On Tue, 2016-05-31 at 11:52 -0700, Ian Romanick wrote:
> From: Ian Romanick <ian.d.roman...@intel.com>
>
> Our piglit tests for geometry and tessellation shader inputs were
> incorrect. Array shader inputs and output should have '[0]' on the
> end
> regardless of stage. In addtion, transform feedback varyings should
> not.
Is there a spec quote for this? It doesn't seem right to me since for
arrays of arrays would that mean we should end up with gs inputs like
this
input_name[0][0]
input_name[...][0]
input_name[num_vertices-1][0]
otherwise
in vec4 input1[];
and
in vec4 input2[][3];
Would both end up as:
input1[0]
input2[0]
>
> Signed-off-by: Ian Romanick <ian.d.roman...@intel.com>
> Cc: "12.0" <mesa-sta...@lists.freedesktop.org>
> ---
> src/mesa/main/shader_query.cpp | 23 ++++++++++-------------
> 1 file changed, 10 insertions(+), 13 deletions(-)
>
> diff --git a/src/mesa/main/shader_query.cpp
> b/src/mesa/main/shader_query.cpp
> index eec933c..f4b7243 100644
> --- a/src/mesa/main/shader_query.cpp
> +++ b/src/mesa/main/shader_query.cpp
> @@ -696,20 +696,17 @@ _mesa_program_resource_find_index(struct
> gl_shader_program *shProg,
> static bool
> add_index_to_name(struct gl_program_resource *res)
> {
> - bool add_index = !((res->Type == GL_PROGRAM_INPUT &&
> - res->StageReferences & (1 <<
> MESA_SHADER_GEOMETRY |
> - 1 <<
> MESA_SHADER_TESS_CTRL |
> - 1 <<
> MESA_SHADER_TESS_EVAL)) ||
> - (res->Type == GL_PROGRAM_OUTPUT &&
> - res->StageReferences & 1 <<
> MESA_SHADER_TESS_CTRL));
> -
> - /* Transform feedback varyings have array index already appended
> - * in their names.
> - */
> - if (res->Type == GL_TRANSFORM_FEEDBACK_VARYING)
> - add_index = false;
> + if (res->Type != GL_PROGRAM_INPUT && res->Type !=
> GL_PROGRAM_OUTPUT)
> + return res->Type != GL_TRANSFORM_FEEDBACK_VARYING;
I'm slighlty confused by this. When does this return true? And for
transform feedback wont this always end up us false?
So isn't it just
if (res->Type == GL_TRANSFORM_FEEDBACK_VARYING)
return false;
> +
> + const gl_shader_variable *const var = RESOURCE_VAR(res);
>
> - return add_index;
> + assert(var->type->is_array());
> +
> + if (var->interface_type != NULL && var->interface_type-
> >is_array())
> + return var->type->fields.array->is_array();
> +
So I'm assuming your doing this since after lowering block[3].foo we
end up with foo[3]. However something like block[3].foo[2] will end up
as foo[3][2] and blocks can also be arrays of arrays so I'm not sure
this will work.
> + return true;
> }
>
> /* Get name length of a program resource. This consists of
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