wlroots/examples/pointer.c

344 lines
10 KiB
C
Raw Normal View History

2017-06-13 16:21:36 +00:00
#define _POSIX_C_SOURCE 199309L
#define _XOPEN_SOURCE 500
#include <assert.h>
#include <GLES2/gl2.h>
#include <math.h>
2017-06-13 16:21:36 +00:00
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
2017-06-13 16:21:36 +00:00
#include <unistd.h>
#include <wayland-server-protocol.h>
#include <wayland-server.h>
2017-06-13 16:21:36 +00:00
#include <wlr/backend.h>
2017-07-11 07:18:34 +00:00
#include <wlr/backend/session.h>
#include <wlr/render/gles2.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_cursor.h>
2017-06-21 14:27:45 +00:00
#include <wlr/types/wlr_keyboard.h>
#include <wlr/types/wlr_list.h>
#include <wlr/types/wlr_matrix.h>
2017-08-20 20:02:39 +00:00
#include <wlr/types/wlr_output_layout.h>
2017-06-21 18:15:06 +00:00
#include <wlr/util/log.h>
#include <wlr/xcursor.h>
#include <xkbcommon/xkbcommon.h>
2017-11-01 19:47:58 +00:00
#include "support/cat.h"
#include "support/config.h"
#include "support/shared.h"
2017-06-13 16:21:36 +00:00
struct sample_state {
2017-08-20 20:02:39 +00:00
struct compositor_state *compositor;
struct example_config *config;
struct wlr_xcursor *xcursor;
struct wlr_cursor *cursor;
2017-06-26 05:34:15 +00:00
double cur_x, cur_y;
2017-06-13 16:38:57 +00:00
float default_color[4];
float clear_color[4];
2017-08-20 20:02:39 +00:00
struct wlr_output_layout *layout;
struct wl_list devices;
2017-08-20 20:02:39 +00:00
struct wl_listener cursor_motion;
struct wl_listener cursor_motion_absolute;
struct wl_listener cursor_button;
struct wl_listener cursor_axis;
2017-08-27 15:34:25 +00:00
struct wl_listener touch_motion;
struct wl_listener touch_up;
struct wl_listener touch_down;
struct wl_listener touch_cancel;
struct wl_list touch_points;
struct wl_listener tablet_tool_axis;
struct wl_listener tablet_tool_proxmity;
struct wl_listener tablet_tool_tip;
struct wl_listener tablet_tool_button;
2017-08-27 15:34:25 +00:00
};
struct touch_point {
2017-11-16 22:53:52 +00:00
int32_t touch_id;
2017-08-27 15:34:25 +00:00
double x, y;
struct wl_list link;
2017-06-13 16:21:36 +00:00
};
2017-08-29 13:52:11 +00:00
static void warp_to_touch(struct sample_state *sample,
2017-10-29 19:03:56 +00:00
struct wlr_input_device *dev) {
if (wl_list_empty(&sample->touch_points)) {
2017-08-27 21:35:12 +00:00
return;
}
double x = 0, y = 0;
size_t n = 0;
struct touch_point *point;
wl_list_for_each(point, &sample->touch_points, link) {
2017-08-27 21:35:12 +00:00
x += point->x;
y += point->y;
n++;
2017-08-27 15:34:25 +00:00
}
x /= n;
y /= n;
2017-08-27 21:35:12 +00:00
wlr_cursor_warp_absolute(sample->cursor, dev, x, y);
2017-08-27 15:34:25 +00:00
}
2017-08-29 13:52:11 +00:00
static void handle_output_frame(struct output_state *output,
2017-10-29 19:03:56 +00:00
struct timespec *ts) {
2017-06-13 16:21:36 +00:00
struct compositor_state *state = output->compositor;
struct sample_state *sample = state->data;
struct wlr_output *wlr_output = output->output;
wlr_output_make_current(wlr_output, NULL);
2017-06-26 05:34:15 +00:00
glClearColor(sample->clear_color[0], sample->clear_color[1],
2017-08-29 13:52:11 +00:00
sample->clear_color[2], sample->clear_color[3]);
glClear(GL_COLOR_BUFFER_BIT);
2017-06-13 16:21:36 +00:00
