yusukes@chromium.org | d257d18 | 2009-11-04 04:56:32 +0000 | [diff] [blame] | 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/opentype/otspec/fpgm.htm |
| 9 | |
| 10 | namespace ots { |
| 11 | |
| 12 | bool ots_fpgm_parse(OpenTypeFile *file, const uint8_t *data, size_t length) { |
| 13 | Buffer table(data, length); |
| 14 | |
| 15 | OpenTypeFPGM *fpgm = new OpenTypeFPGM; |
| 16 | file->fpgm = fpgm; |
| 17 | |
| 18 | if (length >= 128 * 1024u) { |
| 19 | return OTS_FAILURE(); // almost all fpgm tables are less than 5k bytes. |
| 20 | } |
| 21 | |
| 22 | if (!table.Skip(length)) { |
| 23 | return OTS_FAILURE(); |
| 24 | } |
| 25 | |
| 26 | fpgm->data = data; |
| 27 | fpgm->length = length; |
| 28 | return true; |
| 29 | } |
| 30 | |
| 31 | bool ots_fpgm_should_serialise(OpenTypeFile *file) { |
| 32 | if (!file->glyf) return false; // this table is not for CFF fonts. |
| 33 | return g_transcode_hints && file->fpgm; |
| 34 | } |
| 35 | |
| 36 | bool ots_fpgm_serialise(OTSStream *out, OpenTypeFile *file) { |
| 37 | const OpenTypeFPGM *fpgm = file->fpgm; |
| 38 | |
| 39 | if (!out->Write(fpgm->data, fpgm->length)) { |
| 40 | return OTS_FAILURE(); |
| 41 | } |
| 42 | |
| 43 | return true; |
| 44 | } |
| 45 | |
| 46 | void ots_fpgm_free(OpenTypeFile *file) { |
| 47 | delete file->fpgm; |
| 48 | } |
| 49 | |
| 50 | } // namespace ots |