2 Copyright (C) 2000-2003 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "libardour-config.h"
26 #include <cstdio> /* for sprintf */
33 #include <sys/types.h>
40 #include <glibmm/miscutils.h>
41 #include <glibmm/fileutils.h>
48 #include "pbd/error.h"
49 #include "pbd/stacktrace.h"
50 #include "pbd/xml++.h"
51 #include "pbd/basename.h"
52 #include "pbd/strsplit.h"
54 #include "ardour/utils.h"
55 #include "ardour/rc_configuration.h"
59 using namespace ARDOUR;
64 legalize_for_path (const string& str)
66 string::size_type pos;
67 string illegal_chars = "/\\"; /* DOS, POSIX. Yes, we're going to ignore HFS */
73 while ((pos = legal.find_first_of (illegal_chars, pos)) != string::npos) {
74 legal.replace (pos, 1, "_");
78 return string (legal);
82 bump_name_once (const std::string& name, char delimiter)
84 string::size_type delim;
87 if ((delim = name.find_last_of (delimiter)) == string::npos) {
93 const char *last_element = name.c_str() + delim + 1;
94 for (size_t i = 0; i < strlen(last_element); i++) {
95 if (!isdigit(last_element[i])) {
102 int32_t version = strtol (name.c_str()+delim+1, (char **)NULL, 10);
104 if (isnumber == 0 || errno != 0) {
105 // last_element is not a number, or is too large
107 newname += delimiter;
112 snprintf (buf, sizeof(buf), "%d", version+1);
114 newname = name.substr (0, delim+1);
124 could_be_a_valid_path (const string& path)
126 vector<string> posix_dirs;
127 vector<string> dos_dirs;
130 split (path, posix_dirs, '/');
131 split (path, dos_dirs, '\\');
133 /* remove the last component of each */
135 posix_dirs.erase (--posix_dirs.end());
136 dos_dirs.erase (--dos_dirs.end());
138 if (G_DIR_SEPARATOR == '/') {
139 for (vector<string>::iterator x = posix_dirs.begin(); x != posix_dirs.end(); ++x) {
140 testpath = Glib::build_filename (testpath, *x);
141 cerr << "Testing " << testpath << endl;
142 if (!Glib::file_test (testpath, Glib::FILE_TEST_IS_DIR|Glib::FILE_TEST_EXISTS)) {
148 if (G_DIR_SEPARATOR == '\\') {
150 for (vector<string>::iterator x = dos_dirs.begin(); x != dos_dirs.end(); ++x) {
151 testpath = Glib::build_filename (testpath, *x);
152 cerr << "Testing " << testpath << endl;
153 if (!Glib::file_test (testpath, Glib::FILE_TEST_IS_DIR|Glib::FILE_TEST_EXISTS)) {
164 find_named_node (const XMLNode& node, string name)
167 XMLNodeConstIterator niter;
170 nlist = node.children();
172 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
176 if (child->name() == name) {
185 cmp_nocase (const string& s, const string& s2)
187 string::const_iterator p = s.begin();
188 string::const_iterator p2 = s2.begin();
190 while (p != s.end() && p2 != s2.end()) {
191 if (toupper(*p) != toupper(*p2)) {
192 return (toupper(*p) < toupper(*p2)) ? -1 : 1;
198 return (s2.size() == s.size()) ? 0 : (s.size() < s2.size()) ? -1 : 1;
202 touch_file (string path)
204 int fd = open (path.c_str(), O_RDWR|O_CREAT, 0660);
213 region_name_from_path (string path, bool strip_channels, bool add_channel_suffix, uint32_t total, uint32_t this_one)
215 path = PBD::basename_nosuffix (path);
217 if (strip_channels) {
219 /* remove any "?R", "?L" or "?[a-z]" channel identifier */
221 string::size_type len = path.length();
223 if (len > 3 && (path[len-2] == '%' || path[len-2] == '?' || path[len-2] == '.') &&
224 (path[len-1] == 'R' || path[len-1] == 'L' || (islower (path[len-1])))) {
226 path = path.substr (0, path.length() - 2);
230 if (add_channel_suffix) {
235 path += (char) ('a' + this_one);
237 path += (char) (this_one == 0 ? 'L' : 'R');
245 path_is_paired (string path, string& pair_base)
