/[svn]/gigedit/trunk/src/plugin/linuxsamplerplugin.cpp
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Contents of /gigedit/trunk/src/plugin/linuxsamplerplugin.cpp

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Revision 1877 - (show annotations) (download)
Fri Mar 27 12:18:12 2009 UTC (11 years, 2 months ago) by schoenebeck
File size: 6229 byte(s)
* updated LinuxSampler plugin of gigedit to the latest liblinuxsampler
  C++ API changes

1 /*
2 * Copyright (C) 2007, 2008 Andreas Persson
3 *
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 #include <linuxsampler/plugins/InstrumentEditorFactory.h>
23 #include "../gigedit/gigedit.h"
24 #include "../gigedit/global.h"
25
26 #include <iostream>
27 #include <sigc++/bind.h>
28 #include <glibmm/main.h>
29
30 REGISTER_INSTRUMENT_EDITOR(LinuxSamplerPlugin)
31
32 LinuxSamplerPlugin::LinuxSamplerPlugin() {
33 pApp = new GigEdit;
34 }
35
36 LinuxSamplerPlugin::~LinuxSamplerPlugin() {
37 if (pApp) delete (GigEdit*) pApp;
38 }
39
40 int LinuxSamplerPlugin::Main(void* pInstrument, String sTypeName, String sTypeVersion, void* /*pUserData*/) {
41 return Main(pInstrument, sTypeName, sTypeVersion);
42 }
43
44 int LinuxSamplerPlugin::Main(void* pInstrument, String sTypeName, String sTypeVersion) {
45 std::cout << "Entered Gigedit Main() loop :)\n" << std::flush;
46 gig::Instrument* pGigInstr = static_cast<gig::Instrument*>(pInstrument);
47 GigEdit* app = (GigEdit*) pApp;
48
49 // connect notification signals
50 app->signal_file_structure_to_be_changed().connect(
51 sigc::bind(
52 sigc::mem_fun(
53 *this, &LinuxSamplerPlugin::NotifyDataStructureToBeChanged
54 ),
55 "gig::File"
56 )
57 );
58 app->signal_file_structure_changed().connect(
59 sigc::bind(
60 sigc::mem_fun(
61 *this, &LinuxSamplerPlugin::NotifyDataStructureChanged
62 ),
63 "gig::File"
64 )
65 );
66 app->signal_samples_to_be_removed().connect(
67 sigc::mem_fun(*this, &LinuxSamplerPlugin::__onSamplesToBeRemoved)
68 );
69 app->signal_samples_removed().connect(
70 sigc::mem_fun(*this, &LinuxSamplerPlugin::NotifySamplesRemoved)
71 );
72 app->signal_region_to_be_changed().connect(
73 sigc::bind(
74 sigc::mem_fun(
75 *this, &LinuxSamplerPlugin::NotifyDataStructureToBeChanged
76 ),
77 "gig::Region"
78 )
79 );
80 app->signal_region_changed().connect(
81 sigc::bind(
82 sigc::mem_fun(
83 *this, &LinuxSamplerPlugin::NotifyDataStructureChanged
84 ),
85 "gig::Region"
86 )
87 );
88 app->signal_dimreg_to_be_changed().connect(
89 sigc::bind(
90 sigc::mem_fun(
91 *this, &LinuxSamplerPlugin::NotifyDataStructureToBeChanged
92 ),
93 "gig::DimensionRegion"
94 )
95 );
96 app->signal_dimreg_changed().connect(
97 sigc::bind(
98 sigc::mem_fun(
99 *this, &LinuxSamplerPlugin::NotifyDataStructureChanged
100 ),
101 "gig::DimensionRegion"
102 )
103 );
104 app->signal_sample_changed().connect(
105 sigc::bind(
106 sigc::mem_fun(
107 *this, &LinuxSamplerPlugin::NotifyDataStructureChanged
108 ),
109 "gig::Sample"
110 )
111 );
112 app->signal_sample_ref_changed().connect(
113 sigc::mem_fun(*this, &LinuxSamplerPlugin::NotifySampleReferenceChanged)
114 );
115
116 app->signal_keyboard_key_hit().connect(
117 sigc::mem_fun(*this, &LinuxSamplerPlugin::__onVirtualKeyboardKeyHit)
118 );
119 app->signal_keyboard_key_released().connect(
120 sigc::mem_fun(*this, &LinuxSamplerPlugin::__onVirtualKeyboardKeyReleased)
121 );
122
123 // register a timeout job to gigedit's main loop, so we can poll the
124 // the sampler periodically for MIDI events (I HOPE it works on all
125 // archs, because gigedit is actually running in another thread than
126 // the one that is calling this timeout handler register code)
127 const Glib::RefPtr<Glib::TimeoutSource> timeout_source =
128 Glib::TimeoutSource::create(100); // poll every 100ms
129 timeout_source->connect(
130 sigc::mem_fun(this, &LinuxSamplerPlugin::__onPollPeriod)
131 );
132 timeout_source->attach(Glib::MainContext::get_default());
133
134 // run gigedit application
135 return app->run(pGigInstr);
136 }
137
138 bool LinuxSamplerPlugin::__onPollPeriod() {
139 #if HAVE_LINUXSAMPLER_VIRTUAL_MIDI_DEVICE
140 GigEdit* app = (GigEdit*) pApp;
141 if (!NotesChanged()) return true;
142 for (int iKey = 0; iKey < 128; iKey++)
143 if (NoteChanged(iKey))
144 NoteIsActive(iKey) ?
145 app->on_note_on_event(iKey, NoteOnVelocity(iKey)) :
146 app->on_note_off_event(iKey, NoteOffVelocity(iKey));
147 return true;
148 #else
149 return false;
150 #endif
151 }
152
153 void LinuxSamplerPlugin::__onSamplesToBeRemoved(std::list<gig::Sample*> lSamples) {
154 // we have to convert the gig::Sample* list to a void* list first
155 std::set<void*> samples;
156 for (
157 std::list<gig::Sample*>::iterator iter = lSamples.begin();
158 iter != lSamples.end(); iter++
159 ) samples.insert((void*)*iter);
160 // finally send notification to sampler
161 NotifySamplesToBeRemoved(samples);
162 }
163
164 void LinuxSamplerPlugin::__onVirtualKeyboardKeyHit(int Key, int Velocity) {
165 #if HAVE_LINUXSAMPLER_VIRTUAL_MIDI_DEVICE
166 SendNoteOnToSampler(Key, Velocity);
167 #endif
168 }
169
170 void LinuxSamplerPlugin::__onVirtualKeyboardKeyReleased(int Key, int Velocity) {
171 #if HAVE_LINUXSAMPLER_VIRTUAL_MIDI_DEVICE
172 SendNoteOffToSampler(Key, Velocity);
173 #endif
174 }
175
176 bool LinuxSamplerPlugin::IsTypeSupported(String sTypeName, String sTypeVersion) {
177 return sTypeName == gig::libraryName() &&
178 sTypeVersion == gig::libraryVersion();
179 }
180
181 String LinuxSamplerPlugin::Name() {
182 return "gigedit";
183 }
184
185 String LinuxSamplerPlugin::Version() {
186 return VERSION; // gigedit's version
187 }
188
189 String LinuxSamplerPlugin::Description() {
190 return "Gigedit is an instrument editor for gig files.";
191 }

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