2 Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 /** @file src/lib/util.cc
22 * @brief Some utility functions and classes.
29 #include "audio_buffers.h"
30 #include "audio_processor.h"
31 #include "cinema_sound_processor.h"
32 #include "compose.hpp"
34 #include "constants.h"
37 #include "dcp_content_type.h"
38 #include "dcpomatic_log.h"
40 #include "exceptions.h"
41 #include "ffmpeg_image_proxy.h"
46 #include "job_manager.h"
49 #include "render_text.h"
50 #include "string_text.h"
51 #include "text_decoder.h"
53 #include "video_content.h"
54 #include <dcp/atmos_asset.h>
55 #include <dcp/decrypted_kdm.h>
56 #include <dcp/locale_convert.h>
57 #include <dcp/picture_asset.h>
58 #include <dcp/raw_convert.h>
59 #include <dcp/sound_asset.h>
60 #include <dcp/subtitle_asset.h>
62 #include <dcp/warnings.h>
63 LIBDCP_DISABLE_WARNINGS
65 #include <libavfilter/avfilter.h>
66 #include <libavformat/avformat.h>
67 #include <libavcodec/avcodec.h>
69 LIBDCP_ENABLE_WARNINGS
70 #include <curl/curl.h>
72 #include <pangomm/init.h>
73 #include <unicode/utypes.h>
74 #include <unicode/unistr.h>
75 #include <unicode/translit.h>
76 #include <boost/algorithm/string.hpp>
77 #include <boost/range/algorithm/replace_if.hpp>
78 #include <boost/thread.hpp>
79 #include <boost/filesystem.hpp>
80 LIBDCP_DISABLE_WARNINGS
81 #include <boost/locale.hpp>
82 LIBDCP_ENABLE_WARNINGS
83 #ifdef DCPOMATIC_WINDOWS
92 #ifdef DCPOMATIC_POSIX
100 using std::bad_alloc;
105 using std::make_pair;
106 using std::make_shared;
111 using std::set_terminate;
112 using std::shared_ptr;
117 using boost::optional;
118 using boost::lexical_cast;
119 using boost::bad_lexical_cast;
120 using boost::scoped_array;
122 using dcp::raw_convert;
123 using dcp::locale_convert;
124 using namespace dcpomatic;
127 /** Path to our executable, required by the stacktrace stuff and filled
128 * in during App::onInit().
131 bool is_batch_converter = false;
132 static boost::thread::id ui_thread;
133 static boost::filesystem::path backtrace_file;
135 /** Convert some number of seconds to a string representation
136 * in hours, minutes and seconds.
139 * @return String of the form H:M:S (where H is hours, M
140 * is minutes and S is seconds).
143 seconds_to_hms (int s)
151 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d", h, m, s);
156 time_to_hmsf (DCPTime time, Frame rate)
158 Frame f = time.frames_round (rate);
167 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d.%d", h, m, s, static_cast<int>(f));
171 /** @param s Number of seconds.
172 * @return String containing an approximate description of s (e.g. "about 2 hours")
175 seconds_to_approximate_hms (int s)
185 bool minutes = h < 6 && m > 0;
186 bool seconds = h == 0 && m < 10 && s > 0;
188 if (m > 30 && !minutes) {
189 /* round up the hours */
192 if (s > 30 && !seconds) {
193 /* round up the minutes */
203 /// TRANSLATORS: h here is an abbreviation for hours
204 ap += locale_convert<string>(h) + _("h");
206 if (minutes || seconds) {
212 /// TRANSLATORS: m here is an abbreviation for minutes
213 ap += locale_convert<string>(m) + _("m");
222 /// TRANSLATORS: s here is an abbreviation for seconds
223 ap += locale_convert<string>(s) + _("s");
230 seconds (struct timeval t)
232 return t.tv_sec + (double (t.tv_usec) / 1e6);
235 #ifdef DCPOMATIC_WINDOWS
237 /** Resolve symbol name and source location given the path to the executable */
239 addr2line (void const * const addr)
241 char addr2line_cmd[512] = { 0 };
242 sprintf (addr2line_cmd, "addr2line -f -p -e %.256s %p > %s", program_name.c_str(), addr, backtrace_file.string().c_str());
243 return system(addr2line_cmd);
246 LIBDCP_DISABLE_WARNINGS
247 /** This is called when C signals occur on Windows (e.g. SIGSEGV)
248 * (NOT C++ exceptions!). We write a backtrace to backtrace_file by dark means.
