libsidplayfp  1.0.3
resid-emu.h
1 /*
2  * This file is part of libsidplayfp, a SID player engine.
3  *
4  * Copyright 2011-2013 Leandro Nini <drfiemost@users.sourceforge.net>
5  * Copyright 2007-2010 Antti Lankila
6  * Copyright 2001 Simon White
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21  */
22 
23 #ifndef RESID_EMU_H
24 #define RESID_EMU_H
25 
26 #include <string>
27 
28 #include "sidplayfp/sidemu.h"
29 #include "sidplayfp/EventScheduler.h"
30 #include "resid/sid.h"
31 
32 #ifdef HAVE_CONFIG_H
33 # include "config.h"
34 #endif
35 
36 //FIXME
37 #define RESID_NAMESPACE reSID
38 
39 #ifdef RESID_NAMESPACE
40 # define RESID_NS ::RESID_NAMESPACE
41 #else
42 # define RESID_NS
43 #endif
44 
45 enum {
46  OUTPUTBUFFERSIZE = 32768
47 };
48 
49 class ReSID: public sidemu
50 {
51 private:
52  EventContext *m_context;
53  RESID_NS::SID &m_sid;
54  event_clock_t m_accessClk;
55  const char *m_error;
56  bool m_status;
57  bool m_locked;
58  uint8_t m_voiceMask;
59 
60  static std::string m_credit;
61 
62 public:
63  static const char* getCredits();
64 
65 public:
66  ReSID(sidbuilder *builder);
67  ~ReSID();
68 
69  // Standard component functions
70  const char *credits () const { return getCredits(); }
71 
72  void reset() { sidemu::reset (); }
73  void reset(uint8_t volume);
74 
75  uint8_t read(uint_least8_t addr);
76  void write(uint_least8_t addr, uint8_t data);
77 
78  const char *error() const { return m_error; }
79 
80  // Standard SID functions
81  void clock();
82  void filter(bool enable);
83  void voice(unsigned int num, bool mute);
84 
85  bool getStatus() const { return m_status; }
86 
87  // Specific to resid
88  void sampling(float systemclock, float freq,
89  SidConfig::sampling_method_t method, bool fast);
90 
91  void bias(double dac_bias);
92  void model(SidConfig::sid_model_t model);
93 
94  // Must lock the SID before using the standard functions.
95  bool lock(EventContext *env);
96  void unlock();
97 };
98 
99 #endif // RESID_EMU_H