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digitalmars.D.learn - OpenGL in D2

reply Siqu <user example.net> writes:
Hi,
I'm trying to figure out how I could get a simple OpenGL/GLUT program working
in DMD2. As an attachment, I've added a C version of what I'd like to do. I'd
compile the C version using:
gcc simple.c -lglut -lGLU -o simple

I've found a few OpenGL projects, like bindings
(http://www.dsource.org/projects/bindings/) and derelict
(http://www.dsource.org/projects/derelict/), but I still can't find any way to
easily use or install them (for D2 on Ubuntu). I'd have thought that, since D
interfaces so well with C, just using C libraries wouldn't require specific
wrapper libraries, but it seems an automated method for converting C headers
to D isn't currently possible?

Anyway, any help would be appreciated,
Thanks.
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`
end
Feb 21 2011
next sibling parent reply Nrgyzer <nrgyzer gmail.com> writes:
== Auszug aus Siqu (user example.net)'s Artikel

 Hi,
 I'm trying to figure out how I could get a simple OpenGL/GLUT


program working

 in DMD2. As an attachment, I've added a C version of what I'd like


to do. I'd

 compile the C version using:
 gcc simple.c -lglut -lGLU -o simple
 I've found a few OpenGL projects, like bindings
 (http://www.dsource.org/projects/bindings/) and derelict
 (http://www.dsource.org/projects/derelict/), but I still can't find


any way to

 easily use or install them (for D2 on Ubuntu). I'd have thought


that, since D

 interfaces so well with C, just using C libraries wouldn't require


specific

 wrapper libraries, but it seems an automated method for converting


C headers

 to D isn't currently possible?
 Anyway, any help would be appreciated,
 Thanks.
  << simple.c >>


I'm using derelict, primary on windows, but I've also a running
version on Ubuntu.
You can download derelict at http://www.dsource.org/projects/derelict/
changeset/525/branches/Derelict2?old_path=%2F&format=zip

I think you've already a running version of the dmd-compiler? If yes,
you can simply extract the package, open your shell browse to the
extracted folder and run "make -flinux.mak DC=dmd" which worked for
me on windows and linux (make sure you've installed make and dmd is
in your environment-values). On windows you've to create a folder
called "lib" before you run the command above - I currently can't say
it exactly if it's needed on linux, too.
After it compiled, you can copy all the created lib-files to the lib-
folder (I think this should be /usr/lib or something like this - run
"find / -name 'phobos.lib'" and copy the lib-files to the same
directory where phobos.lib is located. Copy the content of the
"import"-dir to a location where you've all your binding for D, so
that you can simply use "import derelict.sdl.sdl" or similar.

When you've installed it correctly, you can use derelict/opengl like
described on the derelict site. Note that you have to use 'pragma
(lib, "DerelictSDL")' or similar to use the binding. It is also
important the you insert 'pragma(lib, "dl")' in you source that you
can compile it successfully.

I hope this helped :)
Feb 21 2011
parent reply Sequ <user example.net> writes:
Quoted from Nrgyzer:

 On windows you've to create a folder called "lib"
 before you run the command above - I currently
 can't say it exactly if it's needed on linux, too.


I did need to create a 'lib' directory before running 'make -flinux.mak DC=dmd'.


 After it compiled, you can copy all the created
 lib-files to the lib-folder


My 'lib' folder was in /usr/lib, although that folder didn't contain
'phobos.lib',
but 'libphobos2.a'. Hopefully that works correctly.


 Copy the content of the "import"-dir to a
 location where you've all your binding for D


For now, I've just copied it into an 'import' folder in the same folder as my
source code. I suspect the correct directory is
'/usr/include/d/dmd/druntime/import'.

I got an SDL example working by then using the command:
dmd -L-lDerelictGL -L-lDerelictGLU -L-lDerelictUtil -L-lDerelictSDL test_sdl.d
but unfortunately I couldn't get my example working, because it requires GLUT
and
the derelict library doesn't have that included. I'd actually prefer to use GLUT
and also, eventually, other obscure C libraries that I know no-one else would
have
ported, but I suppose I'll take a look at the links provided in Trass3r's post
before asking more about that.


 I hope this helped :)


Thanks, yes that was quite helpful!

Quoted from Dmitry Olshansky:

 Sadly your file goes like rubbish for me, is
 that base64 ?


Yeah, I see it turned out odd, but I'm using the web interface to post here (it
seems my Thunderbird in the Lab can't access the news server from behind all the
firewalls - or something). The file is actually just one of the first examples
from the OpenGL tutorials.
Feb 23 2011
parent Nrgyzer <nrgyzer gmail.com> writes:
== Auszug aus Sequ (user example.net)'s Artikel

 Quoted from Nrgyzer:

 On windows you've to create a folder called "lib"
 before you run the command above - I currently
 can't say it exactly if it's needed on linux, too.


 I did need to create a 'lib' directory before running 'make -


flinux.mak DC=dmd'.

 After it compiled, you can copy all the created
 lib-files to the lib-folder


 My 'lib' folder was in /usr/lib, although that folder didn't


contain 'phobos.lib',

 but 'libphobos2.a'. Hopefully that works correctly.

 Copy the content of the "import"-dir to a
 location where you've all your binding for D


 For now, I've just copied it into an 'import' folder in the same


folder as my

 source code. I suspect the correct directory is '/usr/include/d/dmd/


druntime/import'.

