vrshoot

diff libs/ft2static/freetype/fttypes.h @ 0:b2f14e535253

initial commit
author John Tsiombikas <nuclear@member.fsf.org>
date Sat, 01 Feb 2014 19:58:19 +0200
parents
children
line diff
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/libs/ft2static/freetype/fttypes.h	Sat Feb 01 19:58:19 2014 +0200
     1.3 @@ -0,0 +1,588 @@
     1.4 +/***************************************************************************/
     1.5 +/*                                                                         */
     1.6 +/*  fttypes.h                                                              */
     1.7 +/*                                                                         */
     1.8 +/*    FreeType simple types definitions (specification only).              */
     1.9 +/*                                                                         */
    1.10 +/*  Copyright 1996-2001, 2002, 2004, 2006, 2007, 2008 by                   */
    1.11 +/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
    1.12 +/*                                                                         */
    1.13 +/*  This file is part of the FreeType project, and may only be used,       */
    1.14 +/*  modified, and distributed under the terms of the FreeType project      */
    1.15 +/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
    1.16 +/*  this file you indicate that you have read the license and              */
    1.17 +/*  understand and accept it fully.                                        */
    1.18 +/*                                                                         */
    1.19 +/***************************************************************************/
    1.20 +
    1.21 +
    1.22 +#ifndef __FTTYPES_H__
    1.23 +#define __FTTYPES_H__
    1.24 +
    1.25 +
    1.26 +#include <ft2build.h>
    1.27 +#include FT_CONFIG_CONFIG_H
    1.28 +#include FT_SYSTEM_H
    1.29 +#include FT_IMAGE_H
    1.30 +
    1.31 +#include <stddef.h>
    1.32 +
    1.33 +
    1.34 +FT_BEGIN_HEADER
    1.35 +
    1.36 +
    1.37 +  /*************************************************************************/
    1.38 +  /*                                                                       */
    1.39 +  /* <Section>                                                             */
    1.40 +  /*    basic_types                                                        */
    1.41 +  /*                                                                       */
    1.42 +  /* <Title>                                                               */
    1.43 +  /*    Basic Data Types                                                   */
    1.44 +  /*                                                                       */
    1.45 +  /* <Abstract>                                                            */
    1.46 +  /*    The basic data types defined by the library.                       */
    1.47 +  /*                                                                       */
    1.48 +  /* <Description>                                                         */
    1.49 +  /*    This section contains the basic data types defined by FreeType~2,  */
    1.50 +  /*    ranging from simple scalar types to bitmap descriptors.  More      */
    1.51 +  /*    font-specific structures are defined in a different section.       */
    1.52 +  /*                                                                       */
    1.53 +  /* <Order>                                                               */
    1.54 +  /*    FT_Byte                                                            */
    1.55 +  /*    FT_Bytes                                                           */
    1.56 +  /*    FT_Char                                                            */
    1.57 +  /*    FT_Int                                                             */
    1.58 +  /*    FT_UInt                                                            */
    1.59 +  /*    FT_Int16                                                           */
    1.60 +  /*    FT_UInt16                                                          */
    1.61 +  /*    FT_Int32                                                           */
    1.62 +  /*    FT_UInt32                                                          */
    1.63 +  /*    FT_Short                                                           */
    1.64 +  /*    FT_UShort                                                          */
    1.65 +  /*    FT_Long                                                            */
    1.66 +  /*    FT_ULong                                                           */
    1.67 +  /*    FT_Bool                                                            */
    1.68 +  /*    FT_Offset                                                          */
    1.69 +  /*    FT_PtrDist                                                         */
    1.70 +  /*    FT_String                                                          */
    1.71 +  /*    FT_Tag                                                             */
    1.72 +  /*    FT_Error                                                           */
    1.73 +  /*    FT_Fixed                                                           */
    1.74 +  /*    FT_Pointer                                                         */
    1.75 +  /*    FT_Pos                                                             */
    1.76 +  /*    FT_Vector                                                          */
    1.77 +  /*    FT_BBox                                                            */
    1.78 +  /*    FT_Matrix                                                          */
    1.79 +  /*    FT_FWord                                                           */
    1.80 +  /*    FT_UFWord                                                          */
