@pixi/core/lib/textures/resources/BufferResource.mjs

Core PixiJS

import { ALPHA_MODES } from '@pixi/constants';
import { Resource } from './Resource.mjs';

class BufferResource extends Resource {
  constructor(source, options) {
    const { width, height } = options || {};
    if (!width || !height) {
      throw new Error("BufferResource width or height invalid");
    }
    super(width, height);
    this.data = source;
  }
  upload(renderer, baseTexture, glTexture) {
    const gl = renderer.gl;
    gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, baseTexture.alphaMode === ALPHA_MODES.UNPACK);
    const width = baseTexture.realWidth;
    const height = baseTexture.realHeight;
    if (glTexture.width === width && glTexture.height === height) {
      gl.texSubImage2D(baseTexture.target, 0, 0, 0, width, height, baseTexture.format, glTexture.type, this.data);
    } else {
      glTexture.width = width;
      glTexture.height = height;
      gl.texImage2D(baseTexture.target, 0, glTexture.internalFormat, width, height, 0, baseTexture.format, glTexture.type, this.data);
    }
    return true;
  }
  dispose() {
    this.data = null;
  }
  static test(source) {
    return source instanceof Float32Array || source instanceof Uint8Array || source instanceof Uint32Array;
  }
}

export { BufferResource };
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