mirror of
https://git.code.sf.net/p/quake/quakeforge
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23613ca985
In some cases, gcc-11 does a good enough job translating normal looking C expressions so use just those, but other times need to dig around for an appropriate intrinsic. Also, now need to disable psapi warnings when compiling for anything less than avx.
182 lines
3.6 KiB
C
182 lines
3.6 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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#ifndef __SSE4_1__
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return (vec2f_t) {
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ceilf (v[0]),
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ceilf (v[1]),
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};
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#else
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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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#endif
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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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#ifndef __SSE4_1__
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return (vec2f_t) {
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floorf (v[0]),
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floorf (v[1]),
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};
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#else
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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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#endif
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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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#ifndef __SSE4_1__
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return (vec2f_t) {
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truncf (v[0]),
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truncf (v[1]),
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};
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#else
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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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#endif
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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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return (vec2f_t) { c[0] + c[1], 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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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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return (vec2f_t) { c1[0] - c2[1], c1[1] + c2[0] };
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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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