1457 lines
39 KiB
C
1457 lines
39 KiB
C
/*
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* Xephyr - A kdrive X server thats runs in a host X window.
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* Authored by Matthew Allum <mallum@o-hand.com>
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*
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* Copyright © 2004 Nokia
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Nokia not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Nokia makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* NOKIA DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL NOKIA BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include <kdrive-config.h>
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#endif
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/*
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* including some server headers (like kdrive-config.h)
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* might define the macro _XSERVER64
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* on 64 bits machines. That macro must _NOT_ be defined for Xlib
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* client code, otherwise bad things happen.
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* So let's undef that macro if necessary.
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*/
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#ifdef _XSERVER64
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#undef _XSERVER64
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#endif
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#include "hostx.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h> /* for memset */
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#include <time.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <sys/time.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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#include <X11/keysym.h>
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#include <X11/extensions/XShm.h>
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#include <X11/extensions/shape.h>
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#ifdef XF86DRI
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#include <GL/glx.h>
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#endif /* XF86DRI */
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#include "ephyrlog.h"
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#ifdef XF86DRI
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extern Bool XF86DRIQueryExtension (Display *dpy,
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int *event_basep,
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int *error_basep);
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#endif
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/*
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* All xlib calls go here, which gets built as its own .a .
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* Mixing kdrive and xlib headers causes all sorts of types
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* to get clobbered.
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*/
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struct EphyrHostScreen
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{
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Window win;
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Window win_pre_existing; /* Set via -parent option like xnest */
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Window peer_win; /* Used for GL; should be at most one */
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XImage *ximg;
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int win_width, win_height;
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int server_depth;
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unsigned char *fb_data; /* only used when host bpp != server bpp */
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XShmSegmentInfo shminfo;
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void *info; /* Pointer to the screen this is associated with */
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int mynum; /* Screen number */
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};
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struct EphyrHostXVars
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{
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char *server_dpy_name;
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Display *dpy;
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int screen;
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Visual *visual;
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Window winroot;
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GC gc;
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int depth;
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Bool use_host_cursor;
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Bool use_fullscreen;
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Bool have_shm;
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int n_screens;
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struct EphyrHostScreen *screens;
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long damage_debug_msec;
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unsigned long cmap[256];
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};
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/* memset ( missing> ) instead of below */
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/*static EphyrHostXVars HostX = { "?", 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};*/
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static EphyrHostXVars HostX;
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static int HostXWantDamageDebug = 0;
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extern EphyrKeySyms ephyrKeySyms;
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extern int monitorResolution;
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char *ephyrResName = NULL;
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int ephyrResNameFromCmd = 0;
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char *ephyrTitle = NULL;
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static void
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hostx_set_fullscreen_hint(void);
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/* X Error traps */
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static int trapped_error_code = 0;
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static int (*old_error_handler) (Display *d, XErrorEvent *e);
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#define host_depth_matches_server(_vars) (HostX.depth == (_vars)->server_depth)
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static struct EphyrHostScreen *
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host_screen_from_screen_info (EphyrScreenInfo *screen)
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{
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int i;
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for (i = 0 ; i < HostX.n_screens ; i++)
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{
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if ( HostX.screens[i].info == screen)
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{
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return &HostX.screens[i];
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}
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}
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return NULL;
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}
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static int
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error_handler(Display *display,
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XErrorEvent *error)
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{
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trapped_error_code = error->error_code;
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return 0;
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}
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static void
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hostx_errors_trap(void)
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{
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trapped_error_code = 0;
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old_error_handler = XSetErrorHandler(error_handler);
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}
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static int
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hostx_errors_untrap(void)
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{
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XSetErrorHandler(old_error_handler);
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return trapped_error_code;
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}
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int
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hostx_want_screen_size (EphyrScreenInfo screen, int *width, int *height )
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{
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struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
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if (host_screen &&
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(host_screen->win_pre_existing != None ||
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HostX.use_fullscreen == True))
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{
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*width = host_screen->win_width;
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*height = host_screen->win_height;
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return 1;
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}
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return 0;
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}
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void
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hostx_add_screen (EphyrScreenInfo screen,
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unsigned long win_id,
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int screen_num)
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{
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int index = HostX.n_screens;
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HostX.n_screens += 1;
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HostX.screens = realloc (HostX.screens,
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HostX.n_screens * sizeof(struct EphyrHostScreen));
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memset (&HostX.screens[index], 0, sizeof (struct EphyrHostScreen));
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HostX.screens[index].info = screen;
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HostX.screens[index].win_pre_existing = win_id;
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}
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void
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hostx_set_display_name (char *name)
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{
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HostX.server_dpy_name = strdup (name);
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}
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void
