qzdoom/src/sound/music_mus_opl.cpp

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#include "i_musicinterns.h"
CUSTOM_CVAR (Int, opl_frequency, 49716, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
{ // Clamp frequency to FMOD's limits
if (self < 4000)
self = 4000;
else if (self > 49716) // No need to go higher than this
self = 49716;
}
CVAR (Bool, opl_enable, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
static bool OPL_Active;
CUSTOM_CVAR (Bool, opl_onechip, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
{
if (OPL_Active && currSong != NULL)
{
static_cast<OPLMUSSong *>(currSong)->ResetChips ();
}
}
OPLMUSSong::OPLMUSSong (FILE *file, int len)
{
int rate = *opl_frequency;
int samples = rate/14;
Music = new OPLmusicBlock (file, len, rate, samples);
m_Stream = GSnd->CreateStream (FillStream, samples*2,
SoundStream::Mono, rate, this);
if (m_Stream == NULL)
{
Printf (PRINT_BOLD, "Could not create music stream.\n");
delete Music;
return;
}
OPL_Active = true;
}
OPLMUSSong::~OPLMUSSong ()
{
OPL_Active = false;
Stop ();
if (Music != NULL)
{
delete Music;
}
}
bool OPLMUSSong::IsValid () const
{
return m_Stream != NULL;
}
void OPLMUSSong::ResetChips ()
{
Music->ResetChips ();
}
bool OPLMUSSong::IsPlaying ()
{
return m_Status == STATE_Playing;
}
void OPLMUSSong::Play (bool looping)
{
m_Status = STATE_Stopped;
m_Looping = looping;
Music->SetLooping (looping);
Music->Restart ();
if (m_Stream->Play (snd_musicvolume))
{
m_Status = STATE_Playing;
}
}
bool OPLMUSSong::FillStream (SoundStream *stream, void *buff, int len, void *userdata)
{
OPLMUSSong *song = (OPLMUSSong *)userdata;
return song->Music->ServiceStream (buff, len);
}