Yucom/vrclient_x64/gen_wrapper.py
2018-07-30 18:04:25 +02:00

999 lines
40 KiB
Python
Executable file

#!/usr/bin/python2
#NOTE: If you make modifications here, consider whether they should
#be duplicated in ../lsteamclient/gen_wrapper.py
import pprint
import sys
import clang.cindex
import os
import re
sdk_versions = [
"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",
"v1.0.3",
"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",
]
files = [
("openvr.h",
[ #classes
"IVRApplications",
"IVRChaperone",
"IVRChaperoneSetup",
"IVRCompositor",
"IVRDriverManager",
"IVRExtendedDisplay",
"IVRNotifications",
"IVRInput",
"IVRIOBuffer",
"IVROverlay",
"IVRRenderModels",
"IVRResources",
"IVRScreenshots",
"IVRSettings",
"IVRSystem",
"IVRTrackedCamera",
], [ #user-allocated structs
"VRControllerState001_t",
"VREvent_t",
], [ #vrclient-allocated structs
"RenderModel_t",
"RenderModel_TextureMap_t",
]
),
("ivrclientcore.h",
[ #classes
"IVRClientCore",
], [ #user-allocated structs
], [ #vrclient-allocated structs
]
),
]
aliases = {
#Some interface versions are not present in the public SDK
#headers, but are actually requested by games. It would be nice
#to verify that these interface versions are actually binary
#compatible. Lacking that, we hope the next highest version
#is compatible.
# "SteamClient012":["SteamClient013"],
# "SteamUtils004":["SteamUtils003"], # TimeShift uses SteamUtils003
#leaving these commented-out. let's see if they turn up in practice,
#and handle them correctly if so.
# "SteamFriends011":["SteamFriends010"],
# "SteamFriends013":["SteamFriends012"],
# "SteamGameServer008":["SteamGameServer007", "SteamGameServer006"],
# "SteamMatchMaking004":["SteamMatchMaking003"],
# "SteamMatchMaking006":["SteamMatchMaking005"],
# "STEAMREMOTESTORAGE_INTERFACE_VERSION004":["STEAMREMOTESTORAGE_INTERFACE_VERSION003"],
# "STEAMREMOTESTORAGE_INTERFACE_VERSION008":["STEAMREMOTESTORAGE_INTERFACE_VERSION007"],
# "STEAMREMOTESTORAGE_INTERFACE_VERSION010":["STEAMREMOTESTORAGE_INTERFACE_VERSION009"],
# "STEAMUGC_INTERFACE_VERSION005":["STEAMUGC_INTERFACE_VERSION004"],
# "STEAMUGC_INTERFACE_VERSION007":["STEAMUGC_INTERFACE_VERSION006"],
# "SteamUser016":["SteamUser015"],
# "STEAMUSERSTATS_INTERFACE_VERSION009":["STEAMUSERSTATS_INTERFACE_VERSION008"],
}
# TODO: we could do this automatically by creating temp files and
# having clang parse those and detect when the MS-style padding results
# in identical struct widths. But there's only a couple, so let's cheat...
skip_structs = [
# "RemoteStorageGetPublishedFileDetailsResult_t_9740",
# "SteamUGCQueryCompleted_t_20",
# "SteamUGCRequestUGCDetailsResult_t_9764"
]
print_sizes = []
class_versions = {}
def get_params(f):
return [p for p in f.get_children() if p.kind == clang.cindex.CursorKind.PARM_DECL]
def ivrclientcore_init(cppname, method):
if "002" in cppname:
return "ivrclientcore_002_init"
return "ivrclientcore_init"
def ivrclientcore_get_generic_interface(cppname, method):
return "ivrclientcore_get_generic_interface"
def ivrclientcore_cleanup(cppname, method):
return "ivrclientcore_cleanup"
def ivrsystem_get_dxgi_output_info(cppname, method):
param_count = len(get_params(method))
return {
1: "get_dxgi_output_info",
2: "get_dxgi_output_info2"
}.get(param_count, "unhandled_get_dxgi_output_info_method")
def ivrsystem_get_output_device(cppname, method):
#introduced in 016, changed in 017
if "016" in cppname:
return "ivrsystem_016_get_output_device"
return "ivrsystem_get_output_device"
def ivrcompositor_submit(cppname, method):
if "005" in cppname:
return "ivrcompositor_005_submit"
if "006" in cppname:
return "ivrcompositor_006_submit"
if "007" in cppname:
return "ivrcompositor_007_submit"
if "008" in cppname:
return "ivrcompositor_008_submit"
return "ivrcompositor_submit"
