*/
class ast_node {
public:
- /* Callers of this ralloc-based new need not call delete. It's
- * easier to just ralloc_free 'ctx' (or any of its ancestors). */
- static void* operator new(size_t size, void *ctx)
- {
- void *node;
-
- node = rzalloc_size(ctx, size);
- assert(node != NULL);
-
- return node;
- }
-
- /* If the user *does* call delete, that's OK, we will just
- * ralloc_free in that case. */
- static void operator delete(void *table)
- {
- ralloc_free(table);
- }
+ DECLARE_RALLOC_CXX_OPERATORS(ast_node);
/**
* Print an AST node in something approximating the original GLSL code
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
*
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;
+ 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;
}
void set_location(const struct YYLTYPE &locp)
{
this->location.source = locp.source;
- this->location.line = locp.first_line;
- this->location.column = locp.first_column;
+ 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 line; /**< Line number within the source string. */
- unsigned column; /**< Column in the line. */
+ 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;
ast_post_dec,
ast_field_selection,
ast_array_index,
+ ast_unsized_array_dim,
ast_function_call,
ast_uint_constant,
ast_float_constant,
ast_bool_constant,
+ ast_double_constant,
- ast_sequence
+ ast_sequence,
+ ast_aggregate
};
/**
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;
float float_constant;
unsigned uint_constant;
int bool_constant;
+ double double_constant;
} primary_expression;
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.tail_pred->prev != NULL &&
+ this->array_dimensions.tail_pred->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);
+};
/**
* Number of possible operators for an ast_expression
class ast_declaration : public ast_node {
public:
- ast_declaration(const char *identifier, int is_array, ast_expression *array_size,
- ast_expression *initializer);
+ ast_declaration(const char *identifier,
+ ast_array_specifier *array_specifier,
+ ast_expression *initializer);
virtual void print(void) const;
const char *identifier;
-
- int is_array;
- ast_expression *array_size;
+
+ ast_array_specifier *array_specifier;
ast_expression *initializer;
};
};
struct ast_type_qualifier {
- /* Callers of this ralloc-based new need not call delete. It's
- * easier to just ralloc_free 'ctx' (or any of its ancestors). */
- static void* operator new(size_t size, void *ctx)
- {
- void *node;
-
- node = rzalloc_size(ctx, size);
- assert(node != NULL);
-
- return node;
- }
-
- /* If the user *does* call delete, that's OK, we will just
- * ralloc_free in that case. */
- static void operator delete(void *table)
- {
- ralloc_free(table);
- }
+ 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;
*/
unsigned explicit_index: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_any: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 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_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' */
+ unsigned subroutine_def:1; /**< Is this marked 'subroutine' with a list of types */
+ /** \} */
}
/** \brief Set of flags, accessed by name. */
q;
/** \brief Set of flags, accessed as a bitmask. */
- unsigned i;
+ uint64_t i;
} flags;
+ /** Precision of the type (highp/medium/lowp). */
+ unsigned precision:2;
+
+ /** 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.
*/
- int location;
+ ast_expression *location;
/**
* Index specified via GL_ARB_explicit_attrib_location layout
*
* \note
* This field is only valid if \c explicit_index is set.
*/
- int index;
+ ast_expression *index;
+
+ /** Maximum output vertices in GLSL 1.50 geometry shaders. */
+ ast_layout_expression *max_vertices;
+
+ /** Stream in GLSL 1.50 geometry shaders. */
+ ast_expression *stream;
+
+ /**
+ * 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 "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) */
+ GLenum 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;
+
+ /** Flag to know if this represents a default value for a qualifier */
+ bool is_default_qualifier;
/**
* 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;
+
/**
* \brief Return string representation of interpolation qualifier.
*
bool merge_qualifier(YYLTYPE *loc,
_mesa_glsl_parse_state *state,
- ast_type_qualifier q);
+ const ast_type_qualifier &q,
+ bool is_single_layout_merge);
+
+ bool merge_out_qualifier(YYLTYPE *loc,
+ _mesa_glsl_parse_state *state,
+ const ast_type_qualifier &q,
+ ast_node* &node, bool create_node);
+
+ bool merge_in_qualifier(YYLTYPE *loc,
+ _mesa_glsl_parse_state *state,
+ const ast_type_qualifier &q,
+ ast_node* &node, bool create_node);
+
+ ast_subroutine_list *subroutine_list;
};
class ast_declarator_list;
struct _mesa_glsl_parse_state *state);
const char *name;
+ ast_type_qualifier *layout;
/* List of ast_declarator_list * */
exec_list declarations;
+ bool is_declaration;
};
public:
/** Construct a type specifier from a type name */
ast_type_specifier(const char *name)
- : type_name(name), structure(NULL),
- is_array(false), array_size(NULL), precision(ast_precision_none),
- is_precision_statement(false)
+ : 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_name(s->name), structure(s),
- is_array(false), array_size(NULL), precision(ast_precision_none),
- is_precision_statement(false)
+ : type_name(s->name), structure(s), array_specifier(NULL),
+ default_precision(ast_precision_none)
{
/* empty */
}
const char *type_name;
ast_struct_specifier *structure;
- int is_array;
- ast_expression *array_size;
-
- unsigned precision:2;
+ ast_array_specifier *array_specifier;
- bool is_precision_statement;
+ /** 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() 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;
exec_list 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.
+ * 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;
-
- /**
- * Flag indicating that these declarators are in a uniform block,
- * allowing UBO type qualifiers.
- */
- bool ubo_qualifiers_valid;
+ int invariant; /** < `invariant` redeclaration */
+ int precise; /** < `precise` redeclaration */
};
ast_parameter_declarator() :
type(NULL),
identifier(NULL),
- is_array(false),
- array_size(NULL),
+ array_specifier(NULL),
formal_parameter(false),
is_void(false)
{
ast_fully_specified_type *type;
const char *identifier;
- int is_array;
- ast_expression *array_size;
+ ast_array_specifier *array_specifier;
static void parameters_to_hir(exec_list *ast_parameters,
bool formal, exec_list *ir_parameters,
ast_node *body;
-private:
/**
* 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(class ir_loop *, struct _mesa_glsl_parse_state *);
+ void condition_to_hir(exec_list *, struct _mesa_glsl_parse_state *);
};
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,
class ast_interface_block : public ast_node {
public:
ast_interface_block(ast_type_qualifier layout,
- const char *instance_name,
- ast_expression *array_size)
+ const char *instance_name,
+ ast_array_specifier *array_specifier)
: layout(layout), block_name(NULL), instance_name(instance_name),
- array_size(array_size)
+ array_specifier(array_specifier)
{
- /* empty */
}
virtual ir_rvalue *hir(exec_list *instructions,
/**
* Declared array size of the block instance
*
- * If the block is not declared as an array, this field will be \c NULL.
- *
- * \note
- * A block can only be an array if it also has an instance name. If this
- * field is not \c NULL, ::instance_name must also not be \c NULL.
+ * If the block is not declared as an array or if the block instance array
+ * is unsized, this field will be \c NULL.
*/
- ast_expression *array_size;
+ 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
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);
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);
+
#endif /* AST_H */
projects / mesa.git / blobdiff