2008-01-23 21:14:38 +00:00
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/*
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2011-04-21 21:14:28 +00:00
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* Copyright © 2007,2008,2009 Red Hat, Inc.
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2012-05-10 23:25:34 +00:00
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* Copyright © 2011,2012 Google, Inc.
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2008-01-23 21:14:38 +00:00
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*
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2010-04-22 04:11:43 +00:00
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* This is part of HarfBuzz, a text shaping library.
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2008-01-23 21:14:38 +00:00
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Red Hat Author(s): Behdad Esfahbod
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2011-04-21 21:14:28 +00:00
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* Google Author(s): Behdad Esfahbod
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2008-01-23 21:14:38 +00:00
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*/
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2018-08-26 05:36:36 +00:00
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#ifndef HB_HH
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#define HB_HH
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2006-12-28 11:42:37 +00:00
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2019-05-11 06:53:38 +00:00
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2019-01-24 15:29:09 +00:00
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#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC
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2019-05-11 06:15:58 +00:00
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#ifdef _MSC_VER
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2019-01-28 19:09:45 +00:00
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#pragma warning( disable: 4068 ) /* Unknown pragma */
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#endif
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2019-01-18 19:53:54 +00:00
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#if defined(__GNUC__) || defined(__clang__)
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2019-01-17 23:36:10 +00:00
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/* Rules:
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2019-01-18 14:49:14 +00:00
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*
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* - All pragmas are declared GCC even if they are clang ones. Otherwise GCC
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* nags, even though we instruct it to ignore -Wunknown-pragmas. ¯\_(ツ)_/¯
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*
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2019-01-17 23:36:10 +00:00
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* - Within each category, keep sorted.
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2019-01-18 14:49:14 +00:00
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*
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2019-01-18 14:28:22 +00:00
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* - Warnings whose scope can be expanded in future compiler versions shall
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* be declared as "warning". Otherwise, either ignored or error.
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2019-01-17 23:36:10 +00:00
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*/
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2019-01-18 14:46:17 +00:00
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2019-01-18 14:49:14 +00:00
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/* Setup. Don't sort order within this category. */
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2019-01-24 15:29:09 +00:00
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#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_WARNING
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic warning "-Wall"
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#pragma GCC diagnostic warning "-Wextra"
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2019-01-24 15:29:09 +00:00
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#endif
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#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_IGNORED
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic ignored "-Wpragmas"
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#pragma GCC diagnostic ignored "-Wunknown-pragmas"
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#pragma GCC diagnostic ignored "-Wunknown-warning-option"
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2019-01-24 15:29:09 +00:00
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#endif
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#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_WARNING
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2019-01-18 14:49:14 +00:00
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//#pragma GCC diagnostic warning "-Weverything"
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2019-01-24 15:29:09 +00:00
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#endif
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2019-01-18 14:46:17 +00:00
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2019-01-18 14:28:22 +00:00
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/* Error. Should never happen. */
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2019-01-24 15:29:09 +00:00
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#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_ERROR
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic error "-Wc++11-narrowing"
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#pragma GCC diagnostic error "-Wcast-align"
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2019-01-26 13:04:51 +00:00
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#pragma GCC diagnostic error "-Wcast-function-type"
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2019-01-18 17:23:02 +00:00
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#pragma GCC diagnostic error "-Wdelete-non-virtual-dtor"
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2019-06-20 02:58:24 +00:00
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#pragma GCC diagnostic error "-Wembedded-directive"
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2019-05-13 20:53:06 +00:00