def ivrcompositor_post_present_handoff(cppname, method):
return "ivrcompositor_post_present_handoff"
def ivrcompositor_wait_get_poses(cppname, method):
for version in ["016", "018", "019", "020", "021", "022"]:
if version in cppname:
return "ivrcompositor_wait_get_poses"
return None
def ivrcompositor_get_vulkan_device_extensions_required(cppname, method):
return "ivrcompositor_get_vulkan_device_extensions_required"
method_overrides = [
("IVRClientCore", "Init", ivrclientcore_init),
("IVRClientCore", "GetGenericInterface", ivrclientcore_get_generic_interface),
("IVRClientCore", "Cleanup", ivrclientcore_cleanup),
("IVRSystem", "GetDXGIOutputInfo", ivrsystem_get_dxgi_output_info),
("IVRSystem", "GetOutputDevice", ivrsystem_get_output_device),
("IVRCompositor", "Submit", ivrcompositor_submit),
("IVRCompositor", "PostPresentHandoff", ivrcompositor_post_present_handoff),
("IVRCompositor", "WaitGetPoses", ivrcompositor_wait_get_poses),
("IVRCompositor", "GetVulkanDeviceExtensionsRequired", ivrcompositor_get_vulkan_device_extensions_required),
]
method_overrides_data = [
("IVRClientCore", "struct client_core_data", None),
("IVRCompositor", "struct compositor_data", "destroy_compositor_data"),
]
def display_sdkver(s):
if s.startswith("v"):
s = s[1:]
return s.replace(".", "")
def strip_ns(name):
return name.replace("vr::","")
def handle_method(cfile, classname, winclassname, cppname, method, cpp, cpp_h, existing_methods, iface_version):
used_name = method.spelling
idx = '2'
while used_name in existing_methods:
used_name = "%s_%s" % (method.spelling, idx)
idx = chr(ord(idx) + 1)
returns_record = method.result_type.get_canonical().kind == clang.cindex.TypeKind.RECORD
if returns_record:
parambytes = 8 #_this + return pointer
else:
parambytes = 4 #_this
for param in get_params(method):
parambytes += param.type.get_size()
cfile.write("DEFINE_THISCALL_WRAPPER(%s_%s, %s)\n" % (winclassname, used_name, parambytes))
cpp_h.write("extern ")
if strip_ns(method.result_type.spelling).startswith("IVR"):
cfile.write("win%s " % (strip_ns(method.result_type.spelling)))
cpp.write("void *")
cpp_h.write("void *")
elif returns_record:
cfile.write("%s *" % strip_ns(method.result_type.spelling))
cpp.write("%s " % method.result_type.spelling)
cpp_h.write("%s " % strip_ns(method.result_type.spelling))
else:
cfile.write("%s " % strip_ns(method.result_type.spelling))
cpp.write("%s " % method.result_type.spelling)
cpp_h.write("%s " % strip_ns(method.result_type.spelling))
cfile.write('__thiscall %s_%s(%s *_this' % (winclassname, used_name, winclassname))
cpp.write("%s_%s(void *linux_side" % (cppname, used_name))
cpp_h.write("%s_%s(void *" % (cppname, used_name))
if returns_record:
cfile.write(", %s *_r" % strip_ns(method.result_type.spelling))
unnamed = 'a'
do_lin_to_win = None
do_wrap = None
do_unwrap = None
for param in get_params(method):
if param.type.kind == clang.cindex.TypeKind.POINTER and \
param.type.get_pointee().kind == clang.cindex.TypeKind.UNEXPOSED:
#unspecified function pointer
typename = "void *"
else:
typename = param.type.spelling.split("::")[-1].replace("&", "*");
if param.type.kind == clang.cindex.TypeKind.POINTER:
if strip_ns(param.type.get_pointee().get_canonical().spelling) in user_structs:
do_lin_to_win = (strip_ns(param.type.get_pointee().get_canonical().spelling), param.spelling)
typename = "win" + do_lin_to_win[0] + "_" + display_sdkver(sdkver) + " *"
elif strip_ns(param.type.get_pointee().get_canonical().spelling) in system_structs:
do_unwrap = (strip_ns(param.type.get_pointee().get_canonical().spelling), param.spelling)
typename = "win" + do_unwrap[0] + "_" + display_sdkver(sdkver) + " *"
elif param.type.get_pointee().kind == clang.cindex.TypeKind.POINTER and \
strip_ns(param.type.get_pointee().get_pointee().get_canonical().spelling) in system_structs:
do_wrap = (strip_ns(param.type.get_pointee().get_pointee().get_canonical().spelling), param.spelling)
typename = "win" + do_wrap[0] + "_" + display_sdkver(sdkver) + " **"
if param.spelling == "":
cfile.write(", %s _%s" % (typename, unnamed))
cpp.write(", %s _%s" % (typename, unnamed))
cpp_h.write(", %s" % typename)
unnamed = chr(ord(unnamed) + 1)
else:
cfile.write(", %s %s" % (typename, param.spelling))
cpp.write(", %s %s" % (typename, param.spelling))
cpp_h.write(", %s" % (typename))
cfile.write(")\n{\n")
cpp.write(")\n{\n")
cpp_h.write(");\n")
char_param_is_unix_path = "GetAppInstallDir" in used_name or \
"GetItemInstallInfo" in used_name
path_param_name = None
path_size_param_name = None
if char_param_is_unix_path:
cfile.write(" uint32 path_result;\n")
if do_lin_to_win:
cpp.write(" %s lin;\n" % do_lin_to_win[0])
cpp.write(" %s _ret;\n" % method.result_type.spelling)
if do_wrap:
cpp.write(" %s *lin;\n" % do_wrap[0])
cpp.write(" %s _ret;\n" % method.result_type.spelling)
cfile.write(" TRACE(\"%p\\n\", _this);\n")
if method.result_type.kind == clang.cindex.TypeKind.VOID:
cfile.write(" ")
cpp.write(" ")
elif char_param_is_unix_path:
cfile.write(" path_result = ")
cpp.write(" return ")
elif returns_record:
cfile.write(" *_r = ")
cpp.write(" return ")
elif do_lin_to_win:
cfile.write(" return ")
cpp.write(" _ret = ")
elif do_wrap:
cfile.write(" return ")
cpp.write(" _ret = ")
else:
cfile.write(" return ")
cpp.write(" return ")
should_gen_wrapper = strip_ns(method.result_type.spelling).startswith("IVR")
if should_gen_wrapper:
cfile.write("create_win_interface(pchNameAndVersion,\n ")
is_method_overridden = False
for classname_pattern, methodname, override_generator in method_overrides:
if used_name == methodname and classname_pattern in classname:
fn_name = override_generator(cppname, method)
if fn_name:
cfile.write("%s(%s_%s, _this->linux_side" % (fn_name, cppname, used_name))
is_method_overridden = True
break
else:
cfile.write("%s_%s(_this->linux_side" % (cppname, used_name))
cpp.write("((%s*)linux_side)->%s(" % (classname, method.spelling))
unnamed = 'a'
first = True
next_is_size = False
for param in get_params(method):
if not first:
cpp.write(", ")
else:
first = False
if char_param_is_unix_path:
if param.type.spelling == "char *":
path_param_name = param.spelling
elif not path_param_name is None and \
(param.type.spelling == "uint32" or
param.type.spelling == "int"):
path_size_param_name = param.spelling
if param.spelling == "":
cfile.write(", _%s" % unnamed)
cpp.write("(%s)_%s" % (param.type.spelling, unnamed))
unnamed = chr(ord(unnamed) + 1)
else:
cfile.write(", %s" % param.spelling)
if do_lin_to_win and do_lin_to_win[1] == param.spelling or \
do_wrap and do_wrap[1] == param.spelling:
cpp.write("&lin")
if do_lin_to_win and \
(do_lin_to_win[0] == "VREvent_t" or \
do_lin_to_win[0] == "VRControllerState001_t"):
next_is_size = True
elif do_unwrap and do_unwrap[1] == param.spelling:
cpp.write("struct_%s_%s_unwrap(%s)" % (strip_ns(do_unwrap[0]), display_sdkver(sdkver), do_unwrap[1]))
elif next_is_size:
next_is_size = False
if param.type.spelling == "uint32_t":
cpp.write("sizeof(lin)")
else:
cpp.write("(%s)%s" % (param.type.spelling, param.spelling))
elif "&" in param.type.spelling:
cpp.write("*%s" % param.spelling)
else:
cpp.write("(%s)%s" % (param.type.spelling, param.spelling))
if should_gen_wrapper:
cfile.write(")")
if is_method_overridden:
cfile.write(", %s" % iface_version[iface_version.find("_") + 1:].lstrip("0"))
for classname_pattern, user_data_type, _ in method_overrides_data:
if classname_pattern in classname:
cfile.write(", &_this->user_data")
break
cfile.write(");\n")
cpp.write(");\n")
if returns_record:
cfile.write(" return _r;\n")
