wuggy/Dactyloidae
wuggy/Dactyloidae
1
0
Fork 0
mirror of https://repo.dactyloidae.xyz/Dactyloidae/UXP.git synced 2026-10-12 18:27:32 +09:00
Code Issues Projects Releases Packages Wiki Activity

import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

Browse source
This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
150858 changed files with 23884658 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

111
gfx/ots/src/vorg.cc Normal file
View file

@ -0,0 +1,111 @@
// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "vorg.h"
#include <vector>
// VORG - Vertical Origin Table
// http://www.microsoft.com/typography/otspec/vorg.htm
#define TABLE_NAME "VORG"
#define DROP_THIS_TABLE(...) \
do { \
OTS_FAILURE_MSG_(font->file, TABLE_NAME ": " __VA_ARGS__); \
OTS_FAILURE_MSG("Table discarded"); \
delete font->vorg; \
font->vorg = 0; \
} while (0)
namespace ots {
bool ots_vorg_parse(Font *font, const uint8_t *data, size_t length) {
Buffer table(data, length);
font->vorg = new OpenTypeVORG;
OpenTypeVORG * const vorg = font->vorg;
uint16_t num_recs;
if (!table.ReadU16(&vorg->major_version) ||
!table.ReadU16(&vorg->minor_version) ||
!table.ReadS16(&vorg->default_vert_origin_y) ||
!table.ReadU16(&num_recs)) {
return OTS_FAILURE_MSG("Failed to read header");
}
if (vorg->major_version != 1) {
DROP_THIS_TABLE("bad major version: %u", vorg->major_version);
return true;
}
if (vorg->minor_version != 0) {
DROP_THIS_TABLE("bad minor version: %u", vorg->minor_version);
return true;
}
// num_recs might be zero (e.g., DFHSMinchoPro5-W3-Demo.otf).
if (!num_recs) {
return true;
}
uint16_t last_glyph_index = 0;
vorg->metrics.reserve(num_recs);
for (unsigned i = 0; i < num_recs; ++i) {
OpenTypeVORGMetrics rec;
if (!table.ReadU16(&rec.glyph_index) ||
!table.ReadS16(&rec.vert_origin_y)) {
return OTS_FAILURE_MSG("Failed to read record %d", i);
}
if ((i != 0) && (rec.glyph_index <= last_glyph_index)) {
DROP_THIS_TABLE("the table is not sorted");
return true;
}
last_glyph_index = rec.glyph_index;
vorg->metrics.push_back(rec);
}
return true;
}
bool ots_vorg_should_serialise(Font *font) {
if (!font->cff) return false; // this table is not for fonts with TT glyphs.
return font->vorg != NULL;
}
bool ots_vorg_serialise(OTSStream *out, Font *font) {
OpenTypeVORG * const vorg = font->vorg;
const uint16_t num_metrics = static_cast<uint16_t>(vorg->metrics.size());
if (num_metrics != vorg->metrics.size() ||
!out->WriteU16(vorg->major_version) ||
!out->WriteU16(vorg->minor_version) ||
!out->WriteS16(vorg->default_vert_origin_y) ||
!out->WriteU16(num_metrics)) {
return OTS_FAILURE_MSG("Failed to write table header");
}
for (uint16_t i = 0; i < num_metrics; ++i) {
const OpenTypeVORGMetrics& rec = vorg->metrics[i];
if (!out->WriteU16(rec.glyph_index) ||
!out->WriteS16(rec.vert_origin_y)) {
return OTS_FAILURE_MSG("Failed to write record %d", i);
}
}
return true;
}
void ots_vorg_reuse(Font *font, Font *other) {
font->vorg = other->vorg;
font->vorg_reused = true;
}
void ots_vorg_free(Font *font) {
delete font->vorg;
}
} // namespace ots
#undef TABLE_NAME
#undef DROP_THIS_TABLE