XFA: merge patch from CL 815103002

Update freetype to 2.5.4.

Put freetype into third_party directory, cleaning up header files.

Previously freetype header files are in core/src/fxge/freetype and core/include/thirdparties. There were also multiple fx_freetype.h.

This patch removes the additional Foxit wrapper to make further update easier.

Notice, for original freetype source code, the following files are modified and need to be updated accordingly in future update:

third_party/freetype/include/config/ftmodule.h
third_party/freetype/include/config/ftoption.h

BUG=407341
R=thestig@chromium.org

Review URL: https://codereview.chromium.org/815103002

1 files changed, 396 insertions, 0 deletions

diff --git a/third_party/freetype/src/truetype/ttinterp.h b/third_party/freetype/src/truetype/ttinterp.h
new file mode 100644
index 0000000000..333decc6a6
--- /dev/null
+++ b/third_party/freetype/src/truetype/ttinterp.h
@@ -0,0 +1,396 @@
+/***************************************************************************/
+/*                                                                         */
+/*  ttinterp.h                                                             */
+/*                                                                         */
+/*    TrueType bytecode interpreter (specification).                       */
+/*                                                                         */
+/*  Copyright 1996-2007, 2010, 2012-2014 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 __TTINTERP_H__
+#define __TTINTERP_H__
+
+#include <ft2build.h>
+#include "ttobjs.h"
+
+
+FT_BEGIN_HEADER
+
+
+#ifndef TT_CONFIG_OPTION_STATIC_INTERPRETER /* indirect implementation */
+
+#define EXEC_OP_   TT_ExecContext  exc,
+#define EXEC_OP    TT_ExecContext  exc
+#define EXEC_ARG_  exc,
+#define EXEC_ARG   exc
+
+#else                                       /* static implementation */
+
+#define EXEC_OP_   /* void */
+#define EXEC_OP    /* void */
+#define EXEC_ARG_  /* void */
+#define EXEC_ARG   /* void */
+
+#endif /* TT_CONFIG_OPTION_STATIC_INTERPRETER */
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* Rounding mode constants.                                              */
+  /*                                                                       */
+#define TT_Round_Off             5
+#define TT_Round_To_Half_Grid    0
+#define TT_Round_To_Grid         1
+#define TT_Round_To_Double_Grid  2
+#define TT_Round_Up_To_Grid      4
+#define TT_Round_Down_To_Grid    3
+#define TT_Round_Super           6
+#define TT_Round_Super_45        7
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* Function types used by the interpreter, depending on various modes    */
+  /* (e.g. the rounding mode, whether to render a vertical or horizontal   */
+  /* line etc).                                                            */
+  /*                                                                       */
+  /*************************************************************************/
+
+  /* Rounding function */
+  typedef FT_F26Dot6
+  (*TT_Round_Func)( EXEC_OP_ FT_F26Dot6  distance,
+                             FT_F26Dot6  compensation );
+
+  /* Point displacement along the freedom vector routine */
+  typedef void
+  (*TT_Move_Func)( EXEC_OP_ TT_GlyphZone  zone,
+                            FT_UShort     point,
+                            FT_F26Dot6    distance );
+
+  /* Distance projection along one of the projection vectors */
+  typedef FT_F26Dot6
+  (*TT_Project_Func)( EXEC_OP_ FT_Pos   dx,
+                               FT_Pos   dy );
+
+  /* getting current ppem.  Take care of non-square pixels if necessary */
+  typedef FT_Long
+  (*TT_Cur_Ppem_Func)( EXEC_OP );
+
+  /* reading a cvt value.  Take care of non-square pixels if necessary */
+  typedef FT_F26Dot6
+  (*TT_Get_CVT_Func)( EXEC_OP_ FT_ULong  idx );
+
+  /* setting or moving a cvt value.  Take care of non-square pixels  */
+  /* if necessary                                                    */
+  typedef void
+  (*TT_Set_CVT_Func)( EXEC_OP_ FT_ULong    idx,
+                               FT_F26Dot6  value );
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* This structure defines a call record, used to manage function calls.  */
+  /*                                                                       */
+  typedef struct  TT_CallRec_
+  {
+    FT_Int   Caller_Range;
+    FT_Long  Caller_IP;
+    FT_Long  Cur_Count;
+
+    TT_DefRecord  *Def; /* either FDEF or IDEF */
+
+  } TT_CallRec, *TT_CallStack;
+
+
+#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* These structures define rules used to tweak subpixel hinting for      */
+  /* various fonts.  "", 0, "", NULL value indicates to match any value.   */
+  /*                                                                       */
+
+#define SPH_MAX_NAME_SIZE      32
+#define SPH_MAX_CLASS_MEMBERS  100
+
+  typedef struct  SPH_TweakRule_
+  {
+    const char      family[SPH_MAX_NAME_SIZE];
+    const FT_UInt   ppem;
+    const char      style[SPH_MAX_NAME_SIZE];
+    const FT_ULong  glyph;
+
+  } SPH_TweakRule;
+
+
+  typedef struct  SPH_ScaleRule_
+  {
+    const char      family[SPH_MAX_NAME_SIZE];
