mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-10 15:22:04 +00:00
[simd] Add qexpf function
This commit is contained in:
parent
590f0f18bc
commit
e6bc5e3e11
1 changed files with 22 additions and 0 deletions
|
@ -29,6 +29,7 @@
|
|||
#define __QF_simd_vec4f_h
|
||||
|
||||
#include <immintrin.h>
|
||||
#include <math.h>
|
||||
|
||||
#include "QF/simd/types.h"
|
||||
|
||||
|
@ -92,6 +93,7 @@ GNU89INLINE inline vec4f_t qrotf (vec4f_t a, vec4f_t b) __attribute__((const));
|
|||
* That is, [-x, -y, -z, w].
|
||||
*/
|
||||
GNU89INLINE inline vec4f_t qconjf (vec4f_t q) __attribute__((const));
|
||||
GNU89INLINE inline vec4f_t qexpf (vec4f_t q) __attribute__((const));
|
||||
GNU89INLINE inline vec4f_t loadvec3f (const float *v3) __attribute__((pure));
|
||||
GNU89INLINE inline void storevec3f (float *v3, vec4f_t v4);
|
||||
GNU89INLINE inline vec4f_t normalf (vec4f_t v) __attribute__((pure));
|
||||
|
@ -267,6 +269,26 @@ qconjf (vec4f_t q)
|
|||
return _mm_xor_ps (q, (__m128) neg);
|
||||
}
|
||||
|
||||
#ifndef IMPLEMENT_VEC4F_Funcs
|
||||
GNU89INLINE inline
|
||||
#else
|
||||
VISIBLE
|
||||
#endif
|
||||
vec4f_t
|
||||
qexpf (vec4f_t q)
|
||||
{
|
||||
vec4f_t th = magnitude3f (q);
|
||||
float r = expf (q[3]);
|
||||
if (!th[0]) {
|
||||
return (vec4f_t) { 0, 0, 0, r };
|
||||
}
|
||||
float c = cosf (th[0]);
|
||||
float s = sinf (th[0]);
|
||||
vec4f_t n = (r * s) * (q / th);
|
||||
n[3] = r * c;
|
||||
return n;
|
||||
}
|
||||
|
||||
#ifndef IMPLEMENT_VEC4F_Funcs
|
||||
GNU89INLINE inline
|
||||
#else
|
||||
|
|
Loading…
Reference in a new issue