247 string::size_type pos;
249 /* remove any leading path */
251 if ((pos = path.find_last_of (G_DIR_SEPARATOR)) != string::npos) {
252 path = path.substr(pos+1);
255 /* remove filename suffixes etc. */
257 if ((pos = path.find_last_of ('.')) != string::npos) {
258 path = path.substr (0, pos);
261 string::size_type len = path.length();
263 /* look for possible channel identifier: "?R", "%R", ".L" etc. */
265 if (len > 3 && (path[len-2] == '%' || path[len-2] == '?' || path[len-2] == '.') &&
266 (path[len-1] == 'R' || path[len-1] == 'L' || (islower (path[len-1])))) {
268 pair_base = path.substr (0, len-2);
277 path_expand (string path)
284 /* Handle tilde and environment variable expansion in session path */
288 switch (wordexp (path.c_str(), &expansion, WRDE_NOCMD|WRDE_UNDEF)) {
292 error << string_compose (_("illegal or badly-formed string used for path (%1)"), path) << endmsg;
296 if (expansion.we_wordc > 1) {
298 for (unsigned int i = 0; i < expansion.we_wordc; ++i) {
302 all += expansion.we_wordv[i];
304 error << string_compose (_("path (%1) is ambiguous: %2"), path, all) << endmsg;
308 ret = expansion.we_wordv[0];
310 wordfree (&expansion);
320 CFStringRefToStdString(CFStringRef stringRef)
323 CFStringGetMaximumSizeForEncoding(CFStringGetLength(stringRef) ,
324 kCFStringEncodingUTF8);
325 char *buf = new char[size];
329 if(CFStringGetCString(stringRef, buf, size, kCFStringEncodingUTF8)) {
338 compute_equal_power_fades (framecnt_t nframes, float* in, float* out)
342 step = 1.0/(nframes-1);
346 for (framecnt_t i = 1; i < nframes - 1; ++i) {
347 in[i] = in[i-1] + step;
352 const float pan_law_attenuation = -3.0f;
353 const float scale = 2.0f - 4.0f * powf (10.0f,pan_law_attenuation/20.0f);
355 for (framecnt_t n = 0; n < nframes; ++n) {
357 float outVal = 1 - inVal;
358 out[n] = outVal * (scale * outVal + 1.0f - scale);
359 in[n] = inVal * (scale * inVal + 1.0f - scale);
364 string_to_edit_mode (string str)
366 if (str == _("Splice")) {
368 } else if (str == _("Slide")) {
370 } else if (str == _("Lock")) {
373 fatal << string_compose (_("programming error: unknown edit mode string \"%1\""), str) << endmsg;
379 edit_mode_to_string (EditMode mode)
395 string_to_sync_source (string str)
397 if (str == _("MIDI Timecode") || str == _("MTC")) {
401 if (str == _("MIDI Clock")) {
405 if (str == _("JACK")) {
409 fatal << string_compose (_("programming error: unknown sync source string \"%1\""), str) << endmsg;
414 /** @param sh Return a short version of the string */
416 sync_source_to_string (SyncSource src, bool sh)
426 return _("MIDI Timecode");
430 return _("MIDI Clock");
432 /* GRRRR .... stupid, stupid gcc - you can't get here from there, all enum values are handled */
437 meter_falloff_to_float (MeterFalloff falloff)
440 case MeterFalloffOff:
441 return METER_FALLOFF_OFF;
442 case MeterFalloffSlowest:
443 return METER_FALLOFF_SLOWEST;
444 case MeterFalloffSlow:
445 return METER_FALLOFF_SLOW;
446 case MeterFalloffMedium:
447 return METER_FALLOFF_MEDIUM;
448 case MeterFalloffFast:
449 return METER_FALLOFF_FAST;
450 case MeterFalloffFaster:
451 return METER_FALLOFF_FASTER;
452 case MeterFalloffFastest:
453 return METER_FALLOFF_FASTEST;
455 return METER_FALLOFF_FAST;
460 meter_falloff_from_float (float val)
462 if (val == METER_FALLOFF_OFF) {
463 return MeterFalloffOff;
465 else if (val <= METER_FALLOFF_SLOWEST) {
466 return MeterFalloffSlowest;
468 else if (val <= METER_FALLOFF_SLOW) {
469 return MeterFalloffSlow;
471 else if (val <= METER_FALLOFF_MEDIUM) {
