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Made tablet standalone

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Timidger 2018-04-20 11:36:12 -04:00
parent c622a0c7fb
commit 7be5dfecc0
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GPG Key ID: 42EF7ECE5FEF1D17
1 changed files with 228 additions and 53 deletions
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281
examples/tablet.c
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@ -1,4 +1,4 @@
#define _POSIX_C_SOURCE 199309L
#define _POSIX_C_SOURCE 200112L
#define _XOPEN_SOURCE 500
#include <GLES2/gl2.h>
#include <math.h>
@ -15,13 +15,14 @@
#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_matrix.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_tool.h>
#include <wlr/util/log.h>
#include <xkbcommon/xkbcommon.h>
#include "support/shared.h"
struct sample_state {
struct wl_display *display;
struct wlr_renderer *renderer;
bool proximity, tap, button;
double distance;
@ -33,12 +34,55 @@ struct sample_state {
struct wl_list link;
float tool_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 compositor_state *state = output->compositor;
struct sample_state *sample = state->data;
struct wlr_output *wlr_output = output->output;
struct tablet_tool_state {
struct sample_state *sample;
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 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;
wlr_output_effective_resolution(wlr_output, &width, &height);
@ -87,11 +131,13 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
wlr_renderer_end(sample->renderer);
wlr_output_swap_buffers(wlr_output, NULL, NULL);
sample->last_frame = now;
}
static void handle_tool_axis(struct tablet_tool_state *tstate,
struct wlr_event_tablet_tool_axis *event) {
struct sample_state *sample = tstate->compositor->data;
static void tablet_tool_axis_notify(struct wl_listener *listener, void *data) {
struct tablet_tool_state *tstate = wl_container_of(listener, tstate, axis);
struct wlr_event_tablet_tool_axis *event = data;
struct sample_state *sample = tstate->sample;
if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_X)) {
sample->x = event->x;
}
@ -112,21 +158,23 @@ static void handle_tool_axis(struct tablet_tool_state *tstate,
}
}
static void handle_tool_proximity(struct tablet_tool_state *tstate,
enum wlr_tablet_tool_proximity_state state) {
struct sample_state *sample = tstate->compositor->data;
sample->proximity = state == WLR_TABLET_TOOL_PROXIMITY_IN;
static void tablet_tool_proximity_notify(struct wl_listener *listener, void *data) {
struct tablet_tool_state *tstate = wl_container_of(listener, tstate, proximity);
struct wlr_event_tablet_tool_proximity *event = data;
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,
uint32_t button, enum wlr_button_state state) {
struct sample_state *sample = tstate->compositor->data;
if (state == WLR_BUTTON_RELEASED) {
static void tablet_tool_button_notify(struct wl_listener *listener, void *data) {
struct tablet_tool_state *tstate = wl_container_of(listener, tstate, button);
struct wlr_event_tablet_tool_button *event = data;
struct sample_state *sample = tstate->sample;
if (event->state == WLR_BUTTON_RELEASED) {
sample->button = false;
} else {
sample->button = true;
for (size_t i = 0; i < 3; ++i) {
if (button % 3 == i) {
if (event->button % 3 == i) {
sample->tool_color[i] = 0;
} else {
sample->tool_color[i] = 1;
@ -135,15 +183,16 @@ static void handle_tool_button(struct tablet_tool_state *tstate,
}
}
static void handle_pad_button(struct tablet_pad_state *pstate,
uint32_t button, enum wlr_button_state state) {
struct sample_state *sample = pstate->compositor->data;
static void tablet_pad_button_notify(struct wl_listener *listener, void *data) {
struct tablet_pad_state *pstate = wl_container_of(listener, pstate, button);
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 };
if (state == WLR_BUTTON_RELEASED) {
if (event->state == WLR_BUTTON_RELEASED) {
memcpy(sample->pad_color, default_color, sizeof(default_color));
} else {
for (size_t i = 0; i < 3; ++i) {
if (button % 3 == i) {
if (event->button % 3 == i) {
sample->pad_color[i] = 0;
} else {
sample->pad_color[i] = 1;
@ -152,56 +201,182 @@ static void handle_pad_button(struct tablet_pad_state *pstate,
}
}
static void handle_pad_ring(struct tablet_pad_state *pstate,
uint32_t ring, double position) {
struct sample_state *sample = pstate->compositor->data;
if (position != -1) {
sample->ring = -(position * (M_PI / 180.0));
static void tablet_pad_ring_notify(struct wl_listener *listener, void *data) {
struct tablet_pad_state *pstate = wl_container_of(listener, pstate, ring);
struct wlr_event_tablet_pad_ring *event = data;
struct sample_state *sample = pstate->sample;
if (event->position != -1) {
sample->ring = -(event->position * (M_PI / 180.0));
}
}
static void handle_input_add(struct compositor_state *cstate,
struct wlr_input_device *inputdev) {
struct sample_state *sample = cstate->data;
if (inputdev->type == WLR_INPUT_DEVICE_TABLET_TOOL) {
sample->width_mm = inputdev->width_mm == 0 ?
20 : inputdev->width_mm;
sample->height_mm = inputdev->height_mm == 0 ?
10 : inputdev->height_mm;
static void tablet_tool_destroy_notify(struct wl_listener *listener, void *data) {
struct tablet_tool_state *tstate = wl_container_of(listener, tstate, destroy);
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->button.link);
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_length(&output->modes) > 0) {
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);
struct sample_keyboard *keyboard;
struct xkb_rule_names rules;
struct xkb_context *context;
struct tablet_tool_state *tstate;
struct tablet_pad_state *pstate;
switch (device->type) {
case WLR_INPUT_DEVICE_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;
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");
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:
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;
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[]) {
wlr_log_init(L_DEBUG, NULL);
struct wl_display *display = wl_display_create();
struct sample_state state = {
.display = display,
.tool_color = { 1, 1, 1, 1 },
.pad_color = { 0.5, 0.5, 0.5, 1.0 }
};
struct compositor_state compositor = {
.data = &state,
.output_frame_cb = handle_output_frame,
.tool_axis_cb = handle_tool_axis,
.tool_proximity_cb = handle_tool_proximity,
.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);
wl_list_init(&state.tablet_pads);
wl_list_init(&state.tablet_tools);
struct wlr_backend *wlr = wlr_backend_autocreate(display);
if (!wlr) {
exit(1);
}
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) {
wlr_log(L_ERROR, "Could not start compositor, OOM");
exit(EXIT_FAILURE);
}
if (!wlr_backend_start(compositor.backend)) {
if (!wlr_backend_start(wlr)) {
wlr_log(L_ERROR, "Failed to start backend");
wlr_backend_destroy(compositor.backend);
wlr_backend_destroy(wlr);
exit(1);
}
wl_display_run(compositor.display);
wl_display_run(display);
wlr_renderer_destroy(state.renderer);
compositor_fini(&compositor);
wl_display_destroy(display);
}