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path: root/subsurface-core/dive.h
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2016-04-04Don't write back dive data that hasn't changed in gitGravatar Linus Torvalds
This caches the git ID for the dive on load, and avoids building the dive directory and hashing it on save as long as nothing has invalidated the git ID cache. That should make it much faster to write back data to the git repository, since the dive tree structure and the divecomputer blobs in particular are the bulk of it (due to all the sample data). It's not actually the git operations that are all that expensive, it's literally generating the big blob with all the snprintf() calls for the data. The git save used to be a fairly expensive with large data sets, especially noticeable on mobile with much weaker CPU's. This should speed things up by at least a factor of two. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-03-26Prevent unintentionally running as rootGravatar Robert C. Helling
Some users try to run Subsurface as root for example to get around permission problems with dive computer devices. This is a bad idea since config files get touched as root and then cannot be read as normal user anymore. This patch allows running as root only with verbose option on. We can assume if somebody manages to start subsurface as root this happens from the command line. For some reason, I couldn't get translation working at this stage. Windows version is a stub. Signed-off-by: Robert C. Helling <helling@atdotde.de> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-03-23Don't try to force depth to be unsignedGravatar Dirk Hohndel
Trying to clean up the signed vs. unsigned issues it becomes clear that forcing depth to be unsigned causes way too many problems in the code. So this commit goes the opposite direction; since we clearly aren't limited INT_MAX vs UINT_MAX, simply make more of the depth related variables signed. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-03-16When handing off a picture to a worker thread, copy it firstGravatar Robert C. Helling
as otherwise we crash when the picture is freed before the worker thread (to load from the net or to compute hashes) is finished Signed-off-by: Robert C. Helling <helling@atdotde.de> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-03-09Remove unused functionGravatar Dirk Hohndel
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-03-09Clean up signedness confusion in dive.cGravatar Dirk Hohndel
This started out as cleaning up warnings - but it actually turned into a matter of semantics and correctness. Which lead to changes in .h files which will have a ton of ripple effects. A lot more of this to come. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-02-28If salinity is not density, add density of fresh waterGravatar Robert C. Helling
There was a reported case of an import of a dive that gave a salinity of 35g/l. This is an actual salinity (an amount of salt in the water) but for subsurface the salinity is actually the density of the water. So for too small values of the salinity add the density of fresh water. Signed-off-by: Robert C. Helling <helling@atdotde.de> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-02-25gas pressures: use an actual compressibility table for airGravatar Linus Torvalds
We could in theory make this dependent on the gasmix, but for now let's just assume (incorrectly) that everything we breathe acts like air. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-02-25gas pressures: do some initial cleanupGravatar Linus Torvalds
This marks "surface_volume_multiplier()" static in preparation for changing it to use an actual honest-to-goodness compressibility estimation. Without that, it wasn't obvious that the function wasn't used in other random places. Also, remove the "wet_volume()" function. It was unused, but more importantly, it was wrong. Yes, it was the inverse of "gas_volume()", but when you calculate wet volumes from the imperial sizes, you don't actually use the "real" gas volume, you use the idealized one. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-01-04Cloud storage: fix potential crash when avoiding reloading dive listGravatar Dirk Hohndel
If we loaded the dive list from cache and then try to figure out if the remote repository had anything different, we were being super stupid if the SHA was identical... we had already cleared the dive list by the time we decided that we didn't need to load things. Granted, the model was still populated (oops), but the backend data structure was cleared and accesses to it (e.g., when drawing the profile) would cause things to crash. The helper function duplicates some code, but trying to not duplicate the code made things even harder to read. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2015-12-03Prevent gaschange tank icons from using garbage coords.Gravatar K. \"pestophagous\" Heller
Tank icons were shown at incorrect spots on the profile when the DiveEventItem object held a pointer to a struct event even after the struct event at that address had been freed. When internalEvent is a pointer to freed memory, internalEvent->time.seconds could have all kinds of crazy values, which get used in member function DiveEventItem::recalculatePos to place the tank at bad x coordinates. The DiveEventItem(s) no longer store a pointer to memory that they do not own. This way, no matter how the path of execution arrives into slot recalculatePos, we never need fear that the DiveEventItem will dereference a garbage pointer to a struct event. Fixes #968 Signed-off-by: K. Heller <pestophagous@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2015-11-18Location service: instantiate location provider in the desktop UIGravatar Dirk Hohndel
We still aren't doing anything with it, but at least it's there now. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2015-10-30Move all core-functionality to subsurface-coreGravatar Tomaz Canabrava
And adapt a new CMakeLists.txt file for it. On the way I've also found out that we where double-compilling a few files. I've also set the subsurface-core as a include_path but that was just to reduce the noise on this commit, since I plan to remove it from the include path to make it obligatory to specify something like include "subsurface-core/dive.h" for the header files. Since the app is growing quite a bit we ended up having a few different files with almost same name that did similar things, I want to kill that (for instance Dive.h, dive.h, PrintDive.h and such). Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>