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Optimize DEG2RAD a little, plus some whitespace.

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Ragnvald Maartmann-Moe IV 2001-09-10 04:20:27 +00:00
parent 8ca44af043
commit fb7918d4f8
1 changed files with 33 additions and 55 deletions
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88
libs/util/mathlib.c
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@ -44,20 +44,18 @@
#include "QF/qtypes.h"
#include "QF/sys.h"
vec3_t vec3_origin = { 0, 0, 0 };
int nanmask = 255 << 23;
mplane_t frustum[4];
int nanmask = 255 << 23;
mplane_t frustum[4];
vec3_t vec3_origin = { 0, 0, 0 };
/*-----------------------------------------------------------------*/
#define DEG2RAD(a) (a * (M_PI / 180.0))
#define DEG2RAD( a ) ( a * M_PI ) / 180.0F
void
ProjectPointOnPlane (vec3_t dst, const vec3_t p, const vec3_t normal)
{
float d;
vec3_t n;
float inv_denom;
float inv_denom, d;
vec3_t n;
inv_denom = 1.0F / DotProduct (normal, normal);
@ -76,10 +74,9 @@ ProjectPointOnPlane (vec3_t dst, const vec3_t p, const vec3_t normal)
void
PerpendicularVector (vec3_t dst, const vec3_t src)
{
int pos;
int i;
float minelem = 1.0F;
vec3_t tempvec;
int pos, i;
float minelem = 1.0F;
vec3_t tempvec;
/* find the smallest magnitude axially aligned vector */
for (pos = 0, i = 0; i < 3; i++) {
@ -170,8 +167,8 @@ RotatePointAroundVector (vec3_t dst, const vec3_t dir, const vec3_t point,
R_ConcatRotations (tmpmat, im, rot);
for (i = 0; i < 3; i++) {
dst[i] =
rot[i][0] * point[0] + rot[i][1] * point[1] + rot[i][2] * point[2];
dst[i] = rot[i][0] * point[0] + rot[i][1] * point[1] + rot[i][2] *
point[2];
}
}
@ -179,8 +176,6 @@ RotatePointAroundVector (vec3_t dst, const vec3_t dir, const vec3_t point,
# pragma optimize( "", on )
#endif
/*-----------------------------------------------------------------*/
float
anglemod (float a)
{
@ -235,67 +230,51 @@ BoxOnPlaneSide (vec3_t emins, vec3_t emaxs, mplane_t *p)
// general case
switch (p->signbits) {
case 0:
dist1 =
p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] +
dist1 = p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] +
p->normal[2] * emaxs[2];
dist2 =
p->normal[0] * emins[0] + p->normal[1] * emins[1] +
dist2 = p->normal[0] * emins[0] + p->normal[1] * emins[1] +
p->normal[2] * emins[2];
break;
case 1:
dist1 =
p->normal[0] * emins[0] + p->normal[1] * emaxs[1] +
dist1 = p->normal[0] * emins[0] + p->normal[1] * emaxs[1] +
p->normal[2] * emaxs[2];
dist2 =
p->normal[0] * emaxs[0] + p->normal[1] * emins[1] +
dist2 = p->normal[0] * emaxs[0] + p->normal[1] * emins[1] +
p->normal[2] * emins[2];
break;
case 2:
dist1 =
p->normal[0] * emaxs[0] + p->normal[1] * emins[1] +
dist1 = p->normal[0] * emaxs[0] + p->normal[1] * emins[1] +
p->normal[2] * emaxs[2];
dist2 =
p->normal[0] * emins[0] + p->normal[1] * emaxs[1] +
dist2 = p->normal[0] * emins[0] + p->normal[1] * emaxs[1] +
p->normal[2] * emins[2];
break;
case 3:
dist1 =
p->normal[0] * emins[0] + p->normal[1] * emins[1] +
dist1 = p->normal[0] * emins[0] + p->normal[1] * emins[1] +
p->normal[2] * emaxs[2];
dist2 =
p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] +
dist2 = p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] +
p->normal[2] * emins[2];
break;
case 4:
dist1 =
p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] +
dist1 = p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] +
p->normal[2] * emins[2];
dist2 =
p->normal[0] * emins[0] + p->normal[1] * emins[1] +
dist2 = p->normal[0] * emins[0] + p->normal[1] * emins[1] +
p->normal[2] * emaxs[2];
break;
case 5:
dist1 =
p->normal[0] * emins[0] + p->normal[1] * emaxs[1] +
dist1 = p->normal[0] * emins[0] + p->normal[1] * emaxs[1] +
p->normal[2] * emins[2];
dist2 =
p->normal[0] * emaxs[0] + p->normal[1] * emins[1] +
dist2 = p->normal[0] * emaxs[0] + p->normal[1] * emins[1] +
p->normal[2] * emaxs[2];
break;
case 6:
dist1 =
p->normal[0] * emaxs[0] + p->normal[1] * emins[1] +
dist1 = p->normal[0] * emaxs[0] + p->normal[1] * emins[1] +
p->normal[2] * emins[2];
dist2 =
p->normal[0] * emins[0] + p->normal[1] * emaxs[1] +
dist2 = p->normal[0] * emins[0] + p->normal[1] * emaxs[1] +
p->normal[2] * emaxs[2];
break;
case 7:
dist1 =
p->normal[0] * emins[0] + p->normal[1] * emins[1] +
dist1 = p->normal[0] * emins[0] + p->normal[1] * emins[1] +
p->normal[2] * emins[2];
dist2 =
p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] +
dist2 = p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] +
p->normal[2] * emaxs[2];
break;
default:
@ -344,8 +323,7 @@ BoxOnPlaneSide (vec3_t emins, vec3_t emaxs, mplane_t *p)
void
AngleVectors (vec3_t angles, vec3_t forward, vec3_t right, vec3_t up)
{
float angle;
float sr, sp, sy, cr, cp, cy;
float angle, sr, sp, sy, cr, cp, cy;
angle = angles[YAW] * (M_PI * 2 / 360);
sy = sin (angle);
@ -431,8 +409,8 @@ double sqrt (double x);
vec_t
_Length (vec3_t v)
{
int i;
float length;
float length;
int i;
length = 0;
for (i = 0; i < 3; i++)
@ -445,7 +423,7 @@ _Length (vec3_t v)
float
VectorNormalize (vec3_t v)
{
float length, ilength;
float length, ilength;
length = v[0] * v[0] + v[1] * v[1] + v[2] * v[2];
length = sqrt (length); // FIXME
@ -549,8 +527,8 @@ R_ConcatTransforms (float in1[3][4], float in2[3][4], float out[3][4])
void
FloorDivMod (double numer, double denom, int *quotient, int *rem)
{
int q, r;
double x;
double x;
int q, r;
#ifndef PARANOID
if (denom <= 0.0)