godot/thirdparty/freetype/src/base/ftbitmap.c

/****************************************************************************
 *
 * ftbitmap.c
 *
 *   FreeType utility functions for bitmaps (body).
 *
 * Copyright (C) 2004-2023 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.
 *
 */


#include <freetype/internal/ftdebug.h>

#include <freetype/ftbitmap.h>
#include <freetype/ftimage.h>
#include <freetype/internal/ftobjs.h>


  /**************************************************************************
   *
   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
   * messages during execution.
   */
#undef  FT_COMPONENT
#define FT_COMPONENT …


  static
  const FT_Bitmap  null_bitmap = …;


  /* documentation is in ftbitmap.h */

  FT_EXPORT_DEF( void )
  FT_Bitmap_Init( FT_Bitmap  *abitmap )
  { … }


  /* deprecated function name; retained for ABI compatibility */

  FT_EXPORT_DEF( void )
  FT_Bitmap_New( FT_Bitmap  *abitmap )
  { … }


  /* documentation is in ftbitmap.h */

  FT_EXPORT_DEF( FT_Error )
  FT_Bitmap_Copy( FT_Library        library,
                  const FT_Bitmap  *source,
                  FT_Bitmap        *target)
  { … }


  /* Enlarge `bitmap' horizontally and vertically by `xpixels' */
  /* and `ypixels', respectively.                              */

  static FT_Error
  ft_bitmap_assure_buffer( FT_Memory   memory,
                           FT_Bitmap*  bitmap,
                           FT_UInt     xpixels,
                           FT_UInt     ypixels )
  { … }


  /* documentation is in ftbitmap.h */

  FT_EXPORT_DEF( FT_Error )
  FT_Bitmap_Embolden( FT_Library  library,
                      FT_Bitmap*  bitmap,
                      FT_Pos      xStrength,
                      FT_Pos      yStrength )
  { … }


  static FT_Byte
  ft_gray_for_premultiplied_srgb_bgra( const FT_Byte*  bgra )
  { … }


  /* documentation is in ftbitmap.h */

  FT_EXPORT_DEF( FT_Error )
  FT_Bitmap_Convert( FT_Library        library,
                     const FT_Bitmap  *source,
                     FT_Bitmap        *target,
                     FT_Int            alignment )
  { … }


  /* documentation is in ftbitmap.h */

  FT_EXPORT_DEF( 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 )
  { … }


  /* documentation is in ftbitmap.h */

  FT_EXPORT_DEF( FT_Error )
  FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot  slot )
  { … }


  /* documentation is in ftbitmap.h */

  FT_EXPORT_DEF( FT_Error )
  FT_Bitmap_Done( FT_Library  library,
                  FT_Bitmap  *bitmap )
  { … }


/* END */