Upgraded freetype to 2.5.0.1

4 files changed, 114 insertions, 74 deletions

diff --git a/freetype/src/raster/ftraster.c b/freetype/src/raster/ftraster.c
index 7d5bcaef5..bbd503d97 100644
--- a/freetype/src/raster/ftraster.c
+++ b/freetype/src/raster/ftraster.c
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    The FreeType glyph rasterizer (body).                                */
 /*                                                                         */
-/*  Copyright 1996-2003, 2005, 2007-2012 by                                */
+/*  Copyright 1996-2003, 2005, 2007-2013 by                                */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -179,6 +179,9 @@
 
 #ifdef _STANDALONE_
 
+  /* Auxiliary macros for token concatenation. */
+#define FT_ERR_XCAT( x, y )  x ## y
+#define FT_ERR_CAT( x, y )   FT_ERR_XCAT( x, y )
 
   /* This macro is used to indicate that a function parameter is unused. */
   /* Its purpose is simply to reduce compiler warnings.  Note also that  */
@@ -187,7 +190,7 @@
 #define FT_UNUSED( x )  (x) = (x)
 
   /* Disable the tracing mechanism for simplicity -- developers can      */
-  /* activate it easily by redefining these two macros.                  */
+  /* activate it easily by redefining these macros.                      */
 #ifndef FT_ERROR
 #define FT_ERROR( x )  do { } while ( 0 )     /* nothing */
 #endif
@@ -198,6 +201,10 @@
 #define FT_TRACE6( x )  do { } while ( 0 )    /* nothing */
 #endif
 
+#ifndef FT_THROW
+#define FT_THROW( e )  FT_ERR_CAT( Raster_Err_, e )
+#endif
+
 #define Raster_Err_None          0
 #define Raster_Err_Not_Ini      -1
 #define Raster_Err_Overflow     -2
@@ -224,11 +231,11 @@
 
 
 #include FT_INTERNAL_OBJECTS_H
-#include FT_INTERNAL_DEBUG_H        /* for FT_TRACE() and FT_ERROR() */
+#include FT_INTERNAL_DEBUG_H       /* for FT_TRACE, FT_ERROR, and FT_THROW */
 
 #include "rasterrs.h"
 
-#define Raster_Err_None         Raster_Err_Ok
+#define Raster_Err_None         FT_Err_Ok
 #define Raster_Err_Not_Ini      Raster_Err_Raster_Uninitialized
 #define Raster_Err_Overflow     Raster_Err_Raster_Overflow
 #define Raster_Err_Neg_Height   Raster_Err_Raster_Negative_Height
@@ -303,6 +310,7 @@
   typedef short           Short;
   typedef unsigned short  UShort, *PUShort;
   typedef long            Long, *PLong;
+  typedef unsigned long   ULong;
 
   typedef unsigned char   Byte, *PByte;
   typedef char            Bool;
@@ -441,12 +449,14 @@
 
 #define FLOOR( x )    ( (x) & -ras.precision )
 #define CEILING( x )  ( ( (x) + ras.precision - 1 ) & -ras.precision )
-#define TRUNC( x )    ( (signed long)(x) >> ras.precision_bits )
+#define TRUNC( x )    ( (Long)(x) >> ras.precision_bits )
 #define FRAC( x )     ( (x) & ( ras.precision - 1 ) )
-#define SCALED( x )   ( ( (x) << ras.scale_shift ) - ras.precision_half )
+#define SCALED( x )   ( ( (ULong)(x) << ras.scale_shift ) - ras.precision_half )
 
-#define IS_BOTTOM_OVERSHOOT( x )  ( CEILING( x ) - x >= ras.precision_half )
-#define IS_TOP_OVERSHOOT( x )     ( x - FLOOR( x ) >= ras.precision_half )
+#define IS_BOTTOM_OVERSHOOT( x ) \
+          (Bool)( CEILING( x ) - x >= ras.precision_half )
+#define IS_TOP_OVERSHOOT( x )    \
+          (Bool)( x - FLOOR( x ) >= ras.precision_half )
 
