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Merge pull request #932 from Timidger/standalone-examples 

Made examples standalone
This commit is contained in:
emersion 2018-05-11 08:10:32 +01:00 committed by GitHub
parent 8fd58ce725 9a1d0e42d2
commit d6f76bd3f3
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GPG Key ID: 4AEE18F83AFDEB23
17 changed files with 1230 additions and 1784 deletions
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0
examples/support/cat.c → examples/cat.c
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0
examples/support/cat.h → examples/cat.h
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43
examples/meson.build
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@ -1,53 +1,30 @@
lib_shared = static_library(
'shared',
['support/shared.c', 'support/cat.c', 'support/ini.c', 'support/config.c'],
dependencies: wlroots,
include_directories: include_directories('support')
)
threads = dependency('threads') threads = dependency('threads')
wayland_cursor = dependency('wayland-cursor') wayland_cursor = dependency('wayland-cursor')
executable('simple', 'simple.c', dependencies: wlroots, link_with: lib_shared) executable('simple', 'simple.c', dependencies: wlroots)
executable('pointer', 'pointer.c', dependencies: wlroots, link_with: lib_shared) executable('pointer', 'pointer.c', dependencies: wlroots)
executable('touch', 'touch.c', dependencies: wlroots, link_with: lib_shared) executable('touch', 'touch.c', 'cat.c', dependencies: wlroots)
executable('tablet', 'tablet.c', dependencies: wlroots, link_with: lib_shared) executable('tablet', 'tablet.c', dependencies: wlroots)
executable('multi-pointer', 'multi-pointer.c', dependencies: wlroots, executable('rotation', 'rotation.c', 'cat.c', dependencies: wlroots)
link_with: lib_shared) executable('multi-pointer', 'multi-pointer.c', dependencies: wlroots)
executable('output-layout', 'output-layout.c', 'cat.c', dependencies: wlroots)
executable(
'rotation',
'rotation.c',
dependencies: wlroots,
link_with: lib_shared,
)
executable(
'output-layout',
'output-layout.c',
dependencies: wlroots,
link_with: lib_shared,
)
executable( executable(
'screenshot', 'screenshot',
'screenshot.c', 'screenshot.c',
dependencies: [wayland_client, wlr_protos, wlroots], dependencies: [wayland_client, wlr_protos, wlroots]
link_with: lib_shared,
) )
executable( executable(
'idle', 'idle',
'idle.c', 'idle.c',
dependencies: [wayland_client, wlr_protos, wlroots, threads], dependencies: [wayland_client, wlr_protos, wlroots, threads]
link_with: lib_shared,
) )
executable( executable(
'idle-inhibit', 'idle-inhibit',
'idle-inhibit.c', 'idle-inhibit.c',
dependencies: [wayland_client, wlr_protos, wlroots, threads], dependencies: [wayland_client, wlr_protos, wlroots, threads]
link_with: lib_shared,
) )
executable( executable(

323
examples/multi-pointer.c
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@ -1,4 +1,4 @@
#define _POSIX_C_SOURCE 199309L #define _POSIX_C_SOURCE 200112L
#define _XOPEN_SOURCE 500 #define _XOPEN_SOURCE 500
#include <assert.h> #include <assert.h>
#include <GLES2/gl2.h> #include <GLES2/gl2.h>
@ -22,14 +22,23 @@
#include <wlr/util/log.h> #include <wlr/util/log.h>
#include <wlr/xcursor.h> #include <wlr/xcursor.h>
#include <xkbcommon/xkbcommon.h> #include <xkbcommon/xkbcommon.h>
#include "support/cat.h"
#include "support/config.h"
#include "support/shared.h"
struct sample_state; struct sample_state {
struct wl_display *display;
struct wlr_xcursor *xcursor;
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_cursor {
struct sample_state *state; struct sample_state *sample;
struct wlr_input_device *device; struct wlr_input_device *device;
struct wlr_cursor *cursor; struct wlr_cursor *cursor;
struct wl_list link; struct wl_list link;
@ -38,22 +47,52 @@ struct sample_cursor {
struct wl_listener cursor_motion_absolute; struct wl_listener cursor_motion_absolute;
struct wl_listener cursor_button; struct wl_listener cursor_button;
struct wl_listener cursor_axis; struct wl_listener cursor_axis;
struct wl_listener destroy;
}; };
struct sample_state { struct sample_pointer {
struct compositor_state *compositor; struct wlr_input_device *device;
struct example_config *config; struct wl_list link;
struct wlr_xcursor *xcursor;
float default_color[4];
float clear_color[4];
struct wlr_output_layout *layout;
struct wl_list cursors; // sample_cursor::link
}; };
static void handle_output_frame(struct output_state *output, struct sample_output {
struct timespec *ts) { struct sample_state *sample;
struct compositor_state *state = output->compositor; struct wlr_output *output;
struct sample_state *sample = state->data; struct wl_listener frame;
struct wl_listener destroy;
struct wl_list link;
};
struct sample_keyboard {
struct sample_state *sample;
struct wlr_input_device *device;
struct wl_listener key;
struct wl_listener destroy;
};
void configure_cursor(struct wlr_cursor *cursor, struct wlr_input_device *device,
struct sample_state *sample) {
struct sample_output *output;
wlr_log(L_ERROR, "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);
}
}
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_output *wlr_output = output->output;
wlr_output_make_current(wlr_output, NULL); wlr_output_make_current(wlr_output, NULL);
@ -65,46 +104,6 @@ static void handle_output_frame(struct output_state *output,
wlr_output_swap_buffers(wlr_output, NULL, NULL); wlr_output_swap_buffers(wlr_output, NULL, NULL);
} }
static void handle_output_add(struct output_state *ostate) {
struct sample_state *sample = ostate->compositor->data;
struct output_config *o_config =
example_config_get_output(sample->config, ostate->output);
if (o_config) {
wlr_output_set_transform(ostate->output, o_config->transform);
wlr_output_layout_add(sample->layout, ostate->output, o_config->x,
o_config->y);
} else {
wlr_output_layout_add_auto(sample->layout, ostate->output);
}
struct sample_cursor *cursor;
wl_list_for_each(cursor, &sample->cursors, link) {
example_config_configure_cursor(sample->config, cursor->cursor,
sample->compositor);
struct wlr_xcursor_image *image = sample->xcursor->images[0];
wlr_cursor_set_image(cursor->cursor, image->buffer, image->width,
image->width, image->height, image->hotspot_x, image->hotspot_y, 0);
wlr_cursor_warp(cursor->cursor, NULL, cursor->cursor->x,
cursor->cursor->y);
}
}
static void handle_output_remove(struct output_state *ostate) {
struct sample_state *sample = ostate->compositor->data;
wlr_output_layout_remove(sample->layout, ostate->output);
struct sample_cursor *cursor;
wl_list_for_each(cursor, &sample->cursors, link) {
example_config_configure_cursor(sample->config, cursor->cursor,
sample->compositor);
}
}
static void handle_cursor_motion(struct wl_listener *listener, void *data) { static void handle_cursor_motion(struct wl_listener *listener, void *data) {
struct sample_cursor *cursor = struct sample_cursor *cursor =
wl_container_of(listener, cursor, cursor_motion); wl_container_of(listener, cursor, cursor_motion);
@ -121,39 +120,6 @@ static void handle_cursor_motion_absolute(struct wl_listener *listener,
wlr_cursor_warp_absolute(cursor->cursor, event->device, event->x, event->y); wlr_cursor_warp_absolute(cursor->cursor, event->device, event->x, event->y);
} }
static void handle_input_add(struct compositor_state *state,
struct wlr_input_device *device) {
struct sample_state *sample = state->data;
if (device->type != WLR_INPUT_DEVICE_POINTER) {
return;
}
struct sample_cursor *cursor = calloc(1, sizeof(struct sample_cursor));
cursor->state = sample;
cursor->device = device;
cursor->cursor = wlr_cursor_create();
wlr_cursor_attach_output_layout(cursor->cursor, sample->layout);
wlr_cursor_map_to_region(cursor->cursor, sample->config->cursor.mapped_box);
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);
example_config_configure_cursor(sample->config, cursor->cursor,
sample->compositor);
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);
}
static void cursor_destroy(struct sample_cursor *cursor) { static void cursor_destroy(struct sample_cursor *cursor) {
wl_list_remove(&cursor->link); wl_list_remove(&cursor->link);
wl_list_remove(&cursor->cursor_motion.link); wl_list_remove(&cursor->cursor_motion.link);
@ -162,9 +128,10 @@ static void cursor_destroy(struct sample_cursor *cursor) {
free(cursor); free(cursor);
} }
static void handle_input_remove(struct compositor_state *state, void input_remove_notify(struct wl_listener *listener, void *data) {
struct wlr_input_device *device) { struct wlr_input_device *device = data;
struct sample_state *sample = state->data; struct sample_cursor *sample_cursor = wl_container_of(listener, sample_cursor, destroy);
struct sample_state *sample = sample_cursor->sample;
struct sample_cursor *cursor; struct sample_cursor *cursor;
wl_list_for_each(cursor, &sample->cursors, link) { wl_list_for_each(cursor, &sample->cursors, link) {
if (cursor->device == device) { if (cursor->device == device) {
@ -172,29 +139,167 @@ static void handle_input_remove(struct compositor_state *state,
break; break;
} }
} }
struct sample_pointer *pointer;
wl_list_for_each(pointer, &sample->pointers, link) {
if (pointer->device == device) {
free(pointer);
break;
}
}
}
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);
}
}
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);
struct sample_output *sample_output = calloc(1, sizeof(struct sample_output));
if (!wl_list_empty(&output->modes)) {
struct wlr_output_mode *mode = wl_container_of(output->modes.prev, mode, link);
wlr_output_set_mode(output, mode);
}
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);
}
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_event_keyboard_key *event = data;
uint32_t keycode = event->keycode + 8;
const xkb_keysym_t *syms;
int nsyms = xkb_state_key_get_syms(keyboard->device->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);
}
}
}
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);
}
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->device = device;
keyboard->sample = sample;
wl_signal_add(&device->events.destroy, &keyboard->destroy);
keyboard->destroy.notify = keyboard_destroy_notify;
wl_signal_add(&device->keyboard->events.key, &keyboard->key);
keyboard->key.notify = keyboard_key_notify;
struct xkb_rule_names rules = { 0 };
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);
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[]) { int main(int argc, char *argv[]) {
wlr_log_init(L_DEBUG, NULL); wlr_log_init(L_DEBUG, NULL);
struct wl_display *display = wl_display_create();
struct sample_state state = { struct sample_state state = {
.default_color = { 0.25f, 0.25f, 0.25f, 1 }, .default_color = { 0.25f, 0.25f, 0.25f, 1 },
.clear_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);
if (!wlr) {
exit(1);
}
wl_list_init(&state.cursors); wl_list_init(&state.cursors);
wl_list_init(&state.pointers);
wl_list_init(&state.outputs);
state.config = parse_args(argc, argv);
state.layout = wlr_output_layout_create(); state.layout = wlr_output_layout_create();
struct compositor_state compositor = { 0 }; wl_signal_add(&wlr->events.new_output, &state.new_output);
compositor.data = &state; state.new_output.notify = new_output_notify;
compositor.output_add_cb = handle_output_add; wl_signal_add(&wlr->events.new_input, &state.new_input);
compositor.output_remove_cb = handle_output_remove; state.new_input.notify = new_input_notify;
compositor.output_frame_cb = handle_output_frame;
compositor.input_add_cb = handle_input_add;
compositor.input_remove_cb = handle_input_remove;
state.compositor = &compositor; clock_gettime(CLOCK_MONOTONIC, &state.last_frame);
struct wlr_xcursor_theme *theme = wlr_xcursor_theme_load("default", 16); struct wlr_xcursor_theme *theme = wlr_xcursor_theme_load("default", 16);
if (!theme) { if (!theme) {
@ -207,14 +312,13 @@ int main(int argc, char *argv[]) {
return 1; return 1;
} }
compositor_init(&compositor); if (!wlr_backend_start(wlr)) {
if (!wlr_backend_start(compositor.backend)) {
wlr_log(L_ERROR, "Failed to start backend"); wlr_log(L_ERROR, "Failed to start backend");
wlr_backend_destroy(compositor.backend); wlr_backend_destroy(wlr);
exit(1); exit(1);
} }
wl_display_run(compositor.display); wl_display_run(display);
compositor_fini(&compositor); wl_display_destroy(display);
struct sample_cursor *cursor, *tmp_cursor; struct sample_cursor *cursor, *tmp_cursor;
wl_list_for_each_safe(cursor, tmp_cursor, &state.cursors, link) { wl_list_for_each_safe(cursor, tmp_cursor, &state.cursors, link) {
@ -222,6 +326,5 @@ int main(int argc, char *argv[]) {
} }
wlr_xcursor_theme_destroy(theme); wlr_xcursor_theme_destroy(theme);
example_config_destroy(state.config);
wlr_output_layout_destroy(state.layout); wlr_output_layout_destroy(state.layout);
} }

