Merge remote-tracking branch 'origin/5.14' into 5.15

Change-Id: I963b5f48b5d6f3500ca379fbd7f1a4290b570175

1 files changed, 100 insertions, 87 deletions

diff --git a/src/3rdparty/freetype/src/sfnt/ttmtx.c b/src/3rdparty/freetype/src/sfnt/ttmtx.c
index 6ddda95b56..b6725c962f 100644
--- a/src/3rdparty/freetype/src/sfnt/ttmtx.c
+++ b/src/3rdparty/freetype/src/sfnt/ttmtx.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttmtx.c                                                                */
-/*                                                                         */
-/*    Load the metrics tables common to TTF and OTF fonts (body).          */
-/*                                                                         */
-/*  Copyright 2006-2018 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.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttmtx.c
+ *
+ *   Load the metrics tables common to TTF and OTF fonts (body).
+ *
+ * Copyright (C) 2006-2019 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 <ft2build.h>
@@ -38,34 +38,37 @@
   /*            both the horizontal and vertical headers.               */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* 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.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * 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  trace_ttmtx
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_hmtx                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load the `hmtx' or `vmtx' table into a face object.                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: A handle to the target face object.                    */
-  /*                                                                       */
-  /*    stream   :: The input stream.                                      */
-  /*                                                                       */
-  /*    vertical :: A boolean flag.  If set, load `vmtx'.                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+#define FT_COMPONENT  ttmtx
+
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_hmtx
+   *
+   * @Description:
+   *   Load the `hmtx' or `vmtx' table into a face object.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   *   vertical ::
+   *     A boolean flag.  If set, load `vmtx'.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_hmtx( TT_Face    face,
                      FT_Stream  stream,
@@ -102,24 +105,27 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_hhea                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load the `hhea' or 'vhea' table into a face object.                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: A handle to the target face object.                    */
-  /*                                                                       */
-  /*    stream   :: The input stream.                                      */
-  /*                                                                       */
-  /*    vertical :: A boolean flag.  If set, load `vhea'.                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_hhea
+   *
+   * @Description:
+   *   Load the `hhea' or 'vhea' table into a face object.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   *   vertical ::
+   *     A boolean flag.  If set, load `vhea'.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_hhea( TT_Face    face,
                      FT_Stream  stream,
@@ -190,30 +196,35 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_get_metrics                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the horizontal or vertical metrics in font units for a      */
-  /*    given glyph.  The values are the left side bearing (top side       */
-  /*    bearing for vertical metrics) and advance width (advance height    */
-  /*    for vertical metrics).                                             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: A pointer to the TrueType face structure.              */
-  /*                                                                       */
-  /*    vertical :: If set to TRUE, get vertical metrics.                  */
-  /*                                                                       */
-  /*    gindex   :: The glyph index.                                       */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    abearing :: The bearing, either left side or top side.             */
-  /*                                                                       */
-  /*    aadvance :: The advance width or advance height, depending on      */
-  /*                the `vertical' flag.                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_get_metrics
+   *
+   * @Description:
+   *   Return the horizontal or vertical metrics in font units for a
+   *   given glyph.  The values are the left side bearing (top side
+   *   bearing for vertical metrics) and advance width (advance height
+   *   for vertical metrics).
+   *
+   * @Input:
+   *   face ::
+   *     A pointer to the TrueType face structure.
+   *
+   *   vertical ::
+   *     If set to TRUE, get vertical metrics.
+   *
+   *   gindex ::
+   *     The glyph index.
+   *
+   * @Output:
+   *   abearing ::
+   *     The bearing, either left side or top side.
+   *
+   *   aadvance ::
+   *     The advance width or advance height, depending on
+   *     the `vertical' flag.
+   */
   FT_LOCAL_DEF( void )
   tt_face_get_metrics( TT_Face     face,
                        FT_Bool     vertical,
@@ -269,7 +280,7 @@
       else
       {
         table_pos += 4 * ( k - 1 );
-        if ( table_pos + 4 > table_end )
+        if ( table_pos + 2 > table_end )
           goto NoData;
 
         if ( FT_STREAM_SEEK( table_pos ) ||
@@ -281,7 +292,9 @@
           *abearing = 0;
         else
         {
-          if ( !FT_STREAM_SEEK( table_pos ) )
+          if ( FT_STREAM_SEEK( table_pos ) )
+            *abearing = 0;
+          else
             (void)FT_READ_SHORT( *abearing );
         }
       }