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Move apng tests into test_file_apng.py
This commit is contained in:
Peter Rowlands
Andrew Murray
parent
0b536fb599
commit
0f84fa7707
539
Tests/test_file_apng.py
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539
Tests/test_file_apng.py
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@ -0,0 +1,539 @@
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from PIL import Image, ImageSequence, PngImagePlugin
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import pytest
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from .helper import PillowTestCase
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class TestFilePng(PillowTestCase):
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# APNG browser support tests and fixtures via:
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# https://philip.html5.org/tests/apng/tests.html
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# (referenced from https://wiki.mozilla.org/APNG_Specification)
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def test_apng_basic(self):
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im = Image.open("Tests/images/apng/single_frame.png")
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self.assertTrue(im.is_animated)
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self.assertEqual(im.get_format_mimetype(), "image/apng")
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self.assertIsNone(im.info.get("default_image"))
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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im = Image.open("Tests/images/apng/single_frame_default.png")
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self.assertTrue(im.is_animated)
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self.assertEqual(im.get_format_mimetype(), "image/apng")
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self.assertTrue(im.info.get("default_image"))
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self.assertEqual(im.getpixel((0, 0)), (255, 0, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (255, 0, 0, 255))
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im.seek(1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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# test out of bounds seek
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with self.assertRaises(EOFError):
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im.seek(2)
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# test rewind support
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im.seek(0)
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self.assertEqual(im.getpixel((0, 0)), (255, 0, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (255, 0, 0, 255))
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im.seek(1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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def test_apng_fdat(self):
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im = Image.open("Tests/images/apng/split_fdat.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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im = Image.open("Tests/images/apng/split_fdat_zero_chunk.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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def test_apng_dispose(self):
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im = Image.open("Tests/images/apng/dispose_op_none.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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im = Image.open("Tests/images/apng/dispose_op_background.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
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self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
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im = Image.open("Tests/images/apng/dispose_op_background_final.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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im = Image.open("Tests/images/apng/dispose_op_previous.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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im = Image.open("Tests/images/apng/dispose_op_previous_final.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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im = Image.open("Tests/images/apng/dispose_op_previous_first.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
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self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
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def test_apng_dispose_region(self):
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im = Image.open("Tests/images/apng/dispose_op_none_region.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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im = Image.open("Tests/images/apng/dispose_op_background_before_region.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
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self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
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im = Image.open("Tests/images/apng/dispose_op_background_region.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 0, 255, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
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im = Image.open("Tests/images/apng/dispose_op_previous_region.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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def test_apng_blend(self):
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im = Image.open("Tests/images/apng/blend_op_source_solid.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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im = Image.open("Tests/images/apng/blend_op_source_transparent.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
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self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
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im = Image.open("Tests/images/apng/blend_op_source_near_transparent.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 2))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 2))
