It seems the translation tools don't like the ?: in the argument - can't
blame them. So use an explicit if clause instead.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
I don't like that the event structure includes the variable length array.
That really makes it a pain to change the name of an event (on the flip
side, freeing events is easier I guess).
Anyway, to correctly rename an event we need to actually remove the event
from the correct dc and then add a new event with the new name. The
previous code was insane (it only worked if the new name was of smaller or
equal length, otherwise it had a beautiful buffer overflow).
And of course we need to do this both for the current_dive and the
displayed_dive.
Fixes#616
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This used to work because we actually displayed the current_dive. Now with
displayed_dive the pointers are of course different! So we need to compare
the actual events instead.
See #616
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Signed vs unsigned comparisons are such a pain. Since we want offsets to
be +/- 30 minutes around the dive we need to allow negative offsets - but
duration_t was defined as uint32_t.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
We carefully copied the dive computers and their samples and events, but
only for the second and later DCs. For the first DC we simply copied the
pointers but not what they were pointing at. So when the copied dive was
freed, those pointers in the original went to freed memory.
Not good.
Fixes#599
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This is kind of the inverse to copy_dive(). Instead of duplicating all the
data that the dive points to, it moves it to a new struct dive and zeroes
out the old one so there are no two sets of pointers to these data.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This way we can safely copy around dives (specifically, copy the dive to
be displayed / edited into the displayed_dive).
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
There is massive confusion about what we display when and where and which
dive structure (or pointer to a dive structure) contains which information
at which stage. This is the first step towards restructuring all of this.
This creates a global variable displayed_dive which at any point in time
should be what is displayed on screen (both in the profile and in the
maintab). It removes the editedDive concept from MainTab.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
If the picture has a timestamp that was within 30 minutes of the start and
finish of the dive, we take it. Otherwise we don't.
If the timestamps of the images are off, the time shift dialog allows the
user to fix this.
And with this patch the user can select all the dives of a trip and all
the pictures they took on the trip and the "right thing" will happen.
Fixes#578
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This can't be the only dive computer, of course. Goes nicely with the
ability to reprder them.
Fixes#551
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Also change the on file XML to be even easier to read by making it a
duration as well (which gets us '32:34 min' instead of un-typed seconds).
This is backwards compatible, it will happily read what was written with
the previous commit).
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Use script ell instead of 'l' for liters to avoid confusion with digit 1.
Let's hope that this glyph is available in the common fonts, otherwise
we'll have to revert it.
[Dirk Hohndel: split commit into two]
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
It makes no sense to store a 64bit time stamp with every picture. Even the
32bit offset (in seconds) from the dive start is WAY overkill. But
switching to that makes the code much more simple in a number of spots.
And makes what is saved to the XML file easier to read, too.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
It confuses us elsewhere (the model suddenly doesn't match the list of
pictures as the model doesn't reflect the duplicate pictures).
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This was only semi-implemented the first time around. Now we really only
copy the ones that are indeed used.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
1) All the variables in the sample structures are strongly typed
2) Two additional types were declared in units.h:
o2pressure_t
bearing_t
3) The following variables were added:
diluentpressure
o2setpoint
o2sensor[3]
4) Changes to a number of files were made to chanf
sample->po2 to sample->po2.mbar
bearing to bearring.degrees
Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The picture list is a single linked list where the pictures have a node to
their next element. When adding the same picture to two dives, things got
way way wrong and crashes were appearing.
This will replicate the information (filename, latitude and longitude) for
each dive that has the picture, BUT it still tries to save as much as
possible on the actual pixmap.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit breaks the loading of images that were done in the divelist
into smaller bits. A bit of code refactor was done in order to correct the
placement of a few methods.
ShiftTimesDialog::EpochFromExiv got moved to Exif::epoch dive_add_picture
is now used instead of add_event picture_load_exif_data got implemented
using the old listview code. dive_set_geodata_from_picture got
implemented using the old listview code.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Add the FOR_EACH_PICTURE macro and the code for picture count.
