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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 #ifndef __IMPEG2_MACROS_H__
     21 #define __IMPEG2_MACROS_H__
     22 
     23 #define ABS(x) ((x) < 0 ? (-1 * (x)) : (x))
     24 
     25 #define MAX(x,y) ((x) > (y) ? (x) : (y))
     26 
     27 #define MIN(x,y) ((x) < (y) ? (x) : (y))
     28 
     29 #define CLIP(Number,Max,Min)    if((Number) > (Max)) (Number) = (Max); \
     30 else if((Number) < (Min)) (Number) = (Min)
     31 
     32 #define SIGN(Number)    (((Number) < 0) ? -1 : 1)
     33 
     34 
     35 #define BITS(val,msb,lsb) (UWORD16)((((val) >> (lsb)) & ((1 << ((msb) - (lsb) + 1)) - 1)))
     36 
     37 #define BIT(val,bit)      (UWORD16)(((val) >> (bit)) & 0x1)
     38 
     39 #define IS_VAL_IN_RANGE(val,upperLimit,lowerLimit) ((val) >= (lowerLimit) && (val) <= (upperLimit))
     40 
     41 #define MSW(dword)        (dword >> 16)
     42 #define LSW(dword)        (dword & 0xFFFF)
     43 #define DIV_2_RND(mv) (((mv) + ((mv) > 0)) >> 1)
     44 #define IS_NEG(Number)    (((Number) < 0) ? 1 : 0)
     45 
     46 #define ALIGN128(x) ((((x) + 127) >> 7) << 7)
     47 #define ALIGN64(x)  ((((x) + 63) >> 6) << 6)
     48 #define ALIGN32(x)  ((((x) + 31) >> 5) << 5)
     49 #define ALIGN16(x)  ((((x) + 15) >> 4) << 4)
     50 #define ALIGN8(x)   ((((x) + 7) >> 3) << 3)
     51 
     52 
     53 #define RETURN_IF(cond, retval) if(cond) {return (retval);}
     54 #define UNUSED(x) ((void)(x))
     55 
     56 
     57 #define ASSERT(x) assert(x)
     58 
     59 
     60 #endif  /* __IMPEG2_IT_MACROS_H__ */
     61