| /** |
| * |
| * File Name: omxVCM4P10_InterpolateHalfVer_Luma.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 for 4x4 blocks |
| * |
| */ |
| |
| #include "omxtypes.h" |
| #include "armOMX.h" |
| #include "omxVC.h" |
| |
| #include "armCOMM.h" |
| #include "armVC.h" |
| |
| |
| /** |
| * Function: omxVCM4P10_InterpolateHalfVer_Luma (6.3.5.5.2) |
| * |
| * Description: |
| * This function performs interpolation for two vertical 1/2-pel positions - |
| * (0, -1/2) and (0, 1/2) - around a full-pel position. |
| * |
| * Input Arguments: |
| * |
| * pSrc - Pointer to top-left corner of block used to interpolate in the |
| * reconstructed 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 either 4, 8, or 16 |
| * |
| * Output Arguments: |
| * |
| * pDstUp -Pointer to the interpolation buffer of the -pel position above |
| * the current full-pel position (0, -1/2) |
| * If iWidth==4, 4-byte alignment required. |
| * If iWidth==8, 8-byte alignment required. |
| * If iWidth==16, 16-byte alignment required. |
| * pDstDown -Pointer to the interpolation buffer of the -pel position below |
| * the current full-pel position (0, 1/2) |
| * 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, pDstUp, or pDstDown |
| * - iWidth or iHeight have values other than 4, 8, or 16 |
| * - iWidth==4 but pDstUp and/or pDstDown is/are not aligned on a 4-byte boundary |
| * - iWidth==8 but pDstUp and/or pDstDown is/are not aligned on a 8-byte boundary |
| * - iWidth==16 but pDstUp and/or pDstDown is/are not aligned on a 16-byte boundary |
| * |
| */ |
| OMXResult omxVCM4P10_InterpolateHalfVer_Luma( |
| const OMX_U8* pSrc, |
| OMX_U32 iSrcStep, |
| OMX_U8* pDstUp, |
| OMX_U8* pDstDown, |
| OMX_U32 iDstStep, |
| OMX_U32 iWidth, |
| OMX_U32 iHeight |
| ) |
| { |
| OMXResult RetValue; |
| |
| /* check for argument error */ |
| armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf(pDstUp == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf(pDstDown == NULL, OMX_Sts_BadArgErr) |
| armRetArgErrIf((iWidth == 4) && |
| armNot4ByteAligned(pDstUp) && |
| armNot4ByteAligned(pDstDown), OMX_Sts_BadArgErr) |
| armRetArgErrIf((iWidth == 8) && |
| armNot8ByteAligned(pDstUp) && |
| armNot8ByteAligned(pDstDown), OMX_Sts_BadArgErr) |
| armRetArgErrIf((iWidth == 16) && |
| armNot16ByteAligned(pDstUp) && |
| armNot16ByteAligned(pDstDown), 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_InterpolateHalfVer_Luma( |
| pSrc - iSrcStep, |
| iSrcStep, |
| pDstUp, |
| iDstStep, |
| iWidth, |
| iHeight); |
| |
| if (RetValue != OMX_Sts_NoErr) |
| { |
| return RetValue; |
| } |
| |
| RetValue = armVCM4P10_InterpolateHalfVer_Luma( |
| pSrc, |
| iSrcStep, |
| pDstDown, |
| iDstStep, |
| iWidth, |
| iHeight); |
| |
| return RetValue; |
| } |
| |
| /***************************************************************************** |
| * END OF FILE |
| *****************************************************************************/ |
| |
