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authorScott Anderson <ascent12@hotmail.com>2017-09-22 16:00:27 +1200
committerScott Anderson <ascent12@hotmail.com>2017-09-29 16:12:13 +1300
commit7ad2a57feb4c7e4b191edfbaa68ff3a2fd703f9f (patch)
tree7a380f1122c567b6b913b232d0d07f49c70183a6
parenta598e6d026548ce7ab580504e05a71a5296b83f0 (diff)
Open X11 Window
-rw-r--r--backend/backend.c2
-rw-r--r--backend/x11/backend.c101
-rw-r--r--include/backend/x11.h12
-rw-r--r--include/wlr/backend/x11.h6
-rw-r--r--meson.build2
5 files changed, 114 insertions, 9 deletions
diff --git a/backend/backend.c b/backend/backend.c
index 21f342ad..ec309da4 100644
--- a/backend/backend.c
+++ b/backend/backend.c
@@ -80,7 +80,7 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display) {
const char *x11_display = getenv("DISPLAY");
if (x11_display) {
- return wlr_x11_backend_create(x11_display);
+ return wlr_x11_backend_create(display, x11_display);
}
// Attempt DRM+libinput
diff --git a/backend/x11/backend.c b/backend/x11/backend.c
index be022a7a..d02bd6eb 100644
--- a/backend/x11/backend.c
+++ b/backend/x11/backend.c
@@ -1,30 +1,119 @@
#include <stdbool.h>
+#include <stdlib.h>
+#include <xcb/xcb.h>
+#include <X11/Xlib-xcb.h>
+#include <wayland-server.h>
#include <wlr/backend/interface.h>
#include <wlr/backend/x11.h>
#include <wlr/egl.h>
+#include <wlr/util/log.h>
#include "backend/x11.h"
-struct wlr_backend *wlr_x11_backend_create(const char *display) {
+static struct wlr_backend_impl backend_impl;
+
+int x11_event(int fd, uint32_t mask, void *data) {
+ struct wlr_x11_backend *x11 = data;
+
+ xcb_generic_event_t *event = xcb_wait_for_event(x11->xcb_conn);
+ if (!event) {
+ return 0;
+ }
+
+ switch (event->response_type) {
+ case XCB_EXPOSE:
+ break;
+ case XCB_KEY_PRESS:
+ break;
+ default:
+ wlr_log(L_INFO, "Unknown event");
+ break;
+ }
+
+ free(event);
+ return 0;
+}
+
+struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
+ const char *x11_display) {
+ struct wlr_x11_backend *x11 = calloc(1, sizeof(*x11));
+ if (!x11) {
+ return NULL;
+ }
+
+ wlr_backend_init(&x11->backend, &backend_impl);
+
+ x11->xlib_conn = XOpenDisplay(x11_display);
+ if (!x11->xlib_conn) {
+ wlr_log(L_ERROR, "Failed to open X connection");
+ return NULL;
+ }
+
+ x11->xcb_conn = XGetXCBConnection(x11->xlib_conn);
+ if (!x11->xcb_conn || xcb_connection_has_error(x11->xcb_conn)) {
+ wlr_log(L_ERROR, "Failed to open xcb connection");
+ goto error;
+ }
+
+ int fd = xcb_get_file_descriptor(x11->xcb_conn);
+ struct wl_event_loop *ev = wl_display_get_event_loop(display);
+ x11->event_source = wl_event_loop_add_fd(ev, fd, WL_EVENT_READABLE, x11_event, x11);
+ if (!x11->event_source) {
+ wlr_log(L_ERROR, "Could not create event source");
+ goto error;
+ }
+
+ return &x11->backend;
+
+error:
+ xcb_disconnect(x11->xcb_conn);
+ XCloseDisplay(x11->xlib_conn);
+ free(x11);
return NULL;
}
static bool wlr_x11_backend_start(struct wlr_backend *backend) {
- return false;
+ struct wlr_x11_backend *x11 = (struct wlr_x11_backend *)backend;
+
+ xcb_screen_t *screen = xcb_setup_roots_iterator(xcb_get_setup(x11->xcb_conn)).data;
+ uint32_t mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
+ uint32_t values[2] = {
+ screen->white_pixel,
+ XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_KEY_PRESS
+ };
+
+ x11->win = xcb_generate_id(x11->xcb_conn);
+
+ xcb_create_window(x11->xcb_conn, XCB_COPY_FROM_PARENT, x11->win, screen->root,
+ 0, 0, 1024, 768, 1, XCB_WINDOW_CLASS_INPUT_OUTPUT,
+ screen->root_visual, mask, values);
+
+ xcb_map_window(x11->xcb_conn, x11->win);
+ xcb_flush(x11->xcb_conn);
+
+ return true;
}
static void wlr_x11_backend_destroy(struct wlr_backend *backend) {
+ if (!backend) {
+ return;
+ }
+
+ struct wlr_x11_backend *x11 = (struct wlr_x11_backend *)backend;
+
+ xcb_disconnect(x11->xcb_conn);
+ free(x11);
}
struct wlr_egl *wlr_x11_backend_get_egl(struct wlr_backend *backend) {
return NULL;
}
+bool wlr_backend_is_x11(struct wlr_backend *backend) {
+ return backend->impl == &backend_impl;
+}
+
static struct wlr_backend_impl backend_impl = {
.start = wlr_x11_backend_start,
.destroy = wlr_x11_backend_destroy,
.get_egl = wlr_x11_backend_get_egl,
};
-
-bool wlr_backend_is_x11(struct wlr_backend *backend) {
- return backend->impl == &backend_impl;
-}
diff --git a/include/backend/x11.h b/include/backend/x11.h
index 2f319672..6ef86c8a 100644
--- a/include/backend/x11.h
+++ b/include/backend/x11.h
@@ -1,8 +1,20 @@
#ifndef WLR_X11_H
#define WLR_X11_H
+#include <xcb/xcb.h>
+#include <X11/Xlib-xcb.h>
+#include <wayland-server.h>
+#include <wlr/egl.h>
+
struct wlr_x11_backend {
struct wlr_backend backend;
+
+ Display *xlib_conn;
+ xcb_connection_t *xcb_conn;
+ xcb_window_t win;
+
+ struct wlr_egl egl;
+ struct wl_event_source *event_source;
};
#endif
diff --git a/include/wlr/backend/x11.h b/include/wlr/backend/x11.h
index 28d027c5..3901649b 100644
--- a/include/wlr/backend/x11.h
+++ b/include/wlr/backend/x11.h
@@ -1,10 +1,12 @@
#ifndef WLR_BACKEND_X11_H
#define WLR_BACKEND_X11_H
-#include <wlr/backend.h>
#include <stdbool.h>
+#include <wayland-server.h>
+#include <wlr/backend.h>
-struct wlr_backend *wlr_x11_backend_create(const char *display);
+struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
+ const char *x11_display);
bool wlr_backend_is_x11(struct wlr_backend *backend);
diff --git a/meson.build b/meson.build
index c0fb50e1..520eceb9 100644
--- a/meson.build
+++ b/meson.build
@@ -45,6 +45,7 @@ udev = dependency('libudev')
pixman = dependency('pixman-1')
xcb = dependency('xcb')
xcb_composite = dependency('xcb-composite')
+x11_xcb = dependency('x11-xcb')
libcap = dependency('libcap', required: false)
systemd = dependency('libsystemd', required: false)
elogind = dependency('libelogind', required: false)
@@ -85,6 +86,7 @@ wlr_deps = [
pixman,
xcb,
xcb_composite,
+ x11_xcb,
libcap,
systemd,
math,