// Destroy
BOOL AudioStream::Destroy (void)
{
BOOL fRtn = SUCCESS;
EnterCriticalSection(&write_lock);
// Stop playback
Stop ();
// Release DirectSound buffer
if (m_pdsb) {
m_pdsb->Release ();
m_pdsb = NULL;
Snd_sram -= m_cbBufSize;
}
// Delete WaveFile object
if (m_pwavefile) {
m_pwavefile->Close();
free(m_pwavefile);
m_pwavefile = NULL;
}
status = ASF_FREE;
LeaveCriticalSection(&write_lock);
return fRtn;
}
// Destroy
BOOL AudioStream::Destroy(void)
{
BOOL fRtn = SUCCESS;
ENTER_CRITICAL_SECTION(write_lock);
// Stop playback
Stop();
// Release DirectSound buffer
if (m_pdsb)
{
m_pdsb->Release();
m_pdsb = NULL;
Snd_sram -= m_cbBufSize;
}
// Delete WaveFile object
if (m_pwavefile)
{
m_pwavefile->Close();
vm_free(m_pwavefile);
m_pwavefile = NULL;
}
status = ASF_FREE;
LEAVE_CRITICAL_SECTION(write_lock);
return fRtn;
}
// Create
BOOL AudioStream::Create (LPSTR pszFilename, AudioStreamServices * pass)
{
BOOL fRtn = SUCCESS; // assume success
Assert(pszFilename);
Assert(pass);
m_pass = pass;
Init_Data();
if (pszFilename && m_pass) {
// Create a new WaveFile object
m_pwavefile = (WaveFile *)malloc(sizeof(WaveFile));
Assert(m_pwavefile);
if (m_pwavefile) {
// Call constructor
m_pwavefile->Init();
// Open given file
m_pwavefile->m_bits_per_sample_uncompressed = m_bits_per_sample_uncompressed;
if (m_pwavefile->Open (pszFilename)) {
// Calculate sound buffer size in bytes
// Buffer size is average data rate times length of buffer
// No need for buffer to be larger than wave data though
m_cbBufSize = (m_pwavefile->GetUncompressedAvgDataRate () * m_nBufLength) / 1000;
nprintf(("SOUND", "SOUND => Stream buffer created using %d bytes\n", m_cbBufSize));
// m_cbBufSize = (m_cbBufSize > m_pwavefile->GetDataSize ()) ? m_pwavefile->GetDataSize () : m_cbBufSize;
//nprintf(("Sound", "SOUND => average data rate = %d\n\r", m_pwavefile->GetUncompressedAvgDataRate ()));
//nprintf(("Sound", "SOUND => m_cbBufSize = %d\n\r", m_cbBufSize));
// Create sound buffer
HRESULT hr;
memset (&m_dsbd, 0, sizeof (DSBUFFERDESC));
m_dsbd.dwSize = sizeof (DSBUFFERDESC);
m_dsbd.dwBufferBytes = m_cbBufSize;
m_dsbd.lpwfxFormat = &m_pwavefile->m_wfmt;
m_dsbd.dwFlags = DSBCAPS_STATIC | DSBCAPS_CTRLPAN | DSBCAPS_CTRLVOLUME | DSBCAPS_LOCSOFTWARE;
hr = (m_pass->GetPDS ())->CreateSoundBuffer (&m_dsbd, &m_pdsb, NULL);
if (hr == DS_OK) {
// Cue for playback
Cue ();
Snd_sram += m_cbBufSize;
}
else {
// Error, unable to create DirectSound buffer
nprintf(("Sound", "SOUND => Error, unable to create DirectSound buffer\n\r"));
if (hr == DSERR_BADFORMAT) {
nprintf(("Sound", "SOUND => Bad format (probably ADPCM)\n\r"));
}
fRtn = FAILURE;
}
}
else {
// Error opening file
nprintf(("SOUND", "SOUND => Failed to open wave file: %s\n\r", pszFilename));
m_pwavefile->Close();
free(m_pwavefile);
m_pwavefile = NULL;
fRtn = FAILURE;
}
}
else {
// Error, unable to create WaveFile object
nprintf(("Sound", "SOUND => Failed to create WaveFile object %s\n\r", pszFilename));
fRtn = FAILURE;
}
}
else {
// Error, passed invalid parms
fRtn = FAILURE;
}
return (fRtn);
}
