34f7e761bc
Without the lexer changes, tests/glslparsertest/glsl2/tex_rect-02.frag fails. Before this change, the parser would determine that sampler2DRect is not a valid type because the call to state->symbols->get_type() in ast_type_specifier::glsl_type() would return NULL. Since ast_type_specifier::glsl_type() is now going to return the glsl_type pointer that it received from the lexer, it doesn't have an opportunity to generate an error. text data bss dec hex filename 8255243 268856 294072 8818171 868dfb 32-bit i965_dri.so before 8255291 268856 294072 8818219 868e2b 32-bit i965_dri.so after 7815195 345592 420592 8581379 82f103 64-bit i965_dri.so before 7815339 345592 420592 8581523 82f193 64-bit i965_dri.so after Signed-off-by: Ian Romanick <ian.d.romanick@intel.com> Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
1334 lines
34 KiB
C++
1334 lines
34 KiB
C++
/* -*- 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.
|
||
*/
|
||
|
||
#ifndef AST_H
|
||
#define AST_H
|
||
|
||
#include "list.h"
|
||
#include "glsl_parser_extras.h"
|
||
#include "compiler/glsl_types.h"
|
||
|
||
struct _mesa_glsl_parse_state;
|
||
|
||
struct YYLTYPE;
|
||
|
||
/**
|
||
* \defgroup AST Abstract syntax tree node definitions
|
||
*
|
||
* An abstract syntax tree is generated by the parser. This is a fairly
|
||
* direct representation of the gramma derivation for the source program.
|
||
* No symantic checking is done during the generation of the AST. Only
|
||
* syntactic checking is done. Symantic checking is performed by a later
|
||
* stage that converts the AST to a more generic intermediate representation.
|
||
*
|
||
*@{
|
||
*/
|
||
/**
|
||
* Base class of all abstract syntax tree nodes
|
||
*/
|
||
class ast_node {
|
||
public:
|
||
DECLARE_LINEAR_ZALLOC_CXX_OPERATORS(ast_node);
|
||
|
||
/**
|
||
* Print an AST node in something approximating the original GLSL code
|
||
*/
|
||
virtual void print(void) const;
|
||
|
||
/**
|
||
* Convert the AST node to the high-level intermediate representation
|
||
*/
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
virtual bool has_sequence_subexpression() 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.first_line;
|
||
locp.first_column = this->location.first_column;
|
||
locp.last_line = this->location.last_line;
|
||
locp.last_column = this->location.last_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.first_line = locp.first_line;
|
||
this->location.first_column = locp.first_column;
|
||
this->location.last_line = locp.last_line;
|
||
this->location.last_column = locp.last_column;
|
||
}
|
||
|
||
/**
|
||
* Set the source location range of an AST node using two location nodes
|
||
*
|
||
* \sa ast_node::set_location
|
||
*/
|
||
void set_location_range(const struct YYLTYPE &begin, const struct YYLTYPE &end)
|
||
{
|
||
this->location.source = begin.source;
|
||
this->location.first_line = begin.first_line;
|
||
this->location.last_line = end.last_line;
|
||
this->location.first_column = begin.first_column;
|
||
this->location.last_column = end.last_column;
|
||
}
|
||
|
||
/**
|
||
* Source location of the AST node.
|
||
*/
|
||
struct {
|
||
unsigned source; /**< GLSL source number. */
|
||
unsigned first_line; /**< First line number within the source string. */
|
||
unsigned first_column; /**< First column in the first line. */
|
||
unsigned last_line; /**< Last line number within the source string. */
|
||
unsigned last_column; /**< Last column in the last line. */
|
||
} location;
|
||
|
||
exec_node link;
|
||
|
||
virtual void set_is_lhs(bool);
|
||
|
||
protected:
|
||
/**
|
||
* The only constructor is protected so that only derived class objects can
|
||
* be created.
|
||
*/
|
||
ast_node(void);
|
||
};
|
||
|
||
|
||
/**
|
||
* Operators for AST expression nodes.
|
||
*/
|
||
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_unsized_array_dim,
|
||
|
||
ast_function_call,
|
||
|
||
ast_identifier,
|
||
ast_int_constant,
|
||
ast_uint_constant,
|
||
ast_float_constant,
|
||
ast_bool_constant,
|
||
ast_double_constant,
|
||
ast_int64_constant,
|
||
ast_uint64_constant,
|
||
|
||
ast_sequence,
|
||
ast_aggregate
|
||
|
||
/**
|
||
* 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_aggregate + 1)
|
||
};
|
||
|
||
/**
|
||
* Representation of any sort of expression.
