aboutsummaryrefslogtreecommitdiff
path: root/examples/support/shared.c
diff options
context:
space:
mode:
Diffstat (limited to 'examples/support/shared.c')
-rw-r--r--examples/support/shared.c499
1 files changed, 499 insertions, 0 deletions
diff --git a/examples/support/shared.c b/examples/support/shared.c
new file mode 100644
index 00000000..07614d86
--- /dev/null
+++ b/examples/support/shared.c
@@ -0,0 +1,499 @@
+#define _POSIX_C_SOURCE 200112L
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+#include <time.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <limits.h>
+#include <xkbcommon/xkbcommon.h>
+#include <wayland-server-protocol.h>
+#include <wlr/backend.h>
+#include <wlr/backend/session.h>
+#include <wlr/backend/multi.h>
+#include <wlr/types/wlr_output.h>
+#include <wlr/types/wlr_output_layout.h>
+#include <wlr/types/wlr_input_device.h>
+#include <wlr/util/log.h>
+#include "shared.h"
+
+static void keyboard_key_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_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->device->keyboard->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)) {
+ wlr_log(L_DEBUG, "Key event: %s %s", name,
+ key_state == WLR_KEY_PRESSED ? "pressed" : "released");
+ }
+ if (kbstate->compositor->keyboard_key_cb) {
+ kbstate->compositor->keyboard_key_cb(kbstate, event->keycode, sym,
+ key_state, event->time_msec * 1000);
+ }
+ if (sym == XKB_KEY_Escape) {
+ wl_display_terminate(kbstate->compositor->display);
+ } else if (key_state == WLR_KEY_PRESSED &&
+ sym >= XKB_KEY_XF86Switch_VT_1 &&
+ sym <= XKB_KEY_XF86Switch_VT_12) {
+ if (wlr_backend_is_multi(kbstate->compositor->backend)) {
+ struct wlr_session *session =
+ wlr_multi_get_session(kbstate->compositor->backend);
+ if (session) {
+ wlr_session_change_vt(session, sym - XKB_KEY_XF86Switch_VT_1 + 1);
+ }
+ }
+ }
+ }
+}
+
+static void keyboard_add(struct wlr_input_device *device, struct compositor_state *state) {
+ struct keyboard_state *kbstate = calloc(sizeof(struct keyboard_state), 1);
+ kbstate->device = device;
+ kbstate->compositor = state;
+ 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) {
+ wlr_log(L_ERROR, "Failed to create XKB context");
+ exit(1);
+ }
+ wlr_keyboard_set_keymap(device->keyboard, xkb_map_new_from_names(context,
+ &rules, XKB_KEYMAP_COMPILE_NO_FLAGS));
+ xkb_context_unref(context);
+}
+
+static void pointer_motion_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_pointer_motion *event = data;
+ struct pointer_state *pstate = wl_container_of(listener, pstate, motion);
+ if (pstate->compositor->pointer_motion_cb) {
+ pstate->compositor->pointer_motion_cb(pstate,
+ event->delta_x, event->delta_y);
+ }
+}
+
+static void pointer_motion_absolute_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_pointer_motion_absolute *event = data;
+ struct pointer_state *pstate = wl_container_of(listener, pstate, motion_absolute);
+ if (pstate->compositor->pointer_motion_absolute_cb) {
+ pstate->compositor->pointer_motion_absolute_cb(pstate,
+ event->x_mm, event->y_mm);
+ }
+}
+
+static void pointer_button_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_pointer_button *event = data;
+ struct pointer_state *pstate = wl_container_of(listener, pstate, button);
+ if (pstate->compositor->pointer_button_cb) {
+ pstate->compositor->pointer_button_cb(pstate,
+ event->button, event->state);
+ }
+}
+
+static void pointer_axis_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_pointer_axis *event = data;
+ struct pointer_state *pstate = wl_container_of(listener, pstate, axis);
+ if (pstate->compositor->pointer_axis_cb) {
+ pstate->compositor->pointer_axis_cb(pstate,
+ event->source, event->orientation, event->delta);
