deallocateRenderTarget method

void deallocateRenderTarget(RenderTarget renderTarget)

Implementation

void deallocateRenderTarget(RenderTarget renderTarget) {
  var texture = renderTarget.texture;

  var renderTargetProperties = properties.get(renderTarget);
  var textureProperties = properties.get(texture);

  if (textureProperties["__webglTexture"] != null) {
    gl.deleteTexture(textureProperties["__webglTexture"]);
    info.memory["textures"] = info.memory["textures"]! - 1;
  }

  if (renderTarget.depthTexture != null) {
    renderTarget.depthTexture!.dispose();
  }

  if (renderTarget.isWebGLCubeRenderTarget) {
    for (var i = 0; i < 6; i++) {
      gl.deleteFramebuffer(renderTargetProperties["__webglFramebuffer"][i]);
      if (renderTargetProperties["__webglDepthbuffer"] != null) {
        gl.deleteRenderbuffer(
            renderTargetProperties["__webglDepthbuffer"][i]);
      }
    }
  } else {
    gl.deleteFramebuffer(renderTargetProperties["__webglFramebuffer"]);
    if (renderTargetProperties["__webglDepthbuffer"] != null) {
      gl.deleteRenderbuffer(renderTargetProperties["__webglDepthbuffer"]);
    }
    if (renderTargetProperties["__webglMultisampledFramebuffer"] != null) {
      gl.deleteFramebuffer(
          renderTargetProperties["__webglMultisampledFramebuffer"]);
    }
    if (renderTargetProperties["__webglColorRenderbuffer"] != null) {
      gl.deleteRenderbuffer(
          renderTargetProperties["__webglColorRenderbuffer"]);
    }
    if (renderTargetProperties["__webglDepthRenderbuffer"] != null) {
      gl.deleteRenderbuffer(
          renderTargetProperties["__webglDepthRenderbuffer"]);
    }
  }

  if (renderTarget.isWebGLMultipleRenderTargets) {
    for (var i = 0, il = texture.length; i < il; i++) {
      var attachmentProperties = properties.get(texture[i]);

      if (attachmentProperties["__webglTexture"] != null) {
        gl.deleteTexture(attachmentProperties["__webglTexture"]);

        info.memory["textures"] = info.memory["textures"]! - 1;
      }

      properties.remove(texture[i]);
    }
  }

  properties.remove(texture);
  properties.remove(renderTarget);
}