moonlight-android/app/src/main/jni/moonlight-core/simplejni.c

#include <Limelight.h>

#include <jni.h>
#include <android/log.h>

#include <arpa/inet.h>
#include <string.h>

JNIEXPORT void JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_sendMouseMove(JNIEnv *env, jclass clazz, jshort deltaX, jshort deltaY) {
    LiSendMouseMoveEvent(deltaX, deltaY);
}

JNIEXPORT void JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_sendMousePosition(JNIEnv *env, jclass clazz,
        jshort x, jshort y, jshort referenceWidth, jshort referenceHeight) {
    LiSendMousePositionEvent(x, y, referenceWidth, referenceHeight);
}

JNIEXPORT void JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_sendMouseMoveAsMousePosition(JNIEnv *env, jclass clazz,
        jshort deltaX, jshort deltaY, jshort referenceWidth, jshort referenceHeight) {
    LiSendMouseMoveAsMousePositionEvent(deltaX, deltaY, referenceWidth, referenceHeight);
}

JNIEXPORT void JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_sendMouseButton(JNIEnv *env, jclass clazz, jbyte buttonEvent, jbyte mouseButton) {
    LiSendMouseButtonEvent(buttonEvent, mouseButton);
}

JNIEXPORT void JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_sendMultiControllerInput(JNIEnv *env, jclass clazz, jshort controllerNumber,
                                                           jshort activeGamepadMask, jshort buttonFlags,
                                                           jbyte leftTrigger, jbyte rightTrigger,
                                                           jshort leftStickX, jshort leftStickY,
                                                           jshort rightStickX, jshort rightStickY) {
    LiSendMultiControllerEvent(controllerNumber, activeGamepadMask, buttonFlags,
        leftTrigger, rightTrigger, leftStickX, leftStickY, rightStickX, rightStickY);
}

JNIEXPORT void JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_sendControllerInput(JNIEnv *env, jclass clazz, jshort buttonFlags,
                                                      jbyte leftTrigger, jbyte rightTrigger,
                                                      jshort leftStickX, jshort leftStickY,
                                                      jshort rightStickX, jshort rightStickY) {
    LiSendControllerEvent(buttonFlags, leftTrigger, rightTrigger, leftStickX, leftStickY, rightStickX, rightStickY);
}

JNIEXPORT void JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_sendKeyboardInput(JNIEnv *env, jclass clazz, jshort keyCode, jbyte keyAction, jbyte modifiers) {
    LiSendKeyboardEvent(keyCode, keyAction, modifiers);
}

JNIEXPORT void JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_sendMouseScroll(JNIEnv *env, jclass clazz, jbyte scrollClicks) {
    LiSendScrollEvent(scrollClicks);
}

JNIEXPORT void JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_sendMouseHighResScroll(JNIEnv *env, jclass clazz, jshort scrollAmount) {
    LiSendHighResScrollEvent(scrollAmount);
}

JNIEXPORT void JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_sendUtf8Text(JNIEnv *env, jclass clazz, jstring text) {
    const char* utf8Text = (*env)->GetStringUTFChars(env, text, NULL);
    LiSendUtf8TextEvent(utf8Text, strlen(utf8Text));
    (*env)->ReleaseStringUTFChars(env, text, utf8Text);
}

JNIEXPORT void JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_stopConnection(JNIEnv *env, jclass clazz) {
    LiStopConnection();
}

JNIEXPORT void JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_interruptConnection(JNIEnv *env, jclass clazz) {
    LiInterruptConnection();
}

JNIEXPORT jstring JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_getStageName(JNIEnv *env, jclass clazz, jint stage) {
    return (*env)->NewStringUTF(env, LiGetStageName(stage));
}

JNIEXPORT jstring JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_findExternalAddressIP4(JNIEnv *env, jclass clazz, jstring stunHostName, jint stunPort) {
    int err;
    struct in_addr wanAddr;
    const char* stunHostNameStr = (*env)->GetStringUTFChars(env, stunHostName, NULL);

    err = LiFindExternalAddressIP4(stunHostNameStr, stunPort, &wanAddr.s_addr);
    (*env)->ReleaseStringUTFChars(env, stunHostName, stunHostNameStr);

    if (err == 0) {
        char addrStr[INET_ADDRSTRLEN];

        inet_ntop(AF_INET, &wanAddr, addrStr, sizeof(addrStr));

        __android_log_print(ANDROID_LOG_INFO, "moonlight-common-c", "Resolved WAN address to %s", addrStr);

        return (*env)->NewStringUTF(env, addrStr);
    }
    else {
        __android_log_print(ANDROID_LOG_ERROR, "moonlight-common-c", "STUN failed to get WAN address: %d", err);
        return NULL;
    }
}

JNIEXPORT jint JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_getPendingAudioDuration(JNIEnv *env, jclass clazz) {
    return LiGetPendingAudioDuration();
}

JNIEXPORT jint JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_getPendingVideoFrames(JNIEnv *env, jclass clazz) {
    return LiGetPendingVideoFrames();
}

JNIEXPORT jint JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_testClientConnectivity(JNIEnv *env, jclass clazz, jstring testServerHostName, jint referencePort, jint testFlags) {
    int ret;
    const char* testServerHostNameStr = (*env)->GetStringUTFChars(env, testServerHostName, NULL);

    ret = LiTestClientConnectivity(testServerHostNameStr, (unsigned short)referencePort, testFlags);

    (*env)->ReleaseStringUTFChars(env, testServerHostName, testServerHostNameStr);

    return ret;
}

JNIEXPORT jint JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_getPortFlagsFromStage(JNIEnv *env, jclass clazz, jint stage) {
    return LiGetPortFlagsFromStage(stage);
}

JNIEXPORT jint JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_getPortFlagsFromTerminationErrorCode(JNIEnv *env, jclass clazz, jint errorCode) {
    return LiGetPortFlagsFromTerminationErrorCode(errorCode);
}

JNIEXPORT jstring JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_stringifyPortFlags(JNIEnv *env, jclass clazz, jint portFlags, jstring separator) {
    const char* separatorStr = (*env)->GetStringUTFChars(env, separator, NULL);
    char outputBuffer[512];

    LiStringifyPortFlags(portFlags, separatorStr, outputBuffer, sizeof(outputBuffer));

    (*env)->ReleaseStringUTFChars(env, separator, separatorStr);
    return (*env)->NewStringUTF(env, outputBuffer);
}

JNIEXPORT jlong JNICALL
Java_com_limelight_nvstream_jni_MoonBridge_getEstimatedRttInfo(JNIEnv *env, jclass clazz) {
    uint32_t rtt, variance;

    if (!LiGetEstimatedRttInfo(&rtt, &variance)) {
        return -1;
    }

    return ((uint64_t)rtt << 32U) | variance;
}