Update to Freetype 2.13.0

Also adds a file to patches which is a required modification
to the update in order to make it compile.

Pick-to: 5.15 6.2 6.4 6.4.3 6.5
Fixes: QTBUG-111536
Change-Id: Iaabc1b7736cfd98217a8aff2b7f9bc65402d0451
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

2 files changed, 61 insertions, 61 deletions

diff --git a/src/3rdparty/freetype/src/pcf/pcfdrivr.c b/src/3rdparty/freetype/src/pcf/pcfdrivr.c
index 2a40af9e99..bfa6eacca4 100644
--- a/src/3rdparty/freetype/src/pcf/pcfdrivr.c
+++ b/src/3rdparty/freetype/src/pcf/pcfdrivr.c
@@ -104,26 +104,19 @@ THE SOFTWARE.
   pcf_cmap_char_index( FT_CMap    pcfcmap,  /* PCF_CMap */
                        FT_UInt32  charcode )
   {
-    PCF_CMap   cmap = (PCF_CMap)pcfcmap;
-    PCF_Enc    enc  = cmap->enc;
-    FT_UShort  charcodeRow;
-    FT_UShort  charcodeCol;
+    PCF_Enc  enc = ( (PCF_CMap)pcfcmap )->enc;
 
+    FT_UInt32  i = ( charcode >> 8   ) - enc->firstRow;
+    FT_UInt32  j = ( charcode & 0xFF ) - enc->firstCol;
+    FT_UInt32  h = enc->lastRow - enc->firstRow + 1;
+    FT_UInt32  w = enc->lastCol - enc->firstCol + 1;
 
-    if ( charcode > (FT_UInt32)( enc->lastRow  * 256 + enc->lastCol  ) ||
-         charcode < (FT_UInt32)( enc->firstRow * 256 + enc->firstCol ) )
-      return 0;
-
-    charcodeRow = (FT_UShort)( charcode >> 8 );
-    charcodeCol = (FT_UShort)( charcode & 0xFF );
 
-    if ( charcodeCol < enc->firstCol ||
-         charcodeCol > enc->lastCol  )
+    /* wrapped around "negative" values are also rejected */
+    if ( i >= h || j >= w )
       return 0;
 
-    return (FT_UInt)enc->offset[( charcodeRow - enc->firstRow ) *
-                                  ( enc->lastCol - enc->firstCol + 1 ) +
-                                charcodeCol - enc->firstCol];
+    return (FT_UInt)enc->offset[i * w + j];
   }
 
 
@@ -131,42 +124,33 @@ THE SOFTWARE.
   pcf_cmap_char_next( FT_CMap    pcfcmap,   /* PCF_CMap */
                       FT_UInt32  *acharcode )
   {
-    PCF_CMap   cmap      = (PCF_CMap)pcfcmap;
-    PCF_Enc    enc       = cmap->enc;
-    FT_UInt32  charcode  = *acharcode;
-    FT_UShort  charcodeRow;
-    FT_UShort  charcodeCol;
-    FT_UInt    result = 0;
+    PCF_Enc    enc = ( (PCF_CMap)pcfcmap )->enc;
+    FT_UInt32  charcode = *acharcode + 1;
 
+    FT_UInt32  i = ( charcode >> 8   ) - enc->firstRow;
+    FT_UInt32  j = ( charcode & 0xFF ) - enc->firstCol;
+    FT_UInt32  h = enc->lastRow - enc->firstRow + 1;
+    FT_UInt32  w = enc->lastCol - enc->firstCol + 1;
 
-    while ( charcode < (FT_UInt32)( enc->lastRow * 256 + enc->lastCol ) )
-    {
-      charcode++;
+    FT_UInt  result = 0;
 
-      if ( charcode < (FT_UInt32)( enc->firstRow * 256 + enc->firstCol ) )
-        charcode = (FT_UInt32)( enc->firstRow * 256 + enc->firstCol );
 
-      charcodeRow = (FT_UShort)( charcode >> 8 );
-      charcodeCol = (FT_UShort)( charcode & 0xFF );
+    /* adjust wrapped around "negative" values */
+    if ( (FT_Int32)i < 0 )
+      i = 0;
+    if ( (FT_Int32)j < 0 )
+      j = 0;
 
