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Commit 0c6385a1 authored by Ana Krulec's avatar Ana Krulec Committed by Android (Google) Code Review
Browse files

Merge "SF: Move DispSyncSource into it's own file."

parents de1d6c17 241cf835
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+1 −0
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@@ -128,6 +128,7 @@ filegroup {
        "RenderEngine/Surface.cpp",
        "RenderEngine/Texture.cpp",
        "Scheduler/DispSync.cpp",
        "Scheduler/DispSyncSource.cpp",
        "Scheduler/EventControlThread.cpp",
        "Scheduler/EventThread.cpp",
        "Scheduler/MessageQueue.cpp",
+106 −0
Original line number Diff line number Diff line
/*
 * Copyright 2018 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 "DispSyncSource.h"

#include <utils/Mutex.h>
#include <utils/Trace.h>

#include "DispSync.h"
#include "EventThread.h"

namespace android {

DispSyncSource::DispSyncSource(DispSync* dispSync, nsecs_t phaseOffset, bool traceVsync,
                               const char* name)
      : mName(name),
        mValue(0),
        mTraceVsync(traceVsync),
        mVsyncOnLabel(String8::format("VsyncOn-%s", name)),
        mVsyncEventLabel(String8::format("VSYNC-%s", name)),
        mDispSync(dispSync),
        mCallbackMutex(),
        mVsyncMutex(),
        mPhaseOffset(phaseOffset),
        mEnabled(false) {}

void DispSyncSource::setVSyncEnabled(bool enable) {
    Mutex::Autolock lock(mVsyncMutex);
    if (enable) {
        status_t err = mDispSync->addEventListener(mName, mPhaseOffset,
                                                   static_cast<DispSync::Callback*>(this));
        if (err != NO_ERROR) {
            ALOGE("error registering vsync callback: %s (%d)", strerror(-err), err);
        }
        // ATRACE_INT(mVsyncOnLabel.string(), 1);
    } else {
        status_t err = mDispSync->removeEventListener(static_cast<DispSync::Callback*>(this));
        if (err != NO_ERROR) {
            ALOGE("error unregistering vsync callback: %s (%d)", strerror(-err), err);
        }
        // ATRACE_INT(mVsyncOnLabel.string(), 0);
    }
    mEnabled = enable;
}

void DispSyncSource::setCallback(VSyncSource::Callback* callback) {
    Mutex::Autolock lock(mCallbackMutex);
    mCallback = callback;
}

void DispSyncSource::setPhaseOffset(nsecs_t phaseOffset) {
    Mutex::Autolock lock(mVsyncMutex);

    // Normalize phaseOffset to [0, period)
    auto period = mDispSync->getPeriod();
    phaseOffset %= period;
    if (phaseOffset < 0) {
        // If we're here, then phaseOffset is in (-period, 0). After this
        // operation, it will be in (0, period)
        phaseOffset += period;
    }
    mPhaseOffset = phaseOffset;

    // If we're not enabled, we don't need to mess with the listeners
    if (!mEnabled) {
        return;
    }

    status_t err =
            mDispSync->changePhaseOffset(static_cast<DispSync::Callback*>(this), mPhaseOffset);
    if (err != NO_ERROR) {
        ALOGE("error changing vsync offset: %s (%d)", strerror(-err), err);
    }
}

void DispSyncSource::onDispSyncEvent(nsecs_t when) {
    VSyncSource::Callback* callback;
    {
        Mutex::Autolock lock(mCallbackMutex);
        callback = mCallback;

        if (mTraceVsync) {
            mValue = (mValue + 1) % 2;
            ATRACE_INT(mVsyncEventLabel.string(), mValue);
        }
    }

    if (callback != nullptr) {
        callback->onVSyncEvent(when);
    }
}

} // namespace android
 No newline at end of file
+59 −0
Original line number Diff line number Diff line
/*
 * Copyright 2018 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.
 */
#pragma once

#include <utils/Mutex.h>
#include <utils/String8.h>

#include "DispSync.h"
#include "EventThread.h"

namespace android {

class DispSyncSource final : public VSyncSource, private DispSync::Callback {
public:
    DispSyncSource(DispSync* dispSync, nsecs_t phaseOffset, bool traceVsync, const char* name);

    ~DispSyncSource() override = default;

    // The following methods are implementation of VSyncSource.
    void setVSyncEnabled(bool enable) override;
    void setCallback(VSyncSource::Callback* callback) override;
    void setPhaseOffset(nsecs_t phaseOffset) override;

private:
    // The following method is the implementation of the DispSync::Callback.
    virtual void onDispSyncEvent(nsecs_t when);

    const char* const mName;

    int mValue;

    const bool mTraceVsync;
    const String8 mVsyncOnLabel;
    const String8 mVsyncEventLabel;