This uses C99 - but I will keep it like this and wait for dirk
to scream at me.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Instead calculate this information on the fly, taking into account all
dive computers on the dive in questions.
There is one wrinkle to this - previously we abused the '.used' member to
make sure that a manually added cylinder didn't disappear the moment it
was added (think of the workflow: you add a cylinder, then you add a gas
change to that cylinder -> right after you add it it is unused and would
not be shown).
I am thinking that we might have to add the "manually_added" property to
the properties that we store in XML / git.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
We should never pass permille values around as integers. And we shouldn't
have to decode the stupid value in more than one place.
This doesn't tackle all the places where we access O2 and He "too early"
and should instead keep passing around a gaxmix. But it's a first step.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
When planning a dive, the dive could use more gas than is in the cylinder.
So getting a negative end pressure is a useful indication to the user that
there plan might not be a good one.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The logic of removing the event was in the UI, and this makes
the code harder to test because we need to take into account
also the events that the interface is receiving, instead of
only relying on the algorithm to test.
so, now it lives in dive.h/.c and a unittest is easyer to make.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
When we merge two dives into the same dive because a divecomputer had
incorrectly considered it two separate dives (due to surface time within
the dive) we should pick the dive ID from the later dive to be the
diveid of the resulting merged dive. Otherwise we might re-download the
(now merged) partial dive.
This is a rather unusual special case, but it actually hit me with the
Uemis on my last dive in Palau: Chandelier Cave has multiple surface
points where you can spend time admiring the cave above water, and the
Uemis (but not my Suunto's) decided that the dive was actually four
short dives back-to-back.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
[Dirk Hohndel: this overlapped with my commit 09e7c61fee ("Consistently
use for_each_dive (and use it correctly)") so I took the
pieces that I had missed]
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
If a dive has multiple dive computers we enable a special context menu
when the user right-clicks on the dive computer name AND is not already
showing the first dive computer. In that case we offer to make the
currently shown dive computer the first one.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Previously we only did this when we did fixup_dive(), but that way we
can't reference dives "early" in their life cycle (e.g., right after they
got downloaded).
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
When merging dives, if we know for sure that the dive computers are
different, don't merge them into one (by interleaving the data), but
instead keep both as separate dive computers in the same dive.
This fixes a bug when due to a faulty download the same dive from two dive
computers looks quite different. They don't get merged automatically
(which is fine - they are quite different), but when manually merging
them, we of course want one dive with two dive computers, not one dive
with one merged dive computer.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
C specs says that we can safelly free a NULL pointer, so there's no reason
to check if it's null before freeing it.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
I'll probably add prefixes to functions to make it easier to find method
via autocomplete from the grep or interface helpers, do you wanna know all
the functions that works with a dive? ask for the completion for dive_,
do you wanna know all the functions that works with a divelist? ask for
the completions on divelist_ or run grep -rIs divelist_ on the header
files.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This is a preferences setting, it should belong to the preferences
structure.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This patch adds the current dive time and the adjusted time to the time
shift window. I added a function to dive.c to get the timestamp of the
first selected dive.
This will view the time of the first selected dive only even when multi
dives are selected but it does change the times for multiple dives
properly.
Signed-off-by: Gehad elrobey <gehadelrobey@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
So this is totally unrelated to the git repository format, except for
the fact that I noticed it while writing the git saving code.
The subsurface divetag list handling is being stupid, and has a
initial dummy entry at the head of the list for no good reason.
I say "no good reason", because there *is* a reason for it: it allows
code to avoid the special case of empty list and adding entries to
before the first entry etc etc. But that reason is a really *bad*
reason, because it's valid only because people don't understand basic
list manipulation and pointers to pointers.
So get rid of the dummy element, and do things right instead - by
passing a *pointer* to the list, instead of the list. And then when
traversing the list and looking for a place to insert things, don't go
to the next entry - just update the "pointer to pointer" to point to
the address of the next entry. Each entry in a C linked list is no
different than the list itself, so you can use the pointer to the
pointer to the next entry as a pointer to the list.
