diff options
| author |  Anton Lundin <glance@acc.umu.se> | 2014-06-29 20:23:00 +0200 |
|---|---|---|
| committer |  Dirk Hohndel <dirk@hohndel.org> | 2014-06-29 17:16:43 -0700 |
| commit | 537beb319be5eff3f522766afa3f31404e692288 (patch) | |
| tree | fda76f3cfca95c3d3cc3aec1d2cdb074d17827bb /profile.c | |
| parent | b2288e1e3d231ed9d5629942730d49cb7ffec96b (diff) | |
| download | subsurface-537beb319be5eff3f522766afa3f31404e692288.tar.gz | |
Only calculate deco stops, TTS and NDL every 30s
This introduces a limiter that we only calculate deco stop, TTS and NDL
with a minimum of 30s intervall and just reused the values from the
previous sample in other cases.
I run my OSTC3 at 2s sample intervall so this is a 15x speedup in that
case.
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Diffstat (limited to 'profile.c')
| -rw-r--r-- | profile.c | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -1088,6 +1088,7 @@ void calculate_deco_information(struct dive *dive, struct divecomputer *dc, stru int i; double surface_pressure = (dc->surface_pressure.mbar ? dc->surface_pressure.mbar : get_surface_pressure_in_mbar(dive, true)) / 1000.0; double tissue_tolerance = 0; + int last_ndl_tts_calc_time = 0; for (i = 1; i < pi->nr; i++) { struct plot_data *entry = pi->entry + i; int j, t0 = (entry - 1)->sec, t1 = entry->sec; @@ -1112,6 +1113,17 @@ void calculate_deco_information(struct dive *dive, struct divecomputer *dc, stru /* should we do more calculations? * We don't for print-mode because this info doesn't show up there */ if (prefs.calcndltts && !print_mode) { + /* only calculate ndl/tts on every 30 seconds */ + if ((entry->sec - last_ndl_tts_calc_time) < 30) { + struct plot_data *prev_entry = (entry - 1); + entry->stoptime_calc = prev_entry->stoptime_calc; + entry->stopdepth_calc = prev_entry->stopdepth_calc; + entry->tts_calc = prev_entry->tts_calc; + entry->ndl_calc = prev_entry->ndl_calc; + continue; + } + last_ndl_tts_calc_time = entry->sec; + /* We are going to mess up deco state, so store it for later restore */ char *cache_data = NULL; cache_deco_state(tissue_tolerance, &cache_data); |