[Piglit] [PATCH v5 2/3] arb_shader_precision: add framework for calculating tolerances for complex functions
Ilia Mirkin
imirkin at alum.mit.edu
Fri Apr 3 14:31:02 PDT 2015
On Fri, Apr 3, 2015 at 5:00 PM, Micah Fedke <micah.fedke at collabora.co.uk> wrote:
> - update mako templates to support vectors of tolerances
>
> ---
> generated_tests/gen_shader_precision_tests.py | 138 +++++++++++++++++----
> .../templates/gen_shader_precision_tests/fs.mako | 62 +++++----
> .../templates/gen_shader_precision_tests/gs.mako | 55 ++++----
> .../templates/gen_shader_precision_tests/vs.mako | 55 ++++----
> 4 files changed, 217 insertions(+), 93 deletions(-)
>
> diff --git a/generated_tests/gen_shader_precision_tests.py b/generated_tests/gen_shader_precision_tests.py
> index 6c011a3..bef1459 100644
> --- a/generated_tests/gen_shader_precision_tests.py
> +++ b/generated_tests/gen_shader_precision_tests.py
> @@ -25,7 +25,7 @@
> """Generate a set of shader_runner tests for overloaded versions of every
> built-in function specified in arb_shader_precision, based on the test
> vectors computed by builtin_function.py, and structured according to the mako
> - templates in shader_precision_templates/.
> + templates in templates/gen_shader_precision_tests.
>
> The vertex, geometry, and fragment shader types are exercised by each test.
> In all cases, the inputs to the built-in functions come from uniforms, so
> @@ -43,20 +43,26 @@
> only the largest error value to the tolerance. This accounts for cases where
> error varies among the elements of a vec or mat result.
>
> + This program updates the tolerance values in the test vectors with tolerances
> + sourced from the GLSL spec (v4.5) and adds a few new tests as well.
> +
> This program outputs, to stdout, the name of each file it generates.
> """
>
> from __future__ import print_function, division, absolute_import
> from builtin_function import *
> -import os
> +import os
> import numpy
> +import struct
>
> import six
> from six.moves import range
>
> from templates import template_file
>
> -tolerances = {'pow': 16.0,
> +
> +
> +tolerances = {'pow': 16.0,
> 'exp': 3.0,
> 'exp2': 3.0,
> 'log': 3.0,
> @@ -67,14 +73,87 @@ tolerances = {'pow': 16.0,
> 'op-assign-div': 2.5,
> }
>
> -trig_builtins = ('sin', 'cos', 'tan',
> - 'asin', 'acos', 'atan',
> - 'sinh', 'cosh', 'tanh',
> - 'asinh', 'acosh', 'atanh')
> +shader_precision_spec_fns = ('op-add', 'op-assign-add',
> + 'op-sub', 'op-assign-sub',
> + 'op-mult', 'op-assign-mult',
> + 'op-div', 'op-assign-div',
> + 'degrees', 'radians',
> + 'pow',
> + 'exp',
> + 'exp2',
> + 'log', 'log2',
> + 'sqrt', 'inversesqrt')
>
> def _is_sequence(arg):
> return isinstance(arg, (collections.Sequence, numpy.ndarray))
>
> +# The precision for log and log2 from the GLSL spec:
> +# 3 ULP outside the range [0.5, 2.0].
> +# Absolute error < 2^-21 inside the range [0.5, 2.0].
> +def _log_tol(arg):
> + if arg < 0.5 or arg > 2.0:
> + return 3.0
> + elif arg >= 0.5 and arg < 1.0:
> + # in the range [0.5, 1.0), one ulp is 5.960464478e-08,
> + # so 2^-21 is 8 ulps
> + return 8.0
> + else:
> + # in the range [1.0, 2.0), one ulp is 1.192092896e-07,
> + # so 2^-21 is 4 ulps
> + return 4.0
> +
> +# The precision for exp and exp2 from the GLSL spec:
> +# (3 + 2 * |x|) ULP.
> +def _exp_tol(arg):
> + return 3.0 + 2.0 * abs(arg)
> +
> +def _gen_tolerance(name, rettype, args, expected):
> + ret = []
> + compcnt = rettype.num_cols * rettype.num_rows
> +
> + for j in range(rettype.num_cols):
> + for i in range(rettype.num_rows):
> + # The precision for add, sub and mult from the GLSL spec:
> + # Correctly rounded.