187
examples/output-layout.c
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@ -1,4 +1,4 @@
#define _POSIX_C_SOURCE 199309L #define _POSIX_C_SOURCE 200112L
#define _XOPEN_SOURCE 700 #define _XOPEN_SOURCE 700
#include <GLES2/gl2.h> #include <GLES2/gl2.h>
#include <limits.h> #include <limits.h>
@ -16,16 +16,17 @@
#include <wlr/render/wlr_renderer.h> #include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_keyboard.h> #include <wlr/types/wlr_keyboard.h>
#include <wlr/types/wlr_matrix.h> #include <wlr/types/wlr_matrix.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_output_layout.h> #include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_output.h> #include <wlr/types/wlr_output.h>
#include <wlr/util/log.h> #include <wlr/util/log.h>
#include <xkbcommon/xkbcommon.h> #include <xkbcommon/xkbcommon.h>
#include "support/cat.h" #include "cat.h"
#include "support/config.h"
#include "support/shared.h"
struct sample_state { struct sample_state {
struct example_config *config; struct wl_display *display;
struct wl_listener new_output;
struct wl_listener new_input;
struct wlr_renderer *renderer; struct wlr_renderer *renderer;
struct wlr_texture *cat_texture; struct wlr_texture *cat_texture;
struct wlr_output_layout *layout; struct wlr_output_layout *layout;
@ -34,6 +35,20 @@ struct sample_state {
struct timespec ts_last; struct timespec ts_last;
}; };
struct sample_output {
struct sample_state *sample;
struct wlr_output *output;
struct wl_listener frame;
struct wl_listener destroy;
};
struct sample_keyboard {
struct sample_state *sample;
struct wlr_input_device *device;
struct wl_listener key;
struct wl_listener destroy;
};
static void animate_cat(struct sample_state *sample, static void animate_cat(struct sample_state *sample,
struct wlr_output *output) { struct wlr_output *output) {
struct timespec ts; struct timespec ts;
@ -93,10 +108,12 @@ static void animate_cat(struct sample_state *sample,
sample->ts_last = ts; sample->ts_last = ts;
} }
static void handle_output_frame(struct output_state *output, void output_frame_notify(struct wl_listener *listener, void *data) {
struct timespec *ts) { struct sample_output *output = wl_container_of(listener, output, frame);
struct compositor_state *state = output->compositor; struct sample_state *sample = output->sample;
struct sample_state *sample = state->data; struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
struct wlr_output *wlr_output = output->output; struct wlr_output *wlr_output = output->output;
wlr_output_make_current(wlr_output, NULL); wlr_output_make_current(wlr_output, NULL);
@ -124,94 +141,150 @@ static void handle_output_frame(struct output_state *output,
wlr_output_swap_buffers(wlr_output, NULL, NULL); wlr_output_swap_buffers(wlr_output, NULL, NULL);
} }
static void handle_output_add(struct output_state *ostate) { static void update_velocities(struct sample_state *sample,
struct sample_state *sample = ostate->compositor->data;
struct output_config *o_config =
example_config_get_output(sample->config, ostate->output);
if (o_config) {
wlr_output_set_transform(ostate->output, o_config->transform);
wlr_output_layout_add(sample->layout, ostate->output, o_config->x,
o_config->y);
} else {
wlr_output_layout_add_auto(sample->layout, ostate->output);
}
}
static void handle_output_remove(struct output_state *ostate) {
struct sample_state *sample = ostate->compositor->data;
wlr_output_layout_remove(sample->layout, ostate->output);
}
static void update_velocities(struct compositor_state *state,
float x_diff, float y_diff) { float x_diff, float y_diff) {
struct sample_state *sample = state->data;
sample->x_vel += x_diff; sample->x_vel += x_diff;
sample->y_vel += y_diff; sample->y_vel += y_diff;
} }
static void handle_keyboard_key(struct keyboard_state *kbstate, void output_remove_notify(struct wl_listener *listener, void *data) {
uint32_t keycode, xkb_keysym_t sym, enum wlr_key_state key_state, struct sample_output *sample_output = wl_container_of(listener, sample_output, destroy);
uint64_t time_usec) { struct sample_state *sample = sample_output->sample;
wlr_output_layout_remove(sample->layout, sample_output->output);
wl_list_remove(&sample_output->frame.link);
wl_list_remove(&sample_output->destroy.link);
free(sample_output);
}
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);
struct sample_output *sample_output = calloc(1, sizeof(struct sample_output));
if (!wl_list_empty(&output->modes)) {
struct wlr_output_mode *mode = wl_container_of(output->modes.prev, mode, link);
wlr_output_set_mode(output, mode);
}
wlr_output_layout_add_auto(sample->layout, 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;
}
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_event_keyboard_key *event = data;
uint32_t keycode = event->keycode + 8;
const xkb_keysym_t *syms;
int nsyms = xkb_state_key_get_syms(keyboard->device->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);
}
// NOTE: It may be better to simply refer to our key state during each frame // NOTE: It may be better to simply refer to our key state during each frame
// and make this change in pixels/sec^2 // and make this change in pixels/sec^2
// Also, key repeat // Also, key repeat
int delta = 75; int delta = 75;
if (key_state == WLR_KEY_PRESSED) { if (event->state == WLR_KEY_PRESSED) {
switch (sym) { switch (sym) {
case XKB_KEY_Left: case XKB_KEY_Left:
update_velocities(kbstate->compositor, -delta, 0); update_velocities(sample, -delta, 0);
break; break;
case XKB_KEY_Right: case XKB_KEY_Right:
update_velocities(kbstate->compositor, delta, 0); update_velocities(sample, delta, 0);
break; break;
case XKB_KEY_Up: case XKB_KEY_Up:
update_velocities(kbstate->compositor, 0, -delta); update_velocities(sample, 0, -delta);
break; break;
case XKB_KEY_Down: case XKB_KEY_Down:
update_velocities(kbstate->compositor, 0, delta); update_velocities(sample, 0, delta);
break; break;
} }
} }
}
} }
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);
}
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->device = device;
keyboard->sample = sample;
wl_signal_add(&device->events.destroy, &keyboard->destroy);
keyboard->destroy.notify = keyboard_destroy_notify;
wl_signal_add(&device->keyboard->events.key, &keyboard->key);
keyboard->key.notify = keyboard_key_notify;
struct xkb_rule_names rules = { 0 };
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);
break;
default:
break;
}
}
int main(int argc, char *argv[]) { int main(int argc, char *argv[]) {
wlr_log_init(L_DEBUG, NULL); wlr_log_init(L_DEBUG, NULL);
struct sample_state state = {0}; struct wl_display *display = wl_display_create();
struct sample_state state = {
.x_vel = 500,
.y_vel = 500,
.display = display,
};
state.x_vel = 500;
state.y_vel = 500;
state.layout = wlr_output_layout_create(); state.layout = wlr_output_layout_create();
clock_gettime(CLOCK_MONOTONIC, &state.ts_last); clock_gettime(CLOCK_MONOTONIC, &state.ts_last);
state.config = parse_args(argc, argv); struct wlr_backend *wlr = wlr_backend_autocreate(display);
if (!wlr) {
exit(1);
}
struct compositor_state compositor = { 0 }; wl_signal_add(&wlr->events.new_output, &state.new_output);
compositor.data = &state; state.new_output.notify = new_output_notify;
compositor.output_add_cb = handle_output_add; wl_signal_add(&wlr->events.new_input, &state.new_input);
compositor.output_remove_cb = handle_output_remove; state.new_input.notify = new_input_notify;
compositor.output_frame_cb = handle_output_frame;
compositor.keyboard_key_cb = handle_keyboard_key;
compositor_init(&compositor);
state.renderer = wlr_backend_get_renderer(compositor.backend); state.renderer = wlr_backend_get_renderer(wlr);
state.cat_texture = wlr_texture_from_pixels(state.renderer, state.cat_texture = wlr_texture_from_pixels(state.renderer,
WL_SHM_FORMAT_ABGR8888, cat_tex.width * 4, cat_tex.width, cat_tex.height, WL_SHM_FORMAT_ABGR8888, cat_tex.width * 4, cat_tex.width, cat_tex.height,
cat_tex.pixel_data); cat_tex.pixel_data);
if (!wlr_backend_start(compositor.backend)) { if (!wlr_backend_start(wlr)) {
wlr_log(L_ERROR, "Failed to start backend"); wlr_log(L_ERROR, "Failed to start backend");
wlr_backend_destroy(compositor.backend); wlr_backend_destroy(wlr);
exit(1); exit(1);
} }
wl_display_run(compositor.display); wl_display_run(display);
wlr_texture_destroy(state.cat_texture); wlr_texture_destroy(state.cat_texture);
wlr_renderer_destroy(state.renderer); wlr_renderer_destroy(state.renderer);
compositor_fini(&compositor);
wlr_output_layout_destroy(state.layout); wlr_output_layout_destroy(state.layout);
example_config_destroy(state.config);
} }