-      if ( charcodeCol < enc->firstCol )
-        charcodeCol = enc->firstCol;
-      else if ( charcodeCol > enc->lastCol )
+    for ( ; i < h; i++, j = 0 )
+      for ( ; j < w; j++ )
       {
-        charcodeRow++;
-        charcodeCol = enc->firstCol;
+        result = (FT_UInt)enc->offset[i * w + j];
+        if ( result != 0xFFFFU )
+          goto Exit;
       }
 
-      charcode = (FT_UInt32)( charcodeRow * 256 + charcodeCol );
-
-      result = (FT_UInt)enc->offset[( charcodeRow - enc->firstRow ) *
-                                      ( enc->lastCol - enc->firstCol + 1 ) +
-                                    charcodeCol - enc->firstCol];
-      if ( result != 0xFFFFU )
-        break;
-    }
-
-    *acharcode = charcode;
+  Exit:
+    *acharcode = ( ( i + enc->firstRow ) << 8 ) | ( j + enc->firstCol );
 
     return result;
   }
diff --git a/src/3rdparty/freetype/src/pcf/pcfutil.c b/src/3rdparty/freetype/src/pcf/pcfutil.c
index 5d3c00791f..9575726916 100644
--- a/src/3rdparty/freetype/src/pcf/pcfutil.c
+++ b/src/3rdparty/freetype/src/pcf/pcfutil.c
@@ -57,6 +57,34 @@ in this Software without prior written authorization from The Open Group.
   }
 
 
+#if defined( __clang__ )                                            || \
+    ( defined( __GNUC__ )                                          &&  \
+      ( __GNUC__ > 4 || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 8 ) ) )
+
+#define BSWAP16( x )  __builtin_bswap16( x )
+#define BSWAP32( x )  __builtin_bswap32( x )
+
+#elif defined( _MSC_VER ) && _MSC_VER >= 1300
+
+#pragma intrinsic( _byteswap_ushort )
+#pragma intrinsic( _byteswap_ulong )
+
+#define BSWAP16( x )  _byteswap_ushort( x )
+#define BSWAP32( x )  _byteswap_ulong( x )
+
+#else
+
+#define BSWAP16( x )                             \
+        (FT_UInt16)( ( ( ( x ) >> 8 ) & 0xff ) | \
+                     ( ( ( x ) & 0xff ) << 8 ) )
+#define BSWAP32( x )                   \
+        (FT_UInt32)( ( ( ( x ) & 0xff000000u ) >> 24 ) | \
+                     ( ( ( x ) & 0x00ff0000u ) >> 8  ) | \
+                     ( ( ( x ) & 0x0000ff00u ) << 8  ) | \
+                     ( ( ( x ) & 0x000000ffu ) << 24 ) )
+
+#endif
+
   /*
    * Invert byte order within each 16-bits of an array.
    */
@@ -65,15 +93,11 @@ in this Software without prior written authorization from The Open Group.
   TwoByteSwap( unsigned char*  buf,
                size_t          nbytes )
   {
-    for ( ; nbytes >= 2; nbytes -= 2, buf += 2 )
-    {
-      unsigned char  c;
+    FT_UInt16*  b = (FT_UInt16*)buf;
 
 
-      c      = buf[0];
-      buf[0] = buf[1];
-      buf[1] = c;
-    }
+    for ( ; nbytes >= 2; nbytes -= 2, b++ )
+      *b = BSWAP16( *b );
   }
 
   /*
@@ -84,19 +108,11 @@ in this Software without prior written authorization from The Open Group.
   FourByteSwap( unsigned char*  buf,
                 size_t          nbytes )
   {
-    for ( ; nbytes >= 4; nbytes -= 4, buf += 4 )
-    {
-      unsigned char  c;
-
+    FT_UInt32*  b = (FT_UInt32*)buf;
 
-      c      = buf[0];
-      buf[0] = buf[3];
-      buf[3] = c;
 
-      c      = buf[1];
-      buf[1] = buf[2];
-      buf[2] = c;
-    }
+    for ( ; nbytes >= 4; nbytes -= 4, b++ )
+      *b = BSWAP32( *b );
   }