1 |
iliev |
2012 |
/*************************************************************************** |
2 |
|
|
* * |
3 |
|
|
* LinuxSampler - modular, streaming capable sampler * |
4 |
|
|
* * |
5 |
|
|
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
6 |
schoenebeck |
2275 |
* Copyright (C) 2005 - 2011 Christian Schoenebeck * |
7 |
iliev |
2012 |
* Copyright (C) 2009 Grigor Iliev * |
8 |
|
|
* * |
9 |
|
|
* This library is free software; you can redistribute it and/or modify * |
10 |
|
|
* it under the terms of the GNU General Public License as published by * |
11 |
|
|
* the Free Software Foundation; either version 2 of the License, or * |
12 |
|
|
* (at your option) any later version. * |
13 |
|
|
* * |
14 |
|
|
* This library is distributed in the hope that it will be useful, * |
15 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
16 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
17 |
|
|
* GNU General Public License for more details. * |
18 |
|
|
* * |
19 |
|
|
* You should have received a copy of the GNU General Public License * |
20 |
|
|
* along with this library; if not, write to the Free Software * |
21 |
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
22 |
|
|
* MA 02111-1307 USA * |
23 |
|
|
***************************************************************************/ |
24 |
|
|
|
25 |
|
|
#ifndef __LS_INSTRUMENTMANAGERBASE_H__ |
26 |
|
|
#define __LS_INSTRUMENTMANAGERBASE_H__ |
27 |
|
|
|
28 |
|
|
#include "InstrumentManager.h" |
29 |
|
|
#include "AbstractEngine.h" |
30 |
|
|
#include "AbstractEngineChannel.h" |
31 |
|
|
#include "../common/ResourceManager.h" |
32 |
|
|
#include "../common/global_private.h" |
33 |
schoenebeck |
2275 |
#include "../drivers/audio/AudioOutputDeviceFactory.h" |
34 |
iliev |
2012 |
|
35 |
|
|
// We need to know the maximum number of sample points which are going to |
36 |
|
|
// be processed for each render cycle of the audio output driver, to know |
37 |
|
|
// how much initial sample points we need to cache into RAM. If the given |
38 |
|
|
// sampler channel does not have an audio output device assigned yet |
39 |
|
|
// though, we simply use this default value. |
40 |
|
|
#define GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE 128 |
41 |
|
|
|
42 |
|
|
namespace LinuxSampler { |
43 |
|
|
|
44 |
|
|
template <class F /* Instrument File */, class I /* Instrument */, class R /* Regions */, class S /*Sample */> |
45 |
|
|
class InstrumentManagerBase : virtual public InstrumentManager, virtual public ResourceManager<InstrumentManager::instrument_id_t, I> { |
46 |
|
|
public: |
47 |
|
|
struct region_info_t { |
48 |
|
|
int refCount; |
49 |
|
|
F* file; |
50 |
|
|
void* pArg; |
51 |
|
|
|
52 |
|
|
region_info_t() { |
53 |
|
|
refCount = 0; file = NULL; pArg = NULL; |
54 |
|
|
} |
55 |
|
|
}; |
56 |
|
|
|
57 |
|
|
typedef ResourceConsumer<I> InstrumentConsumer; |
58 |
|
|
|
59 |
|
|
InstrumentManagerBase() { } |
60 |
|
|
virtual ~InstrumentManagerBase() { } |
61 |
|
|
|
62 |
|
|
virtual InstrumentEditor* LaunchInstrumentEditor(instrument_id_t ID, void* pUserData = NULL) throw (InstrumentManagerException) { |
63 |
|
|
throw InstrumentManagerException( |
64 |
|
|
"Instrument editing is not supported for this instrument format" |
