andrewm@379: /*
andrewm@379:  *  Copyright 2013-15 ARM Limited and Contributors.
andrewm@379:  *  All rights reserved.
andrewm@379:  *
andrewm@379:  *  Redistribution and use in source and binary forms, with or without
andrewm@379:  *  modification, are permitted provided that the following conditions are met:
andrewm@379:  *    * Redistributions of source code must retain the above copyright
andrewm@379:  *      notice, this list of conditions and the following disclaimer.
andrewm@379:  *    * Redistributions in binary form must reproduce the above copyright
andrewm@379:  *      notice, this list of conditions and the following disclaimer in the
andrewm@379:  *      documentation and/or other materials provided with the distribution.
andrewm@379:  *    * Neither the name of ARM Limited nor the
andrewm@379:  *      names of its contributors may be used to endorse or promote products
andrewm@379:  *      derived from this software without specific prior written permission.
andrewm@379:  *
andrewm@379:  *  THIS SOFTWARE IS PROVIDED BY ARM LIMITED AND CONTRIBUTORS "AS IS" AND
andrewm@379:  *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
andrewm@379:  *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
andrewm@379:  *  DISCLAIMED. IN NO EVENT SHALL ARM LIMITED AND CONTRIBUTORS BE LIABLE FOR ANY
andrewm@379:  *  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
andrewm@379:  *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
andrewm@379:  *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
andrewm@379:  *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
andrewm@379:  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
andrewm@379:  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
andrewm@379:  */
andrewm@379: 
andrewm@379: /*
andrewm@379:  * NE10 Library : inc/NE10_macros.h
andrewm@379:  */
andrewm@379: 
andrewm@379: /** NE10 defines a number of macros for use in its function signatures.
andrewm@379:  *  The macros are defined within this header file.
andrewm@379:  */
andrewm@379: 
andrewm@379: #ifndef NE10_MACROS_H
andrewm@379: #define NE10_MACROS_H
andrewm@379: 
andrewm@379: #ifdef __cplusplus
andrewm@379: extern "C" {
andrewm@379: #endif
andrewm@379: 
andrewm@379: /////////////////////////////////////////////////////////
andrewm@379: // constant values that are used across the library
andrewm@379: /////////////////////////////////////////////////////////
andrewm@379: 
andrewm@379: #define NE10_PI (ne10_float32_t)(3.1415926535897932384626433832795)
andrewm@379: 
andrewm@379: /////////////////////////////////////////////////////////
andrewm@379: // some external macro definitions to be exposed to the users
andrewm@379: /////////////////////////////////////////////////////////
andrewm@379: 
andrewm@379: #define NE10_MALLOC malloc
andrewm@379: #define NE10_FREE(p) \
andrewm@379:     do { \
andrewm@379:         free(p); \
andrewm@379:         p = NULL; \
andrewm@379:     }while(0)
andrewm@379: 
andrewm@379: #define NE10_MIN(a,b) ((a)>(b)?(b):(a))
andrewm@379: #define NE10_MAX(a,b) ((a)<(b)?(b):(a))
andrewm@379: 
andrewm@379: #define NE10_BYTE_ALIGNMENT(address, alignment) \
andrewm@379:     do { \
andrewm@379:         (address) = (((address) + ((alignment) - 1)) & ~ ((alignment) - 1)); \
andrewm@379:     }while (0)
andrewm@379: 
andrewm@379: /////////////////////////////////////////////////////////
andrewm@379: // macro definitions for float to fixed point
andrewm@379: /////////////////////////////////////////////////////////
andrewm@379: #define NE10_F2I16_MAX         32767
andrewm@379: #define NE10_F2I16_SHIFT       15
andrewm@379: #define NE10_F2I16_SAMPPROD    ne10_int32_t
andrewm@379: #define NE10_F2I16_OP(x)       (ne10_int16_t)((x)*NE10_F2I16_MAX + 0.5f)
andrewm@379: #define NE10_F2I16_SROUND(x)   (ne10_int16_t)((((x)<<1)+(1<<NE10_F2I16_SHIFT))>>16)
andrewm@379: #define NE10_F2I16_SMUL(a,b)   ((NE10_F2I16_SAMPPROD)(a)*(b))
andrewm@379: #define NE10_F2I16_FIXDIV(c,div) \
andrewm@379:     do {    ((c).r) = ( ( ((c).r)/div) );  \
andrewm@379:         ((c).i) = ( ( ((c).i)/div) ); }while (0)
andrewm@379: 
andrewm@379: #define NE10_F2I32_MAX         2147483647
andrewm@379: #define NE10_F2I32_SHIFT       31
andrewm@379: #define NE10_F2I32_SAMPPROD    ne10_int64_t
andrewm@379: #define NE10_F2I32_OP(x)       (ne10_int32_t)((x)*NE10_F2I32_MAX + 0.5f)
andrewm@379: #define NE10_F2I32_SROUND(x)   (ne10_int32_t) ((x)>>NE10_F2I32_SHIFT)
andrewm@379: #define NE10_F2I32_SMUL(a,b)    ((NE10_F2I32_SAMPPROD)(a)*(b))
andrewm@379: #define NE10_F2I32_FIXDIV(c,div) \
andrewm@379:     do {    ((c).r) = ( ( ((c).r)/div) );  \
andrewm@379:         ((c).i) = ( ( ((c).i)/div) ); }while (0)
andrewm@379: 
andrewm@379: #ifdef __cplusplus
andrewm@379: }
andrewm@379: #endif
andrewm@379: 
andrewm@379: #endif