1 /* 2 * Copyright © 2018 Google, Inc. 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 * Google Author(s): Garret Rieger, Roderick Sheeter 25 */ 26 27 #ifndef HB_SUBSET_PLAN_HH 28 #define HB_SUBSET_PLAN_HH 29 30 #include "hb-private.hh" 31 32 #include "hb-subset.h" 33 34 #include "hb-object-private.hh" 35 36 struct hb_subset_plan_t { 37 hb_object_header_t header; 38 ASSERT_POD (); 39 40 hb_bool_t drop_hints; 41 42 // TODO(Q1) actual map, drop this crap 43 // Look at me ma, I'm a poor mans map codepoint : new gid 44 // codepoints is sorted and aligned with gids_to_retain. 45 46 // These first two lists provide a mapping from cp -> gid 47 // As a result it does not list the full set of glyphs to retain. 48 hb_prealloced_array_t<hb_codepoint_t> codepoints; 49 hb_prealloced_array_t<hb_codepoint_t> gids_to_retain; 50 51 // This list contains the complete set of glyphs to retain and may contain 52 // more glyphs then the lists above. 53 hb_prealloced_array_t<hb_codepoint_t> gids_to_retain_sorted; 54 55 // Plan is only good for a specific source/dest so keep them with it 56 hb_face_t *source; 57 hb_face_t *dest; 58 }; 59 60 typedef struct hb_subset_plan_t hb_subset_plan_t; 61 62 HB_INTERNAL hb_subset_plan_t * 63 hb_subset_plan_create (hb_face_t *face, 64 hb_subset_profile_t *profile, 65 hb_subset_input_t *input); 66 67 HB_INTERNAL hb_bool_t 68 hb_subset_plan_new_gid_for_old_id(hb_subset_plan_t *plan, 69 hb_codepoint_t old_gid, 70 hb_codepoint_t *new_gid /* OUT */); 71 72 HB_INTERNAL hb_bool_t 73 hb_subset_plan_new_gid_for_codepoint(hb_subset_plan_t *plan, 74 hb_codepoint_t codepont, 75 hb_codepoint_t *new_gid /* OUT */); 76 77 HB_INTERNAL hb_bool_t 78 hb_subset_plan_add_table(hb_subset_plan_t *plan, 79 hb_tag_t tag, 80 hb_blob_t *contents); 81 82 HB_INTERNAL void 83 hb_subset_plan_destroy (hb_subset_plan_t *plan); 84 85 #endif /* HB_SUBSET_PLAN_HH */ 86