|
||
*/
|
||
class ast_expression : public ast_node {
|
||
public:
|
||
ast_expression(int oper, ast_expression *,
|
||
ast_expression *, ast_expression *);
|
||
|
||
ast_expression(const char *identifier) :
|
||
oper(ast_identifier)
|
||
{
|
||
subexpressions[0] = NULL;
|
||
subexpressions[1] = NULL;
|
||
subexpressions[2] = NULL;
|
||
primary_expression.identifier = identifier;
|
||
this->non_lvalue_description = NULL;
|
||
this->is_lhs = false;
|
||
}
|
||
|
||
static const char *operator_string(enum ast_operators op);
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
virtual void hir_no_rvalue(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
virtual bool has_sequence_subexpression() const;
|
||
|
||
ir_rvalue *do_hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state,
|
||
bool needs_rvalue);
|
||
|
||
virtual void print(void) const;
|
||
|
||
enum ast_operators oper;
|
||
|
||
ast_expression *subexpressions[3];
|
||
|
||
union {
|
||
const char *identifier;
|
||
int int_constant;
|
||
float float_constant;
|
||
unsigned uint_constant;
|
||
int bool_constant;
|
||
double double_constant;
|
||
uint64_t uint64_constant;
|
||
int64_t int64_constant;
|
||
} primary_expression;
|
||
|
||
|
||
/**
|
||
* List of expressions for an \c ast_sequence or parameters for an
|
||
* \c ast_function_call
|
||
*/
|
||
exec_list expressions;
|
||
|
||
/**
|
||
* For things that can't be l-values, this describes what it is.
|
||
*
|
||
* This text is used by the code that generates IR for assignments to
|
||
* detect and emit useful messages for assignments to some things that
|
||
* can't be l-values. For example, pre- or post-incerement expressions.
|
||
*
|
||
* \note
|
||
* This pointer may be \c NULL.
|
||
*/
|
||
const char *non_lvalue_description;
|
||
|
||
void set_is_lhs(bool new_value);
|
||
|
||
private:
|
||
bool is_lhs;
|
||
};
|
||
|
||
class ast_expression_bin : public ast_expression {
|
||
public:
|
||
ast_expression_bin(int oper, ast_expression *, ast_expression *);
|
||
|
||
virtual void print(void) const;
|
||
};
|
||
|
||
/**
|
||
* Subclass of expressions for function calls
|
||
*/
|
||
class ast_function_expression : public ast_expression {
|
||
public:
|
||
ast_function_expression(ast_expression *callee)
|
||
: ast_expression(ast_function_call, callee,
|
||
NULL, NULL),
|
||
cons(false)
|
||
{
|
||
/* empty */
|
||
}
|
||
|
||
ast_function_expression(class ast_type_specifier *type)
|
||
: ast_expression(ast_function_call, (ast_expression *) type,
|
||
NULL, NULL),
|
||
cons(true)
|
||
{
|
||
/* empty */
|
||
}
|
||
|
||
bool is_constructor() const
|
||
{
|
||
return cons;
|
||
}
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
virtual void hir_no_rvalue(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
virtual bool has_sequence_subexpression() const;
|
||
|
||
private:
|
||
/**
|
||
* Is this function call actually a constructor?
|
||
*/
|
||
bool cons;
|
||
ir_rvalue *
|
||
handle_method(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
};
|
||
|
||
class ast_subroutine_list : public ast_node
|
||
{
|
||
public:
|
||
virtual void print(void) const;
|
||
exec_list declarations;
|
||
};
|
||
|
||
class ast_array_specifier : public ast_node {
|
||
public:
|
||
ast_array_specifier(const struct YYLTYPE &locp, ast_expression *dim)
|
||
{
|
||
set_location(locp);
|
||
array_dimensions.push_tail(&dim->link);
|
||
}
|
||
|
||
void add_dimension(ast_expression *dim)
|
||
{
|
||
array_dimensions.push_tail(&dim->link);
|
||
}
|
||
|
||
bool is_single_dimension() const
|
||
{
|
||
return this->array_dimensions.get_tail_raw()->prev != NULL &&
|
||
this->array_dimensions.get_tail_raw()->prev->is_head_sentinel();
|
||
}
|
||
|
||
virtual void print(void) const;
|
||
|
||
/* This list contains objects of type ast_node containing the
|
||
* array dimensions in outermost-to-innermost order.
