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/**
*
* File Name: omxVCM4P10_SAD_4x.c
* OpenMAX DL: v1.0.2
* Revision: 9641
* Date: Thursday, February 7, 2008
*
* (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
*
*
* Description:
* This function will calculate SAD for 4x8 and 4x4 blocks
*
*/
#include "omxtypes.h"
#include "armOMX.h"
#include "omxVC.h"
#include "armVC.h"
#include "armCOMM.h"
/**
* Function: omxVCM4P10_SAD_4x (6.3.5.4.1)
*
* Description:
* This function calculates the SAD for 4x8 and 4x4 blocks.
*
* Input Arguments:
*
* pSrcOrg -Pointer to the original block; must be aligned on a 4-byte
* boundary.
* iStepOrg -Step of the original block buffer; must be a multiple of 4.
* pSrcRef -Pointer to the reference block
* iStepRef -Step of the reference block buffer
* iHeight -Height of the block; must be equal to either 4 or 8.
*
* Output Arguments:
*
* pDstSAD -Pointer of result SAD
*
* Return Value:
* OMX_Sts_NoErr, if the function runs without error.
* OMX_Sts_BadArgErr - bad arguments: if one of the following cases occurs:
* - One of more of the following pointers is NULL:
* pSrcOrg, pSrcRef, or pDstSAD
* - iHeight is not equal to either 4 or 8.
* - iStepOrg is not a multiple of 4
* - Any alignment restrictions are violated
*
*/
OMXResult omxVCM4P10_SAD_4x(
const OMX_U8* pSrcOrg,
OMX_U32 iStepOrg,
const OMX_U8* pSrcRef,
OMX_U32 iStepRef,
OMX_S32* pDstSAD,
OMX_U32 iHeight
)
{
/* check for argument error */
armRetArgErrIf(pSrcOrg == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(pSrcRef == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(pDstSAD == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf((iHeight != 8) && (iHeight != 4), OMX_Sts_BadArgErr)
armRetArgErrIf(armNot4ByteAligned(pSrcOrg), OMX_Sts_BadArgErr)
armRetArgErrIf((iStepOrg == 0) || (iStepOrg & 3), OMX_Sts_BadArgErr)
armRetArgErrIf((iStepRef == 0) || (iStepRef & 3), OMX_Sts_BadArgErr)
return armVCCOMM_SAD
(pSrcOrg, iStepOrg, pSrcRef, iStepRef, pDstSAD, iHeight, 4);
}
/*****************************************************************************
* END OF FILE
*****************************************************************************/
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