if char_param_is_unix_path and not path_param_name is None and not path_size_param_name is None:
cfile.write(" return steamclient_unix_path_to_dos_path(path_result, %s, %s);\n" % (path_param_name, path_size_param_name))
if do_lin_to_win:
cpp.write(" struct_%s_%s_lin_to_win(&lin, %s);\n" % (strip_ns(do_lin_to_win[0]), display_sdkver(sdkver), do_lin_to_win[1]))
cpp.write(" return _ret;\n")
if do_wrap:
cpp.write(" if(_ret == 0)\n")
cpp.write(" *%s = struct_%s_%s_wrap(lin);\n" % (do_wrap[1], strip_ns(do_wrap[0]), display_sdkver(sdkver)))
cpp.write(" return _ret;\n")
cfile.write("}\n\n")
cpp.write("}\n\n")
return used_name
def get_iface_version(classname):
if classname in iface_versions.keys():
ver = iface_versions[classname]
else:
ver = "UNVERSIONED"
if classname in class_versions.keys() and ver in class_versions[classname]:
return (ver, True)
if not classname in class_versions.keys():
class_versions[classname] = []
class_versions[classname].append(ver)
return (ver, False)
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 == clang.cindex.TypeKind.RECORD
param_types = map(lambda x: x.type, get_params(method))
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(sdkver, classnode):
print("handle_class: " + classnode.displayname)
children = list(classnode.get_children())
if len(children) == 0:
return
(iface_version, already_generated) = get_iface_version(classnode.spelling)
if already_generated:
return
winname = "win%s" % classnode.spelling
cppname = "cpp%s_%s" % (classnode.spelling, iface_version)
file_exists = os.path.isfile("vrclient_x64/%s.c" % winname)
cfile = open("vrclient_x64/%s.c" % winname, "a")
if not file_exists:
cfile.write("""/* This file is auto-generated, do not edit. */
#include <stdarg.h>
#include <stdint.h>
#include "windef.h"
#include "winbase.h"
#include "wine/debug.h"
#include "cxx.h"
#include "vrclient_defs.h"
#include "vrclient_private.h"
#include "struct_converters.h"
#include "flatapi.h"
WINE_DEFAULT_DEBUG_CHANNEL(vrclient);
""")
cpp = open("vrclient_x64/%s.cpp" % cppname, "w")
cpp.write("#include \"vrclient_private.h\"\n")
cpp.write("#include \"vrclient_defs.h\"\n")
if os.path.isfile("openvr_%s/ivrclientcore.h" % sdkver):
cpp.write("#include \"openvr_%s/ivrclientcore.h\"\n" % sdkver)
else:
cpp.write("#include \"openvr_%s/openvr.h\"\n" % sdkver)
cpp.write("using namespace vr;\n")
cpp.write("extern \"C\" {\n")
cpp.write("#include \"struct_converters.h\"\n")
cpp.write("}\n")
cpp.write("#include \"%s.h\"\n" % cppname)
cpp.write("#ifdef __cplusplus\nextern \"C\" {\n#endif\n")
cpp_h = open("vrclient_x64/%s.h" % cppname, "w")
cpp_h.write("#ifdef __cplusplus\nextern \"C\" {\n#endif\n")
winclassname = "win%s_%s" % (classnode.spelling, iface_version)
cfile.write("#include \"%s.h\"\n\n" % cppname)
cfile.write("typedef struct __%s {\n" % winclassname)
cfile.write(" vtable_ptr *vtable;\n") # make sure to keep this first (flat API depends on it)
cfile.write(" void *linux_side;\n")
for classname_pattern, user_data_type, _ in method_overrides_data:
if classname_pattern in classnode.spelling:
cfile.write(" %s user_data;\n" % user_data_type)
break
cfile.write("} %s;\n\n" % winclassname)
methods = []
method_names = []
for child in children:
if child.kind == clang.cindex.CursorKind.CXX_METHOD:
method_names.append(handle_method(cfile, classnode.spelling, winclassname, cppname, child, cpp, cpp_h, method_names, iface_version))
methods.append(child)
cfile.write("extern vtable_ptr %s_vtable;\n\n" % winclassname)
cfile.write("#ifndef __GNUC__\n")
cfile.write("void __asm_dummy_vtables(void) {\n")
cfile.write("#endif\n")
cfile.write(" __ASM_VTABLE(%s,\n" % winclassname)
for method in method_names:
cfile.write(" VTABLE_ADD_FUNC(%s_%s)\n" % (winclassname, method))
cfile.write(" );\n")
cfile.write("#ifndef __GNUC__\n")
cfile.write("}\n")
