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 */
35 #include <sys/types.h>
43 #include <glibmm/miscutils.h>
44 #include <glibmm/fileutils.h>
47 #include "pbd/error.h"
48 #include "pbd/stacktrace.h"
49 #include "pbd/xml++.h"
50 #include "pbd/basename.h"
51 #include "pbd/strsplit.h"
52 #include "pbd/replace_all.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)
283 /* tilde expansion */
285 if (path[0] == '~') {
286 if (path.length() == 1) {
287 return Glib::get_home_dir();
290 if (path[1] == '/') {
291 path.replace (0, 1, Glib::get_home_dir());
293 /* can't handle ~roger, so just leave it */
297 /* now do $VAR substitution, since wordexp isn't reliable */
299 regex_t compiled_pattern;
300 const int nmatches = 100;
301 regmatch_t matches[nmatches];
303 if (regcomp (&compiled_pattern, "\\$([a-zA-Z_][a-zA-Z0-9_]*|\\{[a-zA-Z_][a-zA-Z0-9_]*\\})", REG_EXTENDED)) {
304 cerr << "bad regcomp\n";
310 if (regexec (&compiled_pattern, path.c_str(), nmatches, matches, 0)) {
314 /* matches[0] gives the entire match */
316 string match = path.substr (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so);
318 /* try to get match from the environment */
320 if (match[1] == '{') {
322 match = match.substr (2, match.length() - 3);
325 char* matched_value = getenv (match.c_str());
328 path.replace (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so, matched_value);
330 path.replace (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so, string());
333 /* go back and do it again with whatever remains after the
338 regfree (&compiled_pattern);
342 char buf[PATH_MAX+1];
344 if (realpath (path.c_str(), buf)) {
352 search_path_expand (string path)
361 split (path, s, ':');
363 for (vector<string>::iterator i = s.begin(); i != s.end(); ++i) {
364 string exp = path_expand (*i);
372 for (vector<string>::iterator i = n.begin(); i != n.end(); ++i) {
384 CFStringRefToStdString(CFStringRef stringRef)
387 CFStringGetMaximumSizeForEncoding(CFStringGetLength(stringRef) ,
388 kCFStringEncodingUTF8);
389 char *buf = new char[size];
393 if(CFStringGetCString(stringRef, buf, size, kCFStringEncodingUTF8)) {
402 compute_equal_power_fades (framecnt_t nframes, float* in, float* out)
406 step = 1.0/(nframes-1);
410 for (framecnt_t i = 1; i < nframes - 1; ++i) {
411 in[i] = in[i-1] + step;
416 const float pan_law_attenuation = -3.0f;
417 const float scale = 2.0f - 4.0f * powf (10.0f,pan_law_attenuation/20.0f);
419 for (framecnt_t n = 0; n < nframes; ++n) {
421 float outVal = 1 - inVal;
422 out[n] = outVal * (scale * outVal + 1.0f - scale);
423 in[n] = inVal * (scale * inVal + 1.0f - scale);
428 string_to_edit_mode (string str)
430 if (str == _("Splice")) {
432 } else if (str == _("Slide")) {
434 } else if (str == _("Lock")) {
437 fatal << string_compose (_("programming error: unknown edit mode string \"%1\""), str) << endmsg;
443 edit_mode_to_string (EditMode mode)
459 string_to_sync_source (string str)
461 if (str == _("MIDI Timecode") || str == _("MTC")) {
465 if (str == _("MIDI Clock")) {
469 if (str == _("JACK")) {
473 fatal << string_compose (_("programming error: unknown sync source string \"%1\""), str) << endmsg;
478 /** @param sh Return a short version of the string */
480 sync_source_to_string (SyncSource src, bool sh)
490 return _("MIDI Timecode");
494 return _("MIDI Clock");
496 /* GRRRR .... stupid, stupid gcc - you can't get here from there, all enum values are handled */
501 meter_falloff_to_float (MeterFalloff falloff)
504 case MeterFalloffOff:
505 return METER_FALLOFF_OFF;
506 case MeterFalloffSlowest:
507 return METER_FALLOFF_SLOWEST;
508 case MeterFalloffSlow:
509 return METER_FALLOFF_SLOW;
510 case MeterFalloffMedium:
511 return METER_FALLOFF_MEDIUM;
512 case MeterFalloffFast:
513 return METER_FALLOFF_FAST;
514 case MeterFalloffFaster:
515 return METER_FALLOFF_FASTER;
516 case MeterFalloffFastest:
517 return METER_FALLOFF_FASTEST;
519 return METER_FALLOFF_FAST;
524 meter_falloff_from_float (float val)
526 if (val == METER_FALLOFF_OFF) {
527 return MeterFalloffOff;