This is a pet peeve of mine. The real beauty of pointers can never be
understood unless you understand the indirection they allow. People
who grew up with Pascal and were corrupted by that mindset are
mentally stunted. Niklaus Wirth has a lot to answer for!
But never fear. You too can overcome that mental limitation, it just
needs some brain exercise. Reading this patch may help. In particular,
contemplate the new "taglist_add_divetag()".
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This saves the dive data into a git object repository instead of a
single XML file.
We create a git object tree with each dive as a separate file,
hierarchically by trip and date.
NOTE 1: This largely duplicates the XML saving code, because trying to
share it seemed just too painful: the logic is very similar, but the
details of the actual strings end up differing sufficiently that there
are tons of trivial differences.
The git save format is line-based with minimal quoting, while XML quotes
everything with either "<..\>" or using single quotes around attributes.
NOTE 2: You currently need a dummy "file" to save to, which points to
the real save location: the git repository and branch to be used. We
should make this a config thing, but for testing, do something like
this:
echo git /home/torvalds/scuba:linus > git-test
to create that git information file, and when you use "Save To" and
specify "git-test" as the file to save to, subsurface will use the new
git save logic to save to the branch "linus" in the repository found at
"/home/torvalds/scuba".
NOTE 3: The git save format uses just the git object directory, it does
*not* check out the result in any git working tree or index. So after
you do a save, you can do
git log -p linus
to see what actually happened in that branch, but it will not affect any
actual checked-out state in the repository.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
clang-format doesn't appear to reindent multi line #define statements
correctly - so this hopefully will clean those up.
The included whitespace corrections to the code should stay in place when
using the updated tool.
This includes cleaning up some multi-line comments that were messed up the
last time around as well as a few other minor changes.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Minor change to the perl postprocessing script and resulting changes to
the affected source files.
This deals with two issues:
- "foreach"-like structures were not always treated correctly
- some longer calculations that ended on "+ constant" were reformatted in
a rather unatractive manner
In one source file (divelist.c) I ended up adding braces to the sources...
trying to cascade the indentation further down without having the block
there seemed a lot more trouble than it's worth.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The get_depth_units function was expecting an unsigned int as a first parameter.
When it received a negative integer, the function made a cast to an unsigned int,
resulting in a very big number.
Signed-off-by: Nicu Badescu <badescunicu@yahoo.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
I know everyone will hate it.
Go ahead. Complain. Call me names.
At least now things are consistent and reproducible.
If you want changes, have your complaint come with a patch to
scripts/whitespace.pl so that we can automate it.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
In commit 23baf20f56 (Use "rint()" instead of rounding manually with
"+ 0.5") I had missed this one remaining place where we rounded things
by adding "+0.5" and then truncated.
Fix that up.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
rint() is "round to nearest integer", and does a better job than +0.5
(followed by the implicit truncation inherent in integer casting). We
already used 'rint()' for values that could be negative (where +0.5 is
actively wrong), let's just make it consistent.
Of course, as is usual for the messy C math functions, it depends on the
current rounding mode. But the default round-to-nearest is what we want
and use, and the functions that explicitly always round to nearest
aren't standard enough to worry about.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Earlier we converted the C++ code to using true/false, and this converts
the C code to using the same style.
We already depended on stdbool.h in subsurfacestartup.[ch], and we build
with -std=gnu99 so nobody could build subsurface without a c99 compiler.
[Dirk Hohndel: small change suggested by Thiago Macieira: don't include
stdbool.h for C++]
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Some dive computers will always download all tanks that they store, not
just the ones used in a dive. Most people only want to see the tanks that
they actually used during the dive (and for the others there's an option
to go back to the old behavior, just in case).
All this is only in memory / during runtime. If the dive computer provided
the extra data we will not throw it away.