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#pragma GCC diagnostic error "-Wextra-semi-stmt"
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic error "-Wformat-security"
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#pragma GCC diagnostic error "-Wimplicit-function-declaration"
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#pragma GCC diagnostic error "-Winit-self"
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2019-01-26 21:50:00 +00:00
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#pragma GCC diagnostic error "-Winjected-class-name"
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic error "-Wmissing-braces"
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#pragma GCC diagnostic error "-Wmissing-declarations"
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#pragma GCC diagnostic error "-Wmissing-prototypes"
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#pragma GCC diagnostic error "-Wnested-externs"
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#pragma GCC diagnostic error "-Wold-style-definition"
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#pragma GCC diagnostic error "-Wpointer-arith"
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#pragma GCC diagnostic error "-Wredundant-decls"
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2019-01-18 14:59:36 +00:00
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#pragma GCC diagnostic error "-Wreorder"
|
2019-01-22 11:40:18 +00:00
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#pragma GCC diagnostic error "-Wsign-compare"
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic error "-Wstrict-prototypes"
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#pragma GCC diagnostic error "-Wstring-conversion"
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#pragma GCC diagnostic error "-Wswitch-enum"
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#pragma GCC diagnostic error "-Wtautological-overlap-compare"
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#pragma GCC diagnostic error "-Wunneeded-internal-declaration"
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#pragma GCC diagnostic error "-Wunused"
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#pragma GCC diagnostic error "-Wunused-local-typedefs"
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#pragma GCC diagnostic error "-Wunused-value"
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#pragma GCC diagnostic error "-Wunused-variable"
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2019-01-22 11:00:44 +00:00
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#pragma GCC diagnostic error "-Wvla"
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic error "-Wwrite-strings"
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2019-01-24 15:29:09 +00:00
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#endif
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2019-01-18 14:46:17 +00:00
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2019-01-18 14:28:22 +00:00
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/* Warning. To be investigated if happens. */
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2019-01-24 15:29:09 +00:00
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#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_WARNING
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic warning "-Wbuiltin-macro-redefined"
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2019-05-07 07:33:32 +00:00
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#pragma GCC diagnostic warning "-Wdeprecated"
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2019-07-17 16:52:38 +00:00
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#pragma GCC diagnostic warning "-Wdeprecated-declarations"
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic warning "-Wdisabled-optimization"
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2019-06-07 17:56:24 +00:00
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#pragma GCC diagnostic warning "-Wdouble-promotion"
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic warning "-Wformat=2"
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#pragma GCC diagnostic warning "-Wignored-pragma-optimize"
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#pragma GCC diagnostic warning "-Wlogical-op"
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2019-01-18 14:53:16 +00:00
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#pragma GCC diagnostic warning "-Wmaybe-uninitialized"
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic warning "-Wmissing-format-attribute"
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#pragma GCC diagnostic warning "-Wundef"
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2020-08-09 11:40:06 +00:00
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#pragma GCC diagnostic warning "-Wunused-but-set-variable"
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2019-01-24 15:29:09 +00:00
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#endif
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2019-01-18 14:46:17 +00:00
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2019-01-18 14:28:22 +00:00
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/* Ignored currently, but should be fixed at some point. */
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2019-01-24 15:29:09 +00:00
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#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_IGNORED
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic ignored "-Wconversion" // TODO fix
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#pragma GCC diagnostic ignored "-Wformat-signedness" // TODO fix
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#pragma GCC diagnostic ignored "-Wshadow" // TODO fix
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#pragma GCC diagnostic ignored "-Wunsafe-loop-optimizations" // TODO fix
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#pragma GCC diagnostic ignored "-Wunused-parameter" // TODO fix
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2019-01-24 15:29:09 +00:00
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#endif
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2019-01-18 14:46:17 +00:00
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2019-01-18 14:28:22 +00:00
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/* Ignored intentionally. */
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2019-01-24 15:29:09 +00:00
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#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_IGNORED