    DispSync* mDispSync;

    Mutex mCallbackMutex; // Protects the following
    VSyncSource::Callback* mCallback = nullptr;

    Mutex mVsyncMutex; // Protects the following
    nsecs_t mPhaseOffset;
    bool mEnabled;
};

} // namespace android
 No newline at end of file
+1 −106
Original line number Diff line number Diff line
@@ -85,6 +85,7 @@
#include "Effects/Daltonizer.h"
#include "RenderEngine/RenderEngine.h"
#include "Scheduler/DispSync.h"
#include "Scheduler/DispSyncSource.h"
#include "Scheduler/EventControlThread.h"
#include "Scheduler/EventThread.h"

@@ -565,112 +566,6 @@ void SurfaceFlinger::deleteTextureAsync(uint32_t texture) {
    postMessageAsync(new LambdaMessage([=] { getRenderEngine().deleteTextures(1, &texture); }));
}

class DispSyncSource final : public VSyncSource, private DispSync::Callback {
public:
    DispSyncSource(DispSync* dispSync, nsecs_t phaseOffset, bool traceVsync,
        const char* name) :
            mName(name),
            mValue(0),
            mTraceVsync(traceVsync),
            mVsyncOnLabel(String8::format("VsyncOn-%s", name)),
            mVsyncEventLabel(String8::format("VSYNC-%s", name)),
            mDispSync(dispSync),
            mCallbackMutex(),
            mVsyncMutex(),
            mPhaseOffset(phaseOffset),
            mEnabled(false) {}

    ~DispSyncSource() override = default;

    void setVSyncEnabled(bool enable) override {
        Mutex::Autolock lock(mVsyncMutex);
        if (enable) {
            status_t err = mDispSync->addEventListener(mName, mPhaseOffset,
                    static_cast<DispSync::Callback*>(this));
            if (err != NO_ERROR) {
                ALOGE("error registering vsync callback: %s (%d)",
                        strerror(-err), err);
            }
            //ATRACE_INT(mVsyncOnLabel.string(), 1);
        } else {
            status_t err = mDispSync->removeEventListener(
                    static_cast<DispSync::Callback*>(this));
            if (err != NO_ERROR) {
                ALOGE("error unregistering vsync callback: %s (%d)",
                        strerror(-err), err);
            }
            //ATRACE_INT(mVsyncOnLabel.string(), 0);
        }
        mEnabled = enable;
    }

    void setCallback(VSyncSource::Callback* callback) override{
        Mutex::Autolock lock(mCallbackMutex);
        mCallback = callback;
    }

    void setPhaseOffset(nsecs_t phaseOffset) override {
        Mutex::Autolock lock(mVsyncMutex);

        // Normalize phaseOffset to [0, period)
        auto period = mDispSync->getPeriod();
        phaseOffset %= period;
        if (phaseOffset < 0) {
            // If we're here, then phaseOffset is in (-period, 0). After this
            // operation, it will be in (0, period)
            phaseOffset += period;
        }
        mPhaseOffset = phaseOffset;

        // If we're not enabled, we don't need to mess with the listeners
        if (!mEnabled) {
            return;
        }

        status_t err = mDispSync->changePhaseOffset(static_cast<DispSync::Callback*>(this),
                mPhaseOffset);
        if (err != NO_ERROR) {
            ALOGE("error changing vsync offset: %s (%d)",
                    strerror(-err), err);
        }
    }

private:
    virtual void onDispSyncEvent(nsecs_t when) {
        VSyncSource::Callback* callback;
        {
            Mutex::Autolock lock(mCallbackMutex);
            callback = mCallback;

            if (mTraceVsync) {
                mValue = (mValue + 1) % 2;
                ATRACE_INT(mVsyncEventLabel.string(), mValue);
            }
        }

        if (callback != nullptr) {
            callback->onVSyncEvent(when);
        }
    }

    const char* const mName;

    int mValue;

    const bool mTraceVsync;
    const String8 mVsyncOnLabel;
    const String8 mVsyncEventLabel;

    DispSync* mDispSync;

    Mutex mCallbackMutex; // Protects the following
    VSyncSource::Callback* mCallback = nullptr;

    Mutex mVsyncMutex; // Protects the following
    nsecs_t mPhaseOffset;
    bool mEnabled;
};

class InjectVSyncSource final : public VSyncSource {
public:
    InjectVSyncSource() = default;