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/*
* Mesa 3-D graphics library
* Version: 6.5.2
*
* Copyright (C) 2005-2006 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SLANG_COMPILE_VARIABLE_H
#define SLANG_COMPILE_VARIABLE_H
#if defined __cplusplus
extern "C" {
#endif
struct slang_ir_storage_;
typedef enum slang_type_variant_
{
SLANG_VARIANT, /* the default */
SLANG_INVARIANT /* indicates the "invariant" keyword */
} slang_type_variant;
typedef enum slang_type_centroid_
{
SLANG_CENTER, /* the default */
SLANG_CENTROID /* indicates the "centroid" keyword */
} slang_type_centroid;
typedef enum slang_type_qualifier_
{
SLANG_QUAL_NONE,
SLANG_QUAL_CONST,
SLANG_QUAL_ATTRIBUTE,
SLANG_QUAL_VARYING,
SLANG_QUAL_UNIFORM,
SLANG_QUAL_OUT,
SLANG_QUAL_INOUT,
SLANG_QUAL_FIXEDOUTPUT, /* internal */
SLANG_QUAL_FIXEDINPUT /* internal */
} slang_type_qualifier;
extern slang_type_specifier_type
slang_type_specifier_type_from_string(const char *);
extern const char *
slang_type_specifier_type_to_string(slang_type_specifier_type);
typedef enum slang_type_precision_
{
SLANG_PREC_DEFAULT,
SLANG_PREC_LOW,
SLANG_PREC_MEDIUM,
SLANG_PREC_HIGH
} slang_type_precision;
typedef struct slang_fully_specified_type_
{
slang_type_qualifier qualifier;
slang_type_specifier specifier;
slang_type_precision precision;
slang_type_variant variant;
slang_type_centroid centroid;
GLint array_len; /**< -1 if not an array type */
} slang_fully_specified_type;
extern int
slang_fully_specified_type_construct(slang_fully_specified_type *);
extern void
slang_fully_specified_type_destruct(slang_fully_specified_type *);
extern int
slang_fully_specified_type_copy(slang_fully_specified_type *,
const slang_fully_specified_type *);
/**
* A shading language program variable.
*/
typedef struct slang_variable_
{
slang_fully_specified_type type; /**< Variable's data type */
slang_atom a_name; /**< The variable's name (char *) */
GLuint array_len; /**< only if type == SLANG_SPEC_ARRAy */
struct slang_operation_ *initializer; /**< Optional initializer code */
GLuint address; /**< Storage location */
GLuint size; /**< Variable's size in bytes */
GLboolean isTemp; /**< a named temporary (__resultTmp) */
GLboolean declared; /**< for debug */
struct slang_ir_storage_ *store; /**< Storage for this var */
} slang_variable;
/**
* Basically a list of variables, with a pointer to the parent scope.
*/
typedef struct slang_variable_scope_
{
slang_variable **variables; /**< Array [num_variables] of ptrs to vars */
GLuint num_variables;
struct slang_variable_scope_ *outer_scope;
} slang_variable_scope;
extern slang_variable_scope *
_slang_variable_scope_new(slang_variable_scope *parent);
extern GLvoid
_slang_variable_scope_ctr(slang_variable_scope *);
extern void
slang_variable_scope_destruct(slang_variable_scope *);
extern int
slang_variable_scope_copy(slang_variable_scope *,
const slang_variable_scope *);
extern slang_variable *
slang_variable_scope_grow(slang_variable_scope *);
extern int
slang_variable_construct(slang_variable *);
extern void
slang_variable_destruct(slang_variable *);
extern int
slang_variable_copy(slang_variable *, const slang_variable *);
extern slang_variable *
_slang_locate_variable(const slang_variable_scope *, const slang_atom a_name,
GLboolean all);
#ifdef __cplusplus
}
#endif
#endif /* SLANG_COMPILE_VARIABLE_H */
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