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WinMME based midi input/output for portaudio backend

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TODO:

Use MMCSS to elevate thread priorities
Enable/test and fix SYSEX related code
This commit is contained in:
Tim Mayberry 2015-05-17 20:55:04 +10:00
parent b12f865a4a
commit e258c827e2
18 changed files with 2074 additions and 72 deletions
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53
libs/backends/portaudio/midi_util.cc Normal file
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/*
* Copyright (C) 2015 Tim Mayberry <mojofunk@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "midi_util.h"
int get_midi_msg_length (uint8_t status_byte)
{
// define these with meaningful names
switch (status_byte & 0xf0) {
case 0x80:
case 0x90:
case 0xa0:
case 0xb0:
case 0xe0:
return 3;
case 0xc0:
case 0xd0:
return 2;
case 0xf0:
switch (status_byte) {
case 0xf0:
return 0;
case 0xf1:
case 0xf3:
return 2;
case 0xf2:
return 3;
case 0xf4:
case 0xf5:
case 0xf7:
case 0xfd:
break;
default:
return 1;
}
}
return -1;
}