kc3-lang/harfbuzz/src/hb-limits.hh

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• Author : Behdad Esfahbod
  Date : 2024-10-10 14:46:27
  Hash : ab360899
  Message : [CFF] Increase max op num limit This actually counts operands too, not just operators. In a big variable-font design-space, each blend can easily take a dozen ops or more. I was sent a font for which this limit was hit. Increase by 20x for now.

• src/hb-limits.hh

• /*
   * Copyright © 2022  Behdad Esfahbod
   *
   *  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.
   */
  
  #ifndef HB_LIMITS_HH
  #define HB_LIMITS_HH
  
  #include "hb.hh"
  
  
  #ifndef HB_BUFFER_MAX_LEN_FACTOR
  #define HB_BUFFER_MAX_LEN_FACTOR 64
  #endif
  #ifndef HB_BUFFER_MAX_LEN_MIN
  #define HB_BUFFER_MAX_LEN_MIN 16384
  #endif
  #ifndef HB_BUFFER_MAX_LEN_DEFAULT
  #define HB_BUFFER_MAX_LEN_DEFAULT 0x3FFFFFFF /* Shaping more than a billion chars? Let us know! */
  #endif
  
  #ifndef HB_BUFFER_MAX_OPS_FACTOR
  #define HB_BUFFER_MAX_OPS_FACTOR 1024
  #endif
  #ifndef HB_BUFFER_MAX_OPS_MIN
  #define HB_BUFFER_MAX_OPS_MIN 16384
  #endif
  #ifndef HB_BUFFER_MAX_OPS_DEFAULT
  #define HB_BUFFER_MAX_OPS_DEFAULT 0x1FFFFFFF /* Shaping more than a billion operations? Let us know! */
  #endif
  
  
  #ifndef HB_MAX_NESTING_LEVEL
  #define HB_MAX_NESTING_LEVEL 64
  #endif
  
  
  #ifndef HB_MAX_CONTEXT_LENGTH
  #define HB_MAX_CONTEXT_LENGTH 64
  #endif
  
  #ifndef HB_CLOSURE_MAX_STAGES
  /*
   * The maximum number of times a lookup can be applied during shaping.
   * Used to limit the number of iterations of the closure algorithm.
   * This must be larger than the number of times add_gsub_pause() is
   * called in a collect_features call of any shaper.
   */
  #define HB_CLOSURE_MAX_STAGES 12
  #endif
  
  #ifndef HB_MAX_SCRIPTS
  #define HB_MAX_SCRIPTS 500
  #endif
  
  #ifndef HB_MAX_LANGSYS
  #define HB_MAX_LANGSYS 2000
  #endif
  
  #ifndef HB_MAX_LANGSYS_FEATURE_COUNT
  #define HB_MAX_LANGSYS_FEATURE_COUNT 50000
  #endif
  
  #ifndef HB_MAX_FEATURE_INDICES
  #define HB_MAX_FEATURE_INDICES 1500
  #endif
  
  #ifndef HB_MAX_LOOKUP_VISIT_COUNT
  #define HB_MAX_LOOKUP_VISIT_COUNT 35000
  #endif
  
  #ifndef HB_MAX_GRAPH_EDGE_COUNT
  #define HB_MAX_GRAPH_EDGE_COUNT 2048
  #endif
  
  #ifndef HB_VAR_COMPOSITE_MAX_AXES
  #define HB_VAR_COMPOSITE_MAX_AXES 4096
  #endif
  
  #ifndef HB_GLYF_MAX_POINTS
  #define HB_GLYF_MAX_POINTS 200000
  #endif
  
  #ifndef HB_CFF_MAX_OPS
  #define HB_CFF_MAX_OPS 200000
  #endif
  
  #ifndef HB_MAX_COMPOSITE_OPERATIONS_PER_GLYPH
  #define HB_MAX_COMPOSITE_OPERATIONS_PER_GLYPH 64
  #endif
  
  
  #endif /* HB_LIMITS_HH */