Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Alec Mouri | d7599d8 | 2019-05-22 19:58:00 -0700 | [diff] [blame] | 17 | #define ATRACE_TAG ATRACE_TAG_GRAPHICS |
| 18 | |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 19 | #undef LOG_TAG |
| 20 | #define LOG_TAG "VsyncModulator" |
| 21 | |
Dominik Laskowski | a93a531 | 2020-07-23 15:10:03 -0700 | [diff] [blame] | 22 | #include "VsyncModulator.h" |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 23 | |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 24 | #include <android-base/properties.h> |
| 25 | #include <log/log.h> |
Alec Mouri | d7599d8 | 2019-05-22 19:58:00 -0700 | [diff] [blame] | 26 | #include <utils/Trace.h> |
| 27 | |
Alec Mouri | f792cfe | 2020-06-05 13:11:23 -0700 | [diff] [blame] | 28 | #include <chrono> |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 29 | #include <cinttypes> |
| 30 | #include <mutex> |
| 31 | |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 32 | using namespace std::chrono_literals; |
| 33 | |
Dominik Laskowski | eddeda1 | 2019-07-19 11:54:13 -0700 | [diff] [blame] | 34 | namespace android::scheduler { |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 35 | |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 36 | const std::chrono::nanoseconds VsyncModulator::MIN_EARLY_TRANSACTION_TIME = 1ms; |
Alec Mouri | d7599d8 | 2019-05-22 19:58:00 -0700 | [diff] [blame] | 37 | |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 38 | VsyncModulator::VsyncModulator(const VsyncConfigSet& config, Now now) |
| 39 | : mVsyncConfigSet(config), |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 40 | mNow(now), |
| 41 | mTraceDetailedInfo(base::GetBoolProperty("debug.sf.vsync_trace_detailed_info", false)) {} |
| 42 | |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 43 | VsyncModulator::VsyncConfig VsyncModulator::setVsyncConfigSet(const VsyncConfigSet& config) { |
Alec Mouri | d7599d8 | 2019-05-22 19:58:00 -0700 | [diff] [blame] | 44 | std::lock_guard<std::mutex> lock(mMutex); |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 45 | mVsyncConfigSet = config; |
| 46 | return updateVsyncConfigLocked(); |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 47 | } |
| 48 | |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 49 | VsyncModulator::VsyncConfigOpt VsyncModulator::setTransactionSchedule( |
| 50 | TransactionSchedule schedule) { |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 51 | switch (schedule) { |
| 52 | case Schedule::EarlyStart: |
| 53 | ALOGW_IF(mExplicitEarlyWakeup, "%s: Duplicate EarlyStart", __FUNCTION__); |
Ady Abraham | bf1349c | 2020-06-12 14:26:18 -0700 | [diff] [blame] | 54 | mExplicitEarlyWakeup = true; |
| 55 | break; |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 56 | case Schedule::EarlyEnd: |
| 57 | ALOGW_IF(!mExplicitEarlyWakeup, "%s: Unexpected EarlyEnd", __FUNCTION__); |
Ady Abraham | bf1349c | 2020-06-12 14:26:18 -0700 | [diff] [blame] | 58 | mExplicitEarlyWakeup = false; |
| 59 | break; |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 60 | case Schedule::Early: |
| 61 | case Schedule::Late: |
| 62 | // No change to mExplicitEarlyWakeup for non-explicit states. |
Ady Abraham | bf1349c | 2020-06-12 14:26:18 -0700 | [diff] [blame] | 63 | break; |
| 64 | } |
| 65 | |
| 66 | if (mTraceDetailedInfo) { |
| 67 | ATRACE_INT("mExplicitEarlyWakeup", mExplicitEarlyWakeup); |
| 68 | } |
| 69 | |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 70 | if (!mExplicitEarlyWakeup && (schedule == Schedule::Early || schedule == Schedule::EarlyEnd)) { |
| 71 | mEarlyTransactionFrames = MIN_EARLY_TRANSACTION_FRAMES; |
| 72 | mEarlyTransactionStartTime = mNow(); |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 73 | } |
| 74 | |
| 75 | // An early transaction stays an early transaction. |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 76 | if (schedule == mTransactionSchedule || mTransactionSchedule == Schedule::EarlyEnd) { |
| 77 | return std::nullopt; |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 78 | } |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 79 | mTransactionSchedule = schedule; |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 80 | return updateVsyncConfig(); |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 81 | } |
| 82 | |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 83 | VsyncModulator::VsyncConfigOpt VsyncModulator::onTransactionCommit() { |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 84 | mLastTransactionCommitTime = mNow(); |
| 85 | if (mTransactionSchedule == Schedule::Late) return std::nullopt; |
| 86 | mTransactionSchedule = Schedule::Late; |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 87 | return updateVsyncConfig(); |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 88 | } |
| 89 | |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 90 | VsyncModulator::VsyncConfigOpt VsyncModulator::onRefreshRateChangeInitiated() { |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 91 | if (mRefreshRateChangePending) return std::nullopt; |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 92 | mRefreshRateChangePending = true; |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 93 | return updateVsyncConfig(); |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 94 | } |