249 * Adapted from code here: http://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c/
252 exception_handler(struct _EXCEPTION_POINTERS * info)
254 dcp::File f(backtrace_file, "w");
256 fprintf(f.get(), "C-style exception %d\n", info->ExceptionRecord->ExceptionCode);
260 if (info->ExceptionRecord->ExceptionCode != EXCEPTION_STACK_OVERFLOW) {
261 CONTEXT* context = info->ContextRecord;
262 SymInitialize (GetCurrentProcess (), 0, true);
264 STACKFRAME frame = { 0 };
266 /* setup initial stack frame */
268 frame.AddrPC.Offset = context->Rip;
269 frame.AddrStack.Offset = context->Rsp;
270 frame.AddrFrame.Offset = context->Rbp;
272 frame.AddrPC.Offset = context->Eip;
273 frame.AddrStack.Offset = context->Esp;
274 frame.AddrFrame.Offset = context->Ebp;
276 frame.AddrPC.Mode = AddrModeFlat;
277 frame.AddrStack.Mode = AddrModeFlat;
278 frame.AddrFrame.Mode = AddrModeFlat;
282 IMAGE_FILE_MACHINE_I386,
283 GetCurrentProcess (),
288 SymFunctionTableAccess,
293 addr2line((void *) frame.AddrPC.Offset);
297 addr2line ((void *) info->ContextRecord->Rip);
299 addr2line ((void *) info->ContextRecord->Eip);
303 return EXCEPTION_CONTINUE_SEARCH;
305 LIBDCP_ENABLE_WARNINGS
309 set_backtrace_file (boost::filesystem::path p)
314 /** This is called when there is an unhandled exception. Any
315 * backtrace in this function is useless on Windows as the stack has
316 * already been unwound from the throw; we have the gdb wrap hack to
323 static bool tried_throw = false;
324 // try once to re-throw currently active exception
330 catch (const std::exception &e) {
331 std::cerr << __FUNCTION__ << " caught unhandled exception. what(): "
332 << e.what() << std::endl;
335 std::cerr << __FUNCTION__ << " caught unknown/unhandled exception."
343 dcpomatic_setup_path_encoding ()
345 #ifdef DCPOMATIC_WINDOWS
346 /* Dark voodoo which, I think, gets boost::filesystem::path to
347 correctly convert UTF-8 strings to paths, and also paths
348 back to UTF-8 strings (on path::string()).
350 After this, constructing boost::filesystem::paths from strings
351 converts from UTF-8 to UTF-16 inside the path. Then
352 path::string().c_str() gives UTF-8 and
353 path::c_str() gives UTF-16.
355 This is all Windows-only. AFAICT Linux/OS X use UTF-8 everywhere,
356 so things are much simpler.
358 std::locale::global (boost::locale::generator().generate (""));
359 boost::filesystem::path::imbue (std::locale ());
364 class LogSink : public Kumu::ILogSink
368 LogSink (LogSink const&) = delete;
369 LogSink& operator= (LogSink const&) = delete;
371 void WriteEntry(const Kumu::LogEntry& entry) override {
372 Kumu::AutoMutex L(m_lock);
373 WriteEntryToListeners(entry);
374 if (entry.TestFilter(m_filter)) {
376 entry.CreateStringWithOptions(buffer, m_options);
377 LOG_GENERAL("asdcplib: %1", buffer);
384 capture_asdcp_logs ()
386 static LogSink log_sink;
387 Kumu::SetDefaultLogSink(&log_sink);
391 /** Call the required functions to set up DCP-o-matic's static arrays, etc.
392 * Must be called from the UI thread, if there is one.
397 #ifdef DCPOMATIC_WINDOWS
398 boost::filesystem::path p = g_get_user_config_dir ();
399 p /= "backtrace.txt";
400 set_backtrace_file (p);
401 SetUnhandledExceptionFilter(exception_handler);
404 #ifdef DCPOMATIC_HAVE_AVREGISTER
405 LIBDCP_DISABLE_WARNINGS
407 avfilter_register_all ();
408 LIBDCP_ENABLE_WARNINGS
412 /* Add our library directory to the libltdl search path so that
413 xmlsec can find xmlsec1-openssl.
