You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
125 lines
2.9 KiB
125 lines
2.9 KiB
4 months ago
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* 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
|
||
|
|
* icv_sad.c
|
||
|
|
*
|
||
|
|
* @brief
|
||
|
|
* This file contains the functions to compute SAD
|
||
|
|
*
|
||
|
|
* @author
|
||
|
|
* Ittiam
|
||
|
|
*
|
||
|
|
* @par List of Functions:
|
||
|
|
* sad_8x4()
|
||
|
|
*
|
||
|
|
* @remarks
|
||
|
|
* None
|
||
|
|
*
|
||
|
|
*******************************************************************************
|
||
|
|
*/
|
||
|
|
/*****************************************************************************/
|
||
|
|
/* File Includes */
|
||
|
|
/*****************************************************************************/
|
||
|
|
/* System include files */
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <assert.h>
|
||
|
|
|
||
|
|
/* User include files */
|
||
|
|
#include "icv_datatypes.h"
|
||
|
|
#include "icv_macros.h"
|
||
|
|
#include "icv_platform_macros.h"
|
||
|
|
#include "icv.h"
|
||
|
|
|
||
|
|
/**
|
||
|
|
*******************************************************************************
|
||
|
|
*
|
||
|
|
* @brief
|
||
|
|
* Compute 8x4 SAD
|
||
|
|
*
|
||
|
|
* @par Description
|
||
|
|
* Compute 8x4 sum of absolute differences between source and reference block
|
||
|
|
*
|
||
|
|
* @param[in] pu1_src
|
||
|
|
* Source buffer
|
||
|
|
*
|
||
|
|
* @param[in] pu1_ref
|
||
|
|
* Reference buffer
|
||
|
|
*
|
||
|
|
* @param[in] src_strd
|
||
|
|
* Source stride
|
||
|
|
*
|
||
|
|
* @param[in] ref_strd
|
||
|
|
* Reference stride
|
||
|
|
*
|
||
|
|
* @param[in] wd
|
||
|
|
* Assumed to be 8
|
||
|
|
*
|
||
|
|
* @param[in] ht
|
||
|
|
* Assumed to be 4
|
||
|
|
|
||
|
|
* @returns
|
||
|
|
* SAD
|
||
|
|
*
|
||
|
|
* @remarks
|
||
|
|
*
|
||
|
|
*******************************************************************************
|
||
|
|
*/
|
||
|
|
WORD32 icv_sad_8x4(UWORD8 *pu1_src,
|
||
|
|
UWORD8 *pu1_ref,
|
||
|
|
WORD32 src_strd,
|
||
|
|
WORD32 ref_strd,
|
||
|
|
WORD32 wd,
|
||
|
|
WORD32 ht)
|
||
|
|
{
|
||
|
|
WORD32 sad;
|
||
|
|
WORD32 i;
|
||
|
|
WORD32 j;
|
||
|
|
UNUSED(wd);
|
||
|
|
UNUSED(ht);
|
||
|
|
|
||
|
|
ASSERT(wd == 8);
|
||
|
|
ASSERT(ht == 4);
|
||
|
|
|
||
|
|
sad = 0;
|
||
|
|
|
||
|
|
for(j = 0; j < 4; j++)
|
||
|
|
{
|
||
|
|
for(i = 0; i < 8; i++)
|
||
|
|
{
|
||
|
|
WORD32 src;
|
||
|
|
WORD32 ref;
|
||
|
|
|
||
|
|
src = *pu1_src++;
|
||
|
|
ref = *pu1_ref++;
|
||
|
|
|
||
|
|
sad += ABS_DIF(src, ref);
|
||
|
|
}
|
||
|
|
pu1_src += (src_strd - 8);
|
||
|
|
pu1_ref += (ref_strd - 8);
|
||
|
|
}
|
||
|
|
|
||
|
|
return sad;
|
||
|
|
}
|