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/src/compiler/android-ndk/jni/freetype/include/freetype/ftlzw.h

http://ftk.googlecode.com/
C++ Header | 99 lines | 15 code | 14 blank | 70 comment | 0 complexity | 52a021518cff70deaf1d14b4cbad0eb7 MD5 | raw file
 1/***************************************************************************/
 2/*                                                                         */
 3/*  ftlzw.h                                                                */
 4/*                                                                         */
 5/*    LZW-compressed stream support.                                       */
 6/*                                                                         */
 7/*  Copyright 2004, 2006 by                                                */
 8/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 9/*                                                                         */
10/*  This file is part of the FreeType project, and may only be used,       */
11/*  modified, and distributed under the terms of the FreeType project      */
12/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
13/*  this file you indicate that you have read the license and              */
14/*  understand and accept it fully.                                        */
15/*                                                                         */
16/***************************************************************************/
17
18
19#ifndef __FTLZW_H__
20#define __FTLZW_H__
21
22#include <ft2build.h>
23#include FT_FREETYPE_H
24
25#ifdef FREETYPE_H
26#error "freetype.h of FreeType 1 has been loaded!"
27#error "Please fix the directory search order for header files"
28#error "so that freetype.h of FreeType 2 is found first."
29#endif
30
31
32FT_BEGIN_HEADER
33
34  /*************************************************************************/
35  /*                                                                       */
36  /* <Section>                                                             */
37  /*    lzw                                                                */
38  /*                                                                       */
39  /* <Title>                                                               */
40  /*    LZW Streams                                                        */
41  /*                                                                       */
42  /* <Abstract>                                                            */
43  /*    Using LZW-compressed font files.                                   */
44  /*                                                                       */
45  /* <Description>                                                         */
46  /*    This section contains the declaration of LZW-specific functions.   */
47  /*                                                                       */
48  /*************************************************************************/
49
50 /************************************************************************
51  *
52  * @function:
53  *   FT_Stream_OpenLZW
54  *
55  * @description:
56  *   Open a new stream to parse LZW-compressed font files.  This is
57  *   mainly used to support the compressed `*.pcf.Z' fonts that come
58  *   with XFree86.
59  *
60  * @input:
61  *   stream :: The target embedding stream.
62  *
63  *   source :: The source stream.
64  *
65  * @return:
66  *   FreeType error code.  0~means success.
67  *
68  * @note:
69  *   The source stream must be opened _before_ calling this function.
70  *
71  *   Calling the internal function `FT_Stream_Close' on the new stream will
72  *   *not* call `FT_Stream_Close' on the source stream.  None of the stream
73  *   objects will be released to the heap.
74  *
75  *   The stream implementation is very basic and resets the decompression
76  *   process each time seeking backwards is needed within the stream
77  *
78  *   In certain builds of the library, LZW compression recognition is
79  *   automatically handled when calling @FT_New_Face or @FT_Open_Face.
80  *   This means that if no font driver is capable of handling the raw
81  *   compressed file, the library will try to open a LZW stream from it
82  *   and re-open the face with it.
83  *
84  *   This function may return `FT_Err_Unimplemented_Feature' if your build
85  *   of FreeType was not compiled with LZW support.
86  */
87  FT_EXPORT( FT_Error )
88  FT_Stream_OpenLZW( FT_Stream  stream,
89                     FT_Stream  source );
90
91 /* */
92
93
94FT_END_HEADER
95
96#endif /* __FTLZW_H__ */
97
98
99/* END */