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-rw-r--r--platform/javascript/javascript_main.cpp12
1 files changed, 8 insertions, 4 deletions
diff --git a/platform/javascript/javascript_main.cpp b/platform/javascript/javascript_main.cpp
index 740a72fafa..fd61c46e63 100644
--- a/platform/javascript/javascript_main.cpp
+++ b/platform/javascript/javascript_main.cpp
@@ -80,6 +80,9 @@ extern "C" EMSCRIPTEN_KEEPALIVE void main_after_fs_sync(char *p_idbfs_err) {
Main::start();
os->get_main_loop()->init();
emscripten_resume_main_loop();
+ // Immediately run the first iteration.
+ // We are inside an animation frame, we want to immediately draw on the newly setup canvas.
+ main_loop_callback();
}
int main(int argc, char *argv[]) {
@@ -91,14 +94,15 @@ int main(int argc, char *argv[]) {
// Sync from persistent state into memory and then
// run the 'main_after_fs_sync' function.
/* clang-format off */
- EM_ASM(
+ EM_ASM({
FS.mkdir('/userfs');
FS.mount(IDBFS, {}, '/userfs');
FS.syncfs(true, function(err) {
- ccall('main_after_fs_sync', null, ['string'], [err ? err.message : ""])
+ requestAnimationFrame(function() {
+ ccall('main_after_fs_sync', null, ['string'], [err ? err.message : ""]);
+ });
});
-
- );
+ });
/* clang-format on */
return 0;