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src/java.desktop/share/native/libfontmanager/harfbuzz/hb-subset-plan.hh

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  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 #include "hb-subset-private.hh"
  34 
  35 #include "hb-object-private.hh"
  36 #include "hb-map-private.hh"
  37 
  38 struct hb_subset_plan_t
  39 {
  40   hb_object_header_t header;
  41   ASSERT_POD ();
  42 
  43   hb_bool_t drop_hints;
  44   hb_bool_t drop_ot_layout;

  45 
  46   // For each cp that we'd like to retain maps to the corresponding gid.
  47   hb_set_t *unicodes;
  48 
  49   // This list contains the complete set of glyphs to retain and may contain
  50   // more glyphs then the lists above.
  51   hb_vector_t<hb_codepoint_t> glyphs;

  52 
  53   hb_map_t *codepoint_to_glyph;
  54   hb_map_t *glyph_map;
  55 
  56   // Plan is only good for a specific source/dest so keep them with it
  57   hb_face_t *source;
  58   hb_face_t *dest;
  59 
  60   inline hb_bool_t
  61   new_gid_for_codepoint (hb_codepoint_t codepoint,
  62                          hb_codepoint_t *new_gid) const
  63   {
  64     hb_codepoint_t old_gid = codepoint_to_glyph->get (codepoint);
  65     if (old_gid == HB_MAP_VALUE_INVALID)
  66       return false;
  67 
  68     return new_gid_for_old_gid (old_gid, new_gid);
  69   }
  70 
  71   inline hb_bool_t
  72   new_gid_for_old_gid (hb_codepoint_t old_gid,
  73                       hb_codepoint_t *new_gid) const
  74   {
  75     hb_codepoint_t gid = glyph_map->get (old_gid);
  76     if (gid == HB_MAP_VALUE_INVALID)
  77       return false;
  78 
  79     *new_gid = gid;
  80     return true;
  81   }
  82 
  83   inline hb_bool_t
  84   add_table (hb_tag_t tag,
  85              hb_blob_t *contents)
  86   {
  87     hb_blob_t *source_blob = source->reference_table (tag);
  88     DEBUG_MSG(SUBSET, nullptr, "add table %c%c%c%c, dest %d bytes, source %d bytes",
  89               HB_UNTAG(tag),
  90               hb_blob_get_length (contents),
  91               hb_blob_get_length (source_blob));
  92     hb_blob_destroy (source_blob);
  93     return hb_subset_face_add_table(dest, tag, contents);
  94   }
  95 };
  96 
  97 typedef struct hb_subset_plan_t hb_subset_plan_t;
  98 
  99 HB_INTERNAL hb_subset_plan_t *
 100 hb_subset_plan_create (hb_face_t           *face,
 101                        hb_subset_profile_t *profile,
 102                        hb_subset_input_t   *input);
 103 
 104 HB_INTERNAL void
 105 hb_subset_plan_destroy (hb_subset_plan_t *plan);
 106 
 107 #endif /* HB_SUBSET_PLAN_HH */


  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.hh"
  31 
  32 #include "hb-subset.h"
  33 #include "hb-subset-input.hh"
  34 
  35 #include "hb-map.hh"

  36 
  37 struct hb_subset_plan_t
  38 {
  39   hb_object_header_t header;

  40 
  41   bool drop_hints : 1;
  42   bool drop_layout : 1;
  43   bool desubroutinize : 1;
  44 
  45   // For each cp that we'd like to retain maps to the corresponding gid.
  46   hb_set_t *unicodes;
  47 


  48   hb_vector_t<hb_codepoint_t> glyphs;
  49   hb_set_t *glyphset;
  50 
  51   hb_map_t *codepoint_to_glyph;
  52   hb_map_t *glyph_map;
  53 
  54   // Plan is only good for a specific source/dest so keep them with it
  55   hb_face_t *source;
  56   hb_face_t *dest;
  57 
  58   bool new_gid_for_codepoint (hb_codepoint_t codepoint,

  59                               hb_codepoint_t *new_gid) const
  60   {
  61     hb_codepoint_t old_gid = codepoint_to_glyph->get (codepoint);
  62     if (old_gid == HB_MAP_VALUE_INVALID)
  63       return false;
  64 
  65     return new_gid_for_old_gid (old_gid, new_gid);
  66   }
  67 
  68   bool new_gid_for_old_gid (hb_codepoint_t old_gid,

  69                             hb_codepoint_t *new_gid) const
  70   {
  71     hb_codepoint_t gid = glyph_map->get (old_gid);
  72     if (gid == HB_MAP_VALUE_INVALID)
  73       return false;
  74 
  75     *new_gid = gid;
  76     return true;
  77   }
  78 
  79   bool
  80   add_table (hb_tag_t tag,
  81              hb_blob_t *contents)
  82   {
  83     hb_blob_t *source_blob = source->reference_table (tag);
  84     DEBUG_MSG(SUBSET, nullptr, "add table %c%c%c%c, dest %d bytes, source %d bytes",
  85               HB_UNTAG(tag),
  86               hb_blob_get_length (contents),
  87               hb_blob_get_length (source_blob));
  88     hb_blob_destroy (source_blob);
  89     return hb_face_builder_add_table (dest, tag, contents);
  90   }
  91 };
  92 
  93 typedef struct hb_subset_plan_t hb_subset_plan_t;
  94 
  95 HB_INTERNAL hb_subset_plan_t *
  96 hb_subset_plan_create (hb_face_t           *face,

  97                        hb_subset_input_t   *input);
  98 
  99 HB_INTERNAL void
 100 hb_subset_plan_destroy (hb_subset_plan_t *plan);
 101 
 102 #endif /* HB_SUBSET_PLAN_HH */
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