kc3-lang/freetype/src/base/ftinit.c

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• Hash : 92aa527a
  Author :
  Date : 2005-05-23T21:33:02
  

  * builds/amiga/makefile.os4 (WARNINGS), builds/compiler/gcc-dev.mk (CFLAGS), builds/compiler/gcc.mk (CFLAGS): Remove -fno-strict-aliasing. Say you have `(Foo*)x' and want to assign, pass, or return it as `(Bar*)'. If you simply say `x' or `(Bar*)x', then the C compiler would warn you that type casting incompatible pointer types breaks strict-aliasing. The solution is to cast to `(void*)' instead which is the generic pointer type, so the compiler knows that it should make no strict-aliasing assumption on `x'. But the problem with `(void*)x' is that seems like in C++, unlike C, `void*' is not a generic pointer type and assigning `void*' to `Bar*' without a cast causes an error. The solution is to cast to `Bar*' too, with `(Bar*)(void*)x' as the result -- this is what the patch does. * include/freetype/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP), include/freetype/cache/ftcmru.h (FTC_MRULIST_LOOKUP_CMP): Remove cast on lvalue, use a temporary pointer instead. Cast temporarily to (void*) to not break strict aliasing. * include/freetype/internal/ftmemory.h (FT_MEM_ALLOC, FT_MEM_REALLOC, FT_MEM_QALLOC, FT_MEM_QREALLOC, FT_MEM_FREE), src/base/ftglyph.c (FT_Glyph_To_Bitmap): Cast temporarily to (void*) to not break strict aliasing. * src/base/ftinit.c (FT_USE_MODULE): Fix wrong type information. * builds/unix/configure.ac (XX_CFLAGS): Remove -fno-strict-aliasing. * src/sfnt/rules.mk (SFNT_DRV_SRC): Don't include ttsbit0.c -- it is currently loaded from ttsbit.c. Other formatting.

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• src/base/ftinit.c

• /***************************************************************************/
  /*                                                                         */
  /*  ftinit.c                                                               */
  /*                                                                         */
  /*    FreeType initialization layer (body).                                */
  /*                                                                         */
  /*  Copyright 1996-2001, 2002, 2005 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.                                        */
  /*                                                                         */
  /***************************************************************************/
  
    /*************************************************************************/
    /*                                                                       */
    /*  The purpose of this file is to implement the following two           */
    /*  functions:                                                           */
    /*                                                                       */
    /*  FT_Add_Default_Modules():                                            */
    /*     This function is used to add the set of default modules to a      */
    /*     fresh new library object.  The set is taken from the header file  */
    /*     `freetype/config/ftmodule.h'.  See the document `FreeType 2.0     */
    /*     Build System' for more information.                               */
    /*                                                                       */
    /*  FT_Init_FreeType():                                                  */
    /*     This function creates a system object for the current platform,   */
    /*     builds a library out of it, then calls FT_Default_Drivers().      */
    /*                                                                       */
    /*  Note that even if FT_Init_FreeType() uses the implementation of the  */
    /*  system object defined at build time, client applications are still   */
    /*  able to provide their own `ftsystem.c'.                              */
    /*                                                                       */
    /*************************************************************************/
  
  
  #include <ft2build.h>
  #include FT_CONFIG_CONFIG_H
  #include FT_INTERNAL_OBJECTS_H
  #include FT_INTERNAL_DEBUG_H
  #include FT_MODULE_H
  
  
    /*************************************************************************/
    /*                                                                       */
    /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
    /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
    /* messages during execution.                                            */
    /*                                                                       */
  #undef  FT_COMPONENT
  #define FT_COMPONENT  trace_init
  
  #undef  FT_USE_MODULE
  #ifdef __cplusplus
  #define FT_USE_MODULE( x )  extern "C" const FT_Module_Class  x;
  #else
  #define FT_USE_MODULE( x )  extern const FT_Module_Class  x;
  #endif
  
  
  #include FT_CONFIG_MODULES_H
  
  
  #undef  FT_USE_MODULE
  #define FT_USE_MODULE( x )  (const FT_Module_Class*)&(x),
  
    static
    const FT_Module_Class*  const ft_default_modules[] =
    {
  #include FT_CONFIG_MODULES_H
      0
    };
  
  
    /* documentation is in ftmodule.h */
  
    FT_EXPORT_DEF( void )
    FT_Add_Default_Modules( FT_Library  library )
    {
      FT_Error                       error;
      const FT_Module_Class* const*  cur;
  
  
      /* test for valid `library' delayed to FT_Add_Module() */
  
      cur = ft_default_modules;
      while ( *cur )
      {
        error = FT_Add_Module( library, *cur );
        /* notify errors, but don't stop */
        if ( error )
        {
          FT_ERROR(( "FT_Add_Default_Module: Cannot install `%s', error = 0x%x\n",
                     (*cur)->module_name, error ));
        }
        cur++;
      }
    }
  
  
    /* documentation is in freetype.h */
  
    FT_EXPORT_DEF( FT_Error )
    FT_Init_FreeType( FT_Library  *alibrary )
    {
      FT_Error   error;
      FT_Memory  memory;
  
  
      /* First of all, allocate a new system object -- this function is part */
      /* of the system-specific component, i.e. `ftsystem.c'.                */
  
      memory = FT_New_Memory();
      if ( !memory )
      {
        FT_ERROR(( "FT_Init_FreeType: cannot find memory manager\n" ));
        return FT_Err_Unimplemented_Feature;
      }
  
      /* build a library out of it, then fill it with the set of */
      /* default drivers.                                        */
  
      error = FT_New_Library( memory, alibrary );
      if ( !error )
      {
        (*alibrary)->version_major = FREETYPE_MAJOR;
        (*alibrary)->version_minor = FREETYPE_MINOR;
        (*alibrary)->version_patch = FREETYPE_PATCH;
  
        FT_Add_Default_Modules( *alibrary );
      }
  
      return error;
    }
  
  
    /* documentation is in freetype.h */
  
    FT_EXPORT_DEF( FT_Error )
    FT_Done_FreeType( FT_Library  library )
    {
      if ( library )
      {
        FT_Memory  memory = library->memory;
  
  
        /* Discard the library object */
        FT_Done_Library( library );
  
        /* discard memory manager */
        FT_Done_Memory( memory );
      }
  
      return FT_Err_Ok;
    }
  
  
  /* END */
  

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