1 |
schoenebeck |
2594 |
/* |
2 |
schoenebeck |
2871 |
* Copyright (c) 2014 - 2016 Christian Schoenebeck |
3 |
schoenebeck |
2594 |
* |
4 |
|
|
* http://www.linuxsampler.org |
5 |
|
|
* |
6 |
|
|
* This file is part of LinuxSampler and released under the same terms. |
7 |
|
|
* See README file for details. |
8 |
|
|
*/ |
9 |
|
|
|
10 |
|
|
#include "InstrumentScriptVM.h" |
11 |
|
|
#include "../AbstractEngineChannel.h" |
12 |
schoenebeck |
2600 |
#include "../../common/global_private.h" |
13 |
schoenebeck |
2611 |
#include "AbstractInstrumentManager.h" |
14 |
schoenebeck |
2613 |
#include "MidiKeyboardManager.h" |
15 |
schoenebeck |
2594 |
|
16 |
|
|
namespace LinuxSampler { |
17 |
|
|
|
18 |
schoenebeck |
2611 |
/////////////////////////////////////////////////////////////////////// |
19 |
schoenebeck |
2630 |
// 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 |
schoenebeck |
2611 |
// class 'InstrumentScript' |
54 |
|
|
|
55 |
schoenebeck |
2630 |
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 |
schoenebeck |
2645 |
for (int i = 0; i < 128; ++i) |
64 |
|
|
pKeyEvents[i] = NULL; |
65 |
schoenebeck |
2630 |
this->pEngineChannel = pEngineChannel; |
66 |
|
|
for (int i = 0; i < INSTR_SCRIPT_EVENT_GROUPS; ++i) |
67 |
|
|
eventGroups[i].setScript(this); |
68 |
|
|
} |
69 |
|
|
|
70 |
schoenebeck |
2645 |
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 |
schoenebeck |
2611 |
/** @brief Load real-time instrument script. |
79 |
|
|
* |
80 |
|
|
* Loads the real-time instrument script given by @a text on the engine |
81 |
|
|
* channel this InstrumentScript object belongs to (defined by |
82 |
|
|
* pEngineChannel member variable). The sampler engine's resource manager is |
83 |
|
|
* used to allocate and share equivalent scripts on multiple engine |
84 |
|
|
* channels. |
85 |
|
|
* |
86 |
|
|
* @param text - source code of script |
87 |
|
|
*/ |
88 |
|
|
void InstrumentScript::load(const String& text) { |
89 |
|
|
dmsg(1,("Loading real-time instrument script ... ")); |
90 |
|
|
|
91 |
|
|
// hand back old script reference and VM execution contexts |
92 |
|
|
// (if not done already) |
93 |
schoenebeck |
2612 |
unload(); |
94 |
schoenebeck |
2611 |
|
95 |
schoenebeck |
2612 |
code = text; |
96 |
|
|
|
97 |
schoenebeck |
2611 |
AbstractInstrumentManager* pManager = |
98 |
|
|
dynamic_cast<AbstractInstrumentManager*>(pEngineChannel->pEngine->GetInstrumentManager()); |
99 |
|
|
|
100 |
|
|
// get new script reference |
101 |
|
|
parserContext = pManager->scripts.Borrow(text, pEngineChannel); |
102 |
|
|
if (!parserContext->errors().empty()) { |
103 |
|
|
std::vector<ParserIssue> errors = parserContext->errors(); |
104 |
|
|
std::cerr << "[ScriptVM] Could not load instrument script, there were " |
105 |
|
|
<< errors.size() << " parser errors:\n"; |
106 |
|
|
for (int i = 0; i < errors.size(); ++i) |
107 |
|
|
errors[i].dump(); |
108 |
|
|
return; // stop here if there were any parser errors |
109 |
|
|
} |
110 |
|
|
|
111 |
|
|
handlerInit = parserContext->eventHandlerByName("init"); |
112 |
|
|
handlerNote = parserContext->eventHandlerByName("note"); |
113 |
|
|
handlerRelease = parserContext->eventHandlerByName("release"); |
114 |
|
|
handlerController = parserContext->eventHandlerByName("controller"); |
115 |
|
|
bHasValidScript = |
116 |
|
|
handlerInit || handlerNote || handlerRelease || handlerController; |
117 |
|
|
|
118 |
|
|
