1 files changed, 87 insertions, 0 deletions
diff --git a/src/opcodes.cpp b/src/opcodes.cpp
new file mode 100644
index 0000000..d3e3c9b
--- /dev/null
+++ b/src/opcodes.cpp
@@ -0,0 +1,87 @@
+/*
+    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);
+}