[Piglit] [PATCH 2/2] Add compiler tests for overlapping attribute locations

[Jordan Justen]

Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>

On Mon, Mar 10, 2014 at 11:38 AM, Anuj Phogat <anuj.phogat at gmail.com> wrote:
> Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
> ---
>  .../compiler/overlapping-attrib-locations-1.vert   | 28 ++++++++++++++++++++++
>  .../compiler/overlapping-attrib-locations-2.vert   | 28 ++++++++++++++++++++++
>  2 files changed, 56 insertions(+)
>  create mode 100644 tests/spec/arb_explicit_attrib_location/1.10/compiler/overlapping-attrib-locations-1.vert
>  create mode 100644 tests/spec/arb_explicit_attrib_location/1.10/compiler/overlapping-attrib-locations-2.vert
>
> diff --git a/tests/spec/arb_explicit_attrib_location/1.10/compiler/overlapping-attrib-locations-1.vert b/tests/spec/arb_explicit_attrib_location/1.10/compiler/overlapping-attrib-locations-1.vert
> new file mode 100644
> index 0000000..af3b8ae
> --- /dev/null
> +++ b/tests/spec/arb_explicit_attrib_location/1.10/compiler/overlapping-attrib-locations-1.vert
> @@ -0,0 +1,28 @@
> +// [config]
> +// expect_result: pass
> +// glsl_version: 1.10
> +// check_link: true
> +// [end config]
> +//
> +// Binding more than one attribute name to the same location is referred
> +// to as aliasing. It is allowed only on vertex shader input variables
> +// in OpenGL (2.0 and above). Check that vertex shader compiles and links
> +// successfully in case of overlapping input attribute locations. This
> +// shader uses attributes of same size with same locations.
> +
> +#version 110
> +#extension  GL_ARB_explicit_attrib_location : require
> +
> +layout(location=0) in vec4 p0;
> +layout(location=0) in vec4 p1;
> +uniform int x;
> +
> +void main()
> +{
> +    if (x == 0)
> +       gl_Position = p0;
> +    else if (x == 1)
> +       gl_Position = p1;
> +    else
> +       gl_Position = vec4(0.0);
> +}
> diff --git a/tests/spec/arb_explicit_attrib_location/1.10/compiler/overlapping-attrib-locations-2.vert b/tests/spec/arb_explicit_attrib_location/1.10/compiler/overlapping-attrib-locations-2.vert
> new file mode 100644
> index 0000000..81af940
> --- /dev/null
> +++ b/tests/spec/arb_explicit_attrib_location/1.10/compiler/overlapping-attrib-locations-2.vert
> @@ -0,0 +1,28 @@
> +// [config]
> +// expect_result: pass
> +// glsl_version: 1.10
> +// check_link: true
> +// [end config]
> +//
> +// Binding more than one attribute name to the same location is referred
> +// to as aliasing. It is allowed only on vertex shader input variables
> +// in OpenGL (2.0 and above). Check that vertex shader compiles and links
> +// successfully in case of overlapping input attribute locations. This
> +// shader uses attributes of different sizes with overlapping locations.
> +
> +#version 110
> +#extension  GL_ARB_explicit_attrib_location : require
> +
> +layout(location=0) in mat4 mat;
> +layout(location=3) in vec4 p;
> +uniform int x;
> +
> +void main()
> +{
> +    if (x == 0)
> +       gl_Position = mat * vec4(1.0);
> +    else if (x == 1)
> +       gl_Position = p;
> +    else
> +       gl_Position = vec4(0.0);
> +}
> --
> 1.8.3.1
>
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