Segfault did appear when picture had some gps coordinates but
there was no dive site assigned to the dive.
Signed-off-by: Jan Darowski <jan.darowski@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Seperated getting image timestamp from picture_load_exif_data() and
ShiftImageTimesDialog::syncCameraClicked() into picture_get_timestamp()
and seperated checking timestamp from dive_create_picture() to
dive_check_picture_time().
Signed-off-by: Jan Darowski <jan.darowski@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Sequentially parses a file, expected to be a Datatrak/WLog divelog, and
converts the dive info into Subsurface's dive structure.
As my first DC, back in 90s, was an Aladin Air X, the obvious choice of log
software was DTrak (Win version). After using it for some time we moved to WLog
(shareware software more user friendly than Dtrak, printing capable, and still
better, it runs under wine, which, as linux user, was definitive for me). Then,
some years later, my last Aladin died and I moved to an OSTC, forcing me to
look for a software that support this DC.
I found JDivelog which was capable of import Dtrak logs and used it for some
time until discovered Subsurface existence and devoted to it.
The fact was that importing Dtrak dives in JDivelog and then re-importing them
in Subsurface caused a significant data loss (mainly in the profile events and
alarms) and weird location of some other info in the dive notes (mostly tag
items in the original Dtrak software). This situation can't actually be solved
with tools like divelogs.de which causes similar if no greater data loss.
Although this won't be a core feature for Subsurface, I expect it can be useful
for some other divers as has been for me.
Comments and issues:
Datatrak/Wlog files include a lot of diving data which are not directly
supported in Subsurface, in these cases we choose mostly to use "tags".
The lack of some important info in Datatrak archives (e.g. tank's initial
pressure) forces us to do some arbitrary assumptions (e.g. initial pressure =
200 bar).
There might be archives coming directly from old DOS days, as first versions
of Datatrak run on that OS; they were coded CP437 or CP850, while dive logs
coming from Win versions seems to be coded CP1252. Finally, Wlog seems to use a
mixed confusing style. Program directly converts some of the old encoded chars
to iso8859 but is expected there be some issues with non alphabetic chars, e.g.
"ª".
There are two text fields: "Other activities" and "Dive notes", both limited to
256 char size. We have merged them in Subsurface's "Dive Notes" although the
first one could be "tagged", but we're unsure that the user had filled it in
a tag friendly way.
WLog adds some information to the dive and lets the user to write more than
256 chars notes. This is achieved, while keeping compatibility with DTrak
divelogs, by adding a complementary file named equally as the .log file and
with .add extension where all this info is stored. We have, still, not worked
with this complementary files.
This work is based on the paper referenced in butracker #194 which has some
errors (e.g. beginning of log and beginning of dive are changed) and a lot of
bytes of unknown meaning. Example.log shows, at least, one more byte than those
referred in the paper for the O2 Aladin computer, this could be a byte referred
to the use of SCR but the lack of an OC dive with O2 computer makes impossible
for us to compare.
The only way we have figured out to distinguish a priori between SCR and non
SCR dives with O2 computers is that the dives are tagged with a "rebreather"
tag. Obviously this is not a very trusty way of doing things. In SCR dives,
the O2% in mix means, probably, the maximum O2% in the circuit, not the O2%
of the EAN mix in the tanks, which would be unknown in this case.
The list of DCs related in bug #194 paper seems incomplete, we have added
one or two from WLog and discarded those which are known to exist but whose
model is unknown, grouping them under the imaginative name of "unknown". The
list can easily be increased in the future if we ever know the models
identifiers.
BTW, in Example.log, 0x00 identifier is used for some DC dives and from my own
divelogs is inferred that 0x00 is used for manually entered dives, this could
easily be an error in Example.log coming from a preproduction DC model.
Example.log which is shipped in datatrak package is included in dives
directory for testing pourposes.
[Dirk Hohndel: some small cleanups, merged with latest master, support
divesites, remove the pointless memset() before free() calls
add to cmake build]
Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Upon successfull reading an image file, this computes a SHA1 hash of the
image and saves it with the picture tag in the log file. When a file is
not successfully loaded (for example because the log was created on a
different computer) we look up the hash in a dictionary that maps hashes
to local file names.