// amount of script handlers each script event has to execute |
119 |
|
|
int handlerExecCount = 0; |
120 |
|
|
if (handlerNote || handlerRelease || handlerController) // only one of these are executed after "init" handler |
121 |
|
|
handlerExecCount++; |
122 |
|
|
|
123 |
|
|
// create script event pool (if it doesn't exist already) |
124 |
schoenebeck |
2645 |
if (!pEvents) { |
125 |
schoenebeck |
2611 |
pEvents = new Pool<ScriptEvent>(CONFIG_MAX_EVENTS_PER_FRAGMENT); |
126 |
schoenebeck |
2645 |
for (int i = 0; i < 128; ++i) |
127 |
|
|
pKeyEvents[i] = new RTList<ScriptEvent>(pEvents); |
128 |
|
|
} |
129 |
schoenebeck |
2611 |
|
130 |
|
|
// create new VM execution contexts for new script |
131 |
|
|
while (!pEvents->poolIsEmpty()) { |
132 |
|
|
RTList<ScriptEvent>::Iterator it = pEvents->allocAppend(); |
133 |
|
|
it->execCtx = pEngineChannel->pEngine->pScriptVM->createExecContext( |
134 |
|
|
parserContext |
135 |
|
|
); |
136 |
|
|
it->handlers = new VMEventHandler*[handlerExecCount+1]; |
137 |
|
|
} |
138 |
|
|
pEvents->clear(); |
139 |
|
|
|
140 |
|
|
dmsg(1,("Done\n")); |
141 |
|
|
} |
142 |
|
|
|
143 |
|
|
/** @brief Unload real-time instrument script. |
144 |
|
|
* |
145 |
|
|
* Unloads the currently used real-time instrument script and frees all |
146 |
|
|
* resources allocated for that script. The sampler engine's resource manager |
147 |
|
|
* is used to share equivalent scripts among multiple sampler channels, and |
148 |
|
|
* to deallocate the parsed script once not used on any engine channel |
149 |
|
|
* anymore. |
150 |
schoenebeck |
2612 |
* |
151 |
schoenebeck |
2614 |
* Calling this method will however not clear the @c code member variable. |
152 |
schoenebeck |
2612 |
* Thus, the script can be parsed again afterwards. |
153 |
schoenebeck |
2611 |
*/ |
154 |
schoenebeck |
2612 |
void InstrumentScript::unload() { |
155 |
schoenebeck |
2618 |
//dmsg(1,("InstrumentScript::unload(this=0x%llx)\n", this)); |
156 |
|
|
|
157 |
schoenebeck |
2611 |
if (parserContext) |
158 |
schoenebeck |
2612 |
dmsg(1,("Unloading current instrument script.\n")); |
159 |
schoenebeck |
2611 |
|
160 |
schoenebeck |
2871 |
resetEvents(); |
161 |
|
|
|
162 |
schoenebeck |
2611 |
// free allocated VM execution contexts |
163 |
|
|
if (pEvents) { |
164 |
|
|
pEvents->clear(); |
165 |
|
|
while (!pEvents->poolIsEmpty()) { |
166 |
|
|
RTList<ScriptEvent>::Iterator it = pEvents->allocAppend(); |
167 |
|
|
if (it->execCtx) { |
168 |
|
|
// free VM execution context object |
169 |
|
|
delete it->execCtx; |
170 |
|
|
it->execCtx = NULL; |
171 |
|
|
// free C array of handler pointers |
172 |
|
|
delete [] it->handlers; |
173 |
|
|
} |
174 |
|
|
} |
175 |
|
|
pEvents->clear(); |
176 |
|
|
} |
177 |
|
|
// hand back VM representation of script |
178 |
|
|
if (parserContext) { |
179 |
|
|
AbstractInstrumentManager* pManager = |
180 |
|
|
dynamic_cast<AbstractInstrumentManager*>(pEngineChannel->pEngine->GetInstrumentManager()); |
181 |
|
|
|
182 |
|
|
pManager->scripts.HandBack(parserContext, pEngineChannel); |
183 |
|
|
parserContext = NULL; |
184 |
|
|
handlerInit = NULL; |
185 |
|
|
handlerNote = NULL; |
186 |
|
|
handlerRelease = NULL; |
187 |
|
|
handlerController = NULL; |
188 |
|
|
} |
189 |
|
|
bHasValidScript = false; |
190 |
|
|
} |
191 |
|
|
|
192 |
schoenebeck |
2612 |
/** |
193 |
|
|
* Same as unload(), but this one also empties the @c code member variable |
194 |
|
|
* to an empty string. |