|
||
*/
|
||
exec_list array_dimensions;
|
||
};
|
||
|
||
class ast_layout_expression : public ast_node {
|
||
public:
|
||
ast_layout_expression(const struct YYLTYPE &locp, ast_expression *expr)
|
||
{
|
||
set_location(locp);
|
||
layout_const_expressions.push_tail(&expr->link);
|
||
}
|
||
|
||
bool process_qualifier_constant(struct _mesa_glsl_parse_state *state,
|
||
const char *qual_indentifier,
|
||
unsigned *value, bool can_be_zero);
|
||
|
||
void merge_qualifier(ast_layout_expression *l_expr)
|
||
{
|
||
layout_const_expressions.append_list(&l_expr->layout_const_expressions);
|
||
}
|
||
|
||
exec_list layout_const_expressions;
|
||
};
|
||
|
||
/**
|
||
* C-style aggregate initialization class
|
||
*
|
||
* Represents C-style initializers of vectors, matrices, arrays, and
|
||
* structures. E.g., vec3 pos = {1.0, 0.0, -1.0} is equivalent to
|
||
* vec3 pos = vec3(1.0, 0.0, -1.0).
|
||
*
|
||
* Specified in GLSL 4.20 and GL_ARB_shading_language_420pack.
|
||
*
|
||
* \sa _mesa_ast_set_aggregate_type
|
||
*/
|
||
class ast_aggregate_initializer : public ast_expression {
|
||
public:
|
||
ast_aggregate_initializer()
|
||
: ast_expression(ast_aggregate, NULL, NULL, NULL),
|
||
constructor_type(NULL)
|
||
{
|
||
/* empty */
|
||
}
|
||
|
||
/**
|
||
* glsl_type of the aggregate, which is inferred from the LHS of whatever
|
||
* the aggregate is being used to initialize. This can't be inferred at
|
||
* parse time (since the parser deals with ast_type_specifiers, not
|
||
* glsl_types), so the parser leaves it NULL. However, the ast-to-hir
|
||
* conversion code makes sure to fill it in with the appropriate type
|
||
* before hir() is called.
|
||
*/
|
||
const glsl_type *constructor_type;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
virtual void hir_no_rvalue(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
};
|
||
|
||
|
||
class ast_compound_statement : public ast_node {
|
||
public:
|
||
ast_compound_statement(int new_scope, ast_node *statements);
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
int new_scope;
|
||
exec_list statements;
|
||
};
|
||
|
||
class ast_declaration : public ast_node {
|
||
public:
|
||
ast_declaration(const char *identifier,
|
||
ast_array_specifier *array_specifier,
|
||
ast_expression *initializer);
|
||
virtual void print(void) const;
|
||
|
||
const char *identifier;
|
||
|
||
ast_array_specifier *array_specifier;
|
||
|
||
ast_expression *initializer;
|
||
};
|
||
|
||
|
||
enum {
|
||
ast_precision_none = 0, /**< Absence of precision qualifier. */
|
||
ast_precision_high,
|
||
ast_precision_medium,
|
||
ast_precision_low
|
||
};
|
||
|
||
enum {
|
||
ast_depth_none = 0, /**< Absence of depth qualifier. */
|
||
ast_depth_any,
|
||
ast_depth_greater,
|
||
ast_depth_less,
|
||
ast_depth_unchanged
|
||
};
|
||
|
||
struct ast_type_qualifier {
|
||
DECLARE_RALLOC_CXX_OPERATORS(ast_type_qualifier);
|
||
|
||
union {
|
||
struct {
|
||
unsigned invariant:1;
|
||
unsigned precise:1;
|
||
unsigned constant:1;
|
||
unsigned attribute:1;
|
||
unsigned varying:1;
|
||
unsigned in:1;
|
||
unsigned out:1;
|
||
unsigned centroid:1;
|
||
unsigned sample:1;
|
||
unsigned patch:1;
|
||
unsigned uniform:1;
|
||
unsigned buffer:1;
|
||
unsigned shared_storage:1;
|
||
unsigned smooth:1;
|
||
unsigned flat:1;
|
||
unsigned noperspective:1;
|
||
|
||
/** \name Layout qualifiers for GL_ARB_fragment_coord_conventions */
|
||
/*@{*/
|
||
unsigned origin_upper_left:1;
|
||
unsigned pixel_center_integer:1;
|
||
/*@}*/
|
||
|
||
/**
|
||
* Flag set if GL_ARB_enhanced_layouts "align" layout qualifier is
|
||
* used.
|
||
*/
|
||
unsigned explicit_align:1;
|
||
|
||
/**
|
||
* Flag set if GL_ARB_explicit_attrib_location "location" layout
|
||
* qualifier is used.
|
||
*/
|
||
unsigned explicit_location:1;
|
||
/**
|
||
* Flag set if GL_ARB_explicit_attrib_location "index" layout
|
||
* qualifier is used.
|
||
*/
|
||
unsigned explicit_index:1;
|
||
|
||
/**
|
||
* Flag set if GL_ARB_enhanced_layouts "component" layout
|
||
* qualifier is used.
|
||
*/
|
||
unsigned explicit_component:1;
|
||
|
||
/**
|
||
* Flag set if GL_ARB_shading_language_420pack "binding" layout
|
||
* qualifier is used.
