1/** 2 * 3 * File Name: omxVCCOMM_SAD_16x.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 16x16 and 16x8 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: omxVCCOMM_SAD_16x (6.1.4.1.4) 25 * 26 * Description: 27 * This function calculates the SAD for 16x16 and 16x8 blocks. 28 * 29 * Input Arguments: 30 * 31 * pSrcOrg - Pointer to the original block; must be aligned on a 16-byte 32 * boundary. 33 * iStepOrg - Step of the original block buffer 34 * pSrcRef - Pointer to the reference block 35 * iStepRef - Step of the reference block buffer 36 * iHeight - Height of the block 37 * 38 * Output Arguments: 39 * 40 * pDstSAD - Pointer of result SAD 41 * 42 * Return Value: 43 * 44 * OMX_Sts_NoErr - no error 45 * OMX_Sts_BadArgErr - bad arguments. Returned if one or more of the 46 * following conditions is true: 47 * - at least one of the following pointers is NULL: 48 * pSrcOrg, pDstSAD, or pSrcRef 49 * - pSrcOrg is not 16-byte aligned. 50 * - iStepOrg <= 0 or iStepOrg is not a multiple of 16 51 * - iStepRef <= 0 or iStepRef is not a multiple of 16 52 * - iHeight is not 8 or 16 53 * 54 */ 55OMXResult omxVCCOMM_SAD_16x( 56 const OMX_U8* pSrcOrg, 57 OMX_U32 iStepOrg, 58 const OMX_U8* pSrcRef, 59 OMX_U32 iStepRef, 60 OMX_S32* pDstSAD, 61 OMX_U32 iHeight 62) 63{ 64 /* check for argument error */ 65 armRetArgErrIf(pSrcOrg == NULL, OMX_Sts_BadArgErr) 66 armRetArgErrIf(pSrcRef == NULL, OMX_Sts_BadArgErr) 67 armRetArgErrIf(pDstSAD == NULL, OMX_Sts_BadArgErr) 68 armRetArgErrIf((iHeight != 16) && (iHeight != 8), OMX_Sts_BadArgErr) 69 armRetArgErrIf(armNot16ByteAligned(pSrcOrg), OMX_Sts_BadArgErr) 70 armRetArgErrIf((iStepOrg == 0) || (iStepOrg & 15), OMX_Sts_BadArgErr) 71 armRetArgErrIf((iStepRef == 0) || (iStepRef & 15), OMX_Sts_BadArgErr) 72 73 return armVCCOMM_SAD 74 (pSrcOrg, iStepOrg, pSrcRef, iStepRef, pDstSAD, iHeight, 16); 75} 76 77/***************************************************************************** 78 * END OF FILE 79 *****************************************************************************/ 80 81