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scummvm/sound/mididrv.cpp
Max Horn 2b97c496c2 indent run 
svn-id: r4475
2002-07-07 18:04:03 +00:00

1770 lines
54 KiB
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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001/2002 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*/
/*
* EmuMIDI support by Lionel Ulmer <lionel.ulmer@free.fr> copied from
* AdPlug (http://adplug.sourceforge.net)
* Timidity support by Lionel Ulmer <lionel.ulmer@free.fr>
* QuickTime support by Florent Boudet <flobo@ifrance.com>
* Raw output support by Michael Pearce
* MorphOS support by Ruediger Hanke
* Alsa support by Nicolas Noble <nicolas@nobis-crew.org> copied from
* both the QuickTime support and (vkeybd http://www.alsa-project.org/~iwai/alsa.html)
*/
#include "stdafx.h"
#include "scumm.h"
#include "mididrv.h"
#include "fmopl.h"
#include "mixer.h"
#if defined(WIN32) && !defined(_WIN32_WCE)
/* Windows MIDI driver */
class MidiDriver_WIN:public MidiDriver {
public:
int open(int mode);
void close();
void send(uint32 b);
void pause(bool pause);
void set_stream_callback(void *param, StreamCallback *sc);
private:
struct MyMidiHdr {
MIDIHDR hdr;
};
enum {
NUM_PREPARED_HEADERS = 2,
MIDI_EVENT_SIZE = 64,
BUFFER_SIZE = MIDI_EVENT_SIZE * 12,
};
StreamCallback *_stream_proc;
void *_stream_param;
int _mode;
HMIDIOUT _mo;
HMIDISTRM _ms;
MyMidiHdr *_prepared_headers;
uint16 _time_div;
void unprepare();
void prepare();
void check_error(MMRESULT result);
void fill_all();
uint32 property(int prop, uint32 param);
static void CALLBACK midi_callback(HMIDIOUT hmo, UINT wMsg,
DWORD dwInstance, DWORD dwParam1, DWORD dwParam2);
};
void MidiDriver_WIN::set_stream_callback(void *param, StreamCallback *sc)
{
_stream_param = param;
_stream_proc = sc;
}
void CALLBACK MidiDriver_WIN::midi_callback(HMIDIOUT hmo, UINT wMsg,
DWORD dwInstance, DWORD dwParam1, DWORD dwParam2)
{
switch (wMsg) {
case MM_MOM_DONE:{
MidiDriver_WIN *md = ((MidiDriver_WIN *) dwInstance);
if (md->_mode)
md->fill_all();
break;
}
}
}
int MidiDriver_WIN::open(int mode)
{
if (_mode != 0)
return MERR_ALREADY_OPEN;
_mode = mode;
if (mode == MO_SIMPLE) {
MMRESULT res = midiOutOpen((HMIDIOUT *) & _mo, MIDI_MAPPER, NULL, NULL, 0);
if (res != MMSYSERR_NOERROR)
check_error(res);
} else {
/* streaming mode */
MIDIPROPTIMEDIV mptd;
UINT _midi_device_id = 0;
check_error(midiStreamOpen(&_ms, &_midi_device_id, 1,
(uint32)midi_callback, (uint32)this, CALLBACK_FUNCTION));
prepare();
mptd.cbStruct = sizeof(mptd);
mptd.dwTimeDiv = _time_div;
check_error(midiStreamProperty(_ms, (byte *)&mptd, MIDIPROP_SET | MIDIPROP_TIMEDIV));
fill_all();
}
return 0;
}
void MidiDriver_WIN::fill_all()
{
if (_stream_proc == NULL) {
error("MidiDriver_WIN::fill_all() called, but _stream_proc==NULL");
}
uint i;
MyMidiHdr *mmh = _prepared_headers;
MidiEvent my_evs[64];
for (i = 0; i != NUM_PREPARED_HEADERS; i++, mmh++) {
if (!(mmh->hdr.dwFlags & MHDR_INQUEUE)) {
int num = _stream_proc(_stream_param, my_evs, 64);
int i;
/* end of stream? */
if (num == 0)
break;
MIDIEVENT *ev = (MIDIEVENT *)mmh->hdr.lpData;
MidiEvent *my_ev = my_evs;
for (i = 0; i != num; i++, my_ev++) {
ev->dwStreamID = 0;
ev->dwDeltaTime = my_ev->delta;
switch (my_ev->event >> 24) {
case 0:
ev->dwEvent = my_ev->event;
break;
case ME_TEMPO:
/* change tempo event */
ev->dwEvent = (ME_TEMPO << 24) | (my_ev->event & 0xFFFFFF);
break;
default:
error("Invalid event type passed");
}
/* increase stream pointer by 12 bytes
* (need to be 12 bytes, and sizeof(MIDIEVENT) is 16)
*/
ev = (MIDIEVENT *)((byte *)ev + 12);
}
mmh->hdr.dwBytesRecorded = num * 12;
check_error(midiStreamOut(_ms, &mmh->hdr, sizeof(mmh->hdr)));
}
}
}
void MidiDriver_WIN::prepare()
{
int i;
MyMidiHdr *mmh;
_prepared_headers = (MyMidiHdr *) calloc(sizeof(MyMidiHdr), 2);
for (i = 0, mmh = _prepared_headers; i != NUM_PREPARED_HEADERS; i++, mmh++) {
mmh->hdr.dwBufferLength = BUFFER_SIZE;
mmh->hdr.lpData = (LPSTR) calloc(BUFFER_SIZE, 1);
check_error(midiOutPrepareHeader((HMIDIOUT) _ms, &mmh->hdr, sizeof(mmh->hdr)));
}
}
void MidiDriver_WIN::unprepare()
{
uint i;
MyMidiHdr *mmh = _prepared_headers;
for (i = 0; i != NUM_PREPARED_HEADERS; i++, mmh++) {
check_error(midiOutUnprepareHeader((HMIDIOUT) _ms, &mmh->hdr, sizeof(mmh->hdr)));
free(mmh->hdr.lpData);
mmh->hdr.lpData = NULL;
}
free(_prepared_headers);
}
void MidiDriver_WIN::close()
{
int mode_was = _mode;
_mode = 0;
switch (mode_was) {
case MO_SIMPLE:
check_error(midiOutClose(_mo));
break;
case MO_STREAMING:;
check_error(midiStreamStop(_ms));
check_error(midiOutReset((HMIDIOUT) _ms));
unprepare();
check_error(midiStreamClose(_ms));
break;
}
}
void MidiDriver_WIN::send(uint32 b)
{
union {
DWORD dwData;
BYTE bData[4];
} u;
if (_mode != MO_SIMPLE)
error("MidiDriver_WIN:send called but driver is not in simple mode");
u.bData[3] = (byte)((b & 0xFF000000) >> 24);
u.bData[2] = (byte)((b & 0x00FF0000) >> 16);
u.bData[1] = (byte)((b & 0x0000FF00) >> 8);
u.bData[0] = (byte)(b & 0x000000FF);
//printMidi(u.bData[0], u.bData[1], u.bData[2], u.bData[3]);
check_error(midiOutShortMsg(_mo, u.dwData));
}
void MidiDriver_WIN::pause(bool pause)
{
if (_mode == MO_STREAMING) {
if (pause)
check_error(midiStreamPause(_ms));
else
check_error(midiStreamRestart(_ms));
}
}
void MidiDriver_WIN::check_error(MMRESULT result)
{
char buf[200];
if (result != MMSYSERR_NOERROR) {
midiOutGetErrorText(result, buf, 200);
error("MM System Error '%s'", buf);
}
}
uint32 MidiDriver_WIN::property(int prop, uint32 param)
{
switch (prop) {
/* 16-bit time division according to standard midi specification */
case PROP_TIMEDIV:
_time_div = (uint16)param;
return 1;
}
return 0;
}
MidiDriver *MidiDriver_WIN_create()
{
return new MidiDriver_WIN();
}
#endif // WIN32
#ifdef __MORPHOS__
#include <exec/types.h>
#include <devices/amidi.h>
#include <clib/alib_protos.h>
#include <proto/exec.h>
extern struct IOMidiRequest *ScummMidiRequest;
/* MorphOS MIDI driver */
class MidiDriver_AMIDI:public MidiDriver {
public:
int open(int mode);
void close();
void send(uint32 b);
void pause(bool pause);
void set_stream_callback(void *param, StreamCallback *sc);
private:
StreamCallback *_stream_proc;
void *_stream_param;
int _mode;
};
void MidiDriver_AMIDI::set_stream_callback(void *param, StreamCallback *sc)
{
_stream_param = param;
_stream_proc = sc;
}
int MidiDriver_AMIDI::open(int mode)
{
_mode = mode;
return 0;
}
void MidiDriver_AMIDI::close()
{
_mode = 0;
}
void MidiDriver_AMIDI::send(uint32 b)
{
if (_mode != MO_SIMPLE)
error("MidiDriver_AMIDI:send called but driver is not in simple mode");
