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/*
opcodes.cpp
Copyright (C) 2021 Richard Knight
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <plugin.h>
#include "linux/joystick.h"
#include "joystick.hpp"
struct jstick : csnd::Plugin<2, 1> {
static constexpr char const *otypes = "k[]k[]";
static constexpr char const *itypes = "i";
Joystick js;
MYFLT* saxis;
MYFLT* sbuttons;
int init() {
csound->plugin_deinit(this);
csnd::Vector<MYFLT> &axis = outargs.vector_data<MYFLT>(0);
csnd::Vector<MYFLT> &buttons = outargs.vector_data<MYFLT>(1);
saxis = (MYFLT*) csound->calloc(4*sizeof(MYFLT));
sbuttons = (MYFLT*) csound->calloc(12*sizeof(MYFLT));
axis.init(csound, 4);
buttons.init(csound, 12);
js.init((int)inargs[0]);
if (!js.isFound()) {
return csound->init_error("cannot open joypad");
}
return OK;
}
int deinit() {
delete js;
return OK;
}
int kperf() {
csnd::Vector<MYFLT> &axis = outargs.vector_data<MYFLT>(0);
csnd::Vector<MYFLT> &buttons = outargs.vector_data<MYFLT>(1);
axis.init(csound, 4);
buttons.init(csound, 12);
JoystickEvent event;
bool isAxis;
int type;
MYFLT val;
while (js.sample(&event)) {
isAxis = event.isAxis();
type = event.number;
val = event.value;
}
if (isAxis) {
saxis[type] = FL(((32767.0)+val)/65534);
} else {
sbuttons[type] = val;
}
memcpy(axis.data_array(), saxis, sizeof(MYFLT)*4);
memcpy(buttons.data_array(), sbuttons, sizeof(MYFLT)*12);
return OK;
}
};
#include <modload.h>
void csnd::on_load(csnd::Csound *csound) {
csnd::plugin<jstick>(csound, "jstick", csnd::thread::ik);
}
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