Pulse audio empty struct implementation. Working on it though

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4428 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/AudioCommon/Src/PulseAudioStream.cpp

@@ -0,0 +1,88 @@
+// Copyright (C) 2003 Dolphin Project.
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 2.0.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+
+#include "Common.h"
+#include "Thread.h"
+
+#include "PulseAudioStream.h"
+
+#define BUFFER_SIZE 4096
+#define BUFFER_SIZE_BYTES (BUFFER_SIZE*2*2)
+
+PulseAudio::PulseAudio(CMixer *mixer) : SoundStream(mixer), thread_data(0), handle(NULL)
+{
+	mix_buffer = new u8[BUFFER_SIZE_BYTES];
+}
+
+PulseAudio::~PulseAudio()
+{
+	delete [] mix_buffer;
+}
+
+static void *ThreadTrampoline(void *args)
+{
+	reinterpret_cast<PulseAudio *>(args)->SoundLoop();
+	return NULL;
+}
+
+bool PulseAudio::Start()
+{
+	thread = new Common::Thread(&ThreadTrampoline, this);
+	thread_data = 0;
+	return true;
+}
+
+void PulseAudio::Stop()
+{
+	thread_data = 1;
+	delete thread;
+	thread = NULL;
+}
+
+void PulseAudio::Update()
+{
+	// don't need to do anything here.
+}
+
+// Called on audio thread.
+void PulseAudio::SoundLoop()
+{
+	PulseInit();
+	while (!thread_data)
+	{
+		int frames_to_deliver = 512;
+		m_mixer->Mix(reinterpret_cast<short *>(mix_buffer), frames_to_deliver);
+	}
+	PulseShutdown();
+	thread_data = 2;
+}
+
+bool PulseAudio::PulseInit()
+{
+	NOTICE_LOG(AUDIO, "Pulse successfully initialized.\n");
+	return true;
+}
+
+void PulseAudio::PulseShutdown()
+{
+	if (handle != NULL)
+	{
+
+		handle = NULL;
+	}
+}
+