cfile.write("#endif\n\n")
cfile.write("%s *create_%s(void *linux_side)\n{\n" % (winclassname, winclassname))
cfile.write(" %s *r = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(%s));\n" % (winclassname, winclassname))
cfile.write(" TRACE(\"-> %p\\n\", r);\n")
cfile.write(" r->vtable = &%s_vtable;\n" % winclassname)
cfile.write(" r->linux_side = linux_side;\n")
cfile.write(" return r;\n}\n\n")
cfile.write("void destroy_%s(void *object)\n{\n" % winclassname)
cfile.write(" TRACE(\"%p\\n\", object);\n")
for classname_pattern, user_data_type, user_data_destructor in method_overrides_data:
if user_data_destructor and classname_pattern in classnode.spelling:
cfile.write(" struct __%s *win_object = object;\n" % winclassname)
cfile.write(" %s(&win_object->user_data);\n" % user_data_destructor)
break
cfile.write(" HeapFree(GetProcessHeap(), 0, object);\n}\n\n")
# flat (FnTable) API
cfile.write("%s *create_%s_FnTable(void *linux_side)\n{\n" % (winclassname, winclassname))
cfile.write(" %s *r = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(%s));\n" % (winclassname, winclassname))
cfile.write(" struct thunk *thunks = alloc_thunks(%d);\n" % len(methods))
cfile.write(" struct thunk **vtable = HeapAlloc(GetProcessHeap(), 0, %d * sizeof(*vtable));\n" % len(methods))
cfile.write(" int i;\n\n")
cfile.write(" TRACE(\"-> %p, vtable %p, thunks %p\\n\", r, vtable, thunks);\n")
for i in range(len(methods)):
thunk_params = get_capi_thunk_params(methods[i])
global max_c_api_param_count
max_c_api_param_count = max(len(get_params(methods[i])), max_c_api_param_count)
cfile.write(" init_thunk(&thunks[%d], r, %s_%s, %s);\n" % (i, winclassname, method_names[i], thunk_params))
cfile.write(" for (i = 0; i < %d; i++)\n" % len(methods))
cfile.write(" vtable[i] = &thunks[i];\n")
cfile.write(" r->linux_side = linux_side;\n")
cfile.write(" r->vtable = (void *)vtable;\n")
cfile.write(" return r;\n}\n\n")
cfile.write("void destroy_%s_FnTable(void *object)\n{\n" % winclassname)
cfile.write(" %s *win_object = object;\n" % winclassname)
cfile.write(" TRACE(\"%p\\n\", win_object);\n")
for classname_pattern, user_data_type, user_data_destructor in method_overrides_data:
if user_data_destructor and classname_pattern in classnode.spelling:
cfile.write(" %s(&win_object->user_data);\n" % user_data_destructor)
break
cfile.write(" VirtualFree(win_object->vtable[0], 0, MEM_RELEASE);\n")
cfile.write(" HeapFree(GetProcessHeap(), 0, win_object->vtable);\n")
cfile.write(" HeapFree(GetProcessHeap(), 0, win_object);\n}\n\n")
cpp.write("#ifdef __cplusplus\n}\n#endif\n")
cpp_h.write("#ifdef __cplusplus\n}\n#endif\n")
constructors = open("vrclient_x64/win_constructors.h", "a")
constructors.write("extern void *create_%s(void *);\n" % winclassname)
constructors.write("extern void *create_%s_FnTable(void *);\n" % winclassname)
destructors = open("vrclient_x64/win_destructors.h", "a")
destructors.write("extern void destroy_%s(void *);\n" % winclassname)
destructors.write("extern void destroy_%s_FnTable(void *);\n" % winclassname)
constructors = open("vrclient_x64/win_constructors_table.dat", "a")
constructors.write(" {\"%s\", &create_%s, &destroy_%s},\n" % (iface_version, winclassname, winclassname))
constructors.write(" {\"FnTable:%s\", &create_%s_FnTable, &destroy_%s_FnTable},\n" % (iface_version, winclassname, winclassname))
if iface_version in aliases.keys():
for alias in aliases[iface_version]:
constructors.write(" {\"%s\", &create_%s}, /* alias */\n" % (alias, winclassname))
generate_c_api_thunk_tests(winclassname, methods, method_names)
generated_struct_handlers = []
cpp_files_need_close_brace = []
LIN_TO_WIN=1
WRAPPERS=2
#because of struct packing differences between win32 and linux, we
#need to convert these structs from their linux layout to the win32
#layout.