    1.81 +  /*    FT_F2Dot14                                                         */
    1.82 +  /*    FT_UnitVector                                                      */
    1.83 +  /*    FT_F26Dot6                                                         */
    1.84 +  /*                                                                       */
    1.85 +  /*                                                                       */
    1.86 +  /*    FT_Generic                                                         */
    1.87 +  /*    FT_Generic_Finalizer                                               */
    1.88 +  /*                                                                       */
    1.89 +  /*    FT_Bitmap                                                          */
    1.90 +  /*    FT_Pixel_Mode                                                      */
    1.91 +  /*    FT_Palette_Mode                                                    */
    1.92 +  /*    FT_Glyph_Format                                                    */
    1.93 +  /*    FT_IMAGE_TAG                                                       */
    1.94 +  /*                                                                       */
    1.95 +  /*************************************************************************/
    1.96 +
    1.97 +
    1.98 +  /*************************************************************************/
    1.99 +  /*                                                                       */
   1.100 +  /* <Type>                                                                */
   1.101 +  /*    FT_Bool                                                            */
   1.102 +  /*                                                                       */
   1.103 +  /* <Description>                                                         */
   1.104 +  /*    A typedef of unsigned char, used for simple booleans.  As usual,   */
   1.105 +  /*    values 1 and~0 represent true and false, respectively.             */
   1.106 +  /*                                                                       */
   1.107 +  typedef unsigned char  FT_Bool;
   1.108 +
   1.109 +
   1.110 +  /*************************************************************************/
   1.111 +  /*                                                                       */
   1.112 +  /* <Type>                                                                */
   1.113 +  /*    FT_FWord                                                           */
   1.114 +  /*                                                                       */
   1.115 +  /* <Description>                                                         */
   1.116 +  /*    A signed 16-bit integer used to store a distance in original font  */
   1.117 +  /*    units.                                                             */
   1.118 +  /*                                                                       */
   1.119 +  typedef signed short  FT_FWord;   /* distance in FUnits */
   1.120 +
   1.121 +
   1.122 +  /*************************************************************************/
   1.123 +  /*                                                                       */
   1.124 +  /* <Type>                                                                */
   1.125 +  /*    FT_UFWord                                                          */
   1.126 +  /*                                                                       */
   1.127 +  /* <Description>                                                         */
   1.128 +  /*    An unsigned 16-bit integer used to store a distance in original    */
   1.129 +  /*    font units.                                                        */
   1.130 +  /*                                                                       */
   1.131 +  typedef unsigned short  FT_UFWord;  /* unsigned distance */
   1.132 +
   1.133 +
   1.134 +  /*************************************************************************/
   1.135 +  /*                                                                       */
   1.136 +  /* <Type>                                                                */
   1.137 +  /*    FT_Char                                                            */
   1.138 +  /*                                                                       */
   1.139 +  /* <Description>                                                         */
   1.140 +  /*    A simple typedef for the _signed_ char type.                       */
   1.141 +  /*                                                                       */
   1.142 +  typedef signed char  FT_Char;
   1.143 +
   1.144 +
   1.145 +  /*************************************************************************/
   1.146 +  /*                                                                       */
   1.147 +  /* <Type>                                                                */
   1.148 +  /*    FT_Byte                                                            */
   1.149 +  /*                                                                       */
   1.150 +  /* <Description>                                                         */
   1.151 +  /*    A simple typedef for the _unsigned_ char type.                     */
   1.152 +  /*                                                                       */
   1.153 +  typedef unsigned char  FT_Byte;
   1.154 +
   1.155 +
   1.156 +  /*************************************************************************/
   1.157 +  /*                                                                       */
   1.158 +  /* <Type>                                                                */
   1.159 +  /*    FT_Bytes                                                           */
