mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-08 05:51:09 +00:00
9450db3cec
instruments to specific notes. - Changed note velocity to not use the volume curve in recompute_amp(), since this sounds closer to TiMidity++, although I don't believe it's correct MIDI behavior. Also changed expression so that it scales the channel volume before going through the curve. - Reworked load_instrument to be less opaque. - Went through the TiMidity code and removed pretty much all of the SDL_mixer extensions. The only exception would be kill_others(), which I reworked into a kill_key_group() function, which should be useful for DLS instruments in the future. SVN r918 (trunk)
614 lines
14 KiB
C++
614 lines
14 KiB
C++
/*
|
|
TiMidity -- Experimental MIDI to WAVE converter
|
|
Copyright (C) 1995 Tuukka Toivonen <toivonen@clinet.fi>
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
This library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef TIMIDITY_H
|
|
#define TIMIDITY_H
|
|
|
|
#include "doomtype.h"
|
|
#include "zstring.h"
|
|
|
|
class FileReader;
|
|
|
|
namespace Timidity
|
|
{
|
|
|
|
/*
|
|
config.h
|
|
*/
|
|
|
|
/* Acoustic Grand Piano seems to be the usual default instrument. */
|
|
#define DEFAULT_PROGRAM 0
|
|
|
|
/* 9 here is MIDI channel 10, which is the standard percussion channel.
|
|
Some files (notably C:\WINDOWS\CANYON.MID) think that 16 is one too.
|
|
On the other hand, some files know that 16 is not a drum channel and
|
|
try to play music on it. This is now a runtime option, so this isn't
|
|
a critical choice anymore. */
|
|
#define DEFAULT_DRUMCHANNELS (1<<9)
|
|
/*#define DEFAULT_DRUMCHANNELS ((1<<9) | (1<<15))*/
|
|
|
|
/* Default polyphony, and maximum polyphony. */
|
|
#define DEFAULT_VOICES 32
|
|
#define MAX_VOICES 256
|
|
|
|
#define MAXCHAN 16
|
|
#define MAXNOTE 128
|
|
|
|
/* 1000 here will give a control ratio of 22:1 with 22 kHz output.
|
|
Higher CONTROLS_PER_SECOND values allow more accurate rendering
|
|
of envelopes and tremolo. The cost is CPU time. */
|
|
#define CONTROLS_PER_SECOND 1000
|
|
|
|
/* How many bits to use for the fractional part of sample positions.
|
|
This affects tonal accuracy. The entire position counter must fit
|
|
in 32 bits, so with FRACTION_BITS equal to 12, the maximum size of
|
|
a sample is 1048576 samples (2 megabytes in memory). The GUS gets
|
|
by with just 9 bits and a little help from its friends...
|
|
"The GUS does not SUCK!!!" -- a happy user :) */
|
|
#define FRACTION_BITS 12
|
|
|
|
/* For some reason the sample volume is always set to maximum in all
|
|
patch files. Define this for a crude adjustment that may help
|
|
equalize instrument volumes. */
|
|
#define ADJUST_SAMPLE_VOLUMES
|
|
|
|
/* The number of samples to use for ramping out a dying note. Affects
|
|
click removal. */
|
|
#define MAX_DIE_TIME 20
|
|
|
|
/**************************************************************************/
|
|
/* Anything below this shouldn't need to be changed unless you're porting
|
|
to a new machine with other than 32-bit, big-endian words. */
|
|
/**************************************************************************/
|
|
|
|
/* change FRACTION_BITS above, not these */
|
|
#define INTEGER_BITS (32 - FRACTION_BITS)
|
|
#define INTEGER_MASK (0xFFFFFFFF << FRACTION_BITS)
|
|
#define FRACTION_MASK (~ INTEGER_MASK)
|
|
#define MAX_SAMPLE_SIZE (1 << INTEGER_BITS)
|
|
|
|
/* This is enforced by some computations that must fit in an int */
|
|
#define MAX_CONTROL_RATIO 255
|
|
|
|
#define MAX_AMPLIFICATION 800
|
|
|
|
/* The TiMiditiy configuration file */
|
|
#define CONFIG_FILE "timidity.cfg"
|
|
|
|
typedef float sample_t;
|
|
typedef float final_volume_t;
|
|
#define FINAL_VOLUME(v) (v)
|
|
|
|
#define FSCALE(a,b) ((a) * (float)(1<<(b)))
|
|
#define FSCALENEG(a,b) ((a) * (1.0L / (float)(1<<(b))))
|
|
|
|
/* Vibrato and tremolo Choices of the Day */
|
|
#define SWEEP_TUNING 38
|
|
#define VIBRATO_AMPLITUDE_TUNING 1.0
|
|
#define VIBRATO_RATE_TUNING 38
|
|
#define TREMOLO_AMPLITUDE_TUNING 1.0
|
|
#define TREMOLO_RATE_TUNING 38
|
|
|
|
#define SWEEP_SHIFT 16
|
|
#define RATE_SHIFT 5
|
|
|
|
#define VIBRATO_SAMPLE_INCREMENTS 32
|
|
|
|
#ifndef PI
|
|
#define PI 3.14159265358979323846
|
|
#endif
|
|
|
|
#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
|
|
// [RH] MinGW's pow() function is terribly slow compared to VC8's
|
|
// (I suppose because it's using an old version from MSVCRT.DLL).
