Compile QtOpenCl.dll with Qt (64bit)

morflink

ololol, i searched them manually and found them
dunno why the autosearch cant track them.... OpenCL.lib and libOpenCL.a
what to do now ?

SGaist

Depending on your compiler link to either OpenCL.libg (Visual Studio) or libOpenCL.a if you are using MinGW

morflink

i use MSVS compiler for 64bit... how to link libs in the pro file?

SGaist

You can use Qt Creator built in dialog for that.

Or add

@
LIBS += -Lpath/to/sdk/ -lOpenCL
@

If you want to be independent from the SDK installation path, you can use the environment variables to generate the proper path

morflink

well, thank you so far... now the compiler says:
@NMAKE : fatal error U1077: ""C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\BIN\amd64\link.EXE"": Rückgabe-Code "0x49d"
Stop.
NMAKE : fatal error U1077: ""C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\BIN\amd64\nmake.exe"": Rückgabe-Code "0x2"
Stop.
NMAKE : fatal error U1077: "cd": Rückgabe-Code "0x2"
Stop.
NMAKE : fatal error U1077: "cd": Rückgabe-Code "0x2"
Stop.@

i just added the following:
@LIBS += -LC:/Program Files (x86)/AMD APP SDK/2.9/lib/x86_64 -lOpenCL@

SGaist

Spaces are really bad on windows

try

@LIBS += -L$$quote("C:/Program Files (x86)/AMD APP SDK/2.9/lib/x86_64"@

If that doesn't work, use the 8.3 naming scheme

morflink

if i just use this advice, i get the same errors like i got at the very beginning.
then i tried to copy paste the whole folder to another path without spaces and get still the same errors.
8.3 naming scheme means to give the files in particular like ?:

@LIBS += -L$$quote("C:/Program Files (x86)/AMD APP SDK/2.9/lib/x86_64/libOpenCL.a") -lOpenCl@

SGaist

No, the path itself and don't add the library name since you also pass the -lOpenCL option.

@LIBS += -LC:/PROGRA~1/AMDAPP~1/2.9/lib/x86_64@

Please check the both on the command line with dir /x

morflink

i just checkd and saw that its PROGRA~2 cuz of the standard Programms folder and the x86 one but the errors dont change.

SGaist

Can you post the current content of your pro file ?

morflink

@TEMPLATE = lib
TARGET = QtOpenCL
gcov {
CONFIG += staticlib
} else {
CONFIG += dll
}
CONFIG += warn_on
win32 {
DESTDIR = ../../bin
!static:DEFINES += QT_MAKEDLL
}
else:DESTDIR = ../../lib

win32 {
!isEmpty(QMAKE_INCDIR_OPENCL) {
QMAKE_CXXFLAGS += -I$$QMAKE_INCDIR_OPENCL
}
!isEmpty(QMAKE_LIBDIR_OPENCL) {
LIBS += -L$$QMAKE_LIBDIR_OPENCL
}
!isEmpty(QMAKE_LIBS_OPENCL) {
LIBS += $$QMAKE_LIBS_OPENCL
} else {
LIBS += -lOpenCL
}
}

macx:!opencl_configure {
LIBS += -framework OpenCL
}

LIBS += -LC:/PROGRA~2/AMDAPP~1/2.9/lib/x86_64

HEADERS +=
qclbuffer.h
qclcommandqueue.h
qclcontext.h
qcldevice.h
qclevent.h
qclglobal.h
qclimage.h
qclimageformat.h
qclkernel.h
qclmemoryobject.h
qclplatform.h
qclprogram.h
qclsampler.h
qcluserevent.h
qclvector.h
qclworksize.h

SOURCES +=
qclbuffer.cpp
qclcommandqueue.cpp
qclcontext.cpp
qcldevice.cpp
qclevent.cpp
qclimage.cpp
qclimageformat.cpp
qclkernel.cpp
qclmemoryobject.cpp
qclplatform.cpp
qclprogram.cpp
qclsampler.cpp
qcluserevent.cpp
qclvector.cpp
qclworksize.cpp

PRIVATE_HEADERS +=
qclext_p.h

HEADERS += $$PRIVATE_HEADERS
DEFINES += QT_BUILD_CL_LIB

opencl_1_1 {
DEFINES += QT_OPENCL_1_1
}

@

SGaist

Just to be sure I understand you correctly, you are again getting the missing symbols error ?

morflink

[quote author="SGaist" date="1402867816"]Just to be sure I understand you correctly, you are again getting the missing symbols error ?[/quote]

yes

morflink

maybe this is an interessting information...
i just used the 32bit Qt 4.7.1 and the compiled qtopencl libraries... is it possible that there are just older files or installations of whatsoever which causes failures like that?
i simply followed the instructions and maybe this is a reason why is just dont work out as it should.

SGaist

This is interesting indeed, you are compiling a 32 bit version of QtOpenCL but you are linking to the 64 bit library. Either rebuild Qt in 64 bit or link to the 32 bit OpenCL libraries

morflink

what i wanted to say was, that i used 32bit Qt and opencl1.2 in the past.
i just hope this is no misunderstanding, as i just wrote this down in the very first post.
i alrdy compiled 4.7.1 64bit and it works. what i just tried for now, is getting my older sourcecode work on 64bit, what also needs new QtOpenCL libraries.

SGaist

Did you rebuild your old project from scratch ? Also check that you don't have a CONFIG += x86 somewhere in that project

morflink

i have nothing like config += x86 in any of the pro files.
but i just works now.
i took QtOpenCL libraries and a few dlls more (opencl.dll, qtopencl.dll qtgui4.dll, qtcore4.dll, msvcp100.dll and msvcr100.dll) from a friend and everything is fine now.
regardless, i cant compile the clinfo.pro nor the rest of the qtopencl project.
just sad that i cant understand whats going wrong here.

SGaist

How did you compile QtOpenCL itself ? Command line or Qt Creator ? In the second case, did you perhaps configure it with a Kit using a 32bit Qt ?

morflink

in the past i compiled the 32bit qtopencl libraries by the qtopencl project in qtcreator as described in the first post.
i just was trying to do that for 64bit Qt in the same manner with a 64bit compiled qt 4.7.1.
it just dont worked out.