diff options
Diffstat (limited to 'example/shared.c')
| -rw-r--r-- | example/shared.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/example/shared.c b/example/shared.c new file mode 100644 index 00000000..58266214 --- /dev/null +++ b/example/shared.c @@ -0,0 +1,203 @@ +#define _POSIX_C_SOURCE 199309L +#include <string.h> +#include <stdlib.h> +#include <time.h> +#include <stdlib.h> +#include <stdio.h> +#include <stdbool.h> +#include <xkbcommon/xkbcommon.h> +#include <wayland-server-protocol.h> +#include <wlr/backend.h> +#include <wlr/session.h> +#include <wlr/types.h> +#include "shared.h" + +static void keyboard_key_notify(struct wl_listener *listener, void *data) { + struct wlr_keyboard_key *event = data; + struct keyboard_state *kbstate = wl_container_of(listener, kbstate, key); + uint32_t keycode = event->keycode + 8; + enum wlr_key_state key_state = event->state; + const xkb_keysym_t *syms; + int nsyms = xkb_state_key_get_syms(kbstate->xkb_state, keycode, &syms); + for (int i = 0; i < nsyms; ++i) { + xkb_keysym_t sym = syms[i]; + char name[64]; + int l = xkb_keysym_get_name(sym, name, sizeof(name)); + if (l != -1 && l != sizeof(name)) { + fprintf(stderr, "Key event: %s %s\n", name, + key_state == WLR_KEY_PRESSED ? "pressed" : "released"); + } + if (kbstate->compositor->keyboard_key_cb) { + kbstate->compositor->keyboard_key_cb(kbstate, sym, key_state); + } + } + xkb_state_update_key(kbstate->xkb_state, keycode, + event->state == WLR_KEY_PRESSED ? XKB_KEY_DOWN : XKB_KEY_UP); +} + +static void input_add_notify(struct wl_listener *listener, void *data) { + struct wlr_input_device *device = data; + struct compositor_state *state = wl_container_of(listener, state, input_add); + if (device->type != WLR_INPUT_DEVICE_KEYBOARD) { + return; + } + struct keyboard_state *kbstate = calloc(sizeof(struct keyboard_state), 1); + kbstate->device = device; + kbstate->compositor = state; + wl_list_init(&kbstate->key.link); + kbstate->key.notify = keyboard_key_notify; + wl_signal_add(&device->keyboard->events.key, &kbstate->key); + wl_list_insert(&state->keyboards, &kbstate->link); + + struct xkb_rule_names rules; + memset(&rules, 0, sizeof(rules)); + rules.rules = getenv("XKB_DEFAULT_RULES"); + rules.model = getenv("XKB_DEFAULT_MODEL"); + rules.layout = getenv("XKB_DEFAULT_LAYOUT"); + rules.variant = getenv("XKB_DEFAULT_VARIANT"); + rules.options = getenv("XKB_DEFAULT_OPTIONS"); + struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS); + if (!context) { + fprintf(stderr, "Failed to create XKB context\n"); + exit(1); + } + kbstate->keymap = xkb_map_new_from_names( + context, &rules, XKB_KEYMAP_COMPILE_NO_FLAGS); + if (!kbstate->keymap) { + fprintf(stderr, "Failed to create XKB keymap\n"); + exit(1); + } + xkb_context_unref(context); + kbstate->xkb_state = xkb_state_new(kbstate->keymap); + if (!kbstate->xkb_state) { + fprintf(stderr, "Failed to create XKB state\n"); + exit(1); + } +} + +static void input_remove_notify(struct wl_listener *listener, void *data) { + struct wlr_input_device *device = data; + struct compositor_state *state = wl_container_of(listener, state, input_add); + if (device->type != WLR_INPUT_DEVICE_KEYBOARD) { + return; + } + struct keyboard_state *kbstate = NULL, *_kbstate; + wl_list_for_each(_kbstate, &state->keyboards, link) { + if (_kbstate->device == device) { + kbstate = kbstate; + break; + } + } + if (!kbstate) { + return; // We are unfamiliar with this keyboard + } + wl_list_remove(&kbstate->link); + wl_list_remove(&kbstate->key.link); +} + +static