/* | |
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 | |
#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_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 (); | |
} | |