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Merge pull request #810 from emersion/x11-backend-configure-fix-cursor

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backend/x11: fix cursor position when receiving configure event
This commit is contained in:
Drew DeVault 2018-04-03 15:44:07 -04:00 committed by GitHub
commit 1e39c37b3c
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 50 additions and 42 deletions
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70
backend/x11/input_device.c
View file

@ -1,3 +1,4 @@
#include <stdlib.h>
#include <wlr/config.h>
#include <wlr/interfaces/wlr_input_device.h>
#include <wlr/interfaces/wlr_keyboard.h>
@ -27,6 +28,34 @@ static uint32_t xcb_button_to_wl(uint32_t button) {
}
}
static void x11_handle_pointer_position(struct wlr_x11_output *output,
int16_t x, int16_t y, xcb_timestamp_t time) {
struct wlr_x11_backend *x11 = output->x11;
struct wlr_output *wlr_output = &output->wlr_output;
struct wlr_box box = { .x = x, .y = y };
wlr_box_transform(&box, wlr_output->transform, wlr_output->width,
wlr_output->height, &box);
box.x /= wlr_output->scale;
box.y /= wlr_output->scale;
struct wlr_box layout_box;
x11_output_layout_get_box(x11, &layout_box);
double ox = wlr_output->lx / (double)layout_box.width;
double oy = wlr_output->ly / (double)layout_box.height;
struct wlr_event_pointer_motion_absolute wlr_event = {
.device = &x11->pointer_dev,
.time_msec = time,
.x = box.x / (double)layout_box.width + ox,
.y = box.y / (double)layout_box.height + oy,
};
wlr_signal_emit_safe(&x11->pointer.events.motion_absolute, &wlr_event);
x11->time = time;
}
bool x11_handle_input_event(struct wlr_x11_backend *x11,
xcb_generic_event_t *event) {
switch (event->response_type & XCB_EVENT_RESPONSE_TYPE_MASK) {
@ -91,30 +120,8 @@ bool x11_handle_input_event(struct wlr_x11_backend *x11,
if (output == NULL) {
return false;
}
struct wlr_output *wlr_output = &output->wlr_output;
struct wlr_box box = { .x = ev->event_x, .y = ev->event_y };
wlr_box_transform(&box, wlr_output->transform, wlr_output->width,
wlr_output->height, &box);
box.x /= wlr_output->scale;
box.y /= wlr_output->scale;
struct wlr_box layout_box;
x11_output_layout_get_box(x11, &layout_box);
double ox = wlr_output->lx / (double)layout_box.width;
double oy = wlr_output->ly / (double)layout_box.height;
struct wlr_event_pointer_motion_absolute wlr_event = {
.device = &x11->pointer_dev,
.time_msec = ev->time,
.x = box.x / (double)layout_box.width + ox,
.y = box.y / (double)layout_box.height + oy,
};
wlr_signal_emit_safe(&x11->pointer.events.motion_absolute, &wlr_event);
x11->time = ev->time;
x11_handle_pointer_position(output, ev->event_x, ev->event_y, ev->time);
return true;
}
default:
@ -135,6 +142,23 @@ bool x11_handle_input_event(struct wlr_x11_backend *x11,
const struct wlr_input_device_impl input_device_impl = { 0 };
void x11_update_pointer_position(struct wlr_x11_output *output,
xcb_timestamp_t time) {
struct wlr_x11_backend *x11 = output->x11;
xcb_query_pointer_cookie_t cookie =
xcb_query_pointer(x11->xcb_conn, output->win);
xcb_query_pointer_reply_t *reply =
xcb_query_pointer_reply(x11->xcb_conn, cookie, NULL);
if (!reply) {
return;
}
x11_handle_pointer_position(output, reply->win_x, reply->win_y, time);
free(reply);
}
bool wlr_input_device_is_x11(struct wlr_input_device *wlr_dev) {
return wlr_dev->impl == &input_device_impl;
}

20
backend/x11/output.c
View file

@ -157,29 +157,11 @@ struct wlr_output *wlr_x11_output_create(struct wlr_backend *backend) {
void x11_output_handle_configure_notify(struct wlr_x11_output *output,
xcb_configure_notify_event_t *ev) {
struct wlr_x11_backend *x11 = output->x11;
wlr_output_update_custom_mode(&output->wlr_output, ev->width,
ev->height, output->wlr_output.refresh);
// Move the pointer to its new location
xcb_query_pointer_cookie_t cookie =
xcb_query_pointer(x11->xcb_conn, output->win);
xcb_query_pointer_reply_t *pointer =
xcb_query_pointer_reply(x11->xcb_conn, cookie, NULL);
if (!pointer) {
return;
}
struct wlr_event_pointer_motion_absolute abs = {
.device = &x11->pointer_dev,
.time_msec = x11->time,
.x = (double)pointer->root_x / output->wlr_output.width,
.y = (double)pointer->root_y / output->wlr_output.height,
};
wlr_signal_emit_safe(&x11->pointer.events.motion_absolute, &abs);
free(pointer);
x11_update_pointer_position(output, output->x11->time);
}
bool wlr_output_is_x11(struct wlr_output *wlr_output) {

2
include/backend/x11.h
View file

@ -79,6 +79,8 @@ const struct wlr_input_device_impl input_device_impl;
bool x11_handle_input_event(struct wlr_x11_backend *x11,
xcb_generic_event_t *event);
void x11_update_pointer_position(struct wlr_x11_output *output,
xcb_timestamp_t time);
void x11_output_handle_configure_notify(struct wlr_x11_output *output,
xcb_configure_notify_event_t *event);