> + if name in ('op-add', 'op-assign-add', 'op-sub', 'op-assign-sub', 'op-mult', 'op-assign-mult'):
> + ret.append(0.0)
> + # The precision for division from the GLSL spec:
> + # 2.5 ULP for b in the range [2^-126, 2^126].
> + elif name in ('op-div', 'op-assign-div'):
> + divisor = args[1][i] if _is_sequence(args[1]) else args[1]
> + if (divisor >= pow(2,-126) and divisor <= pow(2,126)) or \
> + (divisor <= -pow(2,-126) and divisor >= -pow(2,126)):
> + ret.append(2.5)
> + else:
> + return -1.0
Please stick this logic into a function. (BTW, what does a -1
tolerance mean here? Can you just assert? Also this function is
supposed to return an array... not a integer.)
Then this whole function can be expressed as a table of like
foo = {
'op-add': (lambda args, i, j: 0),
'exp': (lambda args, i, j: _exp_tol(args[j][i] if ... ) ),
etc.
> + # The precision for degrees and radians from the GLSL spec:
> + # Inherited from division
> + # denominator (pi or 180, respectively) is always within [2^-126, 2^126]
> + elif name in ('degrees', 'radians'):
> + ret.append(2.5)
> + # The precision for pow from the GLSL spec:
> + # Inherited from exp2 (x * log2 (y)).
> + elif name is 'pow':
> + x = args[0][i] if _is_sequence(args[0]) else args[0]
> + y = args[1][i] if _is_sequence(args[1]) else args[1]
> + ret.append(_exp_tol(x * _log_tol(y)))
> + elif name in ('exp', 'exp2'):
> + ret.append(_exp_tol(args[j][i] if compcnt > 1 else args[0]))
> + elif name in ('log', 'log2'):
> + ret.append(_log_tol(args[j][i] if compcnt > 1 else args[0]))
> + # The precision for sqrt from the GLSL spec:
> + # Inherited from 1.0 / inversesqrt().
> + elif name is 'sqrt':
> + ret.append(2.5)
> + # The precision for inversesqrt from the GLSL spec:
> + # 2 ULP.
> + elif name is 'inversesqrt':
> + ret.append(2.0)
> + else:
assert False
> + return -1.0
> +
> + return ret
> +
> def make_indexers(signature):
> """Build a list of strings which index into every possible
> value of the result. For example, if the result is a vec2,
> @@ -88,7 +167,7 @@ def make_indexers(signature):
> row_indexers = ['']
> else:
> row_indexers = ['[{0}]'.format(i) for i in range(signature.rettype.num_rows)]
> - return [col_indexer + row_indexer
> + return [col_indexer + row_indexer
> for col_indexer in col_indexers for row_indexer in row_indexers]
>
> def shader_runner_type(glsl_type):
> @@ -116,7 +195,7 @@ def shader_runner_format(values):
> retval = ''
> for x in values:
> assert isinstance(x, (float, np.float32))
> - retval+=' {0:1.8e}'.format(x)
> + retval += ' {0:1.8e}'.format(x)
> else:
> assert isinstance(values, (float, np.float32))
> retval = '{0:1.8e}'.format(values)
> @@ -128,34 +207,45 @@ def main():
> """ Main function """
>
> for signature, test_vectors in sorted(six.iteritems(test_suite)):
Can't say I understand why these have to be sorted...
> - arg_float_check = tuple(
> - arg.base_type == glsl_float for arg in signature.argtypes)
> - # Filter the test vectors down to only those which deal exclusively in float types
> - #and are not trig functions or determinant()
> - indexers = make_indexers(signature)
> - num_elements = signature.rettype.num_cols*signature.rettype.num_rows
> - invocation = signature.template.format( *['arg{0}'.format(i)
> - for i in range(len(signature.argtypes))])
> + arg_float_check = tuple(arg.base_type == glsl_float for arg in signature.argtypes)
> + arg_mat_check = tuple(arg.is_matrix for arg in signature.argtypes)
> + # Filter the test vectors down to only those which deal exclusively in
> + # non-matrix float types and are specified in the spec
> if (signature.rettype.base_type == glsl_float and
> arg_float_check and
> all(arg_float_check) and
Why are you checking whether arg_float_check is empty explicitly? When
would it be empty?
