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gzdoom/libraries/adlmidi/adlmidi_private.hpp
Christoph Oelckers 84cc7cbdd2 - made libadl its own library subproject. 
This is to improve compile times because the MSVC compiler tends to become slow with large lists of source files in a single project.
This new project is still our stripped down copy of libadl, not the original, because that project contains a large amount of baggage we do not need.
2019-09-23 10:03:17 +02:00

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/*
* libADLMIDI is a free MIDI to WAV conversion library with OPL3 emulation
*
* Original ADLMIDI code: Copyright (c) 2010-2014 Joel Yliluoma <bisqwit@iki.fi>
* ADLMIDI Library API: Copyright (c) 2015-2018 Vitaly Novichkov <admin@wohlnet.ru>
*
* Library is based on the ADLMIDI, a MIDI player for Linux and Windows with OPL3 emulation:
* http://iki.fi/bisqwit/source/adlmidi.html
*
* 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 3 of the License, or
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef ADLMIDI_PRIVATE_HPP
#define ADLMIDI_PRIVATE_HPP
// Setup compiler defines useful for exporting required public API symbols in gme.cpp
#ifndef ADLMIDI_EXPORT
# if defined (_WIN32) && defined(ADLMIDI_BUILD_DLL)
# define ADLMIDI_EXPORT __declspec(dllexport)
# elif defined (LIBADLMIDI_VISIBILITY) && defined (__GNUC__)
# define ADLMIDI_EXPORT __attribute__((visibility ("default")))
# else
# define ADLMIDI_EXPORT
# endif
#endif
#ifdef _WIN32
#define NOMINMAX 1
#endif
#if defined(_WIN32) && !defined(__WATCOMC__)
# undef NO_OLDNAMES
# include <stdint.h>
# ifdef _MSC_VER
# ifdef _WIN64
typedef __int64 ssize_t;
# else
typedef __int32 ssize_t;
# endif
# define NOMINMAX 1 //Don't override std::min and std::max
# else
# ifdef _WIN64
typedef int64_t ssize_t;
# else
typedef int32_t ssize_t;
# endif
# endif
# include <windows.h>
#endif
#if defined(__DJGPP__) || (defined(__WATCOMC__) && (defined(__DOS__) || defined(__DOS4G__) || defined(__DOS4GNZ__)))
#define ADLMIDI_HW_OPL
#include <conio.h>
#ifdef __DJGPP__
#include <pc.h>
#include <dpmi.h>
#include <go32.h>
#include <sys/farptr.h>
#include <dos.h>
#endif
#endif
#include <vector>
#include <list>
#include <string>
//#ifdef __WATCOMC__
//#include <myset.h> //TODO: Implemnet a workaround for OpenWatcom to fix a crash while using those containers
//#include <mymap.h>
//#else
#include <map>
#include <set>
#include <new> // nothrow
//#endif
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <cstdarg>
#include <cstdio>
#include <cassert>
#include <vector> // vector
#include <deque> // deque
#include <cmath> // exp, log, ceil
#if defined(__WATCOMC__)
#include <math.h> // round, sqrt
#endif
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits> // numeric_limit
#ifndef _WIN32
#include <errno.h>
#endif
#include <deque>
#include <algorithm>
/*
* Workaround for some compilers are has no those macros in their headers!
*/
#ifndef INT8_MIN
#define INT8_MIN (-0x7f - 1)
#endif
#ifndef INT16_MIN
#define INT16_MIN (-0x7fff - 1)
#endif
#ifndef INT32_MIN
#define INT32_MIN (-0x7fffffff - 1)
#endif
#ifndef INT8_MAX
#define INT8_MAX 0x7f
#endif
#ifndef INT16_MAX
#define INT16_MAX 0x7fff
#endif
#ifndef INT32_MAX
#define INT32_MAX 0x7fffffff
#endif
#include "file_reader.hpp"
#ifndef ADLMIDI_DISABLE_MIDI_SEQUENCER
// Rename class to avoid ABI collisions
#define BW_MidiSequencer AdlMidiSequencer
#include "midi_sequencer.hpp"
typedef BW_MidiSequencer MidiSequencer;
#endif//ADLMIDI_DISABLE_MIDI_SEQUENCER
#ifndef ADLMIDI_HW_OPL
#include "chips/opl_chip_base.h"
#endif
