bug#20291: png files don't display on emacs 24.4.1

bug#20291: png files don't display on emacs 24.4.1

[Mario Valencia]

[-- Attachment #1: Type: text/plain, Size: 2063 bytes --]

On the previous emacs 24.3 it png files display just fine with
libpng14-14.dll. On emacs 24.4.1 on windows 8, all png files give an error:
"Cannot display image: (Invalid image specification)". Other images, like
jpg display fine. I have this files in the emacs bin directory: (as you can
see i have libpng-16-16.dll)

GNU Emacs 24.4.1 (i686-pc-mingw32)
 of 2014-10-24 on LEG570

c:/Users/mario/Desktop/emacs-24.4/bin:
  total used in directory 19701 available 268668268
  drwxrwxrwx  1 mario mario    8192 03-11 11:52 .
  drwxrwxrwx  1 mario mario       0 03-28 14:28 ..
  -rwxrwxrwx  1 mario mario  590441 03-08 00:27 addpm.exe
  -rwxrwxrwx  1 mario mario  978880 03-08 00:27 ctags.exe
  -rwxrwxrwx  1 mario mario  730198 03-08 00:27 ebrowse.exe
  -rwxrwxrwx  1 mario mario 9220110 03-08 00:27 emacs.exe
  -rwxrwxrwx  1 mario mario 1021304 03-08 00:27 emacsclient.exe
  -rwxrwxrwx  1 mario mario  667492 03-08 00:27 emacsclientw.exe
  -rwxrwxrwx  1 mario mario  975457 03-08 00:27 etags.exe
  -rw-rw-rw-  1 mario mario    7168 03-08 00:27 grep-changelog
  -rw-rw-rw-  1 mario mario  532345 03-08 00:27 libXpm.dll
  -rw-rw-rw-  1 mario mario   28702 03-11 11:36 libgif-7.dll
  -rw-rw-rw-  1 mario mario  426102 03-11 11:52 libgmp-10.dll
  -rw-rw-rw-  1 mario mario 1092935 03-11 11:52 libgnutls-28.dll
  -rw-rw-rw-  1 mario mario   73994 03-11 11:52 libgnutls-openssl-27.dll
  -rw-rw-rw-  1 mario mario  175142 03-11 11:52 libhogweed-2-5.dll
  -rw-rw-rw-  1 mario mario 1070103 03-11 11:52 libiconv-2.dll
  -rw-rw-rw-  1 mario mario  122719 03-11 11:52 libintl-8.dll
  -rw-rw-rw-  1 mario mario  211760 03-11 11:36 libjpeg-9.dll
  -rw-rw-rw-  1 mario mario  184425 03-11 11:52 libnettle-4-7.dll
  -rw-rw-rw-  1 mario mario  194157 03-11 11:37 libpng16-16.dll
  -rw-rw-rw-  1 mario mario   94639 03-11 11:52 libtasn1-6.dll
  -rw-rw-rw-  1 mario mario 1121380 03-11 11:36 libxml2-2.dll
  -rw-rw-rw-  1 mario mario   79360 03-11 11:52 regex2.dll
  -rwxrwxrwx  1 mario mario  494367 03-08 00:27 runemacs.exe
  -rw-rw-rw-  1 mario mario   72192 03-11 11:36 zlib1.dll

[-- Attachment #2: Type: text/html, Size: 2524 bytes --]

bug#20291: png files don't display on emacs 24.4.1

[Eli Zaretskii]

> Date: Fri, 10 Apr 2015 05:32:49 -0500
> From: Mario Valencia <mariovalspi@gmail.com>
> 
> On the previous emacs 24.3 it png files display just fine with libpng14-14.dll.
> On emacs 24.4.1 on windows 8, all png files give an error: "Cannot display
> image: (Invalid image specification)". Other images, like jpg display fine. I
> have this files in the emacs bin directory: (as you can see i have
> libpng-16-16.dll)

What does this produce:

  M-: (image-type-available-p 'png) RET

And what does this produce:

  M-: libpng-version RET

And finally, how about this one:

  M-: dynamic-library-alist

> -rw-rw-rw- 1 mario mario 72192 03-11 11:36 zlib1.dll

This DLL's size is much smaller than what I have on my machine;
perhaps this is your problem?  (libpng depends on zlib1.dll.)  Make
sure you use the one that came with libpng.

bug#20291: png files don't display on emacs 24.4.1

[Mario Valencia]

[-- Attachment #1: Type: text/plain, Size: 1094 bytes --]

The zlib dll was the problem. I replaced it with the new version and it
worked properly. I probably copied it from the older emacs folder. Thank
you!

2015-04-10 5:53 GMT-05:00 Eli Zaretskii <eliz@gnu.org>:

> > Date: Fri, 10 Apr 2015 05:32:49 -0500
> > From: Mario Valencia <mariovalspi@gmail.com>
> >
> > On the previous emacs 24.3 it png files display just fine with
> libpng14-14.dll.
> > On emacs 24.4.1 on windows 8, all png files give an error: "Cannot
> display
> > image: (Invalid image specification)". Other images, like jpg display
> fine. I
> > have this files in the emacs bin directory: (as you can see i have
> > libpng-16-16.dll)
>
> What does this produce:
>
>   M-: (image-type-available-p 'png) RET
>
> And what does this produce:
>
>   M-: libpng-version RET
>
> And finally, how about this one:
>
>   M-: dynamic-library-alist
>
> > -rw-rw-rw- 1 mario mario 72192 03-11 11:36 zlib1.dll
>
> This DLL's size is much smaller than what I have on my machine;
> perhaps this is your problem?  (libpng depends on zlib1.dll.)  Make
> sure you use the one that came with libpng.
>

[-- Attachment #2: Type: text/html, Size: 1558 bytes --]

bug#20291: png files don't display on emacs 24.4.1

[Eli Zaretskii]

> Date: Fri, 10 Apr 2015 06:05:33 -0500
> From: Mario Valencia <mariovalspi@gmail.com>
> Cc: 20291@debbugs.gnu.org
> 
> The zlib dll was the problem. I replaced it with the new version and it worked
> properly. I probably copied it from the older emacs folder. Thank you!

OK, closing.