Strange crash + Car3D
Willy Gardiol
willy at gardiol.org
Fri Sep 23 16:16:37 UTC 2011
I dont know if it's related or not.
Doing some precision stuff under Qt on ARM i found out that anything
that internally uses qreal is almost unusable on ARM, that is if you
require some more precision than the usual. Because, for speed sake, its
mapped to a "float" instead of a "double". Which works on man cases...
Ezxcept, for example (my experience) take a QPainter and apply a
QTransform with the right (small, very small) parameters
QPainter::drawEllipse(..)
QPainter::drawLine(...)
when dealing with very small increments (example, an ellipse with a
very small radius or a line with two points very close toghether) would
crash straight away my Symbian device. I have devised the usual
workarounds, of course, which involves using double and avoiding Qt
internals. I had at the time also opened a bug report which lead to fix
for at least the lines problem. The issue was inside Qt internal code.
Of course none of these would happen on x86 target.
So, maybe, there is again some more rounding issues also in QML? Have
Qt been compiled to use double or floats for qreal?
Maybe i am wrong and its unrelated, tough.
On Fri, 23 Sep 2011 18:07:46 +0300 (EEST), Lauri Laanmets wrote:
> Hello
>
> I don't think it's in the Java files. I have also been trying to
> start up the Card3D demo. That crashed as well (mainly working
> libandroid-9) - I spend at least 5 hours (huh...) to track down the
> cause. And the finging is so strange and funny. If there is an Item3D
> (and mesh) on screen then, if one would put also a Rectangle on the
> screen, it would still be OK. But giving a radius to the rectangle
> crashes the whole app (log file attached to the letter). So removing
> all radius-es made the Card3D working :)
>
> I have also attached the screen shot (to the letter) of the car which
> seems to be incorrect (notice the white rectangle on left-up, it's OK
> till it has no radius). I have no idea why it's so or who to address
> such issues :)
>
> The following simplified code crashes on Motorola Xoom:
>
> import QtQuick 1.0
> import Qt3D 1.0
> import Qt3D.Shapes 1.0
>
>
> Rectangle{
> id: root
> color: "black"
> width: 1280
> height: 750
>
> Viewport {
> id: view
> anchors.fill: parent
> Item3D{
> anchors.fill: parent
> mesh: Mesh { id: carCoreMesh;source:
> "HyundaiGenesis_sliced_0.2/wheel-left-back.3ds" }
> }
> }
> Rectangle {
> id: root2
>
> width: 180
> height: 30
>
> // This radius makes program crach
> radius: 5
> }
> }
>
> Regards
> Lauri
>
> ----- Original Message -----
> From: "BogDan" <bog_dan_ro at yahoo.com>
> To: "Lauri Laanmets" <lauri.laanmets at proekspert.ee>
> Cc: necessitas-devel at kde.org
> Sent: Thursday, September 22, 2011 5:50:38 PM
> Subject: Re: Strange crash
>
>
>
> Hi,
>
>
>
>
> No is not, it should work on all android devices with api-5. Make
> sure you are using the right java files.
>
>
>
>
>
> BogDan.
>
>
>
>
>
> From: Lauri Laanmets <lauri.laanmets at proekspert.ee>
> To:
> Cc: necessitas-devel at kde.org
> Sent: Thursday, September 22, 2011 11:50 AM
> Subject: Re: Strange crash
>
>
> Hi all
>
> I had my first try on opengl. I have Motorola Xoom and when I try
> "libandroidGL-9" then everything (to an extent) is OK but lower
> numbers (5 and 8) crash.
>
> Is that normal?
>
> Lauri
>
>
> On 21.09.2011 15:39, thomas.senyk at nokia.com wrote:
>
>
> just did git pull
> and now let ./runtests.pl run on my notebook (nexus one) and my
> desktop (galaxy s2)
>
> Let's see :)
>
>
>
>
> From: ext BogDan [ bog_dan_ro at yahoo.com ]
> Sent: Tuesday, September 20, 2011 8:40 PM
> To: Senyk Thomas (Nokia-DXM/Munich)
> Cc: necessitas-devel at kde.org
> Subject: Re: Strange crash
>
>
>
>
> More tests (159) !
>
>
> Cheers,
> BogDan.
>
>
>
>
>
>
>
> From: "thomas.senyk at nokia.com" <thomas.senyk at nokia.com>
> To: bog_dan_ro at yahoo.com
> Cc: necessitas-devel at kde.org
> Sent: Tuesday, September 20, 2011 1:08 PM
> Subject: RE: Strange crash
>
> I got a first run working.
>
> (It's a merge of experimental and experimental-staging (I will not
> push) though!)
>
>
> I crashed/stopped somewhere down the road:
> ...
