1 files changed, 66 insertions, 0 deletions
diff --git a/media/libmedia/SoundPoolThread.h b/media/libmedia/SoundPoolThread.h
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+++ b/media/libmedia/SoundPoolThread.h
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+/*
+ * Copyright (C) 2007 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.
+ */
+
+#ifndef SOUNDPOOLTHREAD_H_
+#define SOUNDPOOLTHREAD_H_
+
+#include <utils/threads.h>
+#include <utils/Vector.h>
+#include <media/AudioTrack.h>
+
+#include "SoundPool.h"
+
+namespace android {
+
+class SoundPoolMsg {
+public:
+    enum MessageType { INVALID, KILL, LOAD_SAMPLE };
+    SoundPoolMsg() : mMessageType(INVALID), mData(0) {}
+    SoundPoolMsg(MessageType MessageType, int data) :
+        mMessageType(MessageType), mData(data) {}
+    uint16_t         mMessageType;
+    uint16_t         mData;
+};
+
+/*
+ * This class handles background requests from the SoundPool
+ */
+class SoundPoolThread {
+public:
+    SoundPoolThread(SoundPool* SoundPool);
+    ~SoundPoolThread();
+    void loadSample(int sampleID);
+    void quit();
+    void write(SoundPoolMsg msg);
+
+private:
+    static const size_t maxMessages = 5;
+
+    static int beginThread(void* arg);
+    int run();
+    void doLoadSample(int sampleID);
+    const SoundPoolMsg read();
+
+    Mutex                   mLock;
+    Condition               mCondition;
+    Vector<SoundPoolMsg>    mMsgQueue;
+    SoundPool*              mSoundPool;
+    bool                    mRunning;
+};
+
+} // end namespace android
+
+#endif /*SOUNDPOOLTHREAD_H_*/