mirror of
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765 lines
20 KiB
C++
765 lines
20 KiB
C++
/*
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** music_timidity_mididevice.cpp
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** Provides access to TiMidity as a generic MIDI device.
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**
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**---------------------------------------------------------------------------
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** Copyright 2008 Randy Heit
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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// HEADER FILES ------------------------------------------------------------
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#include "i_musicinterns.h"
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#include "templates.h"
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#include "doomdef.h"
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#include "m_swap.h"
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#include "w_wad.h"
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#include "v_text.h"
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#include "timidity/timidity.h"
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#include <errno.h>
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// MACROS ------------------------------------------------------------------
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// TYPES -------------------------------------------------------------------
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struct FmtChunk
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{
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DWORD ChunkID;
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DWORD ChunkLen;
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WORD FormatTag;
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WORD Channels;
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DWORD SamplesPerSec;
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DWORD AvgBytesPerSec;
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WORD BlockAlign;
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WORD BitsPerSample;
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WORD ExtensionSize;
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WORD ValidBitsPerSample;
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DWORD ChannelMask;
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DWORD SubFormatA;
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WORD SubFormatB;
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WORD SubFormatC;
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BYTE SubFormatD[8];
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};
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// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
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// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
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// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
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// EXTERNAL DATA DECLARATIONS ----------------------------------------------
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// PRIVATE DATA DEFINITIONS ------------------------------------------------
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// PUBLIC DATA DEFINITIONS -------------------------------------------------
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CVAR(Bool, timidity_watch, false, 0)
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// CODE --------------------------------------------------------------------
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//==========================================================================
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//
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// TimidityMIDIDevice Constructor
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//
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//==========================================================================
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TimidityMIDIDevice::TimidityMIDIDevice()
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{
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Stream = NULL;
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Tempo = 0;
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Division = 0;
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Events = NULL;
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Started = false;
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Renderer = NULL;
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Renderer = new Timidity::Renderer(GSnd->GetOutputRate());
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}
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//==========================================================================
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//
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// TimidityMIDIDevice Constructor with rate parameter
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//
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//==========================================================================
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TimidityMIDIDevice::TimidityMIDIDevice(int rate)
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{
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// Need to support multiple instances with different playback rates
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// before we can use this parameter.
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rate = (int)GSnd->GetOutputRate();
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Stream = NULL;
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Tempo = 0;
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Division = 0;
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Events = NULL;
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Started = false;
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Renderer = NULL;
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Renderer = new Timidity::Renderer((float)rate);
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}
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//==========================================================================
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//
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// TimidityMIDIDevice Destructor
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//
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//==========================================================================
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TimidityMIDIDevice::~TimidityMIDIDevice()
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{
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Close();
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if (Renderer != NULL)
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{
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delete Renderer;
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}
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: Open
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//
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// Returns 0 on success.
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//
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//==========================================================================
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int TimidityMIDIDevice::Open(void (*callback)(unsigned int, void *, DWORD, DWORD), void *userdata)
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{
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Stream = GSnd->CreateStream(FillStream, int(Renderer->rate / 2) * 4,
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SoundStream::Float, int(Renderer->rate), this);
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if (Stream == NULL)
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{
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return 2;
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}
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Callback = callback;
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CallbackData = userdata;
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Tempo = 500000;
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Division = 100;
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CalcTickRate();
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Renderer->Reset();
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return 0;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: Close
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//
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//==========================================================================
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void TimidityMIDIDevice::Close()
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{
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if (Stream != NULL)
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{
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delete Stream;
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Stream = NULL;
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}
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Started = false;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: IsOpen
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//
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//==========================================================================
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bool TimidityMIDIDevice::IsOpen() const
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{
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return Stream != NULL;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: GetTechnology
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//
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//==========================================================================
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int TimidityMIDIDevice::GetTechnology() const
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{
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return MOD_SWSYNTH;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: SetTempo
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//
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//==========================================================================
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int TimidityMIDIDevice::SetTempo(int tempo)
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{
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Tempo = tempo;
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CalcTickRate();
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return 0;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: SetTimeDiv
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//
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//==========================================================================
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int TimidityMIDIDevice::SetTimeDiv(int timediv)
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{
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Division = timediv;
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CalcTickRate();
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return 0;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: CalcTickRate
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//
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// Tempo is the number of microseconds per quarter note.
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// Division is the number of ticks per quarter note.
