[sfnt] Add WOFF2 constants.

Add constants required for WOFF2, and known table tags as defined in the
specification. See

  https://www.w3.org/TR/WOFF2/#table_dir_format

for details.

* src/sfnt/woff2tags.c, src/sfnt/woff2tags.h: New files.
This commit is contained in:
Nikhil Ramakrishnan 2019-06-16 17:55:59 +05:30
parent 1b7f95bf70
commit f1083eae5e
2 changed files with 134 additions and 0 deletions

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src/sfnt/woff2tags.c Normal file
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/****************************************************************************
*
* woff2tags.c
*
* WOFF2 Font table tags (base).
*
* Copyright (C) 2019 by
* Nikhil Ramakrishnan, David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#include <ft2build.h>
#include "sfwoff.h"
#include FT_TRUETYPE_TAGS_H
/* Known table tags in the order given in WOFF2 specification. */
const FT_ULong KnownTags[63] = {
FT_MAKE_TAG('c', 'm', 'a', 'p'), /* 0 */
FT_MAKE_TAG('h', 'e', 'a', 'd'), /* 1 */
FT_MAKE_TAG('h', 'h', 'e', 'a'), /* 2 */
FT_MAKE_TAG('h', 'm', 't', 'x'), /* 3 */
FT_MAKE_TAG('m', 'a', 'x', 'p'), /* 4 */
FT_MAKE_TAG('n', 'a', 'm', 'e'), /* 5 */
FT_MAKE_TAG('O', 'S', '/', '2'), /* 6 */
FT_MAKE_TAG('p', 'o', 's', 't'), /* 7 */
FT_MAKE_TAG('c', 'v', 't', ' '), /* 8 */
FT_MAKE_TAG('f', 'p', 'g', 'm'), /* 9 */
FT_MAKE_TAG('g', 'l', 'y', 'f'), /* 10 */
FT_MAKE_TAG('l', 'o', 'c', 'a'), /* 11 */
FT_MAKE_TAG('p', 'r', 'e', 'p'), /* 12 */
FT_MAKE_TAG('C', 'F', 'F', ' '), /* 13 */
FT_MAKE_TAG('V', 'O', 'R', 'G'), /* 14 */
FT_MAKE_TAG('E', 'B', 'D', 'T'), /* 15 */
FT_MAKE_TAG('E', 'B', 'L', 'C'), /* 16 */
FT_MAKE_TAG('g', 'a', 's', 'p'), /* 17 */
FT_MAKE_TAG('h', 'd', 'm', 'x'), /* 18 */
FT_MAKE_TAG('k', 'e', 'r', 'n'), /* 19 */
FT_MAKE_TAG('L', 'T', 'S', 'H'), /* 20 */
FT_MAKE_TAG('P', 'C', 'L', 'T'), /* 21 */
FT_MAKE_TAG('V', 'D', 'M', 'X'), /* 22 */
FT_MAKE_TAG('v', 'h', 'e', 'a'), /* 23 */
FT_MAKE_TAG('v', 'm', 't', 'x'), /* 24 */
FT_MAKE_TAG('B', 'A', 'S', 'E'), /* 25 */
FT_MAKE_TAG('G', 'D', 'E', 'F'), /* 26 */
FT_MAKE_TAG('G', 'P', 'O', 'S'), /* 27 */
FT_MAKE_TAG('G', 'S', 'U', 'B'), /* 28 */
FT_MAKE_TAG('E', 'B', 'S', 'C'), /* 29 */
FT_MAKE_TAG('J', 'S', 'T', 'F'), /* 30 */
FT_MAKE_TAG('M', 'A', 'T', 'H'), /* 31 */
FT_MAKE_TAG('C', 'B', 'D', 'T'), /* 32 */
FT_MAKE_TAG('C', 'B', 'L', 'C'), /* 33 */
FT_MAKE_TAG('C', 'O', 'L', 'R'), /* 34 */
FT_MAKE_TAG('C', 'P', 'A', 'L'), /* 35 */
FT_MAKE_TAG('S', 'V', 'G', ' '), /* 36 */
FT_MAKE_TAG('s', 'b', 'i', 'x'), /* 37 */
FT_MAKE_TAG('a', 'c', 'n', 't'), /* 38 */
FT_MAKE_TAG('a', 'v', 'a', 'r'), /* 39 */
FT_MAKE_TAG('b', 'd', 'a', 't'), /* 40 */
FT_MAKE_TAG('b', 'l', 'o', 'c'), /* 41 */
FT_MAKE_TAG('b', 's', 'l', 'n'), /* 42 */
FT_MAKE_TAG('c', 'v', 'a', 'r'), /* 43 */
FT_MAKE_TAG('f', 'd', 's', 'c'), /* 44 */
FT_MAKE_TAG('f', 'e', 'a', 't'), /* 45 */
FT_MAKE_TAG('f', 'm', 't', 'x'), /* 46 */
FT_MAKE_TAG('f', 'v', 'a', 'r'), /* 47 */
FT_MAKE_TAG('g', 'v', 'a', 'r'), /* 48 */
FT_MAKE_TAG('h', 's', 't', 'y'), /* 49 */
FT_MAKE_TAG('j', 'u', 's', 't'), /* 50 */
FT_MAKE_TAG('l', 'c', 'a', 'r'), /* 51 */
FT_MAKE_TAG('m', 'o', 'r', 't'), /* 52 */
FT_MAKE_TAG('m', 'o', 'r', 'x'), /* 53 */
FT_MAKE_TAG('o', 'p', 'b', 'd'), /* 54 */
FT_MAKE_TAG('p', 'r', 'o', 'p'), /* 55 */
FT_MAKE_TAG('t', 'r', 'a', 'k'), /* 56 */
FT_MAKE_TAG('Z', 'a', 'p', 'f'), /* 57 */
FT_MAKE_TAG('S', 'i', 'l', 'f'), /* 58 */
FT_MAKE_TAG('G', 'l', 'a', 't'), /* 59 */
FT_MAKE_TAG('G', 'l', 'o', 'c'), /* 60 */
FT_MAKE_TAG('F', 'e', 'a', 't'), /* 61 */
FT_MAKE_TAG('S', 'i', 'l', 'l'), /* 62 */
};
/* END */

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/****************************************************************************
*
* woff2tags.h
*
* WOFFF2 Font table tags (specification).
*
* Copyright (C) 1996-2019 by
* Nikhil Ramakrishnan, David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef WOFF2TAGS_H
#define WOFF2TAGS_H
#include <ft2build.h>
#include FT_INTERNAL_OBJECTS_H
FT_BEGIN_HEADER
/* Leave the first byte open to store flag_byte. */
#define WOFF2_FLAGS_TRANSFORM 1 << 8
#define WOFF2_SFNT_HEADER_SIZE 12
#define WOFF2_SFNT_ENTRY_SIZE 16
/* Known table tags. */
extern const FT_ULong KnownTags[];
FT_END_HEADER
#endif /* WOFF2TAGS_H */
/* END */