1955 lines
52 KiB
C++
1955 lines
52 KiB
C++
/*
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* Copyright © 2020 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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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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* Google Author(s): Garret Rieger
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*/
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#include <string>
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#include "hb-repacker.hh"
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#include "hb-open-type.hh"
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#include "graph/serialize.hh"
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static void extend (const char* value,
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unsigned len,
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hb_serialize_context_t* c)
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{
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char* obj = c->allocate_size<char> (len);
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memcpy (obj, value, len);
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}
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static void start_object(const char* tag,
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unsigned len,
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hb_serialize_context_t* c)
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{
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c->push ();
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extend (tag, len, c);
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}
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static unsigned add_object(const char* tag,
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unsigned len,
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hb_serialize_context_t* c)
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{
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start_object (tag, len, c);
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return c->pop_pack (false);
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}
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static void add_offset (unsigned id,
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hb_serialize_context_t* c)
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{
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OT::Offset16* offset = c->start_embed<OT::Offset16> ();
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c->extend_min (offset);
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c->add_link (*offset, id);
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}
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static void add_24_offset (unsigned id,
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hb_serialize_context_t* c)
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{
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OT::Offset24* offset = c->start_embed<OT::Offset24> ();
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c->extend_min (offset);
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c->add_link (*offset, id);
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}
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static void add_wide_offset (unsigned id,
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hb_serialize_context_t* c)
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{
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OT::Offset32* offset = c->start_embed<OT::Offset32> ();
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c->extend_min (offset);
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c->add_link (*offset, id);
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}
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static void add_gsubgpos_header (unsigned lookup_list,
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hb_serialize_context_t* c)
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{
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char header[] = {
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0, 1, // major
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0, 0, // minor
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0, 0, // script list
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0, 0, // feature list
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};
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start_object (header, 8, c);
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add_offset (lookup_list, c);
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c->pop_pack (false);
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}
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static unsigned add_lookup_list (const unsigned* lookups,
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char count,
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hb_serialize_context_t* c)
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{
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char lookup_count[] = {0, count};
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start_object ((char *) &lookup_count, 2, c);
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for (int i = 0; i < count; i++)
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add_offset (lookups[i], c);
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return c->pop_pack (false);
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}
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static void start_lookup (int8_t type,
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int8_t num_subtables,
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hb_serialize_context_t* c)
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{
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char lookup[] = {
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0, (char)type, // type
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0, 0, // flag
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0, (char)num_subtables, // num subtables
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};
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start_object (lookup, 6, c);
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}
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static unsigned finish_lookup (hb_serialize_context_t* c)
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{
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char filter[] = {0, 0};
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extend (filter, 2, c);
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return c->pop_pack (false);
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}
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static unsigned add_extension (unsigned child,
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uint8_t type,
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hb_serialize_context_t* c)
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{
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char ext[] = {
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0, 1,
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0, (char) type,
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};
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start_object (ext, 4, c);
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add_wide_offset (child, c);
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return c->pop_pack (false);
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}
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// Adds coverage table fro [start, end]
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static unsigned add_coverage (unsigned start, unsigned end,
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hb_serialize_context_t* c)
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{
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if (end - start == 1)
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{
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uint8_t coverage[] = {
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0, 1, // format
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0, 2, // count
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(uint8_t) ((start >> 8) & 0xFF),
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(uint8_t) (start & 0xFF), // glyph[0]
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(uint8_t) ((end >> 8) & 0xFF),
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(uint8_t) (end & 0xFF), // glyph[1]
