smokephil/ardour
1
0
Fork 0
mirror of https://github.com/Ardour/ardour.git synced 2026-01-30 17:03:06 +01:00
Code Issues Projects Releases Wiki Activity

BBT_Time: provide conversion to/from integer format

Browse source 
This is not guaranteed to be lossless, but with 44 bits for bars,
256 beats per bar and up to 4095 ticks per beat, it should be fine.
This commit is contained in:
Paul Davis 2023-02-13 16:46:54 -07:00
parent 2c7bfa9ead
commit 6cde958480
2 changed files with 21 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

18
libs/temporal/bbt_time.cc
View file

@ -23,6 +23,24 @@
using namespace Temporal;
int64_t
BBT_Time::as_integer () const
{
/* up to 256 beats in a bar, 4095 ticks in a beat,
and whatever is left for bars (a lot!)
*/
return (((int64_t) bars)<<20)|(beats<<12)|ticks;
}
BBT_Time
BBT_Time::from_integer (int64_t v)
{
int32_t B = v>>20;
int32_t b = (v>>12) & 0xff;
int32_t t= v & 0xfff;
return BBT_Time (B, b, t);
}
BBT_Time
BBT_Time::round_up_to_bar() const
{

3
libs/temporal/temporal/bbt_time.h
View file

@ -54,6 +54,9 @@ struct LIBTEMPORAL_API BBT_Time
int32_t beats;
int32_t ticks;
int64_t as_integer() const;
static BBT_Time from_integer (int64_t);
bool is_bar() const { return beats == 1 && ticks == 0; }
bool is_beat() const { return ticks == 0; }