newtree/source/sw_view.c

132 lines
2.9 KiB
C
Raw Normal View History

2000-05-14 07:19:15 +00:00
/*
2000-09-20 04:13:52 +00:00
sw_view.c
2000-05-14 07:19:15 +00:00
2000-05-22 07:46:47 +00:00
player eye positioning
2000-05-14 07:19:15 +00:00
2000-09-20 04:13:52 +00:00
Copyright (C) 1996-1997 Id Software, Inc.
2000-05-14 07:19:15 +00:00
2000-09-20 04:13:52 +00:00
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.
2000-05-14 07:19:15 +00:00
2000-09-20 04:13:52 +00:00
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.
2000-05-14 07:19:15 +00:00
2000-09-20 04:13:52 +00:00
See the GNU General Public License for more details.
2000-05-14 07:19:15 +00:00
2000-09-20 04:13:52 +00:00
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
2000-05-14 07:19:15 +00:00
2000-09-20 04:13:52 +00:00
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
2000-05-14 07:19:15 +00:00
2000-09-20 04:13:52 +00:00
$Id$
2000-05-14 07:19:15 +00:00
*/
2000-05-17 10:03:19 +00:00
#ifdef HAVE_CONFIG_H
# include "config.h"
2000-05-17 10:03:19 +00:00
#endif
#include "host.h"
2000-05-14 07:19:15 +00:00
#include "r_local.h"
extern byte gammatable[256];
2000-05-14 07:19:15 +00:00
void V_CalcPowerupCshift (void);
qboolean V_CheckGamma (void);
2000-05-14 07:19:15 +00:00
/*
=============
V_UpdatePalette
=============
*/
void
V_UpdatePalette (void)
2000-05-14 07:19:15 +00:00
{
int i, j;
qboolean new;
byte *basepal, *newpal;
byte pal[768];
int r, g, b;
qboolean force;
V_CalcPowerupCshift ();
new = false;
for (i = 0; i < NUM_CSHIFTS; i++) {
if (cl.cshifts[i].percent != cl.prev_cshifts[i].percent) {
new = true;
cl.prev_cshifts[i].percent = cl.cshifts[i].percent;
}
for (j = 0; j < 3; j++) {
if (cl.cshifts[i].destcolor[j] != cl.prev_cshifts[i].destcolor[j]) {
new = true;
cl.prev_cshifts[i].destcolor[j] = cl.cshifts[i].destcolor[j];
}
}
}
// drop the damage value
cl.cshifts[CSHIFT_DAMAGE].percent -= host_frametime * 150;
if (cl.cshifts[CSHIFT_DAMAGE].percent <= 0)
cl.cshifts[CSHIFT_DAMAGE].percent = 0;
// drop the bonus value
cl.cshifts[CSHIFT_BONUS].percent -= host_frametime * 100;
if (cl.cshifts[CSHIFT_BONUS].percent <= 0)
cl.cshifts[CSHIFT_BONUS].percent = 0;
force = V_CheckGamma ();
if (!new && !force)
return;
basepal = host_basepal;
newpal = pal;
for (i = 0; i < 256; i++) {
r = basepal[0];
g = basepal[1];
b = basepal[2];
basepal += 3;
for (j = 0; j < NUM_CSHIFTS; j++) {
r +=
(cl.cshifts[j].percent * (cl.cshifts[j].destcolor[0] - r)) >> 8;
g +=
(cl.cshifts[j].percent * (cl.cshifts[j].destcolor[1] - g)) >> 8;
b +=
(cl.cshifts[j].percent * (cl.cshifts[j].destcolor[2] - b)) >> 8;
}
newpal[0] = gammatable[r];
newpal[1] = gammatable[g];
newpal[2] = gammatable[b];
newpal += 3;
}
VID_ShiftPalette (pal);
2000-05-14 07:19:15 +00:00
}
void
BuildGammaTable (float b, float c)
{
int i, inf;
if ((b == 1.0) && (c == 1.0)) {
for (i = 0; i < 256; i++)
gammatable[i] = i;
return;
}
for (i = 0; i < 256; i++) { // weighted average toward the
// median, 127
inf = (i * b); // gamma is brightness now, and
// positive
inf = bound (0, inf, 255);
gammatable[i] = inf + (int) ((127 - inf) * (1 - c));
}
}