Initial revision
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2035 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
@@ -0,0 +1,86 @@
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/***************************************************************************/
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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, */
|
||||
/* 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. */
|
||||
/* */
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||||
/***************************************************************************/
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||||
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||||
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#ifndef __FTXF86_H__
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#define __FTXF86_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 /* __FTXF86_H__ */
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@@ -0,0 +1,286 @@
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/***************************************************************************/
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/* */
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/* ftincrem.h */
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/* */
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/* FreeType incremental loading (specification). */
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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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||||
/* */
|
||||
/* 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. */
|
||||
/* */
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||||
/***************************************************************************/
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#ifndef __FTINCREM_H__
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#define __FTINCREM_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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* @type:
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* FT_Incremental
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*
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* @description:
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* An opaque type describing a user-provided object used to implement
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* "incremental" glyph loading within FreeType. This is used to support
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* embedded fonts in certain environments (e.g. Postscript interpreters),
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* where the glyph data isn't in the font file, or must be overridden by
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* different values.
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*
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* @note:
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* It is up to client applications to create and implement @FT_Incremental
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* objects, as long as they provide implementations for the methods
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* @FT_Incremental_GetGlyphDataFunc, @FT_Incremental_FreeGlyphDataFunc
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* and @FT_Incremental_GetGlyphMetricsFunc.
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*
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* See the description of @FT_Incremental_InterfaceRec to understand how
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* to use incremental objects with FreeType.
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*/
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typedef struct FT_IncrementalRec_* FT_Incremental;
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/***************************************************************************
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*
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* @struct:
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* FT_Incremental_Metrics
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*
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* @description:
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* A small structure used to contain the basic glyph metrics returned
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* by the @FT_Incremental_GetGlyphMetricsFunc method.
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*
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* @fields:
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* bearing_x ::
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* Left bearing, in font units.
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*
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* bearing_y ::
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* Top bearing, in font units.
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*
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* advance ::
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* Glyph advance, in font units.
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*
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* @note:
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* These correspond to horizontal or vertical metrics depending on the
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* value of the 'vertical' argument to the function
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* @FT_Incremental_GetGlyphMetricsFunc.
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*/
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typedef struct FT_Incremental_MetricsRec_
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{
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FT_Long bearing_x;
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FT_Long bearing_y;
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FT_Long advance;
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} FT_Incremental_MetricsRec, *FT_Incremental_Metrics;
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/***************************************************************************
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*
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* @type:
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* FT_Incremental_GetGlyphDataFunc
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*
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* @description:
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* A function called by FreeType to access a given glyph's data bytes
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* during @FT_Load_Glyph or @FT_Load_Char if incremental loading is
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* enabled.
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*
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* Note that the format of the glyph's data bytes depends on the font
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* file format. For TrueType, it must correspond to the raw bytes within
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* the 'glyf' table. For Postscript formats, it must correspond to the
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* *unencrypted* charstring bytes, without any 'lenIV' header. It is
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* undefined for any other format.
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*
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* @input:
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* incremental ::
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* Handle to an opaque @FT_Incremental handle provided by the client
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* application.
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*
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* glyph_index ::
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* Index of relevant glyph.
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*
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* @output:
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||||
* adata ::
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||||
* A structure describing the returned glyph data bytes (which will be
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||||
* accessed as a read-only byte block).
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*
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* @return:
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||||
* FreeType error code. 0 means success.
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*
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* @note:
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||||
* If this function returns succesfully the method
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* @FT_Incremental_FreeGlyphDataFunc will be called later to release
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* the data bytes.
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*
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* Nested calls to @FT_Incremental_GetGlyphDataFunc can happen for
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* compound glyphs.
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||||
*/
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typedef FT_Error
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(*FT_Incremental_GetGlyphDataFunc)( FT_Incremental incremental,
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FT_UInt glyph_index,
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FT_Data* adata );
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||||
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||||
/***************************************************************************
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||||
*
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||||
* @type:
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||||
* FT_Incremental_FreeGlyphDataFunc
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||||
*
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||||
* @description:
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||||
* A function used to release the glyph data bytes returned by a
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* successful call to @FT_Incremental_GetGlyphDataFunc.
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*
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||||
* @input:
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||||
* incremental ::
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||||
* A handle to an opaque @FT_Incremental handle provided by the client
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* application.
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*
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* data ::
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* A structure describing the glyph data bytes (which will be accessed
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* as a read-only byte block).
