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https://git.code.sf.net/p/quake/quakeforge
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6377734e32
I got tired of having to maintain two separate software renderers, but didn't want to just nuke sw32, so its core changes are merged into sw. Alias model rendering is broken, but I know exactly what's wrong and how to fix it, just need to take care due to asm.
84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
/*
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d_zpoint.c
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software driver module for drawing z-buffered points
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "d_local.h"
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#include "r_internal.h"
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#include "vid_internal.h"
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#include "vid_sw.h"
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void
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draw_z_point_8 (void)
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{
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byte *pdest;
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short *pz;
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int izi;
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pz = d_pzbuffer + (d_zwidth * r_zpointdesc.v) + r_zpointdesc.u;
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pdest = d_viewbuffer + d_scantable[r_zpointdesc.v] + r_zpointdesc.u;
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izi = (int) (r_zpointdesc.zi * 0x8000);
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if (*pz <= izi) {
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*pz = izi;
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*pdest = r_zpointdesc.color;
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}
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}
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void
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draw_z_point_16 (void)
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{
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short *pz;
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int izi;
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pz = d_pzbuffer + (d_zwidth * r_zpointdesc.v) + r_zpointdesc.u;
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izi = (int) (r_zpointdesc.zi * 0x8000);
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if (*pz <= izi) {
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*pz = izi;
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((short *) d_viewbuffer) [d_scantable[r_zpointdesc.v]
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+ r_zpointdesc.u] = d_8to16table[r_zpointdesc.color];
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}
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}
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void
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draw_z_point_32 (void)
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{
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short *pz;
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int izi;
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pz = d_pzbuffer + (d_zwidth * r_zpointdesc.v) + r_zpointdesc.u;
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izi = (int) (r_zpointdesc.zi * 0x8000);
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if (*pz <= izi) {
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*pz = izi;
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((int *) d_viewbuffer) [d_scantable[r_zpointdesc.v]
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+ r_zpointdesc.u] = d_8to24table[r_zpointdesc.color];
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}
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}
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