195 |
|
|
*/ |
196 |
|
|
void InstrumentScript::resetAll() { |
197 |
|
|
unload(); |
198 |
|
|
code.clear(); |
199 |
|
|
} |
200 |
schoenebeck |
2871 |
|
201 |
|
|
/** |
202 |
|
|
* Clears all currently active script events. This should be called |
203 |
|
|
* whenever the engine or engine channel was reset for some reason. |
204 |
|
|
*/ |
205 |
|
|
void InstrumentScript::resetEvents() { |
206 |
|
|
for (int i = 0; i < INSTR_SCRIPT_EVENT_GROUPS; ++i) |
207 |
|
|
eventGroups[i].clear(); |
208 |
schoenebeck |
2612 |
|
209 |
schoenebeck |
2871 |
for (int i = 0; i < 128; ++i) |
210 |
|
|
if (pKeyEvents[i]) |
211 |
|
|
pKeyEvents[i]->clear(); |
212 |
|
|
|
213 |
|
|
suspendedEvents.clear(); |
214 |
|
|
|
215 |
|
|
if (pEvents) pEvents->clear(); |
216 |
|
|
} |
217 |
|
|
|
218 |
schoenebeck |
2611 |
/////////////////////////////////////////////////////////////////////// |
219 |
|
|
// class 'InstrumentScriptVM' |
220 |
|
|
|
221 |
schoenebeck |
2596 |
InstrumentScriptVM::InstrumentScriptVM() : |
222 |
schoenebeck |
2600 |
m_event(NULL), m_fnPlayNote(this), m_fnSetController(this), |
223 |
schoenebeck |
2630 |
m_fnIgnoreEvent(this), m_fnIgnoreController(this), m_fnNoteOff(this), |
224 |
|
|
m_fnSetEventMark(this), m_fnDeleteEventMark(this), m_fnByMarks(this) |
225 |
schoenebeck |
2596 |
{ |
226 |
schoenebeck |
2595 |
m_CC.size = _MEMBER_SIZEOF(AbstractEngineChannel, ControllerTable); |
227 |
schoenebeck |
2598 |
m_CC_NUM = DECLARE_VMINT(m_event, class ScriptEvent, cause.Param.CC.Controller); |
228 |
|
|
m_EVENT_ID = DECLARE_VMINT(m_event, class ScriptEvent, id); |
229 |
|
|
m_EVENT_NOTE = DECLARE_VMINT(m_event, class ScriptEvent, cause.Param.Note.Key); |
230 |
|
|
m_EVENT_VELOCITY = DECLARE_VMINT(m_event, class ScriptEvent, cause.Param.Note.Velocity); |
231 |
schoenebeck |
2613 |
m_KEY_DOWN.size = 128; |
232 |
schoenebeck |
2594 |
} |
233 |
|
|
|
234 |
|
|
VMExecStatus_t InstrumentScriptVM::exec(VMParserContext* parserCtx, ScriptEvent* event) { |
235 |
|
|
AbstractEngineChannel* pEngineChannel = |
236 |
|
|
static_cast<AbstractEngineChannel*>(event->cause.pEngineChannel); |
237 |
|
|
|
238 |
|
|
// prepare built-in script variables for script execution |
239 |
schoenebeck |
2598 |
m_event = event; |
240 |
schoenebeck |
2594 |
m_CC.data = (int8_t*) &pEngineChannel->ControllerTable[0]; |
241 |
schoenebeck |
2613 |
m_KEY_DOWN.data = &pEngineChannel->GetMidiKeyboardManager()->KeyDown[0]; |
242 |
schoenebeck |
2594 |
|
243 |
|
|
// if script is in start condition, then do mandatory MIDI event |
244 |
|
|
// preprocessing tasks, which essentially means updating i.e. controller |
245 |
|
|
// table with new CC value in case of a controller event, because the |
246 |
|
|
// script might access the new CC value |
247 |
|
|
if (!event->executionSlices) { |
248 |
schoenebeck |
2598 |
switch (event->cause.Type) { |
249 |
schoenebeck |
2594 |
case Event::type_control_change: |
250 |
schoenebeck |
2598 |
pEngineChannel->ControllerTable[event->cause.Param.CC.Controller] = |
251 |
|
|
event->cause.Param.CC.Value; |
252 |
schoenebeck |
2594 |
break; |
253 |
|
|
case Event::type_channel_pressure: |
254 |
|
|
pEngineChannel->ControllerTable[CTRL_TABLE_IDX_AFTERTOUCH] = |
255 |
schoenebeck |
2598 |
event->cause.Param.ChannelPressure.Value; |
256 |
schoenebeck |
2594 |
break; |
257 |
|
|
case Event::type_pitchbend: |
258 |
|
|
pEngineChannel->ControllerTable[CTRL_TABLE_IDX_PITCHBEND] = |
259 |