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//
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//==========================================================================
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void TimidityMIDIDevice::CalcTickRate()
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{
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SamplesPerTick = Renderer->rate / (1000000.0 / Tempo) / Division;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: Resume
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//
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//==========================================================================
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int TimidityMIDIDevice::Resume()
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{
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if (!Started)
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{
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if (Stream->Play(true, 1/*timidity_mastervolume*/))
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{
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Started = true;
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return 0;
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}
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return 1;
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}
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return 0;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: Stop
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//
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//==========================================================================
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void TimidityMIDIDevice::Stop()
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{
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if (Started)
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{
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Stream->Stop();
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Started = false;
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}
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: StreamOutSync
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//
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// This version is called from the main game thread and needs to
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// synchronize with the player thread.
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//
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//==========================================================================
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int TimidityMIDIDevice::StreamOutSync(MIDIHDR *header)
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{
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CritSec.Enter();
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StreamOut(header);
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CritSec.Leave();
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return 0;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: StreamOut
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//
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// This version is called from the player thread so does not need to
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// arbitrate for access to the Events pointer.
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//
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//==========================================================================
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int TimidityMIDIDevice::StreamOut(MIDIHDR *header)
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{
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header->lpNext = NULL;
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if (Events == NULL)
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{
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Events = header;
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NextTickIn = SamplesPerTick * *(DWORD *)header->lpData;
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Position = 0;
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}
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else
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{
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MIDIHDR **p;
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for (p = &Events; *p != NULL; p = &(*p)->lpNext)
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{ }
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*p = header;
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}
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return 0;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: PrepareHeader
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//
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//==========================================================================
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int TimidityMIDIDevice::PrepareHeader(MIDIHDR *header)
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{
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return 0;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: UnprepareHeader
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//
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//==========================================================================
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int TimidityMIDIDevice::UnprepareHeader(MIDIHDR *header)
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{
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return 0;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: FakeVolume
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//
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// Since the TiMidity output is rendered as a normal stream, its volume is
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// controlled through the GSnd interface, not here.
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//
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//==========================================================================
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bool TimidityMIDIDevice::FakeVolume()
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{
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return false;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: NeedThreadedCallabck
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//
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// OPL can service the callback directly rather than using a separate
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// thread.
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//
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//==========================================================================
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bool TimidityMIDIDevice::NeedThreadedCallback()
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{
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return false;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: TimidityVolumeChanged
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//
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//==========================================================================
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void TimidityMIDIDevice::TimidityVolumeChanged()
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{
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/*
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if (Stream != NULL)
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{
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Stream->SetVolume(timidity_mastervolume);
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}
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*/
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: Pause
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//
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//==========================================================================
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bool TimidityMIDIDevice::Pause(bool paused)
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{
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if (Stream != NULL)
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{
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return Stream->SetPaused(paused);
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}
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return true;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: PrecacheInstruments
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//
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// Each entry is packed as follows:
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// Bits 0- 6: Instrument number
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// Bits 7-13: Bank number
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// Bit 14: Select drum set if 1, tone bank if 0
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//
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//==========================================================================
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void TimidityMIDIDevice::PrecacheInstruments(const WORD *instruments, int count)
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{
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for (int i = 0; i < count; ++i)
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{
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Renderer->MarkInstrument((instruments[i] >> 7) & 127, instruments[i] >> 14, instruments[i] & 127);
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}
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Renderer->load_missing_instruments();
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: PlayTick
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//
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// event[0] = delta time
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// event[1] = unused
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// event[2] = event
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//
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//==========================================================================
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int TimidityMIDIDevice::PlayTick()
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{
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DWORD delay = 0;
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while (delay == 0 && Events != NULL)
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{
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DWORD *event = (DWORD *)(Events->lpData + Position);
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if (MEVT_EVENTTYPE(event[2]) == MEVT_TEMPO)
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{
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SetTempo(MEVT_EVENTPARM(event[2]));
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}
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else if (MEVT_EVENTTYPE(event[2]) == MEVT_LONGMSG)
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{
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Renderer->HandleLongMessage((BYTE *)&event[3], MEVT_EVENTPARM(event[2]));
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}
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else if (MEVT_EVENTTYPE(event[2]) == 0)
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{ // Short MIDI event
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int status = event[2] & 0xff;
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int parm1 = (event[2] >> 8) & 0x7f;
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int parm2 = (event[2] >> 16) & 0x7f;
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Renderer->HandleEvent(status, parm1, parm2);
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if (timidity_watch)
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{
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static const char *const commands[8] =
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{
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"Note off",
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"Note on",
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"Poly press",
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"Ctrl change",
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"Prgm change",
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"Chan press",
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"Pitch bend",
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"SysEx"
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};
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#ifdef _WIN32
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char buffer[128];
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mysnprintf(buffer, countof(buffer), "C%02d: %11s %3d %3d\n", (status & 15) + 1, commands[(status >> 4) & 7], parm1, parm2);
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OutputDebugString(buffer);
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#else
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//fprintf(stderr, "C%02d: %11s %3d %3d\n", (status & 15) + 1, commands[(status >> 4) & 7], parm1, parm2);
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#endif
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}
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}
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// Advance to next event.