#include "adldata.hh"
#define ADLMIDI_BUILD
#include "adlmidi.h" //Main API
#ifndef ADLMIDI_DISABLE_CPP_EXTRAS
#include "adlmidi.hpp" //Extra C++ API
#endif
#include "adlmidi_ptr.hpp"
#include "adlmidi_bankmap.h"
#define ADL_UNUSED(x) (void)x
#define OPL_PANNING_LEFT 0x10
#define OPL_PANNING_RIGHT 0x20
#define OPL_PANNING_BOTH 0x30
#ifdef ADLMIDI_HW_OPL
#define ADL_MAX_CHIPS 1
#define ADL_MAX_CHIPS_STR "1" //Why not just "#MaxCards" ? Watcom fails to pass this with "syntax error" :-P
#else
#define ADL_MAX_CHIPS 100
#define ADL_MAX_CHIPS_STR "100"
#endif
extern std::string ADLMIDI_ErrorString;
/*
Sample conversions to various formats
*/
template <class Real>
inline Real adl_cvtReal(int32_t x)
{
return static_cast<Real>(x) * (static_cast<Real>(1) / static_cast<Real>(INT16_MAX));
}
inline int32_t adl_cvtS16(int32_t x)
{
x = (x < INT16_MIN) ? (INT16_MIN) : x;
x = (x > INT16_MAX) ? (INT16_MAX) : x;
return x;
}
inline int32_t adl_cvtS8(int32_t x)
{
return adl_cvtS16(x) / 256;
}
inline int32_t adl_cvtS24(int32_t x)
{
return adl_cvtS16(x) * 256;
}
inline int32_t adl_cvtS32(int32_t x)
{
return adl_cvtS16(x) * 65536;
}
inline int32_t adl_cvtU16(int32_t x)
{
return adl_cvtS16(x) - INT16_MIN;
}
inline int32_t adl_cvtU8(int32_t x)
{
return (adl_cvtS16(x) / 256) - INT8_MIN;
}
inline int32_t adl_cvtU24(int32_t x)
{
enum { int24_min = -(1 << 23) };
return adl_cvtS24(x) - int24_min;
}
inline int32_t adl_cvtU32(int32_t x)
{
// unsigned operation because overflow on signed integers is undefined
return (uint32_t)adl_cvtS32(x) - (uint32_t)INT32_MIN;
}
struct ADL_MIDIPlayer;
class MIDIplay;
/**
* @brief OPL3 Chip management class
*/
class OPL3
{
friend class MIDIplay;
friend class AdlInstrumentTester;
friend int adlCalculateFourOpChannels(MIDIplay *play, bool silent);
public:
enum
{
PercussionTag = 1 << 15,
CustomBankTag = 0xFFFFFFFF
};
//! Total number of chip channels between all running emulators
uint32_t m_numChannels;
//! Just a padding. Reserved.
char _padding[4];
#ifndef ADLMIDI_HW_OPL
//! Running chip emulators
std::vector<AdlMIDI_SPtr<OPLChipBase > > m_chips;
#endif
private:
//! Cached patch data, needed by Touch()
std::vector<adldata> m_insCache;
//! Value written to B0, cached, needed by NoteOff.
/*! Contains Key on/off state, octave block and frequency number values
*/
std::vector<uint32_t> m_keyBlockFNumCache;
//! Cached BD registry value (flags register: DeepTremolo, DeepVibrato, and RhythmMode)
std::vector<uint32_t> m_regBD;
public:
/**
* @brief MIDI bank entry
*/
struct Bank
{
//! MIDI Bank instruments
adlinsdata2 ins[128];
};
typedef BasicBankMap<Bank> BankMap;
//! MIDI bank instruments data
BankMap m_insBanks;
//! MIDI bank-wide setup
AdlBankSetup m_insBankSetup;
public:
//! Blank instrument template
static const adlinsdata2 m_emptyInstrument;
//! Total number of running concurrent emulated chips
uint32_t m_numChips;
//! Currently running embedded bank number. "CustomBankTag" means usign of the custom bank.
uint32_t m_embeddedBank;
//! Total number of needed four-operator channels in all running chips
uint32_t m_numFourOps;
//! Turn global Deep Tremolo mode on
bool m_deepTremoloMode;
//! Turn global Deep Vibrato mode on
bool m_deepVibratoMode;
//! Use Rhythm Mode percussions
bool m_rhythmMode;
//! Carriers-only are scaled by default by volume level. This flag will tell to scale modulators too.
bool m_scaleModulators;
//! Run emulator at PCM rate if that possible. Reduces sounding accuracy, but decreases CPU usage on lower rates.
bool m_runAtPcmRate;
//! Enable soft panning
bool m_softPanning;
//! Just a padding. Reserved.
