[Piglit] [PATCH 05/10] arb_tessellation_shader: Add various simple cases for TCS input reads

Ilia Mirkin imirkin at alum.mit.edu
Mon Jul 27 17:27:32 PDT 2015


Reviewed-by: Ilia Mirkin <imirkin at alum.mit.edu>

FTR, you could just set one of the outer levels to 0... according to this text:

"""
    A patch is discarded by the tessellation primitive generator if any
    relevant outer tessellation level is less than or equal to zero.
"""

But it's a bit asymmetrical to do that, so whatever.


On Mon, Jul 27, 2015 at 8:02 PM, Marek Olšák <maraeo at gmail.com> wrote:
> From: Chris Forbes <chrisf at ijw.co.nz>
>
> v2: fixed by Marek
>
> Signed-off-by: Chris Forbes <chrisf at ijw.co.nz>
> Reviewed-by: Marek Olšák <marek.olsak at amd.com>
> ---
>  .../tcs-input-read-array-interface.shader_test     | 70 +++++++++++++++++++++
>  .../execution/tcs-input-read-mat.shader_test       | 68 ++++++++++++++++++++
>  ...put-read-nonconst-interface-builtin.shader_test | 65 +++++++++++++++++++
>  .../tcs-input-read-nonconst-interface.shader_test  | 72 ++++++++++++++++++++++
>  .../execution/tcs-input-read-nonconst.shader_test  | 68 ++++++++++++++++++++
>  .../tcs-input-read-simple-interface.shader_test    | 68 ++++++++++++++++++++
>  .../execution/tcs-input-read-simple.shader_test    | 68 ++++++++++++++++++++
>  7 files changed, 479 insertions(+)
>  create mode 100644 tests/spec/arb_tessellation_shader/execution/tcs-input-read-array-interface.shader_test
>  create mode 100644 tests/spec/arb_tessellation_shader/execution/tcs-input-read-mat.shader_test
>  create mode 100644 tests/spec/arb_tessellation_shader/execution/tcs-input-read-nonconst-interface-builtin.shader_test
>  create mode 100644 tests/spec/arb_tessellation_shader/execution/tcs-input-read-nonconst-interface.shader_test
>  create mode 100644 tests/spec/arb_tessellation_shader/execution/tcs-input-read-nonconst.shader_test
>  create mode 100644 tests/spec/arb_tessellation_shader/execution/tcs-input-read-simple-interface.shader_test
>  create mode 100644 tests/spec/arb_tessellation_shader/execution/tcs-input-read-simple.shader_test
>
> diff --git a/tests/spec/arb_tessellation_shader/execution/tcs-input-read-array-interface.shader_test b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-array-interface.shader_test
> new file mode 100644
> index 0000000..39c5399
> --- /dev/null
> +++ b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-array-interface.shader_test
> @@ -0,0 +1,70 @@
> +# Test a single per-vertex input read in a TCS.
> +
> +[require]
> +GLSL >= 1.50
> +GL_ARB_tessellation_shader
> +
> +[vertex shader]
> +#version 150
> +
> +out block { vec4 v[2]; };
> +
> +void main()
> +{
> +       v[0].x = 24.0;
> +       v[1].x = 42.0;
> +}
> +
> +
> +[tessellation control shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +uniform int k;
> +in block { vec4 v[2]; } per_vertex[];
> +layout(vertices = 1) out;
> +
> +void main()
> +{
> +       if (per_vertex[0].v[1].x == 42.0) {     /* constant index case */
> +               gl_TessLevelInner[0] = 1.0;
> +               gl_TessLevelInner[1] = 1.0;
> +
> +               gl_TessLevelOuter[0] = 1.0;
> +               gl_TessLevelOuter[1] = 1.0;
> +               gl_TessLevelOuter[2] = 1.0;
> +               gl_TessLevelOuter[3] = 1.0;
> +       } else {
> +               gl_TessLevelInner[0] = 0.0;
> +               gl_TessLevelInner[1] = 0.0;
> +
> +               gl_TessLevelOuter[0] = 0.0;
> +               gl_TessLevelOuter[1] = 0.0;
> +               gl_TessLevelOuter[2] = 0.0;
> +               gl_TessLevelOuter[3] = 0.0;
> +       }
> +}
> +
> +[tessellation evaluation shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +layout(quads, equal_spacing) in;
> +
> +void main()
> +{
> +       gl_Position = vec4(gl_TessCoord.xy * 2 - 1, 0, 1);
> +}
> +
> +[fragment shader]
> +#version 150