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if (event[2] < 0x80000000)
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{ // Short message
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Position += 12;
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}
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else
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{ // Long message
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Position += 12 + ((MEVT_EVENTPARM(event[2]) + 3) & ~3);
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}
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// Did we use up this buffer?
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if (Position >= Events->dwBytesRecorded)
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{
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Events = Events->lpNext;
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Position = 0;
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if (Callback != NULL)
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{
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Callback(MOM_DONE, CallbackData, 0, 0);
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}
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}
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if (Events == NULL)
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{ // No more events. Just return something to keep the song playing
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// while we wait for more to be submitted.
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return int(Division);
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}
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delay = *(DWORD *)(Events->lpData + Position);
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}
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return delay;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: ServiceStream
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//
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//==========================================================================
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bool TimidityMIDIDevice::ServiceStream (void *buff, int numbytes)
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{
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float *samples = (float *)buff;
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float *samples1;
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int numsamples = numbytes / sizeof(float) / 2;
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bool prev_ended = false;
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bool res = true;
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samples1 = samples;
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memset(buff, 0, numbytes);
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CritSec.Enter();
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while (Events != NULL && numsamples > 0)
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{
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double ticky = NextTickIn;
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int tick_in = int(NextTickIn);
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int samplesleft = MIN(numsamples, tick_in);
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if (samplesleft > 0)
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{
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Renderer->ComputeOutput(samples1, samplesleft);
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assert(NextTickIn == ticky);
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NextTickIn -= samplesleft;
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assert(NextTickIn >= 0);
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numsamples -= samplesleft;
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samples1 += samplesleft * 2;
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}
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if (NextTickIn < 1)
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{
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int next = PlayTick();
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assert(next >= 0);
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if (next == 0)
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{ // end of song
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if (numsamples > 0)
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{
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Renderer->ComputeOutput(samples1, numsamples);
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}
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res = false;
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break;
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}
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else
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{
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NextTickIn += SamplesPerTick * next;
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assert(NextTickIn >= 0);
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}
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}
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}
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if (Events == NULL)
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{
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res = false;
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}
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CritSec.Leave();
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return res;
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: FillStream static
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//
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//==========================================================================
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bool TimidityMIDIDevice::FillStream(SoundStream *stream, void *buff, int len, void *userdata)
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{