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};
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return add_object ((char*) coverage, 8, c);
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}
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uint8_t coverage[] = {
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0, 2, // format
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0, 1, // range count
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(uint8_t) ((start >> 8) & 0xFF),
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(uint8_t) (start & 0xFF), // start
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(uint8_t) ((end >> 8) & 0xFF),
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(uint8_t) (end & 0xFF), // end
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0, 0,
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};
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return add_object ((char*) coverage, 10, c);
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}
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// Adds a class that maps glyphs from [start_glyph, end_glyph)
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// to classes 1...n
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static unsigned add_class_def (uint16_t start_glyph,
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uint16_t end_glyph,
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hb_serialize_context_t* c)
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{
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unsigned count = end_glyph - start_glyph;
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uint8_t header[] = {
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0, 1, // format
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(uint8_t) ((start_glyph >> 8) & 0xFF),
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(uint8_t) (start_glyph & 0xFF), // start_glyph
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(uint8_t) ((count >> 8) & 0xFF),
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(uint8_t) (count & 0xFF), // count
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};
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start_object ((char*) header, 6, c);
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for (uint16_t i = 1; i <= count; i++)
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{
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uint8_t class_value[] = {
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(uint8_t) ((i >> 8) & 0xFF),
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(uint8_t) (i & 0xFF), // count
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};
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extend ((char*) class_value, 2, c);
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}
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return c->pop_pack (false);
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}
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static unsigned add_pair_pos_1 (unsigned* pair_sets,
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char count,
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unsigned coverage,
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hb_serialize_context_t* c)
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{
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char format[] = {
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0, 1
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};
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start_object (format, 2, c);
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add_offset (coverage, c);
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char value_format[] = {
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0, 0,
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0, 0,
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0, count,
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};
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extend (value_format, 6, c);
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for (char i = 0; i < count; i++)
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add_offset (pair_sets[(unsigned) i], c);
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return c->pop_pack (false);
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}
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static unsigned add_pair_pos_2 (unsigned starting_class,
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unsigned coverage,
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unsigned class_def_1, uint16_t class_def_1_count,
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unsigned class_def_2, uint16_t class_def_2_count,
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unsigned* device_tables,
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hb_serialize_context_t* c)
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{
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uint8_t format[] = {
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0, 2
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};
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start_object ((char*) format, 2, c);
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add_offset (coverage, c);
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unsigned num_values = 4;
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uint8_t format1 = 0x01 | 0x02 | 0x08;
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uint8_t format2 = 0x04;
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if (device_tables) {
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format2 |= 0x20;
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num_values += 1;
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}
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uint8_t value_format[] = {
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0, format1,
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0, format2,
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};
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extend ((char*) value_format, 4, c);
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add_offset (class_def_1, c);
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add_offset (class_def_2, c);
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uint8_t class_counts[] = {
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(uint8_t) ((class_def_1_count >> 8) & 0xFF),
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(uint8_t) (class_def_1_count & 0xFF),
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(uint8_t) ((class_def_2_count >> 8) & 0xFF),
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(uint8_t) (class_def_2_count & 0xFF),
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};
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extend ((char*) class_counts, 4, c);
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unsigned num_bytes_per_record = class_def_2_count * num_values * 2;
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uint8_t* record = (uint8_t*) calloc (1, num_bytes_per_record);
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int device_index = 0;
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for (uint16_t i = 0; i < class_def_1_count; i++)
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{
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for (uint16_t j = 0; j < class_def_2_count; j++)
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{
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for (int k = 0; k < 4; k++) {
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uint8_t value[] = {
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(uint8_t) (i + starting_class),
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(uint8_t) (i + starting_class),
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};
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extend ((char*) value, 2, c);
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}
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if (device_tables) {
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add_offset (device_tables[device_index++], c);
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}
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}
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}
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free (record);
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return c->pop_pack (false);
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}
