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Implement tablet pads

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This commit is contained in:
Drew DeVault 2017-06-19 14:49:07 -04:00
parent e9609e9adf
commit ecb04afcad
11 changed files with 268 additions and 13 deletions
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1
backend/CMakeLists.txt
View file

@ -20,6 +20,7 @@ add_library(wlr-backend
libinput/pointer.c
libinput/touch.c
libinput/tablet_tool.c
libinput/tablet_pad.c
multi/backend.c
backend.c

14
backend/libinput/events.c
View file

@ -91,7 +91,10 @@ static void handle_device_added(struct wlr_backend_state *state,
wl_signal_emit(&state->backend->events.input_add, wlr_device);
}
if (libinput_device_has_capability(device, LIBINPUT_DEVICE_CAP_TABLET_PAD)) {
// TODO
struct wlr_input_device *wlr_device = allocate_device(state,
device, devices, WLR_INPUT_DEVICE_TABLET_PAD);
wlr_device->tablet_pad = wlr_libinput_tablet_pad_create(device);
wl_signal_emit(&state->backend->events.input_add, wlr_device);
}
if (libinput_device_has_capability(device, LIBINPUT_DEVICE_CAP_GESTURE)) {
// TODO
@ -169,6 +172,15 @@ void wlr_libinput_event(struct wlr_backend_state *state,
case LIBINPUT_EVENT_TABLET_TOOL_BUTTON:
handle_tablet_tool_button(event, device);
break;
case LIBINPUT_EVENT_TABLET_PAD_BUTTON:
handle_tablet_pad_button(event, device);
break;
case LIBINPUT_EVENT_TABLET_PAD_RING:
handle_tablet_pad_ring(event, device);
break;
case LIBINPUT_EVENT_TABLET_PAD_STRIP:
handle_tablet_pad_strip(event, device);
break;
default:
wlr_log(L_DEBUG, "Unknown libinput event %d", event_type);
break;

