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 Street, Fifth Floor, Boston, * |
18 |
* MA 02110-1301 USA. * |
19 |
***************************************************************************/ |
20 |
|
21 |
#include "MidiInputDeviceJack.h" |
22 |
#include "../../common/global_private.h" |
23 |
#include "../audio/AudioOutputDeviceJack.h" |
24 |
#include <errno.h> |
25 |
|
26 |
#ifndef HAVE_JACK_MIDI_GET_EVENT_COUNT |
27 |
#define jack_midi_get_event_count(port_buf, nframes) jack_midi_port_get_info(port_buf, nframes)->event_count |
28 |
#endif |
29 |
|
30 |
namespace LinuxSampler { |
31 |
|
32 |
/// number of currently existing JACK midi input devices in LinuxSampler |
33 |
static int existingJackDevices = 0; |
34 |
|
35 |
// *************** MidiInputPortJack::ParameterName *************** |
36 |
// * |
37 |
|
38 |
MidiInputDeviceJack::MidiInputPortJack::ParameterName::ParameterName(MidiInputPortJack* pPort) throw (Exception) : MidiInputPort::ParameterName(pPort, "midi_in_" + ToString(pPort->GetPortNumber())) { |
39 |
this->pPort = pPort; |
40 |
} |
41 |
|
42 |
void MidiInputDeviceJack::MidiInputPortJack::ParameterName::OnSetValue(String s) throw (Exception) { |
43 |
if (jack_port_set_name(pPort->hJackPort, s.c_str())) throw Exception("Failed to rename JACK port"); |
44 |
} |
45 |
|
46 |
|
47 |
// *************** MidiInputPortJack::ParameterJackBindings *************** |
48 |
// * |
49 |
|
50 |
MidiInputDeviceJack::MidiInputPortJack::ParameterJackBindings::ParameterJackBindings(MidiInputPortJack* pPort) : DeviceRuntimeParameterStrings(std::vector<String>()) { |
51 |
this->pPort = pPort; |
52 |
} |
53 |
|
54 |
String MidiInputDeviceJack::MidiInputPortJack::ParameterJackBindings::Description() { |
55 |
return "Bindings to other JACK clients"; |
56 |
} |
57 |
|
58 |
bool MidiInputDeviceJack::MidiInputPortJack::ParameterJackBindings::Fix() { |
59 |
return false; |
60 |
} |
61 |
|
62 |
std::vector<String> MidiInputDeviceJack::MidiInputPortJack::ParameterJackBindings::PossibilitiesAsString() { |
63 |
const char** pPortNames = jack_get_ports(pPort->pDevice->hJackClient, NULL, JACK_DEFAULT_MIDI_TYPE, JackPortIsOutput); |
64 |
if (!pPortNames) return std::vector<String>(); |
65 |
std::vector<String> result; |
66 |
for (int i = 0; pPortNames[i]; i++) result.push_back(pPortNames[i]); |
67 |
free(pPortNames); |
68 |
return result; |
69 |
} |
70 |
|
71 |
void MidiInputDeviceJack::MidiInputPortJack::ParameterJackBindings::OnSetValue(std::vector<String> vS) { |
72 |
String dst_name = ((DeviceCreationParameterString*)pPort->pDevice->Parameters["NAME"])->ValueAsString() + ":" + |
73 |
((DeviceRuntimeParameterString*)pPort->Parameters["NAME"])->ValueAsString(); |
74 |
// disconnect all current bindings first |
75 |
for (int i = 0; i < Bindings.size(); i++) { |
76 |
String src_name = Bindings[i]; |
77 |
int res = jack_disconnect(pPort->pDevice->hJackClient, src_name.c_str(), dst_name.c_str()); |
78 |
} |
79 |
// connect new bindings |
80 |
for (int i = 0; i < vS.size(); i++) { |
81 |
String src_name = vS[i]; |