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static void run_resolve_overflow_test (const char* name,
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hb_serialize_context_t& overflowing,
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hb_serialize_context_t& expected,
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unsigned num_iterations = 0,
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bool recalculate_extensions = false,
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hb_tag_t tag = HB_TAG ('G', 'S', 'U', 'B'))
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{
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printf (">>> Testing overflowing resolution for %s\n",
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name);
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graph_t graph (overflowing.object_graph ());
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assert (overflowing.offset_overflow ());
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hb_blob_t* out = hb_resolve_overflows (overflowing.object_graph (),
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tag,
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num_iterations,
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recalculate_extensions);
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assert (out);
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hb_bytes_t result = out->as_bytes ();
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assert (!expected.offset_overflow ());
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hb_bytes_t expected_result = expected.copy_bytes ();
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if (result.length != expected_result.length)
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{
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printf("result.length (%u) != expected.length (%u).\n",
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result.length,
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expected_result.length);
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}
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assert (result.length == expected_result.length);
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bool equal = true;
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for (unsigned i = 0; i < expected_result.length; i++)
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{
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if (result[i] != expected_result[i])
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{
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equal = false;
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uint8_t a = result[i];
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uint8_t b = expected_result[i];
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printf("%08u: %x != %x\n", i, a, b);
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}
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}
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assert (equal);
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expected_result.fini ();
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hb_blob_destroy (out);
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}
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static void add_virtual_offset (unsigned id,
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hb_serialize_context_t* c)
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{
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c->add_virtual_link (id);
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}
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static void
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populate_serializer_simple (hb_serialize_context_t* c)
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{
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c->start_serialize<char> ();
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unsigned obj_1 = add_object ("ghi", 3, c);
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unsigned obj_2 = add_object ("def", 3, c);
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start_object ("abc", 3, c);
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add_offset (obj_2, c);
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add_offset (obj_1, c);
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c->pop_pack (false);
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c->end_serialize();
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}
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static void
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populate_serializer_with_overflow (hb_serialize_context_t* c)
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{
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std::string large_string(50000, 'a');
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c->start_serialize<char> ();
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unsigned obj_1 = add_object (large_string.c_str(), 10000, c);
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unsigned obj_2 = add_object (large_string.c_str(), 20000, c);
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unsigned obj_3 = add_object (large_string.c_str(), 50000, c);
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start_object ("abc", 3, c);
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add_offset (obj_3, c);
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add_offset (obj_2, c);
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add_offset (obj_1, c);
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c->pop_pack (false);
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c->end_serialize();
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}
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static void
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populate_serializer_with_priority_overflow (hb_serialize_context_t* c)
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{
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std::string large_string(50000, 'a');
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c->start_serialize<char> ();
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unsigned obj_e = add_object ("e", 1, c);
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unsigned obj_d = add_object ("d", 1, c);
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start_object (large_string.c_str (), 50000, c);
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add_offset (obj_e, c);
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unsigned obj_c = c->pop_pack (false);
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start_object (large_string.c_str (), 20000, c);
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add_offset (obj_d, c);
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unsigned obj_b = c->pop_pack (false);
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start_object ("a", 1, c);
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add_offset (obj_b, c);
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add_offset (obj_c, c);
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c->pop_pack (false);
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c->end_serialize();
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}
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static void
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populate_serializer_with_priority_overflow_expected (hb_serialize_context_t* c)
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{
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std::string large_string(50000, 'a');
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c->start_serialize<char> ();
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unsigned obj_e = add_object ("e", 1, c);
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start_object (large_string.c_str (), 50000, c);
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add_offset (obj_e, c);
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unsigned obj_c = c->pop_pack (false);
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unsigned obj_d = add_object ("d", 1, c);
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start_object (large_string.c_str (), 20000, c);
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add_offset (obj_d, c);
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unsigned obj_b = c->pop_pack (false);
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start_object ("a", 1, c);
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add_offset (obj_b, c);
