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libunsf.c
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/*
* libunsf is a library that can be used to break up sound fonts into
* GUS type patch files.
*
* license: cc0
*
* To the extent possible under law, the person who associated CC0 with
* unsf has waived all copyright and related or neighboring rights
* to unsf.
*
* You should have received a copy of the CC0 legal code along with this
* work. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
*
*/
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#ifdef _WIN32
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#elif defined(__OS2__)
#define INCL_DOS
#define INCL_DOSERRORS
#include <os2.h>
#include <io.h>
#else
#include <unistd.h>
#endif
#include "libunsf.h"
#ifndef HAVE_STRTOK_R
#define strtok_r unsf_strtok_r
#include "strtok_r.h"
#endif
#ifdef _WIN32
#define strdup _strdup
#endif
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
#undef MIN
#undef MAX
#undef MID
#define MIN(x, y) (((x) < (y)) ? (x) : (y))
#define MAX(x, y) (((x) > (y)) ? (x) : (y))
#define MID(x, y, z) MAX((x), MIN((y), (z)))
#define LINKED_SAMPLE 8
#define LEFT_SAMPLE 4
#define RIGHT_SAMPLE 2
#define MONO_SAMPLE 1
#define UNSF_RANGE 128
/* SoundFont parameters for the current sample */
typedef struct SF_Meta {
int mode;
int start, end;
int loop_start, loop_end;
int mod_env_to_pitch;
int sustain_mod_env;
int key, tune;
int pan;
int keyscale;
int keymin, keymax;
int velmin, velmax;
int delay_vol_env;
int attack_vol_env;
int hold_vol_env;
int decay_vol_env;
int release_vol_env;
int sustain_level;
int exclusiveClass;
int chorusEffectsSend;
int reverbEffectsSend;
int initialAttenuation;
int modLfoToPitch;
int vibLfoToPitch;
int velocity;
int keynum;
int keynumToModEnvHold;
int keynumToModEnvDecay;
int keynumToVolEnvHold;
int keynumToVolEnvDecay;
int modLfoToVolume;
int delayModLFO;
int freqModLFO;
int delayVibLFO;
int freqVibLFO;
int delayModEnv;
int attackModEnv;
int holdModEnv;
int decayModEnv;
int releaseModEnv;
int instrument_look_index;
int instrument_unused5;
int sample_look_index;
short initialFilterQ;
short initialFilterFc;
short modEnvToFilterFc;
short modLfoToFilterFc;
} SF_Meta;
typedef struct SP_Meta {
unsigned int volume;
int delayModLFO;
short resonance;
short modEnvToFilterFc;
short modLfoToFilterFc;
short modEnvToPitch;
short cutoff_freq;
int freq_center;
int vibrato_depth, vibrato_delay;
unsigned char vibrato_control_ratio, vibrato_sweep_increment;
int tremolo_depth;
unsigned char tremolo_phase_increment, tremolo_sweep_increment;
int lfo_depth;
short lfo_phase_increment; /* lfo_phase_increment is actually frequency */
} SP_Meta;
typedef struct VelocityRangeList {
int range_count;
unsigned char velmin[UNSF_RANGE];
unsigned char velmax[UNSF_RANGE];
unsigned char mono_patches[UNSF_RANGE];
unsigned char left_patches[UNSF_RANGE];
unsigned char right_patches[UNSF_RANGE];
unsigned char other_patches[UNSF_RANGE];
} VelocityRangeList;
typedef struct SampleBank {
int tonebank[UNSF_RANGE];
char *tonebank_name[UNSF_RANGE];
char *voice_name[UNSF_RANGE][UNSF_RANGE];
int voice_samples_mono[UNSF_RANGE][UNSF_RANGE];
int voice_samples_left[UNSF_RANGE][UNSF_RANGE];
int voice_samples_right[UNSF_RANGE][UNSF_RANGE];
VelocityRangeList *voice_velocity[UNSF_RANGE][UNSF_RANGE];
char *drumset_name[UNSF_RANGE];
char *drumset_short_name[UNSF_RANGE];
char *drum_name[UNSF_RANGE][UNSF_RANGE];
