libcw/cwDynRefTbl.cpp
2023-08-20 17:14:52 -04:00

166 lines
3.7 KiB
C++

#include "cwCommon.h"
#include "cwLog.h"
#include "cwCommonImpl.h"
#include "cwMem.h"
#include "cwText.h"
#include "cwObject.h"
#include "cwMidi.h"
#include "cwDynRefTbl.h"
namespace cw
{
namespace dyn_ref_tbl
{
typedef struct dyn_ref_tbl_str
{
dyn_ref_t* dynRefA;
unsigned dynRefN;
} dyn_ref_tbl_t;
dyn_ref_tbl_t* _handleToPtr( handle_t h )
{ return handleToPtr<handle_t,dyn_ref_tbl_t>(h); }
rc_t _destroy( dyn_ref_tbl_t* p )
{
rc_t rc = kOkRC;
auto relse = [](dyn_ref_t& x) { mem::release(x.marker); };
std::for_each(p->dynRefA, p->dynRefA+p->dynRefN, relse );
mem::release(p->dynRefA);
mem::release(p);
return rc;
}
rc_t _parse_cfg( dyn_ref_tbl_t* p, const object_t* cfg )
{
rc_t rc = kOkRC;
// parse the dynamics ref. array
p->dynRefN = cfg->child_count();
if( p->dynRefN == 0 )
cwLogWarning("The dynamic reference array cfg. is empty.");
else
{
p->dynRefA = mem::allocZ<dyn_ref_t>(p->dynRefN);
for(unsigned i=0; i<p->dynRefN; ++i)
{
const object_t* r = cfg->child_ele(i);
const char* marker = nullptr;
if((rc = r->getv("mark", marker,
"level", p->dynRefA[i].level,
"vel", p->dynRefA[i].velocity)) != kOkRC )
{
rc = cwLogError(kSyntaxErrorRC,"Error parsing the dynamics reference array.");
goto errLabel;
}
p->dynRefA[i].marker = mem::duplStr(marker);
}
}
errLabel:
return rc;
}
}
}
cw::rc_t cw::dyn_ref_tbl::create( handle_t& hRef, const object_t* cfg )
{
rc_t rc;
if((rc = destroy(hRef)) != kOkRC )
return rc;
dyn_ref_tbl_t* p = mem::allocZ<dyn_ref_tbl_t>();
if((rc = _parse_cfg( p, cfg )) != kOkRC )
{
rc = cwLogError(rc,"Dynamics reference table parse failed.");
goto errLabel;
}
hRef.set(p);
errLabel:
return rc;
}
cw::rc_t cw::dyn_ref_tbl::destroy( handle_t& hRef )
{
rc_t rc = kOkRC;
if(!hRef.isValid())
return rc;
dyn_ref_tbl_t* p = _handleToPtr(hRef);
if((rc = _destroy(p)) != kOkRC )
return rc;
hRef.clear();
return rc;
}
const char* cw::dyn_ref_tbl::level_to_marker( handle_t h, unsigned level )
{
dyn_ref_tbl_t* p = _handleToPtr(h);
for(unsigned i=0; i<p->dynRefN; ++i)
if( p->dynRefA[i].level )
return p->dynRefA[i].marker;
return nullptr;
}
unsigned cw::dyn_ref_tbl::marker_to_level( handle_t h, const char* marker )
{
dyn_ref_tbl_t* p = _handleToPtr(h);
for(unsigned i=0; i<p->dynRefN; ++i)
if( textIsEqual(p->dynRefA[i].marker,marker) )
return p->dynRefA[i].level;
return kInvalidIdx;
}
cw::midi::byte_t cw::dyn_ref_tbl::level_to_velocity( handle_t h , unsigned level )
{
dyn_ref_tbl_t* p = _handleToPtr(h);
for(unsigned i=0; i<p->dynRefN; ++i)
if( p->dynRefA[i].level == level )
return p->dynRefA[i].velocity;
return midi::kInvalidMidiByte;
}
unsigned cw::dyn_ref_tbl::velocity_to_level( handle_t h, midi::byte_t vel )
{
dyn_ref_tbl_t* p = _handleToPtr(h);
for(unsigned i=0; i<p->dynRefN; ++i)
if( p->dynRefA[i].velocity > vel )
{
midi::byte_t d0 = p->dynRefA[i].velocity - vel;
midi::byte_t d1 = i>0 ? (vel - p->dynRefA[i-1].velocity) : d0;
unsigned j = d0 <= d1 ? i : i-1;
return p->dynRefA[j].level;
}
return p->dynRefA[ p->dynRefN-1 ].velocity;
}
void cw::dyn_ref_tbl::report( handle_t h )
{
dyn_ref_tbl_t* p = _handleToPtr(h);
auto rpt = [](dyn_ref_t& x) { printf("%2i %3i %s\n",x.level,x.velocity,x.marker); };
std::for_each(p->dynRefA,p->dynRefA+p->dynRefN, rpt );
}