mirror of
https://github.com/python-pillow/Pillow.git
synced 2025-10-25 05:01:26 +03:00
287 lines
8.4 KiB
Python
287 lines
8.4 KiB
Python
from __future__ import annotations
|
|
|
|
import os
|
|
from pathlib import Path
|
|
|
|
import pytest
|
|
|
|
from PIL import Image, UnidentifiedImageError
|
|
|
|
from .helper import assert_image_equal, assert_image_equal_tofile, hopper
|
|
|
|
_TGA_DIR = os.path.join("Tests", "images", "tga")
|
|
_TGA_DIR_COMMON = os.path.join(_TGA_DIR, "common")
|
|
|
|
|
|
_ORIGINS = ("tl", "bl")
|
|
|
|
_ORIGIN_TO_ORIENTATION = {"tl": 1, "bl": -1}
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"size_mode",
|
|
(
|
|
("1x1", "L"),
|
|
("200x32", "L"),
|
|
("200x32", "LA"),
|
|
("200x32", "P"),
|
|
("200x32", "RGB"),
|
|
("200x32", "RGBA"),
|
|
),
|
|
)
|
|
@pytest.mark.parametrize("origin", _ORIGINS)
|
|
@pytest.mark.parametrize("rle", (True, False))
|
|
def test_sanity(
|
|
size_mode: tuple[str, str], origin: str, rle: str, tmp_path: Path
|
|
) -> None:
|
|
def roundtrip(original_im: Image.Image) -> None:
|
|
out = tmp_path / "temp.tga"
|
|
|
|
original_im.save(out, rle=rle)
|
|
with Image.open(out) as saved_im:
|
|
if rle:
|
|
assert saved_im.info["compression"] == original_im.info["compression"]
|
|
assert saved_im.info["orientation"] == original_im.info["orientation"]
|
|
if mode == "P":
|
|
assert saved_im.getpalette() == original_im.getpalette()
|
|
|
|
assert_image_equal(saved_im, original_im)
|
|
|
|
size, mode = size_mode
|
|
png_path = os.path.join(_TGA_DIR_COMMON, size + "_" + mode.lower() + ".png")
|
|
with Image.open(png_path) as reference_im:
|
|
assert reference_im.mode == mode
|
|
|
|
path_no_ext = os.path.splitext(png_path)[0]
|
|
tga_path = "{}_{}_{}.tga".format(path_no_ext, origin, "rle" if rle else "raw")
|
|
|
|
with Image.open(tga_path) as original_im:
|
|
assert original_im.format == "TGA"
|
|
assert original_im.get_format_mimetype() == "image/x-tga"
|
|
if rle:
|
|
assert original_im.info["compression"] == "tga_rle"
|
|
assert original_im.info["orientation"] == _ORIGIN_TO_ORIENTATION[origin]
|
|
if mode == "P":
|
|
assert original_im.getpalette() == reference_im.getpalette()
|
|
|
|
assert_image_equal(original_im, reference_im)
|
|
|
|
roundtrip(original_im)
|
|
|
|
|
|
def test_palette_depth_8() -> None:
|
|
with pytest.raises(UnidentifiedImageError):
|
|
Image.open("Tests/images/p_8.tga")
|
|
|
|
|
|
def test_palette_depth_16(tmp_path: Path) -> None:
|
|
with Image.open("Tests/images/p_16.tga") as im:
|
|
assert im.palette is not None
|
|
assert im.palette.mode == "RGBA"
|
|
assert_image_equal_tofile(im.convert("RGBA"), "Tests/images/p_16.png")
|
|
|
|
out = tmp_path / "temp.png"
|
|
im.save(out)
|
|
with Image.open(out) as reloaded:
|
|
assert_image_equal_tofile(reloaded.convert("RGBA"), "Tests/images/p_16.png")
|
|
|
|
|
|
def test_rgba_16() -> None:
|
|
with Image.open("Tests/images/rgba16.tga") as im:
|
|
assert im.mode == "RGBA"
|
|
|
|
assert im.getpixel((0, 0)) == (172, 0, 255, 255)
|
|
assert im.getpixel((1, 0)) == (0, 255, 82, 0)
|
|
|
|
|
|
def test_id_field() -> None:
|
|
# tga file with id field
|
|
test_file = "Tests/images/tga_id_field.tga"
|
|
|
|
# Act
|
|
with Image.open(test_file) as im:
|
|
# Assert
|
|
assert im.size == (100, 100)
|
|
|
|
|
|
def test_id_field_rle() -> None:
|
|
# tga file with id field
|
|
test_file = "Tests/images/rgb32rle.tga"
|
|
|
|
# Act
|
|
with Image.open(test_file) as im:
|
|
# Assert
|
|
assert im.size == (199, 199)
|
|
|
|
|
|
def test_cross_scan_line() -> None:
|
|
with Image.open("Tests/images/cross_scan_line.tga") as im:
|
|
assert_image_equal_tofile(im, "Tests/images/cross_scan_line.png")
|
|
|
|
with Image.open("Tests/images/cross_scan_line_truncated.tga") as im:
|
|
with pytest.raises(OSError):
|
|
im.load()
|
|
|
|
|
|
def test_save(tmp_path: Path) -> None:
|
|
test_file = "Tests/images/tga_id_field.tga"
|
|
with Image.open(test_file) as im:
|
|
out = tmp_path / "temp.tga"
|
|
|
|
# Save
|
|
im.save(out)
|
|
with Image.open(out) as test_im:
|
|
assert test_im.size == (100, 100)
|
|
assert test_im.info["id_section"] == im.info["id_section"]
|
|
|
|
# RGBA save
|
|
im.convert("RGBA").save(out)
|
|
with Image.open(out) as test_im:
|
|
assert test_im.size == (100, 100)
|
|
|
|
|
|
def test_small_palette(tmp_path: Path) -> None:
