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diff --git a/3rdparty/include/freetype/ftsizes.h b/3rdparty/include/freetype/ftsizes.h
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+/***************************************************************************/
+/*                                                                         */
+/*  ftsizes.h                                                              */
+/*                                                                         */
+/*    FreeType size objects management (specification).                    */
+/*                                                                         */
+/*  Copyright 1996-2018 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.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* Typical application would normally not need to use these functions.   */
+  /* However, they have been placed in a public API for the rare cases     */
+  /* where they are needed.                                                */
+  /*                                                                       */
+  /*************************************************************************/
+
+
+#ifndef FTSIZES_H_
+#define FTSIZES_H_
+
+
+#include <ft2build.h>
+#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
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Section>                                                             */
+  /*    sizes_management                                                   */
+  /*                                                                       */
+  /* <Title>                                                               */
+  /*    Size Management                                                    */
+  /*                                                                       */
+  /* <Abstract>                                                            */
+  /*    Managing multiple sizes per face.                                  */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    When creating a new face object (e.g., with @FT_New_Face), an      */
+  /*    @FT_Size object is automatically created and used to store all     */
+  /*    pixel-size dependent information, available in the `face->size'    */
+  /*    field.                                                             */
+  /*                                                                       */
+  /*    It is however possible to create more sizes for a given face,      */
+  /*    mostly in order to manage several character pixel sizes of the     */
+  /*    same font family and style.  See @FT_New_Size and @FT_Done_Size.   */
+  /*                                                                       */
+  /*    Note that @FT_Set_Pixel_Sizes and @FT_Set_Char_Size only           */
+  /*    modify the contents of the current `active' size; you thus need    */
+  /*    to use @FT_Activate_Size to change it.                             */
+  /*                                                                       */
+  /*    99% of applications won't need the functions provided here,        */
+  /*    especially if they use the caching sub-system, so be cautious      */
+  /*    when using these.                                                  */
+  /*                                                                       */
+  /*************************************************************************/
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_New_Size                                                        */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Create a new size object from a given face object.                 */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    face :: A handle to a parent face object.                          */
+  /*                                                                       */
+  /* <Output>                                                              */
+  /*    asize :: A handle to a new size object.                            */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    FreeType error code.  0~means success.                             */
+  /*                                                                       */
+  /* <Note>                                                                */
+  /*    You need to call @FT_Activate_Size in order to select the new size */
+  /*    for upcoming calls to @FT_Set_Pixel_Sizes, @FT_Set_Char_Size,      */
+  /*    @FT_Load_Glyph, @FT_Load_Char, etc.                                */
+  /*                                                                       */
+  FT_EXPORT( FT_Error )
+  FT_New_Size( FT_Face   face,
+               FT_Size*  size );
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Done_Size                                                       */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Discard a given size object.  Note that @FT_Done_Face              */
+  /*    automatically discards all size objects allocated with             */
+  /*    @FT_New_Size.                                                      */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    size :: A handle to a target size object.                          */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    FreeType error code.  0~means success.                             */
+  /*                                                                       */
+  FT_EXPORT( FT_Error )
+  FT_Done_Size( FT_Size  size );
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Activate_Size                                                   */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Even though it is possible to create several size objects for a    */
+  /*    given face (see @FT_New_Size for details), functions like          */
+  /*    @FT_Load_Glyph or @FT_Load_Char only use the one that has been     */
+  /*    activated last to determine the `current character pixel size'.    */
+  /*                                                                       */
+  /*    This function can be used to `activate' a previously created size  */
+  /*    object.                                                            */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    size :: A handle to a target size object.                          */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    FreeType error code.  0~means success.                             */
+  /*                                                                       */
+  /* <Note>                                                                */
+  /*    If `face' is the size's parent face object, this function changes  */
+  /*    the value of `face->size' to the input size handle.                */
+  /*                                                                       */
+  FT_EXPORT( FT_Error )
+  FT_Activate_Size( FT_Size  size );
+
+  /* */
+
+
+FT_END_HEADER
+
+#endif /* FTSIZES_H_ */
+
+
+/* END */