Re: [UFO-devel] Hallo Wieder - Clarification of my problem - I will pay $ for your consulting!

[Andrew H. <hv...@st...>]

> Hi Andrew,
>
> On Sunday 20 May 2007, Andrew Hvatum wrote:
>   
>> Gruss Johannes,
>>
>> Thanks for all the help! The program is working really well. It's still
>> a way from completion, but I'll send
>> you the source and a copy when it's finished.
>>
>> I'd like to statically link the final executable with libUFO, sorry if
>> this is a dumb question, but how do I
>> get it to produce a libUFO.a file that I can link with? If this is hard
>> to do, how else could I go about
>> setting up the program so it runs on platforms where people don't have
>> libUFO installed?
>>     
>
> You could still deliver the dynamic library and add the directory to the 
> dll/so search path, e.g. setting the LD_LIBRARY_PATH environment variable 
> under unix like systems.
>
> To create static libraries, run configure with
> ./configure --enable-static
>
> (see also ./configure --help)
>
>
> Regards,
> Johannes
>   
Thanks! That worked, now it compiles and gives me a libufo.a file.

When I try to run make on my program to statically link it I get a 
series of errors. Maybe you could take a
quick look and tell me if it's a problem with my system/code? Or maybe 
libufo isn't really designed to be
statically linked so that's what's making it unhappy.

All the errors seem to be restricted to usharedlib.cpp (not needed when 
using static libs, I think) and uxglxdriver,
so I'm going to go and try commenting both of those files out before 
statically compiling libufo and see what happens.

