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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/ftsystem.h (8518B)

/****************************************************************************
 *
 * ftsystem.h
 *
 *   FreeType low-level system interface definition (specification).
 *
 * Copyright (C) 1996-2020 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 FTSYSTEM_H_
#define FTSYSTEM_H_

FT_BEGIN_HEADER

/**************************************************************************
   *
   * @section:
   *  system_interface
   *
   * @title:
   *  System Interface
   *
   * @abstract:
   *  How FreeType manages memory and i/o.
   *
   * @description:
   *  This section contains various definitions related to memory management
   *  and i/o access.  You need to understand this information if you want to
   *  use a custom memory manager or you own i/o streams.
   *
   */

/**************************************************************************
   *
   *                 M E M O R Y   M A N A G E M E N T
   *
   */

/**************************************************************************
   *
   * @type:
   *   FT_Memory
   *
   * @description:
   *   A handle to a given memory manager object, defined with an
   *   @FT_MemoryRec structure.
   *
   */
  typedef struct FT_MemoryRec_*  FT_Memory;

/**************************************************************************
   *
   * @functype:
   *   FT_Alloc_Func
   *
   * @description:
   *   A function used to allocate `size` bytes from `memory`.
   *
   * @input:
   *   memory ::
   *     A handle to the source memory manager.
   *
   *   size ::
   *     The size in bytes to allocate.
   *
   * @return:
   *   Address of new memory block.  0~in case of failure.
   *
   */
  typedef void*
  (*FT_Alloc_Func)( FT_Memory  memory,
                    long       size );

/**************************************************************************
   *
   * @functype:
   *   FT_Free_Func
   *
   * @description:
   *   A function used to release a given block of memory.
   *
   * @input:
   *   memory ::
   *     A handle to the source memory manager.
   *
   *   block ::
   *     The address of the target memory block.
   *
   */
  typedef void
  (*FT_Free_Func)( FT_Memory  memory,
                   void*      block );

/**************************************************************************
   *
   * @functype:
   *   FT_Realloc_Func
   *
   * @description:
   *   A function used to re-allocate a given block of memory.
   *
   * @input:
   *   memory ::
   *     A handle to the source memory manager.
   *
   *   cur_size ::
   *     The block's current size in bytes.
   *
   *   new_size ::
   *     The block's requested new size.
   *
   *   block ::
   *     The block's current address.
   *
   * @return:
   *   New block address.  0~in case of memory shortage.
   *
   * @note:
   *   In case of error, the old block must still be available.
   *
   */
  typedef void*
  (*FT_Realloc_Func)( FT_Memory  memory,
                      long       cur_size,
                      long       new_size,
                      void*      block );

/**************************************************************************
   *
   * @struct:
   *   FT_MemoryRec
   *
   * @description:
   *   A structure used to describe a given memory manager to FreeType~2.
   *
   * @fields:
   *   user ::
   *     A generic typeless pointer for user data.
   *
   *   alloc ::
   *     A pointer type to an allocation function.
   *
   *   free ::
   *     A pointer type to an memory freeing function.
   *
   *   realloc ::
   *     A pointer type to a reallocation function.
   *
   */
  struct  FT_MemoryRec_
  {
    void*            user;
    FT_Alloc_Func    alloc;
    FT_Free_Func     free;
    FT_Realloc_Func  realloc;
  };

/**************************************************************************
   *
   *                      I / O   M A N A G E M E N T
   *
   */

/**************************************************************************
   *
   * @type:
   *   FT_Stream
   *
   * @description:
   *   A handle to an input stream.
   *
   * @also:
   *   See @FT_StreamRec for the publicly accessible fields of a given stream
   *   object.
   *
   */
  typedef struct FT_StreamRec_*  FT_Stream;

/**************************************************************************
   *
   * @struct:
   *   FT_StreamDesc
   *
   * @description:
   *   A union type used to store either a long or a pointer.  This is used
   *   to store a file descriptor or a `FILE*` in an input stream.
   *
   */
  typedef union  FT_StreamDesc_
  {
    long   value;
    void*  pointer;

} FT_StreamDesc;

/**************************************************************************
   *
   * @functype:
   *   FT_Stream_IoFunc
   *
   * @description:
   *   A function used to seek and read data from a given input stream.
   *
   * @input:
   *   stream ::
   *     A handle to the source stream.
   *
   *   offset ::
   *     The offset of read in stream (always from start).
   *
   *   buffer ::
   *     The address of the read buffer.
   *
   *   count ::
   *     The number of bytes to read from the stream.
   *
   * @return:
   *   The number of bytes effectively read by the stream.
   *
   * @note:
   *   This function might be called to perform a seek or skip operation with
   *   a `count` of~0.  A non-zero return value then indicates an error.
   *
   */
  typedef unsigned long
  (*FT_Stream_IoFunc)( FT_Stream       stream,
                       unsigned long   offset,
                       unsigned char*  buffer,
                       unsigned long   count );

/**************************************************************************
   *
   * @functype:
   *   FT_Stream_CloseFunc
   *
   * @description:
   *   A function used to close a given input stream.
   *
   * @input:
   *  stream ::
   *    A handle to the target stream.
   *
   */
  typedef void
  (*FT_Stream_CloseFunc)( FT_Stream  stream );

/**************************************************************************
   *
   * @struct:
   *   FT_StreamRec
   *
   * @description:
   *   A structure used to describe an input stream.
   *
   * @input:
   *   base ::
   *     For memory-based streams, this is the address of the first stream
   *     byte in memory.  This field should always be set to `NULL` for
   *     disk-based streams.
   *
   *   size ::
   *     The stream size in bytes.
   *
   *     In case of compressed streams where the size is unknown before
   *     actually doing the decompression, the value is set to 0x7FFFFFFF.
   *     (Note that this size value can occur for normal streams also; it is
   *     thus just a hint.)
   *
   *   pos ::
   *     The current position within the stream.
   *
   *   descriptor ::
   *     This field is a union that can hold an integer or a pointer.  It is
   *     used by stream implementations to store file descriptors or `FILE*`
   *     pointers.
   *
   *   pathname ::
   *     This field is completely ignored by FreeType.  However, it is often
   *     useful during debugging to use it to store the stream's filename
   *     (where available).
   *
   *   read ::
   *     The stream's input function.
   *
   *   close ::
   *     The stream's close function.
   *
   *   memory ::
   *     The memory manager to use to preload frames.  This is set internally
   *     by FreeType and shouldn't be touched by stream implementations.
   *
   *   cursor ::
   *     This field is set and used internally by FreeType when parsing
   *     frames.  In particular, the `FT_GET_XXX` macros use this instead of
   *     the `pos` field.
   *
   *   limit ::
   *     This field is set and used internally by FreeType when parsing
   *     frames.
   *
   */
  typedef struct  FT_StreamRec_
  {
    unsigned char*       base;
    unsigned long        size;
    unsigned long        pos;

FT_StreamDesc        descriptor;
    FT_StreamDesc        pathname;
    FT_Stream_IoFunc     read;
    FT_Stream_CloseFunc  close;

FT_Memory            memory;
    unsigned char*       cursor;
    unsigned char*       limit;

} FT_StreamRec;

/* */

FT_END_HEADER

#endif /* FTSYSTEM_H_ */

/* END */

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