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/usr/include/freetype2/freetype

Name	Size	Mode	Actions
config/	-	0755	rm
freetype.h	165119	0644	edit dl rm
ftadvanc.h	5470	0644	edit dl rm
ftbbox.h	2638	0644	edit dl rm
ftbdf.h	5322	0644	edit dl rm
ftbitmap.h	9051	0644	edit dl rm
ftbzip2.h	2786	0644	edit dl rm
ftcache.h	33858	0644	edit dl rm
ftchapters.h	2510	0644	edit dl rm
ftcid.h	4022	0644	edit dl rm
ftcolor.h	8913	0644	edit dl rm
ftdriver.h	47220	0644	edit dl rm
fterrdef.h	12336	0644	edit dl rm
fterrors.h	9291	0644	edit dl rm
ftfntfmt.h	2213	0644	edit dl rm
ftgasp.h	4138	0644	edit dl rm
ftglyph.h	18491	0644	edit dl rm
ftgxval.h	10625	0644	edit dl rm
ftgzip.h	4211	0644	edit dl rm
ftimage.h	39895	0644	edit dl rm
ftincrem.h	10310	0644	edit dl rm
ftlcdfil.h	11739	0644	edit dl rm
ftlist.h	7100	0644	edit dl rm
ftlzw.h	2768	0644	edit dl rm
ftmac.h	7771	0644	edit dl rm
ftmm.h	21793	0644	edit dl rm
ftmodapi.h	21777	0644	edit dl rm
ftmoderr.h	6601	0644	edit dl rm
ftotval.h	5346	0644	edit dl rm
ftoutln.h	17870	0644	edit dl rm
ftparams.h	5592	0644	edit dl rm
ftpfr.h	4910	0644	edit dl rm
ftrender.h	6625	0644	edit dl rm
ftsizes.h	4288	0644	edit dl rm
ftsnames.h	7730	0644	edit dl rm
ftstroke.h	21773	0644	edit dl rm
ftsynth.h	3362	0644	edit dl rm
ftsystem.h	8518	0644	edit dl rm
fttrigon.h	7411	0644	edit dl rm
fttypes.h	14487	0644	edit dl rm
ftwinfnt.h	7966	0644	edit dl rm
t1tables.h	22829	0644	edit dl rm
ttnameid.h	58769	0644	edit dl rm
tttables.h	25231	0644	edit dl rm
tttags.h	5092	0644	edit dl rm

Edit: /usr/include/freetype2/freetype/ftbitmap.h (9051B)

/****************************************************************************
 *
 * ftbitmap.h
 *
 *   FreeType utility functions for bitmaps (specification).
 *
 * Copyright (C) 2004-2020 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 FTBITMAP_H_
#define FTBITMAP_H_

#include <freetype/freetype.h>
#include <freetype/ftcolor.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:
   *   bitmap_handling
   *
   * @title:
   *   Bitmap Handling
   *
   * @abstract:
   *   Handling FT_Bitmap objects.
   *
   * @description:
   *   This section contains functions for handling @FT_Bitmap objects,
   *   automatically adjusting the target's bitmap buffer size as needed.
   *
   *   Note that none of the functions changes the bitmap's 'flow' (as
   *   indicated by the sign of the `pitch` field in @FT_Bitmap).
   *
   *   To set the flow, assign an appropriate positive or negative value to
   *   the `pitch` field of the target @FT_Bitmap object after calling
   *   @FT_Bitmap_Init but before calling any of the other functions
   *   described here.
   */

/**************************************************************************
   *
   * @function:
   *   FT_Bitmap_Init
   *
   * @description:
   *   Initialize a pointer to an @FT_Bitmap structure.
   *
   * @inout:
   *   abitmap ::
   *     A pointer to the bitmap structure.
   *
   * @note:
   *   A deprecated name for the same function is `FT_Bitmap_New`.
   */
  FT_EXPORT( void )
  FT_Bitmap_Init( FT_Bitmap  *abitmap );

/* deprecated */
  FT_EXPORT( void )
  FT_Bitmap_New( FT_Bitmap  *abitmap );

/**************************************************************************
   *
   * @function:
   *   FT_Bitmap_Copy
   *
   * @description:
   *   Copy a bitmap into another one.
   *
   * @input:
   *   library ::
   *     A handle to a library object.
   *
   *   source ::
   *     A handle to the source bitmap.
   *
   * @output:
   *   target ::
   *     A handle to the target bitmap.
   *
   * @return:
   *   FreeType error code.  0~means success.
   *
   * @note:
   *   `source->buffer` and `target->buffer` must neither be equal nor
   *   overlap.
   */
  FT_EXPORT( FT_Error )
  FT_Bitmap_Copy( FT_Library        library,
                  const FT_Bitmap  *source,
                  FT_Bitmap        *target );