|
|
// On an Opteron running x86-64 Linux, this also ended up being about
|
|
// 100 cycles faster than libm's pow(), which is why I'm using this
|
|
// for GCC in general and not just for MinGW.
|
|
|
|
extern __inline__ double pow_x87_inline(double x,double y)
|
|
{
|
|
double result;
|
|
|
|
if (y == 0)
|
|
{
|
|
return 1;
|
|
}
|
|
if (x == 0)
|
|
{
|
|
if (y > 0)
|
|
{
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
union { double fp; long long ip; } infinity;
|
|
infinity.ip = 0x7FF0000000000000ll;
|
|
return infinity.fp;
|
|
}
|
|
}
|
|
__asm__ (
|
|
"fyl2x\n\t"
|
|
"fld %%st(0)\n\t"
|
|
"frndint\n\t"
|
|
"fxch\n\t"
|
|
"fsub %%st(1),%%st(0)\n\t"
|
|
"f2xm1\n\t"
|
|
"fld1\n\t"
|
|
"faddp\n\t"
|
|
"fxch\n\t"
|
|
"fld1\n\t"
|
|
"fscale\n\t"
|
|
"fstp %%st(1)\n\t"
|
|
"fmulp\n\t"
|
|
: "=t" (result)
|
|
: "0" (x), "u" (y)
|
|
: "st(1)", "st(7)", "%3", "%4" );
|
|
return result;
|
|
}
|
|
#define pow pow_x87_inline
|
|
#endif
|
|
|
|
/*
|
|
common.h
|
|
*/
|
|
|
|
#define OM_FILEORLUMP 0
|
|
#define OM_LUMP 1
|
|
#define OM_FILE 2
|
|
|
|
extern void add_to_pathlist(const char *s);
|
|
extern void clear_pathlist();
|
|
extern void *safe_malloc(size_t count);
|
|
|
|
FileReader *open_filereader(const char *name, int open, int *plumpnum);
|
|
|
|
/*
|
|
controls.h
|
|
*/
|
|
|
|
enum
|
|
{
|
|
CMSG_INFO,
|
|
CMSG_WARNING,
|
|
CMSG_ERROR
|
|
};
|
|
|
|
enum
|
|
{
|
|
VERB_NORMAL,
|
|
VERB_VERBOSE,
|
|
VERB_NOISY,
|
|
VERB_DEBUG
|
|
};
|
|
|
|
void cmsg(int type, int verbosity_level, const char *fmt, ...);
|
|
|
|
|
|
/*
|
|
instrum.h
|
|
*/
|
|
|
|
struct Sample
|
|
{
|
|
SDWORD
|
|
loop_start, loop_end, data_length,
|
|
sample_rate, low_vel, high_vel, low_freq, high_freq, root_freq;
|
|
SDWORD
|
|
envelope_rate[6], envelope_offset[6];
|
|
float
|
|
volume;
|
|
sample_t *data;
|
|
SDWORD
|
|
tremolo_sweep_increment, tremolo_phase_increment,
|
|
vibrato_sweep_increment, vibrato_control_ratio;
|
|
BYTE
|
|
tremolo_depth, vibrato_depth,
|
|
modes;
|
|
WORD
|
|
panning, scale_factor;
|
|
SWORD
|
|
scale_note;
|
|
bool
|
|
self_nonexclusive;
|
|
BYTE
|
|
key_group;
|
|
};
|
|
|
|
void convert_sample_data(Sample *sample, const void *data);
|
|
void free_instruments();
|
|
|
|
/* Patch definition: */
|
|
enum
|
|
{
|
|
HEADER_SIZE = 12,
|
|
ID_SIZE = 10,
|
|
DESC_SIZE = 60,
|
|
RESERVED_SIZE = 40,
|
|
PATCH_HEADER_RESERVED_SIZE = 36,
|
|
LAYER_RESERVED_SIZE = 40,
|
|
PATCH_DATA_RESERVED_SIZE = 36,
|
|
INST_NAME_SIZE = 16,
|
|
ENVELOPES = 6,
|
|
MAX_LAYERS = 4
|
|
};
|
|
#define GF1_HEADER_TEXT "GF1PATCH110"
|
|
|
|
enum
|
|
{
|
|
PATCH_16 = (1<<0),
|
|
PATCH_UNSIGNED = (1<<1),
|
|
PATCH_LOOPEN = (1<<2),
|
|
PATCH_BIDIR = (1<<3),
|
|
PATCH_BACKWARD = (1<<4),
|
|
