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54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
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/*
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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 the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// d_zpoint.c: software driver module for drawing z-buffered points
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#include "quakedef.h"
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#include "d_local.h"
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/*
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=====================
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D_DrawZPoint
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=====================
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*/
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void D_DrawZPoint (void)
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{
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qbyte *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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{
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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 D_ClearDepth(void)
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{
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memset(d_pzbuffer, 0, sizeof(*d_pzbuffer)*vid.width*vid.height);
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}
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