diff --git a/src/hb-ot-layout.cc b/src/hb-ot-layout.cc index a9436619a..db83481cf 100644 --- a/src/hb-ot-layout.cc +++ b/src/hb-ot-layout.cc @@ -70,97 +70,108 @@ _hb_ot_layout_create (hb_face_t *face) layout->morx.init (); { - /* - * The ugly business of blacklisting individual fonts' tables happen here! + /* The ugly business of blacklisting individual fonts' tables happen here! * See this thread for why we finally had to bend in and do this: * https://lists.freedesktop.org/archives/harfbuzz/2016-February/005489.html + * + * In certain versions of Times New Roman Italic and Bold Italic, + * ASCII double quotation mark U+0022 has wrong glyph class 3 (mark) + * in GDEF. Many versions of Tahoma have bad GDEF tables that + * incorrectly classify some spacing marks such as certain IPA + * symbols as glyph class 3. So do older versions of Microsoft + * Himalaya, and the version of Cantarell shipped by Ubuntu 16.04. + * + * Nuke the GDEF tables of to avoid unwanted width-zeroing. + * + * See https://bugzilla.mozilla.org/show_bug.cgi?id=1279925 + * https://bugzilla.mozilla.org/show_bug.cgi?id=1279693 + * https://bugzilla.mozilla.org/show_bug.cgi?id=1279875 */ unsigned int gdef_len = layout->gdef_blob->length; unsigned int gsub_len = layout->gsub_blob->length; unsigned int gpos_len = layout->gpos_blob->length; - if (0 +#define ENCODE(x,y,z) ((int64_t) (x) << 32 | (int64_t) (y) << 16 | (z)) + switch ENCODE(gdef_len, gsub_len, gpos_len) + { /* sha1sum:c5ee92f0bca4bfb7d06c4d03e8cf9f9cf75d2e8a Windows 7? timesi.ttf */ - || (442 == gdef_len && 42038 == gpos_len && 2874 == gsub_len) + case ENCODE (442, 2874, 42038): /* sha1sum:37fc8c16a0894ab7b749e35579856c73c840867b Windows 7? timesbi.ttf */ - || (430 == gdef_len && 40662 == gpos_len && 2874 == gsub_len) + case ENCODE (430, 2874, 40662): /* sha1sum:19fc45110ea6cd3cdd0a5faca256a3797a069a80 Windows 7 timesi.ttf */ - || (442 == gdef_len && 39116 == gpos_len && 2874 == gsub_len) + case ENCODE (442, 2874, 39116): /* sha1sum:6d2d3c9ed5b7de87bc84eae0df95ee5232ecde26 Windows 7 timesbi.ttf */ - || (430 == gdef_len && 39374 == gpos_len && 2874 == gsub_len) + case ENCODE (430, 2874, 39374): /* sha1sum:8583225a8b49667c077b3525333f84af08c6bcd8 OS X 10.11.3 Times New Roman Italic.ttf */ - || (490 == gdef_len && 41638 == gpos_len && 3046 == gsub_len) + case ENCODE (490, 3046, 41638): /* sha1sum:ec0f5a8751845355b7c3271d11f9918a966cb8c9 OS X 10.11.3 Times New Roman Bold Italic.ttf */ - || (478 == gdef_len && 41902 == gpos_len && 3046 == gsub_len) + case ENCODE (478, 3046, 41902): /* sha1sum:96eda93f7d33e79962451c6c39a6b51ee893ce8c tahoma.ttf from Windows 8 */ - || (898 == gdef_len && 46470 == gpos_len && 12554 == gsub_len) + case ENCODE (898, 12554, 46470): /* sha1sum:20928dc06014e0cd120b6fc942d0c3b1a46ac2bc tahomabd.ttf from Windows 8 */ - || (910 == gdef_len && 47732 == gpos_len && 12566 == gsub_len) + case