hb-buffer-private.h

   1 #ifndef HB_BUFFER_PRIVATE_H
   2 #define HB_BUFFER_PRIVATE_H
   3 struct hb_buffer_t {
   4         atomic_int32_t ref_cnt;
   5         hb_unicode_funcs_t *unicode;    /*Unicode functions */
   6         hb_segment_properties_t props;  /*Script, language, direction */
   7         hb_buffer_flags_t flags;        /*BOT / EOT / etc. */
   8
   9         /*Buffer contents */
  10
  11         hb_buffer_content_type_t content_type;
  12
  13         hb_bool_t in_error;     /*Allocation failed */
  14         hb_bool_t have_output;  /*Whether we have an output buffer going on */
  15         hb_bool_t have_positions;       /*Whether we have positions */
  16
  17         unsigned idx;           /*Cursor into ->info and ->pos arrays */
  18         unsigned len;           /*Length of ->info and ->pos arrays */
  19         unsigned out_len;       /*Length of ->out array if have_output */
  20
  21         unsigned allocated;     /*Length of allocated arrays */
  22         hb_glyph_info_t *info;
  23         hb_glyph_info_t *out_info;
  24         hb_glyph_position_t *pos;
  25
  26         unsigned serial;
  27
  28         /*These reflect current allocations of the bytes in glyph_info_t's var1 and
  29            var2. */
  30         uint8_t allocated_var_bytes[8];
  31         const char *allocated_var_owner[8];
  32
  33         /*Text before / after the main buffer contents.
  34            Always in Unicode, and ordered outward.
  35            Index 0 is for "pre-context", 1 for "post-context". */
  36 #define HB_BUFFER_CONTEXT_LENGTH 5
  37         hb_codepoint_t context[2][HB_BUFFER_CONTEXT_LENGTH];
  38         unsigned context_len[2];
  39 };
  40
  41 void hb_buffer_clear_positions(hb_buffer_t * buffer);
  42 #endif