> - signature.name not in trig_builtins and
> - signature.name != 'determinant'):
> + signature.name in shader_precision_spec_fns and
> + arg_mat_check and
> + (not True in arg_mat_check)):
True not in arg_mat_check. Or even better, any(arg_mat_check). Which
you can do above as
any(arg.is_matrix for arg in ... )
> + # replace the tolerances in each test_vector with
> + # our own tolerances specified in ulps
> + refined_test_vectors = []
> + complex_tol_type = signature.rettype
> + for test_vector in test_vectors:
> + tolerance = _gen_tolerance(signature.name, signature.rettype, test_vector.arguments, test_vector.result)
> + if tolerance != -1.0:
Is this still needed? Can it return -1 in a real situation?
> + refined_test_vectors.append(TestVector(test_vector.arguments, test_vector.result, tolerance))
> + # Then generate the shader_test scripts
> for shader_stage in ('vs', 'fs', 'gs'):
> template = template_file('gen_shader_precision_tests', '{0}.mako'.format(shader_stage))
> output_filename = os.path.join( 'spec', 'arb_shader_precision',
> '{0}-{1}-{2}.shader_test'.format(
> - shader_stage, signature.name,
> - '-'.join(str(argtype)
> + shader_stage, signature.name,
> + '-'.join(str(argtype)
> for argtype in signature.argtypes)))
> print(output_filename)
> dirname = os.path.dirname(output_filename)
> if not os.path.exists(dirname):
> os.makedirs(dirname)
> + indexers = make_indexers(signature)
> + num_elements = signature.rettype.num_cols * signature.rettype.num_rows
> + invocation = signature.template.format( *['arg{0}'.format(i)
> + for i in range(len(signature.argtypes))])
> with open(output_filename, 'w') as f:
> - f.write(template.render_unicode( signature=signature,
> - test_vectors=test_vectors,
> - tolerances=tolerances,
> + f.write(template.render_unicode( signature=signature,
> + is_complex_tolerance=_is_sequence(tolerance),
> + complex_tol_type=signature.rettype,
> + test_vectors=refined_test_vectors,
> invocation=invocation,
> num_elements=num_elements,
> indexers=indexers,
> diff --git a/generated_tests/templates/gen_shader_precision_tests/fs.mako b/generated_tests/templates/gen_shader_precision_tests/fs.mako
> index 19ec737..7e97b7e 100644
> --- a/generated_tests/templates/gen_shader_precision_tests/fs.mako
> +++ b/generated_tests/templates/gen_shader_precision_tests/fs.mako
> @@ -4,12 +4,7 @@
> [require]
> GLSL >= 4.00
>
> -[vertex shader]
> -in vec4 piglit_vertex;
> -void main()
> -{
> - gl_Position = piglit_vertex;
> -}
> +[vertex shader passthrough]
>
> [fragment shader]
> #extension GL_ARB_shader_precision : require
> @@ -19,7 +14,11 @@ void main()
> % for i, arg in enumerate(signature.argtypes):
> uniform ${arg} arg${i};
> % endfor
> +% if is_complex_tolerance and complex_tol_type.name != 'float':
> +uniform ${complex_tol_type} tolerance;
> +% else:
> uniform float tolerance;
> +% endif
Uhm... I'm confused. Why not just always feed the type in here and kill the if?
> uniform ${signature.rettype} expected;
>
Bleh. Not your fault, but the diff below is totally unreadable. I'll
have to pull it up in some other format. But I think the above
comments should be enough for now.