if (ScummMidiRequest) {
ULONG midi_data = b; // you never know about an int's size ;-)
ScummMidiRequest->amr_Std.io_Command = CMD_WRITE;
ScummMidiRequest->amr_Std.io_Data = &midi_data;
ScummMidiRequest->amr_Std.io_Length = 4;
DoIO((struct IORequest *)ScummMidiRequest);
}
}
void MidiDriver_AMIDI::pause(bool pause)
{
if (_mode == MO_STREAMING) {
}
}
MidiDriver *MidiDriver_AMIDI_create()
{
return new MidiDriver_AMIDI();
}
#endif // __MORPHOS__
#if defined(UNIX) && !defined(__BEOS__)
#define SEQ_MIDIPUTC 5
#define SPECIAL_CHANNEL 9
class MidiDriver_SEQ:public MidiDriver {
public:
MidiDriver_SEQ();
int open(int mode);
void close();
void send(uint32 b);
void pause(bool pause);
void set_stream_callback(void *param, StreamCallback *sc);
private:
StreamCallback *_stream_proc;
void *_stream_param;
int _mode;
int device, _device_num;
};
MidiDriver_SEQ::MidiDriver_SEQ()
{
_mode = 0;
device = 0;
_device_num = 0;
}
int MidiDriver_SEQ::open(int mode)
{
if (_mode != 0)
return MERR_ALREADY_OPEN;
device = 0;
_mode = mode;
if (mode != MO_SIMPLE)
return MERR_STREAMING_NOT_AVAILABLE;
char *device_name = getenv("SCUMMVM_MIDI");
if (device_name != NULL) {
device = (::open((device_name), O_RDWR, 0));
} else {
warning("You need to set-up the SCUMMVM_MIDI environment variable properly (see readme.txt) ");
}
if ((device_name == NULL) || (device < 0)) {
if (device_name == NULL)
warning("Opening /dev/null (no music will be heard) ");
else
warning("Cannot open rawmidi device %s - using /dev/null (no music will be heard) ",
device_name);
device = (::open(("/dev/null"), O_RDWR, 0));
if (device < 0)
error("Cannot open /dev/null to dump midi output");
}
if (getenv("SCUMMVM_MIDIPORT"))
_device_num = atoi(getenv("SCUMMVM_MIDIPORT"));
return 0;
}
void MidiDriver_SEQ::close()
{
::close(device);
_mode = 0;
}
void MidiDriver_SEQ::send(uint32 b)
{
unsigned char buf[256];
int position = 0;
switch (b & 0xF0) {
case 0x80:
case 0x90:
case 0xA0:
case 0xB0:
case 0xE0:
buf[position++] = SEQ_MIDIPUTC;
buf[position++] = (unsigned char)b;
buf[position++] = _device_num;
buf[position++] = 0;
buf[position++] = SEQ_MIDIPUTC;
buf[position++] = (unsigned char)((b >> 8) & 0x7F);
buf[position++] = _device_num;
buf[position++] = 0;
buf[position++] = SEQ_MIDIPUTC;
buf[position++] = (unsigned char)((b >> 16) & 0x7F);
buf[position++] = _device_num;
buf[position++] = 0;
break;
case 0xC0:
case 0xD0:
buf[position++] = SEQ_MIDIPUTC;
buf[position++] = (unsigned char)b;
buf[position++] = _device_num;
buf[position++] = 0;
buf[position++] = SEQ_MIDIPUTC;
buf[position++] = (unsigned char)((b >> 8) & 0x7F);
buf[position++] = _device_num;
buf[position++] = 0;
break;
default:
fprintf(stderr, "Unknown : %08x\n", (int)b);
break;
}
write(device, buf, position);
}
void MidiDriver_SEQ::pause(bool pause)
{
if (_mode == MO_STREAMING) {
}
}
void MidiDriver_SEQ::set_stream_callback(void *param, StreamCallback *sc)
{
_stream_param = param;
_stream_proc = sc;
}
MidiDriver *MidiDriver_SEQ_create()
{
return new MidiDriver_SEQ();
}
#endif
#if defined(__APPLE__) || defined(macintosh)
// FIXME - this is for Mac OS X and Mac OS 9. It's not really possible
// to check for these *cleanly* without a configure script, though..
#if defined(MACOSX)
// On MacOSX, these are in a frameworks!
#include <QuickTime/QuickTimeComponents.h>
#include <QuickTime/QuickTimeMusic.h>
#else
#include <QuickTimeComponents.h>
#include <QuickTimeMusic.h>
#endif
/* QuickTime MIDI driver */
class MidiDriver_QT:public MidiDriver {
public:
int open(int mode);
void close();
void send(uint32 b);
void pause(bool pause);
void set_stream_callback(void *param, StreamCallback *sc);
private:
NoteAllocator qtNoteAllocator;
NoteChannel qtNoteChannel[16];
NoteRequest simpleNoteRequest;
StreamCallback *_stream_proc;
void *_stream_param;
int _mode;
};
void MidiDriver_QT::set_stream_callback(void *param, StreamCallback *sc)
{
_stream_param = param;
_stream_proc = sc;
}
int MidiDriver_QT::open(int mode)
{
ComponentResult qtErr = noErr;
int i;
qtNoteAllocator = NULL;
if (mode == MO_STREAMING)
return MERR_STREAMING_NOT_AVAILABLE;
_mode = mode;
for (i = 0; i < 15; i++)
qtNoteChannel[i] = NULL;
qtNoteAllocator = OpenDefaultComponent(kNoteAllocatorComponentType, 0);
if (qtNoteAllocator == NULL)
goto bail;
simpleNoteRequest.info.flags = 0;
*(short *)(&simpleNoteRequest.info.polyphony) = EndianS16_NtoB(15); // simultaneous tones
*(Fixed *) (&simpleNoteRequest.info.typicalPolyphony) = EndianU32_NtoB(0x00010000);
qtErr = NAStuffToneDescription(qtNoteAllocator, 1, &simpleNoteRequest.tone);
if (qtErr != noErr)
goto bail;
for (i = 0; i < 15; i++) {
qtErr = NANewNoteChannel(qtNoteAllocator, &simpleNoteRequest, &(qtNoteChannel[i]));
if ((qtErr != noErr) || (qtNoteChannel == NULL))
goto bail;
}
return 0;
bail:
error("Init QT failed %x %x %d\n", (int)qtNoteAllocator, (int)qtNoteChannel, (int)qtErr);
for (i = 0; i < 15; i++) {
if (qtNoteChannel[i] != NULL)
NADisposeNoteChannel(qtNoteAllocator, qtNoteChannel[i]);
qtNoteChannel[i] = NULL;
}
if (qtNoteAllocator != NULL) {
CloseComponent(qtNoteAllocator);
qtNoteAllocator = NULL;
}
return MERR_DEVICE_NOT_AVAILABLE;
}
void MidiDriver_QT::close()
{
_mode = 0;
for (int i = 0; i < 15; i++) {
if (qtNoteChannel[i] != NULL)
NADisposeNoteChannel(qtNoteAllocator, qtNoteChannel[i]);
qtNoteChannel[i] = NULL;
}
if (qtNoteAllocator != NULL) {
CloseComponent(qtNoteAllocator);
qtNoteAllocator = NULL;
}
}
void MidiDriver_QT::send(uint32 b)
{
if (_mode != MO_SIMPLE)
error("MidiDriver_QT:send called but driver is not in simple mode");
MusicMIDIPacket midPacket;
unsigned char *midiCmd = midPacket.data;
midPacket.length = 3;
midiCmd[3] = (b & 0xFF000000) >> 24;
midiCmd[2] = (b & 0x00FF0000) >> 16;
midiCmd[1] = (b & 0x0000FF00) >> 8;
midiCmd[0] = (b & 0x000000FF);
unsigned char chanID = midiCmd[0] & 0x0F;
switch (midiCmd[0] & 0xF0) {
case 0x80: // Note off
NAPlayNote(qtNoteAllocator, qtNoteChannel[chanID], midiCmd[1], 0);
break;
case 0x90: // Note on
NAPlayNote(qtNoteAllocator, qtNoteChannel[chanID], midiCmd[1], midiCmd[2]);
break;
case 0xB0: // Effect
switch (midiCmd[1]) {
case 0x01: // Modulation
NASetController(qtNoteAllocator, qtNoteChannel[chanID],
kControllerModulationWheel, midiCmd[2] << 8);
break;
case 0x07: // Volume
NASetController(qtNoteAllocator, qtNoteChannel[chanID], kControllerVolume, midiCmd[2] * 300);
break;
case 0x0A: // Pan
NASetController(qtNoteAllocator, qtNoteChannel[chanID], kControllerPan,
(midiCmd[2] << 1) + 0xFF);
break;
case 0x40: // Sustain on/off
NASetController(qtNoteAllocator, qtNoteChannel[chanID], kControllerSustain, midiCmd[2]);