|
|
im = Image.new("P", (1, 1))
|
|
colors = [0, 0, 0]
|
|
im.putpalette(colors)
|
|
|
|
out = tmp_path / "temp.tga"
|
|
im.save(out)
|
|
|
|
with Image.open(out) as reloaded:
|
|
assert reloaded.getpalette() == colors
|
|
|
|
|
|
def test_missing_palette() -> None:
|
|
with Image.open("Tests/images/dilation4.lut") as im:
|
|
assert im.mode == "L"
|
|
|
|
|
|
def test_save_wrong_mode(tmp_path: Path) -> None:
|
|
im = hopper("PA")
|
|
out = tmp_path / "temp.tga"
|
|
|
|
with pytest.raises(OSError):
|
|
im.save(out)
|
|
|
|
|
|
def test_save_mapdepth() -> None:
|
|
# This image has been manually hexedited from 200x32_p_bl_raw.tga
|
|
# to include an origin
|
|
test_file = "Tests/images/200x32_p_bl_raw_origin.tga"
|
|
with Image.open(test_file) as im:
|
|
assert_image_equal_tofile(im, "Tests/images/tga/common/200x32_p.png")
|
|
|
|
|
|
def test_save_id_section(tmp_path: Path) -> None:
|
|
test_file = "Tests/images/rgb32rle.tga"
|
|
with Image.open(test_file) as im:
|
|
out = tmp_path / "temp.tga"
|
|
|
|
# Check there is no id section
|
|
im.save(out)
|
|
with Image.open(out) as test_im:
|
|
assert "id_section" not in test_im.info
|
|
|
|
# Save with custom id section
|
|
im.save(out, id_section=b"Test content")
|
|
with Image.open(out) as test_im:
|
|
assert test_im.info["id_section"] == b"Test content"
|
|
|
|
# Save with custom id section greater than 255 characters
|
|
id_section = b"Test content" * 25
|
|
with pytest.warns(
|
|
UserWarning, match="id_section has been trimmed to 255 characters"
|
|
):
|
|
im.save(out, id_section=id_section)
|
|
|
|
with Image.open(out) as test_im:
|
|
assert test_im.info["id_section"] == id_section[:255]
|
|
|
|
test_file = "Tests/images/tga_id_field.tga"
|
|
with Image.open(test_file) as im:
|
|
# Save with no id section
|
|
im.save(out, id_section="")
|
|
with Image.open(out) as test_im:
|
|
assert "id_section" not in test_im.info
|
|
|
|
|
|
def test_save_orientation(tmp_path: Path) -> None:
|
|
test_file = "Tests/images/rgb32rle.tga"
|
|
out = tmp_path / "temp.tga"
|
|
with Image.open(test_file) as im:
|
|
assert im.info["orientation"] == -1
|
|
|
|
im.save(out, orientation=1)
|
|
with Image.open(out) as test_im:
|
|
assert test_im.info["orientation"] == 1
|
|
|
|
|
|
def test_horizontal_orientations() -> None:
|
|
# These images have been manually hexedited to have the relevant orientations
|
|
with Image.open("Tests/images/rgb32rle_top_right.tga") as im:
|
|
px = im.load()
|
|
assert px is not None
|
|
value = px[90, 90]
|
|
assert isinstance(value, tuple)
|
|
assert value[:3] == (0, 0, 0)
|
|
|
|
with Image.open("Tests/images/rgb32rle_bottom_right.tga") as im:
|
|
px = im.load()
|
|
assert px is not None
|
|
value = px[90, 90]
|
|
assert isinstance(value, tuple)
|
|
assert value[:3] == (0, 255, 0)
|
|
|
|
|
|
def test_save_rle(tmp_path: Path) -> None:
|
|
test_file = "Tests/images/rgb32rle.tga"
|
|
with Image.open(test_file) as im:
|
|
assert im.info["compression"] == "tga_rle"
|
|
|
|
out = tmp_path / "temp.tga"
|
|
|
|
# Save
|
|
im.save(out)
|
|
with Image.open(out) as test_im:
|
|
assert test_im.size == (199, 199)
|
|
assert test_im.info["compression"] == "tga_rle"
|
|
|
|
# Save without compression
|
|
im.save(out, compression=None)
|
|
with Image.open(out) as test_im:
|
|
assert "compression" not in test_im.info
|
|
|
|
# RGBA save
|
|
im.convert("RGBA").save(out)
|
|
with Image.open(out) as test_im:
|
|
assert test_im.size == (199, 199)
|
|
|
|
test_file = "Tests/images/tga_id_field.tga"
|
|
with Image.open(test_file) as im:
|
|
assert "compression" not in im.info
|
|
|
|
# Save with compression
|
|
im.save(out, compression="tga_rle")
|
|
with Image.open(out) as test_im:
|
|
assert test_im.info["compression"] == "tga_rle"
|
|
|
|
|
|
def test_save_l_transparency(tmp_path: Path) -> None:
|
|
# There are 559 transparent pixels in la.tga.
|
|
num_transparent = 559
|
|
|
|
in_file = "Tests/images/la.tga"
|
|
with Image.open(in_file) as im:
|
|
assert im.mode == "LA"
|
|
assert im.getchannel("A").getcolors()[0][0] == num_transparent
|
|
|
|
out = tmp_path / "temp.tga"
|
|
im.save(out)
|
|
|
|
with Image.open(out) as test_im:
|
|
assert test_im.mode == "LA"
|
|
assert test_im.getchannel("A").getcolors()[0][0] == num_transparent
|
|
|
|
assert_image_equal(im, test_im)
|