def execute(filename, filedata, modifyggpk):
if filedata[0] == ord("*") and filedata[3] >= 0x20:
return None, None, None
filedataOrig = filedata
if filedata[:4] != b'DDS ':
reencodeneeded = True
size = int.from_bytes(filedata[:4], 'little')
filedata = brotli.decompress(filedata[4:])
if len(filedata) != size:
print("Error wrong size after brotli decode %s" % (filename))
return None, None, None
try:
dds = kivy_img_dds.DDSFile(filedata)
tmp = dds.stripratiomipmap(2)
if 1.10 * len(tmp) + 1000 < len(filedataOrig):
# all good (more than 10% saving)
return tmp, None, None
else:
# using original
return None, None, None
except Exception as e:
print("%s %s" % (str(e), filename))
return None, None, None
return None, None, None
def execute(filename, filedata, modifyggpk):
if filedata[0] == ord("*") and filedata[3]>=0x20 :
return None, None, None
reencodeneeded=False
if filedata[:4] != b'DDS ' :
reencodeneeded=True
size = int.from_bytes(filedata[:4], 'little')
filedata = brotli.decompress(filedata[4:])
if len(filedata)!=size :
print("Error wrong size after brotli decode %s" % (filename))
return None, None, None
try :
dds = kivy_img_dds.DDSFile(filedata)
# reduction factor 2
#filedata = dds.stripratiomipmap(2)
# max size allowed = width or height 32
filedata = dds.stripbiggermipmapthan(32)
except Exception as e :
print("%s %s" % (str(e), filename))
return None, None, None
#if reencodeneeded is True :
# filedatal=len(filedata)
# newdecsize = (filedatal).to_bytes(4, byteorder='little', signed=True)
# filedata = newdecsize + brotli.compress(filedata)
return filedata, None, None