> +
> +void main()
> +{
> +       gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);
> +}
> +
> +[test]
> +patch parameter vertices 1
> +draw arrays GL_PATCHES 0 1
> +probe all rgba 0.0 1.0 0.0 1.0
> diff --git a/tests/spec/arb_tessellation_shader/execution/tcs-input-read-mat.shader_test b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-mat.shader_test
> new file mode 100644
> index 0000000..5e7858c
> --- /dev/null
> +++ b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-mat.shader_test
> @@ -0,0 +1,68 @@
> +# Test a single per-vertex input read in a TCS.
> +
> +[require]
> +GLSL >= 1.50
> +GL_ARB_tessellation_shader
> +
> +[vertex shader]
> +#version 150
> +
> +out mat4 v;
> +
> +void main()
> +{
> +       v[2][2] = 42.0;
> +}
> +
> +
> +[tessellation control shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +in mat4 v[];
> +layout(vertices = 1) out;
> +
> +void main()
> +{
> +       if (v[0][2][2] == 42.0) {       /* constant index case */
> +               gl_TessLevelInner[0] = 1.0;
> +               gl_TessLevelInner[1] = 1.0;
> +
> +               gl_TessLevelOuter[0] = 1.0;
> +               gl_TessLevelOuter[1] = 1.0;
> +               gl_TessLevelOuter[2] = 1.0;
> +               gl_TessLevelOuter[3] = 1.0;
> +       } else {
> +               gl_TessLevelInner[0] = 0.0;
> +               gl_TessLevelInner[1] = 0.0;
> +
> +               gl_TessLevelOuter[0] = 0.0;
> +               gl_TessLevelOuter[1] = 0.0;
> +               gl_TessLevelOuter[2] = 0.0;
> +               gl_TessLevelOuter[3] = 0.0;
> +       }
> +}
> +
> +[tessellation evaluation shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +layout(quads, equal_spacing) in;
> +
> +void main()
> +{
> +       gl_Position = vec4(gl_TessCoord.xy * 2 - 1, 0, 1);
> +}
> +
> +[fragment shader]
> +#version 150
> +
> +void main()
> +{
> +       gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);
> +}
> +
> +[test]
> +patch parameter vertices 1
> +draw arrays GL_PATCHES 0 1
> +probe all rgba 0.0 1.0 0.0 1.0
> diff --git a/tests/spec/arb_tessellation_shader/execution/tcs-input-read-nonconst-interface-builtin.shader_test b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-nonconst-interface-builtin.shader_test
> new file mode 100644
> index 0000000..569b372
> --- /dev/null
> +++ b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-nonconst-interface-builtin.shader_test
> @@ -0,0 +1,65 @@
> +# Test a single per-vertex input read in a TCS.
> +
> +[require]
> +GLSL >= 1.50
> +GL_ARB_tessellation_shader
> +
> +[vertex shader]
> +#version 150
> +
> +void main()
> +{
> +       gl_Position = vec4(42.0);
> +}
> +
> +
> +[tessellation control shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +layout(vertices = 1) out;
> +
> +void main()
> +{
> +       if (gl_in[gl_InvocationID].gl_Position.x == 42.0) {
> +               gl_TessLevelInner[0] = 1.0;
> +               gl_TessLevelInner[1] = 1.0;
> +
> +               gl_TessLevelOuter[0] = 1.0;
> +               gl_TessLevelOuter[1] = 1.0;
> +               gl_TessLevelOuter[2] = 1.0;
> +               gl_TessLevelOuter[3] = 1.0;
> +       } else {
> +               gl_TessLevelInner[0] = 0.0;
> +               gl_TessLevelInner[1] = 0.0;
> +
> +               gl_TessLevelOuter[0] = 0.0;
> +               gl_TessLevelOuter[1] = 0.0;
> +               gl_TessLevelOuter[2] = 0.0;
> +               gl_TessLevelOuter[3] = 0.0;
> +       }
> +}
> +
> +[tessellation evaluation shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +layout(quads, equal_spacing) in;
> +
> +void main()
> +{
> +       gl_Position = vec4(gl_TessCoord.xy * 2 - 1, 0, 1);
> +}
> +
> +[fragment shader]
> +#version 150
> +
> +void main()
> +{
> +       gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);
> +}
> +
> +[test]
> +patch parameter vertices 1
> +draw arrays GL_PATCHES 0 1
