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sfont.c
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sfont.c
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/*
sfont.c:
Copyright (C) 2000-7 Gabriel Maldonado, John ffitch, Victor Lazzarini
This file is part of Csound.
The Csound 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.
Csound 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 Csound; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
*/
/* WARNING! This file MUST be compiled by setting the structure member
alignment (compiler option) to 1 byte. That is: no padding bytes
should be present between a structure data member and another.
This code will cause memory access faults and crash Csound if
compiled with structure member alignment different than 1. See the
documentation of your C compiler to choose the appropriate compiler
directive switch. */
// #include "csdl.h"
#include "csoundCore.h"
#include "interlocks.h"
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <ctype.h>
#include <errno.h>
#include "sfenum.h"
#include "sfont.h"
#define s2d(x) *((DWORD *) (x))
static int32_t chunk_read(CSOUND *, FILE *f, CHUNK *chunk);
static void fill_SfPointers(CSOUND *);
static int32_t fill_SfStruct(CSOUND *);
static void layerDefaults(layerType *layer);
static void splitDefaults(splitType *split);
#define MAX_SFONT (10)
#define MAX_SFPRESET (16384)
#define GLOBAL_ATTENUATION (FL(0.3))
#define ONETWELTH (0.08333333333333333333333333333)
#define TWOTOTWELTH (1.05946309435929526456182529495)
typedef struct _sfontg {
SFBANK *soundFont;
SFBANK *sfArray;
int32_t currSFndx;
int32_t maxSFndx;
presetType **presetp;
SHORT **sampleBase;
MYFLT pitches[128];
} sfontg;
int32_t sfont_ModuleDestroy(CSOUND *csound)
{
int32_t j,k,l;
SFBANK *sfArray;
sfontg *globals;
globals = (sfontg *) (csound->QueryGlobalVariable(csound, "::sfontg"));
if (globals == NULL) return 0;
sfArray = globals->sfArray;
for (j=0; j<globals->currSFndx; j++) {
for (k=0; k< sfArray[j].presets_num; k++) {
for (l=0; l<sfArray[j].preset[k].layers_num; l++) {
csound->Free(csound, sfArray[j].preset[k].layer[l].split);
}
csound->Free(csound, sfArray[j].preset[k].layer);
}
csound->Free(csound, sfArray[j].preset);
for (l=0; l< sfArray[j].instrs_num; l++) {
csound->Free(csound, sfArray[j].instr[l].split);
}
csound->Free(csound, sfArray[j].instr);
csound->Free(csound, sfArray[j].chunk.main_chunk.ckDATA);
}
csound->Free(csound, sfArray);
globals->currSFndx = 0;
csound->Free(csound, globals->presetp);
csound->Free(csound, globals->sampleBase);
csound->DestroyGlobalVariable(csound, "::sfontg");
return 0;
}
static void SoundFontLoad(CSOUND *csound, char *fname)
{
FILE *fil;
void *fd;
SFBANK *soundFont;
sfontg *globals;
globals = (sfontg *) (csound->QueryGlobalVariable(csound, "::sfontg"));
soundFont = globals->soundFont;
fd = csound->FileOpen2(csound, &fil, CSFILE_STD, fname, "rb",
"SFDIR;SSDIR", CSFTYPE_SOUNDFONT, 0);
if (UNLIKELY(fd == NULL)) {
csound->ErrorMsg(csound,
Str("sfload: cannot open SoundFont file \"%s\" (error %s)"),
fname, strerror(errno));
return;
}
soundFont = &globals->sfArray[globals->currSFndx];
/* if (UNLIKELY(soundFont==NULL)){ */
/* csound->ErrorMsg(csound, Str("Sfload: cannot use globals")); */
/* return; */
/* } */
strNcpy(soundFont->name, csound->GetFileName(fd), 256);
//soundFont->name[255]='\0';
if (UNLIKELY(chunk_read(csound, fil, &soundFont->chunk.main_chunk)<0))
csound->Message(csound, Str("sfont: failed to read file\n"));
csound->FileClose(csound, fd);
globals->soundFont = soundFont;