415 auto lib = directory_containing_executable().parent_path();
417 setenv ("LTDL_LIBRARY_PATH", lib.c_str (), 1);
420 set_terminate (terminate);
422 #ifdef DCPOMATIC_WINDOWS
423 putenv ("PANGOCAIRO_BACKEND=fontconfig");
424 putenv (String::compose("FONTCONFIG_PATH=%1", resources_path().string()).c_str());
428 setenv ("PANGOCAIRO_BACKEND", "fontconfig", 1);
429 setenv ("FONTCONFIG_PATH", resources_path().string().c_str(), 1);
433 dcp::init (libdcp_resources_path());
435 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
436 /* Render something to fontconfig to create its cache */
437 list<StringText> subs;
438 dcp::SubtitleString ss(
439 optional<string>(), false, false, false, dcp::Colour(), 42, 1, dcp::Time(), dcp::Time(), 0, dcp::HAlign::CENTER, 0, dcp::VAlign::CENTER, 0, dcp::Direction::LTR,
440 "Hello dolly", dcp::Effect::NONE, dcp::Colour(), dcp::Time(), dcp::Time(), 0
442 subs.push_back(StringText(ss, 0, {}, dcp::SubtitleStandard::SMPTE_2014));
443 render_text (subs, dcp::Size(640, 480), DCPTime(), 24);
446 Ratio::setup_ratios ();
447 PresetColourConversion::setup_colour_conversion_presets ();
448 DCPContentType::setup_dcp_content_types ();
449 Filter::setup_filters ();
450 CinemaSoundProcessor::setup_cinema_sound_processors ();
451 AudioProcessor::setup_audio_processors ();
453 curl_global_init (CURL_GLOBAL_ALL);
455 ui_thread = boost::this_thread::get_id ();
457 capture_asdcp_logs ();
460 #ifdef DCPOMATIC_WINDOWS
461 boost::filesystem::path
465 GetModuleFileName (0, buffer, 512 * sizeof(wchar_t));
466 boost::filesystem::path p (buffer);
467 p = p.parent_path ();
468 p = p.parent_path ();
475 boost::filesystem::path
478 return "DCP-o-matic 2.app/Contents/Resources";
483 dcpomatic_setup_gettext_i18n (string lang)
485 #ifdef DCPOMATIC_LINUX
489 if (!lang.empty ()) {
490 /* Override our environment language. Note that the caller must not
491 free the string passed into putenv().
493 string s = String::compose ("LANGUAGE=%1", lang);
494 putenv (strdup (s.c_str ()));
495 s = String::compose ("LANG=%1", lang);
496 putenv (strdup (s.c_str ()));
497 s = String::compose ("LC_ALL=%1", lang);
498 putenv (strdup (s.c_str ()));
501 setlocale (LC_ALL, "");
502 textdomain ("libdcpomatic2");
504 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
505 bindtextdomain ("libdcpomatic2", mo_path().string().c_str());
506 bind_textdomain_codeset ("libdcpomatic2", "UTF8");
509 #ifdef DCPOMATIC_LINUX
510 bindtextdomain ("libdcpomatic2", LINUX_LOCALE_PREFIX);
514 /** Compute a digest of the first and last `size' bytes of a set of files. */
516 digest_head_tail (vector<boost::filesystem::path> files, boost::uintmax_t size)
518 boost::scoped_array<char> buffer (new char[size]);
522 boost::uintmax_t to_do = size;
523 char* p = buffer.get ();
525 while (i < int64_t (files.size()) && to_do > 0) {
526 dcp::File f(files[i], "rb");
528 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
531 boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
532 f.checked_read(p, this_time);
538 digester.add (buffer.get(), size - to_do);
543 i = files.size() - 1;
544 while (i >= 0 && to_do > 0) {
545 dcp::File f(files[i], "rb");
547 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
550 boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
551 f.seek(-this_time, SEEK_END);
552 f.checked_read(p, this_time);
558 digester.add (buffer.get(), size - to_do);
560 return digester.get ();
565 simple_digest (vector<boost::filesystem::path> paths)
567 return digest_head_tail(paths, 1000000) + raw_convert<string>(boost::filesystem::file_size(paths.front()));
571 /** Trip an assert if the caller is not in the UI thread */
575 DCPOMATIC_ASSERT (boost::this_thread::get_id() == ui_thread);
579 audio_channel_name (int c)
581 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
583 /// TRANSLATORS: these are the names of audio channels; Lfe (sub) is the low-frequency
584 /// enhancement channel (sub-woofer).
