mirror of
https://git.code.sf.net/p/quake/quakeforge
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56344e478d
No need for compiler flags for 64-bit arm, and the few intrinsics that are actually needed are in a different header.
149 lines
2.9 KiB
C
149 lines
2.9 KiB
C
/*
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QF/simd/vec2d.h
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Vector functions for vec2d_t (ie, double 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_vec2d_h
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#define __QF_simd_vec2d_h
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#ifdef __aarch64__
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#include <arm_neon.h>
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#else
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#include <immintrin.h>
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#endif
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#include "QF/simd/types.h"
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GNU89INLINE inline vec2d_t vsqrt2d (vec2d_t v) __attribute__((const));
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GNU89INLINE inline vec2d_t vceil2d (vec2d_t v) __attribute__((const));
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GNU89INLINE inline vec2d_t vfloor2d (vec2d_t v) __attribute__((const));
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GNU89INLINE inline vec2d_t vtrunc2d (vec2d_t v) __attribute__((const));
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/** 2D vector dot product.
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*/
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GNU89INLINE inline vec2d_t dot2d (vec2d_t a, vec2d_t b) __attribute__((const));
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GNU89INLINE inline vec2d_t cmuld (vec2d_t a, vec2d_t b) __attribute__((const));
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#ifndef IMPLEMENT_VEC2D_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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vec2d_t
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vsqrt2d (vec2d_t v)
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{
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#ifdef __aarch64__
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return vsqrtq_f64 (v);
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#else
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return _mm_sqrt_pd (v);
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#endif
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}
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#ifndef IMPLEMENT_VEC2D_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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vec2d_t
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vceil2d (vec2d_t v)
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{
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#ifndef __SSE4_1__
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return (vec2d_t) {
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ceil (v[0]),
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ceil (v[1]),
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};
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#else
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return _mm_ceil_pd (v);
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#endif
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}
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#ifndef IMPLEMENT_VEC2D_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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vec2d_t
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vfloor2d (vec2d_t v)
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{
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#ifndef __SSE4_1__
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return (vec2d_t) {
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floor (v[0]),
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floor (v[1]),
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};
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#else
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return _mm_floor_pd (v);
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#endif
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}
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#ifndef IMPLEMENT_VEC2D_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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vec2d_t
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vtrunc2d (vec2d_t v)
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{
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#ifndef __SSE4_1__
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return (vec2d_t) {
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trunc (v[0]),
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trunc (v[1]),
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};
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#else
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return _mm_round_pd (v, _MM_FROUND_TRUNC);
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#endif
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}
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#ifndef IMPLEMENT_VEC2D_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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vec2d_t
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dot2d (vec2d_t a, vec2d_t b)
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{
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vec2d_t c = a * b;
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// gcc-11 does a good job with hadd
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c = (vec2d_t) { c[0] + c[1], c[0] + c[1] };
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return c;
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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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vec2d_t
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cmuld (vec2d_t a, vec2d_t b)
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{
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vec2d_t c1 = a * b[0];
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vec2d_t c2 = a * b[1];
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#ifndef __SSE3__
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return (vec2d_t) { c1[0] - c2[1], c1[1] + c2[0] };
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#else
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return _mm_addsub_pd (c1, (vec2d_t) { c2[1], c2[0] });
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#endif
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}
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#endif//__QF_simd_vec2d_h
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