mirror of https://gitlab.freedesktop.org/mesa/mesa
512 lines
11 KiB
C
512 lines
11 KiB
C
|
/*
|
|||
|
* Copyright © 2009 Intel Corporation
|
|||
|
*
|
|||
|
* 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 (including the next
|
|||
|
* paragraph) 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
|
|||
|
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
|
|||
|
*/
|
|||
|
|
|||
|
#pragma once
|
|||
|
#ifndef AST_H
|
|||
|
#define AST_H
|
|||
|
|
|||
|
#include "main/simple_list.h"
|
|||
|
#include "glsl_parser_extras.h"
|
|||
|
|
|||
|
struct ir_instruction;
|
|||
|
struct _mesa_glsl_parse_state;
|
|||
|
|
|||
|
struct YYLTYPE;
|
|||
|
|
|||
|
#define _mesa_ast_print(n) \
|
|||
|
((ast_node *) n)->print()
|
|||
|
|
|||
|
#define _mesa_ast_to_hir(n, instr, s) \
|
|||
|
((struct ast_node *) n)->vtbl->to_hir((struct ast_node *) n, instr, s)
|
|||
|
|
|||
|
#define _mesa_ast_function_call_to_hir(n, p, s) \
|
|||
|
((struct ast_node *) n)->vtbl->function_call_to_hir( \
|
|||
|
(struct ast_node *) n, \
|
|||
|
(struct ast_node *) p, \
|
|||
|
s)
|
|||
|
|
|||
|
class ast_node : public simple_node {
|
|||
|
public:
|
|||
|
virtual ~ast_node();
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
/**
|
|||
|
* Retrieve the source location of an AST node
|
|||
|
*
|
|||
|
* This function is primarily used to get the source position of an AST node
|
|||
|
* into a form that can be passed to \c _mesa_glsl_error.
|
|||
|
*
|
|||
|
* \sa _mesa_glsl_error, ast_node::set_location
|
|||
|
*/
|
|||
|
struct YYLTYPE get_location(void) const
|
|||
|
{
|
|||
|
struct YYLTYPE locp;
|
|||
|
|
|||
|
locp.source = this->location.source;
|
|||
|
locp.first_line = this->location.line;
|
|||
|
locp.first_column = this->location.column;
|
|||
|
locp.last_line = locp.first_line;
|
|||
|
locp.last_column = locp.first_column;
|
|||
|
|
|||
|
return locp;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Set the source location of an AST node from a parser location
|
|||
|
*
|
|||
|
* \sa ast_node::get_location
|
|||
|
*/
|
|||
|
void set_location(const struct YYLTYPE *locp)
|
|||
|
{
|
|||
|
this->location.source = locp->source;
|
|||
|
this->location.line = locp->first_line;
|
|||
|
this->location.column = locp->first_column;
|
|||
|
}
|
|||
|
|
|||
|
|
|||
|
int type;
|
|||
|
|
|||
|
struct {
|
|||
|
unsigned source;
|
|||
|
unsigned line;
|
|||
|
unsigned column;
|
|||
|
} location;
|
|||
|
|
|||
|
protected:
|
|||
|
ast_node(void);
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
enum ast_operators {
|
|||
|
ast_assign,
|
|||
|
ast_plus, /**< Unary + operator. */
|
|||
|
ast_neg,
|
|||
|
ast_add,
|
|||
|
ast_sub,
|
|||
|
ast_mul,
|
|||
|
ast_div,
|
|||
|
ast_mod,
|
|||
|
ast_lshift,
|
|||
|
ast_rshift,
|
|||
|
ast_less,
|
|||
|
ast_greater,
|
|||
|
ast_lequal,
|
|||
|
ast_gequal,
|
|||
|
ast_equal,
|
|||
|
ast_nequal,
|
|||
|
ast_bit_and,
|
|||
|
ast_bit_xor,
|
|||
|
ast_bit_or,
|
|||
|
ast_bit_not,
|
|||
|
ast_logic_and,
|
|||
|
ast_logic_xor,
|
|||
|
ast_logic_or,
|
|||
|
ast_logic_not,
|
|||
|
|
|||
|
ast_mul_assign,
|
|||
|
ast_div_assign,
|
|||
|
ast_mod_assign,
|
|||
|
ast_add_assign,
|
|||
|
ast_sub_assign,
|
|||
|
ast_ls_assign,
|
|||
|
ast_rs_assign,
|
|||
|
ast_and_assign,
|
|||
|
ast_xor_assign,
|
|||
|
ast_or_assign,
|
|||
|
|
|||
|
ast_conditional,
|
|||
|
|
|||
|
ast_pre_inc,
|
|||
|
ast_pre_dec,
|
|||
|
ast_post_inc,
|
|||
|
ast_post_dec,
