Reviewed-by: Ilia Mirkin <[email protected]>
On Thu, Nov 12, 2015 at 5:55 PM, Glenn Kennard <[email protected]> wrote: > Tested on r600g implementation > > Signed-off-by: Glenn Kennard <[email protected]> > --- > Ported to desktop GL 4.5 from Ilia's GLES test case, needed since r600g uses > coarse derivatives by default, and shader control over that requires > GL_ARB_derivative_control. > > Changes since v3: > - Removed redundant check for GL_ARB_derivative_control since the functions > are included in 4.5 and already enabled by Mesa when using that version > override. > - Write helper to blue channel which should never be present in framebuffer > output, in order to prevent some false positives. > > .../execution/helper-invocation.shader_test | 27 > ++++++++++++++++++++++ > 1 file changed, 27 insertions(+) > create mode 100644 > tests/spec/glsl-4.50/execution/helper-invocation.shader_test > > diff --git a/tests/spec/glsl-4.50/execution/helper-invocation.shader_test > b/tests/spec/glsl-4.50/execution/helper-invocation.shader_test > new file mode 100644 > index 0000000..ec104c6 > --- /dev/null > +++ b/tests/spec/glsl-4.50/execution/helper-invocation.shader_test > @@ -0,0 +1,27 @@ > +[require] > +GL >= 4.5 > +GLSL >= 4.50 > + > +[vertex shader passthrough] > + > +[fragment shader] > +#version 450 > +out vec4 color; > +void main() { > + float helper = float(gl_HelperInvocation); > + color = vec4(abs(dFdxFine(helper)), abs(dFdyFine(helper)), helper, 1); > +} > + > +[test] > +clear color 0.2 0.2 0.2 0.2 > +clear > + > +# A single pixel being drawn, guaranteed that both the X and Y > +# derivatives will be 1. > +draw rect ortho 0 0 1 1 > +probe rect rgba (0, 0, 1, 1) (1, 1, 0, 1) > + > +# A larger rect being drawn, check that the first 2x2 quad, all of > +# which is definitely going to be covered, actually ended up as all 0's > +draw rect ortho 2 2 10 10 > +probe rect rgba (2, 2, 2, 2) (0, 0, 0, 1) > -- > 1.9.1 > > _______________________________________________ > Piglit mailing list > [email protected] > http://lists.freedesktop.org/mailman/listinfo/piglit _______________________________________________ Piglit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/piglit