Fixes#373
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
When the user asks to merge dives in the divelist, we would always use
the "try tp find matching dive computers and merge at an offset" model.
That is incorrect if the intent is to actually merge two *identical*
dives (with different dive computers), as opposed to merging two short
dives into one longer one with a surface interval.
Normally this doesn't ever trigger (the "same dive" merging will have
been done automatically after downloading from the dive computer), but
if the dive computer times are off, and the user fixes them, and then
asks to merge dives, we should use the non-offset dive merging logic.
We already have that "likely_same_dive()" function that is used to
determine when downloaded dives get merged, so just use it for the user
merge case too.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This id is just held in memory. It's not supposed to be used for anything
but having a unique handle that represents a dive. Whenever you need to
remember a dive across an operation that might change the dive_table, this
is what you should hold on to, not a dive number, a dive pointer, or
anything like that.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
None of these are actual bugs. But none of the fixes are harmful, either.
And much as I hate adding the 'default' clauses, I'd rather not have the
build output cluttered by invalid warnings.
The exception is the fix in divelistview.cpp - while I don't think it is
possible for this function to be called with no dive selected,
initializing pd to NULL is cheap insurance in case that does happen for
some weird reason.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Use get_cylinder_index that handles SAMPLE_EVENT_GASCHANGE and
SAMPLE_EVENT_GASCHANGE2.
This also removes the need for a special case where get_gasidx returns
-1, because get_cylinder_index always returns the "closest" gas that it
finds.
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
In an inconsistant XML file (like our own dives/test20.xml) it is possible
that a gas change event refers to a non-existing gas. In that case
get_gasidx returns -1 - which we shouldn't use as index into the arrays.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This is a bit painful, but we basically walk the samples and pick the
valid tank from the events. And then we do a simple discrete integration
to figure out the mean depth per tank and duration per tank. And then we
assemble all that into per tank statistics.
Strangely the value calculated here seems slightly higher than one would
expect from the overall SAC rate. This inconsistency should be
investigated a bit further, but my guess it it's based on the assumption
that the DC provided mean depth is possibly more accurate than what we can
calculate from the profile.
Fixes#284
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
We translate only tags we know since possible
translations of custom tags (provided by the user)
may be out of context and therefore wrong.
Signed-off-by: Maximilian Güntner <maximilian.guentner@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This patch adds the possibility to shift the times of all selected dives
by a fixed amount to correct for time zone problems or mis-set dive
computer clocks.
Select the dives and right click in the dive list.
[Dirk Hohndel: added .ui file to FORMS and fixed some whitespace damage]
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This patch removes a duplicated method: get_divenr and
get_index_for_dive. The two are exactly the same ( if my
c is not broken, but I may be broken since I'm working like
crazy for almost 30h nonstop. ), so please take a good look
before applying this one.
[Dirk Hohndel: Tomaz took the slightly broken of the two implementations,
so I switched that out for the correct one]
Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
We need to make sure that the correct segment has the correct gas assigned
to it - and that those gases are correctly tracked when editing a manually
added dive as well.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The new implementation supports custom tags
which are provided by the user as well as
default tags which are provided by subsurface.
Default tags can be translated and will be written
to XML in their non-localized form.
Signed-off-by: Maximilian Güntner <maximilian.guentner@gmail.com>
The dive planner always showed the depth in our internal units, ie
millimeter, in the sidebar that showed the plan points.
That made little sense in metric mode, and none at all in imperial. The
_graph_ showed things in meter and feet.
So make the DivePlannerPointsModel always convert things to and from the
user units.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This may seem like a really odd change - but with this change the Qt tools
can correctly parse the C files (and qt-gui.cpp) and get the context for
the translatable strings right.
