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b512ce3ec7
Add 'mini' HarfBuzz declarations to make FreeType independent on HarfBuzz header files. The files get activated in a follow-up commit. * src/autofit/ft-hb-decls.h, src/autofit/ft-hb-types.h: New files, holding verbatim (or slightly massaged) entries from public HarfBuzz header files. * src/autofit/hb-script: New file. A verbatim copy of a public HarfBuzz header file.
211 lines
5.5 KiB
C
211 lines
5.5 KiB
C
/*
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* Copyright © 2009, 2023 Red Hat, Inc.
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* Copyright © 2015 Google, Inc.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Red Hat Author(s): Behdad Esfahbod, Matthias Clasen
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* Google Author(s): Behdad Esfahbod
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*/
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/* All HarfBuzz function declarations used by FreeType, taken */
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/* from various public HarfBuzz header files. The wrapper macro */
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/* `HB_EXTERN` is defined in `ft-hb.h`. */
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/* hb-blob.h */
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HB_EXTERN(hb_blob_t *,
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hb_blob_create,(const char *data,
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unsigned int length,
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hb_memory_mode_t mode,
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void *user_data,
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hb_destroy_func_t destroy))
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HB_EXTERN(void,
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hb_blob_destroy,(hb_blob_t *blob))
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/* hb-buffer.h */
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HB_EXTERN(void,
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hb_buffer_add_utf8,(hb_buffer_t *buffer,
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const char *text,
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int text_length,
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unsigned int item_offset,
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int item_length))
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HB_EXTERN(void,
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hb_buffer_clear_contents,(hb_buffer_t *buffer))
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HB_EXTERN(hb_buffer_t *,
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hb_buffer_create,(void))
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HB_EXTERN(void,
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hb_buffer_destroy,(hb_buffer_t *buffer))
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HB_EXTERN(hb_glyph_info_t *,
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hb_buffer_get_glyph_infos,(hb_buffer_t *buffer,
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unsigned int *length))
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HB_EXTERN(hb_glyph_position_t *,
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hb_buffer_get_glyph_positions,(hb_buffer_t *buffer,
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unsigned int *length))
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HB_EXTERN(unsigned int,
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hb_buffer_get_length,(const hb_buffer_t *buffer))
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HB_EXTERN(void,
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hb_buffer_guess_segment_properties,(hb_buffer_t *buffer))
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/* hb-face.h */
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HB_EXTERN(hb_face_t *,
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hb_face_create,(hb_blob_t *blob,
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unsigned int index))
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HB_EXTERN(hb_face_t *,
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hb_face_create_for_tables,(hb_reference_table_func_t reference_table_func,
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void *user_data,
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hb_destroy_func_t destroy))
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HB_EXTERN(void,
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hb_face_destroy,(hb_face_t *face))
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HB_EXTERN(void,
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hb_face_set_index,(hb_face_t *face,
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unsigned int index))
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HB_EXTERN(void,
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hb_face_set_upem,(hb_face_t *face,
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unsigned int upem))
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/* hb-font.h */
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HB_EXTERN(hb_font_t *,
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hb_font_create,(hb_face_t *face))
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HB_EXTERN(void,
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hb_font_destroy,(hb_font_t *font))
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HB_EXTERN(hb_face_t *,
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hb_font_get_face,(hb_font_t *font))
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HB_EXTERN(void,
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hb_font_set_scale,(hb_font_t *font,
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int x_scale,
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int y_scale))
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/* hb-ot-layout.h */
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HB_EXTERN(void,
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hb_ot_layout_collect_lookups,(hb_face_t *face,
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hb_tag_t table_tag,
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const hb_tag_t *scripts,
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const hb_tag_t *languages,
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const hb_tag_t *features,
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hb_set_t *lookup_indexes /* OUT */))
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HB_EXTERN(void,
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hb_ot_layout_lookup_collect_glyphs,(hb_face_t *face,
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hb_tag_t table_tag,
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unsigned int lookup_index,
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hb_set_t *glyphs_before, /* OUT. May be NULL */
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hb_set_t *glyphs_input, /* OUT. May be NULL */
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hb_set_t *glyphs_after, /* OUT. May be NULL */
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hb_set_t *glyphs_output /* OUT. May be NULL */))
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HB_EXTERN(unsigned,
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hb_ot_layout_lookup_get_glyph_alternates,(hb_face_t *face,
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unsigned lookup_index,
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hb_codepoint_t glyph,
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unsigned start_offset,
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unsigned *alternate_count /* IN/OUT */,
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hb_codepoint_t *alternate_glyphs /* OUT */))
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HB_EXTERN(hb_bool_t,
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hb_ot_layout_lookup_would_substitute,(hb_face_t *face,
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unsigned int lookup_index,
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const hb_codepoint_t *glyphs,
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unsigned int glyphs_length,
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hb_bool_t zero_context))
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HB_EXTERN(void,
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hb_ot_tags_from_script_and_language,(hb_script_t script,
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hb_language_t language,
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unsigned int *script_count /* IN/OUT */,
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hb_tag_t *script_tags /* OUT */,
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unsigned int *language_count /* IN/OUT */,
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hb_tag_t *language_tags /* OUT */))
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/* hb-set.h */
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HB_EXTERN(void,
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hb_set_add,(hb_set_t *set,
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hb_codepoint_t codepoint))
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HB_EXTERN(void,
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hb_set_clear,(hb_set_t *set))
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HB_EXTERN(hb_set_t *,
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hb_set_create,(void))
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HB_EXTERN(void,
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hb_set_destroy,(hb_set_t *set))
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HB_EXTERN(void,
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hb_set_del,(hb_set_t *set,
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hb_codepoint_t codepoint))
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HB_EXTERN(hb_bool_t,
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hb_set_has,(const hb_set_t *set,
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hb_codepoint_t codepoint))
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HB_EXTERN(hb_bool_t,
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hb_set_is_empty,(const hb_set_t *set))
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HB_EXTERN(hb_bool_t,
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hb_set_next,(const hb_set_t *set,
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hb_codepoint_t *codepoint))
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HB_EXTERN(void,
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hb_set_subtract,(hb_set_t *set,
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const hb_set_t *other))
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/* hb-shape.h */
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HB_EXTERN(void,
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hb_shape,(hb_font_t *font,
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hb_buffer_t *buffer,
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const hb_feature_t *features,
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unsigned int num_features))
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HB_EXTERN(hb_bool_t,
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hb_version_atleast,(unsigned int major,
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unsigned int minor,
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unsigned int micro))
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/* END */
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