libs/hwui/FrameInfo.cpp

/*
 * Copyright (C) 2015 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 "FrameInfo.h"

#include <gui/TraceUtils.h>

#include <cstring>

namespace android {
namespace uirenderer {

const std::array FrameInfoNames{"Flags",
                                "FrameTimelineVsyncId",
                                "IntendedVsync",
                                "Vsync",
                                "InputEventId",
                                "HandleInputStart",
                                "AnimationStart",
                                "PerformTraversalsStart",
                                "DrawStart",
                                "FrameDeadline",
                                "FrameInterval",
                                "FrameStartTime",
                                "SyncQueued",
                                "SyncStart",
                                "IssueDrawCommandsStart",
                                "SwapBuffers",
                                "FrameCompleted",
                                "DequeueBufferDuration",
                                "QueueBufferDuration",
                                "GpuCompleted",
                                "SwapBuffersCompleted",
                                "DisplayPresentTime",
                                "CommandSubmissionCompleted"

};

static_assert(static_cast<int>(FrameInfoIndex::NumIndexes) == 23,
              "Must update value in FrameMetrics.java#FRAME_STATS_COUNT (and here)");

void FrameInfo::importUiThreadInfo(int64_t* info) {
    memcpy(mFrameInfo, info, UI_THREAD_FRAME_INFO_SIZE * sizeof(int64_t));
    mSkippedFrameReason.reset();
}

const char* toString(SkippedFrameReason reason) {
    switch (reason) {
        case SkippedFrameReason::DrawingOff:
            return "DrawingOff";
        case SkippedFrameReason::ContextIsStopped:
            return "ContextIsStopped";
        case SkippedFrameReason::NothingToDraw:
            return "NothingToDraw";
        case SkippedFrameReason::NoOutputTarget:
            return "NoOutputTarget";
        case SkippedFrameReason::NoBuffer:
            return "NoBuffer";
        case SkippedFrameReason::AlreadyDrawn:
            return "AlreadyDrawn";
    }
}

void FrameInfo::setSkippedFrameReason(android::uirenderer::SkippedFrameReason reason) {
    ATRACE_FORMAT_INSTANT("Frame skipped: %s", toString(reason));
    addFlag(FrameInfoFlags::SkippedFrame);
    mSkippedFrameReason = reason;
}

} /* namespace uirenderer */
} /* namespace android */