|
|||
|
ast_field_selection,
|
|||
|
ast_array_index,
|
|||
|
|
|||
|
ast_function_call,
|
|||
|
|
|||
|
ast_identifier,
|
|||
|
ast_int_constant,
|
|||
|
ast_uint_constant,
|
|||
|
ast_float_constant,
|
|||
|
ast_bool_constant,
|
|||
|
|
|||
|
ast_sequence
|
|||
|
};
|
|||
|
|
|||
|
class ast_expression : public ast_node {
|
|||
|
public:
|
|||
|
ast_expression(int oper, ast_expression *,
|
|||
|
ast_expression *, ast_expression *);
|
|||
|
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
enum ast_operators oper;
|
|||
|
|
|||
|
ast_expression *subexpressions[3];
|
|||
|
|
|||
|
union {
|
|||
|
char *identifier;
|
|||
|
int int_constant;
|
|||
|
float float_constant;
|
|||
|
unsigned uint_constant;
|
|||
|
int bool_constant;
|
|||
|
} primary_expression;
|
|||
|
|
|||
|
|
|||
|
/**
|
|||
|
* List of expressions for an \c ast_sequence.
|
|||
|
*/
|
|||
|
struct simple_node expressions;
|
|||
|
};
|
|||
|
|
|||
|
/**
|
|||
|
* Number of possible operators for an ast_expression
|
|||
|
*
|
|||
|
* This is done as a define instead of as an additional value in the enum so
|
|||
|
* that the compiler won't generate spurious messages like "warning:
|
|||
|
* enumeration value ‘ast_num_operators’ not handled in switch"
|
|||
|
*/
|
|||
|
#define AST_NUM_OPERATORS (ast_sequence + 1)
|
|||
|
|
|||
|
|
|||
|
class ast_compound_statement : public ast_node {
|
|||
|
public:
|
|||
|
ast_compound_statement(int new_scope, ast_node *statements);
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
int new_scope;
|
|||
|
struct simple_node statements;
|
|||
|
};
|
|||
|
|
|||
|
class ast_declaration : public ast_node {
|
|||
|
public:
|
|||
|
ast_declaration(char *identifier, int is_array, ast_expression *array_size,
|
|||
|
ast_expression *initializer);
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
char *identifier;
|
|||
|
|
|||
|
int is_array;
|
|||
|
ast_expression *array_size;
|
|||
|
|
|||
|
ast_expression *initializer;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
enum {
|
|||
|
ast_precision_high = 0, /**< Default precision. */
|
|||
|
ast_precision_medium,
|
|||
|
ast_precision_low
|
|||
|
};
|
|||
|
|
|||
|
struct ast_type_qualifier {
|
|||
|
unsigned invariant:1;
|
|||
|
unsigned constant:1;
|
|||
|
unsigned attribute:1;
|
|||
|
unsigned varying:1;
|
|||
|
unsigned in:1;
|
|||
|
unsigned out:1;
|
|||
|
unsigned centroid:1;
|
|||
|
unsigned uniform:1;
|
|||
|
unsigned smooth:1;
|
|||
|
unsigned flat:1;
|
|||
|
unsigned noperspective:1;
|
|||
|
};
|
|||
|
|
|||
|
class ast_struct_specifier : public ast_node {
|
|||
|
public:
|
|||
|
ast_struct_specifier(char *identifier, ast_node *declarator_list);
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
char *name;
|
|||
|
struct simple_node declarations;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
enum ast_types {
|
|||
|
ast_void,
|
|||
|
ast_float,
|
|||
|
ast_int,
|
|||
|
ast_uint,
|
|||
|
ast_bool,
|
|||
|
ast_vec2,
|
|||
|
ast_vec3,
|
|||
|
ast_vec4,
|
|||
|
ast_bvec2,
|
|||
|
ast_bvec3,
|
|||
|
ast_bvec4,
|
|||
|
ast_ivec2,
|
|||
|
ast_ivec3,
|
|||
|
ast_ivec4,
|
|||
|
ast_uvec2,
|
|||
|
ast_uvec3,
|
|||
|
ast_uvec4,
|
|||
|
ast_mat2,
|
|||
|
ast_mat2x3,
|
|||
|
ast_mat2x4,
|
|||
|
ast_mat3x2,
|
|||
|
ast_mat3,
|
|||
|
ast_mat3x4,
|
|||
|
ast_mat4x2,
|
|||
|
ast_mat4x3,
|
|||
|
ast_mat4,
|
|||
|
ast_sampler1d,
|
|||
|
ast_sampler2d,
|
|||
|
ast_sampler3d,
|
|||
|
