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# SoundStream.hpp

    00001
    00002 //
    00003 // SFML - Simple and Fast Multimedia Library
    00004 // Copyright (C) 2007-2009 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
    00036 namespace sf
    00037 {
    00044 class SFML_API SoundStream : private Thread, private Sound
    00045 {
    00046 public :
    00047
    00048     using Sound::Status;
    00049     using Sound::Stopped;
    00050     using Sound::Paused;
    00051     using Sound::Playing;
    00052     using Sound::Pause;
    00053     using Sound::SetPitch;
    00054     using Sound::SetVolume;
    00055     using Sound::SetPosition;
    00056     using Sound::SetRelativeToListener;
    00057     using Sound::SetMinDistance;
    00058     using Sound::SetAttenuation;
    00059     using Sound::GetPitch;
    00060     using Sound::GetVolume;
    00061     using Sound::GetPosition;
    00062     using Sound::IsRelativeToListener;
    00063     using Sound::GetMinDistance;
    00064     using Sound::GetAttenuation;
    00065
    00069     struct Chunk
    00070     {
    00071         const Int16* Samples;
    00072         std::size_t  NbSamples;
    00073     };
    00074
    00079     virtual ~SoundStream();
    00080
    00085     void Play();
    00086
    00091     void Stop();
    00092
    00099     unsigned int GetChannelsCount() const;
    00100
    00107     unsigned int GetSampleRate() const;
    00108
    00115     Status GetStatus() const;
    00116
    00123     float GetPlayingOffset() const;
    00124
    00132     void SetLoop(bool Loop);
    00133
    00140     bool GetLoop() const;
    00141
    00142 protected :
    00143
    00148     SoundStream();
    00149
    00157     void Initialize(unsigned int ChannelsCount, unsigned int SampleRate);
    00158
    00159 private :
    00160
    00165     virtual void Run();
    00166
    00173     virtual bool OnStart();
    00174
    00183     virtual bool OnGetData(Chunk& Data) = 0;
    00184
    00194     bool FillAndPushBuffer(unsigned int BufferNum);
    00195
    00202     bool FillQueue();
    00203
    00208     void ClearQueue();
    00209
    00210     enum {BuffersCount = 3};
    00211
    00213     // Member data
    00215     bool          myIsStreaming;
    00216     unsigned int  myBuffers[BuffersCount];
    00217     unsigned int  myChannelsCount;
    00218     unsigned int  mySampleRate;
    00219     unsigned long myFormat;
    00220     bool          myLoop;
    00221     unsigned int  mySamplesProcessed;
    00222     bool          myEndBuffers[BuffersCount];
    00223 };
    00224
    00225 } // namespace sf
    00226
    00227
    00228 #endif // SFML_SOUNDSTREAM_HPP

:: Copyright © 2007-2008 Laurent Gomila, all rights reserved :: Documentation generated by doxygen 1.5.2 ::