--- /dev/null
+/**
+ * @file glx.c
+ * @brief GLX video output module for VLC media player
+ */
+/*****************************************************************************
+ * Copyright © 2004 the VideoLAN team
+ * Copyright © 2009 Rémi Denis-Courmont
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <assert.h>
+
+#include <xcb/xcb.h>
+#include <X11/Xlib-xcb.h>
+#include <GL/glx.h>
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_vout_display.h>
+#include <vlc_vout_opengl.h>
+#include "../opengl.h"
+
+#include "xcb_vlc.h"
+
+static int Open (vlc_object_t *);
+static void Close (vlc_object_t *);
+
+/*
+ * Module descriptor
+ */
+vlc_module_begin ()
+ set_shortname (N_("GLX"))
+ set_description (N_("GLX video output (XCB)"))
+ set_category (CAT_VIDEO)
+ set_subcategory (SUBCAT_VIDEO_VOUT)
+ set_capability ("vout display", 20)
+ set_callbacks (Open, Close)
+
+ add_shortcut ("xcb-glx")
+ add_shortcut ("glx")
+vlc_module_end ()
+
+struct vout_display_sys_t
+{
+ Display *display; /* Xlib instance */
+ vout_window_t *embed; /* VLC window (when windowed) */
+
+ xcb_cursor_t cursor; /* blank cursor */
+ xcb_window_t window; /* drawable X window */
+ bool visible; /* whether to draw */
+
+ GLXContext ctx;
+ vout_opengl_t gl;
+ vout_display_opengl_t vgl;
+ picture_pool_t *pool; /* picture pool */
+};
+
+static picture_t *Get (vout_display_t *);
+static void PictureRender (vout_display_t *, picture_t *);
+static void PictureDisplay (vout_display_t *, picture_t *);
+static int Control (vout_display_t *, int, va_list);
+static void Manage (vout_display_t *);
+
+static void SwapBuffers (vout_opengl_t *gl);
+
+static vout_window_t *MakeWindow (vout_display_t *vd)
+{
+ vout_window_cfg_t wnd_cfg;
+
+ memset (&wnd_cfg, 0, sizeof (wnd_cfg));
+ wnd_cfg.type = VOUT_WINDOW_TYPE_XID;
+ wnd_cfg.width = vd->cfg->display.width;
+ wnd_cfg.height = vd->cfg->display.height;
+
+ vout_window_t *wnd = vout_display_NewWindow (vd, &wnd_cfg);
+ if (wnd == NULL)
+ msg_Err (vd, "parent window not available");
+ return wnd;
+}
+
+static const xcb_screen_t *
+FindWindow (vout_display_t *vd, xcb_connection_t *conn,
+ unsigned *restrict pnum, uint8_t *restrict pdepth)
+{
+ vout_display_sys_t *sys = vd->sys;
+
+ xcb_get_geometry_reply_t *geo =
+ xcb_get_geometry_reply (conn,
+ xcb_get_geometry (conn, sys->embed->xid), NULL);
+ if (geo == NULL)
+ {
+ msg_Err (vd, "parent window not valid");
+ return NULL;
+ }
+
+ xcb_window_t root = geo->root;
+ *pdepth = geo->depth;
+ free (geo);
+
+ /* Find the selected screen */
+ const xcb_setup_t *setup = xcb_get_setup (conn);
+ const xcb_screen_t *screen = NULL;
+ unsigned num = 0;
+
+ for (xcb_screen_iterator_t i = xcb_setup_roots_iterator (setup);
+ i.rem > 0;
+ xcb_screen_next (&i))
+ {
+ if (i.data->root == root)
+ {
+ screen = i.data;
+ break;
+ }
+ num++;
+ }
+
+ if (screen == NULL)
+ {
+ msg_Err (vd, "parent window screen not found");
+ return NULL;
+ }
+ msg_Dbg (vd, "using screen 0x%"PRIx32 " (number: %u)", root, num);
+ *pnum = num;
+ return screen;
+}
+
+/**
+ * Probe the X server.
