26 |
|
|
27 |
#include "../../common/global.h" |
#include "../../common/global.h" |
28 |
|
|
|
#if DEBUG_HEADERS |
|
|
# warning Engine.h included |
|
|
#endif // DEBUG_HEADERS |
|
|
|
|
29 |
#include <map> |
#include <map> |
30 |
|
#include <gig.h> |
31 |
|
|
32 |
#include "EngineGlobals.h" |
#include "EngineGlobals.h" |
33 |
#include "../../common/RingBuffer.h" |
#include "../../common/RingBuffer.h" |
34 |
#include "../../common/Pool.h" |
#include "../../common/Pool.h" |
35 |
|
#include "../../common/ArrayList.h" |
36 |
#include "../../common/ConditionServer.h" |
#include "../../common/ConditionServer.h" |
37 |
#include "../common/Engine.h" |
#include "../common/Engine.h" |
38 |
#include "../common/Event.h" |
#include "../common/Event.h" |
|
#include "../common/BiquadFilter.h" |
|
|
#include "../../lib/fileloader/libgig/gig.h" |
|
39 |
#include "../../network/lscp.h" |
#include "../../network/lscp.h" |
40 |
#include "EngineChannel.h" |
#include "EngineChannel.h" |
41 |
|
|
42 |
|
// identifier of this sampler engine |
43 |
|
#define LS_GIG_ENGINE_NAME "GIG" |
44 |
|
|
45 |
namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
46 |
|
|
47 |
// just symbol prototyping |
// just symbol prototyping |
55 |
* Sampler engine for the Gigasampler format. |
* Sampler engine for the Gigasampler format. |
56 |
*/ |
*/ |
57 |
class Engine : public LinuxSampler::Engine { |
class Engine : public LinuxSampler::Engine { |
58 |
public: |
public: |
59 |
// methods |
// methods |
60 |
Engine(); |
Engine(); |
61 |
~Engine(); |
virtual ~Engine(); |
|
int RenderAudio(LinuxSampler::gig::EngineChannel* pEngineChannel, uint Samples); |
|
62 |
void Connect(AudioOutputDevice* pAudioOut); |
void Connect(AudioOutputDevice* pAudioOut); |
63 |
|
|
64 |
// implementation of abstract methods derived from class 'LinuxSampler::Engine' |
// implementation of abstract methods derived from class 'LinuxSampler::Engine' |
65 |
|
virtual int RenderAudio(uint Samples); |
66 |
virtual void SendSysex(void* pData, uint Size); |
virtual void SendSysex(void* pData, uint Size); |
67 |
virtual void Reset(); |
virtual void Reset(); |
68 |
virtual void Enable(); |
virtual void Enable(); |
77 |
virtual String Description(); |
virtual String Description(); |
78 |
virtual String Version(); |
virtual String Version(); |
79 |
virtual String EngineName(); |
virtual String EngineName(); |
80 |
|
|
81 |
//protected: |
static const float* VolumeCurve; ///< Table that maps volume control change values 0..127 to amplitude. Unity gain is at 90. |
82 |
|
static const float* PanCurve; ///< Table that maps pan control change values 0..128 to right channel amplitude. Unity gain is at 64 (center). |
83 |
|
|
84 |
|
//protected: |
85 |
static InstrumentResourceManager instruments; |
static InstrumentResourceManager instruments; |
86 |
|
|
87 |
AudioOutputDevice* pAudioOutputDevice; |
AudioOutputDevice* pAudioOutputDevice; |
88 |
uint SampleRate; ///< Sample rate of the engines output audio signal (in Hz) |
uint SampleRate; ///< Sample rate of the engines output audio signal (in Hz) |
89 |
uint MaxSamplesPerCycle; ///< Size of each audio output buffer |
uint MaxSamplesPerCycle; ///< Size of each audio output buffer |
90 |
DiskThread* pDiskThread; |
DiskThread* pDiskThread; |
91 |
RingBuffer<Event>* pEventQueue; ///< Input event queue for engine global events (e.g. SysEx messages). |
RingBuffer<Event>* pEventQueue; ///< Input event queue for engine global events (e.g. SysEx messages). |
92 |
Pool<Voice>* pVoicePool; ///< Contains all voices that can be activated. |
Pool<Voice>* pVoicePool; ///< Contains all voices that can be activated. |
93 |
EventGenerator* pEventGenerator; |
EventGenerator* pEventGenerator; |
94 |
RTList<Event>* pVoiceStealingQueue; ///< All voice-launching events which had to be postponed due to free voice shortage. |
