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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 350 insertions, 0 deletions

diff --git a/src/3rdparty/freetype/src/autofit/aftypes.h b/src/3rdparty/freetype/src/autofit/aftypes.h
new file mode 100644
index 0000000000..626a38865e
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/aftypes.h
@@ -0,0 +1,350 @@
+/***************************************************************************/
+/*                                                                         */
+/*  aftypes.h                                                              */
+/*                                                                         */
+/*    Auto-fitter types (specification only).                              */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 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 auto-fitter is a complete rewrite of the old auto-hinter.
+   *  Its main feature is the ability to differentiate between different
+   *  scripts in order to apply language-specific rules.
+   *
+   *  The code has also been compartmentized into several entities that
+   *  should make algorithmic experimentation easier than with the old
+   *  code.
+   *
+   *  Finally, we get rid of the Catharon license, since this code is
+   *  released under the FreeType one.
+   *
+   *************************************************************************/
+
+
+#ifndef __AFTYPES_H__
+#define __AFTYPES_H__
+
+#include <ft2build.h>
+
+#include FT_FREETYPE_H
+#include FT_OUTLINE_H
+#include FT_INTERNAL_OBJECTS_H
+#include FT_INTERNAL_DEBUG_H
+
+
+FT_BEGIN_HEADER
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                    D E B U G G I N G                          *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+#define xxAF_USE_WARPER  /* only define to use warp hinting */
+#define xxAF_DEBUG
+
+#ifdef AF_DEBUG
+
+#include FT_CONFIG_STANDARD_LIBRARY_H
+
+#define AF_LOG( x )  do { if ( _af_debug ) printf x; } while ( 0 )
+
+extern int    _af_debug;
+extern int    _af_debug_disable_horz_hints;
+extern int    _af_debug_disable_vert_hints;
+extern int    _af_debug_disable_blue_hints;
+extern void*  _af_debug_hints;
+
+#else /* !AF_DEBUG */
+
+#define AF_LOG( x )  do { } while ( 0 )        /* nothing */
+
+#endif /* !AF_DEBUG */
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                 U T I L I T Y   S T U F F                     *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  typedef struct  AF_WidthRec_
+  {
+    FT_Pos  org;  /* original position/width in font units              */
+    FT_Pos  cur;  /* current/scaled position/width in device sub-pixels */
+    FT_Pos  fit;  /* current/fitted position/width in device sub-pixels */
+
+  } AF_WidthRec, *AF_Width;
+
+
+  FT_LOCAL( void )
+  af_sort_pos( FT_UInt  count,
+               FT_Pos*  table );
+
+  FT_LOCAL( void )
+  af_sort_widths( FT_UInt   count,
+                  AF_Width  widths );
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                   A N G L E   T Y P E S                       *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /*
+   *  The auto-fitter doesn't need a very high angular accuracy;
+   *  this allows us to speed up some computations considerably with a
+   *  light Cordic algorithm (see afangles.c).
+   */
+
+  typedef FT_Int  AF_Angle;
+
+
+#define AF_ANGLE_PI   256
+#define AF_ANGLE_2PI  ( AF_ANGLE_PI * 2 )
+#define AF_ANGLE_PI2  ( AF_ANGLE_PI / 2 )
+#define AF_ANGLE_PI4  ( AF_ANGLE_PI / 4 )
+
+
+#if 0
+  /*
+   *  compute the angle of a given 2-D vector
+   */
+  FT_LOCAL( AF_Angle )
+  af_angle_atan( FT_Pos  dx,
+                 FT_Pos  dy );
+
+
+  /*
+   *  compute `angle2 - angle1'; the result is always within
+   *  the range [-AF_ANGLE_PI .. AF_ANGLE_PI - 1]
+   */
+  FT_LOCAL( AF_Angle )
+  af_angle_diff( AF_Angle  angle1,
+                 AF_Angle  angle2 );
+#endif /* 0 */
+
+
+#define AF_ANGLE_DIFF( result, angle1, angle2 ) \
+  FT_BEGIN_STMNT                                \
+    AF_Angle  _delta = (angle2) - (angle1);     \
+                                                \
+                                                \
+    _delta %= AF_ANGLE_2PI;                     \
+    if ( _delta < 0 )                           \
+      _delta += AF_ANGLE_2PI;                   \
+                                                \
+    if ( _delta > AF_ANGLE_PI )                 \
+      _delta -= AF_ANGLE_2PI;                   \
+                                                \
+    result = _delta;                            \
+  FT_END_STMNT
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                    O U T L I N E S                            *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /*  opaque handle to glyph-specific hints -- see `afhints.h' for more
+   *  details
+   */
+  typedef struct AF_GlyphHintsRec_*  AF_GlyphHints;
+
+  /*  This structure is used to model an input glyph outline to
+   *  the auto-hinter.  The latter will set the `hints' field
+   *  depending on the glyph's script.
+   */
+  typedef struct  AF_OutlineRec_
+  {
+    FT_Face        face;
+    FT_Outline     outline;
+    FT_UInt        outline_resolution;
+
+    FT_Int         advance;
+    FT_UInt        metrics_resolution;
+
+    AF_GlyphHints  hints;
+
+  } AF_OutlineRec;
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                       S C A L E R S                           *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /*
+   *  A scaler models the target pixel device that will receive the
+   *  auto-hinted glyph image.
