From sohail at taggedtype.net  Sat Feb  2 22:54:13 2008
From: sohail at taggedtype.net (Sohail Somani)
Date: Sat, 2 Feb 2008 22:54:13 +0000 (UTC)
Subject: [cl-opengl-devel] Translating checker.c
Message-ID: <fo2sak$63g$2@ger.gmane.org>

Hello,

I am trying to translate the checker.c example from the textures chapter:

http://www.sgi.com/products/software/opengl/examples/redbook/source/
checker.c

Unfortunately, the code http://paste.lisp.org/display/55290 does not work 
for some reason. Any ideas?

Thanks!

-- 
Sohail Somani
http://uint32t.blogspot.com



From sohail at taggedtype.net  Sat Feb  2 23:10:16 2008
From: sohail at taggedtype.net (Sohail Somani)
Date: Sat, 2 Feb 2008 23:10:16 +0000 (UTC)
Subject: [cl-opengl-devel] Re: Translating checker.c
References: <fo2sak$63g$2@ger.gmane.org>
Message-ID: <fo2t8o$63g$3@ger.gmane.org>

On Sat, 02 Feb 2008 22:54:13 +0000, Sohail Somani wrote:

> Hello,
> 
> I am trying to translate the checker.c example from the textures
> chapter:
> 
> http://www.sgi.com/products/software/opengl/examples/redbook/source/
> checker.c
> 
> Unfortunately, the code http://paste.lisp.org/display/55290 does not
> work for some reason. Any ideas?
> 
> Thanks!

Specifically, there is no checker board pattern!

-- 
Sohail Somani
http://uint32t.blogspot.com



From mikael.lax at bredband.net  Mon Feb  4 11:21:01 2008
From: mikael.lax at bredband.net (Mikael Lax)
Date: Mon, 4 Feb 2008 12:21:01 +0100
Subject: [cl-opengl-devel] Re: Translating checker.c
In-Reply-To: <fo2t8o$63g$3@ger.gmane.org>
References: <fo2sak$63g$2@ger.gmane.org>
	<fo2t8o$63g$3@ger.gmane.org>
Message-ID: <20080204122101.c9a4d377.mikael.lax@bredband.net>

On Sat, 2 Feb 2008 23:10:16 +0000 (UTC)
Sohail Somani <sohail at taggedtype.net> wrote:

> 
> Specifically, there is no checker board pattern!
> 
> -- 
> Sohail Somani
> http://uint32t.blogspot.com
> 

Hello, the error is that you do not specify a minification filter for the texture. The default value for the min-filter is :nearest-mipmap-linear which is a mipmapped format but you don't specify any mipmaps so texturing will be disabled.

Once the texture is shown you will also see that you're texture coordinates are wrong.
They should be like this for both quads:
(gl:tex-coord 0 0) 
(gl:tex-coord 0 1) 
(gl:tex-coord 1 1) 
(gl:tex-coord 1 0)

Sincerely,
Mikael Lax


From charliemac+cl-opengl at gmail.com  Sat Feb  9 13:14:47 2008
From: charliemac+cl-opengl at gmail.com (Charlie McMackin)
Date: Sat, 9 Feb 2008 22:14:47 +0900
Subject: [cl-opengl-devel] GLUT handling for a mouse wheel
Message-ID: <6e831e4e0802090514o1ea771b1x21c50b64d18c248f@mail.gmail.com>

Having a GLUT window die on me because I accidentally scroll the mouse
wheel down finally drove me mad enough to go track the problem down.
I'm not sure if this is the correct way to do it, but weighing in at
one line sexp it sure feels good. I picked :wheel-down but I guess any
keyword can be put in it's place.

the change: in glut/callbacks.lisp add (:wheel-down -1) to the
mouse-button-state cenum.