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hostx_set_screen_number(EphyrScreenInfo screen, int number)
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{
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struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
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if (host_screen) {
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host_screen->mynum = number;
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hostx_set_win_title (host_screen->info, "") ;
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}}
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void
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hostx_set_win_title (EphyrScreenInfo screen, char *extra_text)
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{
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struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
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if (!host_screen)
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return;
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if (ephyrTitle) {
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XStoreName(HostX.dpy, host_screen->win, ephyrTitle);
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} else {
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#define BUF_LEN 256
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char buf[BUF_LEN+1];
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memset (buf, 0, BUF_LEN+1) ;
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snprintf (buf, BUF_LEN, "Xephyr on %s.%d %s",
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HostX.server_dpy_name,
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host_screen->mynum,
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(extra_text != NULL) ? extra_text : "");
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XStoreName (HostX.dpy, host_screen->win, buf);
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}
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}
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int
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hostx_want_host_cursor (void)
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{
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return HostX.use_host_cursor;
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}
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void
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hostx_use_host_cursor (void)
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{
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HostX.use_host_cursor = True;
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}
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int
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hostx_want_preexisting_window (EphyrScreenInfo screen)
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{
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struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
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if (host_screen && host_screen->win_pre_existing)
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{
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return 1;
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}
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else
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{
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return 0;
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}
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}
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void
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hostx_use_fullscreen (void)
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{
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HostX.use_fullscreen = True;
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}
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int
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hostx_want_fullscreen (void)
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{
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return HostX.use_fullscreen;
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}
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static void
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hostx_set_fullscreen_hint (void)
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{
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Atom atom_WINDOW_STATE, atom_WINDOW_STATE_FULLSCREEN;
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int index;
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atom_WINDOW_STATE
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= XInternAtom(HostX.dpy, "_NET_WM_STATE", False);
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atom_WINDOW_STATE_FULLSCREEN
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= XInternAtom(HostX.dpy, "_NET_WM_STATE_FULLSCREEN",False);
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for (index = 0 ; index < HostX.n_screens ; index++)
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{
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XChangeProperty (HostX.dpy, HostX.screens[index].win,
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atom_WINDOW_STATE, XA_ATOM, 32,
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PropModeReplace,
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(unsigned char *)&atom_WINDOW_STATE_FULLSCREEN, 1);
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}
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}
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static void
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hostx_toggle_damage_debug (void)
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{
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HostXWantDamageDebug ^= 1;
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}
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void
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hostx_handle_signal (int signum)
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{
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hostx_toggle_damage_debug();
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EPHYR_DBG ("Signal caught. Damage Debug:%i\n",
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HostXWantDamageDebug);
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}
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void
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hostx_use_resname (char *name, int fromcmd)
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{
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ephyrResName = name;
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ephyrResNameFromCmd = fromcmd;
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}
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void
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hostx_set_title (char *title)
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{
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ephyrTitle = title;
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}
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int
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hostx_init (void)
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{
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XSetWindowAttributes attr;
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Cursor empty_cursor;
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Pixmap cursor_pxm;
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XColor col;
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int index;
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char *tmpstr;
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XClassHint *class_hint;
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attr.event_mask =
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ButtonPressMask
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|ButtonReleaseMask
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|PointerMotionMask
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|KeyPressMask
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|KeyReleaseMask
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|ExposureMask;
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EPHYR_DBG("mark");
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if ((HostX.dpy = XOpenDisplay(getenv("DISPLAY"))) == NULL)
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{
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fprintf(stderr, "\nXephyr cannot open host display. Is DISPLAY set?\n");
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exit(1);
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}
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HostX.screen = DefaultScreen(HostX.dpy);
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HostX.winroot = RootWindow(HostX.dpy, HostX.screen);
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HostX.gc = XCreateGC(HostX.dpy, HostX.winroot, 0, NULL);
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HostX.depth = DefaultDepth(HostX.dpy, HostX.screen);
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HostX.visual = DefaultVisual(HostX.dpy, HostX.screen);
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class_hint = XAllocClassHint();
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for (index = 0 ; index < HostX.n_screens ; index++)
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{
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struct EphyrHostScreen *host_screen = &HostX.screens[index];
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host_screen->server_depth = HostX.depth;
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if (host_screen->win_pre_existing != None)
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{
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Status result;
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XWindowAttributes prewin_attr;
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/* Get screen size from existing window */
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hostx_errors_trap();
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result = XGetWindowAttributes (HostX.dpy,
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host_screen->win_pre_existing,
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&prewin_attr);
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if (hostx_errors_untrap() || !result)
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{
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fprintf (stderr, "\nXephyr -parent window' does not exist!\n");
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exit (1);
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}
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host_screen->win_width = prewin_attr.width;
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host_screen->win_height = prewin_attr.height;
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host_screen->win = XCreateWindow (HostX.dpy,
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host_screen->win_pre_existing,
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0,0,
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host_screen->win_width,
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host_screen->win_height,
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0,
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CopyFromParent,
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CopyFromParent,
