No need for a proper library, this is just a common location to simplify JNI bindings in other projects like filamat and gltfio. There is no need to move the one Java source file (`NioUtils.java`) since downstream libraries will have a dependency on Filament, and FindClass should work fine.
111 lines
3.9 KiB
C++
111 lines
3.9 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <functional>
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#include "CallbackUtils.h"
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struct {
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#ifdef ANDROID
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jclass handlerClass;
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jmethodID post;
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#endif
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jclass executorClass;
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jmethodID execute;
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} gCallbackUtils;
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JniCallback* JniCallback::make(filament::Engine* engine,
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JNIEnv* env, jobject handler, jobject callback) {
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void* that = engine->streamAlloc(sizeof(JniCallback), alignof(JniCallback));
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return new (that) JniCallback(env, handler, callback);
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}
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JniCallback::JniCallback(JNIEnv* env, jobject handler, jobject callback)
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: mEnv(env)
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, mHandler(env->NewGlobalRef(handler))
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, mCallback(env->NewGlobalRef(callback)) {
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}
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JniCallback::~JniCallback() {
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if (mHandler && mCallback) {
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#ifdef ANDROID
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if (mEnv->IsInstanceOf(mHandler, gCallbackUtils.handlerClass)) {
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mEnv->CallBooleanMethod(mHandler, gCallbackUtils.post, mCallback);
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}
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#endif
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if (mEnv->IsInstanceOf(mHandler, gCallbackUtils.executorClass)) {
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mEnv->CallVoidMethod(mHandler, gCallbackUtils.execute, mCallback);
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}
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}
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mEnv->DeleteGlobalRef(mHandler);
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mEnv->DeleteGlobalRef(mCallback);
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}
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void JniCallback::invoke(void*, size_t, void* user) {
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JniCallback* data = reinterpret_cast<JniCallback*>(user);
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// don't call delete here, because we don't own the storage
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data->~JniCallback();
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}
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JniBufferCallback* JniBufferCallback::make(filament::Engine* engine,
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JNIEnv* env, jobject handler, jobject callback, AutoBuffer&& buffer) {
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void* that = engine->streamAlloc(sizeof(JniBufferCallback), alignof(JniBufferCallback));
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return new (that) JniBufferCallback(env, handler, callback, std::move(buffer));
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}
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JniBufferCallback::JniBufferCallback(JNIEnv* env, jobject handler, jobject callback,
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AutoBuffer&& buffer)
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: mEnv(env)
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, mHandler(env->NewGlobalRef(handler))
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, mCallback(env->NewGlobalRef(callback))
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, mBuffer(std::move(buffer)){
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}
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JniBufferCallback::~JniBufferCallback() {
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if (mHandler && mCallback) {
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#ifdef ANDROID
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if (mEnv->IsInstanceOf(mHandler, gCallbackUtils.handlerClass)) {
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mEnv->CallBooleanMethod(mHandler, gCallbackUtils.post, mCallback);
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}
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#endif
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if (mEnv->IsInstanceOf(mHandler, gCallbackUtils.executorClass)) {
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mEnv->CallVoidMethod(mHandler, gCallbackUtils.execute, mCallback);
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}
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}
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mEnv->DeleteGlobalRef(mHandler);
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mEnv->DeleteGlobalRef(mCallback);
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}
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void JniBufferCallback::invoke(void*, size_t, void* user) {
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JniBufferCallback* data = reinterpret_cast<JniBufferCallback*>(user);
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// don't call delete here, because we don't own the storage
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data->~JniBufferCallback();
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}
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void registerCallbackUtils(JNIEnv *env) {
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#ifdef ANDROID
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gCallbackUtils.handlerClass = env->FindClass("android/os/Handler");
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gCallbackUtils.handlerClass = (jclass) env->NewGlobalRef(gCallbackUtils.handlerClass);
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gCallbackUtils.post = env->GetMethodID(gCallbackUtils.handlerClass,
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"post", "(Ljava/lang/Runnable;)Z");
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#endif
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gCallbackUtils.executorClass = env->FindClass("java/util/concurrent/Executor");
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gCallbackUtils.executorClass = (jclass) env->NewGlobalRef(gCallbackUtils.executorClass);
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gCallbackUtils.execute = env->GetMethodID(gCallbackUtils.executorClass,
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"execute", "(Ljava/lang/Runnable;)V");
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}
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