23 |
VMFnResult* InstrumentScriptVMFunction_play_note::exec(VMFnArgs* args) { |
VMFnResult* InstrumentScriptVMFunction_play_note::exec(VMFnArgs* args) { |
24 |
int note = args->arg(0)->asInt()->evalInt(); |
int note = args->arg(0)->asInt()->evalInt(); |
25 |
int velocity = (args->argsCount() >= 2) ? args->arg(1)->asInt()->evalInt() : 127; |
int velocity = (args->argsCount() >= 2) ? args->arg(1)->asInt()->evalInt() : 127; |
|
int sampleoffset = (args->argsCount() >= 3) ? args->arg(2)->asInt()->evalInt() : 0; |
|
26 |
int duration = (args->argsCount() >= 4) ? args->arg(3)->asInt()->evalInt() : 0; //TODO: -1 might be a better default value instead of 0 |
int duration = (args->argsCount() >= 4) ? args->arg(3)->asInt()->evalInt() : 0; //TODO: -1 might be a better default value instead of 0 |
27 |
|
|
28 |
if (note < 0 || note > 127) { |
if (note < 0 || note > 127) { |
35 |
return errorResult(0); |
return errorResult(0); |
36 |
} |
} |
37 |
|
|
38 |
if (sampleoffset < 0) { |
if (duration < -2) { |
39 |
errMsg("play_note(): argument 3 may not be a negative sample offset"); |
errMsg("play_note(): argument 4 must be a duration value of at least -2 or higher"); |
|
return errorResult(0); |
|
|
} else if (sampleoffset != 0) { |
|
|
wrnMsg("play_note(): argument 3 does not support a sample offset other than 0 yet"); |
|
|
} |
|
|
|
|
|
if (duration < -1) { |
|
|
errMsg("play_note(): argument 4 must be a duration value of at least -1 or higher"); |
|
40 |
return errorResult(0); |
return errorResult(0); |
41 |
} |
} |
42 |
|
|
55 |
return errorResult(0); |
return errorResult(0); |
56 |
} |
} |
57 |
e.Param.Note.ParentNoteID = m_vm->m_event->cause.Param.Note.ID; |
e.Param.Note.ParentNoteID = m_vm->m_event->cause.Param.Note.ID; |
58 |
|
// check if that requested parent note is actually still alive |
59 |
|
NoteBase* pParentNote = |
60 |
|
pEngineChannel->pEngine->NoteByID( e.Param.Note.ParentNoteID ); |
61 |
|
// if parent note is already gone then this new note is not required anymore |
62 |
|
if (!pParentNote) |
63 |
|
return successResult(0); |
64 |
} |
} |
65 |
|
|
66 |
const note_id_t id = pEngineChannel->ScheduleNoteMicroSec(&e, 0); |
const note_id_t id = pEngineChannel->ScheduleNoteMicroSec(&e, 0); |
67 |
|
|
68 |
|
// if a sample offset is supplied, assign the offset as override |
69 |
|
// to the previously created Note object |
70 |
|
if (args->argsCount() >= 3) { |
71 |
|
int sampleoffset = args->arg(2)->asInt()->evalInt(); |
72 |
|
if (sampleoffset >= 0) { |
73 |
|
NoteBase* pNote = pEngineChannel->pEngine->NoteByID(id); |
74 |
|
if (pNote) { |
75 |
|
pNote->Override.SampleOffset = sampleoffset; |
76 |
|
} |
77 |
|
} else if (sampleoffset < -1) { |
78 |
|
errMsg("play_note(): sample offset of argument 3 may not be less than -1"); |
79 |
|
} |
80 |
|
} |
81 |
|
|
82 |
// if a duration is supplied (and play-note event was scheduled |
// if a duration is supplied (and play-note event was scheduled |
83 |
// successfully above), then schedule a subsequent stop-note event |
// successfully above), then schedule a subsequent stop-note event |
84 |
if (id && duration > 0) { |