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*/
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typedef void
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(*FT_Incremental_FreeGlyphDataFunc)( FT_Incremental incremental,
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FT_Data* data );
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/***************************************************************************
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*
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* @type:
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* FT_Incremental_GetGlyphMetricsFunc
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*
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* @description:
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* A function used to retrieve the basic metrics of a given glyph index
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* before accessing its data. This is necessary because, in certain
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* formats like TrueType, the metrics are stored in a different place from
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* the glyph images proper.
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*
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* @input:
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||||
* incremental ::
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* A handle to an opaque @FT_Incremental handle provided by the client
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* application.
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*
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* glyph_index ::
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* Index of relevant glyph.
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*
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* vertical ::
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* If true, return vertical metrics.
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*
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* @output:
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||||
* ametrics ::
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* The glyph metrics in font units.
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*
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* afound ::
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* True if there are metrics at all.
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*
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||||
*/
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typedef FT_Error
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(*FT_Incremental_GetGlyphMetricsFunc)
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( FT_Incremental incremental,
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FT_UInt glyph_index,
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FT_Bool vertical,
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FT_Incremental_MetricsRec *ametrics,
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||||
FT_Bool *afound );
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||||
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||||
/**************************************************************************
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||||
*
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||||
* @struct:
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||||
* FT_Incremental_FuncsRec
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||||
*
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* @description:
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||||
* A table of functions for accessing fonts that load data
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||||
* incrementally. Used in @FT_Incremental_Interface.
|
||||
*
|
||||
* @fields:
|
||||
* get_glyph_data ::
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||||
* The function to get glyph data. Must not be null.
|
||||
*
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||||
* free_glyph_data ::
|
||||
* The function to release glyph data. Must not be null.
|
||||
*
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||||
* get_glyph_metrics ::
|
||||
* The function to get glyph metrics. May be null if the font does
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||||
* not provide overriding glyph metrics.
|
||||
*/
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||||
typedef struct FT_Incremental_FuncsRec_
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{
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||||
FT_Incremental_GetGlyphDataFunc get_glyph_data;
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||||
FT_Incremental_FreeGlyphDataFunc free_glyph_data;
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||||
FT_Incremental_GetGlyphMetricsFunc get_glyph_metrics;
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||||
|
||||
} FT_Incremental_FuncsRec;
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||||
|
||||
|
||||
/***************************************************************************
|
||||
*
|
||||
* @struct:
|
||||
* FT_Incremental_InterfaceRec
|
||||
*
|
||||
* @description:
|
||||
* A structure to be used with @FT_Open_Face to indicate that the user
|
||||
* wants to support incremental glyph loading. You should use it with
|
||||
* @FT_PARAM_TAG_INCREMENTAL as in the following example:
|
||||
*
|
||||
* {
|
||||
* FT_Incremental_InterfaceRec inc_int;
|
||||
* FT_Parameter parameter;
|
||||
* FT_Open_Args open_args;
|
||||
*
|
||||
*
|
||||
* // set up incremental descriptor
|
||||
* inc_int.funcs = my_funcs;
|
||||
* inc_int.object = my_object;
|
||||
*
|
||||
* // set up optional parameter
|
||||
* parameter.tag = FT_PARAM_TAG_INCREMENTAL;
|
||||
* parameter.data = &inc_int;
|
||||
*
|
||||
* // set up FT_Open_Args structure
|
||||
* open_args.flags = (FT_Open_Flags)( FT_OPEN_PATHNAME |
|
||||
* FT_OPEN_PARAMS );
|
||||
* open_args.pathname = my_font_pathname;
|
||||
* open_args.num_params = 1;
|
||||
* open_args.params = ¶meter; // we use one optional argument
|
||||
*
|
||||
* // open the font
|
||||
* error = FT_Open_Face( library, &open_args, index, &face );
|
||||
* ...
|
||||
* }
|
||||
*/
|
||||
typedef struct FT_Incremental_InterfaceRec_
|
||||
{
|
||||
const FT_Incremental_FuncsRec* funcs;
|
||||
FT_Incremental object;
|
||||
|
||||
} FT_Incremental_InterfaceRec;
|
||||
|
||||
|
||||
/***************************************************************************
|
||||
*
|
||||
* @constant:
|
||||
* FT_PARAM_TAG_INCREMENTAL
|
||||
*
|
||||
* @description:
|
||||
* A constant used as the tag of @FT_Parameter structures to indicate
|
||||
* an incremental loading object to be used by FreeType.