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CopyFromParent,
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CWEventMask,
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&attr);
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}
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else
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{
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host_screen->win = XCreateWindow (HostX.dpy,
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HostX.winroot,
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0,0,100,100, /* will resize */
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0,
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CopyFromParent,
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CopyFromParent,
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CopyFromParent,
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CWEventMask,
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&attr);
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hostx_set_win_title (host_screen->info,
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"(ctrl+shift grabs mouse and keyboard)");
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if (HostX.use_fullscreen)
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{
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host_screen->win_width = DisplayWidth(HostX.dpy, HostX.screen);
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host_screen->win_height = DisplayHeight(HostX.dpy, HostX.screen);
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hostx_set_fullscreen_hint();
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}
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if (class_hint)
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{
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tmpstr = getenv("RESOURCE_NAME");
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if (tmpstr && (!ephyrResNameFromCmd))
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ephyrResName = tmpstr;
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class_hint->res_name = ephyrResName;
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class_hint->res_class = "Xephyr";
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XSetClassHint(hostx_get_display(), host_screen->win, class_hint);
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}
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}
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}
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if (class_hint)
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XFree(class_hint);
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XParseColor (HostX.dpy, DefaultColormap (HostX.dpy,HostX.screen),
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"red", &col);
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XAllocColor (HostX.dpy, DefaultColormap (HostX.dpy, HostX.screen),
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&col);
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XSetForeground (HostX.dpy, HostX.gc, col.pixel);
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if (!hostx_want_host_cursor ())
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{
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/* Ditch the cursor, we provide our 'own' */
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cursor_pxm = XCreatePixmap (HostX.dpy, HostX.winroot, 1, 1, 1);
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memset (&col, 0, sizeof (col));
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empty_cursor = XCreatePixmapCursor (HostX.dpy,
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cursor_pxm, cursor_pxm,
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&col, &col, 1, 1);
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for ( index = 0 ; index < HostX.n_screens ; index++ )
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{
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XDefineCursor (HostX.dpy,
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HostX.screens[index].win,
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empty_cursor);
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}
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XFreePixmap (HostX.dpy, cursor_pxm);
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}
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for (index = 0 ; index < HostX.n_screens ; index++)
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{
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HostX.screens[index].ximg = NULL;
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}
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/* Try to get share memory ximages for a little bit more speed */
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if (!XShmQueryExtension(HostX.dpy) || getenv("XEPHYR_NO_SHM"))
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{
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fprintf(stderr, "\nXephyr unable to use SHM XImages\n");
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HostX.have_shm = False;
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}
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else
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{
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/* Really really check we have shm - better way ?*/
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XShmSegmentInfo shminfo;
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HostX.have_shm = True;
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shminfo.shmid=shmget(IPC_PRIVATE, 1, IPC_CREAT|0777);
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shminfo.shmaddr=shmat(shminfo.shmid,0,0);
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shminfo.readOnly=True;
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hostx_errors_trap();
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XShmAttach(HostX.dpy, &shminfo);
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XSync(HostX.dpy, False);
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if (hostx_errors_untrap())
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{
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fprintf(stderr, "\nXephyr unable to use SHM XImages\n");
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HostX.have_shm = False;
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}
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shmdt(shminfo.shmaddr);
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shmctl(shminfo.shmid, IPC_RMID, 0);
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}
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XFlush(HostX.dpy);
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|
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/* Setup the pause time between paints when debugging updates */
|
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|
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HostX.damage_debug_msec = 20000; /* 1/50 th of a second */
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|
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if (getenv ("XEPHYR_PAUSE"))
|
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{
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HostX.damage_debug_msec = strtol (getenv ("XEPHYR_PAUSE"), NULL, 0);
|
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EPHYR_DBG ("pause is %li\n", HostX.damage_debug_msec);
|
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}
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return 1;
|
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}
|
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|
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int
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hostx_get_depth (void)
|
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{
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return HostX.depth;
|
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}
|
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|
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int
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hostx_get_server_depth (EphyrScreenInfo screen)
|
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{
|
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struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
|
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|
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return (host_screen ? host_screen->server_depth : 0);
|
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}
|
|
|
|
void
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hostx_set_server_depth (EphyrScreenInfo screen, int depth)
|
|
{
|
|
struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
|
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|
|
if (host_screen)
|
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host_screen->server_depth = depth;
|
|
}
|
|
|
|
int
|
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hostx_get_bpp (EphyrScreenInfo screen)
|
|
{
|
|
struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
|
|
|
|
if (!host_screen)
|
|
return 0;
|
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|
|
if (host_depth_matches_server (host_screen))
|
|
return HostX.visual->bits_per_rgb;
|
|
else
|
|
return host_screen->server_depth; /*XXX correct ?*/
|
|
}
|
|
|
|
void
|
|
hostx_get_visual_masks (EphyrScreenInfo screen,
|
|
CARD32 *rmsk,
|
|
CARD32 *gmsk,
|
|
CARD32 *bmsk)
|
|
{
|
|
struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
|
|
|
|
if (!host_screen)
|
|
return;
|
|
|
|
if (host_depth_matches_server(host_screen))
|
|
{
|
|
*rmsk = HostX.visual->red_mask;
|
|
*gmsk = HostX.visual->green_mask;
|
|
*bmsk = HostX.visual->blue_mask;
|
|
}
|
|
else if (host_screen->server_depth == 16)
|
|
{
|
|
/* Assume 16bpp 565 */
|
|
*rmsk = 0xf800;
|
|
*gmsk = 0x07e0;
|
|
*bmsk = 0x001f;
|
|
}
|
|
else
|
|
{
|
|
*rmsk = 0x0;
|
|
*gmsk = 0x0;
|
|
*bmsk = 0x0;
|
|
}
|
|
}
|
|
|
|
static int
|
|
hostx_calculate_color_shift(unsigned long mask)
|
|
{
|
|
int shift = 1;
|
|
/* count # of bits in mask */
|
|
while ((mask = (mask >> 1))) shift++;
|
|
/* cmap entry is an unsigned char so adjust it by size of that */
|
|
shift = shift - sizeof(unsigned char) * 8;
|
|
if (shift < 0) shift = 0;
|
|
return shift;
|
|
}
|
|
|
|
void
|
|
hostx_set_cmap_entry(unsigned char idx,
|
|
unsigned char r,
|
|
unsigned char g,
|
|
unsigned char b)
|
|
{
|
|
/* need to calculate the shifts for RGB because server could be BGR. */
|
|
/* XXX Not sure if this is correct for 8 on 16, but this works for 8 on 24.*/
|
|
static int rshift, bshift, gshift = 0;
|
|
static int first_time = 1;
|
|
if (first_time) {
|
|
first_time = 0;
|
|
rshift = hostx_calculate_color_shift(HostX.visual->red_mask);
|
|
gshift = hostx_calculate_color_shift(HostX.visual->green_mask);
|
|
bshift = hostx_calculate_color_shift(HostX.visual->blue_mask);
|
|
}
|
|
HostX.cmap[idx] = ((r << rshift) & HostX.visual->red_mask) |
|
|
((g << gshift) & HostX.visual->green_mask) |
|
|
((b << bshift) & HostX.visual->blue_mask);
|
|
}
|
|
|
|
/**
|
|
* hostx_screen_init creates the XImage that will contain the front buffer of
|
|
* the ephyr screen, and possibly offscreen memory.
|
|
*
|
|
* @param width width of the screen
|
|
* @param height height of the screen
|
|
* @param buffer_height height of the rectangle to be allocated.
|
|
*
|
|
* hostx_screen_init() creates an XImage, using MIT-SHM if it's available.
|
|
* buffer_height can be used to create a larger offscreen buffer, which is used
|
|
* by fakexa for storing offscreen pixmap data.
