src/plugin/linuxsamplerplugin.cpp

/*
 * Copyright (C) 2007 - 2017 Andreas Persson
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with program; see the file COPYING. If not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

#include "linuxsamplerplugin.h"

#ifdef LIBLINUXSAMPLER_HEADER_FILE
# include LIBLINUXSAMPLER_HEADER_FILE(plugins/InstrumentEditorFactory.h)
# include LIBLINUXSAMPLER_HEADER_FILE(engines/Engine.h)
# include LIBLINUXSAMPLER_HEADER_FILE(engines/EngineChannel.h)
#else
# include <linuxsampler/plugins/InstrumentEditorFactory.h>
# include <linuxsampler/engines/Engine.h>
# include <linuxsampler/engines/EngineChannel.h>
#endif

#include "../gigedit/gigedit.h"
#include "../gigedit/global.h"

#include <iostream>
#include <sigc++/bind.h>
#include <glibmm/main.h>
#include <set>

REGISTER_INSTRUMENT_EDITOR(LinuxSamplerPlugin)

struct LSPluginPrivate {
    std::set<gig::Region*> debounceRegionChange;
    bool debounceRegionChangedScheduled;

    LSPluginPrivate() {
        debounceRegionChangedScheduled = false;
    }
};

LinuxSamplerPlugin::LinuxSamplerPlugin() {
    pApp = new GigEdit;
    priv = new LSPluginPrivate;
}

LinuxSamplerPlugin::~LinuxSamplerPlugin() {
    if (pApp) delete static_cast<GigEdit*>(pApp);
    if (priv) delete priv;
}

int LinuxSamplerPlugin::Main(void* pInstrument, String sTypeName, String sTypeVersion, void* /*pUserData*/) {
    return Main(pInstrument, sTypeName, sTypeVersion);
}

int LinuxSamplerPlugin::Main(void* pInstrument, String sTypeName, String sTypeVersion) {
    std::cout << "Entered Gigedit Main() loop :)\n" << std::flush;
    gig::Instrument* pGigInstr = static_cast<gig::Instrument*>(pInstrument);
    GigEdit* app = static_cast<GigEdit*>(pApp);

    // connect notification signals
    app->signal_file_structure_to_be_changed().connect(
        sigc::bind(
            sigc::mem_fun(
                *this, &LinuxSamplerPlugin::NotifyDataStructureToBeChanged
            ),
            "gig::File"
        )
    );
    app->signal_file_structure_changed().connect(
        sigc::bind(
            sigc::mem_fun(
                *this, &LinuxSamplerPlugin::NotifyDataStructureChanged
            ),
            "gig::File"
        )
    );
    app->signal_samples_to_be_removed().connect(
        sigc::mem_fun(*this, &LinuxSamplerPlugin::__onSamplesToBeRemoved)
    );
    app->signal_samples_removed().connect(
        sigc::mem_fun(*this, &LinuxSamplerPlugin::NotifySamplesRemoved)
    );
    app->signal_region_to_be_changed().connect(
        sigc::bind(
            sigc::mem_fun(
                *this, &LinuxSamplerPlugin::NotifyDataStructureToBeChanged
            ),
            "gig::Region"
        )
    );
    app->signal_region_changed().connect(
        sigc::bind(
            sigc::mem_fun(
                *this, &LinuxSamplerPlugin::NotifyDataStructureChanged
            ),
            "gig::Region"
        )
    );
    app->signal_dimreg_to_be_changed().connect(
        // not connected directly anymore ...
        /*sigc::bind(
            sigc::mem_fun(
                *this, &LinuxSamplerPlugin::NotifyDataStructureToBeChanged
            ),
            "gig::DimensionRegion"
        )*/
        // ... because we are doing some event debouncing here :
        sigc::mem_fun(*this, &LinuxSamplerPlugin::__onDimRegionToBeChanged)
    );
    app->signal_dimreg_changed().connect(
        // not connected directly anymore ...
        /*sigc::bind(
            sigc::mem_fun(
                *this, &LinuxSamplerPlugin::NotifyDataStructureChanged
            ),
            "gig::DimensionRegion"
        )*/
        // ... because we are doing some event debouncing here :
        sigc::mem_fun(*this, &LinuxSamplerPlugin::__onDimRegionChanged)
    );
    app->signal_sample_changed().connect(
        sigc::bind(
            sigc::mem_fun(
                *this, &LinuxSamplerPlugin::NotifyDataStructureChanged
            ),
            "gig::Sample"
        )
    );
    app->signal_sample_ref_changed().connect(
        sigc::mem_fun(*this, &LinuxSamplerPlugin::NotifySampleReferenceChanged)
    );

