[Piglit] [PATCH] arb_fragment_layer_viewport: simple write tests

[Ilia Mirkin]

On Mon, Jun 23, 2014 at 3:02 PM, Ian Romanick <idr at freedesktop.org> wrote:
> On 06/23/2014 06:52 AM, Ilia Mirkin wrote:
>> With no layered fb and unconfigured viewports, the values of
>> gl_Layer/gl_ViewportIndex shouldn't matter for rendering. Make sure that
>> they're being passed through correctly from GS to FS.
>
> This test is
>
> Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

Thanks!

>
> It would be really good to have a separate shader objects version of the
> test too.  I suspect Mesa may have some additional difficulties with
> that case...

Unfortunately that's beyond my abilities, unless shader_runner can do
it and you can point me at some examples.

>
>> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
>> ---
>>
>> These apply on top of ChrisF's series.
>>
>>  .../layer-gs-write-simple.shader_test              | 70 +++++++++++++++++++++
>>  .../viewport-gs-write-simple.shader_test           | 72 ++++++++++++++++++++++
>>  2 files changed, 142 insertions(+)
>>  create mode 100644 tests/spec/arb_fragment_layer_viewport/layer-gs-write-simple.shader_test
>>  create mode 100644 tests/spec/arb_fragment_layer_viewport/viewport-gs-write-simple.shader_test
>>
>> diff --git a/tests/spec/arb_fragment_layer_viewport/layer-gs-write-simple.shader_test b/tests/spec/arb_fragment_layer_viewport/layer-gs-write-simple.shader_test
>> new file mode 100644
>> index 0000000..1d27dde
>> --- /dev/null
>> +++ b/tests/spec/arb_fragment_layer_viewport/layer-gs-write-simple.shader_test
>> @@ -0,0 +1,70 @@
>> +[require]
>> +GLSL >= 1.50
>> +GL_ARB_fragment_layer_viewport
>> +
>> +[vertex shader]
>> +#version 150
>> +in vec4 piglit_vertex;
>> +
>> +void main()
>> +{
>> +     gl_Position = piglit_vertex;
>> +}
>> +
>> +[geometry shader]
>> +#version 150
>> +
>> +layout(triangles) in;
>> +layout(triangle_strip, max_vertices=3) out;
>> +uniform int layer;
>> +
>> +void main()
>> +{
>> +     for (int i = 0; i < 3; i++) {
>> +             gl_Position = gl_in[i].gl_Position;
>> +             gl_Layer = layer;
>> +             EmitVertex();
>> +     }
>> +}
>> +
>> +[fragment shader]
>> +#version 150
>> +#extension GL_ARB_fragment_layer_viewport: require
>> +
>> +uniform int layer;
>> +
>> +void main()
>> +{
>> +     if (gl_Layer == layer)
>> +             gl_FragColor = vec4(0,1,0,0);
>> +     else
>> +             gl_FragColor = vec4(1,0,0,0);
>> +}
>> +
>> +[test]
>> +clear color 0.0 0.0 0.0 0.0
>> +
>> +clear
>> +uniform int layer 0
>> +draw rect -1 -1 2 2
>> +probe all rgb 0.0 1.0 0.0
>> +
>> +clear
>> +uniform int layer 1
>> +draw rect -1 -1 2 2
>> +probe all rgb 0.0 1.0 0.0
>> +
>> +clear
>> +uniform int layer 10
>> +draw rect -1 -1 2 2
>> +probe all rgb 0.0 1.0 0.0
>> +
>> +clear
>> +uniform int layer 100
>> +draw rect -1 -1 2 2
>> +probe all rgb 0.0 1.0 0.0
>> +
>> +clear
>> +uniform int layer -1
>> +draw rect -1 -1 2 2
>> +probe all rgb 0.0 1.0 0.0
>> diff --git a/tests/spec/arb_fragment_layer_viewport/viewport-gs-write-simple.shader_test b/tests/spec/arb_fragment_layer_viewport/viewport-gs-write-simple.shader_test
>> new file mode 100644
>> index 0000000..06abd96
>> --- /dev/null
>> +++ b/tests/spec/arb_fragment_layer_viewport/viewport-gs-write-simple.shader_test
>> @@ -0,0 +1,72 @@
>> +[require]
>> +GLSL >= 1.50
>> +GL_ARB_fragment_layer_viewport
>> +GL_ARB_viewport_array
>> +
>> +[vertex shader]
>> +#version 150
>> +in vec4 piglit_vertex;
>> +
>> +void main()
>> +{
>> +     gl_Position = piglit_vertex;
>> +}
>> +
>> +[geometry shader]
>> +#version 150
>> +#extension GL_ARB_viewport_array: enable
>> +
>> +layout(triangles) in;
>> +layout(triangle_strip, max_vertices=3) out;
>> +uniform int viewport;
>> +
>> +void main()
>> +{
>> +     for (int i = 0; i < 3; i++) {
>> +             gl_Position = gl_in[i].gl_Position;
>> +             gl_ViewportIndex = viewport;
>> +             EmitVertex();
>> +     }
>> +}
>> +
>> +[fragment shader]
>> +#version 150
>> +#extension GL_ARB_fragment_layer_viewport: require
>> +
>> +uniform int viewport;
>> +
>> +void main()
>> +{
>> +     if (gl_ViewportIndex == viewport)
>> +             gl_FragColor = vec4(0,1,0,0);
>> +     else
>> +             gl_FragColor = vec4(1,0,0,0);
>> +}
>> +
>> +[test]
>> +clear color 0.0 0.0 0.0 0.0
>> +
>> +clear
>> +uniform int viewport 0
>> +draw rect -1 -1 2 2
>> +probe all rgb 0.0 1.0 0.0
>> +
>> +clear
>> +uniform int viewport 1
>> +draw rect -1 -1 2 2
>> +probe all rgb 0.0 1.0 0.0
>> +
>> +clear
>> +uniform int viewport 10
>> +draw rect -1 -1 2 2
>> +probe all rgb 0.0 1.0 0.0
>> +
>> +clear
>> +uniform int viewport 100
>> +draw rect -1 -1 2 2
>> +probe all rgb 0.0 1.0 0.0
>> +
>> +clear
>> +uniform int viewport -1
>> +draw rect -1 -1 2 2
>> +probe all rgb 0.0 1.0 0.0
>>
>