| /* |
| * Copyright © 2007,2008,2009 Red Hat, Inc. |
| * Copyright © 2011,2012 Google, Inc. |
| * |
| * This is part of HarfBuzz, a text shaping library. |
| * |
| * Permission is hereby granted, without written agreement and without |
| * license or royalty fees, to use, copy, modify, and distribute this |
| * software and its documentation for any purpose, provided that the |
| * above copyright notice and the following two paragraphs appear in |
| * all copies of this software. |
| * |
| * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
| * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
| * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
| * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
| * DAMAGE. |
| * |
| * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
| * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
| * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
| * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
| * |
| * Red Hat Author(s): Behdad Esfahbod |
| * Google Author(s): Behdad Esfahbod |
| */ |
| |
| #ifndef HB_HH |
| #define HB_HH |
| |
| |
| #ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC |
| #ifdef _MSC_VER |
| #pragma warning( disable: 4068 ) /* Unknown pragma */ |
| #endif |
| #if defined(__GNUC__) || defined(__clang__) |
| /* Rules: |
| * |
| * - All pragmas are declared GCC even if they are clang ones. Otherwise GCC |
| * nags, even though we instruct it to ignore -Wunknown-pragmas. ¯\_(ツ)_/¯ |
| * |
| * - Within each category, keep sorted. |
| * |
| * - Warnings whose scope can be expanded in future compiler versions shall |
| * be declared as "warning". Otherwise, either ignored or error. |
| */ |
| |
| /* Setup. Don't sort order within this category. */ |
| #ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_WARNING |
| #pragma GCC diagnostic warning "-Wall" |
| #pragma GCC diagnostic warning "-Wextra" |
| #endif |
| #ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_IGNORED |
| #pragma GCC diagnostic ignored "-Wpragmas" |
| #pragma GCC diagnostic ignored "-Wunknown-pragmas" |
| #pragma GCC diagnostic ignored "-Wunknown-warning-option" |
| #endif |
| #ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_WARNING |
| //#pragma GCC diagnostic warning "-Weverything" |
| #endif |
| |
| /* Error. Should never happen. */ |
| #ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_ERROR |
| #pragma GCC diagnostic error "-Wcast-align" |
| #pragma GCC diagnostic error "-Wcast-function-type" |
| #pragma GCC diagnostic error "-Wdelete-non-virtual-dtor" |
| #pragma GCC diagnostic error "-Wembedded-directive" |
| #pragma GCC diagnostic error "-Wextra-semi-stmt" |
| #pragma GCC diagnostic error "-Wformat-security" |
| #pragma GCC diagnostic error "-Wimplicit-function-declaration" |
| #pragma GCC diagnostic error "-Winit-self" |
| #pragma GCC diagnostic error "-Winjected-class-name" |
| #pragma GCC diagnostic error "-Wmissing-braces" |
| #pragma GCC diagnostic error "-Wmissing-declarations" |
| #pragma GCC diagnostic error "-Wmissing-prototypes" |
| #pragma GCC diagnostic error "-Wnarrowing" |
| #pragma GCC diagnostic error "-Wnested-externs" |
| #pragma GCC diagnostic error "-Wold-style-definition" |
| #pragma GCC diagnostic error "-Wpointer-arith" |
| #pragma GCC diagnostic error "-Wredundant-decls" |
| #pragma GCC diagnostic error "-Wreorder" |
| #pragma GCC diagnostic error "-Wsign-compare" |
| #pragma GCC diagnostic error "-Wstrict-prototypes" |
| #pragma GCC diagnostic error "-Wstring-conversion" |
| #pragma GCC diagnostic error "-Wswitch-enum" |
| #pragma GCC diagnostic error "-Wtautological-overlap-compare" |