Charlie Mac
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From cupe-clopengl at erleuchtet.org  Sat Feb  9 22:02:40 2008
From: cupe-clopengl at erleuchtet.org (Johann Korndoerfer)
Date: Sat, 09 Feb 2008 23:02:40 +0100
Subject: [cl-opengl-devel] Patch for 2d mipmap generation and more mouse
	buttons
Message-ID: <47AE2300.7080207@erleuchtet.org>

Hi

the attached patch does two things:
1) it adds glu:build-2d-mipmaps
2) as suggested earlier this month, more mouse-buttons are now
recognized (:wheel-up, :wheel-down and :button4 to :button7)

i'd be happy to see it applied

cupe
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From charliemac+cl-opengl at gmail.com  Sun Feb 10 23:19:14 2008
From: charliemac+cl-opengl at gmail.com (Charlie McMackin)
Date: Mon, 11 Feb 2008 08:19:14 +0900
Subject: [cl-opengl-devel] Patch for 2d mipmap generation and more mouse
	buttons
In-Reply-To: <47AE2300.7080207@erleuchtet.org>
References: <47AE2300.7080207@erleuchtet.org>
Message-ID: <6e831e4e0802101519s74ebc09cw928ca80a3a5fa908@mail.gmail.com>

 I can't speak for the 2D texture section of your patch but none of
the new enums in callbacks work for me.

> hunk ./glut/callbacks.lisp 183
> -  :right-button)
> +  :right-button
> +  :wheel-up
> +  :wheel-down
> +  :button4
> +  :button5
> +  :button6
> +  :button7)
> }

I tested with code like:

(defmethod glut:mouse ((w gl-window) button state x y)
  (declare (ignore x y))
  (format t "~&Button value is ~a ~%Pressed value is ~a~%" button state))
(defmethod glut:mouse-wheel ((w gl-window) button pressed x y)
  (declare (ignore x y))
  (format t "~&Button value is ~a ~%Pressed value is ~a~%" button pressed))


From cupe-clopengl at erleuchtet.org  Tue Feb 12 18:31:35 2008
From: cupe-clopengl at erleuchtet.org (Johann Korndoerfer)
Date: Tue, 12 Feb 2008 19:31:35 +0100
Subject: [cl-opengl-devel] Patch for 2d mipmap generation and more mouse
	buttons
In-Reply-To: <6e831e4e0802101519s74ebc09cw928ca80a3a5fa908@mail.gmail.com>
References: <47AE2300.7080207@erleuchtet.org>
	<6e831e4e0802101519s74ebc09cw928ca80a3a5fa908@mail.gmail.com>
Message-ID: <47B1E607.70802@erleuchtet.org>

>  I can't speak for the 2D texture section of your patch but none of
> the new enums in callbacks work for me.

> (defmethod glut:mouse ((w gl-window) button state x y)
>   (declare (ignore x y))
>   (format t "~&Button value is ~a ~%Pressed value is ~a~%" button state))


after pasting your glut:mouse into my project, i get:

Button value is WHEEL-DOWN
Pressed value is DOWN
Button value is WHEEL-DOWN
Pressed value is UP

when moving the wheel downward. and:

Button value is BUTTON6
Pressed value is DOWN

when pressing down one of the weird buttons on my mouse. as it should be.

i use opengl 2.1.1 on linux with freeglut 2.4.0.
the new enums are not to be found in my freeglut_std.h along with the
other ones, which makes it kind of odd that they work for me. sdl uses
buttons 4 and 5 as wheel-up/down, too, which is why i tried this in the
first place. they seem not to be "officially" supported on windows
either as there is a patch for a windows port of glut to make it
mousewheel-aware at all at http://www.realmtech.net/opengl/glut.php ,
providing the very same enums.

i found several references on the net indicating the widespread use of
4 and 5 for the wheel and think it is safe to just add the enums to the
bindings. those with an older version of glut seem to not have wheel
functionality anyway and won't be hurt by this.


From charliemac+cl-opengl at gmail.com  Tue Feb 12 23:00:20 2008
From: charliemac+cl-opengl at gmail.com (Charlie McMackin)
Date: Wed, 13 Feb 2008 08:00:20 +0900
Subject: [cl-opengl-devel] Patch for 2d mipmap generation and more mouse
	buttons
In-Reply-To: <47B1E607.70802@erleuchtet.org>
References: <47AE2300.7080207@erleuchtet.org>
	<6e831e4e0802101519s74ebc09cw928ca80a3a5fa908@mail.gmail.com>
	<47B1E607.70802@erleuchtet.org>
Message-ID: <6e831e4e0802121500s4721f40ay4bc6b1f16ec528d9@mail.gmail.com>

> i use opengl 2.1.1 on linux with freeglut 2.4.0.
> the new enums are not to be found in my freeglut_std.h along with the
> other ones, which makes it kind of odd that they work for me. sdl uses
> buttons 4 and 5 as wheel-up/down, too, which is why i tried this in the
> first place. they seem not to be "officially" supported on windows
> either as there is a patch for a windows port of glut to make it
> mousewheel-aware at all at http://www.realmtech.net/opengl/glut.php ,
> providing the very same enums.