RTList<Event>* pVoiceStealingQueue; ///< All voice-launching events which had to be postponed due to free voice shortage. |
95 |
RTList<Event>* pEvents; ///< All events for the current audio fragment. |
RTList<Event>* pGlobalEvents; ///< All engine global events for the current audio fragment (usually only SysEx messages). |
96 |
Pool<Event>* pEventPool; ///< Contains all Event objects that can be used. |
Pool<Event>* pEventPool; ///< Contains all Event objects that can be used. |
|
RTList<Event>* pCCEvents; ///< All control change events for the current audio fragment. |
|
97 |
RingBuffer<uint8_t>* pSysexBuffer; ///< Input buffer for MIDI system exclusive messages. |
RingBuffer<uint8_t>* pSysexBuffer; ///< Input buffer for MIDI system exclusive messages. |
98 |
RTList<Event>* pSynthesisEvents[Event::destination_count]; ///< Events directly affecting synthesis parameter (like pitch, volume and filter). |
int ActiveVoiceCount; ///< number of currently active voices (this value will be returned for public calls) |
99 |
float* pSynthesisParameters[Event::destination_count]; ///< Matrix with final synthesis parameters for the current audio fragment which will be used in the main synthesis loop. |
int ActiveVoiceCountTemp; ///< number of currently active voices (for internal usage, will be used for incrementation) |
|
biquad_param_t* pBasicFilterParameters; ///< Biquad parameters of the basic bandpass filter. |
|
|
biquad_param_t* pMainFilterParameters; ///< Main biquad parameters of the individual filter (lowpass / bandpass / highpass). |
|
|
int ActiveVoiceCount; ///< number of currently active voices |
|
100 |
int ActiveVoiceCountMax; ///< the maximum voice usage since application start |
int ActiveVoiceCountMax; ///< the maximum voice usage since application start |
101 |
|
int VoiceSpawnsLeft; ///< We only allow CONFIG_MAX_VOICES voices to be spawned per audio fragment, we use this variable to ensure this limit. |
102 |
|
RTList<Voice>::Iterator itLastStolenVoice; ///< Only for voice stealing: points to the last voice which was theft in current audio fragment, NULL otherwise. |
103 |
|
RTList<uint>::Iterator iuiLastStolenKey; ///< Only for voice stealing: key number of last key on which the last voice was theft in current audio fragment, NULL otherwise. |
104 |
|
EngineChannel* pLastStolenChannel; ///< Only for voice stealing: points to the engine channel on which the previous voice was stolen in this audio fragment. |
105 |
|
RTList<Voice>::Iterator itLastStolenVoiceGlobally; ///< Same as itLastStolenVoice, but engine globally |
106 |
|
RTList<uint>::Iterator iuiLastStolenKeyGlobally; ///< Same as iuiLastStolenKey, but engine globally |
107 |
bool SuspensionRequested; |
bool SuspensionRequested; |
108 |
ConditionServer EngineDisabled; |
ConditionServer EngineDisabled; |
109 |
int8_t ScaleTuning[12]; ///< contains optional detune factors (-64..+63 cents) for all 12 semitones of an octave |
int8_t ScaleTuning[12]; ///< contains optional detune factors (-64..+63 cents) for all 12 semitones of an octave |
|
RTList<Voice>::Iterator itLastStolenVoice; ///< Only for voice stealing: points to the last voice which was theft in current audio fragment, NULL otherwise. |
|
|
RTList<uint>::Iterator iuiLastStolenKey; ///< Only for voice stealing: key number of last key on which the last voice was theft in current audio fragment, NULL otherwise. |
|
110 |
int MaxFadeOutPos; ///< The last position in an audio fragment to allow an instant fade out (e.g. for voice stealing) without leading to clicks. |
int MaxFadeOutPos; ///< The last position in an audio fragment to allow an instant fade out (e.g. for voice stealing) without leading to clicks. |
111 |
|
uint32_t RandomSeed; ///< State of the random number generator used by the random dimension. |