+ */
+static int Open (vlc_object_t *obj)
+{
+ vout_display_t *vd = (vout_display_t *)obj;
+ vout_display_sys_t *sys = malloc (sizeof (*sys));
+
+ if (sys == NULL)
+ return VLC_ENOMEM;
+
+ vd->sys = sys;
+ sys->pool = NULL;
+ sys->gl.sys = NULL;
+
+ /* Get window */
+ sys->embed = MakeWindow (vd);
+ if (sys->embed == NULL)
+ {
+ free (sys);
+ return VLC_EGENERIC;
+ }
+
+ /* Connect to X server */
+ Display *dpy = XOpenDisplay (sys->embed->x11_display);
+ if (dpy == NULL)
+ {
+ vout_display_DeleteWindow (vd, sys->embed);
+ free (sys);
+ return VLC_EGENERIC;
+ }
+ sys->display = dpy;
+ sys->ctx = NULL;
+ XSetEventQueueOwner (dpy, XCBOwnsEventQueue);
+
+ xcb_connection_t *conn = XGetXCBConnection (dpy);
+ assert (conn);
+ RegisterMouseEvents (obj, conn, sys->embed->xid);
+
+ /* Find window parameters */
+ unsigned snum;
+ uint8_t depth;
+ const xcb_screen_t *scr = FindWindow (vd, conn, &snum, &depth);
+ if (scr == NULL)
+ goto error;
+
+ /* Determine our pixel format */
+ {
+ int attr[] = {
+ GLX_RGBA,
+ GLX_RED_SIZE, 5,
+ GLX_GREEN_SIZE, 5,
+ GLX_BLUE_SIZE, 5,
+ GLX_DOUBLEBUFFER,
+ 0 };
+
+ XVisualInfo *vi = glXChooseVisual (dpy, snum, attr);
+ if (vi == NULL)
+ {
+ msg_Err (vd, "cannot find GLX 1.2 visual" );
+ goto error;
+ }
+
+ sys->ctx = glXCreateContext (dpy, vi, 0, True);
+ XFree (vi);
+ if (sys->ctx == NULL)
+ {
+ msg_Err (vd, "cannot create GLX context");
+ goto error;
+ }
+ }
+
+ /* Create window */
+ unsigned width, height;
+ if (GetWindowSize (sys->embed, conn, &width, &height))
+ goto error;
+
+ sys->window = xcb_generate_id (conn);
+ {
+ const uint32_t mask = XCB_CW_EVENT_MASK;
+ const uint32_t values[] = {
+ /* XCB_CW_EVENT_MASK */
+ XCB_EVENT_MASK_VISIBILITY_CHANGE,
+ };
+ xcb_void_cookie_t c;
+
+ c = xcb_create_window_checked (conn, depth, sys->window,
+ sys->embed->xid, 0, 0, width, height, 0,
+ XCB_WINDOW_CLASS_INPUT_OUTPUT,
+ 0, mask, values);
+ xcb_map_window (conn, sys->window);
+
+ if (CheckError (vd, conn, "cannot create X11 window", c))
+ goto error;
+ }
+ msg_Dbg (vd, "using X11 window %08"PRIx32, sys->window);
+
+ if (glXMakeCurrent (dpy, sys->window, sys->ctx) == False)
+ goto error;
+
+ /* Initialize common OpenGL video display */
+ sys->gl.lock = NULL;
+ sys->gl.unlock = NULL;
+ sys->gl.swap = SwapBuffers;
+ sys->gl.sys = sys;
+
+ if (vout_display_opengl_Init (&sys->vgl, &vd->fmt, &sys->gl))
+ {
+ sys->gl.sys = NULL;
+ goto error;
+ }
+
+ sys->cursor = CreateBlankCursor (conn, scr);
+ sys->visible = false;
+
+ /* */
+ vout_display_info_t info = vd->info;
+ info.has_pictures_invalid = false;
+
+ /* Setup vout_display_t once everything is fine */
+ vd->info = info;
+
+ vd->get = Get;
+ vd->prepare = PictureRender;
+ vd->display = PictureDisplay;
+ vd->control = Control;
+ vd->manage = Manage;
+
+ /* */
+ vout_display_SendEventFullscreen (vd, false);
+ vout_display_SendEventDisplaySize (vd, width, height, false);
+
+ return VLC_SUCCESS;
+
+error:
+ Close (obj);
+ return VLC_EGENERIC;
+}
+
+
+/**
+ * Disconnect from the X server.