fill_SfPointers(csound);
fill_SfStruct(csound);
}
static int32_t compare(presetType * elem1, presetType *elem2)
{
if (elem1->bank * 128 + elem1->prog > elem2->bank * 128 + elem2->prog)
return 1;
else
return -1;
}
/* syntax:
ihandle SfLoad "filename"
*/
static char *Gfname; /* NOT THREAD SAFE */
static int32_t SfLoad_(CSOUND *csound, SFLOAD *p, int32_t istring)
/* open a file and return its handle */
{ /* the handle is simply a stack index */
char *fname;
SFBANK *sf;
sfontg *globals;
globals = (sfontg *) (csound->QueryGlobalVariable(csound, "::sfontg"));
if (UNLIKELY(globals==NULL)) {
return csound->InitError(csound, Str("sfload: could not open globals\n"));
}
if (istring) fname = csound->Strdup(csound, ((STRINGDAT *)p->fname)->data);
else {
if (csound->ISSTRCOD(*p->fname))
fname = csound->Strdup(csound, get_arg_string(csound,*p->fname));
else fname = csound->strarg2name(csound,
NULL, p->fname, "sfont.",
0);
}
/* strcpy(fname, (char*) p->fname); */
Gfname = fname;
SoundFontLoad(csound, fname);
*p->ihandle = (float) globals->currSFndx;
sf = &globals->sfArray[globals->currSFndx];
qsort(sf->preset, sf->presets_num, sizeof(presetType),
(int32_t (*)(const void *, const void * )) compare);
csound->Free(csound,fname);
if (UNLIKELY(++globals->currSFndx>=globals->maxSFndx)) {
globals->maxSFndx += 5;
globals->sfArray = (SFBANK *)csound->ReAlloc(csound, globals->sfArray,
/* JPff fix */ globals->maxSFndx*sizeof(SFBANK));
csound->Warning(csound, Str("Extending soundfonts"));
if (globals->sfArray == NULL) return NOTOK;
}
return OK;
}
static int32_t SfLoad(CSOUND *csound, SFLOAD *p){
return SfLoad_(csound,p,0);
}
static int32_t SfLoad_S(CSOUND *csound, SFLOAD *p){
return SfLoad_(csound,p,1);
}
static char *filter_string(char *s, char temp_string[24])
{
int32_t i=0, j=0;
int32_t c;
for (i=0; i<22; i++, j++) {
c = s[j];
if (c=='\0') break;
if (isprint(c)) temp_string[i]=c;
else if (c<32) {
temp_string[i++]='^';
temp_string[i] = '@'+c;
}
else temp_string[i]='?';
}
temp_string[i] = '\0';
return temp_string;
}
static int32_t Sfplist(CSOUND *csound, SFPLIST *p)
{
sfontg *globals;
SFBANK *sf;
char temp_string[24];
int32_t j;
globals = (sfontg *) (csound->QueryGlobalVariable(csound, "::sfontg"));
if (UNLIKELY( *p->ihandle<0 || *p->ihandle>=globals->currSFndx))
return csound->InitError(csound, Str("invalid soundfont"));
sf = &globals->sfArray[(int32_t) *p->ihandle];
/* if (UNLIKELY(sf==NULL)) */
/* return csound->InitError(csound, Str("invalid soundfont")); */
csound->Message(csound, Str("\nPreset list of \"%s\"\n"), sf->name);
for (j =0; j < sf->presets_num; j++) {
presetType *prs = &sf->preset[j];
csound->Message(csound, Str("%3d) %-20s\tprog:%-3d bank:%d\n"),
j, filter_string(prs->name, temp_string),
prs->prog, prs->bank);
}
csound->Message(csound, "\n");
return OK;
}
static int32_t SfAssignAllPresets(CSOUND *csound, SFPASSIGN *p)
{
sfontg *globals;
SFBANK *sf;
int32_t pHandle, pnum;
int32_t j, enableMsgs;
globals = (sfontg *) (csound->QueryGlobalVariable(csound, "::sfontg"));
if (UNLIKELY( *p->ihandle<0 || *p->ihandle>=globals->currSFndx))
return csound->InitError(csound, Str("invalid soundfont"));
sf = &globals->sfArray[(int32_t) *p->ihandle];
/* if (UNLIKELY(globals->soundFont==NULL)) */
/* return csound->InitError(csound, Str("invalid sound font")); */
pHandle = (int32_t) *p->startNum;
pnum = sf->presets_num;
enableMsgs = (*p->msgs==FL(0.0));
if (enableMsgs)
csound->Message(csound,
Str("\nAssigning all Presets of \"%s\" starting from"
" %d (preset handle number)\n"), sf->name, pHandle);