break;
case 0x5b: // ext effect depth
NASetController(qtNoteAllocator, qtNoteChannel[chanID], kControllerReverb, midiCmd[2] << 8);
break;
case 0x5d: // chorus depth
NASetController(qtNoteAllocator, qtNoteChannel[chanID], kControllerChorus, midiCmd[2] << 8);
break;
case 0x7b: // mode message all notes off
for (int i = 0; i < 128; i++)
NAPlayNote(qtNoteAllocator, qtNoteChannel[chanID], i, 0);
break;
default:
error("Unknown MIDI effect: %08x\n", (int)b);
break;
}
break;
case 0xC0: // Program change
NASetInstrumentNumber(qtNoteAllocator, qtNoteChannel[chanID], midiCmd[1] + 1);
break;
case 0xE0:{ // Pitch bend
long theBend = ((((long)midiCmd[1] + (long)(midiCmd[2] << 8))) - 0x4000) / 4;
NASetController(qtNoteAllocator, qtNoteChannel[chanID], kControllerPitchBend, theBend);
}
break;
default:
error("Unknown Command: %08x\n", (int)b);
NASendMIDI(qtNoteAllocator, qtNoteChannel[chanID], &midPacket);
break;
}
}
void MidiDriver_QT::pause(bool)
{
}
MidiDriver *MidiDriver_QT_create()
{
return new MidiDriver_QT();
}
#endif // __APPLE__ || macintosh
#ifdef __APPLE__
#include <AudioUnit/AudioUnit.h>
/* CoreAudio MIDI driver */
/* Based on code by Benjamin W. Zale */
class MidiDriver_CORE:public MidiDriver {
public:
MidiDriver_CORE():au_MusicDevice(NULL), au_output(NULL) {
} int open(int mode);
void close();
void send(uint32 b);
void pause(bool pause);
void set_stream_callback(void *param, StreamCallback *sc);
private:
AudioUnit au_MusicDevice;
AudioUnit au_output;
StreamCallback *_stream_proc;
void *_stream_param;
int _mode;
};
void MidiDriver_CORE::set_stream_callback(void *param, StreamCallback *sc)
{
_stream_param = param;
_stream_proc = sc;
}
int MidiDriver_CORE::open(int mode)
{
if (au_output != NULL)
return MERR_ALREADY_OPEN;
_mode = mode;
int err;
struct AudioUnitConnection auconnect;
ComponentDescription compdesc;
Component compid;
// Open the Music Device
compdesc.componentType = kAudioUnitComponentType;
compdesc.componentSubType = kAudioUnitSubType_MusicDevice;
compdesc.componentManufacturer = kAudioUnitID_DLSSynth;
compdesc.componentFlags = 0;
compdesc.componentFlagsMask = 0;
compid = FindNextComponent(NULL, &compdesc);
au_MusicDevice = (AudioUnit) OpenComponent(compid);
// open the output unit
au_output = (AudioUnit) OpenDefaultComponent(kAudioUnitComponentType, kAudioUnitSubType_Output);
// connect the units
auconnect.sourceAudioUnit = au_MusicDevice;
auconnect.sourceOutputNumber = 0;
auconnect.destInputNumber = 0;
err =
AudioUnitSetProperty(au_output, kAudioUnitProperty_MakeConnection, kAudioUnitScope_Input, 0,
(void *)&auconnect, sizeof(struct AudioUnitConnection));
// initialize the units
AudioUnitInitialize(au_MusicDevice);
AudioUnitInitialize(au_output);
// start the output
AudioOutputUnitStart(au_output);
return 0;
}
void MidiDriver_CORE::close()
{
// Stop the output
AudioOutputUnitStop(au_output);
// Cleanup
CloseComponent(au_output);
CloseComponent(au_MusicDevice);
_mode = 0;
}
void MidiDriver_CORE::send(uint32 b)
{
if (_mode != MO_SIMPLE)
error("MidiDriver_CORE:send called but driver is not in simple mode");
unsigned char first_byte, seccond_byte, status_byte;
status_byte = (b & 0x000000FF);
first_byte = (b & 0x0000FF00) >> 8;
seccond_byte = (b & 0x00FF0000) >> 16;
MusicDeviceMIDIEvent(au_MusicDevice, status_byte, first_byte, seccond_byte, 0);
}
void MidiDriver_CORE::pause(bool)
{
}
MidiDriver *MidiDriver_CORE_create()
{
return new MidiDriver_CORE();
}
#endif // __APPLE__
/* NULL driver */
class MidiDriver_NULL:public MidiDriver {
public:
int open(int mode);
void close();
void send(uint32 b);
void pause(bool pause);
void set_stream_callback(void *param, StreamCallback *sc);
private:
};
int MidiDriver_NULL::open(int mode)
{
warning("Music not enabled - MIDI support selected with no MIDI driver available. Try Adlib");
return 0;
}
void MidiDriver_NULL::close()
{
}
void MidiDriver_NULL::send(uint32 b)
{
}
void MidiDriver_NULL::pause(bool pause)
{
}
void MidiDriver_NULL::set_stream_callback(void *param, StreamCallback *sc)
{
}
MidiDriver *MidiDriver_NULL_create()
{
return new MidiDriver_NULL();
}
/* Default (empty) property method */
uint32 MidiDriver::property(int prop, uint32 param)
{
return 0;
}
/* retrieve a string representation of an error code */
const char *MidiDriver::get_error_name(int error_code)
{
static const char *const midi_errors[] = {
"No error",
"Cannot connect",
"Streaming not available",
"Device not available",
"Driver already open"
};
if ((uint) error_code >= ARRAYSIZE(midi_errors))
return "Unknown Error";
return midi_errors[error_code];
}
/* This is the internal emulated MIDI driver using the included OPL2 sound chip
* FM instrument definitions below borrowed from the Allegro library by
* Phil Hassey, <philhassey@hotmail.com> (www.imitationpickles.org)
*/
static unsigned char midi_fm_instruments_table[128][11] = {
/* This set of GM instrument patches was provided by Jorrit Rouwe...
*/
{0x21, 0x21, 0x8f, 0x0c, 0xf2, 0xf2, 0x45, 0x76, 0x00, 0x00, 0x08}, /* Acoustic Grand */
{0x31, 0x21, 0x4b, 0x09, 0xf2, 0xf2, 0x54, 0x56, 0x00, 0x00, 0x08}, /* Bright Acoustic */
{0x31, 0x21, 0x49, 0x09, 0xf2, 0xf2, 0x55, 0x76, 0x00, 0x00, 0x08}, /* Electric Grand */
{0xb1, 0x61, 0x0e, 0x09, 0xf2, 0xf3, 0x3b, 0x0b, 0x00, 0x00, 0x06}, /* Honky-Tonk */
{0x01, 0x21, 0x57, 0x09, 0xf1, 0xf1, 0x38, 0x28, 0x00, 0x00, 0x00}, /* Electric Piano 1 */
{0x01, 0x21, 0x93, 0x09, 0xf1, 0xf1, 0x38, 0x28, 0x00, 0x00, 0x00}, /* Electric Piano 2 */
{0x21, 0x36, 0x80, 0x17, 0xa2, 0xf1, 0x01, 0xd5, 0x00, 0x00, 0x08}, /* Harpsichord */
{0x01, 0x01, 0x92, 0x09, 0xc2, 0xc2, 0xa8, 0x58, 0x00, 0x00, 0x0a}, /* Clav */
{0x0c, 0x81, 0x5c, 0x09, 0xf6, 0xf3, 0x54, 0xb5, 0x00, 0x00, 0x00}, /* Celesta */
{0x07, 0x11, 0x97, 0x89, 0xf6, 0xf5, 0x32, 0x11, 0x00, 0x00, 0x02}, /* Glockenspiel */
{0x17, 0x01, 0x21, 0x09, 0x56, 0xf6, 0x04, 0x04, 0x00, 0x00, 0x02}, /* Music Box */
{0x18, 0x81, 0x62, 0x09, 0xf3, 0xf2, 0xe6, 0xf6, 0x00, 0x00, 0x00}, /* Vibraphone */
{0x18, 0x21, 0x23, 0x09, 0xf7, 0xe5, 0x55, 0xd8, 0x00, 0x00, 0x00}, /* Marimba */
{0x15, 0x01, 0x91, 0x09, 0xf6, 0xf6, 0xa6, 0xe6, 0x00, 0x00, 0x04}, /* Xylophone */
{0x45, 0x81, 0x59, 0x89, 0xd3, 0xa3, 0x82, 0xe3, 0x00, 0x00, 0x0c}, /* Tubular Bells */
{0x03, 0x81, 0x49, 0x89, 0x74, 0xb3, 0x55, 0x05, 0x01, 0x00, 0x04}, /* Dulcimer */
{0x71, 0x31, 0x92, 0x09, 0xf6, 0xf1, 0x14, 0x07, 0x00, 0x00, 0x02}, /* Drawbar Organ */
{0x72, 0x30, 0x14, 0x09, 0xc7, 0xc7, 0x58, 0x08, 0x00, 0x00, 0x02}, /* Percussive Organ */
{0x70, 0xb1, 0x44, 0x09, 0xaa, 0x8a, 0x18, 0x08, 0x00, 0x00, 0x04}, /* Rock Organ */