char _padding2[3];
/**
* @brief Music playing mode
*/
enum MusicMode
{
//! MIDI mode
MODE_MIDI,
//! Id-Software Music mode
MODE_IMF,
//! Creative Music Files mode
MODE_CMF,
//! EA-MUS (a.k.a. RSXX) mode
MODE_RSXX
} m_musicMode;
/**
* @brief Volume models enum
*/
enum VolumesScale
{
//! Generic volume model (linearization of logarithmic scale)
VOLUME_Generic,
//! OPL3 native logarithmic scale
VOLUME_NATIVE,
//! DMX volume scale logarithmic table
VOLUME_DMX,
//! Apoge Sound System volume scaling model
VOLUME_APOGEE,
//! Windows 9x driver volume scale table
VOLUME_9X
} m_volumeScale;
//! Reserved
char _padding3[8];
/**
* @brief Channel categiry enumeration
*/
enum ChanCat
{
//! Regular melodic/percussion channel
ChanCat_Regular = 0,
//! Four-op master
ChanCat_4op_Master = 1,
//! Four-op slave
ChanCat_4op_Slave = 2,
//! Rhythm-mode Bass drum
ChanCat_Rhythm_Bass = 3,
//! Rhythm-mode Snare drum
ChanCat_Rhythm_Snare = 4,
//! Rhythm-mode Tom-Tom
ChanCat_Rhythm_Tom = 5,
//! Rhythm-mode Cymbal
ChanCat_Rhythm_Cymbal = 6,
//! Rhythm-mode Hi-Hat
ChanCat_Rhythm_HiHat = 7,
//! Rhythm-mode Slave channel
ChanCat_Rhythm_Slave = 8
};
//! Category of the channel
/*! 1 = quad-master, 2 = quad-slave, 0 = regular
3 = percussion BassDrum
4 = percussion Snare
5 = percussion Tom
6 = percussion Crash cymbal
7 = percussion Hihat
8 = percussion slave
*/
std::vector<uint32_t> m_channelCategory;
/**
* @brief C.O. Constructor
*/
OPL3();
/**
* @brief Checks are setup locked to be changed on the fly or not
* @return true when setup on the fly is locked
*/
bool setupLocked();
/**
* @brief Choose one of embedded banks
* @param bank ID of the bank
*/
void setEmbeddedBank(uint32_t bank);
/**
* @brief Write data to OPL3 chip register
* @param chip Index of emulated chip. In hardware OPL3 builds, this parameter is ignored
* @param address Register address to write
* @param value Value to write
*/
void writeReg(size_t chip, uint16_t address, uint8_t value);
/**
* @brief Write data to OPL3 chip register
* @param chip Index of emulated chip. In hardware OPL3 builds, this parameter is ignored
* @param address Register address to write
* @param value Value to write
*/
void writeRegI(size_t chip, uint32_t address, uint32_t value);
/**
* @brief Write to soft panning control of OPL3 chip emulator
* @param chip Index of emulated chip.
* @param address Register of channel to write
* @param value Value to write
*/
void writePan(size_t chip, uint32_t address, uint32_t value);
/**
* @brief Off the note in specified chip channel
* @param c Channel of chip (Emulated chip choosing by next formula: [c = ch + (chipId * 23)])
*/
void noteOff(size_t c);
/**
* @brief On the note in specified chip channel with specified frequency of the tone
* @param c1 Channel of chip [or master 4-op channel] (Emulated chip choosing by next formula: [c = ch + (chipId * 23)])
* @param c2 Slave 4-op channel of chip, unused for 2op (Emulated chip choosing by next formula: [c = ch + (chipId * 23)])
* @param hertz Frequency of the tone in hertzes
*/
void noteOn(size_t c1, size_t c2, double hertz);
/**
* @brief Change setup of instrument in specified chip channel
* @param c Channel of chip (Emulated chip choosing by next formula: [c = ch + (chipId * 23)])
* @param volume Volume level (from 0 to 63)
* @param brightness CC74 Brightness level (from 0 to 127)
*/
void touchNote(size_t c, uint8_t volume, uint8_t brightness = 127);
/**
* @brief Set the instrument into specified chip channel
* @param c Channel of chip (Emulated chip choosing by next formula: [c = ch + (chipId * 23)])
* @param instrument Instrument data to set into the chip channel
*/
void setPatch(size_t c, const adldata &instrument);
/**
* @brief Set panpot position
* @param c Channel of chip (Emulated chip choosing by next formula: [c = ch + (chipId * 23)])
* @param value 3-bit panpot value
*/
void setPan(size_t c, uint8_t value);
/**
* @brief Shut up all chip channels
*/
void silenceAll();
/**
* @brief Commit updated flag states to chip registers
*/
void updateChannelCategories();
/**
* @brief commit deepTremolo and deepVibrato flags
*/
void commitDeepFlags();
/**
* @brief Set the volume scaling model
* @param volumeModel Type of volume scale model scale
*/
void setVolumeScaleModel(ADLMIDI_VolumeModels volumeModel);
/**
* @brief Get the volume scaling model
*/
ADLMIDI_VolumeModels getVolumeScaleModel();
#ifndef ADLMIDI_HW_OPL
/**
* @brief Clean up all running emulated chip instances
*/
void clearChips();
#endif
/**
* @brief Reset chip properties and initialize them