for (j = 0; j < pnum; j++) {
presetType *prs = &sf->preset[j];
if (enableMsgs)
csound->Message(csound, Str("%3d<--%-20s\t(prog:%-3d bank:%d)\n"),
j, prs->name, prs->prog, prs->bank);
globals->presetp[pHandle] = &sf->preset[j];
globals->sampleBase[pHandle] = sf->sampleData;
pHandle++;
}
if (enableMsgs)
csound->Message(csound, Str("\nAll presets have been assigned to preset"
" handles from %d to %d\nXS\n"),
(int32_t) *p->startNum, pHandle - 1);
return OK;
}
static int32_t Sfilist(CSOUND *csound, SFPLIST *p)
{
sfontg *globals;
SFBANK *sf;
int32_t j;
globals = (sfontg *) (csound->QueryGlobalVariable(csound, "::sfontg"));
if (UNLIKELY( *p->ihandle<0 || *p->ihandle>=globals->currSFndx))
return csound->InitError(csound, Str("invalid soundfont"));
/* if (UNLIKELY(globals->soundFont==NULL)) */
/* return csound->InitError(csound, Str("invalid sound font")); */
sf = &globals->sfArray[(int32_t) *p->ihandle];
csound->Message(csound, Str("\nInstrument list of \"%s\"\n"), sf->name);
for (j =0; j < sf->instrs_num; j++) {
instrType *inst = &sf->instr[j];
csound->Message(csound, "%3d) %-20s\n", j, inst->name);
}
csound->Message(csound, "\n");
return OK;
}
static int32_t SfPreset(CSOUND *csound, SFPRESET *p)
{
sfontg *globals; SFBANK *sf;
int32_t j, presetHandle = (int32_t) *p->iPresetHandle;
globals = (sfontg *) (csound->QueryGlobalVariable(csound, "::sfontg"));
sf = &globals->sfArray[(DWORD) *p->isfhandle];
if (UNLIKELY( *p->isfhandle<0 || *p->isfhandle>=globals->currSFndx))
return csound->InitError(csound, Str("invalid soundfont"));
if (UNLIKELY(presetHandle >= MAX_SFPRESET || presetHandle<0)) {
return csound->InitError(csound,
Str("sfpreset: preset handle too big (%d), max: %d"),
presetHandle, (int32_t) MAX_SFPRESET - 1);
}
for (j=0; j< sf->presets_num; j++) {
if (sf->preset[j].prog == (WORD) *p->iprog &&
sf->preset[j].bank == (WORD) *p->ibank )
{
globals->presetp[presetHandle] = &sf->preset[j];
globals->sampleBase[presetHandle] = sf->sampleData;
break;
}
}
*p->ipresethandle = (MYFLT) presetHandle;
if (UNLIKELY(globals->presetp[presetHandle] == NULL)) {
return csound->InitError(csound,
Str("sfpreset: cannot find any preset having prog "
"number %d and bank number %d in SoundFont file"
" \"%s\""),
(int32_t) *p->iprog, (int32_t) *p->ibank,
globals->sfArray[(DWORD) *p->isfhandle].name);
}
return OK;
}
static int32_t SfPlay_set(CSOUND *csound, SFPLAY *p)
{
DWORD index = (DWORD) *p->ipresethandle;
presetType *preset;
SHORT *sBase;
int32_t layersNum, j, spltNum = 0, flag = (int32_t) *p->iflag;
sfontg *globals;
globals = (sfontg *) (csound->QueryGlobalVariable(csound, "::sfontg"));
if (UNLIKELY(index>=(DWORD)globals->currSFndx))
return csound->InitError(csound, Str("invalid soundfont"));
preset = globals->presetp[index];
sBase = globals->sampleBase[index];
if (!UNLIKELY(preset!=NULL)) {
return csound->InitError(csound, Str("sfplay: invalid or "
"out-of-range preset number"));
}
layersNum = preset->layers_num;
for (j =0; j < layersNum; j++) {
layerType *layer = &preset->layer[j];
int32_t vel= (int32_t) *p->ivel, notnum= (int32_t) *p->inotnum;
if (notnum >= layer->minNoteRange &&
notnum <= layer->maxNoteRange &&
vel >= layer->minVelRange &&
vel <= layer->maxVelRange) {
int32_t splitsNum = layer->splits_num, k;
for (k = 0; k < splitsNum; k++) {
splitType *split = &layer->split[k];
if (notnum >= split->minNoteRange &&
notnum <= split->maxNoteRange &&
vel >= split->minVelRange &&
vel <= split->maxVelRange) {
sfSample *sample = split->sample;
DWORD start=sample->dwStart;
MYFLT attenuation;
double pan;
