[Piglit] [PATCH 1/2] arb_gpu_shader5: Add shader tests to verify 'invocations' layout qualifier

[Pohjolainen, Topi]

On Wed, Feb 12, 2014 at 10:11:20AM -0800, Anuj Phogat wrote:
> Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>

Both are:

Reviewed-by: Topi Pohjolainen <topi.pohjolainen at intel.com>

> ---
>  .../execution/invocations-conflicting.shader_test  | 47 ++++++++++++++++++++++
>  .../execution/invocations-matching.shader_test     | 46 +++++++++++++++++++++
>  2 files changed, 93 insertions(+)
>  create mode 100644 tests/spec/arb_gpu_shader5/execution/invocations-conflicting.shader_test
>  create mode 100644 tests/spec/arb_gpu_shader5/execution/invocations-matching.shader_test
> 
> diff --git a/tests/spec/arb_gpu_shader5/execution/invocations-conflicting.shader_test b/tests/spec/arb_gpu_shader5/execution/invocations-conflicting.shader_test
> new file mode 100644
> index 0000000..191d696
> --- /dev/null
> +++ b/tests/spec/arb_gpu_shader5/execution/invocations-conflicting.shader_test
> @@ -0,0 +1,47 @@
> +# ARB_gpu_shader5 spec says:
> +#   "If an invocation count is declared, all such declarations
> +#    must specify the same count."
> +#
> +# This test verifies that a link error occurs if two compilation units
> +# declare conflicting number of invocations.
> +
> +[require]
> +GLSL >= 1.50
> +GL_ARB_gpu_shader5
> +
> +[vertex shader passthrough]
> +
> +[geometry shader]
> +
> +#extension GL_ARB_gpu_shader5 : enable
> +layout(lines, invocations=4) in;
> +layout(triangle_strip, max_vertices = 3) out;
> +
> +void do_vertex(int i);
> +
> +void main()
> +{
> +  for (int i = 0; i < 2; i++)
> +    do_vertex(i);
> +}
> +
> +[geometry shader]
> +
> +#extension GL_ARB_gpu_shader5 : enable
> +layout(invocations=3) in;
> +
> +void do_vertex(int i)
> +{
> +}
> +
> +[fragment shader]
> +
> +out vec4 color;
> +
> +void main()
> +{
> +  color = vec4(0.0, 1.0, 0.0, 1.0);
> +}
> +
> +[test]
> +link error
> diff --git a/tests/spec/arb_gpu_shader5/execution/invocations-matching.shader_test b/tests/spec/arb_gpu_shader5/execution/invocations-matching.shader_test
> new file mode 100644
> index 0000000..a893d07
> --- /dev/null
> +++ b/tests/spec/arb_gpu_shader5/execution/invocations-matching.shader_test
> @@ -0,0 +1,46 @@
> +# ARB_gpu_shader5 spec says:
> +#   "If an invocation count is declared, all such declarations
> +#    must specify the same count."
> +#
> +# This test verifies the link success if two compilation units
> +# declare the same number of invocations.
> +
> +[require]
> +GLSL >= 1.50
> +GL_ARB_gpu_shader5
> +
> +[vertex shader passthrough]
> +
> +[geometry shader]
> +
> +#extension GL_ARB_gpu_shader5 : enable
> +layout(lines, invocations=4) in;
> +layout(triangle_strip, max_vertices = 3) out;
> +
> +void do_vertex(int i);
> +
> +void main()
> +{
> +  for (int i = 0; i < 2; i++)
> +    do_vertex(i);
> +}
> +
> +[geometry shader]
> +
> +#extension GL_ARB_gpu_shader5 : enable
> +layout(invocations=4) in;
> +void do_vertex(int i)
> +{
> +}
> +
> +[fragment shader]
> +
> +out vec4 color;
> +
> +void main()
> +{
> +  color = vec4(0.0, 1.0, 0.0, 1.0);
> +}
> +
> +[test]
> +link success
> -- 
> 1.8.3.1
> 
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