From cd9ad696cdc9e7165b64010e213f1deafcce55fd Mon Sep 17 00:00:00 2001
From: Luo Jinghua <sunmoon1997@gmail.com>
Date: Mon, 3 Dec 2012 12:42:09 +0800
Subject: Port the android device to threaded mixer device

---
 src/device_android.cpp | 34 ++++++++++++----------------------
 src/device_android.h   | 10 +++-------
 2 files changed, 15 insertions(+), 29 deletions(-)

diff --git a/src/device_android.cpp b/src/device_android.cpp
index 07a7390..cc21f4e 100644
--- a/src/device_android.cpp
+++ b/src/device_android.cpp
@@ -16,49 +16,39 @@ namespace audiere {
     int ret = AGAudioInit(44100, 2, 16);
     if (ret < 0)
       return 0;
-    return new AndroidAudioDevice(44100, 8192);
+    return new AndroidAudioDevice(44100, 4096);
   }
 
 
   AndroidAudioDevice::AndroidAudioDevice(int rate, int buffer_size)
-    : MixerDevice(rate), m_rate(rate)
+    : ThreadedMixerDevice(rate, buffer_size, 4), m_quit(false)
   {
-    m_buffer_size = buffer_size;
-    m_buffer = new char [buffer_size];
+    start();
   }
 
 
   AndroidAudioDevice::~AndroidAudioDevice() {
     ADR_GUARD("AndroidAudioDevice::~AndroidAudioDevice");
+    m_quit = true;
+    shutdown();
 
     AGAudioSetReadCallback(0, 0);
     AGAudioUninit();
-
-    delete [] m_buffer;
   }
 
 
   void
-  AndroidAudioDevice::writeData() {
-    int           sample_len;
-    size_t        sample_left;
-    char*         sample_buf;
+  AndroidAudioDevice::outputBuffer(const char* buf, int buf_len) {
+    while (AGAudioIsPaused()) {
+      if (m_quit)
+	return;
 
-    sample_buf = m_buffer;
-    sample_len = m_buffer_size / 4;
+      AI_Sleep(20);
+    }
 
-    sample_left = read(sample_len, sample_buf);
-    if (sample_left)
-      AGAudioWrite((void*)sample_buf, sample_left * 4);
+    AGAudioWrite(buf, buf_len);
   }
 
-  void
-  AndroidAudioDevice::update() {
-    if (!AGAudioIsPaused())
-      writeData();
-    else
-      AI_Sleep(10);
-  }
 
   const char* ADR_CALL
   AndroidAudioDevice::getName() {
diff --git a/src/device_android.h b/src/device_android.h
index 2c469ca..9682caf 100644
--- a/src/device_android.h
+++ b/src/device_android.h
@@ -9,7 +9,7 @@
 
 namespace audiere {
 
-  class AndroidAudioDevice : public MixerDevice {
+  class AndroidAudioDevice : public ThreadedMixerDevice {
   public:
     static AndroidAudioDevice* create(const ParameterList& parameters);
 
@@ -18,15 +18,11 @@ namespace audiere {
     ~AndroidAudioDevice();
 
   public:
-    void ADR_CALL update();
+    void ADR_CALL outputBuffer(const char* buf, int buf_len);
     const char* ADR_CALL getName();
 
   private:
-    int m_buffer_size;
-    char* m_buffer;
-    int m_rate;
-
-    void writeData();
+    bool m_quit;
   };
 
 }
-- 
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