   /* The most used variables are positioned at the top of the structure. */
   /* Thus, their offset can be coded with less opcodes, resulting in a   */
@@ -655,7 +665,7 @@
   /*    Set precision variables according to param flag.                   */
   /*                                                                       */
   /* <Input>                                                               */
-  /*    High :: Set to True for high precision (typically for ppem < 18),  */
+  /*    High :: Set to True for high precision (typically for ppem < 24),  */
   /*            false otherwise.                                           */
   /*                                                                       */
   static void
@@ -735,7 +745,7 @@
 
     if ( ras.top >= ras.maxBuff )
     {
-      ras.error = Raster_Err_Overflow;
+      ras.error = FT_THROW( Overflow );
       return FAILURE;
     }
 
@@ -765,7 +775,7 @@
 
     default:
       FT_ERROR(( "New_Profile: invalid profile direction\n" ));
-      ras.error = Raster_Err_Invalid;
+      ras.error = FT_THROW( Invalid );
       return FAILURE;
     }
 
@@ -798,8 +808,7 @@
   static Bool
   End_Profile( RAS_ARGS Bool  overshoot )
   {
-    Long      h;
-    PProfile  oldProfile;
+    Long  h;
 
 
     h = (Long)( ras.top - ras.cProfile->offset );
@@ -807,12 +816,15 @@
     if ( h < 0 )
     {
       FT_ERROR(( "End_Profile: negative height encountered\n" ));
-      ras.error = Raster_Err_Neg_Height;
+      ras.error = FT_THROW( Neg_Height );
       return FAILURE;
     }
 
     if ( h > 0 )
     {
+      PProfile  oldProfile;
+
+
       FT_TRACE6(( "Ending profile %p, start = %ld, height = %ld\n",
                   ras.cProfile, ras.cProfile->start, h ));
 
@@ -840,7 +852,7 @@
     if ( ras.top >= ras.maxBuff )
     {
       FT_TRACE1(( "overflow in End_Profile\n" ));
-      ras.error = Raster_Err_Overflow;
+      ras.error = FT_THROW( Overflow );
       return FAILURE;
     }
 
@@ -869,7 +881,7 @@
   Insert_Y_Turn( RAS_ARGS Int  y )
   {
     PLong  y_turns;
-    Int    y2, n;
+    Int    n;
 
 
     n       = ras.numTurns - 1;
@@ -883,7 +895,9 @@
     if ( n >= 0 && y > y_turns[n] )
       while ( n >= 0 )
       {
-        y2 = (Int)y_turns[n];
+        Int  y2 = (Int)y_turns[n];
+
+
         y_turns[n] = y;
         y = y2;
         n--;
@@ -894,7 +908,7 @@
       ras.maxBuff--;
       if ( ras.maxBuff <= ras.top )
       {
-        ras.error = Raster_Err_Overflow;
+        ras.error = FT_THROW( Overflow );
         return FAILURE;
       }
       ras.numTurns++;
@@ -919,7 +933,6 @@
   static Bool
   Finalize_Profile_Table( RAS_ARG )
   {
-    Int       bottom, top;
     UShort    n;
     PProfile  p;
 
@@ -931,6 +944,9 @@
     {
       while ( n > 0 )
       {
+        Int  bottom, top;
+
+
         if ( n > 1 )
           p->link = (PProfile)( p->offset + p->height );
         else
@@ -1145,7 +1161,7 @@
     size = e2 - e1 + 1;
     if ( ras.top + size >= ras.maxBuff )
     {
-      ras.error = Raster_Err_Overflow;
+      ras.error = FT_THROW( Overflow );
       return FAILURE;
     }
 
@@ -1320,7 +1336,7 @@
     if ( ( top + TRUNC( e2 - e ) + 1 ) >= ras.maxBuff )
     {
       ras.top   = top;
-      ras.error = Raster_Err_Overflow;
+      ras.error = FT_THROW( Overflow );
       return FAILURE;
     }
 
@@ -1995,7 +2011,7 @@
     return SUCCESS;
 
   Invalid_Outline:
-    ras.error = Raster_Err_Invalid;
+    ras.error = FT_THROW( Invalid );
 
   Fail:
     return FAILURE;
@@ -2024,8 +2040,6 @@
     int       i;
     unsigned  start;
 
-    PProfile  lastProfile;
-
 
     ras.fProfile = NULL;
     ras.joint    = FALSE;
@@ -2043,7 +2057,8 @@
 
     for ( i = 0; i < ras.outline.n_contours; i++ )
     {
-      Bool  o;
+      PProfile  lastProfile;
+      Bool      o;
 
 
       ras.state    = Unknown_State;
@@ -2267,8 +2282,6 @@
                                 PProfile    right )
   {
     Long   e1, e2;
-    int    c1, c2;
-    Byte   f1, f2;
     Byte*  target;
 
