10c1bc742181ded4930842b46e9507372f0b1b963James Dong/** 20c1bc742181ded4930842b46e9507372f0b1b963James Dong * 30c1bc742181ded4930842b46e9507372f0b1b963James Dong * File Name: omxVCM4P10_SADQuar_8x.c 40c1bc742181ded4930842b46e9507372f0b1b963James Dong * OpenMAX DL: v1.0.2 50c1bc742181ded4930842b46e9507372f0b1b963James Dong * Revision: 9641 60c1bc742181ded4930842b46e9507372f0b1b963James Dong * Date: Thursday, February 7, 2008 70c1bc742181ded4930842b46e9507372f0b1b963James Dong * 80c1bc742181ded4930842b46e9507372f0b1b963James Dong * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. 90c1bc742181ded4930842b46e9507372f0b1b963James Dong * 100c1bc742181ded4930842b46e9507372f0b1b963James Dong * 110c1bc742181ded4930842b46e9507372f0b1b963James Dong * Description: 120c1bc742181ded4930842b46e9507372f0b1b963James Dong * This function will calculate SAD of pSrc with average of two Ref blocks 130c1bc742181ded4930842b46e9507372f0b1b963James Dong * of 8x16 or 8x8 or 8x4 140c1bc742181ded4930842b46e9507372f0b1b963James Dong * 150c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 160c1bc742181ded4930842b46e9507372f0b1b963James Dong 170c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "omxtypes.h" 180c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armOMX.h" 190c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "omxVC.h" 200c1bc742181ded4930842b46e9507372f0b1b963James Dong 210c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armVC.h" 220c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armCOMM.h" 230c1bc742181ded4930842b46e9507372f0b1b963James Dong 240c1bc742181ded4930842b46e9507372f0b1b963James Dong/** 250c1bc742181ded4930842b46e9507372f0b1b963James Dong * Function: omxVCM4P10_SADQuar_8x (6.3.5.4.3) 260c1bc742181ded4930842b46e9507372f0b1b963James Dong * 270c1bc742181ded4930842b46e9507372f0b1b963James Dong * Description: 280c1bc742181ded4930842b46e9507372f0b1b963James Dong * This function calculates the SAD between one block (pSrc) and the average 290c1bc742181ded4930842b46e9507372f0b1b963James Dong * of the other two (pSrcRef0 and pSrcRef1) for 8x16, 8x8, or 8x4 blocks. 300c1bc742181ded4930842b46e9507372f0b1b963James Dong * Rounding is applied according to the convention (a+b+1)>>1. 310c1bc742181ded4930842b46e9507372f0b1b963James Dong * 320c1bc742181ded4930842b46e9507372f0b1b963James Dong * Input Arguments: 330c1bc742181ded4930842b46e9507372f0b1b963James Dong * 340c1bc742181ded4930842b46e9507372f0b1b963James Dong * pSrc - Pointer to the original block; must be aligned on an 8-byte 350c1bc742181ded4930842b46e9507372f0b1b963James Dong * boundary. 360c1bc742181ded4930842b46e9507372f0b1b963James Dong * pSrcRef0 - Pointer to reference block 0 370c1bc742181ded4930842b46e9507372f0b1b963James Dong * pSrcRef1 - Pointer to reference block 1 380c1bc742181ded4930842b46e9507372f0b1b963James Dong * iSrcStep - Step of the original block buffer; must be a multiple of 8. 390c1bc742181ded4930842b46e9507372f0b1b963James Dong * iRefStep0 - Step of reference block 0 400c1bc742181ded4930842b46e9507372f0b1b963James Dong * iRefStep1 - Step of reference block 1 410c1bc742181ded4930842b46e9507372f0b1b963James Dong * iHeight - Height of the block; must be equal either 4, 8, or 16. 