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