mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-12-23 10:29:49 +01:00
286 lines
9 KiB
C
286 lines
9 KiB
C
#define _POSIX_C_SOURCE 200112L
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#include <drm_fourcc.h>
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#include <math.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <wayland-server-core.h>
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#include <wlr/backend.h>
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#include <wlr/backend/session.h>
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#include <wlr/render/allocator.h>
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#include <wlr/render/wlr_renderer.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/types/wlr_input_device.h>
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#include <wlr/types/wlr_keyboard.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/types/wlr_touch.h>
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#include <wlr/util/log.h>
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#include <xkbcommon/xkbcommon.h>
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#include "cat.h"
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struct sample_state {
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struct wl_display *display;
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struct wlr_renderer *renderer;
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struct wlr_allocator *allocator;
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struct wlr_texture *cat_texture;
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struct wl_list touch_points;
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struct timespec last_frame;
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struct wl_listener new_output;
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struct wl_listener new_input;
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struct wl_list touch;
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};
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struct touch_point {
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int32_t touch_id;
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double x, y;
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struct wl_list link;
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};
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struct touch_state {
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struct sample_state *sample;
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struct wlr_touch *wlr_touch;
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struct wl_listener destroy;
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struct wl_listener down;
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struct wl_listener up;
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struct wl_listener motion;
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struct wl_list link;
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void *data;
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};
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struct sample_output {
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struct sample_state *sample;
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struct wlr_output *output;
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struct wl_listener frame;
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struct wl_listener destroy;
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};
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struct sample_keyboard {
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struct sample_state *sample;
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struct wlr_keyboard *wlr_keyboard;
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struct wl_listener key;
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struct wl_listener destroy;
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};
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static void output_frame_notify(struct wl_listener *listener, void *data) {
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struct sample_output *sample_output = wl_container_of(listener, sample_output, frame);
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struct sample_state *sample = sample_output->sample;
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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struct wlr_output *wlr_output = sample_output->output;
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int32_t width, height;
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wlr_output_effective_resolution(wlr_output, &width, &height);
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wlr_output_attach_render(wlr_output, NULL);
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wlr_renderer_begin(sample->renderer, wlr_output->width, wlr_output->height);
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wlr_renderer_clear(sample->renderer, (float[]){0.25f, 0.25f, 0.25f, 1});
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struct touch_point *p;
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wl_list_for_each(p, &sample->touch_points, link) {
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int x = (int)(p->x * width) - sample->cat_texture->width / 2;
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int y = (int)(p->y * height) - sample->cat_texture->height / 2;
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wlr_render_texture(sample->renderer, sample->cat_texture,
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wlr_output->transform_matrix, x, y, 1.0f);
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}
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wlr_renderer_end(sample->renderer);
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wlr_output_commit(wlr_output);
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sample->last_frame = now;
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}
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static void touch_down_notify(struct wl_listener *listener, void *data) {
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struct wlr_touch_down_event *event = data;
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struct touch_state *tstate = wl_container_of(listener, tstate, down);
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struct sample_state *sample = tstate->sample;
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struct touch_point *point = calloc(1, sizeof(struct touch_point));
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point->touch_id = event->touch_id;
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point->x = event->x;
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point->y = event->y;
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wl_list_insert(&sample->touch_points, &point->link);
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}
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static void touch_up_notify(struct wl_listener *listener, void *data ) {
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struct wlr_touch_up_event *event = data;
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struct touch_state *tstate = wl_container_of(listener, tstate, up);
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struct sample_state *sample = tstate->sample;
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struct touch_point *point, *tmp;
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wl_list_for_each_safe(point, tmp, &sample->touch_points, link) {
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if (point->touch_id == event->touch_id) {
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wl_list_remove(&point->link);
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break;
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}
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}
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}
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static void touch_motion_notify(struct wl_listener *listener, void *data) {
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struct wlr_touch_motion_event *event = data;
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struct touch_state *tstate = wl_container_of(listener, tstate, motion);
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struct sample_state *sample = tstate->sample;
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struct touch_point *point;
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wl_list_for_each(point, &sample->touch_points, link) {
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if (point->touch_id == event->touch_id) {
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point->x = event->x;
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point->y = event->y;
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break;
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}
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}
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}
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static void touch_destroy_notify(struct wl_listener *listener, void *data) {
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struct touch_state *tstate = wl_container_of(listener, tstate, destroy);
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wl_list_remove(&tstate->link);
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wl_list_remove(&tstate->destroy.link);
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wl_list_remove(&tstate->down.link);
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wl_list_remove(&tstate->up.link);
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wl_list_remove(&tstate->motion.link);
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free(tstate);
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}
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static void output_remove_notify(struct wl_listener *listener, void *data) {
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struct sample_output *sample_output = wl_container_of(listener, sample_output, destroy);
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wl_list_remove(&sample_output->frame.link);
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wl_list_remove(&sample_output->destroy.link);
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free(sample_output);
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}
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static void new_output_notify(struct wl_listener *listener, void *data) {
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struct wlr_output *output = data;