420c1bc742181ded4930842b46e9507372f0b1b963James Dong * 430c1bc742181ded4930842b46e9507372f0b1b963James Dong * Output Arguments: 440c1bc742181ded4930842b46e9507372f0b1b963James Dong * 450c1bc742181ded4930842b46e9507372f0b1b963James Dong * pDstSAD - Pointer of result SAD 460c1bc742181ded4930842b46e9507372f0b1b963James Dong * 470c1bc742181ded4930842b46e9507372f0b1b963James Dong * Return Value: 480c1bc742181ded4930842b46e9507372f0b1b963James Dong * OMX_Sts_NoErr, if the function runs without error. 490c1bc742181ded4930842b46e9507372f0b1b963James Dong * OMX_Sts_BadArgErr - bad arguments: if one of the following cases occurs: 500c1bc742181ded4930842b46e9507372f0b1b963James Dong * - iHeight is not equal to either 4, 8, or 16. 510c1bc742181ded4930842b46e9507372f0b1b963James Dong * - One of more of the following pointers is NULL: pSrc, pSrcRef0, 520c1bc742181ded4930842b46e9507372f0b1b963James Dong * pSrcRef1, pDstSAD. 530c1bc742181ded4930842b46e9507372f0b1b963James Dong * - iSrcStep is not a multiple of 8 540c1bc742181ded4930842b46e9507372f0b1b963James Dong * - Any alignment restrictions are violated 550c1bc742181ded4930842b46e9507372f0b1b963James Dong * 560c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 570c1bc742181ded4930842b46e9507372f0b1b963James DongOMXResult omxVCM4P10_SADQuar_8x( 580c1bc742181ded4930842b46e9507372f0b1b963James Dong const OMX_U8* pSrc, 590c1bc742181ded4930842b46e9507372f0b1b963James Dong const OMX_U8* pSrcRef0, 600c1bc742181ded4930842b46e9507372f0b1b963James Dong const OMX_U8* pSrcRef1, 610c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 iSrcStep, 620c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 iRefStep0, 630c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 iRefStep1, 640c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32* pDstSAD, 650c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 iHeight 660c1bc742181ded4930842b46e9507372f0b1b963James Dong) 670c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 680c1bc742181ded4930842b46e9507372f0b1b963James Dong /* check for argument error */ 690c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr) 700c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pSrcRef0 == NULL, OMX_Sts_BadArgErr) 710c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pSrcRef1 == NULL, OMX_Sts_BadArgErr) 720c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pDstSAD == NULL, OMX_Sts_BadArgErr) 730c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf((iHeight != 16) && (iHeight != 8) && 740c1bc742181ded4930842b46e9507372f0b1b963James Dong (iHeight != 4), OMX_Sts_BadArgErr) 750c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(armNot8ByteAligned(pSrc), OMX_Sts_BadArgErr) 760c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf((iSrcStep == 0) || (iSrcStep & 7), OMX_Sts_BadArgErr) 770c1bc742181ded4930842b46e9507372f0b1b963James Dong 780c1bc742181ded4930842b46e9507372f0b1b963James Dong 790c1bc742181ded4930842b46e9507372f0b1b963James Dong return armVCM4P10_SADQuar 800c1bc742181ded4930842b46e9507372f0b1b963James Dong (pSrc, pSrcRef0, pSrcRef1, iSrcStep, 810c1bc742181ded4930842b46e9507372f0b1b963James Dong iRefStep0, iRefStep1, pDstSAD, iHeight, 8); 820c1bc742181ded4930842b46e9507372f0b1b963James Dong} 830c1bc742181ded4930842b46e9507372f0b1b963James Dong 840c1bc742181ded4930842b46e9507372f0b1b963James Dong/***************************************************************************** 850c1bc742181ded4930842b46e9507372f0b1b963James Dong * END OF FILE 860c1bc742181ded4930842b46e9507372f0b1b963James Dong *****************************************************************************/ 870c1bc742181ded4930842b46e9507372f0b1b963James Dong 88