|
||
*/
|
||
unsigned explicit_binding:1;
|
||
|
||
/**
|
||
* Flag set if GL_ARB_shader_atomic counter "offset" layout
|
||
* qualifier is used.
|
||
*/
|
||
unsigned explicit_offset:1;
|
||
|
||
/** \name Layout qualifiers for GL_AMD_conservative_depth */
|
||
/** \{ */
|
||
unsigned depth_type:1;
|
||
/** \} */
|
||
|
||
/** \name Layout qualifiers for GL_ARB_uniform_buffer_object */
|
||
/** \{ */
|
||
unsigned std140:1;
|
||
unsigned std430:1;
|
||
unsigned shared:1;
|
||
unsigned packed:1;
|
||
unsigned column_major:1;
|
||
unsigned row_major:1;
|
||
/** \} */
|
||
|
||
/** \name Layout qualifiers for GLSL 1.50 geometry shaders */
|
||
/** \{ */
|
||
unsigned prim_type:1;
|
||
unsigned max_vertices:1;
|
||
/** \} */
|
||
|
||
/**
|
||
* local_size_{x,y,z} flags for compute shaders. Bit 0 represents
|
||
* local_size_x, and so on.
|
||
*/
|
||
unsigned local_size:3;
|
||
|
||
/** \name Layout qualifiers for ARB_compute_variable_group_size. */
|
||
/** \{ */
|
||
unsigned local_size_variable:1;
|
||
/** \} */
|
||
|
||
/** \name Layout and memory qualifiers for ARB_shader_image_load_store. */
|
||
/** \{ */
|
||
unsigned early_fragment_tests:1;
|
||
unsigned explicit_image_format:1;
|
||
unsigned coherent:1;
|
||
unsigned _volatile:1;
|
||
unsigned restrict_flag:1;
|
||
unsigned read_only:1; /**< "readonly" qualifier. */
|
||
unsigned write_only:1; /**< "writeonly" qualifier. */
|
||
/** \} */
|
||
|
||
/** \name Layout qualifiers for GL_ARB_gpu_shader5 */
|
||
/** \{ */
|
||
unsigned invocations:1;
|
||
unsigned stream:1; /**< Has stream value assigned */
|
||
unsigned explicit_stream:1; /**< stream value assigned explicitly by shader code */
|
||
/** \} */
|
||
|
||
/** \name Layout qualifiers for GL_ARB_enhanced_layouts */
|
||
/** \{ */
|
||
unsigned explicit_xfb_offset:1; /**< xfb_offset value assigned explicitly by shader code */
|
||
unsigned xfb_buffer:1; /**< Has xfb_buffer value assigned */
|
||
unsigned explicit_xfb_buffer:1; /**< xfb_buffer value assigned explicitly by shader code */
|
||
unsigned xfb_stride:1; /**< Is xfb_stride value yet to be merged with global values */
|
||
unsigned explicit_xfb_stride:1; /**< xfb_stride value assigned explicitly by shader code */
|
||
/** \} */
|
||
|
||
/** \name Layout qualifiers for GL_ARB_tessellation_shader */
|
||
/** \{ */
|
||
/* tess eval input layout */
|
||
/* gs prim_type reused for primitive mode */
|
||
unsigned vertex_spacing:1;
|
||
unsigned ordering:1;
|
||
unsigned point_mode:1;
|
||
/* tess control output layout */
|
||
unsigned vertices:1;
|
||
/** \} */
|
||
|
||
/** \name Qualifiers for GL_ARB_shader_subroutine */
|
||
/** \{ */
|
||
unsigned subroutine:1; /**< Is this marked 'subroutine' */
|
||
/** \} */
|
||
|
||
/** \name Qualifiers for GL_KHR_blend_equation_advanced */
|
||
/** \{ */
|
||
unsigned blend_support:1; /**< Are there any blend_support_ qualifiers */
|
||
/** \} */
|
||
|
||
/**
|
||
* Flag set if GL_ARB_post_depth_coverage layout qualifier is used.
|
||
*/
|
||
unsigned post_depth_coverage:1;
|
||
/**
|
||
* Flag set if GL_INTEL_conservartive_rasterization layout qualifier
|
||
* is used.
