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| 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 "fpgm.h" |
| 6 |
| 7 // fpgm - Font Program |
| 8 // http://www.microsoft.com/typography/otspec/fpgm.htm |
| 9 |
| 10 #define TABLE_NAME "fpgm" |
| 11 |
| 12 namespace ots { |
| 13 |
| 14 bool ots_fpgm_parse(OpenTypeFile *file, const uint8_t *data, size_t length) { |
| 15 Buffer table(data, length); |
| 16 |
| 17 OpenTypeFPGM *fpgm = new OpenTypeFPGM; |
| 18 file->fpgm = fpgm; |
| 19 |
| 20 if (length >= 128 * 1024u) { |
| 21 return OTS_FAILURE_MSG("length (%ld) > 120", length); // almost all fpgm ta
bles are less than 5k bytes. |
| 22 } |
| 23 |
| 24 if (!table.Skip(length)) { |
| 25 return OTS_FAILURE_MSG("Bad fpgm length"); |
| 26 } |
| 27 |
| 28 fpgm->data = data; |
| 29 fpgm->length = length; |
| 30 return true; |
| 31 } |
| 32 |
| 33 bool ots_fpgm_should_serialise(OpenTypeFile *file) { |
| 34 if (!file->glyf) return false; // this table is not for CFF fonts. |
| 35 return file->fpgm != NULL; |
| 36 } |
| 37 |
| 38 bool ots_fpgm_serialise(OTSStream *out, OpenTypeFile *file) { |
| 39 const OpenTypeFPGM *fpgm = file->fpgm; |
| 40 |
| 41 if (!out->Write(fpgm->data, fpgm->length)) { |
| 42 return OTS_FAILURE_MSG("Failed to write fpgm"); |
| 43 } |
| 44 |
| 45 return true; |
| 46 } |
| 47 |
| 48 void ots_fpgm_free(OpenTypeFile *file) { |
| 49 delete file->fpgm; |
| 50 } |
| 51 |
| 52 } // namespace ots |
| 53 |
| 54 #undef TABLE_NAME |
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