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# isndsys/ss_source.h

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    00001 /*
    00002     Copyright (C) 2004 by Andrew Mann
    00003     Copyright (C) 1998-2000 by Jorrit Tyberghein
    00004
    00005     This library is free software; you can redistribute it and/or
    00006     modify it under the terms of the GNU Library General Public
    00007     License as published by the Free Software Foundation; either
    00008     version 2 of the License, or (at your option) any later version.
    00009
    00010     This library is distributed in the hope that it will be useful,
    00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00013     Library General Public License for more details.
    00014
    00015     You should have received a copy of the GNU Library General Public
    00016     License along with this library; if not, write to the Free
    00017     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    00018 */
    00019
    00020 #ifndef __CS_SNDSYS_ISNDSYS_SOURCE_H__
    00021 #define __CS_SNDSYS_ISNDSYS_SOURCE_H__
    00022
    00027 #include "csutil/scf.h"
    00028 #include "csgeom/vector3.h"
    00029 #include "isndsys/ss_structs.h"
    00030 #include "isndsys/ss_filter.h"
    00031
    00036 struct iSndSysFilter;
    00037 struct iSndSysStream;
    00038
    00039 #ifndef CS_SNDSYS_SOURCE_DISTANCE_INFINITE
    00040 #define CS_SNDSYS_SOURCE_DISTANCE_INFINITE -1.0f
    00041 #endif
    00042
    00046 struct iSndSysSource : public virtual iBase
    00047 {
    00049   SCF_INTERFACE(iSndSysSource,2,0,0);
    00050
    00052   virtual void SetVolume (float volume) = 0;
    00054   virtual float GetVolume () = 0;
    00055
    00057   virtual csRef<iSndSysStream> GetStream() = 0;
    00058
    00060   //  Output filters can only receive sound data and cannot modify it.  They will receive data
    00061   //   from the same thread that the CS event handler executes in, once per frame.
    00062   //
    00063   //  Valid Locations:  SS_FILTER_LOC_SOURCEOUT, SS_FILTER_LOC_SOURCEIN
    00064   //
    00065   //  Returns FALSE if the filter could not be added.
    00066   virtual bool AddOutputFilter(SndSysFilterLocation Location, iSndSysSoftwareOutputFilter *pFilter) = 0;
    00067
    00069   //
    00070   //  Valid Locations:  SS_FILTER_LOC_SOURCEOUT, SS_FILTER_LOC_SOURCEIN
    00071   //
    00072   // Returns FALSE if the filter is not in the list at the time of the call.
    00073   virtual bool RemoveOutputFilter(SndSysFilterLocation Location, iSndSysSoftwareOutputFilter *pFilter) = 0;
    00074
    00076   virtual iSndSysSource *GetPtr() = 0;
    00077 };
    00078
    00082 struct iSndSysSourceSoftware : public iSndSysSource
    00083 {
    00085   SCF_INTERFACE(iSndSysSourceSoftware,2,0,0);
    00086
    00097   virtual size_t MergeIntoBuffer(csSoundSample *frame_buffer, size_t frame_count) = 0;
    00098
    00099
    00101   virtual void ProcessOutputFilters() = 0;
    00102
    00103 };
    00104
    00108 struct iSndSysSourceSoftware3D : public iSndSysSourceSoftware
    00109 {
    00111   SCF_INTERFACE(iSndSysSourceSoftware3D,2,0,0);
    00112
    00114   virtual void SetPosition(csVector3 pos) = 0;
    00116   virtual csVector3 GetPosition() = 0;
    00117
    00119   virtual void SetDirection(csVector3 dir) = 0;
    00121   virtual csVector3 GetDirection() = 0;
    00122
    00131   virtual void SetDirectionalRadiation(float rad) = 0;
    00132
    00134   virtual float GetDirectionalRadiation() = 0;
    00135
    00144   virtual void SetMinimumDistance (float distance) = 0;
    00145
    00151   virtual void SetMaximumDistance (float distance) = 0;
    00152
    00157   virtual float GetMinimumDistance () = 0;
    00158
    00163   virtual float GetMaximumDistance () = 0;
    00164
    00166 //  virtual bool AttachFilter(csRef<iSound2Filter> filter) = 0;
    00167
    00169 //  virtual bool RemoveFilter(csRef<iSound2Filter> filter)= 0;
    00170 };
    00171
    00174 #endif // __CS_SNDSYS_ISNDSYS_SOURCE_H__