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-rw-r--r--externals/grill/xsample/pd/xgroove~.pd296
-rw-r--r--externals/grill/xsample/source/groove.cpp239
-rw-r--r--externals/grill/xsample/source/main.h6
3 files changed, 310 insertions, 231 deletions
diff --git a/externals/grill/xsample/pd/xgroove~.pd b/externals/grill/xsample/pd/xgroove~.pd
index 012dcb92..b2b84517 100644
--- a/externals/grill/xsample/pd/xgroove~.pd
+++ b/externals/grill/xsample/pd/xgroove~.pd
@@ -1,6 +1,6 @@
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diff --git a/externals/grill/xsample/source/groove.cpp b/externals/grill/xsample/source/groove.cpp
index dc268e91..0da9087c 100644
--- a/externals/grill/xsample/source/groove.cpp
+++ b/externals/grill/xsample/source/groove.cpp
@@ -43,20 +43,26 @@ public:
virtual V m_all();
virtual V m_min(F mn);
virtual V m_max(F mx);
-
+
+ V ms_xfade(I xf);
+
V ms_xzone(F xz);
- V mg_xzone(F &xz);
- V m_xsymm(F xz);
+ V mg_xzone(F &xz) { xz = _xzone*s2u; }
+
V m_xshape(I argc = 0,const t_atom *argv = NULL);
inline V ms_xshape(const AtomList &ret) { m_xshape(ret.Count(),ret.Atoms()); }
V mg_xshape(AtomList &ret) const;
- V m_xkeep(BL k);
enum xs_loop {
xsl__ = -1, // don't change
xsl_once = 0,xsl_loop,xsl_bidir
};
-
+
+ enum xs_fade {
+ xsf__ = -1, // don't change
+ xsf_keeplooppos = 0,xsf_keeplooplen,xsf_keepfade,xsf_inside
+ };
+
V m_loop(xs_loop lp = xsl__);
protected:
@@ -65,12 +71,12 @@ protected:
D curpos; // in samples
I bidir;
- F _xzone,xzone,xsymm;
+ F _xzone,xzone;
L znsmin,znsmax;
+ xs_fade xfade;
I xshape;
F xshparam;
D znmin,znmax;
- BL xkeep;
S **znbuf;
S *znpos,*znmul,*znidx;
I pblksz;
@@ -129,13 +135,11 @@ private:
FLEXT_CALLBACK_F(m_max)
FLEXT_CALLBACK(m_all)
+ FLEXT_CALLSET_I(ms_xfade)
+ FLEXT_ATTRGET_I(xfade)
FLEXT_CALLSET_F(ms_xzone)
FLEXT_CALLGET_F(mg_xzone)
- FLEXT_CALLSET_F(m_xsymm)
- FLEXT_ATTRGET_F(xsymm)
FLEXT_CALLVAR_V(mg_xshape,ms_xshape)
- FLEXT_CALLSET_B(m_xkeep)
- FLEXT_ATTRGET_B(xkeep)
FLEXT_CALLVAR_F(mg_pos,m_pos)
FLEXT_CALLSET_F(m_min)
@@ -163,16 +167,15 @@ V xgroove::setup(t_classid c)
FLEXT_CADDATTR_VAR_E(c,"loop",loopmode,m_loop);
+ FLEXT_CADDATTR_VAR(c,"xfade",xfade,ms_xfade);
FLEXT_CADDATTR_VAR(c,"xzone",mg_xzone,ms_xzone);
- FLEXT_CADDATTR_VAR(c,"xsymm",xsymm,m_xsymm);
FLEXT_CADDATTR_VAR(c,"xshape",mg_xshape,ms_xshape);
- FLEXT_CADDATTR_VAR(c,"xkeep",xkeep,m_xkeep);
}
xgroove::xgroove(I argc,const t_atom *argv):
loopmode(xsl_loop),curpos(0),
- _xzone(0),xzone(0),xsymm(0.5),xkeep(false),pblksz(0),
- xshape(0),xshparam(1),
+ _xzone(0),xzone(0),pblksz(0),
+ xfade(xsf_keeplooppos),xshape(0),xshparam(1),
znbuf(NULL),znmul(NULL),znidx(NULL),znpos(NULL),
bidir(1)
{
@@ -216,24 +219,26 @@ xgroove::xgroove(I argc,const t_atom *argv):
AddOutFloat("Ending point (rounded to frame)"); // play max
AddOutBang("Bang on loop end/rollover"); // loop bang
+ // don't know vector size yet -> wait for m_dsp
znbuf = new S *[outchns];
- for(I i = 0; i < outchns; ++i) znbuf[i] = new S[0];
- znpos = new S[0]; // don't know vector size yet -> wait for m_dsp
- znidx = new S[0];
+ for(I i = 0; i < outchns; ++i) znbuf[i] = NULL;
+ znpos = NULL;
+ znidx = NULL;
znmul = new S[XZONE_TABLE+1];
+
m_xshape();
}
xgroove::~xgroove()
{
if(znbuf) {
- for(I i = 0; i < outchns; ++i) delete[] znbuf[i];
