libsidplayfp 1.0.3
resid-emu.h
00001 /*
00002  * This file is part of libsidplayfp, a SID player engine.
00003  *
00004  * Copyright 2011-2013 Leandro Nini <drfiemost@users.sourceforge.net>
00005  * Copyright 2007-2010 Antti Lankila
00006  * Copyright 2001 Simon White
00007  *
00008  * This program is free software; you can redistribute it and/or modify
00009  * it under the terms of the GNU General Public License as published by
00010  * the Free Software Foundation; either version 2 of the License, or
00011  * (at your option) any later version.
00012  *
00013  * This program 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
00016  * GNU General Public License for more details.
00017  *
00018  * You should have received a copy of the GNU General Public License
00019  * along with this program; if not, write to the Free Software
00020  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00021  */
00022 
00023 #ifndef RESID_EMU_H
00024 #define RESID_EMU_H
00025 
00026 #include <string>
00027 
00028 #include "sidplayfp/sidemu.h"
00029 #include "sidplayfp/EventScheduler.h"
00030 #include "resid/sid.h"
00031 
00032 #ifdef HAVE_CONFIG_H
00033 #  include "config.h"
00034 #endif
00035 
00036 //FIXME
00037 #define RESID_NAMESPACE reSID
00038 
00039 #ifdef RESID_NAMESPACE
00040 #   define RESID_NS ::RESID_NAMESPACE
00041 #else
00042 #   define RESID_NS
00043 #endif
00044 
00045 enum {
00046     OUTPUTBUFFERSIZE = 32768
00047 };
00048 
00049 class ReSID: public sidemu
00050 {
00051 private:
00052     EventContext *m_context;
00053     RESID_NS::SID &m_sid;
00054     event_clock_t m_accessClk;
00055     const  char  *m_error;
00056     bool          m_status;
00057     bool          m_locked;
00058     uint8_t       m_voiceMask;
00059 
00060     static std::string m_credit;
00061 
00062 public:
00063     static const char* getCredits();
00064 
00065 public:
00066     ReSID(sidbuilder *builder);
00067     ~ReSID();
00068 
00069     // Standard component functions
00070     const char *credits () const { return getCredits(); }
00071 
00072     void reset() { sidemu::reset (); }
00073     void reset(uint8_t volume);
00074 
00075     uint8_t read(uint_least8_t addr);
00076     void write(uint_least8_t addr, uint8_t data);
00077 
00078     const char *error() const { return m_error; }
00079 
00080     // Standard SID functions
00081     void clock();
00082     void filter(bool enable);
00083     void voice(unsigned int num, bool mute);
00084 
00085     bool getStatus() const { return m_status; }
00086 
00087     // Specific to resid
00088     void sampling(float systemclock, float freq,
00089         SidConfig::sampling_method_t method, bool fast);
00090 
00091     void bias(double dac_bias);
00092     void model(SidConfig::sid_model_t model);
00093 
00094     // Must lock the SID before using the standard functions.
00095     bool lock(EventContext *env);
00096     void unlock();
00097 };
00098 
00099 #endif // RESID_EMU_H