It's not super-pretty (I'll admit that _("string literal") is much easier
on the eye than translate("gettextFromC", "string literal") ) but I think
this will be the price of success.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
- remove the build flags and libraries from the Makefile / Configure.mk
- remove the glib types (gboolean, gchar, gint64, gint)
- comment out / hack around gettext
- replace the glib file helper functions
- replace g_ascii_strtod
- replace g_build_filename
- use environment variables instead of g_get_home_dir() & g_get_user_name()
- comment out GPS string parsing (uses glib utf8 macros)
This needs massive cleanup, but it's a snapshot of what I have right now, in
case people want to look at it.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Some people (free divers) are loving ft/s or m/s units for vertical speeds.
Now they can choose between /min or /s in the configuration (only Qt UI).
Signed-off-by: Patrick Valsecchi <patrick@thus.ch>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This gets things mostly right.
It creates a dive and uses the planner widget to create samples which are
copied into the dive. It fills in some reasonable defaults (DC model,
timestamp), but doesn't allow editing the timestamp (or the temperatures
and air pressure).
On accept the planner gets reset and the dive appears correctly in the
dive list.
Cancel still needs to be handled.
And I bet there are many subtle bugs lurking here and there. But it's a
start.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
11 is SAMPLE_EVENT_GASCHANGE, and thats the one that doesn't contain any
He-part. The type where He and O2 is packed togeather is 25,
SAMPLE_EVENT_GASCHANGE2.
Left to implement is to figure out the type of the event when we read
the xml, so we can create the right type there.
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
.. otherwise the dive tags generally end up cleared when you download a
duplicate dive from another dive computer.
This uses MERGE_NONZERO, which means that if one of the dives has tags
set, we'll prefer those tags. If both dives have tags set, we take the
tags from the first ("preferred") dive.
We could do a "just or all the bits together" too. But this way we at
least take a set of tags that are consistent (ie we don't get both
"boat" and "shore" set unless one of the original dives already had that
inconsistency)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This is a fun one.
We only want to mark the divelist changed if the user actually changed
something. So we try really hard to compare what was entered with what was
there and only if it is different do we overwrite existing values and
record this as a change to the divelist.
An additional challenge here is the fact that the user needs to enter a
working pressure before they can enter a size (when in cuft mode). That is
not really intuitive. We work around this by assuming working pressure is
3000psi if a size is given in cuft - but then if the user changes the
working pressure, that changes the volume. Now going back and changing the
volume again does the trick. Or enter the working pressure FIRST and then
the volume...
This also changes the incorrect MAXPRESSURE to WORKINGPRESSURE and uses
the text WorkPress in English (Gtk code used MaxPress which was simply
wrong - this is just the design pressure or working pressure, not some
hard maximum. In fact, people quite commonly "overfill" these tanks.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The events that had same time stamp were reversed in order on every new
load of the log file. This patch will keep the order static. (Changing
order is annoying when using version control to store the logs.)
Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
They do the "02=0 means air" thing autmatically, and make for less
typing. So use them more widely in places that looked up the o2 and he
permille values of a gasmix.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
.. so that different computers that have different ordering of the same
cylinders will see the end result the same way.
This also fixes up the sample sensor index and generates special initial
tank change events for the dive computers that had their cylinder
indexes renamed on them.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Create a little widget that lists all the gases / tanks we know about and
allow the user to pick one of them.
Turns out that add_event only added events at the end of the list - but we
treat that list as chronologically sorted. So I fixed that little
mis-feature as well.
This does raise the question whether we need the inverse operation
(removing a gas change). And if there are other things that we should be
able to manually edit, now that we have the infrastructure for this neat
little context menu...
See #60 -- this doesn't address all of the issues mentioned there, but at
least deals with the 'headline' of the feature request...
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
merge_text() could call strdup(NULL) if one pointer was "" and the other
NULL. This commit fixes that.
Reported-by: fhuberts
Analyzed-by: Lubomir I. Ivanov <neolit123@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
A couple of these could clearly cause a crash just like the one fixed by
commit 00865f5a1e1a ("equipment.c: Fix potential buffer overflow in
size_data_funct()").
One would append user input to fixed length buffer without checking.
