1 files changed, 114 insertions, 0 deletions
diff --git a/media/libmedia/SoundPoolThread.cpp b/media/libmedia/SoundPoolThread.cpp
new file mode 100644
index 0000000..ba3b482
--- /dev/null
+++ b/media/libmedia/SoundPoolThread.cpp
@@ -0,0 +1,114 @@
+/*
+ * 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.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "SoundPoolThread"
+#include "utils/Log.h"
+
+#include "SoundPoolThread.h"
+
+namespace android {
+
+void SoundPoolThread::write(SoundPoolMsg msg) {
+    Mutex::Autolock lock(&mLock);
+    while (mMsgQueue.size() >= maxMessages) {
+        mCondition.wait(mLock);
+    }
+
+    // if thread is quitting, don't add to queue
+    if (mRunning) {
+        mMsgQueue.push(msg);
+        mCondition.signal();
+    }
+}
+
+const SoundPoolMsg SoundPoolThread::read() {
+    Mutex::Autolock lock(&mLock);
+    while (mMsgQueue.size() == 0) {
+        mCondition.wait(mLock);
+    }
+    SoundPoolMsg msg = mMsgQueue[0];
+    mMsgQueue.removeAt(0);
+    mCondition.signal();
+    return msg;
+}
+
+void SoundPoolThread::quit() {
+    Mutex::Autolock lock(&mLock);
+    if (mRunning) {
+        mRunning = false;
+        mMsgQueue.clear();
+        mMsgQueue.push(SoundPoolMsg(SoundPoolMsg::KILL, 0));
+        mCondition.signal();
+        mCondition.wait(mLock);
+    }
+    ALOGV("return from quit");
+}
+
+SoundPoolThread::SoundPoolThread(SoundPool* soundPool) :
+    mSoundPool(soundPool)
+{
+    mMsgQueue.setCapacity(maxMessages);
+    if (createThreadEtc(beginThread, this, "SoundPoolThread")) {
+        mRunning = true;
+    }
+}
+
+SoundPoolThread::~SoundPoolThread()
+{
+    quit();
+}
+
+int SoundPoolThread::beginThread(void* arg) {
+    ALOGV("beginThread");
+    SoundPoolThread* soundPoolThread = (SoundPoolThread*)arg;
+    return soundPoolThread->run();
+}
+
+int SoundPoolThread::run() {
+    ALOGV("run");
+    for (;;) {
+        SoundPoolMsg msg = read();
+        ALOGV("Got message m=%d, mData=%d", msg.mMessageType, msg.mData);
+        switch (msg.mMessageType) {
+        case SoundPoolMsg::KILL:
+            ALOGV("goodbye");
+            return NO_ERROR;
+        case SoundPoolMsg::LOAD_SAMPLE:
+            doLoadSample(msg.mData);
+            break;
+        default:
+            ALOGW("run: Unrecognized message %d\n",
+                    msg.mMessageType);
+            break;
+        }
+    }
+}
+
+void SoundPoolThread::loadSample(int sampleID) {
+    write(SoundPoolMsg(SoundPoolMsg::LOAD_SAMPLE, sampleID));
+}
+
+void SoundPoolThread::doLoadSample(int sampleID) {
+    sp <Sample> sample = mSoundPool->findSample(sampleID);
+    status_t status = -1;
+    if (sample != 0) {
+        status = sample->doLoad();
+    }
+    mSoundPool->notify(SoundPoolEvent(SoundPoolEvent::SAMPLE_LOADED, sampleID, status));
+}
+
+} // end namespace android