ast_samplercube,
|
|||
|
ast_sampler1dshadow,
|
|||
|
ast_sampler2dshadow,
|
|||
|
ast_samplercubeshadow,
|
|||
|
ast_sampler1darray,
|
|||
|
ast_sampler2darray,
|
|||
|
ast_sampler1darrayshadow,
|
|||
|
ast_sampler2darrayshadow,
|
|||
|
ast_isampler1d,
|
|||
|
ast_isampler2d,
|
|||
|
ast_isampler3d,
|
|||
|
ast_isamplercube,
|
|||
|
ast_isampler1darray,
|
|||
|
ast_isampler2darray,
|
|||
|
ast_usampler1d,
|
|||
|
ast_usampler2d,
|
|||
|
ast_usampler3d,
|
|||
|
ast_usamplercube,
|
|||
|
ast_usampler1darray,
|
|||
|
ast_usampler2darray,
|
|||
|
|
|||
|
ast_struct,
|
|||
|
ast_type_name
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
class ast_type_specifier : public ast_node {
|
|||
|
public:
|
|||
|
ast_type_specifier(int specifier);
|
|||
|
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
enum ast_types type_specifier;
|
|||
|
|
|||
|
char *type_name;
|
|||
|
ast_struct_specifier *structure;
|
|||
|
|
|||
|
int is_array;
|
|||
|
ast_expression *array_size;
|
|||
|
|
|||
|
unsigned precision:2;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
class ast_fully_specified_type : public ast_node {
|
|||
|
public:
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
ast_type_qualifier qualifier;
|
|||
|
ast_type_specifier *specifier;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
class ast_declarator_list : public ast_node {
|
|||
|
public:
|
|||
|
ast_declarator_list(ast_fully_specified_type *);
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
ast_fully_specified_type *type;
|
|||
|
struct simple_node declarations;
|
|||
|
|
|||
|
/**
|
|||
|
* Special flag for vertex shader "invariant" declarations.
|
|||
|
*
|
|||
|
* Vertex shaders can contain "invariant" variable redeclarations that do
|
|||
|
* not include a type. For example, "invariant gl_Position;". This flag
|
|||
|
* is used to note these cases when no type is specified.
|
|||
|
*/
|
|||
|
int invariant;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
class ast_parameter_declarator : public ast_node {
|
|||
|
public:
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
ast_fully_specified_type *type;
|
|||
|
char *identifier;
|
|||
|
int is_array;
|
|||
|
ast_expression *array_size;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
class ast_function : public ast_node {
|
|||
|
public:
|
|||
|
ast_function(void);
|
|||
|
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
ast_fully_specified_type *return_type;
|
|||
|
char *identifier;
|
|||
|
|
|||
|
struct simple_node parameters;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
class ast_declaration_statement : public ast_node {
|
|||
|
public:
|
|||
|
ast_declaration_statement(void);
|
|||
|
|
|||
|
enum {
|
|||
|
ast_function,
|
|||
|
ast_declaration,
|
|||
|
ast_precision
|
|||
|
} mode;
|
|||
|
|
|||
|
union {
|
|||
|
class ast_function *function;
|
|||
|
ast_declarator_list *declarator;
|
|||
|
ast_type_specifier *type;
|
|||
|
ast_node *node;
|
|||
|
} declaration;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
class ast_expression_statement : public ast_node {
|
|||
|
public:
|
|||
|
ast_expression_statement(ast_expression *);
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
ast_expression *expression;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
class ast_case_label : public ast_node {
|
|||
|
public:
|
|||
|
|
|||
|
/**
|
|||
|
* An expression of NULL means 'default'.
