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comparison: gfx/ots/src/vmtx.cc
gfx/ots/src/vmtx.cc
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:6c957ab943db |
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| 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/typography/otspec/vmtx.htm | |
| 13 | |
| 14 #define TABLE_NAME "vmtx" | |
| 15 | |
| 16 namespace ots { | |
| 17 | |
| 18 bool ots_vmtx_parse(OpenTypeFile *file, const uint8_t *data, size_t length) { | |
| 19 Buffer table(data, length); | |
| 20 OpenTypeVMTX *vmtx = new OpenTypeVMTX; | |
| 21 file->vmtx = vmtx; | |
| 22 | |
| 23 if (!file->vhea || !file->maxp) { | |
| 24 return OTS_FAILURE_MSG("vhea or maxp table missing as needed by vmtx"); | |
| 25 } | |
| 26 | |
| 27 if (!ParseMetricsTable(file, &table, file->maxp->num_glyphs, | |
| 28 &file->vhea->header, &vmtx->metrics)) { | |
| 29 return OTS_FAILURE_MSG("Failed to parse vmtx metrics"); | |
| 30 } | |
| 31 | |
| 32 return true; | |
| 33 } | |
| 34 | |
| 35 bool ots_vmtx_should_serialise(OpenTypeFile *file) { | |
| 36 // vmtx should serialise when vhea and GSUB are preserved. | |
| 37 // See the comment in ots_vhea_should_serialise(). | |
| 38 return file->vmtx != NULL && file->vhea != NULL && | |
| 39 ots_gsub_should_serialise(file); | |
| 40 } | |
| 41 | |
| 42 bool ots_vmtx_serialise(OTSStream *out, OpenTypeFile *file) { | |
| 43 if (!SerialiseMetricsTable(file, out, &file->vmtx->metrics)) { | |
| 44 return OTS_FAILURE_MSG("Failed to write vmtx metrics"); | |
| 45 } | |
| 46 return true; | |
| 47 } | |
| 48 | |
| 49 void ots_vmtx_free(OpenTypeFile *file) { | |
| 50 delete file->vmtx; | |
| 51 } | |
| 52 | |
| 53 } // namespace ots | |
| 54 |