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2019-01-18 14:49:14 +00:00
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#pragma GCC diagnostic ignored "-Wclass-memaccess"
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#pragma GCC diagnostic ignored "-Wformat-nonliteral"
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#pragma GCC diagnostic ignored "-Wformat-zero-length"
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#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
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#pragma GCC diagnostic ignored "-Wpacked" // Erratic impl in clang
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#pragma GCC diagnostic ignored "-Wstrict-aliasing"
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#pragma GCC diagnostic ignored "-Wtype-limits"
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2019-05-06 20:54:55 +00:00
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#pragma GCC diagnostic ignored "-Wc++11-compat" // only gcc raises it
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2019-01-24 15:29:09 +00:00
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#endif
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2019-01-18 19:53:54 +00:00
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#endif
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2019-01-17 20:08:36 +00:00
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#endif
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2019-05-11 06:53:38 +00:00
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#include "hb-config.hh"
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2009-05-21 16:46:29 +00:00
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2018-12-17 23:27:36 +00:00
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/*
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* Following added based on what AC_USE_SYSTEM_EXTENSIONS adds to
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* config.h.in. Copied here for the convenience of those embedding
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* HarfBuzz and not using our build system.
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*/
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/* Enable extensions on AIX 3, Interix. */
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#ifndef _ALL_SOURCE
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# define _ALL_SOURCE 1
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#endif
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/* Enable GNU extensions on systems that have them. */
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#ifndef _GNU_SOURCE
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# define _GNU_SOURCE 1
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#endif
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/* Enable threading extensions on Solaris. */
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#ifndef _POSIX_PTHREAD_SEMANTICS
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# define _POSIX_PTHREAD_SEMANTICS 1
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#endif
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/* Enable extensions on HP NonStop. */
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#ifndef _TANDEM_SOURCE
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# define _TANDEM_SOURCE 1
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#endif
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/* Enable general extensions on Solaris. */
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#ifndef __EXTENSIONS__
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# define __EXTENSIONS__ 1
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#endif
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2018-07-25 10:12:34 +00:00
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#if defined (_MSC_VER) && defined (HB_DLL_EXPORT)
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#define HB_EXTERN __declspec (dllexport) extern
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#endif
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2012-04-12 17:17:44 +00:00
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#include "hb.h"
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#define HB_H_IN
|
2012-04-23 17:20:52 +00:00
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#include "hb-ot.h"
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2012-04-12 17:17:44 +00:00
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#define HB_OT_H_IN
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2018-11-23 19:05:11 +00:00
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#include "hb-aat.h"
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#define HB_AAT_H_IN
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2009-08-05 02:35:36 +00:00
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2019-04-24 14:53:16 +00:00
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#include <limits.h>
|
2018-01-10 03:33:08 +00:00
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#include <math.h>
|
2020-04-18 23:02:55 +00:00
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#include <float.h>
|
2009-05-21 16:46:29 +00:00
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#include <stdlib.h>
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2011-07-28 20:48:43 +00:00
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#include <stddef.h>
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2009-07-30 19:33:57 +00:00
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#include <string.h>
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#include <assert.h>
|
2017-11-03 20:57:30 +00:00
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#include <stdio.h>
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2011-07-26 00:25:44 +00:00
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#include <stdarg.h>
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2009-05-21 16:46:29 +00:00
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2018-04-13 18:31:54 +00:00
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#if (defined(_MSC_VER) && _MSC_VER >= 1500) || defined(__MINGW32__)
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2019-06-05 19:20:03 +00:00
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#ifdef __MINGW32_VERSION
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN 1
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#endif
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#else
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2018-02-15 20:17:46 +00:00
