mirror of
https://github.com/hajimehoshi/ebiten.git
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238 lines
9.7 KiB
C++
Vendored
238 lines
9.7 KiB
C++
Vendored
/*
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* Copyright 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "oboe_oboe_AudioStreamBuilder_android.h"
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#include "oboe_oboe_Oboe_android.h"
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#include "oboe_common_OboeDebug_android.h"
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#include "oboe_common_QuirksManager_android.h"
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using namespace oboe;
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int32_t QuirksManager::DeviceQuirks::clipBufferSize(AudioStream &stream,
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int32_t requestedSize) {
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if (!OboeGlobals::areWorkaroundsEnabled()) {
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return requestedSize;
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}
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int bottomMargin = kDefaultBottomMarginInBursts;
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int topMargin = kDefaultTopMarginInBursts;
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if (isMMapUsed(stream)) {
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if (stream.getSharingMode() == SharingMode::Exclusive) {
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bottomMargin = getExclusiveBottomMarginInBursts();
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topMargin = getExclusiveTopMarginInBursts();
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}
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} else {
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bottomMargin = kLegacyBottomMarginInBursts;
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}
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int32_t burst = stream.getFramesPerBurst();
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int32_t minSize = bottomMargin * burst;
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int32_t adjustedSize = requestedSize;
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if (adjustedSize < minSize ) {
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adjustedSize = minSize;
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} else {
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int32_t maxSize = stream.getBufferCapacityInFrames() - (topMargin * burst);
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if (adjustedSize > maxSize ) {
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adjustedSize = maxSize;
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}
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}
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return adjustedSize;
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}
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bool QuirksManager::DeviceQuirks::isAAudioMMapPossible(const AudioStreamBuilder &builder) const {
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bool isSampleRateCompatible =
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builder.getSampleRate() == oboe::Unspecified
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|| builder.getSampleRate() == kCommonNativeRate
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|| builder.getSampleRateConversionQuality() != SampleRateConversionQuality::None;
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return builder.getPerformanceMode() == PerformanceMode::LowLatency
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&& isSampleRateCompatible
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&& builder.getChannelCount() <= kChannelCountStereo;
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}
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class SamsungDeviceQuirks : public QuirksManager::DeviceQuirks {
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public:
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SamsungDeviceQuirks() {
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std::string arch = getPropertyString("ro.arch");
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isExynos = (arch.rfind("exynos", 0) == 0); // starts with?
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std::string chipname = getPropertyString("ro.hardware.chipname");
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isExynos9810 = (chipname == "exynos9810");
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isExynos990 = (chipname == "exynos990");
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isExynos850 = (chipname == "exynos850");
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mBuildChangelist = getPropertyInteger("ro.build.changelist", 0);
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}
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virtual ~SamsungDeviceQuirks() = default;
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int32_t getExclusiveBottomMarginInBursts() const override {
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// TODO Make this conditional on build version when MMAP timing improves.
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return isExynos ? kBottomMarginExynos : kBottomMarginOther;
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}
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int32_t getExclusiveTopMarginInBursts() const override {
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return kTopMargin;
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}
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// See Oboe issues #824 and #1247 for more information.
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bool isMonoMMapActuallyStereo() const override {
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return isExynos9810 || isExynos850; // TODO We can make this version specific if it gets fixed.
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}
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bool isAAudioMMapPossible(const AudioStreamBuilder &builder) const override {
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return DeviceQuirks::isAAudioMMapPossible(builder)
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// Samsung says they use Legacy for Camcorder
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&& builder.getInputPreset() != oboe::InputPreset::Camcorder;
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}
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bool isMMapSafe(const AudioStreamBuilder &builder) override {
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const bool isInput = builder.getDirection() == Direction::Input;
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// This detects b/159066712 , S20 LSI has corrupt low latency audio recording
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// and turns off MMAP.
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// See also https://github.com/google/oboe/issues/892
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bool mRecordingCorrupted = isInput
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&& isExynos990
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&& mBuildChangelist < 19350896;
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return !mRecordingCorrupted;
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}
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private:
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// Stay farther away from DSP position on Exynos devices.
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static constexpr int32_t kBottomMarginExynos = 2;
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static constexpr int32_t kBottomMarginOther = 1;
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static constexpr int32_t kTopMargin = 1;
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bool isExynos = false;
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bool isExynos9810 = false;
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bool isExynos990 = false;
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bool isExynos850 = false;
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int mBuildChangelist = 0;
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};
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QuirksManager::QuirksManager() {
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std::string manufacturer = getPropertyString("ro.product.manufacturer");
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if (manufacturer == "samsung") {
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mDeviceQuirks = std::make_unique<SamsungDeviceQuirks>();
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} else {
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mDeviceQuirks = std::make_unique<DeviceQuirks>();
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}
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}
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bool QuirksManager::isConversionNeeded(
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const AudioStreamBuilder &builder,
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AudioStreamBuilder &childBuilder) {
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bool conversionNeeded = false;
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const bool isLowLatency = builder.getPerformanceMode() == PerformanceMode::LowLatency;
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const bool isInput = builder.getDirection() == Direction::Input;
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const bool isFloat = builder.getFormat() == AudioFormat::Float;
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// There are multiple bugs involving using callback with a specified callback size.
