[Piglit] [PATCH] gl-3.1-mixed-int-float-fbo: new mixed integer/float FBO test

[Anuj Phogat]

On Mon, Oct 3, 2016 at 12:20 PM, Brian Paul <brianp at vmware.com> wrote:
> On 10/03/2016 12:12 PM, Anuj Phogat wrote:
>>
>> On Thu, Sep 29, 2016 at 8:51 AM, Brian Paul <brianp at vmware.com> wrote:
>>>
>>> Create an FBO with two color attachments: one integer, the other
>>> unorm/float.  Use a fragment shader to write to both buffers and
>>> probe the results.
>>>
>>> Also, test the value of querying GL_RGBA_INTEGER_MODE_EXT.  It should
>>> be true whenever at least one attachment is integer.
>>>
>>> NOTE: This test fails with both NVIDIA and llvmpipe.  It seems that no
>>> matter whether the second attachment is integer or unorm, the rendering
>>> doesn't work.  I don't know if this is a driver bug, undefined behavior
>>> or if I've got something wrong in my code.  Ideas appreciated.
>>
>> This test also fails on Intel.
>
>
> Thanks for testing.  I'm _pretty_ sure my code is correct but maybe someone
> could double-check my work.  I'd have thought that there's probably some app
> out there that might try to do this, and that it should work.
>
I couldn't find any issue with the test case but I did quick hacks to
see if the same test works fine for both integer and both float
attachments. Test failed in both cases due to color probe in
COLOR_ATTACHMENT_1.
Here are my quick hacks:
1. both int attachments: http://sprunge.us/dVDj
2. both float attachments: http://sprunge.us/gYYS


> -Brian
>
>
>