blob: 1660ecfde3c8f0aa58a2373f0a34d937cdd13b35 (
plain)
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
|
#ifndef __DRUMGIZMO_CACHEMANAGER_H__
#define __DRUMGIZMO_CACHEMANAGER_H__
#include <string>
#include <list>
#include <vector>
#include "thread.h"
#include "semaphore.h"
#include "mutex.h"
#include "audiotypes.h"
#include "audiofile.h"
#define CACHE_DUMMYID -2
#define CACHE_NOID -1
#define CHUNK_MULTIPLIER 16
class AudioFile;
typedef int cacheid_t;
class AFile;
class CacheManager : public Thread {
public:
CacheManager();
~CacheManager();
void init(size_t poolsize, bool threaded);
void deinit();
sample_t *open(AudioFile *file, size_t initial_samples_needed, int channel,
cacheid_t &new_id);
sample_t *next(cacheid_t id, size_t &size);
void close(cacheid_t id);
void setFrameSize(size_t framesize);
void setAsyncMode(bool async);
void thread_main();
class Channel {
public:
size_t channel;
sample_t* samples;
size_t num_samples;
volatile bool* ready;
};
private:
size_t framesize;
sample_t *nodata;
typedef struct {
AFile *afile;
size_t channel;
size_t pos;
volatile bool ready;
sample_t *front;
sample_t *back;
size_t localpos;
sample_t* preloaded_samples;
size_t preloaded_samples_size;
} cache_t;
typedef enum {
LOADNEXT = 0,
CLOSE = 1
} cmd_t;
typedef struct {
cmd_t cmd;
cacheid_t id;
size_t pos;
AFile *afile;
std::list<CacheManager::Channel> channels;
} cevent_t;
cevent_t createLoadNextEvent(AFile *afile, size_t channel, size_t pos,
sample_t* buffer, volatile bool* ready);
cevent_t createCloseEvent(cacheid_t id);
void handleLoadNextEvent(cevent_t& e);
void handleCloseEvent(cevent_t& e);
void handleEvent(cevent_t& e);
void pushEvent(cevent_t& e);
std::vector<cache_t> id2cache;
std::list<cevent_t> eventqueue;
std::list<cacheid_t> availableids;
Mutex m_events;
Mutex m_ids;
bool threaded;
Semaphore sem;
Semaphore sem_run;
bool running;
std::map<std::string, AFile*> files;
};
#endif
|