* @param emulator Type of chip emulator
* @param PCM_RATE Output sample rate to generate on output
* @param audioTickHandler PCM-accurate clock hook
*/
void reset(int emulator, unsigned long PCM_RATE, void *audioTickHandler);
};
/**
* @brief Hooks of the internal events
*/
struct MIDIEventHooks
{
MIDIEventHooks() :
onNote(NULL),
onNote_userData(NULL),
onDebugMessage(NULL),
onDebugMessage_userData(NULL)
{}
//! Note on/off hooks
typedef void (*NoteHook)(void *userdata, int adlchn, int note, int ins, int pressure, double bend);
NoteHook onNote;
void *onNote_userData;
//! Library internal debug messages
typedef void (*DebugMessageHook)(void *userdata, const char *fmt, ...);
DebugMessageHook onDebugMessage;
void *onDebugMessage_userData;
};
class MIDIplay
{
friend void adl_reset(struct ADL_MIDIPlayer*);
public:
explicit MIDIplay(unsigned long sampleRate = 22050);
~MIDIplay()
{}
void applySetup();
void partialReset();
void resetMIDI();
/**********************Internal structures and classes**********************/
/**
* @brief Persistent settings for each MIDI channel
*/
struct MIDIchannel
{
//! LSB Bank number
uint8_t bank_lsb,
//! MSB Bank number
bank_msb;
//! Current patch number
uint8_t patch;
//! Volume level
uint8_t volume,
//! Expression level
expression;
//! Panning level
uint8_t panning,
//! Vibrato level
vibrato,
//! Channel aftertouch level
aftertouch;
//! Portamento time
uint16_t portamento;
//! Is Pedal sustain active
bool sustain;
//! Is Soft pedal active
bool softPedal;
//! Is portamento enabled
bool portamentoEnable;
//! Source note number used by portamento
int8_t portamentoSource; // note number or -1
//! Portamento rate
double portamentoRate;
//! Per note Aftertouch values
uint8_t noteAftertouch[128];
//! Is note aftertouch has any non-zero value
bool noteAfterTouchInUse;
//! Reserved
char _padding[6];
//! Pitch bend value
int bend;
//! Pitch bend sensitivity
double bendsense;
//! Pitch bend sensitivity LSB value
int bendsense_lsb,
//! Pitch bend sensitivity MSB value
bendsense_msb;
//! Vibrato position value
double vibpos,
//! Vibrato speed value
vibspeed,
//! Vibrato depth value
vibdepth;
//! Vibrato delay time
int64_t vibdelay_us;
//! Last LSB part of RPN value received
uint8_t lastlrpn,
//! Last MSB poart of RPN value received
lastmrpn;
//! Interpret RPN value as NRPN
bool nrpn;
//! Brightness level
uint8_t brightness;
//! Is melodic channel turned into percussion
bool is_xg_percussion;
/**
* @brief Per-Note information
*/
struct NoteInfo
{
//! Note number
uint8_t note;
//! Is note active
bool active;
//! Current pressure
uint8_t vol;
//! Note vibrato (a part of Note Aftertouch feature)
uint8_t vibrato;
//! Tone selected on noteon:
int16_t noteTone;
//! Current tone (!= noteTone if gliding note)
double currentTone;
//! Gliding rate
double glideRate;
//! Patch selected on noteon; index to bank.ins[]
size_t midiins;
//! Is note the percussion instrument
bool isPercussion;
//! Note that plays missing instrument. Doesn't using any chip channels
bool isBlank;
//! Patch selected
const adlinsdata2 *ains;
enum
{
MaxNumPhysChans = 2,
MaxNumPhysItemCount = MaxNumPhysChans
};
/**
* @brief Reference to currently using chip channel
*/
struct Phys
{
//! Destination chip channel
uint16_t chip_chan;
//! ins, inde to adl[]
adldata ains;
//! Is this voice must be detunable?
bool pseudo4op;
void assign(const Phys &oth)
{
ains = oth.ains;
pseudo4op = oth.pseudo4op;
}
bool operator==(const Phys &oth) const
{
return (ains == oth.ains) && (pseudo4op == oth.pseudo4op);
}
bool operator!=(const Phys &oth) const
{
return !operator==(oth);
}
};
//! List of OPL3 channels it is currently occupying.
Phys chip_channels[MaxNumPhysItemCount];
//! Count of used channels.
unsigned chip_channels_count;
Phys *phys_find(unsigned chip_chan)
{
Phys *ph = NULL;
for(unsigned i = 0; i < chip_channels_count && !ph; ++i)
if(chip_channels[i].chip_chan == chip_chan)
ph = &chip_channels[i];
return ph;
}
Phys *phys_find_or_create(uint16_t chip_chan)
{
Phys *ph = phys_find(chip_chan);
if(!ph) {
if(chip_channels_count < MaxNumPhysItemCount) {
ph = &chip_channels[chip_channels_count++];
ph->chip_chan = chip_chan;
}
}
return ph;
}
Phys *phys_ensure_find_or_create(uint16_t chip_chan)
{
Phys *ph = phys_find_or_create(chip_chan);
assert(ph);
return ph;
}
void phys_erase_at(const Phys *ph)
{
intptr_t pos = ph - chip_channels;
assert(pos < static_cast<intptr_t>(chip_channels_count));
for(intptr_t i = pos + 1; i < static_cast<intptr_t>(chip_channels_count); ++i)
