Files
filament/android/common/CallbackUtils.cpp
2020-08-05 17:27:12 -07:00

98 lines
3.6 KiB
C++

/*
* 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 "CallbackUtils.h"
void acquireCallbackJni(JNIEnv* env, CallbackJni& callbackUtils) {
#ifdef ANDROID
callbackUtils.handlerClass = env->FindClass("android/os/Handler");
callbackUtils.handlerClass = (jclass) env->NewGlobalRef(callbackUtils.handlerClass);
callbackUtils.post = env->GetMethodID(callbackUtils.handlerClass,
"post", "(Ljava/lang/Runnable;)Z");
#endif
callbackUtils.executorClass = env->FindClass("java/util/concurrent/Executor");
callbackUtils.executorClass = (jclass) env->NewGlobalRef(callbackUtils.executorClass);
callbackUtils.execute = env->GetMethodID(callbackUtils.executorClass,
"execute", "(Ljava/lang/Runnable;)V");
}
void releaseCallbackJni(JNIEnv* env, CallbackJni callbackUtils, jobject handler, jobject callback) {
if (handler && callback) {
#ifdef ANDROID
if (env->IsInstanceOf(handler, callbackUtils.handlerClass)) {
env->CallBooleanMethod(handler, callbackUtils.post, callback);
}
#endif
if (env->IsInstanceOf(handler, callbackUtils.executorClass)) {
env->CallVoidMethod(handler, callbackUtils.execute, callback);
}
}
env->DeleteGlobalRef(handler);
env->DeleteGlobalRef(callback);
#ifdef ANDROID
env->DeleteGlobalRef(callbackUtils.handlerClass);
#endif
env->DeleteGlobalRef(callbackUtils.executorClass);
}
JniBufferCallback* JniBufferCallback::make(filament::Engine* engine,
JNIEnv* env, jobject handler, jobject callback, AutoBuffer&& buffer) {
return new JniBufferCallback(env, handler, callback, std::move(buffer));
}
JniBufferCallback::JniBufferCallback(JNIEnv* env, jobject handler, jobject callback,
AutoBuffer&& buffer)
: mEnv(env)
, mHandler(env->NewGlobalRef(handler))
, mCallback(env->NewGlobalRef(callback))
, mBuffer(std::move(buffer)) {
acquireCallbackJni(env, mCallbackUtils);
}
JniBufferCallback::~JniBufferCallback() {
releaseCallbackJni(mEnv, mCallbackUtils, mHandler, mCallback);
}
void JniBufferCallback::invoke(void*, size_t, void* user) {
JniBufferCallback* data = reinterpret_cast<JniBufferCallback*>(user);
delete data;
}
// -----------------------------------------------------------------------------------------------
JniImageCallback* JniImageCallback::make(filament::Engine* engine,
JNIEnv* env, jobject handler, jobject callback, long image) {
return new JniImageCallback(env, handler, callback, image);
}
JniImageCallback::JniImageCallback(JNIEnv* env, jobject handler, jobject callback, long image)
: mEnv(env)
, mHandler(env->NewGlobalRef(handler))
, mCallback(env->NewGlobalRef(callback))
, mImage(image) {
acquireCallbackJni(env, mCallbackUtils);
}
JniImageCallback::~JniImageCallback() {
releaseCallbackJni(mEnv, mCallbackUtils, mHandler, mCallback);
}
void JniImageCallback::invoke(void*, void* user) {
JniImageCallback* data = reinterpret_cast<JniImageCallback*>(user);
delete data;
}