Update freetype to 2.12.1

ftdebug.c files are new, adapted the import script to copy the source
file for Windows as well.

Replaced the CMakeLists.txt content that was imported from the .pro file
with the respective variables and logic from the freetype CMakeLists.txt
file, which should make it easier to maintain this next time.

Pick-to: 6.4 6.3 6.2 5.15 5.12
Fixes: QTBUG-105032
Change-Id: I1e846167b268df4b1b0a50dcec602def1a0bdcb4
Reviewed-by: Kai Koehne <kai.koehne@qt.io>

1 files changed, 15 insertions, 24 deletions

diff --git a/src/3rdparty/freetype/src/autofit/afloader.c b/src/3rdparty/freetype/src/autofit/afloader.c
index c35d85c4cf..e55183a509 100644
--- a/src/3rdparty/freetype/src/autofit/afloader.c
+++ b/src/3rdparty/freetype/src/autofit/afloader.c
@@ -4,7 +4,7 @@
  *
  *   Auto-fitter glyph loading routines (body).
  *
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2022 by
  * David Turner, Robert Wilhelm, and Werner Lemberg.
  *
  * This file is part of the FreeType project, and may only be used,
@@ -105,7 +105,6 @@
                               globals->stem_darkening_for_ppem;
 
     FT_Fixed  em_size  = af_intToFixed( face->units_per_EM );
-    FT_Fixed  em_ratio = FT_DivFix( af_intToFixed( 1000 ), em_size );
 
     FT_Matrix  scale_down_matrix = { 0x10000L, 0, 0, 0x10000L };
 
@@ -142,12 +141,11 @@
 
 
       darken_by_font_units_x =
-        af_intToFixed( af_loader_compute_darkening( loader,
-                                                    face,
-                                                    stdVW ) );
-      darken_x = FT_DivFix( FT_MulFix( darken_by_font_units_x,
-                                       size_metrics->x_scale ),
-                            em_ratio );
+         af_loader_compute_darkening( loader,
+                                      face,
+                                      stdVW ) ;
+      darken_x = FT_MulFix( darken_by_font_units_x,
+                            size_metrics->x_scale );
 
       globals->standard_vertical_width = stdVW;
       globals->stem_darkening_for_ppem = size_metrics->x_ppem;
@@ -161,12 +159,11 @@
 
 
       darken_by_font_units_y =
-        af_intToFixed( af_loader_compute_darkening( loader,
-                                                    face,
-                                                    stdHW ) );
-      darken_y = FT_DivFix( FT_MulFix( darken_by_font_units_y,
-                                       size_metrics->y_scale ),
-                            em_ratio );
+         af_loader_compute_darkening( loader,
+                                      face,
+                                      stdHW ) ;
+      darken_y = FT_MulFix( darken_by_font_units_y,
+                            size_metrics->y_scale );
 
       globals->standard_horizontal_width = stdHW;
       globals->stem_darkening_for_ppem   = size_metrics->x_ppem;
@@ -300,12 +297,6 @@
     if ( error )
       goto Exit;
 
-#ifdef FT_OPTION_AUTOFIT2
-    /* XXX: undocumented hook to activate the latin2 writing system. */
-    if ( load_flags & ( 1UL << 20 ) )
-      style_options = AF_STYLE_LTN2_DFLT;
-#endif
-
     /*
      * Glyphs (really code points) are assigned to scripts.  Script
      * analysis is done lazily: For each glyph that passes through here,
@@ -482,8 +473,8 @@
           FT_Pos  pp2x = loader->pp2.x;
 
 
-          loader->pp1.x = FT_PIX_ROUND( pp1x + hints->xmin_delta );
-          loader->pp2.x = FT_PIX_ROUND( pp2x + hints->xmax_delta );
+          loader->pp1.x = FT_PIX_ROUND( pp1x );
+          loader->pp2.x = FT_PIX_ROUND( pp2x );
 
           slot->lsb_delta = loader->pp1.x - pp1x;
           slot->rsb_delta = loader->pp2.x - pp2x;
@@ -594,7 +585,7 @@
    *
    * XXX: Currently a crude adaption of the original algorithm.  Do better?
    */
-  FT_LOCAL_DEF( FT_Int32 )
+  FT_LOCAL_DEF( FT_Fixed )
   af_loader_compute_darkening( AF_Loader  loader,
                                FT_Face    face,
                                FT_Pos     standard_width )
@@ -713,7 +704,7 @@
     }
 
     /* Convert darken_amount from per 1000 em to true character space. */
-    return af_fixedToInt( FT_DivFix( darken_amount, em_ratio ) );
+    return FT_DivFix( darken_amount, em_ratio );
   }