wlr_output_swap_buffers(wlr_output, NULL, NULL);
2017-06-13 16:21:36 +00:00
}
2017-08-20 20:02:39 +00:00
static void handle_output_add(struct output_state *ostate) {
struct sample_state *sample = ostate->compositor->data;
2017-06-26 05:34:15 +00:00
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);
}
2017-09-05 21:18:37 +00:00
example_config_configure_cursor(sample->config, sample->cursor,
sample->compositor);
2017-10-29 09:39:47 +00:00
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);
2017-06-13 16:21:36 +00:00
}
2017-08-20 20:02:39 +00:00
static void handle_output_remove(struct output_state *ostate) {
struct sample_state *sample = ostate->compositor->data;
wlr_output_layout_remove(sample->layout, ostate->output);
2017-08-25 12:58:02 +00:00
2017-09-05 21:18:37 +00:00
example_config_configure_cursor(sample->config, sample->cursor,
sample->compositor);
2017-08-20 20:02:39 +00:00
}
2017-08-29 13:52:11 +00:00
static void handle_input_add(struct compositor_state *state,
2017-10-29 19:03:56 +00:00
struct wlr_input_device *device) {
2017-08-20 20:02:39 +00:00
struct sample_state *sample = state->data;
2017-08-27 15:34:25 +00:00
if (device->type == WLR_INPUT_DEVICE_POINTER ||
2017-08-28 12:42:39 +00:00
device->type == WLR_INPUT_DEVICE_TOUCH ||
device->type == WLR_INPUT_DEVICE_TABLET_TOOL) {
2017-08-20 20:02:39 +00:00
wlr_cursor_attach_input_device(sample->cursor, device);
2017-09-05 21:18:37 +00:00
example_config_configure_cursor(sample->config, sample->cursor,
sample->compositor);
2017-08-28 14:29:53 +00:00
}
}
2017-08-20 20:02:39 +00:00
static void handle_cursor_motion(struct wl_listener *listener, void *data) {
2017-08-29 13:52:11 +00:00
struct sample_state *sample =
2017-10-29 19:03:56 +00:00
wl_container_of(listener, sample, cursor_motion);
2017-08-20 20:02:39 +00:00
struct wlr_event_pointer_motion *event = data;
2017-08-29 13:52:11 +00:00
wlr_cursor_move(sample->cursor, event->device, event->delta_x,
2017-10-29 19:03:56 +00:00
event->delta_y);
2017-08-20 20:02:39 +00:00
}
2017-08-29 13:52:11 +00:00
static void handle_cursor_motion_absolute(struct wl_listener *listener,
2017-10-29 19:03:56 +00:00
void *data) {
2017-08-29 13:52:11 +00:00
struct sample_state *sample =
2017-10-29 19:03:56 +00:00
wl_container_of(listener, sample, cursor_motion_absolute);
2017-08-20 20:02:39 +00:00
struct wlr_event_pointer_motion_absolute *event = data;
sample->cur_x = event->x;
sample->cur_y = event->y;
2017-06-26 05:34:15 +00:00
wlr_cursor_warp_absolute(sample->cursor, event->device, sample->cur_x,
sample->cur_y);
}
2017-08-20 20:02:39 +00:00
static void handle_cursor_button(struct wl_listener *listener, void *data) {
2017-08-29 13:52:11 +00:00
struct sample_state *sample =
2017-10-29 19:03:56 +00:00
wl_container_of(listener, sample, cursor_button);
2017-08-20 20:02:39 +00:00
struct wlr_event_pointer_button *event = data;
float (*color)[4];
2017-08-20 20:02:39 +00:00
if (event->state == WLR_BUTTON_RELEASED) {
2017-06-13 16:38:57 +00:00
color = &sample->default_color;
2017-08-20 20:02:39 +00:00
memcpy(&sample->clear_color, color, sizeof(*color));
} else {
float red[4] = { 0.25f, 0.25f, 0.25f, 1 };
2017-08-20 20:02:39 +00:00
red[event->button % 3] = 1;
color = &red;
2017-08-20 20:02:39 +00:00
memcpy(&sample->clear_color, color, sizeof(*color));
