diff options
Diffstat (limited to 'src/glsl/ir.h')
| -rw-r--r-- | src/glsl/ir.h | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/src/glsl/ir.h b/src/glsl/ir.h index a3f9f058863..55535b2f5ce 100644 --- a/src/glsl/ir.h +++ b/src/glsl/ir.h @@ -201,7 +201,8 @@ public: * for vector and scalar types that have all elements set to the value * zero (or \c false for booleans). * - * \sa ir_constant::has_value, ir_rvalue::is_one, ir_rvalue::is_negative_one + * \sa ir_constant::has_value, ir_rvalue::is_one, ir_rvalue::is_negative_one, + * ir_constant::is_basis */ virtual bool is_zero() const; @@ -213,7 +214,8 @@ public: * for vector and scalar types that have all elements set to the value * one (or \c true for booleans). * - * \sa ir_constant::has_value, ir_rvalue::is_zero, ir_rvalue::is_negative_one + * \sa ir_constant::has_value, ir_rvalue::is_zero, ir_rvalue::is_negative_one, + * ir_constant::is_basis */ virtual bool is_one() const; @@ -223,12 +225,27 @@ public: * The base implementation of this function always returns \c false. The * \c ir_constant class over-rides this function to return \c true \b only * for vector and scalar types that have all elements set to the value - * negative one. For boolean times, the result is always \c false. + * negative one. For boolean types, the result is always \c false. * * \sa ir_constant::has_value, ir_rvalue::is_zero, ir_rvalue::is_one + * ir_constant::is_basis */ virtual bool is_negative_one() const; + /** + * Determine if an r-value is a basis vector + * + * The base implementation of this function always returns \c false. The + * \c ir_constant class over-rides this function to return \c true \b only + * for vector and scalar types that have one element set to the value one, + * and the other elements set to the value zero. For boolean types, the + * result is always \c false. + * + * \sa ir_constant::has_value, ir_rvalue::is_zero, ir_rvalue::is_one, + * is_constant::is_negative_one + */ + virtual bool is_basis() const; + /** * Return a generic value of error_type. @@ -1743,13 +1760,14 @@ public: * Determine whether a constant has the same value as another constant * * \sa ir_constant::is_zero, ir_constant::is_one, - * ir_constant::is_negative_one + * ir_constant::is_negative_one, ir_constant::is_basis */ bool has_value(const ir_constant *) const; virtual bool is_zero() const; virtual bool is_one() const; virtual bool is_negative_one() const; + virtual bool is_basis() const; /** * Value of the constant. |