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Diffstat (limited to 'externals/grill/xsample/source/main.cpp')
| -rw-r--r-- | externals/grill/xsample/source/main.cpp | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/externals/grill/xsample/source/main.cpp b/externals/grill/xsample/source/main.cpp new file mode 100644 index 00000000..410746ff --- /dev/null +++ b/externals/grill/xsample/source/main.cpp @@ -0,0 +1,203 @@ +/* + +xsample - extended sample objects for Max/MSP and pd (pure data) + +Copyright (c) 2001,2002 Thomas Grill (xovo@gmx.net) +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 +V lib_setup() +{ + post("xsample objects, version " XSAMPLE_VERSION ", (C)2001,2002 Thomas Grill"); + post("xsample: xrecord~, xplay~, xgroove~ - send objects a 'help' message to get assistance"); + post(""); + + // call the objects' setup routines + FLEXT_DSP_SETUP(xrecord); + FLEXT_DSP_SETUP(xplay); + FLEXT_DSP_SETUP(xgroove); + +#ifdef MAXMSP + // That's not the right place..... (doesn't work) + finder_addclass((char *)"MSP Sampling",(char *)"xgroove~"); + finder_addclass((char *)"MSP Sampling",(char *)"xplay~"); + finder_addclass((char *)"MSP Sampling",(char *)"xrecord~"); +#endif + +} + +// setup the library +FLEXT_LIB_SETUP(xsample,lib_setup) + +// ------------------------------ + +xsample::xsample(): + buf(NULL), +#ifdef PD + unitmode(xsu_sample), // PD defaults to samples +#else + unitmode(xsu_ms), // Max/MSP defaults to milliseconds +#endif + sclmode(xss_unitsinbuf), + curmin(0),curmax(1<<30) +{ + FLEXT_ADDBANG(0,m_start); + FLEXT_ADDMETHOD_(0,"start",m_start); + FLEXT_ADDMETHOD_(0,"stop",m_stop); + + FLEXT_ADDMETHOD_(0,"set",m_set); + FLEXT_ADDMETHOD_(0,"print",m_print); + FLEXT_ADDMETHOD_(0,"refresh",m_refresh); + FLEXT_ADDMETHOD_(0,"reset",m_reset); + + FLEXT_ADDMETHOD_E(0,"units",m_units); + FLEXT_ADDMETHOD_E(0,"sclmode",m_sclmode); +} + +xsample::~xsample() +{ +// m_enable(false); // switch off DSP + + if(buf) delete buf; +} + + + +I xsample::m_set(I argc, t_atom *argv) +{ + return buf->Set(argc >= 1?GetASymbol(argv[0]):NULL); +} + +BL xsample::m_refresh() +{ +// bufchk(); + + BL ret; + if(buf->Set()) { s_dsp(); ret = true; } // channel count may have changed + else ret = false; + + m_min((F)curmin*s2u); // also checks pos + m_max((F)curmax*s2u); // also checks pos + + return ret; +} + +BL xsample::m_reset() +{ +// bufchk(); + + BL ret; + if(buf->Set()) { s_dsp(); ret = true; } // channel count may have changed + else ret = false; + + m_units(); + m_sclmode(); + m_min(0); + m_max(buf->Frames()*s2u); + + return ret; +} + +V xsample::m_loadbang() +{ + m_reset(); +} + +V xsample::m_units(xs_unit mode) +{ + bufchk(); + + if(mode != xsu__) unitmode = mode; + switch(unitmode) { + case xsu_sample: // samples + s2u = 1; + break; + case xsu_buffer: // buffer size + s2u = 1.f/buf->Frames(); + 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()); + } +} + +V xsample::m_sclmode(xs_sclmd mode) +{ + bufchk(); + + if(mode != xss__) sclmode = mode; + switch(sclmode) { + case 0: // samples/units + sclmin = 0; sclmul = s2u; + break; + case 1: // samples/units from recmin to recmax + sclmin = curmin; sclmul = s2u; + break; + case 2: // unity between 0 and buffer size + sclmin = 0; sclmul = buf->Frames()?1.f/buf->Frames():0; + break; + case 3: // unity between recmin and recmax +// sclmin = curmin; sclmul = curlen?1.f/curlen:0; + sclmin = curmin; sclmul = curmin != curmax?1.f/(curmax-curmin):0; + break; + default: + post("%s: Unknown scale mode",thisName()); + } +} + +V xsample::m_min(F mn) +{ + bufchk(); + + mn /= s2u; // conversion to samples + if(mn < 0) mn = 0; + else if(mn > curmax) mn = (F)curmax; + curmin = (I)(mn+.5); +// curlen = curmax-curmin; + + m_sclmode(); +} + +V xsample::m_max(F mx) +{ + bufchk(); + + mx /= s2u; // conversion to samples + if(mx > buf->Frames()) mx = (F)buf->Frames(); + else if(mx < curmin) mx = (F)curmin; + curmax = (I)(mx+.5); +// curlen = curmax-curmin; + + m_sclmode(); +} + +V xsample::m_all() +{ + bufchk(); + +// curlen = (curmax = buf->Frames())-(curmin = 0); + curmin = 0; curmax = buf->Frames(); + m_sclmode(); +} + +V xsample::m_dsp(I /*n*/,S *const * /*insigs*/,S *const * /*outsigs*/) +{ + // this is hopefully called at change of sample rate ?! + + if(!m_refresh()) s_dsp(); +} + + + + |