CVS commit: [chap-midi] src/sys/sys

[Chapman Flack <chap%netbsd.org@localhost>]

Module Name:    src
Committed By:   chap
Date:           Fri Jun  9 17:08:30 UTC 2006

Modified Files:
        src/sys/sys [chap-midi]: midiio.h

Log Message:
Bit of housecleaning.

"miditune" wasn't a good name for the pitch representation (even if it
did come from the MIDI Tuning Specification) because for too many people
a 'tune' is a little ditty, not a single pitch. Changed the name to
midipitch and added a typedef midipitch_t; renamed the associated macros
consistently.

The type and operations on it are now in <sys/midiio.h> because they could
show up in userland for manipulation of the MIDI Tuning messages that
RP-012 defines. The macro MIDIPITCH_TO_HZ18 expands in userland to
ordinary libm calls, and in-kernel to the no-floating-point version in
midisyn. A few more operations are defined in userland where libm is
available.

At the same time, made midipitch_t signed. It has the bits to spare,
and such manipulations as adding several corrections and clamping the
result will be simpler with it signed.


To generate a diff of this commit:
cvs rdiff -r1.13.14.6 -r1.13.14.7 src/sys/sys/midiio.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.