}
}
2017-08-20 20:02:39 +00:00
static void handle_cursor_axis(struct wl_listener *listener, void *data) {
2017-08-29 13:52:11 +00:00
struct sample_state *sample =
2017-10-29 19:03:56 +00:00
wl_container_of(listener, sample, cursor_axis);
2017-08-20 20:02:39 +00:00
struct wlr_event_pointer_axis *event = data;
2017-06-13 16:38:57 +00:00
for (size_t i = 0; i < 3; ++i) {
2017-08-20 20:02:39 +00:00
sample->default_color[i] += event->delta > 0 ? -0.05f : 0.05f;
2017-06-13 16:38:57 +00:00
if (sample->default_color[i] > 1.0f) {
sample->default_color[i] = 1.0f;
}
if (sample->default_color[i] < 0.0f) {
sample->default_color[i] = 0.0f;
}
}
2017-08-20 20:02:39 +00:00
2017-06-13 16:38:57 +00:00
memcpy(&sample->clear_color, &sample->default_color,
sizeof(sample->clear_color));
}
2017-08-27 15:34:25 +00:00
static void handle_touch_up(struct wl_listener *listener, void *data) {
struct sample_state *sample = wl_container_of(listener, sample, touch_up);
struct wlr_event_touch_up *event = data;
struct touch_point *point, *tmp;
wl_list_for_each_safe(point, tmp, &sample->touch_points, link) {
2017-11-16 22:53:52 +00:00
if (point->touch_id == event->touch_id) {
wl_list_remove(&point->link);
2017-08-27 15:34:25 +00:00
break;
}
}
2017-08-27 21:35:12 +00:00
warp_to_touch(sample, event->device);
2017-08-27 15:34:25 +00:00
}
static void handle_touch_down(struct wl_listener *listener, void *data) {
struct sample_state *sample = wl_container_of(listener, sample, touch_down);
struct wlr_event_touch_down *event = data;
2017-08-28 15:07:54 +00:00
struct touch_point *point = calloc(1, sizeof(struct touch_point));
2017-11-16 22:53:52 +00:00
point->touch_id = event->touch_id;
2018-03-28 15:04:40 +00:00
point->x = event->x;
point->y = event->y;
wl_list_insert(&sample->touch_points, &point->link);
2017-08-27 15:34:25 +00:00
2017-08-27 21:35:12 +00:00
warp_to_touch(sample, event->device);
2017-08-27 15:34:25 +00:00
}
static void handle_touch_motion(struct wl_listener *listener, void *data) {
2017-08-29 13:52:11 +00:00
struct sample_state *sample =
2017-10-29 19:03:56 +00:00
wl_container_of(listener, sample, touch_motion);
2017-08-27 15:34:25 +00:00
struct wlr_event_touch_motion *event = data;
struct touch_point *point;
wl_list_for_each(point, &sample->touch_points, link) {
2017-11-16 22:53:52 +00:00
if (point->touch_id == event->touch_id) {
2018-03-28 15:04:40 +00:00
point->x = event->x;
point->y = event->y;
2017-08-27 15:34:25 +00:00
break;
}
}
2017-08-27 21:35:12 +00:00
warp_to_touch(sample, event->device);
2017-08-27 15:34:25 +00:00
}
static void handle_touch_cancel(struct wl_listener *listener, void *data) {
wlr_log(L_DEBUG, "TODO: touch cancel");
}
static void handle_tablet_tool_axis(struct wl_listener *listener, void *data) {
2017-08-29 13:52:11 +00:00
struct sample_state *sample =
2017-10-29 19:03:56 +00:00
wl_container_of(listener, sample, tablet_tool_axis);
struct wlr_event_tablet_tool_axis *event = data;
2017-08-29 13:52:11 +00:00
if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_X) &&
(event->updated_axes & WLR_TABLET_TOOL_AXIS_Y)) {
2018-03-28 15:40:35 +00:00
wlr_cursor_warp_absolute(sample->cursor,
event->device, event->x, event->y);
}
}
2017-06-13 16:21:36 +00:00
int main(int argc, char *argv[]) {