Mit freundlichen Grüssen!
Andrew

[hvatum@cs18 MakeMosaic]$ make
g++ MakeMosaic.cpp libufo.a -o MosaicMaximus.exe
usharedlib.o: In function `ufo::USharedLib::unload()':
/learning/libUFO/ufo-0.8.4/src/usharedlib.cpp:219: undefined reference 
to `dlclose'
usharedlib.o: In function `ufo::USharedLib::load(std::basic_string<char, 
std::char_traits<char>, std::allocator<char> > const&, 
ufo::USharedLib::ldmode_t)':
/learning/libUFO/ufo-0.8.4/src/usharedlib.cpp:138: undefined reference 
to `dlopen'
usharedlib.o: In function 
`ufo::USharedLib::symbol(std::basic_string<char, std::char_traits<char>, 
std::allocator<char> > const&)':
/learning/libUFO/ufo-0.8.4/src/usharedlib.cpp:80: undefined reference to 
`dlsym'
/learning/libUFO/ufo-0.8.4/src/usharedlib.cpp:82: undefined reference to 
`dlerror'
uxglxdriver.o: In function `ufo::UXGLXDevice::setDecorations()':
ux/uxglxdriver.cpp:1078: undefined reference to `XInternAtom'
ux/uxglxdriver.cpp:1082: undefined reference to `XChangeProperty'
uxglxdriver.o: In function `ufo::UXGLXDevice::setWMHints()':
ux/uxglxdriver.cpp:1119: undefined reference to `XAllocWMHints'
ux/uxglxdriver.cpp:1128: undefined reference to `XSetWMHints'
ux/uxglxdriver.cpp:1130: undefined reference to `XFree'
ux/uxglxdriver.cpp:1173: undefined reference to `XInternAtom'
ux/uxglxdriver.cpp:1173: undefined reference to `XChangeProperty'
ux/uxglxdriver.cpp:1185: undefined reference to `XInternAtom'
ux/uxglxdriver.cpp:1185: undefined reference to `XChangeProperty'
ux/uxglxdriver.cpp:1189: undefined reference to `XInternAtom'
ux/uxglxdriver.cpp:1189: undefined reference to `XDeleteProperty'
ux/uxglxdriver.cpp:1139: undefined reference to `XInternAtom'
ux/uxglxdriver.cpp:1141: undefined reference to `XInternAtom'
ux/uxglxdriver.cpp:1150: undefined reference to `XInternAtom'
ux/uxglxdriver.cpp:1154: undefined reference to `XInternAtom'
ux/uxglxdriver.cpp:1158: undefined reference to `XInternAtom'
uxglxdriver.o:ux/uxglxdriver.cpp:1162: more undefined references to 
`XInternAtom' follow
uxglxdriver.o: In function `ufo::UXGLXDevice::setWMHints()':
ux/uxglxdriver.cpp:1177: undefined reference to `XDeleteProperty'
uxglxdriver.o: In function `ufo::UXGLXDevice::setSizeHints()':
ux/uxglxdriver.cpp:1089: undefined reference to `XAllocSizeHints'
ux/uxglxdriver.cpp:1111: undefined reference to `XSetWMNormalHints'
uxglxdriver.o: In function `ufo::UXGLXDevice::hide()':
ux/uxglxdriver.cpp:973: undefined reference to `XDestroyWindow'
ux/uxglxdriver.cpp:977: undefined reference to `XFlush'
uxglxdriver.o: In function `ufo::UXGLXDevice::show()':
ux/uxglxdriver.cpp:904: undefined reference to `XCreateColormap'
ux/uxglxdriver.cpp:918: undefined reference to `XCreateWindow'
ux/uxglxdriver.cpp:948: undefined reference to `XSetWMProtocols'
ux/uxglxdriver.cpp:951: undefined reference to `XMapWindow'
uxglxdriver.o: In function 
`ufo::UXGLXDevice::setTitle(std::basic_string<char, 
std::char_traits<char>, std::allocator<char> > const&)':
ux/uxglxdriver.cpp:843: undefined reference to `XStringListToTextProperty'
ux/uxglxdriver.cpp:845: undefined reference to `XSetWMName'
ux/uxglxdriver.cpp:846: undefined reference to `XSetWMIconName'
uxglxdriver.o: In function `ufo::UXGLXDevice::setLocation(int, int)':
ux/uxglxdriver.cpp:825: undefined reference to `XMoveWindow'
uxglxdriver.o: In function `ufo::UXGLXDevice::setSize(int, int)':
ux/uxglxdriver.cpp:805: undefined reference to `XSetWMNormalHints'
ux/uxglxdriver.cpp:806: undefined reference to `XResizeWindow'
uxglxdriver.o: In function `ufo::UXGLXDriver::mapX11Unicode(XKeyEvent 
const&)':
ux/uxglxdriver.cpp:446: undefined reference to `XLookupString'
uxglxdriver.o: In function `ufo::UXGLXDriver::mapX11Keycode(XKeyEvent 
const&)':
ux/uxglxdriver.cpp:360: undefined reference to `XKeycodeToKeysym'
uxglxdriver.o: In function `ufo::UXGLXDriver::quit()':
ux/uxglxdriver.cpp:139: undefined reference to `XSync'
ux/uxglxdriver.cpp:146: undefined reference to `XCloseDisplay'
uxglxdriver.o: In function `ufo::UXGLXDriver::init()':
ux/uxglxdriver.cpp:77: undefined reference to `XDisplayName'
ux/uxglxdriver.cpp:77: undefined reference to `XOpenDisplay'
ux/uxglxdriver.cpp:110: undefined reference to `XDisplayName'
ux/uxglxdriver.cpp:121: undefined reference to `XInternAtom'
uxglxdriver.o: In function `ufo::UXGLXDriver::pumpEvents()':
ux/uxglxdriver.cpp:162: undefined reference to `XFlush'
ux/uxglxdriver.cpp:165: undefined reference to `XNextEvent'
ux/uxglxdriver.cpp:164: undefined reference to `XPending'
uxglxdriver.o: In function `ufo::UXGLXDevice::setSizeHints()':
ux/uxglxdriver.cpp:1112: undefined reference to `XFree'
uxglxdriver.o: In function `UGLXVideoPlugin::isAvailable()':
ux/uxglxdriver.cpp:716: undefined reference to `XOpenDisplay'
ux/uxglxdriver.cpp:718: undefined reference to `XCloseDisplay'
libufo.a(uxsdldriver.o): In function `ufo::UXSDLDevice::setLocation(int, 
int)':
ux/uxsdldriver.cpp:509: undefined reference to `XMoveWindow'
collect2: ld returned 1 exit status
make: *** [all] Error 1
[hvatum@cs18 MakeMosaic]$