209
examples/pointer.c
View File

@ -1,4 +1,4 @@
#define _POSIX_C_SOURCE 199309L #define _POSIX_C_SOURCE 200112L
#define _XOPEN_SOURCE 500 #define _XOPEN_SOURCE 500
#include <assert.h> #include <assert.h>
#include <GLES2/gl2.h> #include <GLES2/gl2.h>
@ -22,13 +22,10 @@
#include <wlr/util/log.h> #include <wlr/util/log.h>
#include <wlr/xcursor.h> #include <wlr/xcursor.h>
#include <xkbcommon/xkbcommon.h> #include <xkbcommon/xkbcommon.h>
#include "support/cat.h"
#include "support/config.h"
#include "support/shared.h"
struct sample_state { struct sample_state {
struct wl_display *display;
struct compositor_state *compositor; struct compositor_state *compositor;
struct example_config *config;
struct wlr_xcursor *xcursor; struct wlr_xcursor *xcursor;
struct wlr_cursor *cursor; struct wlr_cursor *cursor;
double cur_x, cur_y; double cur_x, cur_y;
@ -36,7 +33,10 @@ struct sample_state {
float clear_color[4]; float clear_color[4];
struct wlr_output_layout *layout; struct wlr_output_layout *layout;
struct wl_list devices; struct wl_list devices;
struct timespec last_frame;
struct wl_listener new_output;
struct wl_listener new_input;
struct wl_listener cursor_motion; struct wl_listener cursor_motion;
struct wl_listener cursor_motion_absolute; struct wl_listener cursor_motion_absolute;
struct wl_listener cursor_button; struct wl_listener cursor_button;
@ -60,6 +60,20 @@ struct touch_point {
struct wl_list link; struct wl_list link;
}; };
struct sample_output {
struct sample_state *sample;
struct wlr_output *output;
struct wl_listener frame;
struct wl_listener destroy;
};
struct sample_keyboard {
struct sample_state *sample;
struct wlr_input_device *device;
struct wl_listener key;
struct wl_listener destroy;
};
static void warp_to_touch(struct sample_state *sample, static void warp_to_touch(struct sample_state *sample,
struct wlr_input_device *dev) { struct wlr_input_device *dev) {
if (wl_list_empty(&sample->touch_points)) { if (wl_list_empty(&sample->touch_points)) {
@ -79,11 +93,10 @@ static void warp_to_touch(struct sample_state *sample,
wlr_cursor_warp_absolute(sample->cursor, dev, x, y); wlr_cursor_warp_absolute(sample->cursor, dev, x, y);
} }
static void handle_output_frame(struct output_state *output, void output_frame_notify(struct wl_listener *listener, void *data) {
struct timespec *ts) { struct sample_output *sample_output = wl_container_of(listener, sample_output, frame);
struct compositor_state *state = output->compositor; struct sample_state *sample = sample_output->sample;
struct sample_state *sample = state->data; struct wlr_output *wlr_output = sample_output->output;
struct wlr_output *wlr_output = output->output;
wlr_output_make_current(wlr_output, NULL); wlr_output_make_current(wlr_output, NULL);
@ -94,52 +107,6 @@ static void handle_output_frame(struct output_state *output,
wlr_output_swap_buffers(wlr_output, NULL, NULL); wlr_output_swap_buffers(wlr_output, NULL, NULL);
} }
static void handle_output_add(struct output_state *ostate) {
struct sample_state *sample = ostate->compositor->data;
struct output_config *o_config =
example_config_get_output(sample->config, ostate->output);
if (o_config) {
wlr_output_set_transform(ostate->output, o_config->transform);
wlr_output_layout_add(sample->layout, ostate->output, o_config->x,
o_config->y);
} else {
wlr_output_layout_add_auto(sample->layout, ostate->output);
}
example_config_configure_cursor(sample->config, sample->cursor,
sample->compositor);
struct wlr_xcursor_image *image = sample->xcursor->images[0];
wlr_cursor_set_image(sample->cursor, image->buffer, image->width * 4,
image->width, image->height, image->hotspot_x, image->hotspot_y, 0);
wlr_cursor_warp(sample->cursor, NULL, sample->cursor->x, sample->cursor->y);
}
static void handle_output_remove(struct output_state *ostate) {
struct sample_state *sample = ostate->compositor->data;
wlr_output_layout_remove(sample->layout, ostate->output);
example_config_configure_cursor(sample->config, sample->cursor,
sample->compositor);
}
static void handle_input_add(struct compositor_state *state,
struct wlr_input_device *device) {
struct sample_state *sample = state->data;
if (device->type == WLR_INPUT_DEVICE_POINTER ||
device->type == WLR_INPUT_DEVICE_TOUCH ||
device->type == WLR_INPUT_DEVICE_TABLET_TOOL) {
wlr_cursor_attach_input_device(sample->cursor, device);
example_config_configure_cursor(sample->config, sample->cursor,
sample->compositor);
}
}
static void handle_cursor_motion(struct wl_listener *listener, void *data) { static void handle_cursor_motion(struct wl_listener *listener, void *data) {
struct sample_state *sample = struct sample_state *sample =
wl_container_of(listener, sample, cursor_motion); wl_container_of(listener, sample, cursor_motion);
@ -256,18 +223,117 @@ static void handle_tablet_tool_axis(struct wl_listener *listener, void *data) {
} }
} }
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_event_keyboard_key *event = data;
uint32_t keycode = event->keycode + 8;
const xkb_keysym_t *syms;
int nsyms = xkb_state_key_get_syms(keyboard->device->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);
}
}
}
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;
wlr_output_layout_remove(sample->layout, sample_output->output);
wl_list_remove(&sample_output->frame.link);
wl_list_remove(&sample_output->destroy.link);
free(sample_output);
}
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);
struct sample_output *sample_output = calloc(1, sizeof(struct sample_output));
if (!wl_list_empty(&output->modes)) {
struct wlr_output_mode *mode = wl_container_of(output->modes.prev, mode, link);
wlr_output_set_mode(output, mode);
}
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, sample_output->output);
struct wlr_xcursor_image *image = sample->xcursor->images[0];
wlr_cursor_set_image(sample->cursor, image->buffer, image->width * 4,
image->width, image->height, image->hotspot_x, image->hotspot_y, 0);
}
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);
}
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_POINTER:
case WLR_INPUT_DEVICE_TOUCH:
case WLR_INPUT_DEVICE_TABLET_TOOL:
wlr_cursor_attach_input_device(sample->cursor, device);
break;
case WLR_INPUT_DEVICE_KEYBOARD:;
struct sample_keyboard *keyboard = calloc(1, sizeof(struct sample_keyboard));
keyboard->device = device;
keyboard->sample = sample;
wl_signal_add(&device->events.destroy, &keyboard->destroy);
keyboard->destroy.notify = keyboard_destroy_notify;
wl_signal_add(&device->keyboard->events.key, &keyboard->key);
keyboard->key.notify = keyboard_key_notify;
struct xkb_rule_names rules = { 0 };
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);
break;
default:
break;
}
}
int main(int argc, char *argv[]) { int main(int argc, char *argv[]) {
wlr_log_init(L_DEBUG, NULL); wlr_log_init(L_DEBUG, NULL);
struct wl_display *display = wl_display_create();
struct sample_state state = { struct sample_state state = {
.default_color = { 0.25f, 0.25f, 0.25f, 1 }, .default_color = { 0.25f, 0.25f, 0.25f, 1 },
.clear_color = { 0.25f, 0.25f, 0.25f, 1 }, .clear_color = { 0.25f, 0.25f, 0.25f, 1 },
.display = display
}; };
state.config = parse_args(argc, argv); struct wlr_backend *wlr = wlr_backend_autocreate(display);
if (!wlr) {
exit(1);
}
state.cursor = wlr_cursor_create(); state.cursor = wlr_cursor_create();
state.layout = wlr_output_layout_create(); state.layout = wlr_output_layout_create();
wlr_cursor_attach_output_layout(state.cursor, state.layout); wlr_cursor_attach_output_layout(state.cursor, state.layout);
wlr_cursor_map_to_region(state.cursor, state.config->cursor.mapped_box); //wlr_cursor_map_to_region(state.cursor, state.config->cursor.mapped_box);
wl_list_init(&state.devices); wl_list_init(&state.devices);
wl_list_init(&state.touch_points); wl_list_init(&state.touch_points);
@ -298,20 +364,17 @@ int main(int argc, char *argv[]) {
wl_signal_add(&state.cursor->events.touch_cancel, &state.touch_cancel); wl_signal_add(&state.cursor->events.touch_cancel, &state.touch_cancel);
state.touch_cancel.notify = handle_touch_cancel; state.touch_cancel.notify = handle_touch_cancel;
wl_signal_add(&wlr->events.new_input, &state.new_input);
state.new_input.notify = new_input_notify;
wl_signal_add(&wlr->events.new_output, &state.new_output);
state.new_output.notify = new_output_notify;
// tool events // tool events
wl_signal_add(&state.cursor->events.tablet_tool_axis, wl_signal_add(&state.cursor->events.tablet_tool_axis,
&state.tablet_tool_axis); &state.tablet_tool_axis);
state.tablet_tool_axis.notify = handle_tablet_tool_axis; state.tablet_tool_axis.notify = handle_tablet_tool_axis;
struct compositor_state compositor = { 0 };
compositor.data = &state;
compositor.output_add_cb = handle_output_add;
compositor.output_remove_cb = handle_output_remove;
compositor.output_frame_cb = handle_output_frame;
compositor.input_add_cb = handle_input_add;
state.compositor = &compositor;
struct wlr_xcursor_theme *theme = wlr_xcursor_theme_load("default", 16); struct wlr_xcursor_theme *theme = wlr_xcursor_theme_load("default", 16);
if (!theme) { if (!theme) {
wlr_log(L_ERROR, "Failed to load cursor theme"); wlr_log(L_ERROR, "Failed to load cursor theme");
@ -327,17 +390,17 @@ int main(int argc, char *argv[]) {
wlr_cursor_set_image(state.cursor, image->buffer, image->width * 4, wlr_cursor_set_image(state.cursor, image->buffer, image->width * 4,
image->width, image->height, image->hotspot_x, image->hotspot_y, 0); image->width, image->height, image->hotspot_x, image->hotspot_y, 0);
compositor_init(&compositor); clock_gettime(CLOCK_MONOTONIC, &state.last_frame);
if (!wlr_backend_start(compositor.backend)) {
if (!wlr_backend_start(wlr)) {
wlr_log(L_ERROR, "Failed to start backend"); wlr_log(L_ERROR, "Failed to start backend");
wlr_backend_destroy(compositor.backend); wlr_backend_destroy(wlr);
exit(1); exit(1);
} }
wl_display_run(compositor.display); wl_display_run(display);
compositor_fini(&compositor); wl_display_destroy(display);
wlr_xcursor_theme_destroy(theme); wlr_xcursor_theme_destroy(theme);
example_config_destroy(state.config);
wlr_cursor_destroy(state.cursor); wlr_cursor_destroy(state.cursor);
wlr_output_layout_destroy(state.layout); wlr_output_layout_destroy(state.layout);
} }