> void main()
> @@ -56,29 +55,34 @@ ${' || '.join('(resultbits[{0}]>>31 != expectedbits[{0}]>>31)'.format(i) for i i
> ${signature.rettype} ulps = ${signature.rettype}(\
> ${', '.join('abs(resultbits[{0}] - expectedbits[{0}])'.format(i) for i in range(0, num_elements))}\
> );
> - ##
> - ## find the maximum error in ulps of all the calculations using a nested max() sort
> - ##
> + % if is_complex_tolerance and complex_tol_type.name != 'float':
> + ## compare vecs directly, use a boolean version of the rettype
> + b${signature.rettype} calcerr = greaterThan(ulps, tolerance);
> + % else:
> + ##
> + ## find the maximum error in ulps of all the calculations using a nested max() sort
> + ##
> float max_error = \
> - ## start with the outermost max() if there are more than 2 elements
> - ## (two element arrays, eg. vec2, are handled by the final max() below, only)
> - % if num_elements > 2:
> + ## start with the outermost max() if there are more than 2 elements
> + ## (two element arrays, eg. vec2, are handled by the final max() below, only)
> + % if num_elements > 2:
> max( \
> - % endif
> - ## cat each value to compare, with an additional nested max() up until the final two values
> - % for i, indexer in enumerate(indexers[:len(indexers)-2]):
> + % endif
> + ## cat each value to compare, with an additional nested max() up until the final two values
> + % for i, indexer in enumerate(indexers[:len(indexers)-2]):
> ulps${indexer}, \
> - % if i != len(indexers)-3:
> + % if i != len(indexers)-3:
> max(\
> - % endif
> - ## cat the final, deepest, max comparison
> - % endfor
> + % endif
> + ## cat the final, deepest, max comparison
> + % endfor
> max(ulps${indexers[len(indexers)-2]}, ulps${indexers[len(indexers)-1]})\
> - ## fill in completing parens
> - % for i in range(0, num_elements-2):
> + ## fill in completing parens
> + % for i in range(0, num_elements-2):
> )\
> - % endfor
> + % endfor
> ;
> + %endif
> % else:
> ##
> ## if there is only a single result value generated, compare it directly
> @@ -86,18 +90,18 @@ max(ulps${indexers[len(indexers)-2]}, ulps${indexers[len(indexers)-1]})\
> int resultbits = floatBitsToInt(result);
> int expectedbits = floatBitsToInt(expected);
> bool signerr = resultbits>>31 != expectedbits>>31;
> - % if signature.name != 'distance':
> - float ulps = distance(resultbits, expectedbits);
> - % else:
> float ulps = abs(resultbits - expectedbits);
> - % endif
> % endif
> ##
> ## the test passes if there were no sign errors and the ulps are within tolerance
> ##
> gl_FragColor = \
> % if signature.rettype.is_matrix or signature.rettype.is_vector:
> + % if is_complex_tolerance and complex_tol_type.name != 'float':
> +!signerr && !any(calcerr)\
> + % else:
> !signerr && max_error <= tolerance\
> + % endif
> % else:
> !signerr && ulps <= tolerance\
> % endif
> @@ -117,8 +121,12 @@ piglit_vertex/float/2
> uniform ${shader_runner_type(signature.argtypes[i])} arg${i} ${shader_runner_format( column_major_values(test_vector.arguments[i]))}
> % endfor
> uniform ${shader_runner_type(signature.rettype)} expected ${shader_runner_format(column_major_values(test_vector.result))}
> +% if is_complex_tolerance and complex_tol_type.name != 'float':
> +uniform ${shader_runner_type(complex_tol_type)} tolerance \
> +% else:
> uniform float tolerance \
> -${tolerances.get(signature.name, 0.0)}
> +% endif
> +${shader_runner_format(test_vector.tolerance)}
> draw arrays GL_TRIANGLE_FAN 0 4
> ## shader_runner uses a 250x250 window so we must ensure that test_num <= 250.