|
|||
|
*/
|
|||
|
ast_expression *expression;
|
|||
|
};
|
|||
|
|
|||
|
class ast_selection_statement : public ast_node {
|
|||
|
public:
|
|||
|
ast_selection_statement(ast_expression *condition,
|
|||
|
ast_node *then_statement,
|
|||
|
ast_node *else_statement);
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
ast_expression *condition;
|
|||
|
ast_node *then_statement;
|
|||
|
ast_node *else_statement;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
class ast_switch_statement : public ast_node {
|
|||
|
public:
|
|||
|
ast_expression *expression;
|
|||
|
struct simple_node statements;
|
|||
|
};
|
|||
|
|
|||
|
class ast_iteration_statement : public ast_node {
|
|||
|
public:
|
|||
|
ast_iteration_statement(int mode, ast_node *init, ast_node *condition,
|
|||
|
ast_expression *rest_expression, ast_node *body);
|
|||
|
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
enum ast_iteration_modes {
|
|||
|
ast_for,
|
|||
|
ast_while,
|
|||
|
ast_do_while
|
|||
|
} mode;
|
|||
|
|
|||
|
|
|||
|
ast_node *init_statement;
|
|||
|
ast_node *condition;
|
|||
|
ast_expression *rest_expression;
|
|||
|
|
|||
|
ast_node *body;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
class ast_jump_statement : public ast_node {
|
|||
|
public:
|
|||
|
ast_jump_statement(int mode, ast_expression *return_value);
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
enum ast_jump_modes {
|
|||
|
ast_continue,
|
|||
|
ast_break,
|
|||
|
ast_return,
|
|||
|
ast_discard
|
|||
|
} mode;
|
|||
|
|
|||
|
ast_expression *opt_return_value;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
class ast_function_definition : public ast_node {
|
|||
|
public:
|
|||
|
virtual void print(void) const;
|
|||
|
|
|||
|
ast_function *prototype;
|
|||
|
ast_compound_statement *body;
|
|||
|
};
|
|||
|
|
|||
|
|
|||
|
extern struct ir_instruction *
|
|||
|
ast_expression_to_hir(const ast_node *ast,
|
|||
|
struct simple_node *instructions,
|
|||
|
struct _mesa_glsl_parse_state *state);
|
|||
|
|
|||
|
extern struct ir_instruction *
|
|||
|
ast_expression_statement_to_hir(const struct ast_node *ast,
|
|||
|
struct simple_node *instructions,
|
|||
|
struct _mesa_glsl_parse_state *state);
|
|||
|
|
|||
|
extern struct ir_instruction *
|
|||
|
ast_compound_statement_to_hir(const struct ast_node *ast,
|
|||
|
struct simple_node *instructions,
|
|||
|
struct _mesa_glsl_parse_state *state);
|
|||
|
|
|||
|
extern struct ir_instruction *
|
|||
|
ast_function_definition_to_hir(const struct ast_node *ast,
|
|||
|
struct simple_node *instructions,
|
|||
|
struct _mesa_glsl_parse_state *state);
|
|||
|
|
|||
|
extern struct ir_instruction *
|
|||
|
ast_declarator_list_to_hir(const struct ast_node *ast,
|
|||
|
struct simple_node *instructions,
|
|||
|
struct _mesa_glsl_parse_state *state);
|
|||
|
|
|||
|
extern struct ir_instruction *
|
|||
|
ast_parameter_declarator_to_hir(const struct ast_node *ast,
|
|||
|
struct simple_node *instructions,
|
|||
|
struct _mesa_glsl_parse_state *state);
|
|||
|
|
|||
|
extern struct ir_instruction *
|
|||
|
_mesa_ast_field_selection_to_hir(const struct ast_expression *expr,
|
|||
|
struct simple_node *instructions,
|
|||
|
struct _mesa_glsl_parse_state *state);
|
|||
|
|
|||
|
#endif /* AST_H */
|