blob: 5c9cbc272084b5cfb266c7b208b5cab4d5a2f0eb [file] [log] [blame]
#!/usr/bin/env python3
# Copyright 2017 The Dawn & Tint Authors
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import json, os, sys
from collections import namedtuple
from generator_lib import Generator, run_generator, FileRender
############################################################
# OBJECT MODEL
############################################################
class Metadata:
def __init__(self, metadata):
self.api = metadata['api']
self.namespace = metadata['namespace']
self.c_prefix = metadata.get('c_prefix', self.namespace.upper())
self.proc_table_prefix = metadata['proc_table_prefix']
self.impl_dir = metadata.get('impl_dir', '')
self.native_namespace = metadata['native_namespace']
self.copyright_year = metadata.get('copyright_year', None)
self.kotlin_package = 'android.dawn'
self.kotlin_path = self.kotlin_package.replace('.', '/')
class Name:
def __init__(self, name, native=False):
self.native = native
self.name = name
if native:
self.chunks = [name]
else:
self.chunks = name.split(' ')
def get(self):
return self.name
def CamelChunk(self, chunk):
return chunk[0].upper() + chunk[1:]
def canonical_case(self):
return ' '.join(self.chunks)
def concatcase(self):
return ''.join(self.chunks)
def camelCase(self):
return self.chunks[0] + ''.join(
[self.CamelChunk(chunk) for chunk in self.chunks[1:]])
def CamelCase(self):
return ''.join([self.CamelChunk(chunk) for chunk in self.chunks])
def SNAKE_CASE(self):
return '_'.join([chunk.upper() for chunk in self.chunks])
def snake_case(self):
return '_'.join(self.chunks)
def namespace_case(self):
return '::'.join(self.chunks)
def Dirs(self):
return '/'.join(self.chunks)
def js_enum_case(self):
result = self.chunks[0].lower()
for chunk in self.chunks[1:]:
if not result[-1].isdigit():
result += '-'
result += chunk.lower()
return result
def concat_names(*names):
return ' '.join([name.canonical_case() for name in names])
class Type:
def __init__(self, name, json_data, native=False):
self.json_data = json_data
self.dict_name = name
self.name = Name(name, native=native)
self.category = json_data['category']
self.is_wire_transparent = False
EnumValue = namedtuple('EnumValue', ['name', 'value', 'valid', 'json_data'])
class EnumType(Type):
def __init__(self, is_enabled, name, json_data):
Type.__init__(self, name, json_data)
self.values = []
self.hasUndefined = False
self.contiguousFromZero = True
lastValue = -1
for m in self.json_data['values']:
if not is_enabled(m):
continue
value = m['value']
name = m['name']
if name == "undefined":
assert value == 0
self.hasUndefined = True
if value != lastValue + 1:
self.contiguousFromZero = False
lastValue = value
self.values.append(
EnumValue(Name(name), value, m.get('valid', True), m))
# Assert that all values are unique in enums
all_values = set()
for value in self.values:
if value.value in all_values:
raise Exception("Duplicate value {} in enum {}".format(
value.value, name))
all_values.add(value.value)
self.is_wire_transparent = True
BitmaskValue = namedtuple('BitmaskValue', ['name', 'value', 'json_data'])
class BitmaskType(Type):
def __init__(self, is_enabled, name, json_data):
Type.__init__(self, name, json_data)
self.values = [
BitmaskValue(Name(m['name']), m['value'], m)
for m in self.json_data['values'] if is_enabled(m)
]
self.full_mask = 0
for value in self.values:
self.full_mask = self.full_mask | value.value
self.is_wire_transparent = True
class CallbackFunctionType(Type):
def __init__(self, is_enabled, name, json_data):
Type.__init__(self, name, json_data)
self.return_type = None
self.arguments = []
class FunctionPointerType(Type):
def __init__(self, is_enabled, name, json_data):
Type.__init__(self, name, json_data)
self.return_type = None
self.arguments = []
class TypedefType(Type):
def __init__(self, is_enabled, name, json_data):
Type.__init__(self, name, json_data)
self.type = None
class NativeType(Type):
def __init__(self, is_enabled, name, json_data):
Type.__init__(self, name, json_data, native=True)
self.is_wire_transparent = json_data.get('wire transparent', True)
# Methods and structures are both "records", so record members correspond to
# method arguments or structure members.
class RecordMember:
def __init__(self,
name,
typ,
annotation,
json_data,
optional=False,
is_return_value=False,
default_value=None,
skip_serialize=False):
self.name = name
self.type = typ
self.annotation = annotation
self.json_data = json_data
self.length = None
self.optional = optional
self.is_return_value = is_return_value
self.handle_type = None
self.id_type = None
self.default_value = default_value
self.skip_serialize = skip_serialize
def set_handle_type(self, handle_type):
assert self.type.dict_name == "ObjectHandle"
self.handle_type = handle_type
def set_id_type(self, id_type):
assert self.type.dict_name == "ObjectId"
self.id_type = id_type
@property
def requires_struct_defaulting(self):
if self.annotation != "value":
return False
if self.type.category == "structure":
return self.type.any_member_requires_struct_defaulting
elif self.type.category == "enum":
return (self.type.hasUndefined
and self.default_value not in [None, "undefined"])
else:
return False
Method = namedtuple(
'Method', ['name', 'return_type', 'arguments', 'autolock', 'json_data'])
class ObjectType(Type):
def __init__(self, is_enabled, name, json_data):
json_data_override = {'methods': []}
if 'methods' in json_data:
json_data_override['methods'] = [
m for m in json_data['methods'] if is_enabled(m)
]
Type.__init__(self, name, dict(json_data, **json_data_override))
class Record:
def __init__(self, name):
self.name = Name(name)
self.members = []
self.may_have_dawn_object = False
def update_metadata(self):
def may_have_dawn_object(member):
if isinstance(member.type, ObjectType):
return True
elif isinstance(member.type, StructureType):
return member.type.may_have_dawn_object
else:
return False
self.may_have_dawn_object = any(
may_have_dawn_object(member) for member in self.members)