/**************************************************************************
   *
   * @function:
   *   FT_Bitmap_Embolden
   *
   * @description:
   *   Embolden a bitmap.  The new bitmap will be about `xStrength` pixels
   *   wider and `yStrength` pixels higher.  The left and bottom borders are
   *   kept unchanged.
   *
   * @input:
   *   library ::
   *     A handle to a library object.
   *
   *   xStrength ::
   *     How strong the glyph is emboldened horizontally.  Expressed in 26.6
   *     pixel format.
   *
   *   yStrength ::
   *     How strong the glyph is emboldened vertically.  Expressed in 26.6
   *     pixel format.
   *
   * @inout:
   *   bitmap ::
   *     A handle to the target bitmap.
   *
   * @return:
   *   FreeType error code.  0~means success.
   *
   * @note:
   *   The current implementation restricts `xStrength` to be less than or
   *   equal to~8 if bitmap is of pixel_mode @FT_PIXEL_MODE_MONO.
   *
   *   If you want to embolden the bitmap owned by a @FT_GlyphSlotRec, you
   *   should call @FT_GlyphSlot_Own_Bitmap on the slot first.
   *
   *   Bitmaps in @FT_PIXEL_MODE_GRAY2 and @FT_PIXEL_MODE_GRAY@ format are
   *   converted to @FT_PIXEL_MODE_GRAY format (i.e., 8bpp).
   */
  FT_EXPORT( FT_Error )
  FT_Bitmap_Embolden( FT_Library  library,
                      FT_Bitmap*  bitmap,
                      FT_Pos      xStrength,
                      FT_Pos      yStrength );

/**************************************************************************
   *
   * @function:
   *   FT_Bitmap_Convert
   *
   * @description:
   *   Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, 8bpp or 32bpp to
   *   a bitmap object with depth 8bpp, making the number of used bytes per
   *   line (a.k.a. the 'pitch') a multiple of `alignment`.
   *
   * @input:
   *   library ::
   *     A handle to a library object.
   *
   *   source ::
   *     The source bitmap.
   *
   *   alignment ::
   *     The pitch of the bitmap is a multiple of this argument.  Common
   *     values are 1, 2, or 4.
   *
   * @output:
   *   target ::
   *     The target bitmap.
   *
   * @return:
   *   FreeType error code.  0~means success.
   *
   * @note:
   *   It is possible to call @FT_Bitmap_Convert multiple times without
   *   calling @FT_Bitmap_Done (the memory is simply reallocated).
   *
   *   Use @FT_Bitmap_Done to finally remove the bitmap object.
   *
   *   The `library` argument is taken to have access to FreeType's memory
   *   handling functions.
   *
   *   `source->buffer` and `target->buffer` must neither be equal nor
   *   overlap.
   */
  FT_EXPORT( FT_Error )
  FT_Bitmap_Convert( FT_Library        library,
                     const FT_Bitmap  *source,
                     FT_Bitmap        *target,
                     FT_Int            alignment );

/**************************************************************************
   *
   * @function:
   *   FT_Bitmap_Blend
   *
   * @description:
   *   Blend a bitmap onto another bitmap, using a given color.
   *
   * @input:
   *   library ::
   *     A handle to a library object.
   *
   *   source ::
   *     The source bitmap, which can have any @FT_Pixel_Mode format.
   *
   *   source_offset ::
   *     The offset vector to the upper left corner of the source bitmap in
   *     26.6 pixel format.  It should represent an integer offset; the
   *     function will set the lowest six bits to zero to enforce that.
   *
   *   color ::
   *     The color used to draw `source` onto `target`.
   *
   * @inout:
   *   target ::
   *     A handle to an `FT_Bitmap` object.  It should be either initialized
   *     as empty with a call to @FT_Bitmap_Init, or it should be of type
   *     @FT_PIXEL_MODE_BGRA.
   *
   *   atarget_offset ::
   *     The offset vector to the upper left corner of the target bitmap in
   *     26.6 pixel format.  It should represent an integer offset; the
   *     function will set the lowest six bits to zero to enforce that.
   *
   * @return:
   *   FreeType error code.  0~means success.
   *
   * @note:
   *   This function doesn't perform clipping.
   *
   *   The bitmap in `target` gets allocated or reallocated as needed; the
   *   vector `atarget_offset` is updated accordingly.
   *
   *   In case of allocation or reallocation, the bitmap's pitch is set to
   *   `4 * width`.  Both `source` and `target` must have the same bitmap
   *   flow (as indicated by the sign of the `pitch` field).
   *
   *   `source->buffer` and `target->buffer` must neither be equal nor
   *   overlap.
   *
   * @since:
   *   2.10
   */
  FT_EXPORT( FT_Error )
  FT_Bitmap_Blend( FT_Library         library,
                   const FT_Bitmap*   source,
                   const FT_Vector    source_offset,
                   FT_Bitmap*         target,
                   FT_Vector         *atarget_offset,
                   FT_Color           color );

/**************************************************************************
   *
   * @function:
   *   FT_GlyphSlot_Own_Bitmap
   *
   * @description:
   *   Make sure that a glyph slot owns `slot->bitmap`.
   *
   * @input:
   *   slot ::
   *     The glyph slot.
   *
   * @return:
   *   FreeType error code.  0~means success.
   *
   * @note:
   *   This function is to be used in combination with @FT_Bitmap_Embolden.
   */
  FT_EXPORT( FT_Error )
  FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot  slot );

/**************************************************************************
   *
   * @function:
   *   FT_Bitmap_Done
   *
   * @description:
   *   Destroy a bitmap object initialized with @FT_Bitmap_Init.
   *
   * @input:
   *   library ::
   *     A handle to a library object.
   *
   *   bitmap ::
   *     The bitmap object to be freed.
   *
   * @return:
   *   FreeType error code.  0~means success.
   *
   * @note:
   *   The `library` argument is taken to have access to FreeType's memory
   *   handling functions.
   */
  FT_EXPORT( FT_Error )
  FT_Bitmap_Done( FT_Library  library,
                  FT_Bitmap  *bitmap );

/* */

FT_END_HEADER

#endif /* FTBITMAP_H_ */

/* END */

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