int drum_samples_mono[UNSF_RANGE][UNSF_RANGE];
int drum_samples_left[UNSF_RANGE][UNSF_RANGE];
int drum_samples_right[UNSF_RANGE][UNSF_RANGE];
VelocityRangeList *drum_velocity[UNSF_RANGE][UNSF_RANGE];
char cpyrt[256];
} SampleBank;
/* SoundFont chunk format and ID values */
typedef struct RIFF_CHUNK {
int size;
int id;
int type;
int end;
} RIFF_CHUNK;
/* SoundFont preset headers */
typedef struct sfPresetHeader {
char achPresetName[20];
unsigned short wPreset;
unsigned short wBank;
unsigned short wPresetBagNdx;
unsigned int dwLibrary;
unsigned int dwGenre;
unsigned int dwMorphology;
} sfPresetHeader;
/* SoundFont preset indexes */
typedef struct sfPresetBag {
unsigned short wGenNdx;
unsigned short wModNdx;
} sfPresetBag;
/* SoundFont preset generators */
typedef struct rangesType {
#ifndef WORDS_BIGENDIAN
unsigned char byLo;
unsigned char byHi;
#else
unsigned char byHi;
unsigned char byLo;
#endif
} rangesType;
typedef union genAmountType {
rangesType ranges;
short shAmount;
unsigned short wAmount;
} genAmountType;
typedef struct sfGenList {
unsigned short sfGenOper;
genAmountType genAmount;
} sfGenList;
/* SoundFont instrument headers */
typedef struct sfInst {
char achInstName[20];
unsigned short wInstBagNdx;
} sfInst;
/* SoundFont instrument indexes */
typedef struct sfInstBag {
unsigned short wInstGenNdx;
unsigned short wInstModNdx;
} sfInstBag;
/* SoundFont sample headers */
typedef struct sfSample {
char achSampleName[20];
unsigned int dwStart;
unsigned int dwEnd;
unsigned int dwStartloop;
unsigned int dwEndloop;
unsigned int dwSampleRate;
unsigned char byOriginalKey;
signed char chCorrection;
unsigned short wSampleLink;
unsigned short sfSampleType; /* 1 mono,2 right,4 left,linked 8,0x8000=ROM */
} sfSample;
/* list of the layers waiting to be dealt with */
typedef struct EMPTY_WHITE_ROOM {
sfSample *sample;
sfGenList *igen;
sfGenList *pgen;
sfGenList *global_izone;
sfGenList *global_pzone;
int igen_count;
int pgen_count;
int global_izone_count;
int global_pzone_count;
float volume;
int stereo_mode;
} EMPTY_WHITE_ROOM;
#define MAX_WAITING 256
#define CID(a, b, c, d) (((d)<<24)+((c)<<16)+((b)<<8)+((a)))
#define CID_RIFF CID('R','I','F','F')
#define CID_LIST CID('L','I','S','T')
#define CID_INFO CID('I','N','F','O')
#define CID_sdta CID('s','d','t','a')
#define CID_snam CID('s','n','a','m')
#define CID_smpl CID('s','m','p','l')
#define CID_pdta CID('p','d','t','a')
#define CID_phdr CID('p','h','d','r')
#define CID_pbag CID('p','b','a','g')
#define CID_pmod CID('p','m','o','d')
#define CID_pgen CID('p','g','e','n')
#define CID_inst CID('i','n','s','t')
#define CID_ibag CID('i','b','a','g')
#define CID_imod CID('i','m','o','d')
#define CID_igen CID('i','g','e','n')
#define CID_shdr CID('s','h','d','r')
#define CID_ifil CID('i','f','i','l')
#define CID_isng CID('i','s','n','g')
#define CID_irom CID('i','r','o','m')
#define CID_iver CID('i','v','e','r')
#define CID_INAM CID('I','N','A','M')
#define CID_IPRD CID('I','P','R','D')
#define CID_ICOP CID('I','C','O','P')
#define CID_sfbk CID('s','f','b','k')
#define CID_ICRD CID('I','C','R','D')
#define CID_IENG CID('I','E','N','G')
#define CID_ICMT CID('I','C','M','T')
#define CID_ISFT CID('I','S','F','T')
/* SoundFont generator types */
#define SFGEN_startAddrsOffset 0
#define SFGEN_endAddrsOffset 1
#define SFGEN_startloopAddrsOffset 2
#define SFGEN_endloopAddrsOffset 3
#define SFGEN_startAddrsCoarseOffset 4