> timeount in 5 seconds
> timeount in 0 seconds
> ... failed
> Can't run networkselftest stopping tests ...
>
>
> But a lot of testes succeeded!
> Awesome work! :)
>
>
> I won't have much time this week, but I'll take a look at the .xml
> files eventually :)
>
> Greets
> Thomas
>
> ________________________________________
> From: Senyk Thomas (Nokia-DXM/Munich)
> Sent: Monday, September 19, 2011 5:39 PM
> To: BogDan
> Subject: Re: Strange crash
>
> I should check my email more often.
>
> Got it working another way (using /data/local instead) ... but I your
> way is
> the right one :)
>
> Anyway, I just let "auto" run on my galaxy s2 and send you the output
> when
> it's finished
>
> Greets
> Thomas
>
> On Monday, September 19, 2011 08:22:03 AM ext BogDan wrote:
>> Done
>>
>> http://commits.kde.org/android-qt/a6359a892aeb01062a73ca3a691a881e9462306a
>> BogDan.
>>
>> >________________________________
>> >From: Thomas Senyk < thomas.senyk at nokia.com >
>> >To: BogDan < bog_dan_ro at yahoo.com >
>> >Sent: Monday, September 19, 2011 4:49 PM
>> >Subject: Re: Strange crash
>> >
>> >Are you using a rooted-device?
>> >
>> >I took closer (the first real) look and quickly found:
>> >failed to copy '/tmp/96J7e6B73C/libtst_qdebug.so' to
>> >'/data/data/org.kde.necessitas.quadruplor/files/libtst_qdebug.so':
>> >Permission denied
>> >
>> >
>> >... later he can't start/load anything.
>> >But he still says "Success" :)
>> >
>> >
>> >Greets
>> >Thomas
>> >
>> >On Friday, September 16, 2011 07:33:17 AM ext BogDan wrote:
>> >> If you add that code it should work ok.
>> >>
>> >>
>> >>
>> >> ----- Original Message -----
>> >>
>> >> > From: Thomas Senyk < thomas.senyk at nokia.com >
>> >> > To: BogDan < bog_dan_ro at yahoo.com >
>> >> > Cc:
>> >> > Sent: Friday, September 16, 2011 4:46 PM
>> >> > Subject: Re: Strange crash
>> >> >
>> >> >T he pull of the output is still not working, right?
>> >> >
>> >> > On Friday, September 16, 2011 06:27:38 AM ext BogDan wrote:
>> >> >> Now you should be able to gui tests (please pull latest
>> >> >>experimental
>> >> >> and recompile it !!!). Also you must add another line to
>> >> >>runtest.pl
>> >> >> add: "waitForProcess($packageName,1,10);" between
>> >> >>
>> >> >> system("$adb_tool $device_serial shell am start -n
>> >> >>$intentName");
>> >> >>
>> >> > # create
>> >> >
>> >> >> application folders waitForProcess($packageName,0,20);
>> >> >>
>> >> >> so it will become:
>> >> >>
>> >> >> ########### build & install quadruplor ###########
>> >> >> pushd($quadruplor_dir);
>> >> >> system("$android_sdk_dir/tools/android update project -p . -t
>> >> >> android-10")==0 or die "Can't update project ...\n";
>> >> >>
>> >> > system("$ant_tool
>> >> >
>> >> >> uninstall install")==0 or die "Can't install
>> >> >>
>> >> > Quadruplor\n";
>> >> >
>> >> >> system("$adb_tool $device_serial shell am start -n
>> >> >>$intentName");
>> >> >>
>> >> > # create
>> >> >
>> >> >> application folders waitForProcess($packageName,1,10);
>> >> >> waitForProcess($packageName,0,20);
>> >> >> popd();
>> >> >>
>> >> >>
>> >> >> P.S. I can push the fix now because I'm at work :)
>> >> >>
>> >> >>
>> >> >> Cheers,
>> >> >> BogDan.
>> >> >>
>> >> >>
>> >> >>
>> >> >> ----- Original Message -----
>> >> >>
>> >> >> > From: Thomas Senyk < thomas.senyk at nokia.com >
>> >> >> > To: BogDan < bog_dan_ro at yahoo.com >
>> >> >> > Cc:
>> >> >> > Sent: Friday, September 16, 2011 4:22 PM
>> >> >> > Subject: Re: Strange crash
>> >> >> >
>> >> >> > same here ... although runtests is not though yet :)
>> >> >> >
>> >> >> > On Thursday, September 15, 2011 08:31:25 AM ext BogDan
>> wrote:
>> >> >> >> I tested yesterday qt tests with it and at least qtcore is
>> >> >>ok
>> >> >> >>:)
>> >> >>
>> >> > !