{0x23, 0xb1, 0x93, 0x09, 0x97, 0x55, 0x23, 0x14, 0x01, 0x00, 0x04}, /* Church Organ */
{0x61, 0xb1, 0x13, 0x89, 0x97, 0x55, 0x04, 0x04, 0x01, 0x00, 0x00}, /* Reed Organ */
{0x24, 0xb1, 0x48, 0x09, 0x98, 0x46, 0x2a, 0x1a, 0x01, 0x00, 0x0c}, /* Accoridan */
{0x61, 0x21, 0x13, 0x09, 0x91, 0x61, 0x06, 0x07, 0x01, 0x00, 0x0a}, /* Harmonica */
{0x21, 0xa1, 0x13, 0x92, 0x71, 0x61, 0x06, 0x07, 0x00, 0x00, 0x06}, /* Tango Accordian */
{0x02, 0x41, 0x9c, 0x89, 0xf3, 0xf3, 0x94, 0xc8, 0x01, 0x00, 0x0c}, /* Acoustic Guitar(nylon) */
{0x03, 0x11, 0x54, 0x09, 0xf3, 0xf1, 0x9a, 0xe7, 0x01, 0x00, 0x0c}, /* Acoustic Guitar(steel) */
{0x23, 0x21, 0x5f, 0x09, 0xf1, 0xf2, 0x3a, 0xf8, 0x00, 0x00, 0x00}, /* Electric Guitar(jazz) */
{0x03, 0x21, 0x87, 0x89, 0xf6, 0xf3, 0x22, 0xf8, 0x01, 0x00, 0x06}, /* Electric Guitar(clean) */
{0x03, 0x21, 0x47, 0x09, 0xf9, 0xf6, 0x54, 0x3a, 0x00, 0x00, 0x00}, /* Electric Guitar(muted) */
{0x23, 0x21, 0x4a, 0x0e, 0x91, 0x84, 0x41, 0x19, 0x01, 0x00, 0x08}, /* Overdriven Guitar */
{0x23, 0x21, 0x4a, 0x09, 0x95, 0x94, 0x19, 0x19, 0x01, 0x00, 0x08}, /* Distortion Guitar */
{0x09, 0x84, 0xa1, 0x89, 0x20, 0xd1, 0x4f, 0xf8, 0x00, 0x00, 0x08}, /* Guitar Harmonics */
{0x21, 0xa2, 0x1e, 0x09, 0x94, 0xc3, 0x06, 0xa6, 0x00, 0x00, 0x02}, /* Acoustic Bass */
{0x31, 0x31, 0x12, 0x09, 0xf1, 0xf1, 0x28, 0x18, 0x00, 0x00, 0x0a}, /* Electric Bass(finger) */
{0x31, 0x31, 0x8d, 0x09, 0xf1, 0xf1, 0xe8, 0x78, 0x00, 0x00, 0x0a}, /* Electric Bass(pick) */
{0x31, 0x32, 0x5b, 0x09, 0x51, 0x71, 0x28, 0x48, 0x00, 0x00, 0x0c}, /* Fretless Bass */
{0x01, 0x21, 0x8b, 0x49, 0xa1, 0xf2, 0x9a, 0xdf, 0x00, 0x00, 0x08}, /* Slap Bass 1 */
{0x21, 0x21, 0x8b, 0x11, 0xa2, 0xa1, 0x16, 0xdf, 0x00, 0x00, 0x08}, /* Slap Bass 2 */
{0x31, 0x31, 0x8b, 0x09, 0xf4, 0xf1, 0xe8, 0x78, 0x00, 0x00, 0x0a}, /* Synth Bass 1 */
{0x31, 0x31, 0x12, 0x09, 0xf1, 0xf1, 0x28, 0x18, 0x00, 0x00, 0x0a}, /* Synth Bass 2 */
{0x31, 0x21, 0x15, 0x09, 0xdd, 0x56, 0x13, 0x26, 0x01, 0x00, 0x08}, /* Violin */
{0x31, 0x21, 0x16, 0x09, 0xdd, 0x66, 0x13, 0x06, 0x01, 0x00, 0x08}, /* Viola */
{0x71, 0x31, 0x49, 0x09, 0xd1, 0x61, 0x1c, 0x0c, 0x01, 0x00, 0x08}, /* Cello */
{0x21, 0x23, 0x4d, 0x89, 0x71, 0x72, 0x12, 0x06, 0x01, 0x00, 0x02}, /* Contrabass */
{0xf1, 0xe1, 0x40, 0x09, 0xf1, 0x6f, 0x21, 0x16, 0x01, 0x00, 0x02}, /* Tremolo Strings */
{0x02, 0x01, 0x1a, 0x89, 0xf5, 0x85, 0x75, 0x35, 0x01, 0x00, 0x00}, /* Pizzicato Strings */
{0x02, 0x01, 0x1d, 0x89, 0xf5, 0xf3, 0x75, 0xf4, 0x01, 0x00, 0x00}, /* Orchestral Strings */
{0x10, 0x11, 0x41, 0x09, 0xf5, 0xf2, 0x05, 0xc3, 0x01, 0x00, 0x02}, /* Timpani */
{0x21, 0xa2, 0x9b, 0x0a, 0xb1, 0x72, 0x25, 0x08, 0x01, 0x00, 0x0e}, /* String Ensemble 1 */
{0xa1, 0x21, 0x98, 0x09, 0x7f, 0x3f, 0x03, 0x07, 0x01, 0x01, 0x00}, /* String Ensemble 2 */
{0xa1, 0x61, 0x93, 0x09, 0xc1, 0x4f, 0x12, 0x05, 0x00, 0x00, 0x0a}, /* SynthStrings 1 */
{0x21, 0x61, 0x18, 0x09, 0xc1, 0x4f, 0x22, 0x05, 0x00, 0x00, 0x0c}, /* SynthStrings 2 */
{0x31, 0x72, 0x5b, 0x8c, 0xf4, 0x8a, 0x15, 0x05, 0x00, 0x00, 0x00}, /* Choir Aahs */
{0xa1, 0x61, 0x90, 0x09, 0x74, 0x71, 0x39, 0x67, 0x00, 0x00, 0x00}, /* Voice Oohs */
{0x71, 0x72, 0x57, 0x09, 0x54, 0x7a, 0x05, 0x05, 0x00, 0x00, 0x0c}, /* Synth Voice */
{0x90, 0x41, 0x00, 0x09, 0x54, 0xa5, 0x63, 0x45, 0x00, 0x00, 0x08}, /* Orchestra Hit */
{0x21, 0x21, 0x92, 0x0a, 0x85, 0x8f, 0x17, 0x09, 0x00, 0x00, 0x0c}, /* Trumpet */
{0x21, 0x21, 0x94, 0x0e, 0x75, 0x8f, 0x17, 0x09, 0x00, 0x00, 0x0c}, /* Trombone */
{0x21, 0x61, 0x94, 0x09, 0x76, 0x82, 0x15, 0x37, 0x00, 0x00, 0x0c}, /* Tuba */
{0x31, 0x21, 0x43, 0x09, 0x9e, 0x62, 0x17, 0x2c, 0x01, 0x01, 0x02}, /* Muted Trumpet */
{0x21, 0x21, 0x9b, 0x09, 0x61, 0x7f, 0x6a, 0x0a, 0x00, 0x00, 0x02}, /* French Horn */
{0x61, 0x22, 0x8a, 0x0f, 0x75, 0x74, 0x1f, 0x0f, 0x00, 0x00, 0x08}, /* Brass Section */
{0xa1, 0x21, 0x86, 0x8c, 0x72, 0x71, 0x55, 0x18, 0x01, 0x00, 0x00}, /* SynthBrass 1 */
{0x21, 0x21, 0x4d, 0x09, 0x54, 0xa6, 0x3c, 0x1c, 0x00, 0x00, 0x08}, /* SynthBrass 2 */
{0x31, 0x61, 0x8f, 0x09, 0x93, 0x72, 0x02, 0x0b, 0x01, 0x00, 0x08}, /* Soprano Sax */
{0x31, 0x61, 0x8e, 0x09, 0x93, 0x72, 0x03, 0x09, 0x01, 0x00, 0x08}, /* Alto Sax */
{0x31, 0x61, 0x91, 0x09, 0x93, 0x82, 0x03, 0x09, 0x01, 0x00, 0x0a}, /* Tenor Sax */
{0x31, 0x61, 0x8e, 0x09, 0x93, 0x72, 0x0f, 0x0f, 0x01, 0x00, 0x0a}, /* Baritone Sax */
{0x21, 0x21, 0x4b, 0x09, 0xaa, 0x8f, 0x16, 0x0a, 0x01, 0x00, 0x08}, /* Oboe */
{0x31, 0x21, 0x90, 0x09, 0x7e, 0x8b, 0x17, 0x0c, 0x01, 0x01, 0x06}, /* English Horn */
{0x31, 0x32, 0x81, 0x09, 0x75, 0x61, 0x19, 0x19, 0x01, 0x00, 0x00}, /* Bassoon */
{0x32, 0x21, 0x90, 0x09, 0x9b, 0x72, 0x21, 0x17, 0x00, 0x00, 0x04}, /* Clarinet */
{0xe1, 0xe1, 0x1f, 0x09, 0x85, 0x65, 0x5f, 0x1a, 0x00, 0x00, 0x00}, /* Piccolo */
{0xe1, 0xe1, 0x46, 0x09, 0x88, 0x65, 0x5f, 0x1a, 0x00, 0x00, 0x00}, /* Flute */
{0xa1, 0x21, 0x9c, 0x09, 0x75, 0x75, 0x1f, 0x0a, 0x00, 0x00, 0x02}, /* Recorder */
{0x31, 0x21, 0x8b, 0x09, 0x84, 0x65, 0x58, 0x1a, 0x00, 0x00, 0x00}, /* Pan Flute */
{0xe1, 0xa1, 0x4c, 0x09, 0x66, 0x65, 0x56, 0x26, 0x00, 0x00, 0x00}, /* Blown Bottle */
{0x62, 0xa1, 0xcb, 0x09, 0x76, 0x55, 0x46, 0x36, 0x00, 0x00, 0x00}, /* Skakuhachi */
{0x62, 0xa1, 0xa2, 0x09, 0x57, 0x56, 0x07, 0x07, 0x00, 0x00, 0x0b}, /* Whistle */
{0x62, 0xa1, 0x9c, 0x09, 0x77, 0x76, 0x07, 0x07, 0x00, 0x00, 0x0b}, /* Ocarina */
{0x22, 0x21, 0x59, 0x09, 0xff, 0xff, 0x03, 0x0f, 0x02, 0x00, 0x00}, /* Lead 1 (square) */
{0x21, 0x21, 0x0e, 0x09, 0xff, 0xff, 0x0f, 0x0f, 0x01, 0x01, 0x00}, /* Lead 2 (sawtooth) */
{0x22, 0x21, 0x46, 0x89, 0x86, 0x64, 0x55, 0x18, 0x00, 0x00, 0x00}, /* Lead 3 (calliope) */
{0x21, 0xa1, 0x45, 0x09, 0x66, 0x96, 0x12, 0x0a, 0x00, 0x00, 0x00}, /* Lead 4 (chiff) */
{0x21, 0x22, 0x8b, 0x09, 0x92, 0x91, 0x2a, 0x2a, 0x01, 0x00, 0x00}, /* Lead 5 (charang) */
{0xa2, 0x61, 0x9e, 0x49, 0xdf, 0x6f, 0x05, 0x07, 0x00, 0x00, 0x02}, /* Lead 6 (voice) */
{0x20, 0x60, 0x1a, 0x09, 0xef, 0x8f, 0x01, 0x06, 0x00, 0x02, 0x00}, /* Lead 7 (fifths) */
{0x21, 0x21, 0x8f, 0x86, 0xf1, 0xf4, 0x29, 0x09, 0x00, 0x00, 0x0a}, /* Lead 8 (bass+lead) */
{0x77, 0xa1, 0xa5, 0x09, 0x53, 0xa0, 0x94, 0x05, 0x00, 0x00, 0x02}, /* Pad 1 (new age) */
{0x61, 0xb1, 0x1f, 0x89, 0xa8, 0x25, 0x11, 0x03, 0x00, 0x00, 0x0a}, /* Pad 2 (warm) */
{0x61, 0x61, 0x17, 0x09, 0x91, 0x55, 0x34, 0x16, 0x00, 0x00, 0x0c}, /* Pad 3 (polysynth) */
{0x71, 0x72, 0x5d, 0x09, 0x54, 0x6a, 0x01, 0x03, 0x00, 0x00, 0x00}, /* Pad 4 (choir) */
{0x21, 0xa2, 0x97, 0x09, 0x21, 0x42, 0x43, 0x35, 0x00, 0x00, 0x08}, /* Pad 5 (bowed) */
{0xa1, 0x21, 0x1c, 0x09, 0xa1, 0x31, 0x77, 0x47, 0x01, 0x01, 0x00}, /* Pad 6 (metallic) */