#define SFGEN_modLfoToPitch 5
#define SFGEN_vibLfoToPitch 6
#define SFGEN_modEnvToPitch 7
#define SFGEN_initialFilterFc 8
#define SFGEN_initialFilterQ 9
#define SFGEN_modLfoToFilterFc 10
#define SFGEN_modEnvToFilterFc 11
#define SFGEN_endAddrsCoarseOffset 12
#define SFGEN_modLfoToVolume 13
#define SFGEN_unused1 14
#define SFGEN_chorusEffectsSend 15
#define SFGEN_reverbEffectsSend 16
#define SFGEN_pan 17
#define SFGEN_unused2 18
#define SFGEN_unused3 19
#define SFGEN_unused4 20
#define SFGEN_delayModLFO 21
#define SFGEN_freqModLFO 22
#define SFGEN_delayVibLFO 23
#define SFGEN_freqVibLFO 24
#define SFGEN_delayModEnv 25
#define SFGEN_attackModEnv 26
#define SFGEN_holdModEnv 27
#define SFGEN_decayModEnv 28
#define SFGEN_sustainModEnv 29
#define SFGEN_releaseModEnv 30
#define SFGEN_keynumToModEnvHold 31
#define SFGEN_keynumToModEnvDecay 32
#define SFGEN_delayVolEnv 33
#define SFGEN_attackVolEnv 34
#define SFGEN_holdVolEnv 35
#define SFGEN_decayVolEnv 36
#define SFGEN_sustainVolEnv 37
#define SFGEN_releaseVolEnv 38
#define SFGEN_keynumToVolEnvHold 39
#define SFGEN_keynumToVolEnvDecay 40
#define SFGEN_instrument 41
#define SFGEN_reserved1 42
#define SFGEN_keyRange 43
#define SFGEN_velRange 44
#define SFGEN_startloopAddrsCoarse 45
#define SFGEN_keynum 46
#define SFGEN_velocity 47
#define SFGEN_initialAttenuation 48
#define SFGEN_reserved2 49
#define SFGEN_endloopAddrsCoarse 50
#define SFGEN_coarseTune 51
#define SFGEN_fineTune 52
#define SFGEN_sampleID 53
#define SFGEN_sampleModes 54
#define SFGEN_reserved3 55
#define SFGEN_scaleTuning 56
#define SFGEN_exclusiveClass 57
#define SFGEN_overridingRootKey 58
#define SFGEN_unused5 59
#define SFGEN_endOper 60
/*================================================================
* SoundFont layer structure
*================================================================*/
enum {
SF_startAddrs, /* 0 sample start address -4 (0to*0xffffff)*/
SF_endAddrs, /* 1 */
SF_startloopAddrs, /* 2 loop start address -4 (0 to * 0xffffff) */
SF_endloopAddrs, /* 3 loop end address -3 (0 to * 0xffffff) */
SF_startAddrsHi, /* 4 high word of startAddrs */
SF_lfo1ToPitch, /* 5 main fm: lfo1-> pitch */
SF_lfo2ToPitch, /* 6 aux fm: lfo2-> pitch */
SF_env1ToPitch, /* 7 pitch env: env1(aux)-> pitch */
SF_initialFilterFc, /* 8 initial filter cutoff */
SF_initialFilterQ, /* 9 filter Q */
SF_lfo1ToFilterFc, /* 10 filter modulation: lfo1->filter*cutoff */
SF_env1ToFilterFc, /* 11 filter env: env1(aux)->filter * cutoff */
SF_endAddrsHi, /* 12 high word of endAddrs */
SF_lfo1ToVolume, /* 13 tremolo: lfo1-> volume */
SF_env2ToVolume, /* 14 Env2Depth: env2-> volume */
SF_chorusEffectsSend, /* 15 chorus */
SF_reverbEffectsSend, /* 16 reverb */
SF_panEffectsSend, /* 17 pan */
SF_auxEffectsSend, /* 18 pan auxdata (internal) */
SF_sampleVolume, /* 19 used internally */
SF_unused3, /* 20 */
SF_delayLfo1, /* 21 delay 0x8000-n*(725us) */
SF_freqLfo1, /* 22 frequency */
SF_delayLfo2, /* 23 delay 0x8000-n*(725us) */
SF_freqLfo2, /* 24 frequency */
SF_delayEnv1, /* 25 delay 0x8000 - n(725us) */
SF_attackEnv1, /* 26 attack */
SF_holdEnv1, /* 27 hold */
SF_decayEnv1, /* 28 decay */
SF_sustainEnv1, /* 29 sustain */
SF_releaseEnv1, /* 30 release */
SF_autoHoldEnv1, /* 31 */
SF_autoDecayEnv1, /* 32 */
SF_delayEnv2, /* 33 delay 0x8000 - n(725us) */
SF_attackEnv2, /* 34 attack */
SF_holdEnv2, /* 35 hold */
SF_decayEnv2, /* 36 decay */
SF_sustainEnv2, /* 37 sustain */
