| /** |
| * |
| * File Name: omxVCM4P10_SADQuar_8x.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 of pSrc with average of two Ref blocks |
| * of 8x16 or 8x8 or 8x4 |
| * |
| */ |
| |
| #include "omxtypes.h" |
| #include "armOMX.h" |
| #include "omxVC.h" |
| |
| #include "armVC.h" |
| #include "armCOMM.h" |
| |
| /** |
| * Function: omxVCM4P10_SADQuar_8x (6.3.5.4.3) |
| * |
| * Description: |
| * This function calculates the SAD between one block (pSrc) and the average |
| * of the other two (pSrcRef0 and pSrcRef1) for 8x16, 8x8, or 8x4 blocks. |
| * Rounding is applied according to the convention (a+b+1)>>1. |
| * |
| * Input Arguments: |
| * |
| * pSrc - Pointer to the original block; must be aligned on an 8-byte |
| * boundary. |
| * pSrcRef0 - Pointer to reference block 0 |
| * pSrcRef1 - Pointer to reference block 1 |
| * iSrcStep - Step of the original block buffer; must be a multiple of 8. |
| * iRefStep0 - Step of reference block 0 |
| * iRefStep1 - Step of reference block 1 |
| * iHeight - Height of the block; must be equal either 4, 8, or 16. |
| * |
| * 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: |
| * - iHeight is not equal to either 4, 8, or 16. |
| * - One of more of the following pointers is NULL: pSrc, pSrcRef0, |
| * pSrcRef1, pDstSAD. |
| * - iSrcStep is not a multiple of 8 |
| * - Any alignment restrictions are violated |
| * |
| */ |
| OMXResult omxVCM4P10_SADQuar_8x( |
| const OMX_U8* pSrc, |
| const OMX_U8* pSrcRef0, |
| const OMX_U8* pSrcRef1, |
| OMX_U32 iSrcStep, |
| OMX_U32 iRefStep0, |
| OMX_U32 iRefStep1, |
| OMX_U32* pDstSAD, |
| OMX_U32 iHeight |
| ) |
| { |
| /* check for argument error */ |
| armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf(pSrcRef0 == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf(pSrcRef1 == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf(pDstSAD == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf((iHeight != 16) && (iHeight != 8) && |
| (iHeight != 4), OMX_Sts_BadArgErr) |
| armRetArgErrIf(armNot8ByteAligned(pSrc), OMX_Sts_BadArgErr) |
| armRetArgErrIf((iSrcStep == 0) || (iSrcStep & 7), OMX_Sts_BadArgErr) |
| |
| |
| return armVCM4P10_SADQuar |
| (pSrc, pSrcRef0, pSrcRef1, iSrcStep, |
| iRefStep0, iRefStep1, pDstSAD, iHeight, 8); |
| } |
| |
| /***************************************************************************** |
| * END OF FILE |
| *****************************************************************************/ |
| |
