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examples/multi-pointer: drop

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We already have another very similar example which demonstrates
wlr_cursor: "pointer".
master
Simon Ser 2 years ago committed by Alexander Orzechowski
parent 45ca284eee
commit c5f4df6c96
2 changed files with 0 additions and 330 deletions
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3
examples/meson.build
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@ -40,9 +40,6 @@ compositors = {
'rotation': {
'src': ['rotation.c', 'cat.c'],
},
'multi-pointer': {
'src': 'multi-pointer.c',
},
'output-layout': {
'src': ['output-layout.c', 'cat.c'],
},

327
examples/multi-pointer.c
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@ -1,327 +0,0 @@
#define _POSIX_C_SOURCE 200112L
#include <assert.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <wayland-server-core.h>
#include <wlr/backend.h>
#include <wlr/backend/session.h>
#include <wlr/render/allocator.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_keyboard.h>
#include <wlr/types/wlr_matrix.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_pointer.h>
#include <wlr/util/log.h>
#include <wlr/xcursor.h>
#include <xkbcommon/xkbcommon.h>
struct sample_state {
struct wl_display *display;
struct wlr_xcursor *xcursor;
struct wlr_renderer *renderer;
struct wlr_allocator *allocator;
float default_color[4];
float clear_color[4];
struct wlr_output_layout *layout;
struct wl_list cursors; // sample_cursor::link
struct wl_list pointers; // sample_pointer::link
struct wl_list outputs; // sample_output::link
struct timespec last_frame;
struct wl_listener new_output;
struct wl_listener new_input;
};
struct sample_cursor {
struct sample_state *sample;
struct wlr_input_device *device;
struct wlr_cursor *cursor;
struct wl_list link;
struct wl_listener cursor_motion;
struct wl_listener cursor_motion_absolute;
struct wl_listener cursor_button;
struct wl_listener cursor_axis;
struct wl_listener destroy;
};
struct sample_pointer {
struct wlr_input_device *device;
struct wl_list link;
};
struct sample_output {
struct sample_state *sample;
struct wlr_output *output;
struct wl_listener frame;
struct wl_listener destroy;
struct wl_list link;
};
struct sample_keyboard {
struct sample_state *sample;
struct wlr_keyboard *wlr_keyboard;
struct wl_listener key;
struct wl_listener destroy;
};
static void configure_cursor(struct wlr_cursor *cursor, struct wlr_input_device *device,
struct sample_state *sample) {
struct sample_output *output;
wlr_log(WLR_INFO, "Configuring cursor %p for device %p", cursor, device);
// reset mappings
wlr_cursor_map_to_output(cursor, NULL);
wlr_cursor_detach_input_device(cursor, device);
wlr_cursor_map_input_to_output(cursor, device, NULL);
wlr_cursor_attach_input_device(cursor, device);
// configure device to output mappings
wl_list_for_each(output, &sample->outputs, link) {
wlr_cursor_map_to_output(cursor, output->output);
wlr_cursor_map_input_to_output(cursor, device, output->output);
}
}
static void output_frame_notify(struct wl_listener *listener, void *data) {
struct sample_output *output = wl_container_of(listener, output, frame);
struct sample_state *sample = output->sample;
struct wlr_output *wlr_output = output->output;
struct wlr_renderer *renderer = sample->renderer;
wlr_output_attach_render(wlr_output, NULL);
wlr_renderer_begin(renderer, wlr_output->width, wlr_output->height);
wlr_renderer_clear(renderer, sample->clear_color);
wlr_output_render_software_cursors(wlr_output, NULL);
wlr_renderer_end(renderer);
wlr_output_commit(wlr_output);
}
