/*
 * Mesa 3-D graphics library
 * Version:  6.5
 *
 * 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.
 */

#if !defined SLANG_COMPILE_VARIABLE_H
#define SLANG_COMPILE_VARIABLE_H

#include "slang_export.h"

#if defined __cplusplus
extern "C" {
#endif

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;

typedef enum slang_type_specifier_type_
{
	slang_spec_void,
	slang_spec_bool,
	slang_spec_bvec2,
	slang_spec_bvec3,
	slang_spec_bvec4,
	slang_spec_int,
	slang_spec_ivec2,
	slang_spec_ivec3,
	slang_spec_ivec4,
	slang_spec_float,
	slang_spec_vec2,
	slang_spec_vec3,
	slang_spec_vec4,
	slang_spec_mat2,
	slang_spec_mat3,
	slang_spec_mat4,
	slang_spec_sampler1D,
	slang_spec_sampler2D,
	slang_spec_sampler3D,
	slang_spec_samplerCube,
	slang_spec_sampler1DShadow,
	slang_spec_sampler2DShadow,
	slang_spec_struct,
	slang_spec_array
} slang_type_specifier_type;

slang_type_specifier_type slang_type_specifier_type_from_string (const char *);
const char *slang_type_specifier_type_to_string (slang_type_specifier_type);

typedef struct slang_type_specifier_
{
	slang_type_specifier_type type;
	struct slang_struct_ *_struct;			/* type: spec_struct */
	struct slang_type_specifier_ *_array;	/* type: spec_array */
} slang_type_specifier;

int slang_type_specifier_construct (slang_type_specifier *);
void slang_type_specifier_destruct (slang_type_specifier *);
int slang_type_specifier_copy (slang_type_specifier *, const slang_type_specifier *);
int slang_type_specifier_equal (const slang_type_specifier *, const slang_type_specifier *);

typedef struct slang_fully_specified_type_
{
	slang_type_qualifier qualifier;
	slang_type_specifier specifier;
} slang_fully_specified_type;

int slang_fully_specified_type_construct (slang_fully_specified_type *);
void slang_fully_specified_type_destruct (slang_fully_specified_type *);
int slang_fully_specified_type_copy (slang_fully_specified_type *, const slang_fully_specified_type *);

typedef struct slang_variable_scope_
{
	struct slang_variable_ *variables;
	unsigned int num_variables;
	struct slang_variable_scope_ *outer_scope;
} slang_variable_scope;

int slang_variable_scope_construct (slang_variable_scope *);
void slang_variable_scope_destruct (slang_variable_scope *);
int slang_variable_scope_copy (slang_variable_scope *, const slang_variable_scope *);

typedef struct slang_variable_
{
	slang_fully_specified_type type;
	slang_atom a_name;
	GLuint array_len;					/* type: spec_array */
	struct slang_operation_ *initializer;
	unsigned int address;
	unsigned int size;
	int global;
} slang_variable;

int slang_variable_construct (slang_variable *);
void slang_variable_destruct (slang_variable *);
int slang_variable_copy (slang_variable *, const slang_variable *);

slang_variable *_slang_locate_variable (slang_variable_scope *, slang_atom a_name, GLboolean all);

typedef struct
{
	slang_export_data_quant *quant;
	char *name;
} slang_active_uniform;

typedef struct
{
	slang_active_uniform *table;
	GLuint count;
} slang_active_uniforms;

GLvoid slang_active_uniforms_ctr (slang_active_uniforms *);
GLvoid slang_active_uniforms_dtr (slang_active_uniforms *);
GLboolean slang_active_uniforms_add (slang_active_uniforms *, slang_export_data_quant *,
	const char *);

GLboolean _slang_build_export_data_table (slang_export_data_table *, slang_variable_scope *);

GLboolean _slang_gather_active_uniforms (slang_active_uniforms *, slang_export_data_table *);

#ifdef __cplusplus
}
#endif

#endif