+
−/***************************************************************************/
+
−/*                                                                         */
+
−/*  ftlzw.h                                                                */
+
−/*                                                                         */
+
−/*    LZW-compressed stream support.                                       */
+
−/*                                                                         */
+
−/*  Copyright 2004, 2006 by                                                */
+
−/*  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 __FTLZW_H__
+
−#define __FTLZW_H__
+
−
+
−#include <ft2build.h>
+
−#include FT_FREETYPE_H
+
−
+
−#ifdef FREETYPE_H
+
−#error "freetype.h of FreeType 1 has been loaded!"
+
−#error "Please fix the directory search order for header files"
+
−#error "so that freetype.h of FreeType 2 is found first."
+
−#endif
+
−
+
−
+
−FT_BEGIN_HEADER
+
−
+
−  /*************************************************************************/
+
−  /*                                                                       */
+
−  /* <Section>                                                             */
+
−  /*    lzw                                                                */
+
−  /*                                                                       */
+
−  /* <Title>                                                               */
+
−  /*    LZW Streams                                                        */
+
−  /*                                                                       */
+
−  /* <Abstract>                                                            */
+
−  /*    Using LZW-compressed font files.                                   */
+
−  /*                                                                       */
+
−  /* <Description>                                                         */
+
−  /*    This section contains the declaration of LZW-specific functions.   */
+
−  /*                                                                       */
+
−  /*************************************************************************/
+
−
+
− /************************************************************************
+
−  *
+
−  * @function:
+
−  *   FT_Stream_OpenLZW
+
−  *
+
−  * @description:
+
−  *   Open a new stream to parse LZW-compressed font files.  This is
+
−  *   mainly used to support the compressed `*.pcf.Z' fonts that come
+
−  *   with XFree86.
+
−  *
+
−  * @input:
+
−  *   stream :: The target embedding stream.
+
−  *
+
−  *   source :: The source stream.
+
−  *
+
−  * @return:
+
−  *   FreeType error code.  0~means success.
+
−  *
+
−  * @note:
+
−  *   The source stream must be opened _before_ calling this function.
+
−  *
+
−  *   Calling the internal function `FT_Stream_Close' on the new stream will
+
−  *   *not* call `FT_Stream_Close' on the source stream.  None of the stream
+
−  *   objects will be released to the heap.
+
−  *
+
−  *   The stream implementation is very basic and resets the decompression
+
−  *   process each time seeking backwards is needed within the stream
+
−  *
+
−  *   In certain builds of the library, LZW compression recognition is
+
−  *   automatically handled when calling @FT_New_Face or @FT_Open_Face.
+
−  *   This means that if no font driver is capable of handling the raw
+
−  *   compressed file, the library will try to open a LZW stream from it
+
−  *   and re-open the face with it.
+
−  *
+
−  *   This function may return `FT_Err_Unimplemented_Feature' if your build
+
−  *   of FreeType was not compiled with LZW support.
+
−  */
+
−  FT_EXPORT( FT_Error )
+
−  FT_Stream_OpenLZW( FT_Stream  stream,
+
−                     FT_Stream  source );
+
−
+
− /* */
+
−
+
−
+
−FT_END_HEADER
+
−
+
−#endif /* __FTLZW_H__ */
+
−
+
−
+
−/* END */