|
||||
*
|
||||
*/
|
||||
#define FT_PARAM_TAG_INCREMENTAL FT_MAKE_TAG( 'i', 'n', 'c', 'r' )
|
||||
|
||||
/* */
|
||||
|
||||
FT_END_HEADER
|
||||
|
||||
#endif /* __FTINCREM_H__ */
|
||||
|
||||
|
||||
/* END */
|
||||
@@ -0,0 +1,156 @@
|
||||
/***************************************************************************/
|
||||
/* */
|
||||
/* ftpfr.h */
|
||||
/* */
|
||||
/* FreeType API for accessing PFR-specific data */
|
||||
/* */
|
||||
/* Copyright 2002 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 __FTPFR_H__
|
||||
#define __FTPFR_H__
|
||||
|
||||
#include <ft2build.h>
|
||||
#include FT_FREETYPE_H
|
||||
|
||||
|
||||
FT_BEGIN_HEADER
|
||||
|
||||
|
||||
/*************************************************************************/
|
||||
/* */
|
||||
/* <Section> */
|
||||
/* pfr_fonts */
|
||||
/* */
|
||||
/* <Title> */
|
||||
/* PFR Fonts */
|
||||
/* */
|
||||
/* <Abstract> */
|
||||
/* PFR/TrueDoc specific APIs */
|
||||
/* */
|
||||
/* <Description> */
|
||||
/* This section contains the declaration of PFR-specific functions. */
|
||||
/* */
|
||||
/*************************************************************************/
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
*
|
||||
* @function:
|
||||
* FT_Get_PFR_Metrics
|
||||
*
|
||||
* @description:
|
||||
* returns the outline and metrics resolutions of a given PFR
|
||||
* face.
|
||||
*
|
||||
* @input:
|
||||
* face :: handle to input face. It can be a non-PFR face.
|
||||
*
|
||||
* @output:
|
||||
* aoutline_resolution ::
|
||||
* outline resolution. This is equivalent to "face->units_per_EM".
|
||||
* optional (parameter can be NULL)
|
||||
*
|
||||
* ametrics_resolution ::
|
||||
* metrics_resolution. This is equivalent to "outline_resolution"
|
||||
* for non-PFR fonts. can be NULL
|
||||
* optional (parameter can be NULL)
|
||||
*
|
||||
* ametrics_x_scale ::
|
||||
* a 16.16 fixed-point number used to scale distance expressed
|
||||
* in metrics units to device sub-pixels. This is equivalent to
|
||||
* 'face->size->x_scale', but for metrics only.
|
||||
* optional (parameter can be NULL)
|
||||
*
|
||||
* ametrics_y_scale ::
|
||||
* same as 'ametrics_x_scale', but for the vertical direction.
|
||||
* optional (parameter can be NULL)
|
||||
*
|
||||
* @note:
|
||||
* if the input face is not a PFR, this function will return an error.
|
||||
* However, in all cases, it will return valid values.
|
||||
*/
|
||||
FT_EXPORT( FT_Error )
|
||||
FT_Get_PFR_Metrics( FT_Face face,
|
||||
FT_UInt *aoutline_resolution,
|
||||
FT_UInt *ametrics_resolution,
|
||||
FT_Fixed *ametrics_x_scale,
|
||||
FT_Fixed *ametrics_y_scale );
|
||||
|
||||
/**********************************************************************
|
||||
*
|
||||
* @function:
|
||||
* FT_Get_PFR_Kerning
|
||||
*
|
||||
* @description:
|
||||
* returns the kerning pair corresponding to two glyphs in
|
||||
* a PFR face. The distance is expressed in metrics units, unlike
|
||||
* the result of @FT_Get_Kerning.
|
||||
*
|
||||
* @input:
|
||||
* face :: handle to input face.
|
||||
* left :: left glyph index
|
||||
* right :: right glyph index
|
||||
*
|
||||
* @output:
|
||||
* avector :: kerning vector
|
||||
*
|
||||
* @note:
|
||||
* this function always return distances in original PFR metrics
|
||||
* units. This is unlike @FT_Get_Kerning with the @FT_KERNING_UNSCALED
|
||||
* mode, which always return distances converted to outline units.
