| /* |
| * 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. |
| */ |
| |
| package android.view; |
| |
| import android.annotation.IntDef; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| |
| /** |
| * Class that contains all the timing information for the current frame. This |
| * is used in conjunction with the hardware renderer to provide |
| * continous-monitoring jank events |
| * |
| * All times in nanoseconds from CLOCK_MONOTONIC/System.nanoTime() |
| * |
| * To minimize overhead from System.nanoTime() calls we infer durations of |
| * things by knowing the ordering of the events. For example, to know how |
| * long layout & measure took it's displayListRecordStart - performTraversalsStart. |
| * |
| * These constants must be kept in sync with FrameInfo.h in libhwui and are |
| * used for indexing into AttachInfo's mFrameInfo long[], which is intended |
| * to be quick to pass down to native via JNI, hence a pre-packed format |
| * |
| * @hide |
| */ |
| final class FrameInfo { |
| |
| long[] mFrameInfo = new long[9]; |
| |
| // Various flags set to provide extra metadata about the current frame |
| private static final int FLAGS = 0; |
| |
| // Is this the first-draw following a window layout? |
| public static final long FLAG_WINDOW_LAYOUT_CHANGED = 1; |
| |
| @IntDef(flag = true, value = { |
| FLAG_WINDOW_LAYOUT_CHANGED }) |
| @Retention(RetentionPolicy.SOURCE) |
| public @interface FrameInfoFlags {} |
| |
| // The intended vsync time, unadjusted by jitter |
| private static final int INTENDED_VSYNC = 1; |
| |
| // Jitter-adjusted vsync time, this is what was used as input into the |
| // animation & drawing system |
| private static final int VSYNC = 2; |
| |
| // The time of the oldest input event |
| private static final int OLDEST_INPUT_EVENT = 3; |
| |
| // The time of the newest input event |
| private static final int NEWEST_INPUT_EVENT = 4; |
| |
| // When input event handling started |
| private static final int HANDLE_INPUT_START = 5; |
| |
| // When animation evaluations started |
| private static final int ANIMATION_START = 6; |
| |
| // When ViewRootImpl#performTraversals() started |
| private static final int PERFORM_TRAVERSALS_START = 7; |
| |
| // When View:draw() started |
| private static final int DRAW_START = 8; |
| |
| public void setVsync(long intendedVsync, long usedVsync) { |
| mFrameInfo[INTENDED_VSYNC] = intendedVsync; |
| mFrameInfo[VSYNC] = usedVsync; |
| mFrameInfo[OLDEST_INPUT_EVENT] = Long.MAX_VALUE; |
| mFrameInfo[NEWEST_INPUT_EVENT] = 0; |
| mFrameInfo[FLAGS] = 0; |
| } |
| |
| public void updateInputEventTime(long inputEventTime, long inputEventOldestTime) { |
| if (inputEventOldestTime < mFrameInfo[OLDEST_INPUT_EVENT]) { |
| mFrameInfo[OLDEST_INPUT_EVENT] = inputEventOldestTime; |
| } |
| if (inputEventTime > mFrameInfo[NEWEST_INPUT_EVENT]) { |
| mFrameInfo[NEWEST_INPUT_EVENT] = inputEventTime; |
| } |
| } |
| |
| public void markInputHandlingStart() { |
| mFrameInfo[HANDLE_INPUT_START] = System.nanoTime(); |
| } |
| |
| public void markAnimationsStart() { |
| mFrameInfo[ANIMATION_START] = System.nanoTime(); |
| } |
| |
| public void markPerformTraversalsStart() { |
| mFrameInfo[PERFORM_TRAVERSALS_START] = System.nanoTime(); |
| } |
| |
| public void markDrawStart() { |
| mFrameInfo[DRAW_START] = System.nanoTime(); |
| } |
| |
| public void addFlags(@FrameInfoFlags long flags) { |
| mFrameInfo[FLAGS] |= flags; |
| } |
| |
| } |