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im = Image.open("Tests/images/apng/blend_op_over.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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im = Image.open("Tests/images/apng/blend_op_over_near_transparent.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 97))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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def test_apng_chunk_order(self):
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im = Image.open("Tests/images/apng/fctl_actl.png")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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def test_apng_delay(self):
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im = Image.open("Tests/images/apng/delay.png")
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im.seek(1)
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self.assertEqual(im.info.get("duration"), 500.0)
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im.seek(2)
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self.assertEqual(im.info.get("duration"), 1000.0)
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im.seek(3)
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self.assertEqual(im.info.get("duration"), 500.0)
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im.seek(4)
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self.assertEqual(im.info.get("duration"), 1000.0)
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im = Image.open("Tests/images/apng/delay_round.png")
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im.seek(1)
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self.assertEqual(im.info.get("duration"), 500.0)
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im.seek(2)
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self.assertEqual(im.info.get("duration"), 1000.0)
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im = Image.open("Tests/images/apng/delay_short_max.png")
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im.seek(1)
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self.assertEqual(im.info.get("duration"), 500.0)
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im.seek(2)
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self.assertEqual(im.info.get("duration"), 1000.0)
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im = Image.open("Tests/images/apng/delay_zero_denom.png")
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im.seek(1)
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self.assertEqual(im.info.get("duration"), 500.0)
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im.seek(2)
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self.assertEqual(im.info.get("duration"), 1000.0)
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im = Image.open("Tests/images/apng/delay_zero_numer.png")
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im.seek(1)
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self.assertEqual(im.info.get("duration"), 0.0)
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im.seek(2)
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self.assertEqual(im.info.get("duration"), 0.0)
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im.seek(3)
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self.assertEqual(im.info.get("duration"), 500.0)
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im.seek(4)
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self.assertEqual(im.info.get("duration"), 1000.0)
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def test_apng_num_plays(self):
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im = Image.open("Tests/images/apng/num_plays.png")
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self.assertEqual(im.info.get("loop"), 0)
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im = Image.open("Tests/images/apng/num_plays_1.png")
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self.assertEqual(im.info.get("loop"), 1)
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def test_apng_mode(self):
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im = Image.open("Tests/images/apng/mode_16bit.png")
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self.assertEqual(im.mode, "RGBA")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (0, 0, 128, 191))
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self.assertEqual(im.getpixel((64, 32)), (0, 0, 128, 191))
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im = Image.open("Tests/images/apng/mode_greyscale.png")
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self.assertEqual(im.mode, "L")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), 128)
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self.assertEqual(im.getpixel((64, 32)), 255)
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im = Image.open("Tests/images/apng/mode_greyscale_alpha.png")
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self.assertEqual(im.mode, "LA")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (128, 191))
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self.assertEqual(im.getpixel((64, 32)), (128, 191))
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im = Image.open("Tests/images/apng/mode_palette.png")
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self.assertEqual(im.mode, "P")
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im.seek(im.n_frames - 1)
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im = im.convert("RGB")
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0))
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im = Image.open("Tests/images/apng/mode_palette_alpha.png")
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self.assertEqual(im.mode, "P")
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im.seek(im.n_frames - 1)
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im = im.convert("RGBA")
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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im = Image.open("Tests/images/apng/mode_palette_1bit_alpha.png")
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self.assertEqual(im.mode, "P")
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im.seek(im.n_frames - 1)
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im = im.convert("RGBA")
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self.assertEqual(im.getpixel((0, 0)), (0, 0, 255, 128))
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self.assertEqual(im.getpixel((64, 32)), (0, 0, 255, 128))
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def test_apng_chunk_errors(self):