|
|
*/
|
|
void*
|
|
hostx_screen_init (EphyrScreenInfo screen,
|
|
int width, int height,
|
|
int buffer_height)
|
|
{
|
|
int bitmap_pad;
|
|
Bool shm_success = False;
|
|
XSizeHints *size_hints;
|
|
|
|
struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
|
|
if (!host_screen)
|
|
{
|
|
fprintf (stderr, "%s: Error in accessing hostx data\n", __func__ );
|
|
exit(1);
|
|
}
|
|
|
|
EPHYR_DBG ("host_screen=%p wxh=%dx%d, buffer_height=%d",
|
|
host_screen, width, height, buffer_height);
|
|
|
|
if (host_screen->ximg != NULL)
|
|
{
|
|
/* Free up the image data if previously used
|
|
* i.ie called by server reset
|
|
*/
|
|
|
|
if (HostX.have_shm)
|
|
{
|
|
XShmDetach(HostX.dpy, &host_screen->shminfo);
|
|
XDestroyImage (host_screen->ximg);
|
|
shmdt(host_screen->shminfo.shmaddr);
|
|
shmctl(host_screen->shminfo.shmid, IPC_RMID, 0);
|
|
}
|
|
else
|
|
{
|
|
if (host_screen->ximg->data)
|
|
{
|
|
free(host_screen->ximg->data);
|
|
host_screen->ximg->data = NULL;
|
|
}
|
|
|
|
XDestroyImage(host_screen->ximg);
|
|
}
|
|
}
|
|
|
|
if (HostX.have_shm)
|
|
{
|
|
host_screen->ximg = XShmCreateImage (HostX.dpy, HostX.visual, HostX.depth,
|
|
ZPixmap, NULL, &host_screen->shminfo,
|
|
width, buffer_height );
|
|
|
|
host_screen->shminfo.shmid =
|
|
shmget(IPC_PRIVATE,
|
|
host_screen->ximg->bytes_per_line * buffer_height,
|
|
IPC_CREAT|0777);
|
|
host_screen->ximg->data = shmat(host_screen->shminfo.shmid, 0, 0);
|
|
host_screen->shminfo.shmaddr = host_screen->ximg->data;
|
|
|
|
if (host_screen->ximg->data == (char *)-1)
|
|
{
|
|
EPHYR_DBG("Can't attach SHM Segment, falling back to plain XImages");
|
|
HostX.have_shm = False;
|
|
XDestroyImage(host_screen->ximg);
|
|
shmctl(host_screen->shminfo.shmid, IPC_RMID, 0);
|
|
}
|
|
else
|
|
{
|
|
EPHYR_DBG("SHM segment attached %p", host_screen->shminfo.shmaddr);
|
|
host_screen->shminfo.readOnly = False;
|
|
XShmAttach(HostX.dpy, &host_screen->shminfo);
|
|
shm_success = True;
|
|
}
|
|
}
|
|
|
|
if (!shm_success)
|
|
{
|
|
bitmap_pad = ( HostX.depth > 16 )? 32 : (( HostX.depth > 8 )? 16 : 8 );
|
|
|
|
EPHYR_DBG("Creating image %dx%d for screen host_screen=%p\n",
|
|
width, buffer_height, host_screen );
|
|
host_screen->ximg = XCreateImage (HostX.dpy,
|
|
HostX.visual,
|
|
HostX.depth,
|
|
ZPixmap, 0, 0,
|
|
width,
|
|
buffer_height,
|
|
bitmap_pad,
|
|
0);
|
|
|
|
host_screen->ximg->data =
|
|
malloc (host_screen->ximg->bytes_per_line * buffer_height);
|
|
}
|
|
|
|
XResizeWindow (HostX.dpy, host_screen->win, width, height);
|
|
|
|
/* Ask the WM to keep our size static */
|
|
size_hints = XAllocSizeHints();
|
|
size_hints->max_width = size_hints->min_width = width;
|
|
size_hints->max_height = size_hints->min_height = height;
|
|
size_hints->flags = PMinSize|PMaxSize;
|
|
XSetWMNormalHints(HostX.dpy, host_screen->win, size_hints);
|
|
XFree(size_hints);
|
|
|
|
XMapWindow(HostX.dpy, host_screen->win);
|
|
|
|
XSync(HostX.dpy, False);
|
|
|
|
host_screen->win_width = width;
|
|
host_screen->win_height = height;
|
|
|
|
if (host_depth_matches_server(host_screen))
|
|
{
|
|
EPHYR_DBG("Host matches server");
|
|
return host_screen->ximg->data;
|
|
}
|
|
else
|
|
{
|
|
EPHYR_DBG("server bpp %i", host_screen->server_depth>>3);
|
|
host_screen->fb_data = malloc(width*buffer_height*(host_screen->server_depth>>3));
|
|
return host_screen->fb_data;
|
|
}
|
|
}
|
|
|
|
static void hostx_paint_debug_rect (struct EphyrHostScreen *host_screen,
|
|
int x, int y,
|
|
int width, int height);
|
|
|
|
void
|
|
hostx_paint_rect (EphyrScreenInfo screen,
|
|
int sx, int sy,
|
|
int dx, int dy,
|
|
int width, int height)
|
|
{
|
|
struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
|
|
|
|
EPHYR_DBG ("painting in screen %d\n", host_screen->mynum) ;
|
|
|
|
/*
|
|
* Copy the image data updated by the shadow layer
|
|
* on to the window
|
|
*/
|
|
|
|
if (HostXWantDamageDebug)
|
|
{
|
|
hostx_paint_debug_rect(host_screen, dx, dy, width, height);
|
|
}
|
|
|
|
/*
|
|
* If the depth of the ephyr server is less than that of the host,
|
|
* the kdrive fb does not point to the ximage data but to a buffer
|
|
* ( fb_data ), we shift the various bits from this onto the XImage
|
|
* so they match the host.
|
|
*
|
|
* Note, This code is pretty new ( and simple ) so may break on
|
|
* endian issues, 32 bpp host etc.
|
|
* Not sure if 8bpp case is right either.
|
|
* ... and it will be slower than the matching depth case.
