mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-23 21:02:50 +00:00
97034d9dde
For int, long, float and double. I've been meaning to add them for a while, and they're part of the new Ruamoko instructions set (which is progressing nicely).
166 lines
3.5 KiB
C
166 lines
3.5 KiB
C
/*
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QF/simd/vec2f.h
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Vector functions for vec2f_t (ie, float precision)
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Copyright (C) 2020 Bill Currie <bill@taniwha.org>
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Copyright (C) 2022 Bill Currie <bill@taniwha.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifndef __QF_simd_vec2f_h
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#define __QF_simd_vec2f_h
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#include <immintrin.h>
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#include <math.h>
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#include "QF/simd/types.h"
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GNU89INLINE inline vec2f_t vabs2f (vec2f_t v) __attribute__((const));
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GNU89INLINE inline vec2f_t vsqrt2f (vec2f_t v) __attribute__((const));
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GNU89INLINE inline vec2f_t vceil2f (vec2f_t v) __attribute__((const));
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GNU89INLINE inline vec2f_t vfloor2f (vec2f_t v) __attribute__((const));
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GNU89INLINE inline vec2f_t vtrunc2f (vec2f_t v) __attribute__((const));
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/** 2D vector dot product.
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*/
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GNU89INLINE inline vec2f_t dot2f (vec2f_t a, vec2f_t b) __attribute__((const));
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GNU89INLINE inline vec2f_t cmulf (vec2f_t a, vec2f_t b) __attribute__((const));
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GNU89INLINE inline vec2f_t normal2f (vec2f_t v) __attribute__((pure));
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GNU89INLINE inline vec2f_t magnitude2f (vec2f_t v) __attribute__((pure));
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#ifndef IMPLEMENT_VEC2F_Funcs
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GNU89INLINE inline
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#else
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VISIBLE
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#endif
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vec2f_t
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vabs2f (vec2f_t v)
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{
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const uint32_t nan = ~0u >> 1;
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const vec2i_t abs = { nan, nan };
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return (vec2f_t) ((vec2i_t) v & abs);
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}
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#ifndef IMPLEMENT_VEC2F_Funcs
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GNU89INLINE inline
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#else
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VISIBLE
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#endif
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vec2f_t
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vsqrt2f (vec2f_t v)
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{
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vec4f_t t = { v[0], v[1], 0, 0 };
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t = _mm_sqrt_ps (t);
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return (vec2f_t) { t[0], t[1] };
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}
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#ifndef IMPLEMENT_VEC2F_Funcs
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GNU89INLINE inline
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#else
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VISIBLE
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#endif
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vec2f_t
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vceil2f (vec2f_t v)
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{
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vec4f_t t = { v[0], v[1], 0, 0 };
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t = _mm_ceil_ps (t);
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return (vec2f_t) { t[0], t[1] };
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}
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#ifndef IMPLEMENT_VEC2F_Funcs
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GNU89INLINE inline
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#else
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VISIBLE
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#endif
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vec2f_t
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vfloor2f (vec2f_t v)
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{
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vec4f_t t = { v[0], v[1], 0, 0 };
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t = _mm_floor_ps (t);
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return (vec2f_t) { t[0], t[1] };
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}
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#ifndef IMPLEMENT_VEC2F_Funcs
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GNU89INLINE inline
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#else
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VISIBLE
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#endif
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vec2f_t
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vtrunc2f (vec2f_t v)
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{
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vec4f_t t = { v[0], v[1], 0, 0 };
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t = _mm_round_ps (t, _MM_FROUND_TRUNC);
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return (vec2f_t) { t[0], t[1] };
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}
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#ifndef IMPLEMENT_VEC2F_Funcs
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GNU89INLINE inline
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#else
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VISIBLE
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#endif
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vec2f_t
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dot2f (vec2f_t a, vec2f_t b)
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{
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vec2f_t c = a * b;
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vec4f_t t = { c[0], c[1], 0, 0 };
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t = _mm_hadd_ps (t, t);
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return (vec2f_t) { t[0], t[1] };
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}
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#ifndef IMPLEMENT_VEC2F_Funcs
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GNU89INLINE inline
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#else
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VISIBLE
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#endif
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vec2f_t
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cmulf (vec2f_t a, vec2f_t b)
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{
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vec2f_t c1 = a * b[0];
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vec2f_t c2 = a * b[1];
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vec4f_t c14 ={ c1[0], c1[1], 0, 0 };
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vec4f_t c24 ={ c2[1], c2[0], 0, 0 };
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vec4f_t c = _mm_addsub_ps (c14, c24);
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return (vec2f_t) { c[0], c[1] };
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}
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#ifndef IMPLEMENT_VEC2F_Funcs
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GNU89INLINE inline
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#else
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VISIBLE
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#endif
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vec2f_t
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normal2f (vec2f_t v)
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{
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return v / vsqrt2f (dot2f (v, v));
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}
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#ifndef IMPLEMENT_VEC2F_Funcs
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GNU89INLINE inline
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#else
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VISIBLE
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#endif
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vec2f_t
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magnitude2f (vec2f_t v)
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{
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return vsqrt2f (dot2f (v, v));
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}
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#endif//__QF_simd_vec2f_h
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