kc3-lang/freetype/src/psaux/psread.c

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• Hash : e1339133
  Author :
  Date : 2020-06-08T13:31:55
  

  Make macros for header file names optional. We no longer have to take care of the 8.3 file name limit; this allows us (a) to introduce longer, meaningful file names, and (b) to avoid macro names in `#include' lines altogether since some compilers (most notably Visual C++) doesn't support this properly. */*: Replace #include FOO_H with #include <freetype/foo.h> or something similar. Also update the documentation.

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• src/psaux/psread.c

• /****************************************************************************
   *
   * psread.c
   *
   *   Adobe's code for stream handling (body).
   *
   * Copyright 2007-2013 Adobe Systems Incorporated.
   *
   * This software, and all works of authorship, whether in source or
   * object code form as indicated by the copyright notice(s) included
   * herein (collectively, the "Work") is made available, and may only be
   * used, modified, and distributed under the FreeType Project License,
   * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
   * FreeType Project License, each contributor to the Work hereby grants
   * to any individual or legal entity exercising permissions granted by
   * the FreeType Project License and this section (hereafter, "You" or
   * "Your") a perpetual, worldwide, non-exclusive, no-charge,
   * royalty-free, irrevocable (except as stated in this section) patent
   * license to make, have made, use, offer to sell, sell, import, and
   * otherwise transfer the Work, where such license applies only to those
   * patent claims licensable by such contributor that are necessarily
   * infringed by their contribution(s) alone or by combination of their
   * contribution(s) with the Work to which such contribution(s) was
   * submitted.  If You institute patent litigation against any entity
   * (including a cross-claim or counterclaim in a lawsuit) alleging that
   * the Work or a contribution incorporated within the Work constitutes
   * direct or contributory patent infringement, then any patent licenses
   * granted to You under this License for that Work shall terminate as of
   * the date such litigation is filed.
   *
   * By using, modifying, or distributing the Work you indicate that you
   * have read and understood the terms and conditions of the
   * FreeType Project License as well as those provided in this section,
   * and you accept them fully.
   *
   */
  
  
  #include "psft.h"
  #include <freetype/internal/ftdebug.h>
  
  #include "psglue.h"
  
  #include "pserror.h"
  
  
    /* Define CF2_IO_FAIL as 1 to enable random errors and random */
    /* value errors in I/O.                                       */
  #define CF2_IO_FAIL  0
  
  
  #if CF2_IO_FAIL
  
    /* set the .00 value to a nonzero probability */
    static int
    randomError2( void )
    {
      /* for region buffer ReadByte (interp) function */
      return (double)rand() / RAND_MAX < .00;
    }
  
    /* set the .00 value to a nonzero probability */
    static CF2_Int
    randomValue()
    {
      return (double)rand() / RAND_MAX < .00 ? rand() : 0;
    }
  
  #endif /* CF2_IO_FAIL */
  
  
    /* Region Buffer                                      */
    /*                                                    */
    /* Can be constructed from a copied buffer managed by */
    /* `FCM_getDatablock'.                                */
    /* Reads bytes with check for end of buffer.          */
  
    /* reading past the end of the buffer sets error and returns zero */
    FT_LOCAL_DEF( CF2_Int )
    cf2_buf_readByte( CF2_Buffer  buf )
    {
      if ( buf->ptr < buf->end )
      {
  #if CF2_IO_FAIL
        if ( randomError2() )
        {
          CF2_SET_ERROR( buf->error, Invalid_Stream_Operation );
          return 0;
        }
  
        return *(buf->ptr)++ + randomValue();
  #else
        return *(buf->ptr)++;
  #endif
      }
      else
      {
        CF2_SET_ERROR( buf->error, Invalid_Stream_Operation );
        return 0;
      }
    }
  
  
    /* note: end condition can occur without error */
    FT_LOCAL_DEF( FT_Bool )
    cf2_buf_isEnd( CF2_Buffer  buf )
    {
      return FT_BOOL( buf->ptr >= buf->end );
    }
  
  
  /* END */
  

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