# Set may_have_dawn_object to true if the type is chained or
# extensible. Chained structs may contain a Dawn object.
if isinstance(self, StructureType):
self.may_have_dawn_object = (self.may_have_dawn_object
or self.chained or self.extensible)
class StructureType(Record, Type):
def __init__(self, is_enabled, name, json_data):
Record.__init__(self, name)
json_data_override = {}
if 'members' in json_data:
json_data_override['members'] = [
m for m in json_data['members'] if is_enabled(m)
]
Type.__init__(self, name, dict(json_data, **json_data_override))
self.chained = json_data.get('chained', None)
self.extensible = json_data.get('extensible', None)
if self.chained:
assert self.chained == 'in' or self.chained == 'out'
assert 'chain roots' in json_data
self.chain_roots = []
if self.extensible:
assert self.extensible == 'in' or self.extensible == 'out'
# Chained structs inherit from wgpu::ChainedStruct, which has
# nextInChain, so setting both extensible and chained would result in
# two nextInChain members.
assert not (self.extensible and self.chained)
self.extensions = []
def update_metadata(self):
Record.update_metadata(self)
if self.may_have_dawn_object:
self.is_wire_transparent = False
return
assert not (self.chained or self.extensible)
def get_is_wire_transparent(member):
return member.type.is_wire_transparent and member.annotation == 'value'
self.is_wire_transparent = all(
get_is_wire_transparent(m) for m in self.members)
@property
def output(self):
return self.chained == "out" or self.extensible == "out"
@property
def has_free_members_function(self):
if not self.output:
return False
for m in self.members:
if m.annotation != 'value':
return True
return False
@property
def any_member_requires_struct_defaulting(self):
return any(member.requires_struct_defaulting
for member in self.members)
class CallbackInfoType(StructureType):
def __init__(self, is_enabled, name, json_data):
StructureType.__init__(self, is_enabled, name, json_data)
self.extensible = 'in'
class ConstantDefinition():
def __init__(self, is_enabled, name, json_data):
self.type = None
self.value = json_data['value']
self.json_data = json_data
self.name = Name(name)
class FunctionDeclaration():
def __init__(self, is_enabled, name, json_data, no_cpp=False):
self.return_type = None
self.arguments = []
self.json_data = json_data
self.name = Name(name)
self.no_cpp = no_cpp
class Command(Record):
def __init__(self, name, members=None):
Record.__init__(self, name)
self.members = members or []
self.derived_object = None
self.derived_method = None
def linked_record_members(json_data, types):
members = []
members_by_name = {}
for m in json_data:
member = RecordMember(Name(m['name']),
types[m['type']],
m.get('annotation', 'value'),
m,
optional=m.get('optional', False),
is_return_value=m.get('is_return_value', False),
default_value=m.get('default', None),
skip_serialize=m.get('skip_serialize', False))
handle_type = m.get('handle_type')
if handle_type:
member.set_handle_type(types[handle_type])
id_type = m.get('id_type')
if id_type:
member.set_id_type(types[id_type])
members.append(member)
members_by_name[member.name.canonical_case()] = member
for (member, m) in zip(members, json_data):
if member.annotation != 'value':
if not 'length' in m:
if member.type.category != 'object':
member.length = "constant"
member.constant_length = 1
else:
assert False
elif m['length'] == 'strlen':
member.length = 'strlen'
elif isinstance(m['length'], int):
assert m['length'] > 0
member.length = "constant"
member.constant_length = m['length']
else:
member.length = members_by_name[m['length']]
return members
def mark_lengths_non_serializable_lpm(record_members):
