20060303a

1 files changed, 110 insertions, 0 deletions

diff --git a/libfreetype/pshalgo1.h b/libfreetype/pshalgo1.h
new file mode 100644
index 00000000..2f795a6a
--- /dev/null
+++ b/libfreetype/pshalgo1.h
@@ -0,0 +1,110 @@
+/***************************************************************************/
+/*                                                                         */
+/*  pshalgo1.h                                                             */
+/*                                                                         */
+/*    PostScript hinting algorithm 1 (specification).                      */
+/*                                                                         */
+/*  Copyright 2001 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.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#ifndef __PSHALGO1_H__
+#define __PSHALGO1_H__
+
+#include "pshrec.h"
+
+FT_BEGIN_HEADER
+
+  typedef struct PSH1_HintRec_*  PSH1_Hint;
+
+  typedef enum
+  {
+    PSH1_HINT_FLAG_GHOST  = PS_HINT_FLAG_GHOST,
+    PSH1_HINT_FLAG_BOTTOM = PS_HINT_FLAG_BOTTOM,
+    PSH1_HINT_FLAG_ACTIVE = 4
+
+  } PSH1_Hint_Flags;
+
+#define psh1_hint_is_active( x )                          \
+          ( ( (x)->flags & PSH1_HINT_FLAG_ACTIVE ) != 0 )
+#define psh1_hint_is_ghost( x )                          \
+          ( ( (x)->flags & PSH1_HINT_FLAG_GHOST ) != 0 )
+
+#define psh1_hint_activate( x )    (x)->flags |= PSH1_HINT_FLAG_ACTIVE
+#define psh1_hint_deactivate( x )  (x)->flags &= ~PSH1_HINT_FLAG_ACTIVE
+
+  typedef struct  PSH1_HintRec_
+  {
+    FT_Int     org_pos;
+    FT_Int     org_len;
+    FT_Pos     cur_pos;
+    FT_Pos     cur_len;
+
+    FT_UInt    flags;
+
+    PSH1_Hint  parent;
+    FT_Int     order;
+
+  } PSH1_HintRec;
+
+
+  /* this is an interpolation zone used for strong points;  */
+  /* weak points are interpolated according to their strong */
+  /* neighbours                                             */
+  typedef struct  PSH1_ZoneRec_
+  {
+    FT_Fixed  scale;
+    FT_Fixed  delta;
+    FT_Pos    min;
+    FT_Pos    max;
+
+  } PSH1_ZoneRec, *PSH1_Zone;
+
+
+  typedef struct  PSH1_Hint_TableRec_
+  {
+    FT_UInt        max_hints;
+    FT_UInt        num_hints;
+    PSH1_Hint      hints;
+    PSH1_Hint*     sort;
+    PSH1_Hint*     sort_global;
+    FT_UInt        num_zones;
+    PSH1_Zone      zones;
+    PSH1_Zone      zone;
+    PS_Mask_Table  hint_masks;
+    PS_Mask_Table  counter_masks;
+
+  } PSH1_Hint_TableRec, *PSH1_Hint_Table;
+
+
+  extern FT_Error
+  ps1_hints_apply( PS_Hints        ps_hints,
+                   FT_Outline*     outline,
+                   PSH_Globals     globals,
+                   FT_Render_Mode  hint_mode );
+
+
+#ifdef DEBUG_HINTER
+  extern  PSH1_Hint_Table  ps1_debug_hint_table;
+
+  typedef void
+  (*PSH1_HintFunc)( PSH1_Hint  hint,
+                    FT_Bool    vertical );
+
+  extern PSH1_HintFunc  ps1_debug_hint_func;
+#endif
+
+FT_END_HEADER
+
+#endif /* __PSHALGO1_H__ */
+
+
+/* END */