|
||
*/
|
||
unsigned inner_coverage:1;
|
||
|
||
/** \name Layout qualifiers for GL_ARB_bindless_texture */
|
||
/** \{ */
|
||
unsigned bindless_sampler:1;
|
||
unsigned bindless_image:1;
|
||
unsigned bound_sampler:1;
|
||
unsigned bound_image:1;
|
||
/** \} */
|
||
}
|
||
/** \brief Set of flags, accessed by name. */
|
||
q;
|
||
|
||
/** \brief Set of flags, accessed as a bitmask. */
|
||
uint64_t i;
|
||
} flags;
|
||
|
||
/** Precision of the type (highp/medium/lowp). */
|
||
unsigned precision:2;
|
||
|
||
/** Type of layout qualifiers for GL_AMD_conservative_depth. */
|
||
unsigned depth_type:3;
|
||
|
||
/**
|
||
* Alignment specified via GL_ARB_enhanced_layouts "align" layout qualifier
|
||
*/
|
||
ast_expression *align;
|
||
|
||
/** Geometry shader invocations for GL_ARB_gpu_shader5. */
|
||
ast_layout_expression *invocations;
|
||
|
||
/**
|
||
* Location specified via GL_ARB_explicit_attrib_location layout
|
||
*
|
||
* \note
|
||
* This field is only valid if \c explicit_location is set.
|
||
*/
|
||
ast_expression *location;
|
||
/**
|
||
* Index specified via GL_ARB_explicit_attrib_location layout
|
||
*
|
||
* \note
|
||
* This field is only valid if \c explicit_index is set.
|
||
*/
|
||
ast_expression *index;
|
||
|
||
/**
|
||
* Component specified via GL_ARB_enhaced_layouts
|
||
*
|
||
* \note
|
||
* This field is only valid if \c explicit_component is set.
|
||
*/
|
||
ast_expression *component;
|
||
|
||
/** Maximum output vertices in GLSL 1.50 geometry shaders. */
|
||
ast_layout_expression *max_vertices;
|
||
|
||
/** Stream in GLSL 1.50 geometry shaders. */
|
||
ast_expression *stream;
|
||
|
||
/** xfb_buffer specified via the GL_ARB_enhanced_layouts keyword. */
|
||
ast_expression *xfb_buffer;
|
||
|
||
/** xfb_stride specified via the GL_ARB_enhanced_layouts keyword. */
|
||
ast_expression *xfb_stride;
|
||
|
||
/** global xfb_stride values for each buffer */
|
||
ast_layout_expression *out_xfb_stride[MAX_FEEDBACK_BUFFERS];
|
||
|
||
/**
|
||
* Input or output primitive type in GLSL 1.50 geometry shaders
|
||
* and tessellation shaders.
|
||
*/
|
||
GLenum prim_type;
|
||
|
||
/**
|
||
* Binding specified via GL_ARB_shading_language_420pack's "binding" keyword.
|
||
*
|
||
* \note
|
||
* This field is only valid if \c explicit_binding is set.
|
||
*/
|
||
ast_expression *binding;
|
||
|
||
/**
|
||
* Offset specified via GL_ARB_shader_atomic_counter's or
|
||
* GL_ARB_enhanced_layouts "offset" keyword, or by GL_ARB_enhanced_layouts
|
||
* "xfb_offset" keyword.
|
||
*
|
||
* \note
|
||
* This field is only valid if \c explicit_offset is set.
|
||
*/
|
||
ast_expression *offset;
|
||
|
||
/**
|
||
* Local size specified via GL_ARB_compute_shader's "local_size_{x,y,z}"
|
||
* layout qualifier. Element i of this array is only valid if
|
||
* flags.q.local_size & (1 << i) is set.
|
||
*/
|
||
ast_layout_expression *local_size[3];
|
||
|
||
/** Tessellation evaluation shader: vertex spacing (equal, fractional even/odd) */
|
||
enum gl_tess_spacing vertex_spacing;
|
||
|
||
/** Tessellation evaluation shader: vertex ordering (CW or CCW) */
|
||
GLenum ordering;
|
||
|
||
/** Tessellation evaluation shader: point mode */
|
||
bool point_mode;
|
||
|
||
/** Tessellation control shader: number of output vertices */
|
||
ast_layout_expression *vertices;
|
||
|
||
/**
|
||
* Image format specified with an ARB_shader_image_load_store
|
||
* layout qualifier.
|
||
*
|
||
* \note
|
||
* This field is only valid if \c explicit_image_format is set.
|
||
*/
|
||
GLenum image_format;
|
||
|
||
/**
|
||
* Base type of the data read from or written to this image. Only
|
||
* the following enumerants are allowed: GLSL_TYPE_UINT,
|
||
* GLSL_TYPE_INT, GLSL_TYPE_FLOAT.
|
||
*
|
||
* \note
|
||
* This field is only valid if \c explicit_image_format is set.
|
||
*/
|
||
glsl_base_type image_base_type;
|
||
|
||
/**
|
||
* Return true if and only if an interpolation qualifier is present.
|
||
*/
|
||
bool has_interpolation() const;
|
||
|
||
/**
|
||
* Return whether a layout qualifier is present.
|
||
*/
|
||
bool has_layout() const;
|
||
|
||
/**
|
||
* Return whether a storage qualifier is present.