|
||||
*
|
||||
* you can use the value of the 'x_scale' and 'y_scale' parameters
|
||||
* returned by @FT_Get_PFR_Metrics to scale these to device sub-pixels
|
||||
*/
|
||||
FT_EXPORT( FT_Error )
|
||||
FT_Get_PFR_Kerning( FT_Face face,
|
||||
FT_UInt left,
|
||||
FT_UInt right,
|
||||
FT_Vector *avector );
|
||||
|
||||
/**********************************************************************
|
||||
*
|
||||
* @function:
|
||||
* FT_Get_PFR_Advance
|
||||
*
|
||||
* @description:
|
||||
* returns a given glyph advance, expressed in original metrics units,
|
||||
* from a PFR font.
|
||||
*
|
||||
* @input:
|
||||
* face :: handle to input face.
|
||||
* gindex :: glyph index
|
||||
*
|
||||
* @output:
|
||||
* aadvance :: glyph advance in metrics units
|
||||
*
|
||||
* @return:
|
||||
* error code. 0 means success
|
||||
*
|
||||
* @note:
|
||||
* you can use the 'x_scale' or 'y_scale' results of @FT_Get_PFR_Metrics
|
||||
* to convert the advance to device sub-pixels (i.e. 1/64th of pixels)
|
||||
*/
|
||||
FT_EXPORT( FT_Error )
|
||||
FT_Get_PFR_Advance( FT_Face face,
|
||||
FT_UInt gindex,
|
||||
FT_Pos *aadvance );
|
||||
|
||||
/* */
|
||||
|
||||
FT_END_HEADER
|
||||
|
||||
#endif /* __FTBDF_H__ */
|
||||
|
||||
|
||||
/* END */
|
||||
@@ -0,0 +1,139 @@
|
||||
#ifndef __FT_STROKER_H__
|
||||
#define __FT_STROKER_H__
|
||||
|
||||
#include <ft2build.h>
|
||||
#include FT_OUTLINE_H
|
||||
|
||||
FT_BEGIN_HEADER
|
||||
|
||||
/*@*************************************************************
|
||||
*
|
||||
* @type: FT_Stroker
|
||||
*
|
||||
* @description:
|
||||
* opaque handler to a path stroker object
|
||||
*/
|
||||
typedef struct FT_StrokerRec_* FT_Stroker;
|
||||
|
||||
|
||||
/*@*************************************************************
|
||||
*
|
||||
* @enum: FT_Stroker_LineJoin
|
||||
*
|
||||
* @description:
|
||||
* these values determine how two joining lines are rendered
|
||||
* in a stroker.
|
||||
*
|
||||
* @values:
|
||||
* FT_STROKER_LINEJOIN_ROUND ::
|
||||
* used to render rounded line joins. circular arcs are used
|
||||
* to join two lines smoothly
|
||||
*
|
||||
* FT_STROKER_LINEJOIN_BEVEL ::
|
||||
* used to render beveled line joins; i.e. the two joining lines
|
||||
* are extended until they intersect
|
||||
*
|
||||
* FT_STROKER_LINEJOIN_MITER ::
|
||||
* same as beveled rendering, except that an additional line
|
||||
* break is added if the angle between the two joining lines
|
||||
* is too closed (this is useful to avoid unpleasant spikes
|
||||
* in beveled rendering).
