1/** 2 * 3 * File Name: omxVCM4P10_SAD_4x.c 4 * OpenMAX DL: v1.0.2 5 * Revision: 9641 6 * Date: Thursday, February 7, 2008 7 * 8 * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. 9 * 10 * 11 * Description: 12 * This function will calculate SAD for 4x8 and 4x4 blocks 13 * 14 */ 15 16#include "omxtypes.h" 17#include "armOMX.h" 18#include "omxVC.h" 19 20#include "armVC.h" 21#include "armCOMM.h" 22 23/** 24 * Function: omxVCM4P10_SAD_4x (6.3.5.4.1) 25 * 26 * Description: 27 * This function calculates the SAD for 4x8 and 4x4 blocks. 28 * 29 * Input Arguments: 30 * 31 * pSrcOrg -Pointer to the original block; must be aligned on a 4-byte 32 * boundary. 33 * iStepOrg -Step of the original block buffer; must be a multiple of 4. 34 * pSrcRef -Pointer to the reference block 35 * iStepRef -Step of the reference block buffer 36 * iHeight -Height of the block; must be equal to either 4 or 8. 37 * 38 * Output Arguments: 39 * 40 * pDstSAD -Pointer of result SAD 41 * 42 * Return Value: 43 * OMX_Sts_NoErr, if the function runs without error. 44 * OMX_Sts_BadArgErr - bad arguments: if one of the following cases occurs: 45 * - One of more of the following pointers is NULL: 46 * pSrcOrg, pSrcRef, or pDstSAD 47 * - iHeight is not equal to either 4 or 8. 48 * - iStepOrg is not a multiple of 4 49 * - Any alignment restrictions are violated 50 * 51 */ 52OMXResult omxVCM4P10_SAD_4x( 53 const OMX_U8* pSrcOrg, 54 OMX_U32 iStepOrg, 55 const OMX_U8* pSrcRef, 56 OMX_U32 iStepRef, 57 OMX_S32* pDstSAD, 58 OMX_U32 iHeight 59) 60{ 61 /* check for argument error */ 62 armRetArgErrIf(pSrcOrg == NULL, OMX_Sts_BadArgErr) 63 armRetArgErrIf(pSrcRef == NULL, OMX_Sts_BadArgErr) 64 armRetArgErrIf(pDstSAD == NULL, OMX_Sts_BadArgErr) 65 armRetArgErrIf((iHeight != 8) && (iHeight != 4), OMX_Sts_BadArgErr) 66 armRetArgErrIf(armNot4ByteAligned(pSrcOrg), OMX_Sts_BadArgErr) 67 armRetArgErrIf((iStepOrg == 0) || (iStepOrg & 3), OMX_Sts_BadArgErr) 68 armRetArgErrIf((iStepRef == 0) || (iStepRef & 3), OMX_Sts_BadArgErr) 69 70 return armVCCOMM_SAD 71 (pSrcOrg, iStepOrg, pSrcRef, iStepRef, pDstSAD, iHeight, 4); 72} 73 74/***************************************************************************** 75 * END OF FILE 76 *****************************************************************************/ 77 78