Hello Maxim!
At my company, we were able to build Qt and WebKit under MSVC 2008, but
we are using the whole Qt stack, version 5.1. We had compiled 4.8.4 some
time ago, but we discovered the hard way that Javascript support wasn't
available in 64 bit version of WebKit until Qt 5.1.
32 and 64 bits build were possible. First, we've learned that there are
differences between TAR.GZ / TAR.XZ and ZIP packages downloaded from
Digia. The ZIP packages have some differences in build scripts that made
build in MSVC2008 possible.
But first, we had to compile ICU under MSVC2008 because WebKit depends
on it, and it's a PITA to do so.
I can't confirm you IF we have WebGL available in ours builds, because
it doesn't make difference for us.
If I can provide any further help, feel free to ask :)
Cheers,
Richard.
On 08/08/2013 11:09 AM, Maxim Schäfner wrote:
Hi Qt-Webkit mailing list members,
we are trying to build our own QtWebkit library which we can
distribute along with our Qt using application.
On our application we are using the MSVC Qt4.7.4 binaries from the
official Qt download links on their page.
But as we received the request that our application should support the
rendering of 3d models in an qwebview
widget, we noticed that the webkit which is used by the qwebview in
our application which is currently on Qt4.7.4 does not
support 3d rendering on GPU hardware. Than we realized that we have to
explicitly enable that feature by
supporting WebGL in our application's used Webkit.
Than we be told that if we want to have WebGL support, we have to use
the newer Qt5 binaries to enable
that feature. The problem is that at the moment we can't switch to an
Qt5+ version, because we have still to
support the older Qt3-classes which as we know are now removed from Qt
for version 5+.
After some research we found an url which states that there is a brach
of QtWebkit which uses the new
features of Qt5's webkit, but is able to be used on Qt-4.8. This
information we read on the following URL:
http://blogs.kde.org/2013/03/15/qtwebkit-230-out
So now we are trying to build our own QtWebkit with the help of the
trace.webkit information pages:
http://trac.webkit.org/wiki/QtWebKit
http://trac.webkit.org/wiki/BuildingQtOnWindows
http://trac.webkit.org/wiki/QtWebKitWebGL
After the install of all the needed tools described here:
http://trac.webkit.org/wiki/BuildingQtOnWindows
We used the build script which commando is written there:
perl Tools\Scripts\build-webkit --qt --release
With the addition to enable the WebGL support as written here:
http://trac.webkit.org/wiki/QtWebKitWebGL
-webgl
With the information of the first page:
http://blogs.kde.org/2013/03/15/qtwebkit-230-out
We added some additional parameters as noted there, because we need to
be only 32Bit:
--no-webkit2 --no-force-sse2
So with this additions the complete commando we received was this:
perl Tools\Scripts\build-webkit --qt --release --no-webkit2
-no-force-sse2 -webgl
Till now we always used the MSVC 2008 compiler with the available
already built binaries to build our application
on Windows. So we want to stay on that compiler for compatibility
with our application. As noted in the given links
we already downloaded the sources of Q4.8.4 which also have the
Qt3-classes support.
We already build the Qt4.8.4 sources with MSVC2008 to the respective
binaries and set the needed PATH
variables, too.
Then we started the building script for QtWebkit:
perl Tools\Scripts\build-webkit --qt --release --no-webkit2
-no-force-sse2 -webgl
Unfortunately the building failed with these parameters, with generic
compile errors in missing header files.
Then we found out that we maybe need some additional Webkit support
libraries as stated here:
http://aautar.digital-radiation.com/blog/?p=85
https://developer.apple.com/opensource/internet/webkit_sptlib_agree.html
But this did't helped either, as we still had generic compile errors.
So now we decided to build QtWebkit only with the default parameters
listed here to verify that we
are able to build QtWebkit at all. So we used the
default-non-extra-parameters-commando from:
http://trac.webkit.org/wiki/BuildingQtOnWindows
And so the following line:
perl Tools\Scripts\build-webkit --qt --release
And as we see, we are still not possible to build our own QtWebkit,
because we still get generic compile errors:
With the first ones are:
.......
NavigatorGeolocation.cpp
Code is generated...
cl -c -nologo -Zm200 -Zc:wchar_t- -wd4291 -wd4344 -wd4396
-wd4503 -wd4800 -wd4819 -wd4996 -O2 -MD -GR -EHsc -DUNICODE -DWIN32
-DQT_LARGEFILE_SUPPORT -DQT_MAKEDLL -DBUILDING_QT__=1 -D
NDEBUG -DBUILDING_WebCore -DBUILDING_WEBKIT -DQT_ASCII_CAST_WARNINGS
-DSTATICALLY_LINKED_WITH_JavaScriptCore -DSTATICALLY_LINKED_WITH_WTF
-DQT_MAKEDLL -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_NETWORK
_LIB -DQT_CORE_LIB -DQT_HAVE_MMX -DQT_HAVE_3DNOW -DQT_HAVE_SSE
-DQT_HAVE_MMXEXT -DQT_HAVE_SSE2 -DQT_THREAD_SUPPORT
-I"c:\OwnQtWebkit\qt-everywhere-opensource-src-4.8.4\qt-everywhere-opensour
ce-src-4.8.4\include\QtCore"
-I"c:\OwnQtWebkit\qt-every...cutted.away.too.long
;)..........ywhere-opensource-src-4.8.4\mkspec
s\win32-msvc2008" -Foobj\release\
@C:\DOKUME~1\ADMINI~1\LOKALE~1\Temp\nm71.tmp
AbstractDatabase.cpp
DOMWindowWebDatabase.cpp
Database.cpp
DatabaseAuthorizer.cpp
DatabaseContext.cpp
DatabaseSync.cpp
WorkerContextWebDatabase.cpp
c:\OwnQtWebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\Source\WebCore\Modules\webdatabase\WorkerContextWebDatabase.cpp(46)
: error C2027: use of undefined type "WebCore::WorkerContext"
c:\ownqtwebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\source\webcore\modules\webdatabase\WorkerContextWebDatabase.h(43):
See declaration of 'WebCore::Wo
rkerContext'
c:\OwnQtWebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\Source\WebCore\Modules\webdatabase\WorkerContextWebDatabase.cpp(46)
: error C2227: left of "->securityOrigi
n" must point to class/struct/union/generic type.