257
examples/rotation.c
View File

@ -1,6 +1,7 @@
#define _POSIX_C_SOURCE 199309L #define _POSIX_C_SOURCE 200112L
#define _XOPEN_SOURCE 500 #define _XOPEN_SOURCE 500
#include <GLES2/gl2.h> #include <GLES2/gl2.h>
#include <getopt.h>
#include <math.h> #include <math.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
@ -14,29 +15,48 @@
#include <wlr/backend/session.h> #include <wlr/backend/session.h>
#include <wlr/render/wlr_renderer.h> #include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_keyboard.h> #include <wlr/types/wlr_keyboard.h>
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_matrix.h> #include <wlr/types/wlr_matrix.h>
#include <wlr/util/log.h> #include <wlr/util/log.h>
#include <xkbcommon/xkbcommon.h> #include <xkbcommon/xkbcommon.h>
#include "support/shared.h" #include "cat.h"
#include "support/config.h"
#include "support/cat.h"
struct sample_state { struct sample_state {
struct example_config *config; struct wl_display *display;
struct wl_listener new_output;
struct wl_listener new_input;
struct timespec last_frame;
struct wlr_renderer *renderer; struct wlr_renderer *renderer;
struct wlr_texture *cat_texture; struct wlr_texture *cat_texture;
struct wl_list outputs;
enum wl_output_transform transform;
}; };
struct output_data { struct sample_output {
struct sample_state *sample;
struct wlr_output *output;
struct wl_listener frame;
struct wl_listener destroy;
float x_offs, y_offs; float x_offs, y_offs;
float x_vel, y_vel; float x_vel, y_vel;
struct wl_list link;
}; };
static void handle_output_frame(struct output_state *output, struct timespec *ts) { struct sample_keyboard {
struct compositor_state *state = output->compositor; struct sample_state *sample;
struct sample_state *sample = state->data; struct wlr_input_device *device;
struct output_data *odata = output->data; struct wl_listener key;
struct wlr_output *wlr_output = output->output; struct wl_listener destroy;
};
static void output_frame_notify(struct wl_listener *listener, void *data) {
struct sample_output *sample_output = wl_container_of(listener, sample_output, frame);
struct sample_state *sample = sample_output->sample;
struct wlr_output *wlr_output = sample_output->output;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
int32_t width, height; int32_t width, height;
wlr_output_effective_resolution(wlr_output, &width, &height); wlr_output_effective_resolution(wlr_output, &width, &height);
@ -45,8 +65,8 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
wlr_renderer_begin(sample->renderer, wlr_output->width, wlr_output->height); wlr_renderer_begin(sample->renderer, wlr_output->width, wlr_output->height);
wlr_renderer_clear(sample->renderer, (float[]){0.25f, 0.25f, 0.25f, 1}); wlr_renderer_clear(sample->renderer, (float[]){0.25f, 0.25f, 0.25f, 1});
for (int y = -128 + (int)odata->y_offs; y < height; y += 128) { for (int y = -128 + (int)sample_output->y_offs; y < height; y += 128) {
for (int x = -128 + (int)odata->x_offs; x < width; x += 128) { for (int x = -128 + (int)sample_output->x_offs; x < width; x += 128) {
wlr_render_texture(sample->renderer, sample->cat_texture, wlr_render_texture(sample->renderer, sample->cat_texture,
wlr_output->transform_matrix, x, y, 1.0f); wlr_output->transform_matrix, x, y, 1.0f);
} }
@ -55,90 +75,181 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
wlr_renderer_end(sample->renderer); wlr_renderer_end(sample->renderer);
wlr_output_swap_buffers(wlr_output, NULL, NULL); wlr_output_swap_buffers(wlr_output, NULL, NULL);
long ms = (ts->tv_sec - output->last_frame.tv_sec) * 1000 + long ms = (now.tv_sec - sample->last_frame.tv_sec) * 1000 +
(ts->tv_nsec - output->last_frame.tv_nsec) / 1000000; (now.tv_nsec - sample->last_frame.tv_nsec) / 1000000;
float seconds = ms / 1000.0f; float seconds = ms / 1000.0f;
odata->x_offs += odata->x_vel * seconds; sample_output->x_offs += sample_output->x_vel * seconds;
odata->y_offs += odata->y_vel * seconds; sample_output->y_offs += sample_output->y_vel * seconds;
if (odata->x_offs > 128) { if (sample_output->x_offs > 128) {
odata->x_offs = 0; sample_output->x_offs = 0;
} }
if (odata->y_offs > 128) { if (sample_output->y_offs > 128) {
odata->y_offs = 0; sample_output->y_offs = 0;
} }
sample->last_frame = now;
} }
static void handle_output_add(struct output_state *output) { static void update_velocities(struct sample_state *sample,
struct output_data *odata = calloc(1, sizeof(struct output_data));
odata->x_offs = odata->y_offs = 0;
odata->x_vel = odata->y_vel = 128;
output->data = odata;
struct sample_state *state = output->compositor->data;
struct output_config *conf;
wl_list_for_each(conf, &state->config->outputs, link) {
if (strcmp(conf->name, output->output->name) == 0) {
wlr_output_set_transform(output->output, conf->transform);
break;
}
}
}
static void handle_output_remove(struct output_state *output) {
free(output->data);
}
static void update_velocities(struct compositor_state *state,
float x_diff, float y_diff) { float x_diff, float y_diff) {
struct output_state *output; struct sample_output *sample_output;
wl_list_for_each(output, &state->outputs, link) { wl_list_for_each(sample_output, &sample->outputs, link) {
struct output_data *odata = output->data; sample_output->x_vel += x_diff;
odata->x_vel += x_diff; sample_output->y_vel += y_diff;
odata->y_vel += y_diff;
} }
} }
static void handle_keyboard_key(struct keyboard_state *kbstate, void output_remove_notify(struct wl_listener *listener, void *data) {
uint32_t keycode, xkb_keysym_t sym, enum wlr_key_state key_state, struct sample_output *sample_output = wl_container_of(listener, sample_output, destroy);
uint64_t time_usec) { wl_list_remove(&sample_output->frame.link);
// NOTE: It may be better to simply refer to our key state during each frame wl_list_remove(&sample_output->destroy.link);
// and make this change in pixels/sec^2 free(sample_output);
// Also, key repeat }
if (key_state == WLR_KEY_PRESSED) {
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);
struct sample_output *sample_output = calloc(1, sizeof(struct sample_output));
if (!wl_list_empty(&output->modes)) {
struct wlr_output_mode *mode = wl_container_of(output->modes.prev, mode, link);
wlr_output_set_mode(output, mode);
}
sample_output->x_offs = sample_output->y_offs = 0;
sample_output->x_vel = sample_output->y_vel = 128;
wlr_output_set_transform(output, sample->transform);
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;
wl_list_insert(&sample->outputs, &sample_output->link);
}
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_event_keyboard_key *event = data;
uint32_t keycode = event->keycode + 8;
const xkb_keysym_t *syms;
int nsyms = xkb_state_key_get_syms(keyboard->device->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);
}
if (event->state == WLR_KEY_PRESSED) {
switch (sym) { switch (sym) {
case XKB_KEY_Left: case XKB_KEY_Left:
update_velocities(kbstate->compositor, -16, 0); update_velocities(sample, -16, 0);
break; break;
case XKB_KEY_Right: case XKB_KEY_Right:
update_velocities(kbstate->compositor, 16, 0); update_velocities(sample, 16, 0);
break; break;
case XKB_KEY_Up: case XKB_KEY_Up:
update_velocities(kbstate->compositor, 0, -16); update_velocities(sample, 0, -16);
break; break;
case XKB_KEY_Down: case XKB_KEY_Down:
update_velocities(kbstate->compositor, 0, 16); update_velocities(sample, 0, 16);
break; break;
} }
} }
}
} }
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);
}
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->device = device;
keyboard->sample = sample;
wl_signal_add(&device->events.destroy, &keyboard->destroy);
keyboard->destroy.notify = keyboard_destroy_notify;
wl_signal_add(&device->keyboard->events.key, &keyboard->key);
keyboard->key.notify = keyboard_key_notify;
struct xkb_rule_names rules = { 0 };
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);
break;
default:
break;
}
}
int main(int argc, char *argv[]) { int main(int argc, char *argv[]) {
int c;
enum wl_output_transform transform = WL_OUTPUT_TRANSFORM_NORMAL;
while ((c = getopt(argc, argv, "r:")) != -1) {
switch (c) {
case 'r':
if (strcmp(optarg, "90") == 0) {
transform = WL_OUTPUT_TRANSFORM_90;
} else if (strcmp(optarg, "180") == 0) {
transform = WL_OUTPUT_TRANSFORM_180;
} else if (strcmp(optarg, "270") == 0) {
transform = WL_OUTPUT_TRANSFORM_270;
} else if (strcmp(optarg, "flipped") == 0) {
transform = WL_OUTPUT_TRANSFORM_FLIPPED;
} else if (strcmp(optarg, "flipped-90") == 0) {
transform = WL_OUTPUT_TRANSFORM_FLIPPED_90;
} else if (strcmp(optarg, "flipped-180") == 0) {
transform = WL_OUTPUT_TRANSFORM_FLIPPED_180;
} else if (strcmp(optarg, "flipped-270") == 0) {
transform = WL_OUTPUT_TRANSFORM_FLIPPED_270;
} else {
wlr_log(L_ERROR, "got unknown transform value: %s", optarg);
}
break;
default:
break;
}
}
wlr_log_init(L_DEBUG, NULL); wlr_log_init(L_DEBUG, NULL);
struct sample_state state = {0}; struct wl_display *display = wl_display_create();
state.config = parse_args(argc, argv); struct sample_state state = {
.display = display,
.transform = transform
};
wl_list_init(&state.outputs);
struct compositor_state compositor = { 0 }; struct wlr_backend *wlr = wlr_backend_autocreate(display);
compositor.data = &state; if (!wlr) {
compositor.output_add_cb = handle_output_add; exit(1);
compositor.output_remove_cb = handle_output_remove; }
compositor.output_frame_cb = handle_output_frame;
compositor.keyboard_key_cb = handle_keyboard_key;
compositor_init(&compositor);
state.renderer = wlr_backend_get_renderer(compositor.backend); 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);
state.renderer = wlr_backend_get_renderer(wlr);
if (!state.renderer) { if (!state.renderer) {
wlr_log(L_ERROR, "Could not start compositor, OOM"); wlr_log(L_ERROR, "Could not start compositor, OOM");
wlr_backend_destroy(wlr);
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
state.cat_texture = wlr_texture_from_pixels(state.renderer, state.cat_texture = wlr_texture_from_pixels(state.renderer,
@ -149,16 +260,14 @@ int main(int argc, char *argv[]) {
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
if (!wlr_backend_start(compositor.backend)) { if (!wlr_backend_start(wlr)) {
wlr_log(L_ERROR, "Failed to start backend"); wlr_log(L_ERROR, "Failed to start backend");
wlr_backend_destroy(compositor.backend); wlr_backend_destroy(wlr);
exit(1); exit(1);
} }
wl_display_run(compositor.display); wl_display_run(display);
wlr_texture_destroy(state.cat_texture); wlr_texture_destroy(state.cat_texture);
wlr_renderer_destroy(state.renderer); wlr_renderer_destroy(state.renderer);
compositor_fini(&compositor); wl_display_destroy(display);
example_config_destroy(state.config);
} }

146
examples/simple.c
View File

@ -1,4 +1,4 @@
#define _POSIX_C_SOURCE 199309L #define _POSIX_C_SOURCE 200112L
#include <GLES2/gl2.h> #include <GLES2/gl2.h>
#include <inttypes.h> #include <inttypes.h>
#include <stdio.h> #include <stdio.h>
@ -9,21 +9,42 @@
#include <wlr/backend.h> #include <wlr/backend.h>
#include <wlr/backend/session.h> #include <wlr/backend/session.h>
#include <wlr/types/wlr_output.h> #include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/util/log.h> #include <wlr/util/log.h>
#include <xkbcommon/xkbcommon.h> #include <xkbcommon/xkbcommon.h>
#include "support/shared.h"
struct sample_state { struct sample_state {
struct wl_display *display;
struct wl_listener new_output;
struct wl_listener new_input;
struct timespec last_frame;
float color[3]; float color[3];
int dec; int dec;
}; };
void handle_output_frame(struct output_state *output, struct timespec *ts) { struct sample_output {
struct compositor_state *state = output->compositor; struct sample_state *sample;
struct sample_state *sample = state->data; struct wlr_output *output;
struct wl_listener frame;
struct wl_listener destroy;
};
long ms = (ts->tv_sec - state->last_frame.tv_sec) * 1000 + struct sample_keyboard {
(ts->tv_nsec - state->last_frame.tv_nsec) / 1000000; struct sample_state *sample;
struct wlr_input_device *device;
struct wl_listener key;
struct wl_listener destroy;
};
void output_frame_notify(struct wl_listener *listener, void *data) {
wlr_log(L_DEBUG, "Output removed");
struct sample_output *sample_output = wl_container_of(listener, sample_output, frame);
struct sample_state *sample = sample_output->sample;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
long ms = (now.tv_sec - sample->last_frame.tv_sec) * 1000 +
(now.tv_nsec - sample->last_frame.tv_nsec) / 1000000;
int inc = (sample->dec + 1) % 3; int inc = (sample->dec + 1) % 3;
sample->color[inc] += ms / 2000.0f; sample->color[inc] += ms / 2000.0f;
@ -35,30 +56,117 @@ void handle_output_frame(struct output_state *output, struct timespec *ts) {
sample->dec = inc; sample->dec = inc;
} }
wlr_output_make_current(output->output, NULL); wlr_output_make_current(sample_output->output, NULL);
glClearColor(sample->color[0], sample->color[1], sample->color[2], 1.0); glClearColor(sample->color[0], sample->color[1], sample->color[2], 1.0);
glClear(GL_COLOR_BUFFER_BIT); glClear(GL_COLOR_BUFFER_BIT);
wlr_output_swap_buffers(output->output, NULL, NULL); wlr_output_swap_buffers(sample_output->output, NULL, NULL);
sample->last_frame = now;
}
void output_remove_notify(struct wl_listener *listener, void *data) {
struct sample_output *sample_output = wl_container_of(listener, sample_output, destroy);
wl_list_remove(&sample_output->frame.link);
wl_list_remove(&sample_output->destroy.link);
free(sample_output);
}
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);
struct sample_output *sample_output = calloc(1, sizeof(struct sample_output));
if (!wl_list_empty(&output->modes)) {
struct wlr_output_mode *mode = wl_container_of(output->modes.prev, mode, link);
wlr_output_set_mode(output, mode);
}
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;
}
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_event_keyboard_key *event = data;
uint32_t keycode = event->keycode + 8;
const xkb_keysym_t *syms;
int nsyms = xkb_state_key_get_syms(keyboard->device->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);
}
}
}
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);
}
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->device = device;
keyboard->sample = sample;
wl_signal_add(&device->events.destroy, &keyboard->destroy);
keyboard->destroy.notify = keyboard_destroy_notify;
wl_signal_add(&device->keyboard->events.key, &keyboard->key);
keyboard->key.notify = keyboard_key_notify;
struct xkb_rule_names rules = { 0 };
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);
break;
default:
break;
}
} }
int main() { int main() {
wlr_log_init(L_DEBUG, NULL); wlr_log_init(L_DEBUG, NULL);
struct wl_display *display = wl_display_create();
struct sample_state state = { struct sample_state state = {
.color = { 1.0, 0.0, 0.0 }, .color = { 1.0, 0.0, 0.0 },
.dec = 0, .dec = 0,
.last_frame = { 0 },
.display = display
}; };
struct compositor_state compositor = { 0, struct wlr_backend *wlr = wlr_backend_autocreate(display);
.data = &state, if (!wlr) {
.output_frame_cb = handle_output_frame,
};
compositor_init(&compositor);
if (!wlr_backend_start(compositor.backend)) {
wlr_log(L_ERROR, "Failed to start backend");
wlr_backend_destroy(compositor.backend);
exit(1); exit(1);
} }
wl_display_run(compositor.display); wl_signal_add(&wlr->events.new_output, &state.new_output);
compositor_fini(&compositor); 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);
if (!wlr_backend_start(wlr)) {
wlr_log(L_ERROR, "Failed to start backend");
wlr_backend_destroy(wlr);
exit(1);
}
wl_display_run(display);
wl_display_destroy(display);
} }

2
examples/support/README
View File

@ -1,2 +0,0 @@
Support code for the examples. Code that's not relevant to the principle each
example demonstrates is largely offloaded to this directory.

