misc/libfreetype/src/pshinter/pshrec.h
changeset 5172 88f2e05288ba
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libfreetype/src/pshinter/pshrec.h	Mon Apr 25 01:46:54 2011 +0200
@@ -0,0 +1,176 @@
+/***************************************************************************/
+/*                                                                         */
+/*  pshrec.h                                                               */
+/*                                                                         */
+/*    Postscript (Type1/Type2) hints recorder (specification).             */
+/*                                                                         */
+/*  Copyright 2001, 2002, 2003, 2006, 2008 by                              */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+  /**************************************************************************/
+  /*                                                                        */
+  /*  The functions defined here are called from the Type 1, CID and CFF    */
+  /*  font drivers to record the hints of a given character/glyph.          */
+  /*                                                                        */
+  /*  The hints are recorded in a unified format, and are later processed   */
+  /*  by the `optimizer' and `fitter' to adjust the outlines to the pixel   */
+  /*  grid.                                                                 */
+  /*                                                                        */
+  /**************************************************************************/
+
+
+#ifndef __PSHREC_H__
+#define __PSHREC_H__
+
+
+#include <ft2build.h>
+#include FT_INTERNAL_POSTSCRIPT_HINTS_H
+#include "pshglob.h"
+
+
+FT_BEGIN_HEADER
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                 GLYPH HINTS RECORDER INTERNALS                *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* handle to hint record */
+  typedef struct PS_HintRec_*  PS_Hint;
+
+  /* hint types */
+  typedef enum  PS_Hint_Type_
+  {
+    PS_HINT_TYPE_1 = 1,
+    PS_HINT_TYPE_2 = 2
+
+  } PS_Hint_Type;
+
+
+  /* hint flags */
+  typedef enum  PS_Hint_Flags_
+  {
+    PS_HINT_FLAG_GHOST  = 1,
+    PS_HINT_FLAG_BOTTOM = 2
+
+  } PS_Hint_Flags;
+
+
+  /* hint descriptor */
+  typedef struct  PS_HintRec_
+  {
+    FT_Int   pos;
+    FT_Int   len;
+    FT_UInt  flags;
+
+  } PS_HintRec;
+
+
+#define ps_hint_is_active( x )  ( (x)->flags & PS_HINT_FLAG_ACTIVE )
+#define ps_hint_is_ghost( x )   ( (x)->flags & PS_HINT_FLAG_GHOST  )
+#define ps_hint_is_bottom( x )  ( (x)->flags & PS_HINT_FLAG_BOTTOM )
+
+
+  /* hints table descriptor */
+  typedef struct  PS_Hint_TableRec_
+  {
+    FT_UInt  num_hints;
+    FT_UInt  max_hints;
+    PS_Hint  hints;
+
+  } PS_Hint_TableRec, *PS_Hint_Table;
+
+
+  /* hint and counter mask descriptor */
+  typedef struct  PS_MaskRec_
+  {
+    FT_UInt   num_bits;
+    FT_UInt   max_bits;
+    FT_Byte*  bytes;
+    FT_UInt   end_point;
+
+  } PS_MaskRec, *PS_Mask;
+
+
+  /* masks and counters table descriptor */
+  typedef struct  PS_Mask_TableRec_
+  {
+    FT_UInt  num_masks;
+    FT_UInt  max_masks;
+    PS_Mask  masks;
+
+  } PS_Mask_TableRec, *PS_Mask_Table;
+
+
+ /* dimension-specific hints descriptor */
+  typedef struct  PS_DimensionRec_
+  {
+    PS_Hint_TableRec  hints;
+    PS_Mask_TableRec  masks;
+    PS_Mask_TableRec  counters;
+
+  } PS_DimensionRec, *PS_Dimension;
+
+
+  /* glyph hints descriptor                                */
+  /* dimension 0 => X coordinates + vertical hints/stems   */
+  /* dimension 1 => Y coordinates + horizontal hints/stems */
+  typedef struct  PS_HintsRec_
+  {
+    FT_Memory        memory;
+    FT_Error         error;
+    FT_UInt32        magic;
+    PS_Hint_Type     hint_type;
+    PS_DimensionRec  dimension[2];
+
+  } PS_HintsRec, *PS_Hints;
+
+  /* */
+
+  /* initialize hints recorder */
+  FT_LOCAL( FT_Error )
+  ps_hints_init( PS_Hints   hints,
+                 FT_Memory  memory );
+
+  /* finalize hints recorder */
+  FT_LOCAL( void )
+  ps_hints_done( PS_Hints  hints );
+
+  /* initialize Type1 hints recorder interface */
+  FT_LOCAL( void )
+  t1_hints_funcs_init( T1_Hints_FuncsRec*  funcs );
+
+  /* initialize Type2 hints recorder interface */
+  FT_LOCAL( void )
+  t2_hints_funcs_init( T2_Hints_FuncsRec*  funcs );
+
+
+#ifdef DEBUG_HINTER
+  extern PS_Hints  ps_debug_hints;
+  extern  int      ps_debug_no_horz_hints;
+  extern  int      ps_debug_no_vert_hints;
+#endif
+
+ /* */
+
+
+FT_END_HEADER
+
+
+#endif /* __PS_HINTER_RECORD_H__ */
+
+
+/* END */