* [Bug 25898] New: glEvalPoint within display list fails assertion in vbo_save_api.c
@ 2010-01-05 6:14 bugzilla-daemon
2010-01-05 17:15 ` [Bug 25898] " bugzilla-daemon
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: bugzilla-daemon @ 2010-01-05 6:14 UTC (permalink / raw
To: dri-devel
http://bugs.freedesktop.org/show_bug.cgi?id=25898
Summary: glEvalPoint within display list fails assertion in
vbo_save_api.c
Product: DRI
Version: XOrg 6.7.0
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: libGL
AssignedTo: dri-devel@lists.sourceforge.net
ReportedBy: dnschneid@gmail.com
Created an attachment (id=32454)
--> (http://bugs.freedesktop.org/attachment.cgi?id=32454)
Code demonstrating the assert failure.
If this is the wrong place to report this, please point me in the right
direction.
Recently I've been working on a game, and a bit of code that worked fine in
nvidia's proprietary libGL implementation fails an assertion in the mesa
version.
Basically, using glEvalPoint2 inside of a glBegin/glEnd block all inside a
glNewList/glEndList block seemingly has no effect (nothing is drawn when the
display list is called). Putting a glVertex3f call in the same glBegin/End
block along with the calls to glEvalPoint causes a failed assertion:
vbo/vbo_save_api.c:503: _save_upgrade_vertex: Assertion `save->copied.nr == 0'
failed.
Using glVertex with no calls to glEvalPoint draws properly, and using
glEvalMesh instead of glBegin/glEvalPoint/glEnd works properly as well.
Again, all forms of the code work fine on nvidia's proprietary drivers.
Attached is a pretty short bit of C that demonstrates the error. Comment out
the defines at the top of the page to use the glEvalPoint code that causes the
assert fail. The code uses SDL to set up the window and rendering context.
With both defines enabled, glEvalMesh is used and a box should be drawn in the
center of the screen.
Disabling the WORK_PLEASE define will use glEvalPoint, which draws nothing
despite drawing the same box on nvidia's implementation.
Disabling both WORK_PLEASE and DONT_CRASH will insert a glVertex call that
causes the assert error. Again, running on nvidia's proprietary implementation
draws a box.
I hope I've supplied sufficient detail; ask if you need any more information.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 25898] glEvalPoint within display list fails assertion in vbo_save_api.c
2010-01-05 6:14 [Bug 25898] New: glEvalPoint within display list fails assertion in vbo_save_api.c bugzilla-daemon
@ 2010-01-05 17:15 ` bugzilla-daemon
2010-01-05 18:24 ` bugzilla-daemon
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2010-01-05 17:15 UTC (permalink / raw
To: dri-devel
http://bugs.freedesktop.org/show_bug.cgi?id=25898
Roland Scheidegger <sroland@tungstengraphics.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|libGL |Mesa core
Product|DRI |Mesa
Version|XOrg 6.7.0 |unspecified
--- Comment #1 from Roland Scheidegger <sroland@tungstengraphics.com> 2010-01-05 09:15:59 PST ---
This looks rather like a mesa bug. What mesa version is this (glxinfo).
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* [Bug 25898] glEvalPoint within display list fails assertion in vbo_save_api.c
2010-01-05 6:14 [Bug 25898] New: glEvalPoint within display list fails assertion in vbo_save_api.c bugzilla-daemon
2010-01-05 17:15 ` [Bug 25898] " bugzilla-daemon
@ 2010-01-05 18:24 ` bugzilla-daemon
2011-03-02 12:14 ` [Bug 25898] glEvalPoint causes glEnd to throw GL_INVALID_OPERATION bugzilla-daemon
2015-05-06 19:03 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2010-01-05 18:24 UTC (permalink / raw
To: dri-devel
http://bugs.freedesktop.org/show_bug.cgi?id=25898
--- Comment #2 from David <dnschneid@gmail.com> 2010-01-05 10:24:48 PST ---
glxinfo returns OpenGL 1.4 Mesa 7.6
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 25898] glEvalPoint causes glEnd to throw GL_INVALID_OPERATION
2010-01-05 6:14 [Bug 25898] New: glEvalPoint within display list fails assertion in vbo_save_api.c bugzilla-daemon
2010-01-05 17:15 ` [Bug 25898] " bugzilla-daemon
2010-01-05 18:24 ` bugzilla-daemon
@ 2011-03-02 12:14 ` bugzilla-daemon
2015-05-06 19:03 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2011-03-02 12:14 UTC (permalink / raw
To: dri-devel
https://bugs.freedesktop.org/show_bug.cgi?id=25898
Marek Olšák <maraeo@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|glEvalPoint within display |glEvalPoint causes glEnd to
|list fails assertion in |throw GL_INVALID_OPERATION
|vbo_save_api.c |
Version|unspecified |git
--- Comment #3 from Marek Olšák <maraeo@gmail.com> 2011-03-02 04:14:11 PST ---
The assertion failure is gone. The only remaining issue is the error on glEnd.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 25898] glEvalPoint causes glEnd to throw GL_INVALID_OPERATION
2010-01-05 6:14 [Bug 25898] New: glEvalPoint within display list fails assertion in vbo_save_api.c bugzilla-daemon
` (2 preceding siblings ...)
2011-03-02 12:14 ` [Bug 25898] glEvalPoint causes glEnd to throw GL_INVALID_OPERATION bugzilla-daemon
@ 2015-05-06 19:03 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2015-05-06 19:03 UTC (permalink / raw
To: dri-devel
[-- Attachment #1.1: Type: text/plain, Size: 433 bytes --]
https://bugs.freedesktop.org/show_bug.cgi?id=25898
marius predut <marius.predut@intel.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|dri-devel@lists.freedesktop |marius.predut@intel.com
|.org |
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2010-01-05 6:14 [Bug 25898] New: glEvalPoint within display list fails assertion in vbo_save_api.c bugzilla-daemon
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2010-01-05 18:24 ` bugzilla-daemon
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