[FIXED] pack compressed texture should not pre mul alpha, because it is read from png, already pre mul alpha.
[FIXED] pack compressed texture should not pre mul alpha, because it is read from png, already pre mul alpha.


Former-commit-id: 14e6a46439c29f28ac6658edeffa6692a51faaba
xzrunner/easyeditor,xzrunner/easyeditor