hb-limits.hh (2981B)
1 /* 2 * Copyright © 2022 Behdad Esfahbod 3 * 4 * This is part of HarfBuzz, a text shaping library. 5 * 6 * Permission is hereby granted, without written agreement and without 7 * license or royalty fees, to use, copy, modify, and distribute this 8 * software and its documentation for any purpose, provided that the 9 * above copyright notice and the following two paragraphs appear in 10 * all copies of this software. 11 * 12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR 13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN 15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 16 * DAMAGE. 17 * 18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, 19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO 22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 23 */ 24 25 #ifndef HB_LIMITS_HH 26 #define HB_LIMITS_HH 27 28 #include "hb.hh" 29 30 31 #ifndef HB_BUFFER_MAX_LEN_FACTOR 32 #define HB_BUFFER_MAX_LEN_FACTOR 256 33 #endif 34 #ifndef HB_BUFFER_MAX_LEN_MIN 35 #define HB_BUFFER_MAX_LEN_MIN 65536 36 #endif 37 #ifndef HB_BUFFER_MAX_LEN_DEFAULT 38 #define HB_BUFFER_MAX_LEN_DEFAULT 0x3FFFFFFF /* Shaping more than a billion chars? Let us know! */ 39 #endif 40 41 #ifndef HB_BUFFER_MAX_OPS_FACTOR 42 #define HB_BUFFER_MAX_OPS_FACTOR 4096 43 #endif 44 #ifndef HB_BUFFER_MAX_OPS_MIN 45 #define HB_BUFFER_MAX_OPS_MIN 65536 46 #endif 47 #ifndef HB_BUFFER_MAX_OPS_DEFAULT 48 #define HB_BUFFER_MAX_OPS_DEFAULT 0x1FFFFFFF /* Shaping more than a billion operations? Let us know! */ 49 #endif 50 51 52 #ifndef HB_MAX_NESTING_LEVEL 53 #define HB_MAX_NESTING_LEVEL 64 54 #endif 55 56 57 #ifndef HB_MAX_CONTEXT_LENGTH 58 #define HB_MAX_CONTEXT_LENGTH 64 59 #endif 60 61 #ifndef HB_CLOSURE_MAX_STAGES 62 /* 63 * The maximum number of times a lookup can be applied during shaping. 64 * Used to limit the number of iterations of the closure algorithm. 65 * This must be larger than the number of times add_gsub_pause() is 66 * called in a collect_features call of any shaper. 67 */ 68 #define HB_CLOSURE_MAX_STAGES 12 69 #endif 70 71 #ifndef HB_MAX_SCRIPTS 72 #define HB_MAX_SCRIPTS 500 73 #endif 74 75 #ifndef HB_MAX_LANGSYS 76 #define HB_MAX_LANGSYS 2000 77 #endif 78 79 #ifndef HB_MAX_LANGSYS_FEATURE_COUNT 80 #define HB_MAX_LANGSYS_FEATURE_COUNT 50000 81 #endif 82 83 #ifndef HB_MAX_FEATURE_INDICES 84 #define HB_MAX_FEATURE_INDICES 1500 85 #endif 86 87 #ifndef HB_MAX_LOOKUP_VISIT_COUNT 88 #define HB_MAX_LOOKUP_VISIT_COUNT 35000 89 #endif 90 91 #ifndef HB_MAX_GRAPH_EDGE_COUNT 92 #define HB_MAX_GRAPH_EDGE_COUNT 2048 93 #endif 94 95 #ifndef HB_VAR_COMPOSITE_MAX_AXES 96 #define HB_VAR_COMPOSITE_MAX_AXES 4096 97 #endif 98 99 #ifndef HB_GLYF_MAX_POINTS 100 #define HB_GLYF_MAX_POINTS 200000 101 #endif 102 103 #ifndef HB_CFF_MAX_OPS 104 #define HB_CFF_MAX_OPS 200000 105 #endif 106 107 #ifndef HB_MAX_COMPOSITE_OPERATIONS_PER_GLYPH 108 #define HB_MAX_COMPOSITE_OPERATIONS_PER_GLYPH 64 109 #endif 110 111 112 #endif /* HB_LIMITS_HH */