Removed libfreetype fork, replacing it with a submodule and some Inferno-specific files.

Retained the license documents and updated the header files.

1 files changed, 129 insertions, 74 deletions

diff --git a/include/freetype/ftmoderr.h b/include/freetype/ftmoderr.h
index 59e15c10..6722fbf8 100644
--- a/include/freetype/ftmoderr.h
+++ b/include/freetype/ftmoderr.h
@@ -1,61 +1,107 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftmoderr.h                                                             */
-/*                                                                         */
-/*    FreeType module error offsets (specification).                       */
-/*                                                                         */
-/*  Copyright 2001, 2002 by                                                */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the FreeType module error offsets.        */
-  /*                                                                       */
-  /* The lower byte gives the error code, the higher byte gives the        */
-  /* module.  The base module has error offset 0.  For example, the error  */
-  /* `FT_Err_Invalid_File_Format' has value 0x003, the error               */
-  /* `TT_Err_Invalid_File_Format' has value 0xB03, the error               */
-  /* `T1_Err_Invalid_File_Format' has value 0xC03, etc.                    */
-  /*                                                                       */
-  /* Undefine the macro FT_CONFIG_OPTION_USE_MODULE_ERRORS in ftoption.h   */
-  /* to make the higher byte always zero (disabling the module error       */
-  /* mechanism).                                                           */
-  /*                                                                       */
-  /* It can also be used to create a module error message table easily     */
-  /* with something like                                                   */
-  /*                                                                       */
-  /*   {                                                                   */
-  /*     #undef __FTMODERR_H__                                             */
-  /*     #define FT_MODERRDEF( e, v, s )  { FT_Mod_Err_ ## e, s },         */
-  /*     #define FT_MODERR_START_LIST     {                                */
-  /*     #define FT_MODERR_END_LIST       { 0, 0 } };                      */
-  /*                                                                       */
-  /*     const struct                                                      */
-  /*     {                                                                 */
-  /*       int          mod_err_offset;                                    */
-  /*       const char*  mod_err_msg                                        */
-  /*     } ft_mod_errors[] =                                               */
-  /*                                                                       */
-  /*     #include FT_MODULE_ERRORS_H                                       */
-  /*   }                                                                   */
-  /*                                                                       */
-  /* To use such a table, all errors must be ANDed with 0xFF00 to remove   */
-  /* the error code.                                                       */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-#ifndef __FTMODERR_H__
-#define __FTMODERR_H__
+/****************************************************************************
+ *
+ * ftmoderr.h
+ *
+ *   FreeType module error offsets (specification).
+ *
+ * Copyright (C) 2001-2024 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the FreeType module error codes.
+   *
+   * If the macro `FT_CONFIG_OPTION_USE_MODULE_ERRORS` in `ftoption.h` is
+   * set, the lower byte of an error value identifies the error code as
+   * usual.  In addition, the higher byte identifies the module.  For
+   * example, the error `FT_Err_Invalid_File_Format` has value 0x0003, the
+   * error `TT_Err_Invalid_File_Format` has value 0x1303, the error
+   * `T1_Err_Invalid_File_Format` has value 0x1403, etc.
+   *
+   * Note that `FT_Err_Ok`, `TT_Err_Ok`, etc. are always equal to zero,
+   * including the high byte.
+   *
+   * If `FT_CONFIG_OPTION_USE_MODULE_ERRORS` isn't set, the higher byte of an
+   * error value is set to zero.
+   *
+   * To hide the various `XXX_Err_` prefixes in the source code, FreeType
+   * provides some macros in `fttypes.h`.
+   *
+   *   FT_ERR( err )
+   *
+   *     Add current error module prefix (as defined with the `FT_ERR_PREFIX`
+   *     macro) to `err`.  For example, in the BDF module the line
+   *
+   *     ```
+   *       error = FT_ERR( Invalid_Outline );
+   *     ```
+   *
+   *     expands to
+   *
+   *     ```
+   *       error = BDF_Err_Invalid_Outline;
+   *     ```
+   *
+   *     For simplicity, you can always use `FT_Err_Ok` directly instead of
+   *     `FT_ERR( Ok )`.
+   *
+   *   FT_ERR_EQ( errcode, err )
+   *   FT_ERR_NEQ( errcode, err )
+   *
+   *     Compare error code `errcode` with the error `err` for equality and
+   *     inequality, respectively.  Example:
+   *
+   *     ```
+   *       if ( FT_ERR_EQ( error, Invalid_Outline ) )
+   *         ...
+   *     ```
+   *
+   *     Using this macro you don't have to think about error prefixes.  Of
+   *     course, if module errors are not active, the above example is the
+   *     same as
+   *
+   *     ```
+   *       if ( error == FT_Err_Invalid_Outline )
+   *         ...
+   *     ```
+   *
+   *   FT_ERROR_BASE( errcode )
+   *   FT_ERROR_MODULE( errcode )
+   *
+   *     Get base error and module error code, respectively.
+   *
+   * It can also be used to create a module error message table easily with
+   * something like
+   *
+   * ```
+   *   #undef FTMODERR_H_
+   *   #define FT_MODERRDEF( e, v, s )  { FT_Mod_Err_ ## e, s },
+   *   #define FT_MODERR_START_LIST     {
+   *   #define FT_MODERR_END_LIST       { 0, 0 } };
+   *
+   *   const struct
+   *   {
+   *     int          mod_err_offset;
+   *     const char*  mod_err_msg
+   *   } ft_mod_errors[] =
+   *
+   *   #include <freetype/ftmoderr.h>
+   * ```
+   *
+   */
+
+
+#ifndef FTMODERR_H_
+#define FTMODERR_H_
 
