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      1 /******************************************************************************
      2  *
      3  * Copyright (C) 2015 The Android Open Source Project
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at:
      8  *
      9  * http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  *
     17  *****************************************************************************
     18  * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
     19 */
     20 /**
     21 *******************************************************************************
     22 * @file
     23 *  icv_macros.h
     24 *
     25 * @brief
     26 *  This header files contains all the common macros
     27 *
     28 * @author
     29 *  Ittiam
     30 *
     31 * @par List of Functions:
     32 *
     33 * @remarks
     34 *  None
     35 *
     36 *******************************************************************************
     37 */
     38 #ifndef __ICV_MACROS_H__
     39 #define __ICV_MACROS_H__
     40 
     41 #define ABS(x) ((x) < 0 ? (-1 * (x)) : (x))
     42 
     43 #define MAX(x,y) ((x) > (y) ? (x) : (y))
     44 
     45 #define MIN(x,y) ((x) < (y) ? (x) : (y))
     46 
     47 /* Absolute difference */
     48 #define ABS_DIF(x,y) (((x) > (y)) ? ((x) - (y)) : ((y) - (x)))
     49 
     50 #define MED3(a,b,c)   (MIN(MAX( MIN((a),(b)), (c)), MAX((a),(b))))
     51 
     52 #define AVG(a,b)      (((a) + (b) + 1) >> 1)
     53 
     54 #define MEAN(a, b)    AVG(a, b)
     55 
     56 #define CLIP3(min, max, x) (((x) > (max)) ? (max) :(((x) < (min))? (min):(x)))
     57 #define SIGN(x)    (((x) < 0) ? -1 : 1)
     58 
     59 
     60 #define ALIGN128(x) ((((x) + 127) >> 7) << 7)
     61 #define ALIGN64(x)  ((((x) + 63) >> 6) << 6)
     62 #define ALIGN32(x)  ((((x) + 31) >> 5) << 5)
     63 #define ALIGN16(x)  ((((x) + 15) >> 4) << 4)
     64 #define ALIGN8(x)   ((((x) + 7) >> 3) << 3)
     65 
     66 
     67 #define RETURN_IF(cond, retval) if(cond) {return (retval);}
     68 #define UNUSED(x) ((void)(x))
     69 
     70 #define ASSERT(x) assert(x)
     71 
     72 
     73 #endif  /* __ICV_IT_MACROS_H__ */
     74