| /* |
| * Copyright 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "PhaseOffsets.h" |
| |
| #include <cutils/properties.h> |
| |
| #include "SurfaceFlingerProperties.h" |
| |
| namespace android { |
| using namespace android::sysprop; |
| |
| namespace scheduler { |
| |
| PhaseOffsets::~PhaseOffsets() = default; |
| |
| namespace impl { |
| PhaseOffsets::PhaseOffsets() { |
| int64_t vsyncPhaseOffsetNs = vsync_event_phase_offset_ns(1000000); |
| |
| int64_t sfVsyncPhaseOffsetNs = vsync_sf_event_phase_offset_ns(1000000); |
| |
| char value[PROPERTY_VALUE_MAX]; |
| property_get("debug.sf.early_phase_offset_ns", value, "-1"); |
| const int earlySfOffsetNs = atoi(value); |
| |
| property_get("debug.sf.early_gl_phase_offset_ns", value, "-1"); |
| const int earlyGlSfOffsetNs = atoi(value); |
| |
| property_get("debug.sf.early_app_phase_offset_ns", value, "-1"); |
| const int earlyAppOffsetNs = atoi(value); |
| |
| property_get("debug.sf.early_gl_app_phase_offset_ns", value, "-1"); |
| const int earlyGlAppOffsetNs = atoi(value); |
| |
| property_get("debug.sf.high_fps_early_phase_offset_ns", value, "-1"); |
| const int highFpsEarlySfOffsetNs = atoi(value); |
| |
| property_get("debug.sf.high_fps_early_gl_phase_offset_ns", value, "-1"); |
| const int highFpsEarlyGlSfOffsetNs = atoi(value); |
| |
| property_get("debug.sf.high_fps_early_app_phase_offset_ns", value, "-1"); |
| const int highFpsEarlyAppOffsetNs = atoi(value); |
| |
| property_get("debug.sf.high_fps_early_gl_app_phase_offset_ns", value, "-1"); |
| const int highFpsEarlyGlAppOffsetNs = atoi(value); |
| |
| // TODO(b/122905996): Define these in device.mk. |
| property_get("debug.sf.high_fps_late_app_phase_offset_ns", value, "2000000"); |
| const int highFpsLateAppOffsetNs = atoi(value); |
| |
| property_get("debug.sf.high_fps_late_sf_phase_offset_ns", value, "1000000"); |
| const int highFpsLateSfOffsetNs = atoi(value); |
| |
| // Below defines the threshold when an offset is considered to be negative, i.e. targeting |
| // for the N+2 vsync instead of N+1. This means that: |
| // For offset < threshold, SF wake up (vsync_duration - offset) before HW vsync. |
| // For offset >= threshold, SF wake up (2 * vsync_duration - offset) before HW vsync. |
| property_get("debug.sf.phase_offset_threshold_for_next_vsync_ns", value, "-1"); |
| const int phaseOffsetThresholdForNextVsyncNs = atoi(value); |
| |
| mDefaultRefreshRateOffsets.early = {earlySfOffsetNs != -1 ? earlySfOffsetNs |
| : sfVsyncPhaseOffsetNs, |
| earlyAppOffsetNs != -1 ? earlyAppOffsetNs |
| : vsyncPhaseOffsetNs}; |
| mDefaultRefreshRateOffsets.earlyGl = {earlyGlSfOffsetNs != -1 ? earlyGlSfOffsetNs |
| : sfVsyncPhaseOffsetNs, |
| earlyGlAppOffsetNs != -1 ? earlyGlAppOffsetNs |
| : vsyncPhaseOffsetNs}; |
| mDefaultRefreshRateOffsets.late = {sfVsyncPhaseOffsetNs, vsyncPhaseOffsetNs}; |
| |
| mHighRefreshRateOffsets.early = {highFpsEarlySfOffsetNs != -1 ? highFpsEarlySfOffsetNs |
| : highFpsLateSfOffsetNs, |
| highFpsEarlyAppOffsetNs != -1 ? highFpsEarlyAppOffsetNs |
| : highFpsLateAppOffsetNs}; |
| mHighRefreshRateOffsets.earlyGl = {highFpsEarlyGlSfOffsetNs != -1 ? highFpsEarlyGlSfOffsetNs |
| : highFpsLateSfOffsetNs, |
| highFpsEarlyGlAppOffsetNs != -1 ? highFpsEarlyGlAppOffsetNs |
| : highFpsLateAppOffsetNs}; |
| mHighRefreshRateOffsets.late = {highFpsLateSfOffsetNs, highFpsLateAppOffsetNs}; |
| |
| mOffsetThresholdForNextVsync = phaseOffsetThresholdForNextVsyncNs != -1 |
| ? phaseOffsetThresholdForNextVsyncNs |
| : std::numeric_limits<nsecs_t>::max(); |
| } |
| |
| PhaseOffsets::Offsets PhaseOffsets::getOffsetsForRefreshRate( |
| android::scheduler::RefreshRateConfigs::RefreshRateType refreshRateType) const { |
| switch (refreshRateType) { |
| case RefreshRateConfigs::RefreshRateType::PERFORMANCE: |
| return mHighRefreshRateOffsets; |
| default: |
| return mDefaultRefreshRateOffsets; |
| } |
| } |
| |
| void PhaseOffsets::dump(std::string& result) const { |
| const auto [early, earlyGl, late] = getCurrentOffsets(); |
| base::StringAppendF(&result, |
| " app phase: %9" PRId64 " ns\t SF phase: %9" PRId64 " ns\n" |
| " early app phase: %9" PRId64 " ns\t early SF phase: %9" PRId64 " ns\n" |
| "GL early app phase: %9" PRId64 " ns\tGL early SF phase: %9" PRId64 " ns\n", |
| late.app, late.sf, early.app, early.sf, earlyGl.app, earlyGl.sf); |
| } |
| |
| nsecs_t PhaseOffsets::getCurrentAppOffset() { |
| return getCurrentOffsets().late.app; |
| } |
| |
| nsecs_t PhaseOffsets::getCurrentSfOffset() { |
| return getCurrentOffsets().late.sf; |
| } |
| |
| } // namespace impl |
| } // namespace scheduler |
| } // namespace android |