13 static void *map_fb(int fd, int handle, size_t size) {  in map_fb()  argument
21 	ret = drmIoctl(fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &arg);  in map_fb()
27 	ptr = mmap(0, size, PROT_READ, MAP_SHARED, arg.fd, 0);  in map_fb()
36 static int get_fb_dmafd(int fd, int handle)  in get_fb_dmafd()  argument
42 	args.fd = -1;  in get_fb_dmafd()
45 	ret = drmIoctl(fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args);  in get_fb_dmafd()
49 	return args.fd;  in get_fb_dmafd()
52 static void destroy_dumb(int fd, int handle) {  in destroy_dumb()  argument
57 	drmIoctl(fd, DRM_IOCTL_MODE_DESTROY_DUMB, &arg);  in destroy_dumb()
60 static int dump_fb(int fd, int fb_id) {  in dump_fb()  argument
61 	drmModeFBPtr fb = drmModeGetFB(fd, fb_id);  in dump_fb()
73 	dmafd = get_fb_dmafd(fd, fb->handle);  in dump_fb()
78 	ptr = map_fb(fd, fb->handle, size);  in dump_fb()
83 		destroy_dumb(fd, fb->handle);  in dump_fb()
91 static int get_crtc_fb(int fd, int crtc_id) {  in get_crtc_fb()  argument
95 	crtc = drmModeGetCrtc(fd, crtc_id);  in get_crtc_fb()
107 static int get_encoder_fb(int fd, int encoder_id) {  in get_encoder_fb()  argument
111 	encoder = drmModeGetEncoder(fd, encoder_id);  in get_encoder_fb()
117 	id = get_crtc_fb(fd, encoder->crtc_id);  in get_encoder_fb()
123 static int get_connector_fb(int fd, int connector_id) {  in get_connector_fb()  argument
127 	connector = drmModeGetConnector(fd, connector_id);  in get_connector_fb()
133 	id = get_encoder_fb(fd, connector->encoder_id);  in get_connector_fb()
139 static int get_plane_fb(int fd, int plane_id) {  in get_plane_fb()  argument
143 	plane = drmModeGetPlane(fd, plane_id);  in get_plane_fb()
155 static void usage(const char *prog, int fd) {  in usage()  argument
160 	res = drmModeGetResources(fd);  in usage()
167 		crtc = drmModeGetCrtc(fd, res->crtcs[i]);  in usage()
180 	int id, fd;  in main()  local
182 	fd = open("/dev/dri/card0", O_RDWR);  in main()
183 	if (fd < 0) {  in main()
187 	fcntl(fd, F_SETFD, FD_CLOEXEC);  in main()
196 			id = get_crtc_fb(fd, id);  in main()
198 			id = get_connector_fb(fd, id);  in main()
200 			id = get_plane_fb(fd, id);  in main()
202 			usage(argv[0], fd);  in main()
208 			usage(argv[0], fd);  in main()
212 		usage(argv[0], fd);  in main()
220 	dump_fb(fd, id);  in main()