Bug 11016

Summary:	glGetVertexAttribivARB(0, GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB, ...) generates GL_INVALID_ENUM with indirect rendering
Product:	Mesa	Reporter:	Bruce Merry <bmerry>
Component:	GLX	Assignee:	mesa-dev
Status:	RESOLVED MOVED	QA Contact:
Severity:	normal
Priority:	medium
Version:	6.5
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	Testcase illustrating the bug

Description Bruce Merry 2007-05-21 06:54:24 UTC

The summary describes the error; I get the same error with other attribute numbers and also GL_VERTEX_ATTRIB_ARRAY_NORMALIZED.

Tracing some code, it appears that indirect_table.c in xorg-server (generated by glX_server_table.py, according to the comment) may be the culprit. It maps GLX opcode 1303 to glGetVertexAttribivNV. The NV and ARB variants use the same GLX opcode, but the NV variant does not support the _ENABLED or _NORMALIZED queries.

I've written a trivial program to illustrate the bug. I'll attach it as soon as I've had an opportunity to restart X in order to test it.

Comment 1 Bruce Merry 2007-05-22 00:28:14 UTC

Created attachment 10068 [details]
Testcase illustrating the bug

It will print "invalid enumerant" if the bug is present, "no error" once it is fixed. Requires GLUT.

Comment 2 GitLab Migration User 2019-09-18 17:11:04 UTC

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