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add_offset (obj_c, c);
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c->pop_pack (false);
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c->end_serialize();
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}
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static void
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populate_serializer_with_dedup_overflow (hb_serialize_context_t* c)
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{
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std::string large_string(70000, 'a');
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c->start_serialize<char> ();
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unsigned obj_1 = add_object ("def", 3, c);
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start_object (large_string.c_str(), 60000, c);
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add_offset (obj_1, c);
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unsigned obj_2 = c->pop_pack (false);
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start_object (large_string.c_str(), 10000, c);
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add_offset (obj_2, c);
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add_offset (obj_1, c);
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c->pop_pack (false);
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c->end_serialize();
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}
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static void
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populate_serializer_with_isolation_overflow (hb_serialize_context_t* c)
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{
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std::string large_string(70000, 'a');
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c->start_serialize<char> ();
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unsigned obj_4 = add_object ("4", 1, c);
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start_object (large_string.c_str(), 60000, c);
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add_offset (obj_4, c);
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unsigned obj_3 = c->pop_pack (false);
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start_object (large_string.c_str(), 10000, c);
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add_offset (obj_4, c);
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unsigned obj_2 = c->pop_pack (false);
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start_object ("1", 1, c);
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add_wide_offset (obj_3, c);
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add_offset (obj_2, c);
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c->pop_pack (false);
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c->end_serialize();
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}
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static void
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populate_serializer_with_isolation_overflow_complex (hb_serialize_context_t* c)
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{
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std::string large_string(70000, 'a');
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c->start_serialize<char> ();
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unsigned obj_f = add_object ("f", 1, c);
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start_object ("e", 1, c);
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add_offset (obj_f, c);
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unsigned obj_e = c->pop_pack (false);
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start_object ("c", 1, c);
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add_offset (obj_e, c);
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unsigned obj_c = c->pop_pack (false);
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start_object ("d", 1, c);
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add_offset (obj_e, c);
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unsigned obj_d = c->pop_pack (false);
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start_object (large_string.c_str(), 60000, c);
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add_offset (obj_d, c);
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unsigned obj_h = c->pop_pack (false);
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start_object (large_string.c_str(), 60000, c);
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add_offset (obj_c, c);
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add_offset (obj_h, c);
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unsigned obj_b = c->pop_pack (false);
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start_object (large_string.c_str(), 10000, c);
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add_offset (obj_d, c);
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unsigned obj_g = c->pop_pack (false);
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start_object (large_string.c_str(), 11000, c);
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add_offset (obj_d, c);
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unsigned obj_i = c->pop_pack (false);
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start_object ("a", 1, c);
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add_wide_offset (obj_b, c);
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add_offset (obj_g, c);
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add_offset (obj_i, c);
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c->pop_pack (false);
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c->end_serialize();
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}
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static void
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populate_serializer_with_isolation_overflow_complex_expected (hb_serialize_context_t* c)
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{
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std::string large_string(70000, 'a');
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c->start_serialize<char> ();
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// space 1
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unsigned obj_f_prime = add_object ("f", 1, c);
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start_object ("e", 1, c);
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add_offset (obj_f_prime, c);
|
|
unsigned obj_e_prime = c->pop_pack (false);
|
|
|
|
start_object ("d", 1, c);
|
|
add_offset (obj_e_prime, c);
|
|
unsigned obj_d_prime = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str(), 60000, c);
|
|
add_offset (obj_d_prime, c);
|
|
unsigned obj_h = c->pop_pack (false);
|
|
|
|
start_object ("c", 1, c);
|
|
add_offset (obj_e_prime, c);
|
|
unsigned obj_c = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str(), 60000, c);
|
|
add_offset (obj_c, c);
|
|
add_offset (obj_h, c);
|
|
unsigned obj_b = c->pop_pack (false);
|
|
|
|
// space 0
|
|
|
|
unsigned obj_f = add_object ("f", 1, c);
|
|
|
|
start_object ("e", 1, c);
|
|
add_offset (obj_f, c);
|
|
unsigned obj_e = c->pop_pack (false);
|
|
|
|
|
|
start_object ("d", 1, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_d = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str(), 11000, c);
|
|
add_offset (obj_d, c);
|
|
unsigned obj_i = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str(), 10000, c);
|
|
add_offset (obj_d, c);
|
|
unsigned obj_g = c->pop_pack (false);
|
|
|
|
start_object ("a", 1, c);
|
|
add_wide_offset (obj_b, c);
|
|
add_offset (obj_g, c);
|
|
add_offset (obj_i, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_with_isolation_overflow_spaces (hb_serialize_context_t* c)
|
|
{
|
|
std::string large_string(70000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_d = add_object ("f", 1, c);
|
|
unsigned obj_e = add_object ("f", 1, c);
|
|
|
|
start_object (large_string.c_str(), 60000, c);
|
|
add_offset (obj_d, c);
|
|
unsigned obj_b = c->pop_pack ();
|
|
|
|
start_object (large_string.c_str(), 60000, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_c = c->pop_pack ();
|
|
|
|
|
|
start_object ("a", 1, c);
|
|
add_wide_offset (obj_b, c);
|
|
add_wide_offset (obj_c, c);
|
|
c->pop_pack ();
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_spaces (hb_serialize_context_t* c, bool with_overflow)
|
|
{
|
|
std::string large_string(70000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_i;
|
|
|
|
if (with_overflow)
|
|
obj_i = add_object ("i", 1, c);
