[Piglit] [PATCH] glsl-1.10: add tests for an array index on a swizzled vec lvalue

[Timothy Arceri]

Reviewed-by: Timothy Arceri <tarceri at itsqueeze.com>

On 6/10/18 10:58 am, Ilia Mirkin wrote:
> Current mesa fails both of these (in different ways!).
> 
> Inspired by WebGL conformance test
> conformance2/glsl3/vector-dynamic-indexing-swizzled-lvalue.html
> 
> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
> ---
>   .../swizzled-writemask-indexing-nonconst.shader_test    | 17 +++++++++++++++++
>   .../execution/swizzled-writemask-indexing.shader_test   | 15 +++++++++++++++
>   2 files changed, 32 insertions(+)
>   create mode 100644 tests/spec/glsl-1.10/execution/swizzled-writemask-indexing-nonconst.shader_test
>   create mode 100644 tests/spec/glsl-1.10/execution/swizzled-writemask-indexing.shader_test
> 
> diff --git a/tests/spec/glsl-1.10/execution/swizzled-writemask-indexing-nonconst.shader_test b/tests/spec/glsl-1.10/execution/swizzled-writemask-indexing-nonconst.shader_test
> new file mode 100644
> index 000000000..fa1f7df58
> --- /dev/null
> +++ b/tests/spec/glsl-1.10/execution/swizzled-writemask-indexing-nonconst.shader_test
> @@ -0,0 +1,17 @@
> +[require]
> +GLSL >= 1.10
> +
> +[vertex shader passthrough]
> +
> +[fragment shader]
> +uniform int zero;
> +void main() {
> +    gl_FragColor = vec4(1, 0, 0, 1);
> +    gl_FragColor.wzyx[zero + 2] = 1.0;
> +    gl_FragColor.wzyx[zero + 3] = 0.0;
> +}
> +
> +[test]
> +uniform int zero 0
> +draw rect -1 -1 2 2
> +probe all rgba 0 1 0 1
> diff --git a/tests/spec/glsl-1.10/execution/swizzled-writemask-indexing.shader_test b/tests/spec/glsl-1.10/execution/swizzled-writemask-indexing.shader_test
> new file mode 100644
> index 000000000..f61ebabb8
> --- /dev/null
> +++ b/tests/spec/glsl-1.10/execution/swizzled-writemask-indexing.shader_test
> @@ -0,0 +1,15 @@
> +[require]
> +GLSL >= 1.10
> +
> +[vertex shader passthrough]
> +
> +[fragment shader]
> +void main() {
> +    gl_FragColor = vec4(1, 0, 0, 1);
> +    gl_FragColor.wzyx[2] = 1.0;
> +    gl_FragColor.wzyx[3] = 0.0;
> +}
> +
> +[test]
> +draw rect -1 -1 2 2
> +probe all rgba 0 1 0 1
>