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backend/x11: Check for xinput extension

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This commit is contained in:
Scott Anderson 2018-11-11 12:30:37 +13:00
parent 9c1b87f210
commit 88b2d6fe25
4 changed files with 32 additions and 1 deletions
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1
README.md
View file

@ -62,6 +62,7 @@ If you choose to enable X11 support:
* xcb
* xcb-composite
* xcb-xfixes
* xcb-xinput
* xcb-image
* xcb-render
* x11-xcb

27
backend/x11/backend.c
View file

@ -12,6 +12,7 @@
#include <X11/Xlib-xcb.h>
#include <wayland-server.h>
#include <xcb/xcb.h>
#include <xcb/xinput.h>
#if WLR_HAS_XCB_XKB
#include <xcb/xkb.h>
#endif
@ -74,6 +75,12 @@ static void handle_x11_event(struct wlr_x11_backend *x11,
}
break;
}
case XCB_GE_GENERIC: {
xcb_ge_generic_event_t *ev = (xcb_ge_generic_event_t *)event;
if (ev->extension == x11->xinput_opcode) {
handle_x11_xinput_event(x11, ev);
}
}
}
}
@ -259,6 +266,26 @@ struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
}
}
const xcb_query_extension_reply_t *ext =
xcb_get_extension_data(x11->xcb, &xcb_input_id);
if (!ext || !ext->present) {
wlr_log(WLR_ERROR, "X11 does not support Xinput extension");
goto error_display;
}
x11->xinput_opcode = ext->major_opcode;
xcb_input_xi_query_version_cookie_t xi_cookie =
xcb_input_xi_query_version(x11->xcb, 2, 0);
xcb_input_xi_query_version_reply_t *xi_reply =
xcb_input_xi_query_version_reply(x11->xcb, xi_cookie, NULL);
if (!xi_reply || xi_reply->major_version < 2) {
wlr_log(WLR_ERROR, "X11 does not support required Xinput version");
free(xi_reply);
goto error_display;
}
free(xi_reply);
int fd = xcb_get_file_descriptor(x11->xcb);
struct wl_event_loop *ev = wl_display_get_event_loop(display);
uint32_t events = WL_EVENT_READABLE | WL_EVENT_ERROR | WL_EVENT_HANGUP;

3
backend/x11/meson.build
View file

@ -1,7 +1,8 @@
x11_libs = []
x11_required = [
'xcb',
'x11-xcb',
'xcb',
'xcb-xinput',
]
x11_optional = [
'xcb-xkb',

2
include/backend/x11.h
View file

@ -67,6 +67,8 @@ struct wlr_x11_backend {
// A blank cursor
xcb_cursor_t cursor;
uint8_t xinput_opcode;
#if WLR_HAS_XCB_XKB
bool xkb_supported;
uint8_t xkb_base_event;