hostplugins/lv2/PluginLv2.h

/***************************************************************************
 *                                                                         *
 *   Copyright (C) 2008 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 of the License, 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 this program; if not, write to the Free Software           *
 *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,                *
 *   MA  02110-1301  USA                                                   *
 ***************************************************************************/

#ifndef LS_PLUGINLV2_H
#define LS_PLUGINLV2_H

#include <lv2.h>
#include "lv2_event.h"
#include "lv2_state.h"
#include "lv2_uri_map.h"
#include "../../drivers/Plugin.h"

namespace {

    class PluginLv2 : public LinuxSampler::Plugin {
    public:
        PluginLv2(const LV2_Descriptor* Descriptor,
                  double SampleRate, const char* BundlePath,
                  const LV2_Feature* const* Features);
        void ConnectPort(uint32_t Port, void* DataLocation);
        void Activate();
        void Run(uint32_t SampleCount);
        void Deactivate();
        LV2_State_Status Save(LV2_State_Store_Function store, void* data,
                              uint32_t flags, const LV2_Feature* const* features);
        LV2_State_Status Restore(LV2_State_Retrieve_Function retrieve, void* data,
                                 uint32_t flags, const LV2_Feature* const* features);

    protected:
        virtual String PathToState(const String& string);
        virtual String PathFromState(const String& string);

    private:
        uint32_t uri_to_id(const char* map, const char* uri) {
            return UriMap->uri_to_id(UriMap->callback_data, map, uri);
        }

        void SetStateFeatures(const LV2_Feature* const* Features);

        float* Out[2];
        LV2_Event_Buffer* MidiBuf;
        LV2_URI_Map_Feature* UriMap;
        LV2_State_Map_Path* MapPath;
        LV2_State_Make_Path* MakePath;

        String DefaultState;
    };

    class PluginInfo {
    public:
        static const LV2_Descriptor* Lv2Descriptor() {
            return &Instance.Lv2;
        }
        static const LV2_State_Interface* Lv2StateInterface() {
            return &Instance.StateInterface;
        }
    private:
        LV2_Descriptor Lv2;
        LV2_State_Interface StateInterface;

        PluginInfo();
        static PluginInfo Instance;
    };

    extern "C" {
        static LV2_Handle instantiate(const LV2_Descriptor* descriptor,
                                      double sample_rate, const char* bundle_path,
                                      const LV2_Feature* const* features);
        static void connect_port(LV2_Handle instance, uint32_t port,
                                 void* data_location);
        static void activate(LV2_Handle instance);
        static void run(LV2_Handle instance, uint32_t sample_count);
        static void deactivate(LV2_Handle instance);
        static void cleanup(LV2_Handle instance);
        static const void* extension_data(const char* uri);

        static LV2_State_Status save(LV2_Handle               handle,
                                     LV2_State_Store_Function store,
                                     void*                    data);

        static LV2_State_Status restore(LV2_Handle                  handle,
                                        LV2_State_Retrieve_Function retrieve,
                                        void*                       data);
    }
}

#endif
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_state.h"
27	#include "lv2_uri_map.h"
28	#include "../../drivers/Plugin.h"
29
30	namespace {
31
32	class PluginLv2 : public LinuxSampler::Plugin {
33	public:
34	PluginLv2(const LV2_Descriptor* Descriptor,
35	double SampleRate, const char* BundlePath,
36	const LV2_Feature* const* Features);
37	void ConnectPort(uint32_t Port, void* DataLocation);
38	void Activate();
39	void Run(uint32_t SampleCount);
40	void Deactivate();
41	LV2_State_Status Save(LV2_State_Store_Function store, void* data,
42	uint32_t flags, const LV2_Feature* const* features);
43	LV2_State_Status Restore(LV2_State_Retrieve_Function retrieve, void* data,
44	uint32_t flags, const LV2_Feature* const* features);
45
46	protected:
47	virtual String PathToState(const String& string);
48	virtual String PathFromState(const String& string);
49
50	private:
51	uint32_t uri_to_id(const char* map, const char* uri) {
52	return UriMap->uri_to_id(UriMap->callback_data, map, uri);
53	}
54
55	void SetStateFeatures(const LV2_Feature* const* Features);
56
57	float* Out[2];
58	LV2_Event_Buffer* MidiBuf;
59	LV2_URI_Map_Feature* UriMap;
60	LV2_State_Map_Path* MapPath;
61	LV2_State_Make_Path* MakePath;
62
63	String DefaultState;
64	};
65
66	class PluginInfo {
67	public:
68	static const LV2_Descriptor* Lv2Descriptor() {
69	return &Instance.Lv2;
70	}
71	static const LV2_State_Interface* Lv2StateInterface() {
72	return &Instance.StateInterface;
73	}
74	private:
75	LV2_Descriptor Lv2;
76	LV2_State_Interface StateInterface;
77
78	PluginInfo();
79	static PluginInfo Instance;
80	};
81
82	extern "C" {
83	static LV2_Handle instantiate(const LV2_Descriptor* descriptor,
84	double sample_rate, const char* bundle_path,
85	const LV2_Feature* const* features);
86	static void connect_port(LV2_Handle instance, uint32_t port,
87	void* data_location);
88	static void activate(LV2_Handle instance);
89	static void run(LV2_Handle instance, uint32_t sample_count);
90	static void deactivate(LV2_Handle instance);
91	static void cleanup(LV2_Handle instance);
92	static const void* extension_data(const char* uri);
93
94	static LV2_State_Status save(LV2_Handle handle,
95	LV2_State_Store_Function store,
96	void* data);
97
98	static LV2_State_Status restore(LV2_Handle handle,
99	LV2_State_Retrieve_Function retrieve,
100	void* data);
101	}
102	}
103
104	#endif