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Add mode support to libinput backend

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And extend tablet example with tilt and ring support
This commit is contained in:
Drew DeVault 2018-03-07 20:57:55 -05:00
parent 36dcad13d0
commit bfc0e95d2c
6 changed files with 62 additions and 18 deletions
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59
examples/tablet.c
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@ -14,6 +14,7 @@
#include <wlr/render.h>
#include <wlr/backend.h>
#include <wlr/backend/session.h>
#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_tablet_tool.h>
#include <wlr/types/wlr_tablet_pad.h>
@ -28,7 +29,9 @@ struct sample_state {
double distance;
double pressure;
double x_mm, y_mm;
double x_tilt, y_tilt;
double width_mm, height_mm;
double ring;
struct wl_list link;
float tool_color[4];
float pad_color[4];
@ -46,7 +49,7 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
wlr_renderer_begin(sample->renderer, wlr_output);
wlr_renderer_clear(sample->renderer, &(float[]){0.25f, 0.25f, 0.25f, 1});
float matrix[16], view[16];
float matrix[16];
float distance = 0.8f * (1 - sample->distance);
float tool_color[4] = { distance, distance, distance, 1 };
for (size_t i = 0; sample->button && i < 4; ++i) {
@ -58,22 +61,31 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
float pad_height = sample->height_mm * scale;
float left = width / 2.0f - pad_width / 2.0f;
float top = height / 2.0f - pad_height / 2.0f;
wlr_matrix_translate(&matrix, left, top, 0);
wlr_matrix_scale(&view, pad_width, pad_height, 1);
wlr_matrix_mul(&matrix, &view, &view);
wlr_matrix_mul(&wlr_output->transform_matrix, &view, &matrix);
struct wlr_box box = {
.x = left, .y = top,
.width = pad_width, .height = pad_height,
};
wlr_matrix_project_box(&matrix, &box, 0, 0,
&wlr_output->transform_matrix);
wlr_render_colored_quad(sample->renderer, &sample->pad_color, &matrix);
if (sample->proximity) {
wlr_matrix_translate(&matrix,
sample->x_mm * scale - 8 * (sample->pressure + 1) + left,
sample->y_mm * scale - 8 * (sample->pressure + 1) + top, 0);
wlr_matrix_scale(&view,
16 * (sample->pressure + 1),
16 * (sample->pressure + 1), 1);
wlr_matrix_mul(&matrix, &view, &view);
wlr_matrix_mul(&wlr_output->transform_matrix, &view, &matrix);
wlr_render_colored_ellipse(sample->renderer, &tool_color, &matrix);
struct wlr_box box = {
.x = sample->x_mm * scale - 8 * (sample->pressure + 1) + left,
.y = sample->y_mm * scale - 8 * (sample->pressure + 1) + top,
.width = 16 * (sample->pressure + 1),
.height = 16 * (sample->pressure + 1),
};
wlr_matrix_project_box(&matrix, &box, 0, sample->ring,
&wlr_output->transform_matrix);
wlr_render_colored_quad(sample->renderer, &tool_color, &matrix);
box.x += sample->x_tilt;
box.y += sample->y_tilt;
box.width /= 2;
box.height /= 2;
wlr_matrix_project_box(&matrix, &box, 0, 0,
&wlr_output->transform_matrix);
wlr_render_colored_quad(sample->renderer, &tool_color, &matrix);
}
wlr_renderer_end(sample->renderer);
@ -97,6 +109,12 @@ static void handle_tool_axis(struct tablet_tool_state *tstate,
if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_PRESSURE)) {
sample->pressure = event->pressure;
}
if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_TILT_X)) {
sample->x_tilt = event->tilt_x;
}
if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_TILT_Y)) {
sample->y_tilt = event->tilt_y;
}
}
static void handle_tool_proximity(struct tablet_tool_state *tstate,
@ -125,7 +143,7 @@ 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;
float default_color[4] = { 0.75, 0.75, 0.75, 1.0 };
float default_color[4] = { 0.5, 0.5, 0.5, 1.0 };
if (state == WLR_BUTTON_RELEASED) {
memcpy(sample->pad_color, default_color, sizeof(default_color));
} else {
@ -139,11 +157,19 @@ 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));
}
}
int main(int argc, char *argv[]) {
wlr_log_init(L_DEBUG, NULL);
struct sample_state state = {
.tool_color = { 1, 1, 1, 1 },
.pad_color = { 0.75, 0.75, 0.75, 1.0 }
.pad_color = { 0.5, 0.5, 0.5, 1.0 }
};
struct compositor_state compositor = { 0,
.data = &state,
@ -152,6 +178,7 @@ int main(int argc, char *argv[]) {
.tool_proximity_cb = handle_tool_proximity,
.tool_button_cb = handle_tool_button,
.pad_button_cb = handle_pad_button,
.pad_ring_cb = handle_pad_ring,
};
compositor_init(&compositor);