95
backend/libinput/tablet_pad.c Normal file
View file

@ -0,0 +1,95 @@
#include <stdlib.h>
#include <assert.h>
#include <libinput.h>
#include <wlr/session.h>
#include <wlr/types.h>
#include <wlr/common/list.h>
#include "backend/libinput.h"
#include "common/log.h"
#include "types.h"
struct wlr_tablet_pad *wlr_libinput_tablet_pad_create(
struct libinput_device *device) {
assert(device);
return wlr_tablet_pad_create(NULL, NULL);
}
void handle_tablet_pad_button(struct libinput_event *event,
struct libinput_device *device) {
struct wlr_input_device *dev =
get_appropriate_device(WLR_INPUT_DEVICE_TABLET_PAD, device);
if (!dev) {
wlr_log(L_DEBUG, "Got a tablet pad event for a device with no tablet pad?");
return;
}
struct libinput_event_tablet_pad *pevent =
libinput_event_get_tablet_pad_event(event);
struct wlr_tablet_pad_button *wlr_event =
calloc(1, sizeof(struct wlr_tablet_pad_button));
wlr_event->time_sec = libinput_event_tablet_pad_get_time(pevent);
wlr_event->time_usec = libinput_event_tablet_pad_get_time_usec(pevent);
wlr_event->button = libinput_event_tablet_pad_get_button_number(pevent);
switch (libinput_event_tablet_pad_get_button_state(pevent)) {
case LIBINPUT_BUTTON_STATE_PRESSED:
wlr_event->state = WLR_BUTTON_PRESSED;
break;
case LIBINPUT_BUTTON_STATE_RELEASED:
wlr_event->state = WLR_BUTTON_RELEASED;
break;
}
wl_signal_emit(&dev->tablet_pad->events.button, wlr_event);
}
void handle_tablet_pad_ring(struct libinput_event *event,
struct libinput_device *device) {
struct wlr_input_device *dev =
get_appropriate_device(WLR_INPUT_DEVICE_TABLET_PAD, device);
if (!dev) {
wlr_log(L_DEBUG, "Got a tablet pad event for a device with no tablet pad?");
return;
}
struct libinput_event_tablet_pad *pevent =
libinput_event_get_tablet_pad_event(event);
struct wlr_tablet_pad_ring *wlr_event =
calloc(1, sizeof(struct wlr_tablet_pad_ring));
wlr_event->time_sec = libinput_event_tablet_pad_get_time(pevent);
wlr_event->time_usec = libinput_event_tablet_pad_get_time_usec(pevent);
wlr_event->ring = libinput_event_tablet_pad_get_ring_number(pevent);
wlr_event->position = libinput_event_tablet_pad_get_ring_position(pevent);
switch (libinput_event_tablet_pad_get_ring_source(pevent)) {
case LIBINPUT_TABLET_PAD_RING_SOURCE_UNKNOWN:
wlr_event->source = WLR_TABLET_PAD_RING_SOURCE_UNKNOWN;
break;
case LIBINPUT_TABLET_PAD_RING_SOURCE_FINGER:
wlr_event->source = WLR_TABLET_PAD_RING_SOURCE_FINGER;
break;
}
wl_signal_emit(&dev->tablet_pad->events.ring, wlr_event);
}
void handle_tablet_pad_strip(struct libinput_event *event,
struct libinput_device *device) {
struct wlr_input_device *dev =
get_appropriate_device(WLR_INPUT_DEVICE_TABLET_PAD, device);
if (!dev) {
wlr_log(L_DEBUG, "Got a tablet pad event for a device with no tablet pad?");
return;
}
struct libinput_event_tablet_pad *pevent =
libinput_event_get_tablet_pad_event(event);
struct wlr_tablet_pad_strip *wlr_event =
calloc(1, sizeof(struct wlr_tablet_pad_strip));
wlr_event->time_sec = libinput_event_tablet_pad_get_time(pevent);
wlr_event->time_usec = libinput_event_tablet_pad_get_time_usec(pevent);
wlr_event->strip = libinput_event_tablet_pad_get_strip_number(pevent);
wlr_event->position = libinput_event_tablet_pad_get_strip_position(pevent);
switch (libinput_event_tablet_pad_get_strip_source(pevent)) {
case LIBINPUT_TABLET_PAD_STRIP_SOURCE_UNKNOWN:
wlr_event->source = WLR_TABLET_PAD_STRIP_SOURCE_UNKNOWN;
break;
case LIBINPUT_TABLET_PAD_STRIP_SOURCE_FINGER:
wlr_event->source = WLR_TABLET_PAD_STRIP_SOURCE_FINGER;
break;
}
wl_signal_emit(&dev->tablet_pad->events.strip, wlr_event);
}

24
example/shared.c
View file

@ -211,6 +211,25 @@ static void tablet_tool_add(struct wlr_input_device *device,
wl_list_insert(&state->tablet_tools, &tstate->link);
}
static void tablet_pad_button_notify(struct wl_listener *listener, void *data) {
struct wlr_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_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;
wl_list_init(&pstate->button.link);
pstate->button.notify = tablet_pad_button_notify;
wl_signal_add(&device->tablet_pad->events.button, &pstate->button);
wl_list_insert(&state->tablet_pads, &pstate->link);
}
static void input_add_notify(struct wl_listener *listener, void *data) {
struct wlr_input_device *device = data;
struct compositor_state *state = wl_container_of(listener, state, input_add);
@ -226,6 +245,10 @@ static void input_add_notify(struct wl_listener *listener, void *data) {
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;
}
@ -391,6 +414,7 @@ void compositor_init(struct compositor_state *state) {
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->input_add.link);
state->input_add.notify = input_add_notify;
wl_list_init(&state->input_remove.link);

