Xwayland DDX

Started out as an Xorg module to be used from Xorg drivers to let
Xorg run under a wayland server.  The idea was to be able to reuse the
2D acceleration from the Xorg driver.  Now with glamor being credible,
a better plan is to just make Xwayland its own DDX, similar to Xwin
and Xquartz.  This is a much better fit, as much of the code in the
original approach had to hack around Xorg doing Xorg things like take
over the VT, probe input devices and read config files.  Another big win
is that Xwayland dosn't need to be setuid root.

The Xwayland support for DRI3, Glamor and render nodes was done by
Axel Davy <axel.davy@ens.fr>, who also did a lot of work on the rebase
to the Xwayland DDX.

Contributions from:

  Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
  Corentin Chary <corentin.chary@gmail.com>
  Daniel Stone <daniel@fooishbar.org>
  Kristian Høgsberg <krh@bitplanet.net>
  Robert Bragg <robert@linux.intel.com>
  Scott Moreau <oreaus@gmail.com>
  Tiago Vignatti <tiago.vignatti@intel.com>
  Giovanni Campagna <gcampagn@redhat.com>
  Jonas Ådahl <jadahl@gmail.com>
  Ray Strode <rstrode@redhat.com>
  Trevor McCort <tjmccort@gmail.com>
  Rui Matos <tiagomatos@gmail.com>
  Axel Davy <axel.davy@ens.fr>
  Jasper St. Pierre <jstpierre@mecheye.net>

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Axel Davy <axel.davy@ens.fr>

1 files changed, 164 insertions, 0 deletions

diff --git a/hw/xwayland/xwayland.h b/hw/xwayland/xwayland.h
new file mode 100644
index 000000000..8157e71ff
--- /dev/null
+++ b/hw/xwayland/xwayland.h
@@ -0,0 +1,164 @@
+/*
+ * Copyright © 2014 Intel Corporation
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of the
+ * copyright holders not be used in advertising or publicity
+ * pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied
+ * warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#ifndef XWAYLAND_H
+#define XWAYLAND_H
+
+#include <dix-config.h>
+#include <xorg-server.h>
+
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <wayland-client.h>
+
+#include <X11/X.h>
+
+#include <fb.h>
+#include <input.h>
+#include <dix.h>
+#include <randrstr.h>
+#include <exevents.h>
+
+struct xwl_screen {
+    int width;
+    int height;
+    int depth;
+    ScreenPtr screen;
+    WindowPtr pointer_limbo_window;
+    int expecting_event;
+
+    int wm_fd;
+    int listen_fds[5];
+    int listen_fd_count;
+    int rootless;
+
+    CreateScreenResourcesProcPtr CreateScreenResources;
+    CloseScreenProcPtr CloseScreen;
+    CreateWindowProcPtr CreateWindow;
+    DestroyWindowProcPtr DestroyWindow;
+    RealizeWindowProcPtr RealizeWindow;
+    UnrealizeWindowProcPtr UnrealizeWindow;
+    XYToWindowProcPtr XYToWindow;
+
+    struct xorg_list output_list;
+    struct xorg_list seat_list;
+    struct xorg_list damage_window_list;
+
+    int wayland_fd;
+    struct wl_display *display;
+    struct wl_registry *registry;
+    struct wl_registry *input_registry;
+    struct wl_compositor *compositor;
+    struct wl_shm *shm;
+    struct wl_shell *shell;
+
+    uint32_t serial;
+
+#define XWL_FORMAT_ARGB8888 (1 << 0)
+#define XWL_FORMAT_XRGB8888 (1 << 1)
+#define XWL_FORMAT_RGB565   (1 << 2)
+
+    int prepare_read;
+};
+
+struct xwl_window {
+    struct xwl_screen *xwl_screen;
+    struct wl_surface *surface;
+    struct wl_shell_surface *shell_surface;
+    WindowPtr window;
+    DamagePtr damage;
+    struct xorg_list link_damage;
+};
+
+#define MODIFIER_META 0x01
+
+struct xwl_seat {
+    DeviceIntPtr pointer;
+    DeviceIntPtr keyboard;
+    struct xwl_screen *xwl_screen;
+    struct wl_seat *seat;
+    struct wl_pointer *wl_pointer;
+    struct wl_keyboard *wl_keyboard;
+    struct wl_array keys;
+    struct wl_surface *cursor;
+    struct xwl_window *focus_window;
+    uint32_t id;
+    uint32_t pointer_enter_serial;
+    struct xorg_list link;
+    CursorPtr x_cursor;
+
+    wl_fixed_t horizontal_scroll;
+    wl_fixed_t vertical_scroll;
+    uint32_t scroll_time;
+
+    size_t keymap_size;
+    char *keymap;
+    struct wl_surface *keyboard_focus;
+};
+
+struct xwl_output {
+    struct xorg_list link;
+    struct wl_output *output;
+    struct xwl_screen *xwl_screen;
+    RROutputPtr randr_output;
+    RRCrtcPtr randr_crtc;
+    int32_t x, y, width, height;
+    Rotation rotation;
+};
+
+struct xwl_pixmap;
+
+Bool xwl_screen_init_cursor(struct xwl_screen *xwl_screen);
+
+struct xwl_screen *xwl_screen_get(ScreenPtr screen);
+
+void xwl_seat_set_cursor(struct xwl_seat *xwl_seat);
+
+void xwl_seat_destroy(struct xwl_seat *xwl_seat);
+
+Bool xwl_screen_init_output(struct xwl_screen *xwl_screen);
+
+struct xwl_output *xwl_output_create(struct xwl_screen *xwl_screen,
+                                     uint32_t id);
+
+void xwl_output_destroy(struct xwl_output *xwl_output);
+
+RRModePtr xwayland_cvt(int HDisplay, int VDisplay,
+                       float VRefresh, Bool Reduced, Bool Interlaced);
+
+void xwl_pixmap_set_private(PixmapPtr pixmap, struct xwl_pixmap *xwl_pixmap);
+struct xwl_pixmap *xwl_pixmap_get(PixmapPtr pixmap);
+
+
+Bool xwl_shm_create_screen_resources(ScreenPtr screen);
+PixmapPtr xwl_shm_create_pixmap(ScreenPtr screen, int width, int height,
+                                int depth, unsigned int hint);
+Bool xwl_shm_destroy_pixmap(PixmapPtr pixmap);
+struct wl_buffer *xwl_shm_pixmap_get_wl_buffer(PixmapPtr pixmap);
+
+
+#endif