small fixes: don't try to convert the alpha channel if it's empty, proper image id
commit52b007390b0edfcfef316d2a5937653c82a047de
authorAndré Wobst <wobsta@users.sourceforge.net>
Mon, 19 May 2008 05:15:36 +0000 (19 05:15 +0000)
committerAndré Wobst <wobsta@users.sourceforge.net>
Mon, 19 May 2008 05:15:36 +0000 (19 05:15 +0000)
tree4590aca25198b1beec69653de642ac784b514f65
parentb47b58e5a0d8296f7c731089526227ad6765e06b
small fixes: don't try to convert the alpha channel if it's empty, proper image id

git-svn-id: https://pyx.svn.sourceforge.net/svnroot/pyx/trunk/pyx@2992 069f4177-920e-0410-937b-c2a4a81bcd90
pyx/bitmap.py