|
|
*/
|
|
|
|
if (!host_depth_matches_server(host_screen))
|
|
{
|
|
int x,y,idx, bytes_per_pixel = (host_screen->server_depth>>3);
|
|
unsigned char r,g,b;
|
|
unsigned long host_pixel;
|
|
|
|
EPHYR_DBG("Unmatched host depth host_screen=%p\n", host_screen);
|
|
for (y=sy; y<sy+height; y++)
|
|
for (x=sx; x<sx+width; x++)
|
|
{
|
|
idx = (host_screen->win_width*y*bytes_per_pixel)+(x*bytes_per_pixel);
|
|
|
|
switch (host_screen->server_depth)
|
|
{
|
|
case 16:
|
|
{
|
|
unsigned short pixel = *(unsigned short*)(host_screen->fb_data+idx);
|
|
|
|
r = ((pixel & 0xf800) >> 8);
|
|
g = ((pixel & 0x07e0) >> 3);
|
|
b = ((pixel & 0x001f) << 3);
|
|
|
|
host_pixel = (r << 16) | (g << 8) | (b);
|
|
|
|
XPutPixel(host_screen->ximg, x, y, host_pixel);
|
|
break;
|
|
}
|
|
case 8:
|
|
{
|
|
unsigned char pixel = *(unsigned char*)(host_screen->fb_data+idx);
|
|
XPutPixel(host_screen->ximg, x, y, HostX.cmap[pixel]);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (HostX.have_shm)
|
|
{
|
|
XShmPutImage (HostX.dpy, host_screen->win,
|
|
HostX.gc, host_screen->ximg,
|
|
sx, sy, dx, dy, width, height, False);
|
|
}
|
|
else
|
|
{
|
|
XPutImage (HostX.dpy, host_screen->win, HostX.gc, host_screen->ximg,
|
|
sx, sy, dx, dy, width, height);
|
|
}
|
|
|
|
XSync (HostX.dpy, False);
|
|
}
|
|
|
|
static void
|
|
hostx_paint_debug_rect (struct EphyrHostScreen *host_screen,
|
|
int x, int y,
|
|
int width, int height)
|
|
{
|
|
struct timespec tspec;
|
|
|
|
tspec.tv_sec = HostX.damage_debug_msec / (1000000);
|
|
tspec.tv_nsec = (HostX.damage_debug_msec % 1000000) * 1000;
|
|
|
|
EPHYR_DBG("msec: %li tv_sec %li, tv_msec %li",
|
|
HostX.damage_debug_msec, tspec.tv_sec, tspec.tv_nsec);
|
|
|
|
/* fprintf(stderr, "Xephyr updating: %i+%i %ix%i\n", x, y, width, height); */
|
|
|
|
XFillRectangle (HostX.dpy, host_screen->win, HostX.gc, x, y, width,height);
|
|
XSync (HostX.dpy, False);
|
|
|
|
/* nanosleep seems to work better than usleep for me... */
|
|
nanosleep(&tspec, NULL);
|
|
}
|
|
|
|
void
|
|
hostx_load_keymap(void)
|
|
{
|
|
XID *keymap;
|
|
int host_width, min_keycode, max_keycode, width;
|
|
int i,j;
|
|
|
|
XDisplayKeycodes (HostX.dpy, &min_keycode, &max_keycode);
|
|
|
|
EPHYR_DBG ("min: %d, max: %d", min_keycode, max_keycode);
|
|
|
|
keymap = XGetKeyboardMapping (HostX.dpy,
|
|
min_keycode,
|
|
max_keycode - min_keycode + 1,
|
|
&host_width);
|
|
|
|
/* Try and copy the hosts keymap into our keymap to avoid loads
|
|
* of messing around.
|
|
*
|
|
* kdrive cannot can have more than 4 keysyms per keycode
|
|
* so we only copy at most the first 4 ( xorg has 6 per keycode, XVNC 2 )
|
|
*/
|
|
width = (host_width > 4) ? 4 : host_width;
|
|
|
|
ephyrKeySyms.map = (CARD32 *)calloc(sizeof(CARD32),
|
|
(max_keycode - min_keycode + 1) *
|
|
width);
|
|
if (!ephyrKeySyms.map)
|
|
return;
|
|
|
|
for (i=0; i<(max_keycode - min_keycode+1); i++)
|
|
for (j=0; j<width; j++)
|
|
ephyrKeySyms.map[(i*width)+j] = (CARD32) keymap[(i*host_width) + j];
|
|
|
|
EPHYR_DBG("keymap width, host:%d kdrive:%d", host_width, width);
|
|
|
|
ephyrKeySyms.minKeyCode = min_keycode;
|
|
ephyrKeySyms.maxKeyCode = max_keycode;
|
|
ephyrKeySyms.mapWidth = width;
|
|
|
|
XFree(keymap);
|
|
}
|
|
|
|
static struct EphyrHostScreen *
|
|
host_screen_from_window (Window w)
|
|
{
|
|
int index = 0;
|
|
struct EphyrHostScreen *result = NULL;
|
|
|
|
for (index = 0 ; index < HostX.n_screens ; index++)
|
|
{
|
|
if (HostX.screens[index].win == w || HostX.screens[index].peer_win == w)
|
|
{
|
|
result = &HostX.screens[index];
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
out:
|
|
return result;
|
|
}
|
|
|
|
int
|
|
hostx_get_event(EphyrHostXEvent *ev)
|
|
{
|
|
XEvent xev;
|
|
static int grabbed_screen = -1;
|
|
|
|
if (XPending(HostX.dpy))
|
|
{
|
|
XNextEvent(HostX.dpy, &xev);
|
|
|
|
switch (xev.type)
|
|
{
|
|
case Expose:
|
|
/* Not so great event compression, but works ok */
|
|
while (XCheckTypedWindowEvent(HostX.dpy, xev.xexpose.window,
|
|
Expose, &xev));
|
|
{
|
|
struct EphyrHostScreen *host_screen =
|
|
host_screen_from_window (xev.xexpose.window);
|
|
if (host_screen)
|
|
{
|
|
hostx_paint_rect (host_screen->info, 0, 0, 0, 0,
|
|
host_screen->win_width,
|
|
host_screen->win_height);
|
|
}
|
|
else
|
|
{
|
|