> probe rgba ${test_num % 250} 0 0.0 1.0 0.0 1.0
> diff --git a/generated_tests/templates/gen_shader_precision_tests/gs.mako b/generated_tests/templates/gen_shader_precision_tests/gs.mako
> index de4a3c8..3a76e9b 100644
> --- a/generated_tests/templates/gen_shader_precision_tests/gs.mako
> +++ b/generated_tests/templates/gen_shader_precision_tests/gs.mako
> @@ -24,7 +24,11 @@ flat out vec4 color;
> % for i, arg in enumerate(signature.argtypes):
> uniform ${arg} arg${i};
> % endfor
> +% if is_complex_tolerance and complex_tol_type.name != 'float':
> +uniform ${complex_tol_type} tolerance;
> +% else:
> uniform float tolerance;
> +% endif
> uniform ${signature.rettype} expected;
>
> void main()
> @@ -62,29 +66,34 @@ ${' || '.join('(resultbits[{0}]>>31 != expectedbits[{0}]>>31)'.format(i) for i i
> ${signature.rettype} ulps = ${signature.rettype}(\
> ${', '.join('abs(resultbits[{0}] - expectedbits[{0}])'.format(i) for i in range(0, num_elements))}\
> );
> - ##
> - ## find the maximum error in ulps of all the calculations using a nested max() sort
> - ##
> + % if is_complex_tolerance and complex_tol_type.name != 'float':
> + ## compare vecs directly, use a boolean version of the rettype
> + b${signature.rettype} calcerr = greaterThan(ulps, tolerance);
> + % else:
> + ##
> + ## find the maximum error in ulps of all the calculations using a nested max() sort
> + ##
> float max_error = \
> - ## start with the outermost max() if there are more than 2 elements
> - ## (two element arrays, eg. vec2, are handled by the final max() below, only)
> - % if num_elements > 2:
> + ## start with the outermost max() if there are more than 2 elements
> + ## (two element arrays, eg. vec2, are handled by the final max() below, only)
> + % if num_elements > 2:
> max( \
> - % endif
> - ## cat each value to compare, with an additional nested max() up until the final two values
> - % for i, indexer in enumerate(indexers[:len(indexers)-2]):
> + % endif
> + ## cat each value to compare, with an additional nested max() up until the final two values
> + % for i, indexer in enumerate(indexers[:len(indexers)-2]):
> ulps${indexer}, \
> - % if i != len(indexers)-3:
> + % if i != len(indexers)-3:
> max(\
> - % endif
> - ## cat the final, deepest, max comparison
> - % endfor
> + % endif
> + ## cat the final, deepest, max comparison
> + % endfor
> max(ulps${indexers[len(indexers)-2]}, ulps${indexers[len(indexers)-1]})\
> - ## fill in completing parens
> - % for i in range(0, num_elements-2):
> + ## fill in completing parens
> + % for i in range(0, num_elements-2):
> )\
> - % endfor
> + % endfor
> ;
> + %endif
> % else:
> ##
> ## if there is only a single result value generated, compare it directly
> @@ -92,18 +101,18 @@ max(ulps${indexers[len(indexers)-2]}, ulps${indexers[len(indexers)-1]})\
> int resultbits = floatBitsToInt(result);
> int expectedbits = floatBitsToInt(expected);
> bool signerr = resultbits>>31 != expectedbits>>31;
> - % if signature.name != 'distance':
> - float ulps = distance(resultbits, expectedbits);
> - % else:
> float ulps = abs(resultbits - expectedbits);
> - % endif
> % endif
> ##
> ## the test passes if there were no sign errors and the ulps are within tolerance
> ##
> tmp_color = \
> % if signature.rettype.is_matrix or signature.rettype.is_vector:
> + % if is_complex_tolerance and complex_tol_type.name != 'float':
> +!signerr && !any(calcerr)\
> + % else:
> !signerr && max_error <= tolerance\
> + % endif
> % else:
> !signerr && ulps <= tolerance\
> % endif
> @@ -136,8 +145,12 @@ piglit_vertex/float/2
> uniform ${shader_runner_type(signature.argtypes[i])} arg${i} ${shader_runner_format( column_major_values(test_vector.arguments[i]))}
> % endfor
> uniform ${shader_runner_type(signature.rettype)} expected ${shader_runner_format(column_major_values(test_vector.result))}
> +% if is_complex_tolerance and complex_tol_type.name != 'float':
> +uniform ${shader_runner_type(complex_tol_type)} tolerance \
> +% else:
> uniform float tolerance \
> -${tolerances.get(signature.name, 0.0)}
> +% endif
> +${shader_runner_format(test_vector.tolerance)}
> draw arrays GL_TRIANGLE_FAN 0 4
> ## shader_runner uses a 250x250 window so we must ensure that test_num <= 250.
