summaryrefslogtreecommitdiff
path: root/session_utils/common.cc
blob: 3d197181cd037d756200c26682962692055fff80 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
/*
 * Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
 *
 * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include <iostream>
#include <cstdlib>
#include <glibmm.h>

#include "pbd/debug.h"
#include "pbd/event_loop.h"
#include "pbd/error.h"
#include "pbd/failed_constructor.h"
#include "pbd/pthread_utils.h"

#include "ardour/audioengine.h"
#include "ardour/filename_extensions.h"
#include "ardour/types.h"

#include "common.h"

using namespace std;
using namespace ARDOUR;
using namespace PBD;

static const char* localedir = LOCALEDIR;
TestReceiver test_receiver;

void
TestReceiver::receive (Transmitter::Channel chn, const char * str)
{
	const char *prefix = "";

	switch (chn) {
	case Transmitter::Error:
		prefix = ": [ERROR]: ";
		break;
	case Transmitter::Info:
		/* ignore */
		return;
	case Transmitter::Warning:
		prefix = ": [WARNING]: ";
		break;
	case Transmitter::Fatal:
		prefix = ": [FATAL]: ";
		break;
	case Transmitter::Throw:
		/* this isn't supposed to happen */
		abort ();
	}

	/* note: iostreams are already thread-safe: no external
	   lock required.
	*/

	std::cout << prefix << str << std::endl;

	if (chn == Transmitter::Fatal) {
		::exit (9);
	}
}

/* temporarily required due to some code design confusion (Feb 2014) */

#include "ardour/vst_types.h"

int vstfx_init (void*) { return 0; }
void vstfx_exit () {}
void vstfx_destroy_editor (VSTState*) {}

class MyEventLoop : public sigc::trackable, public EventLoop
{
	public:
		MyEventLoop (std::string const& name) : EventLoop (name) {
			run_loop_thread = Glib::Threads::Thread::self();
		}

		void call_slot (InvalidationRecord*, const boost::function<void()>& f) {
			if (Glib::Threads::Thread::self() == run_loop_thread) {
				f ();
			}
		}

		Glib::Threads::Mutex& slot_invalidation_mutex() { return request_buffer_map_lock; }

	private:
		Glib::Threads::Thread* run_loop_thread;
		Glib::Threads::Mutex   request_buffer_map_lock;
};

static MyEventLoop *event_loop;

void
SessionUtils::init (bool print_log)
{
	if (!ARDOUR::init (false, true, localedir)) {
		cerr << "Ardour failed to initialize\n" << endl;
		::exit (EXIT_FAILURE);
	}

	event_loop = new MyEventLoop ("util");
	EventLoop::set_event_loop_for_thread (event_loop);
	SessionEvent::create_per_thread_pool ("util", 512);

	if (print_log) {
		test_receiver.listen_to (error);
		test_receiver.listen_to (info);
		test_receiver.listen_to (fatal);
		test_receiver.listen_to (warning);
	}
}

// TODO return NULL, rather than exit() ?!
static Session * _load_session (string dir, string state)
{
	AudioEngine* engine = AudioEngine::create ();

	if (!engine->set_backend ("None (Dummy)", "Unit-Test", "")) {
		std::cerr << "Cannot create Audio/MIDI engine\n";
		::exit (EXIT_FAILURE);
	}

	engine->set_input_channels (256);
	engine->set_output_channels (256);

	float sr;
	SampleFormat sf;
	std::string v;

	std::string s = Glib::build_filename (dir, state + statefile_suffix);

	if (!Glib::file_test (s, Glib::FILE_TEST_EXISTS | Glib::FILE_TEST_IS_REGULAR)) {
		std::cerr << "Cannot read session '"<< s << "'\n";
		return 0;
	}

	if (Session::get_info_from_path (s, sr, sf, v) == 0) {
		if (engine->set_sample_rate (sr)) {
			std::cerr << "Cannot set session's samplerate.\n";
			return 0;
		}
	} else {
		std::cerr << "Cannot get samplerate from session.\n";
		return 0;
	}

	if (engine->start () != 0) {
		std::cerr << "Cannot start Audio/MIDI engine\n";
		return 0;
	}

	Session* session = new Session (*engine, dir, state);
	engine->set_session (session);
	return session;
}

Session *
SessionUtils::load_session (string dir, string state, bool exit_at_failure)
{
	Session* s = 0;
	try {
		s = _load_session (dir, state);
	} catch (failed_constructor& e) {
		cerr << "failed_constructor: " << e.what() << "\n";
		::exit (EXIT_FAILURE);
	} catch (AudioEngine::PortRegistrationFailure& e) {
		cerr << "PortRegistrationFailure: " << e.what() << "\n";
		::exit (EXIT_FAILURE);
	} catch (exception& e) {
		cerr << "exception: " << e.what() << "\n";
		::exit (EXIT_FAILURE);
	} catch (...) {
		cerr << "unknown exception.\n";
		::exit (EXIT_FAILURE);
	}
	if (!s && exit_at_failure) {
		::exit (EXIT_FAILURE);
	}
	return s;
}

Session *
SessionUtils::create_session (string dir, string state, float sample_rate)
{
	AudioEngine* engine = AudioEngine::create ();

	if (!engine->set_backend ("None (Dummy)", "Unit-Test", "")) {
		std::cerr << "Cannot create Audio/MIDI engine\n";
		::exit (EXIT_FAILURE);
	}

	engine->set_input_channels (256);
	engine->set_output_channels (256);

	if (engine->set_sample_rate (sample_rate)) {
		std::cerr << "Cannot set session's samplerate.\n";
		return 0;
	}

	if (engine->start () != 0) {
		std::cerr << "Cannot start Audio/MIDI engine\n";
		return 0;
	}

	std::string s = Glib::build_filename (dir, state + statefile_suffix);

	if (Glib::file_test (dir, Glib::FILE_TEST_EXISTS)) {
		std::cerr << "Session folder already exists '"<< dir << "'\n";
	}
	if (Glib::file_test (s, Glib::FILE_TEST_EXISTS)) {
		std::cerr << "Session file exists '"<< s << "'\n";
		return 0;
	}

	Session* session = new Session (*engine, dir, state);
	engine->set_session (session);
	return session;
}

void
SessionUtils::unload_session (Session *s)
{
	delete s;
	AudioEngine::instance()->stop ();
	AudioEngine::destroy ();
}

void
SessionUtils::cleanup ()
{
	ARDOUR::cleanup ();
	delete event_loop;
	pthread_cancel_all ();
}