SF_releaseEnv2, /* 38 release */
SF_autoHoldEnv2, /* 39 */
SF_autoDecayEnv2, /* 40 */
SF_instrument, /* 41 */
SF_nop, /* 42 */
SF_keyRange, /* 43 */
SF_velRange, /* 44 */
SF_startloopAddrsHi, /* 45 high word of startloopAddrs */
SF_keynum, /* 46 */
SF_velocity, /* 47 */
SF_initAtten, /* 48 */
SF_keyTuning, /* 49 */
SF_endloopAddrsHi, /* 50 high word of endloopAddrs */
SF_coarseTune, /* 51 */
SF_fineTune, /* 52 */
SF_sampleId, /* 53 */
SF_sampleFlags, /* 54 */
SF_samplePitch, /* 55 SF1 only */
SF_scaleTuning, /* 56 */
SF_keyExclusiveClass, /* 57 */
SF_rootKey, /* 58 */
SF_EOF /* 59 */
};
/* error handling macro */
#define BAD_ALLOCATE() \
{ \
fprintf(stderr, "Error: cannot allocate memory\n"); \
exit(1); /* FIXME: library must NOT exit() */ \
}
#define TO_HZ(abscents) (int)(8.176 * pow(2.0,(double)(abscents)/1200.0))
#define TO_HZ20(abscents) (int)(20 * 8.176 * pow(2.0,(double)(abscents)/1200.0))
static const unsigned int freq_table[UNSF_RANGE] =
{
8176, 8662, 9177, 9723,
10301, 10913, 11562, 12250,
12978, 13750, 14568, 15434,
16352, 17324, 18354, 19445,
20602, 21827, 23125, 24500,
25957, 27500, 29135, 30868,
32703, 34648, 36708, 38891,
41203, 43654, 46249, 48999,
51913, 55000, 58270, 61735,
65406, 69296, 73416, 77782,
82407, 87307, 92499, 97999,
103826, 110000, 116541, 123471,
130813, 138591, 146832, 155563,
164814, 174614, 184997, 195998,
207652, 220000, 233082, 246942,
261626, 277183, 293665, 311127,
329628, 349228, 369994, 391995,
415305, 440000, 466164, 493883,
523251, 554365, 587330, 622254,
659255, 698456, 739989, 783991,
830609, 880000, 932328, 987767,
1046502, 1108731, 1174659, 1244508,
1318510, 1396913, 1479978, 1567982,
1661219, 1760000, 1864655, 1975533,
2093005, 2217461, 2349318, 2489016,
2637020, 2793826, 2959955, 3135963,
3322438, 3520000, 3729310, 3951066,
4186009, 4434922, 4698636, 4978032,
5274041, 5587652, 5919911, 6271927,
6644875, 7040000, 7458620, 7902133,
8372018, 8869844, 9397273, 9956063,
10548082, 11175303, 11839822, 12543854
};
static const double bend_fine[256] = {
1, 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
};
static const double bend_coarse[UNSF_RANGE] = {
1, 1.0594630943592953, 1.122462048309373, 1.189207115002721,
1.2599210498948732, 1.3348398541700344, 1.4142135623730951, 1.4983070768766815,
1.5874010519681994, 1.681792830507429, 1.7817974362806785, 1.8877486253633868,
2, 2.1189261887185906, 2.244924096618746, 2.3784142300054421,
2.5198420997897464, 2.6696797083400687, 2.8284271247461903, 2.996614153753363,
3.1748021039363992, 3.363585661014858, 3.5635948725613571, 3.7754972507267741,
4, 4.2378523774371812, 4.4898481932374912, 4.7568284600108841,
5.0396841995794928, 5.3393594166801366, 5.6568542494923806, 5.993228307506727,
6.3496042078727974, 6.727171322029716, 7.1271897451227151, 7.5509945014535473,
8, 8.4757047548743625, 8.9796963864749824, 9.5136569200217682,
10.079368399158986, 10.678718833360273, 11.313708498984761, 11.986456615013454,
12.699208415745595, 13.454342644059432, 14.25437949024543, 15.101989002907095,
16, 16.951409509748721, 17.959392772949972, 19.027313840043536,
20.158736798317967, 21.357437666720553, 22.627416997969522, 23.972913230026901,
25.398416831491197, 26.908685288118864, 28.508758980490853, 30.203978005814196,
32, 33.902819019497443, 35.918785545899944, 38.054627680087073,
40.317473596635935, 42.714875333441107, 45.254833995939045, 47.945826460053802,
