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Add queries to get the glsl_type of a row or column of a matrix

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This commit is contained in:
Ian Romanick 2010-03-25 11:42:45 -07:00
parent 664da2510a
commit 252127c379
1 changed files with 34 additions and 6 deletions
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40
glsl_types.h
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@ -39,6 +39,12 @@
#define GLSL_TYPE_VOID 8
#define GLSL_TYPE_ERROR 9
extern const struct glsl_type *const glsl_error_type;
extern const struct glsl_type *const glsl_int_type;
extern const struct glsl_type *const glsl_uint_type;
extern const struct glsl_type *const glsl_float_type;
extern const struct glsl_type *const glsl_bool_type;
#define is_numeric_base_type(b) \
(((b) >= GLSL_TYPE_UINT) && ((b) <= GLSL_TYPE_FLOAT))
@ -223,6 +229,34 @@ struct glsl_type {
return base_type == GLSL_TYPE_ERROR;
}
/**
* Query the full type of a matrix row
*
* \return
* If the type is not a matrix, \c glsl_error_type is returned. Otherwise
* a type matching the rows of the matrix is returned.
*/
const glsl_type *row_type() const
{
return is_matrix()
? get_instance(base_type, matrix_rows, 1)
: glsl_error_type;
}
/**
* Query the full type of a matrix column
*
* \return
* If the type is not a matrix, \c glsl_error_type is returned. Otherwise
* a type matching the columns of the matrix is returned.
*/
const glsl_type *column_type() const
{
return is_matrix()
? get_instance(base_type, vector_elements, 1)
: glsl_error_type;
}
private:
/**
* \name Pointers to various type singletons
@ -254,12 +288,6 @@ extern "C" {
extern void
_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state);
extern const struct glsl_type *const glsl_error_type;
extern const struct glsl_type *const glsl_int_type;
extern const struct glsl_type *const glsl_uint_type;
extern const struct glsl_type *const glsl_float_type;
extern const struct glsl_type *const glsl_bool_type;
#ifdef __cplusplus
}
#endif