Bugs item #1544507, was opened at 2006-08-22 13:47
Message generated for change (Comment added) made by castano
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Category: mesa-core
Group: Fatal Error
Status: Open
Resolution: None
Priority: 5
Submitted By: Ignacio Casta�o (castano)
Assigned to: Nobody/Anonymous (nobody)
Summary: crash due to mismatch program target
Initial Comment:
In program.c _mesa_BindProgram, when an error occurs
the function returns immediately leaving as current a
possibly deleted program. This crashes when the
current program has actually been deleted. Attached
is a quick patch that hopefully fixes the problem.
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>Comment By: Ignacio Casta�o (castano)
Date: 2006-08-25 00:11
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Sorry, I should have mentioned that I was using the latest beta:
http://developer.nvidia.com/object/cg-toolkit-15beta2.html
In any case I think you can also make that work by replacing
"gl_ModelViewMatrixInverse" with "view".
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Comment By: Brian Paul (brianp)
Date: 2006-08-24 21:20
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Is a particular version of Cg required?
With Cg 1.4.1 I get:
./cgtest
Cg error: CG ERROR : The compile returned an error.
(197) : error C1008: undefined variable
"gl_ModelViewMatrixInverse"
(197) : error C1011: cannot index a non-array value
(197) : error C1031: swizzle mask element not present in
operand "xyz"
(197) : error C1008: undefined variable
"gl_ModelViewMatrixInverse"
(197) : error C1011: cannot index a non-array value
(197) : error C1031: swizzle mask element not present in
operand "xyz"
(205) : error C1008: undefined variable
"gl_ModelViewMatrixInverse"
(205) : error C1033: cast not allowed
(205) : error C1115: unable to find compatible overloaded
function "mul"
(205) : error C1008: undefined variable
"gl_ModelViewMatrixInverse"
(205) : error C1033: cast not allowed
(205) : error C1115: unable to find compatible overloaded
function "mul"
Unable to create effect!
If I change the code to load cgtest.cgfx instead of
raytracer.cgfx I get a red window and pressing the space bar
does not cause a crash.
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Comment By: Ignacio Casta�o (castano)
Date: 2006-08-24 11:52
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I've attached the test, press space after running it and it
should crash inside of BindProgram. Let me know if you have
any problem reproducing it.
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Comment By: Ignacio Casta�o (castano)
Date: 2006-08-24 11:51
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I've attached the test, press space after running it and it
should crash inside of BindProgram. Let me know if you have
any problem reproducing it.
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Comment By: Brian Paul (brianp)
Date: 2006-08-23 16:30
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A Cg program would be OK.
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Comment By: Ignacio Casta�o (castano)
Date: 2006-08-23 02:29
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I cannot do that easily. The error is caused by the Cg
runtime when binding a NV fragment shader after binding an
ARB fragment shader. I'm not sure why the target mismatch
error is produced, might be an incorrect behaviour of Cg,
but mesa should not crash because of that. Is it ok if the
example depends on Cg?
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Comment By: Brian Paul (brianp)
Date: 2006-08-23 01:18
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I'm not sure I see how this can happen. Can you provide a
simple GLUT program that illustrates the problem?
BTW, please submit future bug reports on freedesktop.org
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