54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
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/*
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* Copyright (C) 2015 Tim Mayberry <mojofunk@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "midi_util.h"
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int get_midi_msg_length (uint8_t status_byte)
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{
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// define these with meaningful names
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switch (status_byte & 0xf0) {
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case 0x80:
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case 0x90:
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case 0xa0:
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case 0xb0:
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case 0xe0:
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return 3;
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case 0xc0:
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case 0xd0:
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return 2;
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case 0xf0:
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switch (status_byte) {
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case 0xf0:
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return 0;
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case 0xf1:
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case 0xf3:
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return 2;
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case 0xf2:
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return 3;
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case 0xf4:
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case 0xf5:
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case 0xf7:
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case 0xfd:
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break;
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default:
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return 1;
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}
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}
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return -1;
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}
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