chip_channels[i - 1] = chip_channels[i];
--chip_channels_count;
}
void phys_erase(unsigned chip_chan)
{
Phys *ph = phys_find(chip_chan);
if(ph)
phys_erase_at(ph);
}
};
//! Reserved
char _padding2[5];
//! Count of gliding notes in this channel
unsigned gliding_note_count;
//! Active notes in the channel
NoteInfo activenotes[128];
struct activenoteiterator
{
explicit activenoteiterator(NoteInfo *info = NULL)
: ptr(info) {}
activenoteiterator &operator++()
{
if(ptr->note == 127)
ptr = NULL;
else
for(++ptr; ptr && !ptr->active;)
ptr = (ptr->note == 127) ? NULL : (ptr + 1);
return *this;
}
activenoteiterator operator++(int)
{
activenoteiterator pos = *this;
++*this;
return pos;
}
NoteInfo &operator*() const
{ return *ptr; }
NoteInfo *operator->() const
{ return ptr; }
bool operator==(activenoteiterator other) const
{ return ptr == other.ptr; }
bool operator!=(activenoteiterator other) const
{ return ptr != other.ptr; }
operator NoteInfo *() const
{ return ptr; }
private:
NoteInfo *ptr;
};
activenoteiterator activenotes_begin()
{
activenoteiterator it(activenotes);
return (it->active) ? it : ++it;
}
activenoteiterator activenotes_find(uint8_t note)
{
assert(note < 128);
return activenoteiterator(
activenotes[note].active ? &activenotes[note] : NULL);
}
activenoteiterator activenotes_ensure_find(uint8_t note)
{
activenoteiterator it = activenotes_find(note);
assert(it);
return it;
}
std::pair<activenoteiterator, bool> activenotes_insert(uint8_t note)
{
assert(note < 128);
NoteInfo &info = activenotes[note];
bool inserted = !info.active;
if(inserted) info.active = true;
return std::pair<activenoteiterator, bool>(activenoteiterator(&info), inserted);
}
void activenotes_erase(activenoteiterator pos)
{
if(pos)
pos->active = false;
}
bool activenotes_empty()
{
return !activenotes_begin();
}
void activenotes_clear()
{
for(uint8_t i = 0; i < 128; ++i) {
activenotes[i].note = i;
activenotes[i].active = false;
}
}
/**
* @brief Reset channel into initial state
*/
void reset()
{
resetAllControllers();
patch = 0;
vibpos = 0;
bank_lsb = 0;
bank_msb = 0;
lastlrpn = 0;
lastmrpn = 0;
nrpn = false;
is_xg_percussion = false;
}
/**
* @brief Reset all MIDI controllers into initial state
*/
void resetAllControllers()
{
bend = 0;
bendsense_msb = 2;
bendsense_lsb = 0;
updateBendSensitivity();
volume = 100;
expression = 127;
sustain = false;
softPedal = false;
vibrato = 0;
aftertouch = 0;
std::memset(noteAftertouch, 0, 128);
noteAfterTouchInUse = false;
vibspeed = 2 * 3.141592653 * 5.0;
vibdepth = 0.5 / 127;
vibdelay_us = 0;
panning = 64;
portamento = 0;
portamentoEnable = false;
portamentoSource = -1;
portamentoRate = HUGE_VAL;
brightness = 127;
}
/**
* @brief Has channel vibrato to process
* @return
*/
bool hasVibrato()
{
return (vibrato > 0) || (aftertouch > 0) || noteAfterTouchInUse;
}
/**
* @brief Commit pitch bend sensitivity value from MSB and LSB
*/
void updateBendSensitivity()
{
int cent = bendsense_msb * 128 + bendsense_lsb;
bendsense = cent * (1.0 / (128 * 8192));
}
MIDIchannel()
{
activenotes_clear();
gliding_note_count = 0;
reset();
}
};
/**
* @brief Additional information about OPL3 channels
*/
struct AdlChannel
{
struct Location
{
uint16_t MidCh;
uint8_t note;
bool operator==(const Location &l) const
{ return MidCh == l.MidCh && note == l.note; }
bool operator!=(const Location &l) const
{ return !operator==(l); }
};
struct LocationData
{
LocationData *prev, *next;
Location loc;
enum {
Sustain_None = 0x00,
Sustain_Pedal = 0x01,
Sustain_Sostenuto = 0x02,
Sustain_ANY = Sustain_Pedal | Sustain_Sostenuto
};
uint32_t sustained;
char _padding[6];
MIDIchannel::NoteInfo::Phys ins; // a copy of that in phys[]
//! Has fixed sustain, don't iterate "on" timeout
bool fixed_sustain;
//! Timeout until note will be allowed to be killed by channel manager while it is on
int64_t kon_time_until_neglible_us;
int64_t vibdelay_us;
};
//! Time left until sounding will be muted after key off
int64_t koff_time_until_neglible_us;
//! Recently passed instrument, improves a goodness of released but busy channel when matching
MIDIchannel::NoteInfo::Phys recent_ins;
enum { users_max = 128 };
LocationData *users_first, *users_free_cells;
LocationData users_cells[users_max];
unsigned users_size;
bool users_empty() const;
LocationData *users_find(Location loc);
LocationData *users_allocate();
LocationData *users_find_or_create(Location loc);
LocationData *users_insert(const LocationData &x);
void users_erase(LocationData *user);
void users_clear();
void users_assign(const LocationData *users, size_t count);
