[Piglit] [PATCH 2/2] color-clamping.vpfp: test that VS output colors are clamped to [0, 1]

[Brian Paul]

I wanted a test for ARB vp/fp since that's the situation where I found 
a bug.  I'll rewrite it for shader_runner, per Ian.

-Brian

On 04/05/2012 01:38 PM, Marek Olšák wrote:
> There is the same test in piglit already, which uses shader_runner:
>
> tests/shaders/glsl-clamp-vertex-color.shader_test
>
> Marek
>
> On Thu, Apr 5, 2012 at 8:19 PM, Brian Paul<brianp at vmware.com>  wrote:
>> ---
>>   tests/all.tests                           |    1 +
>>   tests/shaders/generic/color-clamping.vpfp |   15 +++++++++++++++
>>   2 files changed, 16 insertions(+), 0 deletions(-)
>>   create mode 100644 tests/shaders/generic/color-clamping.vpfp
>>
>> diff --git a/tests/all.tests b/tests/all.tests
>> index 1a56b67..2eea411 100644
>> --- a/tests/all.tests
>> +++ b/tests/all.tests
>> @@ -512,6 +512,7 @@ def add_vpfpgeneric(name):
>>         vpfpgeneric[name] = PlainExecTest(['vpfp-generic', '-auto', testsDir + '/shaders/generic/' + name + '.vpfp'])
>>   add_vpfpgeneric('arl')
>>   add_vpfpgeneric('big-param')
>> +add_vpfpgeneric('color-clamping')
>>   add_vpfpgeneric('dataflow-bug')
>>   add_vpfpgeneric('fdo30337a')
>>   add_vpfpgeneric('fdo30337b')
>> diff --git a/tests/shaders/generic/color-clamping.vpfp b/tests/shaders/generic/color-clamping.vpfp
>> new file mode 100644
>> index 0000000..10b90e5
>> --- /dev/null
>> +++ b/tests/shaders/generic/color-clamping.vpfp
>> @@ -0,0 +1,15 @@
>> +; Check that vertex shader color outputs are clamped to [0,1]
>> +
>> +!!ARBvp1.0
>> +OPTION ARB_position_invariant;
>> +# Emit any color larger than (1,1,1,1):
>> +MOV result.color, {20.0, 20.0, 20.0, 20.0};
>> +END
>> +
>> +!!ARBfp1.0
>> +MUL result.color, fragment.color, {0.5, 0.5, 0.5, 0.5};
>> +END
>> +
>> +!!test
>> +expected          0.5     0.5      0.5      0.5
>> +
>> --
>> 1.7.3.4
>>
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