2018-01-16 03:51:00 +00:00
wlr_log_init(L_DEBUG, NULL);
struct sample_state state = {
2017-06-13 16:38:57 +00:00
.default_color = { 0.25f, 0.25f, 0.25f, 1 },
2017-08-27 15:34:25 +00:00
.clear_color = { 0.25f, 0.25f, 0.25f, 1 },
};
2017-08-20 20:02:39 +00:00
state.config = parse_args(argc, argv);
state.cursor = wlr_cursor_create();
state.layout = wlr_output_layout_create();
wlr_cursor_attach_output_layout(state.cursor, state.layout);
wlr_cursor_map_to_region(state.cursor, state.config->cursor.mapped_box);
wl_list_init(&state.devices);
wl_list_init(&state.touch_points);
2017-08-20 20:02:39 +00:00
2017-08-27 15:34:25 +00:00
// pointer events
2017-08-20 20:02:39 +00:00
wl_signal_add(&state.cursor->events.motion, &state.cursor_motion);
state.cursor_motion.notify = handle_cursor_motion;
2017-08-29 13:52:11 +00:00
wl_signal_add(&state.cursor->events.motion_absolute,
&state.cursor_motion_absolute);
2017-08-20 20:02:39 +00:00
state.cursor_motion_absolute.notify = handle_cursor_motion_absolute;
wl_signal_add(&state.cursor->events.button, &state.cursor_button);
state.cursor_button.notify = handle_cursor_button;
wl_signal_add(&state.cursor->events.axis, &state.cursor_axis);
state.cursor_axis.notify = handle_cursor_axis;
2017-08-27 15:34:25 +00:00
// touch events
wl_signal_add(&state.cursor->events.touch_up, &state.touch_up);
state.touch_up.notify = handle_touch_up;
wl_signal_add(&state.cursor->events.touch_down, &state.touch_down);
state.touch_down.notify = handle_touch_down;
wl_signal_add(&state.cursor->events.touch_motion, &state.touch_motion);
state.touch_motion.notify = handle_touch_motion;
wl_signal_add(&state.cursor->events.touch_cancel, &state.touch_cancel);
state.touch_cancel.notify = handle_touch_cancel;
// tool events
2017-08-29 13:52:11 +00:00
wl_signal_add(&state.cursor->events.tablet_tool_axis,
&state.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;
2017-08-20 20:02:39 +00:00
compositor.output_remove_cb = handle_output_remove;
compositor.output_frame_cb = handle_output_frame;
2017-08-20 20:02:39 +00:00
compositor.input_add_cb = handle_input_add;
state.compositor = &compositor;
2017-06-13 16:21:36 +00:00
struct wlr_xcursor_theme *theme = wlr_xcursor_theme_load("default", 16);
2017-08-08 01:13:04 +00:00
if (!theme) {
wlr_log(L_ERROR, "Failed to load cursor theme");
return 1;
}
2017-08-20 20:02:39 +00:00
state.xcursor = wlr_xcursor_theme_get_cursor(theme, "left_ptr");
if (!state.xcursor) {
2017-08-08 01:13:04 +00:00
wlr_log(L_ERROR, "Failed to load left_ptr cursor");
return 1;
}
2017-10-29 17:14:58 +00:00
struct wlr_xcursor_image *image = state.xcursor->images[0];
wlr_cursor_set_image(state.cursor, image->buffer, image->width * 4,
image->width, image->height, image->hotspot_x, image->hotspot_y, 0);
2017-08-20 20:02:39 +00:00
2017-08-08 01:13:04 +00:00
compositor_init(&compositor);
if (!wlr_backend_start(compositor.backend)) {
wlr_log(L_ERROR, "Failed to start backend");
wlr_backend_destroy(compositor.backend);
exit(1);
}
wl_display_run(compositor.display);
compositor_fini(&compositor);
2017-08-08 01:13:04 +00:00
wlr_xcursor_theme_destroy(theme);
2017-08-20 20:02:39 +00:00
example_config_destroy(state.config);
wlr_cursor_destroy(state.cursor);
wlr_output_layout_destroy(state.layout);
2017-06-13 16:21:36 +00:00
}