{0x21, 0x61, 0x89, 0x0c, 0x11, 0x42, 0x33, 0x25, 0x00, 0x00, 0x0a}, /* Pad 7 (halo) */
{0xa1, 0x21, 0x15, 0x09, 0x11, 0xcf, 0x47, 0x07, 0x01, 0x00, 0x00}, /* Pad 8 (sweep) */
{0x3a, 0x51, 0xce, 0x09, 0xf8, 0x86, 0xf6, 0x02, 0x00, 0x00, 0x02}, /* FX 1 (rain) */
{0x21, 0x21, 0x15, 0x09, 0x21, 0x41, 0x23, 0x13, 0x01, 0x00, 0x00}, /* FX 2 (soundtrack) */
{0x06, 0x01, 0x5b, 0x09, 0x74, 0xa5, 0x95, 0x72, 0x00, 0x00, 0x00}, /* FX 3 (crystal) */
{0x22, 0x61, 0x92, 0x8c, 0xb1, 0xf2, 0x81, 0x26, 0x00, 0x00, 0x0c}, /* FX 4 (atmosphere) */
{0x41, 0x42, 0x4d, 0x09, 0xf1, 0xf2, 0x51, 0xf5, 0x01, 0x00, 0x00}, /* FX 5 (brightness) */
{0x61, 0xa3, 0x94, 0x89, 0x11, 0x11, 0x51, 0x13, 0x01, 0x00, 0x06}, /* FX 6 (goblins) */
{0x61, 0xa1, 0x8c, 0x89, 0x11, 0x1d, 0x31, 0x03, 0x00, 0x00, 0x06}, /* FX 7 (echoes) */
{0xa4, 0x61, 0x4c, 0x09, 0xf3, 0x81, 0x73, 0x23, 0x01, 0x00, 0x04}, /* FX 8 (sci-fi) */
{0x02, 0x07, 0x85, 0x0c, 0xd2, 0xf2, 0x53, 0xf6, 0x00, 0x01, 0x00}, /* Sitar */
{0x11, 0x13, 0x0c, 0x89, 0xa3, 0xa2, 0x11, 0xe5, 0x01, 0x00, 0x00}, /* Banjo */
{0x11, 0x11, 0x06, 0x09, 0xf6, 0xf2, 0x41, 0xe6, 0x01, 0x02, 0x04}, /* Shamisen */
{0x93, 0x91, 0x91, 0x09, 0xd4, 0xeb, 0x32, 0x11, 0x00, 0x01, 0x08}, /* Koto */
{0x04, 0x01, 0x4f, 0x09, 0xfa, 0xc2, 0x56, 0x05, 0x00, 0x00, 0x0c}, /* Kalimba */
{0x21, 0x22, 0x49, 0x09, 0x7c, 0x6f, 0x20, 0x0c, 0x00, 0x01, 0x06}, /* Bagpipe */
{0x31, 0x21, 0x85, 0x09, 0xdd, 0x56, 0x33, 0x16, 0x01, 0x00, 0x0a}, /* Fiddle */
{0x20, 0x21, 0x04, 0x8a, 0xda, 0x8f, 0x05, 0x0b, 0x02, 0x00, 0x06}, /* Shanai */
{0x05, 0x03, 0x6a, 0x89, 0xf1, 0xc3, 0xe5, 0xe5, 0x00, 0x00, 0x06}, /* Tinkle Bell */
{0x07, 0x02, 0x15, 0x09, 0xec, 0xf8, 0x26, 0x16, 0x00, 0x00, 0x0a}, /* Agogo */
{0x05, 0x01, 0x9d, 0x09, 0x67, 0xdf, 0x35, 0x05, 0x00, 0x00, 0x08}, /* Steel Drums */
{0x18, 0x12, 0x96, 0x09, 0xfa, 0xf8, 0x28, 0xe5, 0x00, 0x00, 0x0a}, /* Woodblock */
{0x10, 0x00, 0x86, 0x0c, 0xa8, 0xfa, 0x07, 0x03, 0x00, 0x00, 0x06}, /* Taiko Drum */
{0x11, 0x10, 0x41, 0x0c, 0xf8, 0xf3, 0x47, 0x03, 0x02, 0x00, 0x04}, /* Melodic Tom */
{0x01, 0x10, 0x8e, 0x09, 0xf1, 0xf3, 0x06, 0x02, 0x02, 0x00, 0x0e}, /* Synth Drum */
{0x0e, 0xc0, 0x00, 0x09, 0x1f, 0x1f, 0x00, 0xff, 0x00, 0x03, 0x0e}, /* Reverse Cymbal */
{0x06, 0x03, 0x80, 0x91, 0xf8, 0x56, 0x24, 0x84, 0x00, 0x02, 0x0e}, /* Guitar Fret Noise */
{0x0e, 0xd0, 0x00, 0x0e, 0xf8, 0x34, 0x00, 0x04, 0x00, 0x03, 0x0e}, /* Breath Noise */
{0x0e, 0xc0, 0x00, 0x09, 0xf6, 0x1f, 0x00, 0x02, 0x00, 0x03, 0x0e}, /* Seashore */
{0xd5, 0xda, 0x95, 0x49, 0x37, 0x56, 0xa3, 0x37, 0x00, 0x00, 0x00}, /* Bird Tweet */
{0x35, 0x14, 0x5c, 0x11, 0xb2, 0xf4, 0x61, 0x15, 0x02, 0x00, 0x0a}, /* Telephone ring */
{0x0e, 0xd0, 0x00, 0x09, 0xf6, 0x4f, 0x00, 0xf5, 0x00, 0x03, 0x0e}, /* Helicopter */
{0x26, 0xe4, 0x00, 0x09, 0xff, 0x12, 0x01, 0x16, 0x00, 0x01, 0x0e}, /* Applause */
{0x00, 0x00, 0x00, 0x09, 0xf3, 0xf6, 0xf0, 0xc9, 0x00, 0x02, 0x0e} /* Gunshot */
};
/* logarithmic relationship between midi and FM volumes */
static int my_midi_fm_vol_table[128] = {
0, 11, 16, 19, 22, 25, 27, 29, 32, 33, 35, 37, 39, 40, 42, 43,
45, 46, 48, 49, 50, 51, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62,
64, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 75, 76, 77,
78, 79, 80, 80, 81, 82, 83, 83, 84, 85, 86, 86, 87, 88, 89, 89,
90, 91, 91, 92, 93, 93, 94, 95, 96, 96, 97, 97, 98, 99, 99, 100,
101, 101, 102, 103, 103, 104, 104, 105, 106, 106, 107, 107, 108,
109, 109, 110, 110, 111, 112, 112, 113, 113, 114, 114, 115, 115,
116, 117, 117, 118, 118, 119, 119, 120, 120, 121, 121, 122, 122,
123, 123, 124, 124, 125, 125, 126, 126, 127
};
class MidiDriver_MIDIEMU:public MidiDriver {
public:
MidiDriver_MIDIEMU();
int open(int mode);
void close();
void send(uint32 b);
void pause(bool pause);
void set_stream_callback(void *param, StreamCallback *sc);
static int midiemu_callback_thread(void *param);
private:
struct midi_channel {
int inum;
unsigned char ins[11];
int vol;
int nshift;
int on;
int pitchbend;
};
enum {
ADLIB_MELODIC = 0,
ADLIB_RYTHM = 1
};
void generate_samples(int16 *buf, uint len);
static void premix_proc(void *param, int16 *buf, unsigned int len);
void midi_write_adlib(unsigned int reg, unsigned char val);
void midi_fm_instrument(int voice, unsigned char *inst);
void midi_fm_volume(int voice, int volume);
void midi_fm_playnote(int voice, int note, int volume, int pitchbend);
void midi_fm_endnote(int voice);
unsigned char adlib_data[256];
int adlib_style;
int adlib_mode;
StreamCallback *_stream_proc;
void *_stream_param;
int _mode;
int chp[9][3];
unsigned char myinsbank[128][11];
FM_OPL *_opl;
midi_channel ch[16];
};
static unsigned char adlib_opadd[] = { 0x00, 0x01, 0x02, 0x08, 0x09, 0x0A, 0x10, 0x11, 0x12 };
MidiDriver_MIDIEMU::MidiDriver_MIDIEMU()
{
int i, j;
_mode = 0;
for (i = 0; i < 128; i++)
for (j = 0; j < 11; j++)
myinsbank[i][j] = midi_fm_instruments_table[i][j];
for (i = 0; i < 16; i++) {
ch[i].inum = 0;
for (j = 0; j < 11; j++)
ch[i].ins[j] = myinsbank[ch[i].inum][j];
ch[i].vol = 127;
ch[i].nshift = -25;
ch[i].on = 1;
ch[i].pitchbend = 0x2000;
}
/* General init */
for (i = 0; i < 9; i++) {
chp[i][0] = -1;
chp[i][2] = 0;
}
adlib_mode = ADLIB_MELODIC;
}
int MidiDriver_MIDIEMU::open(int mode)
{
_opl = OPLCreate(OPL_TYPE_YM3812, 3579545, g_system->property(OSystem::PROP_GET_SAMPLE_RATE, 0));
g_mixer->setup_premix((void *)this, premix_proc);
if (_stream_proc)
g_system->create_thread(midiemu_callback_thread, this);
return 0;
}
void MidiDriver_MIDIEMU::close()
{
_mode = 0;
}
void MidiDriver_MIDIEMU::generate_samples(int16 *data, uint len)
{
if (!_opl) {
memset(data, 0, len * sizeof(*data));
} else {
YM3812UpdateOne(_opl, data, len);
}
}
void MidiDriver_MIDIEMU::premix_proc(void *param, int16 *buf, unsigned int len)
{
((MidiDriver_MIDIEMU *) param)->generate_samples(buf, len);
}
void MidiDriver_MIDIEMU::send(uint32 b)
{
unsigned char channel = (char)(b & 0x0F);
switch (b & 0xF0) {
case 0x80:{ /*note off */
unsigned char note = (unsigned char)((b >> 8) & 0x7F);
for (int i = 0; i < 9; i++)
if ((chp[i][0] == channel) && (chp[i][1] == note)) {
midi_fm_endnote(i);
chp[i][0] = -1;
}
}
break;
case 0x90:{ /*note on */
unsigned char note = (unsigned char)((b >> 8) & 0x7F);
unsigned char vel = (unsigned char)((b >> 16) & 0x7F);
int i, j;
int onl, on, nv;
unsigned char ins[11];
on = -1;
if (ch[channel].on != 0) {
for (i = 0; i < 9; i++)
chp[i][2]++;
j = 0;
onl = 0;
for (i = 0; i < 9; i++)
if ((chp[i][0] == -1) && (chp[i][2] > onl)) {
onl = chp[i][2];
on = i;
j = 1;
}
if (on == -1) {
onl = 0;
for (i = 0; i < 9; i++)
