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  1. /***************************************************************************/
  2. /*                                                                         */
  3. /*  cf2glue.h                                                              */
  4. /*                                                                         */
  5. /*    Adobe's code for shared stuff (specification only).                  */
  6. /*                                                                         */
  7. /*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
  8. /*                                                                         */
  9. /*  This software, and all works of authorship, whether in source or       */
  10. /*  object code form as indicated by the copyright notice(s) included      */
  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 */
  14. /*  FreeType Project License, each contributor to the Work hereby grants   */
  15. /*  to any individual or legal entity exercising permissions granted by    */
  16. /*  the FreeType Project License and this section (hereafter, "You" or     */
  17. /*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
  18. /*  royalty-free, irrevocable (except as stated in this section) patent    */
  19. /*  license to make, have made, use, offer to sell, sell, import, and      */
  20. /*  otherwise transfer the Work, where such license applies only to those  */
  21. /*  patent claims licensable by such contributor that are necessarily      */
  22. /*  infringed by their contribution(s) alone or by combination of their    */
  23. /*  contribution(s) with the Work to which such contribution(s) was        */
  24. /*  submitted.  If You institute patent litigation against any entity      */
  25. /*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
  26. /*  the Work or a contribution incorporated within the Work constitutes    */
  27. /*  direct or contributory patent infringement, then any patent licenses   */
  28. /*  granted to You under this License for that Work shall terminate as of  */
  29. /*  the date such litigation is filed.                                     */
  30. /*                                                                         */
  31. /*  By using, modifying, or distributing the Work you indicate that you    */
  32. /*  have read and understood the terms and conditions of the               */
  33. /*  FreeType Project License as well as those provided in this section,    */
  34. /*  and you accept them fully.                                             */
  35. /*                                                                         */
  36. /***************************************************************************/
  37.  
  38.  
  39. #ifndef __CF2GLUE_H__
  40. #define __CF2GLUE_H__
  41.  
  42.  
  43. /* common includes for other modules */
  44. #include "cf2error.h"
  45. #include "cf2fixed.h"
  46. #include "cf2arrst.h"
  47. #include "cf2read.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 /* __CF2GLUE_H__ */
  142.  
  143.  
  144. /* END */
  145.