diff options
Diffstat (limited to 'gfx/ots/src/fpgm.cc')
-rw-r--r-- | gfx/ots/src/fpgm.cc | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/gfx/ots/src/fpgm.cc b/gfx/ots/src/fpgm.cc new file mode 100644 index 000000000..faa9a2392 --- /dev/null +++ b/gfx/ots/src/fpgm.cc @@ -0,0 +1,59 @@ +// 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 "fpgm.h" + +// fpgm - Font Program +// http://www.microsoft.com/typography/otspec/fpgm.htm + +#define TABLE_NAME "fpgm" + +namespace ots { + +bool ots_fpgm_parse(Font *font, const uint8_t *data, size_t length) { + Buffer table(data, length); + + OpenTypeFPGM *fpgm = new OpenTypeFPGM; + font->fpgm = fpgm; + + if (length >= 128 * 1024u) { + return OTS_FAILURE_MSG("length (%ld) > 120", length); // almost all fpgm tables are less than 5k bytes. + } + + if (!table.Skip(length)) { + return OTS_FAILURE_MSG("Bad fpgm length"); + } + + fpgm->data = data; + fpgm->length = length; + return true; +} + +bool ots_fpgm_should_serialise(Font *font) { + if (!font->glyf) return false; // this table is not for CFF fonts. + return font->fpgm != NULL; +} + +bool ots_fpgm_serialise(OTSStream *out, Font *font) { + const OpenTypeFPGM *fpgm = font->fpgm; + + if (!out->Write(fpgm->data, fpgm->length)) { + return OTS_FAILURE_MSG("Failed to write fpgm"); + } + + return true; +} + +void ots_fpgm_reuse(Font *font, Font *other) { + font->fpgm = other->fpgm; + font->fpgm_reused = true; +} + +void ots_fpgm_free(Font *font) { + delete font->fpgm; +} + +} // namespace ots + +#undef TABLE_NAME |