double freq, orgfreq;
double tuneCorrection = split->coarseTune + layer->coarseTune +
(split->fineTune + layer->fineTune)*0.01;
int32_t orgkey = split->overridingRootKey;
if (orgkey == -1) orgkey = sample->byOriginalKey;
orgfreq = globals->pitches[orgkey];
if (flag) {
freq = orgfreq * pow(2.0, ONETWELTH * tuneCorrection);
p->si[spltNum]= (freq/(orgfreq*orgfreq))*
sample->dwSampleRate*csound->onedsr;
}
else {
freq = orgfreq * pow(2.0, ONETWELTH * tuneCorrection) *
pow(2.0, ONETWELTH * (split->scaleTuning*0.01) * (notnum-orgkey));
p->si[spltNum]= (freq/orgfreq) * sample->dwSampleRate*csound->onedsr;
}
attenuation = (MYFLT) (layer->initialAttenuation +
split->initialAttenuation);
attenuation = POWER(FL(2.0), (-FL(1.0)/FL(60.0)) * attenuation )
* GLOBAL_ATTENUATION;
pan = (double)(split->pan + layer->pan) / 1000.0 + 0.5;
if (pan > 1.0) pan = 1.0;
else if (pan < 0.0) pan = 0.0;
/* Suggested fix from steven yi Oct 2002 */
p->base[spltNum] = sBase + start;
p->phs[spltNum] = (double) split->startOffset + *p->ioffset;
p->end[spltNum] = sample->dwEnd + split->endOffset - start;
p->startloop[spltNum] =
sample->dwStartloop + split->startLoopOffset - start;
p->endloop[spltNum] =
sample->dwEndloop + split->endLoopOffset - start;
p->leftlevel[spltNum] = (MYFLT) sqrt(1.0-pan) * attenuation;
p->rightlevel[spltNum] = (MYFLT) sqrt(pan) * attenuation;
p->mode[spltNum]= split->sampleModes;
p->attack[spltNum] = split->attack*CS_EKR;
p->decay[spltNum] = split->decay*CS_EKR;
p->sustain[spltNum] = split->sustain;
p->release[spltNum] = split->release*CS_EKR;
if (*p->ienv > 1) {
p->attr[spltNum] = 1.0/(CS_EKR*split->attack);
p->decr[spltNum] = pow((split->sustain+0.0001),
1.0/(CS_EKR*
split->decay+0.0001));
if (split->attack != 0.0) p->env[spltNum] = 0.0;
else p->env[spltNum] = 1.0;
}
else if (*p->ienv > 0) {
p->attr[spltNum] = 1.0/(CS_EKR*split->attack);
p->decr[spltNum] = (split->sustain-1.0)/(CS_EKR*
split->decay);
if (split->attack != 0.0) p->env[spltNum] = 0.0;
else p->env[spltNum] = 1.0;
}
else {
p->env[spltNum] = 1.0;
}
p->ti[spltNum] = 0;
spltNum++;
}
}
}
}
p->spltNum = spltNum;
return OK;
}
#define Linear_interpolation \
SHORT *curr_samp = *base + (int32) *phs;\
MYFLT fract = (MYFLT) *phs - (MYFLT)((int32)*phs);\
MYFLT out = (*curr_samp + (*(curr_samp+1) - *curr_samp)*fract);
#define Cubic_interpolation \
MYFLT phs1 = (MYFLT) *phs -FL(1.0);\
int32_t x0 = (int32)phs1 ;\
MYFLT fract = (MYFLT)(phs1 - x0);\
SHORT *ftab = *base + x0;\
MYFLT ym1= *ftab++;\
MYFLT y0 = *ftab++;\
MYFLT y1 = *ftab++;\
MYFLT y2 = *ftab;\
MYFLT frsq = fract*fract;\
MYFLT frcu = frsq*ym1;\
MYFLT t1 = y2 + FL(3.0)*y0;\
MYFLT out = y0 + FL(0.5)*frcu + \
fract*(y1 - frcu/FL(6.0) - t1/FL(6.0) - ym1/FL(3.0)) + \
frsq*fract*(t1/FL(6.0) - FL(0.5)*y1) + frsq*(FL(0.5)* y1 - y0);
#define Looped \
if (*phs >= *startloop) flag = 1; \
if (flag) { \
while (*phs >= *endloop) *phs -= looplength; \
while (*phs < *startloop) *phs += looplength; \
}
#define ExpEnvelope \
if (*tinc < *attack) *env += *attr; \
else if (*tinc < *decay + *attack) *env *= *decr; \
else *env = *sustain; \
(*tinc)++; \
#define LinEnvelope \
if (*tinc < *attack) *env += *attr; \
else if (*tinc < *decay + *attack) *env += *decr; \
else *env = *sustain; \
(*tinc)++; \
#define Unlooped \
if (*phs > *end) break; \
if (*phs < FL(0.0)) *phs = FL(0.0); \
#define Mono_out \
out1[n] += *attenuation * out * (*env); \
*phs += si;
#define Stereo_out \
out1[n] += *left * out * (*env);\
out2[n] += *right * out * (*env);\
*phs += si;
static int32_t SfPlay(CSOUND *csound, SFPLAY *p)
{
