--- /dev/null
+/*
+ * Copyright © 2014 NVIDIA Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <drm_fourcc.h>
+
+#include "util/pattern.h"
+#include "libkms-test.h"
+
+static void signal_handler(int signum)
+{
+}
+
+int main(int argc, char *argv[])
+{
+ struct kms_framebuffer *fb;
+ struct kms_screen *screen;
+ struct kms_device *device;
+ unsigned int index = 0;
+ struct sigaction sa;
+ int fd, err;
+ void *ptr;
+
+ if (argc < 2) {
+ fprintf(stderr, "usage: %s DEVICE\n", argv[0]);
+ return 1;
+ }
+
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_handler = signal_handler;
+
+ err = sigaction(SIGINT, &sa, NULL);
+ if (err < 0) {
+ fprintf(stderr, "sigaction() failed: %m\n");
+ return 1;
+ }
+
+ fd = open(argv[1], O_RDWR);
+ if (fd < 0) {
+ fprintf(stderr, "open() failed: %m\n");
+ return 1;
+ }
+
+ device = kms_device_open(fd);
+ if (!device) {
+ fprintf(stderr, "kms_device_open() failed: %m\n");
+ return 1;
+ }
+
+ if (device->num_screens < 1) {
+ fprintf(stderr, "no screens found\n");
+ kms_device_close(device);
+ close(fd);
+ return 1;
+ }
+
+ /* TODO: allow command-line to override */
+ screen = device->screens[0];
+
+ printf("Using screen %s, resolution %ux%u\n", screen->name,
+ screen->width, screen->height);
+
+ fb = kms_framebuffer_create(device, screen->width, screen->height,
+ DRM_FORMAT_XRGB8888);
+ if (!fb) {
+ fprintf(stderr, "kms_framebuffer_create() failed\n");
+ return 1;
+ }
+
+ err = kms_framebuffer_map(fb, &ptr);
+ if (err < 0) {
+ fprintf(stderr, "kms_framebuffer_map() failed: %d\n", err);
+ return 1;
+ }
+
+ util_fill_pattern(fb->format, UTIL_PATTERN_SMPTE, &ptr, fb->width,
+ fb->height, fb->pitch);
+
+ kms_framebuffer_unmap(fb);
+
+ err = kms_screen_set(screen, device->crtcs[index++], fb);
+ if (err < 0) {
+ fprintf(stderr, "kms_screen_set() failed: %d\n", err);
+ return 1;
+ }
+
+ while (true) {
+ int nfds = STDIN_FILENO + 1;
+ struct timeval timeout;
+ fd_set fds;
+
+ memset(&timeout, 0, sizeof(timeout));
+ timeout.tv_sec = 5;
+ timeout.tv_usec = 0;
+
+ FD_ZERO(&fds);
+ FD_SET(STDIN_FILENO, &fds);
+
+ err = select(nfds, &fds, NULL, NULL, &timeout);
+ if (err < 0) {
+ if (errno == EINTR)
+ break;
+
+ fprintf(stderr, "select() failed: %d\n", errno);
+ break;
+ }
+
+ if (err > 0) {
+ if (FD_ISSET(STDIN_FILENO, &fds))
+ break;
+ }
+
+ /* switch CRTC */
+ if (index >= device->num_crtcs)
+ index = 0;
+
+ err = kms_screen_set(screen, device->crtcs[index], fb);
+ if (err < 0) {
+ fprintf(stderr, "kms_screen_set() failed: %d\n", err);
+ break;
+ }
+
+ index++;
+ }
+
+ kms_framebuffer_free(fb);
+ kms_device_close(device);
+ close(fd);
+
+ return 0;
+}