00001 /*! \file 00002 \brief This file applies the GNU LESSER GENERAL PUBLIC LICENSE Version 2.1 , read file COPYING. 00003 */ 00004 #ifndef COM_M4NKIND_MediaSoundEquation_H 00005 #define COM_M4NKIND_MediaSoundEquation_H 00006 00007 #include "VirtualMedia.h" 00008 #include "PackLong_WithLimits.h" 00009 #include "PackFloatByte_Limits.h" 00010 #include "PackDynamicFloat.h" 00011 #include "PackObjectReference.h" 00012 #include "PackDynamicFloat.h" 00013 #include "PackULong_Flags.h" 00014 00015 /*! 00016 \class MediaSoundEquation 00017 \brief create sounds using equations. 00018 00019 */ 00020 class MediaSoundEquation : public VirtualMedia 00021 { 00022 /*================================================================== 00023 PUBLIC 00024 ==================================================================*/ 00025 public: 00026 /*! 00027 \brief Constructor. There should only be members initialisation there. 00028 */ 00029 MediaSoundEquation(void); 00030 00031 /*! 00032 \brief Class Inheritance Descriptors. 00033 */ 00034 BASEOBJECT_DEFINE_CLASS(MediaSoundEquation); 00035 /*! 00036 \brief If the media had to generate real time sounds, 00037 ProcessSoundInterupt will be called by a machine. There is a default 00038 behaviour for this method, which does nothing. the float buffer 00039 accumulate the whole machine sound. 00040 \param _SoundBufferToAddYourSignal description of the buffer to fill. 00041 */ 00042 virtual void ProcessSoundInterupt( VirtualMachine::SoundBufferToAddYourSignal &_SoundBufferToAddYourSignal ); 00043 00044 /*================================================================== 00045 PROTECTED 00046 ==================================================================*/ 00047 protected: 00048 //! Flags 00049 typedef enum { 00050 ef_LoopSample=1, 00051 ef_AntiAlias=2, 00052 } eFlags; 00053 PackULong_Flags mSer_Flags; 00054 //! base equ. 00055 PackObjectReference mSer_Equation; 00056 //! the time length of the media is precomputed in editable mode, and just read in non-editable. 00057 PackFloat mSer_TimeLength; 00058 //! the time length of the media is precomputed in editable mode, and just read in non-editable. 00059 PackLong_WithLimits mSer_SampleFrequency; 00060 //! 0 left 1 Right 00061 PackDynamicFloat mSer_StereoSpan; 00062 //! 00063 PackFloatByte_Limits mSer_FadeOut; 00064 00065 //! precomputation: 00066 float *m_pSampleBuffer; 00067 //! 00068 unsigned int m_SampleBufferLength; 00069 // 00070 unsigned int m_LastBufferIndex; 00071 unsigned int m_LastBufferIndexFrac; 00072 //! watch time continuity. 00073 int m_LastEndSecond; 00074 unsigned int m_LastEndSecFrac; 00075 unsigned long long m_vector; 00076 /*! 00077 \brief Method that really build the object using the serializable parameters. 00078 Close() should close everything opened by CreateInternal(). 00079 */ 00080 virtual bool CreateInternal(void); 00081 00082 #ifdef _ENGINE_EDITABLE_ 00083 /*! 00084 \brief that closes everything. Still, the object exist and can be rebuild the same using Create() 00085 */ 00086 virtual void CloseInternal(void); 00087 #endif 00088 #ifdef _ENGINE_EDITABLE_ 00089 /*! 00090 \brief Extend this method to draw your preview ! 00091 \param _frameDate a date, in second, which defines the effect cinematic. 00092 \param _pPreviewViewPort the viewport to render. Can't be 0L. 00093 \param _pPreviewConfiguration Preview Configuration object. Never 0L. Do not keep a pointer to it. 00094 */ 00095 virtual void ProcessPreview(double _frameDate,VirtualMachine::InternalViewPort *_pViewPort,const PreviewConfiguration *_pPreviewConfiguration); 00096 #endif 00097 00098 }; 00099 00100 #endif
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