>> >> >
>> >> >> >>
>> >> >> >> Cheers,
>> >> >> >> BogDan.
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >> ----- Original Message -----
>> >> >> >>
>> >> >> >> > From: Thomas Senyk < thomas.senyk at nokia.com >
>> >> >> >> > To: BogDan < bog_dan_ro at yahoo.com >
>> >> >> >> > Cc:
>> >> >> >> > Sent: Thursday, September 15, 2011 6:18 PM
>> >> >> >> > Subject: Re: Strange crash
>> >> >> >> >
>> >> >> >> > Ah you did a fresh merge, right? cool! :)
>> >> >> >> >
>> >> >> >> > I'm going to do a armabi-v7a build and test it on nexus
>> >> >>
>> >> > one,
>> >> >
>> >> >> > galaxy tab
>> >> >> >
>> >> >> >> > and galaxy s2
>> >> >> >> >
>> >> >> >> > On Thursday, September 15, 2011 08:08:38 AM ext BogDan
>> >> >>
>> >> > wrote:
>> >> >> >> >> Done !
>> >> >> >> >> I had to delete/create it.
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >> BogDan.
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >> ----- Original Message -----
>> >> >> >> >>
>> >> >> >> >> > From: Thomas Senyk < thomas.senyk at nokia.com >
>> >> >> >> >> > To: BogDan < bog_dan_ro at yahoo.com >
>> >> >> >> >> > Cc:
>> >> >> >> >> > Sent: Thursday, September 15, 2011 5:57 PM
>> >> >> >> >> > Subject: Re: Strange crash
>> >> >> >> >> >
>> >> >> >> >> > But we want to track Qt4.8 :)
>> >> >> >> >> >
>> >> >> >> >> > We should stay as close as possible -> do a
>> >> >>
>> >> > merge from
>> >> >
>> >> >> > 4.8 as
>> >> >> >
>> >> >> >> >> > often
>> >> >> >> >>
>> >> >> >> > as
>> >> >> >> >
>> >> >> >> >> > someone
>> >> >> >> >> > finds the time to do it :)
>> >> >> >> >> >
>> >> >> >> >> > Just reset head by ... one? ... and merge to
>> >> >>
>> >> > experimantal
>> >> >
>> >> >> > ..
>> >> >> >
>> >> >> >> >> > right?>> >
>> >> >> >> >> > On Thursday, September 15, 2011 07:55:21 AM ext
>> >> >>
>> >> > BogDan
>> >> >
>> >> >> > wrote:
>> >> >> >> >> >> Is not fixing anything :)
>> >> >> >> >> >>
>> >> >> >> >> >>
>> >> >> >> >> >>
>> >> >> >> >> >> ----- Original Message -----
>> >> >> >> >> >>
>> >> >> >> >> >> > From: Thomas Senyk
>> >> >>
>> >> > < thomas.senyk at nokia.com >
>> >> >
>> >> >> >> >> >> > To: BogDan < bog_dan_ro at yahoo.com >
>> >> >> >> >> >> > Cc: " necessitas-devel at kde.org "
>> >> >> >> >> >>
>> >> >> >> >> > < necessitas-devel at kde.org >
>> >> >> >> >> >
>> >> >> >> >> >> > Sent: Thursday, September 15, 2011 5:53
>> >> >>
>> >> > PM
>> >> >
>> >> >> >> >> >> > Subject: Re: Strange crash
>> >> >> >> >> >> >
>> >> >> >> >> >> > remotes/origin/experimental-staging
>> >> >> >> >> >> >
>> >> >> >> >> >> > On Thursday, September 15, 2011 07:34:57
>> >> >>
>> >> > AM ext
>> >> >
>> >> >> > BogDan
>> >> >> >
>> >> >> >> > wrote:
>> >> >> >> >> >> >> > First off all: Yes I have to
>> >> >>
>> >> > do more
>> >> >
>> >> >> >> >>
>> >> >> >> > debugging/investigation
>> >> >> >> >
>> >> >> >> >> > to
>> >> >> >> >> >
>> >> >> >> >> >> > resolve
>> >> >> >> >> >> >
>> >> >> >> >> >> >> > the problem
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> > But on the other side: This is
>
>
>
>
> _______________________________________________
> Necessitas-devel mailing list Necessitas-devel at kde.org
> https://mail.kde.org/mailman/listinfo/necessitas-devel
>
> _______________________________________________
> Necessitas-devel mailing list
> Necessitas-devel at kde.org
> https://mail.kde.org/mailman/listinfo/necessitas-devel
--
Willy Gardiol
willy at gardiol.org
www.gardiol.org
www.trackaway.org -> Track YOUR way the way you want!
More information about the Necessitas-devel
mailing list