void output_frame_notify(struct wl_listener *listener, void *data) { + struct output_state *output = wl_container_of(listener, output, frame); + struct compositor_state *compositor = output->compositor; + + struct timespec now; + clock_gettime(CLOCK_MONOTONIC, &now); + if (compositor->output_frame_cb) { + compositor->output_frame_cb(output, &now); + } + + output->last_frame = now; + compositor->last_frame = now; +} + +static void output_add_notify(struct wl_listener *listener, void *data) { + struct wlr_output *output = data; + struct compositor_state *state = wl_container_of(listener, state, output_add); + fprintf(stderr, "Output '%s' added\n", output->name); + fprintf(stderr, "%s %s %"PRId32"mm x %"PRId32"mm\n", output->make, output->model, + output->phys_width, output->phys_height); + wlr_output_set_mode(output, output->modes->items[0]); + struct output_state *ostate = calloc(1, sizeof(struct output_state)); + clock_gettime(CLOCK_MONOTONIC, &ostate->last_frame); + ostate->output = output; + ostate->compositor = state; + ostate->frame.notify = output_frame_notify; + wl_list_init(&ostate->frame.link); + wl_signal_add(&output->events.frame, &ostate->frame); + wl_list_insert(&state->outputs, &ostate->link); + if (state->output_add_cb) { + state->output_add_cb(ostate); + } +} + +static void output_remove_notify(struct wl_listener *listener, void *data) { + struct wlr_output *output = data; + struct compositor_state *state = wl_container_of(listener, state, output_remove); + struct output_state *ostate = NULL, *_ostate; + wl_list_for_each(_ostate, &state->outputs, link) { + if (_ostate->output == output) { + ostate = _ostate; + break; + } + } + if (!ostate) { + return; // We are unfamiliar with this output + } + if (state->output_remove_cb) { + state->output_remove_cb(ostate); + } + wl_list_remove(&ostate->link); + wl_list_remove(&ostate->frame.link); +} + +void compositor_init(struct compositor_state *state) { + memset(state, 0, sizeof(struct compositor_state)); + + state->display = wl_display_create(); + state->event_loop = wl_display_get_event_loop(state->display); + state->session = wlr_session_start(state->display); + if (!state->session + || !state->display + || !state->event_loop) { + exit(1); + } + + wl_list_init(&state->keyboards); + wl_list_init(&state->input_add.link); + state->input_add.notify = input_add_notify; + wl_list_init(&state->input_remove.link); + state->input_remove.notify = input_remove_notify; + + wl_list_init(&state->outputs); + wl_list_init(&state->output_add.link); + state->output_add.notify = output_add_notify; + wl_list_init(&state->output_remove.link); + state->output_remove.notify = output_remove_notify; + + struct wlr_backend *wlr = wlr_backend_autocreate( + state->display, state->session); + if (!wlr) { + exit(1); + } + wl_signal_add(&wlr->events.input_add, &state->input_add); + wl_signal_add(&wlr->events.input_remove, &state->input_remove); + wl_signal_add(&wlr->events.output_add, &state->output_add); + wl_signal_add(&wlr->events.output_remove, &state->output_remove); + state->backend = wlr; + + clock_gettime(CLOCK_MONOTONIC, &state->last_frame); +} + +void compositor_run(struct compositor_state *state) { + if (!wlr_backend_init(state->backend)) { + fprintf(stderr, "Failed to initialize backend\n"); + exit(1); + } + + while (!state->exit) { + wl_event_loop_dispatch(state->event_loop, 0); + } + + wlr_backend_destroy(state->backend); + wlr_session_finish(state->session); + wl_display_destroy(state->display); +} |