351
examples/support/config.c
View File

@ -1,351 +0,0 @@
#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L
#endif
#include <stdlib.h>
#include <limits.h>
#include <getopt.h>
#include <string.h>
#include <unistd.h>
#include <sys/param.h>
#include <wlr/config.h>
#include <wlr/util/log.h>
#include <wlr/types/wlr_box.h>
#include "support/config.h"
#include "shared.h"
#include "ini.h"
static void usage(const char *name, int ret) {
fprintf(stderr,
"usage: %s [-C <FILE>]\n"
"\n"
" -C <FILE> Path to the configuration file\n"
" (default: wlr-example.ini).\n"
" See `rootston/rootston.ini.example` for config\n"
" file documentation.\n", name);
exit(ret);
}
static struct wlr_box *parse_geometry(const char *str) {
// format: {width}x{height}+{x}+{y}
if (strlen(str) > 255) {
wlr_log(L_ERROR, "cannot parse geometry string, too long");
return NULL;
}
char *buf = strdup(str);
struct wlr_box *box = calloc(1, sizeof(struct wlr_box));
bool has_width = false;
bool has_height = false;
bool has_x = false;
bool has_y = false;
char *pch = strtok(buf, "x+");
while (pch != NULL) {
errno = 0;
char *endptr;
long val = strtol(pch, &endptr, 0);
if ((errno == ERANGE && (val == LONG_MAX || val == LONG_MIN)) ||
(errno != 0 && val == 0)) {
goto invalid_input;
}
if (endptr == pch) {
goto invalid_input;
}
if (!has_width) {
box->width = val;
has_width = true;
} else if (!has_height) {
box->height = val;
has_height = true;
} else if (!has_x) {
box->x = val;
has_x = true;
} else if (!has_y) {
box->y = val;
has_y = true;
} else {
break;
}
pch = strtok(NULL, "x+");
}
if (!has_width || !has_height) {
goto invalid_input;
}
free(buf);
return box;
invalid_input:
wlr_log(L_ERROR, "could not parse geometry string: %s", str);
free(buf);
free(box);
return NULL;
}
static const char *output_prefix = "output:";
static const char *device_prefix = "device:";
static int config_ini_handler(void *user, const char *section, const char *name,
const char *value) {
struct example_config *config = user;
if (strncmp(output_prefix, section, strlen(output_prefix)) == 0) {
const char *output_name = section + strlen(output_prefix);
struct output_config *oc;
bool found = false;
wl_list_for_each(oc, &config->outputs, link) {
if (strcmp(oc->name, output_name) == 0) {
found = true;
break;
}
}
if (!found) {
oc = calloc(1, sizeof(struct output_config));
oc->name = strdup(output_name);
oc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
wl_list_insert(&config->outputs, &oc->link);
}
if (strcmp(name, "x") == 0) {
oc->x = strtol(value, NULL, 10);
} else if (strcmp(name, "y") == 0) {
oc->y = strtol(value, NULL, 10);
} else if (strcmp(name, "rotate") == 0) {
if (strcmp(value, "90") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_90;
} else if (strcmp(value, "180") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_180;
} else if (strcmp(value, "270") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_270;
} else if (strcmp(value, "flipped") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED;
} else if (strcmp(value, "flipped-90") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED_90;
} else if (strcmp(value, "flipped-180") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED_180;
} else if (strcmp(value, "flipped-270") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED_270;
} else {
wlr_log(L_ERROR, "got unknown transform value: %s", value);
}
}
} else if (strcmp(section, "cursor") == 0) {
if (strcmp(name, "map-to-output") == 0) {
free(config->cursor.mapped_output);
config->cursor.mapped_output = strdup(value);
} else if (strcmp(name, "geometry") == 0) {
free(config->cursor.mapped_box);
config->cursor.mapped_box = parse_geometry(value);
} else {
wlr_log(L_ERROR, "got unknown cursor config: %s", name);
}
} else if (strncmp(device_prefix, section, strlen(device_prefix)) == 0) {
const char *device_name = section + strlen(device_prefix);
struct device_config *dc;
bool found = false;
wl_list_for_each(dc, &config->devices, link) {
if (strcmp(dc->name, device_name) == 0) {
found = true;
break;
}
}
if (!found) {
dc = calloc(1, sizeof(struct device_config));
dc->name = strdup(device_name);
wl_list_insert(&config->devices, &dc->link);
}
if (strcmp(name, "map-to-output") == 0) {
free(dc->mapped_output);
dc->mapped_output = strdup(value);
} else if (strcmp(name, "geometry") == 0) {
free(dc->mapped_box);
dc->mapped_box = parse_geometry(value);
} else {
wlr_log(L_ERROR, "got unknown device config: %s", name);
}
} else {
wlr_log(L_ERROR, "got unknown config section: %s", section);
}
return 1;
}
struct example_config *parse_args(int argc, char *argv[]) {
struct example_config *config = calloc(1, sizeof(struct example_config));
wl_list_init(&config->outputs);
wl_list_init(&config->devices);
int c;
while ((c = getopt(argc, argv, "C:h")) != -1) {
switch (c) {
case 'C':
config->config_path = strdup(optarg);
break;
case 'h':
case '?':
usage(argv[0], c != 'h');
}
}
if (!config->config_path) {
// get the config path from the current directory
char cwd[MAXPATHLEN];
if (getcwd(cwd, sizeof(cwd)) != NULL) {
char buf[MAXPATHLEN];
if (snprintf(buf, MAXPATHLEN, "%s/%s", cwd, "wlr-example.ini") >= MAXPATHLEN) {
wlr_log(L_ERROR, "config path too long");
exit(1);
}
config->config_path = strdup(buf);
} else {
wlr_log(L_ERROR, "could not get cwd");
exit(1);
}
}
int result = ini_parse(config->config_path, config_ini_handler, config);
if (result == -1) {
wlr_log(L_DEBUG, "No config file found. Using empty config.");
} else if (result == -2) {
wlr_log(L_ERROR, "Could not allocate memory to parse config file");
exit(1);
} else if (result != 0) {
wlr_log(L_ERROR, "Could not parse config file");
exit(1);
}
return config;
}
void example_config_destroy(struct example_config *config) {
struct output_config *oc, *otmp = NULL;
wl_list_for_each_safe(oc, otmp, &config->outputs, link) {
free(oc->name);
free(oc);
}
struct device_config *dc, *dtmp = NULL;
wl_list_for_each_safe(dc, dtmp, &config->devices, link) {
free(dc->name);
if (dc->mapped_output) {
free(dc->mapped_output);
}
if (dc->mapped_box) {
free(dc->mapped_box);
}
free(dc);
}
if (config->config_path) {
free(config->config_path);
}
if (config->cursor.mapped_output) {
free(config->cursor.mapped_output);
}
if (config->cursor.mapped_box) {
free(config->cursor.mapped_box);
}
free(config);
}
struct output_config *example_config_get_output(struct example_config *config,
struct wlr_output *output) {
struct output_config *o_config;
wl_list_for_each(o_config, &config->outputs, link) {
if (strcmp(o_config->name, output->name) == 0) {
return o_config;
}
}
return NULL;
}
struct device_config *example_config_get_device(struct example_config *config,
struct wlr_input_device *device) {
struct device_config *d_config;
wl_list_for_each(d_config, &config->devices, link) {
if (strcmp(d_config->name, device->name) == 0) {
return d_config;
}
}
return NULL;
}
/**
* Set device output mappings to NULL and configure region mappings.
*/
static void reset_device_mappings(struct example_config *config,
struct wlr_cursor *cursor, struct wlr_input_device *device) {
struct device_config *d_config;
wlr_cursor_map_input_to_output(cursor, device, NULL);
d_config = example_config_get_device(config, device);
if (d_config) {
wlr_cursor_map_input_to_region(cursor, device,
d_config->mapped_box);
}
}
static void set_device_output_mappings(struct example_config *config,
struct wlr_cursor *cursor, struct wlr_output *output,
struct wlr_input_device *device) {
struct device_config *d_config;
d_config = example_config_get_device(config, device);
if (d_config &&
d_config->mapped_output &&
strcmp(d_config->mapped_output, output->name) == 0) {
wlr_cursor_map_input_to_output(cursor, device, output);
}
}
void example_config_configure_cursor(struct example_config *config,
struct wlr_cursor *cursor, struct compositor_state *compositor) {
struct pointer_state *p_state;
struct tablet_tool_state *tt_state;
struct touch_state *tch_state;
struct output_state *o_state;
// reset mappings
wlr_cursor_map_to_output(cursor, NULL);
wl_list_for_each(p_state, &compositor->pointers, link) {
reset_device_mappings(config, cursor, p_state->device);
}
wl_list_for_each(tt_state, &compositor->tablet_tools, link) {
reset_device_mappings(config, cursor, tt_state->device);
}
wl_list_for_each(tch_state, &compositor->touch, link) {
reset_device_mappings(config, cursor, tch_state->device);
}
// configure device to output mappings
char *mapped_output = config->cursor.mapped_output;
wl_list_for_each(o_state, &compositor->outputs, link) {
if (mapped_output && strcmp(mapped_output, o_state->output->name) == 0) {
wlr_cursor_map_to_output(cursor, o_state->output);
}
wl_list_for_each(p_state, &compositor->pointers, link) {
set_device_output_mappings(config, cursor, o_state->output,
p_state->device);
}
wl_list_for_each(tt_state, &compositor->tablet_tools, link) {
set_device_output_mappings(config, cursor, o_state->output,
tt_state->device);
}
wl_list_for_each(tch_state, &compositor->touch, link) {
set_device_output_mappings(config, cursor, o_state->output,
tch_state->device);
}
}
}

60
examples/support/config.h
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#ifndef _EXAMPLE_CONFIG_H
#define _EXAMPLE_CONFIG_H
#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200112L
#endif
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_cursor.h>
#include "shared.h"
struct output_config {
char *name;
enum wl_output_transform transform;
int x, y;
struct wl_list link;
};
struct device_config {
char *name;
char *mapped_output;
struct wlr_box *mapped_box;
struct wl_list link;
};
struct example_config {
struct {
char *mapped_output;
struct wlr_box *mapped_box;
} cursor;
struct wl_list outputs;
struct wl_list devices;
char *config_path;
};
struct example_config *parse_args(int argc, char *argv[]);
void example_config_destroy(struct example_config *config);
/**
* Get configuration for the output. If the output is not configured, returns
* NULL.
*/
struct output_config *example_config_get_output(struct example_config *config,
struct wlr_output *output);
/**
* Get configuration for the device. If the device is not configured, returns
* NULL.
*/
struct device_config *example_config_get_device(struct example_config *config,
struct wlr_input_device *device);
/**
* Configure cursor device mappings.
*/
void example_config_configure_cursor(struct example_config *config,
struct wlr_cursor *cursor, struct compositor_state *state);
#endif

195
examples/support/ini.c
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/* inih -- simple .INI file parser
inih is released under the New BSD license (see LICENSE.txt). Go to the project
home page for more info:
https://github.com/benhoyt/inih
*/
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
#define _CRT_SECURE_NO_WARNINGS
#endif
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include "ini.h"
#if !INI_USE_STACK
#include <stdlib.h>
#endif
#define MAX_SECTION 50
#define MAX_NAME 50
/* Strip whitespace chars off end of given string, in place. Return s. */
static char* rstrip(char* s)
{
char* p = s + strlen(s);
while (p > s && isspace((unsigned char)(*--p)))
*p = '\0';
return s;
}
/* Return pointer to first non-whitespace char in given string. */
static char* lskip(const char* s)
{
while (*s && isspace((unsigned char)(*s)))
s++;
return (char*)s;
}
/* Return pointer to first char (of chars) or inline comment in given string,
or pointer to null at end of string if neither found. Inline comment must
be prefixed by a whitespace character to register as a comment. */
static char* find_chars_or_comment(const char* s, const char* chars)
{
#if INI_ALLOW_INLINE_COMMENTS
int was_space = 0;
while (*s && (!chars || !strchr(chars, *s)) &&
!(was_space && strchr(INI_INLINE_COMMENT_PREFIXES, *s))) {
was_space = isspace((unsigned char)(*s));
s++;
}
#else
while (*s && (!chars || !strchr(chars, *s))) {
s++;
}
#endif
return (char*)s;
}
/* Version of strncpy that ensures dest (size bytes) is null-terminated. */
static char* strncpy0(char* dest, const char* src, size_t size)
{
strncpy(dest, src, size-1);
dest[size - 1] = '\0';
return dest;
}
/* See documentation in header file. */
int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
void* user)
{
/* Uses a fair bit of stack (use heap instead if you need to) */
#if INI_USE_STACK
char line[INI_MAX_LINE];
#else
char* line;
#endif
char section[MAX_SECTION] = "";
char prev_name[MAX_NAME] = "";
char* start;
char* end;
char* name;
char* value;
int lineno = 0;
int error = 0;
#if !INI_USE_STACK
line = (char*)malloc(INI_MAX_LINE);
if (!line) {
return -2;
}
#endif
/* Scan through stream line by line */
while (reader(line, INI_MAX_LINE, stream) != NULL) {
lineno++;
start = line;
#if INI_ALLOW_BOM
if (lineno == 1 && (unsigned char)start[0] == 0xEF &&
(unsigned char)start[1] == 0xBB &&
(unsigned char)start[2] == 0xBF) {
start += 3;
}
#endif
start = lskip(rstrip(start));
if (*start == ';' || *start == '#') {
/* Per Python configparser, allow both ; and # comments at the
start of a line */
}
#if INI_ALLOW_MULTILINE
else if (*prev_name && *start && start > line) {
/* Non-blank line with leading whitespace, treat as continuation
of previous name's value (as per Python configparser). */
if (!handler(user, section, prev_name, start) && !error)
error = lineno;
}
#endif
else if (*start == '[') {
/* A "[section]" line */
end = find_chars_or_comment(start + 1, "]");
if (*end == ']') {
*end = '\0';
strncpy0(section, start + 1, sizeof(section));
*prev_name = '\0';
}
else if (!error) {
/* No ']' found on section line */
error = lineno;
}
}
else if (*start) {
/* Not a comment, must be a name[=:]value pair */
end = find_chars_or_comment(start, "=:");
if (*end == '=' || *end == ':') {
*end = '\0';
name = rstrip(start);
value = lskip(end + 1);
#if INI_ALLOW_INLINE_COMMENTS
end = find_chars_or_comment(value, NULL);
if (*end)
*end = '\0';
#endif
rstrip(value);
/* Valid name[=:]value pair found, call handler */
strncpy0(prev_name, name, sizeof(prev_name));
if (!handler(user, section, name, value) && !error)
error = lineno;
memset(value, 0, strlen(value));
}
else if (!error) {
/* No '=' or ':' found on name[=:]value line */
error = lineno;
}
}
#if INI_STOP_ON_FIRST_ERROR
if (error)
break;
#endif
}
#if !INI_USE_STACK
free(line);
#endif
return error;
}
/* See documentation in header file. */
int ini_parse_file(FILE* file, ini_handler handler, void* user)
{
return ini_parse_stream((ini_reader)fgets, file, handler, user);
}
/* See documentation in header file. */
int ini_parse(const char* filename, ini_handler handler, void* user)
{
FILE* file;
int error;
file = fopen(filename, "r");
if (!file)
return -1;
error = ini_parse_file(file, handler, user);
fclose(file);
return error;
}