|
||
*/
|
||
bool has_storage() const;
|
||
|
||
/**
|
||
* Return whether an auxiliary storage qualifier is present.
|
||
*/
|
||
bool has_auxiliary_storage() const;
|
||
|
||
/**
|
||
* Return true if and only if a memory qualifier is present.
|
||
*/
|
||
bool has_memory() const;
|
||
|
||
/**
|
||
* Return true if the qualifier is a subroutine declaration.
|
||
*/
|
||
bool is_subroutine_decl() const;
|
||
|
||
bool merge_qualifier(YYLTYPE *loc,
|
||
_mesa_glsl_parse_state *state,
|
||
const ast_type_qualifier &q,
|
||
bool is_single_layout_merge,
|
||
bool is_multiple_layouts_merge = false);
|
||
|
||
/**
|
||
* Validate current qualifier against the global out one.
|
||
*/
|
||
bool validate_out_qualifier(YYLTYPE *loc,
|
||
_mesa_glsl_parse_state *state);
|
||
|
||
/**
|
||
* Merge current qualifier into the global out one.
|
||
*/
|
||
bool merge_into_out_qualifier(YYLTYPE *loc,
|
||
_mesa_glsl_parse_state *state,
|
||
ast_node* &node);
|
||
|
||
/**
|
||
* Validate current qualifier against the global in one.
|
||
*/
|
||
bool validate_in_qualifier(YYLTYPE *loc,
|
||
_mesa_glsl_parse_state *state);
|
||
|
||
/**
|
||
* Merge current qualifier into the global in one.
|
||
*/
|
||
bool merge_into_in_qualifier(YYLTYPE *loc,
|
||
_mesa_glsl_parse_state *state,
|
||
ast_node* &node);
|
||
|
||
/**
|
||
* Push pending layout qualifiers to the global values.
|
||
*/
|
||
bool push_to_global(YYLTYPE *loc,
|
||
_mesa_glsl_parse_state *state);
|
||
|
||
bool validate_flags(YYLTYPE *loc,
|
||
_mesa_glsl_parse_state *state,
|
||
const ast_type_qualifier &allowed_flags,
|
||
const char *message, const char *name);
|
||
|
||
ast_subroutine_list *subroutine_list;
|
||
};
|
||
|
||
class ast_declarator_list;
|
||
|
||
class ast_struct_specifier : public ast_node {
|
||
public:
|
||
ast_struct_specifier(const char *identifier,
|
||
ast_declarator_list *declarator_list);
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
const char *name;
|
||
ast_type_qualifier *layout;
|
||
/* List of ast_declarator_list * */
|
||
exec_list declarations;
|
||
bool is_declaration;
|
||
const glsl_type *type;
|
||
};
|
||
|
||
|
||
|
||
class ast_type_specifier : public ast_node {
|
||
public:
|
||
/** Construct a type specifier from a type name */
|
||
ast_type_specifier(const char *name)
|
||
: type(NULL), type_name(name), structure(NULL), array_specifier(NULL),
|
||
default_precision(ast_precision_none)
|
||
{
|
||
/* empty */
|
||
}
|
||
|
||
/** Construct a type specifier from a structure definition */
|
||
ast_type_specifier(ast_struct_specifier *s)
|
||
: type(NULL), type_name(s->name), structure(s), array_specifier(NULL),
|
||
default_precision(ast_precision_none)
|
||
{
|
||
/* empty */
|
||
}
|
||
|
||
ast_type_specifier(const glsl_type *t)
|
||
: type(t), type_name(t->name), structure(NULL), array_specifier(NULL),
|
||
default_precision(ast_precision_none)
|
||
{
|
||
/* empty */
|
||
}
|
||
|
||
const struct glsl_type *glsl_type(const char **name,
|
||
struct _mesa_glsl_parse_state *state)
|
||
const;
|
||
|
||
virtual void print(void) const;
|
||
|
||
ir_rvalue *hir(exec_list *, struct _mesa_glsl_parse_state *);
|
||
|
||
const struct glsl_type *type;
|
||
const char *type_name;
|
||
ast_struct_specifier *structure;
|
||
|
||
ast_array_specifier *array_specifier;
|
||
|
||
/** For precision statements, this is the given precision; otherwise none. */
|
||
unsigned default_precision:2;
|
||
};
|
||
|
||
|
||
class ast_fully_specified_type : public ast_node {
|
||
public:
|
||
virtual void print(void) const;
|
||
bool has_qualifiers(_mesa_glsl_parse_state *state) const;
|
||
|
||
ast_fully_specified_type() : qualifier(), specifier(NULL)
|
||
{
|
||
}
|
||
|
||
const struct glsl_type *glsl_type(const char **name,
|
||
struct _mesa_glsl_parse_state *state)
|
||
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;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
ast_fully_specified_type *type;
|
||
/** List of 'ast_declaration *' */
|
||
exec_list declarations;
|
||
|
||
/**
|
||
* Flags for redeclarations. In these cases, no type is specified, to
|
||
* `type` is allowed to be NULL. In all other cases, this would be an error.