> +probe all rgba 0.0 1.0 0.0 1.0
> diff --git a/tests/spec/arb_tessellation_shader/execution/tcs-input-read-nonconst-interface.shader_test b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-nonconst-interface.shader_test
> new file mode 100644
> index 0000000..c83e6fb
> --- /dev/null
> +++ b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-nonconst-interface.shader_test
> @@ -0,0 +1,72 @@
> +# Test a single per-vertex input read in a TCS.
> +
> +[require]
> +GLSL >= 1.50
> +GL_ARB_tessellation_shader
> +
> +[vertex shader]
> +#version 150
> +
> +out block {
> +       float v;
> +};
> +
> +void main()
> +{
> +       v = 42.0;
> +}
> +
> +
> +[tessellation control shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +in block {
> +       float v;
> +} verts[2];
> +layout(vertices = 1) out;
> +
> +void main()
> +{
> +       if (verts[gl_InvocationID].v == 42.0) {
> +               gl_TessLevelInner[0] = 1.0;
> +               gl_TessLevelInner[1] = 1.0;
> +
> +               gl_TessLevelOuter[0] = 1.0;
> +               gl_TessLevelOuter[1] = 1.0;
> +               gl_TessLevelOuter[2] = 1.0;
> +               gl_TessLevelOuter[3] = 1.0;
> +       } else {
> +               gl_TessLevelInner[0] = 0.0;
> +               gl_TessLevelInner[1] = 0.0;
> +
> +               gl_TessLevelOuter[0] = 0.0;
> +               gl_TessLevelOuter[1] = 0.0;
> +               gl_TessLevelOuter[2] = 0.0;
> +               gl_TessLevelOuter[3] = 0.0;
> +       }
> +}
> +
> +[tessellation evaluation shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +layout(quads, equal_spacing) in;
> +
> +void main()
> +{
> +       gl_Position = vec4(gl_TessCoord.xy * 2 - 1, 0, 1);
> +}
> +
> +[fragment shader]
> +#version 150
> +
> +void main()
> +{
> +       gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);
> +}
> +
> +[test]
> +patch parameter vertices 1
> +draw arrays GL_PATCHES 0 1
> +probe all rgba 0.0 1.0 0.0 1.0
> diff --git a/tests/spec/arb_tessellation_shader/execution/tcs-input-read-nonconst.shader_test b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-nonconst.shader_test
> new file mode 100644
> index 0000000..2e3d1ff
> --- /dev/null
> +++ b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-nonconst.shader_test
> @@ -0,0 +1,68 @@
> +# Test a single per-vertex input read in a TCS.
> +
> +[require]
> +GLSL >= 1.50
> +GL_ARB_tessellation_shader
> +
> +[vertex shader]
> +#version 150
> +
> +out float v;
> +
> +void main()
> +{
> +       v = 42.0;
> +}
> +
> +
> +[tessellation control shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +in float v[2];
> +layout(vertices = 1) out;
> +
> +void main()
> +{
> +       if (v[gl_InvocationID] == 42.0) {
> +               gl_TessLevelInner[0] = 1.0;
> +               gl_TessLevelInner[1] = 1.0;
> +
> +               gl_TessLevelOuter[0] = 1.0;
> +               gl_TessLevelOuter[1] = 1.0;
> +               gl_TessLevelOuter[2] = 1.0;
> +               gl_TessLevelOuter[3] = 1.0;
> +       } else {
> +               gl_TessLevelInner[0] = 0.0;
> +               gl_TessLevelInner[1] = 0.0;
> +
> +               gl_TessLevelOuter[0] = 0.0;
> +               gl_TessLevelOuter[1] = 0.0;
> +               gl_TessLevelOuter[2] = 0.0;
> +               gl_TessLevelOuter[3] = 0.0;
> +       }
> +}
> +
> +[tessellation evaluation shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +layout(quads, equal_spacing) in;
> +
> +void main()
> +{
> +       gl_Position = vec4(gl_TessCoord.xy * 2 - 1, 0, 1);
> +}
> +
> +[fragment shader]
> +#version 150
> +
> +void main()
> +{
> +       gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);
> +}
> +
> +[test]
> +patch parameter vertices 1
> +draw arrays GL_PATCHES 0 1
> +probe all rgba 0.0 1.0 0.0 1.0
> diff --git a/tests/spec/arb_tessellation_shader/execution/tcs-input-read-simple-interface.shader_test b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-simple-interface.shader_test
