@pixi/core/lib/shader/UniformGroup.mjs

Core PixiJS

import { BUFFER_TYPE } from '@pixi/constants';
import { Buffer } from '../geometry/Buffer.mjs';

let UID = 0;
class UniformGroup {
  constructor(uniforms, isStatic, isUbo) {
    this.group = true;
    this.syncUniforms = {};
    this.dirtyId = 0;
    this.id = UID++;
    this.static = !!isStatic;
    this.ubo = !!isUbo;
    if (uniforms instanceof Buffer) {
      this.buffer = uniforms;
      this.buffer.type = BUFFER_TYPE.UNIFORM_BUFFER;
      this.autoManage = false;
      this.ubo = true;
    } else {
      this.uniforms = uniforms;
      if (this.ubo) {
        this.buffer = new Buffer(new Float32Array(1));
        this.buffer.type = BUFFER_TYPE.UNIFORM_BUFFER;
        this.autoManage = true;
      }
    }
  }
  update() {
    this.dirtyId++;
    if (!this.autoManage && this.buffer) {
      this.buffer.update();
    }
  }
  add(name, uniforms, _static) {
    if (!this.ubo) {
      this.uniforms[name] = new UniformGroup(uniforms, _static);
    } else {
      throw new Error("[UniformGroup] uniform groups in ubo mode cannot be modified, or have uniform groups nested in them");
    }
  }
  static from(uniforms, _static, _ubo) {
    return new UniformGroup(uniforms, _static, _ubo);
  }
  static uboFrom(uniforms, _static) {
    return new UniformGroup(uniforms, _static ?? true, true);
  }
}

export { UniformGroup };
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