| #pragma GCC diagnostic error "-Wunneeded-internal-declaration" |
| #pragma GCC diagnostic error "-Wunused" |
| #pragma GCC diagnostic error "-Wunused-local-typedefs" |
| #pragma GCC diagnostic error "-Wunused-value" |
| #pragma GCC diagnostic error "-Wunused-variable" |
| #pragma GCC diagnostic error "-Wvla" |
| #pragma GCC diagnostic error "-Wwrite-strings" |
| #endif |
| |
| /* Warning. To be investigated if happens. */ |
| #ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_WARNING |
| #pragma GCC diagnostic warning "-Wbuiltin-macro-redefined" |
| #pragma GCC diagnostic warning "-Wdeprecated" |
| #pragma GCC diagnostic warning "-Wdeprecated-declarations" |
| #pragma GCC diagnostic warning "-Wdisabled-optimization" |
| #pragma GCC diagnostic warning "-Wdouble-promotion" |
| #pragma GCC diagnostic warning "-Wformat=2" |
| #pragma GCC diagnostic warning "-Wignored-pragma-optimize" |
| #pragma GCC diagnostic warning "-Wlogical-op" |
| #pragma GCC diagnostic warning "-Wmaybe-uninitialized" |
| #pragma GCC diagnostic warning "-Wmissing-format-attribute" |
| #pragma GCC diagnostic warning "-Wundef" |
| #pragma GCC diagnostic warning "-Wunused-but-set-variable" |
| #endif |
| |
| /* Ignored currently, but should be fixed at some point. */ |
| #ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_IGNORED |
| #pragma GCC diagnostic ignored "-Wconversion" // TODO fix |
| #pragma GCC diagnostic ignored "-Wformat-signedness" // TODO fix |
| #pragma GCC diagnostic ignored "-Wshadow" // TODO fix |
| #pragma GCC diagnostic ignored "-Wunsafe-loop-optimizations" // TODO fix |
| #pragma GCC diagnostic ignored "-Wunused-parameter" // TODO fix |
| #if defined(__GNUC__) && !defined(__clang__) |
| #pragma GCC diagnostic ignored "-Wunused-result" // TODO fix |
| #endif |
| #endif |
| |
| /* Ignored intentionally. */ |
| #ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_IGNORED |
| #pragma GCC diagnostic ignored "-Wclass-memaccess" |
| #pragma GCC diagnostic ignored "-Wformat-nonliteral" |
| #pragma GCC diagnostic ignored "-Wformat-zero-length" |
| #pragma GCC diagnostic ignored "-Wmissing-field-initializers" |
| #pragma GCC diagnostic ignored "-Wpacked" // Erratic impl in clang |
| #pragma GCC diagnostic ignored "-Wrange-loop-analysis" // https://github.com/harfbuzz/harfbuzz/issues/2834 |
| #pragma GCC diagnostic ignored "-Wstrict-aliasing" |
| #pragma GCC diagnostic ignored "-Wtype-limits" |
| #pragma GCC diagnostic ignored "-Wc++11-compat" // only gcc raises it |
| #endif |
| |
| #endif |
| #endif |
| |
| |
| #include "hb-config.hh" |
| |
| |
| /* |
| * Following added based on what AC_USE_SYSTEM_EXTENSIONS adds to |
| * config.h.in. Copied here for the convenience of those embedding |
| * HarfBuzz and not using our build system. |
| */ |
| /* Enable extensions on AIX 3, Interix. */ |
| #ifndef _ALL_SOURCE |
| # define _ALL_SOURCE 1 |
| #endif |
| /* Enable GNU extensions on systems that have them. */ |
| #ifndef _GNU_SOURCE |
| # define _GNU_SOURCE 1 |
| #endif |
| /* Enable threading extensions on Solaris. */ |
| #ifndef _POSIX_PTHREAD_SEMANTICS |
| # define _POSIX_PTHREAD_SEMANTICS 1 |
| #endif |
| /* Enable extensions on HP NonStop. */ |
| #ifndef _TANDEM_SOURCE |
| # define _TANDEM_SOURCE 1 |
| #endif |
| /* Enable general extensions on Solaris. */ |
| #ifndef __EXTENSIONS__ |
| # define __EXTENSIONS__ 1 |
| #endif |
| |
| #if defined (_MSC_VER) && defined (HB_DLL_EXPORT) |
| #define HB_EXTERN __declspec (dllexport) extern |
| #endif |
| |
| #include "hb.h" |
| #define HB_H_IN |
| #include "hb-ot.h" |
| #define HB_OT_H_IN |
| #include "hb-aat.h" |
| #define HB_AAT_H_IN |
| |
| #include <cassert> |
| #include <cfloat> |
| #include <climits> |
