| // Copyright (c) 2009 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "hmtx.h" |
| |
| #include "hhea.h" |
| #include "maxp.h" |
| |
| // hmtx - Horizontal Metrics |
| // http://www.microsoft.com/typography/otspec/hmtx.htm |
| |
| #define TABLE_NAME "hmtx" |
| |
| namespace ots { |
| |
| bool ots_hmtx_parse(OpenTypeFile *file, const uint8_t *data, size_t length) { |
| Buffer table(data, length); |
| OpenTypeHMTX *hmtx = new OpenTypeHMTX; |
| file->hmtx = hmtx; |
| |
| if (!file->hhea || !file->maxp) { |
| return OTS_FAILURE_MSG("Missing hhea or maxp tables in font, needed by hmtx"); |
| } |
| |
| if (!ParseMetricsTable(file, &table, file->maxp->num_glyphs, |
| &file->hhea->header, &hmtx->metrics)) { |
| return OTS_FAILURE_MSG("Failed to parse hmtx metrics"); |
| } |
| |
| return true; |
| } |
| |
| bool ots_hmtx_should_serialise(OpenTypeFile *file) { |
| return file->hmtx != NULL; |
| } |
| |
| bool ots_hmtx_serialise(OTSStream *out, OpenTypeFile *file) { |
| if (!SerialiseMetricsTable(file, out, &file->hmtx->metrics)) { |
| return OTS_FAILURE_MSG("Failed to serialise htmx metrics"); |
| } |
| return true; |
| } |
| |
| void ots_hmtx_free(OpenTypeFile *file) { |
| delete file->hmtx; |
| } |
| |
| } // namespace ots |
| |
| #undef TABLE_NAME |