65 |
|
|
); |
66 |
|
|
} |
67 |
|
|
|
68 |
|
|
virtual String GetInstrumentDataStructureName(instrument_id_t ID) { |
69 |
|
|
throw InstrumentManagerException("Not implemented"); |
70 |
|
|
} |
71 |
|
|
|
72 |
|
|
virtual String GetInstrumentDataStructureVersion(instrument_id_t ID) { |
73 |
|
|
throw InstrumentManagerException("Not implemented"); |
74 |
|
|
} |
75 |
|
|
|
76 |
|
|
/** |
77 |
|
|
* Give back an instrument. This should be used instead of |
78 |
|
|
* HandBack if there are some regions that are still in |
79 |
|
|
* use. (When an instrument is changed, the voices currently |
80 |
|
|
* playing are allowed to keep playing with the old instrument |
81 |
|
|
* until note off arrives. New notes will use the new instrument.) |
82 |
|
|
*/ |
83 |
|
|
void HandBackInstrument ( |
84 |
|
|
I* pResource, |
85 |
|
|
InstrumentConsumer* pConsumer, |
86 |
|
|
RTList<R*>* pRegionsInUse |
87 |
|
|
) { |
88 |
|
|
RegionInfoMutex.Lock(); |
89 |
|
|
for (typename RTList<R*>::Iterator i = pRegionsInUse->first() ; i != pRegionsInUse->end() ; i++) { |
90 |
|
|
RegionInfo[*i].refCount++; |
91 |
|
|
SampleRefCount[(*i)->pSample]++; |
92 |
|
|
} |
93 |
|
|
HandBack(pResource, pConsumer, true); |
94 |
|
|
RegionInfoMutex.Unlock(); |
95 |
|
|
} |
96 |
|
|
|
97 |
|
|
/** |
98 |
|
|
* Give back a region that belongs to an instrument that |
99 |
|
|
* was previously handed back. |
100 |
|
|
*/ |
101 |
|
|
virtual void HandBackRegion(R* pRegion) { |
102 |
|
|
RegionInfoMutex.Lock(); |
103 |
|
|
if (RegionInfo.find(pRegion) == RegionInfo.end()) { |
104 |
|
|
std::cerr << "Handing back unknown region. This is a BUG!!!" << std::endl; |
105 |
|
|
} |
106 |
|
|
region_info_t& regInfo = RegionInfo[pRegion]; |
107 |
|
|
int regionRefCount = --regInfo.refCount; |
108 |
|
|
int sampleRefCount = --SampleRefCount[pRegion->pSample]; |
109 |
|
|
if (regionRefCount == 0) { |
110 |
persson |
2058 |
S* pSample = pRegion->pSample; |
111 |
|
|
|
112 |
iliev |
2012 |
DeleteRegionIfNotUsed(pRegion, ®Info); |
113 |
|
|
|
114 |
|
|
if (sampleRefCount == 0) { |
115 |
persson |
2058 |
SampleRefCount.erase(pSample); |
116 |
|
|
DeleteSampleIfNotUsed(pSample, ®Info); |
117 |
iliev |
2012 |
} |
118 |
persson |
2058 |
RegionInfo.erase(pRegion); |
119 |
iliev |
2012 |
} |
120 |
|
|
RegionInfoMutex.Unlock(); |
121 |
|
|
} |
122 |
|
|
|
123 |
|
|
virtual InstrumentManager::mode_t GetMode(const InstrumentManager::instrument_id_t& ID) { |
124 |
|
|
return static_cast<InstrumentManager::mode_t>(ResourceManager<instrument_id_t, I>::AvailabilityMode(ID)); |
125 |
|
|
} |
126 |
|
|
|
127 |
|
|
virtual void SetMode(const InstrumentManager::instrument_id_t& ID, InstrumentManager::mode_t Mode) { |
128 |
|
|
dmsg(2,("InstrumentManagerBase: setting mode for %s (Index=%d) to %d\n",ID.FileName.c_str(),ID.Index,Mode)); |
129 |
|
|
SetAvailabilityMode(ID, static_cast<typename ResourceManager<instrument_id_t, I>::mode_t>(Mode)); |
130 |
|
|
} |
131 |
schoenebeck |
2275 |
|
132 |
|
|
/** |
133 |
|
|
* Used by the implementing instrument manager descendents in case |
134 |
|
|
* they don't have a reference to a sampler channel, which in turn |
135 |
|
|
* provides a reference to an audio device which would actually |
136 |
|
|
