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https://github.com/roytam1/palemoon27.git
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trav90
60 lines
1.3 KiB
C++
60 lines
1.3 KiB
C++
// Copyright (c) 2009 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "prep.h"
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// prep - Control Value Program
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// http://www.microsoft.com/typography/otspec/prep.htm
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#define TABLE_NAME "prep"
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namespace ots {
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bool ots_prep_parse(Font *font, const uint8_t *data, size_t length) {
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Buffer table(data, length);
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OpenTypePREP *prep = new OpenTypePREP;
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font->prep = prep;
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if (length >= 128 * 1024u) {
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return OTS_FAILURE_MSG("table length %ld > 120K", length); // almost all prep tables are less than 9k bytes.
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}
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if (!table.Skip(length)) {
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return OTS_FAILURE_MSG("Failed to read table of length %ld", length);
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}
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prep->data = data;
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prep->length = length;
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return true;
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}
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bool ots_prep_should_serialise(Font *font) {
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if (!font->glyf) return false; // this table is not for CFF fonts.
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return font->prep != NULL;
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}
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bool ots_prep_serialise(OTSStream *out, Font *font) {
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const OpenTypePREP *prep = font->prep;
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if (!out->Write(prep->data, prep->length)) {
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return OTS_FAILURE_MSG("Failed to write table length");
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}
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return true;
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}
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void ots_prep_reuse(Font *font, Font *other) {
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font->prep = other->prep;
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font->prep_reused = true;
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}
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void ots_prep_free(Font *font) {
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delete font->prep;
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}
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} // namespace ots
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#undef TABLE_NAME
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