ProgramObject ProgramObject::load( GraphicContext &gc, const std::string &resource_id, const XMLResourceDocument &resources) { ProgramObject program_object(gc); XMLResourceNode resource = resources.get_resource(resource_id); DomNode node = resource.get_element().get_first_child(); while (!node.is_null()) { if (node.is_element()) { DomElement element = node.to_element(); if (element.get_tag_name() == "shader") { ShaderObject shader = ShaderObject::load(gc, element.get_attribute("name"), resources); program_object.attach(shader); } else if (element.get_tag_name() == "bind-attribute") { program_object.bind_attribute_location( StringHelp::text_to_int(element.get_attribute("index")), element.get_attribute("name")); } } node = node.get_next_sibling(); } if (!resource.get_element().get_attribute("shader").empty()) { ShaderObject shader = ShaderObject::load(gc, resource.get_element().get_attribute("shader"), resources); program_object.attach(shader); } if (resource.get_element().get_attribute("link", "true") == "true") if(!program_object.link()) throw Exception(string_format("Unable to link program object: %1", program_object.get_info_log())); return program_object; }