17 Dec
2002
17 Dec
'02
10:13 p.m.
Just one issue: Is float32 sufficient for tempo?
(We'd need to switch
to 64 byte events, or use double events to handle 64 bits +
ramping...)
Position could just be double, and no ramping, right? (No problem
fitting that in a 32 byte event.) Provided that adding a float to a
double should extend the float to double first, you'd actually have
to *make* this go wrong explicitly, to break anything.
Just to play devils advocate:
METER: uint32_t
meter & 0xffc00000 = beats-per-measure whole (0-1024)
meter & 0x003ff000 = beats-per-measure decimal (1/1000 increments)
meter & 0x00000fff = beat-note denominator (0-4096)
Obviously any of those field widths can be adjusted. I just wanted to point
out that we CAN transport that data in a single 32 bit field. Especially
since the 'float' values we're talking about tend towards simple fractions.
Now is someone going to tell me they have PI beats per measure?
I need to go eat. I'll read the remaining 30 emails when I get home :)
the METER event needs to include
beats-per-measure (floating point value) [ 3, 5, 7, 9.5 etc ]
beat-note-value (floating point value) [quarter,1/16th, etc]
Would two floats (32 bit) do?