GODOT IS OPEN SOURCE

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diff --git a/servers/audio/audio_server_sw.h b/servers/audio/audio_server_sw.h
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+/*************************************************************************/
+/*  audio_server_sw.h                                                    */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#ifndef AUDIO_SERVER_SW_H
+#define AUDIO_SERVER_SW_H
+
+#include "servers/audio_server.h"
+#include "servers/audio/audio_mixer_sw.h"
+#include "servers/audio/voice_rb_sw.h"
+#include "self_list.h"
+#include "os/thread_safe.h"
+#include "os/thread.h"
+class AudioServerSW : public AudioServer {
+
+	OBJ_TYPE( AudioServerSW, AudioServer );
+
+	_THREAD_SAFE_CLASS_
+
+	enum {
+		INTERNAL_BUFFER_SIZE=4096,
+		STREAM_SCALE_BITS=12
+
+	};
+
+	SampleManagerSW *sample_manager;
+	AudioMixerSW *mixer;
+
+	virtual AudioMixer *get_mixer();
+	virtual void audio_mixer_chunk_callback(int p_frames);
+
+	struct Voice {
+
+		float volume;
+		volatile bool active;
+		SelfList<Voice> active_item;
+		AudioMixer::ChannelID channel;
+
+
+		Voice () : active_item(this) { channel=AudioMixer::INVALID_CHANNEL; active=false;}
+	};
+
+	mutable RID_Owner<Voice> voice_owner;
+	SelfList<Voice>::List active_list;
+
+	struct Stream {
+		bool active;		
+		List<Stream*>::Element *E;
+		AudioStream *audio_stream;
+		EventStream *event_stream;
+		float volume_scale;
+	};
+
+	List<Stream*> active_audio_streams;
+
+	//List<Stream*> event_streams;
+
+	int32_t * internal_buffer;
+	int internal_buffer_channels;
+	int32_t * stream_buffer;
+
+	mutable RID_Owner<Stream> stream_owner;
+
+	float stream_volume;
+	float stream_volume_scale;
+	float fx_volume_scale;
+	float event_voice_volume_scale;
+	float peak_left,peak_right;
+	uint32_t max_peak;
+
+	VoiceRBSW voice_rb;
+
+	bool exit_update_thread;
+	Thread *thread;
+	static void _thread_func(void *self);
+
+	void _update_streams(bool p_thread);
+	void driver_process_chunk(int p_frames,int32_t *p_buffer);
+
+	AudioMixerSW::InterpolationType mixer_interp;
+	bool mixer_use_fx;
+	uint64_t mixer_step_usecs;
+
+	static void _mixer_callback(void *p_udata);
+friend class AudioDriverSW;
+	void driver_process(int p_frames,int32_t *p_buffer);
+public:
+
+
+	/* SAMPLE API */
+
+	virtual RID sample_create(SampleFormat p_format, bool p_stereo, int p_length);
+
+	virtual void sample_set_description(RID p_sample, const String& p_description);
+	virtual String sample_get_description(RID p_sample, const String& p_description) const;
+
+	virtual SampleFormat sample_get_format(RID p_sample) const;
+	virtual bool sample_is_stereo(RID p_sample) const;
+	virtual int sample_get_length(RID p_sample) const;
+	const void* sample_get_data_ptr(RID p_sample) const;
+
+	virtual void sample_set_data(RID p_sample, const DVector<uint8_t>& p_buffer);
+	virtual const DVector<uint8_t> sample_get_data(RID p_sample) const;
+
+	virtual void sample_set_mix_rate(RID p_sample,int p_rate);
+	virtual int sample_get_mix_rate(RID p_sample) const;
+
+	virtual void sample_set_loop_format(RID p_sample,SampleLoopFormat p_format);
+	virtual SampleLoopFormat sample_get_loop_format(RID p_sample) const;
+
+	virtual void sample_set_loop_begin(RID p_sample,int p_pos);
+	virtual int sample_get_loop_begin(RID p_sample) const;
+
+	virtual void sample_set_loop_end(RID p_sample,int p_pos);
+	virtual int sample_get_loop_end(RID p_sample) const;
+
+	/* VOICE API */
+
+	virtual RID voice_create();
+
+	virtual void voice_play(RID p_voice, RID p_sample);
+
+	virtual void voice_set_volume(RID p_voice, float p_db);
+	virtual void voice_set_pan(RID p_voice, float p_pan, float p_depth=0,float height=0); //pan and depth go from -1 to 1
