reactos/sdk/lib/3rdparty/freetype/src/cff/cf2stack.h

   1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  cf2stack.h                                                             */
   4 /*                                                                         */
   5 /*    Adobe's code for emulating a CFF stack (specification).              */
   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 CF2STACK_H_
  40 #define CF2STACK_H_
  41
  42
  43 FT_BEGIN_HEADER
  44
  45
  46   /* CFF operand stack; specified maximum of 48 or 192 values */
  47   typedef struct  CF2_StackNumber_
  48   {
  49     union
  50     {
  51       CF2_Fixed  r;      /* 16.16 fixed point */
  52       CF2_Frac   f;      /* 2.30 fixed point (for font matrix) */
  53       CF2_Int    i;
  54     } u;
  55
  56     CF2_NumberType  type;
  57
  58   } CF2_StackNumber;
  59
  60
  61   typedef struct  CF2_StackRec_
  62   {
  63     FT_Memory         memory;
  64     FT_Error*         error;
  65     CF2_StackNumber*  buffer;
  66     CF2_StackNumber*  top;
  67     FT_UInt           stackSize;
  68
  69   } CF2_StackRec, *CF2_Stack;
  70
  71
  72   FT_LOCAL( CF2_Stack )
  73   cf2_stack_init( FT_Memory  memory,
  74                   FT_Error*  error,
  75                   FT_UInt    stackSize );
  76   FT_LOCAL( void )
  77   cf2_stack_free( CF2_Stack  stack );
  78
  79   FT_LOCAL( CF2_UInt )
  80   cf2_stack_count( CF2_Stack  stack );
  81
  82   FT_LOCAL( void )
  83   cf2_stack_pushInt( CF2_Stack  stack,
  84                      CF2_Int    val );
  85   FT_LOCAL( void )
  86   cf2_stack_pushFixed( CF2_Stack  stack,
  87                        CF2_Fixed  val );
  88
  89   FT_LOCAL( CF2_Int )
  90   cf2_stack_popInt( CF2_Stack  stack );
  91   FT_LOCAL( CF2_Fixed )
  92   cf2_stack_popFixed( CF2_Stack  stack );
  93
  94   FT_LOCAL( CF2_Fixed )
  95   cf2_stack_getReal( CF2_Stack  stack,
  96                      CF2_UInt   idx );
  97   FT_LOCAL( void )
  98   cf2_stack_setReal( CF2_Stack  stack,
  99                      CF2_UInt   idx,
 100                      CF2_Fixed  val );
 101
 102   FT_LOCAL( void )
 103   cf2_stack_pop( CF2_Stack  stack,
 104                  CF2_UInt   num );
 105
 106   FT_LOCAL( void )
 107   cf2_stack_roll( CF2_Stack  stack,
 108                   CF2_Int    count,
 109                   CF2_Int    idx );
 110
 111   FT_LOCAL( void )
 112   cf2_stack_clear( CF2_Stack  stack );
 113
 114
 115 FT_END_HEADER
 116
 117
 118 #endif /* CF2STACK_H_ */
 119
 120
 121 /* END */