585 string const channels[] = {
592 _("Hearing impaired"),
593 _("Visually impaired"),
596 _("Left rear surround"),
597 _("Right rear surround"),
599 _("D-BOX secondary"),
608 short_audio_channel_name (int c)
610 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
612 /// TRANSLATORS: these are short names of audio channels; Lfe is the low-frequency
613 /// enhancement channel (sub-woofer). HI is the hearing-impaired audio track and
614 /// VI is the visually-impaired audio track (audio describe). DBP is the D-BOX
615 /// primary channel and DBS is the D-BOX secondary channel.
616 string const channels[] = {
640 valid_image_file (boost::filesystem::path f)
642 if (boost::starts_with (f.leaf().string(), "._")) {
646 auto ext = f.extension().string();
647 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
649 ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" ||
650 ext == ".png" || ext == ".bmp" || ext == ".tga" || ext == ".dpx" ||
651 ext == ".j2c" || ext == ".j2k" || ext == ".jp2" || ext == ".exr" ||
652 ext == ".jpf" || ext == ".psd"
657 valid_sound_file (boost::filesystem::path f)
659 if (boost::starts_with (f.leaf().string(), "._")) {
663 auto ext = f.extension().string();
664 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
665 return (ext == ".wav" || ext == ".mp3" || ext == ".aif" || ext == ".aiff");
669 valid_j2k_file (boost::filesystem::path f)
671 auto ext = f.extension().string();
672 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
673 return (ext == ".j2k" || ext == ".j2c" || ext == ".jp2");
677 tidy_for_filename (string f)
679 boost::replace_if (f, boost::is_any_of ("\\/:"), '_');
684 fit_ratio_within (float ratio, dcp::Size full_frame)
686 if (ratio < full_frame.ratio ()) {
687 return dcp::Size (lrintf (full_frame.height * ratio), full_frame.height);
690 return dcp::Size (full_frame.width, lrintf (full_frame.width / ratio));
695 asset_filename (shared_ptr<dcp::Asset> asset, string type, int reel_index, int reel_count, optional<string> summary, string extension)
697 dcp::NameFormat::Map values;
699 values['r'] = raw_convert<string>(reel_index + 1);
700 values['n'] = raw_convert<string>(reel_count);
702 values['c'] = careful_string_filter(summary.get());
704 return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + extension);
709 video_asset_filename (shared_ptr<dcp::PictureAsset> asset, int reel_index, int reel_count, optional<string> summary)
711 return asset_filename(asset, "j2c", reel_index, reel_count, summary, ".mxf");
716 audio_asset_filename (shared_ptr<dcp::SoundAsset> asset, int reel_index, int reel_count, optional<string> summary)
718 return asset_filename(asset, "pcm", reel_index, reel_count, summary, ".mxf");
723 subtitle_asset_filename (shared_ptr<dcp::SubtitleAsset> asset, int reel_index, int reel_count, optional<string> summary, string extension)
725 return asset_filename(asset, "sub", reel_index, reel_count, summary, extension);
730 atmos_asset_filename (shared_ptr<dcp::AtmosAsset> asset, int reel_index, int reel_count, optional<string> summary)
732 return asset_filename(asset, "atmos", reel_index, reel_count, summary, ".mxf");
737 careful_string_filter (string s)
739 /* Filter out `bad' characters which `may' cause problems with some systems (either for DCP name or filename).
