1// Copyright (C) 2018 The Android Open Source Project 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15import {colorForTid} from '../../common/colorizer'; 16import {TrackState} from '../../common/state'; 17import {checkerboardExcept} from '../../frontend/checkerboard'; 18import {globals} from '../../frontend/globals'; 19import {Track} from '../../frontend/track'; 20import {trackRegistry} from '../../frontend/track_registry'; 21 22import { 23 Config, 24 Data, 25 PROCESS_SUMMARY_TRACK, 26} from './common'; 27 28const MARGIN_TOP = 5; 29const RECT_HEIGHT = 30; 30const TRACK_HEIGHT = MARGIN_TOP * 2 + RECT_HEIGHT; 31const SUMMARY_HEIGHT = TRACK_HEIGHT - MARGIN_TOP; 32 33class ProcessSummaryTrack extends Track<Config, Data> { 34 static readonly kind = PROCESS_SUMMARY_TRACK; 35 static create(trackState: TrackState): ProcessSummaryTrack { 36 return new ProcessSummaryTrack(trackState); 37 } 38 39 constructor(trackState: TrackState) { 40 super(trackState); 41 } 42 43 getHeight(): number { 44 return TRACK_HEIGHT; 45 } 46 47 renderCanvas(ctx: CanvasRenderingContext2D): void { 48 const {timeScale, visibleWindowTime} = globals.frontendLocalState; 49 const data = this.data(); 50 if (data === undefined) return; // Can't possibly draw anything. 51 52 checkerboardExcept( 53 ctx, 54 this.getHeight(), 55 timeScale.timeToPx(visibleWindowTime.start), 56 timeScale.timeToPx(visibleWindowTime.end), 57 timeScale.timeToPx(data.start), 58 timeScale.timeToPx(data.end)); 59 60 this.renderSummary(ctx, data); 61 } 62 63 // TODO(dproy): Dedup with CPU slices. 64 renderSummary(ctx: CanvasRenderingContext2D, data: Data): void { 65 const {timeScale, visibleWindowTime} = globals.frontendLocalState; 66 const startPx = Math.floor(timeScale.timeToPx(visibleWindowTime.start)); 67 const bottomY = TRACK_HEIGHT; 68 69 let lastX = startPx; 70 let lastY = bottomY; 71 72 // TODO(hjd): Dedupe this math. 73 const color = colorForTid(this.config.pidForColor); 74 color.l = Math.min(color.l + 10, 60); 75 color.s -= 20; 76 77 ctx.fillStyle = `hsl(${color.h}, ${color.s}%, ${color.l}%)`; 78 ctx.beginPath(); 79 ctx.moveTo(lastX, lastY); 80 for (let i = 0; i < data.utilizations.length; i++) { 81 // TODO(dproy): Investigate why utilization is > 1 sometimes. 82 const utilization = Math.min(data.utilizations[i], 1); 83 const startTime = i * data.bucketSizeSeconds + data.start; 84 85 lastX = Math.floor(timeScale.timeToPx(startTime)); 86 87 ctx.lineTo(lastX, lastY); 88 lastY = MARGIN_TOP + Math.round(SUMMARY_HEIGHT * (1 - utilization)); 89 ctx.lineTo(lastX, lastY); 90 } 91 ctx.lineTo(lastX, bottomY); 92 ctx.closePath(); 93 ctx.fill(); 94 } 95} 96 97trackRegistry.register(ProcessSummaryTrack); 98