Method _setupOutputTexture

src/backend/web-gl2/kernel.js:278–311

()

  }

  _setupOutputTexture() {
    const gl = this.context;
    if (this.texture) {
      // here we inherit from an already existing kernel, so go ahead and just bind textures to the framebuffer
      gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, this.texture.texture, 0);
      return;
    }
    gl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer);
    const texture = gl.createTexture();
    const texSize = this.texSize;
    gl.activeTexture(gl.TEXTURE0 + this.constantTextureCount + this.argumentTextureCount);
    gl.bindTexture(gl.TEXTURE_2D, texture);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    const format = this.getInternalFormat();
    if (this.precision === 'single') {
      gl.texStorage2D(gl.TEXTURE_2D, 1, format, texSize[0], texSize[1]);
    } else {
      gl.texImage2D(gl.TEXTURE_2D, 0, format, texSize[0], texSize[1], 0, format, gl.UNSIGNED_BYTE, null);
    }
    gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0);
    this.texture = new this.TextureConstructor({
      texture,
      size: texSize,
      dimensions: this.threadDim,
      output: this.output,
      context: this.context,
      internalFormat: this.getInternalFormat(),
      textureFormat: this.getTextureFormat(),
      kernel: this,
    });
  }

  _setupSubOutputTextures() {
    const gl = this.context;