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gltfio: Add fast path for native material providers.

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This commit is contained in:
Philip Rideout
2021-07-01 15:01:53 -07:00
parent e9ff2157bc
commit ca3b841974
1 changed files with 15 additions and 2 deletions
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17
android/gltfio-android/src/main/cpp/AssetLoader.cpp
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@@ -169,10 +169,23 @@ extern "C" JNIEXPORT jlong JNICALL
Java_com_google_android_filament_gltfio_AssetLoader_nCreateAssetLoader(JNIEnv* env, jclass,
jlong nativeEngine, jobject provider, jlong nativeEntities) {
Engine* engine = (Engine*) nativeEngine;
MaterialProvider* materials = new JavaMaterialProvider(env, provider);
MaterialProvider* materialProvider = nullptr;
// First check for a fast path that passes a native MaterialProvider into the loader.
// This drastically reduces the number of JNI calls while the asset is being loaded.
jclass klass = env->GetObjectClass(provider);
jmethodID getNativeObject = env->GetMethodID(klass, "getNativeObject", "()J");
if (getNativeObject) {
materialProvider = (MaterialProvider*) env->CallLongMethod(provider, getNativeObject);
}
if (materialProvider == nullptr) {
materialProvider = new JavaMaterialProvider(env, provider);
}
EntityManager* entities = (EntityManager*) nativeEntities;
NameComponentManager* names = new NameComponentManager(*entities);
return (jlong) AssetLoader::create({engine, materials, names, entities});
return (jlong) AssetLoader::create({engine, materialProvider, names, entities});
}
extern "C" JNIEXPORT void JNICALL