112 lines
2.8 KiB
Text
112 lines
2.8 KiB
Text
/*
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* This file is part of libsidplayfp, a SID player engine.
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*
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* Copyright 2011-2014 Leandro Nini <drfiemost@users.sourceforge.net>
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* Copyright 2007-2010 Antti Lankila
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* Copyright 2000-2001 Simon White
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef SIDEMU_H
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#define SIDEMU_H
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#include <string>
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#include "sidplayfp/SidConfig.h"
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#include "sidplayfp/siddefs.h"
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#include "sidplayfp/event.h"
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#include "c64/c64sid.h"
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#include "sidcxx11.h"
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class sidbuilder;
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class EventContext;
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/**
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* Inherit this class to create a new SID emulation.
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*/
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class sidemu : public libsidplayfp::c64sid
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{
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public:
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/**
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* Buffer size. 5000 is roughly 5 ms at 96 kHz
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*/
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enum
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{
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OUTPUTBUFFERSIZE = 5000
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};
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private:
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sidbuilder* const m_builder;
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protected:
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static std::string m_credit;
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protected:
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static const char ERR_UNSUPPORTED_FREQ[];
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static const char ERR_INVALID_SAMPLING[];
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static const char ERR_INVALID_CHIP[];
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protected:
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EventContext *m_context;
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event_clock_t m_accessClk;
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short *m_buffer;
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int m_bufferpos;
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bool m_status;
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bool m_locked;
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std::string m_error;
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public:
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sidemu(sidbuilder *builder) :
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m_builder(builder),
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m_context(nullptr),
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m_buffer(nullptr),
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m_bufferpos(0),
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m_status(true),
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m_locked(false),
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m_error("N/A") {}
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virtual ~sidemu() {}
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virtual void clock() = 0;
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/// Set execution environment and lock sid to it
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virtual bool lock(EventContext *env);
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/// Unlock sid
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virtual void unlock();
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// Standard SID functions
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virtual void voice(unsigned int num, bool mute) = 0;
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virtual void model(SidConfig::sid_model_t model) = 0;
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virtual void sampling(float systemfreq SID_UNUSED, float outputfreq SID_UNUSED,
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SidConfig::sampling_method_t method SID_UNUSED, bool fast SID_UNUSED) {}
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const char* error() const { return m_error.c_str(); }
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sidbuilder* builder() const { return m_builder; }
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int bufferpos() const { return m_bufferpos; }
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void bufferpos(int pos) { m_bufferpos = pos; }
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short *buffer() const { return m_buffer; }
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};
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#endif // SIDEMU_H
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