c:\OwnQtWebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\Source\WebCore\Modules\webdatabase\WorkerContextWebDatabase.cpp(46)
: error C2227: left of "->canAccessData
base" must point to class/struct/union/generic type.
c:\OwnQtWebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\Source\WebCore\Modules\webdatabase\WorkerContextWebDatabase.cpp(46)
: error C2027: use of undefined type "WebCore::WorkerContext"
c:\ownqtwebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\source\webcore\modules\webdatabase\WorkerContextWebDatabase.h(43): See
declaration of 'WebCore::Wo
rkerContext'
c:\OwnQtWebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\Source\WebCore\Modules\webdatabase\WorkerContextWebDatabase.cpp(46)
: error C2227: left of "->topOrigin" must point to
class/struct/union/generic type.
c:\OwnQtWebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\Source\WebCore\Modules\webdatabase\WorkerContextWebDatabase.cpp(51)
: error C2664: 'WebCore::Database::openDa
tabase': Converting of parameter 1 of 'WebCore::WorkerContext *' in
'WebCore::ScriptExecutionContext *' not possible
The types which are refernced are not linked; the convert
needs an reinterpret_cast-Operator or an type cast in C- or
Functionsformat.
c:\OwnQtWebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\Source\WebCore\Modules\webdatabase\WorkerContextWebDatabase.cpp(56)
: error C2027: use of undefined type "WebCore::WorkerContext"
c:\ownqtwebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\source\webcore\modules\webdatabase\WorkerContextWebDatabase.h(43): See
declaration of 'WebCore::Wo
rkerContext'
c:\OwnQtWebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\Source\WebCore\Modules\webdatabase\WorkerContextWebDatabase.cpp(56)
: error C2227: left of "->securityOrigi
n" must point to class/struct/union/generic type.
c:\OwnQtWebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\Source\WebCore\Modules\webdatabase\WorkerContextWebDatabase.cpp(56)
: error C2227: left of "->canAccessData
base" must point to class/struct/union/generic type.
c:\OwnQtWebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\Source\WebCore\Modules\webdatabase\WorkerContextWebDatabase.cpp(56)
: error C2027: use of undefined type "WebCore::WorkerContext"
c:\ownqtwebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\source\webcore\modules\webdatabase\WorkerContextWebDatabase.h(43): See
declaration of 'WebCore::Wo
rkerContext'
c:\OwnQtWebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\Source\WebCore\Modules\webdatabase\WorkerContextWebDatabase.cpp(56)
: error C2227: left of "->topOrigin" must point to
class/struct/union/generic type.
c:\OwnQtWebkit\qtwebkit-developers-qtwebkit-23-qtwebkit-2.3.0\webkit-qtwebkit-23\Source\WebCore\Modules\webdatabase\WorkerContextWebDatabase.cpp(61)
: error C2664: 'WebCore::DatabaseSync::op
enDatabaseSync': Converting of parameter 1 of 'WebCore::WorkerContext
*' to 'WebCore::ScriptExecutionContext *' not possible
The types which are refernced are not linked; the convert
needs an reinterpret_cast-Operator or an type cast in C- or
Functionsformat.
Code is generated...
NMAKE : fatal error U1077: ""C:\Programme\Microsoft Visual Studio
9.0\VC\BIN\cl.EXE"": Return-Code "0x2"
Stop.
NMAKE : fatal error U1077: ""C:\Programme\Microsoft Visual Studio
9.0\VC\BIN\nmake.exe"": Return-Code "0x2"
Stop.
NMAKE : fatal error U1077: ""C:\Programme\Microsoft Visual Studio
9.0\VC\BIN\nmake.exe"": Return-Code "0x2"
Stop.
NMAKE : fatal error U1077: "cd": Return-Code "0x2"
Stop.
NMAKE : fatal error U1077: ""C:\Programme\Microsoft Visual Studio
9.0\VC\BIN\nmake.exe"": Return-Code "0x2"
Stop.
.......
(I translated the errors messages from german to english, I hope they
are correctly translated, but the error code is the same)
So the build fails.
Now, what is this web database and what did we wrong in the whole
procedure?
Did we missed something? We appreciate any help we get.
Thank you very much if there some one there who can help us with this.
Thank you, best regards,
Max
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