schoenebeck |
2598 |
event->cause.Param.Pitch.Pitch; |
260 |
schoenebeck |
2594 |
break; |
261 |
|
|
} |
262 |
|
|
} |
263 |
|
|
|
264 |
|
|
// run the script handler(s) |
265 |
|
|
VMExecStatus_t res = VM_EXEC_NOT_RUNNING; |
266 |
schoenebeck |
2596 |
for ( ; event->handlers[event->currentHandler]; event->currentHandler++) { |
267 |
schoenebeck |
2594 |
res = ScriptVM::exec( |
268 |
schoenebeck |
2596 |
parserCtx, event->execCtx, event->handlers[event->currentHandler] |
269 |
schoenebeck |
2594 |
); |
270 |
|
|
event->executionSlices++; |
271 |
|
|
if (res & VM_EXEC_SUSPENDED || res & VM_EXEC_ERROR) return res; |
272 |
|
|
} |
273 |
|
|
|
274 |
|
|
return res; |
275 |
|
|
} |
276 |
|
|
|
277 |
|
|
std::map<String,VMIntRelPtr*> InstrumentScriptVM::builtInIntVariables() { |
278 |
|
|
// first get buil-in integer variables of derived VM class |
279 |
|
|
std::map<String,VMIntRelPtr*> m = ScriptVM::builtInIntVariables(); |
280 |
|
|
|
281 |
|
|
// now add own built-in variables |
282 |
|
|
m["$CC_NUM"] = &m_CC_NUM; |
283 |
schoenebeck |
2598 |
m["$EVENT_ID"] = &m_EVENT_ID; |
284 |
schoenebeck |
2594 |
m["$EVENT_NOTE"] = &m_EVENT_NOTE; |
285 |
|
|
m["$EVENT_VELOCITY"] = &m_EVENT_VELOCITY; |
286 |
|
|
// m["$POLY_AT_NUM"] = &m_POLY_AT_NUM; |
287 |
|
|
|
288 |
|
|
return m; |
289 |
|
|
} |
290 |
|
|
|
291 |
|
|
std::map<String,VMInt8Array*> InstrumentScriptVM::builtInIntArrayVariables() { |
292 |
|
|
// first get buil-in integer array variables of derived VM class |
293 |
|
|
std::map<String,VMInt8Array*> m = ScriptVM::builtInIntArrayVariables(); |
294 |
|
|
|
295 |
|
|
// now add own built-in variables |
296 |
|
|
m["%CC"] = &m_CC; |
297 |
schoenebeck |
2613 |
m["%KEY_DOWN"] = &m_KEY_DOWN; |
298 |
schoenebeck |
2594 |
//m["%POLY_AT"] = &m_POLY_AT; |
299 |
|
|
|
300 |
|
|
return m; |
301 |
|
|
} |
302 |
|
|
|
303 |
|
|
std::map<String,int> InstrumentScriptVM::builtInConstIntVariables() { |
304 |
|
|
// first get buil-in integer variables of derived VM class |
305 |
|
|
std::map<String,int> m = ScriptVM::builtInConstIntVariables(); |
306 |
|
|
|
307 |
|
|
m["$VCC_MONO_AT"] = CTRL_TABLE_IDX_AFTERTOUCH; |
308 |
|
|
m["$VCC_PITCH_BEND"] = CTRL_TABLE_IDX_PITCHBEND; |
309 |
schoenebeck |
2630 |
for (int i = 0; i < INSTR_SCRIPT_EVENT_GROUPS; ++i) { |
310 |
|
|
m["$MARK_" + ToString(i+1)] = i; |
311 |
|
|
} |
312 |
schoenebeck |
2594 |
|
313 |
|
|
return m; |
314 |
|
|
} |
315 |
|
|
|
316 |
schoenebeck |
2596 |
VMFunction* InstrumentScriptVM::functionByName(const String& name) { |
317 |
|
|
// built-in script functions of this class |
318 |
schoenebeck |
2598 |
if (name == "play_note") return &m_fnPlayNote; |
319 |
schoenebeck |
2600 |
else if (name == "set_controller") return &m_fnSetController; |
320 |
schoenebeck |
2598 |
else if (name == "ignore_event") return &m_fnIgnoreEvent; |
321 |
|
|
else if (name == "ignore_controller") return &m_fnIgnoreController; |
322 |
schoenebeck |
2629 |
else if (name == "note_off") return &m_fnNoteOff; |
323 |
schoenebeck |
2630 |
else if (name == "set_event_mark") return &m_fnSetEventMark; |
324 |
|
|
else if (name == "delete_event_mark") return &m_fnDeleteEventMark; |
325 |
|
|
else if (name == "by_marks") return &m_fnByMarks; |
326 |
schoenebeck |
2596 |
|
327 |
|
|
// built-in script functions of derived VM class |
328 |
|
|
return ScriptVM::functionByName(name); |
329 |
|
|
} |
330 |
|
|
|
331 |
schoenebeck |
2594 |
} // namespace LinuxSampler |