diff options
| -rw-r--r-- | examples/meson.build | 5 | ||||
| -rw-r--r-- | examples/output-power-management.c | 134 |
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, ®istry_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; +} |