PATCH_SUSTAIN = (1<<5),
|
|
PATCH_NO_SRELEASE = (1<<6),
|
|
PATCH_FAST_REL = (1<<7)
|
|
};
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma pack(push, 1)
|
|
#define GCC_PACKED
|
|
#else
|
|
#define GCC_PACKED __attribute__((__packed__))
|
|
#endif
|
|
|
|
struct GF1PatchHeader
|
|
{
|
|
char Header[HEADER_SIZE];
|
|
char GravisID[ID_SIZE]; /* Id = "ID#000002" */
|
|
char Description[DESC_SIZE];
|
|
BYTE Instruments;
|
|
BYTE Voices;
|
|
BYTE Channels;
|
|
WORD WaveForms;
|
|
WORD MasterVolume;
|
|
DWORD DataSize;
|
|
BYTE Reserved[PATCH_HEADER_RESERVED_SIZE];
|
|
} GCC_PACKED;
|
|
|
|
struct GF1InstrumentData
|
|
{
|
|
WORD Instrument;
|
|
char InstrumentName[INST_NAME_SIZE];
|
|
int InstrumentSize;
|
|
BYTE Layers;
|
|
BYTE Reserved[RESERVED_SIZE];
|
|
} GCC_PACKED;
|
|
|
|
struct GF1LayerData
|
|
{
|
|
BYTE LayerDuplicate;
|
|
BYTE Layer;
|
|
int LayerSize;
|
|
BYTE Samples;
|
|
BYTE Reserved[LAYER_RESERVED_SIZE];
|
|
} GCC_PACKED;
|
|
|
|
struct GF1PatchData
|
|
{
|
|
char WaveName[7];
|
|
BYTE Fractions;
|
|
int WaveSize;
|
|
int StartLoop;
|
|
int EndLoop;
|
|
WORD SampleRate;
|
|
int LowFrequency;
|
|
int HighFrequency;
|
|
int RootFrequency;
|
|
SWORD Tune;
|
|
BYTE Balance;
|
|
BYTE EnvelopeRate[6];
|
|
BYTE EnvelopeOffset[6];
|
|
BYTE TremoloSweep;
|
|
BYTE TremoloRate;
|
|
BYTE TremoloDepth;
|
|
BYTE VibratoSweep;
|
|
BYTE VibratoRate;
|
|
BYTE VibratoDepth;
|
|
BYTE Modes;
|
|
SWORD ScaleFrequency;
|
|
WORD ScaleFactor; /* From 0 to 2048 or 0 to 2 */
|
|
BYTE Reserved[PATCH_DATA_RESERVED_SIZE];
|
|
} GCC_PACKED;
|
|
#ifdef _MSC_VER
|
|
#pragma pack(pop)
|
|
#endif
|
|
#undef GCC_PACKED
|
|
|
|
enum
|
|
{
|
|
INST_GUS,
|
|
INST_DLS
|
|
};
|
|
|
|
struct Instrument
|
|
{
|
|
Instrument();
|
|
~Instrument();
|
|
|
|
int type;
|
|
int samples;
|
|
Sample *sample;
|
|
};
|
|
|
|
struct ToneBankElement
|
|
{
|
|
ToneBankElement() :
|
|
note(0), amp(0), pan(0), strip_loop(0), strip_envelope(0), strip_tail(0)
|
|
{}
|
|
|
|
FString name;
|
|
int note, amp, pan, strip_loop, strip_envelope, strip_tail;
|
|
};
|
|
|
|
/* A hack to delay instrument loading until after reading the
|
|
entire MIDI file. */
|
|
#define MAGIC_LOAD_INSTRUMENT ((Instrument *)(-1))
|
|
|
|
enum
|
|
{
|
|
MAXPROG = 128,
|
|
MAXBANK = 128
|
|
};
|
|
|
|
struct ToneBank
|
|
{
|
|
ToneBank();
|
|
~ToneBank();
|
|
|
|
ToneBankElement *tone;
|
|
Instrument *instrument[MAXPROG];
|
|
};
|
|
|
|
|
|
#define SPECIAL_PROGRAM -1
|
|
|
|
extern void pcmap(int *b, int *v, int *p, int *drums);
|
|
|
|
/*
|
|
mix.h
|
|
*/
|
|
|
|
extern void mix_voice(struct Renderer *song, float *buf, struct Voice *v, int c);
|
|
extern int recompute_envelope(struct Voice *v);
|
|
extern void apply_envelope_to_amp(struct Voice *v);
