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livetrax/libs/ardour/utils.cc
Paul Davis 88d5649511 removed long-ifdef'ed-out code
git-svn-id: svn://localhost/ardour2/branches/3.0@9129 d708f5d6-7413-0410-9779-e7cbd77b26cf
2011-03-12 20:24:32 +00:00

678 lines
15 KiB
C++

/*
Copyright (C) 2000-2003 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef WAF_BUILD
#include "libardour-config.h"
#endif
#include <stdint.h>
#include <cstdio> /* for sprintf */
#include <cstring>
#include <cmath>
#include <cctype>
#include <cstring>
#include <cerrno>
#include <iostream>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <fcntl.h>
#include <dirent.h>
#include <errno.h>
#include <glibmm/miscutils.h>
#include <glibmm/fileutils.h>
#ifdef HAVE_WORDEXP
#include <wordexp.h>
#endif
#include "pbd/cpus.h"
#include "pbd/error.h"
#include "pbd/stacktrace.h"
#include "pbd/xml++.h"
#include "pbd/basename.h"
#include "pbd/strsplit.h"
#include "ardour/utils.h"
#include "ardour/rc_configuration.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace std;
using namespace PBD;
string
legalize_for_path (const string& str)
{
string::size_type pos;
string illegal_chars = "/\\"; /* DOS, POSIX. Yes, we're going to ignore HFS */
string legal;
legal = str;
pos = 0;
while ((pos = legal.find_first_of (illegal_chars, pos)) != string::npos) {
legal.replace (pos, 1, "_");
pos += 1;
}
return legal;
}
string
bump_name_once (const std::string& name, char delimiter)
{
string::size_type delim;
string newname;
if ((delim = name.find_last_of (delimiter)) == string::npos) {
newname = name;
newname += delimiter;
newname += "1";
} else {
int isnumber = 1;
const char *last_element = name.c_str() + delim + 1;
for (size_t i = 0; i < strlen(last_element); i++) {
if (!isdigit(last_element[i])) {
isnumber = 0;
break;
}
}
errno = 0;
int32_t version = strtol (name.c_str()+delim+1, (char **)NULL, 10);
if (isnumber == 0 || errno != 0) {
// last_element is not a number, or is too large
newname = name;
newname += delimiter;
newname += "1";
} else {
char buf[32];
snprintf (buf, sizeof(buf), "%d", version+1);
newname = name.substr (0, delim+1);
newname += buf;
}
}
return newname;
}
bool
could_be_a_valid_path (const string& path)
{
vector<string> posix_dirs;
vector<string> dos_dirs;
string testpath;
split (path, posix_dirs, '/');
split (path, dos_dirs, '\\');
/* remove the last component of each */
posix_dirs.erase (--posix_dirs.end());
dos_dirs.erase (--dos_dirs.end());
if (G_DIR_SEPARATOR == '/') {
for (vector<string>::iterator x = posix_dirs.begin(); x != posix_dirs.end(); ++x) {
testpath = Glib::build_filename (testpath, *x);
cerr << "Testing " << testpath << endl;
if (!Glib::file_test (testpath, Glib::FILE_TEST_IS_DIR|Glib::FILE_TEST_EXISTS)) {
return false;
}
}
}
if (G_DIR_SEPARATOR == '\\') {
testpath = "";
for (vector<string>::iterator x = dos_dirs.begin(); x != dos_dirs.end(); ++x) {
testpath = Glib::build_filename (testpath, *x);
cerr << "Testing " << testpath << endl;
if (!Glib::file_test (testpath, Glib::FILE_TEST_IS_DIR|Glib::FILE_TEST_EXISTS)) {
return false;
}
}
}
return true;
}
XMLNode *
find_named_node (const XMLNode& node, string name)
{
XMLNodeList nlist;
XMLNodeConstIterator niter;
XMLNode* child;
nlist = node.children();
for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
child = *niter;
if (child->name() == name) {
return child;
}
}
return 0;
}
int
cmp_nocase (const string& s, const string& s2)
{
string::const_iterator p = s.begin();
string::const_iterator p2 = s2.begin();
while (p != s.end() && p2 != s2.end()) {
if (toupper(*p) != toupper(*p2)) {
return (toupper(*p) < toupper(*p2)) ? -1 : 1;
}
++p;
++p2;
}
return (s2.size() == s.size()) ? 0 : (s.size() < s2.size()) ? -1 : 1;
}
int
touch_file (string path)
{
int fd = open (path.c_str(), O_RDWR|O_CREAT, 0660);
if (fd >= 0) {
close (fd);
return 0;
}
return 1;
}
string
region_name_from_path (string path, bool strip_channels, bool add_channel_suffix, uint32_t total, uint32_t this_one)
{
path = PBD::basename_nosuffix (path);
if (strip_channels) {
/* remove any "?R", "?L" or "?[a-z]" channel identifier */
string::size_type len = path.length();
