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/******************************************************************************
*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*****************************************************************************
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/
/*********************************************************************************
* @file
* ih264_macros.h
*
* @brief
* Macro definitions used in the codec
*
* @author
* Ittiam
*
* @remarks
* None
*
*******************************************************************************
*/
#ifndef _IH264_MACROS_H_
#define _IH264_MACROS_H_
/*****************************************************************************/
/* Function Macros */
/*****************************************************************************/
#define RETURN_IF(cond, retval) if(cond) {return (retval);}
#define UNUSED(x) ((void)(x))
#define ALIGN128(x) ((((x) + 127) >> 7) << 7)
#define ALIGN64(x) ((((x) + 63) >> 6) << 6)
#define ALIGN32(x) ((((x) + 31) >> 5) << 5)
#define ALIGN16(x) ((((x) + 15) >> 4) << 4)
#define ALIGN8(x) ((((x) + 7) >> 3) << 3)
#define ALIGN4(x) ((((x) + 3) >> 2) << 2)
#define ALIGN2(x) ((((x) + 1) >> 1) << 1)
/**
******************************************************************************
* @brief Min, Max
******************************************************************************
*/
#define MAX(a,b) ((a > b)?(a):(b))
#define MIN(a,b) ((a < b)?(a):(b))
#define MIN3(a,b,c) ((a) < (b)) ? (((a) < (c)) ? (a) : (c)) : (((b) < (c)) ? (b) : (c))
#define MAX3(a,b,c) ((a) > (b)) ? (((a) > (c)) ? (a) : (c)) : (((b) > (c)) ? (b) : (c))
/**
******************************************************************************
* @brief Div, Mod
******************************************************************************
*/
#define MOD(x,y) ((x)%(y))
#define DIV(x,y) ((x)/(y))
/**
******************************************************************************
* @brief Clip
******************************************************************************
*/
#define CLIP3(miny, maxy, y) (((y) < (miny))?(miny):(((y) > (maxy))?(maxy):(y)))
/**
******************************************************************************
* @brief True, False
******************************************************************************
*/
#define BOOLEAN(x) (!!(x))
/**
******************************************************************************
* @brief Frequently used multiplications x2. x3, and x4
******************************************************************************
*/
#define X2(a) ((a) << 1)
#define X3(a) (((a) << 1) + (a))
#define X4(a) ((a) << 2)
/**
******************************************************************************
* @brief Misc
******************************************************************************
*/
#define ABS(x) ((x) < 0 ? (-(x)) : (x))
#define SIGNXY(x,y) (((y) < 0) ? (-1 * (x)) : (x))
#define SIGN(x) (((x) >= 0) ? (((x) > 0) ? 1 : 0) : -1)
#define RESET_BIT(x, pos) (x) = (x) & ~(1 << pos);
#define SET_BIT(x, pos) (x) = (x) | (1 << pos);
#define GET_BIT(x, pos) ((x) >> (pos)) & 0x1
#define INSERT_BIT(x, pos, bit) { RESET_BIT(x, pos); (x) = (x) | (bit << pos); }
#endif /*_IH264_MACROS_H_*/
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