|
|
|
|
// Space 2
|
|
unsigned obj_h = add_object ("h", 1, c);
|
|
|
|
start_object (large_string.c_str(), 30000, c);
|
|
add_offset (obj_h, c);
|
|
unsigned obj_e = c->pop_pack (false);
|
|
|
|
start_object ("b", 1, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_b = c->pop_pack (false);
|
|
|
|
// Space 1
|
|
if (!with_overflow)
|
|
obj_i = add_object ("i", 1, c);
|
|
|
|
start_object (large_string.c_str(), 30000, c);
|
|
add_offset (obj_i, c);
|
|
unsigned obj_g = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str(), 30000, c);
|
|
add_offset (obj_i, c);
|
|
unsigned obj_f = c->pop_pack (false);
|
|
|
|
start_object ("d", 1, c);
|
|
add_offset (obj_g, c);
|
|
unsigned obj_d = c->pop_pack (false);
|
|
|
|
start_object ("c", 1, c);
|
|
add_offset (obj_f, c);
|
|
unsigned obj_c = c->pop_pack (false);
|
|
|
|
start_object ("a", 1, c);
|
|
add_wide_offset (obj_b, c);
|
|
add_wide_offset (obj_c, c);
|
|
add_wide_offset (obj_d, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_spaces_16bit_connection (hb_serialize_context_t* c)
|
|
{
|
|
std::string large_string(70000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_g = add_object ("g", 1, c);
|
|
unsigned obj_h = add_object ("h", 1, c);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_g, c);
|
|
unsigned obj_e = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_h, c);
|
|
unsigned obj_f = c->pop_pack (false);
|
|
|
|
start_object ("c", 1, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_c = c->pop_pack (false);
|
|
|
|
start_object ("d", 1, c);
|
|
add_offset (obj_f, c);
|
|
unsigned obj_d = c->pop_pack (false);
|
|
|
|
start_object ("b", 1, c);
|
|
add_offset (obj_e, c);
|
|
add_offset (obj_h, c);
|
|
unsigned obj_b = c->pop_pack (false);
|
|
|
|
start_object ("a", 1, c);
|
|
add_offset (obj_b, c);
|
|
add_wide_offset (obj_c, c);
|
|
add_wide_offset (obj_d, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_spaces_16bit_connection_expected (hb_serialize_context_t* c)
|
|
{
|
|
std::string large_string(70000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_g_prime = add_object ("g", 1, c);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_g_prime, c);
|
|
unsigned obj_e_prime = c->pop_pack (false);
|
|
|
|
start_object ("c", 1, c);
|
|
add_offset (obj_e_prime, c);
|
|
unsigned obj_c = c->pop_pack (false);
|
|
|
|
unsigned obj_h_prime = add_object ("h", 1, c);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_h_prime, c);
|
|
unsigned obj_f = c->pop_pack (false);
|
|
|
|
start_object ("d", 1, c);
|
|
add_offset (obj_f, c);
|
|
unsigned obj_d = c->pop_pack (false);
|
|
|
|
unsigned obj_g = add_object ("g", 1, c);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_g, c);
|
|
unsigned obj_e = c->pop_pack (false);
|
|
|
|
unsigned obj_h = add_object ("h", 1, c);
|
|
|
|
start_object ("b", 1, c);
|
|
add_offset (obj_e, c);
|
|
add_offset (obj_h, c);
|
|
unsigned obj_b = c->pop_pack (false);
|
|
|
|
start_object ("a", 1, c);
|
|
add_offset (obj_b, c);
|
|
add_wide_offset (obj_c, c);
|
|
add_wide_offset (obj_d, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize ();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_short_and_wide_subgraph_root (hb_serialize_context_t* c)
|
|
{
|
|
std::string large_string(70000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_e = add_object ("e", 1, c);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_c = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_c, c);
|
|
unsigned obj_d = c->pop_pack (false);
|
|
|
|
start_object ("b", 1, c);
|
|
add_offset (obj_c, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_b = c->pop_pack (false);
|
|
|
|
start_object ("a", 1, c);
|
|
add_offset (obj_b, c);
|
|
add_wide_offset (obj_c, c);
|
|
add_wide_offset (obj_d, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_short_and_wide_subgraph_root_expected (hb_serialize_context_t* c)
|
|
{
|
|
std::string large_string(70000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_e_prime = add_object ("e", 1, c);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_e_prime, c);
|
|
unsigned obj_c_prime = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_c_prime, c);
|
|
unsigned obj_d = c->pop_pack (false);
|
|
|
|
unsigned obj_e = add_object ("e", 1, c);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_c = c->pop_pack (false);
|
|
|
|
|
|
start_object ("b", 1, c);
|
|
add_offset (obj_c, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_b = c->pop_pack (false);
|
|
|
|
start_object ("a", 1, c);
|
|
add_offset (obj_b, c);
|
|
add_wide_offset (obj_c_prime, c);
|
|
add_wide_offset (obj_d, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_with_split_spaces (hb_serialize_context_t* c)
|
|
{
|
|
// Overflow needs to be resolved by splitting the single space
|
|
std::string large_string(70000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_f = add_object ("f", 1, c);
|
|
|
|
start_object (large_string.c_str(), 40000, c);
|
|
add_offset (obj_f, c);
|
|
unsigned obj_d = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str(), 40000, c);
|
|
add_offset (obj_f, c);
|
|
unsigned obj_e = c->pop_pack (false);
|
|
|
|
start_object ("b", 1, c);
|
|
add_offset (obj_d, c);
|
|
unsigned obj_b = c->pop_pack (false);
|
|
|
|
start_object ("c", 1, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_c = c->pop_pack (false);
|
|
|
|
start_object ("a", 1, c);
|
|
add_wide_offset (obj_b, c);
|
|
add_wide_offset (obj_c, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_with_split_spaces_2 (hb_serialize_context_t* c)
|
|
{
|
|
// Overflow needs to be resolved by splitting the single space
|
|
std::string large_string(70000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_f = add_object ("f", 1, c);
|
|
|
|
start_object (large_string.c_str(), 40000, c);
|
|
add_offset (obj_f, c);
|
|
unsigned obj_d = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str(), 40000, c);
|
|
add_offset (obj_f, c);
|
|
unsigned obj_e = c->pop_pack (false);
|
|
|
|
start_object ("b", 1, c);
|
|
add_offset (obj_d, c);
|
|
unsigned obj_b = c->pop_pack (false);
|
|
|
|
start_object ("c", 1, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_c = c->pop_pack (false);
|
|
|
|
start_object ("a", 1, c);
|
|
add_offset (obj_b, c);
|
|
add_wide_offset (obj_b, c);
|
|
add_wide_offset (obj_c, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_with_split_spaces_expected (hb_serialize_context_t* c)
|
|
{
|
|
// Overflow needs to be resolved by splitting the single space
|
|
|
|
std::string large_string(70000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_f_prime = add_object ("f", 1, c);
|
|
|
|
start_object (large_string.c_str(), 40000, c);
|
|
add_offset (obj_f_prime, c);
|
|
unsigned obj_d = c->pop_pack (false);
|
|
|
|
start_object ("b", 1, c);
|
|
add_offset (obj_d, c);
|
|
unsigned obj_b = c->pop_pack (false);
|
|
|
|
unsigned obj_f = add_object ("f", 1, c);
|
|
|
|
start_object (large_string.c_str(), 40000, c);
|
|
add_offset (obj_f, c);
|
|
unsigned obj_e = c->pop_pack (false);
|
|
|
|
start_object ("c", 1, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_c = c->pop_pack (false);
|
|
|
|
start_object ("a", 1, c);
|
|
add_wide_offset (obj_b, c);
|
|
add_wide_offset (obj_c, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_with_split_spaces_expected_2 (hb_serialize_context_t* c)
|
|
{
|
|
// Overflow needs to be resolved by splitting the single space
|
|
|
|
std::string large_string(70000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
// Space 2
|
|
|
|
unsigned obj_f_double_prime = add_object ("f", 1, c);
|
|
|
|
start_object (large_string.c_str(), 40000, c);
|
|
add_offset (obj_f_double_prime, c);
|
|
unsigned obj_d_prime = c->pop_pack (false);
|
|
|
|
start_object ("b", 1, c);
|
|
add_offset (obj_d_prime, c);
|
|
unsigned obj_b_prime = c->pop_pack (false);
|
|
|
|
// Space 1
|
|
|
|
unsigned obj_f_prime = add_object ("f", 1, c);
|
|
|
|
start_object (large_string.c_str(), 40000, c);
|
|
add_offset (obj_f_prime, c);
|
|
unsigned obj_e = c->pop_pack (false);
|
|
|
|
start_object ("c", 1, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_c = c->pop_pack (false);
|
|
|
|
// Space 0
|
|
|
|
unsigned obj_f = add_object ("f", 1, c);
|
|
|
|
start_object (large_string.c_str(), 40000, c);
|
|
add_offset (obj_f, c);
|
|
unsigned obj_d = c->pop_pack (false);
|
|
|
|
start_object ("b", 1, c);
|
|
add_offset (obj_d, c);
|
|
unsigned obj_b = c->pop_pack (false);
|
|
|
|
// Root
|
|
start_object ("a", 1, c);
|
|
add_offset (obj_b, c);
|
|
add_wide_offset (obj_b_prime, c);
|
|
add_wide_offset (obj_c, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_complex_2 (hb_serialize_context_t* c)
|
|
{
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_5 = add_object ("mn", 2, c);
|
|
|
|
