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86 lines
3.7 KiB
C++
86 lines
3.7 KiB
C++
/*
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This file is part of the KDE libraries
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The Original Code is WOFF font packaging code.
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Copyright (C) 2009 Mozilla Corporation
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Contributor(s):
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Jonathan Kew <jfkthame@gmail.com>
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Germain Garand <germain@ebooksfrance.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef WOFF_H_
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#define WOFF_H_
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/* API for the decoding of WOFF (Web Open Font Format) font files */
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typedef enum {
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/* Success */
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eWOFF_ok = 0,
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/* Errors: no valid result returned */
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eWOFF_out_of_memory = 1, /* malloc or realloc failed */
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eWOFF_invalid = 2, /* invalid input file (e.g., bad offset) */
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eWOFF_compression_failure = 3, /* error in zlib call */
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eWOFF_bad_signature = 4, /* unrecognized file signature */
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eWOFF_buffer_too_small = 5, /* the provided buffer is too small */
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eWOFF_bad_parameter = 6, /* bad parameter (e.g., null source ptr) */
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eWOFF_illegal_order = 7, /* improperly ordered chunks in WOFF font */
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/* Warnings: call succeeded but something odd was noticed.
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Multiple warnings may be OR'd together. */
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eWOFF_warn_unknown_version = 0x0100, /* unrecognized version of sfnt,
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not standard TrueType or CFF */
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eWOFF_warn_checksum_mismatch = 0x0200, /* bad checksum, use with caution;
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any DSIG will be invalid */
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eWOFF_warn_misaligned_table = 0x0400, /* table not long-aligned; fixing,
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but DSIG will be invalid */
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eWOFF_warn_trailing_data = 0x0800, /* trailing junk discarded,
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any DSIG may be invalid */
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eWOFF_warn_unpadded_table = 0x1000, /* sfnt not correctly padded,
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any DSIG may be invalid */
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eWOFF_warn_removed_DSIG = 0x2000 /* removed digital signature
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while fixing checksum errors */
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} WOFFStatus;
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/* Note: status parameters must be initialized to eWOFF_ok before calling
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WOFF functions. If the status parameter contains an error code,
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functions will return immediately. */
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#define WOFF_SUCCESS(status) (((status) & 0xff) == eWOFF_ok)
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#define WOFF_FAILURE(status) (!WOFF_SUCCESS(status))
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#define WOFF_WARNING(status) ((status) & ~0xff)
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namespace WOFF {
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/*****************************************************************************
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* Returns the size of buffer needed to decode the font (or zero on error).
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*/
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int getDecodedSize(const char* woffData, int woffLen, int* pStatus);
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/*****************************************************************************
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* Decodes WOFF font to a caller-supplied buffer of size bufferLen.
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* Returns the actual size of the decoded sfnt data in pActualSfntLen
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* (must be <= bufferLen, otherwise an error will be returned).
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*/
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void decodeToBuffer(const char* woffData, int woffLen, char * sfntData, int bufferLen,
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int* pActualSfntLen, int* pStatus);
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}
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#endif
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