/******************************************************************************
|
*
|
* Copyright (C) 2018 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 hme_common_utils.h
|
*
|
* \brief
|
* Common utility functions used by ME
|
*
|
* \date
|
* 18/09/2012
|
*
|
* \author
|
* Ittiam
|
*
|
******************************************************************************
|
*/
|
|
#ifndef _HME_COMMON_UTILS_H_
|
#define _HME_COMMON_UTILS_H_
|
|
#include "ihevc_platform_macros.h"
|
|
/*****************************************************************************/
|
/* Macros */
|
/*****************************************************************************/
|
|
#define MEDIAN4(a, b, c, d, e) (median4_##e(a, b, c, d))
|
|
/*****************************************************************************/
|
/* Functions */
|
/*****************************************************************************/
|
/**
|
********************************************************************************
|
* @fn S32 median4_s16(S16 i2_n1, S16 i2_n2, S16 i2_n3, S16 i2_n4);
|
*
|
* @brief Returns median4 of 4 16 bits signed nubers
|
*
|
* @param[in] i2_n1 : first number
|
*
|
* @param[in] i2_n2 : 2nd number
|
*
|
* @param[in] i2_n3 : 3rd number
|
*
|
* @param[in] i2_n4 : 4th number (order does not matter)
|
*
|
* @return range of the number
|
********************************************************************************
|
*/
|
S16 median4_s16(S16 i2_n1, S16 i2_n2, S16 i2_n3, S16 i2_n4);
|
|
/**
|
********************************************************************************
|
* @fn S32 hme_get_range(U32 u4_num);
|
*
|
* @brief Returns the range of the number
|
*
|
* @param[in] u4_num : number whose range is to be found
|
*
|
* @return range of the number
|
********************************************************************************
|
*/
|
|
static INLINE S32 hme_get_range(U32 u4_num)
|
{
|
S32 r;
|
|
GETRANGE(r, u4_num);
|
return (r);
|
}
|
|
/**
|
********************************************************************************
|
* @fn S32 hme_compute_2d_sum_unsigned(void *pv_inp,
|
* S32 i4_blk_wd,
|
* S32 i4_blk_ht,
|
* S32 i4_stride,
|
* S32 i4_datatype)
|
*
|
* @brief Computes and returns 2D sum of a unsigned 2d buffer, with datatype
|
* equal to 8/16/32 bit.
|
*
|
* @param[in] pv_inp : input pointer
|
*
|
* @param[in] i4_blk_wd : block width
|
*
|
* @param[in] i4_blk_ht : block ht
|
*
|
* @param[in] i4_stride : stride
|
*
|
* @param[in] i4_datatype : datatype 1 - 8 bit, 2 - 16 bit, 4 - 32 bit
|
*
|
* @return sum of i4_blk_wd * i4_blk_ht number of entries starting at pv_inp
|
********************************************************************************
|
*/
|
|
U32 hme_compute_2d_sum_unsigned(
|
void *pv_inp, S32 i4_blk_wd, S32 i4_blk_ht, S32 i4_stride, S32 i4_datatype);
|
|
/**
|
********************************************************************************
|
* @fn S32 get_rand_num(S32 low, S32 high)
|
*
|
* @brief returns a radom integer in the closed interval [low, high - 1]
|
*
|
* @param[in] low : lower limit
|
*
|
* @param[in] high : higher limit
|
*
|
* @return S32 result: the random number
|
********************************************************************************
|
*/
|
S32 get_rand_num(S32 low, S32 high);
|
|
#endif /* #ifndef _HME_COMMON_UTILS_H_ */
|
