46 lines
993 B
C
46 lines
993 B
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_mat2_sse_h
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#define cglm_mat2_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_mat2_mul_sse2(mat2 m1, mat2 m2, mat2 dest) {
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__m128 x0, x1, x2;
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x1 = glmm_load(m1[0]); /* d c b a */
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x2 = glmm_load(m2[0]); /* h g f e */
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/*
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dest[0][0] = a * e + c * f;
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dest[0][1] = b * e + d * f;
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dest[1][0] = a * g + c * h;
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dest[1][1] = b * g + d * h;
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*/
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x0 = _mm_mul_ps(_mm_movelh_ps(x1, x1), glmm_shuff1(x2, 2, 2, 0, 0));
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x1 = _mm_mul_ps(_mm_movehl_ps(x1, x1), glmm_shuff1(x2, 3, 3, 1, 1));
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x1 = _mm_add_ps(x0, x1);
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glmm_store(dest[0], x1);
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}
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CGLM_INLINE
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void
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glm_mat2_transp_sse2(mat2 m, mat2 dest) {
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/* d c b a */
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/* d b c a */
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glmm_store(dest[0], glmm_shuff1(glmm_load(m[0]), 3, 1, 2, 0));
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}
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#endif
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#endif /* cglm_mat2_sse_h */
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