|
|
|
|
/*
|
|
playmidi.h
|
|
*/
|
|
|
|
/* Midi events */
|
|
enum
|
|
{
|
|
ME_NOTEOFF = 0x80,
|
|
ME_NOTEON = 0x90,
|
|
ME_KEYPRESSURE = 0xA0,
|
|
ME_CONTROLCHANGE = 0xB0,
|
|
ME_PROGRAM = 0xC0,
|
|
ME_CHANNELPRESSURE = 0xD0,
|
|
ME_PITCHWHEEL = 0xE0
|
|
};
|
|
|
|
/* Controllers */
|
|
enum
|
|
{
|
|
CTRL_BANK_SELECT = 0,
|
|
CTRL_DATA_ENTRY = 6,
|
|
CTRL_VOLUME = 7,
|
|
CTRL_PAN = 10,
|
|
CTRL_EXPRESSION = 11,
|
|
CTRL_SUSTAIN = 64,
|
|
CTRL_HARMONICCONTENT = 71,
|
|
CTRL_RELEASETIME = 72,
|
|
CTRL_ATTACKTIME = 73,
|
|
CTRL_BRIGHTNESS = 74,
|
|
CTRL_REVERBERATION = 91,
|
|
CTRL_CHORUSDEPTH = 93,
|
|
CTRL_NRPN_LSB = 98,
|
|
CTRL_NRPN_MSB = 99,
|
|
CTRL_RPN_LSB = 100,
|
|
CTRL_RPN_MSB = 101,
|
|
CTRL_ALL_SOUNDS_OFF = 120,
|
|
CTRL_RESET_CONTROLLERS = 121,
|
|
CTRL_ALL_NOTES_OFF = 123
|
|
};
|
|
|
|
/* RPNs */
|
|
enum
|
|
{
|
|
RPN_PITCH_SENS = 0x0000,
|
|
RPN_FINE_TUNING = 0x0001,
|
|
RPN_COARSE_TUNING = 0x0002,
|
|
RPN_RESET = 0x3fff
|
|
};
|
|
|
|
struct Channel
|
|
{
|
|
int
|
|
bank, program, sustain, pitchbend,
|
|
mono, /* one note only on this channel -- not implemented yet */
|
|
pitchsens;
|
|
WORD
|
|
volume, expression;
|
|
SWORD
|
|
panning;
|
|
WORD
|
|
rpn, nrpn;
|
|
bool
|
|
nrpn_mode;
|
|
float
|
|
pitchfactor; /* precomputed pitch bend factor to save some fdiv's */
|
|
};
|
|
|
|
/* Causes the instrument's default panning to be used. */
|
|
#define NO_PANNING -1
|
|
/* envelope points */
|
|
#define MAXPOINT 6
|
|
|
|
struct Voice
|
|
{
|
|
BYTE
|
|
status, channel, note, velocity;
|
|
Sample *sample;
|
|
float
|
|
orig_frequency, frequency;
|
|
int
|
|
sample_offset, sample_increment,
|
|
envelope_volume, envelope_target, envelope_increment,
|
|
tremolo_sweep, tremolo_sweep_position,
|
|
tremolo_phase, tremolo_phase_increment,
|
|
vibrato_sweep, vibrato_sweep_position;
|
|
|
|
final_volume_t left_mix, right_mix;
|
|
|
|
float
|
|
left_amp, right_amp, tremolo_volume;
|
|
int
|
|
vibrato_sample_increment[VIBRATO_SAMPLE_INCREMENTS];
|
|
int
|
|
vibrato_phase, vibrato_control_ratio, vibrato_control_counter,
|
|
envelope_stage, control_counter, panning, panned;
|
|
|
|
};
|
|
|
|
/* Voice status options: */
|
|
enum
|
|
{
|
|
VOICE_FREE,
|
|
VOICE_ON,
|
|
VOICE_SUSTAINED,
|
|
VOICE_OFF,
|
|
VOICE_DIE
|
|
};
|
|
|
|
/* Voice panned options: */
|
|
enum
|
|
{
|
|
PANNED_MYSTERY,
|
|
PANNED_LEFT,
|
|
PANNED_RIGHT,
|
|
PANNED_CENTER
|
|
};
|
|
/* Anything but PANNED_MYSTERY only uses the left volume */
|
|
|
|
/* Envelope stages: */
|
|
enum
|
|
{
|
|
ATTACK,
|
|
HOLD,
|
|
DECAY,
|
|
RELEASE,
|
|
RELEASEB,
|
|
RELEASEC
|
|
};
|
|
|
|
#define ISDRUMCHANNEL(c) ((drumchannels & (1<<(c))))
|
|
|
|
/*
|
|
resample.h
|
|
*/
|
|
|
|