This is interesting. Are you sure your system is configured to use
freeglut? I ask only because the windows glut you link to is
definitely not freeglut. My freeglut-2.4.0 provides a libglut-3.8.0.so
lib file. Second are you using cl-opengl-thomas? I queried my mice
with xinput and the wheel is mapped to buttons 4 and 5 however  my
system only provides the enums in the freeglut headers


charlie mac


From cupe-clopengl at erleuchtet.org  Wed Feb 13 01:48:18 2008
From: cupe-clopengl at erleuchtet.org (Johann Korndoerfer)
Date: Wed, 13 Feb 2008 02:48:18 +0100
Subject: [cl-opengl-devel] Patch for 2d mipmap generation and more mouse
	buttons
In-Reply-To: <6e831e4e0802121500s4721f40ay4bc6b1f16ec528d9@mail.gmail.com>
References: <47AE2300.7080207@erleuchtet.org>	
	<6e831e4e0802101519s74ebc09cw928ca80a3a5fa908@mail.gmail.com>	
	<47B1E607.70802@erleuchtet.org>
	<6e831e4e0802121500s4721f40ay4bc6b1f16ec528d9@mail.gmail.com>
Message-ID: <47B24C62.7020400@erleuchtet.org>


> Are you sure your system is configured to use freeglut?

yes, i am definitely using the libglut-3.8.0.so of freeglut-2.4.0 (at
least that is what lsof tells me).

> Second are you using cl-opengl-thomas?

yep, like everybody else, i guess. actually i didn't test the patch
against the main branch. maybe i should have said so in my initial post :)

> I queried my mice
> with xinput and the wheel is mapped to buttons 4 and 5 however  my
> system only provides the enums in the freeglut headers

is your graphics card an ati card by any chance?
maybe the proprietary nvidia driver i use is handling the mouse events
in a different way than other drivers and freeglut just passes along
what it gets? i don't know anything about the relationships of the
graphics card driver and the glu(t) and opengl libraries, so this is
just a guess. but from what i've seen of the linux ati driver so far it
wouldn't suprise me if it dropped all but the first three of the mouse
buttons.


From charliemac+cl-opengl at gmail.com  Wed Feb 13 02:28:11 2008
From: charliemac+cl-opengl at gmail.com (Charlie McMackin)
Date: Wed, 13 Feb 2008 11:28:11 +0900
Subject: [cl-opengl-devel] Patch for 2d mipmap generation and more mouse
	buttons
In-Reply-To: <47B24C62.7020400@erleuchtet.org>
References: <47AE2300.7080207@erleuchtet.org>
	<6e831e4e0802101519s74ebc09cw928ca80a3a5fa908@mail.gmail.com>
	<47B1E607.70802@erleuchtet.org>
	<6e831e4e0802121500s4721f40ay4bc6b1f16ec528d9@mail.gmail.com>
	<47B24C62.7020400@erleuchtet.org>
Message-ID: <6e831e4e0802121828r2d561ee4qedaa7ee02a46fd5a@mail.gmail.com>

Yes I do have an ATI card but GLUT uses X for mouse handling so it
shouldn't matter. I've since taken a brief look at the freeglut code
and it looks like they have quick-hackish ways of detecting mouse
features. Either that or freeglut can't handle my slightly bleeding
edge Xorg-server. Anyway, I think I've hit the ceiling with glut with
what I want to do in my app and should probably bite the bullet and
retry cells+togl or cells+gtk. If only cl-clx worked with cl-opengl.
sigh.