# Remove member length values from command metadata,
# these are set to the length of the protobuf array.
for record_member in record_members:
lengths = set()
for member in record_member.members:
lengths.add(member.length)
for member in record_member.members:
if member in lengths:
member.skip_serialize = True
############################################################
# PARSE
############################################################
def link_object(obj, types):
# Disable method's autolock if obj's "no autolock" = True
obj_scoped_autolock_enabled = not obj.json_data.get('no autolock', False)
def make_method(json_data):
arguments = linked_record_members(json_data.get('args', []), types)
autolock_enabled = obj_scoped_autolock_enabled and not json_data.get(
'no autolock', False)
return Method(Name(json_data['name']),
types[json_data.get('returns', 'void')], arguments,
autolock_enabled, json_data)
obj.methods = [make_method(m) for m in obj.json_data.get('methods', [])]
obj.methods.sort(key=lambda method: method.name.canonical_case())
def link_structure(struct, types):
struct.members = linked_record_members(struct.json_data['members'], types)
for root in struct.json_data.get('chain roots', []):
struct.chain_roots.append(types[root])
types[root].extensions.append(struct)
struct.chain_roots = [types[root] for root in struct.json_data.get('chain roots', [])]
assert all((root.category == 'structure' for root in struct.chain_roots))
def link_function_pointer(function_pointer, types):
link_function(function_pointer, types)
def link_typedef(typedef, types):
typedef.type = types[typedef.json_data['type']]
def link_constant(constant, types):
constant.type = types[constant.json_data['type']]
assert constant.type.name.native
def link_function(function, types):
function.return_type = types[function.json_data.get('returns', 'void')]
function.arguments = linked_record_members(function.json_data['args'],
types)
# Sort structures so that if struct A has struct B as a member, then B is
# listed before A.
#
# This is a form of topological sort where we try to keep the order reasonably
# similar to the original order (though the sort isn't technically stable).
#
# It works by computing for each struct type what is the depth of its DAG of
# dependents, then re-sorting based on that depth using Python's stable sort.
# This makes a toposort because if A depends on B then its depth will be bigger
# than B's. It is also nice because all nodes with the same depth are kept in
# the input order.
def topo_sort_structure(structs):
for struct in structs:
struct.visited = False
struct.subdag_depth = 0
def compute_depth(struct):
if struct.visited:
return struct.subdag_depth
max_dependent_depth = 0
for member in struct.members:
if member.type.category == 'structure':
max_dependent_depth = max(max_dependent_depth,
compute_depth(member.type) + 1)
struct.subdag_depth = max_dependent_depth
struct.visited = True
return struct.subdag_depth
for struct in structs:
compute_depth(struct)
result = sorted(structs, key=lambda struct: struct.subdag_depth)
for struct in structs:
del struct.visited
del struct.subdag_depth
return result
def parse_json(json, enabled_tags, disabled_tags=None):
is_enabled = lambda json_data: item_is_enabled(
enabled_tags, json_data) and not item_is_disabled(
disabled_tags, json_data)
category_to_parser = {
'bitmask': BitmaskType,
'callback function': CallbackFunctionType,
'callback info': CallbackInfoType,
'enum': EnumType,
'native': NativeType,
'function pointer': FunctionPointerType,
'object': ObjectType,
'structure': StructureType,
'typedef': TypedefType,
'constant': ConstantDefinition,
'function': FunctionDeclaration
}
types = {}
by_category = {}
for name in category_to_parser.keys():
by_category[name] = []
for (name, json_data) in json.items():
if name[0] == '_' or not is_enabled(json_data):
continue
category = json_data['category']
parsed = category_to_parser[category](is_enabled, name, json_data)
by_category[category].append(parsed)
types[name] = parsed
for obj in by_category['object']:
link_object(obj, types)
for struct in by_category['structure']:
link_structure(struct, types)
if struct.has_free_members_function:
name = struct.name.get() + " free members"
func_decl = FunctionDeclaration(
True,
name, {
"returns":
"void",
"args": [{
"name": "value",
"type": struct.name.get(),
"annotation": "value",
}]
},
no_cpp=True)
types[name] = func_decl
by_category['function'].append(func_decl)
for callback_info in by_category['callback info']:
link_structure(callback_info, types)
for callback_function in by_category['callback function']:
link_function_pointer(callback_function, types)
for function_pointer in by_category['function pointer']:
link_function_pointer(function_pointer, types)
for typedef in by_category['typedef']:
link_typedef(typedef, types)
for constant in by_category['constant']:
link_constant(constant, types)
for function in by_category['function']:
link_function(function, types)
for category in by_category.keys():
by_category[category] = sorted(
by_category[category], key=lambda typ: typ.name.canonical_case())
by_category['structure'] = topo_sort_structure(by_category['structure'])
for struct in by_category['structure']:
struct.update_metadata()
api_params = {
'types': types,
'by_category': by_category,
'enabled_tags': enabled_tags,
'disabled_tags': disabled_tags,
}
return {
'metadata': Metadata(json['_metadata']),
'types': types,
'by_category': by_category,
'enabled_tags': enabled_tags,
'disabled_tags': disabled_tags,
'c_methods': lambda typ: c_methods(api_params, typ),
'c_methods_sorted_by_name': get_c_methods_sorted_by_name(api_params),
}
############################################################
# WIRE STUFF
############################################################
# Create wire commands from api methods
def compute_wire_params(api_params, wire_json):
wire_params = api_params.copy()
types = wire_params['types']
commands = []
return_commands = []
wire_json['special items']['client_handwritten_commands'] += wire_json[
'special items']['client_side_commands']
# Generate commands from object methods
for api_object in wire_params['by_category']['object']:
for method in api_object.methods:
command_name = concat_names(api_object.name, method.name)
command_suffix = Name(command_name).CamelCase()
