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/*
XBlockOut a 3D Tetris
Copyright (C) 1992,1993,1994,1997,2001 Thierry EXCOFFIER
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 1, 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 the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
Contact: Thierry.EXCOFFIER@liris.univ-lyon1.fr
*/
#include "opt.h"
#include "x.h"
#include <X11/keysym.h>
#include <X11/Xutil.h>
#include <stdio.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
void SymCode(Display *d, char *key)
{
int i,j,min,max ;
KeySym *map ;
int nbmod,nb ;
XDisplayKeycodes(d,&min,&max) ;
nb = max-min+1 ;
map = XGetKeyboardMapping(d,min,nb,&nbmod) ;
for(i=0;i<256;i++) key[i] = 0 ;
for(i=0;i<nb;i++)
{
key[i+min] = 0 ;
for(j=0;j<nbmod;j++)
{
if ( map[i*nbmod+j]>= XK_KP_0 && map[i*nbmod+j]<= XK_KP_9 )
key[i+min] = map[i*nbmod+j] - XK_KP_0 + '0' ;
else
switch ( map[i*nbmod+j] )
{
case XK_Left : key[i+min] = '4' ; break ;
case XK_Right: key[i+min] = '6' ; break ;
case XK_Up : key[i+min] = '8' ; break ;
case XK_Down : key[i+min] = '2' ; break ;
}
}
}
}
void initdisp(struct opt *opt, struct x *x)
{
int i ;
char *name ;
if ( opt->displayname[0]!='\0' )
x->display = XOpenDisplay(opt->displayname) ;
if ( x->display==0 )
{
name = getenv("DISPLAY") ;
if ( name==0 )
{
fprintf(stderr,"Xbl is an X11 game\n") ;
fprintf(stderr,"And your DISPLAY variable doesn't exist\n") ;
fprintf(stderr,"Goodbye\n") ;
exit(1) ;
}
STRCPY_SAFE(opt->displayname,name) ;
x->display = XOpenDisplay(opt->displayname) ;
}
if ( x->display==0 )
{
fprintf(stderr,"Cannot open display\n");
exit(1) ;
}
x->screen = DefaultScreen( x->display ) ;
i = strlen(opt->displayname) ;
if ( opt->displayname[i-2]=='.' )
{
x->screen = opt->displayname[i-1] - '0' ;
}
if ( x->screen>=ScreenCount(x->display) )
{
/* This case is impossible XOpenDisplay change the string */
fprintf(stderr,"You give an invalide screen number\n") ;
exit(1) ;
}
x->root = RootWindow( x->display,x->screen ) ;
x->depth = DefaultDepth(x->display,x->screen);
}
void initdisp2(struct opt *opt, struct x *x)
{
XVisualInfo viproto; /* fill in for getting info */
XVisualInfo *vip; /* retured info */
int nbv ;
int i ;
x->visual = DefaultVisual(x->display,x->screen) ;
x->colormap = DefaultColormap( x->display, x->screen) ;
if ( opt->verbose )
{
fprintf(stderr,"DEFAULT Colormap %ld visual %p\n",x->colormap, x->visual) ;
}
/*-----------------------------------------*/
/* Find the PseudoColor with maximum depth */
/* It's obviously not a good method */
/*-----------------------------------------*/
if ( opt->visual )
{
int new_visual ;
viproto.screen = x->screen ;
viproto.class = PseudoColor ;
vip = XGetVisualInfo (x->display, VisualScreenMask|VisualClassMask, &viproto, &nbv);
if ( opt->verbose )
fprintf(stderr,"Number of Visual --------------> %d\n",nbv) ;
new_visual = 0 ;
for(i=0;i<nbv;i++)
{
if ( opt->verbose )
fprintf(stderr,"PSEUDOCOLOR %d entries\n",
vip[i].visual->map_entries) ;
if ( x->visual->class != PseudoColor ||
vip[i].visual->map_entries > x->visual->map_entries
)
{
if ( opt->verbose )
{
fprintf(stderr,"I USE IT VisualID %ld!!!!!\n",
vip[i].visual->visualid) ;
}
x->visual = vip[i].visual ;
new_visual = 1 ;
if ( x->visual->map_entries>=128 ) break ; /* No more useful */
}
}
if ( new_visual )
{
x->colormap = XCreateColormap( x->display, x->root, x->visual, AllocNone) ;
if ( opt->verbose )
{
fprintf(stderr,"Colormap %ld created\n",x->colormap) ;
}
}
}
/*-----------------------------------------*/
/*-----------------------------------------*/
x->map_entries = x->visual->map_entries ;
if ( x->map_entries&1 ) x->map_entries = (x->map_entries+1)/2 ;
x->white_pixel = XWhitePixel(x->display,x->screen) ;
x->black_pixel = XBlackPixel(x->display,x->screen) ;
if ( opt->buffering==-1)
{
if (x->visual->class==PseudoColor || x->visual->class==GrayScale)
{
if ( opt->use_bw )
{
if ( x->map_entries>=4 )
if ( x->map_entries>=8 )
opt->buffering=3 ;
else opt->buffering=1 ;
else opt->buffering=2 ;
}
else {
if ( x->map_entries>=16 )
if ( x->map_entries>=32 )
opt->buffering=3 ;
else opt->buffering=1 ;
else opt->buffering=2 ;
}
}
else opt->buffering = 2 ;
if ( opt->verbose )
fprintf(stderr,"I choose buffering=%d\n",opt->buffering) ;
}
SymCode(x->display,x->codes) ;
}
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