/* * Copyright (C) 1998-2004 David Turner and Werner Lemberg * Copyright (C) 2004,2007 Red Hat, Inc. * * This is part of HarfBuzz, an OpenType Layout engine 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 HARFBUZZ_BUFFER_H #define HARFBUZZ_BUFFER_H #include "hb-common.h" HB_BEGIN_DECLS(); typedef struct HB_GlyphItemRec_ { hb_codepoint_t gindex; unsigned int properties; unsigned int cluster; unsigned short component; unsigned short ligID; unsigned short gproperty; } HB_GlyphItemRec, *HB_GlyphItem; typedef struct HB_PositionRec_ { hb_position_t x_pos; hb_position_t y_pos; hb_position_t x_advance; hb_position_t y_advance; unsigned short back; /* number of glyphs to go back for drawing current glyph */ hb_bool_t new_advance; /* if set, the advance width values are absolute, i.e., they won't be added to the original glyph's value but rather replace them. */ short cursive_chain; /* character to which this connects, may be positive or negative; used only internally */ } HB_PositionRec, *HB_Position; typedef struct _hb_buffer_t { unsigned int allocated; unsigned int in_length; unsigned int out_length; unsigned int in_pos; unsigned int out_pos; hb_bool_t separate_out; HB_GlyphItem in_string; HB_GlyphItem out_string; HB_GlyphItem alt_string; HB_Position positions; unsigned int max_ligID; } HB_BufferRec, *HB_Buffer, hb_buffer_t; hb_buffer_t * hb_buffer_new (void); void hb_buffer_free (hb_buffer_t *buffer); void hb_buffer_clear (hb_buffer_t *buffer); void hb_buffer_add_glyph (hb_buffer_t *buffer, hb_codepoint_t glyph_index, unsigned int properties, unsigned int cluster); HB_END_DECLS(); #endif /* HARFBUZZ_BUFFER_H */