>
>   
>>> Hi again,
>>>
>>> Just to make clear that the image is correctly displayed:
>>> I have attached the openclipart.org logo (which is public domain) as C
>>> header file (char array), again named "fuzzy.h".
>>>
>>> The previous one was just random painting with the GIMP and looked like
>>> some screwed up memory ...
>>>
>>>
>>> I hope I have the time on weekend to describe the UFO architecture
>>> a little bit.
>>>
>>>
>>> Regards,
>>> Johannes
>>>
>>> Am Freitag, 11. Mai 2007 14:28 schrieb Johannes Schmidt:
>>>       
>>>> Hi Andrew,
>>>>
>>>> I have to admit, that it isn't really outlined in detail,
>>>> how to use images in LibUFO.
>>>>
>>>> If you want to pipe an array of chars representing an image, you can use
>>>> UImageIO to create the basic image software buffer used in UFO.
>>>>
>>>> To get a hardware image (i.e. OpenGL image) usable in UFO,
>>>> you need a UImage object.
>>>> Usually, you shouldn't need to use the UGL_Image class directly.
>>>>
>>>> In short:
>>>> Use the display image to convert the UImageIO object (the software
>>>> buffer) to a UImage object (the hardware surface).
>>>> UImage * UDisplay::createImage(UImageIO *);
>>>>
>>>> Longer version:
>>>> Several backends handle hardware data differently (especially, how
>>>> hardware surfaces are shared between contexts)
>>>>
>>>> The display object handles the whole connection to the underlying system
>>>> and controls all data acquired by the system (for instance an OpenGL
>>>> texture encapsulated in a UImage object).
>>>>
>>>> Therefore, the display object is responsible for all data/memory
>>>> allocated by the system, as video devices, images, fonts, events etc.
>>>> (this has changed a little bit over time, so this is usually done by the
>>>> UXDisplay class, whereas the UDisplay class is still a bit limited).
>>>>
>>>> I have attached two files:
>>>> A modified version of test/base.cpp, which reads in a char array,
>>>> creates a UImageIO object, then a UImage object and uses this as Icon
>>>> for a label.
>>>>
>>>> A header file called fuzzy.h which contains the image array (created
>>>> with the GIMP).
>>>>
>>>> Compile it via:
>>>> g++ -o base base.cpp `pkg-config --cflags --libs ufo`
>>>>
>>>> If you have the GIMP, you can create another image and save it as C
>>>> header under the name "fuzzy.h", then recompile.
>>>>
>>>> If there are any problems understanding the code, please ask.
>>>>
>>>>
>>>> Best regards,
>>>> Johannes
>>>>
>>>> Am Freitag, 11. Mai 2007 03:43 schrieb hv...@st...:
>>>>         
>>>>> Hi again,
>>>>>
>>>>> I'm having some serious trouble trying to figure out how to pass an
>>>>> image so that libUFO displays it. I'm trying to follow the directions
>>>>> which you outlined on this email that I found archived on the mailing
>>>>> list, but I can't for the life of me get it to work.
>>>>>
>>>>> I'm really panicking, because I need to have this functionality working
>>>>> soon. As far as I can tell from the specifications on sourceforge,
>>>>> UGL_Image must be passed as an argument to UImage, and then you can
>>>>> pass UImageIO as an argument to UGL_Image? (And UGL_Image can take a
>>>>> flat array of unsigned char, each representing one color of a pixel).
>>>>>
>>>>> If you could write out a quick example which reads in an image from an
>>>>> array or something (not a file, I can do that with UIcon) and explain a
>>>>> bit how it functions I'd be happy to Paypal you $25 for all the time
>>>>> you've spent helping me. Consider it a "donation" for all the hard work
>>>>> you've put into this great toolkit!
>>>>>
>>>>> Mit sehr Freundlichen Grussen,
>>>>> Andrew
>>>>>
>>>>> "It is not that trivial but it is possible.
>>>>>
>>>>> If you do not care about performance too much (at least in the
>>>>> beginning), you can use the built-in image class (UImage) and assign
>>>>> this as icon of a label (or button).
>>>>>
>>>>> That means, you create your own image buffer and feed it as RGB(A) data
>>>>> to an UImageIO class, create an image and so on. I have attached a
>>>>> small example (image.cpp) which shows how to do that (based on the
>>>>> base.cpp example). Compile it via:
>>>>> g++ -o image image.cpp `pkg-config --cflags --libs ufo`
>>>>>
>>>>> Otherwise you can draw the image yourself using OpenGL methods. To do
>>>>> this, you have to subclass UWidget and override
>>>>> UWidget::paintWidget(UGraphics*) with your own code (set up matrices
>>>>> and OpenGL state, draw image, revert OpenGL matrices and states). "
>>>>>           
>
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