mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-12-25 17:36:18 +03:00
394 lines
10 KiB
Python
394 lines
10 KiB
Python
"""Test DdsImagePlugin"""
|
|
from __future__ import annotations
|
|
from io import BytesIO
|
|
|
|
import pytest
|
|
|
|
from PIL import DdsImagePlugin, Image
|
|
|
|
from .helper import assert_image_equal, assert_image_equal_tofile, hopper
|
|
|
|
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_ATI1 = "Tests/images/ati1.dds"
|
|
TEST_FILE_ATI2 = "Tests/images/ati2.dds"
|
|
TEST_FILE_DX10_BC4_TYPELESS = "Tests/images/bc4_typeless.dds"
|
|
TEST_FILE_DX10_BC4_UNORM = "Tests/images/bc4_unorm.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_BC4U = "Tests/images/bc4u.dds"
|
|
TEST_FILE_BC5S = "Tests/images/bc5s.dds"
|
|
TEST_FILE_BC5U = "Tests/images/bc5u.dds"
|
|
TEST_FILE_BC6H = "Tests/images/bc6h.dds"
|
|
TEST_FILE_BC6HS = "Tests/images/bc6h_sf.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_DX10_R8G8B8A8 = "Tests/images/argb-32bpp_MipMaps-1.dds"
|
|
TEST_FILE_DX10_R8G8B8A8_UNORM_SRGB = "Tests/images/DXGI_FORMAT_R8G8B8A8_UNORM_SRGB.dds"
|
|
TEST_FILE_UNCOMPRESSED_L = "Tests/images/uncompressed_l.dds"
|
|
TEST_FILE_UNCOMPRESSED_L_WITH_ALPHA = "Tests/images/uncompressed_la.dds"
|
|
TEST_FILE_UNCOMPRESSED_RGB = "Tests/images/hopper.dds"
|
|
TEST_FILE_UNCOMPRESSED_RGB_WITH_ALPHA = "Tests/images/uncompressed_rgb.dds"
|
|
|
|
|
|
@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_dxt1_bc1(image_path):
|
|
"""Check DXT1 and BC1 images can be opened"""
|
|
with Image.open(TEST_FILE_DXT1.replace(".dds", ".png")) as target:
|
|
target = target.convert("RGBA")
|
|
with Image.open(image_path) as im:
|
|
im.load()
|
|
|
|
assert im.format == "DDS"
|
|
assert im.mode == "RGBA"
|
|
assert im.size == (256, 256)
|
|
|
|
assert_image_equal(im, target)
|
|
|
|
|
|
def test_sanity_dxt3():
|
|
"""Check DXT3 images can be opened"""
|
|
|
|
with Image.open(TEST_FILE_DXT3) as im:
|
|
im.load()
|
|
|
|
assert im.format == "DDS"
|
|
assert im.mode == "RGBA"
|
|
assert im.size == (256, 256)
|
|
|
|
assert_image_equal_tofile(im, TEST_FILE_DXT3.replace(".dds", ".png"))
|
|
|
|
|
|
def test_sanity_dxt5():
|
|
"""Check DXT5 images can be opened"""
|
|
|
|
with Image.open(TEST_FILE_DXT5) as im:
|
|
im.load()
|
|
|
|
assert im.format == "DDS"
|
|
assert im.mode == "RGBA"
|
|
assert im.size == (256, 256)
|
|
|
|
assert_image_equal_tofile(im, TEST_FILE_DXT5.replace(".dds", ".png"))
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"image_path",
|
|
(
|
|
TEST_FILE_ATI1,
|
|
# hexeditted to use BC4U FourCC
|
|
TEST_FILE_BC4U,
|
|
),
|
|
)
|
|
def test_sanity_ati1_bc4u(image_path):
|
|
"""Check ATI1 and BC4U images can be opened"""
|
|
|
|
with Image.open(image_path) as im:
|
|
im.load()
|
|
|
|
assert im.format == "DDS"
|
|
assert im.mode == "L"
|
|
assert im.size == (64, 64)
|
|
|
|
assert_image_equal_tofile(im, TEST_FILE_ATI1.replace(".dds", ".png"))
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"image_path",
|
|
(
|
|
TEST_FILE_DX10_BC4_UNORM,
|
|
# hexeditted to be typeless
|
|
TEST_FILE_DX10_BC4_TYPELESS,
|
|
),
|
|
)
|
|
def test_dx10_bc4(image_path):
|
|
"""Check DX10 BC4 images can be opened"""
|
|
|
|
with Image.open(image_path) as im:
|
|
im.load()
|
|
|
|
assert im.format == "DDS"
|
|
assert im.mode == "L"
|
|
assert im.size == (64, 64)
|
|
|
|
assert_image_equal_tofile(im, TEST_FILE_DX10_BC4_UNORM.replace(".dds", ".png"))
