ref: ec95f9c9212e9bf9371471f845903bb0e895807d
dir: /src/sfnt/sfwoff2.h/
/****************************************************************************
*
* sfwoff2.h
*
* WOFFF2 format management (specification).
*
* Copyright (C) 2019-2021 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 SFWOFF2_H_
#define SFWOFF2_H_
#include <freetype/internal/sfnt.h>
#include <freetype/internal/ftobjs.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
/* Suggested maximum size for output. */
#define WOFF2_DEFAULT_MAX_SIZE 30 * 1024 * 1024
/* 98% of Google Fonts have no glyph above 5k bytes. */
#define WOFF2_DEFAULT_GLYPH_BUF 5120
/* Composite glyph flags. */
/* See `CompositeGlyph.java' in `sfntly' for full definitions. */
#define FLAG_ARG_1_AND_2_ARE_WORDS 1 << 0
#define FLAG_WE_HAVE_A_SCALE 1 << 3
#define FLAG_MORE_COMPONENTS 1 << 5
#define FLAG_WE_HAVE_AN_X_AND_Y_SCALE 1 << 6
#define FLAG_WE_HAVE_A_TWO_BY_TWO 1 << 7
#define FLAG_WE_HAVE_INSTRUCTIONS 1 << 8
/* Simple glyph flags */
#define GLYF_ON_CURVE 1 << 0
#define GLYF_X_SHORT 1 << 1
#define GLYF_Y_SHORT 1 << 2
#define GLYF_REPEAT 1 << 3
#define GLYF_THIS_X_IS_SAME 1 << 4
#define GLYF_THIS_Y_IS_SAME 1 << 5
/* Other constants */
#define CONTOUR_OFFSET_END_POINT 10
FT_LOCAL( FT_Error )
woff2_open_font( FT_Stream stream,
TT_Face face,
FT_Int* face_index,
FT_Long* num_faces );
FT_END_HEADER
#endif /* SFWOFF2_H_ */
/* END */