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quakeforge/nq/source/context_x11.c
Bill Currie f78b973978 move the api headers into include/QF and clean up (most of) the resulting mess. 
target specific files that I don't build won't compile yet. just put QF/
infront of the offending headers.

Also move ver_check into libqfutils
2001-03-27 20:33:07 +00:00

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/*
context_x11.c
general x11 context layer
Copyright (C) 1996-1997 Id Software, Inc.
Copyright (C) 2000 Zephaniah E. Hull <warp@whitestar.soark.net>
Copyright (C) 1999,2000 contributors of the QuakeForge project
Please see the file "AUTHORS" for a list of contributors
This program 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 program 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 program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
$Id$
*/
#include <config.h>
#include <ctype.h>
#include <sys/time.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/keysym.h>
#include <X11/extensions/XShm.h>
#include <errno.h>
#include <limits.h>
#include <sys/poll.h>
#ifdef HAVE_VIDMODE
# include <X11/extensions/xf86vmode.h>
#endif
#include "context_x11.h"
#include "dga_check.h"
#include "QF/va.h"
#include "QF/qargs.h"
#include "QF/qtypes.h"
#include "vid.h"
#include "QF/sys.h"
#include "QF/console.h"
#include "QF/cvar.h"
#include "input.h"
static void (*event_handlers[LASTEvent]) (XEvent *);
qboolean oktodraw = false;
int x_shmeventtype;
static int x_disp_ref_count = 0;
Display *x_disp = NULL;
int x_screen;
Window x_root = None;
XVisualInfo *x_visinfo;
Visual *x_vis;
Window x_win;
Cursor nullcursor = None;
static Atom aWMDelete = 0;
#define X_MASK (VisibilityChangeMask | StructureNotifyMask | ExposureMask)
#ifdef HAVE_VIDMODE
static XF86VidModeModeInfo **vidmodes;
static int nummodes;
#endif
static int hasvidmode = 0;
cvar_t *vid_fullscreen;
static int xss_timeout;
static int xss_interval;
static int xss_blanking;
static int xss_exposures;
qboolean
x11_add_event (int event, void (*event_handler) (XEvent *))
{
if (event >= LASTEvent) {
printf ("event: %d, LASTEvent: %d\n", event, LASTEvent);
return false;
}
if (event_handlers[event] != NULL)
return false;
event_handlers[event] = event_handler;
return true;
}
qboolean
x11_del_event (int event, void (*event_handler) (XEvent *))
{
if (event >= LASTEvent)
return false;
if (event_handlers[event] != event_handler)
return false;
event_handlers[event] = NULL;
return true;
}
void
x11_process_event (void)
{
XEvent x_event;
XNextEvent (x_disp, &x_event);
if (x_event.type >= LASTEvent) {
// FIXME: KLUGE!!!!!!
if (x_event.type == x_shmeventtype)
oktodraw = 1;
return;
}
if (event_handlers[x_event.type])
event_handlers[x_event.type] (&x_event);
}
void
x11_process_events (void)
{
/* Get events from X server. */
while (XPending (x_disp)) {
x11_process_event ();
}
}
// ========================================================================
// Tragic death handler
// ========================================================================
static void
TragicDeath (int sig)
{
printf ("Received signal %d, exiting...\n", sig);
Sys_Quit ();
exit (sig);
// XCloseDisplay(x_disp);
// VID_Shutdown();
// Sys_Error("This death brought to you by the number %d\n", signal_num);
}
void
x11_open_display (void)
{
if (!x_disp) {
x_disp = XOpenDisplay (NULL);
if (!x_disp) {
Sys_Error ("x11_open_display: Could not open display [%s]\n",
XDisplayName (NULL));
}
x_screen = DefaultScreen (x_disp);
x_root = RootWindow (x_disp, x_screen);
// catch signals
signal (SIGHUP, TragicDeath);
signal (SIGINT, TragicDeath);
signal (SIGQUIT, TragicDeath);
signal (SIGILL, TragicDeath);
signal (SIGTRAP, TragicDeath);
signal (SIGIOT, TragicDeath);
signal (SIGBUS, TragicDeath);
/* signal(SIGFPE, TragicDeath); */
signal (SIGSEGV, TragicDeath);
signal (SIGTERM, TragicDeath);
// for debugging only
XSynchronize (x_disp, True);
x_disp_ref_count = 1;
} else {
x_disp_ref_count++;
}
}
void
x11_close_display (void)
{
if (nullcursor != None) {
XFreeCursor (x_disp, nullcursor);
nullcursor = None;
}
if (!--x_disp_ref_count) {
XCloseDisplay (x_disp);
x_disp = 0;
}
}
/*
x11_create_null_cursor
Create an empty cursor
*/
void
x11_create_null_cursor (void)
{
Pixmap cursormask;
