hostplugins/lv2/PluginLv2.h

/***************************************************************************
 *                                                                         *
 *   Copyright (C) 2008 - 2012 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

#ifdef HAVE_LV2_PACKAGE
#include <lv2/lv2plug.in/ns/lv2core/lv2.h>
#include <lv2/lv2plug.in/ns/ext/event/event.h>
#include <lv2/lv2plug.in/ns/ext/state/state.h>
#include <lv2/lv2plug.in/ns/ext/uri-map/uri-map.h>
#else
#include <lv2.h>
#include "lv2_event.h"
#include "lv2_state.h"
#include "lv2_uri_map.h"
#endif
#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	persson	1777	/***************************************************************************
2			* *
3	persson	2343	* Copyright (C) 2008 - 2012 Andreas Persson *
4	persson	1777	* *
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	persson	2343	#ifdef HAVE_LV2_PACKAGE
25			#include <lv2/lv2plug.in/ns/lv2core/lv2.h>
26			#include <lv2/lv2plug.in/ns/ext/event/event.h>
27			#include <lv2/lv2plug.in/ns/ext/state/state.h>
28			#include <lv2/lv2plug.in/ns/ext/uri-map/uri-map.h>
29			#else
30	persson	1777	#include <lv2.h>
31			#include "lv2_event.h"
32	capela	2291	#include "lv2_state.h"
33	capela	2174	#include "lv2_uri_map.h"
34	persson	2343	#endif
35	persson	1777	#include "../../drivers/Plugin.h"
36
37			namespace {
38
39			class PluginLv2 : public LinuxSampler::Plugin {
40			public:
41			PluginLv2(const LV2_Descriptor* Descriptor,
42			double SampleRate, const char* BundlePath,
43			const LV2_Feature* const* Features);
44			void ConnectPort(uint32_t Port, void* DataLocation);
45			void Activate();
46			void Run(uint32_t SampleCount);
47			void Deactivate();
48	capela	2340	LV2_State_Status Save(LV2_State_Store_Function store, void* data,
49			uint32_t flags, const LV2_Feature* const* features);
50			LV2_State_Status Restore(LV2_State_Retrieve_Function retrieve, void* data,
51			uint32_t flags, const LV2_Feature* const* features);
52	persson	1777
53	schoenebeck	2304	protected:
54	capela	2174	virtual String PathToState(const String& string);
55			virtual String PathFromState(const String& string);
56
57	persson	1777	private:
58	capela	2174	uint32_t uri_to_id(const char* map, const char* uri) {
59	schoenebeck	2304	return UriMap->uri_to_id(UriMap->callback_data, map, uri);
60	capela	2174	}
61
62	schoenebeck	2304	void SetStateFeatures(const LV2_Feature* const* Features);
63
64	persson	1777	float* Out[2];
65			LV2_Event_Buffer* MidiBuf;
66	capela	2174	LV2_URI_Map_Feature* UriMap;
67	capela	2291	LV2_State_Map_Path* MapPath;
68			LV2_State_Make_Path* MakePath;
69	capela	2174
70			String DefaultState;
71	persson	1777	};
72
73			class PluginInfo {
74			public:
75			static const LV2_Descriptor* Lv2Descriptor() {
76			return &Instance.Lv2;
77			}
78	capela	2291	static const LV2_State_Interface* Lv2StateInterface() {
79			return &Instance.StateInterface;
80	persson	1777	}
81			private:
82			LV2_Descriptor Lv2;
83	capela	2291	LV2_State_Interface StateInterface;
84	persson	1777
85			PluginInfo();
86			static PluginInfo Instance;
87			};
88
89			extern "C" {
90			static LV2_Handle instantiate(const LV2_Descriptor* descriptor,
91			double sample_rate, const char* bundle_path,
92			const LV2_Feature* const* features);
93			static void connect_port(LV2_Handle instance, uint32_t port,
94			void* data_location);
95			static void activate(LV2_Handle instance);
96			static void run(LV2_Handle instance, uint32_t sample_count);
97			static void deactivate(LV2_Handle instance);
98			static void cleanup(LV2_Handle instance);
99			static const void* extension_data(const char* uri);
100
101	capela	2340	static LV2_State_Status save(LV2_Handle handle,
102			LV2_State_Store_Function store,
103			void* data);
104	capela	2174
105	capela	2340	static LV2_State_Status restore(LV2_Handle handle,
106			LV2_State_Retrieve_Function retrieve,
107			void* data);
108	persson	1777	}
109			}
110
111			#endif