11
example/shared.h
View file

@ -61,6 +61,14 @@ struct tablet_tool_state {
void *data;
};
struct tablet_pad_state {
struct compositor_state *compositor;
struct wlr_input_device *device;
struct wl_listener button;
struct wl_list link;
void *data;
};
struct compositor_state {
void (*output_add_cb)(struct output_state *s);
void (*keyboard_add_cb)(struct keyboard_state *s);
@ -91,6 +99,8 @@ struct compositor_state {
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);
struct wl_display *display;
struct wl_event_loop *event_loop;
@ -101,6 +111,7 @@ struct compositor_state {
struct wl_list pointers;
struct wl_list touch;
struct wl_list tablet_tools;
struct wl_list tablet_pads;
struct wl_listener input_add;
struct wl_listener input_remove;

41
example/tablet.c
View file

@ -21,13 +21,14 @@
struct sample_state {
struct wlr_renderer *renderer;
bool proximity, tap;
bool proximity, tap, button;
double distance;
double pressure;
double x_mm, y_mm;
double width_mm, height_mm;
struct wl_list link;
float tool_color[4];
float pad_color[4];
};
static void handle_output_frame(struct output_state *output, struct timespec *ts) {
@ -41,11 +42,10 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
wlr_renderer_begin(sample->renderer, wlr_output);
float matrix[16], view[16];
float pad_color[4] = { 0.75, 0.75, 0.75, 1.0 };
float distance = 0.8f * (1 - sample->distance);
float tool_color[4] = { distance, distance, distance, 1 };
for (size_t i = 0; i < 4; ++i) {
tool_color[i] *= sample->tool_color[i];
for (size_t i = 0; sample->button && i < 4; ++i) {
tool_color[i] = sample->tool_color[i];
}
float scale = 4;
@ -57,7 +57,7 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
wlr_matrix_scale(&view, pad_width, pad_height, 1);
wlr_matrix_mul(&matrix, &view, &view);
wlr_matrix_mul(&wlr_output->transform_matrix, &view, &matrix);
wlr_render_colored_quad(sample->renderer, &pad_color, &matrix);
wlr_render_colored_quad(sample->renderer, &sample->pad_color, &matrix);
if (sample->proximity) {
wlr_matrix_translate(&matrix,
@ -110,12 +110,31 @@ 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) {
float default_color[4] = { 1, 1, 1, 1 };
memcpy(sample->tool_color, default_color, 4);
sample->button = false;
} else {
sample->button = true;
for (size_t i = 0; i < 3; ++i) {
if (button % 3 == i) {
sample->tool_color[i] = 0;
} else {
sample->tool_color[i] = 1;
}
}
}
}
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;
float default_color[4] = { 0.75, 0.75, 0.75, 1.0 };
if (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) {
sample->tool_color[button % 3] = 0;
if (button % 3 == i) {
sample->pad_color[i] = 0;
} else {
sample->pad_color[i] = 1;
}
}
}
@ -123,7 +142,8 @@ static void handle_tool_button(struct tablet_tool_state *tstate,
int main(int argc, char *argv[]) {
struct sample_state state = {
.tool_color = { 1, 1, 1, 1 }
.tool_color = { 1, 1, 1, 1 },
.pad_color = { 0.75, 0.75, 0.75, 1.0 }
};
struct compositor_state compositor;
@ -133,6 +153,7 @@ int main(int argc, char *argv[]) {
compositor.tool_axis_cb = handle_tool_axis;
compositor.tool_proximity_cb = handle_tool_proximity;
compositor.tool_button_cb = handle_tool_button;
compositor.pad_button_cb = handle_pad_button;
state.renderer = wlr_gles3_renderer_init();

9
include/backend/libinput.h
View file

@ -68,4 +68,13 @@ void handle_tablet_tool_tip(struct libinput_event *event,
void handle_tablet_tool_button(struct libinput_event *event,
struct libinput_device *device);
struct wlr_tablet_pad *wlr_libinput_tablet_pad_create(
struct libinput_device *device);
void handle_tablet_pad_button(struct libinput_event *event,
struct libinput_device *device);
void handle_tablet_pad_ring(struct libinput_event *event,
struct libinput_device *device);
void handle_tablet_pad_strip(struct libinput_event *event,
struct libinput_device *device);
#endif