50.796833662982394, 53.817370576237728, 57.017517960981706, 60.407956011628393,
64, 67.805638038994886, 71.837571091799887, 76.109255360174146,
80.63494719327187, 85.429750666882214, 90.509667991878089, 95.891652920107603,
101.59366732596479, 107.63474115247546, 114.03503592196341, 120.81591202325679,
128, 135.61127607798977, 143.67514218359977, 152.21851072034829,
161.26989438654374, 170.85950133376443, 181.01933598375618, 191.78330584021521,
203.18733465192958, 215.26948230495091, 228.07007184392683, 241.63182404651357,
256, 271.22255215597971, 287.35028436719938, 304.43702144069658,
322.53978877308765, 341.71900266752868, 362.03867196751236, 383.56661168043064,
406.37466930385892, 430.53896460990183, 456.14014368785394, 483.26364809302686,
512, 542.44510431195943, 574.70056873439876, 608.87404288139317,
645.0795775461753, 683.43800533505737, 724.07734393502471, 767.13322336086128,
812.74933860771785, 861.07792921980365, 912.28028737570787, 966.52729618605372,
1024, 1084.8902086239189, 1149.4011374687975, 1217.7480857627863,
1290.1591550923506, 1366.8760106701147, 1448.1546878700494, 1534.2664467217226
};
/* reads a byte from the input file */
static int get8(FILE *f) {
return getc(f);
}
/* reads a word from the input file (little endian) */
static int get16(FILE *f) {
int b1, b2;
b1 = get8(f);
b2 = get8(f);
return ((b2 << 8) | b1);
}
/* reads a int from the input file (little endian) */
static int get32(FILE *f) {
int b1, b2, b3, b4;
b1 = get8(f);
b2 = get8(f);
b3 = get8(f);
b4 = get8(f);
return ((b4 << 24) | (b3 << 16) | (b2 << 8) | b1);
}
/* calculates the file offset for the end of a chunk */
static void calc_end(RIFF_CHUNK *chunk, FILE *f) {
chunk->end = ftell(f) + chunk->size + (chunk->size & 1);
}
/* reads and displays a SoundFont text/copyright message */
static void print_sf_string(UnSF_Options *options, FILE *f, const char *title, int opt_no_write, SampleBank *samplebank) {
char buf[256];
char ch;
int i = 0;
do {
ch = get8(f);
buf[i++] = ch;
} while ((ch) && (i < 256));
if (i & 1)
get8(f);
if (!strncmp(title, "Made", 4)) {
strcpy(samplebank->cpyrt, "Made by ");
strcat(samplebank->cpyrt, buf);
}
if (!opt_no_write) fprintf(options->cfg_fd, "# %-12s%s\n", title, buf);
}
static char *getname(char *p) {
size_t i, j, e;
static char buf[21];
strncpy(buf, p, 20);
buf[20] = 0;
for (i = 19; i > 4 && buf[i] == ' '; i--) {
buf[i] = 0;
}
e = i + 1;
if (e < 5) return buf;
for (i = 0; i < e; i++) {
if (buf[i] == '/') {
if (i) buf[i] = '.';
else buf[i] = ' ';
}
else if (buf[i] == '\\') buf[i] = ' ';
else if (buf[i] == '#') buf[i] = ' ';
else if (buf[i] == '|') buf[i] = ' ';
else if (buf[i] == '&') buf[i] = ' ';
else if (buf[i] == '*') buf[i] = ' ';
else if (buf[i] == '!') buf[i] = ' ';
else if (buf[i] == '\'') buf[i] = ' ';
else if (buf[i] == '"') buf[i] = ' ';
else if (buf[i] == '?') buf[i] = ' ';
else if (buf[i] == '~') buf[i] = ' ';
else if (buf[i] == '[') buf[i] = '-';
else if (buf[i] == ']') buf[i] = ' ';
else if (buf[i] == '(') buf[i] = '-';
else if (buf[i] == ')') buf[i] = ' ';
else if (buf[i] == '/') buf[i] = '_';
else if (buf[i] == ':') buf[i] = '_';
else if (buf[i] == '<') buf[i] = '_';
else if (buf[i] == '>') buf[i] = ' ';
}
for (i = 0; i < e; i++) {
if (buf[i] == ' ') {
for (j = i; j < e; j++)
buf[j] = buf[j + 1];
e--;
}
}
for (i = 0; i < e; i++) {
if (buf[i] == ' ') {
for (j = i; j < e; j++)
buf[j] = buf[j + 1];
e--;
}
}
e = strlen(buf);
while (e > 3 && buf[e - 1] == ' ') {
