126 lines
3.6 KiB
C++
126 lines
3.6 KiB
C++
// ------------------------------------------------------------------------
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// midi-cc.cpp: Interface to MIDI continuous controllers
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// Copyright (C) 1999,2001-2002,2005,2008 Kai Vehmanen
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//
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// Attributes:
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// eca-style-version: 3
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//
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// This program is fre software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// ------------------------------------------------------------------------
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#include <string>
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#include <iostream>
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#include <kvu_dbc.h>
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#include <kvu_message_item.h>
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// #include "eca-midi.h"
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#include "midi-client.h"
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#include "midi-server.h"
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#include "midi-cc.h"
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#include "eca-logger.h"
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CONTROLLER_SOURCE::parameter_t MIDI_CONTROLLER::value(double pos)
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{
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DBC_CHECK(server() != 0);
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parameter_t value_rep = init_value_rep;
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if (server() != 0) {
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if (trace_request_rep == true) {
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server()->add_controller_trace(channel_rep,
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controller_rep,
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static_cast<int>(value_rep * 127.0));
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trace_request_rep = false;
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}
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value_rep =
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static_cast<double>(server()->last_controller_value(channel_rep, controller_rep));
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value_rep /= 127.0;
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}
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return value_rep;
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}
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void MIDI_CONTROLLER::set_initial_value(parameter_t arg)
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{
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init_value_rep = arg;
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if (server() != 0) {
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server()->add_controller_trace(channel_rep,
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controller_rep,
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static_cast<int>(init_value_rep * 127.0));
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}
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else {
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/* add controller trace when server is available */
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trace_request_rep = true;
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}
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}
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MIDI_CONTROLLER::MIDI_CONTROLLER(int controller_number,
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int midi_channel)
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: controller_rep(controller_number),
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channel_rep(midi_channel),
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init_value_rep(0.0),
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trace_request_rep(false)
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{
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}
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void MIDI_CONTROLLER::init(void)
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{
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MESSAGE_ITEM otemp;
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otemp << "MIDI-controller initialized using controller ";
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otemp.setprecision(0);
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otemp << controller_rep << " and channel " << channel_rep << ".";
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ECA_LOG_MSG(ECA_LOGGER::user_objects, otemp.to_string());
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}
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void MIDI_CONTROLLER::set_parameter(int param, CONTROLLER_SOURCE::parameter_t value)
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{
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/* FIXME: we should really remove unused ctrl+channel traces */
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switch (param) {
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case 1:
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controller_rep = static_cast<int>(value);
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if (controller_rep < 0 ||
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controller_rep > 127) {
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controller_rep = 1;
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ECA_LOG_MSG(ECA_LOGGER::info,
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"(midi-cc) Controller number must be a number between 0 and 127. Defaulting to controller 0");
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}
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break;
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case 2:
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channel_rep = static_cast<int>(value);
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if (channel_rep < 1 ||
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channel_rep > 16) {
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channel_rep = 1;
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ECA_LOG_MSG(ECA_LOGGER::info,
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"(midi-cc) MIDI-channel must be a number between 1 and 16. Defaulting to channel 1.");
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}
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--channel_rep; /* map from 1...16 -> 0...15 */
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break;
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}
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trace_request_rep = true;
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}
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CONTROLLER_SOURCE::parameter_t MIDI_CONTROLLER::get_parameter(int param) const
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{
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switch (param) {
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case 1:
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return static_cast<parameter_t>(controller_rep);
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case 2:
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/* map from 0...15 -> 1...16 */
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return static_cast<parameter_t>(channel_rep + 1);
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}
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return 0.0;
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}
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