| /* |
| * Copyright (C) 2007-2008 ARM Limited |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| /** |
| * |
| * File Name: omxVCCOMM_Copy8x8.c |
| * OpenMAX DL: v1.0.2 |
| * Revision: 9641 |
| * Date: Thursday, February 7, 2008 |
| * |
| * |
| * |
| * Description: |
| * MPEG4 8x8 Copy module |
| * |
| */ |
| |
| #include "omxtypes.h" |
| #include "armOMX.h" |
| #include "omxVC.h" |
| |
| #include "armCOMM.h" |
| |
| /** |
| * Function: omxVCCOMM_Copy8x8 (6.1.3.3.1) |
| * |
| * Description: |
| * Copies the reference 8x8 block to the current block. |
| * |
| * Input Arguments: |
| * |
| * pSrc - pointer to the reference block in the source frame; must be |
| * aligned on an 8-byte boundary. |
| * step - distance between the starts of consecutive lines in the reference |
| * frame, in bytes; must be a multiple of 8 and must be larger than |
| * or equal to 8. |
| * |
| * Output Arguments: |
| * |
| * pDst - pointer to the destination block; must be aligned on an 8-byte |
| * boundary. |
| * |
| * Return Value: |
| * |
| * OMX_Sts_NoErr - no error |
| * OMX_Sts_BadArgErr - bad arguments; returned under any of the following |
| * conditions: |
| * - one or more of the following pointers is NULL: pSrc, pDst |
| * - one or more of the following pointers is not aligned on an 8-byte |
| * boundary: pSrc, pDst |
| * - step <8 or step is not a multiple of 8. |
| * |
| */ |
| |
| OMXResult omxVCCOMM_Copy8x8( |
| const OMX_U8 *pSrc, |
| OMX_U8 *pDst, |
| OMX_INT step) |
| { |
| /* Definitions and Initializations*/ |
| |
| OMX_INT count,index, x, y; |
| |
| /* Argument error checks */ |
| armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr); |
| armRetArgErrIf(pDst == NULL, OMX_Sts_BadArgErr); |
| armRetArgErrIf(!armIs8ByteAligned(pSrc), OMX_Sts_BadArgErr); |
| armRetArgErrIf(!armIs8ByteAligned(pDst), OMX_Sts_BadArgErr); |
| armRetArgErrIf(((step < 8) || (step % 8)), OMX_Sts_BadArgErr); |
| |
| |
| /* Copying the ref 8x8 blk to the curr blk */ |
| for (y = 0, count = 0, index = 0; y < 8; y++, count = count + step - 8) |
| { |
| for (x = 0; x < 8; x++, count++, index++) |
| { |
| pDst[index] = pSrc[count]; |
| } |
| } |
| return OMX_Sts_NoErr; |
| } |