| /* |
| * 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: omxVCM4P10_InterpolateHalfHor_Luma.c |
| * OpenMAX DL: v1.0.2 |
| * Revision: 9641 |
| * Date: Thursday, February 7, 2008 |
| * |
| * |
| * |
| * Description: |
| * This function will calculate Half horizontal luma interpolation |
| * |
| */ |
| |
| #include "omxtypes.h" |
| #include "armOMX.h" |
| #include "omxVC.h" |
| |
| #include "armCOMM.h" |
| #include "armVC.h" |
| |
| /** |
| * Function: omxVCM4P10_InterpolateHalfHor_Luma (6.3.5.5.1) |
| * |
| * Description: |
| * This function performs interpolation for two horizontal 1/2-pel positions |
| * (-1/2,0) and (1/2, 0) - around a full-pel position. |
| * |
| * Input Arguments: |
| * |
| * pSrc - Pointer to the top-left corner of the block used to interpolate in |
| * the reconstruction frame plane. |
| * iSrcStep - Step of the source buffer. |
| * iDstStep - Step of the destination(interpolation) buffer; must be a |
| * multiple of iWidth. |
| * iWidth - Width of the current block; must be equal to either 4, 8, or 16 |
| * iHeight - Height of the current block; must be equal to 4, 8, or 16 |
| * |
| * Output Arguments: |
| * |
| * pDstLeft -Pointer to the interpolation buffer of the left -pel position |
| * (-1/2, 0) |
| * If iWidth==4, 4-byte alignment required. |
| * If iWidth==8, 8-byte alignment required. |
| * If iWidth==16, 16-byte alignment required. |
| * pDstRight -Pointer to the interpolation buffer of the right -pel |
| * position (1/2, 0) |
| * If iWidth==4, 4-byte alignment required. |
| * If iWidth==8, 8-byte alignment required. |
| * If iWidth==16, 16-byte alignment required. |
| * |
| * Return Value: |
| * |
| * OMX_Sts_NoErr - no error |
| * OMX_Sts_BadArgErr - bad arguments; returned if any of the following |
| * conditions are true: |
| * - at least one of the following pointers is NULL: |
| * pSrc, pDstLeft, or pDstRight |
| * - iWidth or iHeight have values other than 4, 8, or 16 |
| * - iWidth==4 but pDstLeft and/or pDstRight is/are not aligned on a 4-byte boundary |
| * - iWidth==8 but pDstLeft and/or pDstRight is/are not aligned on a 8-byte boundary |
| * - iWidth==16 but pDstLeft and/or pDstRight is/are not aligned on a 16-byte boundary |
| * - any alignment restrictions are violated |
| * |
| */ |
| |
| OMXResult omxVCM4P10_InterpolateHalfHor_Luma( |
| const OMX_U8* pSrc, |
| OMX_U32 iSrcStep, |
| OMX_U8* pDstLeft, |
| OMX_U8* pDstRight, |
| OMX_U32 iDstStep, |
| OMX_U32 iWidth, |
| OMX_U32 iHeight |
| ) |
| { |
| OMXResult RetValue; |
| |
| /* check for argument error */ |
| armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf(pDstLeft == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf(pDstRight == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf((iWidth == 4) && |
| armNot4ByteAligned(pDstLeft) && |
| armNot4ByteAligned(pDstRight), OMX_Sts_BadArgErr) |
| armRetArgErrIf((iWidth == 8) && |
| armNot8ByteAligned(pDstLeft) && |
| armNot8ByteAligned(pDstRight), OMX_Sts_BadArgErr) |
| armRetArgErrIf((iWidth == 16) && |
| armNot16ByteAligned(pDstLeft) && |
| armNot16ByteAligned(pDstRight), OMX_Sts_BadArgErr) |
| |
| armRetArgErrIf((iHeight != 16) && (iHeight != 8)&& (iHeight != 4), OMX_Sts_BadArgErr) |
| armRetArgErrIf((iWidth != 16) && (iWidth != 8)&& (iWidth != 4), OMX_Sts_BadArgErr) |
| |
| RetValue = armVCM4P10_InterpolateHalfHor_Luma ( |
| pSrc - 1, |
| iSrcStep, |
| pDstLeft, |
| iDstStep, |
| iWidth, |
| iHeight); |
| |
| if (RetValue != OMX_Sts_NoErr) |
| { |
| return RetValue; |
| } |
| |
| RetValue = armVCM4P10_InterpolateHalfHor_Luma ( |
| pSrc, |
| iSrcStep, |
| pDstRight, |
| iDstStep, |
| iWidth, |
| iHeight); |
| |
| return RetValue; |
| } |
| |
| /***************************************************************************** |
| * END OF FILE |
| *****************************************************************************/ |
| |