unsigned obj_4 = add_object ("jkl", 3, c);
|
|
|
|
start_object ("ghi", 3, c);
|
|
add_offset (obj_4, c);
|
|
unsigned obj_3 = c->pop_pack (false);
|
|
|
|
start_object ("def", 3, c);
|
|
add_offset (obj_3, c);
|
|
unsigned obj_2 = c->pop_pack (false);
|
|
|
|
start_object ("abc", 3, c);
|
|
add_offset (obj_2, c);
|
|
add_offset (obj_4, c);
|
|
add_offset (obj_5, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_complex_3 (hb_serialize_context_t* c)
|
|
{
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_6 = add_object ("opqrst", 6, c);
|
|
|
|
unsigned obj_5 = add_object ("mn", 2, c);
|
|
|
|
start_object ("jkl", 3, c);
|
|
add_offset (obj_6, c);
|
|
unsigned obj_4 = c->pop_pack (false);
|
|
|
|
start_object ("ghi", 3, c);
|
|
add_offset (obj_4, c);
|
|
unsigned obj_3 = c->pop_pack (false);
|
|
|
|
start_object ("def", 3, c);
|
|
add_offset (obj_3, c);
|
|
unsigned obj_2 = c->pop_pack (false);
|
|
|
|
start_object ("abc", 3, c);
|
|
add_offset (obj_2, c);
|
|
add_offset (obj_4, c);
|
|
add_offset (obj_5, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_virtual_link (hb_serialize_context_t* c)
|
|
{
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_d = add_object ("d", 1, c);
|
|
|
|
start_object ("b", 1, c);
|
|
add_offset (obj_d, c);
|
|
unsigned obj_b = c->pop_pack (false);
|
|
|
|
start_object ("e", 1, c);
|
|
add_virtual_offset (obj_b, c);
|
|
unsigned obj_e = c->pop_pack (false);
|
|
|
|
start_object ("c", 1, c);
|
|
add_offset (obj_e, c);
|
|
unsigned obj_c = c->pop_pack (false);
|
|
|
|
start_object ("a", 1, c);
|
|
add_offset (obj_b, c);
|
|
add_offset (obj_c, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_with_24_and_32_bit_offsets (hb_serialize_context_t* c)
|
|
{
|
|
std::string large_string(60000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned obj_f = add_object ("f", 1, c);
|
|
unsigned obj_g = add_object ("g", 1, c);
|
|
unsigned obj_j = add_object ("j", 1, c);
|
|
unsigned obj_k = add_object ("k", 1, c);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_f, c);
|
|
unsigned obj_c = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_g, c);
|
|
unsigned obj_d = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_j, c);
|
|
unsigned obj_h = c->pop_pack (false);
|
|
|
|
start_object (large_string.c_str (), 40000, c);
|
|
add_offset (obj_k, c);
|
|
unsigned obj_i = c->pop_pack (false);
|
|
|
|
start_object ("e", 1, c);
|
|
add_wide_offset (obj_h, c);
|
|
add_wide_offset (obj_i, c);
|
|
unsigned obj_e = c->pop_pack (false);
|
|
|
|
start_object ("b", 1, c);
|
|
add_24_offset (obj_c, c);
|
|
add_24_offset (obj_d, c);
|
|
add_24_offset (obj_e, c);
|
|
unsigned obj_b = c->pop_pack (false);
|
|
|
|
start_object ("a", 1, c);
|
|
add_24_offset (obj_b, c);
|
|
c->pop_pack (false);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
static void
|
|
populate_serializer_with_extension_promotion (hb_serialize_context_t* c,
|
|
int num_extensions = 0)
|
|
{
|
|
constexpr int num_lookups = 5;
|
|
constexpr int num_subtables = num_lookups * 2;
|
|
unsigned int lookups[num_lookups];
|
|
unsigned int subtables[num_subtables];
|
|
unsigned int extensions[num_subtables];
|
|
|
|
std::string large_string(60000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
|
|
for (int i = num_subtables - 1; i >= 0; i--)
|
|
subtables[i] = add_object(large_string.c_str (), 15000, c);
|
|
|
|
for (int i = num_subtables - 1;
|
|
i >= (num_lookups - num_extensions) * 2;
|
|
i--)
|
|
{
|
|
unsigned ext_index = i - (num_lookups - num_extensions) * 2;
|
|
unsigned subtable_index = num_subtables - ext_index - 1;
|
|
extensions[i] = add_extension (subtables[subtable_index], 5, c);
|
|
}
|
|
|
|
for (int i = num_lookups - 1; i >= 0; i--)
|
|
{
|
|
bool is_ext = (i >= (num_lookups - num_extensions));
|
|
|
|
start_lookup (is_ext ? (char) 7 : (char) 5,
|
|
2,
|
|
c);
|
|
|
|
if (is_ext) {
|
|
add_offset (extensions[i * 2], c);
|
|
add_offset (extensions[i * 2 + 1], c);
|
|
} else {
|
|
add_offset (subtables[i * 2], c);
|
|
add_offset (subtables[i * 2 + 1], c);
|
|
}
|
|
|
|
lookups[i] = finish_lookup (c);
|
|
}
|
|
|
|
unsigned lookup_list = add_lookup_list (lookups, num_lookups, c);
|
|
|
|
add_gsubgpos_header (lookup_list, c);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
template<int num_pair_pos_1, int num_pair_set>
|
|
static void
|
|
populate_serializer_with_large_pair_pos_1 (hb_serialize_context_t* c,
|
|
bool as_extension = false)
|
|
{
|
|
std::string large_string(60000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
constexpr int total_pair_set = num_pair_pos_1 * num_pair_set;
|
|
unsigned pair_set[total_pair_set];
|
|
unsigned coverage[num_pair_pos_1];
|
|
unsigned pair_pos_1[num_pair_pos_1];
|
|
|
|
for (int i = num_pair_pos_1 - 1; i >= 0; i--)
|
|
{
|
|
for (int j = (i + 1) * num_pair_set - 1; j >= i * num_pair_set; j--)
|
|
pair_set[j] = add_object (large_string.c_str (), 30000 + j, c);
|
|
|
|
coverage[i] = add_coverage (i * num_pair_set,
|
|
(i + 1) * num_pair_set - 1, c);
|
|
|
|
pair_pos_1[i] = add_pair_pos_1 (&pair_set[i * num_pair_set],
|
|
num_pair_set,
|
|
coverage[i],
|
|
c);
|
|
}
|
|
|
|
unsigned pair_pos_2 = add_object (large_string.c_str(), 200, c);
|
|
|
|
if (as_extension) {
|
|
pair_pos_2 = add_extension (pair_pos_2, 2, c);
|
|
for (int i = num_pair_pos_1 - 1; i >= 0; i--)
|
|
pair_pos_1[i] = add_extension (pair_pos_1[i], 2, c);
|
|
}
|
|
|
|
start_lookup (as_extension ? 9 : 2, 1 + num_pair_pos_1, c);
|
|
|
|
for (int i = 0; i < num_pair_pos_1; i++)
|
|
add_offset (pair_pos_1[i], c);
|
|
add_offset (pair_pos_2, c);
|
|
|
|
unsigned lookup = finish_lookup (c);
|
|
|
|
unsigned lookup_list = add_lookup_list (&lookup, 1, c);
|
|
|
|
add_gsubgpos_header (lookup_list, c);
|
|
|
|
c->end_serialize();
|
|
}
|
|
|
|
template<int num_pair_pos_2, int num_class_1, int num_class_2>
|
|
static void
|
|
populate_serializer_with_large_pair_pos_2 (hb_serialize_context_t* c,
|
|
bool as_extension = false,
|
|
bool with_device_tables = false,
|
|
bool extra_table = true)
|
|
{
|
|
std::string large_string(100000, 'a');
|
|
c->start_serialize<char> ();
|
|
|
|
unsigned coverage[num_pair_pos_2];
|
|
unsigned class_def_1[num_pair_pos_2];
|
|
unsigned class_def_2[num_pair_pos_2];
|
|
unsigned pair_pos_2[num_pair_pos_2];
|
|
|
|
unsigned* device_tables = (unsigned*) calloc (num_pair_pos_2 * num_class_1 * num_class_2,
|
|
sizeof(unsigned));
|
|
|
|
// Total glyphs = num_class_1 * num_pair_pos_2
|
|
for (int i = num_pair_pos_2 - 1; i >= 0; i--)
|
|
{
|
|
unsigned start_glyph = 5 + i * num_class_1;
|
|
if (num_class_2 >= num_class_1)
|
|
{
|
|
class_def_2[i] = add_class_def (11,
|
|
10 + num_class_2, c);
|
|
class_def_1[i] = add_class_def (start_glyph + 1,
|
|
start_glyph + num_class_1,
|
|
c);
|
|
} else {
|
|
class_def_1[i] = add_class_def (start_glyph + 1,
|
|
start_glyph + num_class_1,
|
|
c);
|
|
class_def_2[i] = add_class_def (11,
|
|
10 + num_class_2, c);
|
|
}
|
|
|
|
coverage[i] = add_coverage (start_glyph,
|
|
start_glyph + num_class_1 - 1,
|
|
c);
|
|
|
|
if (with_device_tables)
|
|
{
|
|
for(int j = (i + 1) * num_class_1 * num_class_2 - 1;
|
|
j >= i * num_class_1 * num_class_2;
|
|
j--)
|
|
{
|
|
uint8_t table[] = {
|
|
(uint8_t) ((j >> 8) & 0xFF),
|
|
(uint8_t) (j & 0xFF),
|
|
};
|
|
device_tables[j] = add_object ((char*) table, 2, c);
|
|
}
|
|
}
|
|
|
|
pair_pos_2[i] = add_pair_pos_2 (1 + i * num_class_1,
|
|
coverage[i],
|
|
class_def_1[i], num_class_1,
|
|
class_def_2[i], num_class_2,
|
|
with_device_tables
|
|
? &device_tables[i * num_class_1 * num_class_2]
|
|
: nullptr,
|
|
c);
|
|
}
|
|
|
|
|
|
unsigned pair_pos_1 = 0;
|
|
if (extra_table) pair_pos_1 = add_object (large_string.c_str(), 100000, c);
|
|
|
|
if (as_extension) {
|
|
for (int i = num_pair_pos_2 - 1; i >= 0; i--)
|
|
pair_pos_2[i] = add_extension (pair_pos_2[i], 2, c);
|
|
|
|
if (extra_table)
|
|
pair_pos_1 = add_extension (pair_pos_1, 2, c);
|
|
}
|
|
|
|
start_lookup (as_extension ? 9 : 2, 1 + num_pair_pos_2, c);
|
|
|
|
if (extra_table)
|
|
add_offset (pair_pos_1, c);
|
|
|
|
for (int i = 0; i < num_pair_pos_2; i++)
|
|
add_offset (pair_pos_2[i], c);
|
|
|
|
unsigned lookup = finish_lookup (c);
|
|
|
|
unsigned lookup_list = add_lookup_list (&lookup, 1, c);
|
|
|
|
add_gsubgpos_header (lookup_list, c);
|
|
|
|
c->end_serialize();
|
|
|
|
free (device_tables);
|
|
}
|
|
|
|
static void test_sort_shortest ()
|
|
{
|
|
size_t buffer_size = 100;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_complex_2 (&c);
|
|
|
|
graph_t graph (c.object_graph ());
|
|
graph.sort_shortest_distance ();
|
|
|
|
assert(strncmp (graph.object (4).head, "abc", 3) == 0);
|
|
assert(graph.object (4).real_links.length == 3);
|
|
assert(graph.object (4).real_links[0].objidx == 2);
|
|
assert(graph.object (4).real_links[1].objidx == 0);