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#include <intrin.h>
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#endif
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2019-06-05 19:20:03 +00:00
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#endif
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2010-07-23 19:11:18 +00:00
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2020-04-24 12:01:07 +00:00
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#ifdef _WIN32
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#include <windows.h>
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#include <winapifamily.h>
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#endif
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2017-10-27 01:48:33 +00:00
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#define HB_PASTE1(a,b) a##b
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#define HB_PASTE(a,b) HB_PASTE1(a,b)
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2018-07-10 11:17:27 +00:00
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2015-10-03 12:20:55 +00:00
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/* Compile-time custom allocator support. */
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2020-07-15 05:08:12 +00:00
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#if !defined(HB_CUSTOM_MALLOC) \
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&& defined(hb_malloc_impl) \
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&& defined(hb_calloc_impl) \
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&& defined(hb_realloc_impl) \
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&& defined(hb_free_impl)
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#define HB_CUSTOM_MALLOC
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#endif
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#ifdef HB_CUSTOM_MALLOC
|
2015-10-12 21:21:52 +00:00
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extern "C" void* hb_malloc_impl(size_t size);
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extern "C" void* hb_calloc_impl(size_t nmemb, size_t size);
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extern "C" void* hb_realloc_impl(void *ptr, size_t size);
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extern "C" void hb_free_impl(void *ptr);
|
2015-10-03 12:20:55 +00:00
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#define malloc hb_malloc_impl
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#define calloc hb_calloc_impl
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#define realloc hb_realloc_impl
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#define free hb_free_impl
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#endif
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2018-07-11 15:27:23 +00:00
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/*
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* Compiler attributes
|
2018-08-06 11:51:38 +00:00
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*/
|
2018-07-10 11:16:52 +00:00
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2017-06-02 17:23:10 +00:00
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#if (defined(__GNUC__) || defined(__clang__)) && defined(__OPTIMIZE__)
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#define likely(expr) (__builtin_expect (!!(expr), 1))
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#define unlikely(expr) (__builtin_expect (!!(expr), 0))
|
2014-06-03 20:59:09 +00:00
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#else
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#define likely(expr) (expr)
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#define unlikely(expr) (expr)
|
2010-04-29 05:40:26 +00:00
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|
#endif
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2016-07-11 19:57:26 +00:00
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#if !defined(__GNUC__) && !defined(__clang__)
|
2014-06-03 20:59:09 +00:00
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#undef __attribute__
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#define __attribute__(x)
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#endif
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|
2019-01-18 17:48:01 +00:00
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#if defined(__GNUC__) && (__GNUC__ >= 3)
|
2014-06-03 20:59:09 +00:00
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#define HB_PURE_FUNC __attribute__((pure))
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#define HB_CONST_FUNC __attribute__((const))
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#define HB_PRINTF_FUNC(format_idx, arg_idx) __attribute__((__format__ (__printf__, format_idx, arg_idx)))
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#else
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#define HB_PURE_FUNC
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#define HB_CONST_FUNC
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#define HB_PRINTF_FUNC(format_idx, arg_idx)
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#endif
|
2019-09-26 09:42:11 +00:00
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|
#if defined(__GNUC__) && (__GNUC__ >= 4) || (__clang__)
|
2014-06-03 20:59:09 +00:00
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|
|
#define HB_UNUSED __attribute__((unused))
|
2017-12-05 17:01:28 +00:00
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|
#elif defined(_MSC_VER) /* https://github.com/harfbuzz/harfbuzz/issues/635 */
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|
#define HB_UNUSED __pragma(warning(suppress: 4100 4101))
|
2014-06-03 20:59:09 +00:00
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|
#else
|
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|
#define HB_UNUSED
|
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|
#endif
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|
#ifndef HB_INTERNAL
|
2018-02-12 03:08:59 +00:00
|
|
|
# if !defined(HB_NO_VISIBILITY) && !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(_MSC_VER) && !defined(__SUNPRO_CC)
|
2014-06-03 20:59:09 +00:00
|
|
|
# define HB_INTERNAL __attribute__((__visibility__("hidden")))
|
2018-07-23 22:01:39 +00:00
|
|
|
# elif defined(__MINGW32__)
|
2018-07-25 10:12:34 +00:00
|
|
|
/* We use -export-symbols on mingw32, since it does not support visibility attributes. */
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|
# define HB_INTERNAL
|
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|
|
# elif defined (_MSC_VER) && defined (HB_DLL_EXPORT)
|
|
