/*
* Copyright (C) 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.
*/
#include <stdio.h>
//#define LOG_NDEBUG 0
#define LOG_TAG "SoundPool-JNI"
#include <utils/Log.h>
#include <nativehelper/jni.h>
#include <nativehelper/JNIHelp.h>
#include <android_runtime/AndroidRuntime.h>
#include "SoundPool.h"
using namespace android;
static struct fields_t {
jfieldID mNativeContext;
jmethodID mPostEvent;
jclass mSoundPoolClass;
} fields;
static inline SoundPool* MusterSoundPool(JNIEnv *env, jobject thiz) {
return (SoundPool*)env->GetIntField(thiz, fields.mNativeContext);
}
// ----------------------------------------------------------------------------
static int
android_media_SoundPool_load_URL(JNIEnv *env, jobject thiz, jstring path, jint priority)
{
LOGV("android_media_SoundPool_load_URL");
SoundPool *ap = MusterSoundPool(env, thiz);
if (path == NULL) {
jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
return 0;
}
const char* s = env->GetStringUTFChars(path, NULL);
int id = ap->load(s, priority);
env->ReleaseStringUTFChars(path, s);
return id;
}
static int
android_media_SoundPool_load_FD(JNIEnv *env, jobject thiz, jobject fileDescriptor,
jlong offset, jlong length, jint priority)
{
LOGV("android_media_SoundPool_load_FD");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap == NULL) return 0;
return ap->load(jniGetFDFromFileDescriptor(env, fileDescriptor),
int64_t(offset), int64_t(length), int(priority));
}
static bool
android_media_SoundPool_unload(JNIEnv *env, jobject thiz, jint sampleID) {
LOGV("android_media_SoundPool_unload\n");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap == NULL) return 0;
return ap->unload(sampleID);
}
static int
android_media_SoundPool_play(JNIEnv *env, jobject thiz, jint sampleID,
jfloat leftVolume, jfloat rightVolume, jint priority, jint loop,
jfloat rate)
{
LOGV("android_media_SoundPool_play\n");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap == NULL) return 0;
return ap->play(sampleID, leftVolume, rightVolume, priority, loop, rate);
}
static void
android_media_SoundPool_pause(JNIEnv *env, jobject thiz, jint channelID)
{
LOGV("android_media_SoundPool_pause");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap == NULL) return;
ap->pause(channelID);
}
static void
android_media_SoundPool_resume(JNIEnv *env, jobject thiz, jint channelID)
{
LOGV("android_media_SoundPool_resume");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap == NULL) return;
ap->resume(channelID);
}
static void
android_media_SoundPool_autoPause(JNIEnv *env, jobject thiz)
{
LOGV("android_media_SoundPool_autoPause");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap == NULL) return;
ap->autoPause();
}
static void
android_media_SoundPool_autoResume(JNIEnv *env, jobject thiz)
{
LOGV("android_media_SoundPool_autoResume");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap == NULL) return;
ap->autoResume();
}
static void
android_media_SoundPool_stop(JNIEnv *env, jobject thiz, jint channelID)
{
LOGV("android_media_SoundPool_stop");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap == NULL) return;
ap->stop(channelID);
}
static void
android_media_SoundPool_setVolume(JNIEnv *env, jobject thiz, jint channelID,
float leftVolume, float rightVolume)
{
LOGV("android_media_SoundPool_setVolume");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap == NULL) return;
ap->setVolume(channelID, leftVolume, rightVolume);
}
static void
android_media_SoundPool_setPriority(JNIEnv *env, jobject thiz, jint channelID,
int priority)
{
LOGV("android_media_SoundPool_setPriority");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap == NULL) return;