+    const FT_UInt   ppem;
+    const char      style[SPH_MAX_NAME_SIZE];
+    const FT_ULong  glyph;
+    const FT_ULong  scale;
+
+  } SPH_ScaleRule;
+
+
+  typedef struct  SPH_Font_Class_
+  {
+    const char  name[SPH_MAX_NAME_SIZE];
+    const char  member[SPH_MAX_CLASS_MEMBERS][SPH_MAX_NAME_SIZE];
+
+  } SPH_Font_Class;
+
+#endif /* TT_CONFIG_OPTION_SUBPIXEL_HINTING */
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* The main structure for the interpreter which collects all necessary   */
+  /* variables and states.                                                 */
+  /*                                                                       */
+  typedef struct  TT_ExecContextRec_
+  {
+    TT_Face            face;
+    TT_Size            size;
+    FT_Memory          memory;
+
+    /* instructions state */
+
+    FT_Error           error;      /* last execution error */
+
+    FT_Long            top;        /* top of exec. stack   */
+
+    FT_UInt            stackSize;  /* size of exec. stack  */
+    FT_Long*           stack;      /* current exec. stack  */
+
+    FT_Long            args;
+    FT_UInt            new_top;    /* new top after exec.  */
+
+    TT_GlyphZoneRec    zp0,        /* zone records */
+                       zp1,
+                       zp2,
+                       pts,
+                       twilight;
+
+    FT_Size_Metrics    metrics;
+    TT_Size_Metrics    tt_metrics; /* size metrics */
+
+    TT_GraphicsState   GS;         /* current graphics state */
+
+    FT_Int             curRange;  /* current code range number   */
+    FT_Byte*           code;      /* current code range          */
+    FT_Long            IP;        /* current instruction pointer */
+    FT_Long            codeSize;  /* size of current range       */
+
+    FT_Byte            opcode;    /* current opcode              */
+    FT_Int             length;    /* length of current opcode    */
+
+    FT_Bool            step_ins;  /* true if the interpreter must */
+                                  /* increment IP after ins. exec */
+    FT_ULong           cvtSize;
+    FT_Long*           cvt;
+
+    FT_UInt            glyphSize; /* glyph instructions buffer size */
+    FT_Byte*           glyphIns;  /* glyph instructions buffer */
+
+    FT_UInt            numFDefs;  /* number of function defs         */
+    FT_UInt            maxFDefs;  /* maximum number of function defs */
+    TT_DefArray        FDefs;     /* table of FDefs entries          */
+
+    FT_UInt            numIDefs;  /* number of instruction defs */
+    FT_UInt            maxIDefs;  /* maximum number of ins defs */
+    TT_DefArray        IDefs;     /* table of IDefs entries     */
+
+    FT_UInt            maxFunc;   /* maximum function index     */
+    FT_UInt            maxIns;    /* maximum instruction index  */
+
+    FT_Int             callTop,    /* top of call stack during execution */
+                       callSize;   /* size of call stack */
+    TT_CallStack       callStack;  /* call stack */
+
+    FT_UShort          maxPoints;    /* capacity of this context's `pts' */
+    FT_Short           maxContours;  /* record, expressed in points and  */
+                                     /* contours.                        */
+
+    TT_CodeRangeTable  codeRangeTable;  /* table of valid code ranges */
+                                        /* useful for the debugger   */
+
+    FT_UShort          storeSize;  /* size of current storage */
+    FT_Long*           storage;    /* storage area            */
+
+    FT_F26Dot6         period;     /* values used for the */
+    FT_F26Dot6         phase;      /* `SuperRounding'     */
+    FT_F26Dot6         threshold;
+
+    FT_Bool            instruction_trap; /* If `True', the interpreter will */
+                                         /* exit after each instruction     */
+
+    TT_GraphicsState   default_GS;       /* graphics state resulting from   */
+                                         /* the prep program                */
+    FT_Bool            is_composite;     /* true if the glyph is composite  */
+    FT_Bool            pedantic_hinting; /* true if pedantic interpretation */
+
+    /* latest interpreter additions */
+
+    FT_Long            F_dot_P;    /* dot product of freedom and projection */
+                                   /* vectors                               */
+    TT_Round_Func      func_round; /* current rounding function             */
+
+    TT_Project_Func    func_project,   /* current projection function */
+                       func_dualproj,  /* current dual proj. function */
+                       func_freeProj;  /* current freedom proj. func  */
+
+    TT_Move_Func       func_move;      /* current point move function */
+    TT_Move_Func       func_move_orig; /* move original position function */
+
+    TT_Cur_Ppem_Func   func_cur_ppem;  /* get current proj. ppem value  */
+
+    TT_Get_CVT_Func    func_read_cvt;  /* read a cvt entry              */
+    TT_Set_CVT_Func    func_write_cvt; /* write a cvt entry (in pixels) */
+    TT_Set_CVT_Func    func_move_cvt;  /* incr a cvt entry (in pixels)  */
+
+    FT_Bool            grayscale;      /* are we hinting for grayscale? */