EPHYR_LOG_ERROR ("failed to get host screen\n");
|
|
ev->type = EPHYR_EV_EXPOSE;
|
|
ev->data.expose.window = xev.xexpose.window;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
|
|
case MotionNotify:
|
|
{
|
|
struct EphyrHostScreen *host_screen =
|
|
host_screen_from_window (xev.xmotion.window);
|
|
|
|
ev->type = EPHYR_EV_MOUSE_MOTION;
|
|
ev->data.mouse_motion.x = xev.xmotion.x;
|
|
ev->data.mouse_motion.y = xev.xmotion.y;
|
|
ev->data.mouse_motion.window = xev.xmotion.window;
|
|
ev->data.mouse_motion.screen = (host_screen ? host_screen->mynum : -1);
|
|
}
|
|
return 1;
|
|
|
|
case ButtonPress:
|
|
ev->type = EPHYR_EV_MOUSE_PRESS;
|
|
ev->key_state = xev.xkey.state;
|
|
/*
|
|
* This is a bit hacky. will break for button 5 ( defined as 0x10 )
|
|
* Check KD_BUTTON defines in kdrive.h
|
|
*/
|
|
ev->data.mouse_down.button_num = 1<<(xev.xbutton.button-1);
|
|
return 1;
|
|
|
|
case ButtonRelease:
|
|
ev->type = EPHYR_EV_MOUSE_RELEASE;
|
|
ev->key_state = xev.xkey.state;
|
|
ev->data.mouse_up.button_num = 1<<(xev.xbutton.button-1);
|
|
return 1;
|
|
|
|
case KeyPress:
|
|
{
|
|
ev->type = EPHYR_EV_KEY_PRESS;
|
|
ev->key_state = xev.xkey.state;
|
|
ev->data.key_down.scancode = xev.xkey.keycode;
|
|
return 1;
|
|
}
|
|
case KeyRelease:
|
|
|
|
if ((XKeycodeToKeysym(HostX.dpy,xev.xkey.keycode,0) == XK_Shift_L
|
|
|| XKeycodeToKeysym(HostX.dpy,xev.xkey.keycode,0) == XK_Shift_R)
|
|
&& (xev.xkey.state & ControlMask))
|
|
{
|
|
struct EphyrHostScreen *host_screen =
|
|
host_screen_from_window (xev.xexpose.window);
|
|
|
|
if (grabbed_screen != -1)
|
|
{
|
|
XUngrabKeyboard (HostX.dpy, CurrentTime);
|
|
XUngrabPointer (HostX.dpy, CurrentTime);
|
|
grabbed_screen = -1;
|
|
hostx_set_win_title (host_screen->info,
|
|
"(ctrl+shift grabs mouse and keyboard)");
|
|
}
|
|
else
|
|
{
|
|
/* Attempt grab */
|
|
if (XGrabKeyboard (HostX.dpy, host_screen->win, True,
|
|
GrabModeAsync,
|
|
GrabModeAsync,
|
|
CurrentTime) == 0)
|
|
{
|
|
if (XGrabPointer (HostX.dpy, host_screen->win, True,
|
|
NoEventMask,
|
|
GrabModeAsync,
|
|
GrabModeAsync,
|
|
host_screen->win, None, CurrentTime) == 0)
|
|
{
|
|
grabbed_screen = host_screen->mynum;
|
|
hostx_set_win_title
|
|
(host_screen->info,
|
|
"(ctrl+shift releases mouse and keyboard)");
|
|
}
|
|
else /* Failed pointer grabm ungrab keyboard */
|
|
XUngrabKeyboard (HostX.dpy, CurrentTime);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Still send the release event even if above has happened
|
|
* server will get confused with just an up event.
|
|
* Maybe it would be better to just block shift+ctrls getting to
|
|
* kdrive all togeather.
|
|
*/
|
|
ev->type = EPHYR_EV_KEY_RELEASE;
|
|
ev->key_state = xev.xkey.state;
|
|
ev->data.key_up.scancode = xev.xkey.keycode;
|
|
return 1;
|
|
|
|
default:
|
|
break;
|
|
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void*
|
|
hostx_get_display(void)
|
|
{
|
|
return HostX.dpy ;
|
|
}
|
|
|
|
int
|
|
hostx_get_window (int a_screen_number)
|
|
{
|
|
if (a_screen_number < 0 || a_screen_number >= HostX.n_screens) {
|
|
EPHYR_LOG_ERROR ("bad screen number:%d\n", a_screen_number) ;
|
|
return 0;
|
|
}
|
|
return HostX.screens[a_screen_number].win ;
|
|
}
|
|
|
|
int
|
|
hostx_get_window_attributes (int a_window, EphyrHostWindowAttributes *a_attrs)
|
|
{
|
|
XWindowAttributes attrs ;
|
|
|
|
memset (&attrs, 0, sizeof (attrs)) ;
|
|
|
|
if (!XGetWindowAttributes (hostx_get_display (),
|
|
a_window,
|
|
&attrs)) {
|
|
return FALSE ;
|
|
}
|
|
a_attrs->x = attrs.x ;
|
|
a_attrs->y = attrs.y ;
|
|
a_attrs->width = attrs.width ;
|
|
a_attrs->height = attrs.height ;
|
|
if (attrs.visual)
|
|
a_attrs->visualid = attrs.visual->visualid ;
|
|
return TRUE ;
|
|
}
|
|
|
|
int
|
|
hostx_get_extension_info (const char *a_ext_name,
|
|
int *a_major_opcode,
|
|
int *a_first_event,
|
|
int *a_first_error)
|
|
{
|
|
if (!a_ext_name || !a_major_opcode || !a_first_event || !a_first_error)
|
|
return 0 ;
|
|
if (!XQueryExtension (HostX.dpy,
|
|
a_ext_name,
|
|
a_major_opcode,
|
|
a_first_event,
|
|
a_first_error))
|
|
{
|
|
return 0 ;
|
|
}
|
|
return 1 ;
|
|
}
|
|
|
|
int
|
|
hostx_get_visuals_info (EphyrHostVisualInfo **a_visuals,
|
|
int *a_num_entries)
|
|
{
|
|
Display *dpy=hostx_get_display () ;
|
|
Bool is_ok=False ;