# Only object return values or void are supported.
# Other methods must be handwritten.
is_object = method.return_type.category == 'object'
is_void = method.return_type.name.canonical_case() == 'void'
if not (is_object or is_void):
assert command_suffix in (
wire_json['special items']['client_handwritten_commands']
), command_suffix
continue
if command_suffix in (
wire_json['special items']['client_side_commands']):
continue
# Create object method commands by prepending "self"
members = [
RecordMember(Name('self'), types[api_object.dict_name],
'value', {})
]
members += method.arguments
# Client->Server commands that return an object return the
# result object handle
if method.return_type.category == 'object':
result = RecordMember(Name('result'),
types['ObjectHandle'],
'value', {},
is_return_value=True)
result.set_handle_type(method.return_type)
members.append(result)
command = Command(command_name, members)
command.derived_object = api_object
command.derived_method = method
commands.append(command)
for (name, json_data) in wire_json['commands'].items():
commands.append(Command(name, linked_record_members(json_data, types)))
for (name, json_data) in wire_json['return commands'].items():
return_commands.append(
Command(name, linked_record_members(json_data, types)))
wire_params['cmd_records'] = {
'command': commands,
'return command': return_commands
}
for commands in wire_params['cmd_records'].values():
for command in commands:
command.update_metadata()
commands.sort(key=lambda c: c.name.canonical_case())
wire_params.update(wire_json.get('special items', {}))
return wire_params
############################################################
# DAWN LPM FUZZ STUFF
############################################################
def compute_lpm_params(api_and_wire_params, lpm_json):
# Start with all commands in dawn.json and dawn_wire.json
lpm_params = api_and_wire_params.copy()
# Commands that are built through codegen
generated_commands = []
# All commands, including hand written commands that we can't generate
# through codegen
all_commands = []
# Remove blocklisted commands from protobuf generation params
blocklisted_cmds_proto = lpm_json.get('blocklisted_cmds')
custom_cmds_proto = lpm_json.get('custom_cmds')
for command in lpm_params['cmd_records']['command']:
blocklisted = command.name.get() in blocklisted_cmds_proto
custom = command.name.get() in custom_cmds_proto
if blocklisted:
continue
if not custom:
generated_commands.append(command)
all_commands.append(command)
# Set all fields that are marked as the "length" of another field to
# skip_serialize. The values passed by libprotobuf-mutator will cause
# an instant crash during serialization if these don't match the length
# of the data they are passing. These values aren't used in
# deserialization.
mark_lengths_non_serializable_lpm(
api_and_wire_params['cmd_records']['command'])
mark_lengths_non_serializable_lpm(
api_and_wire_params['by_category']['structure'])
lpm_params['cmd_records'] = {
'proto_generated_commands': generated_commands,
'proto_all_commands': all_commands,
'cpp_generated_commands': generated_commands,
'lpm_info': lpm_json.get("lpm_info")
}
return lpm_params
def as_protobufTypeLPM(member):
assert 'type' in member.json_data
if member.type.name.native:
typ = member.json_data['type']
cpp_to_protobuf_type = {
"bool": "bool",
"float": "float",
"double": "double",
"int8_t": "int32",
"int16_t": "int32",
"int32_t": "int32",
"int64_t": "int64",
"uint8_t": "uint32",
"uint16_t": "uint32",
"uint32_t": "uint32",
"uint64_t": "uint64",
"size_t": "uint64",
}
assert typ in cpp_to_protobuf_type
return cpp_to_protobuf_type[typ]
return member.type.name.CamelCase()
# Helper that generates names for protobuf grammars from contents
# of dawn*.json like files. example: membera
def as_protobufNameLPM(*names):
# `descriptor` is a reserved keyword in lib-protobuf-mutator
if (names[0].concatcase() == "descriptor"):
return "desc"
return as_varName(*names)
# Helper to generate member accesses within C++ of protobuf objects
# example: cmd.membera().memberb()
def as_protobufMemberNameLPM(*names):
# `descriptor` is a reserved keyword in lib-protobuf-mutator
if (names[0].concatcase() == "descriptor"):
return "desc"
return ''.join([name.concatcase().lower() for name in names])
def unreachable_code():
assert False
#############################################################
# Generator
#############################################################
def as_varName(*names):
return names[0].camelCase() + ''.join(
[name.CamelCase() for name in names[1:]])
def as_cType(c_prefix, name):
# Special case for 'bool' because it has a typedef for compatibility.
if name.native and name.get() != 'bool':
return name.concatcase()
else:
return c_prefix + name.CamelCase()
def as_cReturnType(c_prefix, typ):
if typ.category != 'bitmask':
return as_cType(c_prefix, typ.name)
else:
return as_cType(c_prefix, typ.name) + 'Flags'
def as_cppType(name):