extern sample_t *resample_voice(struct Renderer *song, Voice *v, int *countptr);
|
|
extern void pre_resample(struct Renderer *song, Sample *sp);
|
|
|
|
/*
|
|
tables.h
|
|
*/
|
|
|
|
#define sine(x) (sin((2*PI/1024.0) * (x)))
|
|
#define note_to_freq(x) (float(8175.7989473096690661233836992789 * pow(2.0, (x) / 12.0)))
|
|
#define calc_vol(x) (pow(2.0,((x)*6.0 - 6.0)))
|
|
|
|
/*
|
|
timidity.h
|
|
*/
|
|
struct DLS_Data;
|
|
int LoadConfig(const char *filename);
|
|
extern int LoadConfig();
|
|
extern void FreeAll();
|
|
|
|
extern ToneBank *tonebank[MAXBANK];
|
|
extern ToneBank *drumset[MAXBANK];
|
|
|
|
struct Renderer
|
|
{
|
|
float rate;
|
|
DLS_Data *patches;
|
|
Instrument *default_instrument;
|
|
int default_program;
|
|
int resample_buffer_size;
|
|
sample_t *resample_buffer;
|
|
Channel channel[16];
|
|
Voice voice[MAX_VOICES];
|
|
int control_ratio, amp_with_poly;
|
|
int drumchannels;
|
|
int adjust_panning_immediately;
|
|
int voices;
|
|
int lost_notes, cut_notes;
|
|
|
|
Renderer(float sample_rate);
|
|
~Renderer();
|
|
|
|
void HandleEvent(int status, int parm1, int parm2);
|
|
void HandleLongMessage(const BYTE *data, int len);
|
|
void HandleController(int chan, int ctrl, int val);
|
|
void ComputeOutput(float *buffer, int num_samples);
|
|
void MarkInstrument(int bank, int percussion, int instr);
|
|
void Reset();
|
|
|
|
int load_missing_instruments();
|
|
int set_default_instrument(const char *name);
|
|
int convert_tremolo_sweep(BYTE sweep);
|
|
int convert_vibrato_sweep(BYTE sweep, int vib_control_ratio);
|
|
int convert_tremolo_rate(BYTE rate);
|
|
int convert_vibrato_rate(BYTE rate);
|
|
|
|
void recompute_amp(Voice *v);
|
|
void kill_key_group(int voice);
|
|
float calculate_scaled_frequency(Sample *sample, int note);
|
|
void start_note(int chan, int note, int vel, int voice);
|
|
|
|
void note_on(int chan, int note, int vel);
|
|
void note_off(int chan, int note, int vel);
|
|
void all_notes_off(int chan);
|
|
void all_sounds_off(int chan);
|
|
void adjust_pressure(int chan, int note, int amount);
|
|
void adjust_panning(int chan);
|
|
void drop_sustain(int chan);
|
|
void adjust_pitchbend(int chan);
|
|
void adjust_volume(int chan);
|
|
|
|
void reset_voices();
|
|
void reset_controllers(int chan);
|
|
void reset_midi();
|
|
|
|
void select_sample(int voice, Instrument *instr, int vel);
|
|
void recompute_freq(int voice);
|
|
|
|
void kill_note(int voice);
|
|
void finish_note(int voice);
|
|
|
|
void DataEntryCoarseRPN(int chan, int rpn, int val);
|
|
void DataEntryFineRPN(int chan, int rpn, int val);
|
|
void DataEntryCoarseNRPN(int chan, int nrpn, int val);
|
|
void DataEntryFineNRPN(int chan, int nrpn, int val);
|
|
};
|
|
|
|
}
|
|
#endif
|