mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-11-14 08:30:58 +00:00
283 lines
10 KiB
C
283 lines
10 KiB
C
|
/*
|
||
|
|
Copyright (C) 1994-1995 Apogee Software, Ltd.
|
||
|
|
|
||
|
|
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.
|
||
|
|
|
||
|
|
Modifications for JonoF's port by Jonathon Fowler (jonof@edgenetwk.com)
|
||
|
|
|
||
|
|
*/
|
||
|
|
/**********************************************************************
|
||
|
|
module: _MIDI.H
|
||
|
|
|
||
|
|
author: James R. Dose
|
||
|
|
date: May 25, 1994
|
||
|
|
|
||
|
|
Private header for MIDI.C. Midi song file playback routines.
|
||
|
|
|
||
|
|
(c) Copyright 1994 James R. Dose. All Rights Reserved.
|
||
|
|
**********************************************************************/
|
||
|
|
|
||
|
|
#ifndef ___MIDI_H
|
||
|
|
#define ___MIDI_H
|
||
|
|
#include "compat.h"
|
||
|
|
|
||
|
|
#define RELATIVE_BEAT( measure, beat, tick ) \
|
||
|
|
( ( tick ) + ( ( beat ) << 9 ) + ( ( measure ) << 16 ) )
|
||
|
|
|
||
|
|
//Bobby Prince thinks this may be 100
|
||
|
|
//#define GENMIDI_DefaultVolume 100
|
||
|
|
#define GENMIDI_DefaultVolume 90
|
||
|
|
|
||
|
|
#define MAX_FORMAT 1
|
||
|
|
|
||
|
|
#define NUM_MIDI_CHANNELS 16
|
||
|
|
|
||
|
|
#define TIME_PRECISION 16
|
||
|
|
|
||
|
|
#define MIDI_HEADER_SIGNATURE 0x6468544d // "MThd"
|
||
|
|
#define MIDI_TRACK_SIGNATURE 0x6b72544d // "MTrk"
|
||
|
|
|
||
|
|
#define MIDI_VOLUME 7
|
||
|
|
#define MIDI_PAN 10
|
||
|
|
#define MIDI_DETUNE 94
|
||
|
|
#define MIDI_RHYTHM_CHANNEL 9
|
||
|
|
#define MIDI_RPN_MSB 100
|
||
|
|
#define MIDI_RPN_LSB 101
|
||
|
|
#define MIDI_DATAENTRY_MSB 6
|
||
|
|
#define MIDI_DATAENTRY_LSB 38
|
||
|
|
#define MIDI_PITCHBEND_MSB 0
|
||
|
|
#define MIDI_PITCHBEND_LSB 0
|
||
|
|
#define MIDI_RUNNING_STATUS 0x80
|
||
|
|
#define MIDI_NOTE_OFF 0x8
|
||
|
|
#define MIDI_NOTE_ON 0x9
|
||
|
|
#define MIDI_POLY_AFTER_TCH 0xA
|
||
|
|
#define MIDI_CONTROL_CHANGE 0xB
|
||
|
|
#define MIDI_PROGRAM_CHANGE 0xC
|
||
|
|
#define MIDI_AFTER_TOUCH 0xD
|
||
|
|
#define MIDI_PITCH_BEND 0xE
|
||
|
|
#define MIDI_SPECIAL 0xF
|
||
|
|
#define MIDI_SYSEX 0xF0
|
||
|
|
#define MIDI_SYSEX_CONTINUE 0xF7
|
||
|
|
#define MIDI_META_EVENT 0xFF
|
||
|
|
#define MIDI_END_OF_TRACK 0x2F
|
||
|
|
#define MIDI_TEMPO_CHANGE 0x51
|
||
|
|
#define MIDI_TIME_SIGNATURE 0x58
|
||
|
|
#define MIDI_RESET_ALL_CONTROLLERS 0x79
|
||
|
|
#define MIDI_ALL_NOTES_OFF 0x7b
|
||
|
|
#define MIDI_MONO_MODE_ON 0x7E
|
||
|
|
#define MIDI_SYSTEM_RESET 0xFF
|
||
|
|
|
||
|
|
#define GET_NEXT_EVENT( track, data ) \
|
||
|
|
( data ) = *( track )->pos; \
|
||
|
|
( track )->pos += 1
|
||
|
|
|
||
|
|
#define GET_MIDI_CHANNEL( event ) ( ( event ) & 0xf )
|
||
|
|
#define GET_MIDI_COMMAND( event ) ( ( event ) >> 4 )
|
||
|
|
|
||
|
|
#define EMIDI_INFINITE -1
|
||
|
|
#define EMIDI_END_LOOP_VALUE 127
|
||
|
|
#define EMIDI_ALL_CARDS 127
|
||
|
|
#define EMIDI_INCLUDE_TRACK 110
|
||
|
|
#define EMIDI_EXCLUDE_TRACK 111
|
||
|
|
#define EMIDI_PROGRAM_CHANGE 112
|
||
|
|
#define EMIDI_VOLUME_CHANGE 113
|
||
|
|
#define EMIDI_CONTEXT_START 114
|
||
|
|
#define EMIDI_CONTEXT_END 115
