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NE10_macros.h
/*
* Copyright 2013-15 ARM Limited and Contributors.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of ARM Limited nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY ARM LIMITED AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL ARM LIMITED AND CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* NE10 Library : inc/NE10_macros.h
*/
#ifndef NE10_MACROS_H
#define NE10_MACROS_H
#ifdef __cplusplus
extern "C" {
#endif
// constant values that are used across the library
#define NE10_PI (ne10_float32_t)(3.1415926535897932384626433832795)
// some external macro definitions to be exposed to the users
#define NE10_MALLOC malloc
#define NE10_FREE(p) \
do { \
free(p); \
p = NULL; \
}while(0)
#define NE10_MIN(a,b) ((a)>(b)?(b):(a))
#define NE10_MAX(a,b) ((a)<(b)?(b):(a))
#define NE10_BYTE_ALIGNMENT(address, alignment) \
do { \
(address) = (((address) + ((alignment) - 1)) & ~ ((alignment) - 1)); \
}while (0)
// macro definitions for float to fixed point
#define NE10_F2I16_MAX 32767
#define NE10_F2I16_SHIFT 15
#define NE10_F2I16_SAMPPROD ne10_int32_t
#define NE10_F2I16_OP(x) (ne10_int16_t)((x)*NE10_F2I16_MAX + 0.5f)
#define NE10_F2I16_SROUND(x) (ne10_int16_t)((((x)<<1)+(1<<NE10_F2I16_SHIFT))>>16)
#define NE10_F2I16_SMUL(a,b) ((NE10_F2I16_SAMPPROD)(a)*(b))
#define NE10_F2I16_FIXDIV(c,div) \
do { ((c).r) = ( ( ((c).r)/div) ); \
((c).i) = ( ( ((c).i)/div) ); }while (0)
#define NE10_F2I32_MAX 2147483647
#define NE10_F2I32_SHIFT 31
#define NE10_F2I32_SAMPPROD ne10_int64_t
#define NE10_F2I32_OP(x) (ne10_int32_t)((x)*NE10_F2I32_MAX + 0.5f)
#define NE10_F2I32_SROUND(x) (ne10_int32_t) ((x)>>NE10_F2I32_SHIFT)
#define NE10_F2I32_SMUL(a,b) ((NE10_F2I32_SAMPPROD)(a)*(b))
#define NE10_F2I32_FIXDIV(c,div) \
do { ((c).r) = ( ( ((c).r)/div) ); \
((c).i) = ( ( ((c).i)/div) ); }while (0)
#ifdef __cplusplus
}
#endif
#endif