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TimidityMIDIDevice *device = (TimidityMIDIDevice *)userdata;
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return device->ServiceStream(buff, len);
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: GetStats
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//
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//==========================================================================
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FString TimidityMIDIDevice::GetStats()
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{
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FString dots;
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FString out;
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int i, used;
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CritSec.Enter();
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for (i = used = 0; i < Renderer->voices; ++i)
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{
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int status = Renderer->voice[i].status;
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if (!(status & Timidity::VOICE_RUNNING))
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{
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dots << TEXTCOLOR_PURPLE".";
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}
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else
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{
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used++;
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if (status & Timidity::VOICE_SUSTAINING)
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{
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dots << TEXTCOLOR_BLUE;
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}
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else if (status & Timidity::VOICE_RELEASING)
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{
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dots << TEXTCOLOR_ORANGE;
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}
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else if (status & Timidity::VOICE_STOPPING)
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{
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dots << TEXTCOLOR_RED;
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}
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else
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{
|
|
dots << TEXTCOLOR_GREEN;
|
|
}
|
|
if (!Renderer->voice[i].eg1.env.bUpdating)
|
|
{
|
|
dots << "+";
|
|
}
|
|
else
|
|
{
|
|
dots << ('0' + Renderer->voice[i].eg1.gf1.stage);
|
|
}
|
|
}
|
|
}
|
|
CritSec.Leave();
|
|
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;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// TimidityWaveWriterMIDIDevice Constructor
|
|
//
|
|
//==========================================================================
|
|
|
|
TimidityWaveWriterMIDIDevice::TimidityWaveWriterMIDIDevice(const char *filename, int rate)
|
|
{
|
|
File = fopen(filename, "wb");
|
|
if (File != NULL)
|
|
{ // Write wave header
|
|
DWORD work[3];
|
|
FmtChunk fmt;
|
|
|
|
work[0] = MAKE_ID('R','I','F','F');
|
|
work[1] = 0; // filled in later
|
|
work[2] = MAKE_ID('W','A','V','E');
|
|
if (3 != fwrite(work, 4, 3, File)) goto fail;
|
|
|
|
fmt.ChunkID = MAKE_ID('f','m','t',' ');
|
|
fmt.ChunkLen = LittleLong(DWORD(sizeof(fmt) - 8));
|
|
fmt.FormatTag = LittleShort(0xFFFE); // WAVE_FORMAT_EXTENSIBLE
|
|
fmt.Channels = LittleShort(2);
|
|
fmt.SamplesPerSec = LittleLong((int)Renderer->rate);
|
|
fmt.AvgBytesPerSec = LittleLong((int)Renderer->rate * 8);
|
|
fmt.BlockAlign = LittleShort(8);
|
|
fmt.BitsPerSample = LittleShort(32);
|
|
fmt.ExtensionSize = LittleShort(2 + 4 + 16);
|
|
fmt.ValidBitsPerSample = LittleShort(32);
|
|
fmt.ChannelMask = LittleLong(3);
|
|
fmt.SubFormatA = LittleLong(0x00000003); // Set subformat to KSDATAFORMAT_SUBTYPE_IEEE_FLOAT
|
|
fmt.SubFormatB = LittleShort(0x0000);
|
|
fmt.SubFormatC = LittleShort(0x0010);
|
|
fmt.SubFormatD[0] = 0x80;
|
|
fmt.SubFormatD[1] = 0x00;
|
|
fmt.SubFormatD[2] = 0x00;
|
|
fmt.SubFormatD[3] = 0xaa;
|
|
fmt.SubFormatD[4] = 0x00;
|
|
fmt.SubFormatD[5] = 0x38;
|
|
fmt.SubFormatD[6] = 0x9b;
|
|
fmt.SubFormatD[7] = 0x71;
|
|
if (1 != fwrite(&fmt, sizeof(fmt), 1, File)) goto fail;
|
|
|
|
work[0] = MAKE_ID('d','a','t','a');
|
|
work[1] = 0; // filled in later
|
|
if (2 != fwrite(work, 4, 2, File)) goto fail;
|
|
|
|
return;
|
|
fail:
|
|
Printf("Failed to write %s: %s\n", filename, strerror(errno));
|
|
fclose(File);
|
|
File = NULL;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// TimidityWaveWriterMIDIDevice Destructor
|
|
//
|
|
//==========================================================================
|
|
|
|
TimidityWaveWriterMIDIDevice::~TimidityWaveWriterMIDIDevice()
|
|
{
|
|
if (File != NULL)
|
|
{
|
|
long pos = ftell(File);
|
|
DWORD size;
|
|
|
|
// data chunk size
|
|
size = LittleLong(DWORD(pos - 8));
|
|
if (0 == fseek(File, 4, SEEK_SET))
|
|
{
|
|
if (1 == fwrite(&size, 4, 1, File))
|
|
{
|
|
size = LittleLong(DWORD(pos - 12 - sizeof(FmtChunk) - 8));
|
|
if (0 == fseek(File, 4 + sizeof(FmtChunk) + 4, SEEK_CUR))
|
|
{
|
|
if (1 == fwrite(&size, 4, 1, File))
|
|
{
|
|
fclose(File);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
Printf("Could not finish writing wave file: %s\n", strerror(errno));
|
|
fclose(File);
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// TimidityWaveWriterMIDIDevice :: Resume
|
|
//
|
|
//==========================================================================
|
|
|
|
int TimidityWaveWriterMIDIDevice::Resume()
|
|
{
|
|
float writebuffer[4096];
|
|
|
|
while (ServiceStream(writebuffer, sizeof(writebuffer)))
|
|
{
|
|
if (fwrite(writebuffer, sizeof(writebuffer), 1, File) != 1)
|
|
{
|
|
Printf("Could not write entire wave file: %s\n", strerror(errno));
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// TimidityWaveWriterMIDIDevice Stop
|
|
//
|
|
//==========================================================================
|
|
|
|
void TimidityWaveWriterMIDIDevice::Stop()
|
|
{
|
|
}
|