10c1bc742181ded4930842b46e9507372f0b1b963James Dong/** 20c1bc742181ded4930842b46e9507372f0b1b963James Dong * 30c1bc742181ded4930842b46e9507372f0b1b963James Dong * File Name: omxVCCOMM_Copy8x8.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 * MPEG4 8x8 Copy module 130c1bc742181ded4930842b46e9507372f0b1b963James Dong * 140c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 150c1bc742181ded4930842b46e9507372f0b1b963James Dong 160c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "omxtypes.h" 170c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armOMX.h" 180c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "omxVC.h" 190c1bc742181ded4930842b46e9507372f0b1b963James Dong 200c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armCOMM.h" 210c1bc742181ded4930842b46e9507372f0b1b963James Dong 220c1bc742181ded4930842b46e9507372f0b1b963James Dong/** 230c1bc742181ded4930842b46e9507372f0b1b963James Dong * Function: omxVCCOMM_Copy8x8 (6.1.3.3.1) 240c1bc742181ded4930842b46e9507372f0b1b963James Dong * 250c1bc742181ded4930842b46e9507372f0b1b963James Dong * Description: 260c1bc742181ded4930842b46e9507372f0b1b963James Dong * Copies the reference 8x8 block to the current block. 270c1bc742181ded4930842b46e9507372f0b1b963James Dong * 280c1bc742181ded4930842b46e9507372f0b1b963James Dong * Input Arguments: 290c1bc742181ded4930842b46e9507372f0b1b963James Dong * 300c1bc742181ded4930842b46e9507372f0b1b963James Dong * pSrc - pointer to the reference block in the source frame; must be 310c1bc742181ded4930842b46e9507372f0b1b963James Dong * aligned on an 8-byte boundary. 320c1bc742181ded4930842b46e9507372f0b1b963James Dong * step - distance between the starts of consecutive lines in the reference 330c1bc742181ded4930842b46e9507372f0b1b963James Dong * frame, in bytes; must be a multiple of 8 and must be larger than 340c1bc742181ded4930842b46e9507372f0b1b963James Dong * or equal to 8. 350c1bc742181ded4930842b46e9507372f0b1b963James Dong * 360c1bc742181ded4930842b46e9507372f0b1b963James Dong * Output Arguments: 370c1bc742181ded4930842b46e9507372f0b1b963James Dong * 380c1bc742181ded4930842b46e9507372f0b1b963James Dong * pDst - pointer to the destination block; must be aligned on an 8-byte 390c1bc742181ded4930842b46e9507372f0b1b963James Dong * boundary. 400c1bc742181ded4930842b46e9507372f0b1b963James Dong * 410c1bc742181ded4930842b46e9507372f0b1b963James Dong * Return Value: 420c1bc742181ded4930842b46e9507372f0b1b963James Dong * 430c1bc742181ded4930842b46e9507372f0b1b963James Dong * OMX_Sts_NoErr - no error 440c1bc742181ded4930842b46e9507372f0b1b963James Dong * OMX_Sts_BadArgErr - bad arguments; returned under any of the following 450c1bc742181ded4930842b46e9507372f0b1b963James Dong * conditions: 460c1bc742181ded4930842b46e9507372f0b1b963James Dong * - one or more of the following pointers is NULL: pSrc, pDst 470c1bc742181ded4930842b46e9507372f0b1b963James Dong * - one or more of the following pointers is not aligned on an 8-byte 480c1bc742181ded4930842b46e9507372f0b1b963James Dong * boundary: pSrc, pDst 490c1bc742181ded4930842b46e9507372f0b1b963James Dong * - step <8 or step is not a multiple of 8. 500c1bc742181ded4930842b46e9507372f0b1b963James Dong * 510c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 520c1bc742181ded4930842b46e9507372f0b1b963James Dong 530c1bc742181ded4930842b46e9507372f0b1b963James DongOMXResult omxVCCOMM_Copy8x8( 540c1bc742181ded4930842b46e9507372f0b1b963James Dong const OMX_U8 *pSrc, 550c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U8 *pDst, 560c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_INT step) 570c1bc742181ded4930842b46e9507372f0b1b963James Dong { 580c1bc742181ded4930842b46e9507372f0b1b963James Dong /* Definitions and Initializations*/ 590c1bc742181ded4930842b46e9507372f0b1b963James Dong 600c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_INT count,index, x, y; 610c1bc742181ded4930842b46e9507372f0b1b963James Dong 620c1bc742181ded4930842b46e9507372f0b1b963James Dong /* Argument error checks */ 630c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr); 640c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pDst == NULL, OMX_Sts_BadArgErr); 650c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(!armIs8ByteAligned(pSrc), OMX_Sts_BadArgErr); 660c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(!armIs8ByteAligned(pDst), OMX_Sts_BadArgErr); 670c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(((step < 8) || (step % 8)), OMX_Sts_BadArgErr); 680c1bc742181ded4930842b46e9507372f0b1b963James Dong 690c1bc742181ded4930842b46e9507372f0b1b963James Dong 700c1bc742181ded4930842b46e9507372f0b1b963James Dong /* Copying the ref 8x8 blk to the curr blk */ 710c1bc742181ded4930842b46e9507372f0b1b963James Dong for (y = 0, count = 0, index = 0; y < 8; y++, count = count + step - 8) 720c1bc742181ded4930842b46e9507372f0b1b963James Dong { 730c1bc742181ded4930842b46e9507372f0b1b963James Dong for (x = 0; x < 8; x++, count++, index++) 740c1bc742181ded4930842b46e9507372f0b1b963James Dong { 750c1bc742181ded4930842b46e9507372f0b1b963James Dong pDst[index] = pSrc[count]; 760c1bc742181ded4930842b46e9507372f0b1b963James Dong } 770c1bc742181ded4930842b46e9507372f0b1b963James Dong } 780c1bc742181ded4930842b46e9507372f0b1b963James Dong return OMX_Sts_NoErr; 790c1bc742181ded4930842b46e9507372f0b1b963James Dong } 80