sosc_test/include/cglm/simd/sse2/mat3.h

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2020-12-10 20:42:39 +00:00
/*
* Copyright (c), Recep Aslantas.
*
* MIT License (MIT), http://opensource.org/licenses/MIT
* Full license can be found in the LICENSE file
*/
#ifndef cglm_mat3_sse_h
#define cglm_mat3_sse_h
#if defined( __SSE__ ) || defined( __SSE2__ )
#include "../../common.h"
#include "../intrin.h"
CGLM_INLINE
void
glm_mat3_mul_sse2(mat3 m1, mat3 m2, mat3 dest) {
__m128 l0, l1, l2;
__m128 r0, r1, r2;
__m128 x0, x1, x2;
l0 = _mm_loadu_ps(m1[0]);
l1 = _mm_loadu_ps(&m1[1][1]);
l2 = _mm_set1_ps(m1[2][2]);
r0 = _mm_loadu_ps(m2[0]);
r1 = _mm_loadu_ps(&m2[1][1]);
r2 = _mm_set1_ps(m2[2][2]);
x1 = glmm_shuff2(l0, l1, 1, 0, 3, 3, 0, 3, 2, 0);
x2 = glmm_shuff2(l1, l2, 0, 0, 3, 2, 0, 2, 1, 0);
x0 = _mm_add_ps(_mm_mul_ps(glmm_shuff1(l0, 0, 2, 1, 0),
glmm_shuff1(r0, 3, 0, 0, 0)),
_mm_mul_ps(x1, glmm_shuff2(r0, r1, 0, 0, 1, 1, 2, 0, 0, 0)));
x0 = _mm_add_ps(x0,
_mm_mul_ps(x2, glmm_shuff2(r0, r1, 1, 1, 2, 2, 2, 0, 0, 0)));
_mm_storeu_ps(dest[0], x0);
x0 = _mm_add_ps(_mm_mul_ps(glmm_shuff1(l0, 1, 0, 2, 1),
_mm_shuffle_ps(r0, r1, _MM_SHUFFLE(2, 2, 3, 3))),
_mm_mul_ps(glmm_shuff1(x1, 1, 0, 2, 1),
glmm_shuff1(r1, 3, 3, 0, 0)));
x0 = _mm_add_ps(x0,
_mm_mul_ps(glmm_shuff1(x2, 1, 0, 2, 1),
_mm_shuffle_ps(r1, r2, _MM_SHUFFLE(0, 0, 1, 1))));
_mm_storeu_ps(&dest[1][1], x0);
dest[2][2] = m1[0][2] * m2[2][0]
+ m1[1][2] * m2[2][1]
+ m1[2][2] * m2[2][2];
}
#endif
#endif /* cglm_mat3_sse_h */