if (chp[i][2] > onl) {
onl = chp[i][2];
on = i;
}
}
if (j == 0)
midi_fm_endnote(on);
if ((vel != 0) && (ch[channel].inum >= 0) && (ch[channel].inum < 128)) {
if ((adlib_mode == ADLIB_MELODIC) || (channel < 12))
midi_fm_instrument(on, ch[channel].ins);
else {
//the following fails to be effective
//at doing rythm sounds .. (cmf blah)
ins[0] = ins[1] = ch[channel].ins[0];
ins[2] = ins[3] = ch[channel].ins[2];
ins[4] = ins[5] = ch[channel].ins[4];
ins[6] = ins[7] = ch[channel].ins[6];
ins[8] = ins[9] = ch[channel].ins[8];
ins[10] = (ch[channel].ins[10] | 1);
midi_fm_instrument(on, ins);
}
nv = (ch[channel].vol * vel) / 128;
#ifdef LUCAS_MODE
nv *= 2;
#endif
if (nv > 127)
nv = 127;
nv = my_midi_fm_vol_table[nv];
#ifdef LUCAS_MODE
nv = (int)((double)sqrt((double)nv) * 11); /* TO CHANGE !!! */
#endif
}
midi_fm_playnote(on, note + ch[channel].nshift, nv * 2, ch[channel].pitchbend);
chp[on][0] = channel;
chp[on][1] = note;
chp[on][2] = 0;
} else {
if (vel == 0) { //same code as end note
for (i = 0; i < 9; i++)
if ((chp[i][0] == channel) && (chp[i][1] == note)) {
// midi_fm_volume(i,0); // really end the note
midi_fm_endnote(i);
chp[i][0] = -1;
}
} else { // i forget what this is for.
chp[on][0] = -1;
chp[on][2] = 0;
}
}
}
break;
case 0xa0:{ /*key after touch */
unsigned char note = (unsigned char)((b >> 8) & 0x7F);
unsigned char vel = (unsigned char)((b >> 16) & 0x7F);
for (int i = 0; i < 9; i++)
if ((chp[i][0] == channel) & (chp[i][1] == note)) {
int nv = (ch[channel].vol * vel) / 128;
if (nv > 127)
nv = 127;
nv = my_midi_fm_vol_table[nv];
midi_fm_volume(i, nv * 2);
}
}
break;
case 0xb0:{ /* control change */
int i;
unsigned char ctrl = (unsigned char)((b >> 8) & 0x7F);
unsigned char vel = (unsigned char)((b >> 16) & 0x7F);
/* FIXME: Except for Volume, the Modulation and Sustain
code is just a random guess. */
switch (ctrl) {
case 0x01: /* Modulation */
for (i = 0; i < 9; i++)
if (chp[i][0] == channel)
midi_write_adlib(0x20 + adlib_opadd[i], vel);
break;
case 0x07: /* Volume */
ch[channel].vol = vel;
break;
case 0x0A: /* Pan */
/* This is not a warning as we do not support OPL3 => no stereo anyway
debug(1, "MIDI sub-command 0xB0 (Control Change) case %02X (Pan) not handled in MIDIEMU driver.", ctrl); */
break;
case 0x40: /* Sustain on/off */
for (i = 0; i < 9; i++)
if (chp[i][0] == channel)
midi_write_adlib(0x80 + adlib_opadd[i], vel);
break;
case 0x5B: /* Extended depth effect */
debug(1,
"MIDI sub-command 0xB0 (Control Change) case %02X (Extended Depth) not handled in MIDIEMU driver.",
ctrl);
break;
case 0x5D: /* Chorus depth */
debug(1,
"MIDI sub-command 0xB0 (Control Change) case %02X (Chorus Depth) not handled in MIDIEMU driver.",
ctrl);
break;
case 0x7B: /* All notes off */
for (i = 0; i < 9; i++) {
if (chp[i][0] == channel) {
midi_fm_endnote(i);
chp[i][0] = -1;
}
}
break;
default:
debug(1, "MIDI sub-command 0xB0 (Control Change) case %02X not handled in MIDIEMU driver.",
ctrl);
break;
}
}
break;
case 0xc0:{ /* patch change */
unsigned char instrument = (unsigned char)((b >> 8) & 0x7F);
ch[channel].inum = instrument;
for (int j = 0; j < 11; j++)
ch[channel].ins[j] = myinsbank[ch[channel].inum][j];
} break;
case 0xd0: /* channel touch */
debug(1, "MIDI command 0xD0 (Channel Touch) not handled in MIDIEMU driver.");
break;
case 0xe0:{ /* pitch wheel */
int pitchbend = ((b >> 8) & 0x7F) | (((b >> 16) & 0x7F) << 7);
ch[channel].pitchbend = pitchbend;
for (int i = 0; i < 9; i++) {
if (chp[i][0] == channel) {
int nv = ch[channel].vol;
if (nv > 127)
nv = 127;
nv = my_midi_fm_vol_table[nv];
midi_fm_playnote(i, chp[i][1] + ch[channel].nshift, nv * 2, pitchbend);
}
}
}
break;
default:
fprintf(stderr, "Unknown : %08x\n", (int)b);
break;
}
}
void MidiDriver_MIDIEMU::pause(bool pause)
{
if (_mode == MO_STREAMING) {
}
}
#define NUMBER_MIDI_EVENTS 64
int MidiDriver_MIDIEMU::midiemu_callback_thread(void *param)
{
MidiDriver_MIDIEMU *driver = (MidiDriver_MIDIEMU *) param;
MidiEvent my_evs[NUMBER_MIDI_EVENTS];
bool need_midi_data = true;
for (;;) {
int number;
int i;
if (need_midi_data) {
number = driver->_stream_proc(driver->_stream_param, my_evs, NUMBER_MIDI_EVENTS);
if (!number) {
// No MIDI data available for the moment
g_system->delay_msecs(10);
continue;
}
need_midi_data = false;
}
for (i = 0; i < number; i++) {
uint32 event;
event = my_evs[i].event;
if ((event >> 24) == ME_TEMPO) {
event = (ME_TEMPO << 24) | (event & 0xFFFFFF);
}
driver->send(event);
if (my_evs[i].delta) {
g_system->delay_msecs(my_evs[i].delta);
}
}
need_midi_data = true;
}
return 0;
}
void MidiDriver_MIDIEMU::set_stream_callback(void *param, StreamCallback *sc)
{
_stream_param = param;
_stream_proc = sc;
}
MidiDriver *MidiDriver_MIDIEMU_create()
{
return new MidiDriver_MIDIEMU();
}
void MidiDriver_MIDIEMU::midi_write_adlib(unsigned int reg, unsigned char val)
{
OPLWrite(_opl, 0, reg);
OPLWrite(_opl, 1, val);
adlib_data[reg] = val;
}
void MidiDriver_MIDIEMU::midi_fm_instrument(int voice, unsigned char *inst)
{
#if 0
/* Just gotta make sure this happens because who knows when it'll be reset otherwise.... */
midi_write_adlib(0xbd, 0);
#endif
midi_write_adlib(0x20 + adlib_opadd[voice], inst[0]);
midi_write_adlib(0x23 + adlib_opadd[voice], inst[1]);
#ifdef LUCAS_MODE
midi_write_adlib(0x43 + adlib_opadd[voice], 0x3f);
if ((inst[10] & 1) == 0)
midi_write_adlib(0x40 + adlib_opadd[voice], inst[2]);
else
midi_write_adlib(0x40 + adlib_opadd[voice], 0x3f);
#else
midi_write_adlib(0x40 + adlib_opadd[voice], inst[2]);
if ((inst[10] & 1) == 0)
midi_write_adlib(0x43 + adlib_opadd[voice], inst[3]);
else
midi_write_adlib(0x43 + adlib_opadd[voice], 0);
#endif
midi_write_adlib(0x60 + adlib_opadd[voice], inst[4]);
midi_write_adlib(0x63 + adlib_opadd[voice], inst[5]);
midi_write_adlib(0x80 + adlib_opadd[voice], inst[6]);
midi_write_adlib(0x83 + adlib_opadd[voice], inst[7]);
midi_write_adlib(0xe0 + adlib_opadd[voice], inst[8]);
midi_write_adlib(0xe3 + adlib_opadd[voice], inst[9]);
midi_write_adlib(0xc0 + voice, inst[10]);
}
void MidiDriver_MIDIEMU::midi_fm_volume(int voice, int volume)
{
volume >>= 2;
if ((adlib_data[0xc0 + voice] & 1) == 1)
midi_write_adlib(0x40 + adlib_opadd[voice],
(unsigned char)((63 - volume) |
(adlib_data[0x40 + adlib_opadd[voice]] & 0xc0)));
midi_write_adlib(0x43 + adlib_opadd[voice],
(unsigned char)((63 - volume) | (adlib_data[0x43 + adlib_opadd[voice]] & 0xc0)));
}
static int fnums[] =
{ 0x16b, 0x181, 0x198, 0x1b0, 0x1ca, 0x1e5, 0x202, 0x220, 0x241, 0x263, 0x287, 0x2ae };
/* These tables 'borrowed' from Timidity tables.c
Copyright (C) 1999-2001 Masanao Izumo <mo@goice.co.jp>