   1.160 +  /*                                                                       */
   1.161 +  /* <Description>                                                         */
   1.162 +  /*    A typedef for constant memory areas.                               */
   1.163 +  /*                                                                       */
   1.164 +  typedef const FT_Byte*  FT_Bytes;
   1.165 +
   1.166 +
   1.167 +  /*************************************************************************/
   1.168 +  /*                                                                       */
   1.169 +  /* <Type>                                                                */
   1.170 +  /*    FT_Tag                                                             */
   1.171 +  /*                                                                       */
   1.172 +  /* <Description>                                                         */
   1.173 +  /*    A typedef for 32-bit tags (as used in the SFNT format).            */
   1.174 +  /*                                                                       */
   1.175 +  typedef FT_UInt32  FT_Tag;
   1.176 +
   1.177 +
   1.178 +  /*************************************************************************/
   1.179 +  /*                                                                       */
   1.180 +  /* <Type>                                                                */
   1.181 +  /*    FT_String                                                          */
   1.182 +  /*                                                                       */
   1.183 +  /* <Description>                                                         */
   1.184 +  /*    A simple typedef for the char type, usually used for strings.      */
   1.185 +  /*                                                                       */
   1.186 +  typedef char  FT_String;
   1.187 +
   1.188 +
   1.189 +  /*************************************************************************/
   1.190 +  /*                                                                       */
   1.191 +  /* <Type>                                                                */
   1.192 +  /*    FT_Short                                                           */
   1.193 +  /*                                                                       */
   1.194 +  /* <Description>                                                         */
   1.195 +  /*    A typedef for signed short.                                        */
   1.196 +  /*                                                                       */
   1.197 +  typedef signed short  FT_Short;
   1.198 +
   1.199 +
   1.200 +  /*************************************************************************/
   1.201 +  /*                                                                       */
   1.202 +  /* <Type>                                                                */
   1.203 +  /*    FT_UShort                                                          */
   1.204 +  /*                                                                       */
   1.205 +  /* <Description>                                                         */
   1.206 +  /*    A typedef for unsigned short.                                      */
   1.207 +  /*                                                                       */
   1.208 +  typedef unsigned short  FT_UShort;
   1.209 +
   1.210 +
   1.211 +  /*************************************************************************/
   1.212 +  /*                                                                       */
   1.213 +  /* <Type>                                                                */
   1.214 +  /*    FT_Int                                                             */
   1.215 +  /*                                                                       */
   1.216 +  /* <Description>                                                         */
   1.217 +  /*    A typedef for the int type.                                        */
   1.218 +  /*                                                                       */
   1.219 +  typedef signed int  FT_Int;
   1.220 +
   1.221 +
   1.222 +  /*************************************************************************/
   1.223 +  /*                                                                       */
   1.224 +  /* <Type>                                                                */
   1.225 +  /*    FT_UInt                                                            */
   1.226 +  /*                                                                       */
   1.227 +  /* <Description>                                                         */
   1.228 +  /*    A typedef for the unsigned int type.                               */
   1.229 +  /*                                                                       */
   1.230 +  typedef unsigned int  FT_UInt;
   1.231 +
   1.232 +
   1.233 +  /*************************************************************************/
   1.234 +  /*                                                                       */
   1.235 +  /* <Type>                                                                */
   1.236 +  /*    FT_Long                                                            */
   1.237 +  /*                                                                       */
   1.238 +  /* <Description>                                                         */
   1.239 +  /*    A typedef for signed long.                                         */
   1.240 +  /*                                                                       */
   1.241 +  typedef signed long  FT_Long;
   1.242 +
   1.243 +
   1.244 +  /*************************************************************************/