|
||
*/
|
||
int invariant; /** < `invariant` redeclaration */
|
||
int precise; /** < `precise` redeclaration */
|
||
};
|
||
|
||
|
||
class ast_parameter_declarator : public ast_node {
|
||
public:
|
||
ast_parameter_declarator() :
|
||
type(NULL),
|
||
identifier(NULL),
|
||
array_specifier(NULL),
|
||
formal_parameter(false),
|
||
is_void(false)
|
||
{
|
||
/* empty */
|
||
}
|
||
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
ast_fully_specified_type *type;
|
||
const char *identifier;
|
||
ast_array_specifier *array_specifier;
|
||
|
||
static void parameters_to_hir(exec_list *ast_parameters,
|
||
bool formal, exec_list *ir_parameters,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
private:
|
||
/** Is this parameter declaration part of a formal parameter list? */
|
||
bool formal_parameter;
|
||
|
||
/**
|
||
* Is this parameter 'void' type?
|
||
*
|
||
* This field is set by \c ::hir.
|
||
*/
|
||
bool is_void;
|
||
};
|
||
|
||
|
||
class ast_function : public ast_node {
|
||
public:
|
||
ast_function(void);
|
||
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
ast_fully_specified_type *return_type;
|
||
const char *identifier;
|
||
|
||
exec_list parameters;
|
||
|
||
private:
|
||
/**
|
||
* Is this prototype part of the function definition?
|
||
*
|
||
* Used by ast_function_definition::hir to process the parameters, etc.
|
||
* of the function.
|
||
*
|
||
* \sa ::hir
|
||
*/
|
||
bool is_definition;
|
||
|
||
/**
|
||
* Function signature corresponding to this function prototype instance
|
||
*
|
||
* Used by ast_function_definition::hir to process the parameters, etc.
|
||
* of the function.
|
||
*
|
||
* \sa ::hir
|
||
*/
|
||
class ir_function_signature *signature;
|
||
|
||
friend class ast_function_definition;
|
||
};
|
||
|
||
|
||
class ast_expression_statement : public ast_node {
|
||
public:
|
||
ast_expression_statement(ast_expression *);
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
ast_expression *expression;
|
||
};
|
||
|
||
|
||
class ast_case_label : public ast_node {
|
||
public:
|
||
ast_case_label(ast_expression *test_value);
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
/**
|
||
* An test value of NULL means 'default'.
|
||
*/
|
||
ast_expression *test_value;
|
||
};
|
||
|
||
|
||
class ast_case_label_list : public ast_node {
|
||
public:
|
||
ast_case_label_list(void);
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
/**
|
||
* A list of case labels.
|
||
*/
|
||
exec_list labels;
|
||
};
|
||
|
||
|
||
class ast_case_statement : public ast_node {
|
||
public:
|
||
ast_case_statement(ast_case_label_list *labels);
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
ast_case_label_list *labels;
|
||
|
||
/**
|
||
* A list of statements.
|
||
*/
|
||
exec_list stmts;
|
||
};
|
||
|
||
|
||
class ast_case_statement_list : public ast_node {
|
||
public:
|
||
ast_case_statement_list(void);
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
/**
|
||
* A list of cases.
|
||
*/
|
||
exec_list cases;
|
||
};
|
||
|
||
|
||
class ast_switch_body : public ast_node {
|
||
public:
|
||
ast_switch_body(ast_case_statement_list *stmts);
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
ast_case_statement_list *stmts;
|
||
};
|
||
|
||
|
||
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;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
ast_expression *condition;
|
||
ast_node *then_statement;
|
||
ast_node *else_statement;
|
||
};
|
||
|
||
|
||
class ast_switch_statement : public ast_node {
|
||
public:
|
||
ast_switch_statement(ast_expression *test_expression,
|
||
ast_node *body);
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
ast_expression *test_expression;
|
||
ast_node *body;
|
||
|
||
protected:
|
||
void test_to_hir(exec_list *, struct _mesa_glsl_parse_state *);
|
||
};
|
||
|
||
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;
|
||
|
||
virtual ir_rvalue *hir(exec_list *, struct _mesa_glsl_parse_state *);
|
||
|
||
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;
|
||
|
||
/**
|
||
* Generate IR from the condition of a loop
|
||
*
|
||
* This is factored out of ::hir because some loops have the condition
|
||
* test at the top (for and while), and others have it at the end (do-while).