ap->setPriority(channelID, priority);
}
static void
android_media_SoundPool_setLoop(JNIEnv *env, jobject thiz, jint channelID,
int loop)
{
LOGV("android_media_SoundPool_setLoop");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap == NULL) return;
ap->setLoop(channelID, loop);
}
static void
android_media_SoundPool_setRate(JNIEnv *env, jobject thiz, jint channelID,
float rate)
{
LOGV("android_media_SoundPool_setRate");
SoundPool *ap = MusterSoundPool(env, thiz);
if (ap == NULL) return;
ap->setRate(channelID, rate);
}
static void android_media_callback(SoundPoolEvent event, SoundPool* soundPool, void* user)
{
LOGV("callback: (%d, %d, %d, %p, %p)", event.mMsg, event.mArg1, event.mArg2, soundPool, user);
JNIEnv *env = AndroidRuntime::getJNIEnv();
env->CallStaticVoidMethod(fields.mSoundPoolClass, fields.mPostEvent, user, event.mMsg, event.mArg1, event.mArg2, NULL);
}
static jint
android_media_SoundPool_native_setup(JNIEnv *env, jobject thiz, jobject weakRef, jint maxChannels, jint streamType, jint srcQuality)
{
LOGV("android_media_SoundPool_native_setup");
SoundPool *ap = new SoundPool(maxChannels, 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)
{
LOGV("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;
}
}
// ----------------------------------------------------------------------------
// Dalvik VM type signatures
static JNINativeMethod gMethods[] = {
{ "_load",
"(Ljava/lang/String;I)I",
(void *)android_media_SoundPool_load_URL
},
{ "_load",
"(Ljava/io/FileDescriptor;JJI)I",
(void *)android_media_SoundPool_load_FD
},
{ "unload",
"(I)Z",
(void *)android_media_SoundPool_unload
},
{ "play",
"(IFFIIF)I",
(void *)android_media_SoundPool_play
},
{ "pause",
"(I)V",
(void *)android_media_SoundPool_pause
},
{ "resume",
"(I)V",
(void *)android_media_SoundPool_resume
},
{ "autoPause",
"()V",
(void *)android_media_SoundPool_autoPause
},
{ "autoResume",
"()V",
(void *)android_media_SoundPool_autoResume
},
{ "stop",
"(I)V",
(void *)android_media_SoundPool_stop
},
{ "setVolume",
"(IFF)V",
(void *)android_media_SoundPool_setVolume
},
{ "setPriority",
"(II)V",
(void *)android_media_SoundPool_setPriority
},
{ "setLoop",
"(II)V",
(void *)android_media_SoundPool_setLoop
},
{ "setRate",
"(IF)V",
(void *)android_media_SoundPool_setRate
},
{ "native_setup",
"(Ljava/lang/Object;III)I",
(void*)android_media_SoundPool_native_setup
},
{ "release",
"()V",
(void*)android_media_SoundPool_release
}
};
static const char* const kClassPathName = "android/media/SoundPool";
jint JNI_OnLoad(JavaVM* vm, void* reserved)
{
JNIEnv* env = NULL;
jint result = -1;
jclass clazz;
if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {
LOGE("ERROR: GetEnv failed\n");
goto bail;
}
assert(env != NULL);
clazz = env->FindClass(kClassPathName);
if (clazz == NULL) {
LOGE("Can't find %s", kClassPathName);
goto bail;
}
fields.mNativeContext = env->GetFieldID(clazz, "mNativeContext", "I");
if (fields.mNativeContext == NULL) {
LOGE("Can't find SoundPool.mNativeContext");
goto bail;
}
fields.mPostEvent = env->GetStaticMethodID(clazz, "postEventFromNative",
"(Ljava/lang/Object;IIILjava/lang/Object;)V");
if (fields.mPostEvent == NULL) {
LOGE("Can't find android/media/SoundPool.postEventFromNative");
goto bail;
}
// create a reference to class. Technically, we're leaking this reference
// since it's a static object.
fields.mSoundPoolClass = (jclass) env->NewGlobalRef(clazz);
if (AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods)) < 0)
goto bail;
/* success -- return valid version number */
result = JNI_VERSION_1_4;
bail:
return result;
}