mirror of
https://gitlab.freedesktop.org/wlroots/wlroots.git
synced 2024-11-21 14:42:25 +00:00
examples/multi-pointer: drop
We already have another very similar example which demonstrates wlr_cursor: "pointer".
This commit is contained in:
Simon Ser
Alexander Orzechowski
parent
45ca284eee
commit
c5f4df6c96
@ -40,9 +40,6 @@ compositors = {
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'rotation': {
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'src': ['rotation.c', 'cat.c'],
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},
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'multi-pointer': {
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'src': 'multi-pointer.c',
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},
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'output-layout': {
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'src': ['output-layout.c', 'cat.c'],
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},
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@ -1,327 +0,0 @@
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#define _POSIX_C_SOURCE 200112L
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#include <assert.h>
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#include <math.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_cursor.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_output_layout.h>
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#include <wlr/types/wlr_pointer.h>
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#include <wlr/util/log.h>
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#include <wlr/xcursor.h>
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#include <xkbcommon/xkbcommon.h>
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struct sample_state {
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struct wl_display *display;
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struct wlr_xcursor *xcursor;
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struct wlr_renderer *renderer;
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struct wlr_allocator *allocator;
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float default_color[4];
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float clear_color[4];
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struct wlr_output_layout *layout;
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struct wl_list cursors; // sample_cursor::link
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struct wl_list pointers; // sample_pointer::link
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struct wl_list outputs; // sample_output::link
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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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};
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struct sample_cursor {
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struct sample_state *sample;
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struct wlr_input_device *device;
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struct wlr_cursor *cursor;
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struct wl_list link;
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struct wl_listener cursor_motion;
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struct wl_listener cursor_motion_absolute;
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struct wl_listener cursor_button;
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struct wl_listener cursor_axis;
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struct wl_listener destroy;
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};
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struct sample_pointer {
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struct wlr_input_device *device;
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struct wl_list link;
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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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struct wl_list link;
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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 configure_cursor(struct wlr_cursor *cursor, struct wlr_input_device *device,
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struct sample_state *sample) {
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struct sample_output *output;
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wlr_log(WLR_INFO, "Configuring cursor %p for device %p", cursor, device);
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// reset mappings
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wlr_cursor_map_to_output(cursor, NULL);
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wlr_cursor_detach_input_device(cursor, device);
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wlr_cursor_map_input_to_output(cursor, device, NULL);
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wlr_cursor_attach_input_device(cursor, device);
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// configure device to output mappings
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wl_list_for_each(output, &sample->outputs, link) {
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wlr_cursor_map_to_output(cursor, output->output);
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wlr_cursor_map_input_to_output(cursor, device, output->output);
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}
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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 *output = wl_container_of(listener, output, frame);
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struct sample_state *sample = output->sample;
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struct wlr_output *wlr_output = output->output;
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struct wlr_renderer *renderer = sample->renderer;
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wlr_output_attach_render(wlr_output, NULL);
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wlr_renderer_begin(renderer, wlr_output->width, wlr_output->height);
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wlr_renderer_clear(renderer, sample->clear_color);
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wlr_output_render_software_cursors(wlr_output, NULL);
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wlr_renderer_end(renderer);
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wlr_output_commit(wlr_output);
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}
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static void handle_cursor_motion(struct wl_listener *listener, void *data) {
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struct sample_cursor *cursor =
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wl_container_of(listener, cursor, cursor_motion);
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struct wlr_pointer_motion_event *event = data;
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wlr_cursor_move(cursor->cursor, &event->pointer->base, event->delta_x,
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event->delta_y);
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}
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static void handle_cursor_motion_absolute(struct wl_listener *listener,
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void *data) {
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struct sample_cursor *cursor =
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wl_container_of(listener, cursor, cursor_motion_absolute);
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struct wlr_pointer_motion_absolute_event *event = data;
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wlr_cursor_warp_absolute(cursor->cursor, &event->pointer->base, event->x,