# Special case for 'bool' because it has a typedef for compatibility.
if name.native and name.get() != 'bool':
return name.concatcase()
else:
return name.CamelCase()
def as_ktName(name):
return '_' + name if '0' <= name[0] <= '9' else name
def as_jsEnumValue(value):
if 'jsrepr' in value.json_data: return value.json_data['jsrepr']
return "'" + value.name.js_enum_case() + "'"
def convert_cType_to_cppType(typ, annotation, arg, indent=0):
if typ.category == 'native':
return arg
if annotation == 'value':
if typ.category == 'object':
return '{}::Acquire({})'.format(as_cppType(typ.name), arg)
elif typ.category == 'structure':
converted_members = [
convert_cType_to_cppType(
member.type, member.annotation,
'{}.{}'.format(arg, as_varName(member.name)), indent + 1)
for member in typ.members
]
converted_members = [(' ' * 4) + m for m in converted_members]
converted_members = ',\n'.join(converted_members)
return as_cppType(typ.name) + ' {\n' + converted_members + '\n}'
elif typ.category == 'function pointer':
return 'reinterpret_cast<{}>({})'.format(as_cppType(typ.name), arg)
else:
return 'static_cast<{}>({})'.format(as_cppType(typ.name), arg)
else:
return 'reinterpret_cast<{} {}>({})'.format(as_cppType(typ.name),
annotation, arg)
def decorate(name, typ, arg, make_const=False):
maybe_const = ' const ' if make_const else ' '
if arg.annotation == 'value':
return typ + maybe_const + name
elif arg.annotation == '*':
return typ + ' *' + maybe_const + name
elif arg.annotation == 'const*':
return typ + ' const *' + maybe_const + name
elif arg.annotation == 'const*const*':
return 'const ' + typ + '* const *' + maybe_const + name
else:
assert False
def annotated(typ, arg, make_const=False):
name = as_varName(arg.name)
return decorate(name, typ, arg, make_const)
def item_is_enabled(enabled_tags, json_data):
tags = json_data.get('tags')
if tags is None: return True
return any(tag in enabled_tags for tag in tags)
def item_is_disabled(disabled_tags, json_data):
if disabled_tags is None: return False
tags = json_data.get('tags')
if tags is None: return False
return any(tag in disabled_tags for tag in tags)
def as_cppEnum(value_name):
assert not value_name.native
if value_name.concatcase()[0].isdigit():
return "e" + value_name.CamelCase()
return value_name.CamelCase()
def as_MethodSuffix(type_name, method_name):
assert not type_name.native and not method_name.native
return type_name.CamelCase() + method_name.CamelCase()
def as_CppMethodSuffix(type_name, method_name):
assert not type_name.native and not method_name.native
original_method_name_str = method_name.CamelCase()
if method_name.chunks[-1] == 'f':
return type_name.CamelCase() + original_method_name_str[:-1]
return type_name.CamelCase() + original_method_name_str
def as_frontendType(metadata, typ):
if typ.category == 'object':
return typ.name.CamelCase() + 'Base*'
elif typ.category in ['bitmask', 'enum'] or typ.name.get() == 'bool':
return metadata.namespace + '::' + typ.name.CamelCase()
elif typ.category == 'structure':
return as_cppType(typ.name)
else:
return as_cType(metadata.c_prefix, typ.name)
def as_wireType(metadata, typ):
if typ.category == 'object':
return typ.name.CamelCase() + '*'
elif typ.category in ['bitmask', 'enum', 'structure']:
return metadata.c_prefix + typ.name.CamelCase()
else:
return as_cppType(typ.name)
def c_methods(params, typ):
return typ.methods + [
# TODO(dawn:2234): Deprecated. Remove when no longer used.
Method(Name('reference'), params['types']['void'], [], False, {}),
Method(Name('add ref'), params['types']['void'], [], False, {}),
Method(Name('release'), params['types']['void'], [], False, {}),
]
def get_c_methods_sorted_by_name(api_params):
unsorted = [(as_MethodSuffix(typ.name, method.name), typ, method) \
for typ in api_params['by_category']['object'] \
for method in c_methods(api_params, typ) ]
return [(typ, method) for (_, typ, method) in sorted(unsorted)]
def has_callback_arguments(method):
return any(arg.type.category == 'function pointer' for arg in method.arguments)
# TODO: crbug.com/dawn/2509 - Remove this helper when once we deprecate older APIs.
def has_callback_info(method):
return method.return_type.name.get() == 'future' and any(
arg.name.get() == 'callback info'
and arg.type.category != 'callback info' for arg in method.arguments)
def has_callbackInfoStruct(method):
return any(arg.type.category == 'callback info'
for arg in method.arguments)
def is_wire_serializable(type):
# Function pointers, callback functions, and "void *" types (i.e. userdata) cannot
# be serialized.
return (type.category != 'function pointer'
and type.category != 'callback function'
and type.name.get() != 'void *')
def make_base_render_params(metadata):
c_prefix = metadata.c_prefix
def as_cTypeEnumSpecialCase(typ):
if typ.category == 'bitmask':
return as_cType(c_prefix, typ.name) + 'Flags'
return as_cType(c_prefix, typ.name)
def as_cEnum(type_name, value_name):
assert not type_name.native and not value_name.native
return c_prefix + type_name.CamelCase() + '_' + value_name.CamelCase()
def as_cMethodNamespaced(type_name, method_name, namespace=None):
c_method = c_prefix.lower()
if namespace is not None:
c_method += namespace.CamelCase()
if type_name is not None:
assert not type_name.native
c_method += type_name.CamelCase()
assert not method_name.native
c_method += method_name.CamelCase()
return c_method
def as_cMethod(type_name, method_name):
return as_cMethodNamespaced(type_name, method_name)
def as_cProc(type_name, method_name):
c_proc = c_prefix + 'Proc'
if type_name != None:
assert not type_name.native
c_proc += type_name.CamelCase()
assert not method_name.native
c_proc += method_name.CamelCase()
return c_proc
return {
'Name': lambda name: Name(name),
'as_annotated_cType': \
lambda arg, make_const=False: annotated(as_cTypeEnumSpecialCase(arg.type), arg, make_const),
'as_annotated_cppType': \
lambda arg, make_const=False: annotated(as_cppType(arg.type.name), arg, make_const),
'as_cEnum': as_cEnum,
'as_cppEnum': as_cppEnum,
'as_cMethod': as_cMethod,
'as_cMethodNamespaced': as_cMethodNamespaced,
'as_MethodSuffix': as_MethodSuffix,
'as_CppMethodSuffix': as_CppMethodSuffix,
'as_cProc': as_cProc,
'as_cType': lambda name: as_cType(c_prefix, name),
'as_cReturnType': lambda typ: as_cReturnType(c_prefix, typ),
'as_cppType': as_cppType,
'as_jsEnumValue': as_jsEnumValue,
'convert_cType_to_cppType': convert_cType_to_cppType,
'as_varName': as_varName,
'decorate': decorate,
'as_ktName': as_ktName,
'has_callbackInfoStruct': has_callbackInfoStruct,
}
class MultiGeneratorFromDawnJSON(Generator):
def get_description(self):
return 'Generates code for various target from Dawn.json.'
