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authorKenneth Graunke <[email protected]>2013-07-15 22:20:03 -0700
committerKenneth Graunke <[email protected]>2013-07-18 16:57:23 -0700
commit0418846a07b02d39e129987580e7ea50fb422ee0 (patch)
treed55b179c77f58bfd17addbbaf3015d4d78213329
parent7f6a2d6937e837e06d9e22d173d996397ff4cacf (diff)
glsl: Parse the "binding" keyword and store it in ast_type_qualifier.
Nothing actually uses this yet. v2: Remove >= 0 checks. They'll be handled in later validation. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Paul Berry <[email protected]>
-rw-r--r--src/glsl/ast.h14
-rw-r--r--src/glsl/ast_type.cpp6
-rw-r--r--src/glsl/glsl_parser.yy6
3 files changed, 25 insertions, 1 deletions
diff --git a/src/glsl/ast.h b/src/glsl/ast.h
index 6aede009c8c..d98f1a39b47 100644
--- a/src/glsl/ast.h
+++ b/src/glsl/ast.h
@@ -413,6 +413,12 @@ struct ast_type_qualifier {
*/
unsigned explicit_index:1;
+ /**
+ * Flag set if GL_ARB_shading_language_420pack "binding" layout
+ * qualifier is used.
+ */
+ unsigned explicit_binding:1;
+
/** \name Layout qualifiers for GL_AMD_conservative_depth */
/** \{ */
unsigned depth_any:1;
@@ -456,6 +462,14 @@ struct ast_type_qualifier {
int index;
/**
+ * Binding specified via GL_ARB_shading_language_420pack's "binding" keyword.
+ *
+ * \note
+ * This field is only valid if \c explicit_binding is set.
+ */
+ int binding;
+
+ /**
* Return true if and only if an interpolation qualifier is present.
*/
bool has_interpolation() const;
diff --git a/src/glsl/ast_type.cpp b/src/glsl/ast_type.cpp
index 4cbb835ee1e..275b2a1d0ac 100644
--- a/src/glsl/ast_type.cpp
+++ b/src/glsl/ast_type.cpp
@@ -71,7 +71,8 @@ ast_type_qualifier::has_layout() const
|| this->flags.q.row_major
|| this->flags.q.packed
|| this->flags.q.explicit_location
- || this->flags.q.explicit_index;
+ || this->flags.q.explicit_index
+ || this->flags.q.explicit_binding;
}
bool
@@ -145,6 +146,9 @@ ast_type_qualifier::merge_qualifier(YYLTYPE *loc,
if (q.flags.q.explicit_index)
this->index = q.index;
+ if (q.flags.q.explicit_binding)
+ this->binding = q.binding;
+
return true;
}
diff --git a/src/glsl/glsl_parser.yy b/src/glsl/glsl_parser.yy
index b73ec6b3e19..cbd94b41f82 100644
--- a/src/glsl/glsl_parser.yy
+++ b/src/glsl/glsl_parser.yy
@@ -1254,6 +1254,12 @@ layout_qualifier_id:
}
}
+ if (state->ARB_shading_language_420pack_enable &&
+ strcmp("binding", $1) == 0) {
+ $$.flags.q.explicit_binding = 1;
+ $$.binding = $3;
+ }
+
/* If the identifier didn't match any known layout identifiers,
* emit an error.
*/