int WaveOut::IsPlaying()
{
while (_pending)
{
if (NextBuffer() == -1) return 1;
}
return 0;
}
int WaveOut::Write(const char *buf, int len)
{
int pos = NextBuffer();
while (pos == -1)
{
WaitForSingleObject(_event,INFINITE);
pos = NextBuffer();
}
WAVEHDR *hdr = new WAVEHDR;
memset(hdr,0,sizeof(*hdr));
hdr->dwBufferLength = len;
hdr->lpData = (char *)malloc(len);
memcpy(hdr->lpData,buf,len);
waveOutPrepareHeader(_device,hdr,sizeof(*hdr));
waveOutWrite(_device,hdr,sizeof(*hdr));
_buffers[pos] = hdr;
_pending++;
_written += len;
return 0;
}
point_count_t PgReader::read(PointBuffer& buffer, point_count_t count)
{
if (eof())
return 0;
log()->get(LogLevel::Debug) << "readBufferImpl called with "
"PointBuffer filled to " << buffer.size() << " points" <<
std::endl;
point_count_t totalNumRead = 0;
while (totalNumRead < count)
{
if (m_patch.remaining == 0)
if (!NextBuffer())
return totalNumRead;
PointId bufBegin = buffer.size();
point_count_t numRead = readPgPatch(buffer, count - totalNumRead);
PointId bufEnd = bufBegin + numRead;
totalNumRead += numRead;
}
return totalNumRead;
}
void WaveOut::Flush(int t)
{
waveOutReset(_device);
while (_pending) NextBuffer();
}