|
||
*/
|
||
void condition_to_hir(exec_list *, struct _mesa_glsl_parse_state *);
|
||
};
|
||
|
||
|
||
class ast_jump_statement : public ast_node {
|
||
public:
|
||
ast_jump_statement(int mode, ast_expression *return_value);
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
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:
|
||
ast_function_definition() : prototype(NULL), body(NULL)
|
||
{
|
||
}
|
||
|
||
virtual void print(void) const;
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
ast_function *prototype;
|
||
ast_compound_statement *body;
|
||
};
|
||
|
||
class ast_interface_block : public ast_node {
|
||
public:
|
||
ast_interface_block(const char *instance_name,
|
||
ast_array_specifier *array_specifier)
|
||
: block_name(NULL), instance_name(instance_name),
|
||
array_specifier(array_specifier)
|
||
{
|
||
}
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
ast_type_qualifier default_layout;
|
||
ast_type_qualifier layout;
|
||
const char *block_name;
|
||
|
||
/**
|
||
* Declared name of the block instance, if specified.
|
||
*
|
||
* If the block does not have an instance name, this field will be
|
||
* \c NULL.
|
||
*/
|
||
const char *instance_name;
|
||
|
||
/** List of ast_declarator_list * */
|
||
exec_list declarations;
|
||
|
||
/**
|
||
* Declared array size of the block instance
|
||
*
|
||
* If the block is not declared as an array or if the block instance array
|
||
* is unsized, this field will be \c NULL.
|
||
*/
|
||
ast_array_specifier *array_specifier;
|
||
};
|
||
|
||
|
||
/**
|
||
* AST node representing a declaration of the output layout for tessellation
|
||
* control shaders.
|
||
*/
|
||
class ast_tcs_output_layout : public ast_node
|
||
{
|
||
public:
|
||
ast_tcs_output_layout(const struct YYLTYPE &locp)
|
||
{
|
||
set_location(locp);
|
||
}
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
};
|
||
|
||
|
||
/**
|
||
* AST node representing a declaration of the input layout for geometry
|
||
* shaders.
|
||
*/
|
||
class ast_gs_input_layout : public ast_node
|
||
{
|
||
public:
|
||
ast_gs_input_layout(const struct YYLTYPE &locp, GLenum prim_type)
|
||
: prim_type(prim_type)
|
||
{
|
||
set_location(locp);
|
||
}
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
private:
|
||
const GLenum prim_type;
|
||
};
|
||
|
||
|
||
/**
|
||
* AST node representing a decalaration of the input layout for compute
|
||
* shaders.
|
||
*/
|
||
class ast_cs_input_layout : public ast_node
|
||
{
|
||
public:
|
||
ast_cs_input_layout(const struct YYLTYPE &locp,
|
||
ast_layout_expression *const *local_size)
|
||
{
|
||
for (int i = 0; i < 3; i++) {
|
||
this->local_size[i] = local_size[i];
|
||
}
|
||
set_location(locp);
|
||
}
|
||
|
||
virtual ir_rvalue *hir(exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
private:
|
||
ast_layout_expression *local_size[3];
|
||
};
|
||
|
||
/*@}*/
|
||
|
||
extern void
|
||
_mesa_ast_to_hir(exec_list *instructions, struct _mesa_glsl_parse_state *state);
|
||
|
||
extern ir_rvalue *
|
||
_mesa_ast_field_selection_to_hir(const ast_expression *expr,
|
||
exec_list *instructions,
|
||
struct _mesa_glsl_parse_state *state);
|
||
|
||
extern ir_rvalue *
|
||
_mesa_ast_array_index_to_hir(void *mem_ctx,
|
||
struct _mesa_glsl_parse_state *state,
|
||
ir_rvalue *array, ir_rvalue *idx,
|
||
YYLTYPE &loc, YYLTYPE &idx_loc);
|
||
|
||
extern void
|
||
_mesa_ast_set_aggregate_type(const glsl_type *type,
|
||
ast_expression *expr);
|
||
|
||
void
|
||
emit_function(_mesa_glsl_parse_state *state, ir_function *f);
|
||
|
||
extern void
|
||
check_builtin_array_max_size(const char *name, unsigned size,
|
||
YYLTYPE loc, struct _mesa_glsl_parse_state *state);
|
||
|
||
extern void _mesa_ast_process_interface_block(YYLTYPE *locp,
|
||
_mesa_glsl_parse_state *state,
|
||
ast_interface_block *const block,
|
||
const struct ast_type_qualifier &q);
|
||
|
||
extern bool
|
||
process_qualifier_constant(struct _mesa_glsl_parse_state *state,
|
||
YYLTYPE *loc,
|
||
const char *qual_indentifier,
|
||
ast_expression *const_expression,
|
||
unsigned *value);
|
||
#endif /* AST_H */
|