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 */
34 #include <sys/types.h>
41 #include <glibmm/miscutils.h>
42 #include <glibmm/fileutils.h>
49 #include "pbd/error.h"
50 #include "pbd/stacktrace.h"
51 #include "pbd/xml++.h"
52 #include "pbd/basename.h"
53 #include "pbd/strsplit.h"
55 #include "ardour/utils.h"
56 #include "ardour/rc_configuration.h"
60 using namespace ARDOUR;
65 legalize_for_path (const string& str)
67 string::size_type pos;
68 string illegal_chars = "/\\"; /* DOS, POSIX. Yes, we're going to ignore HFS */
74 while ((pos = legal.find_first_of (illegal_chars, pos)) != string::npos) {
75 legal.replace (pos, 1, "_");
79 return string (legal);
83 bump_name_once (const std::string& name, char delimiter)
85 string::size_type delim;
88 if ((delim = name.find_last_of (delimiter)) == string::npos) {
94 const char *last_element = name.c_str() + delim + 1;
95 for (size_t i = 0; i < strlen(last_element); i++) {
96 if (!isdigit(last_element[i])) {
103 int32_t version = strtol (name.c_str()+delim+1, (char **)NULL, 10);
105 if (isnumber == 0 || errno != 0) {
106 // last_element is not a number, or is too large
108 newname += delimiter;
113 snprintf (buf, sizeof(buf), "%d", version+1);
115 newname = name.substr (0, delim+1);
125 could_be_a_valid_path (const string& path)
127 vector<string> posix_dirs;
128 vector<string> dos_dirs;
131 split (path, posix_dirs, '/');
132 split (path, dos_dirs, '\\');
134 /* remove the last component of each */
136 posix_dirs.erase (--posix_dirs.end());
137 dos_dirs.erase (--dos_dirs.end());
139 if (G_DIR_SEPARATOR == '/') {
140 for (vector<string>::iterator x = posix_dirs.begin(); x != posix_dirs.end(); ++x) {
141 testpath = Glib::build_filename (testpath, *x);
142 cerr << "Testing " << testpath << endl;
143 if (!Glib::file_test (testpath, Glib::FILE_TEST_IS_DIR|Glib::FILE_TEST_EXISTS)) {
149 if (G_DIR_SEPARATOR == '\\') {
151 for (vector<string>::iterator x = dos_dirs.begin(); x != dos_dirs.end(); ++x) {
152 testpath = Glib::build_filename (testpath, *x);
153 cerr << "Testing " << testpath << endl;
154 if (!Glib::file_test (testpath, Glib::FILE_TEST_IS_DIR|Glib::FILE_TEST_EXISTS)) {
165 find_named_node (const XMLNode& node, string name)
168 XMLNodeConstIterator niter;
171 nlist = node.children();
173 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
177 if (child->name() == name) {
186 cmp_nocase (const string& s, const string& s2)
188 string::const_iterator p = s.begin();
189 string::const_iterator p2 = s2.begin();
191 while (p != s.end() && p2 != s2.end()) {
192 if (toupper(*p) != toupper(*p2)) {
193 return (toupper(*p) < toupper(*p2)) ? -1 : 1;
199 return (s2.size() == s.size()) ? 0 : (s.size() < s2.size()) ? -1 : 1;
203 touch_file (string path)
205 int fd = open (path.c_str(), O_RDWR|O_CREAT, 0660);
214 region_name_from_path (string path, bool strip_channels, bool add_channel_suffix, uint32_t total, uint32_t this_one)
216 path = PBD::basename_nosuffix (path);
218 if (strip_channels) {
220 /* remove any "?R", "?L" or "?[a-z]" channel identifier */
222 string::size_type len = path.length();
224 if (len > 3 && (path[len-2] == '%' || path[len-2] == '?' || path[len-2] == '.') &&
225 (path[len-1] == 'R' || path[len-1] == 'L' || (islower (path[len-1])))) {
227 path = path.substr (0, path.length() - 2);
231 if (add_channel_suffix) {
236 path += (char) ('a' + this_one);
238 path += (char) (this_one == 0 ? 'L' : 'R');
246 path_is_paired (string path, string& pair_base)
248 string::size_type pos;
250 /* remove any leading path */
252 if ((pos = path.find_last_of (G_DIR_SEPARATOR)) != string::npos) {