// For channel allocation:
AdlChannel(): koff_time_until_neglible_us(0)
{
users_clear();
std::memset(&recent_ins, 0, sizeof(MIDIchannel::NoteInfo::Phys));
}
AdlChannel(const AdlChannel &oth): koff_time_until_neglible_us(oth.koff_time_until_neglible_us)
{
if(oth.users_first)
{
users_first = NULL;
users_assign(oth.users_first, oth.users_size);
}
else
users_clear();
}
AdlChannel &operator=(const AdlChannel &oth)
{
koff_time_until_neglible_us = oth.koff_time_until_neglible_us;
users_assign(oth.users_first, oth.users_size);
return *this;
}
/**
* @brief Increases age of active note in microseconds time
* @param us Amount time in microseconds
*/
void addAge(int64_t us);
};
#ifndef ADLMIDI_DISABLE_MIDI_SEQUENCER
/**
* @brief MIDI files player sequencer
*/
MidiSequencer m_sequencer;
/**
* @brief Interface between MIDI sequencer and this library
*/
BW_MidiRtInterface m_sequencerInterface;
/**
* @brief Initialize MIDI sequencer interface
*/
void initSequencerInterface();
#endif //ADLMIDI_DISABLE_MIDI_SEQUENCER
struct Setup
{
int emulator;
bool runAtPcmRate;
unsigned int bankId;
int numFourOps;
unsigned int numChips;
int deepTremoloMode;
int deepVibratoMode;
int rhythmMode;
bool logarithmicVolumes;
int volumeScaleModel;
//unsigned int SkipForward;
int scaleModulators;
bool fullRangeBrightnessCC74;
double delay;
double carry;
/* The lag between visual content and audio content equals */
/* the sum of these two buffers. */
double mindelay;
double maxdelay;
/* For internal usage */
ssize_t tick_skip_samples_delay; /* Skip tick processing after samples count. */
/* For internal usage */
unsigned long PCM_RATE;
};
/**
* @brief MIDI Marker entry
*/
struct MIDI_MarkerEntry
{
//! Label of marker
std::string label;
//! Absolute position in seconds
double pos_time;
//! Absolute position in ticks in the track
uint64_t pos_ticks;
};
//! Available MIDI Channels
std::vector<MIDIchannel> m_midiChannels;
//! CMF Rhythm mode
bool m_cmfPercussionMode;
//! Master volume, controlled via SysEx
uint8_t m_masterVolume;
//! SysEx device ID
uint8_t m_sysExDeviceId;
/**
* @brief MIDI Synthesizer mode
*/
enum SynthMode
{
Mode_GM = 0x00,
Mode_GS = 0x01,
Mode_XG = 0x02,
Mode_GM2 = 0x04
};
//! MIDI Synthesizer mode
uint32_t m_synthMode;
//! Installed function hooks
MIDIEventHooks hooks;
private:
//! Per-track MIDI devices map
std::map<std::string, size_t> m_midiDevices;
//! Current MIDI device per track
std::map<size_t /*track*/, size_t /*channel begin index*/> m_currentMidiDevice;
//! Padding to fix CLanc code model's warning
char _padding[7];
//! Chip channels map
std::vector<AdlChannel> m_chipChannels;
//! Counter of arpeggio processing
size_t m_arpeggioCounter;
#if defined(ADLMIDI_AUDIO_TICK_HANDLER)
//! Audio tick counter
uint32_t m_audioTickCounter;
#endif
//! Local error string
std::string errorStringOut;
//! Missing instruments catches
std::set<size_t> caugh_missing_instruments;
//! Missing melodic banks catches
std::set<size_t> caugh_missing_banks_melodic;
//! Missing percussion banks catches
std::set<size_t> caugh_missing_banks_percussion;
public:
const std::string &getErrorString();
void setErrorString(const std::string &err);
//! OPL3 Chip manager
OPL3 m_synth;
//! Generator output buffer
int32_t m_outBuf[1024];
//! Synthesizer setup
Setup m_setup;
/**
* @brief Load custom bank from file
* @param filename Path to bank file
* @return true on succes
*/
bool LoadBank(const std::string &filename);
/**
* @brief Load custom bank from memory block
* @param data Pointer to memory block where raw bank file is stored
* @param size Size of given memory block
* @return true on succes
*/
bool LoadBank(const void *data, size_t size);
/**
* @brief Load custom bank from opened FileAndMemReader class
* @param fr Instance with opened file
* @return true on succes
*/
bool LoadBank(FileAndMemReader &fr);
#ifndef ADLMIDI_DISABLE_MIDI_SEQUENCER
/**
* @brief MIDI file loading pre-process
* @return true on success, false on failure
*/
bool LoadMIDI_pre();
/**
* @brief MIDI file loading post-process
* @return true on success, false on failure
*/
bool LoadMIDI_post();
/**
* @brief Load music file from a file
* @param filename Path to music file
* @return true on success, false on failure
*/
bool LoadMIDI(const std::string &filename);
/**
* @brief Load music file from the memory block
* @param data pointer to the memory block
* @param size size of memory block
* @return true on success, false on failure
*/
bool LoadMIDI(const void *data, size_t size);
/**
* @brief Periodic tick handler.