|
|
/* We do not try to export internal symbols on Visual Studio */
|
2018-07-23 22:01:39 +00:00
|
|
|
# define HB_INTERNAL
|
|
|
|
#else
|
2014-06-03 20:59:09 +00:00
|
|
|
# define HB_INTERNAL
|
2018-02-07 19:11:26 +00:00
|
|
|
# define HB_NO_VISIBILITY 1
|
2014-06-03 20:59:09 +00:00
|
|
|
# endif
|
|
|
|
#endif
|
|
|
|
|
2019-04-15 19:39:03 +00:00
|
|
|
/* https://github.com/harfbuzz/harfbuzz/issues/1651 */
|
|
|
|
#if defined(__clang__) && __clang_major__ < 10
|
|
|
|
#define static_const static
|
|
|
|
#else
|
|
|
|
#define static_const static const
|
|
|
|
#endif
|
|
|
|
|
2019-01-18 17:48:01 +00:00
|
|
|
#if defined(__GNUC__) && (__GNUC__ >= 3)
|
2014-06-03 20:59:09 +00:00
|
|
|
#define HB_FUNC __PRETTY_FUNCTION__
|
|
|
|
#elif defined(_MSC_VER)
|
|
|
|
#define HB_FUNC __FUNCSIG__
|
|
|
|
#else
|
|
|
|
#define HB_FUNC __func__
|
|
|
|
#endif
|
2009-08-06 16:32:35 +00:00
|
|
|
|
2018-06-09 23:04:28 +00:00
|
|
|
#if defined(__SUNPRO_CC) && (__SUNPRO_CC < 0x5140)
|
2018-02-09 22:04:23 +00:00
|
|
|
/* https://github.com/harfbuzz/harfbuzz/issues/630 */
|
|
|
|
#define __restrict
|
|
|
|
#endif
|
|
|
|
|
2015-10-21 13:04:28 +00:00
|
|
|
/*
|
|
|
|
* Borrowed from https://bugzilla.mozilla.org/show_bug.cgi?id=1215411
|
|
|
|
* HB_FALLTHROUGH is an annotation to suppress compiler warnings about switch
|
|
|
|
* cases that fall through without a break or return statement. HB_FALLTHROUGH
|
|
|
|
* is only needed on cases that have code:
|
|
|
|
*
|
|
|
|
* switch (foo) {
|
|
|
|
* case 1: // These cases have no code. No fallthrough annotations are needed.
|
|
|
|
* case 2:
|
|
|
|
* case 3:
|
|
|
|
* foo = 4; // This case has code, so a fallthrough annotation is needed:
|
|
|
|
* HB_FALLTHROUGH;
|
|
|
|
* default:
|
|
|
|
* return foo;
|
|
|
|
* }
|
|
|
|
*/
|
|
|
|
#if defined(__clang__) && __cplusplus >= 201103L
|
|
|
|
/* clang's fallthrough annotations are only available starting in C++11. */
|
|
|
|
# define HB_FALLTHROUGH [[clang::fallthrough]]
|
2019-01-18 17:48:01 +00:00
|
|
|
#elif defined(__GNUC__) && (__GNUC__ >= 7)
|
2018-02-06 00:51:09 +00:00
|
|
|
/* GNU fallthrough attribute is available from GCC7 */
|
|
|
|
# define HB_FALLTHROUGH __attribute__((fallthrough))
|
2015-10-21 13:04:28 +00:00
|
|
|
#elif defined(_MSC_VER)
|
|
|
|
/*
|
|
|
|
* MSVC's __fallthrough annotations are checked by /analyze (Code Analysis):
|
|
|
|
* https://msdn.microsoft.com/en-us/library/ms235402%28VS.80%29.aspx
|
|
|
|
*/
|
|
|
|
# include <sal.h>
|
|
|
|
# define HB_FALLTHROUGH __fallthrough
|
|
|
|
#else
|
|
|
|
# define HB_FALLTHROUGH /* FALLTHROUGH */
|
|
|
|
#endif
|
|
|
|
|
2020-05-07 05:29:01 +00:00
|
|
|
/* A tag to enforce use of return value for a function */
|
|
|
|
#if __cplusplus >= 201703L
|
|
|
|
# define HB_NODISCARD [[nodiscard]]
|
|
|
|
#elif defined(__GNUC__) || defined(__clang__)
|
|
|
|
# define HB_NODISCARD __attribute__((warn_unused_result))
|
|
|
|
#elif defined(_MSC_VER)
|
|
|
|
# define HB_NODISCARD _Check_return_
|
|
|
|
#else
|
|
|
|
# define HB_NODISCARD
|
|
|
|
#endif
|
|
|
|
#define hb_success_t HB_NODISCARD bool
|
|
|
|
|
2019-07-22 11:07:37 +00:00
|
|
|
/* https://github.com/harfbuzz/harfbuzz/issues/1852 */
|
|
|
|
#if defined(__clang__) && !(defined(_AIX) && (defined(__IBMCPP__) || defined(__ibmxl__)))
|
2018-10-14 22:20:50 +00:00
|
|
|
/* Disable certain sanitizer errors. */
|
|
|
|
/* https://github.com/harfbuzz/harfbuzz/issues/1247 */
|
|
|
|
#define HB_NO_SANITIZE_SIGNED_INTEGER_OVERFLOW __attribute__((no_sanitize("signed-integer-overflow")))
|
|
|
|
#else
|
|
|
|
#define HB_NO_SANITIZE_SIGNED_INTEGER_OVERFLOW
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
2018-11-13 02:05:39 +00:00
|
|
|
#ifdef _WIN32
|
2014-07-19 20:32:04 +00:00
|
|
|
/* We need Windows Vista for both Uniscribe backend and for
|
|
|
|
* MemoryBarrier. We don't support compiling on Windows XP,
|
|
|
|
* though we run on it fine. */
|
|
|
|
# if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0600
|
|
|
|
# undef _WIN32_WINNT
|
|
|
|
# endif
|
|
|
|
# ifndef _WIN32_WINNT
|
2020-04-24 12:01:07 +00:00
|
|
|
# if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
|
2018-09-23 08:08:30 +00:00
|
|
|
# define _WIN32_WINNT 0x0600
|
|
|
|
# endif
|
2014-07-19 20:32:04 +00:00
|
|
|
# endif
|
2014-08-15 18:28:04 +00:00
|
|
|
# ifndef WIN32_LEAN_AND_MEAN
|
|
|
|
# define WIN32_LEAN_AND_MEAN 1
|
|
|
|
# endif
|
|
|
|
# ifndef STRICT
|
|
|
|
# define STRICT 1
|
|
|
|
# endif
|
2012-11-23 19:21:35 +00:00
|
|
|
|
2015-01-25 05:50:51 +00:00
|
|
|
# if defined(_WIN32_WCE)
|
|
|
|
/* Some things not defined on Windows CE. */
|
2016-04-26 08:02:26 +00:00
|
|
|
# define vsnprintf _vsnprintf
|
2019-05-02 19:03:15 +00:00
|
|
|
# ifndef HB_NO_GETENV
|
|
|
|
# define HB_NO_GETENV
|
|
|
|
# endif
|
2015-04-10 13:18:01 +00:00
|
|
|
# if _WIN32_WCE < 0x800
|
2019-06-10 11:18:28 +00:00
|
|
|
# define HB_NO_SETLOCALE
|
2019-09-16 09:20:11 +00:00
|
|
|
# define HB_NO_ERRNO
|
2015-04-10 13:18:01 +00:00
|
|
|
# endif
|
2020-04-24 12:01:07 +00:00
|
|
|
# elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
|
2019-05-02 19:03:15 +00:00
|
|
|
# ifndef HB_NO_GETENV
|
|
|
|
# define HB_NO_GETENV
|
|
|
|
# endif
|
2015-01-25 05:50:51 +00:00
|
|
|
# endif
|
2015-04-01 18:05:59 +00:00
|
|
|
# if defined(_MSC_VER) && _MSC_VER < 1900
|
2015-01-25 05:50:51 +00:00
|
|
|
# define snprintf _snprintf
|
|
|
|
# endif
|
2014-08-10 22:04:50 +00:00
|
|
|
#endif
|
|
|
|
|
2019-05-02 19:03:15 +00:00
|
|
|
#ifdef HB_NO_GETENV
|
|
|
|
#define getenv(Name) nullptr
|
|
|
|
#endif
|
|
|
|
|
2019-10-29 00:02:40 +00:00
|
|
|
#ifndef HB_NO_ERRNO
|
|
|
|
# include <errno.h>
|
2019-09-16 09:20:11 +00:00
|
|
|
#else
|
2019-10-29 00:06:53 +00:00
|
|
|
static int HB_UNUSED _hb_errno = 0;
|
2019-10-29 00:02:40 +00:00
|
|
|
# undef errno
|
|
|
|
# define errno _hb_errno
|
2019-09-16 09:20:11 +00:00
|
|
|
#endif
|
|
|
|
|
2018-11-21 17:32:48 +00:00
|
|
|
#if defined(HAVE_ATEXIT) && !defined(HB_USE_ATEXIT)
|
2014-08-06 17:34:49 +00:00
|
|
|
/* atexit() is only safe to be called from shared libraries on certain
|
|
|
|
* platforms. Whitelist.
|
|
|
|
* https://bugs.freedesktop.org/show_bug.cgi?id=82246 */
|
|
|
|
# if defined(__linux) && defined(__GLIBC_PREREQ)
|
|
|
|
# if __GLIBC_PREREQ(2,3)
|
|
|
|
/* From atexit() manpage, it's safe with glibc 2.2.3 on Linux. */
|
|
|
|
# define HB_USE_ATEXIT 1
|
|
|
|
# endif
|
|
|
|
# elif defined(_MSC_VER) || defined(__MINGW32__)
|
|
|
|
/* For MSVC:
|
2018-04-12 09:10:45 +00:00
|
|
|
* https://msdn.microsoft.com/en-us/library/tze57ck3.aspx
|
|
|
|
* https://msdn.microsoft.com/en-us/library/zk17ww08.aspx
|
2014-08-06 17:34:49 +00:00
|
|
|
* mingw32 headers say atexit is safe to use in shared libraries.
