#!/usr/bin/env python #NOTE: If you make modifications here, consider whether they should #be duplicated in ../lsteamclient/gen_wrapper.py CLANG_PATH='/usr/lib/clang/15' from clang.cindex import Cursor, CursorKind, Index, TypeKind import concurrent.futures import os import re SDK_VERSIONS = [ "v1.26.7", "v1.23.7", "v1.16.8", "v1.14.15", "v1.13.10", "v1.12.5", "v1.11.11", "v1.10.30", "v1.9.16", "v1.8.19", "v1.7.15", "v1.6.10", "v1.5.17", "v1.4.18", "v1.3.22", "v1.2.10", "v1.1.3b", "v1.0.17", "v1.0.16", "v1.0.15", "v1.0.14", "v1.0.13", "v1.0.12", "v1.0.11", "v1.0.10", "v1.0.9", "v1.0.8", "v1.0.7", "v1.0.6", "v1.0.5", "v1.0.4", "v1.0.3a", #non-public build used by The Lab, see Proton github PR#2075 "v1.0.3", "v1.0.2", "v1.0.1", "v1.0.0", "v0.9.20", "v0.9.19", "v0.9.18", "v0.9.17", "v0.9.16", "v0.9.15", "v0.9.14", "v0.9.13", "v0.9.12", # "v0.9.11", problematic GetComponentState, may cause crash since we don't implement it "v0.9.10", "v0.9.9", "v0.9.8", "v0.9.7", "v0.9.6", # "v0.9.5", doesn't compile, fixed in 0.9.6 "v0.9.4", "0.9.3", "0.9.2", "0.9.1", "0.9.0", ] ABIS = ['u32', 'u64', 'w32', 'w64'] SDK_SOURCES = { "ivrclientcore.h": [ [ #classes "IVRApplications", "IVRChaperone", "IVRChaperoneSetup", "IVRCompositor", "IVRControlPanel", "IVRDriverManager", "IVRExtendedDisplay", "IVRNotifications", "IVRInput", "IVRIOBuffer", "IVRMailbox", "IVROverlay", "IVRRenderModels", "IVRResources", "IVRScreenshots", "IVRSettings", "IVRSystem", "IVRTrackedCamera", "IVRHeadsetView", "IVROverlayView", "IVRClientCore", ] ], } SDK_CLASSES = {klass: source for source, value in SDK_SOURCES.items() for klass in value[0]} # these structs are manually confirmed to be equivalent EXEMPT_STRUCTS = { "HmdColor_t", "HmdMatrix33_t", "HmdMatrix34_t", "HmdMatrix44_t", "HmdQuad_t", "HmdQuaternion_t", "HmdQuaternionf_t", "HmdVector2_t", "HmdVector3_t", "HmdVector3d_t", "HmdVector4_t", "IntersectionMaskCircle_t", "IntersectionMaskRectangle_t", "CVRSettingHelper", } # structs for which the size is important, either because of arrays or size parameters SIZED_STRUCTS = { "CameraVideoStreamFrameHeader_t", "Compositor_BenchmarkResults", "Compositor_CumulativeStats", "Compositor_StageRenderSettings", "InputAnalogActionData_t", "InputBindingInfo_t", "InputDigitalActionData_t", "InputOriginInfo_t", "InputPoseActionData_t", "InputSkeletalActionData_t", "InputSkeletonActionData_t", "Texture_t", "TrackedDevicePose_t", "VRActiveActionSet_t", "VRBoneTransform_t", "VRControllerState001_t", "VREvent_t", "VROverlayIntersectionMaskPrimitive_t", "VROverlayView_t", } STRUCTS_NEXT_IS_SIZE = [ "VREvent_t", "VRControllerState001_t", "InputAnalogActionData_t", "InputDigitalActionData_t", "InputPoseActionData_t", "InputSkeletalActionData_t", "CameraVideoStreamFrameHeader_t", "Compositor_CumulativeStats", "VRActiveActionSet_t", "InputOriginInfo_t", "InputBindingInfo_t", ] STRUCTS_NEXT_IS_SIZE_UNHANDLED = [ "VROverlayIntersectionMaskPrimitive_t" # not next, but next-next uint32 is the size ] STRUCTS_SIZE_FIELD = { "Compositor_OverlaySettings": ["size"], "Compositor_FrameTiming": ["size", "m_nSize"], "DriverDirectMode_FrameTiming": ["m_nSize"], } PATH_CONV_METHODS_UTOW = { "IVRScreenshots_GetScreenshotPropertyFilename": { "pchFilename": {"len": "cchFilename"}, "ret_size": True, }, # maybe? # "IVRRenderModels_GetRenderModelOriginalPath": { # "pchOriginalPath": {"len": unOriginalPathLen}, # }, # "IVRResources_GetResourceFullPath": { # "pchPathBuffer": {"len": unBufferLen}, # }, # IVRInput::GetInputSourceHandle # IVRIOBuffer::Open # TODO: LaunchInternalProcess, need steam cooperation } PATH_CONV_METHODS_WTOU = { "IVRInput_SetActionManifestPath": {"pchActionManifestPath"}, "IVRCompositor_SetOverlayFromFile": {"pchFilePath"}, "IVROverlay_SetOverlayFromFile": {"pchFilePath"}, "IVRApplications_AddApplicationManifest": {"pchApplicationManifestFullPath"}, "IVRApplications_RemoveApplicationManifest": {"pchApplicationManifestFullPath"}, "IVRScreenshots_RequestScreenshot": {"pchVRFilename", "pchPreviewFilename"}, "IVRScreenshots_TakeStereoScreenshot": {"pchVRFilename", "pchPreviewFilename"}, "IVRScreenshots_SubmitScreenshot": {"pchSourcePreviewFilename", "pchSourceVRFilename"}, "IVRControlPanel_undoc23": {"a"}, "IVRControlPanel_undoc27": {"a"}, "IVRCompositor_SetStageOverride_Async": {"pchRenderModelPath"}, # maybe? # "IVRResources_GetResourceFullPath": {"pchResourceTypeDirectory"}, # IVRInput::GetInputSourceHandle # IVRIOBuffer::Open # TODO: LaunchInternalProcess, need steam cooperation } all_classes = {} all_records = {} all_structs = {} all_sources = {} all_versions = {} unique_structs = [] MANUAL_METHODS = { "IVRClientCore_BIsHmdPresent": lambda ver, abi: abi == 'w', "IVRClientCore_Init": lambda ver, abi: abi == 'w', "IVRClientCore_GetGenericInterface": lambda ver, abi: abi == 'w', "IVRClientCore_Cleanup": lambda ver, abi: abi == 'w', "IVRSystem_GetDXGIOutputInfo": lambda ver, abi: abi == 'w', "IVRSystem_GetOutputDevice": lambda ver, abi: abi == 'w' and ver > 16, "IVRCompositor_Submit": lambda ver, abi: abi == 'w' and ver > 8, "IVRCompositor_SetSkyboxOverride": lambda ver, abi: abi == 'w' and ver > 8, "IVRCompositor_PostPresentHandoff": lambda ver, abi: abi == 'w', "IVRCompositor_WaitGetPoses": lambda ver, abi: abi == 'w' and ver > 15 and ver < 27, "IVRCompositor_GetVulkanDeviceExtensionsRequired": lambda ver, abi: abi == 'w', "IVRRenderModels_LoadTextureD3D11_Async": lambda ver, abi: abi == 'w', "IVRRenderModels_FreeTextureD3D11": lambda ver, abi: abi == 'w', "IVRRenderModels_LoadIntoTextureD3D11_Async": lambda