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 ots_fpgm_parse(OpenTypeFile * file,const uint8_t * data,size_t length)12bool 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 ots_fpgm_should_serialise(OpenTypeFile * file)31bool 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 ots_fpgm_serialise(OTSStream * out,OpenTypeFile * file)36bool 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 ots_fpgm_free(OpenTypeFile * file)46void ots_fpgm_free(OpenTypeFile *file) { 47 delete file->fpgm; 48 } 49 50 } // namespace ots 51