740 There's no apparent list of what really is allowed, so this is a guess.
741 Safety first and all that.
744 /* First transliterate using libicu to try to remove accents in a "nice" way */
745 auto transliterated = icu::UnicodeString::fromUTF8(icu::StringPiece(s));
746 auto status = U_ZERO_ERROR;
747 auto transliterator = icu::Transliterator::createInstance("NFD; [:M:] Remove; NFC", UTRANS_FORWARD, status);
748 transliterator->transliterate(transliterated);
750 /* Some things are missed by ICU's transliterator */
751 std::map<wchar_t, wchar_t> replacements = {
756 icu::UnicodeString transliterated_more;
757 for (int i = 0; i < transliterated.length(); ++i) {
758 auto replacement = replacements.find(transliterated[i]);
759 if (replacement != replacements.end()) {
760 transliterated_more += replacement->second;
762 transliterated_more += transliterated[i];
766 /* Then remove anything that's not in a very limited character set */
768 wstring const allowed = L"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_%.+";
769 for (int i = 0; i < transliterated_more.length(); ++i) {
770 wchar_t c = transliterated_more[i];
771 if (allowed.find(c) != string::npos) {
776 return boost::locale::conv::utf_to_utf<char>(out);
779 /** @param mapped List of mapped audio channels from a Film.
780 * @param channels Total number of channels in the Film.
781 * @return First: number of non-LFE soundtrack channels (L/R/C/Ls/Rs/Lc/Rc/Bsl/Bsr), second: number of LFE channels.
784 audio_channel_types (list<int> mapped, int channels)
789 for (auto i: mapped) {
791 /* This channel is mapped but is not included in the DCP */
795 switch (static_cast<dcp::Channel>(i)) {
796 case dcp::Channel::LFE:
799 case dcp::Channel::LEFT:
800 case dcp::Channel::RIGHT:
801 case dcp::Channel::CENTRE:
802 case dcp::Channel::LS:
803 case dcp::Channel::RS:
804 case dcp::Channel::BSL:
805 case dcp::Channel::BSR:
808 case dcp::Channel::HI:
809 case dcp::Channel::VI:
810 case dcp::Channel::MOTION_DATA:
811 case dcp::Channel::SYNC_SIGNAL:
812 case dcp::Channel::SIGN_LANGUAGE:
813 case dcp::Channel::CHANNEL_COUNT:
818 return make_pair (non_lfe, lfe);
821 shared_ptr<AudioBuffers>
822 remap (shared_ptr<const AudioBuffers> input, int output_channels, AudioMapping map)
824 auto mapped = make_shared<AudioBuffers>(output_channels, input->frames());
825 mapped->make_silent ();
827 int to_do = min (map.input_channels(), input->channels());
829 for (int i = 0; i < to_do; ++i) {
830 for (int j = 0; j < mapped->channels(); ++j) {
831 if (map.get(i, j) > 0) {
832 mapped->accumulate_channel(
846 increment_eyes (Eyes e)
848 if (e == Eyes::LEFT) {
857 utf8_strlen (string s)
859 size_t const len = s.length ();
861 for (size_t i = 0; i < len; ++i) {
862 unsigned char c = s[i];
863 if ((c & 0xe0) == 0xc0) {
865 } else if ((c & 0xf0) == 0xe0) {
867 } else if ((c & 0xf8) == 0xf0) {
876 /** @param size Size of picture that the subtitle will be overlaid onto */
878 emit_subtitle_image (ContentTimePeriod period, dcp::SubtitleImage sub, dcp::Size size, shared_ptr<TextDecoder> decoder)
880 /* XXX: this is rather inefficient; decoding the image just to get its size */
881 FFmpegImageProxy proxy (sub.png_image());
882 auto image = proxy.image(Image::Alignment::PADDED).image;
883 /* set up rect with height and width */
884 dcpomatic::Rect<double> rect(0, 0, image->size().width / double(size.width), image->size().height / double(size.height));
886 /* add in position */
888 switch (sub.h_align()) {
889 case dcp::HAlign::LEFT:
890 rect.x += sub.h_position();
892 case dcp::HAlign::CENTER:
893 rect.x += 0.5 + sub.h_position() - rect.width / 2;
895 case dcp::HAlign::RIGHT:
896 rect.x += 1 - sub.h_position() - rect.width;
900 switch (sub.v_align()) {
