/[svn]/linuxsampler/trunk/src/engines/common/InstrumentScriptVMDynVars.cpp
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Annotation of /linuxsampler/trunk/src/engines/common/InstrumentScriptVMDynVars.cpp

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Revision 3293 - (hide annotations) (download)
Tue Jun 27 22:19:19 2017 UTC (6 years, 10 months ago) by schoenebeck
File size: 3445 byte(s)
* NKSP: Added built-in script function "fork()".
* NKSP: Added built-in array variable %NKSP_CALLBACK_CHILD_ID[].
* NKSP: Added built-in variable $NKSP_CALLBACK_PARENT_ID.
* NKSP: Fixed potential crash when accessing dynamic built-in
  array variables.
* Bumped version (2.0.0.svn65).

1 schoenebeck 2942 /*
2 schoenebeck 3073 * Copyright (c) 2016 - 2017 Christian Schoenebeck
3 schoenebeck 2942 *
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 "InstrumentScriptVMFunctions.h"
11     #include "InstrumentScriptVMDynVars.h"
12     #include "InstrumentScriptVM.h"
13     #include "../AbstractEngineChannel.h"
14 schoenebeck 3073 #include "../EngineBase.h"
15 schoenebeck 2942
16     namespace LinuxSampler {
17    
18 schoenebeck 3073 // built-in variable $ENGINE_UPTIME
19    
20 schoenebeck 2942 int InstrumentScriptVMDynVar_ENGINE_UPTIME::evalInt() {
21    
22     AbstractEngineChannel* pEngineChannel =
23     static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
24    
25     AbstractEngine* pEngine =
26     static_cast<AbstractEngine*>(pEngineChannel->GetEngine());
27    
28     // engine's official playback time in milliseconds (offline bounce safe)
29     return int( double(pEngine->FrameTime + m_vm->m_event->cause.FragmentPos()) /
30     double(pEngine->SampleRate) * 1000.0 );
31     }
32    
33 schoenebeck 3073 // built-in variable $NI_CALLBACK_ID
34    
35 schoenebeck 2948 int InstrumentScriptVMDynVar_NI_CALLBACK_ID::evalInt() {
36    
37     AbstractEngineChannel* pEngineChannel =
38     static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
39    
40     return pEngineChannel->GetScriptCallbackID(m_vm->m_event);
41     }
42    
43 schoenebeck 3293 // built-in array variable %NKSP_CALLBACK_CHILD_ID[]
44    
45     InstrumentScriptVMDynVar_NKSP_CALLBACK_CHILD_ID::InstrumentScriptVMDynVar_NKSP_CALLBACK_CHILD_ID(InstrumentScriptVM* parent)
46     : m_vm(parent)
47     {
48     }
49    
50     VMIntArrayExpr* InstrumentScriptVMDynVar_NKSP_CALLBACK_CHILD_ID::asIntArray() const {
51     return const_cast<VMIntArrayExpr*>( dynamic_cast<const VMIntArrayExpr*>(this) );
52     }
53    
54     int InstrumentScriptVMDynVar_NKSP_CALLBACK_CHILD_ID::arraySize() const {
55     return m_vm->m_event->countChildHandlers();
56     }
57    
58     int InstrumentScriptVMDynVar_NKSP_CALLBACK_CHILD_ID::evalIntElement(uint i) {
59     if (i >= arraySize()) return 0;
60     return m_vm->m_event->childHandlerID[i];
61     }
62    
63 schoenebeck 3073 // built-in variable %ALL_EVENTS
64    
65     InstrumentScriptVMDynVar_ALL_EVENTS::InstrumentScriptVMDynVar_ALL_EVENTS(InstrumentScriptVM* parent)
66     : m_vm(parent), m_ids(NULL), m_numIDs(0)
67     {
68     m_ids = new note_id_t[GLOBAL_MAX_NOTES];
69     memset(&m_ids[0], 0, GLOBAL_MAX_NOTES * sizeof(note_id_t));
70     }
71    
72     InstrumentScriptVMDynVar_ALL_EVENTS::~InstrumentScriptVMDynVar_ALL_EVENTS() {
73     if (m_ids) delete[] m_ids;
74     }
75    
76     VMIntArrayExpr* InstrumentScriptVMDynVar_ALL_EVENTS::asIntArray() const {
77     const_cast<InstrumentScriptVMDynVar_ALL_EVENTS*>(this)->updateNoteIDs();
78     return const_cast<VMIntArrayExpr*>( dynamic_cast<const VMIntArrayExpr*>(this) );
79     }
80    
81     int InstrumentScriptVMDynVar_ALL_EVENTS::arraySize() const {
82     return m_numIDs;
83     }
84    
85     int InstrumentScriptVMDynVar_ALL_EVENTS::evalIntElement(uint i) {
86     if (i >= m_numIDs) return 0;
87     return m_ids[i];
88     }
89    
90     void InstrumentScriptVMDynVar_ALL_EVENTS::updateNoteIDs() {
91    
92     AbstractEngineChannel* pEngineChannel =
93     static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
94    
95     m_numIDs = pEngineChannel->AllNoteIDs(&m_ids[0], GLOBAL_MAX_NOTES);
96    
97     // translate sampler engine internal note IDs to public script id scope
98     for (uint i = 0; i < m_numIDs; ++i)
99     m_ids[i] = ScriptID::fromNoteID(m_ids[i]);
100     }
101    
102 schoenebeck 2942 } // namespace LinuxSampler

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