libsidplayfp  1.8.7
sidemu.h
1 /*
2  * This file is part of libsidplayfp, a SID player engine.
3  *
4  * Copyright 2011-2014 Leandro Nini <drfiemost@users.sourceforge.net>
5  * Copyright 2007-2010 Antti Lankila
6  * Copyright 2000-2001 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 SIDEMU_H
24 #define SIDEMU_H
25 
26 #include <string>
27 
28 #include "SidConfig.h"
29 #include "siddefs.h"
30 #include "event.h"
31 #include "c64/c64sid.h"
32 
33 class sidbuilder;
34 class EventContext;
35 
39 class sidemu : public c64sid
40 {
41 public:
45  enum
46  {
47  OUTPUTBUFFERSIZE = 5000
48  };
49 
50 private:
51  sidbuilder *m_builder;
52 
53 protected:
54  static std::string m_credit;
55 
56 protected:
57  static const char ERR_UNSUPPORTED_FREQ[];
58  static const char ERR_INVALID_SAMPLING[];
59  static const char ERR_INVALID_CHIP[];
60 
61 protected:
62  EventContext *m_context;
63 
64  event_clock_t m_accessClk;
65 
67  short *m_buffer;
68 
71 
72  bool m_status;
73  bool m_locked;
74 
75  std::string m_error;
76 
77 public:
78  sidemu(sidbuilder *builder) :
79  m_builder (builder),
80  m_context(0),
81  m_buffer(0),
82  m_bufferpos(0),
83  m_status(true),
84  m_locked(false),
85  m_error("N/A") {}
86  virtual ~sidemu() {}
87 
91  virtual void clock() = 0;
92 
96  virtual bool lock(EventContext *env);
97 
101  virtual void unlock();
102 
103  // Standard SID functions
104 
108  virtual void voice(unsigned int num, bool mute) = 0;
109 
113  virtual void model(SidConfig::sid_model_t model) = 0;
114 
123  virtual void sampling(float systemfreq SID_UNUSED, float outputfreq SID_UNUSED,
124  SidConfig::sampling_method_t method SID_UNUSED, bool fast SID_UNUSED) {}
125 
129  const char *error() const { return m_error.c_str(); }
130 
131  sidbuilder *builder() const { return m_builder; }
132 
136  int bufferpos() const { return m_bufferpos; }
137 
141  void bufferpos(int pos) { m_bufferpos = pos; }
142 
146  short *buffer() const { return m_buffer; }
147 
148  void poke(uint_least16_t address, uint8_t value) { write(address & 0x1f, value); }
149  uint8_t peek(uint_least16_t address) { return read(address & 0x1f); }
150 };
151 
152 #endif // SIDEMU_H
short * m_buffer
The sample buffer.
Definition: sidemu.h:67
short * buffer() const
Definition: sidemu.h:146
Definition: sidemu.h:39
void poke(uint_least16_t address, uint8_t value)
Definition: sidemu.h:148
int bufferpos() const
Definition: sidemu.h:136
virtual void voice(unsigned int num, bool mute)=0
const char * error() const
Definition: sidemu.h:129
Definition: c64sid.h:32
Definition: event.h:107
virtual bool lock(EventContext *env)
Definition: sidemu.cpp:31
virtual void unlock()
Definition: sidemu.cpp:42
uint8_t peek(uint_least16_t address)
Definition: sidemu.h:149
virtual void model(SidConfig::sid_model_t model)=0
Definition: sidbuilder.h:37
virtual void clock()=0
virtual void sampling(float systemfreq SID_UNUSED, float outputfreq SID_UNUSED, SidConfig::sampling_method_t method SID_UNUSED, bool fast SID_UNUSED)
Definition: sidemu.h:123
int m_bufferpos
Current position in buffer.
Definition: sidemu.h:70
void bufferpos(int pos)
Definition: sidemu.h:141