drivers/midi/MidiInputPort.h

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *                                                                         *
 *   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., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#ifndef __LS_MIDIINPUTPORT_H__
#define __LS_MIDIINPUTPORT_H__

#include "../../common/global.h"
#include "../../common/LinuxSamplerException.h"
#include "../DeviceParameter.h"
#include "MidiInputDevice.h"
#include "../../engines/common/Engine.h"

namespace LinuxSampler {

    // just symbol prototyping
    class MidiInputDevice;

    class MidiInputPort {
        public:

            /////////////////////////////////////////////////////////////////
            // type definitions

            /**
             * MIDI channels
             */
            enum midi_chan_t {
                midi_chan_all = 0,
                midi_chan_1   = 1,
                midi_chan_2   = 2,
                midi_chan_3   = 3,
                midi_chan_4   = 4,
                midi_chan_5   = 5,
                midi_chan_6   = 6,
                midi_chan_7   = 7,
                midi_chan_8   = 8,
                midi_chan_9   = 9,
                midi_chan_10  = 10,
                midi_chan_11  = 11,
                midi_chan_12  = 12,
                midi_chan_13  = 13,
                midi_chan_14  = 14,
                midi_chan_15  = 15,
                midi_chan_16  = 16
            };

            /** MIDI Port Parameter 'NAME'
             *
             * Used to assign an arbitrary name to the MIDI port.
             */
            class ParameterName : public DeviceRuntimeParameterString {
                public:
                    ParameterName(MidiInputPort* pPort);
                    ParameterName(MidiInputPort* pPort, String val);
                    virtual String Description();
                    virtual bool   Fix();
                    virtual std::vector<String> PossibilitiesAsString();
                    virtual void OnSetValue(String s) throw (LinuxSamplerException);
                protected:
                    MidiInputPort* pPort;
            };


            /////////////////////////////////////////////////////////////////
            // normal methods
            //     (usually not to be overriden by descendant)

            /**
             * Connect given sampler engine with this MIDI input device.
             * The engine can either be connected to one specific MIDI
             * channel or all MIDI channels. If an engine gets connected
             * twice to this MIDI input device, then the engine's old
             * connection will be detached (no matter on which MIDI channel).
             *
             * @param pEngine     - sampler engine
             * @param MidiChannel - MIDI channel to connect to
             * @throws MidiInputException  if MidiChannel argument invalid
             */
            void Connect(Engine* pEngine, midi_chan_t MidiChannel);

            /**
             * Disconnect given sampler engine from this MIDI input device.
             *
             * @param pEngine - sampler engine
             */
            void Disconnect(Engine* pEngine);

            /**
             * Return MIDI device where this MIDI port belongs to.
             */
            MidiInputDevice* GetDevice();

            /**
             * Return port number with which this MIDI port is registered to
             * the MIDI device.
             */
            uint GetPortNumber();

            /**
             * Return all parameter settings of this MIDI port.
             */
            std::map<String,DeviceRuntimeParameter*> PortParameters();


            /////////////////////////////////////////////////////////////////
            // dispatch methods
            //     (should be called by the MidiInputDevice descendant on events)

            /**
             * Should be called by the implementing MIDI input device
             * whenever a note on event arrived, this will cause the note on
             * event to be forwarded to all connected engines on the
             * corresponding MIDI channel.
             *
             * @param Key         - MIDI key number of the triggered key
             * @param Velocity    - MIDI velocity of the triggered key
             * @param MidiChannel - MIDI channel on which event occured on
             */
            void DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel);

            /**
             * Should be called by the implementing MIDI input device
             * whenever a note off event arrived, this will cause the note
             * off event to be forwarded to all connected engines on the
             * corresponding MIDI channel.
             *
             * @param Key         - MIDI key number of the released key
             * @param Velocity    - MIDI velocity of the released key
             * @param MidiChannel - MIDI channel on which event occured on
             */
            void DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel);