|
|
|
|
*/
|
|
|
|
# define HB_USE_ATEXIT 1
|
2018-04-12 09:47:03 +00:00
|
|
|
# elif defined(__ANDROID__)
|
|
|
|
/* This is available since Android NKD r8 or r8b:
|
|
|
|
* https://issuetracker.google.com/code/p/android/issues/detail?id=6455
|
2014-08-06 17:34:49 +00:00
|
|
|
*/
|
|
|
|
# define HB_USE_ATEXIT 1
|
2018-02-03 18:26:57 +00:00
|
|
|
# elif defined(__APPLE__)
|
|
|
|
/* For macOS and related platforms, the atexit man page indicates
|
|
|
|
* that it will be invoked when the library is unloaded, not only
|
|
|
|
* at application exit.
|
|
|
|
*/
|
|
|
|
# define HB_USE_ATEXIT 1
|
2014-08-06 17:34:49 +00:00
|
|
|
# endif
|
|
|
|
#endif
|
2018-03-26 17:44:54 +00:00
|
|
|
#ifdef HB_NO_ATEXIT
|
|
|
|
# undef HB_USE_ATEXIT
|
|
|
|
#endif
|
2018-11-21 17:32:48 +00:00
|
|
|
#ifndef HB_USE_ATEXIT
|
|
|
|
# define HB_USE_ATEXIT 0
|
|
|
|
#endif
|
2012-11-23 19:21:35 +00:00
|
|
|
|
2009-08-01 23:30:31 +00:00
|
|
|
#define HB_STMT_START do
|
|
|
|
#define HB_STMT_END while (0)
|
2006-12-28 11:42:37 +00:00
|
|
|
|
2018-08-06 11:54:31 +00:00
|
|
|
/* Static-assert as expression. */
|
2017-10-15 09:24:35 +00:00
|
|
|
template <unsigned int cond> class hb_assert_constant_t;
|
|
|
|
template <> class hb_assert_constant_t<1> {};
|
2015-10-26 21:05:05 +00:00
|
|
|
#define ASSERT_STATIC_EXPR_ZERO(_cond) (0 * (unsigned int) sizeof (hb_assert_constant_t<_cond>))
|
2011-04-21 20:34:22 +00:00
|
|
|
|
2011-04-11 15:47:14 +00:00
|
|
|
/* Lets assert int types. Saves trouble down the road. */
|
2018-09-16 17:33:48 +00:00
|
|
|
static_assert ((sizeof (int8_t) == 1), "");
|
|
|
|
static_assert ((sizeof (uint8_t) == 1), "");
|
|
|
|
static_assert ((sizeof (int16_t) == 2), "");
|
|
|
|
static_assert ((sizeof (uint16_t) == 2), "");
|
|
|
|
static_assert ((sizeof (int32_t) == 4), "");
|
|
|
|
static_assert ((sizeof (uint32_t) == 4), "");
|
|
|
|
static_assert ((sizeof (int64_t) == 8), "");
|
|
|
|
static_assert ((sizeof (uint64_t) == 8), "");
|
|
|
|
static_assert ((sizeof (hb_codepoint_t) == 4), "");
|
|
|
|
static_assert ((sizeof (hb_position_t) == 4), "");
|
|
|
|
static_assert ((sizeof (hb_mask_t) == 4), "");
|
|
|
|
static_assert ((sizeof (hb_var_int_t) == 4), "");
|
2011-04-11 15:47:14 +00:00
|
|
|
|
2019-04-11 15:16:01 +00:00
|
|
|
#define HB_DELETE_COPY_ASSIGN(TypeName) \
|
2019-04-11 15:18:04 +00:00
|
|
|
TypeName(const TypeName&) = delete; \
|
|
|
|
void operator=(const TypeName&) = delete
|
2019-04-11 15:16:01 +00:00
|
|
|
#define HB_DELETE_CREATE_COPY_ASSIGN(TypeName) \
|
2019-04-11 15:18:04 +00:00
|
|
|
TypeName() = delete; \
|
|
|
|
TypeName(const TypeName&) = delete; \
|
|
|
|
void operator=(const TypeName&) = delete
|
2018-10-29 22:16:52 +00:00
|
|
|
|
2018-07-11 15:00:59 +00:00
|
|
|
|
2018-08-06 11:32:51 +00:00
|
|
|
/* Flags */
|
2011-07-21 03:59:07 +00:00
|
|
|
|
2015-11-05 00:25:57 +00:00
|
|
|
/* Enable bitwise ops on enums marked as flags_t */
|
2015-11-05 02:46:22 +00:00
|
|
|
/* To my surprise, looks like the function resolver is happy to silently cast
|
|
|
|
* one enum to another... So this doesn't provide the type-checking that I
|
2015-11-18 02:42:13 +00:00
|
|
|
* originally had in mind... :(.
