Merge pull request #349 from GoogleChromeLabs/348-empscripten-failure

Fix Emscripten runtime failure
GoogleChromeLabs · Nov 2, 2023 · b3b0851 · b3b0851
2 parents 6b3e732 + 878423c
commit b3b0851
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diff --git a/src/_data/build_info.json b/src/_data/build_info.json
@@ -1 +1 @@
-{"version":"3.1.0","revision":"fce9086","lastUpdated":"2023-07-10","copyrightYear":2023}
+{"version":"3.1.0","revision":"7201485","lastUpdated":"2023-11-02","copyrightYear":2023}
diff --git a/src/audio-worklet/design-pattern/wasm-supersaw/Makefile b/src/audio-worklet/design-pattern/wasm-supersaw/Makefile
@@ -24,6 +24,7 @@ build: $(DEPS)
 		-s SINGLE_FILE=1 \
 		-s WASM=1 \
 		-s WASM_ASYNC_COMPILATION=0 \
+		-s EXPORTED_FUNCTIONS="['_malloc']" \
 		-o ./synth.wasm.js \
 		./synth_src/synth_bind.cc $(DEPS)
 

diff --git a/src/audio-worklet/design-pattern/wasm-supersaw/README.md b/src/audio-worklet/design-pattern/wasm-supersaw/README.md
@@ -0,0 +1,16 @@
+# How to use wasm-supersaw example
+
+Unlike other AudioWorklet examples in this repository, this examples needs
+an additional step to build and compile. Follow the steps below:
+
+1. Install Emscripten in your development setup. Follow the instruction:
+  https://emscripten.org/docs/getting_started/downloads.html
+
+2. Run `emcc -v` to confirm the Emscripten installation and its version. This
+  example needs 3.1.48 or later to work correctly. (See
+  [this issue](https://github.com/GoogleChromeLabs/web-audio-samples/issues/348)
+  for details)
+
+3. In the terminal, run `make` to build the WASM file.
+
+4. Serve `index.html` file in the directoy.
Original file line number	Diff line number	Diff line change
		@@ -1 +1 @@
		{"version":"3.1.0","revision":"fce9086","lastUpdated":"2023-07-10","copyrightYear":2023}
		{"version":"3.1.0","revision":"7201485","lastUpdated":"2023-11-02","copyrightYear":2023}