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Corrected DdsImagePlugin setting info gamma

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This commit is contained in:
Andrew Murray 2019-10-26 17:53:50 +11:00
parent bb1fc75e55
commit d716278d20
4 changed files with 17 additions and 1 deletions
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Tests/images/DXGI_FORMAT_BC7_UNORM_SRGB.dds Normal file
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Tests/images/DXGI_FORMAT_BC7_UNORM_SRGB.png Normal file
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16
Tests/test_file_dds.py
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@ -8,6 +8,7 @@ TEST_FILE_DXT1 = "Tests/images/dxt1-rgb-4bbp-noalpha_MipMaps-1.dds"
TEST_FILE_DXT3 = "Tests/images/dxt3-argb-8bbp-explicitalpha_MipMaps-1.dds"
TEST_FILE_DXT5 = "Tests/images/dxt5-argb-8bbp-interpolatedalpha_MipMaps-1.dds"
TEST_FILE_DX10_BC7 = "Tests/images/bc7-argb-8bpp_MipMaps-1.dds"
TEST_FILE_DX10_BC7_UNORM_SRGB = "Tests/images/DXGI_FORMAT_BC7_UNORM_SRGB.dds"
TEST_FILE_UNCOMPRESSED_RGB = "Tests/images/uncompressed_rgb.dds"
@ -69,6 +70,21 @@ class TestFileDds(PillowTestCase):
self.assert_image_equal(target, im)
def test_dx10_bc7_unorm_srgb(self):
"""Check DX10 unsigned normalized integer images can be opened"""
target = Image.open(TEST_FILE_DX10_BC7_UNORM_SRGB.replace(".dds", ".png"))
im = Image.open(TEST_FILE_DX10_BC7_UNORM_SRGB)
im.load()
self.assertEqual(im.format, "DDS")
self.assertEqual(im.mode, "RGBA")
self.assertEqual(im.size, (16, 16))
self.assertEqual(im.info["gamma"], 1 / 2.2)
self.assert_image_equal(target, im)
def test_unimplemented_dxgi_format(self):
self.assertRaises(
NotImplementedError,

2
src/PIL/DdsImagePlugin.py
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@ -155,7 +155,7 @@ class DdsImageFile(ImageFile.ImageFile):
n = 7
elif dxgi_format == DXGI_FORMAT_BC7_UNORM_SRGB:
self.pixel_format = "BC7"
self.im_info["gamma"] = 1 / 2.2
self.info["gamma"] = 1 / 2.2
n = 7
else:
raise NotImplementedError(