IGN(csound);
MYFLT *out1 = p->out1, *out2 = p->out2, *env = p->env;
uint32_t offset = p->h.insdshead->ksmps_offset;
uint32_t early = p->h.insdshead->ksmps_no_end;
uint32_t n, nsmps = CS_KSMPS;
int32_t j = p->spltNum;
SHORT **base = p->base;
DWORD *end = p->end, *startloop= p->startloop, *endloop= p->endloop,
*tinc = p->ti;
SHORT *mode = p->mode;
double *sampinc = p->si, *phs = p->phs;
MYFLT *left= p->leftlevel, *right= p->rightlevel, *attack = p->attack,
*decr = p->decr, *decay = p->decay, *sustain= p->sustain,
*release = p->release, *attr = p->attr;
memset(out1, 0, nsmps*sizeof(MYFLT));
memset(out2, 0, nsmps*sizeof(MYFLT));
if (UNLIKELY(early)) nsmps -= early;
if (IS_ASIG_ARG(p->xfreq)) {
while (j--) {
double looplength = *endloop - *startloop;
MYFLT *freq = p->xfreq;
if (*mode == 1 || *mode ==3) {
int32_t flag =0;
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
for (n=offset;n<nsmps;n++) {
double si = *sampinc * freq[n];
Linear_interpolation Stereo_out Looped
}
}
else if (*phs < *end) {
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
for (n=offset;n<nsmps;n++) {
double si = *sampinc * freq[n];
Linear_interpolation Stereo_out Unlooped
}
}
phs++; base++; sampinc++; endloop++; startloop++;
left++; right++, mode++, end++; attack++; decay++; sustain++;
release++; tinc++; env++; attr++; decr++;
}
}
else {
MYFLT freq = *p->xfreq;
while (j--) {
double looplength = *endloop - *startloop;
double si = *sampinc * freq;
if (*mode == 1 || *mode ==3) {
int32_t flag =0;
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
for (n=offset;n<nsmps;n++) {
Linear_interpolation Stereo_out Looped
}
}
else if (*phs < *end) {
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
for (n=offset;n<nsmps;n++) {
Linear_interpolation Stereo_out Unlooped
}
}
phs++; base++; sampinc++; endloop++; startloop++;
left++; right++, mode++, end++; attack++; decay++; sustain++;
release++; tinc++; env++; attr++; decr++;
}
}
if (IS_ASIG_ARG(p->xamp)) {
MYFLT *amp = p->xamp;
for (n=offset;n<nsmps;n++) {
out1[n] *= amp[n];
out2[n] *= amp[n];
}
}
else {
MYFLT famp = *p->xamp;
for (n=offset;n<nsmps;n++) {
out1[n] *= famp;
out2[n] *= famp;
}
}
return OK;
}
static int32_t SfPlay3(CSOUND *csound, SFPLAY *p)
{
IGN(csound);
MYFLT *out1 = p->out1, *out2 = p->out2, *env = p->env;
uint32_t offset = p->h.insdshead->ksmps_offset;
uint32_t early = p->h.insdshead->ksmps_no_end;
uint32_t n, nsmps = CS_KSMPS;
int32_t j = p->spltNum;
SHORT **base = p->base;
DWORD *end = p->end, *startloop = p->startloop,
*endloop = p->endloop, *tinc = p->ti;
SHORT *mode = p->mode;
double *sampinc = p->si, *phs = p->phs;
MYFLT *left= p->leftlevel, *right= p->rightlevel, *attack = p->attack,
*decr = p->decr, *decay = p->decay, *sustain= p->sustain,
*release = p->release, *attr = p->attr;
memset(out1, 0, nsmps*sizeof(MYFLT));
memset(out2, 0, nsmps*sizeof(MYFLT));
if (UNLIKELY(early)) nsmps -= early;
if (IS_ASIG_ARG(p->xfreq)) {
while (j--) {
double looplength = *endloop - *startloop;
MYFLT *freq = p->xfreq;
/* nsmps = CS_KSMPS; */
if (*mode == 1 || *mode ==3) {
int32_t flag =0;
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
for (n=offset;n<nsmps;n++) {
double si = *sampinc * freq[n];
Cubic_interpolation Stereo_out Looped
}
}
else if (*phs < *end) {
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
for (n=offset;n<nsmps;n++) {
double si = *sampinc * freq[n];
Cubic_interpolation Stereo_out Unlooped
}
}
phs++; base++; sampinc++; endloop++; startloop++;
left++; right++, mode++, end++; attack++; decay++; sustain++;
release++; tinc++; env++; attr++; decr++;
