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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.
*/
#if !defined SLANG_ASSEMBLE_H
#define SLANG_ASSEMBLE_H
#include "slang_compile.h"
#if defined __cplusplus
extern "C" {
#endif
typedef enum slang_assembly_type_
{
/* core */
slang_asm_none,
slang_asm_float_copy,
slang_asm_float_move,
slang_asm_float_push,
slang_asm_float_deref,
slang_asm_float_add,
slang_asm_float_multiply,
slang_asm_float_divide,
slang_asm_float_negate,
slang_asm_float_less,
slang_asm_float_equal_exp,
slang_asm_float_equal_int,
slang_asm_float_to_int,
slang_asm_float_sine,
slang_asm_float_arcsine,
slang_asm_float_arctan,
slang_asm_float_power,
slang_asm_float_log2,
slang_asm_float_floor,
slang_asm_float_ceil,
slang_asm_int_copy,
slang_asm_int_move,
slang_asm_int_push,
slang_asm_int_deref,
slang_asm_int_to_float,
slang_asm_int_to_addr,
slang_asm_bool_copy,
slang_asm_bool_move,
slang_asm_bool_push,
slang_asm_bool_deref,
slang_asm_addr_copy,
slang_asm_addr_push,
slang_asm_addr_deref,
slang_asm_addr_add,
slang_asm_addr_multiply,
slang_asm_jump,
slang_asm_jump_if_zero,
slang_asm_enter,
slang_asm_leave,
slang_asm_local_alloc,
slang_asm_local_free,
slang_asm_local_addr,
slang_asm_call,
slang_asm_return,
slang_asm_discard,
slang_asm_exit,
/* mesa-specific extensions */
slang_asm_float_print,
slang_asm_int_print,
slang_asm_bool_print,
slang_asm__last
} slang_assembly_type;
typedef struct slang_assembly_
{
slang_assembly_type type;
GLfloat literal;
GLuint param[2];
} slang_assembly;
typedef struct slang_assembly_file_
{
slang_assembly *code;
unsigned int count;
unsigned int capacity;
} slang_assembly_file;
int slang_assembly_file_construct (slang_assembly_file *);
void slang_assembly_file_destruct (slang_assembly_file *);
int slang_assembly_file_push (slang_assembly_file *, slang_assembly_type);
int slang_assembly_file_push_label (slang_assembly_file *, slang_assembly_type, GLuint);
int slang_assembly_file_push_label2 (slang_assembly_file *, slang_assembly_type, GLuint, GLuint);
int slang_assembly_file_push_literal (slang_assembly_file *, slang_assembly_type, GLfloat);
typedef struct slang_assembly_file_restore_point_
{
unsigned int count;
} slang_assembly_file_restore_point;
int slang_assembly_file_restore_point_save (slang_assembly_file *,
slang_assembly_file_restore_point *);
int slang_assembly_file_restore_point_load (slang_assembly_file *,
slang_assembly_file_restore_point *);
typedef struct slang_assembly_flow_control_
{
unsigned int loop_start; /* for "continue" statement */
unsigned int loop_end; /* for "break" statement */
unsigned int function_end; /* for "return" statement */
} slang_assembly_flow_control;
typedef struct slang_assembly_local_info_
{
unsigned int ret_size;
unsigned int addr_tmp;
unsigned int swizzle_tmp;
} slang_assembly_local_info;
typedef enum
{
slang_ref_force,
slang_ref_forbid,
slang_ref_freelance
} slang_ref_type;
/*
holds a complete information about vector swizzle - the <swizzle> array contains
vector component sources indices, where 0 is "x", 1 is "y", ...
example: "xwz" --> { 3, { 0, 3, 2, n/u } }
*/
typedef struct slang_swizzle_
{
unsigned int num_components;
unsigned int swizzle[4];
} slang_swizzle;
typedef struct slang_assembly_stack_info_
{
slang_swizzle swizzle;
} slang_assembly_stack_info;
typedef struct slang_assembly_name_space_
{
struct slang_function_scope_ *funcs;
struct slang_struct_scope_ *structs;
struct slang_variable_scope_ *vars;
} slang_assembly_name_space;
typedef struct slang_assemble_ctx_
{
slang_assembly_file *file;
struct slang_machine_ *mach;
slang_atom_pool *atoms;
slang_assembly_name_space space;
slang_assembly_flow_control flow;
slang_assembly_local_info local;
slang_ref_type ref;
slang_assembly_stack_info swz;
} slang_assemble_ctx;
slang_function *_slang_locate_function (slang_function_scope *funcs, slang_atom a_name,
slang_operation *params, unsigned int num_params, slang_assembly_name_space *space,
slang_atom_pool *);
int _slang_assemble_function (slang_assemble_ctx *, struct slang_function_ *);
int _slang_cleanup_stack (slang_assembly_file *, slang_operation *, int ref,
slang_assembly_name_space *, struct slang_machine_ *, slang_atom_pool *);
int _slang_cleanup_stack_ (slang_assemble_ctx *, slang_operation *);
int _slang_dereference (slang_assembly_file *, slang_operation *, slang_assembly_name_space *,
slang_assembly_local_info *, struct slang_machine_ *, slang_atom_pool *);
int _slang_assemble_function_call (slang_assemble_ctx *, slang_function *,
slang_operation *, GLuint, GLboolean);
int _slang_assemble_function_call_name (slang_assemble_ctx *, const char *,
slang_operation *, GLuint, GLboolean);
int _slang_assemble_operation (slang_assembly_file *, struct slang_operation_ *, int reference,
slang_assembly_flow_control *, slang_assembly_name_space *, slang_assembly_local_info *,
slang_assembly_stack_info *, struct slang_machine_ *, slang_atom_pool *);
int _slang_assemble_operation_ (slang_assemble_ctx *, struct slang_operation_ *, slang_ref_type);
#ifdef __cplusplus
}
#endif
#endif
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