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/*****************************************************************************
* *
* OpenNI 2.x Alpha *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of OpenNI. *
* *
* 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. *
* *
*****************************************************************************/
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include <XnPlatform.h>
#include <XnCore.h>
#include "XnFormats.h"
#include <XnOS.h>
#include <XnLog.h>
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Warray-bounds"
//---------------------------------------------------------------------------
// Defines
//---------------------------------------------------------------------------
#define XN_MIRROR_MAX_LINE_SIZE 1920*3
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
XnStatus XnMirrorOneBytePixels(XnUChar* pBuffer, XnUInt32 nBufferSize, XnUInt32 nLineSize)
{
// Local function variables
XnUInt8* pSrc = pBuffer;
XnUInt8 pLineBuffer[XN_MIRROR_MAX_LINE_SIZE];
XnUInt8* pSrcEnd = pSrc + nBufferSize;
XnUInt8* pDest = NULL;
XnUInt8* pDestVal = &pLineBuffer[0] + nLineSize - 1;
XnUInt8* pDestEnd = &pLineBuffer[0] - 1;
if (nLineSize > XN_MIRROR_MAX_LINE_SIZE)
{
return (XN_STATUS_INTERNAL_BUFFER_TOO_SMALL);
}
while (pSrc < pSrcEnd)
{
xnOSMemCopy(pLineBuffer, pSrc, nLineSize);
pDest = pDestVal;
while (pDest != pDestEnd)
{
*pSrc = *pDest;
pSrc++;
pDest--;
}
}
// All is good...
return (XN_STATUS_OK);
}
XnStatus XnMirrorTwoBytePixels(XnUChar* pBuffer, XnUInt32 nBufferSize, XnUInt32 nLineSize)
{
// Local function variables
XnUInt16* pSrc = (XnUInt16*)pBuffer;
XnUInt16 pLineBuffer[XN_MIRROR_MAX_LINE_SIZE];
XnUInt16* pSrcEnd = pSrc + nBufferSize / sizeof(XnUInt16);
XnUInt16* pDest = NULL;
XnUInt16* pDestVal = &pLineBuffer[0] + nLineSize - 1;
XnUInt16* pDestEnd = &pLineBuffer[0] - 1;
XnUInt16 nMemCpyLineSize = (XnUInt16)(nLineSize * sizeof(XnUInt16));
XnUInt16 nValue;
if (nLineSize > XN_MIRROR_MAX_LINE_SIZE)
{
return (XN_STATUS_INTERNAL_BUFFER_TOO_SMALL);
}
while (pSrc < pSrcEnd)
{
xnOSMemCopy(pLineBuffer, pSrc, nMemCpyLineSize);
pDest = pDestVal;
while (pDest != pDestEnd)
{
nValue = pDest[0];
pSrc[0] = nValue;
pDest--;
pSrc++;
}
}
// All is good...
return (XN_STATUS_OK);
}
XnStatus XnMirrorThreeBytePixels(XnUChar* pBuffer, XnUInt32 nBufferSize, XnUInt32 nLineSize)
{
// Local function variables
XnUInt8* pSrc = pBuffer;
XnUInt8 pLineBuffer[XN_MIRROR_MAX_LINE_SIZE];
XnUInt8* pSrcEnd = pSrc + nBufferSize;
XnUInt8* pDest = NULL;
XnUInt8* pDestVal = &pLineBuffer[0] + nLineSize * 3 - 1;
XnUInt8* pDestEnd = &pLineBuffer[0] - 1;
XnUInt16 nMemCpyLineSize = (XnUInt16)(nLineSize * 3);
if (nMemCpyLineSize > XN_MIRROR_MAX_LINE_SIZE)
{
return (XN_STATUS_INTERNAL_BUFFER_TOO_SMALL);
}
while (pSrc < pSrcEnd)
{
xnOSMemCopy(pLineBuffer, pSrc, nMemCpyLineSize);
pDest = pDestVal;
while (pDest != pDestEnd)
{
*pSrc = *(pDest-2);
*(pSrc+1) = *(pDest-1);
*(pSrc+2) = *pDest;
pSrc+=3;
pDest-=3;
}
}
// All is good...
