skyline/app/src/main/cpp/emu_jni.cpp
Billy Laws 1bb979a7e1 Introduce new loader JNI for parsing application data and port Kotlin
code to use it

This will help ease the process of implementing new formats in the
future and remove duplicated code.
2020-06-20 20:26:53 +00:00

89 lines
3.2 KiB
C++

// SPDX-License-Identifier: MPL-2.0
// Copyright © 2020 Skyline Team and Contributors (https://github.com/skyline-emu/)
#include <csignal>
#include <unistd.h>
#include "skyline/loader/loader.h"
#include "skyline/common.h"
#include "skyline/os.h"
#include "skyline/jvm.h"
bool Halt;
jobject Surface;
uint FaultCount;
skyline::GroupMutex JniMtx;
skyline::u16 fps;
skyline::u32 frametime;
void signalHandler(int signal) {
syslog(LOG_ERR, "Halting program due to signal: %s", strsignal(signal));
if (FaultCount > 2)
exit(SIGKILL);
else
Halt = true;
FaultCount++;
}
extern "C" JNIEXPORT void Java_emu_skyline_EmulationActivity_executeApplication(JNIEnv *env, jobject instance, jstring romUriJstring, jint romType, jint romFd, jint preferenceFd, jint logFd) {
Halt = false;
FaultCount = 0;
fps = 0;
frametime = 0;
std::signal(SIGTERM, signalHandler);
std::signal(SIGSEGV, signalHandler);
std::signal(SIGINT, signalHandler);
std::signal(SIGILL, signalHandler);
std::signal(SIGABRT, signalHandler);
std::signal(SIGFPE, signalHandler);
setpriority(PRIO_PROCESS, static_cast<id_t>(gettid()), -8); // Set the priority of this process to the highest value
auto jvmManager = std::make_shared<skyline::JvmManager>(env, instance);
auto settings = std::make_shared<skyline::Settings>(preferenceFd);
auto logger = std::make_shared<skyline::Logger>(logFd, static_cast<skyline::Logger::LogLevel>(std::stoi(settings->GetString("log_level"))));
//settings->List(logger); // (Uncomment when you want to print out all settings strings)
auto start = std::chrono::steady_clock::now();
try {
skyline::kernel::OS os(jvmManager, logger, settings);
auto romUri = env->GetStringUTFChars(romUriJstring, nullptr);
logger->Info("Launching ROM {}", romUri);
env->ReleaseStringUTFChars(romUriJstring, romUri);
os.Execute(romFd, static_cast<skyline::loader::RomFormat>(romType));
} catch (std::exception &e) {
logger->Error(e.what());
} catch (...) {
logger->Error("An unknown exception has occurred");
}
logger->Info("Emulation has ended");
auto end = std::chrono::steady_clock::now();
logger->Info("Done in: {} ms", (std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count()));
}
extern "C" JNIEXPORT void Java_emu_skyline_EmulationActivity_setHalt(JNIEnv *env, jobject instance, jboolean halt) {
JniMtx.lock(skyline::GroupMutex::Group::Group2);
Halt = halt;
JniMtx.unlock();
}
extern "C" JNIEXPORT void Java_emu_skyline_EmulationActivity_setSurface(JNIEnv *env, jobject instance, jobject surface) {
JniMtx.lock(skyline::GroupMutex::Group::Group2);
if (!env->IsSameObject(Surface, nullptr))
env->DeleteGlobalRef(Surface);
if (!env->IsSameObject(surface, nullptr))
Surface = env->NewGlobalRef(surface);
else
Surface = surface;
JniMtx.unlock();
}
extern "C" JNIEXPORT jint Java_emu_skyline_EmulationActivity_getFps(JNIEnv *env, jobject thiz) {
return fps;
}
extern "C" JNIEXPORT jfloat Java_emu_skyline_EmulationActivity_getFrametime(JNIEnv *env, jobject thiz) {
return static_cast<float>(frametime) / 100;
}