+ */
+static void Close (vlc_object_t *obj)
+{
+ vout_display_t *vd = (vout_display_t *)obj;
+ vout_display_sys_t *sys = vd->sys;
+ Display *dpy = sys->display;
+
+ if (sys->gl.sys != NULL)
+ vout_display_opengl_Clean (&sys->vgl);
+
+ glXMakeCurrent (dpy, 0, NULL);
+ if (sys->ctx != NULL)
+ glXDestroyContext (dpy, sys->ctx);
+ XCloseDisplay (dpy);
+ vout_display_DeleteWindow (vd, sys->embed);
+ free (sys);
+}
+
+static void SwapBuffers (vout_opengl_t *gl)
+{
+ vout_display_sys_t *sys = gl->sys;
+
+ glXSwapBuffers (sys->display, sys->window);
+}
+
+/**
+ * Return a direct buffer
+ */
+static picture_t *Get (vout_display_t *vd)
+{
+ vout_display_sys_t *sys = vd->sys;
+
+ if (!sys->pool)
+ {
+ sys->pool = vout_display_opengl_GetPool (&sys->vgl);
+ if (!sys->pool)
+ return NULL;
+ }
+ return picture_pool_Get (sys->pool);
+}
+
+static void PictureRender (vout_display_t *vd, picture_t *pic)
+{
+ vout_display_sys_t *sys = vd->sys;
+
+ vout_display_opengl_Prepare (&sys->vgl, pic);
+}
+
+static void PictureDisplay (vout_display_t *vd, picture_t *pic)
+{
+ vout_display_sys_t *sys = vd->sys;
+
+ vout_display_opengl_Display (&sys->vgl, &vd->source);
+ picture_Release (pic);
+}
+
+static int Control (vout_display_t *vd, int query, va_list ap)
+{
+ vout_display_sys_t *sys = vd->sys;
+
+ switch (query)
+ {
+ case VOUT_DISPLAY_CHANGE_FULLSCREEN:
+ {
+ const vout_display_cfg_t *c = va_arg (ap, const vout_display_cfg_t *);
+ return vout_window_SetFullScreen (sys->embed, c->is_fullscreen);
+ }
+
+ case VOUT_DISPLAY_CHANGE_ON_TOP:
+ {
+ int b_on_top = (int)va_arg (ap, int);
+ return vout_window_SetOnTop (sys->embed, b_on_top);
+ }
+
+ case VOUT_DISPLAY_CHANGE_DISPLAY_SIZE:
+ case VOUT_DISPLAY_CHANGE_DISPLAY_FILLED:
+ case VOUT_DISPLAY_CHANGE_ZOOM:
+ case VOUT_DISPLAY_CHANGE_SOURCE_ASPECT:
+ case VOUT_DISPLAY_CHANGE_SOURCE_CROP:
+ msg_Err (vd, "unimplemented control request");
+ return VLC_EGENERIC;
+
+ /* Hide the mouse. It will be send when
+ * vout_display_t::info.b_hide_mouse is false */
+ case VOUT_DISPLAY_HIDE_MOUSE:
+ xcb_change_window_attributes (XGetXCBConnection (sys->display),
+ sys->embed->xid,
+ XCB_CW_CURSOR, &(uint32_t){ sys->cursor });
+ return VLC_SUCCESS;
+ case VOUT_DISPLAY_RESET_PICTURES:
+ assert (0);
+ default:
+ msg_Err (vd, "Unknown request in XCB vout display");
+ return VLC_EGENERIC;
+ }
+}
+
+static void Manage (vout_display_t *vd)
+{
+ vout_display_sys_t *sys = vd->sys;
+ xcb_connection_t *conn = XGetXCBConnection (sys->display);
+
+ ManageEvent (vd, conn, &sys->visible);
+}
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