|
|
assert(graph.object (4).real_links[2].objidx == 3);
|
|
|
|
assert(strncmp (graph.object (3).head, "mn", 2) == 0);
|
|
assert(graph.object (3).real_links.length == 0);
|
|
|
|
assert(strncmp (graph.object (2).head, "def", 3) == 0);
|
|
assert(graph.object (2).real_links.length == 1);
|
|
assert(graph.object (2).real_links[0].objidx == 1);
|
|
|
|
assert(strncmp (graph.object (1).head, "ghi", 3) == 0);
|
|
assert(graph.object (1).real_links.length == 1);
|
|
assert(graph.object (1).real_links[0].objidx == 0);
|
|
|
|
assert(strncmp (graph.object (0).head, "jkl", 3) == 0);
|
|
assert(graph.object (0).real_links.length == 0);
|
|
|
|
free (buffer);
|
|
}
|
|
|
|
static void test_duplicate_leaf ()
|
|
{
|
|
size_t buffer_size = 100;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_complex_2 (&c);
|
|
|
|
graph_t graph (c.object_graph ());
|
|
graph.duplicate (4, 1);
|
|
|
|
assert(strncmp (graph.object (5).head, "abc", 3) == 0);
|
|
assert(graph.object (5).real_links.length == 3);
|
|
assert(graph.object (5).real_links[0].objidx == 3);
|
|
assert(graph.object (5).real_links[1].objidx == 4);
|
|
assert(graph.object (5).real_links[2].objidx == 0);
|
|
|
|
assert(strncmp (graph.object (4).head, "jkl", 3) == 0);
|
|
assert(graph.object (4).real_links.length == 0);
|
|
|
|
assert(strncmp (graph.object (3).head, "def", 3) == 0);
|
|
assert(graph.object (3).real_links.length == 1);
|
|
assert(graph.object (3).real_links[0].objidx == 2);
|
|
|
|
assert(strncmp (graph.object (2).head, "ghi", 3) == 0);
|
|
assert(graph.object (2).real_links.length == 1);
|
|
assert(graph.object (2).real_links[0].objidx == 1);
|
|
|
|
assert(strncmp (graph.object (1).head, "jkl", 3) == 0);
|
|
assert(graph.object (1).real_links.length == 0);
|
|
|
|
assert(strncmp (graph.object (0).head, "mn", 2) == 0);
|
|
assert(graph.object (0).real_links.length == 0);
|
|
|
|
free (buffer);
|
|
}
|
|
|
|
static void test_duplicate_interior ()
|
|
{
|
|
size_t buffer_size = 100;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_complex_3 (&c);
|
|
|
|
graph_t graph (c.object_graph ());
|
|
graph.duplicate (3, 2);
|
|
|
|
assert(strncmp (graph.object (6).head, "abc", 3) == 0);
|
|
assert(graph.object (6).real_links.length == 3);
|
|
assert(graph.object (6).real_links[0].objidx == 4);
|
|
assert(graph.object (6).real_links[1].objidx == 2);
|
|
assert(graph.object (6).real_links[2].objidx == 1);
|
|
|
|
assert(strncmp (graph.object (5).head, "jkl", 3) == 0);
|
|
assert(graph.object (5).real_links.length == 1);
|
|
assert(graph.object (5).real_links[0].objidx == 0);
|
|
|
|
assert(strncmp (graph.object (4).head, "def", 3) == 0);
|
|
assert(graph.object (4).real_links.length == 1);
|
|
assert(graph.object (4).real_links[0].objidx == 3);
|
|
|
|
assert(strncmp (graph.object (3).head, "ghi", 3) == 0);
|
|
assert(graph.object (3).real_links.length == 1);
|
|
assert(graph.object (3).real_links[0].objidx == 5);
|
|
|
|
assert(strncmp (graph.object (2).head, "jkl", 3) == 0);
|
|
assert(graph.object (2).real_links.length == 1);
|
|
assert(graph.object (2).real_links[0].objidx == 0);
|
|
|
|
assert(strncmp (graph.object (1).head, "mn", 2) == 0);
|
|
assert(graph.object (1).real_links.length == 0);
|
|
|
|
assert(strncmp (graph.object (0).head, "opqrst", 6) == 0);
|
|
assert(graph.object (0).real_links.length == 0);
|
|
|
|
free (buffer);
|
|
}
|
|
|
|
static void
|
|
test_serialize ()
|
|
{
|
|
size_t buffer_size = 100;
|
|
void* buffer_1 = malloc (buffer_size);
|
|
hb_serialize_context_t c1 (buffer_1, buffer_size);
|
|
populate_serializer_simple (&c1);
|
|
hb_bytes_t expected = c1.copy_bytes ();
|
|
|
|
graph_t graph (c1.object_graph ());
|
|
hb_blob_t* out = graph::serialize (graph);
|
|
free (buffer_1);
|
|
|
|
hb_bytes_t actual = out->as_bytes ();
|
|
assert (actual == expected);
|
|
expected.fini ();
|
|
hb_blob_destroy (out);
|
|
}
|
|
|
|
static void test_will_overflow_1 ()
|
|
{
|
|
size_t buffer_size = 100;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_complex_2 (&c);
|
|
graph_t graph (c.object_graph ());
|
|
|
|
assert (!graph::will_overflow (graph, nullptr));
|
|
|
|
free (buffer);
|
|
}
|
|
|
|
static void test_will_overflow_2 ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_overflow (&c);
|
|
graph_t graph (c.object_graph ());
|
|
|
|
assert (graph::will_overflow (graph, nullptr));
|
|
|
|
free (buffer);
|
|
}
|
|
|
|
static void test_will_overflow_3 ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_dedup_overflow (&c);
|
|
graph_t graph (c.object_graph ());
|
|
|
|
assert (graph::will_overflow (graph, nullptr));
|
|
|
|
free (buffer);
|
|
}
|
|
|
|
static void test_resolve_overflows_via_sort ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_overflow (&c);
|
|
graph_t graph (c.object_graph ());
|
|
|
|
hb_blob_t* out = hb_resolve_overflows (c.object_graph (), HB_TAG_NONE);
|
|
assert (out);
|
|
hb_bytes_t result = out->as_bytes ();
|
|
assert (result.length == (80000 + 3 + 3 * 2));
|
|
|
|
free (buffer);
|
|
hb_blob_destroy (out);
|
|
}
|
|
|
|
static void test_resolve_overflows_via_duplication ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_dedup_overflow (&c);
|
|
graph_t graph (c.object_graph ());
|
|
|
|
hb_blob_t* out = hb_resolve_overflows (c.object_graph (), HB_TAG_NONE);
|
|
assert (out);
|
|
hb_bytes_t result = out->as_bytes ();
|
|
assert (result.length == (10000 + 2 * 2 + 60000 + 2 + 3 * 2));
|
|
|
|
free (buffer);
|
|
hb_blob_destroy (out);
|
|
}
|
|
|
|
static void test_resolve_overflows_via_space_assignment ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_spaces (&c, true);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_spaces (&e, false);
|
|
|
|
run_resolve_overflow_test ("test_resolve_overflows_via_space_assignment",
|
|
c,
|
|
e);
|
|
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
}
|
|
|
|
static void test_resolve_overflows_via_isolation ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_isolation_overflow (&c);
|
|
graph_t graph (c.object_graph ());
|
|
|
|
assert (c.offset_overflow ());
|
|
hb_blob_t* out = hb_resolve_overflows (c.object_graph (), HB_TAG ('G', 'S', 'U', 'B'), 0);
|
|
assert (out);
|
|
hb_bytes_t result = out->as_bytes ();
|
|
assert (result.length == (1 + 10000 + 60000 + 1 + 1
|
|
+ 4 + 3 * 2));
|
|
|
|
free (buffer);
|
|
hb_blob_destroy (out);
|
|
}
|
|
|
|
static void test_resolve_overflows_via_isolation_with_recursive_duplication ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_isolation_overflow_complex (&c);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_with_isolation_overflow_complex_expected (&e);
|
|
|
|
run_resolve_overflow_test ("test_resolve_overflows_via_isolation_with_recursive_duplication",
|
|
c,
|
|
e);
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
}
|
|
|
|
static void test_resolve_overflows_via_isolating_16bit_space ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_spaces_16bit_connection (&c);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_spaces_16bit_connection_expected (&e);
|
|
|
|
run_resolve_overflow_test ("test_resolve_overflows_via_isolating_16bit_space",
|
|
c,
|
|
e);
|
|
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
}
|
|
|
|
static void test_resolve_overflows_via_isolating_16bit_space_2 ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_short_and_wide_subgraph_root (&c);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_short_and_wide_subgraph_root_expected (&e);
|
|
|
|
run_resolve_overflow_test ("test_resolve_overflows_via_isolating_16bit_space_2",
|
|
c,
|
|
e);
|
|
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
}
|
|
|
|
static void test_resolve_overflows_via_isolation_spaces ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_isolation_overflow_spaces (&c);
|
|
graph_t graph (c.object_graph ());
|
|
|
|
assert (c.offset_overflow ());
|
|
hb_blob_t* out = hb_resolve_overflows (c.object_graph (), HB_TAG ('G', 'S', 'U', 'B'), 0);
|
|
assert (out);
|
|
hb_bytes_t result = out->as_bytes ();
|
|
|
|
unsigned expected_length = 3 + 2 * 60000; // objects
|
|
expected_length += 2 * 4 + 2 * 2; // links
|
|
assert (result.length == expected_length);
|
|
|
|
free (buffer);
|
|
hb_blob_destroy (out);
|
|
}
|
|
|
|
static void test_resolve_mixed_overflows_via_isolation_spaces ()
|
|
{
|
|
size_t buffer_size = 200000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_24_and_32_bit_offsets (&c);
|
|
graph_t graph (c.object_graph ());
|
|
|
|
assert (c.offset_overflow ());
|
|
hb_blob_t* out = hb_resolve_overflows (c.object_graph (), HB_TAG ('G', 'S', 'U', 'B'), 0);
|
|
assert (out);
|
|
hb_bytes_t result = out->as_bytes ();
|
|
|
|
unsigned expected_length =
|
|
// Objects
|
|
7 +
|
|
4 * 40000;
|
|
|
|
expected_length +=
|
|
// Links
|
|
2 * 4 + // 32