def add_commandline_arguments(self, parser):
allowed_targets = [
'dawn_headers', 'cpp_headers', 'cpp', 'proc', 'mock_api', 'wire',
'native_utils', 'dawn_lpmfuzz_cpp', 'dawn_lpmfuzz_proto', 'kotlin'
]
parser.add_argument('--dawn-json',
required=True,
type=str,
help='The DAWN JSON definition to use.')
parser.add_argument('--wire-json',
default=None,
type=str,
help='The DAWN WIRE JSON definition to use.')
parser.add_argument("--lpm-json",
default=None,
type=str,
help='The DAWN LPM FUZZER definitions to use.')
parser.add_argument(
'--targets',
required=True,
type=str,
help=
'Comma-separated subset of targets to output. Available targets: '
+ ', '.join(allowed_targets))
def get_file_renders(self, args):
with open(args.dawn_json) as f:
loaded_json = json.loads(f.read())
targets = args.targets.split(',')
wire_json = None
if args.wire_json:
with open(args.wire_json) as f:
wire_json = json.loads(f.read())
lpm_json = None
if args.lpm_json:
with open(args.lpm_json) as f:
lpm_json = json.loads(f.read())
renders = []
params_dawn = parse_json(loaded_json,
enabled_tags=['dawn', 'native', 'deprecated'])
metadata = params_dawn['metadata']
RENDER_PARAMS_BASE = make_base_render_params(metadata)
api = metadata.api.lower()
prefix = metadata.proc_table_prefix.lower()
if 'headers' in targets:
renders.append(
FileRender('api.h', 'include/dawn/' + api + '.h',
[RENDER_PARAMS_BASE, params_dawn]))
renders.append(
FileRender('dawn/wire/client/api.h',
'include/dawn/wire/client/' + api + '.h',
[RENDER_PARAMS_BASE, params_dawn]))
renders.append(
FileRender('dawn_proc_table.h',
'include/dawn/' + prefix + '_proc_table.h',
[RENDER_PARAMS_BASE, params_dawn]))
if 'cpp_headers' in targets:
renders.append(
FileRender('api_cpp.h', 'include/dawn/' + api + '_cpp.h', [
RENDER_PARAMS_BASE, params_dawn, {
'c_header': api + '/' + api + '.h',
'c_namespace': None,
}
]))
renders.append(
FileRender(
'api_cpp.h', 'include/dawn/wire/client/' + api + '_cpp.h',
[
RENDER_PARAMS_BASE, params_dawn, {
'c_header': 'dawn/wire/client/' + api + '.h',
'c_namespace': Name('dawn wire client'),
}
]))
renders.append(
FileRender('api_cpp_print.h',
'include/dawn/' + api + '_cpp_print.h',
[RENDER_PARAMS_BASE, params_dawn]))
renders.append(
FileRender('api_cpp_chained_struct.h',
'include/webgpu/' + api + '_cpp_chained_struct.h',
[RENDER_PARAMS_BASE, params_dawn]))
if 'proc' in targets:
renders.append(
FileRender('dawn_proc.cpp', 'src/dawn/' + prefix + '_proc.cpp',
[RENDER_PARAMS_BASE, params_dawn]))
renders.append(
FileRender('dawn_thread_dispatch_proc.cpp',
'src/dawn/' + prefix + '_thread_dispatch_proc.cpp',
[RENDER_PARAMS_BASE, params_dawn]))
if 'webgpu_dawn_native_proc' in targets:
renders.append(
FileRender('dawn/native/api_dawn_native_proc.cpp',
'src/dawn/native/webgpu_dawn_native_proc.cpp',
[RENDER_PARAMS_BASE, params_dawn]))
if 'webgpu_headers' in targets:
params_upstream = parse_json(loaded_json,
enabled_tags=['upstream', 'native'],
disabled_tags=['dawn'])
renders.append(
FileRender('api.h', 'webgpu-headers/' + api + '.h',
[RENDER_PARAMS_BASE, params_upstream]))
if 'emscripten_bits' in targets:
assert api == 'webgpu'
params_emscripten = parse_json(loaded_json,
enabled_tags=['emscripten'])
# system/include/webgpu
renders.append(
FileRender('api.h',
'emscripten-bits/system/include/webgpu/webgpu.h',
[RENDER_PARAMS_BASE, params_emscripten]))
renders.append(
FileRender(
'api_cpp.h',
'emscripten-bits/system/include/webgpu/webgpu_cpp.h', [
RENDER_PARAMS_BASE, params_emscripten, {
'c_header': api + '/' + api + '.h',
'c_namespace': None,
}
]))
renders.append(
FileRender(
'api_cpp_chained_struct.h',
'emscripten-bits/system/include/webgpu/webgpu_cpp_chained_struct.h',
[RENDER_PARAMS_BASE, params_emscripten]))
# Snippets to paste into existing Emscripten files
renders.append(
