| /** |
| * |
| * File Name: armVCCOMM_Average.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 Average of two blocks if size iWidth X iHeight |
| * |
| */ |
| |
| #include "omxtypes.h" |
| #include "armOMX.h" |
| #include "omxVC.h" |
| |
| #include "armCOMM.h" |
| #include "armVC.h" |
| |
| /** |
| * Function: armVCCOMM_Average |
| * |
| * Description: |
| * This function calculates the average of two blocks and stores the result. |
| * |
| * Remarks: |
| * |
| * [in] pPred0 Pointer to the top-left corner of reference block 0 |
| * [in] pPred1 Pointer to the top-left corner of reference block 1 |
| * [in] iPredStep0 Step of reference block 0 |
| * [in] iPredStep1 Step of reference block 1 |
| * [in] iDstStep Step of the destination buffer |
| * [in] iWidth Width of the blocks |
| * [in] iHeight Height of the blocks |
| * [out] pDstPred Pointer to the destination buffer |
| * |
| * Return Value: |
| * Standard OMXResult value. |
| * |
| */ |
| OMXResult armVCCOMM_Average ( |
| const OMX_U8* pPred0, |
| const OMX_U8* pPred1, |
| OMX_U32 iPredStep0, |
| OMX_U32 iPredStep1, |
| OMX_U8* pDstPred, |
| OMX_U32 iDstStep, |
| OMX_U32 iWidth, |
| OMX_U32 iHeight |
| ) |
| { |
| OMX_U32 x, y; |
| |
| /* check for argument error */ |
| armRetArgErrIf(pPred0 == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf(pPred1 == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf(pDstPred == NULL, OMX_Sts_BadArgErr) |
| |
| for (y = 0; y < iHeight; y++) |
| { |
| for (x = 0; x < iWidth; x++) |
| { |
| pDstPred [y * iDstStep + x] = |
| (OMX_U8)(((OMX_U32)pPred0 [y * iPredStep0 + x] + |
| pPred1 [y * iPredStep1 + x] + 1) >> 1); |
| } |
| } |
| |
| return OMX_Sts_NoErr; |
| } |
| |
| /***************************************************************************** |
| * END OF FILE |
| *****************************************************************************/ |
| |