ver, abi: abi == 'w', "IVRRenderModels_LoadTexture": True, "IVRRenderModels_LoadTexture_Async": True, "IVRRenderModels_FreeTexture": True, "IVRRenderModels_LoadRenderModel": lambda ver, abi: ver > 1, "IVRRenderModels_LoadRenderModel_Async": True, "IVRRenderModels_FreeRenderModel": lambda ver, abi: ver > 1, "IVRMailbox_undoc3": lambda ver, abi: abi == 'w', "IVROverlay_SetOverlayTexture": lambda ver, abi: abi == 'w', "IVRInput_GetDigitalActionData": lambda ver, abi: abi == 'w' and ver > 3, } def is_manual_method(klass, method, abi): version = re.search(r'(\d+)$', klass.version) key = f'{klass.name}_{method.name}' needs_manual = MANUAL_METHODS.get(key, False) if callable(needs_manual) and version: return needs_manual(int(version[0]), abi) return needs_manual class Padding: def __init__(self, offset, size): self.offset = offset self.size = size class Field: def __init__(self, cursor, struct, type, offset, name=None): self._cursor = cursor self._type = type self.name = cursor.spelling if not name else name self.type = cursor.type self.size = self.type.get_size() self.offset = offset def needs_conversion(self, other): return self._type.needs_conversion(other._type) class BasicType: def __init__(self, type, abi): self._type = type.get_canonical() self._abi = abi self._decl_order = 0 self._conv_cache = {} self.size = self._type.get_size() self.id = self._type.spelling @property def order(self): return self._decl_order def set_used(self, order=-1): if self._decl_order <= order: return self._decl_order = order def needs_conversion(self, other): if self._type.kind == TypeKind.POINTER and self._type.get_pointee().kind == TypeKind.FUNCTIONPROTO: return self._abi != other._abi return False class Struct: def __init__(self, sdkver, abi, cursor): self._cursor = cursor self._sdkver = sdkver self._abi = abi self._fields = None self._decl_order = 0 self._conv_cache = {} self.name = canonical_typename(self._cursor) self.name = self.name.removeprefix("vr::") self.type = self._cursor.type.get_canonical() self.size = self.type.get_size() self.align = self.type.get_align() self.id = f'{abi}_{self.name}_{sdkver}' if self._cursor.spelling in EXEMPT_STRUCTS: self._fields = [Padding(0, self.size)] @property def order(self): return self._decl_order def set_used(self, order=-1): if self._decl_order <= order: return self._decl_order = order [f._type.set_used(order - 1) for f in self.fields] @property def padded_fields(self): if self._fields: return self._fields size, self._fields = 0, [] for cursor in self._cursor.get_children(): if cursor.kind == CursorKind.CXX_BASE_SPECIFIER \ and len(list(cursor.type.get_fields())) > 0: base_type = Type(cursor.type, self._sdkver, self._abi) self._fields += base_type.padded_fields size = cursor.type.get_size() break for cursor in self.type.get_fields(): assert not cursor.is_bitfield() offset = self.type.get_offset(cursor.spelling) assert offset % 8 == 0 offset = offset // 8 # assert offset >= size or type(self) is Union if size < offset: self._fields.append(Padding(size, offset - size)) field_type = Type(cursor.type, self._sdkver, self._abi) self._fields.append(Field(cursor, self, field_type, offset)) size = max(size, offset + cursor.type.get_size()) if size < self.size: self._fields.append(Padding(size, self.size - size)) return self._fields @property def fields(self): return [f for f in self.padded_fields if type(f) is not Padding] def write_definition(self, out, prefix, converters): version = all_versions[sdkver][self.name] kind = 'union' if type(self) is Union else 'struct' wrapped = len(prefix) > 0 out(f'#pragma pack( push, {self.align} )\n') out(f'{kind} {prefix}{version}\n') out(u'{\n') for f in self.padded_fields: if type(f) is Field: out(f' {declspec(f._cursor, f.name, prefix, wrapped)};\n') else: out(f' uint8_t __pad_{f.offset}[{f.size}];\n') for conv in converters: out(u'#ifdef __cplusplus\n') out(f' operator {conv}{version}() const;\n') out(u'#endif /* __cplusplus */\n') out(u'};\n') out(u'#pragma pack( pop )\n\n') def write_checks(self, out, prefix): version = all_versions[sdkver][self.name] out(f'C_ASSERT( sizeof({prefix}{version}) >= {self.size} );\n') for f in self.fields: out(f'C_ASSERT( offsetof({prefix}{version}, {f.name}) == {f.offset} );\n') out(f'C_ASSERT( sizeof({prefix}{version}().{f.name}) >= {f.size} );\n') out(u'\n') def write_converter(self, prefix): version = all_versions[sdkver][self.name] out(f'{self._abi}_{version}::operator {prefix}{version}() const\n') out(u'{\n') out(f' {prefix}{version} ret;\n') for field in self.fields: out(f' ret.{field.name} = this->{field.name};\n') out(u' return ret;\n') out(u'}\n') def needs_conversion(self, other): if other.id in self._conv_cache: return self._conv_cache[other.id] self._conv_cache[other.id] = other._conv_cache[self.id] = True if self.name in SIZED_STRUCTS and self.size != other.size: return True if len(self.fields) != len(other.fields): return True if any([a.offset != b.offset or a.needs_conversion(b) for a, b in zip(self.fields, other.fields)]): return True self._conv_cache[other.id] = other._conv_cache[self.id] = False return False def get_children(self): return self._cursor.get_children() class Union(Struct): def __init__(self, sdkver, abi, cursor): super().