82 |
int res = jack_connect(pPort->pDevice->hJackClient, src_name.c_str(), dst_name.c_str()); |
83 |
if (res == EEXIST) throw MidiInputException("Jack: Connection to port '" + dst_name + "' already established"); |
84 |
else if (res) throw MidiInputException("Jack: Cannot connect port '" + src_name + "' to port '" + dst_name + "'"); |
85 |
} |
86 |
// remember bindings |
87 |
Bindings = vS; |
88 |
} |
89 |
|
90 |
String MidiInputDeviceJack::MidiInputPortJack::ParameterJackBindings::Name() { |
91 |
return "JACK_BINDINGS"; |
92 |
} |
93 |
|
94 |
|
95 |
|
96 |
// *************** MidiInputPortJack *************** |
97 |
// * |
98 |
|
99 |
MidiInputDeviceJack::MidiInputPortJack::MidiInputPortJack(MidiInputDeviceJack* pDevice) throw (MidiInputException) : MidiInputPort(pDevice, pDevice->Ports.size()) { |
100 |
this->pDevice = pDevice; |
101 |
|
102 |
String port_id = "midi_in_" + ToString(portNumber); |
103 |
hJackPort = jack_port_register(pDevice->hJackClient, port_id.c_str(), JACK_DEFAULT_MIDI_TYPE, JackPortIsInput, 0); |
104 |
if (!hJackPort) throw MidiInputException("Jack: Cannot register Jack MIDI input port."); |
105 |
|
106 |
delete Parameters["NAME"]; |
107 |
Parameters["NAME"] = new ParameterName(this); |
108 |
Parameters["JACK_BINDINGS"] = new ParameterJackBindings(this); |
109 |
} |
110 |
|
111 |
MidiInputDeviceJack::MidiInputPortJack::~MidiInputPortJack() { |
112 |
jack_port_unregister(pDevice->hJackClient, hJackPort); |
113 |
} |
114 |
|
115 |
|
116 |
// *************** MidiInputDeviceJack::ParameterName *************** |
117 |
// * |
118 |
|
119 |
MidiInputDeviceJack::ParameterName::ParameterName() : DeviceCreationParameterString() { |
120 |
InitWithDefault(); // use default name |
121 |
} |
122 |
|
123 |
MidiInputDeviceJack::ParameterName::ParameterName(String s) : DeviceCreationParameterString(s) { |
124 |
} |
125 |
|
126 |
String MidiInputDeviceJack::ParameterName::Description() { |
127 |
return "Arbitrary JACK client name"; |
128 |
} |
129 |
|
130 |
bool MidiInputDeviceJack::ParameterName::Fix() { |
131 |
return true; |
132 |
} |
133 |
|
134 |
bool MidiInputDeviceJack::ParameterName::Mandatory() { |
135 |
return false; |
136 |
} |
137 |
|
138 |
std::map<String,DeviceCreationParameter*> MidiInputDeviceJack::ParameterName::DependsAsParameters() { |
139 |
return std::map<String,DeviceCreationParameter*>(); // no dependencies |
140 |
} |
141 |
|
142 |
std::vector<String> MidiInputDeviceJack::ParameterName::PossibilitiesAsString(std::map<String,String> Parameters) { |
143 |
return std::vector<String>(); |
144 |
} |
145 |
|
146 |
optional<String> MidiInputDeviceJack::ParameterName::DefaultAsString(std::map<String,String> Parameters) { |
147 |
return (existingJackDevices) ? "LinuxSampler" + ToString(existingJackDevices) : "LinuxSampler"; |
148 |
} |
149 |
|
150 |
void MidiInputDeviceJack::ParameterName::OnSetValue(String s) throw (Exception) { |
151 |
// not possible, as parameter is fix |
152 |
} |
153 |
|
154 |
String MidiInputDeviceJack::ParameterName::Name() { |
155 |