93
examples/support/ini.h
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/* inih -- simple .INI file parser
inih is released under the New BSD license (see LICENSE.txt). Go to the project
home page for more info:
https://github.com/benhoyt/inih
*/
#ifndef __INI_H__
#define __INI_H__
/* Make this header file easier to include in C++ code */
#ifdef __cplusplus
extern "C" {
#endif
#include <stdio.h>
/* Typedef for prototype of handler function. */
typedef int (*ini_handler)(void* user, const char* section,
const char* name, const char* value);
/* Typedef for prototype of fgets-style reader function. */
typedef char* (*ini_reader)(char* str, int num, void* stream);
/* Parse given INI-style file. May have [section]s, name=value pairs
(whitespace stripped), and comments starting with ';' (semicolon). Section
is "" if name=value pair parsed before any section heading. name:value
pairs are also supported as a concession to Python's configparser.
For each name=value pair parsed, call handler function with given user
pointer as well as section, name, and value (data only valid for duration
of handler call). Handler should return nonzero on success, zero on error.
Returns 0 on success, line number of first error on parse error (doesn't
stop on first error), -1 on file open error, or -2 on memory allocation
error (only when INI_USE_STACK is zero).
*/
int ini_parse(const char* filename, ini_handler handler, void* user);
/* Same as ini_parse(), but takes a FILE* instead of filename. This doesn't
close the file when it's finished -- the caller must do that. */
int ini_parse_file(FILE* file, ini_handler handler, void* user);
/* Same as ini_parse(), but takes an ini_reader function pointer instead of
filename. Used for implementing custom or string-based I/O. */
int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
void* user);
/* Nonzero to allow multi-line value parsing, in the style of Python's
configparser. If allowed, ini_parse() will call the handler with the same
name for each subsequent line parsed. */
#ifndef INI_ALLOW_MULTILINE
#define INI_ALLOW_MULTILINE 1
#endif
/* Nonzero to allow a UTF-8 BOM sequence (0xEF 0xBB 0xBF) at the start of
the file. See http://code.google.com/p/inih/issues/detail?id=21 */
#ifndef INI_ALLOW_BOM
#define INI_ALLOW_BOM 1
#endif
/* Nonzero to allow inline comments (with valid inline comment characters
specified by INI_INLINE_COMMENT_PREFIXES). Set to 0 to turn off and match
Python 3.2+ configparser behaviour. */
#ifndef INI_ALLOW_INLINE_COMMENTS
#define INI_ALLOW_INLINE_COMMENTS 1
#endif
#ifndef INI_INLINE_COMMENT_PREFIXES
#define INI_INLINE_COMMENT_PREFIXES ";"
#endif
/* Nonzero to use stack, zero to use heap (malloc/free). */
#ifndef INI_USE_STACK
#define INI_USE_STACK 1
#endif
/* Stop parsing on first error (default is to keep parsing). */
#ifndef INI_STOP_ON_FIRST_ERROR
#define INI_STOP_ON_FIRST_ERROR 0
#endif
/* Maximum line length for any line in INI file. */
#ifndef INI_MAX_LINE
#define INI_MAX_LINE 2000
#endif
#ifdef __cplusplus
}
#endif
#endif /* __INI_H__ */

458
examples/support/shared.c
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#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_destroy_notify(struct wl_listener *listener, void *data) {
struct keyboard_state *kbstate = wl_container_of(listener, kbstate, destroy);
struct compositor_state *state = kbstate->compositor;
if (state->input_remove_cb) {
state->input_remove_cb(state, kbstate->device);
}
wl_list_remove(&kbstate->link);
wl_list_remove(&kbstate->destroy.link);
wl_list_remove(&kbstate->key.link);
free(kbstate);
}
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->destroy.notify = keyboard_destroy_notify;
wl_signal_add(&device->events.destroy, &kbstate->destroy);
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, event->y);
}
}
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_destroy_notify(struct wl_listener *listener, void *data) {
struct pointer_state *pstate = wl_container_of(listener, pstate, destroy);
struct compositor_state *state = pstate->compositor;
if (state->input_remove_cb) {
state->input_remove_cb(state, pstate->device);
}
wl_list_remove(&pstate->link);
wl_list_remove(&pstate->destroy.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 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->destroy.notify = pointer_destroy_notify;
wl_signal_add(&device->events.destroy, &pstate->destroy);
pstate->motion.notify = pointer_motion_notify;
wl_signal_add(&device->pointer->events.motion, &pstate->motion);
pstate->motion_absolute.notify = pointer_motion_absolute_notify;
wl_signal_add(&device->pointer->events.motion_absolute, &pstate->motion_absolute);
pstate->button.notify = pointer_button_notify;
wl_signal_add(&device->pointer->events.button, &pstate->button);
pstate->axis.notify = pointer_axis_notify;
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->touch_id, event->x, event->y);
}
}
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->touch_id, event->x, event->y);
}
}
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->touch_id);
}
}
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->touch_id);
}
}
static void touch_destroy_notify(struct wl_listener *listener, void *data) {
struct touch_state *tstate = wl_container_of(listener, tstate, destroy);
struct compositor_state *state = tstate->compositor;
if (state->input_remove_cb) {
state->input_remove_cb(state, tstate->device);
}
wl_list_remove(&tstate->link);
wl_list_remove(&tstate->destroy.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 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->destroy.notify = touch_destroy_notify;
wl_signal_add(&device->events.destroy, &tstate->destroy);
tstate->down.notify = touch_down_notify;
wl_signal_add(&device->touch->events.down, &tstate->down);
tstate->motion.notify = touch_motion_notify;
wl_signal_add(&device->touch->events.motion, &tstate->motion);
tstate->up.notify = touch_up_notify;
wl_signal_add(&device->touch->events.up, &tstate->up);
tstate->cancel.notify = touch_cancel_notify;
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_destroy_notify(struct wl_listener *listener, void *data) {
struct tablet_tool_state *tstate = wl_container_of(listener, tstate, destroy);
struct compositor_state *state = tstate->compositor;
if (state->input_remove_cb) {
state->input_remove_cb(state, tstate->device);
}
wl_list_remove(&tstate->link);
wl_list_remove(&tstate->destroy.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_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->destroy.notify = tablet_tool_destroy_notify;
wl_signal_add(&device->events.destroy, &tstate->destroy);
tstate->axis.notify = tablet_tool_axis_notify;
wl_signal_add(&device->tablet_tool->events.axis, &tstate->axis);
tstate->proximity.notify = tablet_tool_proximity_notify;
wl_signal_add(&device->tablet_tool->events.proximity, &tstate->proximity);
//tstate->tip.notify = tablet_tool_tip_notify;
//wl_signal_add(&device->tablet_tool->events.tip, &tstate->tip);
tstate->button.notify = tablet_tool_button_notify;
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_ring_notify(struct wl_listener *listener, void *data) {
struct wlr_event_tablet_pad_ring *event = data;
struct tablet_pad_state *pstate = wl_container_of(listener, pstate, ring);
if (pstate->compositor->pad_ring_cb) {
pstate->compositor->pad_ring_cb(pstate, event->ring, event->position);
}
}
static void tablet_pad_destroy_notify(struct wl_listener *listener, void *data) {
struct tablet_pad_state *pstate = wl_container_of(listener, pstate, destroy);
struct compositor_state *state = pstate->compositor;
if (state->input_remove_cb) {
state->input_remove_cb(state, pstate->device);
}
wl_list_remove(&pstate->link);
wl_list_remove(&pstate->destroy.link);
wl_list_remove(&pstate->button.link);
free(pstate);
}
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->destroy.notify = tablet_pad_destroy_notify;
wl_signal_add(&device->events.destroy, &pstate->destroy);
pstate->button.notify = tablet_pad_button_notify;
wl_signal_add(&device->tablet_pad->events.button, &pstate->button);
pstate->ring.notify = tablet_pad_ring_notify;
wl_signal_add(&device->tablet_pad->events.ring, &pstate->ring);
wl_list_insert(&state->tablet_pads, &pstate->link);
}
static void new_input_notify(struct wl_listener *listener, void *data) {
struct wlr_input_device *device = data;
struct compositor_state *state = wl_container_of(listener, state, new_input);
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 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_destroy_notify(struct wl_listener *listener, void *data) {
struct output_state *ostate = wl_container_of(listener, ostate, destroy);
struct compositor_state *state = ostate->compositor;
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);
}
static void new_output_notify(struct wl_listener *listener, void *data) {
struct wlr_output *output = data;
struct compositor_state *state = wl_container_of(listener, state, new_output);
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->destroy.notify = output_destroy_notify;
wl_signal_add(&output->events.destroy, &ostate->destroy);
ostate->frame.notify = output_frame_notify;
wl_signal_add(&output->events.frame, &ostate->frame);
ostate->resolution.notify = output_resolution_notify;
wl_signal_add(&output->events.mode, &ostate->resolution);
wl_list_insert(&state->outputs, &ostate->link);
if (state->output_add_cb) {
state->output_add_cb(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);
wl_list_init(&state->outputs);
struct wlr_backend *wlr = wlr_backend_autocreate(state->display);
if (!wlr) {
exit(1);
}
state->backend = wlr;
wl_signal_add(&wlr->events.new_input, &state->new_input);
state->new_input.notify = new_input_notify;
wl_signal_add(&wlr->events.new_output, &state->new_output);
state->new_output.notify = new_output_notify;
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) {
wl_display_destroy(state->display);
}

