241 lines
6.4 KiB
C
241 lines
6.4 KiB
C
/*
|
|
* Copyright (C) 2007,2008,2009 Red Hat, 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
|
|
*/
|
|
|
|
#ifndef HB_PRIVATE_H
|
|
#define HB_PRIVATE_H
|
|
|
|
#if HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "hb-common.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
/* We only use these two for debug output. However, the debug code is
|
|
* always seen by the compiler (and optimized out in non-debug builds.
|
|
* If including these becomes a problem, we can start thinking about
|
|
* someway around that. */
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
|
|
|
|
/* Essentials */
|
|
|
|
#ifndef NULL
|
|
# define NULL ((void *) 0)
|
|
#endif
|
|
|
|
#undef FALSE
|
|
#define FALSE 0
|
|
|
|
#undef TRUE
|
|
#define TRUE 1
|
|
|
|
|
|
/* Basics */
|
|
|
|
#undef MIN
|
|
#define MIN(a,b) ((a) < (b) ? (a) : (b))
|
|
|
|
#undef MAX
|
|
#define MAX(a,b) ((a) > (b) ? (a) : (b))
|
|
|
|
#ifndef HB_INTERNAL
|
|
# define HB_INTERNAL extern
|
|
#endif
|
|
|
|
#undef ARRAY_LENGTH
|
|
#define ARRAY_LENGTH(__array) ((signed int) (sizeof (__array) / sizeof (__array[0])))
|
|
|
|
#define HB_STMT_START do
|
|
#define HB_STMT_END while (0)
|
|
|
|
#define _ASSERT_STATIC1(_line, _cond) typedef int _static_assert_on_line_##_line##_failed[(_cond)?1:-1]
|
|
#define _ASSERT_STATIC0(_line, _cond) _ASSERT_STATIC1 (_line, (_cond))
|
|
#define ASSERT_STATIC(_cond) _ASSERT_STATIC0 (__LINE__, (_cond))
|
|
|
|
|
|
/* Misc */
|
|
|
|
|
|
#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
|
|
#define _HB_BOOLEAN_EXPR(expr) ((expr) ? 1 : 0)
|
|
#define likely(expr) (__builtin_expect (_HB_BOOLEAN_EXPR(expr), 1))
|
|
#define unlikely(expr) (__builtin_expect (_HB_BOOLEAN_EXPR(expr), 0))
|
|
#else
|
|
#define likely(expr) (expr)
|
|
#define unlikely(expr) (expr)
|
|
#endif
|
|
|
|
#ifndef __GNUC__
|
|
#undef __attribute__
|
|
#define __attribute__(x)
|
|
#endif
|
|
|
|
#if __GNUC__ >= 3
|
|
#define HB_PURE_FUNC __attribute__((pure))
|
|
#define HB_CONST_FUNC __attribute__((const))
|
|
#else
|
|
#define HB_PURE_FUNC
|
|
#define HB_CONST_FUNC
|
|
#endif
|
|
#if __GNUC__ >= 4
|
|
#define HB_UNUSED __attribute__((unused))
|
|
#else
|
|
#define HB_UNUSED
|
|
#endif
|
|
|
|
|
|
#if (defined(__WIN32__) && !defined(__WINE__)) || defined(_MSC_VER)
|
|
#define snprintf _snprintf
|
|
#endif
|
|
|
|
#ifdef _MSC_VER
|
|
#undef inline
|
|
#define inline __inline
|
|
#endif
|
|
|
|
#ifdef __STRICT_ANSI__
|
|
#undef inline
|
|
#define inline __inline__
|
|
#endif
|
|
|
|
|
|
#if __GNUC__ >= 3
|
|
#define HB_FUNC __PRETTY_FUNCTION__
|
|
#elif defined(_MSC_VER)
|
|
#define HB_FUNC __FUNCSIG__
|
|
#else
|
|
#define HB_FUNC __func__
|
|
#endif
|
|
|
|
|
|
/* Return the number of 1 bits in mask.
|
|
*
|
|
* GCC 3.4 supports a "population count" builtin, which on many targets is
|
|
* implemented with a single instruction. There is a fallback definition
|
|
* in libgcc in case a target does not have one, which should be just as
|
|
* good as the open-coded solution below, (which is "HACKMEM 169").
