Project Ne10
An Open Optimized Software Library Project for the ARM Architecture
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NE10_macros.h
1/*
2 * Copyright 2013-15 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 : inc/NE10_macros.h
30 */
31
36#ifndef NE10_MACROS_H
37#define NE10_MACROS_H
38
39#ifdef __cplusplus
40extern "C" {
41#endif
42
44// constant values that are used across the library
46
47#define NE10_PI (ne10_float32_t)(3.1415926535897932384626433832795)
48
50// some external macro definitions to be exposed to the users
52
53#define NE10_MALLOC malloc
54#define NE10_FREE(p) \
55 do { \
56 free(p); \
57 p = NULL; \
58 }while(0)
59
60#define NE10_MIN(a,b) ((a)>(b)?(b):(a))
61#define NE10_MAX(a,b) ((a)<(b)?(b):(a))
62
63#define NE10_BYTE_ALIGNMENT(address, alignment) \
64 do { \
65 (address) = (((address) + ((alignment) - 1)) & ~ ((alignment) - 1)); \
66 }while (0)
67
69// macro definitions for float to fixed point
71#define NE10_F2I16_MAX 32767
72#define NE10_F2I16_SHIFT 15
73#define NE10_F2I16_SAMPPROD ne10_int32_t
74#define NE10_F2I16_OP(x) (ne10_int16_t)((x)*NE10_F2I16_MAX + 0.5f)
75#define NE10_F2I16_SROUND(x) (ne10_int16_t)((((x)<<1)+(1<<NE10_F2I16_SHIFT))>>16)
76#define NE10_F2I16_SMUL(a,b) ((NE10_F2I16_SAMPPROD)(a)*(b))
77#define NE10_F2I16_FIXDIV(c,div) \
78 do { ((c).r) = ( ( ((c).r)/div) ); \
79 ((c).i) = ( ( ((c).i)/div) ); }while (0)
80
81#define NE10_F2I32_MAX 2147483647
82#define NE10_F2I32_SHIFT 31
83#define NE10_F2I32_SAMPPROD ne10_int64_t
84#define NE10_F2I32_OP(x) (ne10_int32_t)((x)*NE10_F2I32_MAX + 0.5f)
85#define NE10_F2I32_SROUND(x) (ne10_int32_t) ((x)>>NE10_F2I32_SHIFT)
86#define NE10_F2I32_SMUL(a,b) ((NE10_F2I32_SAMPPROD)(a)*(b))
87#define NE10_F2I32_FIXDIV(c,div) \
88 do { ((c).r) = ( ( ((c).r)/div) ); \
89 ((c).i) = ( ( ((c).i)/div) ); }while (0)
90
91#ifdef __cplusplus
92}
93#endif
94
95#endif