    app->signal_keyboard_key_hit().connect(
        sigc::mem_fun(*this, &LinuxSamplerPlugin::__onVirtualKeyboardKeyHit)
    );
    app->signal_keyboard_key_released().connect(
        sigc::mem_fun(*this, &LinuxSamplerPlugin::__onVirtualKeyboardKeyReleased)
    );
    app->signal_switch_sampler_instrument().connect(
        sigc::mem_fun(*this, &LinuxSamplerPlugin::__requestSamplerToSwitchInstrument)
    );
    app->signal_script_to_be_changed.connect(
        sigc::bind(
            sigc::mem_fun(
                *this, &LinuxSamplerPlugin::NotifyDataStructureToBeChanged
            ),
            "gig::Script"
        )
    );
    app->signal_script_changed.connect(
        sigc::bind(
            sigc::mem_fun(
                *this, &LinuxSamplerPlugin::NotifyDataStructureChanged
            ),
            "gig::Script"
        )
    );

    // register a timeout job to gigedit's main loop, so we can poll the
    // the sampler periodically for MIDI events (I HOPE it works on all
    // archs, because gigedit is actually running in another thread than
    // the one that is calling this timeout handler register code)
    const Glib::RefPtr<Glib::TimeoutSource> timeout_source =
        Glib::TimeoutSource::create(100); // poll every 100ms
    timeout_source->connect(
        sigc::mem_fun(this, &LinuxSamplerPlugin::__onPollPeriod)
    );
    timeout_source->attach(Glib::MainContext::get_default());

    // run gigedit application
    return app->run(pGigInstr);
}

void LinuxSamplerPlugin::__onDimRegionToBeChanged(gig::DimensionRegion* pDimRgn) {
    // instead of sending this signal per dimregion ...
    //NotifyDataStructureToBeChanged(pDimRgn, "gig::DimensionRegion");

    // ... we are rather debouncing those dimregion to be changed events, and
    // instead only send a region to be changed event, which is much faster when
    // changing a very large amount of dimregions.
    if (!pDimRgn) return;
    gig::Region* pRegion = (gig::Region*) pDimRgn->GetParent();
    const bool bIdle = priv->debounceRegionChange.empty();
    bool bRegionLocked = priv->debounceRegionChange.count(pRegion);
    if (!bRegionLocked) {
        if (bIdle)
            printf("DimRgn change event debounce BEGIN (%p)\n", pRegion);
        priv->debounceRegionChange.insert(pRegion);
        NotifyDataStructureToBeChanged(pRegion, "gig::Region");
    }
}

void LinuxSamplerPlugin::__onDimRegionChanged(gig::DimensionRegion* pDimRgn) {
    // like above, not sending this ...
    //NotifyDataStructureChanged(pDimRgn, "gig::DimensionRegion");

