mirror of
https://git.eden-emu.dev/eden-emu/eden.git
synced 2026-08-22 15:48:56 +00:00
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/*
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* Copyright 2018 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 <jni.h>
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#include <string>
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#include <vector>
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#include "MegaDroneEngine.h"
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std::vector<int> convertJavaArrayToVector(JNIEnv *env, jintArray intArray) {
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std::vector<int> v;
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jsize length = env->GetArrayLength(intArray);
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if (length > 0) {
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jint *elements = env->GetIntArrayElements(intArray, nullptr);
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v.insert(v.end(), &elements[0], &elements[length]);
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// Unpin the memory for the array, or free the copy.
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env->ReleaseIntArrayElements(intArray, elements, 0);
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}
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return v;
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}
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extern "C" {
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/**
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* Start the audio engine
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*
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* @param env
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* @param instance
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* @param jCpuIds - CPU core IDs which the audio process should affine to
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* @return a pointer to the audio engine. This should be passed to other methods
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*/
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JNIEXPORT jlong JNICALL
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Java_com_google_oboe_samples_megadrone_MainActivity_startEngine(JNIEnv *env, jobject /*unused*/,
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jintArray jCpuIds) {
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std::vector<int> cpuIds = convertJavaArrayToVector(env, jCpuIds);
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LOGD("cpu ids size: %d", static_cast<int>(cpuIds.size()));
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MegaDroneEngine *engine = new MegaDroneEngine(std::move(cpuIds));
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if (!engine->start()) {
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LOGE("Failed to start MegaDrone Engine");
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delete engine;
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engine = nullptr;
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} else {
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LOGD("Engine Started");
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}
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return reinterpret_cast<jlong>(engine);
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}
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JNIEXPORT void JNICALL
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Java_com_google_oboe_samples_megadrone_MainActivity_stopEngine(JNIEnv *env, jobject instance,
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jlong jEngineHandle) {
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auto engine = reinterpret_cast<MegaDroneEngine*>(jEngineHandle);
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if (engine) {
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engine->stop();
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delete engine;
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} else {
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LOGD("Engine invalid, call startEngine() to create");
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}
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}
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JNIEXPORT void JNICALL
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Java_com_google_oboe_samples_megadrone_MainActivity_tap(JNIEnv *env, jobject instance,
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jlong jEngineHandle, jboolean isDown) {
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auto *engine = reinterpret_cast<MegaDroneEngine*>(jEngineHandle);
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if (engine) {
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engine->tap(isDown);
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} else {
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LOGE("Engine handle is invalid, call createEngine() to create a new one");
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}
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}
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JNIEXPORT void JNICALL
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Java_com_google_oboe_samples_megadrone_MainActivity_native_1setDefaultStreamValues(JNIEnv *env,
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jclass type,
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jint sampleRate,
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jint framesPerBurst) {
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oboe::DefaultStreamValues::SampleRate = (int32_t) sampleRate;
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oboe::DefaultStreamValues::FramesPerBurst = (int32_t) framesPerBurst;
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}
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} // extern "C"
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