We were hardcoding the (correct) max path length in macos.c - replaced by
the actual OS constant.
But the vast majority are just extremely generous guesses how long
localized strings could possibly be.
Yes, this commit is likely leaning towards overkill. But we have now been
bitten by buffer overflow crashes twice that were caused by localization,
so I tried to go through all of the code and identify every possible
buffer that could be affected by this.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This fixes two bugs:
- we overwrote the max depth that we read from an XML file with 0 if there
are no samples
- we didn't parse the DepthAvg tag in the DivingLog XML
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This creates a helper function called "gas_volume()" that takes the
cylinder and a particular pressure, and returns the estimated volume of
the gas at surface pressure, including proper approximation of the
incompressibility of gas.
It very much is an approximation, but it's closer to reality than
assuming a pure ideal gas. See for example compressibility at
http://en.wikipedia.org/wiki/Compressibility_factor
Suggested-by: Jukka Lind <jukka.lind@iki.fi>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The code was written to get the SAC rate correct, but we probably do
want to have the duration and mean depth of the dive always be shown for
the non-surface-time.
So move the code from the sac-rate calculation to the generic dive fixup
part. This makes the dive list and statistics all show the duration as
the under-water duration, which is not necessarily the same as
"difference between beginning and end of dive".
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
We computed a made-up average depth based on the maximum depth, and used
that. That's questionable even if we didn't have any explicit average
depth to begin with, but it's particularly wrong if we did have an
explicit average depth to use.
Now, admittedly we have no way to actually create fake dives like this
with a particular average depth, so this really doesn't make any
difference in real life. But we should do this right.
Also, make the XML be in the format that subsurface actually saves
things in (mainly things like cylinder sizes having an extra decimal
place, but also ordering of XML elements).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
We even documented that we did SAC in bar*l/min, but the "S" in SAC
stands for "Surface". So we should normalize SAC rate to surface
pressure, not one bar.
It's a tiny 1% difference, and doesn't actually matter in practice, but
it's noticeable when you want to explicitly test for SAC-rate by
creating a test-dive that averages exactly 10m. Suddenly you don't get
the round numbers you expect.
[ Side note: 10m is not _exactly_ one extra atmosphere according to our
calculations, but it's darn close in sea water: the standard salinity
of 1.03 kg/l together with the standard acceleration of 9.81m/s^2
gives an additional pressure of 1.01 bar, which is within a fraction
of a percent of one ATM.
Of course, divers have likely chosen that value exactly for the math
to come out that way, since the true average salinity of seawater is
actually slightly lower ]
So here's a few test-dives, along with the SAC rate fixup to make them
look right.
(There's also a one-liner to dive.c that makes the duration come out
right if the last sample has a non-zero depth, and the previous sample
did not: one of my original test-dives did the "average 10m depth" by
starting at 0 and ending at 20m, and dive.c got a tiny bit confused
about that ;)
[ The rationale for me testing our SAC rate calculations in the first
place was that on snorkkeli.net user "Poltsi" reported that our SAC rate
calculations differ from the ones that Suunto DM4 reports. So I wanted
to verify that we did things right.
Note that Poltsi reported differences larger than the difference of
BAR/ATM, so this is not the cause. I'll continue to look at this. ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
We have this oddity in "fixup_dive()" that we fix up the dive water
temperates and durations by looking over all the dive computer data.
But we actually call that *before* we've fixed-up the dive computer data.
So the water temperature is there in the samples, but hasn't made it to
the generic dive computer water temperature yet, so then it doesn't make
it into the dive structure either.
Until the *second* time, when we have load the (partially fixed-up) data.
Acked-by: Henrik Brautaset Aronsen <subsurface@henrik.synth.no>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Downloading dives from the dive computer attempts to merge same dives,
e.g. when multiple dive computers are used. If the mean depth is zero when
downloading from DC this comparison fails resulting in not merging the
multiple dive computers used on one dive. This patch skips the mean depth
comparison when this information is not available.
Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
