diff options
Diffstat (limited to 'src/glsl/ast.h')
| -rw-r--r-- | src/glsl/ast.h | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/src/glsl/ast.h b/src/glsl/ast.h index cd933cfc588..0e2811ca665 100644 --- a/src/glsl/ast.h +++ b/src/glsl/ast.h @@ -318,7 +318,8 @@ public: enum { - ast_precision_high = 0, /**< Default precision. */ + ast_precision_none = 0, /**< Absence of precision qualifier. */ + ast_precision_high, ast_precision_medium, ast_precision_low }; @@ -364,6 +365,23 @@ struct ast_type_qualifier { * This field is only valid if \c explicit_location is set. */ unsigned location; + + /** + * Return true if and only if an interpolation qualifier is present. + */ + bool has_interpolation() const; + + /** + * \brief Return string representation of interpolation qualifier. + * + * If an interpolation qualifier is present, then return that qualifier's + * string representation. Otherwise, return null. For example, if the + * noperspective bit is set, then this returns "noperspective". + * + * If multiple interpolation qualifiers are somehow present, then the + * returned string is undefined but not null. + */ + const char *interpolation_string() const; }; class ast_struct_specifier : public ast_node { @@ -444,7 +462,8 @@ public: /** Construct a type specifier from a type name */ ast_type_specifier(const char *name) : type_specifier(ast_type_name), type_name(name), structure(NULL), - is_array(false), array_size(NULL), precision(ast_precision_high) + is_array(false), array_size(NULL), precision(ast_precision_none), + is_precision_statement(false) { /* empty */ } @@ -452,7 +471,8 @@ public: /** Construct a type specifier from a structure definition */ ast_type_specifier(ast_struct_specifier *s) : type_specifier(ast_struct), type_name(s->name), structure(s), - is_array(false), array_size(NULL), precision(ast_precision_high) + is_array(false), array_size(NULL), precision(ast_precision_none), + is_precision_statement(false) { /* empty */ } @@ -474,6 +494,8 @@ public: ast_expression *array_size; unsigned precision:2; + + bool is_precision_statement; }; |