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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