}
}
else {
MYFLT freq = *p->xfreq;
while (j--) {
double looplength = *endloop - *startloop, si = *sampinc * freq;
if (*mode == 1 || *mode ==3) {
int32_t flag =0;
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
for (n=offset;n<nsmps;n++) {
Cubic_interpolation Stereo_out Looped
}
}
else if (*phs < *end) {
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
for (n=offset;n<nsmps;n++) {
Cubic_interpolation Stereo_out Unlooped
}
}
phs++; base++; sampinc++; endloop++; startloop++;
left++; right++, mode++, end++; attack++; decay++; sustain++;
release++; tinc++; env++; attr++; decr++;
}
}
if (IS_ASIG_ARG(p->xamp)) {
MYFLT *amp = p->xamp;
for (n=offset;n<nsmps;n++) {
out1[n] *= amp[n];
out2[n] *= amp[n];
}
}
else {
MYFLT famp = *p->xamp;
for (n=offset;n<nsmps;n++) {
out1[n] *= famp;
out2[n] *= famp;
}
}
return OK;
}
static int32_t SfPlayMono_set(CSOUND *csound, SFPLAYMONO *p)
{
DWORD index = (DWORD) *p->ipresethandle;
presetType *preset;
SHORT *sBase;
int32_t layersNum, j, spltNum = 0, flag=(int32_t) *p->iflag;
sfontg *globals;
globals = (sfontg *) (csound->QueryGlobalVariable(csound, "::sfontg"));
if (UNLIKELY(index>=(DWORD)globals->currSFndx))
return csound->InitError(csound, Str("invalid soundfont"));
preset = globals->presetp[index];
sBase = globals->sampleBase[index];
if (UNLIKELY(!preset)) {
return csound->InitError(csound, Str("sfplaym: invalid or "
"out-of-range preset number"));
}
layersNum= preset->layers_num;
for (j =0; j < layersNum; j++) {
layerType *layer = &preset->layer[j];
int32_t vel= (int32_t) *p->ivel, notnum= (int32_t) *p->inotnum;
if (notnum >= layer->minNoteRange &&
notnum <= layer->maxNoteRange &&
vel >= layer->minVelRange &&
vel <= layer->maxVelRange) {
int32_t splitsNum = layer->splits_num, k;
for (k = 0; k < splitsNum; k++) {
splitType *split = &layer->split[k];
if (notnum >= split->minNoteRange &&
notnum <= split->maxNoteRange &&
vel >= split->minVelRange &&
vel <= split->maxVelRange) {
sfSample *sample = split->sample;
DWORD start=sample->dwStart;
double freq, orgfreq;
double tuneCorrection = split->coarseTune + layer->coarseTune +
(split->fineTune + layer->fineTune)*0.01;
int32_t orgkey = split->overridingRootKey;
if (orgkey == -1) orgkey = sample->byOriginalKey;
orgfreq = globals->pitches[orgkey] ;
if (flag) {
freq = orgfreq * pow(2.0, ONETWELTH * tuneCorrection);
p->si[spltNum]= (freq/(orgfreq*orgfreq))*
sample->dwSampleRate*csound->onedsr;
}
else {
freq = orgfreq * pow(2.0, ONETWELTH * tuneCorrection) *
pow( 2.0, ONETWELTH* (split->scaleTuning*0.01) * (notnum-orgkey));
p->si[spltNum]= (freq/orgfreq) * sample->dwSampleRate*csound->onedsr;
}
p->attenuation[spltNum] =
POWER(FL(2.0), (-FL(1.0)/FL(60.0)) * (layer->initialAttenuation +
split->initialAttenuation)) *
GLOBAL_ATTENUATION;
p->base[spltNum] = sBase+ start;
p->phs[spltNum] = (double) split->startOffset + *p->ioffset;
p->end[spltNum] = sample->dwEnd + split->endOffset - start;
p->startloop[spltNum] = sample->dwStartloop +
split->startLoopOffset - start;
p->endloop[spltNum] = sample->dwEndloop + split->endLoopOffset - start;
p->mode[spltNum]= split->sampleModes;
p->attack[spltNum] = split->attack*CS_EKR;
p->decay[spltNum] = split->decay*CS_EKR;
p->sustain[spltNum] = split->sustain;
p->release[spltNum] = split->release*CS_EKR;
if (*p->ienv > 1) {
p->attr[spltNum] = 1.0/(CS_EKR*split->attack);
p->decr[spltNum] = pow((split->sustain+0.0001),
1.0/(CS_EKR*
split->decay+0.0001));
if (split->attack != 0.0) p->env[spltNum] = 0.0;
else p->env[spltNum] = 1.0;
}
else if (*p->ienv > 0) {
