static jint
android_media_SoundPool_native_setup(JNIEnv *env, jobject thiz, jobject weakRef, jint maxChannels, jint streamType, jint srcQuality)
{
ALOGV("android_media_SoundPool_native_setup");
SoundPool *ap = new SoundPool(maxChannels, (audio_stream_type_t) streamType, srcQuality);
if (ap == NULL) {
return -1;
}
// save pointer to SoundPool C++ object in opaque field in Java object
env->SetIntField(thiz, fields.mNativeContext, (int)ap);
// set callback with weak reference
jobject globalWeakRef = env->NewGlobalRef(weakRef);
ap->setCallback(android_media_callback, globalWeakRef);
return 0;
}
static void
android_media_SoundPool_release(JNIEnv *env, jobject thiz)
{
ALOGV("android_media_SoundPool_release");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap != NULL) {
// release weak reference
jobject weakRef = (jobject) ap->getUserData();
if (weakRef != NULL) {
env->DeleteGlobalRef(weakRef);
}
// clear callback and native context
ap->setCallback(NULL, NULL);
env->SetIntField(thiz, fields.mNativeContext, 0);
delete ap;
}
}
static jint
android_media_SoundPool_SoundPoolImpl_native_setup(JNIEnv *env, jobject thiz, jobject weakRef,
jint maxChannels, jobject jaa)
{
if (jaa == 0) {
ALOGE("Error creating SoundPool: invalid audio attributes");
return -1;
}
audio_attributes_t *paa = NULL;
// read the AudioAttributes values
paa = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t));
const jstring jtags =
(jstring) env->GetObjectField(jaa, javaAudioAttrFields.fieldFormattedTags);
const char* tags = env->GetStringUTFChars(jtags, NULL);
// copying array size -1, char array for tags was calloc'd, no need to NULL-terminate it
strncpy(paa->tags, tags, AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1);
env->ReleaseStringUTFChars(jtags, tags);
paa->usage = (audio_usage_t) env->GetIntField(jaa, javaAudioAttrFields.fieldUsage);
paa->content_type =
(audio_content_type_t) env->GetIntField(jaa, javaAudioAttrFields.fieldContentType);
paa->flags = env->GetIntField(jaa, javaAudioAttrFields.fieldFlags);
ALOGV("android_media_SoundPool_SoundPoolImpl_native_setup");
SoundPool *ap = new SoundPool(maxChannels, paa);
if (ap == NULL) {
return -1;
}
// save pointer to SoundPool C++ object in opaque field in Java object
env->SetLongField(thiz, fields.mNativeContext, (jlong) ap);
// set callback with weak reference
jobject globalWeakRef = env->NewGlobalRef(weakRef);
ap->setCallback(android_media_callback, globalWeakRef);
// audio attributes were copied in SoundPool creation
free(paa);
return 0;
}
