playcanvas/build/playcanvas/src/scene/shader-lib/shader-chunks.js

Open-source WebGL/WebGPU 3D engine for the web

import { SHADERLANGUAGE_GLSL } from "../../platform/graphics/constants.js";
import { DeviceCache } from "../../platform/graphics/device-cache.js";
import { ShaderChunkMap } from "./shader-chunk-map.js";
const _chunksCache = new DeviceCache();
class ShaderChunks {
	static _validations = /* @__PURE__ */ new Map();
	glsl = new ShaderChunkMap(ShaderChunks._validations);
	wgsl = new ShaderChunkMap(ShaderChunks._validations);
	static get(device, shaderLanguage = SHADERLANGUAGE_GLSL) {
		const cache = _chunksCache.get(device, () => {
			return new ShaderChunks();
		});
		return shaderLanguage === SHADERLANGUAGE_GLSL ? cache.glsl : cache.wgsl;
	}
	static registerValidation(name, options) {
	}
	version = "";
	get useWGSL() {
		return this.glsl.size === 0 || this.wgsl.size > 0;
	}
	get key() {
		return `GLSL:${this.glsl.key}|WGSL:${this.wgsl.key}|API:${this.version}`;
	}
	isDirty() {
		return this.glsl.isDirty() || this.wgsl.isDirty();
	}
	resetDirty() {
		this.glsl.resetDirty();
		this.wgsl.resetDirty();
	}
	copy(source) {
		this.version = source.version;
		this.glsl.copy(source.glsl);
		this.wgsl.copy(source.wgsl);
		return this;
	}
}
export {
	ShaderChunks
};