/[svn]/linuxsampler/trunk/src/engines/common/InstrumentScriptVM.cpp
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revision 2611 by schoenebeck, Mon Jun 9 19:20:37 2014 UTC revision 2645 by schoenebeck, Wed Jun 18 00:14:57 2014 UTC
# Line 11  Line 11 
11  #include "../AbstractEngineChannel.h"  #include "../AbstractEngineChannel.h"
12  #include "../../common/global_private.h"  #include "../../common/global_private.h"
13  #include "AbstractInstrumentManager.h"  #include "AbstractInstrumentManager.h"
14    #include "MidiKeyboardManager.h"
15    
16  namespace LinuxSampler {  namespace LinuxSampler {
17    
18      ///////////////////////////////////////////////////////////////////////      ///////////////////////////////////////////////////////////////////////
19        // class 'EventGroup'
20    
21        void EventGroup::insert(int eventID) {
22            if (contains(eventID)) return;
23    
24            AbstractEngine* pEngine = m_script->pEngineChannel->pEngine;
25    
26            // before adding the new event ID, check if there are any dead events
27            // and remove them in that case, before otherwise we might run in danger
28            // to run out of free space on this group for event IDs if a lot of
29            // events die before being removed explicitly from the group by script
30            //
31            // NOTE: or should we do this "dead ones" check only once in a while?
32            int firstDead = -1;
33            for (int i = 0; i < size(); ++i) {
34                if (firstDead >= 0) {
35                    if (pEngine->EventByID(eventID)) {
36                        remove(firstDead, i - firstDead);
37                        firstDead = -1;
38                    }
39                } else {
40                    if (!pEngine->EventByID(eventID)) firstDead = i;
41                }
42            }
43    
44            append(eventID);
45        }
46    
47        void EventGroup::erase(int eventID) {
48            int index = find(eventID);
49            remove(index);
50        }
51    
52        ///////////////////////////////////////////////////////////////////////
53      // class 'InstrumentScript'      // class 'InstrumentScript'
54    
55        InstrumentScript::InstrumentScript(AbstractEngineChannel* pEngineChannel) {
56            parserContext = NULL;
57            bHasValidScript = false;
58            handlerInit = NULL;
59            handlerNote = NULL;
60            handlerRelease = NULL;
61            handlerController = NULL;
62            pEvents = NULL;
63            for (int i = 0; i < 128; ++i)
64                pKeyEvents[i] = NULL;
65            this->pEngineChannel = pEngineChannel;
66            for (int i = 0; i < INSTR_SCRIPT_EVENT_GROUPS; ++i)
67                eventGroups[i].setScript(this);
68        }
69    
70        InstrumentScript::~InstrumentScript() {
71            resetAll();
72            if (pEvents) {
73                for (int i = 0; i < 128; ++i) delete pKeyEvents[i];
74                delete pEvents;
75            }
76        }
77    
78      /** @brief Load real-time instrument script.      /** @brief Load real-time instrument script.
79       *       *
80       * Loads the real-time instrument script given by @a text on the engine       * Loads the real-time instrument script given by @a text on the engine
# Line 32  namespace LinuxSampler { Line 90  namespace LinuxSampler {
90    
91          // hand back old script reference and VM execution contexts          // hand back old script reference and VM execution contexts
92          // (if not done already)          // (if not done already)
93          reset();          unload();
94    
95            code = text;
96    
97          AbstractInstrumentManager* pManager =          AbstractInstrumentManager* pManager =
98              dynamic_cast<AbstractInstrumentManager*>(pEngineChannel->pEngine->GetInstrumentManager());              dynamic_cast<AbstractInstrumentManager*>(pEngineChannel->pEngine->GetInstrumentManager());
# Line 61  namespace LinuxSampler { Line 121  namespace LinuxSampler {
121              handlerExecCount++;              handlerExecCount++;
122    
123          // create script event pool (if it doesn't exist already)          // create script event pool (if it doesn't exist already)
124          if (!pEvents)          if (!pEvents) {
125              pEvents = new Pool<ScriptEvent>(CONFIG_MAX_EVENTS_PER_FRAGMENT);              pEvents = new Pool<ScriptEvent>(CONFIG_MAX_EVENTS_PER_FRAGMENT);
126                for (int i = 0; i < 128; ++i)
127                    pKeyEvents[i] = new RTList<ScriptEvent>(pEvents);
128            }
129    
130          // create new VM execution contexts for new script          // create new VM execution contexts for new script
131          while (!pEvents->poolIsEmpty()) {          while (!pEvents->poolIsEmpty()) {
# Line 84  namespace LinuxSampler { Line 147  namespace LinuxSampler {
147       * is used to share equivalent scripts among multiple sampler channels, and       * is used to share equivalent scripts among multiple sampler channels, and
148       * to deallocate the parsed script once not used on any engine channel       * to deallocate the parsed script once not used on any engine channel
149       * anymore.       * anymore.
150         *
151         * Calling this method will however not clear the @c code member variable.
152         * Thus, the script can be parsed again afterwards.
153       */       */
154      void InstrumentScript::reset() {      void InstrumentScript::unload() {
155            //dmsg(1,("InstrumentScript::unload(this=0x%llx)\n", this));
156    
157          if (parserContext)          if (parserContext)
158              dmsg(1,("Unloading current instrument script."));              dmsg(1,("Unloading current instrument script.\n"));
159    
160          // free allocated VM execution contexts          // free allocated VM execution contexts
161          if (pEvents) {          if (pEvents) {
# Line 119  namespace LinuxSampler { Line 187  namespace LinuxSampler {
187          bHasValidScript = false;          bHasValidScript = false;
188      }      }
189    
190        /**
191         * Same as unload(), but this one also empties the @c code member variable
192         * to an empty string.
