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      1 /****************************************************************************
      2  *
      3  * psglue.h
      4  *
      5  *   Adobe's code for shared stuff (specification only).
      6  *
      7  * Copyright 2007-2013 Adobe Systems Incorporated.
      8  *
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     11  * herein (collectively, the "Work") is made available, and may only be
     12  * used, modified, and distributed under the FreeType Project License,
     13  * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
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     15  * to any individual or legal entity exercising permissions granted by
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     37 
     38 
     39 #ifndef PSGLUE_H_
     40 #define PSGLUE_H_
     41 
     42 
     43 /* common includes for other modules */
     44 #include "pserror.h"
     45 #include "psfixed.h"
     46 #include "psarrst.h"
     47 #include "psread.h"
     48 
     49 
     50 FT_BEGIN_HEADER
     51 
     52 
     53   /* rendering parameters */
     54 
     55   /* apply hints to rendered glyphs */
     56 #define CF2_FlagsHinted    1
     57   /* for testing */
     58 #define CF2_FlagsDarkened  2
     59 
     60   /* type for holding the flags */
     61   typedef CF2_Int  CF2_RenderingFlags;
     62 
     63 
     64   /* elements of a glyph outline */
     65   typedef enum  CF2_PathOp_
     66   {
     67     CF2_PathOpMoveTo = 1,     /* change the current point */
     68     CF2_PathOpLineTo = 2,     /* line                     */
     69     CF2_PathOpQuadTo = 3,     /* quadratic curve          */
     70     CF2_PathOpCubeTo = 4      /* cubic curve              */
     71 
     72   } CF2_PathOp;
     73 
     74 
     75   /* a matrix of fixed point values */
     76   typedef struct  CF2_Matrix_
     77   {
     78     CF2_F16Dot16  a;
     79     CF2_F16Dot16  b;
     80     CF2_F16Dot16  c;
     81     CF2_F16Dot16  d;
     82     CF2_F16Dot16  tx;
     83     CF2_F16Dot16  ty;
     84 
     85   } CF2_Matrix;
     86 
     87 
     88   /* these typedefs are needed by more than one header file */
     89   /* and gcc compiler doesn't allow redefinition            */
     90   typedef struct CF2_FontRec_  CF2_FontRec, *CF2_Font;
     91   typedef struct CF2_HintRec_  CF2_HintRec, *CF2_Hint;
     92 
     93 
     94   /* A common structure for all callback parameters.                       */
     95   /*                                                                       */
     96   /* Some members may be unused.  For example, `pt0' is not used for       */
     97   /* `moveTo' and `pt3' is not used for `quadTo'.  The initial point `pt0' */
     98   /* is included for each path element for generality; curve conversions   */
     99   /* need it.  The `op' parameter allows one function to handle multiple   */
    100   /* element types.                                                        */
    101 
    102   typedef struct  CF2_CallbackParamsRec_
    103   {
    104     FT_Vector  pt0;
    105     FT_Vector  pt1;
    106     FT_Vector  pt2;
    107     FT_Vector  pt3;
    108 
    109     CF2_Int  op;
    110 
    111   } CF2_CallbackParamsRec, *CF2_CallbackParams;
    112 
    113 
    114   /* forward reference */
    115   typedef struct CF2_OutlineCallbacksRec_  CF2_OutlineCallbacksRec,
    116                                            *CF2_OutlineCallbacks;
    117 
    118   /* callback function pointers */
    119   typedef void
    120   (*CF2_Callback_Type)( CF2_OutlineCallbacks      callbacks,
    121                         const CF2_CallbackParams  params );
    122 
    123 
    124   struct  CF2_OutlineCallbacksRec_
    125   {
    126     CF2_Callback_Type  moveTo;
    127     CF2_Callback_Type  lineTo;
    128     CF2_Callback_Type  quadTo;
    129     CF2_Callback_Type  cubeTo;
    130 
    131     CF2_Int  windingMomentum;    /* for winding order detection */
    132 
    133     FT_Memory  memory;
    134     FT_Error*  error;
    135   };
    136 
    137 
    138 FT_END_HEADER
    139 
    140 
    141 #endif /* PSGLUE_H_ */
    142 
    143 
    144 /* END */
    145