1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Sonic Visualiser
An audio file viewer and annotation editor.
Centre for Digital Music, Queen Mary, University of London.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version. See the file
COPYING included with this distribution for more information.
*/
/*
This is a modified version of a source file from the
Rosegarden MIDI and audio sequencer and notation editor.
This file copyright 2000-2006 Chris Cannam.
*/
#ifndef SV_DSSIPLUGININSTANCE_H
#define SV_DSSIPLUGININSTANCE_H
#define DSSI_API_LEVEL 2
#include <vector>
#include <set>
#include <map>
#include <QString>
#include <QMutex>
#include "api/dssi.h"
#include "base/RingBuffer.h"
#include "base/Thread.h"
#include "RealTimePluginInstance.h"
#include "base/Scavenger.h"
namespace sv {
class DSSIPluginInstance : public RealTimePluginInstance
{
public:
virtual ~DSSIPluginInstance();
bool isOK() const override { return m_instanceHandle != 0; }
int getClientId() const { return m_client; }
QString getPluginIdentifier() const override { return m_identifier; }
int getPosition() const { return m_position; }
std::string getIdentifier() const override;
std::string getName() const override;
std::string getDescription() const override;
std::string getMaker() const override;
int getPluginVersion() const override;
std::string getCopyright() const override;
void run(const RealTime &, int count = 0) override;
int getParameterCount() const override;
void setParameterValue(int parameter, float value) override;
float getParameterValue(int parameter) const override;
float getParameterDefault(int parameter) const override;
int getParameterDisplayHint(int parameter) const override;
ParameterList getParameterDescriptors() const override;
float getParameter(std::string) const override;
void setParameter(std::string, float) override;
std::string configure(std::string key, std::string value) override;
void sendEvent(const RealTime &eventTime,
const void *event) override;
void clearEvents() override;
int getBufferSize() const override { return m_blockSize; }
int getAudioInputCount() const override { return (int)m_audioPortsIn.size(); }
int getAudioOutputCount() const override { return m_idealChannelCount; }
sample_t **getAudioInputBuffers() override { return m_inputBuffers; }
sample_t **getAudioOutputBuffers() override { return m_outputBuffers; }
int getControlOutputCount() const override { return (int)m_controlPortsOut.size(); }
float getControlOutputValue(int n) const override;
ProgramList getPrograms() const override;
std::string getCurrentProgram() const override;
std::string getProgram(int bank, int program) const override;
virtual int getProgram(std::string name) const;
void selectProgram(std::string program) override;
bool isBypassed() const override { return m_bypassed; }
void setBypassed(bool bypassed) override { m_bypassed = bypassed; }
sv_frame_t getLatency() override;
void silence() override;
void discardEvents() override;
void setIdealChannelCount(int channels) override; // may re-instantiate
virtual bool isInGroup() const { return m_grouped; }
virtual void detachFromGroup();
std::string getType() const override { return "DSSI Real-Time Plugin"; }
protected:
// To be constructed only by DSSIPluginFactory
friend class DSSIPluginFactory;
// Constructor that creates the buffers internally
//
DSSIPluginInstance(RealTimePluginFactory *factory,
int client,
QString identifier,
int position,
sv_samplerate_t sampleRate,
int blockSize,
int idealChannelCount,
const DSSI_Descriptor* descriptor);
void init();
void instantiate(sv_samplerate_t sampleRate);
void cleanup();
void activate();
void deactivate();
void connectPorts();
bool handleController(snd_seq_event_t *ev);
void setPortValueFromController(int portNumber, int controlValue);
void selectProgramAux(std::string program, bool backupPortValues);
void checkProgramCache() const;
void initialiseGroupMembership();
void runGrouped(const RealTime &);
// For use in DSSIPluginFactory (set in the DSSI_Host_Descriptor):
static int requestMidiSend(LADSPA_Handle instance,
unsigned char ports,
unsigned char channels);
static void midiSend(LADSPA_Handle instance,
snd_seq_event_t *events,
unsigned long eventCount);
static int requestNonRTThread(LADSPA_Handle instance,
void (*runFunction)(LADSPA_Handle));
int m_client;
int m_position;
LADSPA_Handle m_instanceHandle;
const DSSI_Descriptor *m_descriptor;
std::vector<std::pair<int, LADSPA_Data*> > m_controlPortsIn;
std::vector<std::pair<int, LADSPA_Data*> > m_controlPortsOut;
std::vector<LADSPA_Data> m_backupControlPortsIn;
std::map<int, int> m_controllerMap;
std::vector<int> m_audioPortsIn;
std::vector<int> m_audioPortsOut;
struct ProgramControl {
int msb;
int lsb;
int program;
};
ProgramControl m_pending;
struct ProgramDescriptor {
int bank;
int program;
std::string name;
};
mutable std::vector<ProgramDescriptor> m_cachedPrograms;
mutable bool m_programCacheValid;
RingBuffer<snd_seq_event_t> m_eventBuffer;
int m_blockSize;
sample_t **m_inputBuffers;
sample_t **m_outputBuffers;
bool m_ownBuffers;
int m_idealChannelCount;
int m_outputBufferCount;
sv_samplerate_t m_sampleRate;
float *m_latencyPort;
bool m_run;
bool m_bypassed;
std::string m_program;
bool m_grouped;
RealTime m_lastRunTime;
RealTime m_lastEventSendTime;
bool m_haveLastEventSendTime;
QMutex m_processLock;
typedef std::set<DSSIPluginInstance *> PluginSet;
typedef std::map<QString, PluginSet> GroupMap;
static GroupMap m_groupMap;
static snd_seq_event_t **m_groupLocalEventBuffers;
static size_t m_groupLocalEventBufferCount;
static Scavenger<ScavengerArrayWrapper<snd_seq_event_t *> > m_bufferScavenger;
class NonRTPluginThread : public Thread
{
public:
NonRTPluginThread(LADSPA_Handle handle,
void (*runFunction)(LADSPA_Handle)) :
m_handle(handle),
m_runFunction(runFunction),
m_exiting(false) { }
void run() override;
void setExiting() { m_exiting = true; }
protected:
LADSPA_Handle m_handle;
void (*m_runFunction)(LADSPA_Handle);
bool m_exiting;
};
static std::map<LADSPA_Handle, std::set<NonRTPluginThread *> > m_threads;
};
} // end namespace sv
#endif // _DSSIPLUGININSTANCE_H_
|
