Home | History | Annotate | Download | only in src 
      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.
      4 
      5 #include "hmtx.h"
      6 
      7 #include "hhea.h"
      8 #include "maxp.h"
      9 
     10 // hmtx - Horizontal Metrics
     11 // http://www.microsoft.com/opentype/otspec/hmtx.htm
     12 
     13 namespace ots {
     14 
     15 bool ots_hmtx_parse(OpenTypeFile *file, const uint8_t *data, size_t length) {
     16   Buffer table(data, length);
     17   OpenTypeHMTX *hmtx = new OpenTypeHMTX;
     18   file->hmtx = hmtx;
     19 
     20   if (!file->hhea || !file->maxp) {
     21     return OTS_FAILURE();
     22   }
     23 
     24   if (!ParseMetricsTable(&table, file->maxp->num_glyphs,
     25                          &file->hhea->header, &hmtx->metrics)) {
     26     return OTS_FAILURE();
     27   }
     28 
     29   return true;
     30 }
     31 
     32 bool ots_hmtx_should_serialise(OpenTypeFile *file) {
     33   return file->hmtx != NULL;
     34 }
     35 
     36 bool ots_hmtx_serialise(OTSStream *out, OpenTypeFile *file) {
     37   if (!SerialiseMetricsTable(out, &file->hmtx->metrics)) {
     38     return OTS_FAILURE();
     39   }
     40   return true;
     41 }
     42 
     43 void ots_hmtx_free(OpenTypeFile *file) {
     44   delete file->hmtx;
     45 }
     46 
     47 }  // namespace ots
     48