17 Aug
2012
17 Aug
'12
6:05 p.m.
If I understand correctly, kpdf uses xpdf as a base rendering engine. The xpdf code in the
Trinity source tree uses 3.02 from February 2007, which has been patched for security
reasons several times since then.
There also is a patch to improve a scrolling speed bug that is caused by more recent gcc
versions.
The most recent version of xpdf is 3.03.
Many distros have these patches applied or use 3.03.
* Does compiling kpdf use an existing installed xpdf from the distro or does the build
process only use the xpdf code that is in the kpdf source tree?
* If the latter, then should we be patching the Trinity version of xpdf? Or updating to
the latest release of xpdf?
* If the latter, what is needed to change the build process to use an existing installed
xpdf rather than the stale version in the Trinity sources?
Darrell
17 Aug
17 Aug
7:46 p.m.
New subject: [trinity-devel] kpdf/xpdf
On 08/17/2012 01:05 PM, Darrell Anderson wrote:
* Does compiling kpdf use an existing installed xpdf
from the distro or does
the build process only use the xpdf code that is in the kpdf source tree?
* If the latter, then should we be patching the Trinity version of xpdf? Or
updating to the latest release of xpdf?
* If the latter, what is needed to change the build process to use an
existing installed xpdf rather than the stale version in the Trinity
sources?
Darrell
It's definitely building xpdf from the GIT tree. We need to apply all patches or
pull the latest xpdf code. Note the numerous deprecation warnings associated
with xpdf as well:
[ 32%] Built target kooka
make -f kpdf/xpdf/goo/CMakeFiles/goo-static.dir/build.make
kpdf/xpdf/goo/CMakeFiles/goo-static.dir/depend
make[2]: Entering directory `/build/src/build'
cd /build/src/build && /usr/bin/cmake -E cmake_depends "Unix Makefiles"
/build/src/tdegraphics /build/src/tdegraphics/kpdf/xpdf/goo /build/src/build
/build/src/build/kpdf/xpdf/goo
/build/src/build/kpdf/xpdf/goo/CMakeFiles/goo-static.dir/DependInfo.cmake --color=
<snip>
[ 32%] Building CXX object kpdf/xpdf/fofi/CMakeFiles/fofi-static.dir/FoFiBase.cc.o
cd /build/src/build/kpdf/xpdf/fofi && /usr/bin/c++ -DHAVE_CONFIG_H
-fpermissive -DQT_NO_ASCII_CAST -DQT_CLEAN_NAMESPACE -DQT_NO_STL -DQT_NO_COMPAT
-DQT_NO_TRANSLATION -DQT_THREAD_SUPPORT -D_REENTRANT -include tqt.h
-I/build/src/tdegraphics/kpdf/xpdf/fofi/..
-I/build/src/tdegraphics/kpdf/xpdf/fofi/../goo -I/build/src/build
-I/opt/qt3/include -I/usr/include/tqt -fPIC -o
CMakeFiles/fofi-static.dir/FoFiBase.cc.o -c
/build/src/tdegraphics/kpdf/xpdf/fofi/FoFiBase.cc
/usr/bin/cmake -E cmake_progress_report /build/src/build/CMakeFiles
[ 32%] Building CXX object
kpdf/xpdf/fofi/CMakeFiles/fofi-static.dir/FoFiEncodings.cc.o
cd /build/src/build/kpdf/xpdf/fofi && /usr/bin/c++ -DHAVE_CONFIG_H
-fpermissive -DQT_NO_ASCII_CAST -DQT_CLEAN_NAMESPACE -DQT_NO_STL -DQT_NO_COMPAT
-DQT_NO_TRANSLATION -DQT_THREAD_SUPPORT -D_REENTRANT -include tqt.h
-I/build/src/tdegraphics/kpdf/xpdf/fofi/..
