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authorPeter Breitenlohner <peb@mppmu.mpg.de>2013-06-24 06:44:52 +0000
committerPeter Breitenlohner <peb@mppmu.mpg.de>2013-06-24 06:44:52 +0000
commit11eb5b823f29c3666e9f4d2cf72a2a3fee73ff9c (patch)
treecd0b46b7c263ec1dfaf29871e9425d4c974a721e /Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-buffer-private.hh
parentc1d8a05ae33d287f84ab102c1ef6635dccf33116 (diff)
harfbuzz 0.9.18
git-svn-id: svn://tug.org/texlive/trunk@30879 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-buffer-private.hh')
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diff --git a/Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-buffer-private.hh b/Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-buffer-private.hh
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--- a/Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-buffer-private.hh
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * Copyright © 1998-2004 David Turner and Werner Lemberg
- * Copyright © 2004,2007,2009,2010 Red Hat, Inc.
- * Copyright © 2011,2012 Google, 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
- * Google Author(s): Behdad Esfahbod
- */
-
-#ifndef HB_BUFFER_PRIVATE_HH
-#define HB_BUFFER_PRIVATE_HH
-
-#include "hb-private.hh"
-#include "hb-buffer.h"
-#include "hb-object-private.hh"
-#include "hb-unicode-private.hh"
-
-
-ASSERT_STATIC (sizeof (hb_glyph_info_t) == 20);
-ASSERT_STATIC (sizeof (hb_glyph_info_t) == sizeof (hb_glyph_position_t));
-
-
-/*
- * hb_buffer_t
- */
-
-struct hb_buffer_t {
- hb_object_header_t header;
- ASSERT_POD ();
-
- /* Information about how the text in the buffer should be treated */
-
- hb_unicode_funcs_t *unicode; /* Unicode functions */
- hb_segment_properties_t props; /* Script, language, direction */
- hb_buffer_flags_t flags; /* BOT / EOT / etc. */
-
- /* Buffer contents */
-
- hb_buffer_content_type_t content_type;
-
- bool in_error; /* Allocation failed */
- bool have_output; /* Whether we have an output buffer going on */
- bool have_positions; /* Whether we have positions */
-
- unsigned int idx; /* Cursor into ->info and ->pos arrays */
- unsigned int len; /* Length of ->info and ->pos arrays */
- unsigned int out_len; /* Length of ->out array if have_output */
-
- unsigned int allocated; /* Length of allocated arrays */
- hb_glyph_info_t *info;
- hb_glyph_info_t *out_info;
- hb_glyph_position_t *pos;
-
- inline hb_glyph_info_t &cur (unsigned int i = 0) { return info[idx + i]; }
- inline hb_glyph_info_t cur (unsigned int i = 0) const { return info[idx + i]; }
-
- inline hb_glyph_position_t &cur_pos (unsigned int i = 0) { return pos[idx + i]; }
- inline hb_glyph_position_t cur_pos (unsigned int i = 0) const { return pos[idx + i]; }
-
- inline hb_glyph_info_t &prev (void) { return out_info[out_len - 1]; }
- inline hb_glyph_info_t prev (void) const { return info[out_len - 1]; }
-
- unsigned int serial;
-
- /* These reflect current allocations of the bytes in glyph_info_t's var1 and var2. */
- uint8_t allocated_var_bytes[8];
- const char *allocated_var_owner[8];
-
- /* Text before / after the main buffer contents.
- * Always in Unicode, and ordered outward.