buf[e - 1] = '\0';
e--;
}
return buf;
}
static void
record_velocity_range(UnSF_Options *options, SampleBank *sample_bank, int drum, int banknum, int program, int velmin,
int velmax, int type) {
int i, count;
VelocityRangeList *vlist;
char *name;
if (drum) {
vlist = sample_bank->drum_velocity[banknum][program];
name = sample_bank->drum_name[banknum][program];
} else {
vlist = sample_bank->voice_velocity[banknum][program];
name = sample_bank->voice_name[banknum][program];
}
if (!vlist) {
vlist = (VelocityRangeList *) malloc(sizeof(VelocityRangeList));
if (!vlist) BAD_ALLOCATE();
if (drum) sample_bank->drum_velocity[banknum][program] = vlist;
else sample_bank->voice_velocity[banknum][program] = vlist;
vlist->range_count = 0;
}
count = vlist->range_count;
for (i = 0; i < count; i++) {
if (vlist->velmin[i] == velmin && vlist->velmax[i] == velmax) break;
}
if (i >= UNSF_RANGE) return;
vlist->velmin[i] = velmin;
vlist->velmax[i] = velmax;
if (i == count) {
vlist->mono_patches[i] = 0;
vlist->left_patches[i] = 0;
vlist->right_patches[i] = 0;
vlist->other_patches[i] = 0;
vlist->range_count++;
}
if (type == RIGHT_SAMPLE) vlist->right_patches[i]++;
else if (type == LEFT_SAMPLE) vlist->left_patches[i]++;
else if (type == MONO_SAMPLE) vlist->mono_patches[i]++;
else {
vlist->mono_patches[i]++;
vlist->other_patches[i]++;
}
if (options->opt_veryverbose)
printf("%s#%d velocity range %d-%d for %s chan %s has %d patches\n", (i == count) ? "new " : "",
vlist->range_count, velmin, velmax,
name, (type == LEFT_SAMPLE) ? "left" : (type == RIGHT_SAMPLE) ? "right" : "mono",
(type == RIGHT_SAMPLE) ? vlist->right_patches[i] : (type == LEFT_SAMPLE) ? vlist->left_patches[i] :
vlist->mono_patches[i]);
}
/* gets facts and names */
static int grab_soundfont_banks(UnSF_Options *options, int sf_num_presets, sfPresetHeader *sf_presets,
sfPresetBag *sf_preset_indexes, sfGenList *sf_preset_generators,
sfInst *sf_instruments, sfInstBag *sf_instrument_indexes,
sfGenList *sf_instrument_generators, sfSample *sf_samples, SampleBank *sample_bank
) {
sfPresetBag *pindex;
sfGenList *pgen;
sfInst *iheader;
sfInstBag *iindex;
sfGenList *igen;
sfSample *sample;
int pindex_count;
int pgen_count;
int iindex_count;
int igen_count;
int pnum, inum, jnum, lnum, drum;
int wanted_patch, wanted_bank;
int keymin, keymax, drumnum;
int velmin, velmax;
int i, j;
char *s;
char tmpname[80];
for (i = 0; i < UNSF_RANGE; i++) {
sample_bank->tonebank[i] = FALSE;
sample_bank->drumset_name[i] = NULL;
sample_bank->drumset_short_name[i] = NULL;
for (j = 0; j < UNSF_RANGE; j++) {
sample_bank->voice_name[i][j] = NULL;
sample_bank->voice_samples_mono[i][j] = 0;
sample_bank->voice_samples_left[i][j] = 0;
sample_bank->voice_samples_right[i][j] = 0;
sample_bank->voice_velocity[i][j] = NULL;
sample_bank->drum_name[i][j] = NULL;
sample_bank->drum_samples_mono[i][j] = 0;
sample_bank->drum_samples_left[i][j] = 0;
sample_bank->drum_samples_right[i][j] = 0;
sample_bank->drum_velocity[i][j] = NULL;
}
}
/* search for the desired preset */
for (pnum = 0; pnum < sf_num_presets; pnum++) {
int global_preset_layer, global_preset_velmin, global_preset_velmax, preset_velmin, preset_velmax;
int global_preset_keymin, global_preset_keymax, preset_keymin, preset_keymax;
wanted_patch = sf_presets[pnum].wPreset;
wanted_bank = sf_presets[pnum].wBank;
if (wanted_bank == UNSF_RANGE || options->opt_drum) {
drum = TRUE;
options->opt_drum_bank = wanted_patch;
