SoundStream.hpp

00001 
00002 //
00003 // SFML - Simple and Fast Multimedia Library
00004 // Copyright (C) 2007 Laurent Gomila (laurent.gom@gmail.com)
00005 //
00006 // This software is provided 'as-is', without any express or implied warranty.
00007 // In no event will the authors be held liable for any damages arising from the use of this software.
00008 //
00009 // Permission is granted to anyone to use this software for any purpose,
00010 // including commercial applications, and to alter it and redistribute it freely,
00011 // subject to the following restrictions:
00012 //
00013 // 1. The origin of this software must not be misrepresented;
00014 //    you must not claim that you wrote the original software.
00015 //    If you use this software in a product, an acknowledgment
00016 //    in the product documentation would be appreciated but is not required.
00017 //
00018 // 2. Altered source versions must be plainly marked as such,
00019 //    and must not be misrepresented as being the original software.
00020 //
00021 // 3. This notice may not be removed or altered from any source distribution.
00022 //
00024 
00025 #ifndef SFML_SOUNDSTREAM_HPP
00026 #define SFML_SOUNDSTREAM_HPP
00027 
00029 // Headers
00031 #include <SFML/Audio/Sound.hpp>
00032 #include <SFML/System/Thread.hpp>
00033 #include <cstdlib>
00034 
00035 
00042 class SFML_API sfSoundStream : private sfThread, private sfSound
00043 {
00044 public :
00045 
00046     using sfSound::Status;
00047     using sfSound::Stopped;
00048     using sfSound::Paused;
00049     using sfSound::Playing;
00050     using sfSound::Pause;
00051     using sfSound::SetPitch;
00052     using sfSound::SetVolume;
00053     using sfSound::SetPosition;
00054     using sfSound::GetPitch;
00055     using sfSound::GetVolume;
00056     using sfSound::GetPosition;
00057 
00061     struct Chunk
00062     {
00063         const sfInt16* Samples;   
00064         std::size_t    NbSamples; 
00065     };
00066 
00071     virtual ~sfSoundStream();
00072 
00077     void Play();
00078 
00083     void Stop();
00084 
00091     unsigned int GetChannelsCount() const;
00092 
00099     unsigned int GetSampleRate() const;
00100 
00107     Status GetStatus() const;
00108 
00109 protected :
00110 
00115     sfSoundStream();
00116 
00124     void Initialize(unsigned int ChannelsCount, unsigned int SampleRate);
00125 
00126 private :
00127 
00132     virtual void Run();
00133 
00140     virtual bool OnStart();
00141 
00150     virtual bool OnGetData(Chunk& Data) = 0;
00151 
00156     void CleanUp();
00157 
00158     enum {BuffersCount = 2};
00159 
00161     // Member data
00163     bool          myIsStreaming;           
00164     unsigned int  myBuffers[BuffersCount]; 
00165     unsigned int  myChannelsCount;         
00166     unsigned int  mySampleRate;            
00167     unsigned long myFormat;                
00168 };
00169 
00170 
00171 #endif // SFML_SOUNDSTREAM_HPP