p->attr[spltNum] = 1.0/(CS_EKR*split->attack);
p->decr[spltNum] = (split->sustain-1.0)/(CS_EKR*
split->decay);
if (split->attack != 0.0) p->env[spltNum] = 0.0;
else p->env[spltNum] = 1.0;
}
else {
p->env[spltNum] = 1.0;
}
p->ti[spltNum] = 0;
spltNum++;
}
}
}
}
p->spltNum = spltNum;
return OK;
}
static int32_t SfPlayMono(CSOUND *csound, SFPLAYMONO *p)
{
IGN(csound);
MYFLT *out1 = p->out1 , *env = p->env;
uint32_t offset = p->h.insdshead->ksmps_offset;
uint32_t early = p->h.insdshead->ksmps_no_end;
uint32_t n, nsmps = CS_KSMPS;
int32_t j = p->spltNum;
SHORT **base = p->base;
DWORD *end= p->end, *startloop= p->startloop, *endloop= p->endloop,
*tinc = p->ti;
SHORT *mode = p->mode;
double *sampinc = p->si, *phs = p->phs;
MYFLT *attenuation = p->attenuation, *attack = p->attack, *decr = p->decr,
*decay = p->decay, *sustain= p->sustain, *release = p->release,
*attr = p->attr;
memset(out1, 0, nsmps*sizeof(MYFLT));
if (UNLIKELY(early)) nsmps -= early;
if (IS_ASIG_ARG(p->xfreq)) {
while (j--) {
double looplength = *endloop - *startloop;
MYFLT *freq = p->xfreq;
if (*mode == 1 || *mode ==3) {
int32_t flag =0;
for (n=offset;n<nsmps;n++) {
double si = *sampinc * freq[n];
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
{ Linear_interpolation Mono_out Looped }
}
}
else if (*phs < *end) {
for (n=offset;n<nsmps;n++) {
double si = *sampinc * freq[n];
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
{ Linear_interpolation Mono_out Unlooped }
}
}
phs++; base++; sampinc++; endloop++; startloop++;
attenuation++, mode++, end++; attack++; decay++; sustain++;
release++; tinc++; env++; attr++; decr++;
}
}
else {
MYFLT freq = *p->xfreq;
while (j--) {
double looplength = *endloop - *startloop;
double si = *sampinc * freq;
if (*mode == 1 || *mode ==3) {
int32_t flag =0;
for (n=offset;n<nsmps;n++) {
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
{ Linear_interpolation Mono_out Looped }
}
}
else if (*phs < *end) {
for (n=offset;n<nsmps;n++) {
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
{ Linear_interpolation Mono_out Unlooped }
}
}
phs++; base++; sampinc++; endloop++; startloop++;
attenuation++, mode++, end++; attack++; decay++; sustain++;
release++; tinc++; env++; attr++; decr++;
}
}
if (IS_ASIG_ARG(p->xamp)) {
MYFLT *amp = p->xamp;
for (n=offset;n<nsmps;n++) {
out1[n] *= amp[n];
}
}
else {
MYFLT famp = *p->xamp;
for (n=offset;n<nsmps;n++) {
out1[n] *= famp;
}
}
return OK;
}
static int32_t SfPlayMono3(CSOUND *csound, SFPLAYMONO *p)
{
IGN(csound);
MYFLT *out1 = p->out1, *env = p->env;
uint32_t offset = p->h.insdshead->ksmps_offset;
uint32_t early = p->h.insdshead->ksmps_no_end;
uint32_t n, nsmps = CS_KSMPS;
int32_t j = p->spltNum;
SHORT **base = p->base;
DWORD *end = p->end, *startloop = p->startloop,
*endloop = p->endloop, *tinc = p->ti;
SHORT *mode = p->mode;
double *sampinc = p->si, *phs = p->phs;
MYFLT *attenuation = p->attenuation,*attack = p->attack, *decr = p->decr,
*decay = p->decay, *sustain= p->sustain, *release = p->release,
*attr = p->attr;
memset(out1, 0, nsmps*sizeof(MYFLT));
if (UNLIKELY(early)) nsmps -= early;
if (IS_ASIG_ARG(p->xfreq)) {
while (j--) {
double looplength = *endloop - *startloop;
MYFLT *freq = p->xfreq;
if (*mode == 1 || *mode ==3) {
int32_t flag =0;
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
for (n=offset;n<nsmps;n++) {
double si = *sampinc * freq[n];
Cubic_interpolation Mono_out Looped
}
}
else if (*phs < *end) {
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
for (n=offset;n<nsmps;n++) {
double si = *sampinc * freq[n];
