help with glfw seg-fault

briand＠aracnet.com

26 May 2015 26 May '15

1:19 a.m.

Hi, GLFW.swapBuffers w is the culprit. Not sure where to go from there. That's a pretty low level failure. Any suggestions. Brian

Show replies by date

Daniel P. Wright

26 May 26 May

1:34 a.m.

Hi Brian, Have you checked for / output any GL errors that happen before you call swapBuffers? I have a function printErrors (as defined here http://dpwright.com/posts/2015/03/25/the-haskell-gl-package/#error-handling-... ) which I scatter around when things go wrong to try and find the root cause... -Dani 2015/05/26 14:19、のメッセージ:

...

Hi,

GLFW.swapBuffers w

is the culprit.

Not sure where to go from there.

That's a pretty low level failure.

Any suggestions.

Brian _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe

briand＠aracnet.com

29 May 29 May

12:18 a.m.

On Tue, 26 May 2015 14:34:16 +0900 "Daniel P. Wright" wrote:

...

Hi Brian,

Have you checked for / output any GL errors that happen before you call swapBuffers? I have a function printErrors (as defined here http://dpwright.com/posts/2015/03/25/the-haskell-gl-package/#error-handling-... ) which I scatter around when things go wrong to try and find the root cause...

+list glGetErrors is in the openglraw package but not opengl, which is kind of weird. on your web page: GL_NO_ERROR should be gl_NO_ERROR and sadly, i put in the getErrors function and i'm getting the empty list right before it segfaults. Brian

briand＠aracnet.com

12:32 a.m.

On Tue, 26 May 2015 14:34:16 +0900 "Daniel P. Wright" wrote:

...

Hi Brian,

Have you checked for / output any GL errors that happen before you call swapBuffers? I have a function printErrors (as defined here http://dpwright.com/posts/2015/03/25/the-haskell-gl-package/#error-handling-... ) which I scatter around when things go wrong to try and find the root cause...

bug report! m@(~(Just w)) <- createWindow 400 400 "Title" Nothing Nothing when (isNothing m) (error "Couldn't create window!") GLFW.makeContextCurrent m ^^^^^^^^^^^^^^^^^^^^^^^^^ then no seg-faults. Brian

Daniel P. Wright

1:58 a.m.

Ah, yeah, that blog post I linked is using the "gl" package rather than the "OpenGL"/"OpenGLRaw" packages, so some of the names of things are a bit different. Glad you got it sorted in the end! 2015-05-29 13:32 GMT+09:00 :

...

On Tue, 26 May 2015 14:34:16 +0900 "Daniel P. Wright" wrote:

...
Hi Brian,

Have you checked for / output any GL errors that happen before you call swapBuffers? I have a function printErrors (as defined here http://dpwright.com/posts/2015/03/25/the-haskell-gl-package/#error-handling-... ) which I scatter around when things go wrong to try and find the root cause...

bug report!

m@(~(Just w)) <- createWindow 400 400 "Title" Nothing Nothing when (isNothing m) (error "Couldn't create window!")

GLFW.makeContextCurrent m ^^^^^^^^^^^^^^^^^^^^^^^^^

then no seg-faults.

Brian

3645

Age (days ago)

3648

Last active (days ago)

List overview

Download

4 comments

2 participants

participants (2)

briand＠aracnet.com
Daniel P. Wright