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"image_path",
|
|
(
|
|
TEST_FILE_ATI2,
|
|
# hexeditted to use BC5U FourCC
|
|
TEST_FILE_BC5U,
|
|
),
|
|
)
|
|
def test_sanity_ati2_bc5u(image_path):
|
|
"""Check ATI2 and BC5U images can be opened"""
|
|
|
|
with Image.open(image_path) as im:
|
|
im.load()
|
|
|
|
assert im.format == "DDS"
|
|
assert im.mode == "RGB"
|
|
assert im.size == (256, 256)
|
|
|
|
assert_image_equal_tofile(im, TEST_FILE_DX10_BC5_UNORM.replace(".dds", ".png"))
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
("image_path", "expected_path"),
|
|
(
|
|
# hexeditted to be typeless
|
|
(TEST_FILE_DX10_BC5_TYPELESS, TEST_FILE_DX10_BC5_UNORM),
|
|
(TEST_FILE_DX10_BC5_UNORM, TEST_FILE_DX10_BC5_UNORM),
|
|
# hexeditted to use DX10 FourCC
|
|
(TEST_FILE_DX10_BC5_SNORM, TEST_FILE_BC5S),
|
|
(TEST_FILE_BC5S, TEST_FILE_BC5S),
|
|
),
|
|
)
|
|
def test_dx10_bc5(image_path, expected_path):
|
|
"""Check DX10 BC5 images can be opened"""
|
|
|
|
with Image.open(image_path) as im:
|
|
im.load()
|
|
|
|
assert im.format == "DDS"
|
|
assert im.mode == "RGB"
|
|
assert im.size == (256, 256)
|
|
|
|
assert_image_equal_tofile(im, expected_path.replace(".dds", ".png"))
|
|
|
|
|
|
@pytest.mark.parametrize("image_path", (TEST_FILE_BC6H, TEST_FILE_BC6HS))
|
|
def test_dx10_bc6h(image_path):
|
|
"""Check DX10 BC6H/BC6HS images can be opened"""
|
|
|
|
with Image.open(image_path) as im:
|
|
im.load()
|
|
|
|
assert im.format == "DDS"
|
|
assert im.mode == "RGB"
|
|
assert im.size == (128, 128)
|
|
|
|
assert_image_equal_tofile(im, image_path.replace(".dds", ".png"))
|
|
|
|
|
|
def test_dx10_bc7():
|
|
"""Check DX10 images can be opened"""
|
|
|
|
with Image.open(TEST_FILE_DX10_BC7) as im:
|
|
im.load()
|
|
|
|
assert im.format == "DDS"
|
|
assert im.mode == "RGBA"
|
|
assert im.size == (256, 256)
|
|
|
|
assert_image_equal_tofile(im, TEST_FILE_DX10_BC7.replace(".dds", ".png"))
|
|
|
|
|
|
def test_dx10_bc7_unorm_srgb():
|
|
"""Check DX10 unsigned normalized integer images can be opened"""
|
|
|
|
with Image.open(TEST_FILE_DX10_BC7_UNORM_SRGB) as im:
|
|
im.load()
|
|
|
|
assert im.format == "DDS"
|
|
assert im.mode == "RGBA"
|
|
assert im.size == (16, 16)
|
|
assert im.info["gamma"] == 1 / 2.2
|
|
|
|
assert_image_equal_tofile(
|
|
im, TEST_FILE_DX10_BC7_UNORM_SRGB.replace(".dds", ".png")
|
|
)
|
|
|
|
|
|
def test_dx10_r8g8b8a8():
|
|
"""Check DX10 images can be opened"""
|
|
|
|
with Image.open(TEST_FILE_DX10_R8G8B8A8) as im:
|
|
im.load()
|
|
|
|
assert im.format == "DDS"
|
|
assert im.mode == "RGBA"
|
|
assert im.size == (256, 256)
|
|
|
|
assert_image_equal_tofile(im, TEST_FILE_DX10_R8G8B8A8.replace(".dds", ".png"))
|
|
|
|
|
|
def test_dx10_r8g8b8a8_unorm_srgb():
|
|
"""Check DX10 unsigned normalized integer images can be opened"""
|
|
|
|
with Image.open(TEST_FILE_DX10_R8G8B8A8_UNORM_SRGB) as im:
|
|
im.load()
|
|
|
|
assert im.format == "DDS"
|
|
assert im.mode == "RGBA"
|
|
assert im.size == (16, 16)
|
|
assert im.info["gamma"] == 1 / 2.2
|
|
|
|
assert_image_equal_tofile(
|
|
im, TEST_FILE_DX10_R8G8B8A8_UNORM_SRGB.replace(".dds", ".png")
|
|
)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
("mode", "size", "test_file"),
|
|
[
|
|
("L", (128, 128), TEST_FILE_UNCOMPRESSED_L),
|
|
("LA", (128, 128), TEST_FILE_UNCOMPRESSED_L_WITH_ALPHA),
|
|
("RGB", (128, 128), TEST_FILE_UNCOMPRESSED_RGB),
|
|