ENCODE (910, 12566, 47732): /* sha1sum:4f95b7e4878f60fa3a39ca269618dfde9721a79e tahoma.ttf from Windows 8.1 */ - || (928 == gdef_len && 59332 == gpos_len && 23298 == gsub_len) + case ENCODE (928, 23298, 59332): /* sha1sum:6d400781948517c3c0441ba42acb309584b73033 tahomabd.ttf from Windows 8.1 */ - || (940 == gdef_len && 60732 == gpos_len && 23310 == gsub_len) + case ENCODE (940, 23310, 60732): /* tahoma.ttf v6.04 from Windows 8.1 x64, see https://bugzilla.mozilla.org/show_bug.cgi?id=1279925 */ - || (964 == gdef_len && 60072 == gpos_len && 23836 == gsub_len) + case ENCODE (964, 23836, 60072): /* tahomabd.ttf v6.04 from Windows 8.1 x64, see https://bugzilla.mozilla.org/show_bug.cgi?id=1279925 */ - || (976 == gdef_len && 61456 == gpos_len && 23832 == gsub_len) + case ENCODE (976, 23832, 61456): /* sha1sum:e55fa2dfe957a9f7ec26be516a0e30b0c925f846 tahoma.ttf from Windows 10 */ - || (994 == gdef_len && 60336 == gpos_len && 24474 == gsub_len) + case ENCODE (994, 24474, 60336): /* sha1sum:7199385abb4c2cc81c83a151a7599b6368e92343 tahomabd.ttf from Windows 10 */ - || (1006 == gdef_len && 61740 == gpos_len && 24470 == gsub_len) + case ENCODE (1006, 24470, 61740): /* tahoma.ttf v6.91 from Windows 10 x64, see https://bugzilla.mozilla.org/show_bug.cgi?id=1279925 */ - || (1006 == gdef_len && 61346 == gpos_len && 24576 == gsub_len) + case ENCODE (1006, 24576, 61346): /* tahomabd.ttf v6.91 from Windows 10 x64, see https://bugzilla.mozilla.org/show_bug.cgi?id=1279925 */ - || (1018 == gdef_len && 62828 == gpos_len && 24572 == gsub_len) + case ENCODE (1018, 24572, 62828): /* sha1sum:b9c84d820c49850d3d27ec498be93955b82772b5 tahoma.ttf from Windows 10 AU */ - || (1006 == gdef_len && 61352 == gpos_len && 24576 == gsub_len) + case ENCODE (1006, 24576, 61352): /* sha1sum:2bdfaab28174bdadd2f3d4200a30a7ae31db79d2 tahomabd.ttf from Windows 10 AU */ - || (1018 == gdef_len && 62834 == gpos_len && 24572 == gsub_len) + case ENCODE (1018, 24572, 62834): /* sha1sum:b0d36cf5a2fbe746a3dd277bffc6756a820807a7 Tahoma.ttf from Mac OS X 10.9 */ - || (832 == gdef_len && 47162 == gpos_len && 7324 == gsub_len) + case ENCODE (832, 7324, 47162): /* sha1sum:12fc4538e84d461771b30c18b5eb6bd434e30fba Tahoma Bold.ttf from Mac OS X 10.9 */ - || (844 == gdef_len && 45474 == gpos_len && 7302 == gsub_len) + case ENCODE (844, 7302, 45474): /* sha1sum:eb8afadd28e9cf963e886b23a30b44ab4fd83acc himalaya.ttf from Windows 7 */ - || (180 == gdef_len && 7254 == gpos_len && 13054 == gsub_len) + case ENCODE (180, 13054, 7254): /* sha1sum:73da7f025b238a3f737aa1fde22577a6370f77b0 himalaya.ttf from Windows 8 */ - || (192 == gdef_len && 7254 == gpos_len && 12638 == gsub_len) + case ENCODE (192, 12638, 7254): /* sha1sum:6e80fd1c0b059bbee49272401583160dc1e6a427 himalaya.ttf from Windows 8.1 */ - || (192 == gdef_len && 7254 == gpos_len && 12690 == gsub_len) + case ENCODE (192, 12690, 7254): /* 