gl-render.cc: framework OpenGL on MacOSX

[Ben Abbott]

On Jan 31, 2009, at 2:17 PM, Thomas Treichl wrote:

> Ben Abbott schrieb:
>> bens-macbook:~ bpabbott$  grep -re "gluTessCallback" \
>> /System/Library/Frameworks/OpenGL.framework/Versions/Current/ 
>> Headers/glu.h
>> extern void gluTessCallback (GLUtesselator* tess, GLenum which,  
>> GLvoid (*CallBackFunc)());
>
> This is the same than on my Mac.
>
>> bens-macbook:~ bpabbott$ grep -re "glGetIntegerv" \
>> /System/Library/Frameworks/OpenGL.framework/Versions/Current/ 
>> Headers/gl.h
>> typedef void (* glGetIntegervProcPtr) (GLenum pname, GLint *params);
>> extern void glGetIntegerv (GLenum pname, GLint *params);
>
> This also is the same than on my Mac.
>
> The API has not changed between 10.4.11 and 10.5.x. Now I'm  
> completely confused why I get an error if I mix up "int *" with  
> "GLint *" and you don't get an error. Is there a third OpenGL  
> library on your Mac, maybe it comes with Fink? If that is true can  
> you find for me the gl.h please, somehow like this
>
> bash$ find /sw -iname gl.h

This migh explain my problems with the new backend.

bens-macbook:~ bpabbott$ find /sw -iname gl.h
/sw/include/FL/gl.h
/sw/include/mesa/GL/gl.h
/sw/src/fink.build/jogl-1.1.1-1/jogl/make/stub_includes/opengl/GL/gl.h

> or even better, can you send me the output of this please
>
> bash$ find / -iname gl.h

I've removed the "permssion denied" warnings, as well as some local  
versions in located in some sources in my home folder (not in any path).

bens-macbook:~ bpabbott$ find / -iname gl.h
/Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/ 
AGL.framework/Versions/A/Headers/gl.h
/Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/ 
OpenGL.framework/Versions/A/Headers/gl.h
/Developer/SDKs/MacOSX10.4u.sdk/usr/X11R6/include/GL/gl.h
/Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/AGL.framework/ 
Versions/A/Headers/gl.h
/Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/ 
OpenGL.framework/Versions/A/Headers/gl.h
/Developer/SDKs/MacOSX10.5.sdk/usr/X11/include/GL/gl.h
/sw/include/FL/gl.h
/sw/include/mesa/GL/gl.h
/sw/src/fink.build/jogl-1.1.1-1/jogl/make/stub_includes/opengl/GL/gl.h
/System/Library/Frameworks/AGL.framework/Versions/A/Headers/gl.h
/System/Library/Frameworks/OpenGL.framework/Versions/A/Headers/gl.h
/usr/X11/include/GL/gl.h
/usr/X11R6 1/include/GL/gl.h

> I will do some tests and write a small script and/or program we can  
> then play with (if you want to). I suspect something is being set  
> wrong.

I'm always happy to help out.

>> My problems are more complicated. I get a window, but rather than  
>> containing the proper image/plot it contains pieces of other things  
>> on my screen (related to Fink I think). For the time being, I have  
>> no real interest in fixing that particular problem. Instead I'm  
>> looking at what can be done to improve the gnuplot backend and  
>> improving lower level support for the backend (property related  
>> stuff and soon listeners).
>
> So I was wrong ;)
>
> Yes I know that you're working on the Gnuplot backend, I sometimes  
> have a look at that many changesets you send ;) Thanks for them! But  
> if you don't mind I send the one or more source file to you in the  
> near future for tests on a 10.5 system - currently nobody else  
> joined up as volunteer ;(

Send all the files you want. I'm happy to do testing on Leopard.

Ben