    // ... but rather aggressively debounce those dim region changed events and
    // sending a debounced region changed event instead.
    if (!pDimRgn) return;
    if (!priv->debounceRegionChangedScheduled) {
        priv->debounceRegionChangedScheduled = true;
        Glib::signal_idle().connect_once(
            sigc::mem_fun(*this, &LinuxSamplerPlugin::__onDimRegionChangedDebounced),
            Glib::PRIORITY_HIGH_IDLE
        );
    }
}

void LinuxSamplerPlugin::__onDimRegionChangedDebounced() {
    // Note that we are really aggressively unlocking the region here: we are
    // not even bothering whether the amount "changed" events match with the
    // previously sent amount of "to be changed" events, because this handler
    // here is only called when the app's event loop is already idle for a
    // while, which is not the case if the app is still changing instrument
    // parameters (except if the app is i.e. currently showing an error dialog
    // to the user).
    priv->debounceRegionChangedScheduled = false;
    for (std::set<gig::Region*>::const_iterator it = priv->debounceRegionChange.begin();
         it != priv->debounceRegionChange.end(); ++it)
    {
        gig::Region* pRegion = *it;
        NotifyDataStructureChanged(pRegion, "gig::Region");
    }
    priv->debounceRegionChange.clear();
    printf("DimRgn change event debounce END\n");
}

bool LinuxSamplerPlugin::__onPollPeriod() {
    #if HAVE_LINUXSAMPLER_VIRTUAL_MIDI_DEVICE
    GigEdit* app = static_cast<GigEdit*>(pApp);
    if (!NotesChanged()) return true;
    for (int iKey = 0; iKey < 128; iKey++)
        if (NoteChanged(iKey))
            NoteIsActive(iKey) ?
                app->on_note_on_event(iKey, NoteOnVelocity(iKey)) :
                app->on_note_off_event(iKey, NoteOffVelocity(iKey));
    return true;
    #else
    return false;
    #endif
}

void LinuxSamplerPlugin::__onSamplesToBeRemoved(std::list<gig::Sample*> lSamples) {
    // we have to convert the gig::Sample* list to a void* list first
    std::set<void*> samples;
    for (
        std::list<gig::Sample*>::iterator iter = lSamples.begin();
        iter != lSamples.end(); ++iter
    ) samples.insert((void*)*iter);
    // finally send notification to sampler
    NotifySamplesToBeRemoved(samples);
}

void LinuxSamplerPlugin::__onVirtualKeyboardKeyHit(int Key, int Velocity) {
    #if HAVE_LINUXSAMPLER_VIRTUAL_MIDI_DEVICE
    SendNoteOnToSampler(Key, Velocity);
    #endif
}

void LinuxSamplerPlugin::__onVirtualKeyboardKeyReleased(int Key, int Velocity) {
    #if HAVE_LINUXSAMPLER_VIRTUAL_MIDI_DEVICE
    SendNoteOffToSampler(Key, Velocity);
    #endif
}

void LinuxSamplerPlugin::__requestSamplerToSwitchInstrument(gig::Instrument* pInstrument) {
    if (!pInstrument) return;

    LinuxSampler::EngineChannel* pEngineChannel = GetEngineChannel();
    if (!pEngineChannel) return;

    LinuxSampler::Engine* pEngine = pEngineChannel->GetEngine();
    if (!pEngine) return;

    LinuxSampler::InstrumentManager* pInstrumentManager = pEngine->GetInstrumentManager();
    if (!pInstrumentManager) return;

    gig::File* pFile = (gig::File*) pInstrument->GetParent();

    // resolve instrument's index number in its gig file
    int index = -1;
    for (int i = 0; pFile->GetInstrument(i); ++i) {
        if (pFile->GetInstrument(i) == pInstrument) {
            index = i;
            break;
        }
    }
    if (index < 0) return;

    LinuxSampler::InstrumentManager::instrument_id_t id;
    id.FileName = pFile->GetFileName();
    id.Index    = index;
    pInstrumentManager->LoadInstrumentInBackground(id, pEngineChannel);
}

bool LinuxSamplerPlugin::IsTypeSupported(String sTypeName, String sTypeVersion) {
    return sTypeName == gig::libraryName() &&
           sTypeVersion == gig::libraryVersion();
}