            /**
             * Should be called by the implementing MIDI input device
             * whenever a pitchbend event arrived, this will cause the
             * pitchbend event to be forwarded to all connected engines.
             *
             * @param Pitch       - MIDI pitch value
             * @param MidiChannel - MIDI channel on which event occured on
             */
            void DispatchPitchbend(int Pitch, uint MidiChannel);

            /**
             * Should be called by the implementing MIDI input device
             * whenever a control change event arrived, this will cause the
             * control change event to be forwarded to all engines on the
             * corresponding MIDI channel.
             *
             * @param Controller  - MIDI controller number
             * @param Value       - MIDI control change value
             * @param MidiChannel - MIDI channel on which event occured on
             */
            void DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel);

        protected:
            MidiInputDevice* pDevice;
            int portNumber;
            std::map<String,DeviceRuntimeParameter*> Parameters;  ///< All port parameters.
            std::set<Engine*> MidiChannelMap[17]; ///< Contains the list of connected engines for each MIDI channel, where index 0 points to the list of engines which are connected to all MIDI channels. Usually it's not necessary for the descendant to use this map, instead it should just use the Dispatch* methods.

            /**
             * Constructor
             */
            MidiInputPort(MidiInputDevice* pDevice, int portNumber);

            /**
             * Destructor
             */
            virtual ~MidiInputPort();

            friend class MidiInputDevice;
    };