8
include/types.h
View file

@ -53,6 +53,14 @@ struct wlr_tablet_tool *wlr_tablet_tool_create(struct wlr_tablet_tool_impl *impl
struct wlr_tablet_tool_state *state);
void wlr_tablet_tool_destroy(struct wlr_tablet_tool *tool);
struct wlr_tablet_pad_impl {
void (*destroy)(struct wlr_tablet_pad_state *pad);
};
struct wlr_tablet_pad *wlr_tablet_pad_create(struct wlr_tablet_pad_impl *impl,
struct wlr_tablet_pad_state *state);
void wlr_tablet_pad_destroy(struct wlr_tablet_pad *pad);
struct wlr_input_device_impl {
void (*destroy)(struct wlr_input_device_state *state);
};

52
include/wlr/types.h
View file

@ -254,8 +254,55 @@ struct wlr_tablet_tool_button {
enum wlr_button_state state;
};
// TODO: tablet pad
// TODO: switch
// NOTE: the wlr tablet pad implementation does not currently support tablets
// with more than one mode. I don't own any such hardware so I cannot test it
// and it is too complicated to make a meaningful implementation of blindly.
struct wlr_tablet_pad_impl;
struct wlr_tablet_pad_state;
struct wlr_tablet_pad {
struct wlr_tablet_pad_impl *impl;
struct wlr_tablet_pad_state *state;
struct {
struct wl_signal button;
struct wl_signal ring;
struct wl_signal strip;
} events;
};
struct wlr_tablet_pad_button {
uint32_t time_sec;
uint64_t time_usec;
uint32_t button;
enum wlr_button_state state;
};
enum wlr_tablet_pad_ring_source {
WLR_TABLET_PAD_RING_SOURCE_UNKNOWN,
WLR_TABLET_PAD_RING_SOURCE_FINGER,
};
struct wlr_tablet_pad_ring {
uint32_t time_sec;
uint64_t time_usec;
enum wlr_tablet_pad_ring_source source;
uint32_t ring;
double position;
};
enum wlr_tablet_pad_strip_source {
WLR_TABLET_PAD_STRIP_SOURCE_UNKNOWN,
WLR_TABLET_PAD_STRIP_SOURCE_FINGER,
};
struct wlr_tablet_pad_strip {
uint32_t time_sec;
uint64_t time_usec;
enum wlr_tablet_pad_strip_source source;
uint32_t strip;
double position;
};
enum wlr_input_device_type {
WLR_INPUT_DEVICE_KEYBOARD,
@ -284,6 +331,7 @@ struct wlr_input_device {
struct wlr_pointer *pointer;
struct wlr_touch *touch;
struct wlr_tablet_tool *tablet_tool;
struct wlr_tablet_pad *tablet_pad;
};
};

1
types/CMakeLists.txt
View file

@ -10,6 +10,7 @@ add_library(wlr-types
wlr_pointer.c
wlr_touch.c
wlr_tablet_tool.c
wlr_tablet_pad.c
)
target_link_libraries(wlr-types

25
types/wlr_tablet_pad.c Normal file
View file

@ -0,0 +1,25 @@
#include <stdlib.h>
#include <string.h>
#include <wayland-server.h>
#include <wlr/types.h>
#include <wlr/common/list.h>
#include "types.h"
struct wlr_tablet_pad *wlr_tablet_pad_create(struct wlr_tablet_pad_impl *impl,
struct wlr_tablet_pad_state *state) {
struct wlr_tablet_pad *pad = calloc(1, sizeof(struct wlr_tablet_pad));
pad->impl = impl;
pad->state = state;
wl_signal_init(&pad->events.button);
wl_signal_init(&pad->events.ring);
wl_signal_init(&pad->events.strip);
return pad;
}
void wlr_tablet_pad_destroy(struct wlr_tablet_pad *pad) {
if (!pad) return;
if (pad->impl) {
pad->impl->destroy(pad->state);
}
free(pad);
}