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Add monkey patch to Emscripten to disable OffscreenCanvas at runtime (#493)

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* Add runtime option to disable OffscreenCanvas in web port

* Remove old patch
This commit is contained in:
Christian Semmler 2025-07-02 19:10:02 -07:00 committed by GitHub
parent 3894d58efc
commit be73b40ae8
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GPG Key ID: B5690EEEBB952194
2 changed files with 16 additions and 3 deletions
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13
ISLE/emscripten/libwasmfs_fetch.js.patch → ISLE/emscripten/emscripten.patch
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@ -1,3 +1,16 @@
diff --git a/src/lib/libpthread.js b/src/lib/libpthread.js
index 6d979627e..97e3f8684 100644
--- a/src/lib/libpthread.js
+++ b/src/lib/libpthread.js
@@ -697,7 +697,7 @@ var LibraryPThread = {
{
transferredCanvasNames = UTF8ToString(transferredCanvasNames).trim();
}
- transferredCanvasNames = transferredCanvasNames ? transferredCanvasNames.split(',') : [];
+ transferredCanvasNames = transferredCanvasNames && !Module['disableOffscreenCanvases'] ? transferredCanvasNames.split(',') : [];
#if GL_DEBUG
dbg(`pthread_create: transferredCanvasNames="${transferredCanvasNames}"`);
#endif
diff --git a/src/lib/libwasmfs_fetch.js b/src/lib/libwasmfs_fetch.js
index e8c9f7e21..caf1971d2 100644
--- a/src/lib/libwasmfs_fetch.js

6
docker/emscripten/Dockerfile
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@ -16,10 +16,10 @@ RUN chown -R emscripten:emscripten /src
USER emscripten
COPY ISLE/emscripten/libwasmfs_fetch.js.patch /tmp/
COPY ISLE/emscripten/emscripten.patch /tmp/
RUN cd /emsdk/upstream/emscripten && \
git apply --check /tmp/libwasmfs_fetch.js.patch && \
git apply /tmp/libwasmfs_fetch.js.patch
git apply --check /tmp/emscripten.patch && \
git apply /tmp/emscripten.patch
COPY --chown=emscripten:emscripten 3rdparty/ ./3rdparty/
COPY --chown=emscripten:emscripten LEGO1/ ./LEGO1/