107 lines
3.8 KiB
C#
107 lines
3.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics.Metrics;
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using System.Linq;
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using System.Text;
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using System.Threading.Channels;
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using System.Threading.Tasks;
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namespace RushMidiLibrary {
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public struct MidiShortMessage {
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public UIntPtr dwParam1;
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public UIntPtr dwParam2;
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public MidiShortMessage(UIntPtr dwParam1, UIntPtr dwParam2) {
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this.dwParam1 = dwParam1;
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this.dwParam2 = dwParam2;
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}
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public bool IsNoteOn {
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get { return ((int)dwParam1 & 0xf0) == 0x90; }
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}
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public void GetNoteOn(out MidiChannel channel, out int noteId, out int velocity, out uint timestamp) {
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channel = (MidiChannel)((int)dwParam1 & 0x0f);
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noteId = ((int)dwParam1 & 0xff00) >> 8;
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velocity = ((int)dwParam1 & 0xff0000) >> 16;
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timestamp = (uint)dwParam2;
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}
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public bool IsNoteOff {
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get { return ((int)dwParam1 & 0xf0) == 0x80; }
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}
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public void GetNoteOff(out MidiChannel channel, out int noteId, out int velocity, out uint timestamp) {
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channel = (MidiChannel)((int)dwParam1 & 0x0f);
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noteId = ((int)dwParam1 & 0xff00) >> 8;
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velocity = ((int)dwParam1 & 0xff0000) >> 16;
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timestamp = (uint)dwParam2;
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}
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public bool IsControlChange {
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get { return ((int)dwParam1 & 0xf0) == 0xB0; }
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}
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public void GetControlChange(out MidiChannel channel, out MidiControl control, out int value, out uint timestamp) {
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channel = (MidiChannel)((int)dwParam1 & 0x0f);
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control = (MidiControl)(((int)dwParam1 & 0xff00) >> 8);
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value = ((int)dwParam1 & 0xff0000) >> 16;
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timestamp = (uint)dwParam2;
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}
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public bool IsProgramChange {
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get { return ((int)dwParam1 & 0xf0) == 0xC0; }
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}
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public void DecodeProgramChange(out MidiChannel channel, out MidiInstrument instrument, out uint timestamp) {
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channel = (MidiChannel)((int)dwParam1 & 0x0f);
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instrument = (MidiInstrument)(((int)dwParam1 & 0xff00) >> 8);
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timestamp = (uint)dwParam2;
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}
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public bool IsPitchBend {
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get { return ((int)dwParam1 & 0xf0) == 0xE0; }
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}
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public void GetPitchBend(out MidiChannel channel, out int value, out uint timestamp) {
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channel = (MidiChannel)((int)dwParam1 & 0x0f);
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value = ((((int)dwParam1 >> 9) & 0x3f80) | (((int)dwParam1 >> 8) & 0x7f));
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timestamp = (uint)dwParam2;
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}
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public bool IsRealTime {
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get { return ((int)dwParam1 & 0xf8) == 0xF8; }
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}
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public void GetRealTime(out MidiRealTimeMessageType msgType, out uint timestamp) {
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int messageType = (int)dwParam1 & 0x07;
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switch (messageType) {
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case 0:
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msgType = MidiRealTimeMessageType.TimingClock;
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break;
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case 2:
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msgType = MidiRealTimeMessageType.Start;
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break;
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case 3:
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msgType = MidiRealTimeMessageType.Continue;
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break;
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case 4:
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msgType = MidiRealTimeMessageType.Stop;
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break;
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case 6:
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msgType = MidiRealTimeMessageType.ActiveSensing;
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break;
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case 7:
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msgType = MidiRealTimeMessageType.SystemReset;
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break;
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case 1:
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case 5:
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msgType = MidiRealTimeMessageType.Undefined;
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break;
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default:
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throw new ArgumentException("Unknown realtime message");
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}
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timestamp = (uint)dwParam2;
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}
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}
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}
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