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; }