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/*
xsample - extended sample objects for Max/MSP and pd (pure data)
Copyright (c) 2001-2007 Thomas Grill (gr@grrrr.org)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
#include "main.h"
// Initialization function for xsample library
static void xsample_main()
{
flext::post("-------------------------------");
flext::post("xsample objects, version " XSAMPLE_VERSION);
flext::post("");
flext::post(" xrecord~, xplay~, xgroove~ ");
flext::post(" (C)2001-2007 Thomas Grill ");
#ifdef FLEXT_DEBUG
flext::post("");
flext::post("DEBUG BUILD - " __DATE__ " " __TIME__);
#endif
flext::post("-------------------------------");
// call the objects' setup routines
FLEXT_DSP_SETUP(xrecord);
FLEXT_DSP_SETUP(xplay);
FLEXT_DSP_SETUP(xgroove);
}
// setup the library
FLEXT_LIB_SETUP(xsample,xsample_main)
// ------------------------------
void xsample::setup(t_classid c)
{
FLEXT_CADDMETHOD_(c,0,"help",m_help);
FLEXT_CADDMETHOD_(c,0,"set",m_set);
FLEXT_CADDMETHOD_(c,0,"print",m_print);
FLEXT_CADDMETHOD_(c,0,"refresh",m_refresh);
FLEXT_CADDMETHOD_(c,0,"reset",m_reset);
FLEXT_CADDATTR_VAR(c,"buffer",mg_buffer,ms_buffer);
FLEXT_CADDATTR_VAR_E(c,"units",unitmode,m_units);
FLEXT_CADDATTR_VAR_E(c,"sclmode",sclmode,m_sclmode);
FLEXT_CADDATTR_GET(c,"scale",s2u);
}
xsample::xsample():
update(xsc_all),wrap(false),
#if FLEXT_SYS == FLEXT_SYS_MAX
unitmode(xsu_ms), // Max/MSP defaults to milliseconds
#else
unitmode(xsu_sample), // PD defaults to samples
#endif
sclmode(xss_unitsinbuf),
curmin(0),curmax(1L<<(sizeof(curmax)*8-2))
{}
xsample::~xsample() {}
bool xsample::Finalize()
{
if(!flext_dsp::Finalize()) return false;
// flags have been set in constructor
Refresh();
return true;
}
int xsample::ChkBuffer(bool refresh)
{
if(!buf.Ok()) return 0;
if(UNLIKELY(buf.Update())) {
#ifdef FLEXT_DEBUG
post("%s - buffer update!",thisName());
#endif
Update(xsc_buffer);
if(refresh) {
Refresh();
return buf.Ok() && buf.Valid()?1:0;
}
else
return buf.Valid()?1:0;
}
else
return buf.Valid()?-1:0;
}
/* called after all buffer objects have been created in the patch */
void xsample::CbLoadbang()
{
ChkBuffer(true);
}
void xsample::m_set(int argc,const t_atom *argv)
{
const t_symbol *sym = argc >= 1?GetASymbol(argv[0]):NULL;
int r = buf.Set(sym);
if(LIKELY(sym) && UNLIKELY(r < 0))
post("%s - can't find buffer %s",thisName(),GetString(sym));
Update(xsc_buffer,true);
}
void xsample::m_min(float mn)
{
int ret = ChkBuffer(true);
if(LIKELY(ret) && LIKELY(s2u)) {
long cmn = CASTINT<long>(mn/s2u+0.5f); // conversion to samples
if(UNLIKELY(cmn < 0))
curmin = 0;
else if(UNLIKELY(cmn > curmax))
curmin = curmax;
else
curmin = cmn;
Update(xsc_range,true);
}
}
void xsample::m_max(float mx)
{
int ret = ChkBuffer(true);
if(LIKELY(ret) && LIKELY(s2u)) {
long cmx = CASTINT<long>(mx/s2u+0.5f); // conversion to samples
if(UNLIKELY(cmx > buf.Frames()))
curmax = buf.Frames();
else if(UNLIKELY(cmx < curmin))
curmax = curmin;
else
curmax = cmx;
Update(xsc_range,true);
}
}
bool xsample::CbDsp()
{
// this is hopefully called at change of sample rate ?!
#ifdef FLEXT_DEBUG
post("%s - DSP reset!",thisName());
#endif
// for PD at least this is also called if a table has been deleted...
// then we must reset the buffer
Update(xsc_srate|xsc_buffer,true);
return true;
}
void xsample::DoReset()
{
ResetRange();
}
void xsample::DoUpdate(unsigned int flags)
{
if(flags&xsc_buffer)
buf.Set();
if(flags&xsc_range && buf.Ok()) {
const int f = buf.Frames();
if(!wrap) {
// normalize bounds
if(curmin < 0) curmin = 0;
else if(curmin > f) curmin = f;
if(curmax > f) curmax = f;
else if(curmax < curmin) curmax = curmin;
}
else
// don't normalize
if(curmax < curmin) curmax = curmin;
}
if(flags&xsc_units) {
switch(unitmode) {
case xsu_sample: // samples
s2u = 1;
break;
case xsu_buffer: // buffer size
s2u = buf.Ok() && buf.Frames()?1.f/buf.Frames():0;
break;
case xsu_ms: // ms
s2u = 1000.f/Samplerate();
break;
case xsu_s: // s
s2u = 1.f/Samplerate();
break;
default:
post("%s - Unknown unit mode",thisName());
}
switch(sclmode) {
case xss_unitsinbuf: // samples/units
sclmin = 0; sclmul = s2u;
break;
case xss_unitsinloop: // samples/units from recmin to recmax
sclmin = curmin; sclmul = s2u;
break;
case xss_buffer: // unity between 0 and buffer size
sclmin = 0; sclmul = buf.Ok() && buf.Frames()?1.f/buf.Frames():0;
break;
case xss_loop: // unity between recmin and recmax
sclmin = curmin; sclmul = curmin < curmax?1.f/(curmax-curmin):0;
break;
default:
post("%s - Unknown scale mode",thisName());
}
}
}
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