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360 lines
10 KiB
C++
360 lines
10 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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// 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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Renderer = NULL;
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Renderer = new Timidity::Renderer((float)SampleRate);
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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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int ret = OpenStream(2, 0, callback, userdata);
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if (ret == 0)
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{
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Renderer->Reset();
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}
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return ret;
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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 :: HandleEvent
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//
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//==========================================================================
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void TimidityMIDIDevice::HandleEvent(int status, int parm1, int parm2)
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{
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Renderer->HandleEvent(status, parm1, parm2);
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: HandleLongEvent
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//
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//==========================================================================
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void TimidityMIDIDevice::HandleLongEvent(const BYTE *data, int len)
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{
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Renderer->HandleLongMessage(data, len);
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}
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//==========================================================================
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//
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// TimidityMIDIDevice :: ComputeOutput
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//
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//==========================================================================
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void TimidityMIDIDevice::ComputeOutput(float *buffer, int len)
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{
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Renderer->ComputeOutput(buffer, 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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{
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dots << TEXTCOLOR_GREEN;
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}
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if (!Renderer->voice[i].eg1.env.bUpdating)
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{
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dots << "+";
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}
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else
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{
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dots << ('0' + Renderer->voice[i].eg1.gf1.stage);
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}
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}
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}
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CritSec.Leave();
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out.Format(TEXTCOLOR_YELLOW"%3d/%3d ", used, Renderer->voices);
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out += dots;
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if (Renderer->cut_notes | Renderer->lost_notes)
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{
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out.AppendFormat(TEXTCOLOR_RED" %d/%d", Renderer->cut_notes, Renderer->lost_notes);
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}
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return out;
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}
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//==========================================================================
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//
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// TimidityWaveWriterMIDIDevice Constructor
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//
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//==========================================================================
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TimidityWaveWriterMIDIDevice::TimidityWaveWriterMIDIDevice(const char *filename, int rate)
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{
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File = fopen(filename, "wb");
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if (File != NULL)
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{ // Write wave header
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DWORD work[3];
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FmtChunk fmt;
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work[0] = MAKE_ID('R','I','F','F');
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work[1] = 0; // filled in later
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work[2] = MAKE_ID('W','A','V','E');
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if (3 != fwrite(work, 4, 3, File)) goto fail;
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fmt.ChunkID = MAKE_ID('f','m','t',' ');
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fmt.ChunkLen = LittleLong(DWORD(sizeof(fmt) - 8));
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fmt.FormatTag = LittleShort(0xFFFE); // WAVE_FORMAT_EXTENSIBLE
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fmt.Channels = LittleShort(2);
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fmt.SamplesPerSec = LittleLong((int)Renderer->rate);
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fmt.AvgBytesPerSec = LittleLong((int)Renderer->rate * 8);
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fmt.BlockAlign = LittleShort(8);
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fmt.BitsPerSample = LittleShort(32);
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fmt.ExtensionSize = LittleShort(2 + 4 + 16);
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fmt.ValidBitsPerSample = LittleShort(32);
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fmt.ChannelMask = LittleLong(3);
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fmt.SubFormatA = LittleLong(0x00000003); // Set subformat to KSDATAFORMAT_SUBTYPE_IEEE_FLOAT
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fmt.SubFormatB = LittleShort(0x0000);
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fmt.SubFormatC = LittleShort(0x0010);
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fmt.SubFormatD[0] = 0x80;
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fmt.SubFormatD[1] = 0x00;
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fmt.SubFormatD[2] = 0x00;
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fmt.SubFormatD[3] = 0xaa;
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fmt.SubFormatD[4] = 0x00;
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fmt.SubFormatD[5] = 0x38;
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fmt.SubFormatD[6] = 0x9b;
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fmt.SubFormatD[7] = 0x71;
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if (1 != fwrite(&fmt, sizeof(fmt), 1, File)) goto fail;
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work[0] = MAKE_ID('d','a','t','a');
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work[1] = 0; // filled in later
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if (2 != fwrite(work, 4, 2, File)) goto fail;
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return;
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fail:
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Printf("Failed to write %s: %s\n", filename, strerror(errno));
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fclose(File);
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File = NULL;
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}
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}
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//==========================================================================
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//
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// TimidityWaveWriterMIDIDevice Destructor
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//
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//==========================================================================
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TimidityWaveWriterMIDIDevice::~TimidityWaveWriterMIDIDevice()
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{
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if (File != NULL)
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{
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long pos = ftell(File);
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DWORD size;
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// data chunk size
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size = LittleLong(DWORD(pos - 8));
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if (0 == fseek(File, 4, SEEK_SET))
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{
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if (1 == fwrite(&size, 4, 1, File))
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{
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size = LittleLong(DWORD(pos - 12 - sizeof(FmtChunk) - 8));
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if (0 == fseek(File, 4 + sizeof(FmtChunk) + 4, SEEK_CUR))
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{
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if (1 == fwrite(&size, 4, 1, File))
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{
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fclose(File);
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return;
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}
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}
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}
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}
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Printf("Could not finish writing wave file: %s\n", strerror(errno));
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fclose(File);
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}
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}
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//==========================================================================
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//
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// TimidityWaveWriterMIDIDevice :: Resume
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//
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//==========================================================================
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int TimidityWaveWriterMIDIDevice::Resume()
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{
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float writebuffer[4096];
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while (ServiceStream(writebuffer, sizeof(writebuffer)))
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{
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if (fwrite(writebuffer, sizeof(writebuffer), 1, File) != 1)
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{
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Printf("Could not write entire wave file: %s\n", strerror(errno));
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return 1;
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}
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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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// TimidityWaveWriterMIDIDevice Stop
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//
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//==========================================================================
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void TimidityWaveWriterMIDIDevice::Stop()
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{
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}
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