|
|
|
|
*
|
2017-11-20 19:49:22 +00:00
|
|
|
* For MSVC warnings, see: https://github.com/harfbuzz/harfbuzz/pull/163
|
2015-11-18 02:42:13 +00:00
|
|
|
*/
|
|
|
|
#ifdef _MSC_VER
|
|
|
|
# pragma warning(disable:4200)
|
|
|
|
# pragma warning(disable:4800)
|
2015-11-09 09:17:56 +00:00
|
|
|
#endif
|
2015-11-20 21:24:19 +00:00
|
|
|
#define HB_MARK_AS_FLAG_T(T) \
|
|
|
|
extern "C++" { \
|
|
|
|
static inline T operator | (T l, T r) { return T ((unsigned) l | (unsigned) r); } \
|
|
|
|
static inline T operator & (T l, T r) { return T ((unsigned) l & (unsigned) r); } \
|
|
|
|
static inline T operator ^ (T l, T r) { return T ((unsigned) l ^ (unsigned) r); } \
|
|
|
|
static inline T operator ~ (T r) { return T (~(unsigned int) r); } \
|
|
|
|
static inline T& operator |= (T &l, T r) { l = l | r; return l; } \
|
|
|
|
static inline T& operator &= (T& l, T r) { l = l & r; return l; } \
|
|
|
|
static inline T& operator ^= (T& l, T r) { l = l ^ r; return l; } \
|
2018-12-24 01:19:52 +00:00
|
|
|
} \
|
|
|
|
static_assert (true, "")
|
2015-11-05 00:25:57 +00:00
|
|
|
|
2011-07-30 18:44:30 +00:00
|
|
|
/* Useful for set-operations on small enums.
|
|
|
|
* For example, for testing "x ∈ {x1, x2, x3}" use:
|
2017-10-19 18:39:52 +00:00
|
|
|
* (FLAG_UNSAFE(x) & (FLAG(x1) | FLAG(x2) | FLAG(x3)))
|
2011-07-30 18:44:30 +00:00
|
|
|
*/
|
2018-11-23 15:45:44 +00:00
|
|
|
#define FLAG(x) (ASSERT_STATIC_EXPR_ZERO ((unsigned)(x) < 32) + (((uint32_t) 1U) << (unsigned)(x)))
|
|
|
|
#define FLAG_UNSAFE(x) ((unsigned)(x) < 32 ? (((uint32_t) 1U) << (unsigned)(x)) : 0)
|
2012-07-20 17:37:48 +00:00
|
|
|
#define FLAG_RANGE(x,y) (ASSERT_STATIC_EXPR_ZERO ((x) < (y)) + FLAG(y+1) - FLAG(x))
|
2018-11-23 15:45:44 +00:00
|
|
|
#define FLAG64(x) (ASSERT_STATIC_EXPR_ZERO ((unsigned)(x) < 64) + (((uint64_t) 1ULL) << (unsigned)(x)))
|
|
|
|
#define FLAG64_UNSAFE(x) ((unsigned)(x) < 64 ? (((uint64_t) 1ULL) << (unsigned)(x)) : 0)
|
2011-07-21 03:59:07 +00:00
|
|
|
|
2011-07-29 21:02:48 +00:00
|
|
|
|
2015-12-11 18:21:27 +00:00
|
|
|
/* Size signifying variable-sized array */
|
2019-09-06 20:55:00 +00:00
|
|
|
#ifndef HB_VAR_ARRAY
|
2019-09-08 19:08:02 +00:00
|
|
|
#define HB_VAR_ARRAY 1
|
2019-09-06 20:55:00 +00:00
|
|
|
#endif
|
2013-02-12 20:26:45 +00:00
|
|
|
|
2020-06-28 05:23:59 +00:00
|
|
|
static inline float
|
|
|
|
_hb_roundf (float x) { return floorf (x + .5f); }
|
2019-09-03 00:32:06 +00:00
|
|
|
#define roundf(x) _hb_roundf(x)
|
|
|
|
|
2019-07-16 17:57:01 +00:00
|
|
|
/* Endian swap, used in Windows related backends */
|
|
|
|
static inline uint16_t hb_uint16_swap (const uint16_t v)
|
|
|
|
{ return (v >> 8) | (v << 8); }
|
|
|
|
static inline uint32_t hb_uint32_swap (const uint32_t v)
|
|
|
|
{ return (hb_uint16_swap (v) << 16) | hb_uint16_swap (v >> 16); }
|
2017-10-30 17:42:28 +00:00
|
|
|
|
2019-04-01 04:34:19 +00:00
|
|
|
/*
|
|
|
|
* Big-endian integers. Here because fundamental.
|
|
|
|
*/
|
|
|
|
|
|
|
|
template <typename Type, int Bytes> struct BEInt;
|
|
|
|
|
|
|
|
template <typename Type>
|
|
|
|
struct BEInt<Type, 1>
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
BEInt<Type, 1>& operator = (Type V)
|
|
|
|
{
|
|
|
|
v = V;
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
operator Type () const { return v; }
|
|
|
|
private: uint8_t v;
|
|
|
|
};
|
|
|
|
template <typename Type>
|
|
|
|
struct BEInt<Type, 2>
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
BEInt<Type, 2>& operator = (Type V)
|
|
|
|
{
|
|
|
|
v[0] = (V >> 8) & 0xFF;
|
|
|
|
v[1] = (V ) & 0xFF;
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
operator Type () const
|
|
|
|
{
|
|
|
|
#if ((defined(__GNUC__) && __GNUC__ >= 5) || defined(__clang__)) && \
|
|
|
|
defined(__BYTE_ORDER) && \
|
|
|
|
(__BYTE_ORDER == __LITTLE_ENDIAN || __BYTE_ORDER == __BIG_ENDIAN)
|
|
|
|
/* Spoon-feed the compiler a big-endian integer with alignment 1.