* define the maximum amount of sample points per audio render |
137 |
|
|
* cycle. So in those missing cases (e.g. when MIDI instrument maps |
138 |
|
|
* are created), this method will iterate through all already |
139 |
|
|
* existing audio devices and return the biggest max. samples per |
140 |
|
|
* cycle value of those audio devices. |
141 |
|
|
* |
142 |
|
|
* In case no audio device is currently created, this method will |
143 |
|
|
* return a hard coded constant default value. |
144 |
|
|
* |
145 |
|
|
* Background: We need to know the maximum number of sample points |
146 |
|
|
* which are going to be processed for each render cycle of the |
147 |
|
|
* audio output driver, to know how many initial sample points we |
148 |
|
|
* need to cache into RAM by the implementing instrument manager. |
149 |
|
|
*/ |
150 |
|
|
virtual uint DefaultMaxSamplesPerCycle() { |
151 |
|
|
uint samples = 0; |
152 |
|
|
std::map<uint, AudioOutputDevice*> devices = AudioOutputDeviceFactory::Devices(); |
153 |
|
|
for (std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin(); iter != devices.end(); ++iter) { |
154 |
|
|
AudioOutputDevice* pDevice = iter->second; |
155 |
|
|
if (pDevice->MaxSamplesPerCycle() > samples) |
156 |
|
|
samples = pDevice->MaxSamplesPerCycle(); |
157 |
|
|
} |
158 |
|
|
return (samples != 0) ? samples : 128 /* some fallback default value*/; |
159 |
|
|
} |
160 |
iliev |
2012 |
|
161 |
|
|
protected: |
162 |
|
|
Mutex RegionInfoMutex; ///< protects the RegionInfo and SampleRefCount maps from concurrent access by the instrument loader and disk threads |
163 |
|
|
std::map< R*, region_info_t> RegionInfo; ///< contains dimension regions that are still in use but belong to released instrument |
164 |
|
|
std::map< S*, int> SampleRefCount; ///< contains samples that are still in use but belong to a released instrument |
165 |
|
|
|
166 |
|
|
/** |
167 |
|
|
* Caches a certain size at the beginning of the given sample in RAM. If the |
168 |
|
|
* sample is very short, the whole sample will be loaded into RAM and thus |
169 |
|
|
* no disk streaming is needed for this sample. Caching an initial part of |
170 |
|
|
* samples is needed to compensate disk reading latency. |
171 |
|
|
* |
172 |
|
|
* @param pSample - points to the sample to be cached |
173 |
|
|
* @param pEngine - pointer to Engine which caused this call |
174 |
|
|
* (may be NULL, in this case default amount of samples |
175 |
|
|
* will be cached) |
176 |
|
|
*/ |
177 |
|
|
virtual void CacheInitialSamples(S* pSample, AbstractEngine* pEngine) = 0; |
178 |
|
|
|
179 |
|
|
virtual void DeleteRegionIfNotUsed(R* pRegion, region_info_t* pRegInfo) = 0; |
180 |
|
|
virtual void DeleteSampleIfNotUsed(S* pSample, region_info_t* pRegInfo) = 0; |
181 |
|
|
|
182 |
iliev |
2027 |
void SetKeyBindings(uint8_t* bindingsArray, int low, int high, int undefined = -1) { |
183 |
|
|
if (low == undefined || high == undefined) return; |
184 |
|
|
if (low < 0 || low > 127 || high < 0 || high > 127 || low > high) { |
185 |
|
|
std::cerr << "Invalid key range: " << low << " - " << high << std::endl; |
186 |
|
|
return; |
187 |
|
|
} |
188 |
|
|
|
189 |
|
|
for (int i = low; i <= high; i++) bindingsArray[i] = 1; |
190 |
|
|
} |
191 |
