mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-12-03 09:32:31 +00:00
56344e478d
No need for compiler flags for 64-bit arm, and the few intrinsics that are actually needed are in a different header.
190 lines
3.7 KiB
C
190 lines
3.7 KiB
C
/*
|
|
QF/simd/vec2f.h
|
|
|
|
Vector functions for vec2f_t (ie, float precision)
|
|
|
|
Copyright (C) 2020 Bill Currie <bill@taniwha.org>
|
|
Copyright (C) 2022 Bill Currie <bill@taniwha.org>
|
|
|
|
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.
|
|
|
|
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.
|
|
|
|
See the GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
*/
|
|
|
|
#ifndef __QF_simd_vec2f_h
|
|
#define __QF_simd_vec2f_h
|
|
|
|
#ifdef __aarch64__
|
|
#include <arm_neon.h>
|
|
#else
|
|
#include <immintrin.h>
|
|
#endif
|
|
#include <math.h>
|
|
|
|
#include "QF/simd/types.h"
|
|
|
|
GNU89INLINE inline vec2f_t vabs2f (vec2f_t v) __attribute__((const));
|
|
GNU89INLINE inline vec2f_t vsqrt2f (vec2f_t v) __attribute__((const));
|
|
GNU89INLINE inline vec2f_t vceil2f (vec2f_t v) __attribute__((const));
|
|
GNU89INLINE inline vec2f_t vfloor2f (vec2f_t v) __attribute__((const));
|
|
GNU89INLINE inline vec2f_t vtrunc2f (vec2f_t v) __attribute__((const));
|
|
/** 2D vector dot product.
|
|
*/
|
|
GNU89INLINE inline vec2f_t dot2f (vec2f_t a, vec2f_t b) __attribute__((const));
|
|
GNU89INLINE inline vec2f_t cmulf (vec2f_t a, vec2f_t b) __attribute__((const));
|
|
GNU89INLINE inline vec2f_t normal2f (vec2f_t v) __attribute__((pure));
|
|
GNU89INLINE inline vec2f_t magnitude2f (vec2f_t v) __attribute__((pure));
|
|
|
|
#ifndef IMPLEMENT_VEC2F_Funcs
|
|
GNU89INLINE inline
|
|
#else
|
|
VISIBLE
|
|
#endif
|
|
vec2f_t
|
|
vabs2f (vec2f_t v)
|
|
{
|
|
const uint32_t nan = ~0u >> 1;
|
|
const vec2i_t abs = { nan, nan };
|
|
return (vec2f_t) ((vec2i_t) v & abs);
|
|
}
|
|
|
|
#ifndef IMPLEMENT_VEC2F_Funcs
|
|
GNU89INLINE inline
|
|
#else
|
|
VISIBLE
|
|
#endif
|
|
vec2f_t
|
|
vsqrt2f (vec2f_t v)
|
|
{
|
|
#ifdef __aarch64__
|
|
return vsqrt_f32 (v);
|
|
#else
|
|
vec4f_t t = { v[0], v[1], 0, 0 };
|
|
t = _mm_sqrt_ps (t);
|
|
return (vec2f_t) { t[0], t[1] };
|
|
#endif
|
|
}
|
|
|
|
#ifndef IMPLEMENT_VEC2F_Funcs
|
|
GNU89INLINE inline
|
|
#else
|
|
VISIBLE
|
|
#endif
|
|
vec2f_t
|
|
vceil2f (vec2f_t v)
|
|
{
|
|
#ifndef __SSE4_1__
|
|
return (vec2f_t) {
|
|
ceilf (v[0]),
|
|
ceilf (v[1]),
|
|
};
|
|
#else
|
|
vec4f_t t = { v[0], v[1], 0, 0 };
|
|
t = _mm_ceil_ps (t);
|
|
return (vec2f_t) { t[0], t[1] };
|
|
#endif
|
|
}
|
|
|
|
#ifndef IMPLEMENT_VEC2F_Funcs
|
|
GNU89INLINE inline
|
|
#else
|
|
VISIBLE
|
|
#endif
|
|
vec2f_t
|
|
vfloor2f (vec2f_t v)
|
|
{
|
|
#ifndef __SSE4_1__
|
|
return (vec2f_t) {
|
|
floorf (v[0]),
|
|
floorf (v[1]),
|
|
};
|
|
#else
|
|
vec4f_t t = { v[0], v[1], 0, 0 };
|
|
t = _mm_floor_ps (t);
|
|
return (vec2f_t) { t[0], t[1] };
|
|
#endif
|
|
}
|
|
|
|
#ifndef IMPLEMENT_VEC2F_Funcs
|
|
GNU89INLINE inline
|
|
#else
|
|
VISIBLE
|
|
#endif
|
|
vec2f_t
|
|
vtrunc2f (vec2f_t v)
|
|
{
|
|
#ifndef __SSE4_1__
|
|
return (vec2f_t) {
|
|
truncf (v[0]),
|
|
truncf (v[1]),
|
|
};
|
|
#else
|
|
vec4f_t t = { v[0], v[1], 0, 0 };
|
|
t = _mm_round_ps (t, _MM_FROUND_TRUNC);
|
|
return (vec2f_t) { t[0], t[1] };
|
|
#endif
|
|
}
|
|
|
|
#ifndef IMPLEMENT_VEC2F_Funcs
|
|
GNU89INLINE inline
|
|
#else
|
|
VISIBLE
|
|
#endif
|
|
vec2f_t
|
|
dot2f (vec2f_t a, vec2f_t b)
|
|
{
|
|
vec2f_t c = a * b;
|
|
return (vec2f_t) { c[0] + c[1], c[0] + c[1] };
|
|
}
|
|
|
|
#ifndef IMPLEMENT_VEC2F_Funcs
|
|
GNU89INLINE inline
|
|
#else
|
|
VISIBLE
|
|
#endif
|
|
vec2f_t
|
|
cmulf (vec2f_t a, vec2f_t b)
|
|
{
|
|
vec2f_t c1 = a * b[0];
|
|
vec2f_t c2 = a * b[1];
|
|
return (vec2f_t) { c1[0] - c2[1], c1[1] + c2[0] };
|
|
}
|
|
|
|
#ifndef IMPLEMENT_VEC2F_Funcs
|
|
GNU89INLINE inline
|
|
#else
|
|
VISIBLE
|
|
#endif
|
|
vec2f_t
|
|
normal2f (vec2f_t v)
|
|
{
|
|
return v / vsqrt2f (dot2f (v, v));
|
|
}
|
|
|
|
#ifndef IMPLEMENT_VEC2F_Funcs
|
|
GNU89INLINE inline
|
|
#else
|
|
VISIBLE
|
|
#endif
|
|
vec2f_t
|
|
magnitude2f (vec2f_t v)
|
|
{
|
|
return vsqrt2f (dot2f (v, v));
|
|
}
|
|
|
|
#endif//__QF_simd_vec2f_h
|