#TODO: could we optimize this by detecting if the structs are the
#same layout at generation-time?
def handle_struct(sdkver, struct, which):
handler_name = "%s_%s" % (struct.displayname, display_sdkver(sdkver))
if handler_name in generated_struct_handlers:
# we already have a handler for the struct struct of this size
return
filename_base = "struct_converters_%s" % display_sdkver(sdkver)
cppname = "vrclient_x64/%s.cpp" % filename_base
file_exists = os.path.isfile(cppname)
cppfile = open(cppname, "a")
if not file_exists:
cppfile.write("#include <stdlib.h>\n");
cppfile.write("#include <string.h>\n");
cppfile.write("#include \"vrclient_private.h\"\n")
cppfile.write("#include \"vrclient_defs.h\"\n")
cppfile.write("#include \"openvr_%s/openvr.h\"\n" % sdkver)
cppfile.write("using namespace vr;\n")
cppfile.write("extern \"C\" {\n")
cppfile.write("#include \"struct_converters.h\"\n")
cpp_files_need_close_brace.append(cppname)
hfile = open("vrclient_x64/struct_converters.h", "a")
hfile.write("typedef struct win%s win%s;\n" % (handler_name, handler_name))
cppfile.write("struct win%s {\n" % handler_name)
for m in struct.get_children():
if m.kind == clang.cindex.CursorKind.FIELD_DECL:
if m.type.kind == clang.cindex.TypeKind.CONSTANTARRAY:
cppfile.write(" %s %s[%u];\n" % (m.type.element_type.spelling, m.displayname, m.type.element_count))
else:
cppfile.write(" %s %s;\n" % (m.type.spelling, m.displayname))
if which == WRAPPERS:
cppfile.write("\n %s *linux_side;\n" % struct.displayname)
cppfile.write("} __attribute__ ((ms_struct));\n\n")
if which == LIN_TO_WIN:
hfile.write("extern void struct_%s_lin_to_win(void *l, void *w);\n" % handler_name)
cppfile.write("void struct_%s_lin_to_win(void *l, void *w)\n{\n" % handler_name)
cppfile.write(" struct win%s *win = (struct win%s *)w;\n" % (handler_name, handler_name))
elif which == WRAPPERS:
hfile.write("extern struct win%s *struct_%s_wrap(void *l);\n" % (handler_name, handler_name))
cppfile.write("struct win%s *struct_%s_wrap(void *l)\n{\n" % (handler_name, handler_name))
cppfile.write(" struct win%s *win = (struct win%s *)malloc(sizeof(*win));\n" % (handler_name, handler_name))
cppfile.write(" %s *lin = (%s *)l;\n" % (struct.displayname, struct.displayname))
for m in struct.get_children():
if m.kind == clang.cindex.CursorKind.FIELD_DECL:
if m.type.kind == clang.cindex.TypeKind.CONSTANTARRAY:
#TODO: if this is a struct, or packed differently, we'll have to
# copy each element in a for-loop
cppfile.write(" memcpy(win->%s, lin->%s, sizeof(win->%s));\n" % (m.displayname, m.displayname, m.displayname))
else:
cppfile.write(" win->%s = lin->%s;\n" % (m.displayname, m.displayname))
if which == WRAPPERS:
cppfile.write(" win->linux_side = lin;\n");
cppfile.write(" return win;\n")
cppfile.write("}\n\n")
if which == WRAPPERS:
hfile.write("extern %s *struct_%s_unwrap(win%s *w);\n" % (struct.displayname, handler_name, handler_name))
cppfile.write("struct %s *struct_%s_unwrap(win%s *w)\n{\n" % (struct.displayname, handler_name, handler_name))
cppfile.write(" %s *ret = w->linux_side;\n" % struct.displayname)
cppfile.write(" free(w);\n")
cppfile.write(" return ret;\n")
cppfile.write("}\n\n")
generated_struct_handlers.append(handler_name)
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);
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' "movq %xmm2, %xmm3\n\t"')
l(r' "movq %xmm1, %xmm2\n\t"')
l(r' "movq %xmm0, %xmm1\n\t"')
l(r' "call *%r11\n\t"')
l(r' "addq $0x%x, %%rsp\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 <stdarg.h>
#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
"movq %xmm2, %xmm3\n\t"
"movq %xmm1, %xmm2\n\t"
"movq %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 generate_c_api_method_test(f, header, thunks_c, class_name, method_name, method):
thunk_params = get_capi_thunk_params(method)
f.write("\n init_thunk(t, this_ptr_value, %s_%s, %s);\n" % (class_name, method_name, thunk_params))
