psglue.h

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/****************************************************************************
 *
 * psglue.h
 *
 *   Adobe's code for shared stuff (specification only).
 *
 * Copyright 2007-2013 Adobe Systems Incorporated.
 *
 * This software, and all works of authorship, whether in source or
 * object code form as indicated by the copyright notice(s) included
 * herein (collectively, the "Work") is made available, and may only be
 * used, modified, and distributed under the FreeType Project License,
 * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
 * FreeType Project License, each contributor to the Work hereby grants
 * to any individual or legal entity exercising permissions granted by
 * the FreeType Project License and this section (hereafter, "You" or
 * "Your") a perpetual, worldwide, non-exclusive, no-charge,
 * royalty-free, irrevocable (except as stated in this section) patent
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 * and you accept them fully.
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 */
 

#ifndef PSGLUE_H_
#define PSGLUE_H_
 
 
/* common includes for other modules */
#include "pserror.h"
#include "psfixed.h"
#include "psarrst.h"
#include "psread.h"
 
 
FT_BEGIN_HEADER
 
 
  /* rendering parameters */
 
  /* apply hints to rendered glyphs */
#define CF2_FlagsHinted    1
  /* for testing */
#define CF2_FlagsDarkened  2
 
  /* type for holding the flags */
  typedef CF2_Int  CF2_RenderingFlags;
 
 
  /* elements of a glyph outline */
  typedef enum  CF2_PathOp_
  {
    CF2_PathOpMoveTo = 1,     /* change the current point */
    CF2_PathOpLineTo = 2,     /* line                     */
    CF2_PathOpQuadTo = 3,     /* quadratic curve          */
    CF2_PathOpCubeTo = 4      /* cubic curve              */
 
  } CF2_PathOp;
 
 
  /* a matrix of fixed-point values */
  typedef struct  CF2_Matrix_
  {
    CF2_F16Dot16  a;
    CF2_F16Dot16  b;
    CF2_F16Dot16  c;
    CF2_F16Dot16  d;
    CF2_F16Dot16  tx;
    CF2_F16Dot16  ty;
 
  } CF2_Matrix;
 
 
  /* these typedefs are needed by more than one header file */
  /* and gcc compiler doesn't allow redefinition            */
  typedef struct CF2_FontRec_  CF2_FontRec, *CF2_Font;
  typedef struct CF2_HintRec_  CF2_HintRec, *CF2_Hint;
 
 
  /* A common structure for all callback parameters.                       */
  /*                                                                       */
  /* Some members may be unused.  For example, `pt0' is not used for       */
  /* `moveTo' and `pt3' is not used for `quadTo'.  The initial point `pt0' */
  /* is included for each path element for generality; curve conversions   */
  /* need it.  The `op' parameter allows one function to handle multiple   */
  /* element types.                                                        */
 
  typedef struct  CF2_CallbackParamsRec_
  {
    FT_Vector  pt0;
    FT_Vector  pt1;
    FT_Vector  pt2;
    FT_Vector  pt3;
 
    CF2_Int  op;
 
  } CF2_CallbackParamsRec, *CF2_CallbackParams;
 
 
  /* forward reference */
  typedef struct CF2_OutlineCallbacksRec_  CF2_OutlineCallbacksRec,
                                           *CF2_OutlineCallbacks;
 
  /* callback function pointers */
  typedef void
  (*CF2_Callback_Type)( CF2_OutlineCallbacks      callbacks,
                        const CF2_CallbackParams  params );
 
 
  struct  CF2_OutlineCallbacksRec_
  {
    CF2_Callback_Type  moveTo;
    CF2_Callback_Type  lineTo;
    CF2_Callback_Type  quadTo;
    CF2_Callback_Type  cubeTo;
 
    CF2_Int  windingMomentum;    /* for winding order detection */
 
    FT_Memory  memory;
    FT_Error*  error;
  };
 
 
FT_END_HEADER
 
 
#endif /* PSGLUE_H_ */
 
 
/* END */