> probe rgba ${test_num % 250} 0 0.0 1.0 0.0 1.0
> diff --git a/generated_tests/templates/gen_shader_precision_tests/vs.mako b/generated_tests/templates/gen_shader_precision_tests/vs.mako
> index 8d8fad6..d64effd 100644
> --- a/generated_tests/templates/gen_shader_precision_tests/vs.mako
> +++ b/generated_tests/templates/gen_shader_precision_tests/vs.mako
> @@ -14,7 +14,11 @@ flat out vec4 color;
> % for i, arg in enumerate(signature.argtypes):
> uniform ${arg} arg${i};
> % endfor
> +% if is_complex_tolerance and complex_tol_type.name != 'float':
> +uniform ${complex_tol_type} tolerance;
> +% else:
> uniform float tolerance;
> +% endif
> uniform ${signature.rettype} expected;
>
> void main()
> @@ -52,29 +56,34 @@ ${' || '.join('(resultbits[{0}]>>31 != expectedbits[{0}]>>31)'.format(i) for i i
> ${signature.rettype} ulps = ${signature.rettype}(\
> ${', '.join('abs(resultbits[{0}] - expectedbits[{0}])'.format(i) for i in range(0, num_elements))}\
> );
> - ##
> - ## find the maximum error in ulps of all the calculations using a nested max() sort
> - ##
> + % if is_complex_tolerance and complex_tol_type.name != 'float':
> + ## compare vecs directly, use a boolean version of the rettype
> + b${signature.rettype} calcerr = greaterThan(ulps, tolerance);
> + % else:
> + ##
> + ## find the maximum error in ulps of all the calculations using a nested max() sort
> + ##
> float max_error = \
> - ## start with the outermost max() if there are more than 2 elements
> - ## (two element arrays, eg. vec2, are handled by the final max() below, only)
> - % if num_elements > 2:
> + ## start with the outermost max() if there are more than 2 elements
> + ## (two element arrays, eg. vec2, are handled by the final max() below, only)
> + % if num_elements > 2:
> max( \
> - % endif
> - ## cat each value to compare, with an additional nested max() up until the final two values
> - % for i, indexer in enumerate(indexers[:len(indexers)-2]):
> + % endif
> + ## cat each value to compare, with an additional nested max() up until the final two values
> + % for i, indexer in enumerate(indexers[:len(indexers)-2]):
> ulps${indexer}, \
> - % if i != len(indexers)-3:
> + % if i != len(indexers)-3:
> max(\
> - % endif
> - ## cat the final, deepest, max comparison
> - % endfor
> + % endif
> + ## cat the final, deepest, max comparison
> + % endfor
> max(ulps${indexers[len(indexers)-2]}, ulps${indexers[len(indexers)-1]})\
> - ## fill in completing parens
> - % for i in range(0, num_elements-2):
> + ## fill in completing parens
> + % for i in range(0, num_elements-2):
> )\
> - % endfor
> + % endfor
> ;
> + %endif
> % else:
> ##
> ## if there is only a single result value generated, compare it directly
> @@ -82,18 +91,18 @@ max(ulps${indexers[len(indexers)-2]}, ulps${indexers[len(indexers)-1]})\
> int resultbits = floatBitsToInt(result);
> int expectedbits = floatBitsToInt(expected);
> bool signerr = resultbits>>31 != expectedbits>>31;
> - % if signature.name != 'distance':
> - float ulps = distance(resultbits, expectedbits);
> - % else:
> float ulps = abs(resultbits - expectedbits);
> - % endif
> % endif
> ##
> ## the test passes if there were no sign errors and the ulps are within tolerance
> ##
> color = \
> % if signature.rettype.is_matrix or signature.rettype.is_vector:
> + % if is_complex_tolerance and complex_tol_type.name != 'float':
> +!signerr && !any(calcerr)\
> + % else:
> !signerr && max_error <= tolerance\
> + % endif
> % else:
> !signerr && ulps <= tolerance\
> % endif
> @@ -121,8 +130,12 @@ piglit_vertex/float/2
> uniform ${shader_runner_type(signature.argtypes[i])} arg${i} ${shader_runner_format( column_major_values(test_vector.arguments[i]))}
> % endfor
> uniform ${shader_runner_type(signature.rettype)} expected ${shader_runner_format(column_major_values(test_vector.result))}
> +% if is_complex_tolerance and complex_tol_type.name != 'float':
> +uniform ${shader_runner_type(complex_tol_type)} tolerance \
> +% else:
> uniform float tolerance \
> -${tolerances.get(signature.name, 0.0)}
> +% endif
> +${shader_runner_format(test_vector.tolerance)}
> draw arrays GL_TRIANGLE_FAN 0 4
> ## shader_runner uses a 250x250 window so we must ensure that test_num <= 250.
> probe rgba ${test_num % 250} 0 0.0 1.0 0.0 1.0
> --
> 2.3.5
>
> _______________________________________________
> Piglit mailing list
> Piglit at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/piglit
More information about the Piglit
mailing list