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53 lines
1.4 KiB
53 lines
1.4 KiB
package com.levien.synthesizer.android;
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import com.levien.synthesizer.core.midi.MessageOutputProcessor;
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/**
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* JNI container for connecting to C++ synth engine. The actual implementation is in the cpp/src
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* subdirectory of the repository, and interfaces with JNI.
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*
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* This class implements the MessageOutputProcessor interface, so you can use those methods to
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* actually send MIDI data.
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*/
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public class AndroidGlue extends MessageOutputProcessor {
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/**
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* Create and initialize the engine. This should be done once per process.
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*/
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public native void start(int sample_rate, int buf_size);
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/**
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* Shut down the OpenSL ES engine and audio synthesizer.
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*/
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public native void shutdown();
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/**
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* Start or pause the actual sound generation.
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*
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* @param isPlaying Whether the sound generation should be enabled or no.
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*/
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public native void setPlayState(boolean isPlaying);
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/**
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* Send a MIDI message. Currently supported messages include DX7 sysex data, and note-on/note-off,
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* but it will expand.
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*
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* @param midiData The midi data to send.
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*/
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public native void sendMidi(byte[] midiData);
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public void onMessage(byte[] midiData) {
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sendMidi(midiData);
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}
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/**
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* @return Number of stats bytes available from synth core
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*/
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public native int statsBytesAvailable();
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public native int readStatsBytes(byte[] buf, int off, int len);
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static {
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System.loadLibrary("synth");
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}
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}
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