| /** |
| * |
| * File Name: armVCCOMM_SAD.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 NxM blocks |
| * |
| */ |
| |
| #include "omxtypes.h" |
| #include "armOMX.h" |
| #include "omxVC.h" |
| |
| #include "armCOMM.h" |
| |
| /** |
| * Function: armVCCOMM_SAD |
| * |
| * Description: |
| * This function calculate the SAD for NxM blocks. |
| * |
| * Remarks: |
| * |
| * [in] pSrcOrg Pointer to the original block |
| * [in] iStepOrg Step of the original block buffer |
| * [in] pSrcRef Pointer to the reference block |
| * [in] iStepRef Step of the reference block buffer |
| * [in] iHeight Height of the block |
| * [in] iWidth Width of the block |
| * [out] pDstSAD Pointer of result SAD |
| * |
| * Return Value: |
| * Standard OMXResult value. |
| * |
| */ |
| OMXResult armVCCOMM_SAD( |
| const OMX_U8* pSrcOrg, |
| OMX_U32 iStepOrg, |
| const OMX_U8* pSrcRef, |
| OMX_U32 iStepRef, |
| OMX_S32* pDstSAD, |
| OMX_U32 iHeight, |
| OMX_U32 iWidth |
| ) |
| { |
| OMX_INT x, y; |
| |
| /* check for argument error */ |
| armRetArgErrIf(pSrcOrg == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf(pSrcRef == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf(pDstSAD == NULL, OMX_Sts_BadArgErr) |
| |
| *pDstSAD = 0; |
| for (y = 0; y < iHeight; y++) |
| { |
| for (x = 0; x < iWidth; x++) |
| { |
| *pDstSAD += armAbs(pSrcOrg [(y * iStepOrg) + x] - |
| pSrcRef [(y * iStepRef) + x]); |
| } |
| } |
| |
| return OMX_Sts_NoErr; |
| } |
| |
| /***************************************************************************** |
| * END OF FILE |
| *****************************************************************************/ |
| |