112 |
|
|
113 |
|
void ProcessEvents(EngineChannel* pEngineChannel, uint Samples); |
114 |
|
void RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples); |
115 |
|
void RenderStolenVoices(uint Samples); |
116 |
|
void PostProcess(EngineChannel* pEngineChannel); |
117 |
|
void ClearEventLists(); |
118 |
|
void ImportEvents(uint Samples); |
119 |
void ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent); |
void ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent); |
120 |
void ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent); |
void ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent); |
121 |
void ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent); |
void ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent); |
122 |
void ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent); |
void ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent); |
123 |
void ProcessSysex(Pool<Event>::Iterator& itSysexEvent); |
void ProcessSysex(Pool<Event>::Iterator& itSysexEvent); |
124 |
Pool<Voice>::Iterator LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing); |
Pool<Voice>::Iterator LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing, bool HandleKeyGroupConflicts); |
125 |
void StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent); |
int StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent); |
126 |
void FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice); |
void FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice); |
127 |
void FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey); |
void FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey); |
|
void ResetSynthesisParameters(Event::destination_t dst, float val); |
|
128 |
void ResetInternal(); |
void ResetInternal(); |
129 |
|
void ResetScaleTuning(); |
130 |
|
|
131 |
static Engine* AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice); |
static Engine* AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice); |
132 |
static void FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice); |
static void FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice); |
134 |
void DisableAndLock(); // FIXME: should at least be protected |
void DisableAndLock(); // FIXME: should at least be protected |
135 |
|
|
136 |
friend class Voice; |
friend class Voice; |
|
friend class EGADSR; |
|
|
friend class EGDecay; |
|
|
friend class VCAManipulator; |
|
|
friend class VCFCManipulator; |
|
|
friend class VCOManipulator; |
|
137 |
private: |
private: |
138 |
std::list<EngineChannel*> samplerChannels; ///< All sampler channels of a gig::Engine instance. |
ArrayList<EngineChannel*> engineChannels; ///< All engine channels of a gig::Engine instance. |
139 |
|
|
140 |
static std::map<AudioOutputDevice*,Engine*> engines; ///< All instances of gig::Engine. |
static std::map<AudioOutputDevice*,Engine*> engines; ///< All instances of gig::Engine. |
141 |
|
|
142 |
|
int SostenutoKeys[128]; |
143 |
|
int SostenutoKeyCount; |
144 |
|
|
145 |
uint8_t GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize); |
uint8_t GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize); |
146 |
void AdjustScale(int8_t ScaleTunes[12]); |
void AdjustScale(int8_t ScaleTunes[12]); |
147 |
|
void ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent); |
148 |
|
void KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent); |
149 |
|
bool ShouldReleaseVoice(EngineChannel* pEngineChannel, int Key); |
150 |
|
static float* InitVolumeCurve(); |
151 |
|
static float* InitPanCurve(); |
152 |
|
static float* InitCurve(const float* segments, int size = 128); |
153 |
|
|
154 |
|
unsigned long FrameTime; ///< Time in frames of the start of the current audio fragment |
155 |
}; |
}; |
156 |
|
|
157 |
}} // namespace LinuxSampler::gig |
}} // namespace LinuxSampler::gig |