98 lines
2.8 KiB
TypeScript
98 lines
2.8 KiB
TypeScript
// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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import { env } from 'onnxruntime-common';
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import { Backend, SessionHandler } from '../backend';
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import { Logger } from '../instrument';
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import { Session } from '../session';
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import { WebGLSessionHandler } from './webgl/session-handler';
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import { WebGLContext } from './webgl/webgl-context';
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import { createWebGLContext } from './webgl/webgl-context-factory';
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/**
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* WebGLBackend is the entry point for all WebGL opeartions
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* When it starts it created the WebGLRenderingContext
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* and other main framework components such as Program and Texture Managers
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*/
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export class WebGLBackend implements Backend {
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glContext: WebGLContext;
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get contextId(): 'webgl' | 'webgl2' | undefined {
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return env.webgl.contextId;
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}
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set contextId(value: 'webgl' | 'webgl2' | undefined) {
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env.webgl.contextId = value;
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}
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get matmulMaxBatchSize(): number | undefined {
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return env.webgl.matmulMaxBatchSize;
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}
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set matmulMaxBatchSize(value: number | undefined) {
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env.webgl.matmulMaxBatchSize = value;
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}
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get textureCacheMode(): 'initializerOnly' | 'full' | undefined {
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return env.webgl.textureCacheMode;
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}
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set textureCacheMode(value: 'initializerOnly' | 'full' | undefined) {
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env.webgl.textureCacheMode = value;
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}
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get pack(): boolean | undefined {
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return env.webgl.pack;
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}
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set pack(value: boolean | undefined) {
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env.webgl.pack = value;
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}
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get async(): boolean | undefined {
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return env.webgl.async;
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}
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set async(value: boolean | undefined) {
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env.webgl.async = value;
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}
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initialize(): boolean {
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try {
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this.glContext = createWebGLContext(this.contextId);
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if (typeof this.matmulMaxBatchSize !== 'number') {
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this.matmulMaxBatchSize = 16;
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}
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if (typeof this.textureCacheMode !== 'string') {
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this.textureCacheMode = 'full';
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}
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if (typeof this.pack !== 'boolean') {
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this.pack = false;
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}
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if (typeof this.async !== 'boolean') {
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this.async = false;
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}
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Logger.setWithEnv(env);
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if (!env.webgl.context) {
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Object.defineProperty(env.webgl, 'context', { value: this.glContext.gl });
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}
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Logger.verbose(
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'WebGLBackend',
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`Created WebGLContext: ${typeof this.glContext} with matmulMaxBatchSize: ${
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this.matmulMaxBatchSize
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}; textureCacheMode: ${this.textureCacheMode}; pack: ${this.pack}; async: ${this.async}.`,
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);
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return true;
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} catch (e) {
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Logger.warning('WebGLBackend', `Unable to initialize WebGLBackend. ${e}`);
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return false;
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}
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}
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createSessionHandler(context: Session.Context): SessionHandler {
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return new WebGLSessionHandler(this, context);
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}
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dispose(): void {
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this.glContext.dispose();
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}
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}
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