ref: 5a78735802847490adc4ba4c84ac1fa6519d8b70
dir: /codec/common/src/sad_common.cpp/
/*!
* \copy
* Copyright (c) 2009-2013, Cisco Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*
* \file sample.c
*
* \brief compute SAD and SATD
*
* \date 2009.06.02 Created
*
*************************************************************************************
*/
#include "sad_common.h"
#include "macros.h"
int32_t WelsSampleSad4x4_c (uint8_t* pSample1, int32_t iStride1, uint8_t* pSample2, int32_t iStride2) {
int32_t iSadSum = 0;
int32_t i = 0;
uint8_t* pSrc1 = pSample1;
uint8_t* pSrc2 = pSample2;
for (i = 0; i < 4; i++) {
iSadSum += WELS_ABS ((pSrc1[0] - pSrc2[0]));
iSadSum += WELS_ABS ((pSrc1[1] - pSrc2[1]));
iSadSum += WELS_ABS ((pSrc1[2] - pSrc2[2]));
iSadSum += WELS_ABS ((pSrc1[3] - pSrc2[3]));
pSrc1 += iStride1;
pSrc2 += iStride2;
}
return iSadSum;
}
int32_t WelsSampleSad8x8_c (uint8_t* pSample1, int32_t iStride1, uint8_t* pSample2, int32_t iStride2) {
int32_t iSadSum = 0;
int32_t i = 0;
uint8_t* pSrc1 = pSample1;
uint8_t* pSrc2 = pSample2;
for (i = 0; i < 8; i++) {
iSadSum += WELS_ABS ((pSrc1[0] - pSrc2[0]));
iSadSum += WELS_ABS ((pSrc1[1] - pSrc2[1]));
iSadSum += WELS_ABS ((pSrc1[2] - pSrc2[2]));
iSadSum += WELS_ABS ((pSrc1[3] - pSrc2[3]));
iSadSum += WELS_ABS ((pSrc1[4] - pSrc2[4]));
iSadSum += WELS_ABS ((pSrc1[5] - pSrc2[5]));
iSadSum += WELS_ABS ((pSrc1[6] - pSrc2[6]));
iSadSum += WELS_ABS ((pSrc1[7] - pSrc2[7]));
pSrc1 += iStride1;
pSrc2 += iStride2;
}
return iSadSum;
}
int32_t WelsSampleSad16x8_c (uint8_t* pSample1, int32_t iStride1, uint8_t* pSample2, int32_t iStride2) {
int32_t iSadSum = 0;
iSadSum += WelsSampleSad8x8_c (pSample1, iStride1, pSample2, iStride2);
iSadSum += WelsSampleSad8x8_c (pSample1 + 8, iStride1, pSample2 + 8, iStride2);
return iSadSum;
}
int32_t WelsSampleSad8x16_c (uint8_t* pSample1, int32_t iStride1, uint8_t* pSample2, int32_t iStride2) {
int32_t iSadSum = 0;
iSadSum += WelsSampleSad8x8_c (pSample1, iStride1, pSample2, iStride2);
iSadSum += WelsSampleSad8x8_c (pSample1 + (iStride1 << 3), iStride1, pSample2 + (iStride2 << 3), iStride2);
return iSadSum;
}
int32_t WelsSampleSad16x16_c (uint8_t* pSample1, int32_t iStride1, uint8_t* pSample2, int32_t iStride2) {
int32_t iSadSum = 0;
iSadSum += WelsSampleSad8x8_c (pSample1, iStride1, pSample2, iStride2);
iSadSum += WelsSampleSad8x8_c (pSample1 + 8, iStride1, pSample2 + 8, iStride2);
iSadSum += WelsSampleSad8x8_c (pSample1 + (iStride1 << 3), iStride1, pSample2 + (iStride2 << 3), iStride2);
iSadSum += WelsSampleSad8x8_c (pSample1 + (iStride1 << 3) + 8, iStride1, pSample2 + (iStride2 << 3) + 8, iStride2);
return iSadSum;
}
void WelsSampleSadFour16x16_c (uint8_t* iSample1, int32_t iStride1, uint8_t* iSample2, int32_t iStride2,
int32_t* pSad) {
* (pSad) = WelsSampleSad16x16_c (iSample1, iStride1, (iSample2 - iStride2), iStride2);
* (pSad + 1) = WelsSampleSad16x16_c (iSample1, iStride1, (iSample2 + iStride2), iStride2);
* (pSad + 2) = WelsSampleSad16x16_c (iSample1, iStride1, (iSample2 - 1), iStride2);
* (pSad + 3) = WelsSampleSad16x16_c (iSample1, iStride1, (iSample2 + 1), iStride2);
}
void WelsSampleSadFour16x8_c (uint8_t* iSample1, int32_t iStride1, uint8_t* iSample2, int32_t iStride2, int32_t* pSad) {
* (pSad) = WelsSampleSad16x8_c (iSample1, iStride1, (iSample2 - iStride2), iStride2);
* (pSad + 1) = WelsSampleSad16x8_c (iSample1, iStride1, (iSample2 + iStride2), iStride2);
* (pSad + 2) = WelsSampleSad16x8_c (iSample1, iStride1, (iSample2 - 1), iStride2);
* (pSad + 3) = WelsSampleSad16x8_c (iSample1, iStride1, (iSample2 + 1), iStride2);
}
void WelsSampleSadFour8x16_c (uint8_t* iSample1, int32_t iStride1, uint8_t* iSample2, int32_t iStride2, int32_t* pSad) {
* (pSad) = WelsSampleSad8x16_c (iSample1, iStride1, (iSample2 - iStride2), iStride2);
* (pSad + 1) = WelsSampleSad8x16_c (iSample1, iStride1, (iSample2 + iStride2), iStride2);
* (pSad + 2) = WelsSampleSad8x16_c (iSample1, iStride1, (iSample2 - 1), iStride2);
* (pSad + 3) = WelsSampleSad8x16_c (iSample1, iStride1, (iSample2 + 1), iStride2);
}
void WelsSampleSadFour8x8_c (uint8_t* iSample1, int32_t iStride1, uint8_t* iSample2, int32_t iStride2, int32_t* pSad) {
* (pSad) = WelsSampleSad8x8_c (iSample1, iStride1, (iSample2 - iStride2), iStride2);
* (pSad + 1) = WelsSampleSad8x8_c (iSample1, iStride1, (iSample2 + iStride2), iStride2);
* (pSad + 2) = WelsSampleSad8x8_c (iSample1, iStride1, (iSample2 - 1), iStride2);
* (pSad + 3) = WelsSampleSad8x8_c (iSample1, iStride1, (iSample2 + 1), iStride2);
}
void WelsSampleSadFour4x4_c (uint8_t* iSample1, int32_t iStride1, uint8_t* iSample2, int32_t iStride2, int32_t* pSad) {
* (pSad) = WelsSampleSad4x4_c (iSample1, iStride1, (iSample2 - iStride2), iStride2);
* (pSad + 1) = WelsSampleSad4x4_c (iSample1, iStride1, (iSample2 + iStride2), iStride2);
* (pSad + 2) = WelsSampleSad4x4_c (iSample1, iStride1, (iSample2 - 1), iStride2);
* (pSad + 3) = WelsSampleSad4x4_c (iSample1, iStride1, (iSample2 + 1), iStride2);
}