-I/build/src/tdegraphics/kpdf/xpdf/fofi/../goo -I/build/src/build
-I/opt/qt3/include -I/usr/include/tqt -fPIC -o
CMakeFiles/fofi-static.dir/FoFiEncodings.cc.o -c
/build/src/tdegraphics/kpdf/xpdf/fofi/FoFiEncodings.cc
/build/src/tdegraphics/kpdf/xpdf/fofi/FoFiEncodings.cc:279:1: warning:
deprecated conversion from string constant to 'char*' [-Wwrite-strings]
<snip more deprecation warning>
The CMake files could probably be changed to use xpdf libraries instead of the
statically built xpdf libraries from the GIT tree. Well above my coding grade...
--
David C. Rankin, J.D.,P.E.
8:19 p.m.
New subject: [trinity-devel] kpdf/xpdf
It's definitely building xpdf from the GIT tree.
We need to
apply all patches or pull the latest xpdf code. Note the numerous deprecation
warnings associated with xpdf as well:
The primary issue then would seem to be that the internal Trinity xpdf is not being
updated with security patches.
The CMake files could probably be changed to use xpdf
libraries instead of the statically built xpdf libraries from the GIT tree. Well
above my coding grade.
Likewise.
I'll write Yet Another Bug Report. Or two.
Darrell
8:21 p.m.
New subject: [trinity-devel] kpdf/xpdf
It's
definitely building xpdf from the GIT tree. We need to
apply all patches or pull the latest xpdf code. Note the numerous
deprecation
warnings associated with xpdf as well:
The primary issue then would seem to be that the internal Trinity xpdf is
not being updated with security patches.
8:29 p.m.
New subject: [trinity-devel] kpdf/xpdf
The primary
issue then would seem to be that the internal Trinity xpdf is
not being updated with security patches.
I don't know why we need a copy of xpdf to be honest.
This needs to be looked into with an eye towards using the system xpdf
libraries.
9:11 p.m.
New subject: [trinity-devel] kpdf/xpdf
On 08/17/2012 03:21 PM, Timothy Pearson wrote:
I don't know why we need a copy of xpdf to be
honest. This needs to be
looked into with an eye towards using the system xpdf libraries.
Tim
I agree, how do we change the build so it uses the system xpdf? We can easily
add xpdf as a dependency, but that doesn't mean the tdegraphics build will use it...
Cautionary!!!
kpdf is working VERY VERY well in both R14 and 3513-sru. It is a 'must have'
app -- so please, please, DON'T BREAK IT :)
--
David C. Rankin, J.D.,P.E.
8:21 p.m.
New subject: [trinity-devel] kpdf/xpdf
On 17 August 2012 16:19, Darrell Anderson <humanreadable(a)yahoo.com> wrote:
I would say instead file a bug report requesting that we port to
poppler. That's what everyone else uses (and has for quite some time)
and is designed specifically as a library instead of including xpdf
It's
definitely building xpdf from the GIT tree. We need to
apply all patches or pull the latest xpdf code. Note the numerous deprecation
warnings associated with xpdf as well:
The primary issue then would seem to be that the internal Trinity xpdf is not being
updated with security patches.
The CMake files could probably be changed to use
xpdf
libraries instead of the statically built xpdf libraries from the GIT tree. Well
above my coding grade.
Likewise.
I'll write Yet Another Bug Report. Or two.
Darrell
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9:12 p.m.
New subject: [trinity-devel] kpdf/xpdf
On 08/17/2012 03:21 PM, Calvin Morrison wrote:
I would say instead file a bug report requesting that
we port to
poppler. That's what everyone else uses (and has for quite some time)
and is designed specifically as a library instead of including xpdf
I don't think we can right now. All poppler-qt3 code was dropped from poppler,
so you can't even build poppler-qt3 anymore. (may not be a total limitation, but
that limitation is there...)
--
David C. Rankin, J.D.,P.E.
9:14 p.m.
New subject: [trinity-devel] kpdf/xpdf
On 08/17/2012 03:21 PM, Calvin Morrison wrote:
Not a problem, we have and maintain poppler-tqt3 (in tdegraphics IIRC).
