- HOpenGL - Haskell.org

The Teleshop! .. (that plays upon a pleasant instrument; but their hearts are )
by Gupta G. Formalization 25 Sep '04

25 Sep '04

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for mr. Moro. .. (same thing about him. But alas! to our shame be it )
by Transparency U. Yearns 24 Sep '04

24 Sep '04

1 0

E-mail direct marketing... (those that worship the Virgin Mary. And as for you )
by Honiara A. Minuscules 22 Sep '04

22 Sep '04

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building error
by Mauro Araujo 10 Sep '04

10 Sep '04

Hi folks, I'm trying to build the 'fptools' under my windows xp and in order to enable the hopengl I've performed a ./configure --host=i386-unknown-mingw32 --with-gcc=c:/mingw/bin/gcc --enable-hopengl followed by a 'make' in the root directory of fptools. But I'm getting the following error: ------------------------------------------------------------------------------------------------------------------------ make[4]: Leaving directory `/cygdrive/e/projeto/fptools/ghc/rts/gmp' ../../ghc/compiler/ghc-inplace -optc-mno-cygwin -optc-O -optc-Wall -optc-W -optc-Wstrict-prototypes -optc-Wmissing-prototypes -optc-W missing-declarations -optc-Winline -optc-Waggregate-return -optc-Wbad-function-cast -optc-I../includes -optc-I. -optc-Iparallel -optc -DCOMPILING_RTS -optc-Iwin32 -optc-fomit-frame-pointer -H16m -O -O2 -static -#include Prelude.h -#include Rts.h -#include RtsFlags.h -#include RtsUtils.h -#include StgRun.h -#include Schedule.h -#include Printer.h -#include Sanity.h -#include Storage.h -#include Sch edAPI.h -#include Timer.h -#include Itimer.h -#include ProfHeap.h -#include LdvProfile.h -#include Profiling.h -#include Apply.h -fvi a-C -dcmm-lint -c Linker.c -o Linker.o Linker.c: In function `ocResolve_PEi386': Linker.c:2023: warning: deprecated use of label at end of compound statement Linker.c:2046: warning: left-hand operand of comma expression has no effect Linker.c:2046: warning: left-hand operand of comma expression has no effect Linker.c:2046: parse error before ';' token make[2]: *** [Linker.o] Error 1 make[1]: *** [all] Error 1 make[1]: Leaving directory `/cygdrive/e/projeto/fptools/ghc' make: *** [build] Error 1 ------------------------------------------------------------------------------------------------------------------------ does anyone here have any idea of what I'm doing wrong? cheers, -- Mauro

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Exiting application
by David Waern 07 Sep '04

07 Sep '04

Hi. How are you supposed to handle the event of a user who closes the hopengl window? I see no way to detect this with the API. The main loop of hopengl just keeps running. Also, when I have the hopengl mainloop running and I destroy the current window (or exit with System.Exit.exitWith), both ghci and hugs just dies along with the app. Am i doing something wrong? Anyway, thanks for a good library. David

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wxHaskell and OpenGL?
by Patrick Scheibe 25 Aug '04

25 Aug '04

Hi there. I'm looking for a GUI for a small programm. It will contain some OGL graphics. My question is: Is there a way to combine opengl with an existing GUI without loosing the functionality of GLUT? Or is it possible to open a GLUT-window in an other GUI? I've had a closer look at wxhaskell which seems not so difficult to use. But I think theres no way to realise window in window idea because they have there own implementation of an opengl panel. If this works in any way, on what GUI should I have a closer look. Cheers Patrick

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Re: HOpenGL on macs?
by Carlos Scheidegger 25 Jun '04

25 Jun '04

> > The problem I'm seeing is that the HOpenGL GLUT window is being > > created without problems, but it seems that no calls are getting > > through to the driver: nothing I do on the display callback gets > > rendered. I have no idea what may be happening, but I wonder if you're > > experiencing the same problem. I'm running OSX 10.3.4 on a > > Radeon-based iBook.. > > No, everything works fine here... more details please (ghc --version, > source code, build command, ...). > You might want to Cc the hopengl(a)haskell.org list, in case someone > there figures it out. Sorry for the lack of details in the previous message... $ ghc --version The Glorious Glasgow Haskell Compilation System, version 6.2.1 The source code: ----- import Graphics.UI.GLUT import Graphics.Rendering.OpenGL main = do (progName, _) <- getArgsAndInitialize createAWindow progName mainLoop createAWindow windowName = do createWindow windowName displayCallback $= displayPoints displayPoints = do clearColor $= Color4 1.0 0.0 0.0 1.0 clear [ColorBuffer] renderPrimitive Polygon $ mapM_ (\ (x,y,z)-> vertex $ Vertex3 x y z) myPoints swapBuffers myPoints :: [(GLfloat, GLfloat, GLfloat)] myPoints = [(-0.25, 0.25, 0.0) ,(0.75, 0.35, 0.0) ,(0.75, -0.15, 0.0) ,(-0.75, -0.25, 0.0)] ----- The build command: $ ghc --make APolygon.hs -o APolygon What happens is that the window seems to be created ok (at least I get a window entitled "APolygon"), but the contents of the window are just plain white. It should be to a red background, and a white polygon should be drawn.. I don't know if I'm doing anything wrong, but it doesn't look like it. I'm sorry I'm unable to give any more OSX specific info.. this is my first mac and I don't have much developer experience on the platform.. Thanks a lot, -carlos

