1// Copyright (c) 2011 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. 4 5#include "vmtx.h" 6 7#include "gsub.h" 8#include "maxp.h" 9#include "vhea.h" 10 11// vmtx - Vertical Metrics Table 12// http://www.microsoft.com/opentype/otspec/vmtx.htm 13 14namespace ots { 15 16bool ots_vmtx_parse(OpenTypeFile *file, const uint8_t *data, size_t length) { 17 Buffer table(data, length); 18 OpenTypeVMTX *vmtx = new OpenTypeVMTX; 19 file->vmtx = vmtx; 20 21 if (!file->vhea || !file->maxp) { 22 return OTS_FAILURE(); 23 } 24 25 if (!ParseMetricsTable(&table, file->maxp->num_glyphs, 26 &file->vhea->header, &vmtx->metrics)) { 27 return OTS_FAILURE(); 28 } 29 30 return true; 31} 32 33bool ots_vmtx_should_serialise(OpenTypeFile *file) { 34 // vmtx should serialise when vhea and GSUB are preserved. 35 // See the comment in ots_vhea_should_serialise(). 36 return file->vmtx != NULL && file->vhea != NULL && 37 ots_gsub_should_serialise(file); 38} 39 40bool ots_vmtx_serialise(OTSStream *out, OpenTypeFile *file) { 41 if (!SerialiseMetricsTable(out, &file->vmtx->metrics)) { 42 return OTS_FAILURE(); 43 } 44 return true; 45} 46 47void ots_vmtx_free(OpenTypeFile *file) { 48 delete file->vmtx; 49} 50 51} // namespace ots 52 53