|
||
|
|
#define EMIDI_LOOP_START 116
|
||
|
|
#define EMIDI_LOOP_END 117
|
||
|
|
#define EMIDI_SONG_LOOP_START 118
|
||
|
|
#define EMIDI_SONG_LOOP_END 119
|
||
|
|
|
||
|
|
#define EMIDI_GeneralMIDI 0
|
||
|
|
|
||
|
|
#define EMIDI_AffectsCurrentCard( c, type ) \
|
||
|
|
( ( ( c ) == EMIDI_ALL_CARDS ) || ( ( c ) == ( type ) ) )
|
||
|
|
|
||
|
|
|
||
|
|
#define EMIDI_NUM_CONTEXTS 7
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
char *pos;
|
||
|
|
char *loopstart;
|
||
|
|
int16_t loopcount;
|
||
|
|
int16_t RunningStatus;
|
||
|
|
unsigned time;
|
||
|
|
int32_t FPSecondsPerTick;
|
||
|
|
int16_t tick;
|
||
|
|
int16_t beat;
|
||
|
|
int16_t measure;
|
||
|
|
int16_t BeatsPerMeasure;
|
||
|
|
int16_t TicksPerBeat;
|
||
|
|
int16_t TimeBase;
|
||
|
|
int32_t delay;
|
||
|
|
int16_t active;
|
||
|
|
} songcontext;
|
||
|
|
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
char *start;
|
||
|
|
char *pos;
|
||
|
|
|
||
|
|
int32_t delay;
|
||
|
|
int16_t active;
|
||
|
|
int16_t RunningStatus;
|
||
|
|
|
||
|
|
int16_t currentcontext;
|
||
|
|
songcontext context[ EMIDI_NUM_CONTEXTS ];
|
||
|
|
|
||
|
|
char EMIDI_IncludeTrack;
|
||
|
|
char EMIDI_ProgramChange;
|
||
|
|
char EMIDI_VolumeChange;
|
||
|
|
} track;
|
||
|
|
|
||
|
|
static int32_t _MIDI_ReadNumber( void *from, size_t size );
|
||
|
|
static int32_t _MIDI_ReadDelta( track *ptr );
|
||
|
|
static void _MIDI_ResetTracks( void );
|
||
|
|
static void _MIDI_AdvanceTick( void );
|
||
|
|
static void _MIDI_MetaEvent( track *Track );
|
||
|
|
static void _MIDI_SysEx( track *Track );
|
||
|
|
static int32_t _MIDI_InterpretControllerInfo( track *Track, int32_t TimeSet,
|
||
|
|
int32_t channel, int32_t c1, int32_t c2 );
|
||
|
|
static int32_t _MIDI_SendControlChange( int32_t channel, int32_t c1, int32_t c2 );
|
||
|
|
static void _MIDI_SetChannelVolume( int32_t channel, int32_t volume );
|
||
|
|
static void _MIDI_SendChannelVolumes( void );
|
||
|
|
static int32_t _MIDI_ProcessNextTick( void );
|
||
|
|
static void _MIDI_InitEMIDI( void );
|
||
|
|
|
||
|
|
/*
|
||
|
|
if ( c1 == EMIDI_LOOP_START )
|
||
|
|
{
|
||
|
|
if ( c2 == 0 )
|
||
|
|
{
|
||
|
|
Track->context[ 0 ].loopcount = EMIDI_INFINITE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Track->context[ 0 ].loopcount = c2;
|
||
|
|
}
|
||
|
|
|
||
|
|
Track->context[ 0 ].pos = Track->pos;
|
||
|
|
Track->context[ 0 ].loopstart = Track->pos;
|
||
|
|
Track->context[ 0 ].RunningStatus = Track->RunningStatus;
|
||
|
|
Track->context[ 0 ].time = _MIDI_Time;
|
||
|
|
Track->context[ 0 ].FPSecondsPerTick = _MIDI_FPSecondsPerTick;
|
||
|
|
Track->context[ 0 ].tick = _MIDI_Tick;
|
||
|
|
Track->context[ 0 ].beat = _MIDI_Beat;
|
||
|
|
Track->context[ 0 ].measure = _MIDI_Measure;
|
||
|
|
Track->context[ 0 ].BeatsPerMeasure = _MIDI_BeatsPerMeasure;
|
||
|
|
Track->context[ 0 ].TicksPerBeat = _MIDI_TicksPerBeat;
|
||
|
|
Track->context[ 0 ].TimeBase = _MIDI_TimeBase;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ( c1 == EMIDI_LOOP_END ) &&
|
||
|
|
( c2 == EMIDI_END_LOOP_VALUE ) )
|
||
|
|
{
|
||
|
|
if ( ( Track->context[ 0 ].loopstart != NULL ) &&
