Re: [ft] freetype2 and Win64

[mpsuzuki]

Hi,

Thank you for poining out the warning on Win64 platform
and the analysis. I want to take a look, could you give
me the information about your development environment to
reproduce this issue? The messages you see look like by
gcc.

I've ever worked for a few LP64 systems of Unix and Mac
OS X, but never worked for Win64.

Regards,
mpsuzuki


On Wed, 2 Sep 2009 18:27:22 -0400
NightStrike <address@hidden> wrote:

>While compiling freetype2 for Win64 to meet a VLC dependency, I
>encounter these warnings:
>
>configure: WARNING: unrecognized options: --enable-msw,
>--disable-dependency-tracking
>configure: WARNING: unrecognized options: --enable-msw,
>--disable-dependency-tracking
>In file included from
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cff/cff.c:26:0:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cff/cffgload.c:
>In function ‘cff_decoder_parse_charstrings’:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cff/cffgload.c:866:12:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cff/cffgload.c:867:12:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cff/cffgload.c:868:12:
>warning: cast from pointer to integer of different size
>In file included from
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdf.c:30:0:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdflib.c:
>In function ‘bdf_create_property’:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdflib.c:1006:35:
>warning: cast to pointer from integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdflib.c:
>In function ‘bdf_get_property’:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdflib.c:1031:14:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdflib.c:
>In function ‘_bdf_add_property’:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdflib.c:1276:26:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdflib.c:1338:14:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdflib.c:1375:28:
>warning: cast to pointer from integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdflib.c:
>In function ‘_bdf_parse_start’:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdflib.c:2057:44:
>warning: cast to pointer from integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdflib.c:
>In function ‘bdf_get_font_property’:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/bdf/bdflib.c:2475:33:
>warning: cast from pointer to integer of different size
>In file included from
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcache.c:25:0:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftccmap.c:
>In function ‘FTC_CMapCache_Lookup’:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftccmap.c:371:12:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftccmap.c:371:12:
>warning: cast from pointer to integer of different size
>In file included from
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcache.c:29:0:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcbasic.c:
>In function ‘FTC_ImageCache_Lookup’:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcbasic.c:354:12:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcbasic.c:354:12:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcbasic.c:
>In function ‘FTC_ImageCache_LookupScaler’:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcbasic.c:416:12:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcbasic.c:416:12:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcbasic.c:
>In function ‘FTC_SBitCache_Lookup’:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcbasic.c:677:12:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcbasic.c:677:12:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcbasic.c:
>In function ‘FTC_SBitCache_LookupScaler’:
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcbasic.c:740:12:
>warning: cast from pointer to integer of different size
>/home/nightstrike/work/vlc/extras/contrib/src/freetype2/src/cache/ftcbasic.c:740:12:
>warning: cast from pointer to integer of different size
>rmdir: 
>/home/nightstrike/work/vlc/extras/contrib/include/freetype2/freetype/internal:
>No such file or directory
>
>
>
>All of these are related to castings that assume that pointers are the
>size of long.  On this platform, they are not.  I looked into some of
>them, and I see for instance this:
>
>  /*************************************************************************/
>  /*                                                                       */
>  /* <Type>                                                                */
>  /*    FT_Fixed                                                           */
>  /*                                                                       */
>  /* <Description>                                                         */
>  /*    This type is used to store 16.16 fixed float values, like scaling  */
>  /*    values or matrix coefficients.                                     */
>  /*                                                                       */
>  typedef signed long  FT_Fixed;
>
>
>Well, that's an easy fix.  Just change signed long to intptr_t, and
>problems are solved.
>
>However, the comments in the typedef say that FT_Fixed is expected to
>be 16 bits by 16 bits.  This isn't the cast even on a linux 64 system,
>where long is 32.32.  Further, why is a type like this being used to
>store pointers?  Surely a pointer isn't a matrix coefficient.
>
>I want to be able to properly port this, but it seems like this isn't
>as trivial as just replacing a bunch of long's with intptr_t's.
>
>
>Where should we go from here?
>
>
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