     FT_UNUSED( y );
@@ -2287,6 +2300,10 @@
 
     if ( e2 >= 0 && e1 < ras.bWidth )
     {
+      int   c1, c2;
+      Byte  f1, f2;
+
+
       if ( e1 < 0 )
         e1 = 0;
       if ( e2 >= ras.bWidth )
@@ -2510,21 +2527,24 @@
                                   PProfile    left,
                                   PProfile    right )
   {
-    Long   e1, e2;
-    PByte  bits;
-    Byte   f1;
-
     FT_UNUSED( left );
     FT_UNUSED( right );
 
 
     if ( x2 - x1 < ras.precision )
     {
+      Long  e1, e2;
+
+
       e1 = CEILING( x1 );
       e2 = FLOOR  ( x2 );
 
       if ( e1 == e2 )
       {
+        Byte   f1;
+        PByte  bits;
+
+
         bits = ras.bTarget + ( y >> 3 );
         f1   = (Byte)( 0x80 >> ( y & 7 ) );
 
@@ -2721,8 +2741,6 @@
   static void
   Vertical_Gray_Sweep_Step( RAS_ARG )
   {
-    Int     c1, c2;
-    PByte   pix, bit, bit2;
     short*  count = (short*)count_table;
     Byte*   grays;
 
@@ -2731,6 +2749,9 @@
 
     if ( ras.traceOfs > ras.gray_width )
     {
+      PByte  pix;
+
+
       pix   = ras.gTarget + ras.traceG + ras.gray_min_x * 4;
       grays = ras.grays;
 
@@ -2741,6 +2762,9 @@
         Int   last_bit   = last_pixel & 3;
         Bool  over       = 0;
 
+        Int    c1, c2;
+        PByte  bit, bit2;
+
 
         if ( ras.gray_max_x >= last_cell && last_bit != 3 )
         {
@@ -2833,7 +2857,6 @@
   {
     Long   e1, e2;
     PByte  pixel;
-    Byte   color;
 
 
     /* During the horizontal sweep, we only take care of drop-outs */
@@ -2887,6 +2910,9 @@
 
     if ( e1 >= 0 )
     {
+      Byte  color;
+
+
       if ( x2 - x1 >= ras.precision_half )
         color = ras.grays[2];
       else
@@ -2964,7 +2990,7 @@
     /* check the Y-turns */
     if ( ras.numTurns == 0 )
     {
-      ras.error = Raster_Err_Invalid;
+      ras.error = FT_THROW( Invalid );
       return FAILURE;
     }
 
@@ -3205,7 +3231,7 @@
         if ( ras.band_top >= 7 || k < i )
         {
           ras.band_top = 0;
-          ras.error    = Raster_Err_Invalid;
+          ras.error    = FT_THROW( Invalid );
 
           return ras.error;
         }
@@ -3394,7 +3420,7 @@
   {
     FT_UNUSED_RASTER;
 
-    return Raster_Err_Unsupported;
+    return FT_THROW( Unsupported );
   }
 
 #endif /* !FT_RASTER_OPTION_ANTI_ALIASING */
@@ -3499,7 +3525,8 @@
 
 
         raster->buffer      = pool_base + ( ( sizeof ( *worker ) + 7 ) & ~7 );
-        raster->buffer_size = pool_base + pool_size - (char*)raster->buffer;
+        raster->buffer_size = (long)( pool_base + pool_size -
+                                        (char*)raster->buffer );
         raster->worker      = worker;
       }
       else
@@ -3549,37 +3576,37 @@
 
 
     if ( !raster || !raster->buffer || !raster->buffer_size )
-      return Raster_Err_Not_Ini;
+      return FT_THROW( Not_Ini );
 
     if ( !outline )
-      return Raster_Err_Invalid;
+      return FT_THROW( Invalid );
 