String LinuxSamplerPlugin::Name() {
    return "gigedit";
}

String LinuxSamplerPlugin::Version() {
    return VERSION; // gigedit's version
}

String LinuxSamplerPlugin::Description() {
    return "Gigedit is an instrument editor for gig files.";
}
1	schoenebeck	1213	/*
2	schoenebeck	3068	* Copyright (C) 2007 - 2017 Andreas Persson
3	schoenebeck	1213	*
4			* This program is free software; you can redistribute it and/or
5			* modify it under the terms of the GNU General Public License as
6			* published by the Free Software Foundation; either version 2, or (at
7			* your option) any later version.
8			*
9			* This program is distributed in the hope that it will be useful, but
10			* WITHOUT ANY WARRANTY; without even the implied warranty of
11			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12			* General Public License for more details.
13			*
14			* You should have received a copy of the GNU General Public License
15			* along with program; see the file COPYING. If not, write to the Free
16			* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
17			* 02110-1301 USA.
18			*/
19
20			#include "linuxsamplerplugin.h"
21
22	schoenebeck	3068	#ifdef LIBLINUXSAMPLER_HEADER_FILE
23			# include LIBLINUXSAMPLER_HEADER_FILE(plugins/InstrumentEditorFactory.h)
24			# include LIBLINUXSAMPLER_HEADER_FILE(engines/Engine.h)
25			# include LIBLINUXSAMPLER_HEADER_FILE(engines/EngineChannel.h)
26			#else
27			# include <linuxsampler/plugins/InstrumentEditorFactory.h>
28			# include <linuxsampler/engines/Engine.h>
29			# include <linuxsampler/engines/EngineChannel.h>
30			#endif
31
32	schoenebeck	1656	#include "../gigedit/gigedit.h"
33	schoenebeck	1680	#include "../gigedit/global.h"
34	schoenebeck	1213
35			#include <iostream>
36	schoenebeck	1322	#include <sigc++/bind.h>
37	schoenebeck	1656	#include <glibmm/main.h>
38	schoenebeck	3177	#include <set>
39	schoenebeck	1213
40			REGISTER_INSTRUMENT_EDITOR(LinuxSamplerPlugin)
41
42	schoenebeck	3177	struct LSPluginPrivate {
43			std::set<gig::Region*> debounceRegionChange;
44			bool debounceRegionChangedScheduled;
45
46			LSPluginPrivate() {
47			debounceRegionChangedScheduled = false;
48			}
49			};
50
51	schoenebeck	1213	LinuxSamplerPlugin::LinuxSamplerPlugin() {
52	schoenebeck	1654	pApp = new GigEdit;
53	schoenebeck	3177	priv = new LSPluginPrivate;
54	schoenebeck	1213	}
55
56	schoenebeck	1654	LinuxSamplerPlugin::~LinuxSamplerPlugin() {
57	persson	2841	if (pApp) delete static_cast<GigEdit*>(pApp);
58	schoenebeck	3177	if (priv) delete priv;
59	schoenebeck	1654	}
60
61	schoenebeck	1877	int LinuxSamplerPlugin::Main(void* pInstrument, String sTypeName, String sTypeVersion, void* /pUserData/) {
62			return Main(pInstrument, sTypeName, sTypeVersion);
63			}
64
65	schoenebeck	1213	int LinuxSamplerPlugin::Main(void* pInstrument, String sTypeName, String sTypeVersion) {
66			std::cout << "Entered Gigedit Main() loop :)\n" << std::flush;
67			gig::Instrument* pGigInstr = static_cast<gig::Instrument*>(pInstrument);
68	persson	2841	GigEdit* app = static_cast<GigEdit*>(pApp);
69	schoenebeck	1654
70	schoenebeck	1322	// connect notification signals
71	schoenebeck	1654	app->signal_file_structure_to_be_changed().connect(
72	schoenebeck	1322	sigc::bind(
73			sigc::mem_fun(
