[Piglit] [PATCH] arb_derivative_control: add some basic tests
Chris Forbes
chrisf at ijw.co.nz
Thu Aug 14 02:20:54 PDT 2014
Reviewed-by: Chris Forbes <chrisf at ijw.co.nz>
On Thu, Aug 14, 2014 at 5:56 PM, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
> ---
> tests/all.py | 9 +++++++
> .../arb_derivative_control/compiler/define.frag | 29 ++++++++++++++++++++++
> .../execution/dfdx-coarse.shader_test | 22 ++++++++++++++++
> .../execution/dfdx-dfdy.shader_test | 22 ++++++++++++++++
> .../execution/dfdx-fine.shader_test | 26 +++++++++++++++++++
> .../execution/dfdy-coarse.shader_test | 22 ++++++++++++++++
> .../execution/dfdy-fine.shader_test | 26 +++++++++++++++++++
> 7 files changed, 156 insertions(+)
> create mode 100644 tests/spec/arb_derivative_control/compiler/define.frag
> create mode 100644 tests/spec/arb_derivative_control/execution/dfdx-coarse.shader_test
> create mode 100644 tests/spec/arb_derivative_control/execution/dfdx-dfdy.shader_test
> create mode 100644 tests/spec/arb_derivative_control/execution/dfdx-fine.shader_test
> create mode 100644 tests/spec/arb_derivative_control/execution/dfdy-coarse.shader_test
> create mode 100644 tests/spec/arb_derivative_control/execution/dfdy-fine.shader_test
>
> diff --git a/tests/all.py b/tests/all.py
> index 4541654..0f69a66 100644
> --- a/tests/all.py
> +++ b/tests/all.py
> @@ -4098,6 +4098,15 @@ arb_shader_atomic_counters['semantics'] = concurrent_test('arb_shader_atomic_cou
> arb_shader_atomic_counters['unique-id'] = concurrent_test('arb_shader_atomic_counters-unique-id')
> arb_shader_atomic_counters['unused-result'] = concurrent_test('arb_shader_atomic_counters-unused-result')
>
> +arb_derivative_control = {}
> +spec['ARB_derivative_control'] = arb_derivative_control
> +add_shader_test_dir(arb_derivative_control,
> + os.path.join(testsDir, 'spec', 'arb_derivative_control'),
> + recursive=True)
> +import_glsl_parser_tests(arb_derivative_control,
> + testsDir + '/spec/arb_derivative_control', [''])
> +
> +
> profile.tests['hiz'] = hiz
> profile.tests['fast_color_clear'] = fast_color_clear
> profile.tests['glean'] = glean
> diff --git a/tests/spec/arb_derivative_control/compiler/define.frag b/tests/spec/arb_derivative_control/compiler/define.frag
> new file mode 100644
> index 0000000..4e31dd7
> --- /dev/null
> +++ b/tests/spec/arb_derivative_control/compiler/define.frag
> @@ -0,0 +1,29 @@
> +// [config]
> +// expect_result: pass
> +// glsl_version: 1.50
> +// require_extensions: GL_ARB_derivative_control
> +// [end config]
> +
> +#version 150
> +#extension GL_ARB_derivative_control: require
> +
> +#if !defined GL_ARB_derivative_control
> +# error GL_ARB_derivative_control is not defined
> +#elif GL_ARB_derivative_control != 1
> +# error GL_ARB_derivative_control is not equal to 1
> +#endif
> +
> +/* Make sure that the functions are defined */
> +in vec4 val;
> +out vec4 color;
> +void main() {
> + color = dFdx(val);
> + color += dFdy(val);
> + color += fwidth(val);
> + color += dFdxCoarse(val);
> + color += dFdyCoarse(val);
> + color += fwidthCoarse(val);
> + color += dFdxFine(val);
> + color += dFdyFine(val);
> + color += fwidthFine(val);
> +}
> diff --git a/tests/spec/arb_derivative_control/execution/dfdx-coarse.shader_test b/tests/spec/arb_derivative_control/execution/dfdx-coarse.shader_test
> new file mode 100644
> index 0000000..b3205c2
> --- /dev/null
> +++ b/tests/spec/arb_derivative_control/execution/dfdx-coarse.shader_test
> @@ -0,0 +1,22 @@
> +[require]
> +GLSL >= 1.50
> +GL_ARB_derivative_control
> +
> +[vertex shader passthrough]
> +
> +[fragment shader]
> +#extension GL_ARB_derivative_control: require
> +
> +void main()
> +{
> + float xy = gl_FragCoord.x * gl_FragCoord.y;
> + float dx = dFdxCoarse(xy);