193         */
194        void InstrumentScript::resetAll() {
195            unload();
196            code.clear();
197        }
198    
199      ///////////////////////////////////////////////////////////////////////      ///////////////////////////////////////////////////////////////////////
200      // class 'InstrumentScriptVM'      // class 'InstrumentScriptVM'
201    
202      InstrumentScriptVM::InstrumentScriptVM() :      InstrumentScriptVM::InstrumentScriptVM() :
203          m_event(NULL), m_fnPlayNote(this), m_fnSetController(this),          m_event(NULL), m_fnPlayNote(this), m_fnSetController(this),
204          m_fnIgnoreEvent(this), m_fnIgnoreController(this)          m_fnIgnoreEvent(this), m_fnIgnoreController(this), m_fnNoteOff(this),
205            m_fnSetEventMark(this), m_fnDeleteEventMark(this), m_fnByMarks(this)
206      {      {
207          m_CC.size = _MEMBER_SIZEOF(AbstractEngineChannel, ControllerTable);          m_CC.size = _MEMBER_SIZEOF(AbstractEngineChannel, ControllerTable);
208          m_CC_NUM = DECLARE_VMINT(m_event, class ScriptEvent, cause.Param.CC.Controller);          m_CC_NUM = DECLARE_VMINT(m_event, class ScriptEvent, cause.Param.CC.Controller);
209          m_EVENT_ID = DECLARE_VMINT(m_event, class ScriptEvent, id);          m_EVENT_ID = DECLARE_VMINT(m_event, class ScriptEvent, id);
210          m_EVENT_NOTE = DECLARE_VMINT(m_event, class ScriptEvent, cause.Param.Note.Key);          m_EVENT_NOTE = DECLARE_VMINT(m_event, class ScriptEvent, cause.Param.Note.Key);
211          m_EVENT_VELOCITY = DECLARE_VMINT(m_event, class ScriptEvent, cause.Param.Note.Velocity);          m_EVENT_VELOCITY = DECLARE_VMINT(m_event, class ScriptEvent, cause.Param.Note.Velocity);
212            m_KEY_DOWN.size = 128;
213      }      }
214    
215      VMExecStatus_t InstrumentScriptVM::exec(VMParserContext* parserCtx, ScriptEvent* event) {      VMExecStatus_t InstrumentScriptVM::exec(VMParserContext* parserCtx, ScriptEvent* event) {
# Line 140  namespace LinuxSampler { Line 219  namespace LinuxSampler {
219          // prepare built-in script variables for script execution          // prepare built-in script variables for script execution
220          m_event = event;          m_event = event;
221          m_CC.data = (int8_t*) &pEngineChannel->ControllerTable[0];          m_CC.data = (int8_t*) &pEngineChannel->ControllerTable[0];
222            m_KEY_DOWN.data = &pEngineChannel->GetMidiKeyboardManager()->KeyDown[0];
223    
224          // if script is in start condition, then do mandatory MIDI event          // if script is in start condition, then do mandatory MIDI event
225          // preprocessing tasks, which essentially means updating i.e. controller          // preprocessing tasks, which essentially means updating i.e. controller
# Line 195  namespace LinuxSampler { Line 275  namespace LinuxSampler {
275    
276          // now add own built-in variables          // now add own built-in variables
277          m["%CC"] = &m_CC;          m["%CC"] = &m_CC;
278          //m["%KEY_DOWN"] = &m_KEY_DOWN;          m["%KEY_DOWN"] = &m_KEY_DOWN;
279          //m["%POLY_AT"] = &m_POLY_AT;          //m["%POLY_AT"] = &m_POLY_AT;
280    
281          return m;          return m;
# Line 207  namespace LinuxSampler { Line 287  namespace LinuxSampler {
287    
288          m["$VCC_MONO_AT"] = CTRL_TABLE_IDX_AFTERTOUCH;          m["$VCC_MONO_AT"] = CTRL_TABLE_IDX_AFTERTOUCH;
289          m["$VCC_PITCH_BEND"] = CTRL_TABLE_IDX_PITCHBEND;          m["$VCC_PITCH_BEND"] = CTRL_TABLE_IDX_PITCHBEND;
290            for (int i = 0; i < INSTR_SCRIPT_EVENT_GROUPS; ++i) {
291                m["$MARK_" + ToString(i+1)] = i;
292            }
293    
294          return m;          return m;
295      }      }
# Line 217  namespace LinuxSampler { Line 300  namespace LinuxSampler {
300          else if (name == "set_controller") return &m_fnSetController;          else if (name == "set_controller") return &m_fnSetController;
301          else if (name == "ignore_event") return &m_fnIgnoreEvent;          else if (name == "ignore_event") return &m_fnIgnoreEvent;
302          else if (name == "ignore_controller") return &m_fnIgnoreController;          else if (name == "ignore_controller") return &m_fnIgnoreController;
303            else if (name == "note_off") return &m_fnNoteOff;
304            else if (name == "set_event_mark") return &m_fnSetEventMark;
305            else if (name == "delete_event_mark") return &m_fnDeleteEventMark;
306            else if (name == "by_marks") return &m_fnByMarks;
307    
308          // built-in script functions of derived VM class          // built-in script functions of derived VM class
309          return ScriptVM::functionByName(name);          return ScriptVM::functionByName(name);
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