Daniel Imms
e07b9684bb
Using canvases on Electron (and plain Chromium I believe), when resuming from sleep the graphics card may release the texture which results in the terminal display and char atlas being corrupt. This API allows the consumer to clear the texture atlas right after resuming, atlas warm up is not done to simplify this process because the fact that atlases are shared between multiple terminals complicates this. Related microsoft/vscode#69665
48 lines
1.5 KiB
TypeScript
48 lines
1.5 KiB
TypeScript
/**
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* Copyright (c) 2017 The xterm.js authors. All rights reserved.
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* @license MIT
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*/
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import { Terminal, ITerminalAddon } from 'xterm';
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import { WebglRenderer } from './WebglRenderer';
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import { IRenderService } from 'browser/services/Services';
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import { IColorSet } from 'browser/Types';
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export class WebglAddon implements ITerminalAddon {
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private _terminal?: Terminal;
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private _renderer?: WebglRenderer;
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constructor(
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private _preserveDrawingBuffer?: boolean
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) {}
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public activate(terminal: Terminal): void {
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if (!terminal.element) {
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throw new Error('Cannot activate WebglAddon before Terminal.open');
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}
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this._terminal = terminal;
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const renderService: IRenderService = (<any>terminal)._core._renderService;
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const colors: IColorSet = (<any>terminal)._core._colorManager.colors;
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this._renderer = new WebglRenderer(terminal, colors, this._preserveDrawingBuffer);
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renderService.setRenderer(this._renderer);
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}
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public dispose(): void {
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if (!this._terminal) {
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throw new Error('Cannot dispose WebglAddon because it is activated');
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}
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const renderService: IRenderService = (this._terminal as any)._core._renderService;
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renderService.setRenderer((this._terminal as any)._core._createRenderer());
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renderService.onResize(this._terminal.cols, this._terminal.rows);
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this._renderer = undefined;
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}
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public get textureAtlas(): HTMLCanvasElement | undefined {
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return this._renderer?.textureAtlas;
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}
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public clearTextureAtlas(): void {
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this._renderer?.clearCharAtlas();
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}
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}
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