From luismbo at gmail.com  Wed Feb 13 02:29:48 2008
From: luismbo at gmail.com (=?ISO-8859-1?Q?Lu=EDs_Oliveira?=)
Date: Wed, 13 Feb 2008 02:29:48 +0000
Subject: [cl-opengl-devel] Patch for 2d mipmap generation and more mouse
	buttons
In-Reply-To: <6e831e4e0802101519s74ebc09cw928ca80a3a5fa908@mail.gmail.com>
References: <47AE2300.7080207@erleuchtet.org>
	<6e831e4e0802101519s74ebc09cw928ca80a3a5fa908@mail.gmail.com>
Message-ID: <391f79580802121829u4b23a218lf1a96269bff4c258@mail.gmail.com>

On 10/02/2008, Charlie McMackin <charliemac+cl-opengl at gmail.com> wrote:
> (defmethod glut:mouse ((w gl-window) button state x y)
>   (declare (ignore x y))
>   (format t "~&Button value is ~a ~%Pressed value is ~a~%" button state))
> (defmethod glut:mouse-wheel ((w gl-window) button pressed x y)
>   (declare (ignore x y))
>   (format t "~&Button value is ~a ~%Pressed value is ~a~%" button pressed))

I looked at freeglut's source and it seems that whenever the
mouse-wheel callback is deactivated, mouse is called instead. And the
'button' argument (and the state/pressed argument as well, IIRC)
differs in each case. So if you want to get those new enums, use
glut:mouse only, not glut-mouse-wheel.

-- 
Lu?s Oliveira
http://student.dei.uc.pt/~lmoliv/


From luismbo at gmail.com  Wed Feb 13 13:13:31 2008
From: luismbo at gmail.com (=?ISO-8859-1?Q?Lu=EDs_Oliveira?=)
Date: Wed, 13 Feb 2008 13:13:31 +0000
Subject: [cl-opengl-devel] Patch for 2d mipmap generation and more mouse
	buttons
In-Reply-To: <6e831e4e0802121838q81dc758if34c7587b2aea973@mail.gmail.com>
References: <47AE2300.7080207@erleuchtet.org>
	<6e831e4e0802101519s74ebc09cw928ca80a3a5fa908@mail.gmail.com>
	<391f79580802121829u4b23a218lf1a96269bff4c258@mail.gmail.com>
	<6e831e4e0802121838q81dc758if34c7587b2aea973@mail.gmail.com>
Message-ID: <391f79580802130513r701e1a3fu15822e9127d783ec@mail.gmail.com>

On 13/02/2008, Charlie McMackin <charliemac at gmail.com> wrote:
> I'll give it a try, but it seems that no one else is hitting the error
> on wheel-down due to -1 not be enumerated in mouse-button-state
> either. (see other thread where I sent patch) Leads me to be  more
> suspect of my set-up.

IIRC, I get that weird -1 when using the glut:mouse-wheel event.

-- 
Lu?s Oliveira
http://student.dei.uc.pt/~lmoliv/


From charliemac+cl-opengl at gmail.com  Wed Feb 13 13:31:43 2008
From: charliemac+cl-opengl at gmail.com (Charlie McMackin)
Date: Wed, 13 Feb 2008 22:31:43 +0900
Subject: [cl-opengl-devel] Patch for 2d mipmap generation and more mouse
	buttons
In-Reply-To: <391f79580802130513r701e1a3fu15822e9127d783ec@mail.gmail.com>
References: <47AE2300.7080207@erleuchtet.org>
	<6e831e4e0802101519s74ebc09cw928ca80a3a5fa908@mail.gmail.com>
	<391f79580802121829u4b23a218lf1a96269bff4c258@mail.gmail.com>
	<6e831e4e0802121838q81dc758if34c7587b2aea973@mail.gmail.com>
	<391f79580802130513r701e1a3fu15822e9127d783ec@mail.gmail.com>
Message-ID: <6e831e4e0802130531t4c77b9a4k621003f830f6b774@mail.gmail.com>

> IIRC, I get that weird -1 when using the glut:mouse-wheel event.
>

You were right, removing the mouse-wheel method allowed me to access
the new enums with the normal mouse method. Feels much nicer as well.

Handling the -1 with a different keyword name than I provided might
still be a good idea for the sorry that stumble upon the
glut:mouse-wheel trap :)

cm


From sean.charles at objitsu.com  Tue Feb 19 13:31:49 2008
From: sean.charles at objitsu.com (Sean Charles)
Date: Tue, 19 Feb 2008 13:31:49 +0000
Subject: [cl-opengl-devel] 'Best' GL bindings?
In-Reply-To: <6e831e4e0802090514o1ea771b1x21c50b64d18c248f@mail.gmail.com>
References: <6e831e4e0802090514o1ea771b1x21c50b64d18c248f@mail.gmail.com>
Message-ID: <BD1695A4-9766-46A7-B262-CC20E88D39B5@objitsu.com>

Hi,

What's the current 'best' set of bindings for OpenGL on an intel iMac  
please ?  I have seen the 'thomas' fork mentioned, what advantages  
does this offer ?

