diff options
Diffstat (limited to 'core/dive.c')
| -rw-r--r-- | core/dive.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/core/dive.c b/core/dive.c index 6d2645cef..d46f2de1d 100644 --- a/core/dive.c +++ b/core/dive.c @@ -11,6 +11,7 @@ #include "device.h" #include "divelist.h" #include "divesite.h" +#include "errorhelper.h" #include "qthelper.h" #include "metadata.h" #include "membuffer.h" @@ -197,6 +198,31 @@ struct event *add_event(struct divecomputer *dc, unsigned int time, int type, in return ev; } +void add_gas_switch_event(struct dive *dive, struct divecomputer *dc, int seconds, int idx) +{ + /* sanity check so we don't crash */ + if (idx < 0 || idx >= dive->cylinders.nr) { + report_error("Unknown cylinder index: %d", idx); + return; + } + /* The gas switch event format is insane for historical reasons */ + struct gasmix mix = get_cylinder(dive, idx)->gasmix; + int o2 = get_o2(mix); + int he = get_he(mix); + struct event *ev; + int value; + + o2 = (o2 + 5) / 10; + he = (he + 5) / 10; + value = o2 + (he << 16); + + ev = add_event(dc, seconds, he ? SAMPLE_EVENT_GASCHANGE2 : SAMPLE_EVENT_GASCHANGE, 0, value, "gaschange"); + if (ev) { + ev->gas.index = idx; + ev->gas.mix = mix; + } +} + /* Substitutes an event in a divecomputer for another. No reordering is performed! */ void swap_event(struct divecomputer *dc, struct event *from, struct event *to) { |