mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-11 07:42:18 +00:00
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
/*
|
|
d_zpoint.c
|
|
|
|
software driver module for drawing z-buffered points
|
|
|
|
Copyright (C) 1996-1997 Id Software, Inc.
|
|
|
|
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
|
|
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
static __attribute__ ((used)) const char rcsid[] =
|
|
"$Id$";
|
|
|
|
#include "QF/sys.h"
|
|
|
|
#include "d_local.h"
|
|
|
|
|
|
void
|
|
D_DrawZPoint (void)
|
|
{
|
|
short *pz;
|
|
int izi;
|
|
|
|
pz = d_pzbuffer + (d_zwidth * r_zpointdesc.v) + r_zpointdesc.u;
|
|
izi = (int) (r_zpointdesc.zi * 0x8000);
|
|
|
|
if (*pz <= izi) {
|
|
*pz = izi;
|
|
switch(r_pixbytes)
|
|
{
|
|
case 1:
|
|
((byte *) d_viewbuffer) [d_scantable[r_zpointdesc.v] +
|
|
r_zpointdesc.u] = r_zpointdesc.color;
|
|
break;
|
|
case 2:
|
|
((short *) d_viewbuffer) [d_scantable[r_zpointdesc.v] +
|
|
r_zpointdesc.u] =
|
|
d_8to16table[r_zpointdesc.color];
|
|
break;
|
|
case 4:
|
|
((int *) d_viewbuffer) [d_scantable[r_zpointdesc.v] +
|
|
r_zpointdesc.u] =
|
|
d_8to24table[r_zpointdesc.color];
|
|
break;
|
|
default:
|
|
Sys_Error("D_DrawZPoint: unsupported r_pixbytes %i", r_pixbytes);
|
|
}
|
|
}
|
|
}
|