+ for(I i = 0; i < outchns; ++i) if(znbuf[i]) delete[] znbuf[i];
delete[] znbuf;
}
- if(znmul) delete[] znmul;
if(znpos) delete[] znpos;
if(znidx) delete[] znidx;
+ delete[] znmul;
}
BL xgroove::Init()
@@ -259,7 +264,8 @@ V xgroove::m_min(F mn)
{
xsample::m_min(mn);
m_pos(curpos*s2u);
- do_xzone();
+// do_xzone();
+ s_dsp();
outputmin();
}
@@ -267,7 +273,8 @@ V xgroove::m_max(F mx)
{
xsample::m_max(mx);
m_pos(curpos*s2u);
- do_xzone();
+// do_xzone();
+ s_dsp();
outputmax();
}
@@ -279,7 +286,8 @@ V xgroove::m_pos(F pos)
V xgroove::m_all()
{
xsample::m_all();
- do_xzone();
+// do_xzone();
+ s_dsp();
outputmin();
outputmax();
}
@@ -291,6 +299,13 @@ BL xgroove::m_reset()
return xsample::m_reset();
}
+V xgroove::ms_xfade(I xf)
+{
+ xfade = (xs_fade)xf;
+ // do_xzone();
+ s_dsp();
+}
+
V xgroove::ms_xzone(F xz)
{
bufchk();
@@ -299,24 +314,6 @@ V xgroove::ms_xzone(F xz)
s_dsp();
}
-V xgroove::mg_xzone(F &xz)
-{
- xz = _xzone*s2u;
-}
-
-V xgroove::m_xsymm(F xs)
-{
- if(xs < 0)
- xsymm = -1;
- else if(xs <= 1)
- xsymm = xs;
- else {
- post("%s - xsymm value out of range - set to center (0.5)",thisName());
- xsymm = 0.5;
- }
- do_xzone();
-}
-
V xgroove::m_xshape(I argc,const t_atom *argv)
{
const F pi = 3.14159265358979f;
@@ -360,61 +357,77 @@ V xgroove::mg_xshape(AtomList &ret) const
}
-V xgroove::m_xkeep(BL k)
-{
- xkeep = k;
- do_xzone();
-}
-
V xgroove::do_xzone()
{
if(!s2u) return; // this can happen if DSP is off
xzone = _xzone; // make a copy for changing it
- znsmin = curmin,znsmax = curmax;
- I plen = znsmax-znsmin; //curlen;
- if(xsymm < 0) {
- // crossfade zone is inside the loop (-> loop is shorter than nominal!)
- if(xzone >= plen) xzone = plen-1;
- znmin = znsmin+xzone,znmax = znsmax-xzone;
+ if(xfade == xsf_inside) { // fade zone goes inside the loop -> loop gets shorter
+ const L maxfd = (curmax-curmin)/2;
+ if(xzone > maxfd) xzone = maxfd;
+
+ znsmin = curmin,znsmax = curmax;
}
- else {
- // desired crossfade points
- znmin = znsmin+xzone*xsymm,znmax = znsmax+xzone*(xsymm-1);
- // extra space at beginning and end
- D o1 = znmin-xzone,o2 = buf->Frames()-(znmax+xzone);
-
- if(o1 < 0 || o2 < 0) { // or (o1*o2 < 0)
- if(o1+o2 < 0) {
- // must reduce crossfade/loop length
- if(!xkeep) {
- // prefer preservation of cross-fade length
- if(xzone*2 >= plen) // have to reduce cross-fade length
- xzone = plen/2;
- znmin = xzone,znmax = buf->Frames()-xzone;
- }
- else {
- // prefer preservation of loop length
- znmin += o1,znmax -= o2;
- xzone = (buf->Frames()-(znmax-znmin))/2;
- }
- znsmin = 0,znsmax = buf->Frames();
- }
- else if(o1 < 0) {
- // min point is out of bounds (but enough space for mere shift)
- I i1 = (I)o1;
- znsmin -= i1,znsmax -= i1;
- znmin = znsmin+xzone*xsymm,znmax = znsmax+xzone*(xsymm-1);
- }
- else /* o2 < 0 */ {
- // max point is out of bounds (but enough space for mere shift)
- I i2 = (I)o2;
- znsmin += i2,znsmax += i2;
- znmin = znsmin+xzone*xsymm,znmax = znsmax+xzone*(xsymm-1);
- }
+ else if(xfade == xsf_keepfade) {
+ // try to keep fade zone
+ // shifting of loop bounds may happen
+
+ // restrict xzone to half of buffer
+ const L maxfd = buf->Frames()/2;
+ if(xzone > maxfd) xzone = maxfd;
+
+ znsmin = curmin-xzone/2;
+ znsmax = curmax+xzone/2;
+