   1.245 +  /*                                                                       */
   1.246 +  /* <Type>                                                                */
   1.247 +  /*    FT_ULong                                                           */
   1.248 +  /*                                                                       */
   1.249 +  /* <Description>                                                         */
   1.250 +  /*    A typedef for unsigned long.                                       */
   1.251 +  /*                                                                       */
   1.252 +  typedef unsigned long  FT_ULong;
   1.253 +
   1.254 +
   1.255 +  /*************************************************************************/
   1.256 +  /*                                                                       */
   1.257 +  /* <Type>                                                                */
   1.258 +  /*    FT_F2Dot14                                                         */
   1.259 +  /*                                                                       */
   1.260 +  /* <Description>                                                         */
   1.261 +  /*    A signed 2.14 fixed float type used for unit vectors.              */
   1.262 +  /*                                                                       */
   1.263 +  typedef signed short  FT_F2Dot14;
   1.264 +
   1.265 +
   1.266 +  /*************************************************************************/
   1.267 +  /*                                                                       */
   1.268 +  /* <Type>                                                                */
   1.269 +  /*    FT_F26Dot6                                                         */
   1.270 +  /*                                                                       */
   1.271 +  /* <Description>                                                         */
   1.272 +  /*    A signed 26.6 fixed float type used for vectorial pixel            */
   1.273 +  /*    coordinates.                                                       */
   1.274 +  /*                                                                       */
   1.275 +  typedef signed long  FT_F26Dot6;
   1.276 +
   1.277 +
   1.278 +  /*************************************************************************/
   1.279 +  /*                                                                       */
   1.280 +  /* <Type>                                                                */
   1.281 +  /*    FT_Fixed                                                           */
   1.282 +  /*                                                                       */
   1.283 +  /* <Description>                                                         */
   1.284 +  /*    This type is used to store 16.16 fixed float values, like scaling  */
   1.285 +  /*    values or matrix coefficients.                                     */
   1.286 +  /*                                                                       */
   1.287 +  typedef signed long  FT_Fixed;
   1.288 +
   1.289 +
   1.290 +  /*************************************************************************/
   1.291 +  /*                                                                       */
   1.292 +  /* <Type>                                                                */
   1.293 +  /*    FT_Error                                                           */
   1.294 +  /*                                                                       */
   1.295 +  /* <Description>                                                         */
   1.296 +  /*    The FreeType error code type.  A value of~0 is always interpreted  */
   1.297 +  /*    as a successful operation.                                         */
   1.298 +  /*                                                                       */
   1.299 +  typedef int  FT_Error;
   1.300 +
   1.301 +
   1.302 +  /*************************************************************************/
   1.303 +  /*                                                                       */
   1.304 +  /* <Type>                                                                */
   1.305 +  /*    FT_Pointer                                                         */
   1.306 +  /*                                                                       */
   1.307 +  /* <Description>                                                         */
   1.308 +  /*    A simple typedef for a typeless pointer.                           */
   1.309 +  /*                                                                       */
   1.310 +  typedef void*  FT_Pointer;
   1.311 +
   1.312 +
   1.313 +  /*************************************************************************/
   1.314 +  /*                                                                       */
   1.315 +  /* <Type>                                                                */
   1.316 +  /*    FT_Offset                                                          */
   1.317 +  /*                                                                       */
   1.318 +  /* <Description>                                                         */
   1.319 +  /*    This is equivalent to the ANSI~C `size_t' type, i.e., the largest  */
   1.320 +  /*    _unsigned_ integer type used to express a file size or position,   */
   1.321 +  /*    or a memory block size.                                            */
   1.322 +  /*                                                                       */
   1.323 +  typedef size_t  FT_Offset;
   1.324 +
   1.325 +
   1.326 +  /*************************************************************************/