253 path = path.substr(pos+1);
256 /* remove filename suffixes etc. */
258 if ((pos = path.find_last_of ('.')) != string::npos) {
259 path = path.substr (0, pos);
262 string::size_type len = path.length();
264 /* look for possible channel identifier: "?R", "%R", ".L" etc. */
266 if (len > 3 && (path[len-2] == '%' || path[len-2] == '?' || path[len-2] == '.') &&
267 (path[len-1] == 'R' || path[len-1] == 'L' || (islower (path[len-1])))) {
269 pair_base = path.substr (0, len-2);
278 path_expand (string path)
285 /* Handle tilde and environment variable expansion in session path */
290 /* force field expansion to avoid use whitespace, since we know this is
294 char *oifs = getenv ("IFS");
295 setenv ("IFS", "/", 1);
296 int result = wordexp (path.c_str(), &expansion, WRDE_NOCMD|WRDE_UNDEF);
298 setenv ("IFS", oifs, 1);
307 /* see docs on wordexp() */
308 wordfree (&expansion);
311 error << string_compose (_("illegal or badly-formed string used for path (%1)"), path) << endmsg;
315 if (expansion.we_wordc > 1) {
317 for (unsigned int i = 0; i < expansion.we_wordc; ++i) {
321 all += expansion.we_wordv[i];
323 error << string_compose (_("path (%1) is ambiguous: %2"), path, all) << endmsg;
327 ret = expansion.we_wordv[0];
329 wordfree (&expansion);
339 CFStringRefToStdString(CFStringRef stringRef)
342 CFStringGetMaximumSizeForEncoding(CFStringGetLength(stringRef) ,
343 kCFStringEncodingUTF8);
344 char *buf = new char[size];
348 if(CFStringGetCString(stringRef, buf, size, kCFStringEncodingUTF8)) {
357 compute_equal_power_fades (framecnt_t nframes, float* in, float* out)
361 step = 1.0/(nframes-1);
365 for (framecnt_t i = 1; i < nframes - 1; ++i) {
366 in[i] = in[i-1] + step;
371 const float pan_law_attenuation = -3.0f;
372 const float scale = 2.0f - 4.0f * powf (10.0f,pan_law_attenuation/20.0f);
374 for (framecnt_t n = 0; n < nframes; ++n) {
376 float outVal = 1 - inVal;
377 out[n] = outVal * (scale * outVal + 1.0f - scale);
378 in[n] = inVal * (scale * inVal + 1.0f - scale);
383 string_to_edit_mode (string str)
385 if (str == _("Splice")) {
387 } else if (str == _("Slide")) {
389 } else if (str == _("Lock")) {
392 fatal << string_compose (_("programming error: unknown edit mode string \"%1\""), str) << endmsg;
398 edit_mode_to_string (EditMode mode)
414 string_to_sync_source (string str)
416 if (str == _("MIDI Timecode") || str == _("MTC")) {
420 if (str == _("MIDI Clock")) {
424 if (str == _("JACK")) {
428 fatal << string_compose (_("programming error: unknown sync source string \"%1\""), str) << endmsg;
433 /** @param sh Return a short version of the string */
435 sync_source_to_string (SyncSource src, bool sh)
445 return _("MIDI Timecode");
449 return _("MIDI Clock");
451 /* GRRRR .... stupid, stupid gcc - you can't get here from there, all enum values are handled */
456 meter_falloff_to_float (MeterFalloff falloff)
459 case MeterFalloffOff:
460 return METER_FALLOFF_OFF;
461 case MeterFalloffSlowest:
462 return METER_FALLOFF_SLOWEST;
463 case MeterFalloffSlow:
464 return METER_FALLOFF_SLOW;
465 case MeterFalloffMedium:
466 return METER_FALLOFF_MEDIUM;
467 case MeterFalloffFast:
468 return METER_FALLOFF_FAST;
469 case MeterFalloffFaster:
470 return METER_FALLOFF_FASTER;
471 case MeterFalloffFastest:
472 return METER_FALLOFF_FASTEST;
474 return METER_FALLOFF_FAST;
479 meter_falloff_from_float (float val)
481 if (val == METER_FALLOFF_OFF) {
482 return MeterFalloffOff;
484 else if (val <= METER_FALLOFF_SLOWEST) {
485 return MeterFalloffSlowest;
487 else if (val <= METER_FALLOFF_SLOW) {
488 return MeterFalloffSlow;
