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-rw-r--r--tests/modedemo/demo.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/tests/modedemo/demo.c b/tests/modedemo/demo.c
new file mode 100644
index 00000000..ea71fd1d
--- /dev/null
+++ b/tests/modedemo/demo.c
@@ -0,0 +1,119 @@
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "xf86drm.h"
+#include "xf86drmMode.h"
+static struct drm_mode_modeinfo mode = {
+ .name = "Test mode",
+ .clock = 25200,
+ .hdisplay = 640,
+ .hsync_start = 656,
+ .hsync_end = 752,
+ .htotal = 800,
+ .hskew = 0,
+ .vdisplay = 480,
+ .vsync_start = 490,
+ .vsync_end = 492,
+ .vtotal = 525,
+ .vscan = 0,
+ .vrefresh = 60000, /* vertical refresh * 1000 */
+ .flags = 10,
+};
+
+drmModeFBPtr createFB(int fd, drmModeResPtr res);
+int findConnectedOutputs(int fd, drmModeResPtr res, drmModeOutputPtr *out);
+drmModeCrtcPtr findFreeCrtc(int fd, drmModeResPtr res);
+
+int main(int argc, char **argv)
+{
+ int fd;
+ const char *driver = "i915"; /* hardcoded for now */
+ drmModeResPtr res;
+ drmModeFBPtr framebuffer;
+ int numOutputs;
+ drmModeOutputPtr out[8];
+ drmModeCrtcPtr crtc;
+
+ printf("Starting test\n");
+
+ fd = drmOpen(driver, NULL);
+
+ if (fd < 0) {
+ printf("Failed to open the card fb\n");
+ return 1;
+ }
+
+ res = drmModeGetResources(fd);
+ if (res == 0) {
+ printf("Failed to get resources from card\n");
+ drmClose(fd);
+ return 1;
+ }
+
+ framebuffer = createFB(fd, res);
+ if (framebuffer == NULL) {
+ printf("Failed to create framebuffer\n");
+ return 1;
+ }
+
+ numOutputs = findConnectedOutputs(fd, res, out);
+ if (numOutputs < 1) {
+ printf("Failed to find connected outputs\n");
+ return 1;
+ }
+
+ crtc = findFreeCrtc(fd, res);
+ if (numOutputs < 1) {
+ printf("Couldn't find a free crtc\n");
+ return 1;
+ }
+
+
+ drmModeSetCrtc(fd, crtc->crtc_id, framebuffer->buffer_id, 0, 0, &out[0]->output_id, 1, &mode);
+ sleep(2);
+ drmModeSetCrtc(fd, crtc->crtc_id, framebuffer->buffer_id, 0, 500, &out[0]->output_id, 1, &mode);
+ sleep(2);
+ drmModeSetCrtc(fd, crtc->crtc_id, framebuffer->buffer_id, 500, 0, &out[0]->output_id, 1, &mode);
+ sleep(2);
+ drmModeSetCrtc(fd, crtc->crtc_id, framebuffer->buffer_id, 500, 500, &out[0]->output_id, 1, &mode);
+
+ drmModeFreeResources(res);
+ printf("Ok\n");
+
+ return 0;
+}
+
+drmModeFBPtr createFB(int fd, drmModeResPtr res)
+{
+ /* Haveing problems getting drmBOCreate to work with me. */
+ return drmModeGetFB(fd, res->fbs[1]);
+}
+
+int findConnectedOutputs(int fd, drmModeResPtr res, drmModeOutputPtr *out)
+{
+ int count = 0;
+ int i;
+
+ drmModeOutputPtr output;
+
+ for (i = 0; i < res->count_outputs; i++) {
+ output = drmModeGetOutput(fd, res->outputs[i]);
+
+ if (!output || output->connection != DRM_MODE_CONNECTED)
+ continue;
+
+ out[count++] = output;
+ }
+
+ return count;
+}
+
+drmModeCrtcPtr findFreeCrtc(int fd, drmModeResPtr res)
+{
+ return drmModeGetCrtc(fd, res->crtcs[0]);
+}