74			*this, &LinuxSamplerPlugin::NotifyDataStructureToBeChanged
75			),
76			"gig::File"
77			)
78			);
79	schoenebeck	1654	app->signal_file_structure_changed().connect(
80	schoenebeck	1322	sigc::bind(
81			sigc::mem_fun(
82			*this, &LinuxSamplerPlugin::NotifyDataStructureChanged
83			),
84			"gig::File"
85			)
86			);
87	schoenebeck	1654	app->signal_samples_to_be_removed().connect(
88	schoenebeck	1322	sigc::mem_fun(*this, &LinuxSamplerPlugin::__onSamplesToBeRemoved)
89			);
90	schoenebeck	1654	app->signal_samples_removed().connect(
91	schoenebeck	1322	sigc::mem_fun(*this, &LinuxSamplerPlugin::NotifySamplesRemoved)
92			);
93	schoenebeck	1654	app->signal_region_to_be_changed().connect(
94	schoenebeck	1322	sigc::bind(
95			sigc::mem_fun(
96			*this, &LinuxSamplerPlugin::NotifyDataStructureToBeChanged
97			),
98			"gig::Region"
99			)
100			);
101	schoenebeck	1654	app->signal_region_changed().connect(
102	schoenebeck	1322	sigc::bind(
103			sigc::mem_fun(
104			*this, &LinuxSamplerPlugin::NotifyDataStructureChanged
105			),
106			"gig::Region"
107			)
108			);
109	schoenebeck	1654	app->signal_dimreg_to_be_changed().connect(
110	schoenebeck	3177	// not connected directly anymore ...
111			/*sigc::bind(
112	schoenebeck	1322	sigc::mem_fun(
113			*this, &LinuxSamplerPlugin::NotifyDataStructureToBeChanged
114			),
115			"gig::DimensionRegion"
116	schoenebeck	3177	)*/
117			// ... because we are doing some event debouncing here :
118			sigc::mem_fun(*this, &LinuxSamplerPlugin::__onDimRegionToBeChanged)
119	schoenebeck	1322	);
120	schoenebeck	1654	app->signal_dimreg_changed().connect(
121	schoenebeck	3177	// not connected directly anymore ...
122			/*sigc::bind(
123	schoenebeck	1322	sigc::mem_fun(
124			*this, &LinuxSamplerPlugin::NotifyDataStructureChanged
125			),
126			"gig::DimensionRegion"
127	schoenebeck	3177	)*/
128			// ... because we are doing some event debouncing here :
129			sigc::mem_fun(*this, &LinuxSamplerPlugin::__onDimRegionChanged)
130	schoenebeck	1322	);
131	schoenebeck	1853	app->signal_sample_changed().connect(
132			sigc::bind(
133			sigc::mem_fun(
134			*this, &LinuxSamplerPlugin::NotifyDataStructureChanged
135			),
136			"gig::Sample"
137			)
138			);
139	schoenebeck	1654	app->signal_sample_ref_changed().connect(
140	schoenebeck	1322	sigc::mem_fun(*this, &LinuxSamplerPlugin::NotifySampleReferenceChanged)
141			);
142	schoenebeck	1654
143	schoenebeck	1660	app->signal_keyboard_key_hit().connect(
144			sigc::mem_fun(*this, &LinuxSamplerPlugin::__onVirtualKeyboardKeyHit)
145			);
146			app->signal_keyboard_key_released().connect(
147			sigc::mem_fun(*this, &LinuxSamplerPlugin::__onVirtualKeyboardKeyReleased)
148			);
149	schoenebeck	2689	app->signal_switch_sampler_instrument().connect(
150			sigc::mem_fun(*this, &LinuxSamplerPlugin::__requestSamplerToSwitchInstrument)
151			);
152	schoenebeck	2903	app->signal_script_to_be_changed.connect(
153			sigc::bind(
154			sigc::mem_fun(
155			*this, &LinuxSamplerPlugin::NotifyDataStructureToBeChanged
156			),
157			"gig::Script"
158			)
159			);
160			app->signal_script_changed.connect(
161			sigc::bind(
162			sigc::mem_fun(
163			*this, &LinuxSamplerPlugin::NotifyDataStructureChanged
164			),
165			"gig::Script"
166			)
