[Piglit] [PATCH 1/3 v2] GS: Test that geometry ins/outs can have flat/smooth/noperspective qualifiers

[Paul Berry]

On 17 September 2013 14:03, Nicholas Mack <nichmack at gmail.com> wrote:

> v2: Modify test to also test for correct interpolation of data being passed
> ---
>  .../gs-also-uses-smooth-flat-noperspective.geom    | 25 ++++++
>  ...also-uses-smooth-flat-noperspective.shader_test | 95
> ++++++++++++++++++++++
>  2 files changed, 120 insertions(+)
>  create mode 100644
> tests/spec/glsl-1.50/compiler/gs-also-uses-smooth-flat-noperspective.geom
>  create mode 100644
> tests/spec/glsl-1.50/execution/gs-also-uses-smooth-flat-noperspective.shader_test
>

Thanks!

Reviewed-by: Paul Berry <stereotype441 at gmail.com>


>
> diff --git
> a/tests/spec/glsl-1.50/compiler/gs-also-uses-smooth-flat-noperspective.geom
> b/tests/spec/glsl-1.50/compiler/gs-also-uses-smooth-flat-noperspective.geom
> new file mode 100644
> index 0000000..f1ab41e
> --- /dev/null
> +++
> b/tests/spec/glsl-1.50/compiler/gs-also-uses-smooth-flat-noperspective.geom
> @@ -0,0 +1,25 @@
> +// [config]
> +// expect_result: pass
> +// glsl_version: 1.50
> +// check_link: true
> +// [end config]
> +
> +#version 150
> +
> +layout(points) in;
> +layout(points, max_vertices = 1) out;
> +
> +flat in int a[];
> +noperspective in int b[];
> +smooth in int c[];
> +
> +flat out int aa;
> +noperspective out int bb;
> +smooth out int cc;
> +
> +void main()
> +{
> +       aa = a[0];
> +       bb = b[0];
> +       cc = c[0];
> +}
> diff --git
> a/tests/spec/glsl-1.50/execution/gs-also-uses-smooth-flat-noperspective.shader_test
> b/tests/spec/glsl-1.50/execution/gs-also-uses-smooth-flat-noperspective.shader_test
> new file mode 100644
> index 0000000..fcc1081
> --- /dev/null
> +++
> b/tests/spec/glsl-1.50/execution/gs-also-uses-smooth-flat-noperspective.shader_test
> @@ -0,0 +1,95 @@
> +# Test that the qualifiers 'smooth', 'flat', and 'noperspective' can
> appear on
> +#  geometry shader ins and outs.
> +#
> +# From the GLSL 1.50 specification, section 4.3 ("Storage Qualifiers"):
> +#
> +# "Outputs from shader (out) and inputs to a shader (in) can be further
> +#  qualified with one of these interpolation qualifiers:
> +#      smooth
> +#      flat
> +#      noperspective"
> +
> +[require]
> +GL >= 3.2
> +GLSL >= 1.50
> +
> +[vertex shader]
> +
> +uniform mat4 mvp;
> +
> +in vec4 vertex;
> +in vec3 input_data;
> +
> +out vec4 pos;
> +flat out float a;
> +smooth out float b;
> +noperspective out float c;
> +
> +void main()
> +{
> +       gl_Position = vertex * mvp;
> +       pos = vertex * mvp;
> +       a = input_data.r;
> +       b = input_data.g;
> +       c = input_data.b;
> +}
> +
> +[geometry shader]
> +
> +layout(triangles) in;
> +layout(triangle_strip, max_vertices = 3) out;
> +
> +in vec4 pos[];
> +flat in float a[];
> +smooth in float b[];
> +noperspective in float c[];
> +
> +flat out float aa;
> +smooth out float bb;
> +noperspective out float cc;
> +
> +void main()
> +{
> +       for(int i = 0; i < 3; i++) {
> +               gl_Position = pos[i];
> +               aa = a[i];
> +               bb = b[i];
> +               cc = c[i];
> +               EmitVertex();
> +       }
> +}
> +
> +[fragment shader]
> +
> +flat in float aa;
> +smooth in float bb;
> +noperspective in float cc;
> +
> +out vec4 color;
> +
> +void main()
> +{
> +       color = vec4(aa, bb, cc, 1.0);
> +}
> +
> +[vertex data]
> +vertex/float/3  input_data/float/3
> + 0.0  6.0 -2.0  0.25 1.0 0.0
> +-3.0 -3.0 -1.0  0.50 0.0 0.0
> + 9.0 -9.0 -3.0  0.75 0.0 1.0
> +
> +[test]
> +uniform mat4 mvp 1 0 0 0 0 1 0 0 0 0 -2 -1 0 0 -3 0
> +clear color 0.0 0.0 0.0 0.0
> +clear
> +draw arrays GL_TRIANGLE_FAN 0 3
> +relative probe rgba (0.444444444444, 0.222222222222) (0.75,
> 0.166666666667, 0.333333333333, 1.0)
> +relative probe rgba (0.636363636364, 0.181818181818) (0.75,
> 0.166666666667, 0.545454545455, 1.0)
> +relative probe rgba (0.769230769231, 0.153846153846) (0.75,
> 0.166666666667, 0.692307692308, 1.0)
> +relative probe rgba (0.866666666667, 0.133333333333) (0.75,
> 0.166666666667, 0.8,            1.0)
> +relative probe rgba (0.5,            0.4           ) (0.75,
> 0.333333333333, 0.3,            1.0)
> +relative probe rgba (0.666666666667, 0.333333333333) (0.75,
> 0.333333333333, 0.5,            1.0)
> +relative probe rgba (0.785714285714, 0.285714285714) (0.75,
> 0.333333333333, 0.642857142857, 1.0)
> +relative probe rgba (0.545454545455, 0.545454545455) (0.75, 0.5,
>    0.272727272727, 1.0)
> +relative probe rgba (0.692307692308, 0.461538461538) (0.75, 0.5,
>    0.461538461538, 1.0)
> +relative probe rgba (0.583333333333, 0.666666666667) (0.75,
> 0.666666666667, 0.25,           1.0)
> --
> 1.8.3.1
>
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