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55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "vmtx.h"
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#include "gsub.h"
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#include "maxp.h"
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#include "vhea.h"
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// vmtx - Vertical Metrics Table
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// http://www.microsoft.com/typography/otspec/vmtx.htm
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#define TABLE_NAME "vmtx"
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namespace ots {
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bool ots_vmtx_parse(OpenTypeFile *file, const uint8_t *data, size_t length) {
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Buffer table(data, length);
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OpenTypeVMTX *vmtx = new OpenTypeVMTX;
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file->vmtx = vmtx;
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if (!file->vhea || !file->maxp) {
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return OTS_FAILURE_MSG("vhea or maxp table missing as needed by vmtx");
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}
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if (!ParseMetricsTable(file, &table, file->maxp->num_glyphs,
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&file->vhea->header, &vmtx->metrics)) {
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return OTS_FAILURE_MSG("Failed to parse vmtx metrics");
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}
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return true;
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}
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bool ots_vmtx_should_serialise(OpenTypeFile *file) {
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// vmtx should serialise when vhea and GSUB are preserved.
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// See the comment in ots_vhea_should_serialise().
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return file->vmtx != NULL && file->vhea != NULL &&
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ots_gsub_should_serialise(file);
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}
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bool ots_vmtx_serialise(OTSStream *out, OpenTypeFile *file) {
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if (!SerialiseMetricsTable(file, out, &file->vmtx->metrics)) {
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return OTS_FAILURE_MSG("Failed to write vmtx metrics");
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}
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return true;
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}
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void ots_vmtx_free(OpenTypeFile *file) {
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delete file->vmtx;
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}
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} // namespace ots
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