Update To 11.40.268.0

[platform/framework/web/crosswalk.git] / src / third_party / freetype2 / src / src / autofit / afcjk.h

diff --git a/src/third_party/freetype2/src/src/autofit/afcjk.h b/src/third_party/freetype2/src/src/autofit/afcjk.h
index 0b20d4a..8416c0d 100644 (file)
--- a/src/third_party/freetype2/src/src/autofit/afcjk.h
+++ b/src/third_party/freetype2/src/src/autofit/afcjk.h
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    Auto-fitter hinting routines for CJK script (specification).         */
 /*                                                                         */
-/*  Copyright 2006, 2007 by                                                */
+/*  Copyright 2006, 2007, 2011 by                                          */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -20,6 +20,7 @@
 #define __AFCJK_H__
 
 #include "afhints.h"
+#include "aflatin.h"
 
 
 FT_BEGIN_HEADER
@@ -29,23 +30,106 @@ FT_BEGIN_HEADER
 
   AF_DECLARE_SCRIPT_CLASS(af_cjk_script_class)
 
+  /* CJK (global) metrics management */
+
+  /*
+   *  CJK glyphs tend to fill the square.  So we have both vertical and
+   *  horizontal blue zones.  But some glyphs have flat bounding strokes that
+   *  leave some space between neighbour glyphs.
+   */
+  enum
+  {
+    AF_CJK_BLUE_TOP,
+    AF_CJK_BLUE_BOTTOM,
+    AF_CJK_BLUE_LEFT,
+    AF_CJK_BLUE_RIGHT,
+
+    AF_CJK_BLUE_MAX
+  };
+
+
+#define AF_CJK_MAX_WIDTHS  16
+#define AF_CJK_MAX_BLUES   AF_CJK_BLUE_MAX
+
+
+  enum
+  {
+    AF_CJK_BLUE_ACTIVE     = 1 << 0,
+    AF_CJK_BLUE_IS_TOP     = 1 << 1,
+    AF_CJK_BLUE_IS_RIGHT   = 1 << 2,
+    AF_CJK_BLUE_ADJUSTMENT = 1 << 3,  /* used for scale adjustment */
+                                      /* optimization              */
+    AF_CJK_BLUE_FLAG_MAX
+  };
+
+
+  typedef struct  AF_CJKBlueRec_
+  {
+    AF_WidthRec  ref;
+    AF_WidthRec  shoot; /* undershoot */
+    FT_UInt      flags;
+
+  } AF_CJKBlueRec, *AF_CJKBlue;
+
+
+  typedef struct  AF_CJKAxisRec_
+  {
+    FT_Fixed       scale;
+    FT_Pos         delta;
+
+    FT_UInt        width_count;
+    AF_WidthRec    widths[AF_CJK_MAX_WIDTHS];
+    FT_Pos         edge_distance_threshold;
+    FT_Pos         standard_width;
+    FT_Bool        extra_light;
+
+    /* used for horizontal metrics too for CJK */
+    FT_Bool        control_overshoot;
+    FT_UInt        blue_count;
+    AF_CJKBlueRec  blues[AF_CJK_BLUE_MAX];
+
+    FT_Fixed       org_scale;
+    FT_Pos         org_delta;
+
+  } AF_CJKAxisRec, *AF_CJKAxis;
+
+
+  typedef struct  AF_CJKMetricsRec_
+  {
+    AF_ScriptMetricsRec  root;
+    FT_UInt              units_per_em;
+    AF_CJKAxisRec        axis[AF_DIMENSION_MAX];
+
+  } AF_CJKMetricsRec, *AF_CJKMetrics;
+
 
   FT_LOCAL( FT_Error )
-  af_cjk_metrics_init( AF_LatinMetrics  metrics,
-                       FT_Face          face );
+  af_cjk_metrics_init( AF_CJKMetrics  metrics,
+                       FT_Face        face );
 
   FT_LOCAL( void )
-  af_cjk_metrics_scale( AF_LatinMetrics  metrics,
-                        AF_Scaler        scaler );
+  af_cjk_metrics_scale( AF_CJKMetrics  metrics,
+                        AF_Scaler      scaler );
 
   FT_LOCAL( FT_Error )
-  af_cjk_hints_init( AF_GlyphHints    hints,
-                     AF_LatinMetrics  metrics );
+  af_cjk_hints_init( AF_GlyphHints  hints,
+                     AF_CJKMetrics  metrics );
 
   FT_LOCAL( FT_Error )
-  af_cjk_hints_apply( AF_GlyphHints    hints,
-                      FT_Outline*      outline,
-                      AF_LatinMetrics  metrics );
+  af_cjk_hints_apply( AF_GlyphHints  hints,
+                      FT_Outline*    outline,
+                      AF_CJKMetrics  metrics );
+
+  /* Shared. called from afindic.c */
+  FT_LOCAL( void )
+  af_cjk_metrics_check_digits( AF_CJKMetrics  metrics,
+                               FT_Face        face );
+
+  FT_LOCAL( void )
+  af_cjk_metrics_init_widths( AF_CJKMetrics  metrics,
+                              FT_Face        face,
+                              FT_ULong       charcode );
+
 
 /* */