146
examples/support/shared.h
View File

@ -1,146 +0,0 @@
#ifndef _EXAMPLE_SHARED_H
#define _EXAMPLE_SHARED_H
#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200112L
#endif
#include <time.h>
#include <stdbool.h>
#include <xkbcommon/xkbcommon.h>
#include <wayland-server-protocol.h>
#include <wlr/backend.h>
#include <wlr/backend/session.h>
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_input_device.h>
struct output_state {
struct compositor_state *compositor;
struct wlr_output *output;
struct wl_listener destroy;
struct wl_listener frame;
struct wl_listener resolution;
struct timespec last_frame;
struct wl_list link;
void *data;
};
struct keyboard_state {
struct compositor_state *compositor;
struct wlr_input_device *device;
struct wl_listener destroy;
struct wl_listener key;
struct wl_list link;
void *data;
};
struct pointer_state {
struct compositor_state *compositor;
struct wlr_input_device *device;
struct wl_listener destroy;
struct wl_listener motion;
struct wl_listener motion_absolute;
struct wl_listener button;
struct wl_listener axis;
struct wl_list link;
void *data;
};
struct touch_state {
struct compositor_state *compositor;
struct wlr_input_device *device;
struct wl_listener destroy;
struct wl_listener down;
struct wl_listener up;
struct wl_listener motion;
struct wl_listener cancel;
struct wl_list link;
void *data;
};
struct tablet_tool_state {
struct compositor_state *compositor;
struct wlr_input_device *device;
struct wl_listener destroy;
struct wl_listener axis;
struct wl_listener proximity;
struct wl_listener tip;
struct wl_listener button;
struct wl_list link;
void *data;
};
struct tablet_pad_state {
struct compositor_state *compositor;
struct wlr_input_device *device;
struct wl_listener destroy;
struct wl_listener button;
struct wl_listener ring;
struct wl_list link;
void *data;
};
struct compositor_state {
void (*input_add_cb)(struct compositor_state *compositor,
struct wlr_input_device *device);
void (*input_remove_cb)(struct compositor_state *compositor,
struct wlr_input_device *device);
void (*output_add_cb)(struct output_state *s);
void (*keyboard_add_cb)(struct keyboard_state *s);
void (*output_frame_cb)(struct output_state *s, struct timespec *ts);
void (*output_remove_cb)(struct output_state *s);
void (*output_resolution_cb)(struct compositor_state *compositor,
struct output_state *s);
void (*keyboard_remove_cb)(struct keyboard_state *s);
void (*keyboard_key_cb)(struct keyboard_state *s, uint32_t keycode,
xkb_keysym_t sym, enum wlr_key_state key_state, uint64_t time_usec);
void (*pointer_motion_cb)(struct pointer_state *s,
double d_x, double d_y);
void (*pointer_motion_absolute_cb)(struct pointer_state *s,
double x, double y);
void (*pointer_button_cb)(struct pointer_state *s,
uint32_t button, enum wlr_button_state state);
void (*pointer_axis_cb)(struct pointer_state *s,
enum wlr_axis_source source,
enum wlr_axis_orientation orientation,
double delta);
void (*touch_down_cb)(struct touch_state *s,
int32_t touch_id, double x, double y);
void (*touch_motion_cb)(struct touch_state *s,
int32_t touch_id, double x, double y);
void (*touch_up_cb)(struct touch_state *s, int32_t touch_id);
void (*touch_cancel_cb)(struct touch_state *s, int32_t touch_id);
void (*tool_axis_cb)(struct tablet_tool_state *s,
struct wlr_event_tablet_tool_axis *event);
void (*tool_proximity_cb)(struct tablet_tool_state *s,
enum wlr_tablet_tool_proximity_state proximity);
void (*tool_tip_cb)(struct tablet_tool_state *s,
enum wlr_tablet_tool_tip_state state);
void (*tool_button_cb)(struct tablet_tool_state *s,
uint32_t button, enum wlr_button_state state);
void (*pad_button_cb)(struct tablet_pad_state *s,
uint32_t button, enum wlr_button_state state);
void (*pad_ring_cb)(struct tablet_pad_state *s,
uint32_t ring, double position);
struct wl_display *display;
struct wl_event_loop *event_loop;
struct wlr_backend *backend;
struct wlr_session *session;
struct wl_list keyboards;
struct wl_list pointers;
struct wl_list touch;
struct wl_list tablet_tools;
struct wl_list tablet_pads;
struct wl_listener new_input;
struct timespec last_frame;
struct wl_listener new_output;
struct wl_list outputs;
void *data;
};
void compositor_init(struct compositor_state *state);
void compositor_fini(struct compositor_state *state);
#endif

277
examples/tablet.c
View File

@ -1,4 +1,4 @@
#define _POSIX_C_SOURCE 199309L #define _POSIX_C_SOURCE 200112L
#define _XOPEN_SOURCE 500 #define _XOPEN_SOURCE 500
#include <GLES2/gl2.h> #include <GLES2/gl2.h>
#include <math.h> #include <math.h>
@ -15,14 +15,14 @@
#include <wlr/types/wlr_box.h> #include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_matrix.h> #include <wlr/types/wlr_matrix.h>
#include <wlr/types/wlr_output.h> #include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_tablet_pad.h> #include <wlr/types/wlr_tablet_pad.h>
#include <wlr/types/wlr_tablet_tool.h> #include <wlr/types/wlr_tablet_tool.h>
#include <wlr/util/log.h> #include <wlr/util/log.h>
#include <xkbcommon/xkbcommon.h> #include <xkbcommon/xkbcommon.h>
#include "support/cat.h"
#include "support/shared.h"
struct sample_state { struct sample_state {
struct wl_display *display;
struct wlr_renderer *renderer; struct wlr_renderer *renderer;
bool proximity, tap, button; bool proximity, tap, button;
double distance; double distance;
@ -34,12 +34,55 @@ struct sample_state {
struct wl_list link; struct wl_list link;
float tool_color[4]; float tool_color[4];
float pad_color[4]; float pad_color[4];
struct timespec last_frame;
struct wl_listener new_output;
struct wl_listener new_input;
struct wl_list tablet_tools;
struct wl_list tablet_pads;
}; };
static void handle_output_frame(struct output_state *output, struct timespec *ts) { struct tablet_tool_state {
struct compositor_state *state = output->compositor; struct sample_state *sample;
struct sample_state *sample = state->data; struct wlr_input_device *device;
struct wlr_output *wlr_output = output->output; struct wl_listener destroy;
struct wl_listener axis;
struct wl_listener proximity;
struct wl_listener tip;
struct wl_listener button;
struct wl_list link;
void *data;
};
struct tablet_pad_state {
struct sample_state *sample;
struct wlr_input_device *device;
struct wl_listener destroy;
struct wl_listener button;
struct wl_listener ring;
struct wl_list link;
void *data;
};
struct sample_output {
struct sample_state *sample;
struct wlr_output *output;
struct wl_listener frame;
struct wl_listener destroy;
};
struct sample_keyboard {
struct sample_state *sample;
struct wlr_input_device *device;
struct wl_listener key;
struct wl_listener destroy;
};
static void output_frame_notify(struct wl_listener *listener, void *data) {
struct sample_output *sample_output = wl_container_of(listener, sample_output, frame);
struct sample_state *sample = sample_output->sample;
struct wlr_output *wlr_output = sample_output->output;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
int32_t width, height; int32_t width, height;
wlr_output_effective_resolution(wlr_output, &width, &height); wlr_output_effective_resolution(wlr_output, &width, &height);
@ -88,11 +131,13 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
wlr_renderer_end(sample->renderer); wlr_renderer_end(sample->renderer);
wlr_output_swap_buffers(wlr_output, NULL, NULL); wlr_output_swap_buffers(wlr_output, NULL, NULL);
sample->last_frame = now;
} }
static void handle_tool_axis(struct tablet_tool_state *tstate, static void tablet_tool_axis_notify(struct wl_listener *listener, void *data) {
struct wlr_event_tablet_tool_axis *event) { struct tablet_tool_state *tstate = wl_container_of(listener, tstate, axis);
struct sample_state *sample = tstate->compositor->data; struct wlr_event_tablet_tool_axis *event = data;
struct sample_state *sample = tstate->sample;
if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_X)) { if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_X)) {
sample->x = event->x; sample->x = event->x;
} }
@ -113,21 +158,23 @@ static void handle_tool_axis(struct tablet_tool_state *tstate,
} }
} }
static void handle_tool_proximity(struct tablet_tool_state *tstate, static void tablet_tool_proximity_notify(struct wl_listener *listener, void *data) {
enum wlr_tablet_tool_proximity_state state) { struct tablet_tool_state *tstate = wl_container_of(listener, tstate, proximity);
struct sample_state *sample = tstate->compositor->data; struct wlr_event_tablet_tool_proximity *event = data;
sample->proximity = state == WLR_TABLET_TOOL_PROXIMITY_IN; struct sample_state *sample = tstate->sample;
sample->proximity = event->state == WLR_TABLET_TOOL_PROXIMITY_IN;
} }
static void handle_tool_button(struct tablet_tool_state *tstate, static void tablet_tool_button_notify(struct wl_listener *listener, void *data) {
uint32_t button, enum wlr_button_state state) { struct tablet_tool_state *tstate = wl_container_of(listener, tstate, button);
struct sample_state *sample = tstate->compositor->data; struct wlr_event_tablet_tool_button *event = data;
if (state == WLR_BUTTON_RELEASED) { struct sample_state *sample = tstate->sample;
if (event->state == WLR_BUTTON_RELEASED) {
sample->button = false; sample->button = false;
} else { } else {
sample->button = true; sample->button = true;
for (size_t i = 0; i < 3; ++i) { for (size_t i = 0; i < 3; ++i) {
if (button % 3 == i) { if (event->button % 3 == i) {
sample->tool_color[i] = 0; sample->tool_color[i] = 0;
} else { } else {
sample->tool_color[i] = 1; sample->tool_color[i] = 1;
@ -136,15 +183,16 @@ static void handle_tool_button(struct tablet_tool_state *tstate,
} }
} }
static void handle_pad_button(struct tablet_pad_state *pstate, static void tablet_pad_button_notify(struct wl_listener *listener, void *data) {
uint32_t button, enum wlr_button_state state) { struct tablet_pad_state *pstate = wl_container_of(listener, pstate, button);
struct sample_state *sample = pstate->compositor->data; struct wlr_event_tablet_pad_button *event = data;
struct sample_state *sample = pstate->sample;
float default_color[4] = { 0.5, 0.5, 0.5, 1.0 }; float default_color[4] = { 0.5, 0.5, 0.5, 1.0 };
if (state == WLR_BUTTON_RELEASED) { if (event->state == WLR_BUTTON_RELEASED) {
memcpy(sample->pad_color, default_color, sizeof(default_color)); memcpy(sample->pad_color, default_color, sizeof(default_color));
} else { } else {
for (size_t i = 0; i < 3; ++i) { for (size_t i = 0; i < 3; ++i) {
if (button % 3 == i) { if (event->button % 3 == i) {
sample->pad_color[i] = 0; sample->pad_color[i] = 0;
} else { } else {
sample->pad_color[i] = 1; sample->pad_color[i] = 1;
@ -153,56 +201,177 @@ static void handle_pad_button(struct tablet_pad_state *pstate,
} }
} }
static void handle_pad_ring(struct tablet_pad_state *pstate, static void tablet_pad_ring_notify(struct wl_listener *listener, void *data) {
uint32_t ring, double position) { struct tablet_pad_state *pstate = wl_container_of(listener, pstate, ring);
struct sample_state *sample = pstate->compositor->data; struct wlr_event_tablet_pad_ring *event = data;
if (position != -1) { struct sample_state *sample = pstate->sample;
sample->ring = -(position * (M_PI / 180.0)); if (event->position != -1) {
sample->ring = -(event->position * (M_PI / 180.0));
} }
} }
static void handle_input_add(struct compositor_state *cstate, static void tablet_tool_destroy_notify(struct wl_listener *listener, void *data) {
struct wlr_input_device *inputdev) { struct tablet_tool_state *tstate = wl_container_of(listener, tstate, destroy);
struct sample_state *sample = cstate->data; wl_list_remove(&tstate->link);
if (inputdev->type == WLR_INPUT_DEVICE_TABLET_TOOL) { wl_list_remove(&tstate->destroy.link);
sample->width_mm = inputdev->width_mm == 0 ? wl_list_remove(&tstate->axis.link);
20 : inputdev->width_mm; wl_list_remove(&tstate->proximity.link);
sample->height_mm = inputdev->height_mm == 0 ? wl_list_remove(&tstate->button.link);
10 : inputdev->height_mm; free(tstate);
}
static void tablet_pad_destroy_notify(struct wl_listener *listener, void *data) {
struct tablet_pad_state *pstate = wl_container_of(listener, pstate, destroy);
wl_list_remove(&pstate->link);
wl_list_remove(&pstate->destroy.link);
wl_list_remove(&pstate->ring.link);
wl_list_remove(&pstate->button.link);
free(pstate);
}
void output_remove_notify(struct wl_listener *listener, void *data) {
struct sample_output *sample_output = wl_container_of(listener, sample_output, destroy);
wl_list_remove(&sample_output->frame.link);
wl_list_remove(&sample_output->destroy.link);
free(sample_output);
}
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);
struct sample_output *sample_output = calloc(1, sizeof(struct sample_output));
if (!wl_list_empty(&output->modes)) {
struct wlr_output_mode *mode = wl_container_of(output->modes.prev, mode, link);
wlr_output_set_mode(output, mode);
}
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;
}
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_event_keyboard_key *event = data;
uint32_t keycode = event->keycode + 8;
const xkb_keysym_t *syms;
int nsyms = xkb_state_key_get_syms(keyboard->device->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);
}
} }
} }
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);
}
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->device = device;
keyboard->sample = sample;
wl_signal_add(&device->events.destroy, &keyboard->destroy);
keyboard->destroy.notify = keyboard_destroy_notify;
wl_signal_add(&device->keyboard->events.key, &keyboard->key);
keyboard->key.notify = keyboard_key_notify;
struct xkb_rule_names rules = { 0 };
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);
break;
case WLR_INPUT_DEVICE_TABLET_PAD:;
struct tablet_pad_state *pstate = calloc(sizeof(struct tablet_pad_state), 1);
pstate->device = device;
pstate->sample = sample;
pstate->destroy.notify = tablet_pad_destroy_notify;
wl_signal_add(&device->events.destroy, &pstate->destroy);
pstate->button.notify = tablet_pad_button_notify;
wl_signal_add(&device->tablet_pad->events.button, &pstate->button);
pstate->ring.notify = tablet_pad_ring_notify;
wl_signal_add(&device->tablet_pad->events.ring, &pstate->ring);
wl_list_insert(&sample->tablet_pads, &pstate->link);
break;
case WLR_INPUT_DEVICE_TABLET_TOOL:
sample->width_mm = device->width_mm == 0 ?
20 : device->width_mm;
sample->height_mm = device->height_mm == 0 ?
10 : device->height_mm;
struct tablet_tool_state *tstate = calloc(sizeof(struct tablet_tool_state), 1);
tstate->device = device;
tstate->sample = sample;
tstate->destroy.notify = tablet_tool_destroy_notify;
wl_signal_add(&device->events.destroy, &tstate->destroy);
tstate->axis.notify = tablet_tool_axis_notify;
wl_signal_add(&device->tablet_tool->events.axis, &tstate->axis);
tstate->proximity.notify = tablet_tool_proximity_notify;
wl_signal_add(&device->tablet_tool->events.proximity, &tstate->proximity);
tstate->button.notify = tablet_tool_button_notify;
wl_signal_add(&device->tablet_tool->events.button, &tstate->button);
wl_list_insert(&sample->tablet_tools, &tstate->link);
break;
default:
break;
}
}
int main(int argc, char *argv[]) { int main(int argc, char *argv[]) {
wlr_log_init(L_DEBUG, NULL); wlr_log_init(L_DEBUG, NULL);
struct wl_display *display = wl_display_create();
struct sample_state state = { struct sample_state state = {
.display = display,
.tool_color = { 1, 1, 1, 1 }, .tool_color = { 1, 1, 1, 1 },
.pad_color = { 0.5, 0.5, 0.5, 1.0 } .pad_color = { 0.5, 0.5, 0.5, 1.0 }
}; };
struct compositor_state compositor = { wl_list_init(&state.tablet_pads);
.data = &state, wl_list_init(&state.tablet_tools);
.output_frame_cb = handle_output_frame, struct wlr_backend *wlr = wlr_backend_autocreate(display);
.tool_axis_cb = handle_tool_axis, if (!wlr) {
.tool_proximity_cb = handle_tool_proximity, exit(1);
.tool_button_cb = handle_tool_button, }
.pad_button_cb = handle_pad_button,
.pad_ring_cb = handle_pad_ring,
.input_add_cb = handle_input_add,
0
};
compositor_init(&compositor);
state.renderer = wlr_backend_get_renderer(compositor.backend); 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);
state.renderer = wlr_backend_get_renderer(wlr);
if (!state.renderer) { if (!state.renderer) {
wlr_log(L_ERROR, "Could not start compositor, OOM"); wlr_log(L_ERROR, "Could not start compositor, OOM");
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
if (!wlr_backend_start(compositor.backend)) { if (!wlr_backend_start(wlr)) {
wlr_log(L_ERROR, "Failed to start backend"); wlr_log(L_ERROR, "Failed to start backend");
wlr_backend_destroy(compositor.backend); wlr_backend_destroy(wlr);
exit(1); exit(1);
} }
wl_display_run(compositor.display); wl_display_run(display);
wlr_renderer_destroy(state.renderer); wlr_renderer_destroy(state.renderer);
compositor_fini(&compositor); wl_display_destroy(display);
} }