Tim
I would say instead file a bug report requesting
that we port to
poppler. That's what everyone else uses (and has for quite some time)
and is designed specifically as a library instead of including xpdf
I don't think we can right now. All poppler-qt3 code was dropped from
poppler,
so you can't even build poppler-qt3 anymore. (may not be a total
limitation, but
that limitation is there...)
--
David C. Rankin, J.D.,P.E.
9:32 p.m.
New subject: [trinity-devel] kpdf/xpdf
On 17 August 2012 17:14, Timothy Pearson <kb9vqf(a)pearsoncomputing.net> wrote:
Or if need be Qt4 integration would resolve that problem anyway.
Calvin
On 08/17/2012
03:21 PM, Calvin Morrison wrote:
Not a problem, we have and maintain poppler-tqt3 (in tdegraphics IIRC).
Tim
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I would say instead file a bug report requesting
that we port to
poppler. That's what everyone else uses (and has for quite some time)
and is designed specifically as a library instead of including xpdf
I don't think we can right now. All poppler-qt3 code was dropped from
poppler,
so you can't even build poppler-qt3 anymore. (may not be a total
limitation, but
that limitation is there...)
--
David C. Rankin, J.D.,P.E.
9:34 p.m.
New subject: [trinity-devel] kpdf/xpdf
On 17 August 2012 17:14, Timothy Pearson
<kb9vqf(a)pearsoncomputing.net>
wrote:
Or if need be Qt4 integration would resolve that problem anyway.
Calvin
We want to keep Qt4 out of the core, as Qt4 still suffers from a
performance hit on non-graphics-accelerated and embedded/low power
systems.
Tim
On
08/17/2012 03:21 PM, Calvin Morrison wrote:
Not a problem, we have and maintain poppler-tqt3 (in tdegraphics IIRC).
Tim
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I would say instead file a bug report requesting
that we port to
poppler. That's what everyone else uses (and has for quite some time)
and is designed specifically as a library instead of including xpdf
I don't think we can right now. All poppler-qt3 code was dropped from
poppler,
so you can't even build poppler-qt3 anymore. (may not be a total
limitation, but
that limitation is there...)
--
David C. Rankin, J.D.,P.E.
9:37 p.m.
New subject: [trinity-devel] kpdf/xpdf
On 17 August 2012 17:34, Timothy Pearson <kb9vqf(a)pearsoncomputing.net> wrote:
Ok understood - Either way poppler is a good idea. We only use poppler
now for afaik the previews for konqueror and other small things,
nothing full fledged.
Cal
On 17 August
2012 17:14, Timothy Pearson <kb9vqf(a)pearsoncomputing.net>
wrote:
Or if need be Qt4 integration would resolve that problem anyway.
Calvin
We want to keep Qt4 out of the core, as Qt4 still suffers from a
performance hit on non-graphics-accelerated and embedded/low power
systems.
Tim
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On
08/17/2012 03:21 PM, Calvin Morrison wrote:
> I would say instead file a bug report requesting that we port to
> poppler. That's what everyone else uses (and has for quite some time)
> and is designed specifically as a library instead of including xpdf
>
I don't think we can right now. All poppler-qt3 code was dropped from
poppler,
so you can't even build poppler-qt3 anymore. (may not be a total
limitation, but
that limitation is there...)
--
David C. Rankin, J.D.,P.E.
Not a problem, we have and maintain poppler-tqt3 (in tdegraphics IIRC).
Tim
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15 Sep
15 Sep
11:56 p.m.
New subject: [trinity-devel] kpdf/xpdf
On Fri, Aug 17, 2012 at 10:37 PM, Calvin Morrison <mutantturkey(a)gmail.com>wrote;wrote:
Ok understood - Either way poppler is a good idea. We only use poppler
now for afaik the previews for konqueror and other small things,
nothing full fledged.
Cal
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On 17 August 2012 17:34, Timothy Pearson
<kb9vqf(a)pearsoncomputing.net>
wrote:
Not to say anything from the dismal performance that KPDF has always
suffered from. The Gnome PDF viewer has been vastly superior performance
for a very long time. KPDF basically tries to re-render most pages during
scrolling, which is a very bad thing.
