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Simplified tile creation

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This commit is contained in:
Andrew Murray 2023-10-21 16:03:21 +11:00
parent a54d28a7bc
commit 4a4a1ee6ad
1 changed files with 17 additions and 30 deletions
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47
src/PIL/DdsImagePlugin.py
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@ -394,31 +394,31 @@ class DdsImageFile(ImageFile.ImageFile):
if fourcc == D3DFMT.DXT1:
self._mode = "RGBA"
self.pixel_format = "DXT1"
tile = Image._Tile("bcn", extents, data_offs, (1, self.pixel_format))
n = 1
elif fourcc == D3DFMT.DXT3:
self._mode = "RGBA"
self.pixel_format = "DXT3"
tile = Image._Tile("bcn", extents, data_offs, (2, self.pixel_format))
n = 2
elif fourcc == D3DFMT.DXT5:
self._mode = "RGBA"
self.pixel_format = "DXT5"
tile = Image._Tile("bcn", extents, data_offs, (3, self.pixel_format))
n = 3
elif fourcc == D3DFMT.ATI1 or fourcc == D3DFMT.BC4U:
self._mode = "L"
self.pixel_format = "BC4"
tile = Image._Tile("bcn", extents, data_offs, (4, self.pixel_format))
n = 4
elif fourcc == D3DFMT.BC5S:
self._mode = "RGB"
self.pixel_format = "BC5S"
tile = Image._Tile("bcn", extents, data_offs, (5, self.pixel_format))
n = 5
elif fourcc == D3DFMT.BC5U:
self._mode = "RGB"
self.pixel_format = "BC5U"
tile = Image._Tile("bcn", extents, data_offs, (5, self.pixel_format))
n = 5
elif fourcc == D3DFMT.ATI2:
self._mode = "RGB"
self.pixel_format = "BC5"
tile = Image._Tile("bcn", extents, data_offs, (5, self.pixel_format))
n = 5
elif fourcc == D3DFMT.DX10:
data_offs += 20
# ignoring flags which pertain to volume textures and cubemaps
@ -431,55 +431,42 @@ class DdsImageFile(ImageFile.ImageFile):
):
self._mode = "RGBA"
self.pixel_format = "BC1"
tile = Image._Tile(
"bcn", extents, data_offs, (1, self.pixel_format)
)
n = 1
elif dxgi_format in (DXGI_FORMAT.BC5_TYPELESS, DXGI_FORMAT.BC5_UNORM):
self._mode = "RGB"
self.pixel_format = "BC5"
tile = Image._Tile(
"bcn", extents, data_offs, (5, self.pixel_format)
)
n = 5
elif dxgi_format == DXGI_FORMAT.BC5_SNORM:
self._mode = "RGB"
self.pixel_format = "BC5S"
tile = Image._Tile(
"bcn", extents, data_offs, (5, self.pixel_format)
)
n = 5
elif dxgi_format == DXGI_FORMAT.BC6H_UF16:
self._mode = "RGB"
self.pixel_format = "BC6H"
tile = Image._Tile(
"bcn", extents, data_offs, (6, self.pixel_format)
)
n = 6
elif dxgi_format == DXGI_FORMAT.BC6H_SF16:
self._mode = "RGB"
self.pixel_format = "BC6HS"
tile = Image._Tile(
"bcn", extents, data_offs, (6, self.pixel_format)
)
n = 6
elif dxgi_format in (DXGI_FORMAT.BC7_TYPELESS, DXGI_FORMAT.BC7_UNORM):
self._mode = "RGBA"
self.pixel_format = "BC7"
tile = Image._Tile(
"bcn", extents, data_offs, (7, self.pixel_format)
)
n = 7
elif dxgi_format == DXGI_FORMAT.BC7_UNORM_SRGB:
self._mode = "RGBA"
self.pixel_format = "BC7"
self.info["gamma"] = 1 / 2.2
tile = Image._Tile(
"bcn", extents, data_offs, (7, self.pixel_format)
)
n = 7
elif dxgi_format in (
DXGI_FORMAT.R8G8B8A8_TYPELESS,
DXGI_FORMAT.R8G8B8A8_UNORM,
DXGI_FORMAT.R8G8B8A8_UNORM_SRGB,
):
self._mode = "RGBA"
tile = Image._Tile("raw", extents, 0, ("RGBA", 0, 1))
self.tile = [Image._Tile("raw", extents, 0, ("RGBA", 0, 1))]
if dxgi_format == DXGI_FORMAT.R8G8B8A8_UNORM_SRGB:
self.info["gamma"] = 1 / 2.2
return
else:
msg = f"Unimplemented DXGI format {dxgi_format}"
raise NotImplementedError(msg)
@ -487,7 +474,7 @@ class DdsImageFile(ImageFile.ImageFile):
msg = f"Unimplemented pixel format {repr(fourcc)}"
raise NotImplementedError(msg)
self.tile = [tile]
self.tile = [Image._Tile("bcn", extents, data_offs, (n, self.pixel_format))]
else:
msg = f"Unknown pixel format flags {repr(pfflags)}"
raise NotImplementedError(msg)