+ }
+}
+
+static void pointer_add(struct wlr_input_device *device, struct compositor_state *state) {
+ struct pointer_state *pstate = calloc(sizeof(struct pointer_state), 1);
+ pstate->device = device;
+ pstate->compositor = state;
+ pstate->motion.notify = pointer_motion_notify;
+ pstate->motion_absolute.notify = pointer_motion_absolute_notify;
+ pstate->button.notify = pointer_button_notify;
+ pstate->axis.notify = pointer_axis_notify;
+ wl_signal_add(&device->pointer->events.motion, &pstate->motion);
+ wl_signal_add(&device->pointer->events.motion_absolute, &pstate->motion_absolute);
+ wl_signal_add(&device->pointer->events.button, &pstate->button);
+ wl_signal_add(&device->pointer->events.axis, &pstate->axis);
+ wl_list_insert(&state->pointers, &pstate->link);
+}
+
+static void touch_down_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_touch_down *event = data;
+ struct touch_state *tstate = wl_container_of(listener, tstate, down);
+ if (tstate->compositor->touch_down_cb) {
+ tstate->compositor->touch_down_cb(tstate, event->slot,
+ event->x_mm, event->y_mm, event->width_mm, event->height_mm);
+ }
+}
+
+static void touch_motion_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_touch_motion *event = data;
+ struct touch_state *tstate = wl_container_of(listener, tstate, motion);
+ if (tstate->compositor->touch_motion_cb) {
+ tstate->compositor->touch_motion_cb(tstate, event->slot,
+ event->x_mm, event->y_mm, event->width_mm, event->height_mm);
+ }
+}
+
+static void touch_up_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_touch_up *event = data;
+ struct touch_state *tstate = wl_container_of(listener, tstate, up);
+ if (tstate->compositor->touch_up_cb) {
+ tstate->compositor->touch_up_cb(tstate, event->slot);
+ }
+}
+
+static void touch_cancel_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_touch_cancel *event = data;
+ struct touch_state *tstate = wl_container_of(listener, tstate, cancel);
+ if (tstate->compositor->touch_cancel_cb) {
+ tstate->compositor->touch_cancel_cb(tstate, event->slot);
+ }
+}
+
+static void touch_add(struct wlr_input_device *device, struct compositor_state *state) {
+ struct touch_state *tstate = calloc(sizeof(struct touch_state), 1);
+ tstate->device = device;
+ tstate->compositor = state;
+ tstate->down.notify = touch_down_notify;
+ tstate->motion.notify = touch_motion_notify;
+ tstate->up.notify = touch_up_notify;
+ tstate->cancel.notify = touch_cancel_notify;
+ wl_signal_add(&device->touch->events.down, &tstate->down);
+ wl_signal_add(&device->touch->events.motion, &tstate->motion);
+ wl_signal_add(&device->touch->events.up, &tstate->up);
+ wl_signal_add(&device->touch->events.cancel, &tstate->cancel);
+ wl_list_insert(&state->touch, &tstate->link);
+}
+
+static void tablet_tool_axis_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_tablet_tool_axis *event = data;
+ struct tablet_tool_state *tstate = wl_container_of(listener, tstate, axis);
+ if (tstate->compositor->tool_axis_cb) {
+ tstate->compositor->tool_axis_cb(tstate, event);
+ }
+}
+
+static void tablet_tool_proximity_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_tablet_tool_proximity *event = data;
+ struct tablet_tool_state *tstate = wl_container_of(listener, tstate, proximity);
+ if (tstate->compositor->tool_proximity_cb) {
+ tstate->compositor->tool_proximity_cb(tstate, event->state);
+ }
+}
+
+static void tablet_tool_button_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_tablet_tool_button *event = data;
+ struct tablet_tool_state *tstate = wl_container_of(listener, tstate, button);
+ if (tstate->compositor->tool_button_cb) {
+ tstate->compositor->tool_button_cb(tstate, event->button, event->state);
