[freetype2] signed_OFF3 eaa216e: Signed 24-bit values need sign expansion into 32 bits. Only PFR driver, only in bitmap strikes, and

[Werner Lemberg]

branch: signed_OFF3
commit eaa216ea77bc2fe222b47ea13cee8fcdeba01161
Author: Alexei Podtelezhnikov <apodtele@gmail.com>
Commit: Alexei Podtelezhnikov <apodtele@gmail.com>

    Signed 24-bit values need sign expansion into 32 bits. Only PFR driver, 
only in bitmap strikes, and
    only conditionally uses the signed 24-bit values to specify the bitmap 
positioning and advance.
    Therefore this bug could never be captured.
---
 include/freetype/internal/ftstream.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/freetype/internal/ftstream.h 
b/include/freetype/internal/ftstream.h
index 72dd585..187eaa6 100644
--- a/include/freetype/internal/ftstream.h
+++ b/include/freetype/internal/ftstream.h
@@ -196,9 +196,9 @@ FT_BEGIN_HEADER
                                        FT_BYTE_U32( p, 2,  8 ) | \
                                        FT_BYTE_U32( p, 3,  0 ) )
 
-#define FT_PEEK_OFF3( p )  FT_INT32( FT_BYTE_U32( p, 0, 16 ) | \
-                                     FT_BYTE_U32( p, 1,  8 ) | \
-                                     FT_BYTE_U32( p, 2,  0 ) )
+#define FT_PEEK_OFF3( p )  ( FT_INT32( FT_BYTE_U32( p, 0, 24 ) | \
+                                       FT_BYTE_U32( p, 1, 16 ) | \
+                                       FT_BYTE_U32( p, 2,  8 ) ) >> 8 )
 
 #define FT_PEEK_UOFF3( p )  FT_UINT32( FT_BYTE_U32( p, 0, 16 ) | \
                                        FT_BYTE_U32( p, 1,  8 ) | \
@@ -220,9 +220,9 @@ FT_BEGIN_HEADER
                                           FT_BYTE_U32( p, 1,  8 ) | \
                                           FT_BYTE_U32( p, 0,  0 ) )
 
-#define FT_PEEK_OFF3_LE( p )  FT_INT32( FT_BYTE_U32( p, 2, 16 ) | \
-                                        FT_BYTE_U32( p, 1,  8 ) | \
-                                        FT_BYTE_U32( p, 0,  0 ) )
+#define FT_PEEK_OFF3_LE( p )  ( FT_INT32( FT_BYTE_U32( p, 2, 24 ) | \
+                                          FT_BYTE_U32( p, 1, 16 ) | \
+                                          FT_BYTE_U32( p, 0,  8 ) ) >> 8 )
 
 #define FT_PEEK_UOFF3_LE( p )  FT_UINT32( FT_BYTE_U32( p, 2, 16 ) | \
                                           FT_BYTE_U32( p, 1,  8 ) | \