[Mesa-dev] [PATCH 1/4] glsl: Keep track of location for interface block fields.
Jordan Justen
jljusten at gmail.com
Tue Oct 8 11:11:17 PDT 2013
Series Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>
On Sat, Sep 14, 2013 at 1:00 PM, Paul Berry <stereotype441 at gmail.com> wrote:
> This patch adds a "location" element to struct glsl_struct_field, so
> that we can keep track of the gl_varying_slot associated with each
> built-in geometry shader input.
>
> In lower_named_interface_blocks, we use this value to populate the
> "location" field in the ir_variable that stores each geometry shader
> input.
> ---
> src/glsl/ast_to_hir.cpp | 1 +
> src/glsl/builtin_types.cpp | 74 +++++++++++++++----------------
> src/glsl/glsl_types.cpp | 2 +
> src/glsl/glsl_types.h | 9 ++++
> src/glsl/lower_named_interface_blocks.cpp | 1 +
> 5 files changed, 50 insertions(+), 37 deletions(-)
>
> diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
> index 2316cf8..c156009 100644
> --- a/src/glsl/ast_to_hir.cpp
> +++ b/src/glsl/ast_to_hir.cpp
> @@ -4491,6 +4491,7 @@ ast_process_structure_or_interface_block(exec_list *instructions,
> }
> fields[i].type = field_type;
> fields[i].name = decl->identifier;
> + fields[i].location = -1;
>
> if (qual->flags.q.row_major || qual->flags.q.column_major) {
> if (!qual->flags.q.uniform) {
> diff --git a/src/glsl/builtin_types.cpp b/src/glsl/builtin_types.cpp
> index 722eda2..1a5e5a1 100644
> --- a/src/glsl/builtin_types.cpp
> +++ b/src/glsl/builtin_types.cpp
> @@ -53,64 +53,64 @@
> &glsl_type::_struct_##NAME##_type;
>
> static const struct glsl_struct_field gl_DepthRangeParameters_fields[] = {
> - { glsl_type::float_type, "near", false },
> - { glsl_type::float_type, "far", false },
> - { glsl_type::float_type, "diff", false },
> + { glsl_type::float_type, "near", false, -1 },
> + { glsl_type::float_type, "far", false, -1 },
> + { glsl_type::float_type, "diff", false, -1 },
> };
>
> static const struct glsl_struct_field gl_PointParameters_fields[] = {
> - { glsl_type::float_type, "size", false },
> - { glsl_type::float_type, "sizeMin", false },
> - { glsl_type::float_type, "sizeMax", false },
> - { glsl_type::float_type, "fadeThresholdSize", false },
> - { glsl_type::float_type, "distanceConstantAttenuation", false },
> - { glsl_type::float_type, "distanceLinearAttenuation", false },
> - { glsl_type::float_type, "distanceQuadraticAttenuation", false },
> + { glsl_type::float_type, "size", false, -1 },
> + { glsl_type::float_type, "sizeMin", false, -1 },
> + { glsl_type::float_type, "sizeMax", false, -1 },
> + { glsl_type::float_type, "fadeThresholdSize", false, -1 },
> + { glsl_type::float_type, "distanceConstantAttenuation", false, -1 },
> + { glsl_type::float_type, "distanceLinearAttenuation", false, -1 },
> + { glsl_type::float_type, "distanceQuadraticAttenuation", false, -1 },
> };
>
> static const struct glsl_struct_field gl_MaterialParameters_fields[] = {
> - { glsl_type::vec4_type, "emission", false },
> - { glsl_type::vec4_type, "ambient", false },
> - { glsl_type::vec4_type, "diffuse", false },
> - { glsl_type::vec4_type, "specular", false },
> - { glsl_type::float_type, "shininess", false },
> + { glsl_type::vec4_type, "emission", false, -1 },
> + { glsl_type::vec4_type, "ambient", false, -1 },
> + { glsl_type::vec4_type, "diffuse", false, -1 },
> + { glsl_type::vec4_type, "specular", false, -1 },
> + { glsl_type::float_type, "shininess", false, -1 },
> };
>
> static const struct glsl_struct_field gl_LightSourceParameters_fields[] = {
> - { glsl_type::vec4_type, "ambient", false },
> - { glsl_type::vec4_type, "diffuse", false },
> - { glsl_type::vec4_type, "specular", false },
> - { glsl_type::vec4_type, "position", false },
> - { glsl_type::vec4_type, "halfVector", false },
> - { glsl_type::vec3_type, "spotDirection", false },
> - { glsl_type::float_type, "spotExponent", false },
> - { glsl_type::float_type, "spotCutoff", false },
> - { glsl_type::float_type, "spotCosCutoff", false },
> - { glsl_type::float_type, "constantAttenuation", false },
> - { glsl_type::float_type, "linearAttenuation", false },