|
||
|
|
( Track->context[ 0 ].loopcount != 0 ) )
|
||
|
|
{
|
||
|
|
if ( Track->context[ 0 ].loopcount != EMIDI_INFINITE )
|
||
|
|
{
|
||
|
|
Track->context[ 0 ].loopcount--;
|
||
|
|
}
|
||
|
|
|
||
|
|
Track->pos = Track->context[ 0 ].loopstart;
|
||
|
|
Track->RunningStatus = Track->context[ 0 ].RunningStatus;
|
||
|
|
|
||
|
|
if ( !TimeSet )
|
||
|
|
{
|
||
|
|
_MIDI_Time = Track->context[ 0 ].time;
|
||
|
|
_MIDI_FPSecondsPerTick = Track->context[ 0 ].FPSecondsPerTick;
|
||
|
|
_MIDI_Tick = Track->context[ 0 ].tick;
|
||
|
|
_MIDI_Beat = Track->context[ 0 ].beat;
|
||
|
|
_MIDI_Measure = Track->context[ 0 ].measure;
|
||
|
|
_MIDI_BeatsPerMeasure = Track->context[ 0 ].BeatsPerMeasure;
|
||
|
|
_MIDI_TicksPerBeat = Track->context[ 0 ].TicksPerBeat;
|
||
|
|
_MIDI_TimeBase = Track->context[ 0 ].TimeBase;
|
||
|
|
TimeSet = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( c1 == MIDI_MONO_MODE_ON )
|
||
|
|
{
|
||
|
|
Track->pos++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ( c1 == MIDI_VOLUME ) && ( !Track->EMIDI_VolumeChange ) )
|
||
|
|
{
|
||
|
|
_MIDI_SetChannelVolume( channel, c2 );
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
else if ( ( c1 == EMIDI_VOLUME_CHANGE ) &&
|
||
|
|
( Track->EMIDI_VolumeChange ) )
|
||
|
|
{
|
||
|
|
_MIDI_SetChannelVolume( channel, c2 );
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ( c1 == EMIDI_PROGRAM_CHANGE ) &&
|
||
|
|
( Track->EMIDI_ProgramChange ) )
|
||
|
|
{
|
||
|
|
_MIDI_Funcs->ProgramChange( channel, MIDI_PatchMap[ c2 & 0x7f ] );
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( c1 == EMIDI_CONTEXT_START )
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( c1 == EMIDI_CONTEXT_END )
|
||
|
|
{
|
||
|
|
if ( ( Track->currentcontext != _MIDI_Context ) ||
|
||
|
|
( Track->context[ _MIDI_Context ].pos == NULL )
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
Track->currentcontext = _MIDI_Context;
|
||
|
|
Track->context[ 0 ].loopstart = Track->context[ _MIDI_Context ].loopstart;
|
||
|
|
Track->context[ 0 ].loopcount = Track->context[ _MIDI_Context ].loopcount;
|
||
|
|
Track->pos = Track->context[ _MIDI_Context ].pos;
|
||
|
|
Track->RunningStatus = Track->context[ _MIDI_Context ].RunningStatus;
|
||
|
|
|
||
|
|
if ( TimeSet )
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
_MIDI_Time = Track->context[ _MIDI_Context ].time;
|
||
|
|
_MIDI_FPSecondsPerTick = Track->context[ _MIDI_Context ].FPSecondsPerTick;
|
||
|
|
_MIDI_Tick = Track->context[ _MIDI_Context ].tick;
|
||
|
|
_MIDI_Beat = Track->context[ _MIDI_Context ].beat;
|
||
|
|
_MIDI_Measure = Track->context[ _MIDI_Context ].measure;
|
||
|
|
_MIDI_BeatsPerMeasure = Track->context[ _MIDI_Context ].BeatsPerMeasure;
|
||
|
|
_MIDI_TicksPerBeat = Track->context[ _MIDI_Context ].TicksPerBeat;
|
||
|
|
_MIDI_TimeBase = Track->context[ _MIDI_Context ].TimeBase;
|
||
|
|
TimeSet = TRUE;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( _MIDI_Funcs->ControlChange )
|
||
|
|
{
|
||
|
|
_MIDI_Funcs->ControlChange( channel, c1, c2 );
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
|
||
|
|
#endif
|