8d9267aea9cd2c852ecfb9f12a6e834bfaeafe44 cantarell-fonts-0.0.21/otf/Cantarell-Regular.otf */ /* 983988ff7b47439ab79aeaf9a45bd4a2c5b9d371 cantarell-fonts-0.0.21/otf/Cantarell-Oblique.otf */ - || (188 == gdef_len && 3852 == gpos_len && 248 == gsub_len) + case ENCODE (188, 248, 3852): /* 2c0c90c6f6087ffbfea76589c93113a9cbb0e75f cantarell-fonts-0.0.21/otf/Cantarell-Bold.otf */ /* 55461f5b853c6da88069ffcdf7f4dd3f8d7e3e6b cantarell-fonts-0.0.21/otf/Cantarell-Bold-Oblique.otf */ - || (188 == gdef_len && 3426 == gpos_len && 264 == gsub_len) + case ENCODE (188, 264, 3426): /* d125afa82a77a6475ac0e74e7c207914af84b37a padauk-2.80/Padauk.ttf RHEL 7.2 */ - || (1058 == gdef_len && 11818 == gpos_len && 47032 == gsub_len) + case ENCODE (1058, 47032, 11818): /* 0f7b80437227b90a577cc078c0216160ae61b031 padauk-2.80/Padauk-Bold.ttf RHEL 7.2*/ - || (1046 == gdef_len && 12600 == gpos_len && 47030 == gsub_len) + case ENCODE (1046, 47030, 12600): /* d3dde9aa0a6b7f8f6a89ef1002e9aaa11b882290 padauk-2.80/Padauk.ttf Ubuntu 16.04 */ - || (1058 == gdef_len && 16770 == gpos_len && 71796 == gsub_len) + case ENCODE (1058, 71796, 16770): /* 5f3c98ccccae8a953be2d122c1b3a77fd805093f padauk-2.80/Padauk-Bold.ttf Ubuntu 16.04 */ - || (1046 == gdef_len && 17862 == gpos_len && 71790 == gsub_len) + case ENCODE (1046, 71790, 17862): /* 6c93b63b64e8b2c93f5e824e78caca555dc887c7 padauk-2.80/Padauk-book.ttf */ - || (1046 == gdef_len && 17112 == gpos_len && 71788 == gsub_len) + case ENCODE (1046, 71788, 17112): /* d89b1664058359b8ec82e35d3531931125991fb9 padauk-2.80/Padauk-bookbold.ttf */ - || (1058 == gdef_len && 17514 == gpos_len && 71794 == gsub_len) + case ENCODE (1058, 71794, 17514): /* 824cfd193aaf6234b2b4dc0cf3c6ef576c0d00ef padauk-3.0/Padauk-book.ttf */ - || (1330 == gdef_len && 57938 == gpos_len && 109904 == gsub_len) + case ENCODE (1330, 109904, 57938): /* 91fcc10cf15e012d27571e075b3b4dfe31754a8a padauk-3.0/Padauk-bookbold.ttf */ - || (1330 == gdef_len && 58972 == gpos_len && 109904 == gsub_len) + case ENCODE (1330, 109904, 58972): /* sha1sum: c26e41d567ed821bed997e937bc0c41435689e85 Padauk.ttf * "Padauk Regular" "Version 2.5", see https://crbug.com/681813 */ - || (1004 == gdef_len && 14836 == gpos_len && 59092 == gsub_len) - ) - { - /* Many versions of Tahoma have bad GDEF tables that incorrectly classify some spacing marks - * such as certain IPA symbols as glyph class 3. So do older versions of Microsoft Himalaya, - * and the version of Cantarell shipped by Ubuntu 16.04. - * Nuke the GDEF tables of these fonts to avoid unwanted width-zeroing. - * See https://bugzilla.mozilla.org/show_bug.cgi?id=1279925 - * https://bugzilla.mozilla.org/show_bug.cgi?id=1279693 - * https://bugzilla.mozilla.org/show_bug.cgi?id=1279875 - */ - layout->gdef = &Null(OT::GDEF); + case ENCODE (1004, 59092, 14836): + { + layout->gdef = &Null(OT::GDEF); + break; + } +#undef ENCODE + + default: + break; } }