FileRender('api_struct_info.json',
'emscripten-bits/webgpu_struct_info.json',
[RENDER_PARAMS_BASE, params_emscripten]))
renders.append(
FileRender('library_api_enum_tables.js',
'emscripten-bits/library_webgpu_enum_tables.js',
[RENDER_PARAMS_BASE, params_emscripten]))
if 'mock_api' in targets:
mock_params = [
RENDER_PARAMS_BASE, params_dawn, {
'has_callback_arguments': has_callback_arguments,
"has_callback_info": has_callback_info
}
]
renders.append(
FileRender('mock_api.h', 'src/dawn/mock_' + api + '.h',
mock_params))
renders.append(
FileRender('mock_api.cpp', 'src/dawn/mock_' + api + '.cpp',
mock_params))
if 'native_utils' in targets:
frontend_params = [
RENDER_PARAMS_BASE,
params_dawn,
{
# TODO: as_frontendType and co. take a Type, not a Name :(
'as_frontendType': lambda typ: as_frontendType(metadata, typ),
'as_annotated_frontendType': \
lambda arg: annotated(as_frontendType(metadata, arg.type), arg),
}
]
impl_dir = metadata.impl_dir + '/' if metadata.impl_dir else ''
native_dir = impl_dir + Name(metadata.native_namespace).Dirs()
namespace = metadata.namespace
renders.append(
FileRender('dawn/native/ValidationUtils.h',
'src/' + native_dir + '/ValidationUtils_autogen.h',
frontend_params))
renders.append(
FileRender('dawn/native/ValidationUtils.cpp',
'src/' + native_dir + '/ValidationUtils_autogen.cpp',
frontend_params))
renders.append(
FileRender('dawn/native/dawn_platform.h',
'src/' + native_dir + '/' + prefix + '_platform_autogen.h',
frontend_params))
renders.append(
FileRender('dawn/native/api_structs.h',
'src/' + native_dir + '/' + namespace + '_structs_autogen.h',
frontend_params))
renders.append(
FileRender('dawn/native/api_structs.cpp',
'src/' + native_dir + '/' + namespace + '_structs_autogen.cpp',
frontend_params))
renders.append(
FileRender('dawn/native/ProcTable.cpp',
'src/' + native_dir + '/ProcTable.cpp', frontend_params))
renders.append(
FileRender('dawn/native/ChainUtils.h',
'src/' + native_dir + '/ChainUtils_autogen.h',
frontend_params))
renders.append(
FileRender('dawn/native/ChainUtils.cpp',
'src/' + native_dir + '/ChainUtils_autogen.cpp',
frontend_params))
renders.append(
FileRender('dawn/native/Features.h',
'src/' + native_dir + '/Features_autogen.h',
frontend_params))
renders.append(
FileRender('dawn/native/Features.inl',
'src/' + native_dir + '/Features_autogen.inl',
frontend_params))
renders.append(
FileRender('dawn/native/api_absl_format.h',
'src/' + native_dir + '/' + api + '_absl_format_autogen.h',
frontend_params))
renders.append(
FileRender('dawn/native/api_absl_format.cpp',
'src/' + native_dir + '/' + api + '_absl_format_autogen.cpp',
frontend_params))
renders.append(
FileRender(
'dawn/native/api_StreamImpl.cpp', 'src/' + native_dir +
'/' + api + '_StreamImpl_autogen.cpp', frontend_params))
renders.append(
FileRender('dawn/native/ObjectType.h',
'src/' + native_dir + '/ObjectType_autogen.h',
frontend_params))
renders.append(
FileRender('dawn/native/ObjectType.cpp',
'src/' + native_dir + '/ObjectType_autogen.cpp',
frontend_params))
if 'wire' in targets:
params_dawn_wire = parse_json(loaded_json,
enabled_tags=['dawn', 'deprecated'],
disabled_tags=['native'])
additional_params = compute_wire_params(params_dawn_wire,
wire_json)
wire_params = [
RENDER_PARAMS_BASE, params_dawn_wire, {
'as_wireType': lambda type : as_wireType(metadata, type),
'as_annotated_wireType': \
lambda arg: annotated(as_wireType(metadata, arg.type), arg),
'is_wire_serializable': lambda type : is_wire_serializable(type),
}, additional_params
]
renders.append(
FileRender('dawn/wire/ObjectType.h',
'src/dawn/wire/ObjectType_autogen.h', wire_params))
renders.append(
FileRender('dawn/wire/WireCmd.h',
'src/dawn/wire/WireCmd_autogen.h', wire_params))
renders.append(
FileRender('dawn/wire/WireCmd.cpp',