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RE: [HOpenGL] HopenGL on GHC 6.3
by Simon Marlow 16 Jun '04

16 Jun '04

On 15 June 2004 07:14, Shiqi Cao wrote: > Here is the config.log > http://www.haskell.org//pipermail/hopengl/2004-June/000515.html > > I don't know where is log of the configuration. > > After it has been compiled, I set "libexecdir" and "libdir" to the lib > directory. Then I tried ghci, and got the following message, What do you mean by "I set libexecdir..."? Did you follow the normal build procedure, ie. 'make; make install'? Cheers, Simon

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HopenGL on GHC 6.3
by Shiqi Cao 15 Jun '04

15 Jun '04

Hi, Recently, I installed the GHC 6.3 cvs ( ghc-6.3.20040609-src.tar.bz2)which I got from http://www.haskell.org/ghc/dist/current/dist/ I want to have the latest HopenGL, so I did the following autoreconf ./configure --enable-hopengl make all make html make install make install-docs the first question is I can't find OpengGL or HOpenGL in package.conf, the second one is ghc doesn't work well, caos2@shiqicao Haskell $ ghc63 -o hw hw.hs /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.2/../../../../i686-pc-linux-gnu/bin/ld: cannot find -lHShaskell98 collect2: ld returned 1 exit status the HShaskell98 is in the lib/. The following are three conf files, root@shiqicao ghc-6.3 # cat ghc-6.3.20040609.sh #!/bin/sh libexecdir=/usr/lib/ghc-6.3 libdir=$libexecdir GHCBIN="$libexecdir/ghc-6.3.20040609"; TOPDIROPT="-B$libdir"; #! /bin/bash # Mini-driver for GHC exec $GHCBIN $TOPDIROPT ${1+"$@"} root@shiqicao ghc-6.3 # cat ghc-pkg-6.3.20040609.sh #!/bin/sh libexecdir=/usr/lib/ghc-6.3 libdir=$libexecdir GHCPKGBIN="$libexecdir/ghc-pkg.bin"; PKGCONFOPT="-f $libdir/package.conf"; # Mini-driver for ghc-pkg exec $GHCPKGBIN $PKGCONFOPT ${1+"$@"} root@shiqicao ghc-6.3 # cat ghci-6.3.20040609.sh #!/bin/sh libexecdir=/usr/lib/ghc-6.3 libdir=$libexecdir GHCBIN="/usr/lib/ghc-6.3/ghc-6.3.20040609"; TOPDIROPT="-B/usr/lib/ghc-6.3"; #!/bin/bash GHC_CFLAGS="-optc-fno-pic -optc-fno-stack-protector" # Mini-driver for GHCi exec $GHCBIN $TOPDIROPT ${GHC_CFLAGS} --interactive ${1+"$@"} root@shiqicao ghc-6.3 # Regards, Shiqi Cao

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Re: Open GL, GLUT
by Sven Panne 13 Jun '04

13 Jun '04

[ redirected to hopengl mailing list ] Gracjan Polak wrote: > > Hi all, > > I'd like to make some use of OpenGL with Haskell (under Win2000). > Here is some code: > > > module Main where > import Graphics.Rendering.OpenGL.GL > import Graphics.Rendering.OpenGL.GLU > import Graphics.UI.GLUT > > main = do > ver <- get gluVersion > putStrLn ver > > getArgsAndInitialize > fullScreen > wnd <- createWindow "Hello World" > > vertex (Vertex2 (100::GLint) 100) > return () > > Compilation (linking) fails with: > > $ ghc --make openglapp.hs -o openglapp.exe > Chasing modules from: openglapp.hs > Compiling Main ( openglapp.hs, openglapp.o ) > Linking ... > c:/ghc/ghc-6.2/libHSGLUT.a(Initialization__158.o)(.text+0x123):ghc16024.hc: > unde > fined reference to `glutInit@8' > c:/ghc/ghc-6.2/libHSGLUT.a(Window__61.o)(.text+0x33):ghc14736.hc: > undefined refe > rence to `glutFullScreen@0' > c:/ghc/ghc-6.2/libHSGLUT.a(Window__53.o)(.text+0x85):ghc14736.hc: > undefined refe > rence to `glutCreateWindow@4' > > Manually adding -lglut -lglut32 does not help. Libraries libglut32.a and > libglut.a are there, they contain needed symbols but with '_' prepended, > like _glutInit@8. > > Functions from GL and GLU link perfectly. They do even work correctly > when run. Only GLUT ones do not :( > > Has anybody compiled anything for GL recently? Google pointed me only to > some old, not relevant any more, material. > > Am I missing something obvious here? > > GHC 6.2, installer for Window taken from www.haskell.org, Win2000 > Professional. It compiles fine with GHC 6.2.1 on my Win2k box, you might want to update your GHC installation. There have been quite a few bug fixes, so it might be worth it even when you are not using OpenGL/GLUT. Does it work with 6.2 when you add -O? Just curious... Apart from that, there are a few things you should change in your code: * GL/GLU state can only be accessed after you have a rendering context, i.e. after createWindow * fullScreen only works when you have a current window, i.e. after createWindow * Rendering should only be done in the display callback * The vertex call should probably be within a renderPrimitive. Perhaps Sven Panitz' tutorial might help a bit: http://www.tfh-berlin.de/~panitz/hopengl/ A more up-to-date version of the tutorial is available from the fptools CVS repository, but building it requires some unusual tools, BTW. Cheers, S.

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