| #ifdef _MSC_VER |
| # define _USE_MATH_DEFINES |
| #endif |
| #include <cmath> |
| #include <cstdarg> |
| #include <cstddef> |
| #include <cstdio> |
| #include <cstdlib> |
| #include <cstring> |
| |
| #if (defined(_MSC_VER) && _MSC_VER >= 1500) || defined(__MINGW32__) |
| #ifdef __MINGW32_VERSION |
| #ifndef WIN32_LEAN_AND_MEAN |
| #define WIN32_LEAN_AND_MEAN 1 |
| #endif |
| #else |
| #include <intrin.h> |
| #endif |
| #endif |
| |
| #ifdef _WIN32 |
| #include <windows.h> |
| #include <winapifamily.h> |
| #endif |
| |
| #define HB_PASTE1(a,b) a##b |
| #define HB_PASTE(a,b) HB_PASTE1(a,b) |
| |
| |
| /* Compile-time custom allocator support. */ |
| |
| #if !defined(HB_CUSTOM_MALLOC) \ |
| && defined(hb_malloc_impl) \ |
| && defined(hb_calloc_impl) \ |
| && defined(hb_realloc_impl) \ |
| && defined(hb_free_impl) |
| #define HB_CUSTOM_MALLOC |
| #endif |
| |
| #ifdef HB_CUSTOM_MALLOC |
| extern "C" void* hb_malloc_impl(size_t size); |
| extern "C" void* hb_calloc_impl(size_t nmemb, size_t size); |
| extern "C" void* hb_realloc_impl(void *ptr, size_t size); |
| extern "C" void hb_free_impl(void *ptr); |
| #define hb_malloc hb_malloc_impl |
| #define hb_calloc hb_calloc_impl |
| #define hb_realloc hb_realloc_impl |
| #define hb_free hb_free_impl |
| #else |
| #define hb_malloc malloc |
| #define hb_calloc calloc |
| #define hb_realloc realloc |
| #define hb_free free |
| #endif |
| |
| |
| /* |
| * Compiler attributes |
| */ |
| |
| #if (defined(__GNUC__) || defined(__clang__)) && defined(__OPTIMIZE__) |
| #define likely(expr) (__builtin_expect (!!(expr), 1)) |
| #define unlikely(expr) (__builtin_expect (!!(expr), 0)) |
| #else |
| #define likely(expr) (expr) |
| #define unlikely(expr) (expr) |
| #endif |
| |
| #if !defined(__GNUC__) && !defined(__clang__) |
| #undef __attribute__ |
| #define __attribute__(x) |
| #endif |
| |
| #if defined(__GNUC__) && (__GNUC__ >= 3) |
| #define HB_PRINTF_FUNC(format_idx, arg_idx) __attribute__((__format__ (__printf__, format_idx, arg_idx))) |
| #else |
| #define HB_PRINTF_FUNC(format_idx, arg_idx) |
| #endif |
| #if defined(__GNUC__) && (__GNUC__ >= 4) || (__clang__) |
| #define HB_UNUSED __attribute__((unused)) |
| #elif defined(_MSC_VER) /* https://github.com/harfbuzz/harfbuzz/issues/635 */ |
| #define HB_UNUSED __pragma(warning(suppress: 4100 4101)) |
| #else |
| #define HB_UNUSED |
| #endif |
| |
| #ifndef HB_INTERNAL |
| # if !defined(HB_NO_VISIBILITY) && !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(_MSC_VER) && !defined(__SUNPRO_CC) |
| # define HB_INTERNAL __attribute__((__visibility__("hidden"))) |
| # elif defined(__MINGW32__) |
| /* We use -export-symbols on mingw32, since it does not support visibility attributes. */ |
| # define HB_INTERNAL |
| # elif defined (_MSC_VER) && defined (HB_DLL_EXPORT) |
| /* We do not try to export internal symbols on Visual Studio */ |
| # define HB_INTERNAL |
| #else |
| # define HB_INTERNAL |
| # define HB_NO_VISIBILITY 1 |
| # endif |
| #endif |
| |
| /* https://github.com/harfbuzz/harfbuzz/issues/1651 */ |
| #if defined(__clang__) && __clang_major__ < 10 |
| #define static_const static |
| #else |
| #define static_const static const |
| #endif |
| |
| #if defined(__GNUC__) && (__GNUC__ >= 3) |
| #define HB_FUNC __PRETTY_FUNCTION__ |
| #elif defined(_MSC_VER) |
| #define HB_FUNC __FUNCSIG__ |
| #else |
| #define HB_FUNC __func__ |
| #endif |
| |
| #if defined(__SUNPRO_CC) && (__SUNPRO_CC < 0x5140) |
| /* https://github.com/harfbuzz/harfbuzz/issues/630 */ |
| #define __restrict |
| #endif |
| |
| /* |
| * 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]] |
| #elif defined(__GNUC__) && (__GNUC__ >= 7) |