|
|
XVisualInfo templ, *visuals=NULL;
|
|
EphyrHostVisualInfo *host_visuals=NULL ;
|
|
int nb_items=0, i=0;
|
|
|
|
EPHYR_RETURN_VAL_IF_FAIL (a_visuals && a_num_entries && dpy,
|
|
False) ;
|
|
EPHYR_LOG ("enter\n") ;
|
|
memset (&templ, 0, sizeof (templ)) ;
|
|
visuals = XGetVisualInfo (dpy, VisualNoMask, &templ, &nb_items) ;
|
|
if (!visuals) {
|
|
EPHYR_LOG_ERROR ("host does not advertise any visual\n") ;
|
|
goto out ;
|
|
}
|
|
EPHYR_LOG ("host advertises %d visuals\n", nb_items) ;
|
|
host_visuals = calloc (nb_items, sizeof (EphyrHostVisualInfo)) ;
|
|
for (i=0; i<nb_items; i++) {
|
|
host_visuals[i].visualid = visuals[i].visualid ;
|
|
host_visuals[i].screen = visuals[i].screen ;
|
|
host_visuals[i].depth = visuals[i].depth ;
|
|
host_visuals[i].class = visuals[i].class ;
|
|
host_visuals[i].red_mask = visuals[i].red_mask ;
|
|
host_visuals[i].green_mask = visuals[i].green_mask ;
|
|
host_visuals[i].blue_mask = visuals[i].blue_mask ;
|
|
host_visuals[i].colormap_size = visuals[i].colormap_size ;
|
|
host_visuals[i].bits_per_rgb = visuals[i].bits_per_rgb ;
|
|
}
|
|
*a_visuals = host_visuals ;
|
|
*a_num_entries = nb_items;
|
|
host_visuals=NULL;
|
|
|
|
is_ok = TRUE;
|
|
out:
|
|
if (visuals) {
|
|
XFree (visuals) ;
|
|
visuals = NULL;
|
|
}
|
|
if (host_visuals) {
|
|
free (host_visuals) ;
|
|
host_visuals = NULL;
|
|
}
|
|
EPHYR_LOG ("leave\n") ;
|
|
return is_ok ;
|
|
|
|
}
|
|
|
|
int
|
|
hostx_create_window (int a_screen_number,
|
|
EphyrBox *a_geometry,
|
|
int a_visual_id,
|
|
int *a_host_peer /*out parameter*/)
|
|
{
|
|
Bool is_ok=FALSE ;
|
|
Display *dpy=hostx_get_display () ;
|
|
XVisualInfo *visual_info=NULL, visual_info_templ;
|
|
int visual_mask=VisualIDMask ;
|
|
Window win=None ;
|
|
int nb_visuals=0, winmask=0;
|
|
XSetWindowAttributes attrs;
|
|
|
|
EPHYR_RETURN_VAL_IF_FAIL (dpy && a_geometry, FALSE) ;
|
|
|
|
EPHYR_LOG ("enter\n") ;
|
|
|
|
/*get visual*/
|
|
memset (&visual_info, 0, sizeof (visual_info)) ;
|
|
visual_info_templ.visualid = a_visual_id ;
|
|
visual_info = XGetVisualInfo (dpy, visual_mask,
|
|
&visual_info_templ,
|
|
&nb_visuals) ;
|
|
if (!visual_info) {
|
|
EPHYR_LOG_ERROR ("argh, could not find a remote visual with id:%d\n",
|
|
a_visual_id) ;
|
|
goto out ;
|
|
}
|
|
memset (&attrs, 0, sizeof (attrs)) ;
|
|
attrs.colormap = XCreateColormap (dpy,
|
|
RootWindow (dpy,
|
|
visual_info->screen),
|
|
visual_info->visual,
|
|
AllocNone) ;
|
|
attrs.event_mask = ButtonPressMask
|
|
|ButtonReleaseMask
|
|
|PointerMotionMask
|
|
|KeyPressMask
|
|
|KeyReleaseMask
|
|
|ExposureMask;
|
|
winmask = CWColormap|CWEventMask;
|
|
|
|
win = XCreateWindow (dpy, hostx_get_window (a_screen_number),
|
|
a_geometry->x, a_geometry->y,
|
|
a_geometry->width, a_geometry->height, 0,
|
|
visual_info->depth, CopyFromParent,
|
|
visual_info->visual, winmask, &attrs) ;
|
|
if (win == None) {
|
|
EPHYR_LOG_ERROR ("failed to create peer window\n") ;
|
|
goto out ;
|
|
}
|
|
if (HostX.screens[a_screen_number].peer_win == None) {
|
|
HostX.screens[a_screen_number].peer_win = win;
|
|
} else {
|
|
EPHYR_LOG_ERROR ("multiple peer windows created for same screen\n") ;
|
|
}
|
|
XFlush (dpy) ;
|
|
XMapWindow (dpy, win) ;
|
|
*a_host_peer = win ;
|
|
is_ok = TRUE ;
|
|
out:
|
|
EPHYR_LOG ("leave\n") ;
|
|
return is_ok ;
|
|
}
|
|
|
|
int
|
|
hostx_destroy_window (int a_win)
|
|
{
|
|
Display *dpy=hostx_get_display () ;
|
|
|
|
EPHYR_RETURN_VAL_IF_FAIL (dpy, FALSE) ;
|
|
XDestroyWindow (dpy, a_win) ;
|
|
XFlush (dpy) ;
|
|
return TRUE ;
|
|
}
|
|
|
|
int
|
|
hostx_set_window_geometry (int a_win, EphyrBox *a_geo)
|
|
{
|
|
Display *dpy=hostx_get_display ();
|
|
|
|
EPHYR_RETURN_VAL_IF_FAIL (dpy && a_geo, FALSE) ;
|
|
|
|
EPHYR_LOG ("enter. x,y,w,h:(%d,%d,%d,%d)\n",
|
|
a_geo->x, a_geo->y,
|
|
a_geo->width, a_geo->height) ;
|
|
|
|
XMoveWindow (dpy, a_win, a_geo->x, a_geo->y) ;
|
|
XResizeWindow (dpy, a_win, a_geo->width, a_geo->height) ;
|
|
EPHYR_LOG ("leave\n") ;
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
hostx_set_window_bounding_rectangles (int a_window,
|
|
EphyrRect *a_rects,
|
|
int a_num_rects)
|
|
{
|
|
Bool is_ok=FALSE;
|
|
Display *dpy=hostx_get_display () ;
|
|
int i=0 ;
|
|
XRectangle *rects=NULL ;
|
|
|
|
EPHYR_RETURN_VAL_IF_FAIL (dpy && a_rects, FALSE) ;
