void gf_sg_set_scene_size_info(GF_SceneGraph *sg, u32 width, u32 height, Bool usePixelMetrics)
{
	if (!sg) return;
	if (width && height) {
		sg->width = width;
		sg->height = height;
	} else {
		sg->width = sg->height = 0;
	}
	sg->usePixelMetrics = usePixelMetrics;
}
void gf_sg_set_scene_size_info(GF_SceneGraph *sg, u32 width, u32 height, Bool usePixelMetrics)
{
	if (!sg) return;
	if (width && height) {
		sg->width = width;
		sg->height = height;
	} else {
		sg->width = sg->height = 0;
	}
	sg->usePixelMetrics = usePixelMetrics;
}