if (id && duration > 0) { |
838 |
|
|
839 |
VMFnResult* InstrumentScriptVMFunction_change_attack::exec(VMFnArgs* args) { |
VMFnResult* InstrumentScriptVMFunction_change_attack::exec(VMFnArgs* args) { |
840 |
int attack = args->arg(1)->asInt()->evalInt(); |
int attack = args->arg(1)->asInt()->evalInt(); |
841 |
if (attack > VM_EG_PAR_MAX_VALUE) { |
// note: intentionally not checking against a max. value here! |
842 |
wrnMsg("change_attack(): argument 2 may not be larger than 1000000"); |
// (to allow i.e. passing 2000000 for doubling the attack time) |
843 |
attack = VM_EG_PAR_MAX_VALUE; |
if (attack < 0) { |
|
} else if (attack < 0) { |
|
844 |
wrnMsg("change_attack(): argument 2 may not be negative"); |
wrnMsg("change_attack(): argument 2 may not be negative"); |
845 |
attack = 0; |
attack = 0; |
846 |
} |
} |
924 |
|
|
925 |
VMFnResult* InstrumentScriptVMFunction_change_decay::exec(VMFnArgs* args) { |
VMFnResult* InstrumentScriptVMFunction_change_decay::exec(VMFnArgs* args) { |
926 |
int decay = args->arg(1)->asInt()->evalInt(); |
int decay = args->arg(1)->asInt()->evalInt(); |
927 |
if (decay > VM_EG_PAR_MAX_VALUE) { |
// note: intentionally not checking against a max. value here! |
928 |
wrnMsg("change_decay(): argument 2 may not be larger than 1000000"); |
// (to allow i.e. passing 2000000 for doubling the decay time) |
929 |
decay = VM_EG_PAR_MAX_VALUE; |
if (decay < 0) { |
|
} else if (decay < 0) { |
|
930 |
wrnMsg("change_decay(): argument 2 may not be negative"); |
wrnMsg("change_decay(): argument 2 may not be negative"); |
931 |
decay = 0; |
decay = 0; |
932 |
} |
} |
1010 |
|
|
1011 |
VMFnResult* InstrumentScriptVMFunction_change_release::exec(VMFnArgs* args) { |
VMFnResult* InstrumentScriptVMFunction_change_release::exec(VMFnArgs* args) { |
1012 |
int release = args->arg(1)->asInt()->evalInt(); |
int release = args->arg(1)->asInt()->evalInt(); |
1013 |
if (release > VM_EG_PAR_MAX_VALUE) { |
// note: intentionally not checking against a max. value here! |
1014 |
wrnMsg("change_release(): argument 2 may not be larger than 1000000"); |
// (to allow i.e. passing 2000000 for doubling the release time) |
1015 |
release = VM_EG_PAR_MAX_VALUE; |
if (release < 0) { |
|
} else if (release < 0) { |
|
1016 |
wrnMsg("change_release(): argument 2 may not be negative"); |
wrnMsg("change_release(): argument 2 may not be negative"); |
1017 |
release = 0; |
release = 0; |
1018 |
} |
} |
1802 |
return successResult(); |
return successResult(); |
1803 |
} |
} |
1804 |
|
|
1805 |
|
// change_play_pos() function |
1806 |
|
|
1807 |
|
InstrumentScriptVMFunction_change_play_pos::InstrumentScriptVMFunction_change_play_pos(InstrumentScriptVM* parent) |
1808 |
|
: m_vm(parent) |
1809 |
|
{ |
1810 |
|
} |
1811 |
|
|
1812 |
|
VMFnResult* InstrumentScriptVMFunction_change_play_pos::exec(VMFnArgs* args) { |
1813 |
|
const ScriptID id = args->arg(0)->asInt()->evalInt(); |
1814 |
|
if (!id) { |
1815 |
|
wrnMsg("change_play_pos(): note ID for argument 1 may not be zero"); |
1816 |
|
return successResult(); |
1817 |
|
} |
1818 |
|
if (!id.isNoteID()) { |
1819 |
|
