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Initial checkin of software rendering bits and bobs.

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git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@20 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Spoike 2004-08-23 03:03:41 +00:00
parent 3a7c75319a
commit fffb8897b9
55 changed files with 38138 additions and 0 deletions
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115
engine/sw/d_modech.c Normal file
View file

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/*
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 the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// d_modech.c: called when mode has just changed
//the id made assembler cannot cope with the changes made to the triangle data type.
#ifndef NOASM
#define NOASM
#endif
#include "quakedef.h"
#include "d_local.h"
int d_vrectx, d_vrecty, d_vrectright_particle, d_vrectbottom_particle;
int d_y_aspect_shift, d_pix_min, d_pix_max, d_pix_shift;
int d_scantable[MAXHEIGHT];
short *zspantable[MAXHEIGHT];
/*
================
D_Patch
================
*/
void D_Patch (void)
{
#if id386
static qboolean protectset8 = false;
if (!protectset8)
{
Sys_MakeCodeWriteable ((int)D_PolysetAff8Start,
(int)D_PolysetAff8End - (int)D_PolysetAff8Start);
protectset8 = true;
}
#endif // id386
}
/*
================
D_ViewChanged
================
*/
void D_ViewChanged (void)
{
int rowbytes;
if (r_dowarp)
rowbytes = WARP_WIDTH;
else
rowbytes = vid.rowbytes;
scale_for_mip = xscale;
if (yscale > xscale)
scale_for_mip = yscale;
d_zrowbytes = vid.width * 2;
d_zwidth = vid.width;
d_pix_min = r_refdef.vrect.width / 320;
if (d_pix_min < 1)
d_pix_min = 1;
d_pix_max = (int)((float)r_refdef.vrect.width / (320.0 / 4.0) + 0.5);
d_pix_max*=2;
d_pix_shift = 8 - (int)((float)r_refdef.vrect.width / 320.0 + 0.5);
if (d_pix_max < 1)
d_pix_max = 1;
if (pixelAspect > 1.4)
d_y_aspect_shift = 1;
else
d_y_aspect_shift = 0;
d_vrectx = r_refdef.vrect.x;
d_vrecty = r_refdef.vrect.y;
d_vrectright_particle = r_refdef.vrectright - d_pix_max;
d_vrectbottom_particle =
r_refdef.vrectbottom - (d_pix_max << d_y_aspect_shift);
{
int i;
for (i=0 ; i<vid.height; i++)
{
d_scantable[i] = i*rowbytes;
zspantable[i] = d_pzbuffer + i*d_zwidth;
}
}
D_Patch ();
D_FlushCaches();
}