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00001 /********************************************************************************
00002 * *
00003 * OpenAL Context adapter class *
00004 * *
00005 *********************************************************************************
00006 * Copyright (C) 2002 by Sander Jansen. All Rights Reserved. *
00007 *********************************************************************************
00008 * This library is free software; you can redistribute it and/or *
00009 * modify it under the terms of the GNU Lesser General Public *
00010 * License as published by the Free Software Foundation; either *
00011 * version 2.1 of the License, or (at your option) any later version. *
00012 * *
00013 * This library is distributed in the hope that it will be useful, *
00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
00016 * Lesser General Public License for more details. *
00017 * *
00018 * You should have received a copy of the GNU Lesser General Public *
00019 * License along with this library; if not, write to the Free Software *
00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *
00021 ********************************************************************************/
00022 #ifdef HAVE_LIBOPENAL
00023 #ifndef FXALCONTEXT_H
00024 #define FXALCONTEXT_H
00025
00026 #ifndef FXID_H
00027 #include <fox/FXId.h>
00028 using namespace FX;
00029 #endif
00030 namespace FXEX {
00031 class FXALDevice;
00032
00033 /**
00034 * FXALContext is an OpenAL audio context wrapper class.
00035 * An OpenAL audio context is similar to the FXDC abstract drawable class in FOX. It provides
00036 * an interface to the real hardware, in a manner which is device independant.
00037 */
00038 class FXAPI FXALContext : public FXId {
00039 FXDECLARE(FXALContext)
00040
00041 private:
00042 void *ctx;
00043 FXint frs[3];
00044
00045 protected:
00046 FXALContext() {}
00047
00048 protected:
00049 FXALDevice *pDevice;
00050
00051 public:
00052 /// create an OpenAL context
00053 FXALContext(FXApp *a,FXALDevice *pDevice,FXint f=-1,FXint r=-1,FXint s=-1);
00054
00055 /// create resources
00056 virtual void create();
00057
00058 /// destroy resources
00059 virtual void destroy();
00060
00061 /// make the context the current
00062 FXbool makeCurrent();
00063
00064 /// make the context the _NOT_ the current
00065 FXbool makeNonCurrent();
00066
00067 /// suspend the audio context
00068 void suspend();
00069
00070 /// process the audio
00071 void process();
00072
00073 /// dtor
00074 virtual ~FXALContext();
00075 };
00076
00077 } // namespace FXEX
00078 #endif // FXALCONTEXT_H
00079 #endif