} else {
drum = FALSE;
options->opt_bank = wanted_bank;
}
/* find what substructures it uses */
pindex = &sf_preset_indexes[sf_presets[pnum].wPresetBagNdx];
pindex_count = 0;
if (pnum < sf_num_presets - 1)
pindex_count = sf_presets[pnum + 1].wPresetBagNdx - sf_presets[pnum].wPresetBagNdx;
if (pindex_count < 1)
continue;
/* prettify the preset name */
s = getname(sf_presets[pnum].achPresetName);
if (drum) {
if (!sample_bank->drumset_name[options->opt_drum_bank]) {
sample_bank->drumset_short_name[options->opt_drum_bank] = strdup(s);
sprintf(tmpname, "%s-%s", options->basename, s);
sample_bank->drumset_name[options->opt_drum_bank] = strdup(tmpname);
if (options->opt_verbose) printf("drumset #%d %s\n", options->opt_drum_bank, s);
}
} else {
if (!sample_bank->voice_name[options->opt_bank][wanted_patch]) {
sample_bank->voice_name[options->opt_bank][wanted_patch] = strdup(s);
if (options->opt_verbose) printf("bank #%d voice #%d %s\n", options->opt_bank, wanted_patch, s);
sample_bank->tonebank[options->opt_bank] = TRUE;
}
}
global_preset_velmin = preset_velmin = -1;
global_preset_velmax = preset_velmax = -1;
global_preset_keymin = preset_keymin = -1;
global_preset_keymax = preset_keymax = -1;
/* for each layer in this preset */
for (inum = 0; inum < pindex_count; inum++) {
int global_instrument_layer, global_instrument_velmin, global_instrument_velmax,
instrument_velmin, instrument_velmax;
int global_instrument_keymin, global_instrument_keymax,
instrument_keymin, instrument_keymax;
pgen = &sf_preset_generators[pindex[inum].wGenNdx];
pgen_count = pindex[inum + 1].wGenNdx - pindex[inum].wGenNdx;
if (pgen_count > 0 && pgen[pgen_count - 1].sfGenOper != SFGEN_instrument)
global_preset_layer = TRUE;
else global_preset_layer = FALSE;
if (global_preset_velmin >= 0) preset_velmin = global_preset_velmin;
if (global_preset_velmax >= 0) preset_velmax = global_preset_velmax;
if (global_preset_keymin >= 0) preset_keymin = global_preset_keymin;
if (global_preset_keymax >= 0) preset_keymax = global_preset_keymax;
if (pgen_count < 0) break;
if (pgen[0].sfGenOper == SFGEN_keyRange) {
preset_keymin = pgen[0].genAmount.ranges.byLo;
preset_keymax = pgen[0].genAmount.ranges.byHi;
if (global_preset_layer) {
global_preset_keymin = preset_keymin;
global_preset_keymax = preset_keymax;
}
}
for (jnum = 0; jnum < pgen_count; jnum++) {
if (pgen[jnum].sfGenOper == SFGEN_velRange) {
preset_velmin = pgen[jnum].genAmount.ranges.byLo;
preset_velmax = pgen[jnum].genAmount.ranges.byHi;
if (global_preset_layer) {
global_preset_velmin = preset_velmin;
global_preset_velmax = preset_velmax;
}
}
}
/* find what instrument we should use */
if ((pgen_count > 0) &&
(pgen[pgen_count - 1].sfGenOper == SFGEN_instrument)) {
iheader = &sf_instruments[pgen[pgen_count - 1].genAmount.wAmount];
iindex = &sf_instrument_indexes[iheader->wInstBagNdx];
iindex_count = iheader[1].wInstBagNdx - iheader[0].wInstBagNdx;
global_instrument_velmin = instrument_velmin = -1;
global_instrument_velmax = instrument_velmax = -1;
global_instrument_keymin = instrument_keymin = -1;
global_instrument_keymax = instrument_keymax = -1;
/* for each layer in this instrument */
for (lnum = 0; lnum < iindex_count; lnum++) {
igen = &sf_instrument_generators[iindex[lnum].wInstGenNdx];
igen_count = iindex[lnum + 1].wInstGenNdx - iindex[lnum].wInstGenNdx;
if (global_instrument_velmin >= 0) instrument_velmin = global_instrument_velmin;
