Merge "Fix out of range glCopyTexImage2D Bug #9425270" into jb-mr2-dev

        layer->bindTexture();

        if (!bounds.isEmpty()) {

            if (layer->isEmpty()) {

                glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,

                        bounds.left, mSnapshot->height - bounds.bottom,

                        layer->getWidth(), layer->getHeight(), 0);

                // Workaround for some GL drivers. When reading pixels lying outside

                // of the window we should get undefined values for those pixels.

                // Unfortunately some drivers will turn the entire target texture black

                // when reading outside of the window.

                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, layer->getWidth(), layer->getHeight(),

                        0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);

                layer->setEmpty(false);

            } else {

            }

            glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bounds.left,

                    mSnapshot->height - bounds.bottom, bounds.getWidth(), bounds.getHeight());

            }

            // Enqueue the buffer coordinates to clear the corresponding region later

            mLayers.push(new Rect(bounds));