<p dir="ltr"><br>
On May 12, 2016 9:41 PM, "Jason Ekstrand" <<a href="mailto:jason@jlekstrand.net">jason@jlekstrand.net</a>> wrote:<br>
><br>
><br>
> On May 12, 2016 9:29 PM, "Ilia Mirkin" <<a href="mailto:imirkin@alum.mit.edu">imirkin@alum.mit.edu</a>> wrote:<br>
> ><br>
> > interpolateAt* can only take input variables or an element of an input<br>
> > variable array. No structs.<br>
> ><br>
> > Further, GLSL 4.50 relaxes the requirement to allow swizzles, so enable<br>
> > that as well.<br>
> ><br>
> > This fixes the following dEQP tests:<br>
> ><br>
> > dEQP-GLES31.functional.shaders.multisample_interpolation.interpolate_at_sample.negative.interpolate_struct_member<br>
> > dEQP-GLES31.functional.shaders.multisample_interpolation.interpolate_at_centroid.negative.interpolate_struct_member<br>
> > dEQP-GLES31.functional.shaders.multisample_interpolation.interpolate_at_offset.negative.interpolate_struct_member<br>
> ><br>
> > Signed-off-by: Ilia Mirkin <<a href="mailto:imirkin@alum.mit.edu">imirkin@alum.mit.edu</a>><br>
> > ---<br>
> > src/compiler/glsl/ast_function.cpp | 26 ++++++++++++++++++--------<br>
> > 1 file changed, 18 insertions(+), 8 deletions(-)<br>
> ><br>
> > diff --git a/src/compiler/glsl/ast_function.cpp b/src/compiler/glsl/ast_function.cpp<br>
> > index 4db3dd0..281735b 100644<br>
> > --- a/src/compiler/glsl/ast_function.cpp<br>
> > +++ b/src/compiler/glsl/ast_function.cpp<br>
> > @@ -208,17 +208,27 @@ verify_parameter_modes(_mesa_glsl_parse_state *state,<br>
> ><br>
> > /* Verify that shader_in parameters are shader inputs */<br>
> > if (formal->data.must_be_shader_input) {<br>
> > - ir_variable *var = actual->variable_referenced();<br>
> > - if (!var || var->data.mode != ir_var_shader_in) {<br>
> > - _mesa_glsl_error(&loc, state,<br>
> > - "parameter `%s` must be a shader input",<br>
> > - formal->name);<br>
> > - return false;<br>
> > + const ir_rvalue *val = actual;<br>
> > +<br>
> > + // GLSL 4.50 allows swizzles, while earlier GLSL versions do not.<br>
> > + if (val->ir_type == ir_type_swizzle) {<br>
> > + if (!state->is_version(450, 0)) {<br>
><br>
> What about GLSL 4.60? Not that it exists yet but this doesn't look like a greater-equal.<br>
><br>
> > + _mesa_glsl_error(&loc, state,<br>
> > + "parameter `%s` must not be swizzled",<br>
> > + formal->name);<br>
> > + return false;<br>
> > + }<br>
> > + val = ((ir_swizzle *)val)->val;<br>
> > + }<br>
> > +<br>
> > + while (val->ir_type == ir_type_dereference_array) {<br>
> > + val = ((ir_dereference_array *)val)->array;<br>
><br>
> What about arrays of arrays?</p>
<p dir="ltr">Never mind. It's a while loop. I can't read.</p>
<p dir="ltr">> > }<br>
> ><br>
> > - if (actual->ir_type == ir_type_swizzle) {<br>
> > + if (!val->as_dereference_variable() ||<br>
> > + val->variable_referenced()->data.mode != ir_var_shader_in) {<br>
> > _mesa_glsl_error(&loc, state,<br>
> > - "parameter `%s` must not be swizzled",<br>
> > + "parameter `%s` must be a shader input",<br>
> > formal->name);<br>
> > return false;<br>
> > }<br>
> > --<br>
> > 2.7.3<br>
> ><br>
> > _______________________________________________<br>
> > mesa-dev mailing list<br>
> > <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a><br>
> > <a href="https://lists.freedesktop.org/mailman/listinfo/mesa-dev">https://lists.freedesktop.org/mailman/listinfo/mesa-dev</a><br>
</p>