+
+#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
+    TT_Round_Func      func_round_sphn;   /* subpixel rounding function */
+
+    FT_Bool            subpixel;          /* Using subpixel hinting?       */
+    FT_Bool            ignore_x_mode;     /* Standard rendering mode for   */
+                                          /* subpixel hinting.  On if gray */
+                                          /* or subpixel hinting is on.    */
+
+    /* The following 4 aren't fully implemented but here for MS rasterizer */
+    /* compatibility.                                                      */
+    FT_Bool            compatible_widths;     /* compatible widths?        */
+    FT_Bool            symmetrical_smoothing; /* symmetrical_smoothing?    */
+    FT_Bool            bgr;                   /* bgr instead of rgb?       */
+    FT_Bool            subpixel_positioned;   /* subpixel positioned       */
+                                              /* (DirectWrite ClearType)?  */
+
+    FT_Int             rasterizer_version;    /* MS rasterizer version     */
+
+    FT_Bool            iup_called;            /* IUP called for glyph?     */
+
+    FT_ULong           sph_tweak_flags;       /* flags to control          */
+                                              /* hint tweaks               */
+
+    FT_ULong           sph_in_func_flags;     /* flags to indicate if in   */
+                                              /* special functions         */
+
+#endif /* TT_CONFIG_OPTION_SUBPIXEL_HINTING */
+
+  } TT_ExecContextRec;
+
+
+  extern const TT_GraphicsState  tt_default_graphics_state;
+
+
+#ifdef TT_USE_BYTECODE_INTERPRETER
+  FT_LOCAL( void )
+  TT_Goto_CodeRange( TT_ExecContext  exec,
+                     FT_Int          range,
+                     FT_Long         IP );
+
+  FT_LOCAL( void )
+  TT_Set_CodeRange( TT_ExecContext  exec,
+                    FT_Int          range,
+                    void*           base,
+                    FT_Long         length );
+
+  FT_LOCAL( void )
+  TT_Clear_CodeRange( TT_ExecContext  exec,
+                      FT_Int          range );
+
+
+  FT_LOCAL( FT_Error )
+  Update_Max( FT_Memory  memory,
+              FT_ULong*  size,
+              FT_Long    multiplier,
+              void*      _pbuff,
+              FT_ULong   new_max );
+#endif /* TT_USE_BYTECODE_INTERPRETER */
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    TT_New_Context                                                     */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Queries the face context for a given font.  Note that there is     */
+  /*    now a _single_ execution context in the TrueType driver which is   */
+  /*    shared among faces.                                                */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    face :: A handle to the source face object.                        */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    A handle to the execution context.  Initialized for `face'.        */
+  /*                                                                       */
+  /* <Note>                                                                */
+  /*    Only the glyph loader and debugger should call this function.      */
+  /*                                                                       */
+  FT_EXPORT( TT_ExecContext )
+  TT_New_Context( TT_Driver  driver );
+
+
+#ifdef TT_USE_BYTECODE_INTERPRETER
+  FT_LOCAL( void )
+  TT_Done_Context( TT_ExecContext  exec );
+
+  FT_LOCAL( FT_Error )
+  TT_Load_Context( TT_ExecContext  exec,
+                   TT_Face         face,
+                   TT_Size         size );
+
+  FT_LOCAL( void )
+  TT_Save_Context( TT_ExecContext  exec,
+                   TT_Size         ins );
+
+  FT_LOCAL( FT_Error )
+  TT_Run_Context( TT_ExecContext  exec,
+                  FT_Bool         debug );
+#endif /* TT_USE_BYTECODE_INTERPRETER */
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    TT_RunIns                                                          */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Executes one or more instruction in the execution context.  This   */
+  /*    is the main function of the TrueType opcode interpreter.           */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    exec :: A handle to the target execution context.                  */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    FreeType error code.  0 means success.                             */
+  /*                                                                       */
+  /* <Note>                                                                */
+  /*    Only the object manager and debugger should call this function.    */
+  /*                                                                       */
+  /*    This function is publicly exported because it is directly          */
+  /*    invoked by the TrueType debugger.                                  */
+  /*                                                                       */
+  FT_EXPORT( FT_Error )
+  TT_RunIns( TT_ExecContext  exec );
+
+
+FT_END_HEADER
+
+#endif /* __TTINTERP_H__ */
+
+
+/* END */