Bug 29488

Summary:	[patch] MesaGLUT needs to support GLX_ARB_multisample
Product:	Mesa	Reporter:	Nigel Stewart <nstewart>
Component:	GLUT	Assignee:	mesa-dev
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	medium	CC:	nstewart
Version:	7.6
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	Diff w.r.t MesaGlut 7.8.2

Description Nigel Stewart 2010-08-10 09:47:50 UTC

Created attachment 37772 [details]
Diff w.r.t MesaGlut 7.8.2

In glut_dstr.c there is logic based on GLX_SGIS_multisample that also ought to support the ARB version: GLX_ARB_multisample.

Recent Nvidia drivers don't seem to support the SGIS extension, but _do_ support the ARB extension.

Tested with the following GLUT call on Linux:

glutInitDisplayString("rgb double depth samples~4");

Without the patch glutCreateWindow fails.

Comment 1 Nigel Stewart 2010-08-10 10:09:28 UTC

Some more observation in support of this patch:

Note that glut_win.c already does support GLX_ARB_multisample.

However, glut_overlay doesn't seem to.

Comment 2 Brian Paul 2010-08-10 16:30:16 UTC

Thanks.  I've applied your patch and updated glut_overlay.c too.
Commit 6768afbe9fb4cb2324317f460230ebbbd1e0e295

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