|
|
4 * 3 + // 24
|
|
4 * 2; // 16
|
|
|
|
assert (result.length == expected_length);
|
|
|
|
free (buffer);
|
|
hb_blob_destroy (out);
|
|
}
|
|
|
|
static void test_resolve_with_extension_promotion ()
|
|
{
|
|
size_t buffer_size = 200000;
|
|
void* buffer = malloc (buffer_size);
|
|
assert (buffer);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_extension_promotion (&c);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
assert (expected_buffer);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_with_extension_promotion (&e, 3);
|
|
|
|
run_resolve_overflow_test ("test_resolve_with_extension_promotion",
|
|
c,
|
|
e,
|
|
20,
|
|
true);
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
}
|
|
|
|
static void test_resolve_with_basic_pair_pos_1_split ()
|
|
{
|
|
size_t buffer_size = 200000;
|
|
void* buffer = malloc (buffer_size);
|
|
assert (buffer);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_large_pair_pos_1 <1, 4>(&c);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
assert (expected_buffer);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_with_large_pair_pos_1 <2, 2>(&e, true);
|
|
|
|
run_resolve_overflow_test ("test_resolve_with_basic_pair_pos_1_split",
|
|
c,
|
|
e,
|
|
20,
|
|
true,
|
|
HB_TAG('G', 'P', 'O', 'S'));
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
}
|
|
|
|
static void test_resolve_with_extension_pair_pos_1_split ()
|
|
{
|
|
size_t buffer_size = 200000;
|
|
void* buffer = malloc (buffer_size);
|
|
assert (buffer);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_large_pair_pos_1 <1, 4>(&c, true);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
assert (expected_buffer);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_with_large_pair_pos_1 <2, 2>(&e, true);
|
|
|
|
run_resolve_overflow_test ("test_resolve_with_extension_pair_pos_1_split",
|
|
c,
|
|
e,
|
|
20,
|
|
true,
|
|
HB_TAG('G', 'P', 'O', 'S'));
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
}
|
|
|
|
static void test_resolve_with_basic_pair_pos_2_split ()
|
|
{
|
|
size_t buffer_size = 300000;
|
|
void* buffer = malloc (buffer_size);
|
|
assert (buffer);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_large_pair_pos_2 <1, 4, 3000>(&c);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
assert (expected_buffer);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_with_large_pair_pos_2 <2, 2, 3000>(&e, true);
|
|
|
|
run_resolve_overflow_test ("test_resolve_with_basic_pair_pos_2_split",
|
|
c,
|
|
e,
|
|
20,
|
|
true,
|
|
HB_TAG('G', 'P', 'O', 'S'));
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
}
|
|
|
|
static void test_resolve_with_close_to_limit_pair_pos_2_split ()
|
|
{
|
|
size_t buffer_size = 300000;
|
|
void* buffer = malloc (buffer_size);
|
|
assert (buffer);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_large_pair_pos_2 <1, 1596, 10>(&c, true, false, false);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
assert (expected_buffer);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_with_large_pair_pos_2 <2, 798, 10>(&e, true, false, false);
|
|
|
|
run_resolve_overflow_test ("test_resolve_with_close_to_limit_pair_pos_2_split",
|
|
c,
|
|
e,
|
|
20,
|
|
true,
|
|
HB_TAG('G', 'P', 'O', 'S'));
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
}
|
|
|
|
static void test_resolve_with_pair_pos_2_split_with_device_tables ()
|
|
{
|
|
size_t buffer_size = 300000;
|
|
void* buffer = malloc (buffer_size);
|
|
assert (buffer);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_large_pair_pos_2 <1, 4, 2000>(&c, false, true);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
assert (expected_buffer);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_with_large_pair_pos_2 <2, 2, 2000>(&e, true, true);
|
|
|
|
run_resolve_overflow_test ("test_resolve_with_pair_pos_2_split_with_device_tables",
|
|
c,
|
|
e,
|
|
20,
|
|
true,
|
|
HB_TAG('G', 'P', 'O', 'S'));
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
}
|
|
|
|
static void test_resolve_overflows_via_splitting_spaces ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_split_spaces (&c);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_with_split_spaces_expected (&e);
|
|
|
|
run_resolve_overflow_test ("test_resolve_overflows_via_splitting_spaces",
|
|
c,
|
|
e,
|
|
1);
|
|
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
|
|
}
|
|
|
|
static void test_resolve_overflows_via_splitting_spaces_2 ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_split_spaces_2 (&c);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_with_split_spaces_expected_2 (&e);
|
|
|
|
run_resolve_overflow_test ("test_resolve_overflows_via_splitting_spaces_2",
|
|
c,
|
|
e,
|
|
1);
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
}
|
|
|
|
static void test_resolve_overflows_via_priority ()
|
|
{
|
|
size_t buffer_size = 160000;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_with_priority_overflow (&c);
|
|
|
|
void* expected_buffer = malloc (buffer_size);
|
|
hb_serialize_context_t e (expected_buffer, buffer_size);
|
|
populate_serializer_with_priority_overflow_expected (&e);
|
|
|
|
run_resolve_overflow_test ("test_resolve_overflows_via_priority",
|
|
c,
|
|
e,
|
|
3);
|
|
free (buffer);
|
|
free (expected_buffer);
|
|
}
|
|
|
|
|
|
static void test_virtual_link ()
|
|
{
|
|
size_t buffer_size = 100;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
populate_serializer_virtual_link (&c);
|
|
|
|
hb_blob_t* out = hb_resolve_overflows (c.object_graph (), HB_TAG_NONE);
|
|
assert (out);
|
|
|
|
hb_bytes_t result = out->as_bytes ();
|
|
assert (result.length == 5 + 4 * 2);
|
|
assert (result[0] == 'a');
|
|
assert (result[5] == 'c');
|
|
assert (result[8] == 'e');
|
|
assert (result[9] == 'b');
|
|
assert (result[12] == 'd');
|
|
|
|
free (buffer);
|
|
hb_blob_destroy (out);
|
|
}
|
|
|
|
static void
|
|
test_shared_node_with_virtual_links ()
|
|
{
|
|
size_t buffer_size = 100;
|
|
void* buffer = malloc (buffer_size);
|
|
hb_serialize_context_t c (buffer, buffer_size);
|
|
|
|
c.start_serialize<char> ();
|
|
|
|
unsigned obj_b = add_object ("b", 1, &c);
|
|
unsigned obj_c = add_object ("c", 1, &c);
|
|
|
|
start_object ("d", 1, &c);
|
|
add_virtual_offset (obj_b, &c);
|
|
unsigned obj_d_1 = c.pop_pack ();
|
|
|
|
start_object ("d", 1, &c);
|
|
add_virtual_offset (obj_c, &c);
|
|
unsigned obj_d_2 = c.pop_pack ();
|
|
|
|
assert (obj_d_1 == obj_d_2);
|
|
|
|
start_object ("a", 1, &c);
|
|
add_offset (obj_b, &c);
|
|
add_offset (obj_c, &c);
|
|
add_offset (obj_d_1, &c);
|
|
add_offset (obj_d_2, &c);
|
|
c.pop_pack ();
|
|
c.end_serialize ();
|
|
|
|
assert(c.object_graph() [obj_d_1]->virtual_links.length == 2);
|
|
assert(c.object_graph() [obj_d_1]->virtual_links[0].objidx == obj_b);
|
|
assert(c.object_graph() [obj_d_1]->virtual_links[1].objidx == obj_c);
|
|
free(buffer);
|
|
}
|
|
|
|
|
|
// TODO(garretrieger): update will_overflow tests to check the overflows array.
|
|
// TODO(garretrieger): add tests for priority raising.
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
test_serialize ();
|
|
test_sort_shortest ();
|
|
test_will_overflow_1 ();
|
|
test_will_overflow_2 ();
|
|
test_will_overflow_3 ();
|
|
test_resolve_overflows_via_sort ();
|
|
test_resolve_overflows_via_duplication ();
|
|
test_resolve_overflows_via_priority ();
|
|
test_resolve_overflows_via_space_assignment ();
|
|
test_resolve_overflows_via_isolation ();
|
|
test_resolve_overflows_via_isolation_with_recursive_duplication ();
|
|
test_resolve_overflows_via_isolation_spaces ();
|
|
test_resolve_overflows_via_isolating_16bit_space ();
|
|
test_resolve_overflows_via_isolating_16bit_space_2 ();
|
|
test_resolve_overflows_via_splitting_spaces ();
|
|
test_resolve_overflows_via_splitting_spaces_2 ();
|
|
test_resolve_mixed_overflows_via_isolation_spaces ();
|
|
test_duplicate_leaf ();
|
|
test_duplicate_interior ();
|
|
test_virtual_link ();
|
|
test_shared_node_with_virtual_links ();
|
|
test_resolve_with_extension_promotion ();
|
|
test_resolve_with_basic_pair_pos_1_split ();
|
|
test_resolve_with_extension_pair_pos_1_split ();
|
|
test_resolve_with_basic_pair_pos_2_split ();
|
|
test_resolve_with_pair_pos_2_split_with_device_tables ();
|
|
test_resolve_with_close_to_limit_pair_pos_2_split ();
|
|
|
|
// TODO(grieger): have run overflow tests compare graph equality not final packed binary.
|
|
// TODO(grieger): split test where multiple subtables in one lookup are split to test link ordering.
|
|
// TODO(grieger): split test where coverage table in subtable that is being split is shared.
|
|
// TODO(grieger): test with extensions already mixed in as well.
|
|
// TODO(grieger): test two layer ext promotion setup.
|
|
// TODO(grieger): test sorting by subtables per byte in ext. promotion.
|
|
}
|