Add output test-script
The test_output application is an example how to use the output subsystem. It lists all connected monitors/DRM-outputs and draws with OpenGL on the selected framebuffers. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
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tests/test_output.c
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177
tests/test_output.c
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/*
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* test_output - Test KMS/DRI output
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* Written 2011 by David Herrmann <dh.herrmann@googlemail.com>
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*/
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/*
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* Test KMS/DRI output subsystem
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* This is an example how to use the output subsystem. Invoked without
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* arguments it prints a list of all connected outputs and their modes.
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* If you pass numbers as arguments, it will enable these outputs and show an
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* image on the given monitors for 5 seconds.
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* The application terminates automatically after 5 seconds, however, you need
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* to switch VT to re-enable output on your screen. This application does not
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* reset the screen automatically, yet.
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*
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* This lists all outputs:
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* $ ./test_output
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*
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* This would show a test screen on output 0 and 4:
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* $ ./test_output 0 4
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* The test screen is a white background with two gray triangles in the top-left
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* and lower-right corner.
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*/
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#define GL_GLEXT_PROTOTYPES
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#include <inttypes.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <GL/gl.h>
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#include <GL/glext.h>
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#include "output.h"
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static int set_outputs(struct kmscon_compositor *comp, int num, char **list)
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{
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struct kmscon_output *iter;
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int i, j, val, ret;
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j = 0;
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iter = kmscon_compositor_get_outputs(comp);
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for ( ; iter; iter = kmscon_output_next(iter)) {
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for (i = 0; i < num; ++i) {
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val = atoi(list[i]);
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if (val == j)
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break;
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}
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if (i == num) {
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printf("Ignoring output %d\n", j);
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} else {
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printf("Activating output %d %p...\n", j, iter);
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ret = kmscon_output_activate(iter, NULL);
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if (ret)
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printf("Cannot activate output %d: %d\n", j,
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ret);
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else
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printf("Successfully activated output %d\n",
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j);
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}
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++j;
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}
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iter = kmscon_compositor_get_outputs(comp);
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for ( ; iter; iter = kmscon_output_next(iter)) {
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if (!kmscon_output_is_active(iter))
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continue;
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ret = kmscon_output_use(iter);
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if (ret) {
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printf("Cannot use output %p: %d\n", iter, ret);
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continue;
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}
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glClearColor(1.0, 1.0, 1.0, 1.0);
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glClear(GL_COLOR_BUFFER_BIT);
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glBegin(GL_TRIANGLES);
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glColor4f(0.5, 0.5, 0.5, 1.0);
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glVertex3f(1.0, 1.0, 0.0f);
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glVertex3f(0, 0, 0.0f);
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glVertex3f(1.0, 0, 0.0f);
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glVertex3f(-1.0, -1.0, 0.0f);
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glVertex3f(0, 0, 0.0f);
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glVertex3f(-1.0, 0, 0.0f);
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glEnd();
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ret = kmscon_output_swap(iter);
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if (ret) {
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printf("Cannot swap buffers of output %p: %d\n",
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iter, ret);
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continue;
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}
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printf("Successfully set screen on output %p\n", iter);
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}
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printf("Waiting 5 seconds...\n");
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sleep(5);
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printf("Exiting...\n");
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return 0;
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}
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static int list_outputs(struct kmscon_compositor *comp)
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{
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struct kmscon_output *iter;
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struct kmscon_mode *cur, *mode;
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int i;
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printf("List of Outputs:\n");
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i = 0;
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iter = kmscon_compositor_get_outputs(comp);
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for ( ; iter; iter = kmscon_output_next(iter)) {
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cur = kmscon_output_get_current(iter);
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printf("Output %d:\n", i++);
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printf(" active: %d\n", kmscon_output_is_active(iter));
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printf(" has current: %s\n", cur ? "yes" : "no");
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mode = kmscon_output_get_modes(iter);
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for ( ; mode; mode = kmscon_mode_next(mode)) {
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printf(" Mode '%s':\n", kmscon_mode_get_name(mode));
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printf(" x: %u\n", kmscon_mode_get_width(mode));
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printf(" y: %u\n", kmscon_mode_get_height(mode));
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}
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}
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printf("End of Output list\n");
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return 0;
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}
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int main(int argc, char **argv)
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{
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struct kmscon_compositor *comp;
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int ret;
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printf("Creating compositor...\n");
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ret = kmscon_compositor_new(&comp);
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if (ret) {
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printf("Cannot create compositor: %d\n", ret);
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return abs(ret);
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}
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printf("Wakeing up compositor...\n");
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kmscon_compositor_wake_up(comp);
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kmscon_compositor_use(comp);
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printf("Refreshing compositor...\n");
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ret = kmscon_compositor_refresh(comp);
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if (ret < 0) {
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printf("Cannot refresh compositor: %d\n", ret);
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goto err_unref;
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}
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if (argc < 2) {
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ret = list_outputs(comp);
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if (ret) {
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printf("Cannot list outputs: %d\n", ret);
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goto err_unref;
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}
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} else {
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ret = set_outputs(comp, argc - 1, &argv[1]);
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if (ret) {
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printf("Cannot set outputs: %d\n", ret);
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goto err_unref;
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}
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}
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err_unref:
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kmscon_compositor_unref(comp);
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return abs(ret);
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}
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