static void handle_cursor_motion(struct wl_listener *listener, void *data) {
struct sample_cursor *cursor =
wl_container_of(listener, cursor, cursor_motion);
struct wlr_pointer_motion_event *event = data;
wlr_cursor_move(cursor->cursor, &event->pointer->base, event->delta_x,
event->delta_y);
}
static void handle_cursor_motion_absolute(struct wl_listener *listener,
void *data) {
struct sample_cursor *cursor =
wl_container_of(listener, cursor, cursor_motion_absolute);
struct wlr_pointer_motion_absolute_event *event = data;
wlr_cursor_warp_absolute(cursor->cursor, &event->pointer->base, event->x,
event->y);
}
static void cursor_destroy(struct sample_cursor *cursor) {
wl_list_remove(&cursor->link);
wl_list_remove(&cursor->cursor_motion.link);
wl_list_remove(&cursor->cursor_motion_absolute.link);
wlr_cursor_destroy(cursor->cursor);
free(cursor);
}
static void output_remove_notify(struct wl_listener *listener, void *data) {
struct sample_output *sample_output = wl_container_of(listener, sample_output, destroy);
struct sample_state *sample = sample_output->sample;
wl_list_remove(&sample_output->frame.link);
wl_list_remove(&sample_output->destroy.link);
wl_list_remove(&sample_output->link);
free(sample_output);
struct sample_cursor *cursor;
wl_list_for_each(cursor, &sample->cursors, link) {
configure_cursor(cursor->cursor, cursor->device, sample);
}
}
static void new_output_notify(struct wl_listener *listener, void *data) {
struct wlr_output *output = data;
struct sample_state *sample = wl_container_of(listener, sample, new_output);
wlr_output_init_render(output, sample->allocator, sample->renderer);
struct sample_output *sample_output = calloc(1, sizeof(struct sample_output));
sample_output->output = output;
sample_output->sample = sample;
wl_signal_add(&output->events.frame, &sample_output->frame);
sample_output->frame.notify = output_frame_notify;
wl_signal_add(&output->events.destroy, &sample_output->destroy);
sample_output->destroy.notify = output_remove_notify;
wlr_output_layout_add_auto(sample->layout, output);
struct sample_cursor *cursor;
wl_list_for_each(cursor, &sample->cursors, link) {
configure_cursor(cursor->cursor, cursor->device, sample);
struct wlr_xcursor_image *image = sample->xcursor->images[0];
wlr_cursor_set_image(cursor->cursor, image->buffer, image->width * 4,
image->width, image->height, image->hotspot_x, image->hotspot_y, 0);
wlr_cursor_warp(cursor->cursor, NULL, cursor->cursor->x,
cursor->cursor->y);
}
wl_list_insert(&sample->outputs, &sample_output->link);
struct wlr_output_mode *mode = wlr_output_preferred_mode(output);
if (mode != NULL) {
wlr_output_set_mode(output, mode);
}
wlr_output_commit(output);
}
static void keyboard_key_notify(struct wl_listener *listener, void *data) {
struct sample_keyboard *keyboard = wl_container_of(listener, keyboard, key);
struct sample_state *sample = keyboard->sample;
struct wlr_keyboard_key_event *event = data;
uint32_t keycode = event->keycode + 8;
const xkb_keysym_t *syms;
int nsyms = xkb_state_key_get_syms(keyboard->wlr_keyboard->xkb_state,
keycode, &syms);
for (int i = 0; i < nsyms; i++) {
xkb_keysym_t sym = syms[i];
if (sym == XKB_KEY_Escape) {
wl_display_terminate(sample->display);
}
}
}
static void keyboard_destroy_notify(struct wl_listener *listener, void *data) {
struct sample_keyboard *keyboard = wl_container_of(listener, keyboard, destroy);
wl_list_remove(&keyboard->destroy.link);
wl_list_remove(&keyboard->key.link);
free(keyboard);
}
static void new_input_notify(struct wl_listener *listener, void *data) {
struct wlr_input_device *device = data;
struct sample_state *sample = wl_container_of(listener, sample, new_input);
switch (device->type) {