 I got an SDL example working by then using the command:
 dmd -L-lDerelictGL -L-lDerelictGLU -L-lDerelictUtil -L-lDerelictSDL


test_sdl.d

 but unfortunately I couldn't get my example working, because it


requires GLUT and

 the derelict library doesn't have that included. I'd actually


prefer to use GLUT

 and also, eventually, other obscure C libraries that I know no-one


else would have

 ported, but I suppose I'll take a look at the links provided in


Trass3r's post

 before asking more about that.


As I know, GLUT was also ported (http://www.yage3d.net/host/
derelict.glut.zip). I also tried it with DMD and Derelict - both V1,
but I can't get it to work. I think the mistake was on my own, but I
didn't spend them much time. The binding is from 2006 (or 2007) and
for those I don't suggest you to use it, especially I think it
doesn't work with DMD 2 and/or Derelict 2.


 I hope this helped :)


 Thanks, yes that was quite helpful!
 Quoted from Dmitry Olshansky:

 Sadly your file goes like rubbish for me, is
 that base64 ?


 Yeah, I see it turned out odd, but I'm using the web interface to


post here (it

 seems my Thunderbird in the Lab can't access the news server from


behind all the

 firewalls - or something). The file is actually just one of the


first examples

 from the OpenGL tutorials.
Feb 23 2011
prev sibling next sibling parent reply Dmitry Olshansky <dmitry.olsh gmail.com> writes:
On 21.02.2011 13:33, Siqu wrote:

 Hi,
 I'm trying to figure out how I could get a simple OpenGL/GLUT program working
 in DMD2. As an attachment, I've added a C version of what I'd like to do. I'd
 compile the C version using:
 gcc simple.c -lglut -lGLU -o simple

 I've found a few OpenGL projects, like bindings
 (http://www.dsource.org/projects/bindings/) and derelict
 (http://www.dsource.org/projects/derelict/), but I still can't find any way to
 easily use or install them (for D2 on Ubuntu). I'd have thought that, since D
 interfaces so well with C, just using C libraries wouldn't require specific
 wrapper libraries, but it seems an automated method for converting C headers
 to D isn't currently possible?


There is htod tool in the digitalmars website, but it's windows only. 
Also it still leaves much to be desired.
IMHO Derelict is so far the best way to OpenGL and such in D, because of 
the nice way it loads & handles all these weirdness with loading, say, 
OpenGL extensions. And automatically picking up any suitable shared lib 
is big win.


 Anyway, any help would be appreciated,
 Thanks.


Sadly your file goes like rubbish for me, is that base64 ?


-- 

Dmitry Olshansky
Feb 21 2011
parent "Denis Koroskin" <2korden gmail.com> writes:
On Mon, 21 Feb 2011 14:45:51 +0300, Dmitry Olshansky  
<dmitry.olsh gmail.com> wrote:


 On 21.02.2011 13:33, Siqu wrote:

 Hi,
 I'm trying to figure out how I could get a simple OpenGL/GLUT program  
 working
 in DMD2. As an attachment, I've added a C version of what I'd like to  
 do. I'd
 compile the C version using:
 gcc simple.c -lglut -lGLU -o simple

 I've found a few OpenGL projects, like bindings
 (http://www.dsource.org/projects/bindings/) and derelict
 (http://www.dsource.org/projects/derelict/), but I still can't find any  
 way to
 easily use or install them (for D2 on Ubuntu). I'd have thought that,  
 since D
 interfaces so well with C, just using C libraries wouldn't require  
 specific
 wrapper libraries, but it seems an automated method for converting C  
 headers
 to D isn't currently possible?


 There is htod tool in the digitalmars website, but it's windows only.  
 Also it still leaves much to be desired.
 IMHO Derelict is so far the best way to OpenGL and such in D, because of  
 the nice way it loads & handles all these weirdness with loading, say,  
 OpenGL extensions. And automatically picking up any suitable shared lib  
 is big win.


 Anyway, any help would be appreciated,
 Thanks.


 Sadly your file goes like rubbish for me, is that base64 ?


All attachments are encoded, but your client should be able to decode it  
without any issues.
Try other software, I recommend Opera's built-in mail client (which  
features NTTP support).
Feb 21 2011
prev sibling parent Trass3r <un known.com> writes:
 I've found a few OpenGL projects, like bindings
 (http://www.dsource.org/projects/bindings/) and derelict
 (http://www.dsource.org/projects/derelict/), but I still can't find any way to
 easily use or install them (for D2 on Ubuntu).


Use derelict2 from svn and xfBuild. Then you just need to tell dmd where
derelict is via -I



 I'd have thought that, since D
 interfaces so well with C, just using C libraries wouldn't require specific
 wrapper libraries, but it seems an automated method for converting C headers
 to D isn't currently possible?


Derelict does a lot more, it hides all the nasty handling of different OpenGL
versions that might be installed along with extension loading.

To my knowledge there are several tools to convert C headers to D import
modules:
- htod, which is crappy. Since it's based on dmc, it nearly always complains
about header files and the like; it doesn't translate preprocessor conditional
compilation to versions or static if and almost always messes something up
(const or whatever, can't remember)
- SWIG, which I haven't tried yet for that purpose. But I think it will have
the same problem with preprocessor conditional compilation.
- c2d, don't know how good it works:
http://dsource.org/projects/visuald/browser/trunk/c2d
- bcd, which is obviously abandoned: http://www.dsource.org/projects/bcd
Feb 21 2011