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im = Image.open("Tests/images/apng/chunk_no_actl.png")
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self.assertFalse(im.is_animated)
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def open():
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im = Image.open("Tests/images/apng/chunk_multi_actl.png")
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im.load()
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pytest.warns(UserWarning, open)
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self.assertFalse(im.is_animated)
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im = Image.open("Tests/images/apng/chunk_actl_after_idat.png")
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self.assertFalse(im.is_animated)
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im = Image.open("Tests/images/apng/chunk_no_fctl.png")
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with self.assertRaises(SyntaxError):
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im.seek(im.n_frames - 1)
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im = Image.open("Tests/images/apng/chunk_repeat_fctl.png")
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with self.assertRaises(SyntaxError):
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im.seek(im.n_frames - 1)
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im = Image.open("Tests/images/apng/chunk_no_fdat.png")
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with self.assertRaises(SyntaxError):
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im.seek(im.n_frames - 1)
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def test_apng_syntax_errors(self):
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def open():
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im = Image.open("Tests/images/apng/syntax_num_frames_zero.png")
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self.assertFalse(im.is_animated)
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with self.assertRaises(OSError):
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im.load()
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pytest.warns(UserWarning, open)
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def open():
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im = Image.open("Tests/images/apng/syntax_num_frames_zero_default.png")
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self.assertFalse(im.is_animated)
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im.load()
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pytest.warns(UserWarning, open)
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# we can handle this case gracefully
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exception = None
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im = Image.open("Tests/images/apng/syntax_num_frames_low.png")
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try:
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im.seek(im.n_frames - 1)
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except Exception as e:
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exception = e
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self.assertIsNone(exception)
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with self.assertRaises(SyntaxError):
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im = Image.open("Tests/images/apng/syntax_num_frames_high.png")
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im.seek(im.n_frames - 1)
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im.load()
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def open():
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im = Image.open("Tests/images/apng/syntax_num_frames_invalid.png")
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self.assertFalse(im.is_animated)
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im.load()
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pytest.warns(UserWarning, open)
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def test_apng_sequence_errors(self):
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test_files = [
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"sequence_start.png",
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"sequence_gap.png",
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"sequence_repeat.png",
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"sequence_repeat_chunk.png",
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"sequence_reorder.png",
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"sequence_reorder_chunk.png",
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"sequence_fdat_fctl.png",
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]
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for f in test_files:
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with self.assertRaises(SyntaxError):
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im = Image.open("Tests/images/apng/{0}".format(f))
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im.seek(im.n_frames - 1)
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im.load()
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def test_apng_save(self):
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im = Image.open("Tests/images/apng/single_frame.png")
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test_file = self.tempfile("temp.png")
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im.save(test_file, save_all=True)
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with Image.open(test_file) as im:
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im.load()
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self.assertTrue(im.is_animated)
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self.assertEqual(im.get_format_mimetype(), "image/apng")
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self.assertIsNone(im.info.get("default_image"))
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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im = Image.open("Tests/images/apng/single_frame_default.png")
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frames = []
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for im in ImageSequence.Iterator(im):
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frames.append(im.copy())
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frames[0].save(
