michael@0: // Copyright (c) 2009 The Chromium Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: 
michael@0: #include "fpgm.h"
michael@0: 
michael@0: // fpgm - Font Program
michael@0: // http://www.microsoft.com/typography/otspec/fpgm.htm
michael@0: 
michael@0: #define TABLE_NAME "fpgm"
michael@0: 
michael@0: namespace ots {
michael@0: 
michael@0: bool ots_fpgm_parse(OpenTypeFile *file, const uint8_t *data, size_t length) {
michael@0:   Buffer table(data, length);
michael@0: 
michael@0:   OpenTypeFPGM *fpgm = new OpenTypeFPGM;
michael@0:   file->fpgm = fpgm;
michael@0: 
michael@0:   if (length >= 128 * 1024u) {
michael@0:     return OTS_FAILURE_MSG("length (%ld) > 120", length);  // almost all fpgm tables are less than 5k bytes.
michael@0:   }
michael@0: 
michael@0:   if (!table.Skip(length)) {
michael@0:     return OTS_FAILURE_MSG("Bad fpgm length");
michael@0:   }
michael@0: 
michael@0:   fpgm->data = data;
michael@0:   fpgm->length = length;
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: bool ots_fpgm_should_serialise(OpenTypeFile *file) {
michael@0:   if (!file->glyf) return false;  // this table is not for CFF fonts.
michael@0:   return g_transcode_hints && file->fpgm;
michael@0: }
michael@0: 
michael@0: bool ots_fpgm_serialise(OTSStream *out, OpenTypeFile *file) {
michael@0:   const OpenTypeFPGM *fpgm = file->fpgm;
michael@0: 
michael@0:   if (!out->Write(fpgm->data, fpgm->length)) {
michael@0:     return OTS_FAILURE_MSG("Failed to write fpgm");
michael@0:   }
michael@0: 
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: void ots_fpgm_free(OpenTypeFile *file) {
michael@0:   delete file->fpgm;
michael@0: }
michael@0: 
michael@0: }  // namespace ots