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

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/*
** music_wildmidi_mididevice.cpp
** Provides access to WildMidi as a generic MIDI device.
**
**---------------------------------------------------------------------------
** Copyright 2015 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.
**---------------------------------------------------------------------------
**
*/
// HEADER FILES ------------------------------------------------------------
#include "i_musicinterns.h"
#include "doomerrors.h"
#include "i_soundfont.h"
#include "c_console.h"
#include "v_text.h"
// MACROS ------------------------------------------------------------------
// TYPES -------------------------------------------------------------------
// WildMidi implementation of a MIDI device ---------------------------------
class WildMIDIDevice : public SoftSynthMIDIDevice
{
public:
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WildMIDIDevice(WildMidiConfig* config, int samplerate);
~WildMIDIDevice();
int Open(MidiCallback, void *userdata);
void PrecacheInstruments(const uint16_t *instruments, int count);
FString GetStats();
int GetDeviceType() const override { return MDEV_WILDMIDI; }
protected:
WildMidi::Renderer *Renderer;
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std::shared_ptr<WildMidi::Instruments> instruments;
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 ChangeSettingInt(const char *opt, int set);
void LoadInstruments(WildMidiConfig* config);
};
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
// EXTERNAL DATA DECLARATIONS ----------------------------------------------
// PRIVATE DATA DEFINITIONS ------------------------------------------------
// PUBLIC DATA DEFINITIONS -------------------------------------------------
// CODE --------------------------------------------------------------------
//==========================================================================
//
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//
//
//==========================================================================
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void WildMIDIDevice::LoadInstruments(WildMidiConfig* config)
{
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if (config->reader)
{
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config->loadedConfig = config->readerName;
config->instruments.reset(new WildMidi::Instruments(config->reader, SampleRate));
bool success = config->instruments->LoadConfig(config->readerName.c_str());
config->reader = nullptr;
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if (!success)
{
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config->instruments.reset();
config->loadedConfig = "";
throw std::runtime_error("Unable to initialize instruments for WildMidi device");
}
}
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else if (config->instruments == nullptr)
{
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throw std::runtime_error("No instruments set for WildMidi device");
}
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instruments = config->instruments;
if (instruments->LoadConfig(nullptr) < 0)
{
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throw std::runtime_error("Unable to load instruments set for WildMidi device");
}
}
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//==========================================================================
//
// WildMIDIDevice Constructor
//
//==========================================================================
WildMIDIDevice::WildMIDIDevice(WildMidiConfig *config, int samplerate)
:SoftSynthMIDIDevice(samplerate, 11025, 65535)
{
Renderer = NULL;
LoadInstruments(config);
Renderer = new WildMidi::Renderer(instruments.get());
int flags = 0;
if (config->enhanced_resampling) flags |= WildMidi::WM_MO_ENHANCED_RESAMPLING;
if (config->reverb) flags |= WildMidi::WM_MO_REVERB;
Renderer->SetOption(WildMidi::WM_MO_ENHANCED_RESAMPLING | WildMidi::WM_MO_REVERB, flags);
}
//==========================================================================
//
// WildMIDIDevice Destructor
//
//==========================================================================
WildMIDIDevice::~WildMIDIDevice()
{
Close();
if (Renderer != NULL)
{
delete Renderer;
}
}
//==========================================================================
//
// WildMIDIDevice :: Open
//
// Returns 0 on success.
//
//==========================================================================
int WildMIDIDevice::Open(MidiCallback callback, void *userdata)
{
if (Renderer == NULL)
{
return 1;
}
int ret = OpenStream(2, 0, callback, userdata);
if (ret == 0)
{
// Renderer->Reset();
}
return ret;
}
//==========================================================================
//
// WildMIDIDevice :: PrecacheInstruments
//
// 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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void WildMIDIDevice::PrecacheInstruments(const uint16_t *instruments, int count)
{
for (int i = 0; i < count; ++i)
{
Renderer->LoadInstrument((instruments[i] >> 7) & 127, instruments[i] >> 14, instruments[i] & 127);
}
}
//==========================================================================
//
// WildMIDIDevice :: HandleEvent
//
//==========================================================================
void WildMIDIDevice::HandleEvent(int status, int parm1, int parm2)
{
Renderer->ShortEvent(status, parm1, parm2);
}
//==========================================================================
//
// WildMIDIDevice :: HandleLongEvent
//
//==========================================================================
void WildMIDIDevice::HandleLongEvent(const uint8_t *data, int len)
{
Renderer->LongEvent(data, len);
}
//==========================================================================
//
// WildMIDIDevice :: ComputeOutput
//
//==========================================================================
void WildMIDIDevice::ComputeOutput(float *buffer, int len)
{
Renderer->ComputeOutput(buffer, len);
}
//==========================================================================
//
// WildMIDIDevice :: GetStats
//
//==========================================================================
FString WildMIDIDevice::GetStats()
{
FString out;
out.Format("%3d voices", Renderer->GetVoiceCount());
return out;
}
//==========================================================================
//
// WildMIDIDevice :: GetStats
//
//==========================================================================
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void WildMIDIDevice::ChangeSettingInt(const char *opt, int set)
{
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int option;
if (!stricmp(opt, "wildmidi.reverb")) option = WildMidi::WM_MO_REVERB;
else if (!stricmp(opt, "wildmidi.resampling")) option = WildMidi::WM_MO_ENHANCED_RESAMPLING;
else return;
int setit = option * int(set);
Renderer->SetOption(option, setit);
}
//==========================================================================
//
//
//
//==========================================================================
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MIDIDevice *CreateWildMIDIDevice(WildMidiConfig *config, int samplerate)
{
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return new WildMIDIDevice(config, samplerate);
}