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Removed unnecessary casting to enums

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This commit is contained in:
Andrew Murray 2023-10-18 17:32:36 +11:00
parent f59c9ae348
commit 935958c990
1 changed files with 7 additions and 14 deletions
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21
src/PIL/DdsImagePlugin.py
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@ -337,16 +337,14 @@ class DdsImageFile(ImageFile.ImageFile):
raise OSError(msg) raise OSError(msg)
header = io.BytesIO(header_bytes) header = io.BytesIO(header_bytes)
flags_, height, width = struct.unpack("<3I", header.read(12)) flags, height, width = struct.unpack("<3I", header.read(12))
flags = DDSD(flags_)
self._size = (width, height) self._size = (width, height)
pitch, depth, mipmaps = struct.unpack("<3I", header.read(12)) pitch, depth, mipmaps = struct.unpack("<3I", header.read(12))
struct.unpack("<11I", header.read(44)) # reserved struct.unpack("<11I", header.read(44)) # reserved
# pixel format # pixel format
pfsize, pfflags_, fourcc_, bitcount = struct.unpack("<4I", header.read(16)) pfsize, pfflags, fourcc, bitcount = struct.unpack("<4I", header.read(16))
pfflags = DDPF(pfflags_)
masks = struct.unpack("<4I", header.read(16)) masks = struct.unpack("<4I", header.read(16))
if flags & DDSD.CAPS: if flags & DDSD.CAPS:
header.seek(20, io.SEEK_CUR) header.seek(20, io.SEEK_CUR)
@ -368,14 +366,14 @@ class DdsImageFile(ImageFile.ImageFile):
) )
self.tile = [("raw", extents, 0, (rawmode[::-1], 0, 1))] self.tile = [("raw", extents, 0, (rawmode[::-1], 0, 1))]
else: else:
msg = f"Unsupported bitcount {bitcount} for {pfflags_}" msg = f"Unsupported bitcount {bitcount} for {pfflags}"
raise OSError(msg) raise OSError(msg)
elif pfflags & DDPF.ALPHA: elif pfflags & DDPF.ALPHA:
if bitcount == 8: if bitcount == 8:
self._mode = "L" self._mode = "L"
self.tile = [("raw", extents, 0, ("L", 0, 1))] self.tile = [("raw", extents, 0, ("L", 0, 1))]
else: else:
msg = f"Unsupported bitcount {bitcount} for {pfflags_}" msg = f"Unsupported bitcount {bitcount} for {pfflags}"
raise OSError(msg) raise OSError(msg)
elif pfflags & DDPF.LUMINANCE: elif pfflags & DDPF.LUMINANCE:
if bitcount == 8: if bitcount == 8:
@ -385,7 +383,7 @@ class DdsImageFile(ImageFile.ImageFile):
self._mode = "LA" self._mode = "LA"
self.tile = [("raw", extents, 0, ("LA", 0, 1))] self.tile = [("raw", extents, 0, ("LA", 0, 1))]
else: else:
msg = f"Unsupported bitcount {bitcount} for {pfflags_}" msg = f"Unsupported bitcount {bitcount} for {pfflags}"
raise OSError(msg) raise OSError(msg)
elif pfflags & DDPF.PALETTEINDEXED8: elif pfflags & DDPF.PALETTEINDEXED8:
self._mode = "P" self._mode = "P"
@ -393,11 +391,6 @@ class DdsImageFile(ImageFile.ImageFile):
self.tile = [("raw", (0, 0) + self.size, 0, "L")] self.tile = [("raw", (0, 0) + self.size, 0, "L")]
elif pfflags & DDPF.FOURCC: elif pfflags & DDPF.FOURCC:
data_offs = header_size + 4 data_offs = header_size + 4
try:
fourcc = D3DFMT(fourcc_)
except ValueError:
msg = f"Unimplemented pixel format {repr(fourcc_)}"
raise NotImplementedError(msg)
if fourcc == D3DFMT.DXT1: if fourcc == D3DFMT.DXT1:
self._mode = "RGBA" self._mode = "RGBA"
self.pixel_format = "DXT1" self.pixel_format = "DXT1"
@ -491,12 +484,12 @@ class DdsImageFile(ImageFile.ImageFile):
msg = f"Unimplemented DXGI format {dxgi_format}" msg = f"Unimplemented DXGI format {dxgi_format}"
raise NotImplementedError(msg) raise NotImplementedError(msg)
else: else:
msg = f"Unimplemented pixel format {repr(fourcc_)}" msg = f"Unimplemented pixel format {repr(fourcc)}"
raise NotImplementedError(msg) raise NotImplementedError(msg)
self.tile = [tile] self.tile = [tile]
else: else:
msg = f"Unknown pixel format flags {repr(pfflags_)}" msg = f"Unknown pixel format flags {repr(pfflags)}"
raise NotImplementedError(msg) raise NotImplementedError(msg)
def load_seek(self, pos): def load_seek(self, pos):