1 /*
2 d_modech.c
3
4 called when mode has just changed
5
6 Copyright (C) 1996-1997 Id Software, Inc.
7
8 This program is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License
10 as published by the Free Software Foundation; either version 2
11 of the License, or (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16
17 See the GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to:
21
22 Free Software Foundation, Inc.
23 59 Temple Place - Suite 330
24 Boston, MA 02111-1307, USA
25
26 */
27 #ifdef HAVE_CONFIG_H
28 # include "config.h"
29 #endif
30
31 #define NH_DEFINE
32 #include "namehack.h"
33
34 #include "QF/render.h"
35
36 #include "d_local.h"
37 #include "r_internal.h"
38
39 int sw32_d_vrectx, sw32_d_vrecty, sw32_d_vrectright_particle, sw32_d_vrectbottom_particle;
40
41 int sw32_d_y_aspect_shift, sw32_d_pix_min, sw32_d_pix_max, sw32_d_pix_shift;
42
43 int sw32_d_scantable[MAXHEIGHT];
44 short *sw32_zspantable[MAXHEIGHT];
45
46
47 static void
D_Patch(void)48 D_Patch (void)
49 {
50 }
51
52 void
sw32_D_ViewChanged(void)53 sw32_D_ViewChanged (void)
54 {
55 int rowpixels;
56
57 if (sw32_r_dowarp)
58 rowpixels = WARP_WIDTH;
59 else
60 rowpixels = vid.rowbytes / sw32_r_pixbytes;
61
62 sw32_scale_for_mip = sw32_xscale;
63 if (sw32_yscale > sw32_xscale)
64 sw32_scale_for_mip = sw32_yscale;
65
66 sw32_d_zrowbytes = vid.width * 2;
67 sw32_d_zwidth = vid.width;
68
69 sw32_d_pix_min = r_refdef.vrect.width / 320;
70 if (sw32_d_pix_min < 1)
71 sw32_d_pix_min = 1;
72
73 sw32_d_pix_max = (int) ((float) r_refdef.vrect.width / (320.0 / 4.0) + 0.5);
74 sw32_d_pix_shift = 8 - (int) ((float) r_refdef.vrect.width / 320.0 + 0.5);
75 if (sw32_d_pix_max < 1)
76 sw32_d_pix_max = 1;
77
78 if (sw32_pixelAspect > 1.4)
79 sw32_d_y_aspect_shift = 1;
80 else
81 sw32_d_y_aspect_shift = 0;
82
83 sw32_d_vrectx = r_refdef.vrect.x;
84 sw32_d_vrecty = r_refdef.vrect.y;
85 sw32_d_vrectright_particle = r_refdef.vrectright - sw32_d_pix_max;
86 sw32_d_vrectbottom_particle =
87 r_refdef.vrectbottom - (sw32_d_pix_max << sw32_d_y_aspect_shift);
88
89 {
90 int i;
91
92 for (i = 0; i < vid.height; i++) {
93 sw32_d_scantable[i] = i * rowpixels;
94 sw32_zspantable[i] = sw32_d_pzbuffer + i * sw32_d_zwidth;
95 }
96 }
97
98 D_Patch ();
99 }
100