Project Ne10
An Open Optimized Software Library Project for the ARM Architecture
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NE10_normalize.c
1/*
2 * Copyright 2011-15 ARM Limited and Contributors.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of ARM Limited nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY ARM LIMITED AND CONTRIBUTORS "AS IS" AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL ARM LIMITED AND CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28/*
29 * NE10 Library : math/NE10_normalize.c
30 */
31
32#include "NE10_types.h"
33#include "macros.h"
34
35#include <assert.h>
36
37#include <math.h>
38
39ne10_result_t ne10_normalize_vec2f_c (ne10_vec2f_t * dst, ne10_vec2f_t * src, ne10_uint32_t count)
40{
41 ne10_float32_t len;
42
43 NE10_LEN_OPERATION_X_C
44 (
45 len = sqrt (src[ itr ].x * src[ itr ].x +
46 src[ itr ].y * src[ itr ].y) ;
47
48 dst[ itr ].x = src[ itr ].x / len;
49 dst[ itr ].y = src[ itr ].y / len;
50 );
51}
52
53ne10_result_t ne10_normalize_vec3f_c (ne10_vec3f_t * dst, ne10_vec3f_t * src, ne10_uint32_t count)
54{
55 ne10_float32_t len;
56
57 NE10_LEN_OPERATION_X_C
58 (
59 len = sqrt (src[ itr ].x * src[ itr ].x +
60 src[ itr ].y * src[ itr ].y +
61 src[ itr ].z * src[ itr ].z);
62
63 dst[ itr ].x = src[ itr ].x / len;
64 dst[ itr ].y = src[ itr ].y / len;
65 dst[ itr ].z = src[ itr ].z / len;
66 );
67}
68
69ne10_result_t ne10_normalize_vec4f_c (ne10_vec4f_t * dst, ne10_vec4f_t * src, ne10_uint32_t count)
70{
71 ne10_float32_t len;
72
73 NE10_LEN_OPERATION_X_C
74 (
75 len = sqrt (src[ itr ].x * src[ itr ].x +
76 src[ itr ].y * src[ itr ].y +
77 src[ itr ].z * src[ itr ].z +
78 src[ itr ].w * src[ itr ].w);
79
80 dst[ itr ].x = src[ itr ].x / len;
81 dst[ itr ].y = src[ itr ].y / len;
82 dst[ itr ].z = src[ itr ].z / len;
83 dst[ itr ].w = src[ itr ].w / len;
84 );
85}
a 2-tuple of ne10_float32_t values.
Definition NE10_types.h:88
a 3-tuple of ne10_float32_t values.
Definition NE10_types.h:97
a 4-tuple of ne10_float32_t values.
Definition NE10_types.h:107