wrnMsg("change_play_pos(): argument 1 is not a note ID"); |
1820 |
|
return successResult(); |
1821 |
|
} |
1822 |
|
|
1823 |
|
const int pos = args->arg(1)->asInt()->evalInt(); |
1824 |
|
if (pos < 0) { |
1825 |
|
wrnMsg("change_play_pos(): playback position of argument 2 may not be negative"); |
1826 |
|
return successResult(); |
1827 |
|
} |
1828 |
|
|
1829 |
|
AbstractEngineChannel* pEngineChannel = |
1830 |
|
static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel); |
1831 |
|
|
1832 |
|
NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); |
1833 |
|
if (!pNote) return successResult(); |
1834 |
|
|
1835 |
|
pNote->Override.SampleOffset = pos; |
1836 |
|
|
1837 |
|
return successResult(); |
1838 |
|
} |
1839 |
|
|
1840 |
// event_status() function |
// event_status() function |
1841 |
|
|
1842 |
InstrumentScriptVMFunction_event_status::InstrumentScriptVMFunction_event_status(InstrumentScriptVM* parent) |
InstrumentScriptVMFunction_event_status::InstrumentScriptVMFunction_event_status(InstrumentScriptVM* parent) |
1862 |
return successResult(pNote ? EVENT_STATUS_NOTE_QUEUE : EVENT_STATUS_INACTIVE); |
return successResult(pNote ? EVENT_STATUS_NOTE_QUEUE : EVENT_STATUS_INACTIVE); |
1863 |
} |
} |
1864 |
|
|
1865 |
|
// callback_status() function |
1866 |
|
|
1867 |
|
InstrumentScriptVMFunction_callback_status::InstrumentScriptVMFunction_callback_status(InstrumentScriptVM* parent) |
1868 |
|
: m_vm(parent) |
1869 |
|
{ |
1870 |
|
} |
1871 |
|
|
1872 |
|
VMFnResult* InstrumentScriptVMFunction_callback_status::exec(VMFnArgs* args) { |
1873 |
|
const script_callback_id_t id = args->arg(0)->asInt()->evalInt(); |
1874 |
|
if (!id) { |
1875 |
|
wrnMsg("callback_status(): callback ID for argument 1 may not be zero"); |
1876 |
|
return successResult(); |
1877 |
|
} |
1878 |
|
|
1879 |
|
AbstractEngineChannel* pEngineChannel = |
1880 |
|
static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel); |
1881 |
|
|
1882 |
|
RTList<ScriptEvent>::Iterator itCallback = pEngineChannel->ScriptCallbackByID(id); |
1883 |
|
if (!itCallback) |
1884 |
|
return successResult(CALLBACK_STATUS_TERMINATED); |
1885 |
|
|
1886 |
|
return successResult( |
1887 |
|
(m_vm->m_event->execCtx == itCallback->execCtx) ? |
1888 |
|
CALLBACK_STATUS_RUNNING : CALLBACK_STATUS_QUEUE |
1889 |
|
); |
1890 |
|
} |
1891 |
|
|
1892 |
// wait() function (overrides core wait() implementation) |
// wait() function (overrides core wait() implementation) |
1893 |
|
|
1894 |
InstrumentScriptVMFunction_wait::InstrumentScriptVMFunction_wait(InstrumentScriptVM* parent) |
InstrumentScriptVMFunction_wait::InstrumentScriptVMFunction_wait(InstrumentScriptVM* parent) |
1935 |
return successResult(); |
return successResult(); |
1936 |
} |
} |
1937 |
|
|
1938 |
|
// abort() function |
1939 |
|
|
1940 |
|
InstrumentScriptVMFunction_abort::InstrumentScriptVMFunction_abort(InstrumentScriptVM* parent) |
1941 |
|
: m_vm(parent) |
1942 |
|
{ |
1943 |
|
} |
1944 |
|
|
1945 |
|
VMFnResult* InstrumentScriptVMFunction_abort::exec(VMFnArgs* args) { |
1946 |
|
const script_callback_id_t id = args->arg(0)->asInt()->evalInt(); |
1947 |
|
if (!id) { |
