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-rw-r--r--examples/meson.build5
-rw-r--r--examples/output-power-management.c134
2 files changed, 139 insertions, 0 deletions
diff --git a/examples/meson.build b/examples/meson.build
index c52ef57c..b7b33ff6 100644
--- a/examples/meson.build
+++ b/examples/meson.build
@@ -81,6 +81,11 @@ clients = {
'dep': [wayland_cursor, math],
'proto': ['wlr-gamma-control-unstable-v1'],
},
+ 'output-power-management': {
+ 'src': 'output-power-management.c',
+ 'dep': [wayland_client, wlroots],
+ 'proto': ['wlr-output-power-management-unstable-v1'],
+ },
'pointer-constraints': {
'src': 'pointer-constraints.c',
'dep': wlroots,
diff --git a/examples/output-power-management.c b/examples/output-power-management.c
new file mode 100644
index 00000000..19bc8271
--- /dev/null
+++ b/examples/output-power-management.c
@@ -0,0 +1,134 @@
+#define _POSIX_C_SOURCE 200809L
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <wayland-client-protocol.h>
+#include <wayland-client.h>
+#include "wlr-output-power-management-unstable-v1-client-protocol.h"
+
+struct output {
+ struct wl_output *wl_output;
+ struct zwlr_output_power_v1 *output_power;
+ struct wl_list link;
+};
+
+static struct wl_list outputs;
+static struct zwlr_output_power_manager_v1 *output_power_manager = NULL;
+
+static void output_power_handle_mode(void *data,
+ struct zwlr_output_power_v1 *output_power,
+ enum zwlr_output_power_v1_mode mode) {
+ struct output *output = data;
+
+ switch (mode) {
+ case ZWLR_OUTPUT_POWER_V1_MODE_OFF:
+ printf("Output %p disabled\n", output);
+ break;
+ case ZWLR_OUTPUT_POWER_V1_MODE_ON:
+ printf("Output %p enabled\n", output);
+ break;
+ }
+}
+
+static void output_power_handle_failed(void *data,
+ struct zwlr_output_power_v1 *output_power) {
+ fprintf(stderr, "failed to set output power mode\n");
+ exit(EXIT_FAILURE);
+}
+
+static const struct zwlr_output_power_v1_listener output_power_listener = {
+ .mode = output_power_handle_mode,
+ .failed = output_power_handle_failed,
+};
+
+static void registry_handle_global(void *data, struct wl_registry *registry,
+ uint32_t name, const char *interface, uint32_t version) {
+ if (strcmp(interface, wl_output_interface.name) == 0) {
+ struct output *output = calloc(1, sizeof(struct output));
+ output->wl_output = wl_registry_bind(registry, name,
+ &wl_output_interface, 1);
+ wl_list_insert(&outputs, &output->link);
+ } else if (strcmp(interface,
+ zwlr_output_power_manager_v1_interface.name) == 0) {
+ output_power_manager = wl_registry_bind(registry, name,
+ &zwlr_output_power_manager_v1_interface, 1);
+ }
+}
+
+static void registry_handle_global_remove(void *data,
+ struct wl_registry *registry, uint32_t name) {
+ // Who cares?
+}
+
+static const struct wl_registry_listener registry_listener = {
+ .global = registry_handle_global,
+ .global_remove = registry_handle_global_remove,
+};
+
+static const char usage[] = "usage: output-power-management [options...]\n"
+ " -h: show this help message\n"
+ " -e: turn outputs on\n"
+ " -d: turn outputs off\n";
+
+int main(int argc, char *argv[]) {
+ wl_list_init(&outputs);
+
+ int opt;
+ enum zwlr_output_power_v1_mode mode =
+ ZWLR_OUTPUT_POWER_V1_MODE_ON;
+ while ((opt = getopt(argc, argv, "edh")) != -1) {
+ switch (opt) {
+ case 'e':
+ mode = ZWLR_OUTPUT_POWER_V1_MODE_ON;
+ break;
+ case 'd':
+ mode = ZWLR_OUTPUT_POWER_V1_MODE_OFF;
+ break;
+ case 'h':
+ default:
+ fprintf(stderr, usage);
+ return opt == 'h' ? EXIT_SUCCESS : EXIT_FAILURE;
+ }
+ }
+
+ struct wl_display *display = wl_display_connect(NULL);
+ if (display == NULL) {
+ fprintf(stderr, "failed to create display\n");
+ return -1;
+ }
+
+ struct wl_registry *registry = wl_display_get_registry(display);
+ wl_registry_add_listener(registry, &registry_listener, NULL);
+ wl_display_dispatch(display);
+ wl_display_roundtrip(display);
+
+ if (output_power_manager == NULL) {
+ fprintf(stderr,
+ "compositor doesn't support wlr-output-power-managment-unstable-v1\n");
+ return EXIT_FAILURE;
+ }
+
+ struct output *output;
+ wl_list_for_each(output, &outputs, link) {
+ output->output_power = zwlr_output_power_manager_v1_get_output_power(
+ output_power_manager, output->wl_output);
+ zwlr_output_power_v1_add_listener(output->output_power,
+ &output_power_listener, output);
+ }
+ wl_display_roundtrip(display);
+
+ wl_list_for_each(output, &outputs, link) {
+ zwlr_output_power_v1_set_mode(output->output_power,
+ mode);
+ }
+
+ while (wl_display_dispatch(display) != -1) {
+ // nothing to see here, please move along
+ }
+
+ return EXIT_SUCCESS;
+}