   1.327 +  /*                                                                       */
   1.328 +  /* <Type>                                                                */
   1.329 +  /*    FT_PtrDist                                                         */
   1.330 +  /*                                                                       */
   1.331 +  /* <Description>                                                         */
   1.332 +  /*    This is equivalent to the ANSI~C `ptrdiff_t' type, i.e., the       */
   1.333 +  /*    largest _signed_ integer type used to express the distance         */
   1.334 +  /*    between two pointers.                                              */
   1.335 +  /*                                                                       */
   1.336 +  typedef ft_ptrdiff_t  FT_PtrDist;
   1.337 +
   1.338 +
   1.339 +  /*************************************************************************/
   1.340 +  /*                                                                       */
   1.341 +  /* <Struct>                                                              */
   1.342 +  /*    FT_UnitVector                                                      */
   1.343 +  /*                                                                       */
   1.344 +  /* <Description>                                                         */
   1.345 +  /*    A simple structure used to store a 2D vector unit vector.  Uses    */
   1.346 +  /*    FT_F2Dot14 types.                                                  */
   1.347 +  /*                                                                       */
   1.348 +  /* <Fields>                                                              */
   1.349 +  /*    x :: Horizontal coordinate.                                        */
   1.350 +  /*                                                                       */
   1.351 +  /*    y :: Vertical coordinate.                                          */
   1.352 +  /*                                                                       */
   1.353 +  typedef struct  FT_UnitVector_
   1.354 +  {
   1.355 +    FT_F2Dot14  x;
   1.356 +    FT_F2Dot14  y;
   1.357 +
   1.358 +  } FT_UnitVector;
   1.359 +
   1.360 +
   1.361 +  /*************************************************************************/
   1.362 +  /*                                                                       */
   1.363 +  /* <Struct>                                                              */
   1.364 +  /*    FT_Matrix                                                          */
   1.365 +  /*                                                                       */
   1.366 +  /* <Description>                                                         */
   1.367 +  /*    A simple structure used to store a 2x2 matrix.  Coefficients are   */
   1.368 +  /*    in 16.16 fixed float format.  The computation performed is:        */
   1.369 +  /*                                                                       */
   1.370 +  /*       {                                                               */
   1.371 +  /*          x' = x*xx + y*xy                                             */
   1.372 +  /*          y' = x*yx + y*yy                                             */
   1.373 +  /*       }                                                               */
   1.374 +  /*                                                                       */
   1.375 +  /* <Fields>                                                              */
   1.376 +  /*    xx :: Matrix coefficient.                                          */
   1.377 +  /*                                                                       */
   1.378 +  /*    xy :: Matrix coefficient.                                          */
   1.379 +  /*                                                                       */
   1.380 +  /*    yx :: Matrix coefficient.                                          */
   1.381 +  /*                                                                       */
   1.382 +  /*    yy :: Matrix coefficient.                                          */
   1.383 +  /*                                                                       */
   1.384 +  typedef struct  FT_Matrix_
   1.385 +  {
   1.386 +    FT_Fixed  xx, xy;
   1.387 +    FT_Fixed  yx, yy;
   1.388 +
   1.389 +  } FT_Matrix;
   1.390 +
   1.391 +
   1.392 +  /*************************************************************************/
   1.393 +  /*                                                                       */
   1.394 +  /* <Struct>                                                              */
   1.395 +  /*    FT_Data                                                            */
   1.396 +  /*                                                                       */
   1.397 +  /* <Description>                                                         */
   1.398 +  /*    Read-only binary data represented as a pointer and a length.       */
   1.399 +  /*                                                                       */
   1.400 +  /* <Fields>                                                              */
   1.401 +  /*    pointer :: The data.                                               */
   1.402 +  /*                                                                       */
   1.403 +  /*    length  :: The length of the data in bytes.                        */
   1.404 +  /*                                                                       */
   1.405 +  typedef struct  FT_Data_
   1.406 +  {
   1.407 +    const FT_Byte*  pointer;
   1.408 +    FT_Int          length;
   1.409 +
   1.410 +  } FT_Data;
   1.411 +
   1.412 +
   1.413 +  /*************************************************************************/
