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added new auto-hinter driver interface !

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modified tttypes.h to use the new "include/tttables.h"
This commit is contained in:
David Turner 2000-04-25 16:09:55 +00:00
parent ffd43a6fc8
commit 8ce47b1da6
2 changed files with 120 additions and 2 deletions
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117
src/shared/autohint.h Normal file
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@ -0,0 +1,117 @@
/***************************************************************************/
/* */
/* autohint.h */
/* */
/* High-level `autohint" driver interface (specification) */
/* */
/* Copyright 1996-2000 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. */
/* */
/* */
/* The auto-hinter is used to load and automatically hint glyphs */
/* when a format-specific hinter isn't available.. */
/* */
/***************************************************************************/
#ifndef AUTOHINT_H
#define AUTOHINT_H
#include <freetype.h>
/***********************************************************************
*
* <FuncType>
* FT_AutoHinter_Init_Func
*
* <Description>
* Each face can have its own auto-hinter object. This function
* is used to initialise it. Its role is to perform a few statistics
* on the face's content in order to compute global metrics like
* blue zones and standard width/heights.
*
* <Input>
* face :: handle to the face.
*
* <Note>
* this function will call FT_Load_Glyph several times in order to
* compute various statistics on the face's glyphs. This means that
* the face handle must be valid when calling it.
*
* This function set the "hinter" and "hinter_len" fields of 'face'.
*/
typedef FT_Error (*FT_AutoHinter_Init_Func)( FT_Face face );
/***********************************************************************
*
* <FuncType>
* FT_AutoHinter_Done_Func
*
* <Description>
* Each face can have its own auto-hinter object. This function
* is used to finalise and destroy it.
*
* <Input>
* face :: handle to the face.
*
* <Note>
* This function clears the "hinter" and "hinter_len" fields of
* "face". However, the face object is still valid and can be used
* to load un-hinted glyphs..
*
*/
typedef void (*FT_AutoHinter_Done_Func)( FT_Face face );
/***********************************************************************
*
* <FuncType>
* FT_AutoHinter_Load_Func
*
* <Description>
* This function is used to load, scale and automatically hint a glyph
* from a given face.
*
* <Input>
* face :: handle to the face.
* glyph_index :: glyph index
* load_flags :: load flags
*
* <Note>
* This function is capable of loading composite glyphs by hinting
* each sub-glyph independently (which improves quality).
*
* It will call the font driver with FT_Load_Glyph, with FT_LOAD_NO_SCALE
* set..
*
*/
typedef FT_Error (*FT_AutoHinter_Load_Func)( FT_Face face,
FT_UInt glyph_index,
FT_ULong load_flags );
/***********************************************************************
*
* <Struct>
* FT_AutoHinter_Interface
*
* <Description>
* The auto-hinter module's interface.
*
*/
typedef struct FT_AutoHinter_Interface
{
FT_AutoHinter_Init_Func init_autohinter;
FT_AutoHinter_Done_Func done_autohinter;
FT_AutoHinter_Load_Func load_glyph;
} FT_AutoHinter_Interface;
#endif /* AUTOHINT_H */

5
src/shared/tttypes.h
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@ -24,7 +24,7 @@
#define TTTYPES_H
#include <freetype.h>
#include <tttables.h>
#ifdef __cplusplus
@ -423,6 +423,7 @@
} TT_Table;
#if 0
/*************************************************************************/
/* */
/* <Struct> */
@ -787,7 +788,7 @@
/* load them by default. See the ttpost.c file. */
} TT_Postscript;
#endif
/*************************************************************************/
/* */