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(web) on Emscripten builds, use static global wrapper function for texture upload complete callbacks (this is needed because all callbacks need to be proxied to the main thread

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This commit is contained in:
Nick Fisher
2025-06-11 11:08:13 +08:00
parent 0461bb364a
commit 32fe54ac09
1 changed files with 24 additions and 1 deletions
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25
thermion_dart/native/src/c_api/ThermionDartRenderThreadApi.cpp
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@@ -861,12 +861,35 @@ extern "C"
auto fut = _renderThread->add_task(lambda);
}
#ifdef EMSCRIPTEN
static std::unordered_map<uint32_t, std::function<void(int32_t)>> _emscriptenWrappers;
static void Emscripten_voidCallback(int32_t requestId) {
auto it = _emscriptenWrappers.find(requestId);
if (it != _emscriptenWrappers.end()) {
it->second(requestId);
_emscriptenWrappers.erase(it);
} else {
Log("SEVERE: failed to find request id %d", requestId);
}
}
#endif
EMSCRIPTEN_KEEPALIVE void Texture_decodeKtxRenderThread(
TEngine *tEngine, uint8_t *ktxData, size_t length, float *sphericalHarmonics, uint32_t requestId, VoidCallback onTextureUploadComplete, void (*onComplete)(TTexture *)) {
std::packaged_task<void()> lambda(
[=]() mutable
{
auto *texture = Texture_decodeKtx(tEngine, ktxData, length, sphericalHarmonics, requestId, onTextureUploadComplete);
#ifdef EMSCRIPTEN
std::function<void(int32_t)> wrapper = [=](int32_t requestId) {
PROXY(onTextureUploadComplete(requestId));
};
_emscriptenWrappers[requestId] = wrapper;
auto *texture = Texture_decodeKtx(tEngine, ktxData, length, sphericalHarmonics, requestId, Emscripten_voidCallback);
#else
auto *texture = Texture_decodeKtx(tEngine, ktxData, length, sphericalHarmonics, requestId, onTextureUploadComplete);
#endif
PROXY(onComplete(texture));
});
auto fut = _renderThread->add_task(lambda);