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author | yusukes@chromium.org <yusukes@chromium.org@a4e77c2c-9104-11de-800e-5b313e0d2bf3> | 2009-11-04 04:56:32 +0000 |
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committer | yusukes@chromium.org <yusukes@chromium.org@a4e77c2c-9104-11de-800e-5b313e0d2bf3> | 2009-11-04 04:56:32 +0000 |
commit | d257d186ae2a08042a412824678f98241a1a4f3c (patch) | |
tree | 54b0cf89c22d1a1de3d7866f01d8a98dcbe8565f /src/cvt.cc | |
parent | 11e88a133d0bc47723c2e9e06df471e2f60bb350 (diff) | |
download | ots-d257d186ae2a08042a412824678f98241a1a4f3c.tar.gz |
initial commit.
git-svn-id: http://ots.googlecode.com/svn/trunk@2 a4e77c2c-9104-11de-800e-5b313e0d2bf3
Diffstat (limited to 'src/cvt.cc')
-rw-r--r-- | src/cvt.cc | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/cvt.cc b/src/cvt.cc new file mode 100644 index 0000000..3403a87 --- /dev/null +++ b/src/cvt.cc @@ -0,0 +1,56 @@ +// Copyright (c) 2009 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "cvt.h" + +// cvt - Control Value Table +// http://www.microsoft.com/opentype/otspec/cvt.htm + +namespace ots { + +bool ots_cvt_parse(OpenTypeFile *file, const uint8_t *data, size_t length) { + Buffer table(data, length); + + OpenTypeCVT *cvt = new OpenTypeCVT; + file->cvt = cvt; + + if (length >= 128 * 1024u) { + return OTS_FAILURE(); // almost all cvt tables are less than 4k bytes. + } + + if (length % 2 != 0) { + return OTS_FAILURE(); + } + + if (!table.Skip(length)) { + return OTS_FAILURE(); + } + + cvt->data = data; + cvt->length = length; + return true; +} + +bool ots_cvt_should_serialise(OpenTypeFile *file) { + if (!file->glyf) { + return false; // this table is not for CFF fonts. + } + return g_transcode_hints && file->cvt; +} + +bool ots_cvt_serialise(OTSStream *out, OpenTypeFile *file) { + const OpenTypeCVT *cvt = file->cvt; + + if (!out->Write(cvt->data, cvt->length)) { + return OTS_FAILURE(); + } + + return true; +} + +void ots_cvt_free(OpenTypeFile *file) { + delete file->cvt; +} + +} // namespace ots |