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simd like convenient funcs

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Recep Aslantas
2016-10-30 16:52:12 +02:00
parent f957b73a1d
commit c0d1cb4031
2 changed files with 54 additions and 0 deletions
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53
include/cglm-vec-ext.h Normal file
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/*
* Copyright (c), Recep Aslantas.
*
* MIT License (MIT), http://opensource.org/licenses/MIT
* Full license can be found in the LICENSE file
*/
/*!
* @brief SIMD like functions
*/
#ifndef cglm_vec_ext_h
#define cglm_vec_ext_h
#include "cglm-common.h"
#include "cglm-intrin.h"
/*!
* @brief multiplies individual items, just for convenient like SIMD
*
* @param a vec1
* @param b vec2
* @param d vec3 = (v1[0] * v2[0], v1[1] * v2[1], v1[2] * v2[2])
*/
CGLM_INLINE
void
glm_vec_mulv(vec3 a, vec3 b, vec3 d) {
d[0] = a[0] * b[0];
d[1] = a[1] * b[1];
d[2] = a[2] * b[2];
}
/*!
* @brief multiplies individual items, just for convenient like SIMD
*
* @param a v1
* @param b v2
* @param d v3 = (v1[0] * v2[0], v1[1] * v2[1], v1[2] * v2[2], v1[3] * v2[3])
*/
CGLM_INLINE
void
glm_vec4_mulv(vec4 a, vec4 b, vec4 d) {
#if defined( __SSE__ ) || defined( __SSE2__ )
_mm_store_ps(d, _mm_mul_ps(_mm_load_ps(a), _mm_load_ps(b)));
#else
d[0] = a[0] * b[0];
d[1] = a[1] * b[1];
d[2] = a[2] * b[2];
d[3] = a[3] * b[3];
#endif
}
#endif /* cglm_vec_ext_h */

1
include/cglm-vec.h
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@@ -15,6 +15,7 @@
#include "cglm-common.h"
#include "cglm-intrin.h"
#include "cglm-vec-ext.h"
/*!
* @brief copy all members of [a] to [dest]