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// Copyright (C) 2021 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.
import {searchSegment} from '../../base/binary_search';
import {Actions} from '../../common/actions';
import {PluginContext} from '../../common/plugin_api';
import {LONG} from '../../common/query_result';
import {ProfileType} from '../../common/state';
import {TPDuration, TPTime} from '../../common/time';
import {TrackData} from '../../common/track_data';
import {TrackController} from '../../controller/track_controller';
import {FLAMEGRAPH_HOVERED_COLOR} from '../../frontend/flamegraph';
import {globals} from '../../frontend/globals';
import {TimeScale} from '../../frontend/time_scale';
import {NewTrackArgs, Track} from '../../frontend/track';
export const PERF_SAMPLES_PROFILE_TRACK_KIND = 'PerfSamplesProfileTrack';
export interface Data extends TrackData {
tsStarts: BigInt64Array;
}
export interface Config {
upid: number;
}
class PerfSamplesProfileTrackController extends TrackController<Config, Data> {
static readonly kind = PERF_SAMPLES_PROFILE_TRACK_KIND;
async onBoundsChange(start: TPTime, end: TPTime, resolution: TPDuration):
Promise<Data> {
if (this.config.upid === undefined) {
return {
start,
end,
resolution,
length: 0,
tsStarts: new BigInt64Array(),
};
}
const queryRes = await this.query(`
select ts, upid from perf_sample
join thread using (utid)
where upid = ${this.config.upid}
and callsite_id is not null
order by ts`);
const numRows = queryRes.numRows();
const data: Data = {
start,
end,
resolution,
length: numRows,
tsStarts: new BigInt64Array(numRows),
};
const it = queryRes.iter({ts: LONG});
for (let row = 0; it.valid(); it.next(), row++) {
data.tsStarts[row] = it.ts;
}
return data;
}
}
const PERP_SAMPLE_COLOR = 'hsl(224, 45%, 70%)';
// 0.5 Makes the horizontal lines sharp.
const MARGIN_TOP = 4.5;
const RECT_HEIGHT = 30.5;
class PerfSamplesProfileTrack extends Track<Config, Data> {
static readonly kind = PERF_SAMPLES_PROFILE_TRACK_KIND;
static create(args: NewTrackArgs): PerfSamplesProfileTrack {
return new PerfSamplesProfileTrack(args);
}
private centerY = this.getHeight() / 2;
private markerWidth = (this.getHeight() - MARGIN_TOP) / 2;
private hoveredTs: TPTime|undefined = undefined;
constructor(args: NewTrackArgs) {
super(args);
}
getHeight() {
return MARGIN_TOP + RECT_HEIGHT - 1;
}
renderCanvas(ctx: CanvasRenderingContext2D): void {
const {
visibleTimeScale,
} = globals.frontendLocalState;
const data = this.data();
if (data === undefined) return;
for (let i = 0; i < data.tsStarts.length; i++) {
const centerX = data.tsStarts[i];
const selection = globals.state.currentSelection;
const isHovered = this.hoveredTs === centerX;
const isSelected = selection !== null &&
selection.kind === 'PERF_SAMPLES' &&
selection.leftTs <= centerX && selection.rightTs >= centerX;
const strokeWidth = isSelected ? 3 : 0;
this.drawMarker(
ctx,
visibleTimeScale.tpTimeToPx(centerX),
this.centerY,
isHovered,
strokeWidth);
}
}
drawMarker(
ctx: CanvasRenderingContext2D, x: number, y: number, isHovered: boolean,
strokeWidth: number): void {
ctx.beginPath();
ctx.moveTo(x, y - this.markerWidth);
ctx.lineTo(x - this.markerWidth, y);
ctx.lineTo(x, y + this.markerWidth);
ctx.lineTo(x + this.markerWidth, y);
ctx.lineTo(x, y - this.markerWidth);
ctx.closePath();
ctx.fillStyle = isHovered ? FLAMEGRAPH_HOVERED_COLOR : PERP_SAMPLE_COLOR;
ctx.fill();
if (strokeWidth > 0) {
ctx.strokeStyle = FLAMEGRAPH_HOVERED_COLOR;
ctx.lineWidth = strokeWidth;
ctx.stroke();
}
}
onMouseMove({x, y}: {x: number, y: number}) {
const data = this.data();
if (data === undefined) return;
const {visibleTimeScale} = globals.frontendLocalState;
const time = visibleTimeScale.pxToHpTime(x);
const [left, right] = searchSegment(data.tsStarts, time.toTPTime());
const index =
this.findTimestampIndex(left, visibleTimeScale, data, x, y, right);
this.hoveredTs = index === -1 ? undefined : data.tsStarts[index];
}
onMouseOut() {
this.hoveredTs = undefined;
}
onMouseClick({x, y}: {x: number, y: number}) {
const data = this.data();
if (data === undefined) return false;
const {visibleTimeScale} = globals.frontendLocalState;
const time = visibleTimeScale.pxToHpTime(x);
const [left, right] = searchSegment(data.tsStarts, time.toTPTime());
const index =
this.findTimestampIndex(left, visibleTimeScale, data, x, y, right);
if (index !== -1) {
const ts = data.tsStarts[index];
globals.makeSelection(Actions.selectPerfSamples({
id: index,
upid: this.config.upid,
leftTs: ts,
rightTs: ts,
type: ProfileType.PERF_SAMPLE,
}));
return true;
}
return false;
}
// If the markers overlap the rightmost one will be selected.
findTimestampIndex(
left: number, timeScale: TimeScale, data: Data, x: number, y: number,
right: number): number {
let index = -1;
if (left !== -1) {
const centerX = timeScale.tpTimeToPx(data.tsStarts[left]);
if (this.isInMarker(x, y, centerX)) {
index = left;
}
}
if (right !== -1) {
const centerX = timeScale.tpTimeToPx(data.tsStarts[right]);
if (this.isInMarker(x, y, centerX)) {
index = right;
}
}
return index;
}
isInMarker(x: number, y: number, centerX: number) {
return Math.abs(x - centerX) + Math.abs(y - this.centerY) <=
this.markerWidth;
}
}
export function activate(ctx: PluginContext) {
ctx.registerTrackController(PerfSamplesProfileTrackController);
ctx.registerTrack(PerfSamplesProfileTrack);
}
export const plugin = {
pluginId: 'perfetto.PerfSamplesProfile',
activate,
};
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