     /* return immediately if the outline is empty */
     if ( outline->n_points == 0 || outline->n_contours <= 0 )
       return Raster_Err_None;
 
     if ( !outline->contours || !outline->points )
-      return Raster_Err_Invalid;
+      return FT_THROW( Invalid );
 
     if ( outline->n_points !=
            outline->contours[outline->n_contours - 1] + 1 )
-      return Raster_Err_Invalid;
+      return FT_THROW( Invalid );
 
     worker = raster->worker;
 
     /* this version of the raster does not support direct rendering, sorry */
     if ( params->flags & FT_RASTER_FLAG_DIRECT )
-      return Raster_Err_Unsupported;
+      return FT_THROW( Unsupported );
 
     if ( !target_map )
-      return Raster_Err_Invalid;
+      return FT_THROW( Invalid );
 
     /* nothing to do */
     if ( !target_map->width || !target_map->rows )
       return Raster_Err_None;
 
     if ( !target_map->buffer )
-      return Raster_Err_Invalid;
+      return FT_THROW( Invalid );
 
     ras.outline = *outline;
     ras.target  = *target_map;
diff --git a/freetype/src/raster/ftrend1.c b/freetype/src/raster/ftrend1.c
index 859cb7d86..aa7f6d566 100644
--- a/freetype/src/raster/ftrend1.c
+++ b/freetype/src/raster/ftrend1.c
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    The FreeType glyph rasterizer interface (body).                      */
 /*                                                                         */
-/*  Copyright 1996-2003, 2005, 2006, 2011 by                               */
+/*  Copyright 1996-2003, 2005, 2006, 2011, 2013 by                         */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -17,6 +17,7 @@
 
 
 #include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
 #include FT_INTERNAL_OBJECTS_H
 #include FT_OUTLINE_H
 #include "ftrend1.h"
@@ -37,7 +38,7 @@
                                                library->raster_pool,
                                                library->raster_pool_size );
 
-    return Raster_Err_Ok;
+    return FT_Err_Ok;
   }
 
 
@@ -61,12 +62,12 @@
                         const FT_Matrix*  matrix,
                         const FT_Vector*  delta )
   {
-    FT_Error error = Raster_Err_Ok;
+    FT_Error error = FT_Err_Ok;
 
 
     if ( slot->format != render->glyph_format )
     {
-      error = Raster_Err_Invalid_Argument;
+      error = FT_THROW( Invalid_Argument );
       goto Exit;
     }
 
@@ -114,7 +115,7 @@
     /* check glyph image format */
     if ( slot->format != render->glyph_format )
     {
-      error = Raster_Err_Invalid_Argument;
+      error = FT_THROW( Invalid_Argument );
       goto Exit;
     }
 
@@ -124,13 +125,13 @@
     {
       /* raster1 is only capable of producing monochrome bitmaps */
       if ( render->clazz == &ft_raster1_renderer_class )
-        return Raster_Err_Cannot_Render_Glyph;
+        return FT_THROW( Cannot_Render_Glyph );
     }
     else
     {
       /* raster5 is only capable of producing 5-gray-levels bitmaps */
       if ( render->clazz == &ft_raster5_renderer_class )
-        return Raster_Err_Cannot_Render_Glyph;
+        return FT_THROW( Cannot_Render_Glyph );
     }
 #else /* FT_CONFIG_OPTION_PIC */
     /* When PIC is enabled, we cannot get to the class object      */
@@ -142,13 +143,13 @@
     {
       /* raster1 is only capable of producing monochrome bitmaps */
       if ( render->clazz->root.module_name[6] == '1' )
-        return Raster_Err_Cannot_Render_Glyph;
+        return FT_THROW( Cannot_Render_Glyph );
     }
     else
     {
       /* raster5 is only capable of producing 5-gray-levels bitmaps */
       if ( render->clazz->root.module_name[6] == '5' )
-        return Raster_Err_Cannot_Render_Glyph;
+        return FT_THROW( Cannot_Render_Glyph );
     }
 #endif /* FT_CONFIG_OPTION_PIC */
 
@@ -179,7 +180,7 @@
 
     if ( width > FT_USHORT_MAX || height > FT_USHORT_MAX )
     {
-      error = Raster_Err_Invalid_Argument;
+      error = FT_THROW( Invalid_Argument );
       goto Exit;
     }
 
diff --git a/freetype/src/raster/rastpic.c b/freetype/src/raster/rastpic.c
index 853286309..5e9f7cc9c 100644
--- a/freetype/src/raster/rastpic.c
+++ b/freetype/src/raster/rastpic.c
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    The FreeType position independent code services for raster module.   */
 /*                                                                         */
-/*  Copyright 2009, 2010, 2012 by                                          */
+/*  Copyright 2009, 2010, 2012, 2013 by                                    */
 /*  Oran Agra and Mickey Gabel.                                            */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -22,22 +22,26 @@
 #include "rastpic.h"
 #include "rasterrs.h"
 