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event->y);
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}
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static void cursor_destroy(struct sample_cursor *cursor) {
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wl_list_remove(&cursor->link);
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wl_list_remove(&cursor->cursor_motion.link);
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wl_list_remove(&cursor->cursor_motion_absolute.link);
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wlr_cursor_destroy(cursor->cursor);
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free(cursor);
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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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struct sample_state *sample = sample_output->sample;
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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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wl_list_remove(&sample_output->link);
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free(sample_output);
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struct sample_cursor *cursor;
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wl_list_for_each(cursor, &sample->cursors, link) {
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configure_cursor(cursor->cursor, cursor->device, sample);
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}
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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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wlr_output_layout_add_auto(sample->layout, output);
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struct sample_cursor *cursor;
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wl_list_for_each(cursor, &sample->cursors, link) {
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configure_cursor(cursor->cursor, cursor->device, sample);
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struct wlr_xcursor_image *image = sample->xcursor->images[0];
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wlr_cursor_set_image(cursor->cursor, image->buffer, image->width * 4,
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image->width, image->height, image->hotspot_x, image->hotspot_y, 0);
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wlr_cursor_warp(cursor->cursor, NULL, cursor->cursor->x,
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cursor->cursor->y);
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}
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wl_list_insert(&sample->outputs, &sample_output->link);
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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_POINTER:;
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struct sample_cursor *cursor = calloc(1, sizeof(struct sample_cursor));
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struct sample_pointer *pointer = calloc(1, sizeof(struct sample_pointer));
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pointer->device = device;
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cursor->sample = sample;
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cursor->device = device;
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cursor->cursor = wlr_cursor_create();
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wlr_cursor_attach_output_layout(cursor->cursor, sample->layout);
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wl_signal_add(&cursor->cursor->events.motion, &cursor->cursor_motion);
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cursor->cursor_motion.notify = handle_cursor_motion;
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wl_signal_add(&cursor->cursor->events.motion_absolute,
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&cursor->cursor_motion_absolute);
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cursor->cursor_motion_absolute.notify = handle_cursor_motion_absolute;
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wlr_cursor_attach_input_device(cursor->cursor, device);
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configure_cursor(cursor->cursor, device, sample);
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struct wlr_xcursor_image *image = sample->xcursor->images[0];
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wlr_cursor_set_image(cursor->cursor, image->buffer, image->width * 4,
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image->width, image->height, image->hotspot_x, image->hotspot_y, 0);
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wl_list_insert(&sample->cursors, &cursor->link);
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wl_list_insert(&sample->pointers, &pointer->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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.default_color = { 0.25f, 0.25f, 0.25f, 1 },
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.clear_color = { 0.25f, 0.25f, 0.25f, 1 },
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.display = display,
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};
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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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state.renderer = wlr_renderer_autocreate(wlr);
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state.allocator = wlr_allocator_autocreate(wlr, state.renderer);
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wl_list_init(&state.cursors);
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wl_list_init(&state.pointers);
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wl_list_init(&state.outputs);
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state.layout = wlr_output_layout_create();
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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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struct wlr_xcursor_theme *theme = wlr_xcursor_theme_load(NULL, 16);
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if (!theme) {
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wlr_log(WLR_ERROR, "Failed to load cursor theme");
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return 1;
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}
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state.xcursor = wlr_xcursor_theme_get_cursor(theme, "default");
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if (!state.xcursor) {
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wlr_log(WLR_ERROR, "Failed to load default cursor");
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return 1;
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}
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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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wl_display_destroy(display);
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struct sample_cursor *cursor, *tmp_cursor;
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wl_list_for_each_safe(cursor, tmp_cursor, &state.cursors, link) {
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cursor_destroy(cursor);
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}
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struct sample_pointer *pointer, *tmp_pointer;
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wl_list_for_each_safe(pointer, tmp_pointer, &state.pointers, link) {
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free(pointer);
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}
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wlr_xcursor_theme_destroy(theme);
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wlr_output_layout_destroy(state.layout);
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}
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