+ // check buffer limits and shift bounds if necessary
+ if(znsmin < 0) {
+ znsmax -= znsmin;
+ znsmin = 0;
+ }
+ if(znsmax > buf->Frames())
+ znsmax = buf->Frames();
+ }
+ else if(xfade == xsf_keeplooplen) {
+ // try to keep loop length
+ // shifting of loop bounds may happen
+
+ const L maxfd = buf->Frames()-(curmax-curmin);
+ if(xzone > maxfd) xzone = maxfd;
+
+ znsmin = curmin-xzone/2;
+ znsmax = curmax+xzone/2;
+
+ // check buffer limits and shift bounds if necessary
+ // both cases can't happen because of xzone having been limited above
+ if(znsmin < 0) {
+ znsmax -= znsmin;
+ znsmin = 0;
+ }
+ else if(znsmax > buf->Frames()) {
+ znsmin -= znsmax-buf->Frames();
+ znsmax = buf->Frames();
+ }
+ }
+ else if(xfade == xsf_keeplooppos) {
+ // try to keep loop position and length
+
+ znsmin = curmin-xzone/2;
+ znsmax = curmax+xzone/2;
+
+ L ovr = znsmax-buf->Frames();
+ if(-znsmin > ovr) ovr = -znsmin;
+ if(ovr > 0) {
+ znsmin += ovr;
+ znsmax -= ovr;
+ xzone -= ovr*2;
}
}
+
+ znmin = znsmin+xzone;
+ znmax = znsmax-xzone;
+
+ FLEXT_ASSERT(znsmin <= znsmax && (znsmax-znsmin) >= xzone*2);
}
V xgroove::m_loop(xs_loop lp)
@@ -442,7 +455,7 @@ V xgroove::s_pos_once(I n,S *const *invecs,S *const *outvecs)
S *pos = outvecs[outchns];
BL lpbang = false;
- const D smin = curmin,smax = curmax,plen = smax-smin; //curlen;
+ const D smin = curmin,smax = curmax,plen = smax-smin;
if(buf && plen > 0) {
register D o = curpos;
@@ -450,7 +463,7 @@ V xgroove::s_pos_once(I n,S *const *invecs,S *const *outvecs)
for(I i = 0; i < n; ++i) {
const S spd = speed[i]; // must be first because the vector is reused for output!
- if(o >= smax) { o = smax; lpbang = true; }
+ if(!(o < smax)) { o = smax; lpbang = true; }
else if(o < smin) { o = smin; lpbang = true; }
pos[i] = o;
@@ -476,13 +489,13 @@ V xgroove::s_pos_c_once(I n,S *const *invecs,S *const *outvecs)
S *pos = outvecs[outchns];
BL lpbang = false;
- const D smin = curmin,smax = curmax,plen = smax-smin; //curlen;
+ const D smin = curmin,smax = curmax,plen = smax-smin;
if(buf && plen > 0) {
register D o = curpos;
for(I i = 0; i < n; ++i) {
- if(o >= smax) { o = smax; lpbang = true; }
+ if(!(o < smax)) { o = smax; lpbang = true; }
else if(o < smin) { o = smin; lpbang = true; }
pos[i] = o;
@@ -522,7 +535,7 @@ V xgroove::s_pos_loop(I n,S *const *invecs,S *const *outvecs)
vec_dst(speed,GetPrefetchConstant(1,n>>2,0),0);
#endif
- const D smin = curmin,smax = curmax,plen = smax-smin; //curlen;
+ const D smin = curmin,smax = curmax,plen = smax-smin;
if(buf && plen > 0) {
register D o = curpos;
@@ -567,7 +580,7 @@ V xgroove::s_pos_c_loop(I n,S *const *invecs,S *const *outvecs)
S *pos = outvecs[outchns];
BL lpbang = false;
- const D smin = curmin,smax = curmax,plen = smax-smin; //curlen;
+ const D smin = curmin,smax = curmax,plen = smax-smin;
if(buf && plen > 0) {
register D o = curpos;
@@ -615,11 +628,13 @@ V xgroove::s_pos_loopzn(I n,S *const *invecs,S *const *outvecs)
S *pos = outvecs[outchns];
BL lpbang = false;
+ FLEXT_ASSERT(xzone);
+
const F xz = xzone,xf = (F)XZONE_TABLE/xz;
- const D lmin = znmin,lmax = znmax,lsh = lmax+xz-lmin;
+ const D lmin = znmin,lmax = znmax,lsh = lmax-lmin+xz;
// adapt the playing bounds to the current cross-fade zone
- const I smin = znsmin,smax = znsmax,plen = smax-smin; //curlen;