case WLR_INPUT_DEVICE_KEYBOARD:;
struct sample_keyboard *keyboard = calloc(1, sizeof(struct sample_keyboard));
keyboard->wlr_keyboard = wlr_keyboard_from_input_device(device);
keyboard->sample = sample;
wl_signal_add(&device->events.destroy, &keyboard->destroy);
keyboard->destroy.notify = keyboard_destroy_notify;
wl_signal_add(&keyboard->wlr_keyboard->events.key, &keyboard->key);
keyboard->key.notify = keyboard_key_notify;
struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
if (!context) {
wlr_log(WLR_ERROR, "Failed to create XKB context");
exit(1);
}
struct xkb_keymap *keymap = xkb_keymap_new_from_names(context, NULL,
XKB_KEYMAP_COMPILE_NO_FLAGS);
if (!keymap) {
wlr_log(WLR_ERROR, "Failed to create XKB keymap");
exit(1);
}
wlr_keyboard_set_keymap(keyboard->wlr_keyboard, keymap);
xkb_keymap_unref(keymap);
xkb_context_unref(context);
break;
case WLR_INPUT_DEVICE_POINTER:;
struct sample_cursor *cursor = calloc(1, sizeof(struct sample_cursor));
struct sample_pointer *pointer = calloc(1, sizeof(struct sample_pointer));
pointer->device = device;
cursor->sample = sample;
cursor->device = device;
cursor->cursor = wlr_cursor_create();
wlr_cursor_attach_output_layout(cursor->cursor, sample->layout);
wl_signal_add(&cursor->cursor->events.motion, &cursor->cursor_motion);
cursor->cursor_motion.notify = handle_cursor_motion;
wl_signal_add(&cursor->cursor->events.motion_absolute,
&cursor->cursor_motion_absolute);
cursor->cursor_motion_absolute.notify = handle_cursor_motion_absolute;
wlr_cursor_attach_input_device(cursor->cursor, device);
configure_cursor(cursor->cursor, device, sample);
struct wlr_xcursor_image *image = sample->xcursor->images[0];
wlr_cursor_set_image(cursor->cursor, image->buffer, image->width * 4,
image->width, image->height, image->hotspot_x, image->hotspot_y, 0);
wl_list_insert(&sample->cursors, &cursor->link);
wl_list_insert(&sample->pointers, &pointer->link);
break;
default:
break;
}
}
int main(int argc, char *argv[]) {
wlr_log_init(WLR_DEBUG, NULL);
struct wl_display *display = wl_display_create();
struct sample_state state = {
.default_color = { 0.25f, 0.25f, 0.25f, 1 },
.clear_color = { 0.25f, 0.25f, 0.25f, 1 },
.display = display,
};
struct wlr_backend *wlr = wlr_backend_autocreate(display, NULL);
if (!wlr) {
exit(1);
}
state.renderer = wlr_renderer_autocreate(wlr);
state.allocator = wlr_allocator_autocreate(wlr, state.renderer);
wl_list_init(&state.cursors);
wl_list_init(&state.pointers);
wl_list_init(&state.outputs);
state.layout = wlr_output_layout_create();
wl_signal_add(&wlr->events.new_output, &state.new_output);
state.new_output.notify = new_output_notify;
wl_signal_add(&wlr->events.new_input, &state.new_input);
state.new_input.notify = new_input_notify;
clock_gettime(CLOCK_MONOTONIC, &state.last_frame);
struct wlr_xcursor_theme *theme = wlr_xcursor_theme_load(NULL, 16);
if (!theme) {
wlr_log(WLR_ERROR, "Failed to load cursor theme");
return 1;
}
state.xcursor = wlr_xcursor_theme_get_cursor(theme, "default");
if (!state.xcursor) {
wlr_log(WLR_ERROR, "Failed to load default cursor");
return 1;
}
if (!wlr_backend_start(wlr)) {
wlr_log(WLR_ERROR, "Failed to start backend");
wlr_backend_destroy(wlr);
exit(1);
}
wl_display_run(display);
wl_display_destroy(display);
struct sample_cursor *cursor, *tmp_cursor;
wl_list_for_each_safe(cursor, tmp_cursor, &state.cursors, link) {
cursor_destroy(cursor);
}
struct sample_pointer *pointer, *tmp_pointer;
wl_list_for_each_safe(pointer, tmp_pointer, &state.pointers, link) {
free(pointer);
}
wlr_xcursor_theme_destroy(theme);
wlr_output_layout_destroy(state.layout);
}
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