I've used OpenGL and lisp but a long time ago and I want to get back  
into it!

Cheers,
Sean.



From luismbo at gmail.com  Tue Feb 19 13:49:08 2008
From: luismbo at gmail.com (=?ISO-8859-1?Q?Lu=EDs_Oliveira?=)
Date: Tue, 19 Feb 2008 13:49:08 +0000
Subject: [cl-opengl-devel] 'Best' GL bindings?
In-Reply-To: <BD1695A4-9766-46A7-B262-CC20E88D39B5@objitsu.com>
References: <6e831e4e0802090514o1ea771b1x21c50b64d18c248f@mail.gmail.com>
	<BD1695A4-9766-46A7-B262-CC20E88D39B5@objitsu.com>
Message-ID: <391f79580802190549h4d79c53cp570070c74608af7c@mail.gmail.com>

On 19/02/2008, Sean Charles <sean.charles at objitsu.com> wrote:
> What's the current 'best' set of bindings for OpenGL on an intel iMac
> please ?  I have seen the 'thomas' fork mentioned, what advantages
> does this offer ?

I sincerely don't remember all the changes that went into that branch
anymore but basically that's where all the patches have been going to.
One advantage that comes to mind is that it works with recent versions
CFFI.

Charlie brought up the issue of merging said branch but there wasn't
much reaction so I've just merged it. It was generating way to much
needless confusion. (I kept a copy of the previous main branch at
<http://common-lisp.net/project/cl-opengl/cl-opengl-old> and if there
are any objections to what's been merged I'm sure we can work them
out.)

I'll apply the other patches Charlie and Johann sent ASAP.

In conclusion, just grab the main branch:
darcs get http://common-lisp.net/project/cl-opengl/darcs/cl-opengl

-- 
Lu?s Oliveira
http://student.dei.uc.pt/~lmoliv/


From sean.charles at objitsu.com  Tue Feb 19 14:12:04 2008
From: sean.charles at objitsu.com (Sean Charles)
Date: Tue, 19 Feb 2008 14:12:04 +0000
Subject: [cl-opengl-devel] 'Best' GL bindings?
In-Reply-To: <391f79580802190549h4d79c53cp570070c74608af7c@mail.gmail.com>
References: <6e831e4e0802090514o1ea771b1x21c50b64d18c248f@mail.gmail.com>
	<BD1695A4-9766-46A7-B262-CC20E88D39B5@objitsu.com>
	<391f79580802190549h4d79c53cp570070c74608af7c@mail.gmail.com>
Message-ID: <B3BD2B82-4F4F-4ADC-A754-FBBA9B1BB0EE@objitsu.com>

Thanks!
I've just done a clean install of CLISP 2.43 from MacPorts and got  
ASDF up and running...
Thanks again!
:)

On 19 Feb 2008, at 13:49, Lu?s Oliveira wrote:

> On 19/02/2008, Sean Charles <sean.charles at objitsu.com> wrote:
>> What's the current 'best' set of bindings for OpenGL on an intel iMac
>> please ?  I have seen the 'thomas' fork mentioned, what advantages
>> does this offer ?
>
> I sincerely don't remember all the changes that went into that branch
> anymore but basically that's where all the patches have been going to.
> One advantage that comes to mind is that it works with recent versions
> CFFI.
>
> Charlie brought up the issue of merging said branch but there wasn't
> much reaction so I've just merged it. It was generating way to much
> needless confusion. (I kept a copy of the previous main branch at
> <http://common-lisp.net/project/cl-opengl/cl-opengl-old> and if there
> are any objections to what's been merged I'm sure we can work them
> out.)
>
> I'll apply the other patches Charlie and Johann sent ASAP.
>
> In conclusion, just grab the main branch:
> darcs get http://common-lisp.net/project/cl-opengl/darcs/cl-opengl
>
> -- 
> Lu?s Oliveira
> http://student.dei.uc.pt/~lmoliv/
>