Fix optimizeimg=2 transparency issue not messing with the color type in optipng.

2011-06-02 00:57:43 +02:00
parent 733e816dbc
commit e65b77ac57
1 changed files with 2 additions and 1 deletions
--- a/optimizeimages.py
+++ b/optimizeimages.py
@@ -45,7 +45,8 @@ def optimize_image(imgpath, imgformat, optimizeimg):
            os.rename(imgpath+".tmp", imgpath)

        if optimizeimg >= 2:
-            subprocess.Popen([optipng, imgpath], stderr=subprocess.STDOUT,
+            # the "-nc" it's needed to no broke the transparency of tiles
+            subprocess.Popen([optipng, "-nc", imgpath], stderr=subprocess.STDOUT,
                stdout=subprocess.PIPE).communicate()[0]
            subprocess.Popen([advdef, "-z4",imgpath], stderr=subprocess.STDOUT,
                stdout=subprocess.PIPE).communicate()[0]