> + if (distance(dx, gl_FragCoord.y) <= 1)
> + gl_FragColor = vec4(0, 1, 0, 1);
> + else
> + gl_FragColor = vec4(1, 0, 0, 1);
> +}
> +
> +[test]
> +draw rect -1 -1 2 2
> +probe all rgba 0.0 1.0 0.0 1.0
> diff --git a/tests/spec/arb_derivative_control/execution/dfdx-dfdy.shader_test b/tests/spec/arb_derivative_control/execution/dfdx-dfdy.shader_test
> new file mode 100644
> index 0000000..6f36dc0
> --- /dev/null
> +++ b/tests/spec/arb_derivative_control/execution/dfdx-dfdy.shader_test
> @@ -0,0 +1,22 @@
> +[require]
> +GLSL >= 1.50
> +GL_ARB_derivative_control
> +
> +[vertex shader passthrough]
> +
> +[fragment shader]
> +#extension GL_ARB_derivative_control: require
> +
> +void main()
> +{
> + float xy = gl_FragCoord.x * gl_FragCoord.y;
> + float dxdy = dFdxFine(dFdyFine(xy));
> + if (dxdy == 1)
> + gl_FragColor = vec4(0, 1, 0, 1);
> + else
> + gl_FragColor = vec4(1, 0, 0, 1);
> +}
> +
> +[test]
> +draw rect -1 -1 2 2
> +probe all rgba 0.0 1.0 0.0 1.0
> diff --git a/tests/spec/arb_derivative_control/execution/dfdx-fine.shader_test b/tests/spec/arb_derivative_control/execution/dfdx-fine.shader_test
> new file mode 100644
> index 0000000..e0dbd9f
> --- /dev/null
> +++ b/tests/spec/arb_derivative_control/execution/dfdx-fine.shader_test
> @@ -0,0 +1,26 @@
> +[require]
> +GLSL >= 1.50
> +GL_ARB_derivative_control
> +
> +[vertex shader passthrough]
> +
> +[fragment shader]
> +#extension GL_ARB_derivative_control: require
> +
> +void main()
> +{
> + float x = gl_FragCoord.x;
> + bool alt = bool(int(gl_FragCoord.y) % 2);
> + float altx = alt ? -x : x;
> + float dx = dFdxFine(altx);
> + // Alternating rows are now descending, so check the direction
> + // of the derivative based on the row we're in.
> + if (alt && dx >= 0 || !alt && dx <= 0)
> + gl_FragColor = vec4(1, 0, 0, 1);
> + else
> + gl_FragColor = vec4(0, 1, 0, 1);
> +}
> +
> +[test]
> +draw rect -1 -1 2 2
> +probe all rgba 0.0 1.0 0.0 1.0
> diff --git a/tests/spec/arb_derivative_control/execution/dfdy-coarse.shader_test b/tests/spec/arb_derivative_control/execution/dfdy-coarse.shader_test
> new file mode 100644
> index 0000000..f3a366d
> --- /dev/null
> +++ b/tests/spec/arb_derivative_control/execution/dfdy-coarse.shader_test
> @@ -0,0 +1,22 @@
> +[require]
> +GLSL >= 1.50
> +GL_ARB_derivative_control
> +
> +[vertex shader passthrough]
> +
> +[fragment shader]
> +#extension GL_ARB_derivative_control: require
> +
> +void main()
> +{
> + float xy = gl_FragCoord.x * gl_FragCoord.y;
> + float dy = dFdyCoarse(xy);
> + if (distance(dy, gl_FragCoord.x) <= 1)
> + gl_FragColor = vec4(0, 1, 0, 1);
> + else
> + gl_FragColor = vec4(1, 0, 0, 1);
> +}
> +
> +[test]
> +draw rect -1 -1 2 2
> +probe all rgba 0.0 1.0 0.0 1.0
> diff --git a/tests/spec/arb_derivative_control/execution/dfdy-fine.shader_test b/tests/spec/arb_derivative_control/execution/dfdy-fine.shader_test
> new file mode 100644
> index 0000000..871826d
> --- /dev/null
> +++ b/tests/spec/arb_derivative_control/execution/dfdy-fine.shader_test
> @@ -0,0 +1,26 @@
> +[require]
> +GLSL >= 1.50
> +GL_ARB_derivative_control
> +
> +[vertex shader passthrough]
> +
> +[fragment shader]
> +#extension GL_ARB_derivative_control: require
> +
> +void main()
> +{
> + float y = gl_FragCoord.y;
> + bool alt = bool(int(gl_FragCoord.x) % 2);
> + float alty = alt ? -y : y;
> + float dy = dFdyFine(alty);
> + // Alternating columns are now descending, so check the direction
> + // of the derivative based on the row we're in.
> + if (alt && dy >= 0 || !alt && dy <= 0)
> + gl_FragColor = vec4(1, 0, 0, 1);
> + else
> + gl_FragColor = vec4(0, 1, 0, 1);
> +}
> +
> +[test]
> +draw rect -1 -1 2 2
> +probe all rgba 0.0 1.0 0.0 1.0
> --
> 1.8.5.5
>
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