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After an upgrade from CGSmartImage 1.14 to 1.15 my transparent gifs now show a black background. i disabled embedding and tried forced file extensions but that makes no difference. all this happened on a test server (with plenty of backups) so there's no pressure, but I'm reluctant to upgrade live site. anyone encountered this problem? i run Linux 3.2.0-4-amd64 #1 SMP Debian 3.2.51-1 x86_64 GNU/Linux with php.5.4.4 with some disabled functions:

pcntl_alarm, pcntl_fork, pcntl_waitpid, pcntl_wait, pcntl_wifexited, pcntl_wifstopped, pcntl_wifsignaled, pcntl_wexitstatus, pcntl_wtermsig, pcntl_wstopsig, pcntl_signal, pcntl_signal_dispatch, pcntl_get_last_error, pcntl_strerror, pcntl_sigprocmask, pcntl_sigwaitinfo, pcntl_sigtimedwait, pcntl_exec, pcntl_getpriority, pcntl_setpriority

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Cms Version: 1.11.9

Installed Modules:

CMSMailer: 5.2.2
MenuManager: 1.8.6
ModuleManager: 1.5.5
News: 2.14.1
CGSmartImage: 1.15
Search: 1.7.11
TinyMCE: 2.9.12
CGSimpleSmarty: 1.7.1
CGExtensions: 1.38.1
CGBlog: 1.10.3
CGFeedback: 1.6.2
Captcha: 0.4.6
FormBuilder: 0.7.3
Showtime: 3.3
GBFilePicker: 1.3.3


Config Information:

php_memory_limit:
process_whole_template:
max_upload_size: 2000000
url_rewriting: mod_rewrite
page_extension: .html
query_var: page
image_manipulation_prog: GD
auto_alias_content: true
locale:
default_encoding: utf-8
admin_encoding: utf-8
set_names: true


Php Information:

phpversion: 5.4.4-14+deb7u5
md5_function: On (True)
gd_version: 2
tempnam_function: On (True)
magic_quotes_runtime: Off (False)
E_STRICT: 2048
E_DEPRECATED: 8192
memory_limit: 128M
max_execution_time: 30
output_buffering: 4096
safe_mode: Off (False)
file_uploads: On (True)
post_max_size: 8M
upload_max_filesize: 2M
session_save_path: /tmp (1777)
session_use_cookies: On (True)
xml_function: On (True)
xmlreader_class: On (True)


Server Information:

Server Api: apache2handler
Server Db Type: MySQL (mysql)
Server Db Version: 5.5.31
Server Db Grants: Found a "GRANT ALL" statement that appears to be suitable
Server Time Diff: No filesystem time difference found
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Thank you

alias=$gcb_params['size']

The alias parameter allows specifying a named set of parameters.. which you don't describe. i.e: which filter(s) are you using?

That being said... I have repeatedly tested CGSmartImage with transparent PNG's. I have a set of two or three that I regularly test with, and have no difficulty using the standard resize/croptofit etc filters.

sorry, that alias definition refers to a line like this:

filter_roundedcorners=5 filter_resize='w,189,0' quality=85

here's a link to a graphic that renders fine (in 1.14) http://www.rpc.com.au/uploads/images/sk ... raphic.gif. in 1.15 i end up with black background (on test server). not sure if external URL are allowed in CGSmartImage but if so, could you try: and let me know how you went?

I have similar issues with resizing of images with transparent backgrounds. I found the simplest solution was to just avoid resizes hehe... But i did notice that i had more issues with images created in Photoshop than in Gimp. It could be related to how they encode the file perhaps? What do you use to create your images?

I since tried the same image on a different server and it works fine there (with latest CGSmartImage) - hence this in not a cmsms/CGSmartImage problem, but the cause is still a mystery. i use both gimp and photoshop, not sure which one i used on this occasion. i will re-save the file in gimp to see if that makes a difference. thanks for the tip.