Felix Kühling wrote:
On Wed, 29 Jan 2003 07:59:30 -0700
Brian Paul <[EMAIL PROTECTED]> wrote:
Since these functions are globally exported, it might be worth it to
write a quick test that calls the various
_transform_normalize_normals functions to make sure that they all
produces the same (or close enough) results.
And:
_transform_normalize_normals_no_rot
_transform_rescale_normals_no_rot
_transform_rescale_normals
_transform_normals_no_rot
_transform_normals
_normalize_normals
_rescale_normals
These should be tested too, while we're at it.
Agreed.
Brian: If such tests do get written, where should they live in the tree?
There's a number of test routines in the src/math/m_debug_*.c files. I think
that would be the place to add more if needed.
It's all there. Even benchmarking is included. It just needs to be
recompiled with DEBUG and RUN_DEBUG_BENCHMARK defined.
I downloaded Mesa CVS and configured it with --enable-debug and
--enable-profile. When I started a GL app with the correct library path
I got this:
cpu vendor: AuthenticAMD
cpu name: AMD Duron(tm) processor
MMX cpu detected.
3DNow! cpu detected.
-----------------------------
(i = 0, j = 0)
1.177931 -0.033552 [ratio = -2.848425e-02 - 29 bit missed]
0.841573 0.728316 [ratio = 8.654217e-01 - 21 bit missed]
0.735570 -0.684420 [ratio = -9.304624e-01 - 25 bit missed]
Mesa implementation error: _mesa_normal_tab[0][NORM_NORMALIZE] failed test (3DNow!)
Please report to the Mesa bug database at www.mesa3d.org
Mesa: Mesa DEBUG build Jan 29 2003 21:43:51
A patch to fix this is attached. Basically the same kind of problem as
before. Now it reports no more problems :) in any of the math functions
tested on my Duron. This should be about everything except SSE.
I've checked in the patch to the Mesa and DRI trees. Thanks!
-Brian
-------------------------------------------------------
This SF.NET email is sponsored by:
SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See!
http://www.vasoftware.com
_______________________________________________
Dri-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/dri-devel