|
|
|
|
EPHYR_LOG ("enter. num rects:%d\n", a_num_rects) ;
|
|
|
|
rects = calloc (a_num_rects, sizeof (XRectangle)) ;
|
|
for (i=0; i<a_num_rects; i++) {
|
|
rects[i].x = a_rects[i].x1 ;
|
|
rects[i].y = a_rects[i].y1 ;
|
|
rects[i].width = abs (a_rects[i].x2 - a_rects[i].x1);
|
|
rects[i].height = abs (a_rects[i].y2 - a_rects[i].y1) ;
|
|
EPHYR_LOG ("borders clipped to rect[x:%d,y:%d,w:%d,h:%d]\n",
|
|
rects[i].x, rects[i].y,
|
|
rects[i].width, rects[i].height) ;
|
|
}
|
|
/*this aways returns 1*/
|
|
XShapeCombineRectangles (dpy, a_window, ShapeBounding, 0, 0,
|
|
rects, a_num_rects, ShapeSet, YXBanded) ;
|
|
is_ok = TRUE ;
|
|
|
|
if (rects) {
|
|
free (rects) ;
|
|
rects = NULL ;
|
|
}
|
|
EPHYR_LOG ("leave\n") ;
|
|
return is_ok;
|
|
}
|
|
|
|
int
|
|
hostx_set_window_clipping_rectangles (int a_window,
|
|
EphyrRect *a_rects,
|
|
int a_num_rects)
|
|
{
|
|
Bool is_ok=FALSE;
|
|
Display *dpy=hostx_get_display () ;
|
|
int i=0 ;
|
|
XRectangle *rects=NULL ;
|
|
|
|
EPHYR_RETURN_VAL_IF_FAIL (dpy && a_rects, FALSE) ;
|
|
|
|
EPHYR_LOG ("enter. num rects:%d\n", a_num_rects) ;
|
|
|
|
rects = calloc (a_num_rects, sizeof (XRectangle)) ;
|
|
for (i=0; i<a_num_rects; i++) {
|
|
rects[i].x = a_rects[i].x1 ;
|
|
rects[i].y = a_rects[i].y1 ;
|
|
rects[i].width = abs (a_rects[i].x2 - a_rects[i].x1);
|
|
rects[i].height = abs (a_rects[i].y2 - a_rects[i].y1) ;
|
|
EPHYR_LOG ("clipped to rect[x:%d,y:%d,w:%d,h:%d]\n",
|
|
rects[i].x, rects[i].y,
|
|
rects[i].width, rects[i].height) ;
|
|
}
|
|
/*this aways returns 1*/
|
|
XShapeCombineRectangles (dpy, a_window, ShapeClip, 0, 0,
|
|
rects, a_num_rects, ShapeSet, YXBanded) ;
|
|
is_ok = TRUE ;
|
|
|
|
if (rects) {
|
|
free (rects) ;
|
|
rects = NULL ;
|
|
}
|
|
EPHYR_LOG ("leave\n") ;
|
|
return is_ok;
|
|
}
|
|
|
|
int
|
|
hostx_has_xshape (void)
|
|
{
|
|
int event_base=0, error_base=0 ;
|
|
Display *dpy=hostx_get_display () ;
|
|
if (!XShapeQueryExtension (dpy,
|
|
&event_base,
|
|
&error_base)) {
|
|
return FALSE ;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
#ifdef XF86DRI
|
|
typedef struct {
|
|
int is_valid ;
|
|
int local_id ;
|
|
int remote_id ;
|
|
} ResourcePair ;
|
|
|
|
#define RESOURCE_PEERS_SIZE 1024*10
|
|
static ResourcePair resource_peers[RESOURCE_PEERS_SIZE] ;
|
|
|
|
|
|
int
|
|
hostx_allocate_resource_id_peer (int a_local_resource_id,
|
|
int *a_remote_resource_id)
|
|
{
|
|
int i=0 ;
|
|
ResourcePair *peer=NULL ;
|
|
Display *dpy=hostx_get_display ();
|
|
|
|
/*
|
|
* first make sure a resource peer
|
|
* does not exist already for
|
|
* a_local_resource_id
|
|
*/
|
|
for (i=0; i<RESOURCE_PEERS_SIZE; i++) {
|
|
if (resource_peers[i].is_valid
|
|
&& resource_peers[i].local_id == a_local_resource_id) {
|
|
peer = &resource_peers[i] ;
|
|
break ;
|
|
}
|
|
}
|
|
/*
|
|
* find one free peer entry, an feed it with
|
|
*/
|
|
if (!peer) {
|
|
for (i=0; i<RESOURCE_PEERS_SIZE; i++) {
|
|
if (!resource_peers[i].is_valid) {
|
|
peer = &resource_peers[i] ;
|
|
break ;
|
|
}
|
|
}
|
|
if (peer) {
|
|
peer->remote_id = XAllocID (dpy);
|
|
peer->local_id = a_local_resource_id ;
|
|
peer->is_valid = TRUE ;
|
|
}
|
|
}
|
|
if (peer) {
|
|
*a_remote_resource_id = peer->remote_id ;
|
|
return TRUE ;
|
|
}
|
|
return FALSE ;
|
|
}
|
|
|
|
int
|
|
hostx_get_resource_id_peer (int a_local_resource_id,
|
|
int *a_remote_resource_id)
|
|
{
|
|
int i=0 ;
|
|
ResourcePair *peer=NULL ;
|
|
for (i=0; i<RESOURCE_PEERS_SIZE; i++) {
|
|
if (resource_peers[i].is_valid
|
|
&& resource_peers[i].local_id == a_local_resource_id) {
|
|
peer = &resource_peers[i] ;
|
|
break ;
|
|
}
|
|
}
|
|
if (peer) {
|
|
*a_remote_resource_id = peer->remote_id ;
|
|
return TRUE ;
|
|
}
|
|
return FALSE ;
|
|
}
|
|
|
|
int
|
|
hostx_has_dri (void)
|
|
{
|
|
int event_base=0, error_base=0 ;
|
|
Display *dpy=hostx_get_display () ;
|
|
|
|
if (!dpy)
|
|
return FALSE ;
|
|
|
|
if (!XF86DRIQueryExtension (dpy,
|
|
&event_base,
|
|
&error_base)) {
|
|
return FALSE ;
|
|
}
|
|
return TRUE ;
|
|
}
|
|
|
|
int
|
|
hostx_has_glx (void)
|
|
{
|
|
Display *dpy=hostx_get_display () ;
|
|
int event_base=0, error_base=0 ;
|
|
|
|
if (!glXQueryExtension (dpy, &event_base, &error_base)) {
|
|
return FALSE ;
|
|
}
|
|
return TRUE ;
|
|
}
|
|
|
|
#endif /* XF86DRI */
|