[Piglit] [PATCH 00/14] Tests related to interface block redeclaration.

[Paul Berry]

On 2 October 2013 16:45, Paul Berry <stereotype441 at gmail.com> wrote:

> I'm putting the finishing touches on a patch series for Mesa that
> allows for redeclaration of the gl_PerVertex interface block.  This
> series contains the tests I used to validate my Mesa work.
>
> The GLSL 1.50 spec doesn't directly address how to redeclare elements
> of the gl_PerVertex interface block, but the GLSL 4.10 spec does.  It
> seems pretty clear that the rules in the GLSL 4.10 spec were intended
> as a clarification, rather than a behavioural change, so I've based my
> tests on the GLSL 4.10 spec, but applied them to GLSL 1.50.
>
> A few patches don't relate directly to redeclaration of gl_PerVertex,
> but rather cover Mesa bugs I discovered while working on interface
> block redeclaration.  Patches 1 and 2 test some previously untested
> uses of identifiers to make sure that they can't begin with the "gl_"
> prefix.  Patches 4 and 5 test some things that should be prohibited in
> general for interface blocks, such as redeclaring an existing
> interface block, or declaring an interface block that conflicts with a
> global variable.
>
> The remaining patches are specific to redeclaration of gl_PerVertex.
>
> [PATCH 01/14] Test that struct names may not begin with "gl_" prefix.
> [PATCH 02/14] Test illegal usages of "gl_" prefix in interface blocks.
> [PATCH 03/14] Test that redeclaration of gl_PerVertex must be for a subset.
> [PATCH 04/14] Test that interface blocks cannot declare conflicting names.
> [PATCH 05/14] Test that in general, interface blocks cannot be redeclared.
> [PATCH 06/14] Test that the built-in gl_PerVertex interface block can be
> redeclared.
> [PATCH 07/14] Test that gl_PerVertex can't be redeclared after it's been
> used.
> [PATCH 08/14] Test that gl_PerVertex can't be redeclared multiple times in
> one shader.
> [PATCH 09/14] Test that after redeclaration, absent members of
> gl_PerVertex can't be used.
> [PATCH 10/14] Test that builtins can't be redeclared both inside and
> outside gl_PerVertex.
> [PATCH 11/14] Test inter- and intra-stage gl_PerVertex matching rules.
> [PATCH 12/14] Verify array-ness and instance name of gl_PerVertex
> redeclarations.
> [PATCH 13/14] Verify that gl_PerVertex can't be redeclared in certain
> shader types.
> [PATCH 14/14] Test that gl_in may be redeclared with an array size.
>

I almost forgot to mention: this series is available at branch
"interface-block-redeclaration" of
https://github.com/stereotype441/piglit.git.
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