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diff noise reduction

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This commit is contained in:
Bill Currie 2001-05-14 06:48:59 +00:00
parent a2ac0b5c0e
commit 9064530d1d
2 changed files with 40 additions and 36 deletions
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68
nq/source/gl_view.c
View file

@ -1,4 +1,3 @@
/*
gl_view.c
@ -30,12 +29,14 @@
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <stdio.h>
#include "QF/compat.h"
@ -43,25 +44,22 @@
#include "glquake.h"
#include "view.h"
extern double host_frametime;
extern double host_frametime;
extern byte gammatable[256];
extern byte gammatable[256];
extern qboolean V_CheckGamma (void);
extern qboolean V_CheckGamma (void);
extern void V_CalcIntermissionRefdef (void);
extern void V_CalcRefdef (void);
extern void V_CalcIntermissionRefdef (void);
extern void V_CalcRefdef (void);
extern cvar_t *crosshair;
extern cvar_t *gl_cshiftpercent;
extern cvar_t *cl_cshift_powerup;
extern cvar_t *cl_cshift_powerup;
extern cvar_t *scr_ofsx;
extern cvar_t *scr_ofsy;
extern cvar_t *scr_ofsz;
byte ramps[3][256];
float v_blend[4]; // rgba 0.0 - 1.0
byte ramps[3][256];
float v_blend[4];
/*
@ -74,7 +72,7 @@ void
V_CalcBlend (void)
{
float r = 0, g = 0, b = 0, a = 0;
float a2, a3;
float a2, a3;
int i;
for (i = 0; i < NUM_CSHIFTS; i++) {
@ -96,21 +94,21 @@ V_CalcBlend (void)
}
if ((a2 = 1 - bound (0.0, contrast->value, 1.0)) < 0.999) { // add contrast
r += (128 - r) * a2;
g += (128 - g) * a2;
b += (128 - b) * a2;
a3 = (1.0 - a) * (1.0 - a2);
a = 1.0 - a3;
}
// LordHavoc: saturate color
if (a) {
a2 = 1.0 / a;
r *= a2;
g *= a2;
b *= a2;
}
r += (128 - r) * a2;
g += (128 - g) * a2;
b += (128 - b) * a2;
a3 = (1.0 - a) * (1.0 - a2);
a = 1.0 - a3;
}
// LordHavoc: saturate color
if (a) {
a2 = 1.0 / a;
r *= a2;
g *= a2;
b *= a2;
}
v_blend[0] = min (r, 255.0) / 255.0;
v_blend[1] = min (g, 255.0) / 255.0;

8
qw/source/gl_view.c
View file

@ -63,7 +63,7 @@ float v_blend[4];
V_CalcBlend
LordHavoc made this a real, true alpha blend. Cleaned it up
a bit, but otherwise this is his code. --KB
a bit, but otherwise this is his code. --KB
*/
void
V_CalcBlend (void)
@ -155,6 +155,12 @@ V_CalcPowerupCshift (void)
}
/*
V_UpdatePalette
In software, this function (duh) updates the palette. In GL, all it does is
set up some values for shifting the screen color in a particular direction.
*/
void
V_UpdatePalette (void)
{