return "NAME"; |
156 |
} |
157 |
|
158 |
|
159 |
|
160 |
// *************** MidiInputDeviceJack *************** |
161 |
// * |
162 |
|
163 |
MidiInputDeviceJack::MidiInputDeviceJack(std::map<String,DeviceCreationParameter*> Parameters, void* pSampler) : MidiInputDevice(Parameters, pSampler) { |
164 |
pJackClient = JackClient::CreateMidi(((DeviceCreationParameterString*)Parameters["NAME"])->ValueAsString()); |
165 |
hJackClient = pJackClient->hJackClient; |
166 |
existingJackDevices++; |
167 |
|
168 |
AcquirePorts(((DeviceCreationParameterInt*)Parameters["PORTS"])->ValueAsInt()); |
169 |
if (((DeviceCreationParameterBool*)Parameters["ACTIVE"])->ValueAsBool()) { |
170 |
Listen(); |
171 |
} |
172 |
} |
173 |
|
174 |
MidiInputDeviceJack::~MidiInputDeviceJack() { |
175 |
StopListen(); |
176 |
// free the midi ports (we can't let the base class do this, |
177 |
// as the MidiInputPortJack destructors need access to |
178 |
// hJackClient) |
179 |
for (std::map<int,MidiInputPort*>::iterator iter = Ports.begin(); iter != Ports.end() ; iter++) { |
180 |
delete static_cast<MidiInputPortJack*>(iter->second); |
181 |
} |
182 |
Ports.clear(); |
183 |
|
184 |
JackClient::ReleaseMidi(((DeviceCreationParameterString*)Parameters["NAME"])->ValueAsString()); |
185 |
existingJackDevices--; |
186 |
} |
187 |
|
188 |
MidiInputDeviceJack::MidiInputPortJack* MidiInputDeviceJack::CreateMidiPort() { |
189 |
return new MidiInputPortJack(this); |
190 |
} |
191 |
|
192 |
String MidiInputDeviceJack::Name() { |
193 |
return "JACK"; |
194 |
} |
195 |
|
196 |
String MidiInputDeviceJack::Driver() { |
197 |
return Name(); |
198 |
} |
199 |
|
200 |
void MidiInputDeviceJack::Listen() { |
201 |
pJackClient->SetMidiInputDevice(this); |
202 |
} |
203 |
|
204 |
void MidiInputDeviceJack::StopListen() { |
205 |
pJackClient->SetMidiInputDevice(0); |
206 |
} |
207 |
|
208 |
String MidiInputDeviceJack::Description() { |
209 |
return "JACK Audio Connection Kit"; |
210 |
} |
211 |
|
212 |
String MidiInputDeviceJack::Version() { |
213 |
String s = "$Revision: 1.3 $"; |
214 |
return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
215 |
} |
216 |
|
217 |
void MidiInputDeviceJack::Process(int nsamples) { |
218 |
int nbPorts = Ports.size(); |
219 |
for (int i = 0 ; i < nbPorts ; i++) { |
220 |
MidiInputPortJack* port = static_cast<MidiInputPortJack*>(Ports[i]); |
221 |
void* port_buffer = jack_port_get_buffer(port->hJackPort, nsamples); |
222 |
|
223 |
#if JACK_MIDI_FUNCS_NEED_NFRAMES |
224 |
int event_count = jack_midi_get_event_count(port_buffer, nsamples); // old jack version |
225 |
#else |
226 |
int event_count = jack_midi_get_event_count(port_buffer); |
227 |
#endif |
228 |
for (int i = 0 ; i < event_count ; i++) |
229 |
{ |
230 |
jack_midi_event_t ev; |
231 |
#if JACK_MIDI_FUNCS_NEED_NFRAMES |
232 |
jack_midi_event_get(&ev, port_buffer, i, nsamples); // old jack version |
233 |
#else |
234 |
jack_midi_event_get(&ev, port_buffer, i); |
235 |
#endif |
236 |
port->DispatchRaw(ev.buffer, ev.time); |
237 |
} |
238 |
} |
239 |
} |
240 |
} |