'src/dawn/wire/WireCmd_autogen.cpp', wire_params))
renders.append(
FileRender('dawn/wire/client/ApiObjects.h',
'src/dawn/wire/client/ApiObjects_autogen.h',
wire_params))
renders.append(
FileRender('dawn/wire/client/ApiProcs.cpp',
'src/dawn/wire/client/ApiProcs_autogen.cpp',
wire_params))
renders.append(
FileRender('dawn/wire/client/ClientBase.h',
'src/dawn/wire/client/ClientBase_autogen.h',
wire_params))
renders.append(
FileRender('dawn/wire/client/ClientHandlers.cpp',
'src/dawn/wire/client/ClientHandlers_autogen.cpp',
wire_params))
renders.append(
FileRender(
'dawn/wire/client/ClientPrototypes.inc',
'src/dawn/wire/client/ClientPrototypes_autogen.inc',
wire_params))
renders.append(
FileRender('dawn/wire/server/ServerBase.h',
'src/dawn/wire/server/ServerBase_autogen.h',
wire_params))
renders.append(
FileRender('dawn/wire/server/ServerDoers.cpp',
'src/dawn/wire/server/ServerDoers_autogen.cpp',
wire_params))
renders.append(
FileRender('dawn/wire/server/ServerHandlers.cpp',
'src/dawn/wire/server/ServerHandlers_autogen.cpp',
wire_params))
renders.append(
FileRender(
'dawn/wire/server/ServerPrototypes.inc',
'src/dawn/wire/server/ServerPrototypes_autogen.inc',
wire_params))
renders.append(
FileRender('dawn/wire/server/WGPUTraits.h',
'src/dawn/wire/server/WGPUTraits_autogen.h',
wire_params))
if 'dawn_lpmfuzz_proto' in targets:
params_dawn_wire = parse_json(loaded_json,
enabled_tags=['dawn', 'deprecated'],
disabled_tags=['native'])
api_and_wire_params = compute_wire_params(params_dawn_wire,
wire_json)
fuzzer_params = compute_lpm_params(api_and_wire_params, lpm_json)
lpm_params = [
RENDER_PARAMS_BASE, params_dawn_wire, {
'as_protobufTypeLPM': as_protobufTypeLPM,
'as_protobufNameLPM': as_protobufNameLPM,
'unreachable': unreachable_code
}, api_and_wire_params, fuzzer_params
]
renders.append(
FileRender('dawn/fuzzers/lpmfuzz/dawn_lpm.proto',
'src/dawn/fuzzers/lpmfuzz/dawn_lpm_autogen.proto',
lpm_params))
renders.append(
FileRender(
'dawn/fuzzers/lpmfuzz/dawn_object_types_lpm.proto',
'src/dawn/fuzzers/lpmfuzz/dawn_object_types_lpm_autogen.proto',
lpm_params))
if 'dawn_lpmfuzz_cpp' in targets:
params_dawn_wire = parse_json(loaded_json,
enabled_tags=['dawn', 'deprecated'],
disabled_tags=['native'])
api_and_wire_params = compute_wire_params(params_dawn_wire,
wire_json)
fuzzer_params = compute_lpm_params(api_and_wire_params, lpm_json)
lpm_params = [
RENDER_PARAMS_BASE, params_dawn_wire, {
'as_protobufMemberName': as_protobufMemberNameLPM,
'unreachable_code': unreachable_code
}, api_and_wire_params, fuzzer_params
]
renders.append(
FileRender(
'dawn/fuzzers/lpmfuzz/DawnLPMSerializer.cpp',
'src/dawn/fuzzers/lpmfuzz/DawnLPMSerializer_autogen.cpp',
lpm_params))
renders.append(
FileRender(
'dawn/fuzzers/lpmfuzz/DawnLPMSerializer.h',
'src/dawn/fuzzers/lpmfuzz/DawnLPMSerializer_autogen.h',
lpm_params))
renders.append(
FileRender(
'dawn/fuzzers/lpmfuzz/DawnLPMConstants.h',
'src/dawn/fuzzers/lpmfuzz/DawnLPMConstants_autogen.h',
lpm_params))
if 'kotlin' in targets:
params_kotlin = parse_json(loaded_json,
enabled_tags=['dawn', 'native'])
for enum in (params_kotlin['by_category']['bitmask'] +
params_kotlin['by_category']['enum']):
renders.append(
FileRender(
'art/api_kotlin_enum.kt',
'java/' + metadata.kotlin_path + '/' +
enum.name.CamelCase() + '.kt',
[RENDER_PARAMS_BASE, params_kotlin, {
'enum': enum
}]))
renders.append(
FileRender('art/api_kotlin_constants.kt',
'java/' + metadata.kotlin_path + '/Constants.kt',
[RENDER_PARAMS_BASE, params_kotlin]))
return renders
def get_dependencies(self, args):
deps = [os.path.abspath(args.dawn_json)]
if args.wire_json != None:
deps += [os.path.abspath(args.wire_json)]
if args.lpm_json != None:
deps += [os.path.abspath(args.lpm_json)]
return deps
if __name__ == '__main__':
sys.exit(run_generator(MultiGeneratorFromDawnJSON()))