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Write support, fixes #602

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wiredfool 2014-04-07 22:23:04 -07:00
parent 2daac27713
commit 327ea209b8
1 changed files with 13 additions and 1 deletions
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14
PIL/PpmImagePlugin.py
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@ -127,6 +127,11 @@ def _save(im, fp, filename):
rawmode, head = "1;I", b"P4"
elif im.mode == "L":
rawmode, head = "L", b"P5"
elif im.mode == "I":
if im.getextrema()[1] < 2**16:
rawmode, head = "I;16B", b"P5"
else:
rawmode, head = "I;32B", b"P5"
elif im.mode == "RGB":
rawmode, head = "RGB", b"P6"
elif im.mode == "RGBA":
@ -134,8 +139,15 @@ def _save(im, fp, filename):
else:
raise IOError("cannot write mode %s as PPM" % im.mode)
fp.write(head + ("\n%d %d\n" % im.size).encode('ascii'))
if head != b"P4":
if head == b"P6":
fp.write(b"255\n")
if head == b"P5":
if rawmode == "I":
fp.write(b"255\n")
elif rawmode == "I;16B":
fp.write(b"65535\n")
elif rawmode == "I;32B":
fp.write(b"2147483648\n")
ImageFile._save(im, fp, [("raw", (0,0)+im.size, 0, (rawmode, 0, 1))])
# ALTERNATIVE: save via builtin debug function