30 lines
820 B
C
30 lines
820 B
C
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#pragma once
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#include <cstdint>
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namespace midi {
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constexpr uint8_t statusMask { 0b11110000 };
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constexpr uint8_t channelMask { 0b00001111 };
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constexpr uint8_t noteOff { 0x80 };
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constexpr uint8_t noteOn { 0x90 };
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constexpr uint8_t polyphonicPressure { 0xA0 };
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constexpr uint8_t controlChange { 0xB0 };
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constexpr uint8_t programChange { 0xC0 };
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constexpr uint8_t channelPressure { 0xD0 };
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constexpr uint8_t pitchBend { 0xE0 };
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constexpr uint8_t systemMessage { 0xF0 };
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constexpr uint8_t status(uint8_t midiStatusByte)
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{
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return midiStatusByte & statusMask;
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}
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constexpr uint8_t channel(uint8_t midiStatusByte)
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{
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return midiStatusByte & channelMask;
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}
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constexpr int buildAndCenterPitch(uint8_t firstByte, uint8_t secondByte)
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{
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return (int)(((unsigned int)secondByte << 7) + (unsigned int)firstByte) - 8192;
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}
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}
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