1 /**************************************************************************** 2 * 3 * fthash.h 4 * 5 * Hashing functions (specification). 6 * 7 */ 8 9 /* 10 * Copyright 2000 Computing Research Labs, New Mexico State University 11 * Copyright 2001-2015 12 * Francesco Zappa Nardelli 13 * 14 * Permission is hereby granted, free of charge, to any person obtaining a 15 * copy of this software and associated documentation files (the "Software"), 16 * to deal in the Software without restriction, including without limitation 17 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 18 * and/or sell copies of the Software, and to permit persons to whom the 19 * Software is furnished to do so, subject to the following conditions: 20 * 21 * The above copyright notice and this permission notice shall be included in 22 * all copies or substantial portions of the Software. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 26 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 27 * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY 28 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT 29 * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR 30 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. 31 */ 32 33 /************************************************************************** 34 * 35 * This file is based on code from bdf.c,v 1.22 2000/03/16 20:08:50 36 * 37 * taken from Mark Leisher's xmbdfed package 38 * 39 */ 40 41 42 #ifndef FTHASH_H_ 43 #define FTHASH_H_ 44 45 46 #include <freetype/freetype.h> 47 48 49 FT_BEGIN_HEADER 50 51 52 typedef union FT_Hashkey_ 53 { 54 FT_Int num; 55 const char* str; 56 57 } FT_Hashkey; 58 59 60 typedef struct FT_HashnodeRec_ 61 { 62 FT_Hashkey key; 63 size_t data; 64 65 } FT_HashnodeRec; 66 67 typedef struct FT_HashnodeRec_ *FT_Hashnode; 68 69 70 typedef FT_ULong 71 (*FT_Hash_LookupFunc)( FT_Hashkey* key ); 72 73 typedef FT_Bool 74 (*FT_Hash_CompareFunc)( FT_Hashkey* a, 75 FT_Hashkey* b ); 76 77 78 typedef struct FT_HashRec_ 79 { 80 FT_UInt limit; 81 FT_UInt size; 82 FT_UInt used; 83 84 FT_Hash_LookupFunc lookup; 85 FT_Hash_CompareFunc compare; 86 87 FT_Hashnode* table; 88 89 } FT_HashRec; 90 91 typedef struct FT_HashRec_ *FT_Hash; 92 93 94 FT_Error 95 ft_hash_str_init( FT_Hash hash, 96 FT_Memory memory ); 97 98 FT_Error 99 ft_hash_num_init( FT_Hash hash, 100 FT_Memory memory ); 101 102 void 103 ft_hash_str_free( FT_Hash hash, 104 FT_Memory memory ); 105 106 #define ft_hash_num_free ft_hash_str_free 107 108 FT_Error 109 ft_hash_str_insert( const char* key, 110 size_t data, 111 FT_Hash hash, 112 FT_Memory memory ); 113 114 FT_Error 115 ft_hash_num_insert( FT_Int num, 116 size_t data, 117 FT_Hash hash, 118 FT_Memory memory ); 119 120 size_t* 121 ft_hash_str_lookup( const char* key, 122 FT_Hash hash ); 123 124 size_t* 125 ft_hash_num_lookup( FT_Int num, 126 FT_Hash hash ); 127 128 129 FT_END_HEADER 130 131 132 #endif /* FTHASH_H_ */ 133 134 135 /* END */ 136