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| 1 /* | |
| 2 * Copyright (C) 1998-2004 David Turner and Werner Lemberg | |
| 3 * Copyright (C) 2006 Behdad Esfahbod | |
| 4 * | |
| 5 * This is part of HarfBuzz, an OpenType Layout engine library. | |
| 6 * | |
| 7 * Permission is hereby granted, without written agreement and without | |
| 8 * license or royalty fees, to use, copy, modify, and distribute this | |
| 9 * software and its documentation for any purpose, provided that the | |
| 10 * above copyright notice and the following two paragraphs appear in | |
| 11 * all copies of this software. | |
| 12 * | |
| 13 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR | |
| 14 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES | |
| 15 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN | |
| 16 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH | |
| 17 * DAMAGE. | |
| 18 * | |
| 19 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, | |
| 20 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 21 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS | |
| 22 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO | |
| 23 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. | |
| 24 */ | |
| 25 | |
| 26 #ifndef HARFBUZZ_IMPL_H | |
| 27 #define HARFBUZZ_IMPL_H | |
| 28 | |
| 29 #include "harfbuzz-global.h" | |
| 30 | |
| 31 #include <stdlib.h> | |
| 32 | |
| 33 HB_BEGIN_HEADER | |
| 34 | |
| 35 #ifndef HB_INTERNAL | |
| 36 # define HB_INTERNAL | |
| 37 #endif | |
| 38 | |
| 39 #ifndef NULL | |
| 40 # define NULL ((void *)0) | |
| 41 #endif | |
| 42 | |
| 43 #ifndef FALSE | |
| 44 # define FALSE 0 | |
| 45 #endif | |
| 46 | |
| 47 #ifndef TRUE | |
| 48 # define TRUE 1 | |
| 49 #endif | |
| 50 | |
| 51 #ifndef TTAG_GDEF | |
| 52 # define TTAG_GDEF HB_MAKE_TAG( 'G', 'D', 'E', 'F' ) | |
| 53 #endif | |
| 54 #ifndef TTAG_GPOS | |
| 55 # define TTAG_GPOS HB_MAKE_TAG( 'G', 'P', 'O', 'S' ) | |
| 56 #endif | |
| 57 #ifndef TTAG_GSUB | |
| 58 # define TTAG_GSUB HB_MAKE_TAG( 'G', 'S', 'U', 'B' ) | |
| 59 #endif | |
| 60 | |
| 61 #ifndef HB_UNUSED | |
| 62 # define HB_UNUSED(arg) ((arg) = (arg)) | |
| 63 #endif | |
| 64 | |
| 65 #define HB_LIKELY(cond) (cond) | |
| 66 #define HB_UNLIKELY(cond) (cond) | |
| 67 | |
| 68 #define ARRAY_LEN(Array) ((int)(sizeof (Array) / sizeof (Array)[0])) | |
| 69 | |
| 70 | |
| 71 | |
| 72 #define HB_IsHighSurrogate(ucs) \ | |
| 73 (((ucs) & 0xfc00) == 0xd800) | |
| 74 | |
| 75 #define HB_IsLowSurrogate(ucs) \ | |
| 76 (((ucs) & 0xfc00) == 0xdc00) | |
| 77 | |
| 78 #define HB_SurrogateToUcs4(high, low) \ | |
| 79 (((HB_UChar32)(high))<<10) + (low) - 0x35fdc00; | |
| 80 | |
| 81 | |
| 82 | |
| 83 | |
| 84 | |
| 85 #define ALLOC(_ptr,_size) \ | |
| 86 ( (_ptr) = _hb_alloc( _size, &error ), error != 0 ) | |
| 87 | |
| 88 #define REALLOC(_ptr,_newsz) \ | |
| 89 ( (_ptr) = _hb_realloc( (_ptr), (_newsz), &error ), error != 0 ) | |
| 90 | |
| 91 #define FREE(_ptr) \ | |
| 92 do { \ | |
| 93 if ( (_ptr) ) \ | |
| 94 { \ | |
| 95 _hb_free( _ptr ); \ | |
| 96 _ptr = NULL; \ | |
| 97 } \ | |
| 98 } while (0) | |
| 99 | |
| 100 #define ALLOC_ARRAY(_ptr,_count,_type) \ | |
| 101 ALLOC(_ptr,(_count)*sizeof(_type)) | |
| 102 | |
| 103 #define REALLOC_ARRAY(_ptr,_newcnt,_type) \ | |
| 104 REALLOC(_ptr,(_newcnt)*sizeof(_type)) | |
| 105 | |
| 106 #define MEM_Copy(dest,source,count) memcpy( (char*)(dest), (const char*)(sour
ce), (size_t)(count) ) | |
| 107 | |
| 108 #define ERR(err) _hb_err (err) | |
| 109 | |
| 110 | |
| 111 HB_INTERNAL HB_Pointer | |
| 112 _hb_alloc( size_t size, | |
| 113 HB_Error *perror_ ); | |
| 114 | |
| 115 HB_INTERNAL HB_Pointer | |
| 116 _hb_realloc( HB_Pointer block, | |
| 117 size_t new_size, | |
| 118 HB_Error *perror_ ); | |
| 119 | |
| 120 HB_INTERNAL void | |
| 121 _hb_free( HB_Pointer block ); | |
| 122 | |
| 123 | |
| 124 /* helper func to set a breakpoint on */ | |
| 125 HB_INTERNAL HB_Error | |
| 126 _hb_err (HB_Error code); | |
| 127 | |
| 128 | |
| 129 HB_END_HEADER | |
| 130 | |
| 131 #endif /* HARFBUZZ_IMPL_H */ | |
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