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// Issue #778: O to Q had a problem with Legacy INPUT streams for FLOAT streams
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// and a specified callback size. It would assert because of a bad buffer size.
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//
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// Issue #973: O to R had a problem with Legacy output streams using callback and a specified callback size.
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// An AudioTrack stream could still be running when the AAudio FixedBlockReader was closed.
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// Internally b/161914201#comment25
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//
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// Issue #983: O to R would glitch if the framesPerCallback was too small.
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//
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// Most of these problems were related to Legacy stream. MMAP was OK. But we don't
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// know if we will get an MMAP stream. So, to be safe, just do the conversion in Oboe.
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if (OboeGlobals::areWorkaroundsEnabled()
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&& builder.willUseAAudio()
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&& builder.isDataCallbackSpecified()
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&& builder.getFramesPerDataCallback() != 0
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&& getSdkVersion() <= __ANDROID_API_R__) {
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LOGI("QuirksManager::%s() avoid setFramesPerCallback(n>0)", __func__);
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childBuilder.setFramesPerCallback(oboe::Unspecified);
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conversionNeeded = true;
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}
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// If a SAMPLE RATE is specified for low latency then let the native code choose an optimal rate.
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// TODO There may be a problem if the devices supports low latency
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// at a higher rate than the default.
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if (builder.getSampleRate() != oboe::Unspecified
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&& builder.getSampleRateConversionQuality() != SampleRateConversionQuality::None
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&& isLowLatency
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) {
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childBuilder.setSampleRate(oboe::Unspecified); // native API decides the best sample rate
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conversionNeeded = true;
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}
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// Data Format
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// OpenSL ES and AAudio before P do not support FAST path for FLOAT capture.
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if (isFloat
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&& isInput
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&& builder.isFormatConversionAllowed()
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&& isLowLatency
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&& (!builder.willUseAAudio() || (getSdkVersion() < __ANDROID_API_P__))
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) {
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childBuilder.setFormat(AudioFormat::I16); // needed for FAST track
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conversionNeeded = true;
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LOGI("QuirksManager::%s() forcing internal format to I16 for low latency", __func__);
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}
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// Add quirk for float output on API <21
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if (isFloat
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&& !isInput
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&& getSdkVersion() < __ANDROID_API_L__
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&& builder.isFormatConversionAllowed()
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) {
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childBuilder.setFormat(AudioFormat::I16);
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conversionNeeded = true;
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LOGI("QuirksManager::%s() float was requested but not supported on pre-L devices, "
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"creating an underlying I16 stream and using format conversion to provide a float "
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"stream", __func__);
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}
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// Channel Count conversions
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if (OboeGlobals::areWorkaroundsEnabled()
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&& builder.isChannelConversionAllowed()
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&& builder.getChannelCount() == kChannelCountStereo
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&& isInput
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&& isLowLatency
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&& (!builder.willUseAAudio() && (getSdkVersion() == __ANDROID_API_O__))
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) {
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// Workaround for heap size regression in O.
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// b/66967812 AudioRecord does not allow FAST track for stereo capture in O
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childBuilder.setChannelCount(kChannelCountMono);
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conversionNeeded = true;
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LOGI("QuirksManager::%s() using mono internally for low latency on O", __func__);
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} else if (OboeGlobals::areWorkaroundsEnabled()
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&& builder.getChannelCount() == kChannelCountMono
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&& isInput
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&& mDeviceQuirks->isMonoMMapActuallyStereo()
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&& builder.willUseAAudio()
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// Note: we might use this workaround on a device that supports
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// MMAP but will use Legacy for this stream. But this will only happen
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// on devices that have the broken mono.
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&& mDeviceQuirks->isAAudioMMapPossible(builder)
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) {
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// Workaround for mono actually running in stereo mode.
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childBuilder.setChannelCount(kChannelCountStereo); // Use stereo and extract first channel.
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conversionNeeded = true;
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LOGI("QuirksManager::%s() using stereo internally to avoid broken mono", __func__);
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}
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// Note that MMAP does not support mono in 8.1. But that would only matter on Pixel 1
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// phones and they have almost all been updated to 9.0.
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return conversionNeeded;
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}
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bool QuirksManager::isMMapSafe(AudioStreamBuilder &builder) {
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if (!OboeGlobals::areWorkaroundsEnabled()) return true;
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return mDeviceQuirks->isMMapSafe(builder);
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}
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