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// Copyright (C) 2019 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 {search, searchEq} from '../../base/binary_search';
import {Actions} from '../../common/actions';
import {cropText} from '../../common/canvas_utils';
import {TrackState} from '../../common/state';
import {translateState} from '../../common/thread_state';
import {colorForState} from '../../frontend/colorizer';
import {globals} from '../../frontend/globals';
import {Track} from '../../frontend/track';
import {trackRegistry} from '../../frontend/track_registry';
import {
Config,
Data,
groupBusyStates,
THREAD_STATE_TRACK_KIND,
} from './common';
const MARGIN_TOP = 4;
const RECT_HEIGHT = 12;
class ThreadStateTrack extends Track<Config, Data> {
static readonly kind = THREAD_STATE_TRACK_KIND;
static create(trackState: TrackState): ThreadStateTrack {
return new ThreadStateTrack(trackState);
}
constructor(trackState: TrackState) {
super(trackState);
}
getHeight(): number {
return 2 * MARGIN_TOP + RECT_HEIGHT;
}
renderCanvas(ctx: CanvasRenderingContext2D): void {
const {timeScale, visibleWindowTime} = globals.frontendLocalState;
const data = this.data();
const charWidth = ctx.measureText('dbpqaouk').width / 8;
if (data === undefined) return; // Can't possibly draw anything.
for (let i = 0; i < data.starts.length; i++) {
const tStart = data.starts[i];
const tEnd = data.ends[i];
const state = data.strings[data.state[i]];
if (tEnd <= visibleWindowTime.start || tStart >= visibleWindowTime.end) {
continue;
}
if (tStart && tEnd) {
// Don't display a slice for Task Dead.
if (state === 'x') continue;
const rectStart = timeScale.timeToPx(tStart);
const rectEnd = timeScale.timeToPx(tEnd);
const color = colorForState(state);
ctx.fillStyle = `hsl(${color.h},${color.s}%,${color.l}%)`;
let rectWidth = rectEnd - rectStart;
if (groupBusyStates(data.resolution) && rectWidth < 1) {
rectWidth = 1;
}
ctx.fillRect(rectStart, MARGIN_TOP, rectWidth, RECT_HEIGHT);
// Don't render text when we have less than 5px to play with.
if (rectWidth < 5) continue;
ctx.textAlign = 'center';
const title = cropText(translateState(state), charWidth, rectWidth);
const rectXCenter = rectStart + rectWidth / 2;
ctx.fillStyle = color.l < 80 ? '#fff' : '#404040';
ctx.font = '10px Google Sans';
ctx.fillText(title, rectXCenter, MARGIN_TOP + RECT_HEIGHT / 2 + 3);
}
}
const selection = globals.state.currentSelection;
if (selection !== null && selection.kind === 'THREAD_STATE' &&
selection.utid === this.config.utid) {
const [startIndex, endIndex] = searchEq(data.starts, selection.ts);
if (startIndex !== endIndex) {
const tStart = data.starts[startIndex];
const tEnd = data.ends[startIndex];
const state = data.strings[data.state[startIndex]];
const rectStart = timeScale.timeToPx(tStart);
const rectEnd = timeScale.timeToPx(tEnd);
const color = colorForState(state);
ctx.strokeStyle = `hsl(${color.h},${color.s}%,${color.l * 0.7}%)`;
ctx.beginPath();
ctx.lineWidth = 3;
ctx.strokeRect(
rectStart, MARGIN_TOP - 1.5, rectEnd - rectStart, RECT_HEIGHT + 3);
ctx.closePath();
}
}
}
onMouseClick({x}: {x: number}) {
const data = this.data();
if (data === undefined) return false;
const {timeScale} = globals.frontendLocalState;
const time = timeScale.pxToTime(x);
const index = search(data.starts, time);
const ts = index === -1 ? undefined : data.starts[index];
const tsEnd = index === -1 ? undefined : data.ends[index];
const state = index === -1 ? undefined : data.strings[data.state[index]];
const cpu = index === -1 ? undefined : data.cpu[index];
const utid = this.config.utid;
if (ts && state && tsEnd && cpu !== undefined) {
globals.makeSelection(Actions.selectThreadState({
utid,
ts,
dur: tsEnd - ts,
state,
cpu,
trackId: this.trackState.id
}));
return true;
}
return false;
}
}
trackRegistry.register(ThreadStateTrack);
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