* @param s seconds since last call
* @param granularity don't expect intervals smaller than this, in seconds
* @return desired number of seconds until next call
*/
double Tick(double s, double granularity);
#endif //ADLMIDI_DISABLE_MIDI_SEQUENCER
/**
* @brief Process extra iterators like vibrato or arpeggio
* @param s seconds since last call
*/
void TickIterators(double s);
/* RealTime event triggers */
/**
* @brief Reset state of all channels
*/
void realTime_ResetState();
/**
* @brief Note On event
* @param channel MIDI channel
* @param note Note key (from 0 to 127)
* @param velocity Velocity level (from 0 to 127)
* @return true if Note On event was accepted
*/
bool realTime_NoteOn(uint8_t channel, uint8_t note, uint8_t velocity);
/**
* @brief Note Off event
* @param channel MIDI channel
* @param note Note key (from 0 to 127)
*/
void realTime_NoteOff(uint8_t channel, uint8_t note);
/**
* @brief Note aftertouch event
* @param channel MIDI channel
* @param note Note key (from 0 to 127)
* @param atVal After-Touch level (from 0 to 127)
*/
void realTime_NoteAfterTouch(uint8_t channel, uint8_t note, uint8_t atVal);
/**
* @brief Channel aftertouch event
* @param channel MIDI channel
* @param atVal After-Touch level (from 0 to 127)
*/
void realTime_ChannelAfterTouch(uint8_t channel, uint8_t atVal);
/**
* @brief Controller Change event
* @param channel MIDI channel
* @param type Type of controller
* @param value Value of the controller (from 0 to 127)
*/
void realTime_Controller(uint8_t channel, uint8_t type, uint8_t value);
/**
* @brief Patch change
* @param channel MIDI channel
* @param patch Patch Number (from 0 to 127)
*/
void realTime_PatchChange(uint8_t channel, uint8_t patch);
/**
* @brief Pitch bend change
* @param channel MIDI channel
* @param pitch Concoctated raw pitch value
*/
void realTime_PitchBend(uint8_t channel, uint16_t pitch);
/**
* @brief Pitch bend change
* @param channel MIDI channel
* @param msb MSB of pitch value
* @param lsb LSB of pitch value
*/
void realTime_PitchBend(uint8_t channel, uint8_t msb, uint8_t lsb);
/**
* @brief LSB Bank Change CC
* @param channel MIDI channel
* @param lsb LSB value of bank number
*/
void realTime_BankChangeLSB(uint8_t channel, uint8_t lsb);
/**
* @brief MSB Bank Change CC
* @param channel MIDI channel
* @param msb MSB value of bank number
*/
void realTime_BankChangeMSB(uint8_t channel, uint8_t msb);
/**
* @brief Bank Change (united value)
* @param channel MIDI channel
* @param bank Bank number value
*/
void realTime_BankChange(uint8_t channel, uint16_t bank);
/**
* @brief Sets the Device identifier
* @param id 7-bit Device identifier
*/
void setDeviceId(uint8_t id);
/**
* @brief System Exclusive message
* @param msg Raw SysEx Message
* @param size Length of SysEx message
* @return true if message was passed successfully. False on any errors
*/
bool realTime_SysEx(const uint8_t *msg, size_t size);
/**
* @brief Turn off all notes and mute the sound of releasing notes
*/
void realTime_panic();
/**
* @brief Device switch (to extend 16-channels limit of MIDI standard)
* @param track MIDI track index
* @param data Device name
* @param length Length of device name string
*/
void realTime_deviceSwitch(size_t track, const char *data, size_t length);
/**
* @brief Currently selected device index
* @param track MIDI track index
* @return Multiple 16 value
*/
size_t realTime_currentDevice(size_t track);
/**
* @brief Send raw OPL chip command
* @param reg OPL Register
* @param value Value to write
*/
void realTime_rawOPL(uint8_t reg, uint8_t value);
#if defined(ADLMIDI_AUDIO_TICK_HANDLER)
// Audio rate tick handler
void AudioTick(uint32_t chipId, uint32_t rate);
#endif
private:
/**
* @brief Hardware manufacturer (Used for SysEx)
*/
enum
{
Manufacturer_Roland = 0x41,
Manufacturer_Yamaha = 0x43,
Manufacturer_UniversalNonRealtime = 0x7E,
Manufacturer_UniversalRealtime = 0x7F
};
/**
* @brief Roland Mode (Used for SysEx)
*/
enum
{
RolandMode_Request = 0x11,
RolandMode_Send = 0x12
};
/**
* @brief Device model (Used for SysEx)
*/
enum
{
RolandModel_GS = 0x42,
RolandModel_SC55 = 0x45,
YamahaModel_XG = 0x4C
};
/**
* @brief Process generic SysEx events
* @param dev Device ID
* @param realtime Is real-time event
* @param data Raw SysEx data
* @param size Size of given SysEx data
* @return true when event was successfully handled
*/
bool doUniversalSysEx(unsigned dev, bool realtime, const uint8_t *data, size_t size);
/**
* @brief Process events specific to Roland devices
* @param dev Device ID
* @param data Raw SysEx data
* @param size Size of given SysEx data
* @return true when event was successfully handled
*/
bool doRolandSysEx(unsigned dev, const uint8_t *data, size_t size);
/**
* @brief Process events specific to Yamaha devices
* @param dev Device ID
* @param data Raw SysEx data
* @param size Size of given SysEx data
* @return true when event was successfully handled
*/
bool doYamahaSysEx(unsigned dev, const uint8_t *data, size_t size);
private:
/**
* @brief Note Update properties
*/
enum
{
Upd_Patch = 0x1,
Upd_Pan = 0x2,
Upd_Volume = 0x4,
Upd_Pitch = 0x8,
Upd_All = Upd_Pan + Upd_Volume + Upd_Pitch,
Upd_Off = 0x20,
Upd_Mute = 0x40,
Upd_OffMute = Upd_Off + Upd_Mute
};
/**
* @brief Update active note
* @param MidCh MIDI Channel where note is processing
* @param i Iterator that points to active note in the MIDI channel
* @param props_mask Properties to update
* @param select_adlchn Specify chip channel, or -1 - all chip channels used by the note
*/
void noteUpdate(size_t midCh,
MIDIchannel::activenoteiterator i,
unsigned props_mask,
int32_t select_adlchn = -1);
/**
* @brief Update all notes in specified MIDI channel
* @param midCh MIDI channel to update all notes in it
* @param props_mask Properties to update
*/
void noteUpdateAll(size_t midCh, unsigned props_mask);
/**
* @brief Determine how good a candidate this adlchannel would be for playing a note from this instrument.