> - { glsl_type::float_type, "quadraticAttenuation", false },
> + { glsl_type::vec4_type, "ambient", false, -1 },
> + { glsl_type::vec4_type, "diffuse", false, -1 },
> + { glsl_type::vec4_type, "specular", false, -1 },
> + { glsl_type::vec4_type, "position", false, -1 },
> + { glsl_type::vec4_type, "halfVector", false, -1 },
> + { glsl_type::vec3_type, "spotDirection", false, -1 },
> + { glsl_type::float_type, "spotExponent", false, -1 },
> + { glsl_type::float_type, "spotCutoff", false, -1 },
> + { glsl_type::float_type, "spotCosCutoff", false, -1 },
> + { glsl_type::float_type, "constantAttenuation", false, -1 },
> + { glsl_type::float_type, "linearAttenuation", false, -1 },
> + { glsl_type::float_type, "quadraticAttenuation", false, -1 },
> };
>
> static const struct glsl_struct_field gl_LightModelParameters_fields[] = {
> - { glsl_type::vec4_type, "ambient", false },
> + { glsl_type::vec4_type, "ambient", false, -1 },
> };
>
> static const struct glsl_struct_field gl_LightModelProducts_fields[] = {
> - { glsl_type::vec4_type, "sceneColor", false },
> + { glsl_type::vec4_type, "sceneColor", false, -1 },
> };
>
> static const struct glsl_struct_field gl_LightProducts_fields[] = {
> - { glsl_type::vec4_type, "ambient", false },
> - { glsl_type::vec4_type, "diffuse", false },
> - { glsl_type::vec4_type, "specular", false },
> + { glsl_type::vec4_type, "ambient", false, -1 },
> + { glsl_type::vec4_type, "diffuse", false, -1 },
> + { glsl_type::vec4_type, "specular", false, -1 },
> };
>
> static const struct glsl_struct_field gl_FogParameters_fields[] = {
> - { glsl_type::vec4_type, "color", false },
> - { glsl_type::float_type, "density", false },
> - { glsl_type::float_type, "start", false },
> - { glsl_type::float_type, "end", false },
> - { glsl_type::float_type, "scale", false },
> + { glsl_type::vec4_type, "color", false, -1 },
> + { glsl_type::float_type, "density", false, -1 },
> + { glsl_type::float_type, "start", false, -1 },
> + { glsl_type::float_type, "end", false, -1 },
> + { glsl_type::float_type, "scale", false, -1 },
> };
>
> #include "builtin_type_macros.h"
> diff --git a/src/glsl/glsl_types.cpp b/src/glsl/glsl_types.cpp
> index 3c396dd..4782d15 100644
> --- a/src/glsl/glsl_types.cpp
> +++ b/src/glsl/glsl_types.cpp
> @@ -100,6 +100,7 @@ glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields,
> this->fields.structure[i].type = fields[i].type;
> this->fields.structure[i].name = ralloc_strdup(this->fields.structure,
> fields[i].name);
> + this->fields.structure[i].location = fields[i].location;
> this->fields.structure[i].row_major = fields[i].row_major;
> }
> }
> @@ -124,6 +125,7 @@ glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields,
> this->fields.structure[i].type = fields[i].type;
> this->fields.structure[i].name = ralloc_strdup(this->fields.structure,
> fields[i].name);
> + this->fields.structure[i].location = fields[i].location;
> this->fields.structure[i].row_major = fields[i].row_major;
> }
> }
> diff --git a/src/glsl/glsl_types.h b/src/glsl/glsl_types.h
> index 9f61eee..61c8635 100644
> --- a/src/glsl/glsl_types.h
> +++ b/src/glsl/glsl_types.h
> @@ -581,6 +581,15 @@ struct glsl_struct_field {
> const struct glsl_type *type;
> const char *name;
> bool row_major;
> +
> + /**
> + * For interface blocks, gl_varying_slot corresponding to the input/output
> + * if this is a built-in input/output (i.e. a member of the built-in
> + * gl_PerVertex interface block); -1 otherwise.
> + *
> + * Ignored for structs.
> + */
> + int location;
> };
>
> static inline unsigned int
> diff --git a/src/glsl/lower_named_interface_blocks.cpp b/src/glsl/lower_named_interface_blocks.cpp
> index 20196a3..2bdce5c 100644
> --- a/src/glsl/lower_named_interface_blocks.cpp
> +++ b/src/glsl/lower_named_interface_blocks.cpp
> @@ -146,6 +146,7 @@ flatten_named_interface_blocks_declarations::run(exec_list *instructions)
> var_name,
> (ir_variable_mode) var->mode);
> }
> + new_var->location = iface_t->fields.structure[i].location;
>
> new_var->interface_type = iface_t;
> hash_table_insert(interface_namespace, new_var,
> --
> 1.8.4
>
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