223
examples/touch.c
View File

@ -1,4 +1,4 @@
#define _POSIX_C_SOURCE 199309L #define _POSIX_C_SOURCE 200112L
#define _XOPEN_SOURCE 500 #define _XOPEN_SOURCE 500
#include <GLES2/gl2.h> #include <GLES2/gl2.h>
#include <math.h> #include <math.h>
@ -12,18 +12,24 @@
#include <wayland-server.h> #include <wayland-server.h>
#include <wlr/backend.h> #include <wlr/backend.h>
#include <wlr/backend/session.h> #include <wlr/backend/session.h>
#include <wlr/types/wlr_output.h>
#include <wlr/render/wlr_renderer.h> #include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_list.h> #include <wlr/types/wlr_list.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_matrix.h> #include <wlr/types/wlr_matrix.h>
#include <wlr/util/log.h> #include <wlr/util/log.h>
#include <xkbcommon/xkbcommon.h> #include <xkbcommon/xkbcommon.h>
#include "support/cat.h" #include "cat.h"
#include "support/shared.h"
struct sample_state { struct sample_state {
struct wl_display *display;
struct wlr_renderer *renderer; struct wlr_renderer *renderer;
struct wlr_texture *cat_texture; struct wlr_texture *cat_texture;
struct wl_list touch_points; struct wl_list touch_points;
struct timespec last_frame;
struct wl_listener new_output;
struct wl_listener new_input;
struct wl_list touch;
}; };
struct touch_point { struct touch_point {
@ -32,10 +38,38 @@ struct touch_point {
struct wl_list link; struct wl_list link;
}; };
static void handle_output_frame(struct output_state *output, struct timespec *ts) { struct touch_state {
struct compositor_state *state = output->compositor; struct sample_state *sample;
struct sample_state *sample = state->data; struct wlr_input_device *device;
struct wlr_output *wlr_output = output->output; struct wl_listener destroy;
struct wl_listener down;
struct wl_listener up;
struct wl_listener motion;
struct wl_list link;
void *data;
};
struct sample_output {
struct sample_state *sample;
struct wlr_output *output;
struct wl_listener frame;
struct wl_listener destroy;
};
struct sample_keyboard {
struct sample_state *sample;
struct wlr_input_device *device;
struct wl_listener key;
struct wl_listener destroy;
};
static void output_frame_notify(struct wl_listener *listener, void *data) {
struct sample_output *sample_output = wl_container_of(listener, sample_output, frame);
struct sample_state *sample = sample_output->sample;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
struct wlr_output *wlr_output = sample_output->output;
int32_t width, height; int32_t width, height;
wlr_output_effective_resolution(wlr_output, &width, &height); wlr_output_effective_resolution(wlr_output, &width, &height);
@ -57,57 +91,172 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
wlr_renderer_end(sample->renderer); wlr_renderer_end(sample->renderer);
wlr_output_swap_buffers(wlr_output, NULL, NULL); wlr_output_swap_buffers(wlr_output, NULL, NULL);
sample->last_frame = now;
} }
static void handle_touch_down(struct touch_state *tstate, static void touch_down_notify(struct wl_listener *listener, void *data) {
int32_t touch_id, double x, double y) { struct wlr_event_touch_motion *event = data;
struct sample_state *sample = tstate->compositor->data; struct touch_state *tstate = wl_container_of(listener, tstate, down);
struct sample_state *sample = tstate->sample;
struct touch_point *point = calloc(1, sizeof(struct touch_point)); struct touch_point *point = calloc(1, sizeof(struct touch_point));
point->touch_id = touch_id; point->touch_id = event->touch_id;
point->x = x; point->x = event->x;
point->y = y; point->y = event->y;
wl_list_insert(&sample->touch_points, &point->link); wl_list_insert(&sample->touch_points, &point->link);
} }
static void handle_touch_up(struct touch_state *tstate, int32_t touch_id) { static void touch_up_notify(struct wl_listener *listener, void *data ) {
struct sample_state *sample = tstate->compositor->data; struct wlr_event_touch_up *event = data;
struct touch_state *tstate = wl_container_of(listener, tstate, up);
struct sample_state *sample = tstate->sample;
struct touch_point *point, *tmp; struct touch_point *point, *tmp;
wl_list_for_each_safe(point, tmp, &sample->touch_points, link) { wl_list_for_each_safe(point, tmp, &sample->touch_points, link) {
if (point->touch_id == touch_id) { if (point->touch_id == event->touch_id) {
wl_list_remove(&point->link); wl_list_remove(&point->link);
break; break;
} }
} }
} }
static void handle_touch_motion(struct touch_state *tstate, static void touch_motion_notify(struct wl_listener *listener, void *data) {
int32_t touch_id, double x, double y) { struct wlr_event_touch_motion *event = data;
struct sample_state *sample = tstate->compositor->data; struct touch_state *tstate = wl_container_of(listener, tstate, motion);
struct sample_state *sample = tstate->sample;
struct touch_point *point; struct touch_point *point;
wl_list_for_each(point, &sample->touch_points, link) { wl_list_for_each(point, &sample->touch_points, link) {
if (point->touch_id == touch_id) { if (point->touch_id == event->touch_id) {
point->x = x; point->x = event->x;
point->y = y; point->y = event->y;
break; break;
} }
} }
} }
static void touch_destroy_notify(struct wl_listener *listener, void *data) {
struct touch_state *tstate = wl_container_of(listener, tstate, destroy);
wl_list_remove(&tstate->link);
wl_list_remove(&tstate->destroy.link);
wl_list_remove(&tstate->down.link);
wl_list_remove(&tstate->up.link);
wl_list_remove(&tstate->motion.link);
free(tstate);
}
void output_remove_notify(struct wl_listener *listener, void *data) {
struct sample_output *sample_output = wl_container_of(listener, sample_output, destroy);
wl_list_remove(&sample_output->frame.link);
wl_list_remove(&sample_output->destroy.link);
free(sample_output);
}
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);
struct sample_output *sample_output = calloc(1, sizeof(struct sample_output));
if (!wl_list_empty(&output->modes)) {
struct wlr_output_mode *mode = wl_container_of(output->modes.prev, mode, link);
wlr_output_set_mode(output, mode);
}
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;
}
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_event_keyboard_key *event = data;
uint32_t keycode = event->keycode + 8;
const xkb_keysym_t *syms;
int nsyms = xkb_state_key_get_syms(keyboard->device->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);
}
}
}
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);
}
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->device = device;
keyboard->sample = sample;
wl_signal_add(&device->events.destroy, &keyboard->destroy);
keyboard->destroy.notify = keyboard_destroy_notify;
wl_signal_add(&device->keyboard->events.key, &keyboard->key);
keyboard->key.notify = keyboard_key_notify;
struct xkb_rule_names rules = { 0 };
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);
break;
case WLR_INPUT_DEVICE_TOUCH:;
struct touch_state *tstate = calloc(sizeof(struct touch_state), 1);
tstate->device = device;
tstate->sample = sample;
tstate->destroy.notify = touch_destroy_notify;
wl_signal_add(&device->events.destroy, &tstate->destroy);
tstate->down.notify = touch_down_notify;
wl_signal_add(&device->touch->events.down, &tstate->down);
tstate->motion.notify = touch_motion_notify;
wl_signal_add(&device->touch->events.motion, &tstate->motion);
tstate->up.notify = touch_up_notify;
wl_signal_add(&device->touch->events.up, &tstate->up);
wl_list_insert(&sample->touch, &tstate->link);
break;
default:
break;
}
}
int main(int argc, char *argv[]) { int main(int argc, char *argv[]) {
wlr_log_init(L_DEBUG, NULL); wlr_log_init(L_DEBUG, NULL);
struct sample_state state; struct wl_display *display = wl_display_create();
wl_list_init(&state.touch_points); struct sample_state state = {
.display = display
struct compositor_state compositor = { 0,
.data = &state,
.output_frame_cb = handle_output_frame,
.touch_down_cb = handle_touch_down,
.touch_up_cb = handle_touch_up,
.touch_motion_cb = handle_touch_motion,
}; };
compositor_init(&compositor); wl_list_init(&state.touch_points);
wl_list_init(&state.touch);
state.renderer = wlr_backend_get_renderer(compositor.backend); struct wlr_backend *wlr = wlr_backend_autocreate(display);
if (!wlr) {
exit(1);
}
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);
state.renderer = wlr_backend_get_renderer(wlr);
if (!state.renderer) { if (!state.renderer) {
wlr_log(L_ERROR, "Could not start compositor, OOM"); wlr_log(L_ERROR, "Could not start compositor, OOM");
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
@ -120,14 +269,14 @@ int main(int argc, char *argv[]) {
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
if (!wlr_backend_start(compositor.backend)) { if (!wlr_backend_start(wlr)) {
wlr_log(L_ERROR, "Failed to start backend"); wlr_log(L_ERROR, "Failed to start backend");
wlr_backend_destroy(compositor.backend); wlr_backend_destroy(wlr);
exit(1); exit(1);
} }
wl_display_run(compositor.display); wl_display_run(display);
wlr_texture_destroy(state.cat_texture); wlr_texture_destroy(state.cat_texture);
wlr_renderer_destroy(state.renderer); wlr_renderer_destroy(state.renderer);
compositor_fini(&compositor); wl_display_destroy(display);
} }