|
|
*/
|
|
static inline HB_CONST_FUNC unsigned int
|
|
_hb_popcount32 (uint32_t mask)
|
|
{
|
|
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
|
|
return __builtin_popcount (mask);
|
|
#else
|
|
register uint32_t y;
|
|
|
|
y = (mask >> 1) &033333333333;
|
|
y = mask - y - ((y >>1) & 033333333333);
|
|
return (((y + (y >> 3)) & 030707070707) % 077);
|
|
#endif
|
|
}
|
|
|
|
|
|
/* Multiplies a 16dot16 value by another value, then truncates the result */
|
|
#define _hb_16dot16_mul_round(A,B) (((int64_t) (A) * (B) + 0x8000) / 0x10000)
|
|
|
|
|
|
/* We need external help for these */
|
|
|
|
#ifdef HAVE_GLIB
|
|
|
|
#include <glib.h>
|
|
|
|
typedef int hb_atomic_int_t;
|
|
#define hb_atomic_int_fetch_and_add(AI, V) g_atomic_int_exchange_and_add (&(AI), V)
|
|
#define hb_atomic_int_get(AI) g_atomic_int_get (&(AI))
|
|
#define hb_atomic_int_set(AI, V) g_atomic_int_set (&(AI), V)
|
|
|
|
typedef GStaticMutex hb_mutex_t;
|
|
#define HB_MUTEX_INIT G_STATIC_MUTEX_INIT
|
|
#define hb_mutex_init(M) g_static_mutex_init (&M)
|
|
#define hb_mutex_lock(M) g_static_mutex_lock (&M)
|
|
#define hb_mutex_trylock(M) g_static_mutex_trylock (&M)
|
|
#define hb_mutex_unlock(M) g_static_mutex_unlock (&M)
|
|
|
|
#else
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma message(__LOC__"Could not find any system to define platform macros, library will NOT be thread-safe")
|
|
#else
|
|
#warning "Could not find any system to define platform macros, library will NOT be thread-safe"
|
|
#endif
|
|
|
|
typedef int hb_atomic_int_t;
|
|
#define hb_atomic_int_fetch_and_add(AI, V) ((AI) += (V), (AI) - (V))
|
|
#define hb_atomic_int_get(AI) (AI)
|
|
#define hb_atomic_int_set(AI, V) HB_STMT_START { (AI) = (V); } HB_STMT_END
|
|
|
|
typedef int hb_mutex_t;
|
|
#define HB_MUTEX_INIT 0
|
|
#define hb_mutex_init(M) HB_STMT_START { (M) = 0; } HB_STMT_END
|
|
#define hb_mutex_lock(M) HB_STMT_START { (M) = 1; } HB_STMT_END
|
|
#define hb_mutex_trylock(M) ((M) = 1, 1)
|
|
#define hb_mutex_unlock(M) HB_STMT_START { (M) = 0; } HB_STMT_END
|
|
|
|
#endif
|
|
|
|
|
|
/* Big-endian handling */
|
|
|
|
#define hb_be_uint16(v) ((uint16_t) ((((const uint8_t *)&(v))[0] << 8) + (((const uint8_t *)&(v))[1])))
|
|
|
|
#define hb_be_uint16_put(v,V) HB_STMT_START { v[0] = (V>>8); v[1] = (V); } HB_STMT_END
|
|
#define hb_be_uint16_get(v) (uint16_t) ((v[0] << 8) + v[1])
|
|
#define hb_be_uint16_cmp(a,b) (a[0] == b[0] && a[1] == b[1])
|
|
|
|
#define hb_be_uint32_put(v,V) HB_STMT_START { v[0] = (V>>24); v[1] = (V>>16); v[2] = (V>>8); v[3] = (V); } HB_STMT_END
|
|
#define hb_be_uint32_get(v) (uint32_t) ((v[0] << 24) + (v[1] << 16) + (v[2] << 8) + v[3])
|
|
#define hb_be_uint32_cmp(a,b) (a[0] == b[0] && a[1] == b[1] && a[2] == b[2] && a[3] == b[3])
|
|
|
|
|
|
/* Debug */
|
|
|
|
#ifndef HB_DEBUG
|
|
#define HB_DEBUG 0
|
|
#endif
|
|
|
|
static inline hb_bool_t /* always returns TRUE */
|
|
_hb_trace (const char *what,
|
|
const char *function,
|
|
const void *obj,
|
|
unsigned int depth,
|
|
unsigned int max_depth)
|
|
{
|
|
if (depth < max_depth)
|
|
fprintf (stderr, "%s(%p) %-*d-> %s\n", what, obj, depth, depth, function);
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
#include "hb-object-private.h"
|
|
|
|
#endif /* HB_PRIVATE_H */
|