Reviewed-by: Marek Olšák <[email protected]> Marek
On Mon, Jun 13, 2016 at 12:19 PM, Nicolai Hähnle <[email protected]> wrote: > Based on the test in https://bugs.freedesktop.org/show_bug.cgi?id=95130 > which exposed an error in radeonsi non-monolithic fragment shaders. > --- > .../execution/fs-fwidth-color.shader_test | 44 > ++++++++++++++++++++++ > 1 file changed, 44 insertions(+) > create mode 100644 tests/spec/glsl-1.30/execution/fs-fwidth-color.shader_test > > diff --git a/tests/spec/glsl-1.30/execution/fs-fwidth-color.shader_test > b/tests/spec/glsl-1.30/execution/fs-fwidth-color.shader_test > new file mode 100644 > index 0000000..c5d050b > --- /dev/null > +++ b/tests/spec/glsl-1.30/execution/fs-fwidth-color.shader_test > @@ -0,0 +1,44 @@ > +# Tests that fwidth (as a stand-in for derivatives more generally) works > +# correctly with gl_Color along boundary pixels. > +# > +# A rotated triangle is drawn with a constant color, with the fragment > +# shader returning fwidth(color) -- that is, all drawn pixels should be > +# black. > +# > +# See https://bugs.freedesktop.org/show_bug.cgi?id=95130 > +# > +[require] > +GLSL >= 1.30 > +GL_ARB_explicit_attrib_location > + > +[vertex shader] > +#version 130 > + > +in vec4 piglit_vertex; > + > +void main() > +{ > + float pi = 3.141592653589793; > + float rotation = 0.13; > + float angle = float(gl_VertexID) * (2 * pi / 3) + rotation; > + gl_Position = vec4(sin(angle), -cos(angle), 0.5, 1.0); > + gl_FrontColor = vec4(0.5); > +} > + > +[fragment shader] > +#version 130 > +#extension GL_ARB_explicit_attrib_location : enable > + > +layout(location = 0) out vec4 outcolor; > +in vec4 attrib; > + > +void main() > +{ > + outcolor = fwidth(gl_Color); > +} > + > +[test] > +clear color 0.0 0.0 0.0 0.0 > +clear > +draw arrays GL_TRIANGLES 0 3 > +probe all rgba 0 0 0 0 > -- > 2.7.4 > > _______________________________________________ > Piglit mailing list > [email protected] > https://lists.freedesktop.org/mailman/listinfo/piglit _______________________________________________ Piglit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/piglit