+ }
+}
+
+static void tablet_tool_add(struct wlr_input_device *device,
+ struct compositor_state *state) {
+ struct tablet_tool_state *tstate = calloc(sizeof(struct tablet_tool_state), 1);
+ tstate->device = device;
+ tstate->compositor = state;
+ tstate->axis.notify = tablet_tool_axis_notify;
+ tstate->proximity.notify = tablet_tool_proximity_notify;
+ //tstate->tip.notify = tablet_tool_tip_notify;
+ tstate->button.notify = tablet_tool_button_notify;
+ wl_signal_add(&device->tablet_tool->events.axis, &tstate->axis);
+ wl_signal_add(&device->tablet_tool->events.proximity, &tstate->proximity);
+ //wl_signal_add(&device->tablet_tool->events.tip, &tstate->tip);
+ wl_signal_add(&device->tablet_tool->events.button, &tstate->button);
+ wl_list_insert(&state->tablet_tools, &tstate->link);
+}
+
+static void tablet_pad_button_notify(struct wl_listener *listener, void *data) {
+ struct wlr_event_tablet_pad_button *event = data;
+ struct tablet_pad_state *pstate = wl_container_of(listener, pstate, button);
+ if (pstate->compositor->pad_button_cb) {
+ pstate->compositor->pad_button_cb(pstate, event->button, event->state);
+ }
+}
+
+static void tablet_pad_add(struct wlr_input_device *device,
+ struct compositor_state *state) {
+ struct tablet_pad_state *pstate = calloc(sizeof(struct tablet_pad_state), 1);
+ pstate->device = device;
+ pstate->compositor = state;
+ pstate->button.notify = tablet_pad_button_notify;
+ wl_signal_add(&device->tablet_pad->events.button, &pstate->button);
+ wl_list_insert(&state->tablet_pads, &pstate->link);
+}
+
+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);
+ switch (device->type) {
+ case WLR_INPUT_DEVICE_KEYBOARD:
+ keyboard_add(device, state);
+ break;
+ case WLR_INPUT_DEVICE_POINTER:
+ pointer_add(device, state);
+ break;
+ case WLR_INPUT_DEVICE_TOUCH:
+ touch_add(device, state);
+ break;
+ case WLR_INPUT_DEVICE_TABLET_TOOL:
+ tablet_tool_add(device, state);
+ break;
+ case WLR_INPUT_DEVICE_TABLET_PAD:
+ tablet_pad_add(device, state);
+ break;
+ default:
+ break;
+ }
+
+ if (state->input_add_cb) {
+ state->input_add_cb(state, device);
+ }
+}
+
+static void keyboard_remove(struct wlr_input_device *device, struct compositor_state *state) {
+ struct keyboard_state *kbstate = NULL, *_kbstate;
+ wl_list_for_each(_kbstate, &state->keyboards, link) {
+ if (_kbstate->device == device) {
+ kbstate = _kbstate;
+ break;
+ }
+ }
+ if (!kbstate) {
+ return;
+ }
+ wl_list_remove(&kbstate->link);
+ wl_list_remove(&kbstate->key.link);
+ free(kbstate);
+}
+
+static void pointer_remove(struct wlr_input_device *device, struct compositor_state *state) {
+ struct pointer_state *pstate = NULL, *_pstate;
+ wl_list_for_each(_pstate, &state->pointers, link) {
+ if (_pstate->device == device) {
+ pstate = _pstate;
+ break;
+ }
+ }
+ if (!pstate) {
+ return;
+ }
+ wl_list_remove(&pstate->link);
+ wl_list_remove(&pstate->motion.link);
+ wl_list_remove(&pstate->motion_absolute.link);
+ wl_list_remove(&pstate->button.link);
+ wl_list_remove(&pstate->axis.link);
+ free(pstate);
+}
+
+static void touch_remove(struct wlr_input_device *device, struct compositor_state *state) {
+ struct touch_state *tstate = NULL, *_tstate;
+ wl_list_for_each(_tstate, &state->touch, link) {
+ if (_tstate->device == device) {
+ tstate = _tstate;
+ break;
+ }
+ }
+ if (!tstate) {
+ return;
+ }
+ wl_list_remove(&tstate->link);
+ wl_list_remove(&tstate->down.link);
+ wl_list_remove(&tstate->motion.link);
+ wl_list_remove(&tstate->up.link);
+ wl_list_remove(&tstate->cancel.link);
+ free(tstate);
+}
+
+static void tablet_tool_remove(struct wlr_input_device *device, struct compositor_state *state) {
+ struct tablet_tool_state *tstate = NULL, *_tstate;