That dictionary (actually two for both directions), is loaded on startup
and saved upon destruction of the main window.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
And hook things up when double clicking the globe.
The user experience isn't consistent with what we do on the main tab
(i.e., no coloring of fields that are changed), but it seems to work.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This patch adds tests if the computer is actually a Predator and
if the value is close to what we would have computed anyway.
[Dirk Hohndel: minor change to use same_string() ]
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
If current_dive and displayed_dive still have the same tags then we
shouldn't touch the tags of other selected dives.
Fixes#826
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
For some dive computers (at least the Shearwater Predator, I haven't
checked if there are others), libdivecomputer used to return setpoint
values in each sample even if the dive computer was in OC mode. Those
setpoint values are redundant and confuse our algorithm that tries to
detect if a dive is OC or CCR. So when manually switching from CCR to
OC we make sure that there are no setpoint values in the samples.
This is a destructive change - if the user switches to OC by mistake and
accepts that change, even when switching back to CCR the setpoint changes
during the dive are lost.
I rewrote the code dealing with the events as it was rather confused.
Looping over the events that way didn't make any sense since
get_next_event() is guaranteed to give you the first (if any) event of the
requested name.
See #826
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
When one has 2 pictures with the same timestamp, these pictures are
reordered on saving (requires something changed on the specific dive for
the save to actually trigger). This patch keeps the picture order intact
in the XML log.
Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
No oxygen at all is not quite enough for the average diver but this prevents
inifintie loops/extremely long deco when subsurface is used in pscr mode
with unrealistic values for pscr preferences.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Reported-by: Anton "glance" Lundin <glance@acc.umu.se>
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The ratio between SAC and oxygen metabolism rate can be assumed constant
but not the metabolism rate. So we better base our calculation on the ratio
that uses the SAC from the preferences as that pairs well with the O2
consumption from the preferences.
Hence we ran remove the sac parameter from fill_pressures().
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
When changing to a CCR dive, add a setpoint change to the default setpoint
at the beginning of the dive. Otherwise add an explicit setpoint change to 0
.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Calculations for passive semi-closed rebreathers are pretty much like OC except
the pO2 is lower bey a certain (SAC dependent) factor. This patch introduces the
corresponding calculations in case dctype == PSCR which is so far never set and
there is currently no UI for these calculations. As pO2 is SAC dependent it takes
a certain attempt at getting it and drops to defaults from the prefs otherwise.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
A value of zero (which is the normal legacy one) remains "unknown", but
the divecomputer backend can now give both gasmix and cylinder number
this way.
Currently only the EON Steel backend does that, but it should be easy
enough to extend others too.
Also, fix the user-visible cylinder numbering in the cylinder change
tooltip to use a human-friendlier one-based numbering (ie first cylinder
is "cyl 1", not "cyl 0")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Commit 6cf3787a0e ("Remove code that zeroes out duplicate oxygen sensor
and temperature values") incorrectly removes the code that zeroes out the
temperatures.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This ensures that the list of configured cylinders is consecutive.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
No, this causes double free problems.
And they show up in the weirdest ways, e.g. when just closing your data
file. Or when making changes and re-saving a modified dive.
Fixes#794
This reverts commit 0bdd8f41e0.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
When we load multiple files, we call set_userid multiple times. Then we
need to free the old user id before we set a new.
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The previous taglist_free didn't free the divetag, it only freed the
tag.
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
If for some reason the diluent is pure oxygen, there is a zero
divided by zero error in the partial pressure calculation. This
patch prevents it.
Fixes#774
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
We rely on samples being NULL if a dc have no samples. Its completely
legal for malloc to return a valid pointer to nowhere for zero sized
malloc, which you can't follow and read what its pointing at. Its only
viable to call free() on.
In other code, if samples is a valid pointer, we dereference it and look
at the first sample.
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
We rely on alloc_samples in prepare_sample. If alloc_samples weren't
initialized prepare_sample would wreak havoc on the samples list.
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
If not cylinder with type DILUENT or OXYGEN is defined, this function
returns -1 which should not be used as an index to an array. This
patch adds code to check for this return value and exit gracefully.
