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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_FUNCTION_H
#define SLANG_COMPILE_FUNCTION_H
#if defined __cplusplus
extern "C" {
#endif
struct slang_code_unit_;
/**
* Types of functions.
*/
typedef enum slang_function_kind_
{
slang_func_ordinary,
slang_func_constructor,
slang_func_operator
} slang_function_kind;
/**
* When we need to fill in addresses which we won't know until the future,
* we keep track of them with a fix-up table.
*/
typedef struct slang_fixup_table_
{
GLuint *table; /**< array[count] of addresses */
GLuint count;
} slang_fixup_table;
extern void slang_fixup_table_init(slang_fixup_table *);
extern void slang_fixup_table_free(slang_fixup_table *);
extern GLboolean slang_fixup_save(slang_fixup_table *fixups, GLuint address);
/**
* Description of a compiled shader function.
*/
typedef struct slang_function_
{
slang_function_kind kind;
slang_variable header; /**< The function's name and return type */
slang_variable_scope *parameters; /**< formal parameters AND local vars */
unsigned int param_count; /**< number of formal params (no locals) */
slang_operation *body; /**< The instruction tree */
unsigned int address; /**< Address of this func in memory */
slang_fixup_table fixups; /**< Mem locations which need func's address */
slang_atom end_label; /**< The end-of-function label */
} slang_function;
extern int slang_function_construct(slang_function *);
extern void slang_function_destruct(slang_function *);
/**
* Basically, a list of compiled functions.
*/
typedef struct slang_function_scope_
{
slang_function *functions;
GLuint num_functions;
struct slang_function_scope_ *outer_scope;
} slang_function_scope;
extern GLvoid
_slang_function_scope_ctr(slang_function_scope *);
extern void
slang_function_scope_destruct(slang_function_scope *);
extern GLboolean
_slang_function_has_return_value(const slang_function *fun);
extern int
slang_function_scope_find_by_name(slang_function_scope *, slang_atom, int);
extern slang_function *
slang_function_scope_find(slang_function_scope *, slang_function *, int);
#ifdef __cplusplus
}
#endif
#endif /* SLANG_COMPILE_FUNCTION_H */
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