> new file mode 100644
> index 0000000..95696e2
> --- /dev/null
> +++ b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-simple-interface.shader_test
> @@ -0,0 +1,68 @@
> +# Test a single per-vertex input read in a TCS.
> +
> +[require]
> +GLSL >= 1.50
> +GL_ARB_tessellation_shader
> +
> +[vertex shader]
> +#version 150
> +
> +out block { float v; };
> +
> +void main()
> +{
> +       v = 42.0;
> +}
> +
> +
> +[tessellation control shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +in block { float v; } per_vertex[];
> +layout(vertices = 1) out;
> +
> +void main()
> +{
> +       if (per_vertex[0].v == 42.0) {  /* constant index case */
> +               gl_TessLevelInner[0] = 1.0;
> +               gl_TessLevelInner[1] = 1.0;
> +
> +               gl_TessLevelOuter[0] = 1.0;
> +               gl_TessLevelOuter[1] = 1.0;
> +               gl_TessLevelOuter[2] = 1.0;
> +               gl_TessLevelOuter[3] = 1.0;
> +       } else {
> +               gl_TessLevelInner[0] = 0.0;
> +               gl_TessLevelInner[1] = 0.0;
> +
> +               gl_TessLevelOuter[0] = 0.0;
> +               gl_TessLevelOuter[1] = 0.0;
> +               gl_TessLevelOuter[2] = 0.0;
> +               gl_TessLevelOuter[3] = 0.0;
> +       }
> +}
> +
> +[tessellation evaluation shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +layout(quads, equal_spacing) in;
> +
> +void main()
> +{
> +       gl_Position = vec4(gl_TessCoord.xy * 2 - 1, 0, 1);
> +}
> +
> +[fragment shader]
> +#version 150
> +
> +void main()
> +{
> +       gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);
> +}
> +
> +[test]
> +patch parameter vertices 1
> +draw arrays GL_PATCHES 0 1
> +probe all rgba 0.0 1.0 0.0 1.0
> diff --git a/tests/spec/arb_tessellation_shader/execution/tcs-input-read-simple.shader_test b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-simple.shader_test
> new file mode 100644
> index 0000000..d0a226c
> --- /dev/null
> +++ b/tests/spec/arb_tessellation_shader/execution/tcs-input-read-simple.shader_test
> @@ -0,0 +1,68 @@
> +# Test a single per-vertex input read in a TCS.
> +
> +[require]
> +GLSL >= 1.50
> +GL_ARB_tessellation_shader
> +
> +[vertex shader]
> +#version 150
> +
> +out float v;
> +
> +void main()
> +{
> +       v = 42.0;
> +}
> +
> +
> +[tessellation control shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +in float v[];
> +layout(vertices = 1) out;
> +
> +void main()
> +{
> +       if (v[0] == 42.0) {     /* constant index case */
> +               gl_TessLevelInner[0] = 1.0;
> +               gl_TessLevelInner[1] = 1.0;
> +
> +               gl_TessLevelOuter[0] = 1.0;
> +               gl_TessLevelOuter[1] = 1.0;
> +               gl_TessLevelOuter[2] = 1.0;
> +               gl_TessLevelOuter[3] = 1.0;
> +       } else {
> +               gl_TessLevelInner[0] = 0.0;
> +               gl_TessLevelInner[1] = 0.0;
> +
> +               gl_TessLevelOuter[0] = 0.0;
> +               gl_TessLevelOuter[1] = 0.0;
> +               gl_TessLevelOuter[2] = 0.0;
> +               gl_TessLevelOuter[3] = 0.0;
> +       }
> +}
> +
> +[tessellation evaluation shader]
> +#version 150
> +#extension GL_ARB_tessellation_shader : require
> +
> +layout(quads, equal_spacing) in;
> +
> +void main()
> +{
> +       gl_Position = vec4(gl_TessCoord.xy * 2 - 1, 0, 1);
> +}
> +
> +[fragment shader]
> +#version 150
> +
> +void main()
> +{
> +       gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);
> +}
> +
> +[test]
> +patch parameter vertices 1
> +draw arrays GL_PATCHES 0 1
> +probe all rgba 0.0 1.0 0.0 1.0
> --
> 2.1.4
>
> _______________________________________________
> Piglit mailing list
> Piglit at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/piglit


More information about the Piglit mailing list