kdatarequest_impl.cpp
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00022 #include <kdebug.h>
00023 #include "flowsystem.h"
00024 #include "convert.h"
00025 #include "kdatarequest_impl.moc"
00026 
00027 using namespace Arts;
00028 
00029 KDataRequest_impl::KDataRequest_impl()
00030 {
00031     m_lastBlockSize = 0;
00032     m_outBlock = 0;
00033 }
00034 
00035 KDataRequest_impl::~KDataRequest_impl()
00036 {
00037     delete []m_outBlock;
00038 }
00039 
00040 void KDataRequest_impl::streamInit()
00041 {
00042 }
00043 
00044 void KDataRequest_impl::streamEnd()
00045 {
00046 }
00047 
00048 void KDataRequest_impl::calculateBlock(unsigned long samples)
00049 {
00050     long blockSize = samples * 4;
00051 
00052     if(m_lastBlockSize != blockSize)
00053     {
00054         delete []m_outBlock;
00055         emit newBlockSize(blockSize);
00056     
00057         m_outBlock = new unsigned char[blockSize]; 
00058     
00059         emit newBlockPointer((long) m_outBlock);
00060 
00061         m_lastBlockSize = blockSize;
00062     }
00063 
00064     convert_stereo_2float_i16le(samples, left, right, m_outBlock);
00065     emit newData();
00066 }
00067 
00068 
00069 
00070 
00071 
00072 
00073 
00074 
00075 void KDataRequest_impl::goOn()
00076 {
00077     _node()->requireFlow();
00078 }
00079 
00080 REGISTER_IMPLEMENTATION(KDataRequest_impl);
 
This file is part of the documentation for arts Library Version 3.2.0.