOGE("RSHardwareThread CreateOrGetScreenManager fail.");
44 return;
45 }
46
47 auto defaultScreenId = screenManager->GetDefaultScreenId();
48 bool isCorrectorEnabled = HgmCore::Instance().IsVBlankIdleCorrectEnabled();
49 if (!isCorrectorEnabled) {
50 idleFrameCount_ = 0;
51 isVBlankIdle_ = false;
52 screenManager->SetScreenConstraint(defaultScreenId, 0, ScreenConstraintType::CONSTRAINT_NONE);
53 return;
54 }
55
56 if (isVBlankIdle_) {
57 uint64_t pipelineOffset = static_cast<uint64_t>(HgmCore::Instance().GetPipelineOffset());
58 if (idleFrameCount_ > 0) {
59 uint64_t absoluteTime = timestamp + pipelineOffset;
60 screenManager->SetScreenConstraint(currIdleScreenId_,
61 absoluteTime, ScreenConstraintType::CONSTRAINT_ABSOLUTE);
62 } else {
63 screenManager->SetScreenConstraint(currIdleScreenId_, 0, ScreenConstraintType::CONSTRAINT_NONE);
64 }
65 idleFrameCount_--;
66 if (idleFrameCount_ < 0) {
67 currIdleScreenId_ = defaultScreenId;
68 idleFrameCount_ = 0;
69 isVBlankIdle_ = false;
70 }
71 } else if (constraintRelativeTime > 0) {
72 screenManager->SetScreenConstraint(defaultScreenId,
73 constraintRelativeTime, ScreenConstraintType::CONSTRAINT_RELATIVE);
74 } else {
75 screenManager->SetScreenConstraint(defaultScreenId, 0, ScreenConstraintType::CONSTRAINT_NONE);
76 }
77 }
78 }
79 }
80