|
|
|
192 |
iliev |
2012 |
}; |
193 |
|
|
|
194 |
|
|
template <class F /* Instrument File */, class I /* Instrument */, class R /* Region */, class S /* Sample */> |
195 |
|
|
class InstrumentManagerDefaultImpl : public InstrumentManagerBase<F, I, R, S> { |
196 |
|
|
public: |
197 |
|
|
InstrumentManagerDefaultImpl() { } |
198 |
|
|
virtual ~InstrumentManagerDefaultImpl() { } |
199 |
|
|
protected: |
200 |
|
|
virtual void CacheInitialSamples(S* pSample, AbstractEngine* pEngine) { |
201 |
|
|
if (!pSample) { |
202 |
|
|
dmsg(4,("InstrumentManagerBase: Skipping sample (pSample == NULL)\n")); |
203 |
|
|
return; |
204 |
|
|
} |
205 |
|
|
if (!pSample->GetTotalFrameCount()) return; // skip zero size samples |
206 |
|
|
|
207 |
|
|
if (pSample->GetTotalFrameCount() <= CONFIG_PRELOAD_SAMPLES) { |
208 |
|
|
// Sample is too short for disk streaming, so we load the whole |
209 |
|
|
// sample into RAM and place 'pAudioIO->FragmentSize << CONFIG_MAX_PITCH' |
210 |
|
|
// number of '0' samples (silence samples) behind the official buffer |
211 |
|
|
// border, to allow the interpolator do it's work even at the end of |
212 |
|
|
// the sample. |
213 |
|
|
const uint maxSamplesPerCycle = |
214 |
|
|
(pEngine) ? pEngine->pAudioOutputDevice->MaxSamplesPerCycle() |
215 |
|
|
: GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE; |
216 |
|
|
const uint neededSilenceSamples = (maxSamplesPerCycle << CONFIG_MAX_PITCH) + 3; |
217 |
|
|
const uint currentlyCachedSilenceSamples = pSample->GetCache().NullExtensionSize / pSample->GetFrameSize(); |
218 |
|
|
if (currentlyCachedSilenceSamples < neededSilenceSamples) { |
219 |
|
|
dmsg(3,("Caching whole sample (sample name: \"%s\", sample size: %d)\n", pSample->GetName().c_str(), pSample->GetTotalFrameCount())); |
220 |
|
|
typename S::buffer_t buf = pSample->LoadSampleDataWithNullSamplesExtension(neededSilenceSamples); |
221 |
|
|
dmsg(4,("Cached %d Bytes, %d silence bytes.\n", buf.Size, buf.NullExtensionSize)); |
222 |
|
|
} |
223 |
|
|
} |
224 |
|
|
else { // we only cache CONFIG_PRELOAD_SAMPLES and stream the other sample points from disk |
225 |
|
|
if (!pSample->GetCache().Size) pSample->LoadSampleData(CONFIG_PRELOAD_SAMPLES); |
226 |
|
|
} |
227 |
|
|
|
228 |
|
|
if (!pSample->GetCache().Size) std::cerr << "Unable to cache sample - maybe memory full!" << std::endl << std::flush; |
229 |
|
|
} |
230 |
|
|
|
231 |
|
|
/** |
232 |
|
|
* Just a wrapper around the other @c CacheInitialSamples() method. |
233 |
|
|
* |
234 |
|
|
* @param pSample - points to the sample to be cached |
235 |
|
|
* @param pEngine - pointer to Gig Engine Channel which caused this call |
236 |
|
|
* (may be NULL, in this case default amount of samples |
237 |
|
|
* will be cached) |
238 |
|
|
*/ |
239 |
|
|
virtual void CacheInitialSamples(S* pSample, EngineChannel* pEngineChannel) { |
240 |
|
|
AbstractEngine* pEngine = |
241 |
|
|
(pEngineChannel && pEngineChannel->GetEngine()) ? |
242 |
|
|
dynamic_cast<AbstractEngine*>(pEngineChannel->GetEngine()) : NULL; |
243 |
|
|
CacheInitialSamples(pSample, pEngine); |
244 |
|
|
} |
245 |
|
|
}; |
246 |
|
|
|
247 |
|
|
} // namespace LinuxSampler |
248 |
|
|
|
249 |
persson |
2045 |
#endif // __LS_INSTRUMENTMANAGERBASE_H__ |