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/*
**
** Copyright 2008, 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.
*/
#define LOG_TAG "ToneGenerator"
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <jni.h>
#include <JNIHelp.h>
#include "core_jni_helpers.h"
#include <utils/Log.h>
#include <media/AudioSystem.h>
#include <media/ToneGenerator.h>
// ----------------------------------------------------------------------------
using namespace android;
struct fields_t {
jfieldID context;
};
static fields_t fields;
static jboolean android_media_ToneGenerator_startTone(JNIEnv *env, jobject thiz, jint toneType, jint durationMs) {
ALOGV("android_media_ToneGenerator_startTone: %p", thiz);
ToneGenerator *lpToneGen = (ToneGenerator *)env->GetLongField(thiz,
fields.context);
if (lpToneGen == NULL) {
jniThrowRuntimeException(env, "Method called after release()");
return false;
}
return lpToneGen->startTone((ToneGenerator::tone_type) toneType, durationMs);
}
static void android_media_ToneGenerator_stopTone(JNIEnv *env, jobject thiz) {
ALOGV("android_media_ToneGenerator_stopTone: %p", thiz);
ToneGenerator *lpToneGen = (ToneGenerator *)env->GetLongField(thiz,
fields.context);
ALOGV("ToneGenerator lpToneGen: %p", lpToneGen);
if (lpToneGen == NULL) {
jniThrowRuntimeException(env, "Method called after release()");
return;
}
lpToneGen->stopTone();
}
static jint android_media_ToneGenerator_getAudioSessionId(JNIEnv *env, jobject thiz) {
ToneGenerator *lpToneGen = (ToneGenerator *)env->GetLongField(thiz,
fields.context);
if (lpToneGen == NULL) {
jniThrowRuntimeException(env, "Method called after release()");
return 0;
}
return lpToneGen->getSessionId();
}
static void android_media_ToneGenerator_release(JNIEnv *env, jobject thiz) {
ToneGenerator *lpToneGen = (ToneGenerator *)env->GetLongField(thiz,
fields.context);
ALOGV("android_media_ToneGenerator_release lpToneGen: %p", lpToneGen);
env->SetLongField(thiz, fields.context, 0);
delete lpToneGen;
}
static void android_media_ToneGenerator_native_setup(JNIEnv *env, jobject thiz,
jint streamType, jint volume) {
ToneGenerator *lpToneGen = new ToneGenerator((audio_stream_type_t) streamType, AudioSystem::linearToLog(volume), true);
env->SetLongField(thiz, fields.context, 0);
ALOGV("android_media_ToneGenerator_native_setup jobject: %p", thiz);
ALOGV("ToneGenerator lpToneGen: %p", lpToneGen);
if (!lpToneGen->isInited()) {
ALOGE("ToneGenerator init failed");
jniThrowRuntimeException(env, "Init failed");
delete lpToneGen;
return;
}
// Stow our new C++ ToneGenerator in an opaque field in the Java object.
env->SetLongField(thiz, fields.context, (jlong)lpToneGen);
ALOGV("ToneGenerator fields.context: %p", (void*) env->GetLongField(thiz, fields.context));
}
static void android_media_ToneGenerator_native_finalize(JNIEnv *env,
jobject thiz) {
ALOGV("android_media_ToneGenerator_native_finalize jobject: %p", thiz);
ToneGenerator *lpToneGen = (ToneGenerator *)env->GetLongField(thiz,
fields.context);
if (lpToneGen != NULL) {
ALOGV("delete lpToneGen: %p", lpToneGen);
delete lpToneGen;
}
}
// ----------------------------------------------------------------------------
static JNINativeMethod gMethods[] = {
{ "startTone", "(II)Z", (void *)android_media_ToneGenerator_startTone },
{ "stopTone", "()V", (void *)android_media_ToneGenerator_stopTone },
{ "getAudioSessionId", "()I", (void *)android_media_ToneGenerator_getAudioSessionId},
{ "release", "()V", (void *)android_media_ToneGenerator_release },
{ "native_setup", "(II)V", (void *)android_media_ToneGenerator_native_setup },
{ "native_finalize", "()V", (void *)android_media_ToneGenerator_native_finalize }
};
int register_android_media_ToneGenerator(JNIEnv *env) {
jclass clazz = FindClassOrDie(env, "android/media/ToneGenerator");
fields.context = GetFieldIDOrDie(env, clazz, "mNativeContext", "J");
ALOGV("register_android_media_ToneGenerator ToneGenerator fields.context: %p", fields.context);
return RegisterMethodsOrDie(env, "android/media/ToneGenerator", gMethods, NELEM(gMethods));
}
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