529 else if (val <= METER_FALLOFF_SLOWEST) {
530 return MeterFalloffSlowest;
532 else if (val <= METER_FALLOFF_SLOW) {
533 return MeterFalloffSlow;
535 else if (val <= METER_FALLOFF_MEDIUM) {
536 return MeterFalloffMedium;
538 else if (val <= METER_FALLOFF_FAST) {
539 return MeterFalloffFast;
541 else if (val <= METER_FALLOFF_FASTER) {
542 return MeterFalloffFaster;
545 return MeterFalloffFastest;
550 ARDOUR::string_to_auto_state (std::string str)
552 if (str == X_("Off")) {
554 } else if (str == X_("Play")) {
556 } else if (str == X_("Write")) {
558 } else if (str == X_("Touch")) {
562 fatal << string_compose (_("programming error: %1 %2"), "illegal AutoState string: ", str) << endmsg;
568 ARDOUR::auto_state_to_string (AutoState as)
570 /* to be used only for XML serialization, no i18n done */
586 fatal << string_compose (_("programming error: %1 %2"), "illegal AutoState type: ", as) << endmsg;
592 ARDOUR::string_to_auto_style (std::string str)
594 if (str == X_("Absolute")) {
596 } else if (str == X_("Trim")) {
600 fatal << string_compose (_("programming error: %1 %2"), "illegal AutoStyle string: ", str) << endmsg;
606 ARDOUR::auto_style_to_string (AutoStyle as)
608 /* to be used only for XML serialization, no i18n done */
612 return X_("Absolute");
619 fatal << string_compose (_("programming error: %1 %2"), "illegal AutoStyle type: ", as) << endmsg;
625 bool_as_string (bool yn)
627 return (yn ? "yes" : "no");
631 string_is_affirmative (const std::string& str)
633 /* to be used only with XML data - not intended to handle user input */
639 /* the use of g_strncasecmp() is solely to get around issues with
640 * charsets posed by trying to use C++ for the same
641 * comparison. switching a std::string to its lower- or upper-case
642 * version has several issues, but handled by default
643 * in the way we desire when doing it in C.
646 return str == "1" || str == "y" || str == "Y" || (!g_strncasecmp(str.c_str(), "yes", str.length())) ||
647 (!g_strncasecmp(str.c_str(), "true", str.length()));
651 native_header_format_extension (HeaderFormat hf, const DataType& type)
653 if (type == DataType::MIDI) {
674 fatal << string_compose (_("programming error: unknown native header format: %1"), hf);
680 matching_unsuffixed_filename_exists_in (const string& dir, const string& path)
682 string bws = basename_nosuffix (path);
683 struct dirent* dentry;
688 if ((dead = ::opendir (dir.c_str())) == 0) {
689 error << string_compose (_("cannot open directory %1 (%2)"), dir, strerror (errno)) << endl;
693 while ((dentry = ::readdir (dead)) != 0) {
695 /* avoid '.' and '..' */
697 if ((dentry->d_name[0] == '.' && dentry->d_name[1] == '\0') ||
698 (dentry->d_name[2] == '\0' && dentry->d_name[0] == '.' && dentry->d_name[1] == '.')) {
702 string fullpath = Glib::build_filename (dir, dentry->d_name);
704 if (::stat (fullpath.c_str(), &statbuf)) {
708 if (!S_ISREG (statbuf.st_mode)) {
712 string bws2 = basename_nosuffix (dentry->d_name);
725 how_many_dsp_threads ()
727 /* CALLER MUST HOLD PROCESS LOCK */
729 int num_cpu = hardware_concurrency();
730 int pu = Config->get_processor_usage ();
731 uint32_t num_threads = max (num_cpu - 1, 2); // default to number of cpus minus one, or 2, whichever is larger
734 /* pu is negative: use "pu" less cores for DSP than appear to be available
738 num_threads = num_cpu + pu;
741 } else if (pu == 0) {
743 /* use all available CPUs
746 num_threads = num_cpu;
749 /* use "pu" cores, if available
752 num_threads = min (num_cpu, pu);
758 double gain_to_slider_position_with_max (double g, double max_gain)
760 return gain_to_slider_position (g * 2.0/max_gain);
763 double slider_position_to_gain_with_max (double g, double max_gain)
765 return slider_position_to_gain (g * max_gain/2.0);
768 /** @return true if files a and b have the same inode */
770 inodes_same (const string& a, const string& b)
773 int const rA = stat (a.c_str(), &bA);
775 int const rB = stat (b.c_str(), &bB);
777 return (rA == 0 && rB == 0 && bA.st_ino == bB.st_ino);
781 void c_stacktrace() { stacktrace (cerr); }