mirror of
https://git.eden-emu.dev/eden-emu/eden.git
synced 2026-08-24 00:10:13 +00:00
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/*
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* Copyright 2019 Google LLC
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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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* https://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 <cassert>
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#include <string>
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#include <functional>
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#include <utility>
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#include <vector>
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#include "DuplexEngine.h"
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#include "effects/Effects.h"
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#include "FunctionList.h"
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// JNI Utility functions and globals
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static DuplexEngine *enginePtr = nullptr;
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// Actual JNI interface
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extern "C" {
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JNIEXPORT void JNICALL
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Java_com_mobileer_androidfxlab_NativeInterface_createAudioEngine(
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JNIEnv,
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jobject /* this */) {
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enginePtr = new DuplexEngine();
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}
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JNIEXPORT void JNICALL
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Java_com_mobileer_androidfxlab_NativeInterface_destroyAudioEngine(
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JNIEnv,
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jobject /* this */) {
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if (!enginePtr) return;
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delete enginePtr;
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enginePtr = nullptr;
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}
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JNIEXPORT jobjectArray JNICALL
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Java_com_mobileer_androidfxlab_NativeInterface_getEffects(JNIEnv *env, jobject) {
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jclass jcl = env->FindClass("com/mobileer/androidfxlab/datatype/EffectDescription");
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jclass jparamcl = env->FindClass("com/mobileer/androidfxlab/datatype/ParamDescription");
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assert (jcl != nullptr && jparamcl != nullptr);
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auto jparamMethodId = env->GetMethodID(jparamcl, "<init>", "(Ljava/lang/String;FFF)V");
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auto jMethodId = env->GetMethodID(jcl, "<init>",
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"(Ljava/lang/String;Ljava/lang/String;I[Lcom/mobileer/androidfxlab/datatype/ParamDescription;)V");
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auto arr = env->NewObjectArray(numEffects, jcl, nullptr);
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auto lambda = [&](auto &arg, int i) {
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const auto ¶mArr = arg.getParams();
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auto jparamArr = env->NewObjectArray(paramArr.size(), jparamcl, nullptr);
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int c = 0;
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for (auto const &elem: paramArr) {
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jobject j = env->NewObject(jparamcl, jparamMethodId,
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env->NewStringUTF(std::string(elem.kName).c_str()),
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elem.kMinVal, elem.kMaxVal, elem.kDefVal);
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assert(j != nullptr);
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env->SetObjectArrayElement(jparamArr, c++, j);
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}
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jobject j = env->NewObject(jcl, jMethodId,
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env->NewStringUTF(std::string(arg.getName()).c_str()),
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env->NewStringUTF(std::string(arg.getCategory()).c_str()),
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i, jparamArr);
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assert(j != nullptr);
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env->SetObjectArrayElement(arr, i, j);
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};
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int i = 0;
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std::apply([&i, &lambda](auto &&... args) mutable { ((lambda(args, i++)), ...); },
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EffectsTuple);
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return arr;
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}
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JNIEXPORT void JNICALL
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Java_com_mobileer_androidfxlab_NativeInterface_addDefaultEffectNative(JNIEnv *, jobject, jint jid) {
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if (!enginePtr) return;
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auto id = static_cast<int>(jid);
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std::visit([id](auto &&stack) {
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std::function<void(decltype(stack.getType()), decltype(stack.getType()))> f;
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int i = 0;
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std::apply([id, &f, &i](auto &&... args) mutable {
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((f = (i++ == id) ?
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args.template buildDefaultEffect<decltype(stack.getType())>() : f), ...);
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}, EffectsTuple);
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stack.addEffect(std::move(f));
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}, enginePtr->functionList);
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}
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JNIEXPORT void JNICALL
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Java_com_mobileer_androidfxlab_NativeInterface_removeEffectNative(JNIEnv *, jobject, jint jind) {
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if (!enginePtr) return;
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auto ind = static_cast<size_t>(jind);
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std::visit([ind](auto &&arg) {
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arg.removeEffectAt(ind);
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}, enginePtr->functionList);
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}
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JNIEXPORT void JNICALL
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Java_com_mobileer_androidfxlab_NativeInterface_rotateEffectNative(JNIEnv *, jobject,
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jint jfrom, jint jto) {
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if (!enginePtr) return;
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auto from = static_cast<size_t>(jfrom);
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auto to = static_cast<size_t>(jto);
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std::visit([from, to](auto &&arg) {
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arg.rotateEffectAt(from, to);
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}, enginePtr->functionList);
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}
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JNIEXPORT void JNICALL
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Java_com_mobileer_androidfxlab_NativeInterface_modifyEffectNative(
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JNIEnv *env, jobject, jint jid, jint jindex, jfloatArray params) {
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if (!enginePtr) return;
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int id = static_cast<int>(jid);
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int index = static_cast<size_t>(jindex);
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jfloat *data = env->GetFloatArrayElements(params, nullptr);
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std::vector<float> arr{data, data + env->GetArrayLength(params)};
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env->ReleaseFloatArrayElements(params, data, 0);
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std::visit([&arr, &id, &index](auto &&stack) {
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std::function<void(decltype(stack.getType()), decltype(stack.getType()))> ef;
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int i = 0;
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std::apply([&](auto &&... args) mutable {
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((ef = (i++ == id) ?
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args.modifyEffectVec(ef, arr) : ef), ...);
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}, EffectsTuple);
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stack.modifyEffectAt(index, std::move(ef));
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}, enginePtr->functionList);
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}
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JNIEXPORT void JNICALL
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Java_com_mobileer_androidfxlab_NativeInterface_enableEffectNative(
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JNIEnv *, jobject, jint jindex, jboolean jenable) {
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if (!enginePtr) return;
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auto ind = static_cast<size_t>(jindex);
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auto enable = static_cast<bool>(jenable);
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std::visit([ind, enable](auto &&args) {
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args.enableEffectAt(ind, enable);
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}, enginePtr->functionList);
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}
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JNIEXPORT void JNICALL
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Java_com_mobileer_androidfxlab_NativeInterface_enablePassthroughNative(
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JNIEnv *, jobject, jboolean jenable) {
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if (!enginePtr) return;
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std::visit([enable = static_cast<bool>(jenable)](auto &&args) {
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args.mute(!enable);
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}, enginePtr->functionList);
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}
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} //extern C
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