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Add WebAssembly SIMD support

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This commit is contained in:
Adam Scott
2025-05-12 12:40:59 -04:00
parent 19bb18716e
commit f114a8d1d1
2 changed files with 11 additions and 0 deletions
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6
modules/jolt_physics/SCsub
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@@ -6,6 +6,12 @@ Import("env_modules")
env_jolt = env_modules.Clone() env_jolt = env_modules.Clone()
# Platform specific flags.
if env["platform"] == "web" and env["wasm_simd"]:
# Enable SSE 4.2 so that WebAssembly SIMD can benefit from it.
# SSE 4.2 is the highest version supported by WebAssembly SIMD.
env_jolt.Append(CCFLAGS=["-msse4.2"])
# Thirdparty source files # Thirdparty source files
thirdparty_dir = "#thirdparty/jolt_physics/" thirdparty_dir = "#thirdparty/jolt_physics/"

5
platform/web/detect.py
View File

@@ -57,6 +57,7 @@ def get_opts():
"Use Emscripten PROXY_TO_PTHREAD option to run the main application code to a separate thread", "Use Emscripten PROXY_TO_PTHREAD option to run the main application code to a separate thread",
False, False,
), ),
BoolVariable("wasm_simd", "Use WebAssembly SIMD to improve CPU performance", True),
] ]
@@ -276,6 +277,10 @@ def configure(env: "SConsEnvironment"):
# https://github.com/emscripten-core/emscripten/issues/18034#issuecomment-1277561925 # https://github.com/emscripten-core/emscripten/issues/18034#issuecomment-1277561925
env.Append(LINKFLAGS=["-sTEXTDECODER=0"]) env.Append(LINKFLAGS=["-sTEXTDECODER=0"])
# Enable WebAssembly SIMD
if env["wasm_simd"]:
env.Append(CCFLAGS=["-msimd128"])
# Reduce code size by generating less support code (e.g. skip NodeJS support). # Reduce code size by generating less support code (e.g. skip NodeJS support).
env.Append(LINKFLAGS=["-sENVIRONMENT=web,worker"]) env.Append(LINKFLAGS=["-sENVIRONMENT=web,worker"])