/[svn]/linuxsampler/trunk/src/hostplugins/lv2/PluginLv2.h
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Contents of /linuxsampler/trunk/src/hostplugins/lv2/PluginLv2.h

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Revision 2174 - (show annotations) (download) (as text)
Tue Apr 12 15:19:56 2011 UTC (8 years, 10 months ago) by capela
File MIME type: text/x-c++hdr
File size: 4141 byte(s)
* plugin changes:
    - LV2 Persist + Files support (patch by David Robillard)

1 /***************************************************************************
2 * *
3 * Copyright (C) 2008 Andreas Persson *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the Free Software *
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *
18 * MA 02110-1301 USA *
19 ***************************************************************************/
20
21 #ifndef LS_PLUGINLV2_H
22 #define LS_PLUGINLV2_H
23
24 #include <lv2.h>
25 #include "lv2_event.h"
26 #include "lv2_persist.h"
27 #include "lv2_uri_map.h"
28 #include "lv2_files.h"
29 #include "../../drivers/Plugin.h"
30
31 namespace {
32
33 class PluginLv2 : public LinuxSampler::Plugin {
34 public:
35 PluginLv2(const LV2_Descriptor* Descriptor,
36 double SampleRate, const char* BundlePath,
37 const LV2_Feature* const* Features);
38 void ConnectPort(uint32_t Port, void* DataLocation);
39 void Activate();
40 void Run(uint32_t SampleCount);
41 void Deactivate();
42 void Save(LV2_Persist_Store_Function store, void* data);
43 void Restore(LV2_Persist_Retrieve_Function retrieve, void* data);
44
45 protected:
46 virtual String PathToState(const String& string);
47 virtual String PathFromState(const String& string);
48
49 private:
50 uint32_t uri_to_id(const char* map, const char* uri) {
51 return UriMap->uri_to_id(UriMap->callback_data, map, uri);
52 }
53
54 float* Out[2];
55 LV2_Event_Buffer* MidiBuf;
56 LV2_URI_Map_Feature* UriMap;
57 LV2_Files_Path_Support* PathSupport;
58 LV2_Files_New_File_Support* NewFileSupport;
59
60 String DefaultState;
61 };
62
63 class PluginInfo {
64 public:
65 static const LV2_Descriptor* Lv2Descriptor() {
66 return &Instance.Lv2;
67 }
68 static const LV2_Persist* Lv2PersistDescriptor() {
69 return &Instance.Persist;
70 }
71 private:
72 LV2_Descriptor Lv2;
73 LV2_Persist Persist;
74
75 PluginInfo();
76 static PluginInfo Instance;
77 };
78
79 extern "C" {
80 static LV2_Handle instantiate(const LV2_Descriptor* descriptor,
81 double sample_rate, const char* bundle_path,
82 const LV2_Feature* const* features);
83 static void connect_port(LV2_Handle instance, uint32_t port,
84 void* data_location);
85 static void activate(LV2_Handle instance);
86 static void run(LV2_Handle instance, uint32_t sample_count);
87 static void deactivate(LV2_Handle instance);
88 static void cleanup(LV2_Handle instance);
89 static const void* extension_data(const char* uri);
90
91 static void save(LV2_Handle handle,
92 LV2_Persist_Store_Function store,
93 void* data);
94
95 static void restore(LV2_Handle handle,
96 LV2_Persist_Retrieve_Function retrieve,
97 void* data);
98 }
99 }
100
101 #endif

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