|
|
|
|
* https://github.com/harfbuzz/harfbuzz/pull/1398 */
|
|
|
|
struct __attribute__((packed)) packed_uint16_t { uint16_t v; };
|
|
|
|
#if __BYTE_ORDER == __LITTLE_ENDIAN
|
|
|
|
return __builtin_bswap16 (((packed_uint16_t *) this)->v);
|
|
|
|
#else /* __BYTE_ORDER == __BIG_ENDIAN */
|
|
|
|
return ((packed_uint16_t *) this)->v;
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
return (v[0] << 8)
|
2019-08-24 13:27:14 +00:00
|
|
|
+ (v[1] );
|
2019-04-01 04:34:19 +00:00
|
|
|
}
|
|
|
|
private: uint8_t v[2];
|
|
|
|
};
|
|
|
|
template <typename Type>
|
|
|
|
struct BEInt<Type, 3>
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
BEInt<Type, 3>& operator = (Type V)
|
|
|
|
{
|
|
|
|
v[0] = (V >> 16) & 0xFF;
|
|
|
|
v[1] = (V >> 8) & 0xFF;
|
|
|
|
v[2] = (V ) & 0xFF;
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
operator Type () const
|
|
|
|
{
|
|
|
|
return (v[0] << 16)
|
2019-08-24 13:27:14 +00:00
|
|
|
+ (v[1] << 8)
|
|
|
|
+ (v[2] );
|
2019-04-01 04:34:19 +00:00
|
|
|
}
|
|
|
|
private: uint8_t v[3];
|
|
|
|
};
|
|
|
|
template <typename Type>
|
|
|
|
struct BEInt<Type, 4>
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
BEInt<Type, 4>& operator = (Type V)
|
|
|
|
{
|
|
|
|
v[0] = (V >> 24) & 0xFF;
|
|
|
|
v[1] = (V >> 16) & 0xFF;
|
|
|
|
v[2] = (V >> 8) & 0xFF;
|
|
|
|
v[3] = (V ) & 0xFF;
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
operator Type () const
|
|
|
|
{
|
|
|
|
return (v[0] << 24)
|
2019-08-24 13:27:14 +00:00
|
|
|
+ (v[1] << 16)
|
|
|
|
+ (v[2] << 8)
|
|
|
|
+ (v[3] );
|
2019-04-01 04:34:19 +00:00
|
|
|
}
|
|
|
|
private: uint8_t v[4];
|
|
|
|
};
|
|
|
|
|
|
|
|
|
2018-10-12 00:20:00 +00:00
|
|
|
/*
|
|
|
|
* For lack of a better place, put Zawgyi script hack here.
|
|
|
|
* https://github.com/harfbuzz/harfbuzz/issues/1162
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define HB_SCRIPT_MYANMAR_ZAWGYI ((hb_script_t) HB_TAG ('Q','a','a','g'))
|
|
|
|
|
|
|
|
|
2018-12-21 22:35:58 +00:00
|
|
|
/* Headers we include for everyone. Keep topologically sorted by dependency.
|
|
|
|
* They express dependency amongst themselves, but no other file should include
|
|
|
|
* them directly.*/
|
2018-12-27 22:23:12 +00:00
|
|
|
#include "hb-meta.hh"
|
2018-08-26 05:36:36 +00:00
|
|
|
#include "hb-mutex.hh"
|
2019-09-03 10:19:14 +00:00
|
|
|
#include "hb-number.hh"
|
2018-12-30 23:49:34 +00:00
|
|
|
#include "hb-atomic.hh" // Requires: hb-meta
|
2018-12-28 19:29:09 +00:00
|
|
|
#include "hb-null.hh" // Requires: hb-meta
|
2019-09-03 10:19:14 +00:00
|
|
|
#include "hb-algs.hh" // Requires: hb-meta hb-null hb-number
|
2019-04-16 14:45:20 +00:00
|
|
|
#include "hb-iter.hh" // Requires: hb-algs hb-meta
|
2019-01-09 17:05:01 +00:00
|
|
|
#include "hb-debug.hh" // Requires: hb-algs hb-atomic
|
|
|
|
#include "hb-array.hh" // Requires: hb-algs hb-iter hb-null
|
2018-12-21 22:35:58 +00:00
|
|
|
#include "hb-vector.hh" // Requires: hb-array hb-null
|
|
|
|
#include "hb-object.hh" // Requires: hb-atomic hb-mutex hb-vector
|
2018-07-10 11:17:27 +00:00
|
|
|
|
2018-08-26 05:36:36 +00:00
|
|
|
#endif /* HB_HH */
|