webgltexture-loader-from-arraybuffer

import {
  globalRegistry,
  WebGLTextureLoaderSyncHashCache,
} from "webgltexture-loader";

export interface ArrayBufferInput {
  data: ArrayBuffer;
  hash: string;
}

class ArrayBufferTextureLoader extends WebGLTextureLoaderSyncHashCache<ArrayBufferInput> {

  constructor(gl: WebGLRenderingContext) {
    super(gl);
  }

  canLoad(input: ArrayBufferInput): boolean {
    const res: boolean = input.data instanceof ArrayBuffer;
    return res;
  }

  inputHash(input: ArrayBufferInput): string {
    return input.hash;
  }

  getSize(obj: ArrayBufferInput): [number, number] {
    return [100, 100];
  }

  getNoCache(input: ArrayBufferInput): WebGLTextureLoader.TextureAndSize {
    const { gl } = this;
    const arrayBufferView: Uint8Array = new Uint8Array(input.data);
    
    const texture = gl.createTexture();
    gl.bindTexture(gl.TEXTURE_2D, texture);
    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 100, 100, 0, gl.RGBA, gl.UNSIGNED_BYTE, arrayBufferView);
    return {texture, width: 100, height: 100};
  }

}

globalRegistry.add(ArrayBufferTextureLoader);

export default ArrayBufferTextureLoader;