Visualization Library 2.0.0-b5

A lightweight C++ OpenGL middleware for 2D/3D graphics

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ftgzip.h
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1 /***************************************************************************/
2 /* */
3 /* ftgzip.h */
4 /* */
5 /* Gzip-compressed stream support. */
6 /* */
7 /* Copyright 2002, 2003, 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 __FTGZIP_H__
20 #define __FTGZIP_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 
32 FT_BEGIN_HEADER
33 
34  /*************************************************************************/
35  /* */
36  /* <Section> */
37  /* gzip */
38  /* */
39  /* <Title> */
40  /* GZIP Streams */
41  /* */
42  /* <Abstract> */
43  /* Using gzip-compressed font files. */
44  /* */
45  /* <Description> */
46  /* This section contains the declaration of Gzip-specific functions. */
47  /* */
48  /*************************************************************************/
49 
50 
51  /************************************************************************
52  *
53  * @function:
54  * FT_Stream_OpenGzip
55  *
56  * @description:
57  * Open a new stream to parse gzip-compressed font files. This is
58  * mainly used to support the compressed `*.pcf.gz' fonts that come
59  * with XFree86.
60  *
61  * @input:
62  * stream ::
63  * The target embedding stream.
64  *
65  * source ::
66  * The source stream.
67  *
68  * @return:
69  * FreeType error code. 0~means success.
70  *
71  * @note:
72  * The source stream must be opened _before_ calling this function.
73  *
74  * Calling the internal function `FT_Stream_Close' on the new stream will
75  * *not* call `FT_Stream_Close' on the source stream. None of the stream
76  * objects will be released to the heap.
77  *
78  * The stream implementation is very basic and resets the decompression
79  * process each time seeking backwards is needed within the stream.
80  *
81  * In certain builds of the library, gzip compression recognition is
82  * automatically handled when calling @FT_New_Face or @FT_Open_Face.
83  * This means that if no font driver is capable of handling the raw
84  * compressed file, the library will try to open a gzipped stream from
85  * it and re-open the face with it.
86  *
87  * This function may return `FT_Err_Unimplemented_Feature' if your build
88  * of FreeType was not compiled with zlib support.
89  */
90  FT_EXPORT( FT_Error )
91  FT_Stream_OpenGzip( FT_Stream stream,
92  FT_Stream source );
93 
94  /* */
95 
96 
97 FT_END_HEADER
98 
99 #endif /* __FTGZIP_H__ */
100 
101 
102 /* END */
FT_Error
int FT_Error
Definition: fttypes.h:296
stream
GLuint GLuint stream
Definition: khronos_glext.h:7516
FT_END_HEADER
#define FT_END_HEADER
Definition: ftheader.h:54
source
GLsizei GLsizei GLchar * source
Definition: khronos_glext.h:6042
FT_BEGIN_HEADER
#define FT_BEGIN_HEADER
Definition: ftheader.h:36
FT_Stream_OpenGzip
FT_BEGIN_HEADER FT_Stream_OpenGzip(FT_Stream stream, FT_Stream source)
Definition: ftgzip.c:677
FT_EXPORT
#define FT_EXPORT(x)
Definition: ftconfig.h:269
FT_StreamRec_
Definition: ftsystem.h:321

Visualization Library 2.0.0-b5 Reference Documentation

Updated on Mon Feb 10 2020 02:44:39.

© Copyright Michele Bosi. All rights reserved.