 
   /*******************************************************************/
@@ -102,21 +148,30 @@
 #endif
 
 
-  FT_MODERRDEF( Base,     0x000, "base module" )
-  FT_MODERRDEF( Autohint, 0x100, "autohinter module" )
-  FT_MODERRDEF( Cache,    0x200, "cache module" )
-  FT_MODERRDEF( CFF,      0x300, "CFF module" )
-  FT_MODERRDEF( CID,      0x400, "CID module" )
-  FT_MODERRDEF( PCF,      0x500, "PCF module" )
-  FT_MODERRDEF( PSaux,    0x600, "PS auxiliary module" )
-  FT_MODERRDEF( PSnames,  0x700, "PS names module" )
-  FT_MODERRDEF( Raster,   0x800, "raster module" )
-  FT_MODERRDEF( SFNT,     0x900, "SFNT module" )
-  FT_MODERRDEF( Smooth,   0xA00, "smooth raster module" )
-  FT_MODERRDEF( TrueType, 0xB00, "TrueType module" )
-  FT_MODERRDEF( Type1,    0xC00, "Type 1 module" )
-  FT_MODERRDEF( Winfonts, 0xD00, "Windows FON/FNT module" )
-  FT_MODERRDEF( PFR,      0xE00, "PFR module" )
+  FT_MODERRDEF( Base,      0x000, "base module" )
+  FT_MODERRDEF( Autofit,   0x100, "autofitter module" )
+  FT_MODERRDEF( BDF,       0x200, "BDF module" )
+  FT_MODERRDEF( Bzip2,     0x300, "Bzip2 module" )
+  FT_MODERRDEF( Cache,     0x400, "cache module" )
+  FT_MODERRDEF( CFF,       0x500, "CFF module" )
+  FT_MODERRDEF( CID,       0x600, "CID module" )
+  FT_MODERRDEF( Gzip,      0x700, "Gzip module" )
+  FT_MODERRDEF( LZW,       0x800, "LZW module" )
+  FT_MODERRDEF( OTvalid,   0x900, "OpenType validation module" )
+  FT_MODERRDEF( PCF,       0xA00, "PCF module" )
+  FT_MODERRDEF( PFR,       0xB00, "PFR module" )
+  FT_MODERRDEF( PSaux,     0xC00, "PS auxiliary module" )
+  FT_MODERRDEF( PShinter,  0xD00, "PS hinter module" )
+  FT_MODERRDEF( PSnames,   0xE00, "PS names module" )
+  FT_MODERRDEF( Raster,    0xF00, "raster module" )
+  FT_MODERRDEF( SFNT,     0x1000, "SFNT module" )
+  FT_MODERRDEF( Smooth,   0x1100, "smooth raster module" )
+  FT_MODERRDEF( TrueType, 0x1200, "TrueType module" )
+  FT_MODERRDEF( Type1,    0x1300, "Type 1 module" )
+  FT_MODERRDEF( Type42,   0x1400, "Type 42 module" )
+  FT_MODERRDEF( Winfonts, 0x1500, "Windows FON/FNT module" )
+  FT_MODERRDEF( GXvalid,  0x1600, "GX validation module" )
+  FT_MODERRDEF( Sdf,      0x1700, "Signed distance field raster module" )
 
 
 #ifdef FT_MODERR_END_LIST
@@ -143,7 +198,7 @@
 #undef FT_NEED_EXTERN_C
 
 
-#endif /* __FTMODERR_H__ */
+#endif /* FTMODERR_H_ */
 
 
 /* END */