gzdoom-gles/src/sound/mididevices/music_timiditypp_mididevice.cpp

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/*
** music_timiditypp_mididevice.cpp
** Provides access to timidity.exe
**
**---------------------------------------------------------------------------
** Copyright 2001-2017 Randy Heit
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
#include <string>
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#include "i_musicinterns.h"
#include "v_text.h"
#include "doomerrors.h"
#include "i_soundfont.h"
#include "timiditypp/timidity.h"
#include "timiditypp/instrum.h"
#include "timiditypp/playmidi.h"
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class TimidityPPMIDIDevice : public SoftSynthMIDIDevice
{
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std::shared_ptr<TimidityPlus::Instruments> instruments;
public:
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TimidityPPMIDIDevice(TimidityConfig *config, int samplerate);
~TimidityPPMIDIDevice();
int OpenRenderer();
void PrecacheInstruments(const uint16_t *instruments, int count);
//FString GetStats();
int GetDeviceType() const override { return MDEV_TIMIDITY; }
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double test[3] = { 0, 0, 0 };
protected:
TimidityPlus::Player *Renderer;
void HandleEvent(int status, int parm1, int parm2);
void HandleLongEvent(const uint8_t *data, int len);
void ComputeOutput(float *buffer, int len);
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void LoadInstruments(TimidityConfig* config);
};
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//==========================================================================
//
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//
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//
//==========================================================================
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void TimidityPPMIDIDevice::LoadInstruments(TimidityConfig* config)
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{
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if (config->reader)
{
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config->loadedConfig = config->readerName;
config->instruments.reset(new TimidityPlus::Instruments());
bool success = config->instruments->load(config->reader);
config->reader = nullptr;
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if (!success)
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{
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config->instruments.reset();
config->loadedConfig = "";
throw std::runtime_error("Unable to initialize instruments for Timidity++ MIDI device");
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}
}
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else if (config->instruments == nullptr)
{
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throw std::runtime_error("No instruments set for Timidity++ device");
}
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instruments = config->instruments;
}
//==========================================================================
//
// TimidityPPMIDIDevice Constructor
//
//==========================================================================
TimidityPPMIDIDevice::TimidityPPMIDIDevice(TimidityConfig *config, int samplerate)
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:SoftSynthMIDIDevice(samplerate, 4000, 65000)
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{
TimidityPlus::set_playback_rate(SampleRate);
LoadInstruments(config);
Renderer = new TimidityPlus::Player(instruments.get());
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}
//==========================================================================
//
// TimidityPPMIDIDevice Destructor
//
//==========================================================================
TimidityPPMIDIDevice::~TimidityPPMIDIDevice ()
{
Close();
if (Renderer != nullptr)
{
delete Renderer;
}
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}
//==========================================================================
//
// TimidityPPMIDIDevice :: Open
//
//==========================================================================
int TimidityPPMIDIDevice::OpenRenderer()
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{
Renderer->playmidi_stream_init();
return 0;
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}
//==========================================================================
//
// TimidityPPMIDIDevice :: PrecacheInstruments
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//
// Each entry is packed as follows:
// Bits 0- 6: Instrument number
// Bits 7-13: Bank number
// Bit 14: Select drum set if 1, tone bank if 0
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//
//==========================================================================
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void TimidityPPMIDIDevice::PrecacheInstruments(const uint16_t *instrumentlist, int count)
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{
if (instruments != nullptr)
instruments->PrecacheInstruments(instrumentlist, count);
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}
//==========================================================================
//
// TimidityPPMIDIDevice :: HandleEvent
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//
//==========================================================================
void TimidityPPMIDIDevice::HandleEvent(int status, int parm1, int parm2)
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{
if (Renderer != nullptr)
Renderer->send_event(status, parm1, parm2);
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}
//==========================================================================
//
// TimidityPPMIDIDevice :: HandleLongEvent
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//
//==========================================================================
void TimidityPPMIDIDevice::HandleLongEvent(const uint8_t *data, int len)
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{
if (Renderer != nullptr)
Renderer->send_long_event(data, len);
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}
//==========================================================================
//
// TimidityPPMIDIDevice :: ComputeOutput
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//
//==========================================================================
void TimidityPPMIDIDevice::ComputeOutput(float *buffer, int len)
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{
if (Renderer != nullptr)
Renderer->compute_data(buffer, len);
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}
//==========================================================================
//
//
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//
//==========================================================================
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MIDIDevice *CreateTimidityPPMIDIDevice(TimidityConfig* config, int samplerate)
{
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return new TimidityPPMIDIDevice(config, samplerate);
}
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void TimidityPP_Shutdown()
{
TimidityPlus::free_gauss_table();
TimidityPlus::free_global_mblock();
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}