From 0f8691a48869932cd3de5195f5211c25e4691b21 Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@wolfbeast.com>
Date: Thu, 14 Nov 2019 10:07:01 +0100
Subject: Issue #1288 - Part 4: Update the OpenType Sanitizer component to
 8.0.0

---
 gfx/ots/src/vhea.cc | 49 ++++++++++++++-----------------------------------
 1 file changed, 14 insertions(+), 35 deletions(-)

(limited to 'gfx/ots/src/vhea.cc')

diff --git a/gfx/ots/src/vhea.cc b/gfx/ots/src/vhea.cc
index e721b971e..e44bedf20 100644
--- a/gfx/ots/src/vhea.cc
+++ b/gfx/ots/src/vhea.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011-2017 The OTS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -10,51 +10,30 @@
 // vhea - Vertical Header Table
 // http://www.microsoft.com/typography/otspec/vhea.htm
 
-#define TABLE_NAME "vhea"
-
 namespace ots {
 
-bool ots_vhea_parse(Font *font, const uint8_t *data, size_t length) {
+bool OpenTypeVHEA::Parse(const uint8_t *data, size_t length) {
   Buffer table(data, length);
-  OpenTypeVHEA *vhea = new OpenTypeVHEA;
-  font->vhea = vhea;
 
-  if (!table.ReadU32(&vhea->header.version)) {
-    return OTS_FAILURE_MSG("Failed to read version");
-  }
-  if (vhea->header.version != 0x00010000 &&
-      vhea->header.version != 0x00011000) {
-    return OTS_FAILURE_MSG("Bad vhea version %x", vhea->header.version);
+  if (!table.ReadU32(&this->version)) {
+    return Error("Failed to read version");
   }
-
-  if (!ParseMetricsHeader(font, &table, &vhea->header)) {
-    return OTS_FAILURE_MSG("Failed to parse metrics in vhea");
+  if (this->version != 0x00010000 &&
+      this->version != 0x00011000) {
+    return Error("Unsupported table version: 0x%x", this->version);
   }
 
-  return true;
+  return OpenTypeMetricsHeader::Parse(data, length);
 }
 
-bool ots_vhea_should_serialise(Font *font) {
-  // vhea should'nt serialise when vmtx doesn't exist.
-  return font->vhea != NULL && font->vmtx != NULL;
+bool OpenTypeVHEA::Serialize(OTSStream *out) {
+  return OpenTypeMetricsHeader::Serialize(out);
 }
 
-bool ots_vhea_serialise(OTSStream *out, Font *font) {
-  if (!SerialiseMetricsHeader(font, out, &font->vhea->header)) {
-    return OTS_FAILURE_MSG("Failed to write vhea metrics");
-  }
-  return true;
-}
-
-void ots_vhea_reuse(Font *font, Font *other) {
-  font->vhea = other->vhea;
-  font->vhea_reused = true;
-}
-
-void ots_vhea_free(Font *font) {
-  delete font->vhea;
+bool OpenTypeVHEA::ShouldSerialize() {
+  return OpenTypeMetricsHeader::ShouldSerialize() &&
+         // vhea shouldn't serialise when vmtx doesn't exist.
+         GetFont()->GetTable(OTS_TAG_VMTX) != NULL;
 }
 
 }  // namespace ots
-
-#undef TABLE_NAME
-- 
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