| 95 | |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 96 | VsyncModulator::VsyncConfigOpt VsyncModulator::onRefreshRateChangeCompleted() { |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 97 | if (!mRefreshRateChangePending) return std::nullopt; |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 98 | mRefreshRateChangePending = false; |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 99 | return updateVsyncConfig(); |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 100 | } |
| 101 | |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 102 | VsyncModulator::VsyncConfigOpt VsyncModulator::onDisplayRefresh(bool usedGpuComposition) { |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 103 | bool updateOffsetsNeeded = false; |
Alec Mouri | f792cfe | 2020-06-05 13:11:23 -0700 | [diff] [blame] | 104 | |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 105 | if (mEarlyTransactionStartTime.load() + MIN_EARLY_TRANSACTION_TIME <= |
| 106 | mLastTransactionCommitTime.load()) { |
| 107 | if (mEarlyTransactionFrames > 0) { |
| 108 | mEarlyTransactionFrames--; |
Alec Mouri | f792cfe | 2020-06-05 13:11:23 -0700 | [diff] [blame] | 109 | updateOffsetsNeeded = true; |
| 110 | } |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 111 | } |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 112 | if (usedGpuComposition) { |
| 113 | mEarlyGpuFrames = MIN_EARLY_GPU_FRAMES; |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 114 | updateOffsetsNeeded = true; |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 115 | } else if (mEarlyGpuFrames > 0) { |
| 116 | mEarlyGpuFrames--; |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 117 | updateOffsetsNeeded = true; |
| 118 | } |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 119 | |
| 120 | if (!updateOffsetsNeeded) return std::nullopt; |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 121 | return updateVsyncConfig(); |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 122 | } |
| 123 | |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 124 | VsyncModulator::VsyncConfig VsyncModulator::getVsyncConfig() const { |
Alec Mouri | d7599d8 | 2019-05-22 19:58:00 -0700 | [diff] [blame] | 125 | std::lock_guard<std::mutex> lock(mMutex); |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 126 | return mVsyncConfig; |
Alec Mouri | d7599d8 | 2019-05-22 19:58:00 -0700 | [diff] [blame] | 127 | } |
| 128 | |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 129 | const VsyncModulator::VsyncConfig& VsyncModulator::getNextVsyncConfig() const { |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 130 | // Early offsets are used if we're in the middle of a refresh rate |
| 131 | // change, or if we recently begin a transaction. |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 132 | if (mExplicitEarlyWakeup || mTransactionSchedule == Schedule::EarlyEnd || |
| 133 | mEarlyTransactionFrames > 0 || mRefreshRateChangePending) { |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 134 | return mVsyncConfigSet.early; |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 135 | } else if (mEarlyGpuFrames > 0) { |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 136 | return mVsyncConfigSet.earlyGpu; |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 137 | } else { |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 138 | return mVsyncConfigSet.late; |
Alec Mouri | b488afa | 2019-05-23 10:22:24 -0700 | [diff] [blame] | 139 | } |
| 140 | } |
| 141 | |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 142 | VsyncModulator::VsyncConfig VsyncModulator::updateVsyncConfig() { |
Alec Mouri | d7599d8 | 2019-05-22 19:58:00 -0700 | [diff] [blame] | 143 | std::lock_guard<std::mutex> lock(mMutex); |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 144 | return updateVsyncConfigLocked(); |
Alec Mouri | d7599d8 | 2019-05-22 19:58:00 -0700 | [diff] [blame] | 145 | } |
| 146 | |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 147 | VsyncModulator::VsyncConfig VsyncModulator::updateVsyncConfigLocked() { |
| 148 | const VsyncConfig& offsets = getNextVsyncConfig(); |
| 149 | mVsyncConfig = offsets; |
Ady Abraham | 11b6a70 | 2019-06-27 11:24:19 -0700 | [diff] [blame] | 150 | |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 151 | if (mTraceDetailedInfo) { |
Ady Abraham | 8287e85 | 2020-08-12 14:44:58 -0700 | [diff] [blame] | 152 | const bool isEarly = &offsets == &mVsyncConfigSet.early; |
| 153 | const bool isEarlyGpu = &offsets == &mVsyncConfigSet.earlyGpu; |
| 154 | const bool isLate = &offsets == &mVsyncConfigSet.late; |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 155 | |
| 156 | ATRACE_INT("Vsync-EarlyOffsetsOn", isEarly); |
| 157 | ATRACE_INT("Vsync-EarlyGpuOffsetsOn", isEarlyGpu); |
| 158 | ATRACE_INT("Vsync-LateOffsetsOn", isLate); |
Alec Mouri | d7599d8 | 2019-05-22 19:58:00 -0700 | [diff] [blame] | 159 | } |
Dominik Laskowski | eddeda1 | 2019-07-19 11:54:13 -0700 | [diff] [blame] | 160 | |
Dominik Laskowski | 08d05c2 | 2020-07-22 00:05:08 -0700 | [diff] [blame] | 161 | return offsets; |
Alec Mouri | d7599d8 | 2019-05-22 19:58:00 -0700 | [diff] [blame] | 162 | } |
| 163 | |
Dominik Laskowski | eddeda1 | 2019-07-19 11:54:13 -0700 | [diff] [blame] | 164 | } // namespace android::scheduler |