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- Path: hades.rz.uni-sb.de!news
- From: rajsta@med-rz.uni-sb.de (Johannes Stahl)
- Newsgroups: comp.graphics.algorithms,comp.lang.c++,comp.os.ms-windows.programmer.graphics,comp.os.ms-windows.programmer.multimedia,comp.os.ms-windows.programmer.win32
- Subject: Re: IJG JPEG Engine and Win32
- Date: Mon, 08 Jan 1996 14:38:18 GMT
- Organization: University of Saarland, Computing Center, Germany.
- Message-ID: <4cr8tp$dp7@hades.rz.uni-sb.de>
- References: <4cemir$6vb@redstone.interpath.net> <TGL.96Jan3202549@netcom21.netcom.com> <4cj5ct$nth@redstone.interpath.net>
- NNTP-Posting-Host: ukdra02.med-ra.uni-sb.de
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-
- fortunat@interpath.com (Jumpstile Turner) wrote:
-
- >In article <TGL.96Jan3202549@netcom21.netcom.com>, tgl@netcom.com said:
- >> * Compiling them with different declarations for "boolean". The IJG
- >> code by default defines boolean = int, but Windows prefers
- >> boolean = unsigned char. Theoretically you should get a compile
- >> error if both typedefs are visible in one compilation, but maybe
- >> Borland fails to complain about it.
- >>
- >>If neither of those explain your problem, you'll have to do some more
- >>digging, but I'll bet lunch that the problem is of this general ilk.
-
- > Well I think this is my problem. I don't know how to go about fixing it
- >though. Being as my application is a GUI application I NEED to include the
- >windows.h file, so "BOOLEAN" will be defined as an unsigned char, however
- >"boolean" is defined in one of the jpeglib includes as int. If I went through
- >all the source and changed "boolean" to "BOOLEAN" would this screw up jpeglib?
- >Being as the source uses 0 for FALSE and 1 for TRUE I don't see why this
- >shouldn't work. I'll have to give it a go.
-
- look at the first lines of my jconfig.h:
-
- #define HAVE_BOOLEAN // this will avoid redefinition of boolean
- // the following line is probably or definitely a hack
- // since it implicitly duplifies the definiction from rpcnrd.h
- typedef unsigned char boolean; //conflict with RPCNRD.H ---
- // AAAAArrrrrrggghh! JST
-
- > Oh yes, and lastly, with the borland BCC32 command line compiler, jdmerge.c
- >will not compile. I get an internal backend C1107 error at line 280. This
- >seems like a bug in the borland compiler. It will compile fine if I use
- >BCC32A, the alternate compiler. I have to undefine UPSAMPLE_MERGING_SUPPORTED
- >so it will skip the contents of jdmerge.c to get it to compile with the
- >standard WIN32 compiler.
- You are right, this is a known bug. Most of the IJG library features
- work well without UPSAMPLE_MERGING_SUPPORTED.
-
-
-
-
-
- --
- Dr. Johannes Stahl Abt. Radiodiagnostik
- Radiologische Klinik, D66421 Homburg/Saar (GERMANY)
- Tel.: +49 6841 164600 Fax: +49 6841 164696
- e-mail: rajsta@med-rz.uni-sb.de
- http://www.med-rz.uni-sb.de/med_fak/radiodiagnostik/index.html
-
-