*/
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
ast_float_constant,
ast_bool_constant,
- ast_sequence
+ ast_sequence,
+ ast_aggregate
};
/**
bool cons;
};
+/**
+ * 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 */
+ }
+
+ ast_type_specifier *constructor_type;
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+};
/**
* Number of possible operators for an ast_expression
};
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 explicit_index:1;
+ /**
+ * Flag set if GL_ARB_shading_language_420pack "binding" layout
+ * qualifier is used.
+ */
+ unsigned explicit_binding:1;
+
/** \name Layout qualifiers for GL_AMD_conservative_depth */
/** \{ */
unsigned depth_any: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;
+ /** \} */
}
/** \brief Set of flags, accessed by name. */
q;
unsigned i;
} flags;
+ /** Precision of the type (highp/medium/lowp). */
+ unsigned precision:2;
+
/**
* Location specified via GL_ARB_explicit_attrib_location layout
*
*/
int index;
+ /** Maximum output vertices in GLSL 1.50 geometry shaders. */
+ int max_vertices;
+
+ /** Input or output primitive type in GLSL 1.50 geometry 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.
+ */
+ int binding;
+
/**
* 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.
*
class ast_struct_specifier : public ast_node {
public:
+ /**
+ * \brief Make a shallow copy of an ast_struct_specifier.
+ *
+ * Use only if the objects are allocated from the same context and will not
+ * be modified. Zeros the inherited ast_node's fields.
+ */
+ ast_struct_specifier(const ast_struct_specifier& that):
+ ast_node(), name(that.name), declarations(that.declarations),
+ is_declaration(that.is_declaration)
+ {
+ /* empty */
+ }
+
ast_struct_specifier(const char *identifier,
ast_declarator_list *declarator_list);
virtual void print(void) const;
const char *name;
/* List of ast_declarator_list * */
exec_list declarations;
+ bool is_declaration;
};
class ast_type_specifier : public ast_node {
public:
+ /**
+ * \brief Make a shallow copy of an ast_type_specifier, specifying array
+ * fields.
+ *
+ * Use only if the objects are allocated from the same context and will not
+ * be modified. Zeros the inherited ast_node's fields.
+ */
+ ast_type_specifier(const ast_type_specifier *that, bool is_array,
+ ast_expression *array_size)
+ : ast_node(), type_name(that->type_name), structure(that->structure),
+ is_array(is_array), array_size(array_size),
+ default_precision(that->default_precision)
+ {
+ /* empty */
+ }
+
/** 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)
+ is_array(false), array_size(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)
+ is_array(false), array_size(NULL),
+ default_precision(ast_precision_none)
{
/* empty */
}
bool is_array;
ast_expression *array_size;
- unsigned precision:2;
-
- bool is_precision_statement;
+ /** For precision statements, this is the given precision; otherwise none. */
+ unsigned default_precision:2;
};
virtual void print(void) const;
bool has_qualifiers() 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;
};
* is used to note these cases when no type is specified.
*/
int invariant;
-
- /**
- * Flag indicating that these declarators are in a uniform block,
- * allowing UBO type qualifiers.
- */
- bool ubo_qualifiers_valid;
};
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,
+ bool is_array,
+ ast_expression *array_size)
: layout(layout), block_name(NULL), instance_name(instance_name),
- array_size(array_size)
+ is_array(is_array), array_size(array_size)
{
- /* empty */
+ if (!is_array)
+ assert(array_size == NULL);
}
virtual ir_rvalue *hir(exec_list *instructions,
exec_list declarations;
/**
- * Declared array size of the block instance
- *
- * If the block is not declared as an array, this field will be \c NULL.
+ * True if the block is declared as an array
*
* \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.
+ * field is true, ::instance_name must also not be \c NULL.
+ */
+ bool is_array;
+
+ /**
+ * 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_expression *array_size;
};
+
+
+/**
+ * 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;
+};
+
/*@}*/
extern void
ir_rvalue *array, ir_rvalue *idx,
YYLTYPE &loc, YYLTYPE &idx_loc);
+extern void
+_mesa_ast_set_aggregate_type(const ast_type_specifier *type,
+ ast_expression *expr,
+ _mesa_glsl_parse_state *state);
+
void
emit_function(_mesa_glsl_parse_state *state, ir_function *f);
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