+ const L smin = znsmin,smax = znsmax,plen = smax-smin;
if(buf && plen > 0) {
BL inzn = false;
@@ -629,7 +644,7 @@ V xgroove::s_pos_loopzn(I n,S *const *invecs,S *const *outvecs)
// \TODO: exploit relationships: smin <= lmin, smax >= lmax
// normalize offset
- if(o >= smax) {
+ if(!(o < smax)) {
o = fmod(o-smin,plen)+smin;
lpbang = true;
}
@@ -638,20 +653,15 @@ V xgroove::s_pos_loopzn(I n,S *const *invecs,S *const *outvecs)
lpbang = true;
}
- // now: smin <= o < smax
-
if(o >= lmax) {
// in late cross-fade zone
+ o -= lsh;
+ }
- // shift it into early zone
- o -= lsh;
- }
-
- // now: lmin-xz <= o < lmax
-
+ // now: smin <= o < smax
if(o < lmin) {
// in early cross-fade zone
- register F inp = xz-(F)(lmin-o); // 0 <= inp < xz
+ register F inp = xz+(F)(o-lmin); // 0 <= inp < xz
znidx[i] = inp*xf;
znpos[i] = lmax+inp;
inzn = true;
@@ -707,7 +717,7 @@ V xgroove::s_pos_bidir(I n,S *const *invecs,S *const *outvecs)
S *pos = outvecs[outchns];
BL lpbang = false;
- const I smin = curmin,smax = curmax,plen = smax-smin; //curlen;
+ const I smin = curmin,smax = curmax,plen = smax-smin;
if(buf && plen > 0) {
register D o = curpos;
@@ -717,7 +727,7 @@ V xgroove::s_pos_bidir(I n,S *const *invecs,S *const *outvecs)
const S spd = speed[i]; // must be first because the vector is reused for output!
// normalize offset
- if(o >= smax) {
+ if(!(o < smax)) {
o = smax-fmod(o-smin,plen); // mirror the position at smax
bd = -bd;
lpbang = true;
@@ -752,25 +762,26 @@ V xgroove::s_dsp()
switch(loopmode) {
case xsl_once: SETSIGFUN(posfun,SIGFUN(s_pos_once)); break;
case xsl_loop:
- if(_xzone > 0) {
- // xzone might not be set yet (is done in do_xzone() )
+ // xzone might not be set yet (is done in do_xzone() )
+ do_xzone(); // recalculate (s2u may have been 0 before)
+ if(xzone > 0) {
const I blksz = Blocksize();
if(pblksz != blksz) {
for(I o = 0; o < outchns; ++o) {
- delete[] znbuf[o];
+ if(znbuf[o]) delete[] znbuf[o];
znbuf[o] = new S[blksz];
}
- delete[] znpos; znpos = new S[blksz];
- delete[] znidx; znidx = new S[blksz];
+ if(znpos) delete[] znpos;
+ znpos = new S[blksz];
+ if(znidx) delete[] znidx;
+ znidx = new S[blksz];
pblksz = blksz;
}
- do_xzone(); // recalculate (s2u may have been 0 before)
-
SETSIGFUN(posfun,SIGFUN(s_pos_loopzn));
// linear interpolation should be just ok for fade zone, no?
diff --git a/externals/grill/xsample/source/main.h b/externals/grill/xsample/source/main.h
index 15dee169..f19dce45 100644
--- a/externals/grill/xsample/source/main.h
+++ b/externals/grill/xsample/source/main.h
@@ -12,7 +12,7 @@ WARRANTIES, see the file, "license.txt," in this distribution.
#define __XSAMPLE_H
-#define XSAMPLE_VERSION "0.3.0pre18"
+#define XSAMPLE_VERSION "0.3.0pre19"
#define FLEXT_ATTRIBUTES 1
@@ -113,7 +113,7 @@ public:
enum xs_intp {
xsi__ = -1, // don't change
- xsi_none = 0,xsi_4p,xsi_lin
+ xsi_none = 0,xsi_lin,xsi_4p
};
enum xs_sclmd {
@@ -146,7 +146,7 @@ protected:
xs_unit unitmode; //iunitmode,ounitmode;
xs_sclmd sclmode; //isclmode,osclmode;
- I curmin,curmax; //,curlen; // in samples
+ L curmin,curmax; //,curlen; // in samples
I sclmin; // in samples
F sclmul;
F s2u; // sample to unit conversion factor
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-25 17:08:07 +0000