f.write(" ")
header.write("\n")
thunks_c.write("\n")
returns_record = method.result_type.get_canonical().kind == clang.cindex.TypeKind.RECORD
if returns_record:
f.write("%s *" % strip_ns(method.result_type.spelling))
header.write("%s *" % strip_ns(method.result_type.spelling))
thunks_c.write("%s *" % strip_ns(method.result_type.spelling))
else:
f.write("%s " % strip_ns(method.result_type.spelling))
header.write("%s " % strip_ns(method.result_type.spelling))
thunks_c.write("%s " % strip_ns(method.result_type.spelling))
first_param = True
f.write('(__stdcall *capi_%s_%s)(' % (class_name, method_name))
header.write('__thiscall %s_%s(void *_this' % (class_name, method_name))
thunks_c.write('__thiscall %s_%s(void *_this' % (class_name, method_name))
if returns_record:
f.write("%s *_r" % strip_ns(method.result_type.spelling))
first_param = False
header.write(", %s *_r" % strip_ns(method.result_type.spelling))
thunks_c.write(", %s *_r" % strip_ns(method.result_type.spelling))
for param in get_params(method):
if param.type.kind == clang.cindex.TypeKind.POINTER \
and param.type.get_pointee().kind == clang.cindex.TypeKind.UNEXPOSED:
typename = "void *"
else:
typename = param.type.spelling.split("::")[-1].replace("&", "*");
if not first_param:
f.write(", ")
first_param = False
f.write("%s %s" % (typename, param.spelling))
header.write(", %s %s" % (typename, param.spelling))
thunks_c.write(", %s %s" % (typename, param.spelling))
f.write(") = (void *)t;\n")
header.write(");\n")
thunks_c.write(")\n{\n")
thunks_c.write(" push_ptr_parameter(_this);\n")
if returns_record:
thunks_c.write(" push_ptr_parameter(_r);\n")
for param in get_params(method):
param_size = param.type.get_size()
if param.type.kind == clang.cindex.TypeKind.POINTER \
or param.type.spelling.endswith("&") \
or param.type.spelling == "vr::glSharedTextureHandle_t":
typename = "ptr"
elif param.type.spelling == "bool":
typename = "bool"
elif param.type.spelling == "float":
typename = "float"
elif param.type.spelling == "vr::HmdRect2_t":
typename = "HmdRect2"
elif param.type.spelling == "vr::HmdVector2_t":
typename = "HmdVector2"
elif param.type.spelling == "vr::HmdVector3_t":
typename = "HmdVector3"
elif param.type.spelling == "vr::HmdColor_t":
typename = "HmdColor"
elif param_size == 8:
typename = "uint64"
elif param_size == 4 or param_size == 2:
typename = "uint32"
else:
typename = "unknown"
thunks_c.write(" push_%s_parameter(%s);\n" % (typename, param.spelling))
if method.result_type.kind != clang.cindex.TypeKind.VOID:
thunks_c.write(" return 0;\n")
thunks_c.write("}\n")
parameter_checks = []
def add_parameter_check(typename, value):
parameter_checks.append("check_%s_parameter(\"%s_%s\", %s)" % (typename, class_name, method_name, value))
add_parameter_check("ptr", "this_ptr_value")
f.write("\n")
f.write(" clear_parameters();\n")
f.write(" capi_%s_%s(" % (class_name, method_name))
first_param = True
if returns_record:
f.write("data_ptr_value")
first_param = False
add_parameter_check("ptr", "data_ptr_value")
for i, param in enumerate(get_params(method)):
i += 1
param_size = param.type.get_size()
if param.type.kind == clang.cindex.TypeKind.POINTER \
or param.type.spelling.endswith("&") \
or param.type.spelling == "vr::glSharedTextureHandle_t":
v = "(void *)%s" % i
add_parameter_check("ptr", v)
elif param.type.spelling == "bool":
v = "1"
add_parameter_check("bool", v)
elif param.type.spelling == "float":
v = "%s.0f" % i
add_parameter_check("float", v)
elif param.type.spelling == "vr::HmdRect2_t":
v = "DEFAULT_RECT";
add_parameter_check("HmdRect2", v)
elif param.type.spelling == "vr::HmdVector2_t":
v = "DEFAULT_VECTOR2";
add_parameter_check("HmdVector2", v)
elif param.type.spelling == "vr::HmdVector3_t":
v = "DEFAULT_VECTOR3";
add_parameter_check("HmdVector3", v)
elif param.type.spelling == "vr::HmdColor_t":