+
 #ifdef FT_CONFIG_OPTION_PIC
 
   /* forward declaration of PIC init functions from ftraster.c */
   void
   FT_Init_Class_ft_standard_raster( FT_Raster_Funcs*  funcs );
 
+
   void
   ft_raster1_renderer_class_pic_free( FT_Library  library )
   {
     FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Memory  memory = library->memory;
+    FT_Memory          memory        = library->memory;
 
 
     if ( pic_container->raster )
     {
-      RasterPIC* container = (RasterPIC*)pic_container->raster;
+      RasterPIC*  container = (RasterPIC*)pic_container->raster;
+
+
       if ( --container->ref_count )
         return;
       FT_FREE( container );
@@ -49,14 +53,14 @@
   FT_Error
   ft_raster1_renderer_class_pic_init( FT_Library  library )
   {
-    FT_PIC_Container* pic_container = &library->pic_container;
-    FT_Error          error         = Raster_Err_Ok;
-    RasterPIC*        container     = NULL;
-    FT_Memory         memory        = library->memory;
+    FT_PIC_Container*  pic_container = &library->pic_container;
+    FT_Error           error         = FT_Err_Ok;
+    RasterPIC*         container     = NULL;
+    FT_Memory          memory        = library->memory;
 
 
-    /* since this function also serve raster5 renderer,
-       it implements reference counting */
+    /* since this function also serves raster5 renderer, */
+    /* it implements reference counting                  */
     if ( pic_container->raster )
     {
       ((RasterPIC*)pic_container->raster)->ref_count++;
@@ -68,16 +72,17 @@
       return error;
     FT_MEM_SET( container, 0, sizeof ( *container ) );
     pic_container->raster = container;
+
     container->ref_count = 1;
 
-    /* initialize pointer table - this is how the module usually expects this data */
+    /* initialize pointer table -                       */
+    /* this is how the module usually expects this data */
     FT_Init_Class_ft_standard_raster( &container->ft_standard_raster );
-/*Exit:*/
-    if( error )
-      ft_raster1_renderer_class_pic_free( library );
+
     return error;
   }
 
+
   /* re-route these init and free functions to the above functions */
   FT_Error
   ft_raster5_renderer_class_pic_init( FT_Library  library )
@@ -85,6 +90,7 @@
     return ft_raster1_renderer_class_pic_init( library );
   }
 
+
   void
   ft_raster5_renderer_class_pic_free( FT_Library  library )
   {
diff --git a/freetype/src/raster/rastpic.h b/freetype/src/raster/rastpic.h
index 7822a24b4..e0ddba624 100644
--- a/freetype/src/raster/rastpic.h
+++ b/freetype/src/raster/rastpic.h
@@ -24,19 +24,25 @@ FT_BEGIN_HEADER
 
 #include FT_INTERNAL_PIC_H
 
+
 #ifndef FT_CONFIG_OPTION_PIC
-#define FT_STANDARD_RASTER_GET     ft_standard_raster
+
+#define FT_STANDARD_RASTER_GET  ft_standard_raster
 
 #else /* FT_CONFIG_OPTION_PIC */
 
-  typedef struct RasterPIC_
+  typedef struct  RasterPIC_
   {
-    int ref_count;
-    FT_Raster_Funcs ft_standard_raster;
+    int              ref_count;
+    FT_Raster_Funcs  ft_standard_raster;
+
   } RasterPIC;
 
-#define GET_PIC(lib)               ((RasterPIC*)((lib)->pic_container.raster))
-#define FT_STANDARD_RASTER_GET     (GET_PIC(library)->ft_standard_raster)
+
+#define GET_PIC( lib )                                    \
+          ( (RasterPIC*)( (lib)->pic_container.raster ) )
+#define FT_STANDARD_RASTER_GET  ( GET_PIC( library )->ft_standard_raster )
+
 
   /* see rastpic.c for the implementation */
   void