Mesa (master): glsl: Keep track of location for interface block fields.
Paul Berry
stereotype441 at kemper.freedesktop.org
Tue Oct 8 19:59:54 UTC 2013
Module: Mesa
Branch: master
Commit: 378ff1dbac8c01f2524282b5caa81e4296ee296e
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=378ff1dbac8c01f2524282b5caa81e4296ee296e
Author: Paul Berry <stereotype441 at gmail.com>
Date: Mon Sep 9 16:39:47 2013 -0700
glsl: Keep track of location for interface block fields.
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.
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>
---
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 0859d9e..275d780 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 7019185..5ad5683 100644
--- a/src/glsl/lower_named_interface_blocks.cpp
+++ b/src/glsl/lower_named_interface_blocks.cpp
@@ -150,6 +150,7 @@ 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,
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