Cubic_interpolation Mono_out Unlooped
}
}
phs++; base++; sampinc++; endloop++; startloop++;
attenuation++, mode++, end++; attack++; decay++; sustain++;
release++; tinc++; env++; attr++; decr++;
}
}
else {
MYFLT freq = *p->xfreq;
while (j--) {
double looplength = *endloop - *startloop;
double si = *sampinc * freq;
if (*mode == 1 || *mode ==3) {
int32_t flag =0;
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
for (n=offset;n<nsmps;n++) {
Cubic_interpolation Mono_out Looped
}
}
else if (*phs < *end) {
if (*p->ienv > 1) { ExpEnvelope }
else if (*p->ienv > 0) { LinEnvelope }
for (n=offset;n<nsmps;n++) {
Cubic_interpolation Mono_out Unlooped
}
}
phs++; base++; sampinc++; endloop++; startloop++;
attenuation++, mode++, end++; attack++; decay++; sustain++;
release++; tinc++; env++; attr++; decr++;
}
}
if (IS_ASIG_ARG(p->xamp)) {
MYFLT *amp = p->xamp;
for (n=offset;n<nsmps;n++) {
out1[n] *= amp[n];
}
}
else {
MYFLT famp = *p->xamp;
for (n=offset;n<nsmps;n++) {
out1[n] *= famp;
}
}
return OK;
}
static int32_t SfInstrPlay_set(CSOUND *csound, SFIPLAY *p)
{
sfontg *globals;
SFBANK *sf;
int32_t index = (int32_t) *p->sfBank;
globals = (sfontg *) (csound->QueryGlobalVariable(csound, "::sfontg"));
if (UNLIKELY(index<0 || index>=globals->currSFndx))
return csound->InitError(csound, Str("invalid soundfont"));
sf = &globals->sfArray[index];
if (UNLIKELY(*p->instrNum > sf->instrs_num)) {
return csound->InitError(csound, Str("sfinstr: instrument out of range"));
}
else {
instrType *layer = &sf->instr[(int32_t) *p->instrNum];
SHORT *sBase = sf->sampleData;
int32_t spltNum = 0, flag=(int32_t) *p->iflag;
int32_t vel= (int32_t) *p->ivel, notnum= (int32_t) *p->inotnum;
int32_t splitsNum = layer->splits_num, k;
for (k = 0; k < splitsNum; k++) {
splitType *split = &layer->split[k];
if (notnum >= split->minNoteRange &&
notnum <= split->maxNoteRange &&
vel >= split->minVelRange &&
vel <= split->maxVelRange) {
sfSample *sample = split->sample;
DWORD start=sample->dwStart;
MYFLT attenuation, pan;
double freq, orgfreq;
double tuneCorrection = split->coarseTune + split->fineTune*0.01;
int32_t orgkey = split->overridingRootKey;
if (orgkey == -1) orgkey = sample->byOriginalKey;
orgfreq = globals->pitches[orgkey] ;
if (flag) {
freq = orgfreq * pow(2.0, ONETWELTH * tuneCorrection);
p->si[spltNum] = (freq/(orgfreq*orgfreq))*
sample->dwSampleRate*csound->onedsr;
}
else {
freq = orgfreq * pow(2.0, ONETWELTH * tuneCorrection)
* pow( 2.0, ONETWELTH* (split->scaleTuning*0.01)*(notnum - orgkey));
p->si[spltNum] = (freq/orgfreq)*(sample->dwSampleRate*csound->onedsr);
}
attenuation = (MYFLT) (split->initialAttenuation);
attenuation = POWER(FL(2.0), (-FL(1.0)/FL(60.0)) * attenuation) *
GLOBAL_ATTENUATION;
pan = (MYFLT) split->pan / FL(1000.0) + FL(0.5);
if (pan > FL(1.0)) pan =FL(1.0);
else if (pan < FL(0.0)) pan = FL(0.0);
p->base[spltNum] = sBase + start;
p->phs[spltNum] = (double) split->startOffset + *p->ioffset;
p->end[spltNum] = sample->dwEnd + split->endOffset - start;
p->startloop[spltNum] = sample->dwStartloop +
split->startLoopOffset - start;
p->endloop[spltNum] = sample->dwEndloop + split->endLoopOffset - start;
p->leftlevel[spltNum] = (FL(1.0)-pan) * attenuation;
p->rightlevel[spltNum] = pan * attenuation;
p->mode[spltNum]= split->sampleModes;
p->attack[spltNum] = split->attack*CS_EKR;
p->decay[spltNum] = split->decay*CS_EKR;
p->sustain[spltNum] = split->sustain;
p->release[spltNum] = split->release*CS_EKR;
if (*p->ienv > 1) {
p->attr[spltNum] = 1.0/(CS_EKR*split->attack);
p->decr[spltNum] = pow((split->sustain+0.0001),