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Merge pull request #2221 from jmerdich/master

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Add support for another type of BMP bitfield
This commit is contained in:
wiredfool 2016-11-14 16:13:10 +00:00 committed by GitHub
commit 8c36cd09f7
3 changed files with 17 additions and 2 deletions
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3
PIL/BmpImagePlugin.py
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@ -136,12 +136,13 @@ class BmpImageFile(ImageFile.ImageFile):
# ----------------- Process BMP with Bitfields compression (not palette)
if file_info['compression'] == self.BITFIELDS:
SUPPORTED = {
32: [(0xff0000, 0xff00, 0xff, 0x0), (0xff0000, 0xff00, 0xff, 0xff000000), (0x0, 0x0, 0x0, 0x0)],
32: [(0xff0000, 0xff00, 0xff, 0x0), (0xff0000, 0xff00, 0xff, 0xff000000), (0x0, 0x0, 0x0, 0x0), (0xff000000, 0xff0000, 0xff00, 0x0) ],
24: [(0xff0000, 0xff00, 0xff)],
16: [(0xf800, 0x7e0, 0x1f), (0x7c00, 0x3e0, 0x1f)]
}
MASK_MODES = {
(32, (0xff0000, 0xff00, 0xff, 0x0)): "BGRX",
(32, (0xff000000, 0xff0000, 0xff00, 0x0)): "XBGR",
(32, (0xff0000, 0xff00, 0xff, 0xff000000)): "BGRA",
(32, (0x0, 0x0, 0x0, 0x0)): "BGRA",
(24, (0xff0000, 0xff00, 0xff)): "BGR",

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Tests/images/bmp/q/rgb32bf-xbgr.bmp Normal file
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16
Tests/test_bmp_reference.py
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@ -26,12 +26,26 @@ class TestBmpReference(PillowTestCase):
def test_questionable(self):
""" These shouldn't crash/dos, but it's not well defined that these
are in spec """
supported = [
"pal8os2v2.bmp",
"rgb24prof.bmp",
"pal1p1.bmp",
"pal8offs.bmp",
"rgb24lprof.bmp",
"rgb32fakealpha.bmp",
"rgb24largepal.bmp",
"pal8os2sp.bmp",
"rgb32bf-xbgr.bmp",
]
for f in self.get_files('q'):
try:
im = Image.open(f)
im.load()
if os.path.basename(f) not in supported:
print("Please add %s to the partially supported bmp specs." % f)
except Exception: # as msg:
pass
if os.path.basename(f) in supported:
raise
# print ("Bad Image %s: %s" %(f,msg))
def test_good(self):