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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 "XnUncompressedYUV422toRGBImageProcessor.h"
#include "YUV.h"
#include <XnProfiling.h>
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
XnUncompressedYUV422toRGBImageProcessor::XnUncompressedYUV422toRGBImageProcessor(XnSensorImageStream* pStream, XnSensorStreamHelper* pHelper, XnFrameBufferManager* pBufferManager) :
XnImageProcessor(pStream, pHelper, pBufferManager)
{
}
XnUncompressedYUV422toRGBImageProcessor::~XnUncompressedYUV422toRGBImageProcessor()
{
}
XnStatus XnUncompressedYUV422toRGBImageProcessor::Init()
{
XnStatus nRetVal = XN_STATUS_OK;
nRetVal = XnImageProcessor::Init();
XN_IS_STATUS_OK(nRetVal);
XN_VALIDATE_BUFFER_ALLOCATE(m_ContinuousBuffer, XN_YUV_TO_RGB_INPUT_ELEMENT_SIZE)
return (XN_STATUS_OK);
}
void XnUncompressedYUV422toRGBImageProcessor::ProcessFramePacketChunk(const XnSensorProtocolResponseHeader* /*pHeader*/, const XnUChar* pData, XnUInt32 /*nDataOffset*/, XnUInt32 nDataSize)
{
XN_PROFILING_START_SECTION("XnUncompressedYUV422toRGBImageProcessor::ProcessFramePacketChunk")
XnBuffer* pWriteBuffer = GetWriteBuffer();
if (m_ContinuousBuffer.GetSize() != 0)
{
// fill in to a whole element
XnUInt32 nReadBytes = XN_MIN(nDataSize, XN_YUV_TO_RGB_INPUT_ELEMENT_SIZE - m_ContinuousBuffer.GetSize());
m_ContinuousBuffer.UnsafeWrite(pData, nReadBytes);
pData += nReadBytes;
nDataSize -= nReadBytes;
if (m_ContinuousBuffer.GetSize() == XN_YUV_TO_RGB_INPUT_ELEMENT_SIZE)
{
if (CheckWriteBufferForOverflow(XN_YUV_TO_RGB_OUTPUT_ELEMENT_SIZE))
{
// process it
XnUInt32 nActualRead = 0;
XnUInt32 nOutputSize = pWriteBuffer->GetFreeSpaceInBuffer();
YUV422ToRGB888(m_ContinuousBuffer.GetData(), pWriteBuffer->GetUnsafeWritePointer(), XN_YUV_TO_RGB_INPUT_ELEMENT_SIZE, &nActualRead, &nOutputSize);
pWriteBuffer->UnsafeUpdateSize(XN_YUV_TO_RGB_OUTPUT_ELEMENT_SIZE);
}
m_ContinuousBuffer.Reset();
}
}
if (CheckWriteBufferForOverflow(nDataSize / XN_YUV_TO_RGB_INPUT_ELEMENT_SIZE * XN_YUV_TO_RGB_OUTPUT_ELEMENT_SIZE))
{
XnUInt32 nActualRead = 0;
XnUInt32 nOutputSize = pWriteBuffer->GetFreeSpaceInBuffer();
YUV422ToRGB888(pData, pWriteBuffer->GetUnsafeWritePointer(), nDataSize, &nActualRead, &nOutputSize);
pWriteBuffer->UnsafeUpdateSize(nOutputSize);
pData += nActualRead;
nDataSize -= nActualRead;
// if we have any bytes left, store them for next packet.
if (nDataSize > 0)
{
// no need to check for overflow. there can not be a case in which more than XN_INPUT_ELEMENT_SIZE
// are left.
m_ContinuousBuffer.UnsafeWrite(pData, nDataSize);
}
}
XN_PROFILING_END_SECTION
}
void XnUncompressedYUV422toRGBImageProcessor::OnStartOfFrame(const XnSensorProtocolResponseHeader* pHeader)
{
XnImageProcessor::OnStartOfFrame(pHeader);
m_ContinuousBuffer.Reset();
}
void XnUncompressedYUV422toRGBImageProcessor::OnEndOfFrame(const XnSensorProtocolResponseHeader* pHeader)
{
XnImageProcessor::OnEndOfFrame(pHeader);
m_ContinuousBuffer.Reset();
}
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