Copyright (C) 1995 Tuukka Toivonen <tt@cgs.fi>
*/
double bend_fine[256] = {
1.0, 1.0002256593050698, 1.0004513695322617, 1.0006771306930664,
1.0009029427989777, 1.0011288058614922, 1.0013547198921082, 1.0015806849023274,
1.0018067009036538, 1.002032767907594, 1.0022588859256572, 1.0024850549693551,
1.0027112750502025, 1.0029375461797159, 1.0031638683694153, 1.0033902416308227,
1.0036166659754628, 1.0038431414148634, 1.0040696679605541, 1.0042962456240678,
1.0045228744169397, 1.0047495543507072, 1.0049762854369111, 1.0052030676870944,
1.0054299011128027, 1.0056567857255843, 1.00588372153699, 1.006110708558573,
1.0063377468018897, 1.0065648362784985, 1.0067919769999607, 1.0070191689778405,
1.0072464122237039, 1.0074737067491204, 1.0077010525656616, 1.0079284496849015,
1.0081558981184175, 1.008383397877789, 1.008610948974598, 1.0088385514204294,
1.0090662052268706, 1.0092939104055114, 1.0095216669679448, 1.0097494749257656,
1.009977334290572, 1.0102052450739643, 1.0104332072875455, 1.0106612209429215,
1.0108892860517005, 1.0111174026254934, 1.0113455706759138, 1.0115737902145781,
1.0118020612531047, 1.0120303838031153, 1.0122587578762337, 1.012487183484087,
1.0127156606383041, 1.0129441893505169, 1.0131727696323602, 1.0134014014954713,
1.0136300849514894, 1.0138588200120575, 1.0140876066888203, 1.0143164449934257,
1.0145453349375237, 1.0147742765327674, 1.0150032697908125, 1.0152323147233171,
1.015461411341942, 1.0156905596583505, 1.0159197596842091, 1.0161490114311862,
1.0163783149109531, 1.0166076701351838, 1.0168370771155553, 1.0170665358637463,
1.0172960463914391, 1.0175256087103179, 1.0177552228320703, 1.0179848887683858,
1.0182146065309567, 1.0184443761314785, 1.0186741975816487, 1.0189040708931674,
1.0191339960777379, 1.0193639731470658, 1.0195940021128593, 1.0198240829868295,
1.0200542157806898, 1.0202844005061564, 1.0205146371749483, 1.0207449257987866,
1.0209752663893958, 1.0212056589585028, 1.0214361035178368, 1.0216666000791297,
1.0218971486541166, 1.0221277492545349, 1.0223584018921241, 1.0225891065786274,
1.0228198633257899, 1.0230506721453596, 1.023281533049087, 1.0235124460487257,
1.0237434111560313, 1.0239744283827625, 1.0242054977406807, 1.0244366192415495,
1.0246677928971357, 1.0248990187192082, 1.025130296719539, 1.0253616269099028,
1.0255930093020766, 1.0258244439078401, 1.0260559307389761, 1.0262874698072693,
1.0265190611245079, 1.0267507047024822, 1.0269824005529853, 1.027214148687813,
1.0274459491187637, 1.0276778018576387, 1.0279097069162415, 1.0281416643063788,
1.0283736740398595, 1.0286057361284953, 1.0288378505841009, 1.0290700174184932,
1.0293022366434921, 1.0295345082709197, 1.0297668323126017, 1.0299992087803651,
1.030231637686041, 1.0304641190414621, 1.0306966528584645, 1.0309292391488862,
1.0311618779245688, 1.0313945691973556, 1.0316273129790936, 1.0318601092816313,
1.0320929581168212, 1.0323258594965172, 1.0325588134325767, 1.0327918199368598,
1.0330248790212284, 1.0332579906975481, 1.0334911549776868, 1.033724371873515,
1.0339576413969056, 1.0341909635597348, 1.0344243383738811, 1.0346577658512259,
1.034891246003653, 1.0351247788430489, 1.0353583643813031, 1.0355920026303078,
1.0358256936019572, 1.0360594373081489, 1.0362932337607829, 1.0365270829717617,
1.0367609849529913, 1.0369949397163791, 1.0372289472738365, 1.0374630076372766,
1.0376971208186156, 1.0379312868297725, 1.0381655056826686, 1.0383997773892284,
1.0386341019613787, 1.0388684794110492, 1.0391029097501721, 1.0393373929906822,
1.0395719291445176, 1.0398065182236185, 1.0400411602399278, 1.0402758552053915,
1.0405106031319582, 1.0407454040315787, 1.0409802579162071, 1.0412151647977996,
1.0414501246883161, 1.0416851375997183, 1.0419202035439705, 1.0421553225330404,
1.042390494578898, 1.042625719693516, 1.0428609978888699, 1.043096329176938,
1.0433317135697009, 1.0435671510791424, 1.0438026417172486, 1.0440381854960086,
1.0442737824274138, 1.044509432523459, 1.044745135796141, 1.0449808922574599,
1.0452167019194181, 1.0454525647940205, 1.0456884808932754, 1.0459244502291931,
1.0461604728137874, 1.0463965486590741, 1.046632677777072, 1.0468688601798024,
1.0471050958792898, 1.047341384887561, 1.0475777272166455, 1.047814122878576,
1.048050571885387, 1.0482870742491166, 1.0485236299818055, 1.0487602390954964,
1.0489969016022356, 1.0492336175140715, 1.0494703868430555, 1.0497072096012419,
1.0499440858006872, 1.0501810154534512, 1.050417998571596, 1.0506550351671864,
1.0508921252522903, 1.0511292688389782, 1.0513664659393229, 1.0516037165654004,
1.0518410207292894, 1.0520783784430709, 1.0523157897188296, 1.0525532545686513,
1.0527907730046264, 1.0530283450388465, 1.0532659706834067, 1.0535036499504049,
1.0537413828519411, 1.0539791694001188, 1.0542170096070436, 1.0544549034848243,
1.0546928510455722, 1.0549308523014012, 1.0551689072644284, 1.0554070159467728,
1.0556451783605572, 1.0558833945179062, 1.0561216644309479, 1.0563599881118126,
1.0565983655726334, 1.0568367968255465, 1.0570752818826903, 1.0573138207562065,
1.057552413458239, 1.0577910600009348, 1.0580297603964437, 1.058268514656918,
1.0585073227945128, 1.0587461848213857, 1.058985100749698, 1.0592240705916123
};
double bend_coarse[128] = {
1.0, 1.0594630943592953, 1.122462048309373, 1.189207115002721,
1.2599210498948732, 1.3348398541700344, 1.4142135623730951, 1.4983070768766815,
1.5874010519681994, 1.681792830507429, 1.7817974362806785, 1.8877486253633868,
2.0, 2.1189261887185906, 2.244924096618746, 2.3784142300054421,
2.5198420997897464, 2.6696797083400687, 2.8284271247461903, 2.996614153753363,
3.1748021039363992, 3.363585661014858, 3.5635948725613571, 3.7754972507267741,
4.0, 4.2378523774371812, 4.4898481932374912, 4.7568284600108841,
5.0396841995794928, 5.3393594166801366, 5.6568542494923806, 5.993228307506727,
6.3496042078727974, 6.727171322029716, 7.1271897451227151, 7.5509945014535473,
8.0, 8.4757047548743625, 8.9796963864749824, 9.5136569200217682,
10.079368399158986, 10.678718833360273, 11.313708498984761, 11.986456615013454,
12.699208415745595, 13.454342644059432, 14.25437949024543, 15.101989002907095,
16.0, 16.951409509748721, 17.959392772949972, 19.027313840043536,
20.158736798317967, 21.357437666720553, 22.627416997969522, 23.972913230026901,
25.398416831491197, 26.908685288118864, 28.508758980490853, 30.203978005814196,
32.0, 33.902819019497443, 35.918785545899944, 38.054627680087073,
40.317473596635935, 42.714875333441107, 45.254833995939045, 47.945826460053802,
50.796833662982394, 53.817370576237728, 57.017517960981706, 60.407956011628393,
