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

217 lines
6.4 KiB
C++
Raw Normal View History

2016-03-01 15:47:10 +00:00
/*
** music_timidity_mididevice.cpp
** Provides access to TiMidity as a generic MIDI device.
**
**---------------------------------------------------------------------------
** Copyright 2008 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 "v_text.h"
#include "timidity/timidity.h"
// MACROS ------------------------------------------------------------------
// TYPES -------------------------------------------------------------------
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
// EXTERNAL DATA DECLARATIONS ----------------------------------------------
// PRIVATE DATA DEFINITIONS ------------------------------------------------
// PUBLIC DATA DEFINITIONS -------------------------------------------------
// CODE --------------------------------------------------------------------
//==========================================================================
//
// TimidityMIDIDevice Constructor
//
//==========================================================================
TimidityMIDIDevice::TimidityMIDIDevice(const char *args, int samplerate)
: SoftSynthMIDIDevice(samplerate, 11025, 65535)
2016-03-01 15:47:10 +00:00
{
Renderer = new Timidity::Renderer((float)SampleRate, args);
}
//==========================================================================
//
// TimidityMIDIDevice Destructor
//
//==========================================================================
TimidityMIDIDevice::~TimidityMIDIDevice()
{
Close();
if (Renderer != nullptr)
2016-03-01 15:47:10 +00:00
{
delete Renderer;
}
}
//==========================================================================
//
// TimidityMIDIDevice :: Open
//
// Returns 0 on success.
//
//==========================================================================
int TimidityMIDIDevice::Open(MidiCallback callback, void *userdata)
2016-03-01 15:47:10 +00:00
{
int ret = OpenStream(2, 0, callback, userdata);
if (ret == 0)
{
Renderer->Reset();
}
return ret;
}
//==========================================================================
//
// TimidityMIDIDevice :: 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
//
//==========================================================================
2017-03-08 14:52:09 +00:00
void TimidityMIDIDevice::PrecacheInstruments(const uint16_t *instruments, int count)
2016-03-01 15:47:10 +00:00
{
for (int i = 0; i < count; ++i)
{
Renderer->MarkInstrument((instruments[i] >> 7) & 127, instruments[i] >> 14, instruments[i] & 127);
}
Renderer->load_missing_instruments();
}
//==========================================================================
//
// TimidityMIDIDevice :: HandleEvent
//
//==========================================================================
void TimidityMIDIDevice::HandleEvent(int status, int parm1, int parm2)
{
Renderer->HandleEvent(status, parm1, parm2);
}
//==========================================================================
//
// TimidityMIDIDevice :: HandleLongEvent
//
//==========================================================================
void TimidityMIDIDevice::HandleLongEvent(const uint8_t *data, int len)
2016-03-01 15:47:10 +00:00
{
Renderer->HandleLongMessage(data, len);
}
//==========================================================================
//
// TimidityMIDIDevice :: ComputeOutput
//
//==========================================================================
void TimidityMIDIDevice::ComputeOutput(float *buffer, int len)
{
Renderer->ComputeOutput(buffer, len);
for (int i = 0; i < len * 2; i++) buffer[i] *= 0.7f;
2016-03-01 15:47:10 +00:00
}
//==========================================================================
//
// TimidityMIDIDevice :: GetStats
//
//==========================================================================
FString TimidityMIDIDevice::GetStats()
{
FString dots;
FString out;
int i, used;
std::lock_guard<std::mutex> lock(CritSec);
2016-03-01 15:47:10 +00:00
for (i = used = 0; i < Renderer->voices; ++i)
{
int status = Renderer->voice[i].status;
if (!(status & Timidity::VOICE_RUNNING))
{
dots << TEXTCOLOR_PURPLE".";
}
else
{
used++;
if (status & Timidity::VOICE_SUSTAINING)
{
dots << TEXTCOLOR_BLUE;
}
else if (status & Timidity::VOICE_RELEASING)
{
dots << TEXTCOLOR_ORANGE;
}
else if (status & Timidity::VOICE_STOPPING)
{
dots << TEXTCOLOR_RED;
}
else
{
dots << TEXTCOLOR_GREEN;
}
if (!Renderer->voice[i].eg1.env.bUpdating)
{
dots << "+";
}
else
{
dots << ('0' + Renderer->voice[i].eg1.gf1.stage);
}
}
}
CritSec.unlock();
2016-03-01 15:47:10 +00:00
out.Format(TEXTCOLOR_YELLOW"%3d/%3d ", used, Renderer->voices);
out += dots;
if (Renderer->cut_notes | Renderer->lost_notes)
{
out.AppendFormat(TEXTCOLOR_RED" %d/%d", Renderer->cut_notes, Renderer->lost_notes);
}
return out;
}