XGCValues xgc;
GC gc;
XColor dummycolour;
if (nullcursor != None)
return;
cursormask = XCreatePixmap (x_disp, x_root, 1, 1, 1 /* depth */ );
xgc.function = GXclear;
gc = XCreateGC (x_disp, cursormask, GCFunction, &xgc);
XFillRectangle (x_disp, cursormask, gc, 0, 0, 1, 1);
dummycolour.pixel = 0;
dummycolour.red = 0;
dummycolour.flags = 04;
nullcursor = XCreatePixmapCursor (x_disp, cursormask, cursormask,
&dummycolour, &dummycolour, 0, 0);
XFreePixmap (x_disp, cursormask);
XFreeGC (x_disp, gc);
XDefineCursor (x_disp, x_win, nullcursor);
}
void
x11_set_vidmode (int width, int height)
{
int i;
int best_mode = 0, best_x = INT_MAX, best_y = INT_MAX;
XGetScreenSaver (x_disp, &xss_timeout, &xss_interval, &xss_blanking,
&xss_exposures);
XSetScreenSaver (x_disp, 0, xss_interval, xss_blanking, xss_exposures);
#ifdef XMESA
const char *str = getenv ("MESA_GLX_FX");
if (str != NULL && *str != 'd') {
if (tolower (*str) == 'w') {
Cvar_Set (vid_fullscreen, "0");
} else {
Cvar_Set (vid_fullscreen, "1");
}
}
#endif
#ifdef HAVE_VIDMODE
if (!(hasvidmode = VID_CheckVMode (x_disp, NULL, NULL))) {
Cvar_Set (vid_fullscreen, "0");
return;
}
XF86VidModeGetAllModeLines (x_disp, x_screen, &nummodes, &vidmodes);
if (vid_fullscreen->int_val) {
for (i = 0; i < nummodes; i++) {
if ((best_x > vidmodes[i]->hdisplay) ||
(best_y > vidmodes[i]->vdisplay)) {
if ((vidmodes[i]->hdisplay >= width) &&
(vidmodes[i]->vdisplay >= height)) {
best_mode = i;
best_x = vidmodes[i]->hdisplay;
best_y = vidmodes[i]->vdisplay;
}
}
printf ("%dx%d\n", vidmodes[i]->hdisplay, vidmodes[i]->vdisplay);
}
XF86VidModeSwitchToMode (x_disp, x_screen, vidmodes[best_mode]);
x11_force_view_port ();
}
#endif
}
void
x11_Init_Cvars ()
{
vid_fullscreen = Cvar_Get ("vid_fullscreen", "0", CVAR_ROM,
"Toggles fullscreen game mode");
}
void
x11_create_window (int width, int height)
{
XSetWindowAttributes attr;
XClassHint *ClassHint;
XSizeHints *SizeHints;
char *resname;
unsigned long mask;
/* window attributes */
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap (x_disp, x_root, x_vis, AllocNone);
attr.event_mask = X_MASK;
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
if (hasvidmode && vid_fullscreen->int_val) {
attr.override_redirect = 1;
mask |= CWOverrideRedirect;
}
x_win = XCreateWindow (x_disp, x_root, 0, 0, width, height,
0, x_visinfo->depth, InputOutput,
x_vis, mask, &attr);
// Set window size hints
SizeHints = XAllocSizeHints ();
if (SizeHints) {
SizeHints->flags = (PMinSize | PMaxSize);
SizeHints->min_width = width;
SizeHints->min_height = height;
SizeHints->max_width = width;
SizeHints->max_height = height;
XSetWMNormalHints (x_disp, x_win, SizeHints);
XFree (SizeHints);
}
// Set window title
x11_set_caption (va ("%s %s", PROGRAM, VERSION));
// Set icon name
XSetIconName (x_disp, x_win, PROGRAM);
// Set window class
ClassHint = XAllocClassHint ();
if (ClassHint) {
resname = strrchr (com_argv[0], '/');
ClassHint->res_name = (resname ? resname + 1 : resname);
ClassHint->res_class = PROGRAM;
XSetClassHint (x_disp, x_win, ClassHint);
XFree (ClassHint);
}
// Make window respond to Delete events
aWMDelete = XInternAtom (x_disp, "WM_DELETE_WINDOW", False);
XSetWMProtocols (x_disp, x_win, &aWMDelete, 1);
if (vid_fullscreen->int_val) {
XMoveWindow (x_disp, x_win, 0, 0);
XWarpPointer (x_disp, None, x_win, 0, 0, 0, 0,
vid.width + 2, vid.height + 2);
x11_force_view_port ();
}
XMapWindow (x_disp, x_win);
XRaiseWindow (x_disp, x_win);
}
void
x11_restore_vidmode (void)
{
XSetScreenSaver (x_disp, xss_timeout, xss_interval, xss_blanking,
xss_exposures);
#ifdef HAVE_VIDMODE
if (hasvidmode) {
XF86VidModeSwitchToMode (x_disp, x_screen, vidmodes[0]);
XFree (vidmodes);
}
#endif
}
void
x11_grab_keyboard (void)
{
#ifdef HAVE_VIDMODE
if (hasvidmode && vid_fullscreen->int_val) {
XGrabKeyboard (x_disp, x_win, 1, GrabModeAsync, GrabModeAsync,
CurrentTime);
}
#endif
}
void
x11_set_caption (char *text)
{
if (x_disp && x_win && text)
XStoreName (x_disp, x_win, text);
}
void
x11_force_view_port (void)
{
#ifdef HAVE_VIDMODE
int x, y;
if (vid_fullscreen->int_val) {
do {
XF86VidModeSetViewPort (x_disp, x_screen, 0, 0);
poll (0, 0, 50);
XF86VidModeGetViewPort (x_disp, x_screen, &x, &y);
} while (x || y);
}
#endif
}
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