@animech-public/playcanvas/build/playcanvas.prf/src/platform/graphics/shader.js

PlayCanvas WebGL game engine

import { platform } from '../../core/platform.js';
import { Preprocessor } from '../../core/preprocessor.js';

let id = 0;
class Shader {
	constructor(graphicsDevice, definition) {
		this.meshUniformBufferFormat = void 0;
		this.meshBindGroupFormat = void 0;
		this.id = id++;
		this.device = graphicsDevice;
		this.definition = definition;
		this.name = definition.name || 'Untitled';
		this.init();
		if (definition.cshader) ; else {
			definition.vshader = Preprocessor.run(definition.vshader, definition.vincludes);
			const stripUnusedColorAttachments = graphicsDevice.isWebGL2 && (platform.name === 'osx' || platform.name === 'ios');
			definition.fshader = Preprocessor.run(definition.fshader, definition.fincludes, stripUnusedColorAttachments);
		}
		this.impl = graphicsDevice.createShaderImpl(this);
	}
	init() {
		this.ready = false;
		this.failed = false;
	}
	get label() {
		return `Shader Id ${this.id} ${this.name}`;
	}
	destroy() {
		this.device.onDestroyShader(this);
		this.impl.destroy(this);
	}
	loseContext() {
		this.init();
		this.impl.loseContext();
	}
	restoreContext() {
		this.impl.restoreContext(this.device, this);
	}
}

export { Shader };