v = "DEFAULT_COLOR";
add_parameter_check("HmdColor", v)
elif param_size == 8:
v = str(i)
add_parameter_check("uint64", v)
elif param_size == 4 or param_size == 2:
v = str(i)
add_parameter_check("uint32", v)
if not first_param:
f.write(", ")
first_param = False
f.write(v)
f.write(");\n")
for c in parameter_checks:
f.write(" %s;\n" % c)
def generate_c_api_thunk_tests(winclassname, methods, method_names):
class_name = re.sub(r'^win[A-Za-z]+_', '', winclassname)
filename = "tests/capi_thunks_autogen.h"
file_exists = os.path.isfile(filename)
header = open(filename, "a")
if not file_exists:
header.write("""/* This file is auto-generated, do not edit. */
#include <stdarg.h>
#include <stdint.h>
#include "windef.h"
#include "winbase.h"
#include "cxx.h"
#include "flatapi.h"
#include "vrclient_defs.h"
#include "capi_thunks.h"
""")
header.write("\nvoid test_capi_thunks_%s(void);\n" % class_name)
filename = "tests/capi_thunks_autogen.c"
file_exists = os.path.isfile(filename)
thunks_c = open(filename, "a")
if not file_exists:
thunks_c.write("""/* This file is auto-generated, do not edit. */
#include "capi_thunks_autogen.h"
""")
filename = "tests/capi_thunks_tests_autogen.c"
file_exists = os.path.isfile(filename)
with open(filename, "a") as f:
if not file_exists:
f.write("""/* This file is auto-generated, do not edit. */
#include "capi_thunks_autogen.h"
""")
f.write("\nvoid test_capi_thunks_%s(void)\n{\n" % class_name)
f.write(" struct thunk *t = alloc_thunks(1);\n");
for i in range(len(methods)):
generate_c_api_method_test(f, header, thunks_c, class_name, method_names[i], methods[i])
f.write(" VirtualFree(t, 0, MEM_RELEASE);\n")
f.write("}\n")
filename = "tests/main_autogen.c"
file_exists = os.path.isfile(filename)
with open(filename, "a") as f:
if not file_exists:
f.write("""/* This file is auto-generated, do not edit. */
#include "capi_thunks_autogen.h"
#include <stdio.h>
int main(void)
{
""")
f.write(" test_capi_thunks_%s();\n" % class_name)
#clang.cindex.Config.set_library_file("/usr/lib/llvm-3.8/lib/libclang-3.8.so.1");
prog = re.compile("^.*const\s*char.* \*?(\w*)_Version.*\"(.*)\"")
for sdkver in sdk_versions:
iface_versions = {}
print("sdkver is: " + sdkver)
for f in os.listdir("openvr_%s" % sdkver):
x = open("openvr_%s/%s" % (sdkver, f), "r")
for l in x:
if "_Version" in l:
result = prog.match(l)
if result:
iface, version = result.group(1, 2)
iface_versions[iface] = version
for fname, classes, user_structs, system_structs in files:
# Parse as 32-bit C++
input_name = "openvr_%s/%s" % (sdkver, fname)
sys.stdout.write("about to parse %s\n" % input_name)
if not os.path.isfile(input_name):
continue
index = clang.cindex.Index.create()
tu = index.parse(input_name, args=['-x', 'c++', '-std=c++11', '-DGNUC', '-Iopenvr_%s/' % sdkver, '-I/usr/lib/clang/5.0.0/include/'])
diagnostics = list(tu.diagnostics)
if len(diagnostics) > 0:
print 'There were parse errors'
pprint.pprint(diagnostics)
else:
children = list(tu.cursor.get_children())
for child in children:
if child.kind == clang.cindex.CursorKind.NAMESPACE and child.displayname == "vr":
for vrchild in list(child.get_children()):
if vrchild.kind == clang.cindex.CursorKind.CLASS_DECL and vrchild.displayname in classes:
handle_class(sdkver, vrchild)
if vrchild.kind == clang.cindex.CursorKind.STRUCT_DECL or \
vrchild.kind == clang.cindex.CursorKind.CLASS_DECL:
if strip_ns(vrchild.displayname) in user_structs:
handle_struct(sdkver, vrchild, LIN_TO_WIN)
elif strip_ns(vrchild.displayname) in system_structs:
handle_struct(sdkver, vrchild, WRAPPERS)
if vrchild.displayname in print_sizes:
sys.stdout.write("size of %s is %u\n" % (vrchild.displayname, vrchild.type.get_size()))
for f in cpp_files_need_close_brace:
m = open(f, "a")
m.write("\n}\n")
with open("tests/main_autogen.c", "a") as f:
f.write(" printf(\"All tests executed.\\n\");\n")
f.write("}\n")
generate_flatapi_c()