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test_file, save_all=True, default_image=True, append_images=frames[1:]
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)
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with Image.open(test_file) as im:
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im.load()
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self.assertTrue(im.is_animated)
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self.assertEqual(im.get_format_mimetype(), "image/apng")
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self.assertTrue(im.info.get("default_image"))
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im.seek(1)
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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def test_apng_save_split_fdat(self):
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# test to make sure we do not generate sequence errors when writing
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# frames with image data spanning multiple fdAT chunks (in this case
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# both the default image and first animation frame will span multiple
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# data chunks)
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test_file = self.tempfile("temp.png")
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with Image.open("Tests/images/old-style-jpeg-compression.png") as im:
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frames = [im.copy(), Image.new("RGBA", im.size, (255, 0, 0, 255))]
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im.save(
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test_file, save_all=True, default_image=True, append_images=frames,
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)
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with Image.open(test_file) as im:
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exception = None
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try:
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im.seek(im.n_frames - 1)
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im.load()
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except Exception as e:
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exception = e
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self.assertIsNone(exception)
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def test_apng_save_duration_loop(self):
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test_file = self.tempfile("temp.png")
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im = Image.open("Tests/images/apng/delay.png")
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frames = []
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durations = []
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loop = im.info.get("loop")
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default_image = im.info.get("default_image")
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for i, im in enumerate(ImageSequence.Iterator(im)):
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frames.append(im.copy())
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if i != 0 or not default_image:
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durations.append(im.info.get("duration", 0))
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frames[0].save(
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test_file,
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save_all=True,
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default_image=default_image,
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append_images=frames[1:],
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duration=durations,
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loop=loop,
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)
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with Image.open(test_file) as im:
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im.load()
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self.assertEqual(im.info.get("loop"), loop)
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im.seek(1)
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self.assertEqual(im.info.get("duration"), 500.0)
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im.seek(2)
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self.assertEqual(im.info.get("duration"), 1000.0)
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im.seek(3)
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self.assertEqual(im.info.get("duration"), 500.0)
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im.seek(4)
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self.assertEqual(im.info.get("duration"), 1000.0)
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# test removal of duplicated frames
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frame = Image.new("RGBA", (128, 64), (255, 0, 0, 255))
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frame.save(test_file, save_all=True, append_images=[frame], duration=[500, 250])
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with Image.open(test_file) as im:
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im.load()
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self.assertEqual(im.n_frames, 1)
|
||||
self.assertEqual(im.info.get("duration"), 750)
|
||||
|
||||
def test_apng_save_disposal(self):
|
||||
test_file = self.tempfile("temp.png")
|
||||
size = (128, 64)
|
||||
red = Image.new("RGBA", size, (255, 0, 0, 255))
|
||||
green = Image.new("RGBA", size, (0, 255, 0, 255))
|
||||
transparent = Image.new("RGBA", size, (0, 0, 0, 0))
|
||||
|
||||
# test APNG_DISPOSE_OP_NONE
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[green, transparent],
|
||||
disposal=PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
blend=PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(2)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
# test APNG_DISPOSE_OP_BACKGROUND
|
||||
disposal = [
|
||||
PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
PngImagePlugin.APNG_DISPOSE_OP_BACKGROUND,
|
||||
PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
]
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[red, transparent],
|
||||
disposal=disposal,
|
||||
blend=PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(2)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
|
||||
|
||||
disposal = [
|
||||
PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
