X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Futil.cc;h=b5265519413976328254749d63cb5236caa200cd;hb=6e5c998593842ff76f5d0ae5cab0d03cbe11b607;hp=595c7e76eb38355bf014c5a05647fea714b8a9a7;hpb=196de029044f4dbac5f74f68e08a89f778c3a236;p=dcpomatic.git diff --git a/src/lib/util.cc b/src/lib/util.cc index 595c7e76e..b52655194 100644 --- a/src/lib/util.cc +++ b/src/lib/util.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2012-2016 Carl Hetherington + Copyright (C) 2012-2019 Carl Hetherington This file is part of DCP-o-matic. @@ -35,8 +35,15 @@ #include "rect.h" #include "digester.h" #include "audio_processor.h" +#include "crypto.h" #include "compose.hpp" #include "audio_buffers.h" +#include "string_text.h" +#include "font.h" +#include "render_text.h" +#include "ffmpeg_image_proxy.h" +#include "image.h" +#include "text_decoder.h" #include #include #include @@ -93,6 +100,7 @@ using boost::thread; using boost::optional; using boost::lexical_cast; using boost::bad_lexical_cast; +using boost::scoped_array; using dcp::Size; using dcp::raw_convert; using dcp::locale_convert; @@ -356,9 +364,30 @@ dcpomatic_setup () set_terminate (terminate); +#ifdef DCPOMATIC_WINDOWS + putenv ("PANGOCAIRO_BACKEND=fontconfig"); + putenv (String::compose("FONTCONFIG_PATH=%1", shared_path().string()).c_str()); +#endif + +#ifdef DCPOMATIC_OSX + setenv ("PANGOCAIRO_BACKEND", "fontconfig", 1); + setenv ("FONTCONFIG_PATH", shared_path().string().c_str(), 1); +#endif + Pango::init (); dcp::init (); +#ifdef DCPOMATIC_WINDOWS + /* Render something to fontconfig to create its cache */ + list subs; + dcp::SubtitleString ss( + optional(), false, false, false, dcp::Colour(), 42, 1, dcp::Time(), dcp::Time(), 0, dcp::HALIGN_CENTER, 0, dcp::VALIGN_CENTER, dcp::DIRECTION_LTR, + "Hello dolly", dcp::NONE, dcp::Colour(), dcp::Time(), dcp::Time() + ); + subs.push_back (StringText(ss, 0)); + render_text (subs, list >(), dcp::Size(640, 480), DCPTime(), 24); +#endif + Ratio::setup_ratios (); PresetColourConversion::setup_colour_conversion_presets (); VideoContentScale::setup_scales (); @@ -700,7 +729,7 @@ relaxed_string_to_float (string s) try { boost::algorithm::replace_all (s, ",", "."); return lexical_cast (s); - } catch (bad_lexical_cast) { + } catch (bad_lexical_cast &) { boost::algorithm::replace_all (s, ".", ","); return lexical_cast (s); } @@ -812,3 +841,189 @@ checked_fread (void* ptr, size_t size, FILE* stream, boost::filesystem::path pat } } } + +size_t +utf8_strlen (string s) +{ + size_t const len = s.length (); + int N = 0; + for (size_t i = 0; i < len; ++i) { + unsigned char c = s[i]; + if ((c & 0xe0) == 0xc0) { + ++i; + } else if ((c & 0xf0) == 0xe0) { + i += 2; + } else if ((c & 0xf8) == 0xf0) { + i += 3; + } + ++N; + } + return N; +} + +string +day_of_week_to_string (boost::gregorian::greg_weekday d) +{ + switch (d.as_enum()) { + case boost::date_time::Sunday: + return _("Sunday"); + case boost::date_time::Monday: + return _("Monday"); + case boost::date_time::Tuesday: + return _("Tuesday"); + case boost::date_time::Wednesday: + return _("Wednesday"); + case boost::date_time::Thursday: + return _("Thursday"); + case boost::date_time::Friday: + return _("Friday"); + case boost::date_time::Saturday: + return _("Saturday"); + } + + return d.as_long_string (); +} + +/** @param size Size of picture that the subtitle will be overlaid onto */ +void +emit_subtitle_image (ContentTimePeriod period, dcp::SubtitleImage sub, dcp::Size size, shared_ptr decoder) +{ + /* XXX: this is rather inefficient; decoding the image just to get its size */ + FFmpegImageProxy proxy (sub.png_image()); + shared_ptr image = proxy.image().first; + /* set up rect with height and width */ + dcpomatic::Rect rect(0, 0, image->size().width / double(size.width), image->size().height / double(size.height)); + + /* add in position */ + + switch (sub.h_align()) { + case dcp::HALIGN_LEFT: + rect.x += sub.h_position(); + break; + case dcp::HALIGN_CENTER: + rect.x += 0.5 + sub.h_position() - rect.width / 2; + break; + case dcp::HALIGN_RIGHT: + rect.x += 1 - sub.h_position() - rect.width; + break; + } + + switch (sub.v_align()) { + case dcp::VALIGN_TOP: + rect.y += sub.v_position(); + break; + case dcp::VALIGN_CENTER: + rect.y += 0.5 + sub.v_position() - rect.height / 2; + break; + case dcp::VALIGN_BOTTOM: + rect.y += 1 - sub.v_position() - rect.height; + break; + } + + decoder->emit_bitmap (period, image, rect); +} + +#ifdef DCPOMATIC_VARIANT_SWAROOP + +/* Make up a key from the machine UUID */ +dcp::Data +key_from_uuid () +{ + dcp::Data key (dcpomatic::crypto_key_length()); + memset (key.data().get(), 0, key.size()); + string const magic = command_and_read ("dcpomatic2_uuid"); + strncpy ((char *) key.data().get(), magic.c_str(), dcpomatic::crypto_key_length()); + return key; +} + +/* swaroop chain file format: + * + * 0 [int16_t] IV length + * 2 [int16_t] cert #1 length, or 0 for none + * 4 [int16_t] cert #2 length, or 0 for none + * 6 [int16_t] cert #3 length, or 0 for none + * 8 [int16_t] cert #4 length, or 0 for none + * 10 [int16_t] cert #5 length, or 0 for none + * 12 [int16_t] cert #6 length, or 0 for none + * 14 [int16_t] cert #7 length, or 0 for none + * 16 [int16_t] cert #8 length, or 0 for none + * 16 [int16_t] private key length + * 20 IV + * cert #1 + * cert #2 + * cert #3 + * cert #4 + * cert #5 + * cert #6 + * cert #7 + * cert #8 + * private key + */ + +struct __attribute__ ((packed)) Header_ { + int16_t iv_length; + int16_t cert_length[8]; + int16_t private_key_length; +}; + +typedef struct Header_ Header; + +shared_ptr +read_swaroop_chain (boost::filesystem::path path) +{ + dcp::Data data (path); + Header* header = (Header *) data.data().get(); + uint8_t* p = data.data().get() + sizeof(Header); + + dcp::Data iv (p, header->iv_length); + p += iv.size(); + + shared_ptr cc (new dcp::CertificateChain()); + for (int i = 0; i < 8; ++i) { + if (header->cert_length[i] == 0) { + break; + } + dcp::Data c(p, header->cert_length[i]); + p += c.size(); + cc->add (dcp::Certificate(dcpomatic::decrypt(c, key_from_uuid(), iv))); + } + + dcp::Data k (p, header->private_key_length); + cc->set_key (dcpomatic::decrypt(k, key_from_uuid(), iv)); + return cc; +} + +void +write_swaroop_chain (shared_ptr chain, boost::filesystem::path output) +{ + scoped_array buffer (new uint8_t[65536]); + Header* header = (Header *) buffer.get(); + memset (header, 0, sizeof(Header)); + uint8_t* p = buffer.get() + sizeof(Header); + + dcp::Data iv = dcpomatic::random_iv (); + header->iv_length = iv.size (); + memcpy (p, iv.data().get(), iv.size()); + p += iv.size(); + + int N = 0; + BOOST_FOREACH (dcp::Certificate i, chain->root_to_leaf()) { + dcp::Data e = dcpomatic::encrypt (i.certificate(true), key_from_uuid(), iv); + memcpy (p, e.data().get(), e.size()); + p += e.size(); + DCPOMATIC_ASSERT (N < 8); + header->cert_length[N] = e.size (); + ++N; + } + + dcp::Data k = dcpomatic::encrypt (chain->key().get(), key_from_uuid(), iv); + memcpy (p, k.data().get(), k.size()); + p += k.size(); + header->private_key_length = k.size (); + + FILE* f = fopen_boost (output, "wb"); + checked_fwrite (buffer.get(), p - buffer.get(), f, output); + fclose (f); +} + +#endif