490 else if (val <= METER_FALLOFF_MEDIUM) {
491 return MeterFalloffMedium;
493 else if (val <= METER_FALLOFF_FAST) {
494 return MeterFalloffFast;
496 else if (val <= METER_FALLOFF_FASTER) {
497 return MeterFalloffFaster;
500 return MeterFalloffFastest;
505 ARDOUR::string_to_auto_state (std::string str)
507 if (str == X_("Off")) {
509 } else if (str == X_("Play")) {
511 } else if (str == X_("Write")) {
513 } else if (str == X_("Touch")) {
517 fatal << string_compose (_("programming error: %1 %2"), "illegal AutoState string: ", str) << endmsg;
523 ARDOUR::auto_state_to_string (AutoState as)
525 /* to be used only for XML serialization, no i18n done */
541 fatal << string_compose (_("programming error: %1 %2"), "illegal AutoState type: ", as) << endmsg;
547 ARDOUR::string_to_auto_style (std::string str)
549 if (str == X_("Absolute")) {
551 } else if (str == X_("Trim")) {
555 fatal << string_compose (_("programming error: %1 %2"), "illegal AutoStyle string: ", str) << endmsg;
561 ARDOUR::auto_style_to_string (AutoStyle as)
563 /* to be used only for XML serialization, no i18n done */
567 return X_("Absolute");
574 fatal << string_compose (_("programming error: %1 %2"), "illegal AutoStyle type: ", as) << endmsg;
580 bool_as_string (bool yn)
582 return (yn ? "yes" : "no");
586 string_is_affirmative (const std::string& str)
588 /* to be used only with XML data - not intended to handle user input */
594 /* the use of g_strncasecmp() is solely to get around issues with
595 * charsets posed by trying to use C++ for the same
596 * comparison. switching a std::string to its lower- or upper-case
597 * version has several issues, but handled by default
598 * in the way we desire when doing it in C.
601 return str == "1" || str == "y" || str == "Y" || (!g_strncasecmp(str.c_str(), "yes", str.length()));
605 native_header_format_extension (HeaderFormat hf, const DataType& type)
607 if (type == DataType::MIDI) {
628 fatal << string_compose (_("programming error: unknown native header format: %1"), hf);
634 matching_unsuffixed_filename_exists_in (const string& dir, const string& path)
636 string bws = basename_nosuffix (path);
637 struct dirent* dentry;
642 if ((dead = ::opendir (dir.c_str())) == 0) {
643 error << string_compose (_("cannot open directory %1 (%2)"), dir, strerror (errno)) << endl;
647 while ((dentry = ::readdir (dead)) != 0) {
649 /* avoid '.' and '..' */
651 if ((dentry->d_name[0] == '.' && dentry->d_name[1] == '\0') ||
652 (dentry->d_name[2] == '\0' && dentry->d_name[0] == '.' && dentry->d_name[1] == '.')) {
656 string fullpath = Glib::build_filename (dir, dentry->d_name);
658 if (::stat (fullpath.c_str(), &statbuf)) {
662 if (!S_ISREG (statbuf.st_mode)) {
666 string bws2 = basename_nosuffix (dentry->d_name);
679 how_many_dsp_threads ()
681 /* CALLER MUST HOLD PROCESS LOCK */
683 int num_cpu = hardware_concurrency();
684 int pu = Config->get_processor_usage ();
685 uint32_t num_threads = max (num_cpu - 1, 2); // default to number of cpus minus one, or 2, whichever is larger
688 /* pu is negative: use "pu" less cores for DSP than appear to be available
692 num_threads = num_cpu + pu;
695 } else if (pu == 0) {
697 /* use all available CPUs
700 num_threads = num_cpu;
703 /* use "pu" cores, if available
706 num_threads = min (num_cpu, pu);
712 double gain_to_slider_position_with_max (double g, double max_gain)
714 return gain_to_slider_position (g * 2.0/max_gain);
717 double slider_position_to_gain_with_max (double g, double max_gain)
719 return slider_position_to_gain (g * max_gain/2.0);
723 void c_stacktrace() { stacktrace (cerr); }