qzdoom/src/sound/music_mus_opl.cpp

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2016-03-01 15:47:10 +00:00
#include "i_musicinterns.h"
#include "oplsynth/muslib.h"
#include "oplsynth/opl.h"
static bool OPL_Active;
CUSTOM_CVAR (Int, opl_numchips, 2, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
{
if (*self <= 0)
{
self = 1;
}
else if (*self > MAXOPL2CHIPS)
{
self = MAXOPL2CHIPS;
}
else if (OPL_Active && currSong != NULL)
{
static_cast<OPLMUSSong *>(currSong)->ResetChips ();
}
}
CVAR(Int, opl_core, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
int current_opl_core;
// Get OPL core override from $mididevice
void OPL_SetCore(const char *args)
{
current_opl_core = opl_core;
if (args != NULL && *args >= '0' && *args < '4') current_opl_core = *args - '0';
}
OPLMUSSong::OPLMUSSong (FileReader &reader, const char *args)
{
int samples = int(OPL_SAMPLE_RATE / 14);
OPL_SetCore(args);
Music = new OPLmusicFile (&reader);
m_Stream = GSnd->CreateStream (FillStream, samples*4,
(current_opl_core == 0 ? SoundStream::Mono : 0) | SoundStream::Float, int(OPL_SAMPLE_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, int subsong)
{
m_Status = STATE_Stopped;
m_Looping = looping;
Music->SetLooping (looping);
Music->Restart ();
if (m_Stream == NULL || m_Stream->Play (true, 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);
}
MusInfo *OPLMUSSong::GetOPLDumper(const char *filename)
{
return new OPLMUSDumper(this, filename);
}
OPLMUSSong::OPLMUSSong(const OPLMUSSong *original, const char *filename)
{
Music = new OPLmusicFile(original->Music, filename);
m_Stream = NULL;
}
OPLMUSDumper::OPLMUSDumper(const OPLMUSSong *original, const char *filename)
: OPLMUSSong(original, filename)
{
}
void OPLMUSDumper::Play(bool looping, int)
{
Music->Dump();
}