PngImagePlugin.APNG_DISPOSE_OP_BACKGROUND,
|
||||
]
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[green],
|
||||
disposal=disposal,
|
||||
blend=PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
# test APNG_DISPOSE_OP_PREVIOUS
|
||||
disposal = [
|
||||
PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
PngImagePlugin.APNG_DISPOSE_OP_PREVIOUS,
|
||||
PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
]
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[green, red, transparent],
|
||||
default_image=True,
|
||||
disposal=disposal,
|
||||
blend=PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(3)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
disposal = [
|
||||
PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
PngImagePlugin.APNG_DISPOSE_OP_PREVIOUS,
|
||||
]
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[green],
|
||||
disposal=disposal,
|
||||
blend=PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
def test_apng_save_blend(self):
|
||||
test_file = self.tempfile("temp.png")
|
||||
size = (128, 64)
|
||||
red = Image.new("RGBA", size, (255, 0, 0, 255))
|
||||
green = Image.new("RGBA", size, (0, 255, 0, 255))
|
||||
transparent = Image.new("RGBA", size, (0, 0, 0, 0))
|
||||
|
||||
# test APNG_BLEND_OP_SOURCE on solid color
|
||||
blend = [
|
||||
PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
PngImagePlugin.APNG_BLEND_OP_SOURCE,
|
||||
]
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[red, green],
|
||||
default_image=True,
|
||||
disposal=PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
blend=blend,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(2)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
# test APNG_BLEND_OP_SOURCE on transparent color
|
||||
blend = [
|
||||
PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
PngImagePlugin.APNG_BLEND_OP_SOURCE,
|
||||
]
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[red, transparent],
|
||||
default_image=True,
|
||||
disposal=PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
blend=blend,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(2)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
|
||||
|
||||
# test APNG_BLEND_OP_OVER
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[green, transparent],
|
||||
default_image=True,
|
||||
disposal=PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
blend=PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
im.seek(2)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
|
@ -3,7 +3,7 @@ import zlib
|
|||
from io import BytesIO
|
||||
|
||||
import pytest
|
||||
from PIL import Image, ImageFile, ImageSequence, PngImagePlugin
|
||||
from PIL import Image, ImageFile, PngImagePlugin
|
||||
|
||||
from .helper import (
|
||||
PillowLeakTestCase,
|
||||
|
|
@ -625,541 +625,6 @@ class TestFilePng(PillowTestCase):
|
|||
with Image.open(test_file) as reloaded:
|
||||
assert reloaded.info["exif"] == b"Exif\x00\x00exifstring"
|
||||
|
||||
# APNG browser support tests and fixtures via:
|
||||
# https://philip.html5.org/tests/apng/tests.html
|
||||
# (referenced from https://wiki.mozilla.org/APNG_Specification)
|
||||
def test_apng_basic(self):
|
||||
im = Image.open("Tests/images/apng/single_frame.png")
|
||||
self.assertTrue(im.is_animated)
|
||||
self.assertEqual(im.get_format_mimetype(), "image/apng")
|
||||
self.assertIsNone(im.info.get("default_image"))
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
im = Image.open("Tests/images/apng/single_frame_default.png")
|
||||
self.assertTrue(im.is_animated)
|
||||
self.assertEqual(im.get_format_mimetype(), "image/apng")
|
||||
self.assertTrue(im.info.get("default_image"))
|
||||
self.assertEqual(im.getpixel((0, 0)), (255, 0, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (255, 0, 0, 255))
|
||||
im.seek(1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
# test out of bounds seek
|
||||
with self.assertRaises(EOFError):
|
||||
im.seek(2)
|
||||
|
||||
# test rewind support
|
||||
im.seek(0)
|
||||
self.assertEqual(im.getpixel((0, 0)), (255, 0, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (255, 0, 0, 255))
|
||||
im.seek(1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
def test_apng_fdat(self):
|
||||
im = Image.open("Tests/images/apng/split_fdat.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
im = Image.open("Tests/images/apng/split_fdat_zero_chunk.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
def test_apng_dispose(self):
|
||||
im = Image.open("Tests/images/apng/dispose_op_none.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
im = Image.open("Tests/images/apng/dispose_op_background.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
|
||||
|
||||
im = Image.open("Tests/images/apng/dispose_op_background_final.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
im = Image.open("Tests/images/apng/dispose_op_previous.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
im = Image.open("Tests/images/apng/dispose_op_previous_final.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
im = Image.open("Tests/images/apng/dispose_op_previous_first.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
|
||||
|
||||
def test_apng_dispose_region(self):
|
||||
im = Image.open("Tests/images/apng/dispose_op_none_region.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
im = Image.open("Tests/images/apng/dispose_op_background_before_region.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
|
||||
|
||||
im = Image.open("Tests/images/apng/dispose_op_background_region.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 0, 255, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
|
||||
|
||||
im = Image.open("Tests/images/apng/dispose_op_previous_region.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
def test_apng_blend(self):
|
||||
im = Image.open("Tests/images/apng/blend_op_source_solid.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
im = Image.open("Tests/images/apng/blend_op_source_transparent.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
|
||||
|
||||
im = Image.open("Tests/images/apng/blend_op_source_near_transparent.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 2))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 2))
|
||||
|
||||
im = Image.open("Tests/images/apng/blend_op_over.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
im = Image.open("Tests/images/apng/blend_op_over_near_transparent.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 97))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