472 return MeterFalloffMedium;
474 else if (val <= METER_FALLOFF_FAST) {
475 return MeterFalloffFast;
477 else if (val <= METER_FALLOFF_FASTER) {
478 return MeterFalloffFaster;
481 return MeterFalloffFastest;
486 ARDOUR::string_to_auto_state (std::string str)
488 if (str == X_("Off")) {
490 } else if (str == X_("Play")) {
492 } else if (str == X_("Write")) {
494 } else if (str == X_("Touch")) {
498 fatal << string_compose (_("programming error: %1 %2"), "illegal AutoState string: ", str) << endmsg;
504 ARDOUR::auto_state_to_string (AutoState as)
506 /* to be used only for XML serialization, no i18n done */
522 fatal << string_compose (_("programming error: %1 %2"), "illegal AutoState type: ", as) << endmsg;
528 ARDOUR::string_to_auto_style (std::string str)
530 if (str == X_("Absolute")) {
532 } else if (str == X_("Trim")) {
536 fatal << string_compose (_("programming error: %1 %2"), "illegal AutoStyle string: ", str) << endmsg;
542 ARDOUR::auto_style_to_string (AutoStyle as)
544 /* to be used only for XML serialization, no i18n done */
548 return X_("Absolute");
555 fatal << string_compose (_("programming error: %1 %2"), "illegal AutoStyle type: ", as) << endmsg;
561 bool_as_string (bool yn)
563 return (yn ? "yes" : "no");
567 string_is_affirmative (const std::string& str)
569 /* to be used only with XML data - not intended to handle user input */
575 /* the use of g_strncasecmp() is solely to get around issues with
576 * charsets posed by trying to use C++ for the same
577 * comparison. switching a std::string to its lower- or upper-case
578 * version has several issues, but handled by default
579 * in the way we desire when doing it in C.
582 return str == "1" || str == "y" || str == "Y" || (!g_strncasecmp(str.c_str(), "yes", str.length()));
586 native_header_format_extension (HeaderFormat hf, const DataType& type)
588 if (type == DataType::MIDI) {
609 fatal << string_compose (_("programming error: unknown native header format: %1"), hf);
615 matching_unsuffixed_filename_exists_in (const string& dir, const string& path)
617 string bws = basename_nosuffix (path);
618 struct dirent* dentry;
623 if ((dead = ::opendir (dir.c_str())) == 0) {
624 error << string_compose (_("cannot open directory %1 (%2)"), dir, strerror (errno)) << endl;
628 while ((dentry = ::readdir (dead)) != 0) {
630 /* avoid '.' and '..' */
632 if ((dentry->d_name[0] == '.' && dentry->d_name[1] == '\0') ||
633 (dentry->d_name[2] == '\0' && dentry->d_name[0] == '.' && dentry->d_name[1] == '.')) {
637 string fullpath = Glib::build_filename (dir, dentry->d_name);
639 if (::stat (fullpath.c_str(), &statbuf)) {
643 if (!S_ISREG (statbuf.st_mode)) {
647 string bws2 = basename_nosuffix (dentry->d_name);
660 how_many_dsp_threads ()
662 /* CALLER MUST HOLD PROCESS LOCK */
664 int num_cpu = hardware_concurrency();
665 int pu = Config->get_processor_usage ();
666 uint32_t num_threads = max (num_cpu - 1, 2); // default to number of cpus minus one, or 2, whichever is larger
669 /* pu is negative: use "pu" less cores for DSP than appear to be available
673 num_threads = num_cpu + pu;
676 } else if (pu == 0) {
678 /* use all available CPUs
681 num_threads = num_cpu;
684 /* use "pu" cores, if available
687 num_threads = min (num_cpu, pu);
693 double gain_to_slider_position_with_max (double g, double max_gain)
695 return gain_to_slider_position (g * 2.0/max_gain);
698 double slider_position_to_gain_with_max (double g, double max_gain)
700 return slider_position_to_gain (g * max_gain/2.0);
704 void c_stacktrace() { stacktrace (cerr); }