64.0, 67.805638038994886, 71.837571091799887, 76.109255360174146,
80.63494719327187, 85.429750666882214, 90.509667991878089, 95.891652920107603,
101.59366732596479, 107.63474115247546, 114.03503592196341, 120.81591202325679,
128.0, 135.61127607798977, 143.67514218359977, 152.21851072034829,
161.26989438654374, 170.85950133376443, 181.01933598375618, 191.78330584021521,
203.18733465192958, 215.26948230495091, 228.07007184392683, 241.63182404651357,
256.0, 271.22255215597971, 287.35028436719938, 304.43702144069658,
322.53978877308765, 341.71900266752868, 362.03867196751236, 383.56661168043064,
406.37466930385892, 430.53896460990183, 456.14014368785394, 483.26364809302686,
512.0, 542.44510431195943, 574.70056873439876, 608.87404288139317,
645.0795775461753, 683.43800533505737, 724.07734393502471, 767.13322336086128,
812.74933860771785, 861.07792921980365, 912.28028737570787, 966.52729618605372,
1024.0, 1084.8902086239189, 1149.4011374687975, 1217.7480857627863,
1290.1591550923506, 1366.8760106701147, 1448.1546878700494, 1534.2664467217226
};
void MidiDriver_MIDIEMU::midi_fm_playnote(int voice, int note, int volume, int pitchbend)
{
int freq = fnums[note % 12];
int oct = note / 12;
int c;
float pf;
pitchbend -= 0x2000;
if (pitchbend != 0) {
pitchbend *= 2;
if (pitchbend >= 0)
pf = (float)(bend_fine[(pitchbend >> 5) & 0xFF] * bend_coarse[(pitchbend >> 13) & 0x7F]);
else {
pitchbend = -pitchbend;
pf =
(float)(1.0 / (bend_fine[(pitchbend >> 5) & 0xFF] * bend_coarse[(pitchbend >> 13) & 0x7F]));
}
freq = (int)((float)freq * pf);
while (freq >= (fnums[0] * 2)) {
freq /= 2;
oct += 1;
}
while (freq < fnums[0]) {
freq *= 2;
oct -= 1;
}
}
midi_fm_volume(voice, volume);
midi_write_adlib(0xa0 + voice, (unsigned char)(freq & 0xff));
c = ((freq & 0x300) >> 8) + (oct << 2) + (1 << 5);
midi_write_adlib(0xb0 + voice, (unsigned char)c);
}
void MidiDriver_MIDIEMU::midi_fm_endnote(int voice)
{
midi_write_adlib(0xb0 + voice, (unsigned char)(adlib_data[0xb0 + voice] & (255 - 32)));
}
#if defined(UNIX) && defined(USE_ALSA)
#include <alsa/asoundlib.h>
/*
* ALSA sequencer driver
* Mostly cut'n'pasted from Virtual Tiny Keyboard (vkeybd) by Takashi Iwai
* (you really rox, you know?)
*/
#if SND_LIB_MINOR >= 6
#define snd_seq_flush_output(x) snd_seq_drain_output(x)
#define snd_seq_set_client_group(x,name) /*nop */
#define my_snd_seq_open(seqp) snd_seq_open(seqp, "hw", SND_SEQ_OPEN_OUTPUT, 0)
#else
/* SND_SEQ_OPEN_OUT causes oops on early version of ALSA */
#define my_snd_seq_open(seqp) snd_seq_open(seqp, SND_SEQ_OPEN)
#endif
/*
* parse address string
*/
#define ADDR_DELIM ".:"
class MidiDriver_ALSA:public MidiDriver {
public:
MidiDriver_ALSA();
int open(int mode);
void close();
void send(uint32 b);
void pause(bool pause);
void set_stream_callback(void *param, StreamCallback *sc);
private:
void send_event(int do_flush);
snd_seq_event_t ev;
StreamCallback *_stream_proc;
void *_stream_param;
int _mode;
snd_seq_t *seq_handle;
int seq_client, seq_port;
int my_client, my_port;
static int parse_addr(char *arg, int *client, int *port);
};
MidiDriver_ALSA::MidiDriver_ALSA():_mode(0), seq_handle(0), seq_client(0), seq_port(0), my_client(0),
my_port(0)
{
}
int MidiDriver_ALSA::parse_addr(char *arg, int *client, int *port)
{
char *p;
if (isdigit(*arg)) {
if ((p = strpbrk(arg, ADDR_DELIM)) == NULL)
return -1;
*client = atoi(arg);
*port = atoi(p + 1);
} else {
if (*arg == 's' || *arg == 'S') {
*client = SND_SEQ_ADDRESS_SUBSCRIBERS;
*port = 0;
} else
return -1;
}
return 0;
}
void MidiDriver_ALSA::send_event(int do_flush)
{
snd_seq_ev_set_direct(&ev);
snd_seq_ev_set_source(&ev, my_port);
snd_seq_ev_set_dest(&ev, seq_client, seq_port);
snd_seq_event_output(seq_handle, &ev);
if (do_flush)
snd_seq_flush_output(seq_handle);
}
int MidiDriver_ALSA::open(int mode)
{
char *var;
unsigned int caps;
if (_mode != 0)
return MERR_ALREADY_OPEN;
_mode = mode;
if (mode != MO_SIMPLE)
return MERR_STREAMING_NOT_AVAILABLE;
if (!(var = getenv("SCUMMVM_PORT"))) {
error("You have to define the environnement variable SCUMMVM_PORT");
return -1;
}
if (parse_addr(var, &seq_client, &seq_port) < 0) {
error("Invalid port %s", var);
return -1;
}
if (my_snd_seq_open(&seq_handle)) {
error("Can't open sequencer");
return -1;
}
my_client = snd_seq_client_id(seq_handle);
snd_seq_set_client_name(seq_handle, "SCUMMVM");
snd_seq_set_client_group(seq_handle, "input");
caps = SND_SEQ_PORT_CAP_READ;
if (seq_client == SND_SEQ_ADDRESS_SUBSCRIBERS)
caps = ~SND_SEQ_PORT_CAP_SUBS_READ;
my_port =
snd_seq_create_simple_port(seq_handle, "SCUMMVM", caps,
SND_SEQ_PORT_TYPE_MIDI_GENERIC | SND_SEQ_PORT_TYPE_APPLICATION);
if (my_port < 0) {
snd_seq_close(seq_handle);
error("Can't create port");
return -1;
}
if (seq_client != SND_SEQ_ADDRESS_SUBSCRIBERS) {
/* subscribe to MIDI port */
if (snd_seq_connect_to(seq_handle, my_port, seq_client, seq_port) < 0) {
snd_seq_close(seq_handle);
error("Can't subscribe to MIDI port (%d:%d)", seq_client, seq_port);
return -1;
}
}
printf("ALSA client initialised [%d:%d]\n", my_client, my_port);
return 0;
}
void MidiDriver_ALSA::close()
{
_mode = 0;
if (seq_handle)
snd_seq_close(seq_handle);
}
void MidiDriver_ALSA::send(uint32 b)
{
unsigned int midiCmd[4];
ev.type = SND_SEQ_EVENT_OSS;
midiCmd[3] = (b & 0xFF000000) >> 24;
midiCmd[2] = (b & 0x00FF0000) >> 16;
midiCmd[1] = (b & 0x0000FF00) >> 8;
midiCmd[0] = (b & 0x000000FF);
ev.data.raw32.d[0] = midiCmd[0];
ev.data.raw32.d[1] = midiCmd[1];
ev.data.raw32.d[2] = midiCmd[2];
unsigned char chanID = midiCmd[0] & 0x0F;
switch (midiCmd[0] & 0xF0) {
case 0x80:
snd_seq_ev_set_noteoff(&ev, chanID, midiCmd[1], midiCmd[2]);
send_event(1);
break;
case 0x90:
snd_seq_ev_set_noteon(&ev, chanID, midiCmd[1], midiCmd[2]);
send_event(1);
break;
case 0xB0:
/* is it this simple ? Wow... */
snd_seq_ev_set_controller(&ev, chanID, midiCmd[1], midiCmd[2]);
send_event(1);
break;
case 0xC0:
snd_seq_ev_set_pgmchange(&ev, chanID, midiCmd[1]);
send_event(0);
break;
case 0xE0:{
long theBend = ((((long)midiCmd[1] + (long)(midiCmd[2] << 8))) - 0x4000) / 4;
snd_seq_ev_set_pitchbend(&ev, chanID, theBend);
send_event(1);
}
break;
default:
error("Unknown Command: %08x\n", (int)b);
/* I don't know if this works but, well... */
send_event(1);
break;
}
}
void MidiDriver_ALSA::pause(bool pause)
{
if (_mode == MO_STREAMING) {
/* Err... and what? */
}
}
void MidiDriver_ALSA::set_stream_callback(void *param, StreamCallback *sc)
{
_stream_param = param;
_stream_proc = sc;
}
MidiDriver *MidiDriver_ALSA_create()
{
return new MidiDriver_ALSA();
}
#endif
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