sintonia/library/ecasound-2.7.2/libecasound/osc-gen-file.cpp

117 lines
3.3 KiB
C++

// ------------------------------------------------------------------------
// osc-gen-file.cpp: Generic oscillator using envelope presets
// Copyright (C) 1999-2002,2004,2007 Kai Vehmanen
//
// Attributes:
// eca-style-version: 3
//
// This program is fre software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
// ------------------------------------------------------------------------
#include <cstdlib>
#include <vector>
#include <string>
#include <kvu_numtostr.h>
#include <kvu_utils.h>
#include "resource-file.h"
#include "eca-resources.h"
#include "osc-gen-file.h"
#include "eca-logger.h"
GENERIC_OSCILLATOR_FILE::GENERIC_OSCILLATOR_FILE(double freq, int mode)
: GENERIC_OSCILLATOR(freq, mode)
{
set_parameter(1, get_parameter(1));
set_parameter(2, mode);
}
GENERIC_OSCILLATOR_FILE::~GENERIC_OSCILLATOR_FILE (void)
{
}
void GENERIC_OSCILLATOR_FILE::get_oscillator_preset(int preset)
{
ECA_RESOURCES ecarc;
ECA_LOG_MSG(ECA_LOGGER::system_objects, "Opening genosc envelope file.");
std::string user_filename =
ecarc.resource("user-resource-directory") + "/" + ecarc.resource("resource-file-genosc-envelopes");
std::string pname = kvu_numtostr(preset);
RESOURCE_FILE rc;
rc.resource_file(user_filename);
rc.load();
if (rc.has(pname) != true) {
std::string global_filename =
ecarc.resource("resource-directory") + "/" + ecarc.resource("resource-file-genosc-envelopes");
rc.resource_file(global_filename);
rc.load();
}
if (rc.has(pname) == true) {
parse_envelope(rc.resource(pname));
}
else {
ECA_LOG_MSG(ECA_LOGGER::info, "ERROR: Oscillator preset " + pname + " not found!");
}
}
void GENERIC_OSCILLATOR_FILE::parse_envelope(const std::string& str)
{
std::vector<std::string> tokens = kvu_string_to_words(str);
if (tokens.size() > 0) {
set_start_value(atof(tokens[0].c_str()));
if (tokens.size() > 1) {
set_end_value(atof(tokens[1].c_str()));
ienvelope_rep.resize(tokens.size() - 2);
for(unsigned int n = 2; n < tokens.size(); n++) {
ienvelope_rep[n - 2] = atof(tokens[n].c_str());
}
}
}
prepare_envelope();
}
void GENERIC_OSCILLATOR_FILE::set_parameter(int param, CONTROLLER_SOURCE::parameter_t value)
{
switch (param) {
case 1:
case 2:
GENERIC_OSCILLATOR::set_parameter(param, value);
break;
case 3:
preset_rep = static_cast<int>(value);
get_oscillator_preset(preset_rep);
break;
}
}
CONTROLLER_SOURCE::parameter_t GENERIC_OSCILLATOR_FILE::get_parameter(int param) const
{
switch (param) {
case 1:
case 2:
return GENERIC_OSCILLATOR::get_parameter(param);
case 3:
return static_cast<parameter_t>(preset_rep);
}
return 0.0;
}