__init__(sdkver, abi, cursor) class Method: def __init__(self, sdkver, abi, cursor, index, override): self._sdkver = sdkver self._abi = abi self._cursor = cursor self._index = index self._override = override self.result_type = cursor.result_type self.spelling = cursor.spelling @property def name(self): if self._override > 1: return f'{self.spelling}_{self._override}' return self.spelling def get_arguments(self): return self._cursor.get_arguments() def get_children(self): return self._cursor.get_children() class Destructor(Method): def __init__(self, sdkver, abi, cursor, index, override): super().__init__(sdkver, abi, cursor, index, override) @property def name(self): if self._override > 1: return f'destructor_{self._override}' return 'destructor' class Class: def __init__(self, sdkver, abi, cursor): self._cursor = cursor self._sdkver = sdkver self._abi = abi self._methods = None self._decl_order = 0 self.name = cursor.spelling self.filename = SDK_CLASSES.get(self.name, None) versions = all_versions[sdkver] self.version = versions.get(self.name, "") self.type = self._cursor.type.get_canonical() self.id = f'{abi}_{self.name}_{sdkver}' @property def methods(self): if self._methods: return self._methods overrides = {} is_method = lambda c: c.kind == CursorKind.CXX_METHOD and c.is_virtual_method() in_vtable = lambda c: is_method(c) or c.kind == CursorKind.DESTRUCTOR self._methods = [] for i, method in enumerate(filter(in_vtable, self._cursor.get_children())): index, override = overrides.get(method.spelling, (i, 1)) overrides[method.spelling] = (index, override + 1) if method.kind == CursorKind.DESTRUCTOR: self._methods.append(Destructor(self._sdkver, self._abi, method, index, override)) else: self._methods.append(Method(self._sdkver, self._abi, method, index, override)) return self._methods @property def full_name(self): if len(self.version) == 0: return self.name return f'{self.name}_{self.version}' @property def order(self): return self._decl_order def set_used(self, order=-1): if self._decl_order <= order: return self._decl_order = order def needs_conversion(self, other): return self._abi[0] != other._abi[0] def __eq__(self, other): return self._abi[0] == other._abi[0] def write_definition(self, out, prefix): out(f'struct {prefix}{self.full_name}\n') out(u'{\n') out(u'#ifdef __cplusplus\n') for method in self.methods: types = [declspec(p, "", prefix) for p in method.get_arguments()] if type(method) is Destructor: out(f' virtual ~{prefix}{self.full_name}( {", ".join(types)} ) = 0;\n') else: method_name = f'{declspec(method.result_type, "", prefix)} {method.spelling}' out(f' virtual {method_name}( {", ".join(types)} ) = 0;\n') out(u'#endif /* __cplusplus */\n') out(u'};\n\n') def get_children(self): return self._cursor.get_children() def Record(sdkver, abi, cursor): if cursor.type.get_declaration().kind == CursorKind.UNION_DECL: return Union(sdkver, abi, cursor) method_kinds = (CursorKind.CXX_METHOD, CursorKind.DESTRUCTOR) is_method = lambda c: c.kind in method_kinds and c.is_virtual_method() for _ in filter(is_method, cursor.get_children()): return Class(sdkver, abi, cursor) return Struct(sdkver, abi, cursor) def Type(decl, sdkver, abi): name = strip_ns(canonical_typename(decl)) if name not in all_structs: return BasicType(decl, abi) return all_structs[name][sdkver][abi] def display_sdkver(s): if s.startswith("v"): s = s[1:] return s.replace(".", "") def strip_ns(name): return name.replace("vr::","") def underlying_type(decl): if type(decl) is Cursor: decl = decl.type decl = decl.get_canonical() if decl.kind == TypeKind.LVALUEREFERENCE: return underlying_type(decl.get_pointee()) if decl.kind == TypeKind.CONSTANTARRAY: return underlying_type(decl.element_type) if decl.kind == TypeKind.POINTER: return underlying_type(decl.get_pointee()) return decl def param_needs_conversion(decl): decl = underlying_type(decl) return decl.kind == TypeKind.RECORD and \ struct_needs_conversion(decl) def callconv(cursor, prefix): if type(cursor) is not Cursor: return '' canon = cursor.type.get_canonical() if canon.kind != TypeKind.POINTER: return '' canon = canon.get_pointee() if canon.kind != TypeKind.FUNCTIONPROTO: return '' if cursor.type.kind == TypeKind.TYPEDEF: cursor = cursor.type.get_declaration() tokens = cursor.get_tokens() while next(tokens).spelling != '(': pass token = next(tokens).spelling.strip('_') token = token.replace('*', 'stdcall') token = token.replace('S_CALLTYPE', 'cdecl') return f'{prefix[0].upper()}_{token.upper()} ' def declspec_func(decl, name, prefix): ret = declspec(decl.get_result(), "", prefix, False) params = [declspec(a, "", prefix, False) for a in decl.argument_types()] params = ", ".join(params) if len(params) else "void" return f'{ret} ({name})({params})' def declspec(decl, name, prefix, wrapped=False): call = callconv(decl, prefix) if type(decl) is Cursor: decl = decl.type decl = decl.get_canonical() const = 'const ' if decl.is_const_qualified() else '' if decl.kind == TypeKind.FUNCTIONPROTO: return declspec_func(decl, name, prefix) if decl.kind in (TypeKind.POINTER, TypeKind.LVALUEREFERENCE): decl = decl.get_pointee() spec = declspec(decl, f"*{call}{const}{name}", prefix, False) if wrapped: return f'{prefix.upper()}PTR({spec}, {name})' return spec if decl.kind == TypeKind.CONSTANTARRAY: decl, count = decl.element_type, decl.element_count if wrapped: spec = declspec(decl, const, prefix, False) return f'{prefix.upper()}ARRAY({spec}, {count}, {name})' return declspec(decl, f"({const}{name})[{count}]", prefix, False) if len(name): name = f' {name}' if decl.kind in (TypeKind.UNEXPOSED, TypeKind.FUNCTIONPROTO): return f'void{name}' if decl.kind == TypeKind.ENUM: return f'uint{decl.get_size() * 8}_t{name}' type_name = decl.spelling type_name = type_name.removeprefix("const ") type_name = type_name.removeprefix("vr::") if type_name.startswith(('IVR', 'ID3D')): return f'{const}void /*{type_name}*/{name}' if decl.kind == TypeKind.RECORD \ and type_name in all_versions[sdkver] \ and type_name not in EXEMPT_STRUCTS: if type_name in unique_structs: return f'{const}{all_versions[sdkver][type_name]}{name}' return f'{const}{prefix}{all_versions[sdkver][type_name]}{name}' real_name = canonical_typename(decl) real_name = real_name.removeprefix("const ") real_name = real_name.removeprefix("vr::") if type_name in ('void', 'bool', 'char', 'float', 'double'): return f'{const}{type_name}{name}' if type_name.startswith(('int', 'long', 'short', 'signed')): return f'{const}int{decl.get_size() * 8}_t{name}' if type_name.startswith(('uint', 'unsigned')): return f'{const}uint{decl.get_size() * 8}_t{name}' return f'{const}{type_name}{name}' def handle_method_hpp(method, cppname, out): returns_record = method.result_type.get_canonical().kind == TypeKind.RECORD ret = "*_ret" if returns_record else "_ret" ret = f'{declspec(method.result_type, ret, "w_")}' names = [p.spelling if p.spelling != "" else f'_{chr(0x61 + i)}' for i, p in enumerate(method.get_arguments())] params = [declspec(p, names[i], "w_") for i, p in enumerate(method.get_arguments())] if method.result_type.kind != TypeKind.VOID: params = [ret] + params params = ['void *linux_side'] + params out(f'struct {cppname}_{method.name}_params\n') out(u'{\n') for param in params: out(f' {param};\n') out(u'};\n') out(f'extern void {cppname}_{method.name}( struct {cppname}_{method.name}_params *params );\n\n') def handle_method_cpp(method, classname, cppname, out): returns_void = method.result_type.kind == TypeKind.VOID returns_record = method.result_type.get_canonical().kind == TypeKind.RECORD names = [p.spelling if p.spelling != "" else f'_{chr(0x61 + i)}' for i, p in enumerate(method.get_arguments())] need_convert = {n: p for n, p in zip(names, method.get_arguments()) if param_needs_conversion(p)} names = ['linux_side'] + names out(f'void {cppname}_{method.name}( struct {cppname}_{method.name}_params *params )\n') out(u'{\n') out(f' struct u_{klass.full_name} *iface = (struct u_{klass.full_name} *)params->linux_side;\n') params = list(zip(names[1:], method.get_arguments())) for i, (name, param) in enumerate(params[:-1]): if underlying_type(param).kind != TypeKind.RECORD: continue next_name, next_param = params[i + 1] if not any(w in next_name.lower() for w in ('count', 'len', 'size', 'num')): continue assert strip_ns(underlying_typename(param)) in SIZED_STRUCTS | EXEMPT_STRUCTS for i, (name, param) in enumerate(params[1:]): if underlying_type(param).kind != TypeKind.RECORD: continue prev_name, prev_param = params[i - 1] if not any(w in prev_name.lower() for w in ('count', 'len', 'size', 'num')): continue if strip_ns(underlying_typename(param)) not in SIZED_STRUCTS | EXEMPT_STRUCTS: print('Warning:', strip_ns(underlying_typename(param)), name, 'following', prev_name) need_output = {} for name, param in sorted(need_convert.items()): if param.type.kind != TypeKind.POINTER: out(f' {declspec(param, f"u_{name}", "u_")} = params->{name};\n') continue pointee = param.type.get_pointee() if pointee.kind == TypeKind.POINTER: need_output[name] = param out(f' {declspec(pointee, f"u_{name}", "u_")};\n') continue if not pointee.is_const_qualified(): need_output[name] = param out(f' {declspec(pointee, f"u_{name}", "u_").removeprefix("const ")};\n') out(f' if (params->{name}) u_{name} = *params->{name};\n') size_fixup = {} size_param = {} size_fixup = {} params = list(zip(names[1:], method.get_arguments())) params += [(None, None)] # for next_name, next_param for i, (name, param) in enumerate(params[:-1]): real_type = underlying_type(param) if strip_ns(real_type.spelling) not in STRUCTS_NEXT_IS_SIZE: continue next_name, next_param = params[i + 1] if not next_param or next_param.type.spelling != "uint32_t": size_param[name] = ', -1' elif struct_needs_size_adjustment(real_type.get_canonical()): real_name = real_type.spelling out(f' uint32_t u_{next_name} = std::min( params->{next_name}, (uint32_t)sizeof({real_name}) );\n') size_param[name] = f', params->{next_name}' size_fixup[next_name] = True elif name in need_convert: assert name not in STRUCTS_NEXT_IS_SIZE_UNHANDLED out(f' uint32_t u_{next_name} = params->{next_name} ? sizeof(u_{name}) : 0;\n') size_param[name] = f', params->{next_name}' size_fixup[next_name] = True if returns_void: out(u' ') elif returns_record: out(u' *params->_ret = ') else: out(f' params->_ret = ({declspec(method.result_type, "", "w_")})') # FIXME def param_call(name, param): pfx = '&' if param.type.kind == TypeKind.POINTER else '' if name in size_fixup: return f"u_{name}" if name in need_convert: return f"params->{name} ? {pfx}u_{name} : nullptr" return f'params->{name}' params = [param_call(n, p) for n, p in zip(names[1:], method.get_arguments())] out(f'iface->{method.spelling}( {", ".join(params)} );\n') for name, param in sorted(need_output.items()): out(f' if (params->{name}) *params->{name} = u_{name};\n') out(u'}\n\n') def handle_thiscall_wrapper(klass, method, out): returns_record = method.result_type.get_canonical().kind == TypeKind.RECORD def param_stack_size(param): if param.type.kind == TypeKind.LVALUEREFERENCE: return 4 return ((param.type.get_size() + 3) // 4) * 4 size = 4 + sum(param_stack_size(p) for p in method.get_arguments()) if returns_record: size += 4 name = f'win{klass.full_name}_{method.name}' out(f'DEFINE_THISCALL_WRAPPER({name}, {size})\n') def