+	virtual void voice_set_filter(RID p_voice, FilterType p_type, float p_cutoff, float p_resonance,float p_gain=0);
+	virtual void voice_set_chorus(RID p_voice, float p_chorus );
+	virtual void voice_set_reverb(RID p_voice, ReverbRoomType p_room_type, float p_reverb);
+	virtual void voice_set_mix_rate(RID p_voice, int p_mix_rate);
+	virtual void voice_set_positional(RID p_voice, bool p_positional);
+
+	virtual float voice_get_volume(RID p_voice) const;
+	virtual float voice_get_pan(RID p_voice) const; //pan and depth go from -1 to 1
+	virtual float voice_get_pan_depth(RID p_voice) const; //pan and depth go from -1 to 1
+	virtual float voice_get_pan_height(RID p_voice) const; //pan and depth go from -1 to 1
+	virtual FilterType voice_get_filter_type(RID p_voice) const;
+	virtual float voice_get_filter_cutoff(RID p_voice) const;
+	virtual float voice_get_filter_resonance(RID p_voice) const;
+	virtual float voice_get_chorus(RID p_voice) const;
+	virtual ReverbRoomType voice_get_reverb_type(RID p_voice) const;
+	virtual float voice_get_reverb(RID p_voice) const;
+
+	virtual int voice_get_mix_rate(RID p_voice) const;
+	virtual bool voice_is_positional(RID p_voice) const;
+
+	virtual void voice_stop(RID p_voice);
+	virtual bool voice_is_active(RID p_voice) const;
+
+	/* STREAM API */
+
+	virtual RID audio_stream_create(AudioStream *p_stream);
+	virtual RID event_stream_create(EventStream *p_stream);
+
+	virtual void stream_set_active(RID p_stream, bool p_active);
+	virtual bool stream_is_active(RID p_stream) const;
+
+	virtual void stream_set_volume_scale(RID p_stream, float p_scale);
+	virtual float stream_set_volume_scale(RID p_stream) const;
+
+	virtual void free(RID p_id);
+
+	virtual void init();
+	virtual void finish();
+	virtual void update();
+
+	virtual void lock();
+	virtual void unlock();
+	virtual int get_default_channel_count() const;
+	virtual int get_default_mix_rate() const;
+
+	void set_mixer_params(AudioMixerSW::InterpolationType p_interp, bool p_use_fx);
+
+	virtual void set_stream_global_volume_scale(float p_volume);
+	virtual void set_fx_global_volume_scale(float p_volume);
+	virtual void set_event_voice_global_volume_scale(float p_volume);
+
+
+	virtual float get_stream_global_volume_scale() const;
+	virtual float get_fx_global_volume_scale() const;
+	virtual float get_event_voice_global_volume_scale() const;
+
+	virtual uint32_t read_output_peak() const;
+
+	virtual double get_mix_time() const; //useful for video -> audio sync
+
+	AudioServerSW(SampleManagerSW *p_sample_manager);
+	~AudioServerSW();
+
+};
+
+
+class AudioDriverSW {
+
+
+	static AudioDriverSW *singleton;
+	uint64_t _last_mix_time;
+	uint64_t _mix_amount;
+
+
+protected:
+
+	void audio_server_process(int p_frames,int32_t *p_buffer,bool p_update_mix_time=true);
+	void update_mix_time(int p_frames);
+
+public:
+
+
+	double get_mix_time() const; //useful for video -> audio sync
+
+	enum OutputFormat {
+
+		OUTPUT_MONO,
+		OUTPUT_STEREO,
+		OUTPUT_QUAD,
+		OUTPUT_5_1
+	};
+
+	static AudioDriverSW *get_singleton();
+	void set_singleton();
+
+	virtual const char* get_name() const=0;
+
+	virtual Error init()=0;
+	virtual void start()=0;
+	virtual int get_mix_rate() const =0;
+	virtual OutputFormat get_output_format() const=0;
+	virtual void lock()=0;
+	virtual void unlock()=0;
+	virtual void finish()=0;
+
+
+
+
+	AudioDriverSW();
+	virtual ~AudioDriverSW() {};
+};
+
+
+
+class AudioDriverManagerSW {
+
+	enum {
+
+		MAX_DRIVERS=10
+	};
+
+	static AudioDriverSW *drivers[MAX_DRIVERS];
+	static int driver_count;
+public:
+
+	static void add_driver(AudioDriverSW *p_driver);
+	static int get_driver_count();
+	static AudioDriverSW *get_driver(int p_driver);
+};
+
+#endif // AUDIO_SERVER_SW_H