Best regards,
Tiago
On 17
August 2012 17:14, Timothy Pearson <kb9vqf(a)pearsoncomputing.net>
wrote:
We want to keep Qt4 out of the core, as Qt4 still suffers from a
performance hit on non-graphics-accelerated and embedded/low power
systems. > On 08/17/2012 03:21 PM, Calvin Morrison
wrote:
>> I would say instead file a bug report requesting that we port to
>> poppler. That's what everyone else uses (and has for quite some time)
>> and is designed specifically as a library instead of including xpdf
>>
>
> I don't think we can right now. All poppler-qt3 code was dropped from
> poppler,
> so you can't even build poppler-qt3 anymore. (may not be a total
> limitation, but
> that limitation is there...)
>
> --
> David C. Rankin, J.D.,P.E.
Not a problem, we have and maintain poppler-tqt3 (in tdegraphics IIRC).
Tim
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Or if need be Qt4 integration would resolve that problem anyway.
Calvin
Tim
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16 Sep
16 Sep
12:31 a.m.
New subject: [trinity-devel] kpdf/xpdf
Not to say anything from the dismal performance
that KPDF has always suffered from. The Gnome PDF viewer has
been vastly superior performance for a very long time. KPDF
basically tries to re-render most pages during scrolling,
which is a very bad thing.
I agree. I always have been frustrated by KPDF and long ago concluded there was something
fundamentally wrong about the KPDF design.
There does not seem to be a bug report specifically addressing that problem. Perhaps we
need one?
Darrell
3:10 a.m.
New subject: [trinity-devel] kpdf/xpdf
On Sun, Sep 16, 2012 at 1:31 AM, Darrell Anderson
<humanreadable(a)yahoo.com>wrote;wrote:
I would say so. Care to submit?
Tiago
Not to say
anything from the dismal performance
that KPDF has always suffered from. The Gnome PDF viewer has
been vastly superior performance for a very long time. KPDF
basically tries to re-render most pages during scrolling,
which is a very bad thing.
I agree. I always have been frustrated by KPDF and long ago concluded
there was something fundamentally wrong about the KPDF design.
There does not seem to be a bug report specifically addressing that
problem. Perhaps we need one?
Darrell
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3:54 a.m.
New subject: [trinity-devel] kpdf/xpdf
> Not to say anything from the dismal performance
> that KPDF has always suffered from. The Gnome PDF viewer has
> been vastly superior performance for a very long time. KPDF
> basically tries to re-render most pages during scrolling,
> which is a very bad thing.
There does not seem to be a bug report specifically
addressing that problem. Perhaps we need one?
I would say so. Care to submit?
Are there further technical details besides what you previously stated about rendering
during scrolling?
Any clues how to resolve? There is an open bug report to convert KPDF to poppler (bug
report 506). Possibly if just fixing the slow scrolling speed then KPDF users would be a
magnitude happier, even if not converted to poppler.
Darrell
18 Aug
18 Aug
12:37 a.m.
New subject: [trinity-devel] kpdf/xpdf
On Fri, 17 Aug 2012 11:05:04 -0700 (PDT)
Darrell Anderson <humanreadable(a)yahoo.com> wrote:
If I understand correctly, kpdf uses xpdf as a base
rendering engine. The xpdf code in the Trinity source tree uses 3.02 from February 2007,
which has been patched for security reasons several times since then.
There also is a patch to improve a scrolling speed bug that is caused by more recent gcc
versions.
The most recent version of xpdf is 3.03.
Many distros have these patches applied or use 3.03.
I attached a Gentoo xpdf upgrade patch from late 2009 to the first bug report.
Does anyone have anything better?
4233
days inactive
4263
days old
16 comments
6 participants
participants (6)
-
Calvin Morrison -
Darrell Anderson -
David C. Rankin -
E. Liddell -
Tiago Marques -
Timothy Pearson