The Tor Browser: gfx/ots/src/hhea.cc@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.

     2 // Use of this source code is governed by a BSD-style license that can be

     3 // found in the LICENSE file.

     5 #include "hhea.h"

     7 #include "head.h"

     8 #include "maxp.h"

    10 // hhea - Horizontal Header

    11 // http://www.microsoft.com/typography/otspec/hhea.htm

    13 #define TABLE_NAME "hhea"

    15 namespace ots {

    17 bool ots_hhea_parse(OpenTypeFile *file, const uint8_t *data, size_t length) {

    18   Buffer table(data, length);

    19   OpenTypeHHEA *hhea = new OpenTypeHHEA;

    20   file->hhea = hhea;

    22   if (!table.ReadU32(&hhea->header.version)) {

    23     return OTS_FAILURE_MSG("Failed to read hhea version");

    24   }

    25   if (hhea->header.version >> 16 != 1) {

    26     return OTS_FAILURE_MSG("Bad hhea version of %d", hhea->header.version);

    27   }

    29   if (!ParseMetricsHeader(file, &table, &hhea->header)) {

    30     return OTS_FAILURE_MSG("Failed to parse horizontal metrics");

    31   }

    33   return true;

    34 }

    36 bool ots_hhea_should_serialise(OpenTypeFile *file) {

    37   return file->hhea != NULL;

    38 }

    40 bool ots_hhea_serialise(OTSStream *out, OpenTypeFile *file) {

    41   if (!SerialiseMetricsHeader(file, out, &file->hhea->header)) {

    42     return OTS_FAILURE_MSG("Failed to serialise horizontal metrics");

    43   }

    44   return true;

    45 }

    47 void ots_hhea_free(OpenTypeFile *file) {

    48   delete file->hhea;

    49 }

    51 }  // namespace ots

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