   1.414 +  /*                                                                       */
   1.415 +  /* <FuncType>                                                            */
   1.416 +  /*    FT_Generic_Finalizer                                               */
   1.417 +  /*                                                                       */
   1.418 +  /* <Description>                                                         */
   1.419 +  /*    Describe a function used to destroy the `client' data of any       */
   1.420 +  /*    FreeType object.  See the description of the @FT_Generic type for  */
   1.421 +  /*    details of usage.                                                  */
   1.422 +  /*                                                                       */
   1.423 +  /* <Input>                                                               */
   1.424 +  /*    The address of the FreeType object which is under finalization.    */
   1.425 +  /*    Its client data is accessed through its `generic' field.           */
   1.426 +  /*                                                                       */
   1.427 +  typedef void  (*FT_Generic_Finalizer)(void*  object);
   1.428 +
   1.429 +
   1.430 +  /*************************************************************************/
   1.431 +  /*                                                                       */
   1.432 +  /* <Struct>                                                              */
   1.433 +  /*    FT_Generic                                                         */
   1.434 +  /*                                                                       */
   1.435 +  /* <Description>                                                         */
   1.436 +  /*    Client applications often need to associate their own data to a    */
   1.437 +  /*    variety of FreeType core objects.  For example, a text layout API  */
   1.438 +  /*    might want to associate a glyph cache to a given size object.      */
   1.439 +  /*                                                                       */
   1.440 +  /*    Most FreeType object contains a `generic' field, of type           */
   1.441 +  /*    FT_Generic, which usage is left to client applications and font    */
   1.442 +  /*    servers.                                                           */
   1.443 +  /*                                                                       */
   1.444 +  /*    It can be used to store a pointer to client-specific data, as well */
   1.445 +  /*    as the address of a `finalizer' function, which will be called by  */
   1.446 +  /*    FreeType when the object is destroyed (for example, the previous   */
   1.447 +  /*    client example would put the address of the glyph cache destructor */
   1.448 +  /*    in the `finalizer' field).                                         */
   1.449 +  /*                                                                       */
   1.450 +  /* <Fields>                                                              */
   1.451 +  /*    data      :: A typeless pointer to any client-specified data. This */
   1.452 +  /*                 field is completely ignored by the FreeType library.  */
   1.453 +  /*                                                                       */
   1.454 +  /*    finalizer :: A pointer to a `generic finalizer' function, which    */
   1.455 +  /*                 will be called when the object is destroyed.  If this */
   1.456 +  /*                 field is set to NULL, no code will be called.         */
   1.457 +  /*                                                                       */
   1.458 +  typedef struct  FT_Generic_
   1.459 +  {
   1.460 +    void*                 data;
   1.461 +    FT_Generic_Finalizer  finalizer;
   1.462 +
   1.463 +  } FT_Generic;
   1.464 +
   1.465 +
   1.466 +  /*************************************************************************/
   1.467 +  /*                                                                       */
   1.468 +  /* <Macro>                                                               */
   1.469 +  /*    FT_MAKE_TAG                                                        */
   1.470 +  /*                                                                       */
   1.471 +  /* <Description>                                                         */
   1.472 +  /*    This macro converts four-letter tags which are used to label       */
   1.473 +  /*    TrueType tables into an unsigned long to be used within FreeType.  */
   1.474 +  /*                                                                       */
   1.475 +  /* <Note>                                                                */
   1.476 +  /*    The produced values *must* be 32-bit integers.  Don't redefine     */
   1.477 +  /*    this macro.                                                        */
   1.478 +  /*                                                                       */
   1.479 +#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
   1.480 +          (FT_Tag)                        \
   1.481 +          ( ( (FT_ULong)_x1 << 24 ) |     \
   1.482 +            ( (FT_ULong)_x2 << 16 ) |     \
   1.483 +            ( (FT_ULong)_x3 <<  8 ) |     \
   1.484 +              (FT_ULong)_x4         )
   1.485 +
   1.486 +
   1.487 +  /*************************************************************************/
   1.488 +  /*************************************************************************/
   1.489 +  /*                                                                       */
   1.490 +  /*                    L I S T   M A N A G E M E N T                      */
   1.491 +  /*                                                                       */
   1.492 +  /*************************************************************************/