} // namsepace LinuxSampler

#endif // __LS_MIDIINPUTPORT_H__
1	schoenebeck	221	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5			* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6			* *
7			* This program is free software; you can redistribute it and/or modify *
8			* it under the terms of the GNU General Public License as published by *
9			* the Free Software Foundation; either version 2 of the License, or *
10			* (at your option) any later version. *
11			* *
12			* This program is distributed in the hope that it will be useful, *
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15			* GNU General Public License for more details. *
16			* *
17			* You should have received a copy of the GNU General Public License *
18			* along with this program; if not, write to the Free Software *
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20			* MA 02111-1307 USA *
21			***************************************************************************/
22
23			#ifndef __LS_MIDIINPUTPORT_H__
24			#define __LS_MIDIINPUTPORT_H__
25
26			#include "../../common/global.h"
27			#include "../../common/LinuxSamplerException.h"
28			#include "../DeviceParameter.h"
29			#include "MidiInputDevice.h"
30			#include "../../engines/common/Engine.h"
31
32			namespace LinuxSampler {
33
34			// just symbol prototyping
35			class MidiInputDevice;
36
37			class MidiInputPort {
38			public:
39
40			/////////////////////////////////////////////////////////////////
41			// type definitions
42
43			/**
44			* MIDI channels
45			*/
46			enum midi_chan_t {
47			midi_chan_all = 0,
48			midi_chan_1 = 1,
49			midi_chan_2 = 2,
50			midi_chan_3 = 3,
51			midi_chan_4 = 4,
52			midi_chan_5 = 5,
53			midi_chan_6 = 6,
54			midi_chan_7 = 7,
55			midi_chan_8 = 8,
56			midi_chan_9 = 9,
57			midi_chan_10 = 10,
58			midi_chan_11 = 11,
59			midi_chan_12 = 12,
60			midi_chan_13 = 13,
61			midi_chan_14 = 14,
62			midi_chan_15 = 15,
63			midi_chan_16 = 16
64			};
65
66			/** MIDI Port Parameter 'NAME'
67			*
68			* Used to assign an arbitrary name to the MIDI port.
69			*/
70			class ParameterName : public DeviceRuntimeParameterString {
71			public:
72			ParameterName(MidiInputPort* pPort);
73			ParameterName(MidiInputPort* pPort, String val);
74			virtual String Description();
75			virtual bool Fix();
76			virtual std::vector<String> PossibilitiesAsString();
77			virtual void OnSetValue(String s) throw (LinuxSamplerException);
78			protected:
79			MidiInputPort* pPort;
80			};
81
82
83
84			/////////////////////////////////////////////////////////////////
85			// normal methods
86			// (usually not to be overriden by descendant)
87
88			/**
89			* Connect given sampler engine with this MIDI input device.
90			* The engine can either be connected to one specific MIDI
91			* channel or all MIDI channels. If an engine gets connected
92			* twice to this MIDI input device, then the engine's old
93			* connection will be detached (no matter on which MIDI channel).
94			*
95			* @param pEngine - sampler engine
96			* @param MidiChannel - MIDI channel to connect to
97			* @throws MidiInputException if MidiChannel argument invalid
98			*/
99			void Connect(Engine* pEngine, midi_chan_t MidiChannel);
100
101			/**
102			* Disconnect given sampler engine from this MIDI input device.
103			*
104			* @param pEngine - sampler engine
105			*/
106			void Disconnect(Engine* pEngine);
107
108			/**
109			* Return MIDI device where this MIDI port belongs to.
110			*/
111			MidiInputDevice* GetDevice();
112
113			/**
114			* Return port number with which this MIDI port is registered to
115			* the MIDI device.
116			*/
117			uint GetPortNumber();
118
119			/**
120			* Return all parameter settings of this MIDI port.
121			*/
122			std::map<String,DeviceRuntimeParameter*> PortParameters();
123
124
125
126
127
128			/////////////////////////////////////////////////////////////////
129			// dispatch methods
130			// (should be called by the MidiInputDevice descendant on events)
131
132			/**
133			* Should be called by the implementing MIDI input device
134			* whenever a note on event arrived, this will cause the note on
135			* event to be forwarded to all connected engines on the
136			* corresponding MIDI channel.
137			*
138			* @param Key - MIDI key number of the triggered key
139			* @param Velocity - MIDI velocity of the triggered key
140			* @param MidiChannel - MIDI channel on which event occured on
141			*/
142			void DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel);
143
144			/**
145			* Should be called by the implementing MIDI input device
146			* whenever a note off event arrived, this will cause the note
147			* off event to be forwarded to all connected engines on the
148			* corresponding MIDI channel.
149			*
150			* @param Key - MIDI key number of the released key
151			* @param Velocity - MIDI velocity of the released key
152			* @param MidiChannel - MIDI channel on which event occured on
153			*/
154			void DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel);
155
156			/**
157			* Should be called by the implementing MIDI input device
158			* whenever a pitchbend event arrived, this will cause the
159			* pitchbend event to be forwarded to all connected engines.
160			*
161			* @param Pitch - MIDI pitch value
162			* @param MidiChannel - MIDI channel on which event occured on
163			*/
164			void DispatchPitchbend(int Pitch, uint MidiChannel);
165
166			/**
167			* Should be called by the implementing MIDI input device
168			* whenever a control change event arrived, this will cause the
169			* control change event to be forwarded to all engines on the
170			* corresponding MIDI channel.
171			*
172			* @param Controller - MIDI controller number
173			* @param Value - MIDI control change value
174			* @param MidiChannel - MIDI channel on which event occured on
175			*/
176			void DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel);
177
178			protected:
179			MidiInputDevice* pDevice;
180			int portNumber;
181			std::map<String,DeviceRuntimeParameter*> Parameters; ///< All port parameters.
182			std::set<Engine> MidiChannelMap[17]; ///< Contains the list of connected engines for each MIDI channel, where index 0 points to the list of engines which are connected to all MIDI channels. Usually it's not necessary for the descendant to use this map, instead it should just use the Dispatch methods.
183
184			/**
185			* Constructor
186			*/
187			MidiInputPort(MidiInputDevice* pDevice, int portNumber);
188
189			/**
190			* Destructor
191			*/
192			virtual ~MidiInputPort();
193
194			friend class MidiInputDevice;
195			};
196
197			} // namsepace LinuxSampler
198
199			#endif // __LS_MIDIINPUTPORT_H__