+   */
+
+  typedef enum  AF_ScalerFlags_
+  {
+    AF_SCALER_FLAG_NO_HORIZONTAL = 1,  /* disable horizontal hinting */
+    AF_SCALER_FLAG_NO_VERTICAL   = 2,  /* disable vertical hinting   */
+    AF_SCALER_FLAG_NO_ADVANCE    = 4   /* disable advance hinting    */
+
+  } AF_ScalerFlags;
+
+
+  typedef struct  AF_ScalerRec_
+  {
+    FT_Face         face;        /* source font face                        */
+    FT_Fixed        x_scale;     /* from font units to 1/64th device pixels */
+    FT_Fixed        y_scale;     /* from font units to 1/64th device pixels */
+    FT_Pos          x_delta;     /* in 1/64th device pixels                 */
+    FT_Pos          y_delta;     /* in 1/64th device pixels                 */
+    FT_Render_Mode  render_mode; /* monochrome, anti-aliased, LCD, etc.     */
+    FT_UInt32       flags;       /* additional control flags, see above     */
+
+  } AF_ScalerRec, *AF_Scaler;
+
+
+#define AF_SCALER_EQUAL_SCALES( a, b )      \
+          ( (a)->x_scale == (b)->x_scale && \
+            (a)->y_scale == (b)->y_scale && \
+            (a)->x_delta == (b)->x_delta && \
+            (a)->y_delta == (b)->y_delta )
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                       S C R I P T S                           *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /*
+   *  The list of know scripts.  Each different script corresponds to the
+   *  following information:
+   *
+   *   - A set of Unicode ranges to test whether the face supports the
+   *     script.
+   *
+   *   - A specific global analyzer that will compute global metrics
+   *     specific to the script.
+   *
+   *   - A specific glyph analyzer that will compute segments and
+   *     edges for each glyph covered by the script.
+   *
+   *   - A specific grid-fitting algorithm that will distort the
+   *     scaled glyph outline according to the results of the glyph
+   *     analyzer.
+   *
+   *  Note that a given analyzer and/or grid-fitting algorithm can be
+   *  used by more than one script.
+   */
+
+  typedef enum  AF_Script_
+  {
+    AF_SCRIPT_NONE  = 0,
+    AF_SCRIPT_LATIN = 1,
+    AF_SCRIPT_CJK   = 2,
+    AF_SCRIPT_INDIC = 3, 
+#ifdef FT_OPTION_AUTOFIT2
+    AF_SCRIPT_LATIN2,
+#endif
+
+    /* add new scripts here.  Don't forget to update the list in */
+    /* `afglobal.c'.                                             */
+
+    AF_SCRIPT_MAX   /* do not remove */
+
+  } AF_Script;
+
+
+  typedef struct AF_ScriptClassRec_ const*  AF_ScriptClass;
+
+  typedef struct  AF_ScriptMetricsRec_
+  {
+    AF_ScriptClass  clazz;
+    AF_ScalerRec    scaler;
+
+  } AF_ScriptMetricsRec, *AF_ScriptMetrics;
+
+
+  /*  This function parses an FT_Face to compute global metrics for
+   *  a specific script.
+   */
+  typedef FT_Error
+  (*AF_Script_InitMetricsFunc)( AF_ScriptMetrics  metrics,
+                                FT_Face           face );
+
+  typedef void
+  (*AF_Script_ScaleMetricsFunc)( AF_ScriptMetrics  metrics,
+                                 AF_Scaler         scaler );
+
+  typedef void
+  (*AF_Script_DoneMetricsFunc)( AF_ScriptMetrics  metrics );
+
+
+  typedef FT_Error
+  (*AF_Script_InitHintsFunc)( AF_GlyphHints     hints,
+                              AF_ScriptMetrics  metrics );
+
+  typedef void
+  (*AF_Script_ApplyHintsFunc)( AF_GlyphHints     hints,
+                               FT_Outline*       outline,
+                               AF_ScriptMetrics  metrics );
+
+
+  typedef struct  AF_Script_UniRangeRec_
+  {
+    FT_UInt32  first;
+    FT_UInt32  last;
+
+  } AF_Script_UniRangeRec;
+
+  typedef const AF_Script_UniRangeRec  *AF_Script_UniRange;
+
+
+  typedef struct  AF_ScriptClassRec_
+  {
+    AF_Script                   script;
+    AF_Script_UniRange          script_uni_ranges; /* last must be { 0, 0 } */
+
+    FT_UInt                     script_metrics_size;
+    AF_Script_InitMetricsFunc   script_metrics_init;
+    AF_Script_ScaleMetricsFunc  script_metrics_scale;
+    AF_Script_DoneMetricsFunc   script_metrics_done;
+
+    AF_Script_InitHintsFunc     script_hints_init;
+    AF_Script_ApplyHintsFunc    script_hints_apply;
+
+  } AF_ScriptClassRec;
+
+
+/* */
+
+FT_END_HEADER
+
+#endif /* __AFTYPES_H__ */
+
+
+/* END */