return (XN_STATUS_OK);
}
XnStatus XnMirrorYUV422Pixels(XnUChar* pBuffer, XnUInt32 nBufferSize, XnUInt32 nLineSize)
{
// Local function variables
XnUInt8* pSrc = pBuffer;
XnUInt8 pLineBuffer[XN_MIRROR_MAX_LINE_SIZE];
XnUInt8* pSrcEnd = (XnUInt8*)pSrc + nBufferSize;
XnUInt8* pDest = NULL;
XnUInt8* pDestVal = &pLineBuffer[(nLineSize/2-1)*sizeof(XnUInt32)]; // last element
XnUInt8* pDestEnd = &pLineBuffer[0]; // first element
XnUInt32 nMemCpyLineSize = nLineSize/2*sizeof(XnUInt32);
if (nMemCpyLineSize > XN_MIRROR_MAX_LINE_SIZE)
{
return (XN_STATUS_INTERNAL_BUFFER_TOO_SMALL);
}
while (pSrc < pSrcEnd)
{
xnOSMemCopy(pLineBuffer, pSrc, nMemCpyLineSize);
pDest = pDestVal;
while (pDest >= pDestEnd)
{
pSrc[0] = pDest[0]; // u
pSrc[1] = pDest[3]; // y1 <-> y2
pSrc[2] = pDest[2]; // v
pSrc[3] = pDest[1]; // y2 <-> y1
pSrc += 4;
pDest -= 4;
}
}
// All is good...
return (XN_STATUS_OK);
}
XnStatus XnMirrorYUYVPixels(XnUChar* pBuffer, XnUInt32 nBufferSize, XnUInt32 nLineSize)
{
// Local function variables
XnUInt8* pSrc = pBuffer;
XnUInt8 pLineBuffer[XN_MIRROR_MAX_LINE_SIZE];
XnUInt8* pSrcEnd = (XnUInt8*)pSrc + nBufferSize;
XnUInt8* pDest = NULL;
XnUInt8* pDestVal = &pLineBuffer[(nLineSize/2-1)*sizeof(XnUInt32)]; // last element
XnUInt8* pDestEnd = &pLineBuffer[0]; // first element
XnUInt32 nMemCpyLineSize = nLineSize/2*sizeof(XnUInt32);
if (nMemCpyLineSize > XN_MIRROR_MAX_LINE_SIZE)
{
return (XN_STATUS_INTERNAL_BUFFER_TOO_SMALL);
}
while (pSrc < pSrcEnd)
{
xnOSMemCopy(pLineBuffer, pSrc, nMemCpyLineSize);
pDest = pDestVal;
while (pDest >= pDestEnd)
{
pSrc[0] = pDest[2]; // y1 <-> y2
pSrc[1] = pDest[3]; // u
pSrc[2] = pDest[0]; // y2 <-> y1
pSrc[3] = pDest[1]; // v
pSrc += 4;
pDest -= 4;
}
}
// All is good...
return (XN_STATUS_OK);
}
XnStatus XnFormatsMirrorPixelData(OniPixelFormat nOutputFormat, XnUChar* pBuffer, XnUInt32 nBufferSize, XnUInt32 nXRes)
{
// Validate the input/output pointers (to make sure none of them is NULL)
XN_VALIDATE_INPUT_PTR(pBuffer);
switch (nOutputFormat)
{
case ONI_PIXEL_FORMAT_SHIFT_9_2:
case ONI_PIXEL_FORMAT_DEPTH_1_MM:
case ONI_PIXEL_FORMAT_DEPTH_100_UM:
case ONI_PIXEL_FORMAT_GRAY16:
return XnMirrorTwoBytePixels(pBuffer, nBufferSize, nXRes);
case ONI_PIXEL_FORMAT_GRAY8:
return XnMirrorOneBytePixels(pBuffer, nBufferSize, nXRes);
case ONI_PIXEL_FORMAT_YUV422:
return XnMirrorYUV422Pixels(pBuffer, nBufferSize, nXRes);
case ONI_PIXEL_FORMAT_YUYV:
return XnMirrorYUYVPixels(pBuffer, nBufferSize, nXRes);
case ONI_PIXEL_FORMAT_RGB888:
return XnMirrorThreeBytePixels(pBuffer, nBufferSize, nXRes);
default:
xnLogError(XN_MASK_FORMATS, "Mirror was not implemented for output format %d", nOutputFormat);
XN_ASSERT(FALSE);
return XN_STATUS_ERROR;
}
}
#pragma GCC diagnostic pop
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