901 case dcp::VAlign::TOP:
902 rect.y += sub.v_position();
904 case dcp::VAlign::CENTER:
905 rect.y += 0.5 + sub.v_position() - rect.height / 2;
907 case dcp::VAlign::BOTTOM:
908 rect.y += 1 - sub.v_position() - rect.height;
912 decoder->emit_bitmap (period, image, rect);
916 /** XXX: could use mmap? */
918 copy_in_bits (boost::filesystem::path from, boost::filesystem::path to, std::function<void (float)> progress)
920 dcp::File f(from, "rb");
922 throw OpenFileError (from, errno, OpenFileError::READ);
924 dcp::File t(to, "wb");
926 throw OpenFileError (to, errno, OpenFileError::WRITE);
929 /* on the order of a second's worth of copying */
930 boost::uintmax_t const chunk = 20 * 1024 * 1024;
932 std::vector<uint8_t> buffer(chunk);
934 boost::uintmax_t const total = boost::filesystem::file_size (from);
935 boost::uintmax_t remaining = total;
938 boost::uintmax_t this_time = min (chunk, remaining);
939 size_t N = f.read(buffer.data(), 1, chunk);
941 throw ReadFileError (from, errno);
944 N = t.write(buffer.data(), 1, this_time);
946 throw WriteFileError (to, errno);
949 progress (1 - float(remaining) / total);
950 remaining -= this_time;
956 scale_for_display (dcp::Size s, dcp::Size display_container, dcp::Size film_container, PixelQuanta quanta)
958 /* Now scale it down if the display container is smaller than the film container */
959 if (display_container != film_container) {
960 float const scale = min (
961 float (display_container.width) / film_container.width,
962 float (display_container.height) / film_container.height
965 s.width = lrintf (s.width * scale);
966 s.height = lrintf (s.height * scale);
967 s = quanta.round (s);
975 decrypt_kdm_with_helpful_error (dcp::EncryptedKDM kdm)
978 return dcp::DecryptedKDM (kdm, Config::instance()->decryption_chain()->key().get());
979 } catch (dcp::KDMDecryptionError& e) {
980 /* Try to flesh out the error a bit */
981 auto const kdm_subject_name = kdm.recipient_x509_subject_name();
982 bool on_chain = false;
983 auto dc = Config::instance()->decryption_chain();
984 for (auto i: dc->root_to_leaf()) {
985 if (i.subject() == kdm_subject_name) {
990 throw KDMError (_("This KDM was not made for DCP-o-matic's decryption certificate."), e.what());
991 } else if (kdm_subject_name != dc->leaf().subject()) {
992 throw KDMError (_("This KDM was made for DCP-o-matic but not for its leaf certificate."), e.what());
1000 boost::filesystem::path
1001 default_font_file ()
1003 boost::filesystem::path liberation_normal;
1005 liberation_normal = resources_path() / "LiberationSans-Regular.ttf";
1006 if (!boost::filesystem::exists (liberation_normal)) {
1007 /* Hack for unit tests */
1008 liberation_normal = resources_path() / "fonts" / "LiberationSans-Regular.ttf";
1010 } catch (boost::filesystem::filesystem_error& e) {
1014 if (!boost::filesystem::exists(liberation_normal)) {
1015 liberation_normal = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf";
1017 if (!boost::filesystem::exists(liberation_normal)) {
1018 liberation_normal = "/usr/share/fonts/liberation-sans/LiberationSans-Regular.ttf";
1021 return liberation_normal;
1025 /* Set to 1 to print the IDs of some of our threads to stdout on creation */
1026 #define DCPOMATIC_DEBUG_THREADS 0
1028 #if DCPOMATIC_DEBUG_THREADS
1030 start_of_thread (string name)
1032 std::cout << "THREAD:" << name << ":" << std::hex << pthread_self() << "\n";
1036 start_of_thread (string)
1044 error_details(boost::system::error_code ec)
1046 return String::compose("%1:%2:%3", ec.category().name(), ec.value(), ec.message());
1051 contains_assetmap(boost::filesystem::path dir)
1053 return boost::filesystem::is_regular_file(dir / "ASSETMAP") || boost::filesystem::is_regular_file(dir / "ASSETMAP.xml");