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#!python
import os, sys, platform, json, subprocess
import SCons
def add_sources(sources, dirpath, extension):
for f in os.listdir(dirpath):
if f.endswith("." + extension):
sources.append(dirpath + "/" + f)
def replace_flags(flags, replaces):
for k, v in replaces.items():
if k in flags:
flags[flags.index(k)] = v
env = Environment()
opts = Variables(["customs.py"], ARGUMENTS)
opts.Add(EnumVariable("godot_version", "The Godot target version", "4", ["3", "4"]))
opts.Update(env)
# Minimum target platform versions.
if "ios_min_version" not in ARGUMENTS:
ARGUMENTS["ios_min_version"] = "11.0"
if "macos_deployment_target" not in ARGUMENTS:
ARGUMENTS["macos_deployment_target"] = "11.0"
if "android_api_level" not in ARGUMENTS:
ARGUMENTS["android_api_level"] = "28"
if env["godot_version"] == "3":
if "platform" in ARGUMENTS and ARGUMENTS["platform"] == "macos":
ARGUMENTS["platform"] = "osx" # compatibility with old osx name
env = SConscript("godot-cpp-3.x/SConstruct")
# Patch base env
replace_flags(
env["CCFLAGS"],
{
"-mios-simulator-version-min=10.0": "-mios-simulator-version-min=11.0",
"-miphoneos-version-min=10.0": "-miphoneos-version-min=11.0",
"/std:c++14": "/std:c++17",
"-std=c++14": "-std=c++17",
},
)
env = env.Clone()
if env["target"] == "debug":
env.Append(CPPDEFINES=["DEBUG_ENABLED"])
if env["platform"] == "windows" and env["use_mingw"]:
env.Append(LINKFLAGS=["-static-libgcc"])
if env["platform"] == "osx":
env["platform"] = "macos" # compatibility with old osx name
ARGUMENTS["platform"] = "macos"
# Normalize suffix
if env["platform"] in ["windows", "linux"]:
env["arch"] = "x86_32" if env["bits"] == "32" else "x86_64"
env["arch_suffix"] = env["arch"]
elif env["platform"] == "macos":
env["arch"] = env["macos_arch"]
env["arch_suffix"] = env["arch"]
elif env["platform"] == "ios":
env["arch"] = "arm32" if env["ios_arch"] == "armv7" else env["ios_arch"]
env["arch_suffix"] = env["ios_arch"] + (".simulator" if env["ios_simulator"] else "")
elif env["platform"] == "android":
env["arch"] = {
"armv7": "arm32",
"arm64v8": "arm64",
"x86": "x86_32",
"x86_64": "x86_64",
}[env["android_arch"]]
env["arch_suffix"] = env["arch"]
target_compat = "template_" + env["target"]
env["suffix"] = ".{}.{}.{}".format(env["platform"], target_compat, env["arch_suffix"])
env["debug_symbols"] = False
# Set missing CC for MinGW from upstream build module.
if env["platform"] == "windows" and sys.platform != "win32" and sys.platform != "msys":
# Cross-compilation using MinGW
if env["bits"] == "64":
env["CC"] = "x86_64-w64-mingw32-gcc"
elif env["bits"] == "32":
env["CC"] = "i686-w64-mingw32-gcc"
else:
env = SConscript("godot-cpp/SConstruct").Clone()
# Should probably go to upstream godot-cpp.
# We let SCons build its default ENV as it includes OS-specific things which we don't
# want to have to pull in manually.
# Then we prepend PATH to make it take precedence, while preserving SCons' own entries.
env.PrependENVPath("PATH", os.getenv("PATH"))
env.PrependENVPath("PKG_CONFIG_PATH", os.getenv("PKG_CONFIG_PATH"))
if "TERM" in os.environ: # Used for colored output.
env["ENV"]["TERM"] = os.environ["TERM"]
# Patch mingw SHLIBSUFFIX.
if env["platform"] == "windows" and env["use_mingw"]:
env["SHLIBSUFFIX"] = ".dll"
opts.Update(env)
target = env["target"]
if env["godot_version"] == "3":
result_path = os.path.join("bin", "gdnative", "webrtc" if env["target"] == "release" else "webrtc_debug")
else:
result_path = os.path.join("bin", "extension", "webrtc")
# Our includes and sources
env.Append(CPPPATH=["src/"])
env.Append(CPPDEFINES=["RTC_STATIC"])
sources = []
sources.append(
[
"src/WebRTCLibDataChannel.cpp",
"src/WebRTCLibPeerConnection.cpp",
]
)
if env["godot_version"] == "4":
sources.append("src/init_gdextension.cpp")
else:
env.Append(CPPDEFINES=["GDNATIVE_WEBRTC"])
sources.append("src/init_gdnative.cpp")
add_sources(sources, "src/net/", "cpp")
# Since the OpenSSL build system does not support macOS universal binaries, we first need to build the two libraries
# separately, then we join them together using lipo.
mac_universal = env["platform"] == "macos" and env["arch"] == "universal"
build_targets = []
build_envs = [env]
# For macOS universal builds, setup one build environment per architecture.
if mac_universal:
build_envs = []
for arch in ["x86_64", "arm64"]:
benv = env.Clone()
benv["arch"] = arch
benv["CCFLAGS"] = SCons.Util.CLVar(str(benv["CCFLAGS"]).replace("-arch x86_64 -arch arm64", "-arch " + arch))
benv["LINKFLAGS"] = SCons.Util.CLVar(
str(benv["LINKFLAGS"]).replace("-arch x86_64 -arch arm64", "-arch " + arch)
)
benv["suffix"] = benv["suffix"].replace("universal", arch)
benv["SHOBJSUFFIX"] = benv["suffix"] + benv["SHOBJSUFFIX"]
build_envs.append(benv)
# Build our library and its dependencies.
for benv in build_envs:
# Dependencies
for tool in ["cmake", "common", "ssl", "rtc"]:
benv.Tool(tool, toolpath=["tools"])
ssl = benv.BuildOpenSSL()
benv.NoCache(ssl) # Needs refactoring to properly cache generated headers.
rtc = benv.BuildLibDataChannel()
benv.Depends(sources, [ssl, rtc])
# Make the shared library
result_name = "webrtc_native{}{}".format(benv["suffix"], benv["SHLIBSUFFIX"])
library = benv.SharedLibrary(target=os.path.join(result_path, "lib", result_name), source=sources)
build_targets.append(library)
Default(build_targets)
# For macOS universal builds, join the libraries using lipo.
if mac_universal:
result_name = "libwebrtc_native{}{}".format(env["suffix"], env["SHLIBSUFFIX"])
universal_target = env.Command(
os.path.join(result_path, "lib", result_name), build_targets, "lipo $SOURCES -output $TARGETS -create"
)
Default(universal_target)
# GDNativeLibrary
if env["godot_version"] == "3":
gdnlib = "webrtc" if target != "debug" else "webrtc_debug"
ext = ".tres"
extfile = env.Substfile(
os.path.join(result_path, gdnlib + ext),
"misc/webrtc" + ext,
SUBST_DICT={
"{GDNATIVE_PATH}": gdnlib,
"{TARGET}": "template_" + env["target"],
},
)
else:
extfile = env.InstallAs(os.path.join(result_path, "webrtc.gdextension"), "misc/webrtc.gdextension")
Default(extfile)
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