handle_method_c(klass, method, winclassname, cppname, out): returns_void = method.result_type.kind == TypeKind.VOID returns_record = method.result_type.get_canonical().kind == TypeKind.RECORD ret = "*" if returns_record else "" ret = f'{declspec(method.result_type, ret, "w_")} ' names = [p.spelling if p.spelling != "" else f'_{chr(0x61 + i)}' for i, p in enumerate(method.get_arguments())] params = [declspec(p, names[i], "w_") for i, p in enumerate(method.get_arguments())] if returns_record: params = [f'{declspec(method.result_type, "*_ret", "w_")}'] + params names = ['_ret'] + names params = ['struct w_steam_iface *_this'] + params names = ['_this'] + names if is_manual_method(klass, method, 'w'): out(f'extern {ret}__thiscall {winclassname}_{method.name}({", ".join(params)});\n\n') return out(f'{ret}__thiscall {winclassname}_{method.name}({", ".join(params)})\n') out(u'{\n') out(f' struct {cppname}_{method.name}_params params =\n') out(u' {\n') out(u' .linux_side = _this->u_iface,\n') for name in names[1:]: out(f' .{name} = {name},\n') out(u' };\n') path_conv_utow = PATH_CONV_METHODS_UTOW.get(f'{klass.name}_{method.spelling}', {}) path_conv_wtou = PATH_CONV_METHODS_WTOU.get(f'{klass.name}_{method.spelling}', {}) for name in filter(lambda x: x in names, sorted(path_conv_wtou)): out(f' params.{name} = vrclient_dos_to_unix_path( {name} );\n') out(u' TRACE("%p\\n", _this);\n') if 'eTextureType' in names: out(u' if (eTextureType == TextureType_DirectX) FIXME( "Not implemented Direct3D API!\\n" );\n') out(f' {cppname}_{method.name}( ¶ms );\n') for name, conv in filter(lambda x: x[0] in names, path_conv_utow.items()): out(u' ') if "ret_size" in path_conv_utow: out(u'params._ret = ') out(f'vrclient_unix_path_to_dos_path( params._ret, {name}, {name}, {conv["len"]} );\n') for name in filter(lambda x: x in names, sorted(path_conv_wtou)): out(f' vrclient_free_path( params.{name} );\n') if not returns_void: out(u' return params._ret;\n') out(u'}\n\n') max_c_api_param_count = 0 def get_capi_thunk_params(method): def toBOOL(x): return "TRUE" if x else "FALSE" returns_record = method.result_type.get_canonical().kind == TypeKind.RECORD param_types = [x.type for x in method.get_arguments()] if returns_record: param_types.insert(0, method.result_type) param_count = len(param_types) has_float_params = any(x.spelling == "float" for x in param_types) is_4th_float = param_count >= 4 and param_types[3].spelling == "float" return "%s, %s, %s" % (param_count, toBOOL(has_float_params), toBOOL(is_4th_float)) def handle_class(klass): cppname = f"cpp{klass.full_name}" ext = "cpp" for method in klass.methods: if type(method) is Destructor: continue if is_manual_method(klass, method, "u"): ext = "hpp" with open(f"vrclient_x64/{cppname}.h", "w") as file: out = file.write out(u'/* This file is auto-generated, do not edit. */\n') out(u'#include \n') out(u'#include \n') out(u'#include \n') out(u'\n') out(u'#ifdef __cplusplus\n') out(u'extern "C" {\n') out(u'#endif /* __cplusplus */\n') out(u'\n') for method in klass.methods: if type(method) is Destructor: continue handle_method_hpp(method, cppname, out) out(u'#ifdef __cplusplus\n') out(u'} /* extern "C" */\n') out(u'#endif /* __cplusplus */\n') with open(f"vrclient_x64/{cppname}.{ext}", "w") as file: out = file.write out(u'/* This file is auto-generated, do not edit. */\n') out(u'#include "unix_private.h"\n') out(f'#include "{cppname}.h"\n') klass.write_definition(out, "u_") for method in klass.methods: if type(method) is Destructor: continue if is_manual_method(klass, method, "u"): continue handle_method_cpp(method, klass.name, cppname, out) winclassname = f'win{klass.full_name}' with open(f'vrclient_x64/win{klass.name}.c', 'a') as file: out = file.write out(f'#include "{cppname}.h"\n\n') for method in klass.methods: handle_thiscall_wrapper(klass, method, out) out('\n') for method in klass.methods: if type(method) is Destructor: continue handle_method_c(klass, method, winclassname, cppname, out) out(f'extern vtable_ptr {winclassname}_vtable;\n\n') out(u'#ifndef __GNUC__\n') out(u'void __asm_dummy_vtables(void) {\n') out(u'#endif\n') out(f' __ASM_VTABLE({winclassname},\n') for method in sorted(klass.methods, key=lambda x: (x._index, -x._override)): out(f' VTABLE_ADD_FUNC({winclassname}_{method.name})\n') out(u' );\n') out(u'#ifndef __GNUC__\n') out(u'}\n') out(u'#endif\n\n') out(f'struct w_steam_iface *create_{winclassname}(void *u_iface)\n') out(u'{\n') out(u' struct w_steam_iface *r = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*r));\n') out(u' TRACE("-> %p\\n", r);\n') out(f' r->vtable = &{winclassname}_vtable;\n') out(u' r->u_iface = u_iface;\n') out(u' return r;\n') out(u'}\n\n') out(f'void destroy_{winclassname}(struct w_steam_iface *object)\n') out(u'{\n') out(u' TRACE("%p\\n", object);\n') out(u' HeapFree(GetProcessHeap(), 0, object);\n') out(u'}\n\n') # flat (FnTable) API out(f'struct w_steam_iface *create_{winclassname}_FnTable(void *u_iface)\n') out(u'{\n') out(u' struct w_steam_iface *r = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*r));\n') out(f' struct thunk *thunks = alloc_thunks({len(klass.methods)});\n') out(f' struct thunk **vtable = HeapAlloc(GetProcessHeap(), 0, {len(klass.methods)} * sizeof(*vtable));\n') out(u' int i;\n\n') out(u' TRACE("-> %p, vtable %p, thunks %p\\n", r, vtable, thunks);\n') for i, method in enumerate(klass.methods): thunk_params = get_capi_thunk_params(method) arguments = list(method.get_arguments()) global max_c_api_param_count max_c_api_param_count = max(len(arguments), max_c_api_param_count) out(f' init_thunk(&thunks[{i}], r, {winclassname}_{method.name}, {thunk_params});\n') out(f' for (i = 0; i < {len(klass.methods)}; i++)\n') out(u' vtable[i] = &thunks[i];\n') out(u' r->u_iface = u_iface;\n') out(u' r->vtable = (void *)vtable;\n') out(u' return r;\n') out(u'}\n\n') out(f'void destroy_{winclassname}_FnTable(struct w_steam_iface *object)\n') out(u'{\n') out(u' TRACE("%p\\n", object);\n') out(u' VirtualFree(object->vtable[0], 0, MEM_RELEASE);\n') out(u' HeapFree(GetProcessHeap(), 0, object->vtable);\n') out(u' HeapFree(GetProcessHeap(), 0, object);\n') out(u'}\n\n') constructors = open("vrclient_x64/win_constructors.h", "a") constructors.write(f'extern struct w_steam_iface *create_{winclassname}(void *);\n') constructors.write(f'extern struct w_steam_iface *create_{winclassname}_FnTable(void *);\n') destructors = open("vrclient_x64/win_destructors.h", "a") destructors.write(f'extern void destroy_{winclassname}(struct w_steam_iface *);\n') destructors.write(f'extern void destroy_{winclassname}_FnTable(struct w_steam_iface *);\n') constructors = open("vrclient_x64/win_constructors_table.dat", "a") constructors.write(f" {{\"{klass.version}\", &create_{winclassname}, &destroy_{winclassname}}},\n") constructors.write(f" {{\"FnTable:{klass.version}\", &create_{winclassname}_FnTable, &destroy_{winclassname}_FnTable}},\n") def canonical_typename(cursor): if type(cursor) in (Cursor, Struct): return canonical_typename(cursor.type) name = cursor.get_canonical().spelling return name.removeprefix("const ") def underlying_typename(decl): return canonical_typename(underlying_type(decl)) def find_struct_abis(name): name = strip_ns(name) if not name in all_structs: return None structs = all_structs[name] if not sdkver in structs: return None return structs[sdkver] def struct_needs_conversion(struct): name = canonical_typename(struct) abis = find_struct_abis(name) if abis is None: return False if abis['w32'].needs_conversion(abis['u32']): return True if abis['w64'].needs_conversion(abis['u64']): return True assert abis['u32'].size <= abis['w32'].size if abis['u32'].size < abis['w32'].size: return False assert abis['u64'].size <= abis['w64'].size if abis['u64'].size < abis['w64'].size: return False return False def struct_needs_size_adjustment(struct): name = canonical_typename(struct) if name in EXEMPT_STRUCTS: return False abis = find_struct_abis(name) if abis is None: return False if abis['w32'].needs_conversion(abis['u32']): return False if abis['w64'].needs_conversion(abis['u64']): return False assert abis['u32'].size <= abis['w32'].size if abis['u32'].size < abis['w32'].size: return True assert abis['u64'].size <= abis['w64'].size if abis['u64'].size < abis['w64'].size: return True return False def get_field_attribute_str(field): ftype = field.type.get_canonical() if ftype.kind != TypeKind.RECORD: return "" name = canonical_typename(ftype) abis = find_struct_abis(name) if not abis: return " __attribute__((aligned(8)))" return f" __attribute__((aligned({abis['w32'].align})))" def generate_x64_call_flat_method(cfile, param_count, has_floats, is_4th_float): assert param_count >= 4 if is_4th_float: assert has_floats def l(line): cfile.write(line + '\n') stack_space = 0x20 # shadow register space stack_space += 0x8 * (param_count - 3) stack_space |= 0x8 src_offset = 0x20 + 0x8 + stack_space # shadow register space + ret dst_offset = 0x20 name = "call_flat_method%s%s%s" % (param_count, "_f" if has_floats else "", "_f" if is_4th_float else "") l(r"__ASM_GLOBAL_FUNC(%s," % name) l(r' "subq $0x%x, %%rsp\n\t"' % stack_space); l(r' __ASM_CFI(".cfi_adjust_cfa_offset %d\n\t")' % stack_space) if is_4th_float: l(r' "movq %%xmm3, 0x%x(%%rsp)\n\t"' % dst_offset) else: l(r' "movq %%r9, 0x%x(%%rsp)\n\t"' % dst_offset) dst_offset += 8 for i in range(5, param_count + 1): l(r' "movq 0x%x(%%rsp), %%rax\n\t" // copy parameter' % src_offset) l(r' "movq %%rax, 0x%x(%%rsp)\n\t"' % dst_offset) src_offset += 8 dst_offset += 8 l(r' "movq %r8, %r9\n\t" // shift over arguments') l(r' "movq %rdx, %r8\n\t"') l(r' "movq %rcx, %rdx\n\t"') l(r' "movq %r10, %rcx\n\t" // add This pointer') if has_floats: l(r' "movaps %xmm2, %xmm3\n\t"') l(r' "movaps %xmm1, %xmm2\n\t"') l(r' "movaps %xmm0, %xmm1\n\t"') l(r' "call *%r11\n\t"') l(r' "addq $0x%x, %%rsp\n\t"' % stack_space); l(r' __ASM_CFI(".cfi_adjust_cfa_offset -%d\n\t")' % stack_space) l(r' "ret");') l(r'extern void %s(void);' % name); def generate_flatapi_c(): with open("vrclient_x64/flatapi.c", "w") as f: f.write(r"""/* This file is auto-generated, do not edit. */ #include #include "windef.h" #include "winbase.h" #include "cxx.h" #include "flatapi.h" #ifdef __i386__ __ASM_GLOBAL_FUNC(call_flat_method, "popl %eax\n\t" "pushl %ecx\n\t" "pushl %eax\n\t" "jmp *%edx"); #else // handles "this" and up to 3 parameters __ASM_GLOBAL_FUNC(call_flat_method, "movq %r8, %r9\n\t" // shift over arguments "movq %rdx, %r8\n\t" "movq %rcx, %rdx\n\t" "movq %r10, %rcx\n\t" // add This pointer "jmp *%r11"); extern void call_flat_method(void); __ASM_GLOBAL_FUNC(call_flat_method_f, "movq %r8, %r9\n\t" // shift over arguments "movq %rdx, %r8\n\t" "movq %rcx, %rdx\n\t" "movq %r10, %rcx\n\t" // add This pointer "movaps %xmm2, %xmm3\n\t" "movaps %xmm1, %xmm2\n\t" "movaps %xmm0, %xmm1\n\t" "jmp *%r11"); extern void call_flat_method_f(void); """) for i in range(4, max_c_api_param_count + 1): f.write("\n") generate_x64_call_flat_method(f, i, False, False) for i in range(4, max_c_api_param_count + 