+ wl_list_for_each(_tstate, &state->tablet_tools, link) {
+ if (_tstate->device == device) {
+ tstate = _tstate;
+ break;
+ }
+ }
+ if (!tstate) {
+ return;
+ }
+ wl_list_remove(&tstate->link);
+ wl_list_remove(&tstate->axis.link);
+ wl_list_remove(&tstate->proximity.link);
+ //wl_list_remove(&tstate->tip.link);
+ wl_list_remove(&tstate->button.link);
+ free(tstate);
+}
+
+static void tablet_pad_remove(struct wlr_input_device *device, struct compositor_state *state) {
+ struct tablet_pad_state *pstate = NULL, *_pstate;
+ wl_list_for_each(_pstate, &state->tablet_pads, link) {
+ if (_pstate->device ==device) {
+ pstate = _pstate;
+ break;
+ }
+ }
+ if (!pstate) {
+ return;
+ }
+ wl_list_remove(&pstate->button.link);
+ free(pstate);
+}
+
+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_remove);
+
+ if (state->input_remove_cb) {
+ state->input_remove_cb(state, device);
+ }
+
+ switch (device->type) {
+ case WLR_INPUT_DEVICE_KEYBOARD:
+ keyboard_remove(device, state);
+ break;
+ case WLR_INPUT_DEVICE_POINTER:
+ pointer_remove(device, state);
+ break;
+ case WLR_INPUT_DEVICE_TOUCH:
+ touch_remove(device, state);
+ break;
+ case WLR_INPUT_DEVICE_TABLET_TOOL:
+ tablet_tool_remove(device, state);
+ break;
+ case WLR_INPUT_DEVICE_TABLET_PAD:
+ tablet_pad_remove(device, state);
+ break;
+ default:
+ break;
+ }
+}
+
+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_resolution_notify(struct wl_listener *listener, void *data) {
+ struct output_state *output = wl_container_of(listener, output, resolution);
+ struct compositor_state *compositor = output->compositor;
+
+ if (compositor->output_resolution_cb) {
+ compositor->output_resolution_cb(compositor, output);
+ }
+}
+
+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);
+ wlr_log(L_DEBUG, "Output '%s' added", output->name);
+ wlr_log(L_DEBUG, "%s %s %"PRId32"mm x %"PRId32"mm", output->make, output->model,
+ output->phys_width, output->phys_height);
+ if (wl_list_length(&output->modes) > 0) {
+ struct wlr_output_mode *mode;
+ mode = wl_container_of((&output->modes)->prev, mode, link);
+ wlr_output_set_mode(output, mode);
+ }
+ 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;
+ ostate->resolution.notify = output_resolution_notify;
+ wl_signal_add(&output->events.frame, &ostate->frame);
+ wl_signal_add(&output->events.resolution, &ostate->resolution);
+ 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);
+ wl_list_remove(&ostate->resolution.link);
+ free(ostate);
+}
+
+void compositor_init(struct compositor_state *state) {
+ state->display = wl_display_create();
+ state->event_loop = wl_display_get_event_loop(state->display);
+
+ wl_list_init(&state->keyboards);
+ wl_list_init(&state->pointers);
+ wl_list_init(&state->touch);
+ wl_list_init(&state->tablet_tools);
+ wl_list_init(&state->tablet_pads);
+ state->input_add.notify = input_add_notify;
+ state->input_remove.notify = input_remove_notify;
+
+ wl_list_init(&state->outputs);
+ state->output_add.notify = output_add_notify;
+ state->output_remove.notify = output_remove_notify;
+
+ struct wlr_backend *wlr = wlr_backend_autocreate(state->display);
+ 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);
+
+ const char *socket = wl_display_add_socket_auto(state->display);
+ if (!socket) {
+ wlr_log_errno(L_ERROR, "Unable to open wayland socket");
+ wlr_backend_destroy(wlr);
+ exit(1);
+ }
+
+ wlr_log(L_INFO, "Running compositor on wayland display '%s'", socket);
+ setenv("_WAYLAND_DISPLAY", socket, true);
+}
+
+void compositor_fini(struct compositor_state *state) {
+ wlr_backend_destroy(state->backend);
+ wl_display_destroy(state->display);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-02 12:37:43 +0000