87 lines
3.9 KiB
C
87 lines
3.9 KiB
C
/***************************************************************************/
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/* */
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/* ftgzip.h */
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/* */
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/* Gzip-compressed stream support. */
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/* */
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/* Copyright 2002 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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#ifndef __FTGZIP_H__
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#define __FTGZIP_H__
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#include <ft2build.h>
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#include FT_FREETYPE_H
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FT_BEGIN_HEADER
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/*************************************************************************/
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/* */
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/* <Section> */
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/* gzip */
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/* */
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/* <Title> */
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/* GZIP Streams */
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/* */
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/* <Abstract> */
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/* Using gzip-compressed font files */
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/* */
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/* <Description> */
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/* This section contains the declaration of Gzip-specific functions. */
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/* */
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/*************************************************************************/
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/************************************************************************
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*
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* @type: FT_Stream_OpenGzip
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*
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* @description:
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* open a new stream to parse gzip-compressed font files. This is
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* mainly used to support the compressed *.pcf.gz fonts that come
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* with XFree86
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*
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* @input:
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* stream :: target embedding stream
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* source :: source stream, used to
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*
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* @return:
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* error code. 0 means success
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*
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* @note:
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* the source stream must be opened _before_ calling this function.
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*
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* calling @FT_Stream_Close on the new stream will *not* call
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* @FT_Stream_Close on the source stream. None of the stream objects
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* will be released to the heap.
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*
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* the stream implementation is very basic, and resets the decompression
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* process each time seeking backwards is needed within the stream
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*
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* in certain builds of the library, gzip compression recognition is
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* automatic when calling @FT_New_Face or @FT_Open_Face. This means that
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* if no font driver is capable of handling the raw compressed file,
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* the library will try to open a gzip stream from it and re-open
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* the face with it.
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*
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* this function may return "FT_Err_Unimplemented" if your build of
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* FreeType was not compiled with zlib support.
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*/
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FT_EXPORT( FT_Error )
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FT_Stream_OpenGzip( FT_Stream stream,
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FT_Stream source );
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/* */
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FT_END_HEADER
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#endif /* __FTGZIP_H__ */
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