1948 |
|
wrnMsg("abort(): callback ID for argument 1 may not be zero"); |
1949 |
|
return successResult(); |
1950 |
|
} |
1951 |
|
|
1952 |
|
AbstractEngineChannel* pEngineChannel = |
1953 |
|
static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel); |
1954 |
|
|
1955 |
|
RTList<ScriptEvent>::Iterator itCallback = pEngineChannel->ScriptCallbackByID(id); |
1956 |
|
if (!itCallback) return successResult(); // ignore if callback is i.e. not alive anymore |
1957 |
|
|
1958 |
|
itCallback->execCtx->signalAbort(); |
1959 |
|
|
1960 |
|
return successResult(); |
1961 |
|
} |
1962 |
|
|
1963 |
|
// fork() function |
1964 |
|
|
1965 |
|
InstrumentScriptVMFunction_fork::InstrumentScriptVMFunction_fork(InstrumentScriptVM* parent) |
1966 |
|
: m_vm(parent) |
1967 |
|
{ |
1968 |
|
} |
1969 |
|
|
1970 |
|
VMFnResult* InstrumentScriptVMFunction_fork::exec(VMFnArgs* args) { |
1971 |
|
// check if this is actually the parent going to fork, or rather one of |
1972 |
|
// the children which is already forked |
1973 |
|
if (m_vm->m_event->forkIndex != 0) { // this is the entry point for a child ... |
1974 |
|
int forkResult = m_vm->m_event->forkIndex; |
1975 |
|
// reset so that this child may i.e. also call fork() later on |
1976 |
|
m_vm->m_event->forkIndex = 0; |
1977 |
|
return successResult(forkResult); |
1978 |
|
} |
1979 |
|
|
1980 |
|
// if we are here, then this is the parent, so we must fork this parent |
1981 |
|
|
1982 |
|
const int n = |
1983 |
|
(args->argsCount() >= 1) ? args->arg(0)->asInt()->evalInt() : 1; |
1984 |
|
const bool bAutoAbort = |
1985 |
|
(args->argsCount() >= 2) ? args->arg(1)->asInt()->evalInt() : true; |
1986 |
|
|
1987 |
|
if (m_vm->m_event->countChildHandlers() + n > MAX_FORK_PER_SCRIPT_HANDLER) { |
1988 |
|
wrnMsg("fork(): requested amount would exceed allowed limit per event handler"); |
1989 |
|
return successResult(-1); |
1990 |
|
} |
1991 |
|
|
1992 |
|
AbstractEngineChannel* pEngineChannel = |
1993 |
|
static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel); |
1994 |
|
|
1995 |
|
if (!pEngineChannel->hasFreeScriptCallbacks(n)) { |
1996 |
|
wrnMsg("fork(): global limit of event handlers exceeded"); |
1997 |
|
return successResult(-1); |
1998 |
|
} |
1999 |
|
|
2000 |
|
for (int iChild = 0; iChild < n; ++iChild) { |
2001 |
|
RTList<ScriptEvent>::Iterator itChild = |
2002 |
|
pEngineChannel->forkScriptCallback(m_vm->m_event, bAutoAbort); |
2003 |
|
if (!itChild) { // should never happen, otherwise its a bug ... |
2004 |
|
errMsg("fork(): internal error while allocating child"); |
2005 |
|
return errorResult(-1); // terminate script |
2006 |
|
} |
2007 |
|
// since both parent, as well all child script execution instances |
2008 |
|
// all land in this exect() method, the following is (more or less) |
2009 |
|
// the only feature that lets us distinguish the parent and |
2010 |
|
// respective children from each other in this exect() method |
2011 |
|
itChild->forkIndex = iChild + 1; |
2012 |
|
} |
2013 |
|
|
2014 |
|
return successResult(0); |
2015 |
|
} |
2016 |
|
|
2017 |
} // namespace LinuxSampler |
} // namespace LinuxSampler |