("RGBA", (800, 600), TEST_FILE_UNCOMPRESSED_RGB_WITH_ALPHA),
|
|
],
|
|
)
|
|
def test_uncompressed(mode, size, test_file):
|
|
"""Check uncompressed images can be opened"""
|
|
|
|
with Image.open(test_file) as im:
|
|
assert im.format == "DDS"
|
|
assert im.mode == mode
|
|
assert im.size == size
|
|
|
|
assert_image_equal_tofile(im, test_file.replace(".dds", ".png"))
|
|
|
|
|
|
def test__accept_true():
|
|
"""Check valid prefix"""
|
|
# Arrange
|
|
prefix = b"DDS etc"
|
|
|
|
# Act
|
|
output = DdsImagePlugin._accept(prefix)
|
|
|
|
# Assert
|
|
assert output
|
|
|
|
|
|
def test__accept_false():
|
|
"""Check invalid prefix"""
|
|
# Arrange
|
|
prefix = b"something invalid"
|
|
|
|
# Act
|
|
output = DdsImagePlugin._accept(prefix)
|
|
|
|
# Assert
|
|
assert not output
|
|
|
|
|
|
def test_invalid_file():
|
|
invalid_file = "Tests/images/flower.jpg"
|
|
|
|
with pytest.raises(SyntaxError):
|
|
DdsImagePlugin.DdsImageFile(invalid_file)
|
|
|
|
|
|
def test_short_header():
|
|
"""Check a short header"""
|
|
with open(TEST_FILE_DXT5, "rb") as f:
|
|
img_file = f.read()
|
|
|
|
def short_header():
|
|
with Image.open(BytesIO(img_file[:119])):
|
|
pass # pragma: no cover
|
|
|
|
with pytest.raises(OSError):
|
|
short_header()
|
|
|
|
|
|
def test_short_file():
|
|
"""Check that the appropriate error is thrown for a short file"""
|
|
|
|
with open(TEST_FILE_DXT5, "rb") as f:
|
|
img_file = f.read()
|
|
|
|
def short_file():
|
|
with Image.open(BytesIO(img_file[:-100])) as im:
|
|
im.load()
|
|
|
|
with pytest.raises(OSError):
|
|
short_file()
|
|
|
|
|
|
def test_dxt5_colorblock_alpha_issue_4142():
|
|
"""Check that colorblocks are decoded correctly in DXT5"""
|
|
|
|
with Image.open("Tests/images/dxt5-colorblock-alpha-issue-4142.dds") as im:
|
|
px = im.getpixel((0, 0))
|
|
assert px[0] != 0
|
|
assert px[1] != 0
|
|
assert px[2] != 0
|
|
|
|
px = im.getpixel((1, 0))
|
|
assert px[0] != 0
|
|
assert px[1] != 0
|
|
assert px[2] != 0
|
|
|
|
|
|
def test_palette():
|
|
with Image.open("Tests/images/palette.dds") as im:
|
|
assert_image_equal_tofile(im, "Tests/images/transparent.gif")
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"test_file",
|
|
(
|
|
"Tests/images/unsupported_bitcount_rgb.dds",
|
|
"Tests/images/unsupported_bitcount_luminance.dds",
|
|
),
|
|
)
|
|
def test_unsupported_bitcount(test_file):
|
|
with pytest.raises(OSError):
|
|
with Image.open(test_file):
|
|
pass
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"test_file",
|
|
(
|
|
"Tests/images/unimplemented_dxgi_format.dds",
|
|
"Tests/images/unimplemented_pfflags.dds",
|
|
),
|
|
)
|
|
def test_not_implemented(test_file):
|
|
with pytest.raises(NotImplementedError):
|
|
with Image.open(test_file):
|
|
pass
|
|
|
|
|
|
def test_save_unsupported_mode(tmp_path):
|
|
out = str(tmp_path / "temp.dds")
|
|
im = hopper("HSV")
|
|
with pytest.raises(OSError):
|
|
im.save(out)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
("mode", "test_file"),
|
|
[
|
|
("L", "Tests/images/linear_gradient.png"),
|
|
("LA", "Tests/images/uncompressed_la.png"),
|
|
("RGB", "Tests/images/hopper.png"),
|
|
("RGBA", "Tests/images/pil123rgba.png"),
|
|
],
|
|
)
|
|
def test_save(mode, test_file, tmp_path):
|
|
out = str(tmp_path / "temp.dds")
|
|
with Image.open(test_file) as im:
|
|
assert im.mode == mode
|
|
im.save(out)
|
|
|
|
with Image.open(out) as reloaded:
|
|
assert_image_equal(im, reloaded)
|