- * Index 0 is for "pre-context", 1 for "post-context". */
- static const unsigned int CONTEXT_LENGTH = 5;
- hb_codepoint_t context[2][CONTEXT_LENGTH];
- unsigned int context_len[2];
-
-
- /* Methods */
-
- HB_INTERNAL void reset (void);
- HB_INTERNAL void clear (void);
-
- inline unsigned int backtrack_len (void) const
- { return have_output? out_len : idx; }
- inline unsigned int next_serial (void) { return serial++; }
-
- HB_INTERNAL void allocate_var (unsigned int byte_i, unsigned int count, const char *owner);
- HB_INTERNAL void deallocate_var (unsigned int byte_i, unsigned int count, const char *owner);
- HB_INTERNAL void assert_var (unsigned int byte_i, unsigned int count, const char *owner);
- HB_INTERNAL void deallocate_var_all (void);
-
- HB_INTERNAL void add (hb_codepoint_t codepoint,
- unsigned int cluster);
- HB_INTERNAL void add_info (const hb_glyph_info_t &glyph_info);
-
- HB_INTERNAL void reverse_range (unsigned int start, unsigned int end);
- HB_INTERNAL void reverse (void);
- HB_INTERNAL void reverse_clusters (void);
- HB_INTERNAL void guess_segment_properties (void);
-
- HB_INTERNAL void swap_buffers (void);
- HB_INTERNAL void remove_output (void);
- HB_INTERNAL void clear_output (void);
- HB_INTERNAL void clear_positions (void);
-
- HB_INTERNAL void replace_glyphs (unsigned int num_in,
- unsigned int num_out,
- const hb_codepoint_t *glyph_data);
-
- HB_INTERNAL void replace_glyph (hb_codepoint_t glyph_index);
- /* Makes a copy of the glyph at idx to output and replace glyph_index */
- HB_INTERNAL void output_glyph (hb_codepoint_t glyph_index);
- HB_INTERNAL void output_info (const hb_glyph_info_t &glyph_info);
- /* Copies glyph at idx to output but doesn't advance idx */
- HB_INTERNAL void copy_glyph (void);
- /* Copies glyph at idx to output and advance idx.
- * If there's no output, just advance idx. */
- inline void
- next_glyph (void)
- {
- if (have_output)
- {
- if (unlikely (out_info != info || out_len != idx)) {
- if (unlikely (!make_room_for (1, 1))) return;
- out_info[out_len] = info[idx];
- }
- out_len++;
- }
-
- idx++;
- }
-
- /* Advance idx without copying to output. */
- inline void skip_glyph (void) { idx++; }
-
- inline void reset_masks (hb_mask_t mask)
- {
- for (unsigned int j = 0; j < len; j++)
- info[j].mask = mask;
- }
- inline void add_masks (hb_mask_t mask)
- {
- for (unsigned int j = 0; j < len; j++)
- info[j].mask |= mask;
- }
- HB_INTERNAL void set_masks (hb_mask_t value,
- hb_mask_t mask,
- unsigned int cluster_start,
- unsigned int cluster_end);
-
- HB_INTERNAL void merge_clusters (unsigned int start,
- unsigned int end);
- HB_INTERNAL void merge_out_clusters (unsigned int start,
- unsigned int end);
-
- /* Internal methods */
- HB_INTERNAL bool enlarge (unsigned int size);
-
- inline bool ensure (unsigned int size)
- { return likely (size < allocated) ? true : enlarge (size); }
-
- HB_INTERNAL bool make_room_for (unsigned int num_in, unsigned int num_out);
-
- HB_INTERNAL void *get_scratch_buffer (unsigned int *size);
-
- inline void clear_context (unsigned int side) { context_len[side] = 0; }
-};
-
-
-#define HB_BUFFER_XALLOCATE_VAR(b, func, var, owner) \
- b->func (offsetof (hb_glyph_info_t, var) - offsetof(hb_glyph_info_t, var1), \
- sizeof (b->info[0].var), owner)
-#define HB_BUFFER_ALLOCATE_VAR(b, var) \
- HB_BUFFER_XALLOCATE_VAR (b, allocate_var, var (), #var)
-#define HB_BUFFER_DEALLOCATE_VAR(b, var) \
- HB_BUFFER_XALLOCATE_VAR (b, deallocate_var, var (), #var)
-#define HB_BUFFER_ASSERT_VAR(b, var) \
- HB_BUFFER_XALLOCATE_VAR (b, assert_var, var (), #var)
-
-
-#endif /* HB_BUFFER_PRIVATE_HH */