Initial commit

android/filament-android/src/main/cpp/EntityManager.cpp

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#include <jni.h>
+
+#include <utils/EntityManager.h>
+
+using namespace utils;
+
+static_assert(sizeof(jint) == sizeof(Entity), "jint and Entity are not compatible!!");
+
+extern "C" JNIEXPORT jlong JNICALL
+Java_com_google_android_filament_EntityManager_nGetEntityManager(JNIEnv *env, jclass type) {
+    return (jlong) &EntityManager::get();
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_google_android_filament_EntityManager_nCreate__JI_3I(JNIEnv *env, jclass type,
+        jlong nativeEntityManager, jint n, jintArray entities_) {
+    EntityManager *em = (EntityManager *) nativeEntityManager;
+    jint *entities = env->GetIntArrayElements(entities_, NULL);
+
+    // This is very very gross, we just pretend Entity is just like an jint (which it is), but still.
+    em->create((size_t) n, reinterpret_cast<Entity *>(entities));
+
+    env->ReleaseIntArrayElements(entities_, entities, 0);
+}
+
+extern "C" JNIEXPORT jint JNICALL
+Java_com_google_android_filament_EntityManager_nCreate__J(JNIEnv *env, jclass type,
+        jlong nativeEntityManager) {
+    EntityManager *em = (EntityManager *) nativeEntityManager;
+    return em->create().getId();
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_google_android_filament_EntityManager_nDestroy__JI_3I(JNIEnv *env, jclass type,
+        jlong nativeEntityManager, jint n, jintArray entities_) {
+    EntityManager *em = (EntityManager *) nativeEntityManager;
+    jint *entities = env->GetIntArrayElements(entities_, NULL);
+
+    // This is very very gross, we just pretend Entity is just like an jint (which it is), but still.
+    em->destroy((size_t) n, reinterpret_cast<Entity *>(entities));
+
+    env->ReleaseIntArrayElements(entities_, entities, JNI_ABORT);
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_google_android_filament_EntityManager_nDestroy__JI(JNIEnv *env, jclass type,
+        jlong nativeEntityManager, jint entity) {
+    EntityManager *em = (EntityManager *) nativeEntityManager;
+    em->destroy(reinterpret_cast<Entity &>(entity));
+}
+
+extern "C" JNIEXPORT jboolean JNICALL
+Java_com_google_android_filament_EntityManager_nIsAlive(JNIEnv *env, jclass type,
+        jlong nativeEntityManager, jint entity) {
+    EntityManager *em = (EntityManager *) nativeEntityManager;
+    return (jboolean) em->isAlive(reinterpret_cast<Entity &>(entity));
+}