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/*
* 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.
*/
#ifndef SLANG_TYPEINFO_H
#define SLANG_TYPEINFO_H 1
#include "main/imports.h"
#include "main/mtypes.h"
#include "slang_log.h"
#include "slang_utility.h"
#include "slang_vartable.h"
struct slang_operation_;
/**
* Holds complete information about vector swizzle - the <swizzle>
* array contains vector component source indices, where 0 is "x", 1
* is "y", 2 is "z" and 3 is "w".
* Example: "xwz" --> { 3, { 0, 3, 2, not used } }.
*/
typedef struct slang_swizzle_
{
GLuint num_components;
GLuint swizzle[4];
} slang_swizzle;
typedef struct slang_name_space_
{
struct slang_function_scope_ *funcs;
struct slang_struct_scope_ *structs;
struct slang_variable_scope_ *vars;
} slang_name_space;
typedef struct slang_assemble_ctx_
{
slang_atom_pool *atoms;
slang_name_space space;
struct gl_program *program;
slang_var_table *vartable;
slang_info_log *log;
struct slang_label_ *curFuncEndLabel;
struct slang_ir_node_ *CurLoop;
struct slang_function_ *CurFunction;
} slang_assemble_ctx;
extern struct slang_function_ *
_slang_locate_function(const struct slang_function_scope_ *funcs,
slang_atom name, struct slang_operation_ *params,
GLuint num_params,
const slang_name_space *space,
slang_atom_pool *atoms, slang_info_log *log,
GLboolean *error);
extern GLboolean
_slang_is_swizzle(const char *field, GLuint rows, slang_swizzle *swz);
extern GLboolean
_slang_is_swizzle_mask(const slang_swizzle *swz, GLuint rows);
extern GLvoid
_slang_multiply_swizzles(slang_swizzle *, const slang_swizzle *,
const slang_swizzle *);
/**
* The basic shading language types (float, vec4, mat3, etc)
*/
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_MAT23,
SLANG_SPEC_MAT32,
SLANG_SPEC_MAT24,
SLANG_SPEC_MAT42,
SLANG_SPEC_MAT34,
SLANG_SPEC_MAT43,
SLANG_SPEC_SAMPLER1D,
SLANG_SPEC_SAMPLER2D,
SLANG_SPEC_SAMPLER3D,
SLANG_SPEC_SAMPLERCUBE,
SLANG_SPEC_SAMPLER2DRECT,
SLANG_SPEC_SAMPLER1DSHADOW,
SLANG_SPEC_SAMPLER2DSHADOW,
SLANG_SPEC_SAMPLER2DRECTSHADOW,
SLANG_SPEC_STRUCT,
SLANG_SPEC_ARRAY
} slang_type_specifier_type;
/**
* Describes more sophisticated types, like structs and arrays.
*/
typedef struct slang_type_specifier_
{
slang_type_specifier_type type;
struct slang_struct_ *_struct; /**< used if type == spec_struct */
struct slang_type_specifier_ *_array; /**< used if type == spec_array */
} slang_type_specifier;
extern GLvoid
slang_type_specifier_ctr(slang_type_specifier *);
extern GLvoid
slang_type_specifier_dtr(slang_type_specifier *);
extern GLboolean
slang_type_specifier_copy(slang_type_specifier *, const slang_type_specifier *);
extern GLboolean
slang_type_specifier_equal(const slang_type_specifier *,
const slang_type_specifier *);
typedef struct slang_typeinfo_
{
GLboolean can_be_referenced;
GLboolean is_swizzled;
slang_swizzle swz;
slang_type_specifier spec;
GLuint array_len;
} slang_typeinfo;
extern GLboolean
slang_typeinfo_construct(slang_typeinfo *);
extern GLvoid
slang_typeinfo_destruct(slang_typeinfo *);
/**
* Retrieves type information about an operation.
* Returns GL_TRUE on success.
* Returns GL_FALSE otherwise.
*/
extern GLboolean
_slang_typeof_operation(const slang_assemble_ctx *,
struct slang_operation_ *,
slang_typeinfo *);
extern GLboolean
_slang_typeof_operation_(struct slang_operation_ *,
const slang_name_space *,
slang_typeinfo *, slang_atom_pool *,
slang_info_log *log);
extern GLboolean
_slang_type_is_matrix(slang_type_specifier_type);
extern GLboolean
_slang_type_is_vector(slang_type_specifier_type);
extern GLboolean
_slang_type_is_float_vec_mat(slang_type_specifier_type);
extern slang_type_specifier_type
_slang_type_base(slang_type_specifier_type);
extern GLuint
_slang_type_dim(slang_type_specifier_type);
extern GLenum
_slang_gltype_from_specifier(const slang_type_specifier *type);
#endif
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