if (global_instrument_velmax >= 0) instrument_velmax = global_instrument_velmax;
if (global_instrument_keymin >= 0) instrument_keymin = global_instrument_keymin;
if (global_instrument_keymax >= 0) instrument_keymax = global_instrument_keymax;
if ((igen_count > 0) &&
(igen[igen_count - 1].sfGenOper != SFGEN_sampleID))
global_instrument_layer = TRUE;
else global_instrument_layer = FALSE;
for (jnum = 0; jnum < igen_count; jnum++) {
if (igen[jnum].sfGenOper == SFGEN_velRange) {
instrument_velmax = igen[jnum].genAmount.ranges.byHi;
instrument_velmin = igen[jnum].genAmount.ranges.byLo;
if (global_instrument_layer) {
global_instrument_velmin = instrument_velmin;
global_instrument_velmax = instrument_velmax;
}
}
}
if (igen_count > 0 && igen[0].sfGenOper == SFGEN_keyRange) {
instrument_keymax = igen[0].genAmount.ranges.byHi;
instrument_keymin = igen[0].genAmount.ranges.byLo;
if (global_instrument_layer) {
global_instrument_keymin = instrument_keymin;
global_instrument_keymax = instrument_keymax;
}
}
if (instrument_velmin >= 0) velmin = instrument_velmin;
else velmin = 0;
if (instrument_velmax >= 0) velmax = instrument_velmax;
else velmax = 127;
if (preset_velmin >= 0 && preset_velmax >= 0) {
if (preset_velmin >= velmin && preset_velmax <= velmax) {
velmin = preset_velmin;
velmax = preset_velmax;
}
}
if (instrument_keymin >= 0) keymin = instrument_keymin;
else keymin = 0;
if (instrument_keymax >= 0) keymax = instrument_keymax;
else keymax = 127;
if (preset_keymin >= 0 && preset_keymax >= 0) {
if (preset_keymin >= keymin && preset_keymax <= keymax) {
keymin = preset_keymin;
keymax = preset_keymax;
}
}
/* find what sample we should use */
if ((igen_count > 0) &&
(igen[igen_count - 1].sfGenOper == SFGEN_sampleID)) {
int k;
sample = &sf_samples[igen[igen_count - 1].genAmount.wAmount];
/* sample->wSampleLink is the link?? */
/* lsample = &sf_samples[sample->wSampleLink] */
if (sample->sfSampleType & LINKED_SAMPLE && options->opt_verbose) {
printf("linked sample: link is %d\n", sample->wSampleLink);
}
if (sample->sfSampleType & LINKED_SAMPLE) continue; /* linked */
s = sample->achSampleName;
k = strlen(s) - 1;
if (s[k] == 'L') sample->sfSampleType = LEFT_SAMPLE;
if (s[k] == 'R') sample->sfSampleType = RIGHT_SAMPLE;
/* prettify the sample name */
s = getname(sample->achSampleName);
if (sample->sfSampleType & 0x8000 && options->opt_verbose) {
printf("This SoundFont uses AWE32 ROM data in sample %s\n", s);
if (options->opt_veryverbose)
printf("\n");
continue;
}
if (drum) {
int pool_num;
for (pool_num = keymin; pool_num <= keymax; pool_num++) {
drumnum = pool_num;
if (!sample_bank->drum_name[options->opt_drum_bank][drumnum]) {
sample_bank->drum_name[options->opt_drum_bank][drumnum] = strdup(s);
if (options->opt_verbose)
printf("drumset #%d drum #%d %s\n", options->opt_drum_bank, drumnum, s);
}
if (sample->sfSampleType == LEFT_SAMPLE)
sample_bank->drum_samples_left[options->opt_drum_bank][drumnum]++;
else if (sample->sfSampleType == RIGHT_SAMPLE)
sample_bank->drum_samples_right[options->opt_drum_bank][drumnum]++;
else sample_bank->drum_samples_mono[options->opt_drum_bank][drumnum]++;
record_velocity_range(options, sample_bank, drum, options->opt_drum_bank, drumnum,
velmin, velmax, sample->sfSampleType);
}
} else {
if (sample->sfSampleType == LEFT_SAMPLE)
sample_bank->voice_samples_left[options->opt_bank][wanted_patch]++;
else if (sample->sfSampleType == RIGHT_SAMPLE)