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Test BC1_UNORM and BC1_TYPELESS

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This commit is contained in:
Andrew Murray 2023-10-30 19:53:51 +11:00
parent 17be898fc4
commit e3ff5eb8e4
4 changed files with 13 additions and 3 deletions
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Tests/images/bc1.dds Executable file
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Tests/images/bc1_typeless.dds Executable file
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15
Tests/test_file_dds.py
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@ -15,6 +15,8 @@ TEST_FILE_ATI2 = "Tests/images/ati2.dds"
TEST_FILE_DX10_BC5_TYPELESS = "Tests/images/bc5_typeless.dds"
TEST_FILE_DX10_BC5_UNORM = "Tests/images/bc5_unorm.dds"
TEST_FILE_DX10_BC5_SNORM = "Tests/images/bc5_snorm.dds"
TEST_FILE_DX10_BC1 = "Tests/images/bc1.dds"
TEST_FILE_DX10_BC1_TYPELESS = "Tests/images/bc1_typeless.dds"
TEST_FILE_BC5S = "Tests/images/bc5s.dds"
TEST_FILE_BC5U = "Tests/images/bc5u.dds"
TEST_FILE_BC6H = "Tests/images/bc6h.dds"
@ -29,11 +31,20 @@ TEST_FILE_UNCOMPRESSED_RGB = "Tests/images/hopper.dds"
TEST_FILE_UNCOMPRESSED_RGB_WITH_ALPHA = "Tests/images/uncompressed_rgb.dds"
def test_sanity_dxt1():
@pytest.mark.parametrize(
"image_path",
(
TEST_FILE_DXT1,
# hexeditted to use DX10 FourCC
TEST_FILE_DX10_BC1,
TEST_FILE_DX10_BC1_TYPELESS,
),
)
def test_sanity_bc1(image_path):
"""Check DXT1 images can be opened"""
with Image.open(TEST_FILE_DXT1.replace(".dds", ".png")) as target:
target = target.convert("RGBA")
with Image.open(TEST_FILE_DXT1) as im:
with Image.open(image_path) as im:
im.load()
assert im.format == "DDS"

1
src/PIL/DdsImagePlugin.py
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@ -411,7 +411,6 @@ class DdsImageFile(ImageFile.ImageFile):
self.fp.read(16)
if dxgi_format in (
DXGI_FORMAT.BC1_UNORM,
DXGI_FORMAT.BC1_UNORM_SRGB,
DXGI_FORMAT.BC1_TYPELESS,
):
self._mode = "RGBA"