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import os
import sys
import string
def is_active():
return True
def get_name():
return "JavaScript"
def can_build():
return os.environ.has_key("EMSCRIPTEN_ROOT")
def get_opts():
return [
['wasm', 'Compile to WebAssembly', 'no'],
['javascript_eval', 'Enable JavaScript eval interface', 'yes'],
]
def get_flags():
return [
('tools', 'no'),
('module_etc1_enabled', 'no'),
('module_mpc_enabled', 'no'),
('module_theora_enabled', 'no'),
]
def create(env):
# remove Windows' .exe suffix
return env.Clone(PROGSUFFIX='')
def escape_sources_backslashes(target, source, env, for_signature):
return [path.replace('\\','\\\\') for path in env.GetBuildPath(source)]
def escape_target_backslashes(target, source, env, for_signature):
return env.GetBuildPath(target[0]).replace('\\','\\\\')
def configure(env):
env['ENV'] = os.environ
env.Append(CPPPATH=['#platform/javascript'])
env.PrependENVPath('PATH', os.environ['EMSCRIPTEN_ROOT'])
env['CC'] = 'emcc'
env['CXX'] = 'em++'
env['LINK'] = 'emcc'
env['RANLIB'] = 'emranlib'
# Emscripten's ar has issues with duplicate file names, so use cc
env['AR'] = 'emcc'
env['ARFLAGS'] = '-o'
if (os.name == 'nt'):
# use TempFileMunge on Windows since some commands get too long for
# cmd.exe even with spawn_fix
# need to escape backslashes for this
env['ESCAPED_SOURCES'] = escape_sources_backslashes
env['ESCAPED_TARGET'] = escape_target_backslashes
env['ARCOM'] = '${TEMPFILE("%s")}' % env['ARCOM'].replace('$SOURCES', '$ESCAPED_SOURCES').replace('$TARGET', '$ESCAPED_TARGET')
env['OBJSUFFIX'] = '.bc'
env['LIBSUFFIX'] = '.bc'
if (env["target"] == "release"):
env.Append(CCFLAGS=['-O2'])
elif (env["target"] == "release_debug"):
env.Append(CCFLAGS=['-O2', '-DDEBUG_ENABLED'])
elif (env["target"] == "debug"):
env.Append(CCFLAGS=['-D_DEBUG', '-Wall', '-O2', '-DDEBUG_ENABLED'])
#env.Append(CCFLAGS=['-D_DEBUG', '-Wall', '-g4', '-DDEBUG_ENABLED'])
env.Append(CPPFLAGS=['-DDEBUG_MEMORY_ALLOC'])
# TODO: Move that to opus module's config
if("module_opus_enabled" in env and env["module_opus_enabled"] != "no"):
env.opus_fixed_point = "yes"
# These flags help keep the file size down
env.Append(CPPFLAGS=["-fno-exceptions", '-DNO_SAFE_CAST', '-fno-rtti'])
env.Append(CPPFLAGS=['-DJAVASCRIPT_ENABLED', '-DUNIX_ENABLED', '-DPTHREAD_NO_RENAME', '-DNO_FCNTL', '-DMPC_FIXED_POINT', '-DTYPED_METHOD_BIND', '-DNO_THREADS'])
env.Append(CPPFLAGS=['-DGLES3_ENABLED'])
if env['wasm'] == 'yes':
env.Append(LINKFLAGS=['-s', 'BINARYEN=1'])
# Maximum memory size is baked into the WebAssembly binary during
# compilation, so we need to enable memory growth to allow setting
# TOTAL_MEMORY at runtime. The value set at runtime must be higher than
# what is set during compilation, check TOTAL_MEMORY in Emscripten's
# src/settings.js for the default.
env.Append(LINKFLAGS=['-s', 'ALLOW_MEMORY_GROWTH=1'])
env.extra_suffix = '.webassembly' + env.extra_suffix
else:
env.Append(CPPFLAGS=['-s', 'ASM_JS=1'])
env.Append(LINKFLAGS=['-s', 'ASM_JS=1'])
env.Append(LINKFLAGS=['--separate-asm'])
if env['javascript_eval'] == 'yes':
env.Append(CPPFLAGS=['-DJAVASCRIPT_EVAL_ENABLED'])
env.Append(LINKFLAGS=['-O2'])
env.Append(LINKFLAGS=['-s', 'USE_WEBGL2=1'])
# env.Append(LINKFLAGS=['-g4'])
import methods
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