| /* GNU fallthrough attribute is available from GCC7 */ |
| # define HB_FALLTHROUGH __attribute__((fallthrough)) |
| #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 |
| |
| /* 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 |
| |
| /* https://github.com/harfbuzz/harfbuzz/issues/1852 */ |
| #if defined(__clang__) && !(defined(_AIX) && (defined(__IBMCPP__) || defined(__ibmxl__))) |
| /* 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 |
| |
| |
| #ifdef _WIN32 |
| /* 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 |
| # if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) |
| # define _WIN32_WINNT 0x0600 |
| # endif |
| # endif |
| # ifndef WIN32_LEAN_AND_MEAN |
| # define WIN32_LEAN_AND_MEAN 1 |
| # endif |
| # ifndef STRICT |
| # define STRICT 1 |
| # endif |
| |
| # if defined(_WIN32_WCE) |
| /* Some things not defined on Windows CE. */ |
| # define vsnprintf _vsnprintf |
| # ifndef HB_NO_GETENV |
| # define HB_NO_GETENV |
| # endif |
| # if _WIN32_WCE < 0x800 |
| # define HB_NO_SETLOCALE |
| # define HB_NO_ERRNO |
| # endif |
| # elif !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) |
| # ifndef HB_NO_GETENV |
| # define HB_NO_GETENV |
| # endif |
| # endif |
| # if defined(_MSC_VER) && _MSC_VER < 1900 |
| # define snprintf _snprintf |
| # endif |
| #endif |
| |
| #ifdef HB_NO_GETENV |
| #define getenv(Name) nullptr |
| #endif |
| |
| #ifndef HB_NO_ERRNO |
| # include <cerrno> |
| #else |
| static int HB_UNUSED _hb_errno = 0; |
| # undef errno |
| # define errno _hb_errno |
| #endif |
| |
| #define HB_STMT_START do |
| #define HB_STMT_END while (0) |
| |
| #if defined(HAVE_ATEXIT) && !defined(HB_USE_ATEXIT) |
| /* 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: |
| * https://msdn.microsoft.com/en-us/library/tze57ck3.aspx |
| * https://msdn.microsoft.com/en-us/library/zk17ww08.aspx |
| * mingw32 headers say atexit is safe to use in shared libraries. |
| */ |
| # define HB_USE_ATEXIT 1 |
| # elif defined(__ANDROID__) |
| /* This is available since Android NKD r8 or r8b: |
| * https://issuetracker.google.com/code/p/android/issues/detail?id=6455 |
| */ |
| # define HB_USE_ATEXIT 1 |
| # 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 |
| # endif |
| #endif /* defined(HAVE_ATEXIT) && !defined(HB_USE_ATEXIT) */ |
| #ifdef HB_NO_ATEXIT |
| # undef HB_USE_ATEXIT |
| #endif |
| #ifndef HB_USE_ATEXIT |
| # define HB_USE_ATEXIT 0 |
| #endif |
| #if !HB_USE_ATEXIT |
| # define hb_atexit(_) HB_STMT_START { if (0) (_) (); } HB_STMT_END |
| #else /* HB_USE_ATEXIT */ |
| # ifdef HAVE_ATEXIT |
| # define hb_atexit atexit |
| # else |
| template <void (*function) (void)> struct hb_atexit_t { ~hb_atexit_t () { function (); } }; |
| # define hb_atexit(f) static hb_atexit_t<f> _hb_atexit_##__LINE__; |
| # endif |
| #endif |
| |
| /* Lets assert int types. Saves trouble down the road. */ |
| 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), ""); |
| |
| |
| /* Headers we include for everyone. Keep topologically sorted by dependency. |
| * They express dependency amongst themselves, but no other file should include |
| * them directly.*/ |
| #include "hb-meta.hh" |
| #include "hb-mutex.hh" |
| #include "hb-number.hh" |
| #include "hb-atomic.hh" // Requires: hb-meta |
| #include "hb-null.hh" // Requires: hb-meta |
| #include "hb-algs.hh" // Requires: hb-meta hb-null hb-number |
| #include "hb-iter.hh" // Requires: hb-algs hb-meta |
| #include "hb-debug.hh" // Requires: hb-algs hb-atomic |
| #include "hb-array.hh" // Requires: hb-algs hb-iter hb-null |
| #include "hb-vector.hh" // Requires: hb-array hb-null |
| #include "hb-object.hh" // Requires: hb-atomic hb-mutex hb-vector |
| |
| #endif /* HB_HH */ |