if (len > 3 && (path[len-2] == '%' || path[len-2] == '?' || path[len-2] == '.') &&
(path[len-1] == 'R' || path[len-1] == 'L' || (islower (path[len-1])))) {
path = path.substr (0, path.length() - 2);
}
}
if (add_channel_suffix) {
path += '%';
if (total > 2) {
path += (char) ('a' + this_one);
} else {
path += (char) (this_one == 0 ? 'L' : 'R');
}
}
return path;
}
bool
path_is_paired (string path, string& pair_base)
{
string::size_type pos;
/* remove any leading path */
if ((pos = path.find_last_of (G_DIR_SEPARATOR)) != string::npos) {
path = path.substr(pos+1);
}
/* remove filename suffixes etc. */
if ((pos = path.find_last_of ('.')) != string::npos) {
path = path.substr (0, pos);
}
string::size_type len = path.length();
/* look for possible channel identifier: "?R", "%R", ".L" etc. */
if (len > 3 && (path[len-2] == '%' || path[len-2] == '?' || path[len-2] == '.') &&
(path[len-1] == 'R' || path[len-1] == 'L' || (islower (path[len-1])))) {
pair_base = path.substr (0, len-2);
return true;
}
return false;
}
string
path_expand (string path)
{
if (path.empty()) {
return path;
}
#ifdef HAVE_WORDEXP
/* Handle tilde and environment variable expansion in session path */
string ret = path;
wordexp_t expansion;
switch (wordexp (path.c_str(), &expansion, WRDE_NOCMD|WRDE_UNDEF)) {
case 0:
break;
default:
error << string_compose (_("illegal or badly-formed string used for path (%1)"), path) << endmsg;
goto out;
}
if (expansion.we_wordc > 1) {
error << string_compose (_("path (%1) is ambiguous"), path) << endmsg;
goto out;
}
ret = expansion.we_wordv[0];
out:
wordfree (&expansion);
return ret;
#else
return path;
#endif
}
#if __APPLE__
string
CFStringRefToStdString(CFStringRef stringRef)
{
CFIndex size =
CFStringGetMaximumSizeForEncoding(CFStringGetLength(stringRef) ,
kCFStringEncodingUTF8);
char *buf = new char[size];
std::string result;
if(CFStringGetCString(stringRef, buf, size, kCFStringEncodingUTF8)) {
result = buf;
}
delete [] buf;
return result;
}
#endif // __APPLE__
void
compute_equal_power_fades (framecnt_t nframes, float* in, float* out)
{
double step;
step = 1.0/(nframes-1);
in[0] = 0.0f;
for (framecnt_t i = 1; i < nframes - 1; ++i) {
in[i] = in[i-1] + step;
}
in[nframes-1] = 1.0;
const float pan_law_attenuation = -3.0f;
const float scale = 2.0f - 4.0f * powf (10.0f,pan_law_attenuation/20.0f);
for (framecnt_t n = 0; n < nframes; ++n) {
float inVal = in[n];
float outVal = 1 - inVal;
out[n] = outVal * (scale * outVal + 1.0f - scale);
in[n] = inVal * (scale * inVal + 1.0f - scale);
}
}
EditMode
string_to_edit_mode (string str)
{
if (str == _("Splice")) {
return Splice;
} else if (str == _("Slide")) {
return Slide;
} else if (str == _("Lock")) {
return Lock;
}
fatal << string_compose (_("programming error: unknown edit mode string \"%1\""), str) << endmsg;
/*NOTREACHED*/
return Slide;
}
const char*
edit_mode_to_string (EditMode mode)
{
switch (mode) {
case Slide:
return _("Slide");
case Lock:
return _("Lock");
default:
case Splice:
return _("Splice");
}
}
SyncSource
string_to_sync_source (string str)
{
if (str == _("MIDI Timecode") || str == _("MTC")) {
return MTC;
}
if (str == _("MIDI Clock")) {
return MIDIClock;
}
if (str == _("JACK")) {
return JACK;
}
fatal << string_compose (_("programming error: unknown sync source string \"%1\""), str) << endmsg;
/*NOTREACHED*/
return JACK;
}
/** @param sh Return a short version of the string */
const char*
sync_source_to_string (SyncSource src, bool sh)
{
switch (src) {
case JACK:
return _("JACK");
case MTC:
if (sh) {
return _("MTC");
} else {
return _("MIDI Timecode");
}
case MIDIClock:
return _("MIDI Clock");
}
/* GRRRR .... stupid, stupid gcc - you can't get here from there, all enum values are handled */
return _("JACK");
}
float
meter_falloff_to_float (MeterFalloff falloff)
{
switch (falloff) {
case MeterFalloffOff:
return METER_FALLOFF_OFF;
case MeterFalloffSlowest:
return METER_FALLOFF_SLOWEST;
case MeterFalloffSlow:
return METER_FALLOFF_SLOW;
case MeterFalloffMedium:
return METER_FALLOFF_MEDIUM;
case MeterFalloffFast:
return METER_FALLOFF_FAST;
case MeterFalloffFaster:
return METER_FALLOFF_FASTER;
case MeterFalloffFastest:
return METER_FALLOFF_FASTEST;
default:
return METER_FALLOFF_FAST;
}
}
MeterFalloff
meter_falloff_from_float (float val)
{
if (val == METER_FALLOFF_OFF) {
return MeterFalloffOff;
}
else if (val <= METER_FALLOFF_SLOWEST) {
return MeterFalloffSlowest;
}
else if (val <= METER_FALLOFF_SLOW) {
return MeterFalloffSlow;
}
else if (val <= METER_FALLOFF_MEDIUM) {
return MeterFalloffMedium;
}
else if (val <= METER_FALLOFF_FAST) {
return MeterFalloffFast;
}
else if (val <= METER_FALLOFF_FASTER) {
return MeterFalloffFaster;
}
else {
return MeterFalloffFastest;
}
}
AutoState
ARDOUR::string_to_auto_state (std::string str)
{
if (str == X_("Off")) {
return Off;
} else if (str == X_("Play")) {
return Play;
} else if (str == X_("Write")) {
return Write;
} else if (str == X_("Touch")) {
return Touch;
}
fatal << string_compose (_("programming error: %1 %2"), "illegal AutoState string: ", str) << endmsg;
/*NOTREACHED*/
return Touch;
}
string
ARDOUR::auto_state_to_string (AutoState as)
{
/* to be used only for XML serialization, no i18n done */
switch (as) {
case Off:
return X_("Off");
break;
case Play:
return X_("Play");
break;
case Write:
return X_("Write");
break;
case Touch:
return X_("Touch");
}
fatal << string_compose (_("programming error: %1 %2"), "illegal AutoState type: ", as) << endmsg;
/*NOTREACHED*/
return "";
}
AutoStyle
ARDOUR::string_to_auto_style (std::string str)
{
if (str == X_("Absolute")) {
return Absolute;
} else if (str == X_("Trim")) {
return Trim;
}
fatal << string_compose (_("programming error: %1 %2"), "illegal AutoStyle string: ", str) << endmsg;
/*NOTREACHED*/
return Trim;
}
string
ARDOUR::auto_style_to_string (AutoStyle as)
{
/* to be used only for XML serialization, no i18n done */
switch (as) {
case Absolute:
return X_("Absolute");
break;
case Trim:
return X_("Trim");
break;
}
fatal << string_compose (_("programming error: %1 %2"), "illegal AutoStyle type: ", as) << endmsg;
/*NOTREACHED*/
return "";
}
std::string
bool_as_string (bool yn)
{
return (yn ? "yes" : "no");
}
bool
string_is_affirmative (const std::string& str)
{
/* to be used only with XML data - not intended to handle user input */
return str == "1" || str == "y" || str == "Y" || (!g_strncasecmp(str.c_str(), "yes", str.length()));
}
const char*
native_header_format_extension (HeaderFormat hf, const DataType& type)
{
if (type == DataType::MIDI) {
return ".mid";
}
switch (hf) {
case BWF:
return ".wav";
case WAVE:
return ".wav";
case WAVE64:
return ".w64";
case CAF:
return ".caf";
case AIFF:
return ".aif";
case iXML:
return ".ixml";
case RF64:
return ".rf64";
}
fatal << string_compose (_("programming error: unknown native header format: %1"), hf);
/*NOTREACHED*/
return ".wav";
}
bool
matching_unsuffixed_filename_exists_in (const string& dir, const string& path)
{
string bws = basename_nosuffix (path);
struct dirent* dentry;
struct stat statbuf;
DIR* dead;
bool ret = false;
if ((dead = ::opendir (dir.c_str())) == 0) {
error << string_compose (_("cannot open directory %1 (%2)"), dir, strerror (errno)) << endl;
return false;
}
while ((dentry = ::readdir (dead)) != 0) {
/* avoid '.' and '..' */
if ((dentry->d_name[0] == '.' && dentry->d_name[1] == '\0') ||
(dentry->d_name[2] == '\0' && dentry->d_name[0] == '.' && dentry->d_name[1] == '.')) {
continue;
}
string fullpath = Glib::build_filename (dir, dentry->d_name);
if (::stat (fullpath.c_str(), &statbuf)) {
continue;
}
if (!S_ISREG (statbuf.st_mode)) {
continue;
}
string bws2 = basename_nosuffix (dentry->d_name);
if (bws2 == bws) {
ret = true;
break;
}
}
::closedir (dead);
return ret;
}
uint32_t
how_many_dsp_threads ()
{
/* CALLER MUST HOLD PROCESS LOCK */
int num_cpu = hardware_concurrency();
int pu = Config->get_processor_usage ();
uint32_t num_threads = max (num_cpu - 1, 2); // default to number of cpus minus one, or 2, whichever is larger
if (pu < 0) {
/* pu is negative: use "pu" less cores for DSP than appear to be available
*/
if (-pu < num_cpu) {
num_threads = num_cpu + pu;
}
} else if (pu == 0) {
/* use all available CPUs
*/
num_threads = num_cpu;
} else {
/* use "pu" cores, if available
*/
num_threads = min (num_cpu, pu);
}
return num_threads;
}
extern "C" {
void c_stacktrace() { stacktrace (cerr); }
}