167			);
168	schoenebeck	1660
169	schoenebeck	1656	// register a timeout job to gigedit's main loop, so we can poll the
170			// the sampler periodically for MIDI events (I HOPE it works on all
171			// archs, because gigedit is actually running in another thread than
172			// the one that is calling this timeout handler register code)
173			const Glib::RefPtr<Glib::TimeoutSource> timeout_source =
174			Glib::TimeoutSource::create(100); // poll every 100ms
175			timeout_source->connect(
176			sigc::mem_fun(this, &LinuxSamplerPlugin::__onPollPeriod)
177			);
178			timeout_source->attach(Glib::MainContext::get_default());
179	schoenebeck	1654
180	schoenebeck	1322	// run gigedit application
181	schoenebeck	1654	return app->run(pGigInstr);
182	schoenebeck	1213	}
183
184	schoenebeck	3177	void LinuxSamplerPlugin::__onDimRegionToBeChanged(gig::DimensionRegion* pDimRgn) {
185			// instead of sending this signal per dimregion ...
186			//NotifyDataStructureToBeChanged(pDimRgn, "gig::DimensionRegion");
187
188			// ... we are rather debouncing those dimregion to be changed events, and
189			// instead only send a region to be changed event, which is much faster when
190			// changing a very large amount of dimregions.
191			if (!pDimRgn) return;
192			gig::Region* pRegion = (gig::Region*) pDimRgn->GetParent();
193			const bool bIdle = priv->debounceRegionChange.empty();
194			bool bRegionLocked = priv->debounceRegionChange.count(pRegion);
195			if (!bRegionLocked) {
196			if (bIdle)
197			printf("DimRgn change event debounce BEGIN (%p)\n", pRegion);
198			priv->debounceRegionChange.insert(pRegion);
199			NotifyDataStructureToBeChanged(pRegion, "gig::Region");
200			}
201			}
202
203			void LinuxSamplerPlugin::__onDimRegionChanged(gig::DimensionRegion* pDimRgn) {
204			// like above, not sending this ...
205			//NotifyDataStructureChanged(pDimRgn, "gig::DimensionRegion");
206
207			// ... but rather aggressively debounce those dim region changed events and
208			// sending a debounced region changed event instead.
209			if (!pDimRgn) return;
210			if (!priv->debounceRegionChangedScheduled) {
211			priv->debounceRegionChangedScheduled = true;
212			Glib::signal_idle().connect_once(
213			sigc::mem_fun(*this, &LinuxSamplerPlugin::__onDimRegionChangedDebounced),
214			Glib::PRIORITY_HIGH_IDLE
215			);
216			}
217			}
218
219			void LinuxSamplerPlugin::__onDimRegionChangedDebounced() {
220			// Note that we are really aggressively unlocking the region here: we are
221			// not even bothering whether the amount "changed" events match with the
222			// previously sent amount of "to be changed" events, because this handler
223			// here is only called when the app's event loop is already idle for a
224			// while, which is not the case if the app is still changing instrument
225			// parameters (except if the app is i.e. currently showing an error dialog
226			// to the user).
227			priv->debounceRegionChangedScheduled = false;
228			for (std::set<gig::Region*>::const_iterator it = priv->debounceRegionChange.begin();
229			it != priv->debounceRegionChange.end(); ++it)
230			{
231			gig::Region* pRegion = *it;
232			NotifyDataStructureChanged(pRegion, "gig::Region");
233			}
234			priv->debounceRegionChange.clear();