* @param c Wanted chip channel
* @param ins Instrument wanted to be used in this channel
* @return Calculated coodness points
*/
int64_t calculateChipChannelGoodness(size_t c, const MIDIchannel::NoteInfo::Phys &ins) const;
/**
* @brief A new note will be played on this channel using this instrument.
* @param c Wanted chip channel
* @param ins Instrument wanted to be used in this channel
* Kill existing notes on this channel (or don't, if we do arpeggio)
*/
void prepareChipChannelForNewNote(size_t c, const MIDIchannel::NoteInfo::Phys &ins);
/**
* @brief Kills note that uses wanted channel. When arpeggio is possible, note is evaluating to another channel
* @param from_channel Wanted chip channel
* @param j Chip channel instance
* @param i MIDI Channel active note instance
*/
void killOrEvacuate(
size_t from_channel,
AdlChannel::LocationData *j,
MIDIchannel::activenoteiterator i);
/**
* @brief Off all notes and silence sound
*/
void panic();
/**
* @brief Kill note, sustaining by pedal or sostenuto
* @param MidCh MIDI channel, -1 - all MIDI channels
* @param this_adlchn Chip channel, -1 - all chip channels
* @param sustain_type Type of systain to process
*/
void killSustainingNotes(int32_t midCh = -1,
int32_t this_adlchn = -1,
uint32_t sustain_type = AdlChannel::LocationData::Sustain_ANY);
/**
* @brief Find active notes and mark them as sostenuto-sustained
* @param MidCh MIDI channel, -1 - all MIDI channels
*/
void markSostenutoNotes(int32_t midCh = -1);
/**
* @brief Set RPN event value
* @param MidCh MIDI channel
* @param value 1 byte part of RPN value
* @param MSB is MSB or LSB part of value
*/
void setRPN(size_t midCh, unsigned value, bool MSB);
/**
* @brief Update portamento setup in MIDI channel
* @param midCh MIDI channel where portamento needed to be updated
*/
void updatePortamento(size_t midCh);
/**
* @brief Off the note
* @param midCh MIDI channel
* @param note Note to off
*/
void noteOff(size_t midCh, uint8_t note);
/**
* @brief Update processing of vibrato to amount of seconds
* @param amount Amount value in seconds
*/
void updateVibrato(double amount);
/**
* @brief Update auto-arpeggio
* @param amount Amount value in seconds [UNUSED]
*/
void updateArpeggio(double /*amount*/);
/**
* @brief Update Portamento gliding to amount of seconds
* @param amount Amount value in seconds
*/
void updateGlide(double amount);
public:
/**
* @brief Checks was device name used or not
* @param name Name of MIDI device
* @return Offset of the MIDI Channels, multiple to 16
*/
size_t chooseDevice(const std::string &name);
/**
* @brief Gets a textual description of the state of chip channels
* @param text character pointer for text
* @param attr character pointer for text attributes
* @param size number of characters available to write
*/
void describeChannels(char *text, char *attr, size_t size);
};
// I think, this is useless inside of Library
/*
struct FourChars
{
char ret[4];
FourChars(const char *s)
{
for(unsigned c = 0; c < 4; ++c)
ret[c] = s[c];
}
FourChars(unsigned w) // Little-endian
{
for(unsigned c = 0; c < 4; ++c)
ret[c] = static_cast<int8_t>((w >>(c * 8)) & 0xFF);
}
};
*/
#if defined(ADLMIDI_AUDIO_TICK_HANDLER)
extern void adl_audioTickHandler(void *instance, uint32_t chipId, uint32_t rate);
#endif
/**
* @brief Automatically calculate and enable necessary count of 4-op channels on emulated chips
* @param device Library context
* @param silent Don't re-count channel categories
* @return Always 0
*/
extern int adlCalculateFourOpChannels(MIDIplay *play, bool silent = false);
/**
* @brief Check emulator availability
* @param emulator Emulator ID (ADL_Emulator)
* @return true when emulator is available
*/
extern bool adl_isEmulatorAvailable(int emulator);
/**
* @brief Find highest emulator
* @return The ADL_Emulator enum value which contains ID of highest emulator
*/
extern int adl_getHighestEmulator();
/**
* @brief Find lowest emulator
* @return The ADL_Emulator enum value which contains ID of lowest emulator
*/
extern int adl_getLowestEmulator();
#endif // ADLMIDI_PRIVATE_HPP
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