   1.493 +  /*************************************************************************/
   1.494 +
   1.495 +
   1.496 +  /*************************************************************************/
   1.497 +  /*                                                                       */
   1.498 +  /* <Section>                                                             */
   1.499 +  /*    list_processing                                                    */
   1.500 +  /*                                                                       */
   1.501 +  /*************************************************************************/
   1.502 +
   1.503 +
   1.504 +  /*************************************************************************/
   1.505 +  /*                                                                       */
   1.506 +  /* <Type>                                                                */
   1.507 +  /*    FT_ListNode                                                        */
   1.508 +  /*                                                                       */
   1.509 +  /* <Description>                                                         */
   1.510 +  /*     Many elements and objects in FreeType are listed through an       */
   1.511 +  /*     @FT_List record (see @FT_ListRec).  As its name suggests, an      */
   1.512 +  /*     FT_ListNode is a handle to a single list element.                 */
   1.513 +  /*                                                                       */
   1.514 +  typedef struct FT_ListNodeRec_*  FT_ListNode;
   1.515 +
   1.516 +
   1.517 +  /*************************************************************************/
   1.518 +  /*                                                                       */
   1.519 +  /* <Type>                                                                */
   1.520 +  /*    FT_List                                                            */
   1.521 +  /*                                                                       */
   1.522 +  /* <Description>                                                         */
   1.523 +  /*    A handle to a list record (see @FT_ListRec).                       */
   1.524 +  /*                                                                       */
   1.525 +  typedef struct FT_ListRec_*  FT_List;
   1.526 +
   1.527 +
   1.528 +  /*************************************************************************/
   1.529 +  /*                                                                       */
   1.530 +  /* <Struct>                                                              */
   1.531 +  /*    FT_ListNodeRec                                                     */
   1.532 +  /*                                                                       */
   1.533 +  /* <Description>                                                         */
   1.534 +  /*    A structure used to hold a single list element.                    */
   1.535 +  /*                                                                       */
   1.536 +  /* <Fields>                                                              */
   1.537 +  /*    prev :: The previous element in the list.  NULL if first.          */
   1.538 +  /*                                                                       */
   1.539 +  /*    next :: The next element in the list.  NULL if last.               */
   1.540 +  /*                                                                       */
   1.541 +  /*    data :: A typeless pointer to the listed object.                   */
   1.542 +  /*                                                                       */
   1.543 +  typedef struct  FT_ListNodeRec_
   1.544 +  {
   1.545 +    FT_ListNode  prev;
   1.546 +    FT_ListNode  next;
   1.547 +    void*        data;
   1.548 +
   1.549 +  } FT_ListNodeRec;
   1.550 +
   1.551 +
   1.552 +  /*************************************************************************/
   1.553 +  /*                                                                       */
   1.554 +  /* <Struct>                                                              */
   1.555 +  /*    FT_ListRec                                                         */
   1.556 +  /*                                                                       */
   1.557 +  /* <Description>                                                         */
   1.558 +  /*    A structure used to hold a simple doubly-linked list.  These are   */
   1.559 +  /*    used in many parts of FreeType.                                    */
   1.560 +  /*                                                                       */
   1.561 +  /* <Fields>                                                              */
   1.562 +  /*    head :: The head (first element) of doubly-linked list.            */
   1.563 +  /*                                                                       */
   1.564 +  /*    tail :: The tail (last element) of doubly-linked list.             */
   1.565 +  /*                                                                       */
   1.566 +  typedef struct  FT_ListRec_
   1.567 +  {
   1.568 +    FT_ListNode  head;
   1.569 +    FT_ListNode  tail;
   1.570 +
   1.571 +  } FT_ListRec;
   1.572 +
   1.573 +
   1.574 +  /* */
   1.575 +
   1.576 +#define FT_IS_EMPTY( list )  ( (list).head == 0 )
   1.577 +
   1.578 +  /* return base error code (without module-specific prefix) */
   1.579 +#define FT_ERROR_BASE( x )    ( (x) & 0xFF )
   1.580 +
   1.581 +  /* return module error code */
   1.582 +#define FT_ERROR_MODULE( x )  ( (x) & 0xFF00U )
   1.583 +
   1.584 +#define FT_BOOL( x )  ( (FT_Bool)( x ) )
   1.585 +
   1.586 +FT_END_HEADER
   1.587 +
   1.588 +#endif /* __FTTYPES_H__ */
   1.589 +
   1.590 +
   1.591 +/* END */