235			printf("DimRgn change event debounce END\n");
236			}
237
238	schoenebeck	1656	bool LinuxSamplerPlugin::__onPollPeriod() {
239	schoenebeck	1680	#if HAVE_LINUXSAMPLER_VIRTUAL_MIDI_DEVICE
240	persson	2841	GigEdit* app = static_cast<GigEdit*>(pApp);
241	schoenebeck	1654	if (!NotesChanged()) return true;
242			for (int iKey = 0; iKey < 128; iKey++)
243			if (NoteChanged(iKey))
244	schoenebeck	1664	NoteIsActive(iKey) ?
245			app->on_note_on_event(iKey, NoteOnVelocity(iKey)) :
246			app->on_note_off_event(iKey, NoteOffVelocity(iKey));
247	schoenebeck	1654	return true;
248	schoenebeck	1680	#else
249			return false;
250			#endif
251	schoenebeck	1654	}
252
253	schoenebeck	1322	void LinuxSamplerPlugin::__onSamplesToBeRemoved(std::list<gig::Sample*> lSamples) {
254			// we have to convert the gig::Sample* list to a void* list first
255			std::set<void*> samples;
256			for (
257			std::list<gig::Sample*>::iterator iter = lSamples.begin();
258	persson	2841	iter != lSamples.end(); ++iter
259	schoenebeck	1322	) samples.insert((void)iter);
260			// finally send notification to sampler
261			NotifySamplesToBeRemoved(samples);
262			}
263
264	schoenebeck	1660	void LinuxSamplerPlugin::__onVirtualKeyboardKeyHit(int Key, int Velocity) {
265	schoenebeck	1680	#if HAVE_LINUXSAMPLER_VIRTUAL_MIDI_DEVICE
266	schoenebeck	1660	SendNoteOnToSampler(Key, Velocity);
267	schoenebeck	1680	#endif
268	schoenebeck	1660	}
269
270			void LinuxSamplerPlugin::__onVirtualKeyboardKeyReleased(int Key, int Velocity) {
271	schoenebeck	1680	#if HAVE_LINUXSAMPLER_VIRTUAL_MIDI_DEVICE
272	schoenebeck	1660	SendNoteOffToSampler(Key, Velocity);
273	schoenebeck	1680	#endif
274	schoenebeck	1660	}
275
276	schoenebeck	2689	void LinuxSamplerPlugin::__requestSamplerToSwitchInstrument(gig::Instrument* pInstrument) {
277			if (!pInstrument) return;
278
279			LinuxSampler::EngineChannel* pEngineChannel = GetEngineChannel();
280			if (!pEngineChannel) return;
281
282			LinuxSampler::Engine* pEngine = pEngineChannel->GetEngine();
283			if (!pEngine) return;
284
285			LinuxSampler::InstrumentManager* pInstrumentManager = pEngine->GetInstrumentManager();
286			if (!pInstrumentManager) return;
287
288			gig::File* pFile = (gig::File*) pInstrument->GetParent();
289
290			// resolve instrument's index number in its gig file
291			int index = -1;
292			for (int i = 0; pFile->GetInstrument(i); ++i) {
293			if (pFile->GetInstrument(i) == pInstrument) {
294			index = i;
295			break;
296			}
297			}
298			if (index < 0) return;
299
300			LinuxSampler::InstrumentManager::instrument_id_t id;
301			id.FileName = pFile->GetFileName();
302			id.Index = index;
303			pInstrumentManager->LoadInstrumentInBackground(id, pEngineChannel);
304			}
305
306	schoenebeck	1213	bool LinuxSamplerPlugin::IsTypeSupported(String sTypeName, String sTypeVersion) {
307			return sTypeName == gig::libraryName() &&
308			sTypeVersion == gig::libraryVersion();
309			}
310
311			String LinuxSamplerPlugin::Name() {
312			return "gigedit";
313			}
314
315			String LinuxSamplerPlugin::Version() {
316			return VERSION; // gigedit's version
317			}
318
319			String LinuxSamplerPlugin::Description() {
320			return "Gigedit is an instrument editor for gig files.";
321			}