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Diffstat (limited to 'third_party/harfbuzz-ng/src/hb-buffer.h')
| -rw-r--r-- | third_party/harfbuzz-ng/src/hb-buffer.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/third_party/harfbuzz-ng/src/hb-buffer.h b/third_party/harfbuzz-ng/src/hb-buffer.h new file mode 100644 index 0000000..0185415 --- /dev/null +++ b/third_party/harfbuzz-ng/src/hb-buffer.h @@ -0,0 +1,163 @@ +/* + * Copyright (C) 1998-2004 David Turner and Werner Lemberg + * Copyright (C) 2004,2007,2009 Red Hat, Inc. + * + * 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. + * + * Red Hat Author(s): Owen Taylor, Behdad Esfahbod + */ + +#ifndef HB_BUFFER_H +#define HB_BUFFER_H + +#include "hb-common.h" +#include "hb-unicode.h" +#include "hb-language.h" + +HB_BEGIN_DECLS + + +typedef struct _hb_buffer_t hb_buffer_t; + +typedef struct _hb_glyph_info_t { + hb_codepoint_t codepoint; + hb_mask_t mask; + uint32_t cluster; + hb_var_int_t var1; + hb_var_int_t var2; +} hb_glyph_info_t; + +typedef struct _hb_glyph_position_t { + hb_position_t x_advance; + hb_position_t y_advance; + hb_position_t x_offset; + hb_position_t y_offset; + hb_var_int_t var; +} hb_glyph_position_t; + + +hb_buffer_t * +hb_buffer_create (unsigned int pre_alloc_size); + +hb_buffer_t * +hb_buffer_reference (hb_buffer_t *buffer); + +unsigned int +hb_buffer_get_reference_count (hb_buffer_t *buffer); + +void +hb_buffer_destroy (hb_buffer_t *buffer); + + +void +hb_buffer_set_unicode_funcs (hb_buffer_t *buffer, + hb_unicode_funcs_t *unicode_funcs); + +hb_unicode_funcs_t * +hb_buffer_get_unicode_funcs (hb_buffer_t *buffer); + +void +hb_buffer_set_direction (hb_buffer_t *buffer, + hb_direction_t direction); + +hb_direction_t +hb_buffer_get_direction (hb_buffer_t *buffer); + +void +hb_buffer_set_script (hb_buffer_t *buffer, + hb_script_t script); + +hb_script_t +hb_buffer_get_script (hb_buffer_t *buffer); + +void +hb_buffer_set_language (hb_buffer_t *buffer, + hb_language_t language); + +hb_language_t +hb_buffer_get_language (hb_buffer_t *buffer); + + +void +hb_buffer_clear (hb_buffer_t *buffer); + +void +hb_buffer_clear_positions (hb_buffer_t *buffer); + +hb_bool_t +hb_buffer_ensure (hb_buffer_t *buffer, + unsigned int size); + +void +hb_buffer_reverse (hb_buffer_t *buffer); + +void +hb_buffer_reverse_clusters (hb_buffer_t *buffer); + + +/* Filling the buffer in */ + +void +hb_buffer_add_glyph (hb_buffer_t *buffer, + hb_codepoint_t codepoint, + hb_mask_t mask, + unsigned int cluster); + +void +hb_buffer_add_utf8 (hb_buffer_t *buffer, + const char *text, + unsigned int text_length, + unsigned int item_offset, + unsigned int item_length); + +void +hb_buffer_add_utf16 (hb_buffer_t *buffer, + const uint16_t *text, + unsigned int text_length, + unsigned int item_offset, + unsigned int item_length); + +void +hb_buffer_add_utf32 (hb_buffer_t *buffer, + const uint32_t *text, + unsigned int text_length, + unsigned int item_offset, + unsigned int item_length); + + +/* Getting glyphs out of the buffer */ + +/* Return value valid as long as buffer not modified */ +unsigned int +hb_buffer_get_length (hb_buffer_t *buffer); + +/* Return value valid as long as buffer not modified */ +hb_glyph_info_t * +hb_buffer_get_glyph_infos (hb_buffer_t *buffer); + +/* Return value valid as long as buffer not modified */ +hb_glyph_position_t * +hb_buffer_get_glyph_positions (hb_buffer_t *buffer); + + +HB_END_DECLS + +#endif /* HB_BUFFER_H */ |