1): f.write("\n") generate_x64_call_flat_method(f, i, True, False) f.write("\n") generate_x64_call_flat_method(f, i, True, True) f.write('\npfn_call_flat_method\n') f.write('get_call_flat_method_pfn( int param_count, BOOL has_floats, BOOL is_4th_float )\n{\n') f.write(' if (!has_floats)\n') f.write(' {\n') f.write(' if (param_count <= 3) return call_flat_method;\n') for i in range(4, max_c_api_param_count): f.write(' if (param_count == %s) return call_flat_method%s;\n' % (i, i)) f.write(' return call_flat_method%s;\n' % max_c_api_param_count) f.write(' }\n') f.write(' if (is_4th_float)\n') f.write(' {\n') f.write(' if (param_count <= 3) return call_flat_method_f;\n') for i in range(4, max_c_api_param_count): f.write(' if (param_count == %s) return call_flat_method%s_f_f;\n' % (i, i)) f.write(' return call_flat_method%s_f_f;\n' % max_c_api_param_count) f.write(' }\n') f.write(' if (param_count <= 3) return call_flat_method_f;\n') for i in range(4, max_c_api_param_count): f.write(' if (param_count == %s) return call_flat_method%s_f;\n' % (i, i)) f.write(' return call_flat_method%s_f;\n' % max_c_api_param_count) f.write('}\n') f.write("#endif\n") def enumerate_structs(cursor, vr_only=False): for child in cursor.get_children(): if child.kind == CursorKind.NAMESPACE \ and child.displayname == "vr": yield from child.get_children() elif not vr_only: yield child def parse(sources, sdkver, abi): args = [f'-m{abi[1:]}', '-I' + CLANG_PATH + '/include/'] if abi[0] == 'w': args += ["-D_WIN32", "-U__linux__"] args += ["-fms-extensions", "-mms-bitfields"] args += ["-Wno-ignored-attributes", "-Wno-incompatible-ms-struct"] if abi[0] == 'u': args += ["-DGNUC"] index = Index.create() build = index.parse("source.cpp", args=args, unsaved_files=sources.items()) diagnostics = list(build.diagnostics) for diag in diagnostics: print(diag) assert len(diagnostics) == 0 return sdkver, abi, build def load(sdkver): prog = re.compile("^.*const\s*char.* \*?(\w*)_Version.*\"(.*)\"") sdkdir = f'openvr_{sdkver}' sources = {} versions = {} has_vrclientcore = False for file in os.listdir(sdkdir): x = open(f"{sdkdir}/{file}", "r") if file == "ivrclientcore.h": has_vrclientcore = True for l in x: if "_Version" in l: result = prog.match(l) if result: iface, version = result.group(1, 2) versions[iface] = version if not has_vrclientcore: source = [f'#include "{sdkdir}/openvr.h"'] else: source = [f'#include "{sdkdir}/{file}"' for file in SDK_SOURCES.keys()] sources["source.cpp"] = "\n".join(source) return versions, sources def classify_struct(name): if name in EXEMPT_STRUCTS: return None structs = all_structs[name] prev = [] versions = {} unique = True for sdkver in filter(lambda v: v in structs, reversed(SDK_VERSIONS)): abis = [structs[sdkver][a] for a in ABIS] if any(abis[0].needs_conversion(a) for a in abis[1:]): unique = False def is_always_compatible(other): for a, b in zip(abis, other): if a.needs_conversion(b): return False return True compat = next((k for k, v in prev if is_always_compatible(v)), None) if compat: versions[sdkver] = versions[compat] else: [abi.set_used() for abi in abis] # make sure order is computed versions[sdkver] = f"{name}_{display_sdkver(sdkver)}" prev += [(sdkver, abis)] if unique: unique_structs.append(name) if len(set(versions.values())) == 1: versions = {sdkver: name for sdkver in versions.keys()} return versions for i, sdkver in enumerate(SDK_VERSIONS): print(f'loading SDKs... {i * 100 // len(SDK_VERSIONS)}%', end='\r') all_versions[sdkver], all_sources[sdkver] = load(sdkver) print(u'loading SDKs... 100%') tmp_classes = {} with concurrent.futures.ThreadPoolExecutor() as executor: arg0 = [sdkver for sdkver in SDK_VERSIONS for abi in ABIS] arg1 = [abi for sdkver in SDK_VERSIONS for abi in ABIS] def parse_map(sdkver, abi): return parse(all_sources[sdkver], sdkver, abi) results = executor.map(parse_map, arg0, arg1) for i, result in enumerate(results): print(f'parsing SDKs... {i * 100 // len(arg0)}%', end='\r') sdkver, abi, build = result if sdkver not in all_records: all_records[sdkver] = {} if sdkver not in tmp_classes: tmp_classes[sdkver] = {} versions = all_versions[sdkver] structs = enumerate_structs(build.cursor, vr_only=True) structs = filter(lambda c: c.is_definition(), structs) structs = filter(lambda c: c.type.get_canonical().kind == TypeKind.RECORD, structs) structs = filter(lambda c: c.kind != CursorKind.TYPEDEF_DECL, structs) structs = filter(lambda c: c.spelling not in SDK_CLASSES, structs) structs = [Record(sdkver, abi, c) for c in structs] structs = {c.name: c for c in structs} classes = enumerate_structs(build.cursor, vr_only=True) classes = filter(lambda c: c.is_definition(), classes) classes = filter(lambda c: c.kind == CursorKind.CLASS_DECL, classes) classes = filter(lambda c: c.spelling in SDK_CLASSES, classes) classes = filter(lambda c: c.spelling in versions, classes) classes = [Class(sdkver, abi, c) for c in classes] classes = {c.version: c for c in classes} all_records[sdkver][abi] = structs tmp_classes[sdkver][abi] = classes for name, struct in structs.items(): if name not in all_structs: all_structs[name] = {} if sdkver not in all_structs[name]: all_structs[name][sdkver] = {} all_structs[name][sdkver][abi] = struct for i, sdkver in enumerate(reversed(SDK_VERSIONS)): all_classes.update(tmp_classes[sdkver]['u32']) print('parsing SDKs... 100%') tmp_structs = {} for i, name in enumerate(all_structs.keys()): print(f'classifying structs... {i * 100 // len(all_structs.keys())}%', end='\r') versions = classify_struct(name) for sdkver in SDK_VERSIONS: if not versions or sdkver not in versions: continue all_versions[sdkver][name] = versions[sdkver] def struct_order(x): name, structs = x if type(x) is tuple else (x, all_structs[x]) order = (struct.order for abis in structs.values() for struct in abis.values()) return (min(order), name) for name, structs in sorted(all_structs.items(), key=struct_order): tmp_structs[name] = {} for sdkver in filter(lambda v: v in structs, SDK_VERSIONS): tmp_structs[name][sdkver] = {a: structs[sdkver][a] for a in ABIS} all_structs = tmp_structs print('classifying structs... 