bool GLScreenBuffer::ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid* pixels) { // If the currently bound framebuffer is backed by a SharedSurface // then it might want to override how we read pixel data from it. // This is normally only the default framebuffer, but we can also // have SharedSurfaces bound to other framebuffers when doing // readback for BasicLayers. SharedSurface* surf; if (GetReadFB() == 0) { surf = SharedSurf(); } else { surf = mGL->mFBOMapping[GetReadFB()]; } if (surf) { return surf->ReadPixels(x, y, width, height, format, type, pixels); } return false; }