[SOLVED] CS代考计算机代写 /***************************************************************************/

/***************************************************************************/
/* */
/*ftpfr.h*/
/* */
/*FreeType API for accessing PFR-specific data (specification only). */
/* */
/*Copyright 2002-2015 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
#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

/*************************************************************************/
/* */
/*

*/
/*pfr_fonts*/
/* */
/*

/**********************************************************************
*
* @function:
*FT_Get_PFR_Metrics
*
* @description:
*Return the outline and metrics resolutions of a given PFR face.
*
* @input:
*face :: Handle to the input face.It can be a non-PFR face.
*
* @output:
*aoutline_resolution ::
*Outline resolution.This is equivalent to `face->units_per_EM’
*for non-PFR fonts.Optional (parameter can be NULL).
*
*ametrics_resolution ::
*Metrics resolution.This is equivalent to `outline_resolution’
*for non-PFR fonts.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).
*
* @return:
*FreeType error code.0~means success.
*
* @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_Faceface,
FT_UInt *aoutline_resolution,
FT_UInt *ametrics_resolution,
FT_Fixed*ametrics_x_scale,
FT_Fixed*ametrics_y_scale );

/**********************************************************************
*
* @function:
*FT_Get_PFR_Kerning
*
* @description:
*Return 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:: A handle to the input face.
*
*left:: Index of the left glyph.
*
*right :: Index of the right glyph.
*
* @output:
*avector :: A kerning vector.
*
* @return:
*FreeType error code.0~means success.
*
* @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 returns 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:
*Return a given glyph advance, expressed in original metrics units,
*from a PFR font.
*
* @input:
*face :: A handle to the input face.
*
*gindex :: The glyph index.
*
* @output:
*aadvance :: The glyph advance in metrics units.
*
* @return:
*FreeType 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 /* __FTPFR_H__ */

/* END */