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+/**
+ *
+ * File Name: armVCM4P10_SADQuar.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
+ *
+ */
+
+#include "omxtypes.h"
+#include "armOMX.h"
+
+#include "armVC.h"
+#include "armCOMM.h"
+
+/**
+ * Function: armVCM4P10_SADQuar
+ *
+ * Description:
+ * This function calculates the SAD between one block (pSrc) and the
+ * average of the other two (pSrcRef0 and pSrcRef1)
+ *
+ * Remarks:
+ *
+ * [in] pSrc Pointer to the original block
+ * [in] pSrcRef0 Pointer to reference block 0
+ * [in] pSrcRef1 Pointer to reference block 1
+ * [in] iSrcStep Step of the original block buffer
+ * [in] iRefStep0 Step of reference block 0
+ * [in] iRefStep1 Step of reference block 1
+ * [in] iHeight Height of the block
+ * [in] iWidth Width of the block
+ * [out] pDstSAD Pointer of result SAD
+ *
+ * Return Value:
+ * Standard OMXResult value.
+ *
+ */
+OMXResult armVCM4P10_SADQuar(
+ 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,
+ OMX_U32 iWidth
+)
+{
+ OMX_INT x, y;
+ OMX_S32 SAD = 0;
+
+ /* 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)
+
+ for (y = 0; y < iHeight; y++)
+ {
+ for (x = 0; x < iWidth; x++)
+ {
+ SAD += armAbs(pSrc [y * iSrcStep + x] - ((
+ pSrcRef0 [y * iRefStep0 + x] +
+ pSrcRef1 [y * iRefStep1 + x] + 1) >> 1));
+ }
+ }
+
+ *pDstSAD = SAD;
+
+ return OMX_Sts_NoErr;
+}
+
+/*****************************************************************************
+ * END OF FILE
+ *****************************************************************************/
+