Bug 459

Summary:	Shader compilation fails with caps.setStencilBits(8) set
Product:	[JogAmp] Jogl	Reporter:	Wade Walker <wwalker3>
Component:	opengl	Assignee:	Sven Gothel <sgothel>
Status:	VERIFIED FIXED
Severity:	normal
Priority:	---
Version:	2
Hardware:	pc_x86_64
OS:	windows
Type:	---	SCM Refs:	8adc04788a6d9dd44de5a4636b46d14dbb70b799 e2040ada5a94b466ba95e84a497290c069d377bb
Workaround:	---

Description Wade Walker 2011-01-16 21:20:50 CET

On Windows, shader compilation fails if we set caps.setStencilBits(8). Setting caps.setSampleBuffers(true) fixes the problem, as does removing the stencil bit setting.

Created unit test, confirmed failure on Windows and pass on Linux. Submitting pull request for unit test soon, after preliminary debugging.

Comment 1 Wade Walker 2011-01-16 22:49:00 CET

Submitted pull request for failing JUnit test case at  https://github.com/sgothel/jogl/pull/19. The original report of this bug was on the forum at http://jogamp.762907.n3.nabble.com/JOGL2-GLCapabilities-Windows-td2153961.html.

The problem seems to be in the capabilities choosing code, so I'll wait for your next checkin before digging in too deep.

Comment 2 Sven Gothel 2011-02-02 21:30:25 CET

merged test, fixed by GLCapabilities change 8adc04788a6d9dd44de5a4636b46d14dbb70b799
test passed in 280

Comment 3 Sven Gothel 2011-02-05 02:58:39 CET

still exists on NV/Win7 .. fixing now

Comment 4 Sven Gothel 2011-02-05 04:04:31 CET

commit e2040ada5a94b466ba95e84a497290c069d377bb
Author: Sven Gothel <sgothel@jausoft.com>
Date:   Sat Feb 5 04:03:51 2011 +0100

    Fix bug #459 NV/Win7 PDF/caps selection
    
    Scenario
      - NV / Win7 driver version 266.58's
      - Caps: on-scr, rgba 8/8/8/0, accum-rgba 0/0/0/0, dp/st/ms: 16/8/0, dbl, mono
    
    The above 'wglChoosePixelFormatARB' impl returns an array of pixelformats,
    where the 1st entry is not hardware accelerated!
    This should be considered a bug in NV's driver, since the array should return
    a list ordered from 'best' to 'worst'.
    
    Workaround trying explicit hw acceleration 1st, then generic, then software.