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struct sample_state *sample = wl_container_of(listener, sample, new_output);
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wlr_output_init_render(output, sample->allocator, sample->renderer);
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struct sample_output *sample_output = calloc(1, sizeof(struct sample_output));
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sample_output->output = output;
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sample_output->sample = sample;
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wl_signal_add(&output->events.frame, &sample_output->frame);
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sample_output->frame.notify = output_frame_notify;
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wl_signal_add(&output->events.destroy, &sample_output->destroy);
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sample_output->destroy.notify = output_remove_notify;
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struct wlr_output_mode *mode = wlr_output_preferred_mode(output);
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if (mode != NULL) {
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wlr_output_set_mode(output, mode);
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}
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wlr_output_commit(output);
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}
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static void keyboard_key_notify(struct wl_listener *listener, void *data) {
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struct sample_keyboard *keyboard = wl_container_of(listener, keyboard, key);
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struct sample_state *sample = keyboard->sample;
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struct wlr_keyboard_key_event *event = data;
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uint32_t keycode = event->keycode + 8;
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const xkb_keysym_t *syms;
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int nsyms = xkb_state_key_get_syms(keyboard->wlr_keyboard->xkb_state,
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keycode, &syms);
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for (int i = 0; i < nsyms; i++) {
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xkb_keysym_t sym = syms[i];
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if (sym == XKB_KEY_Escape) {
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wl_display_terminate(sample->display);
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}
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}
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}
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static void keyboard_destroy_notify(struct wl_listener *listener, void *data) {
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struct sample_keyboard *keyboard = wl_container_of(listener, keyboard, destroy);
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wl_list_remove(&keyboard->destroy.link);
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wl_list_remove(&keyboard->key.link);
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free(keyboard);
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}
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static void new_input_notify(struct wl_listener *listener, void *data) {
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struct wlr_input_device *device = data;
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struct sample_state *sample = wl_container_of(listener, sample, new_input);
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switch (device->type) {
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case WLR_INPUT_DEVICE_KEYBOARD:;
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struct sample_keyboard *keyboard = calloc(1, sizeof(struct sample_keyboard));
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keyboard->wlr_keyboard = wlr_keyboard_from_input_device(device);
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keyboard->sample = sample;
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wl_signal_add(&device->events.destroy, &keyboard->destroy);
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keyboard->destroy.notify = keyboard_destroy_notify;
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wl_signal_add(&keyboard->wlr_keyboard->events.key, &keyboard->key);
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keyboard->key.notify = keyboard_key_notify;
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struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
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if (!context) {
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wlr_log(WLR_ERROR, "Failed to create XKB context");
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exit(1);
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}
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struct xkb_keymap *keymap = xkb_keymap_new_from_names(context, NULL,
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XKB_KEYMAP_COMPILE_NO_FLAGS);
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if (!keymap) {
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wlr_log(WLR_ERROR, "Failed to create XKB keymap");
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exit(1);
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}
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wlr_keyboard_set_keymap(keyboard->wlr_keyboard, keymap);
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xkb_keymap_unref(keymap);
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xkb_context_unref(context);
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break;
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case WLR_INPUT_DEVICE_TOUCH:;
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struct touch_state *tstate = calloc(sizeof(struct touch_state), 1);
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tstate->wlr_touch = wlr_touch_from_input_device(device);
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tstate->sample = sample;
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tstate->destroy.notify = touch_destroy_notify;
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wl_signal_add(&device->events.destroy, &tstate->destroy);
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tstate->down.notify = touch_down_notify;
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wl_signal_add(&tstate->wlr_touch->events.down, &tstate->down);
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tstate->motion.notify = touch_motion_notify;
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wl_signal_add(&tstate->wlr_touch->events.motion, &tstate->motion);
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tstate->up.notify = touch_up_notify;
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wl_signal_add(&tstate->wlr_touch->events.up, &tstate->up);
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wl_list_insert(&sample->touch, &tstate->link);
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break;
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default:
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break;
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}
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}
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int main(int argc, char *argv[]) {
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wlr_log_init(WLR_DEBUG, NULL);
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struct wl_display *display = wl_display_create();
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struct sample_state state = {
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.display = display
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};
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wl_list_init(&state.touch_points);
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wl_list_init(&state.touch);
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struct wlr_backend *wlr = wlr_backend_autocreate(display, NULL);
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if (!wlr) {
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exit(1);
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}
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wl_signal_add(&wlr->events.new_output, &state.new_output);
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state.new_output.notify = new_output_notify;
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wl_signal_add(&wlr->events.new_input, &state.new_input);
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state.new_input.notify = new_input_notify;
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clock_gettime(CLOCK_MONOTONIC, &state.last_frame);
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state.renderer = wlr_renderer_autocreate(wlr);
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if (!state.renderer) {
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wlr_log(WLR_ERROR, "Could not start compositor, OOM");
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exit(EXIT_FAILURE);
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}
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state.cat_texture = wlr_texture_from_pixels(state.renderer,
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DRM_FORMAT_ARGB8888, cat_tex.width * 4, cat_tex.width, cat_tex.height,
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cat_tex.pixel_data);
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if (!state.cat_texture) {
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wlr_log(WLR_ERROR, "Could not start compositor, OOM");
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exit(EXIT_FAILURE);
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}
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state.allocator = wlr_allocator_autocreate(wlr, state.renderer);
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if (!wlr_backend_start(wlr)) {
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wlr_log(WLR_ERROR, "Failed to start backend");
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wlr_backend_destroy(wlr);
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exit(1);
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}
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wl_display_run(display);
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wlr_texture_destroy(state.cat_texture);
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wl_display_destroy(display);
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}
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