On line I marked with a comment. Someone more knowledgeable of that part of
code than me should double check that return is here what we want.
[Dirk Hohndel: fixed small oversight...]
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Fixup_pressure() needs to calculate the cylinder pressures at the
start and at the end of the dive, also for CCR oxygen cylinders.
Since, in the case of CCR, the default cylinder is the diluent,
this is not automatically done for oxygen. This code provides
for fixup_pressure() to be able to do the calculations for oxygen
as well. Another change to fixup_dive() invokes fixup_pressure()
to calculate the values for the oxygen cylinder.
Signed-off-by: willem ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
It seems that in some scenarios we end up with a string that isn't NUL
terminated and that results in garbage being stored as userid. This patch
is a little brute force but it fixes the problem even if a previous
version os Subsurface ended up adding other text to the end of the userid.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Change the meaning that _the_ cylinder (as we treat it in OC dives) is the
diluent cylinder (rather than the O2 cylinder). This eliminates special
cases. Now, for CCR, we have to handle the O2 cylinder in addition
(rather than the diluent in addition).
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Slowly trying to track down all spots where we copy string pointers
instead of string data. And making sure that we free those pointers before
overwriting them.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This patch is bigger than necessary because I also renamed the
get_cylinder_use() function to the much more accurate
get_cylinder_idx_by_use().
If we have no gas changes (except for a possible explicit first gas),
(which in the CCR case also means no bailout), this code will give you
correct per cylinder depth and duration for oxygen and diluent and
therefore create more reasonable gas consumption data for CCR dives.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Oddly we already had code to load this from XML, but nothing else.
This makes the load from XML work like the rest of our code and adds the
save to XML plus the load and save for the git format.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Add a time linear gas interpolation strategy. Some minor changes.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This recognizes recognize some strigns (serial number and firmware
version), and the ones that it doesn't recognize it adds as extra data
using Dirk's new interface.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Calculations for passive semi-closed rebreathers are pretty much like OC
except the pO2 is lower bey a certain (SAC dependent) factor. This patch
introduces the corresponding calculations in case dctype == PSCR which is
so far never set and there is currently no UI for these calculations. As
pO2 is SAC dependent it takes a certain attempt at getting it and drops to
defaults from the prefs otherwise.
As there is no UI at this point and I also don't have any dives, this has
not received much testing, yet, but it compiles. At least.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Currently the gas pressures stored in structures of pressure are
calculated using the gasmix composition of the currently selected
cylinder. But with CCR dives the default cylinder is the oxygen
cylinder (here, index 0). However, the gas pressures need to
be calculated using gasmix data from cylinder 1 (the diluent
cylinder). This patch allows setting the appropriate cylinder
for calculating the values in the structures of pressure. It
also allows for correctly calculating gas pressures for any
open circuit cylinders (e.g. bailout) that a CCR diver may
use. This is performed as follows:
1) In dive.h create an enum variable {oxygen, diluent, bailout}
2) Within the definition of cylinder_t, add a member: cylinder_use_type
This stores an enum variable, one of the above.
3) In file.c where the Poseidon CSV data are read in, assign
the appropriate enum values to each of the cylinders.
4) Within the definition of structure dive, add two members:
int oxygen_cylinder_index
int diluent_cylinder_index
This will keep the indices of the two main CCR cylinders.
5) In dive.c create a function get_cylinder_use(). This scans the
cylinders for that dive, looking for a cylinder that has a
particular cylinder_use_type and returns that cylinder index.
6) In dive.c create a function fixup_cylinder_use() that stores the
indices of the oxygen and diluent cylinders in the variables
dive->oxygen_cylinder_index and dive->diluent_cylinder_index,
making use of the function in 4) above.
7) In profile.c, modify function calculate_gas_information_new()
to use the above functions for CCR dives to find the oxygen and
diluent cylinders and to calculate partail gas pressures based
on the diluent cylinder gas mix.
This results in the correct calculation of gas partial pressures
in the case of CCR dives, displaying the correct partial pressure
graphs in the dive profile widget.
Signed-off-by: willem ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Not quite sure where such a dive would come from, but anyway, just don't
dereference the pointer unless it's non-NULL.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