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
FT_STROKER_LINEJOIN_ROUND = 0,
|
||||
FT_STROKER_LINEJOIN_BEVEL,
|
||||
FT_STROKER_LINEJOIN_MITER
|
||||
|
||||
} FT_Stroker_LineJoin;
|
||||
|
||||
|
||||
/*@*************************************************************
|
||||
*
|
||||
* @enum: FT_Stroker_LineCap
|
||||
*
|
||||
* @description:
|
||||
* these values determine how the end of opened sub-paths are
|
||||
* rendered in a stroke
|
||||
*
|
||||
* @values:
|
||||
* FT_STROKER_LINECAP_BUTT ::
|
||||
* the end of lines is rendered as a full stop on the last
|
||||
* point itself
|
||||
*
|
||||
* FT_STROKER_LINECAP_ROUND ::
|
||||
* the end of lines is rendered as a half-circle around the
|
||||
* last point
|
||||
*
|
||||
* FT_STROKER_LINECAP_SQUARE ::
|
||||
* the end of lines is rendered as a square around the
|
||||
* last point
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
FT_STROKER_LINECAP_BUTT = 0,
|
||||
FT_STROKER_LINECAP_ROUND,
|
||||
FT_STROKER_LINECAP_SQUARE
|
||||
|
||||
} FT_Stroker_LineCap;
|
||||
|
||||
/* */
|
||||
|
||||
FT_EXPORT( FT_Error )
|
||||
FT_Stroker_New( FT_Memory memory,
|
||||
FT_Stroker *astroker );
|
||||
|
||||
FT_EXPORT( void )
|
||||
FT_Stroker_Set( FT_Stroker stroker,
|
||||
FT_Fixed radius,
|
||||
FT_Stroker_LineCap line_cap,
|
||||
FT_Stroker_LineJoin line_join,
|
||||
FT_Fixed miter_limit );
|
||||
|
||||
|
||||
FT_EXPORT( FT_Error )
|
||||
FT_Stroker_ParseOutline( FT_Stroker stroker,
|
||||
FT_Outline* outline,
|
||||
FT_Bool opened );
|
||||
|
||||
FT_EXPORT( FT_Error )
|
||||
FT_Stroker_BeginSubPath( FT_Stroker stroker,
|
||||
FT_Vector* to,
|
||||
FT_Bool open );
|
||||
|
||||
FT_EXPORT( FT_Error )
|
||||
FT_Stroker_EndSubPath( FT_Stroker stroker );
|
||||
|
||||
|
||||
FT_EXPORT( FT_Error )
|
||||
FT_Stroker_LineTo( FT_Stroker stroker,
|
||||
FT_Vector* to );
|
||||
|
||||
FT_EXPORT( FT_Error )
|
||||
FT_Stroker_ConicTo( FT_Stroker stroker,
|
||||
FT_Vector* control,
|
||||
FT_Vector* to );
|
||||
|
||||
FT_EXPORT( FT_Error )
|
||||
FT_Stroker_CubicTo( FT_Stroker stroker,
|
||||
FT_Vector* control1,
|
||||
FT_Vector* control2,
|
||||
FT_Vector* to );
|
||||
|
||||
|
||||
FT_EXPORT( FT_Error )
|
||||
FT_Stroker_GetCounts( FT_Stroker stroker,
|
||||
FT_UInt *anum_points,
|
||||
FT_UInt *anum_contours );
|
||||
|
||||
FT_EXPORT( void )
|
||||
FT_Stroker_Export( FT_Stroker stroker,
|
||||
FT_Outline* outline );
|
||||
|
||||
FT_EXPORT( void )
|
||||
FT_Stroker_Done( FT_Stroker stroker );
|
||||
|
||||
|
||||
FT_END_HEADER
|
||||
|
||||
#endif /* __FT_STROKER_H__ */
|
||||
@@ -0,0 +1,36 @@
|
||||
#ifndef __FT_INTERNAL_PFR_H__
|
||||
#define __FT_INTERNAL_PFR_H__
|
||||
|
||||
#include <ft2build.h>
|
||||
#include FT_FREETYPE_H
|
||||
|
||||
FT_BEGIN_HEADER
|
||||
|
||||
typedef FT_Error (*FT_PFR_GetMetricsFunc)( FT_Face face,
|
||||
FT_UInt *aoutline,
|
||||
FT_UInt *ametrics,
|
||||
FT_Fixed *ax_scale,
|
||||
FT_Fixed *ay_scale );
|
||||
|
||||
typedef FT_Error (*FT_PFR_GetKerningFunc)( FT_Face face,
|
||||
FT_UInt left,
|
||||
FT_UInt right,
|
||||
FT_Vector *avector );
|
||||
|
||||
typedef FT_Error (*FT_PFR_GetAdvanceFunc)( FT_Face face,
|
||||
FT_UInt gindex,
|
||||
FT_Pos *aadvance );
|
||||
|
||||
typedef struct FT_PFR_ServiceRec_
|
||||
{
|
||||
FT_PFR_GetMetricsFunc get_metrics;
|
||||
FT_PFR_GetKerningFunc get_kerning;
|
||||
FT_PFR_GetAdvanceFunc get_advance;
|
||||
|
||||
} FT_PFR_ServiceRec, *FT_PFR_Service;
|
||||
|
||||
#define FT_PFR_SERVICE_NAME "pfr"
|
||||
|
||||
FT_END_HEADER
|
||||
|
||||
#endif /* __FT_INTERNAL_PFR_H__ */
|
||||
Reference in New Issue
Block a user