100%') for klass in all_classes.values(): with open(f"vrclient_x64/win{klass.name}.c", "w") as file: out = file.write out(u'/* This file is auto-generated, do not edit. */\n') out(u'#include \n') out(u'#include \n') out(u'\n') out(u'#include "vrclient_private.h"\n') out(u'\n') out(u'#include "flatapi.h"\n') out(u'\n') out(u'WINE_DEFAULT_DEBUG_CHANNEL(vrclient);\n') out(u'\n') for _, klass in sorted(all_classes.items()): sdkver = klass._sdkver handle_class(klass) generate_flatapi_c() declared = {} with open('vrclient_x64/vrclient_structs_generated.h', 'w') as file: out = file.write for name in sorted(unique_structs, key=struct_order): if name in EXEMPT_STRUCTS: continue for sdkver, abis in all_structs[name].items(): if name not in all_versions[sdkver]: continue version = all_versions[sdkver][name] if f'struct {version}' in declared: continue declared[f'struct {version}'] = True kind = 'union' if type(abis['w64']) is Union else 'struct' out(f'typedef {kind} {version} {version};\n') abis['w64'].write_definition(out, "", []) for name, structs in all_structs.items(): if name in EXEMPT_STRUCTS: continue if name in unique_structs: continue for sdkver, abis in structs.items(): if name not in all_versions[sdkver]: continue version = all_versions[sdkver][name] if f'typedef {version}' in declared: continue declared[f'typedef {version}'] = True kind = 'union' if type(abis['w64']) is Union else 'struct' if type(abis['w64']) is Class: out(f'typedef {kind} u_{version} u_{version};\n') out(f'typedef {kind} u_{version} u64_{version};\n') out(f'typedef {kind} u_{version} u32_{version};\n') out(f'typedef {kind} w_{version} w_{version};\n') out(f'typedef {kind} w_{version} w64_{version};\n') out(f'typedef {kind} w_{version} w32_{version};\n') continue if abis["w64"].needs_conversion(abis["u64"]): out(f'typedef {kind} u64_{version} u64_{version};\n') else: out(f'typedef {kind} w64_{version} u64_{version};\n') out(f'typedef {kind} w64_{version} w64_{version};\n') if abis["w32"].needs_conversion(abis["u32"]): out(f'typedef {kind} u32_{version} u32_{version};\n') else: out(f'typedef {kind} w32_{version} u32_{version};\n') out(f'typedef {kind} w32_{version} w32_{version};\n') for name, structs in all_structs.items(): if name in EXEMPT_STRUCTS: continue if name in unique_structs: continue for sdkver, abis in structs.items(): if name not in all_versions[sdkver]: continue version = all_versions[sdkver][name] if f'struct {version}' in declared: continue declared[f'struct {version}'] = True kind = 'union' if type(abis['w64']) is Union else 'struct' if type(abis['w64']) is Class: abis['w64'].write_definition(out, "w_") abis['u64'].write_definition(out, "u_") continue if not abis["w64"].needs_conversion(abis["u64"]): abis['w64'].write_definition(out, "w64_", []) else: abis['w64'].write_definition(out, "w64_", ["u64_"]) abis['u64'].write_definition(out, "u64_", ["w64_"]) if not abis["w32"].needs_conversion(abis["u32"]): abis['w32'].write_definition(out, "w32_", []) else: abis['w32'].write_definition(out, "w32_", ["u32_"]) abis['u32'].write_definition(out, "u32_", ["w32_"]) out(u'#ifdef __i386__\n') out(f'typedef w32_{version} w_{version};\n') out(f'typedef u32_{version} u_{version};\n') out(u'#endif\n') out(u'#ifdef __x86_64__\n') out(f'typedef w64_{version} w_{version};\n') out(f'typedef u64_{version} u_{version};\n') out(u'#endif\n') out(u'\n') with open('vrclient_x64/unixlib_generated.cpp', 'w') as file: out = file.write out(u'/* This file is auto-generated, do not edit. */\n\n') out(u'#include "unix_private.h"\n\n') for name in sorted(unique_structs, key=struct_order): for sdkver, abis in all_structs[name].items(): if name not in all_versions[sdkver]: continue version = all_versions[sdkver][name] if f'checks {version}' in declared: continue declared[f'checks {version}'] = True abis['w64'].write_checks(out, "") for name, structs in all_structs.items(): if name in EXEMPT_STRUCTS: continue if name in unique_structs: continue for sdkver, abis in structs.items(): if name not in all_versions[sdkver]: continue version = all_versions[sdkver][name] if f'checks {version}' in declared: continue declared[f'checks {version}'] = True if type(abis['w64']) is Class: continue abis['w64'].write_checks(out, "w64_") abis['u64'].write_checks(out, "u64_") abis['w32'].write_checks(out, "w32_") abis['u32'].write_checks(out, "u32_") for sdkver, abis in structs.items(): if name not in all_versions[sdkver]: continue version = all_versions[sdkver][name] if f'struct {version} convert' in declared: continue declared[f'struct {version} convert'] = True if type(abis['w64']) in (Class, Union): continue if abis["w64"].needs_conversion(abis["u64"]): out(u'#ifdef __x86_64__\n') abis['w64'].write_converter('u64_') out(u'\n') abis['u64'].write_converter('w64_') out(u'#endif\n\n') if abis["w32"].needs_conversion(abis["u32"]): out(u'#ifdef __i386__\n') abis['w32'].write_converter('u32_') out(u'\n') abis['u32'].write_converter('w32_') out(u'#endif\n\n')