size_t final_size () const
{
return 4 // header
- + 8 * 3 // 3 EncodingRecord
+ + 8 * num_enc_records
+ CmapSubtableFormat4::get_sub_table_size (this->format4_segments)
+ CmapSubtableFormat12::get_sub_table_size (this->format12_groups);
}
+ unsigned int num_enc_records;
+ bool has_unicode_bmp;
+ bool has_unicode_ucs4;
+ bool has_ms_bmp;
+ bool has_ms_ucs4;
hb_sorted_vector_t<CmapSubtableFormat4::segment_plan> format4_segments;
hb_sorted_vector_t<CmapSubtableLongGroup> format12_groups;
};
bool _create_plan (const hb_subset_plan_t *plan,
subset_plan *cmap_plan) const
{
+ cmap_plan->has_unicode_bmp = find_subtable (0, 3);
+ cmap_plan->has_unicode_ucs4 = find_subtable (0, 4);
+ cmap_plan->has_ms_bmp = find_subtable (3, 1);
+ cmap_plan->has_ms_ucs4 = find_subtable (3, 10);
+ cmap_plan->num_enc_records = cmap_plan->has_unicode_bmp + cmap_plan->has_unicode_ucs4 + cmap_plan->has_ms_bmp + cmap_plan->has_ms_ucs4;
+
if (unlikely (!CmapSubtableFormat4::create_sub_table_plan (plan, &cmap_plan->format4_segments)))
return false;
table->version = 0;
- if (unlikely (!table->encodingRecord.serialize (&c, /* numTables */ cmap_subset_plan.format12_groups ? 3 : 2))) return false;
+ if (unlikely (!table->encodingRecord.serialize (&c, cmap_subset_plan.num_enc_records))) return false;
// TODO(grieger): Convert the below to a for loop
+ int enc_index = 0;
+ int unicode_bmp_index = 0;
+ int unicode_ucs4_index = 0;
+ int ms_bmp_index = 0;
+ int ms_ucs4_index = 0;
// Format 4, Plat 0 Encoding Record
- EncodingRecord &format4_plat0_rec = table->encodingRecord[0];
- format4_plat0_rec.platformID = 0; // Unicode
- format4_plat0_rec.encodingID = 3;
+ if (cmap_subset_plan.has_unicode_bmp)
+ {
+ unicode_bmp_index = enc_index;
+ EncodingRecord &format4_plat0_rec = table->encodingRecord[enc_index++];
+ format4_plat0_rec.platformID = 0; // Unicode
+ format4_plat0_rec.encodingID = 3;
+ }
+
+ // Format 12, Plat 0 Encoding Record
+ if (cmap_subset_plan.has_unicode_ucs4)
+ {
+ unicode_ucs4_index = enc_index;
+ EncodingRecord &format12_rec = table->encodingRecord[enc_index++];
+ format12_rec.platformID = 0; // Unicode
+ format12_rec.encodingID = 4; // Unicode UCS-4
+ }
// Format 4, Plat 3 Encoding Record
- EncodingRecord &format4_plat3_rec = table->encodingRecord[1];
- format4_plat3_rec.platformID = 3; // Windows
- format4_plat3_rec.encodingID = 1; // Unicode BMP
+ if (cmap_subset_plan.has_ms_bmp)
+ {
+ ms_bmp_index = enc_index;
+ EncodingRecord &format4_plat3_rec = table->encodingRecord[enc_index++];
+ format4_plat3_rec.platformID = 3; // Windows
+ format4_plat3_rec.encodingID = 1; // Unicode BMP
+ }
- // Format 12 Encoding Record
- if (cmap_subset_plan.format12_groups)
+ // Format 12, Plat 3 Encoding Record
+ if (cmap_subset_plan.has_ms_ucs4)
{
- EncodingRecord &format12_rec = table->encodingRecord[2];
+ ms_ucs4_index = enc_index;
+ EncodingRecord &format12_rec = table->encodingRecord[enc_index++];
format12_rec.platformID = 3; // Windows
format12_rec.encodingID = 10; // Unicode UCS-4
}
// Write out format 4 sub table
{
- CmapSubtable &subtable = format4_plat0_rec.subtable.serialize (&c, table);
- format4_plat3_rec.subtable = (unsigned int) format4_plat0_rec.subtable;
+ if (unlikely (!cmap_subset_plan.has_unicode_bmp && !cmap_subset_plan.has_ms_bmp)) return false;
+ EncodingRecord &format4_rec = cmap_subset_plan.has_unicode_bmp?
+ table->encodingRecord[unicode_bmp_index]:
+ table->encodingRecord[ms_bmp_index];
+ CmapSubtable &subtable = format4_rec.subtable.serialize (&c, table);
+ if (cmap_subset_plan.has_unicode_bmp && cmap_subset_plan.has_ms_bmp)
+ table->encodingRecord[ms_bmp_index].subtable = (unsigned int) format4_rec.subtable;
subtable.u.format = 4;
CmapSubtableFormat4 &format4 = subtable.u.format4;
// Write out format 12 sub table.
if (cmap_subset_plan.format12_groups)
{
- EncodingRecord &format12_rec = table->encodingRecord[2];
+ if (unlikely (!cmap_subset_plan.has_unicode_ucs4 && !cmap_subset_plan.has_ms_ucs4)) return false;
+ EncodingRecord &format12_rec = cmap_subset_plan.has_unicode_ucs4?
+ table->encodingRecord[unicode_ucs4_index]:
+ table->encodingRecord[ms_ucs4_index];
+
CmapSubtable &subtable = format12_rec.subtable.serialize (&c, table);
+ if (cmap_subset_plan.has_unicode_ucs4 && cmap_subset_plan.has_ms_ucs4)
+ table->encodingRecord[ms_ucs4_index].subtable = (unsigned int) format12_rec.subtable;
subtable.u.format = 12;
CmapSubtableFormat12 &format12 = subtable.u.format12;
void _update_unicode_ranges (const hb_set_t *codepoints,
HBUINT32 ulUnicodeRange[4]) const
{
+ HBUINT32 newBits[4];
for (unsigned int i = 0; i < 4; i++)
- ulUnicodeRange[i] = 0;
+ newBits[i] = 0;
hb_codepoint_t cp = HB_SET_VALUE_INVALID;
while (codepoints->next (&cp)) {
unsigned int block = bit / 32;
unsigned int bit_in_block = bit % 32;
unsigned int mask = 1 << bit_in_block;
- ulUnicodeRange[block] = ulUnicodeRange[block] | mask;
+ newBits[block] = newBits[block] | mask;
}
if (cp >= 0x10000 && cp <= 0x110000)
{
/* the spec says that bit 57 ("Non Plane 0") implies that there's
at least one codepoint beyond the BMP; so I also include all
the non-BMP codepoints here */
- ulUnicodeRange[1] = ulUnicodeRange[1] | (1 << 25);
+ newBits[1] = newBits[1] | (1 << 25);
}
}
+
+ for (unsigned int i = 0; i < 4; i++)
+ ulUnicodeRange[i] = ulUnicodeRange[i] & newBits[i]; // set bits only if set in the original
}
static void find_min_and_max_codepoint (const hb_set_t *codepoints,
projects / platform / upstream / libHarfBuzzSharp.git / commitdiff