def test_apng_chunk_order(self):
|
||||
im = Image.open("Tests/images/apng/fctl_actl.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
def test_apng_delay(self):
|
||||
im = Image.open("Tests/images/apng/delay.png")
|
||||
im.seek(1)
|
||||
self.assertEqual(im.info.get("duration"), 500.0)
|
||||
im.seek(2)
|
||||
self.assertEqual(im.info.get("duration"), 1000.0)
|
||||
im.seek(3)
|
||||
self.assertEqual(im.info.get("duration"), 500.0)
|
||||
im.seek(4)
|
||||
self.assertEqual(im.info.get("duration"), 1000.0)
|
||||
|
||||
im = Image.open("Tests/images/apng/delay_round.png")
|
||||
im.seek(1)
|
||||
self.assertEqual(im.info.get("duration"), 500.0)
|
||||
im.seek(2)
|
||||
self.assertEqual(im.info.get("duration"), 1000.0)
|
||||
|
||||
im = Image.open("Tests/images/apng/delay_short_max.png")
|
||||
im.seek(1)
|
||||
self.assertEqual(im.info.get("duration"), 500.0)
|
||||
im.seek(2)
|
||||
self.assertEqual(im.info.get("duration"), 1000.0)
|
||||
|
||||
im = Image.open("Tests/images/apng/delay_zero_denom.png")
|
||||
im.seek(1)
|
||||
self.assertEqual(im.info.get("duration"), 500.0)
|
||||
im.seek(2)
|
||||
self.assertEqual(im.info.get("duration"), 1000.0)
|
||||
|
||||
im = Image.open("Tests/images/apng/delay_zero_numer.png")
|
||||
im.seek(1)
|
||||
self.assertEqual(im.info.get("duration"), 0.0)
|
||||
im.seek(2)
|
||||
self.assertEqual(im.info.get("duration"), 0.0)
|
||||
im.seek(3)
|
||||
self.assertEqual(im.info.get("duration"), 500.0)
|
||||
im.seek(4)
|
||||
self.assertEqual(im.info.get("duration"), 1000.0)
|
||||
|
||||
def test_apng_num_plays(self):
|
||||
im = Image.open("Tests/images/apng/num_plays.png")
|
||||
self.assertEqual(im.info.get("loop"), 0)
|
||||
|
||||
im = Image.open("Tests/images/apng/num_plays_1.png")
|
||||
self.assertEqual(im.info.get("loop"), 1)
|
||||
|
||||
def test_apng_mode(self):
|
||||
im = Image.open("Tests/images/apng/mode_16bit.png")
|
||||
self.assertEqual(im.mode, "RGBA")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 0, 128, 191))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 0, 128, 191))
|
||||
|
||||
im = Image.open("Tests/images/apng/mode_greyscale.png")
|
||||
self.assertEqual(im.mode, "L")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), 128)
|
||||
self.assertEqual(im.getpixel((64, 32)), 255)
|
||||
|
||||
im = Image.open("Tests/images/apng/mode_greyscale_alpha.png")
|
||||
self.assertEqual(im.mode, "LA")
|
||||
im.seek(im.n_frames - 1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (128, 191))
|
||||
self.assertEqual(im.getpixel((64, 32)), (128, 191))
|
||||
|
||||
im = Image.open("Tests/images/apng/mode_palette.png")
|
||||
self.assertEqual(im.mode, "P")
|
||||
im.seek(im.n_frames - 1)
|
||||
im = im.convert("RGB")
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0))
|
||||
|
||||
im = Image.open("Tests/images/apng/mode_palette_alpha.png")
|
||||
self.assertEqual(im.mode, "P")
|
||||
im.seek(im.n_frames - 1)
|
||||
im = im.convert("RGBA")
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
im = Image.open("Tests/images/apng/mode_palette_1bit_alpha.png")
|
||||
self.assertEqual(im.mode, "P")
|
||||
im.seek(im.n_frames - 1)
|
||||
im = im.convert("RGBA")
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 0, 255, 128))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 0, 255, 128))
|
||||
|
||||
def test_apng_chunk_errors(self):
|
||||
im = Image.open("Tests/images/apng/chunk_no_actl.png")
|
||||
self.assertFalse(im.is_animated)
|
||||
|
||||
def open():
|
||||
im = Image.open("Tests/images/apng/chunk_multi_actl.png")
|
||||
im.load()
|
||||
|
||||
pytest.warns(UserWarning, open)
|
||||
self.assertFalse(im.is_animated)
|
||||
|
||||
im = Image.open("Tests/images/apng/chunk_actl_after_idat.png")
|
||||
self.assertFalse(im.is_animated)
|
||||
|
||||
im = Image.open("Tests/images/apng/chunk_no_fctl.png")
|
||||
with self.assertRaises(SyntaxError):
|
||||
im.seek(im.n_frames - 1)
|
||||
|
||||
im = Image.open("Tests/images/apng/chunk_repeat_fctl.png")
|
||||
with self.assertRaises(SyntaxError):
|
||||
im.seek(im.n_frames - 1)
|
||||
|
||||
im = Image.open("Tests/images/apng/chunk_no_fdat.png")
|
||||
with self.assertRaises(SyntaxError):
|
||||
im.seek(im.n_frames - 1)
|
||||
|
||||
def test_apng_syntax_errors(self):
|
||||
def open():
|
||||
im = Image.open("Tests/images/apng/syntax_num_frames_zero.png")
|
||||
self.assertFalse(im.is_animated)
|
||||
with self.assertRaises(OSError):
|
||||
im.load()
|
||||
|
||||
pytest.warns(UserWarning, open)
|
||||
|
||||
def open():
|
||||
im = Image.open("Tests/images/apng/syntax_num_frames_zero_default.png")
|
||||
self.assertFalse(im.is_animated)
|
||||
im.load()
|
||||
|
||||
pytest.warns(UserWarning, open)
|
||||
|
||||
# we can handle this case gracefully
|
||||
exception = None
|
||||
im = Image.open("Tests/images/apng/syntax_num_frames_low.png")
|
||||
try:
|
||||
im.seek(im.n_frames - 1)
|
||||
except Exception as e:
|
||||
exception = e
|
||||
self.assertIsNone(exception)
|
||||
|
||||
with self.assertRaises(SyntaxError):
|
||||
im = Image.open("Tests/images/apng/syntax_num_frames_high.png")
|
||||
im.seek(im.n_frames - 1)
|
||||
im.load()
|
||||
|
||||
def open():
|
||||
im = Image.open("Tests/images/apng/syntax_num_frames_invalid.png")
|
||||
self.assertFalse(im.is_animated)
|
||||
im.load()
|
||||
|
||||
pytest.warns(UserWarning, open)
|
||||
|
||||
def test_apng_sequence_errors(self):
|
||||
test_files = [
|
||||
"sequence_start.png",
|
||||
"sequence_gap.png",
|
||||
"sequence_repeat.png",
|
||||
"sequence_repeat_chunk.png",
|
||||
"sequence_reorder.png",
|
||||
"sequence_reorder_chunk.png",
|
||||
"sequence_fdat_fctl.png",
|
||||
]
|
||||
for f in test_files:
|
||||
with self.assertRaises(SyntaxError):
|
||||
im = Image.open("Tests/images/apng/{0}".format(f))
|
||||
im.seek(im.n_frames - 1)
|
||||
im.load()
|
||||
|
||||
def test_apng_save(self):
|
||||
im = Image.open("Tests/images/apng/single_frame.png")
|
||||
test_file = self.tempfile("temp.png")
|
||||
im.save(test_file, save_all=True)
|
||||
|
||||
with Image.open(test_file) as im:
|
||||
im.load()
|
||||
self.assertTrue(im.is_animated)
|
||||
self.assertEqual(im.get_format_mimetype(), "image/apng")
|
||||
self.assertIsNone(im.info.get("default_image"))
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
im = Image.open("Tests/images/apng/single_frame_default.png")
|
||||
frames = []
|
||||
for im in ImageSequence.Iterator(im):
|
||||
frames.append(im.copy())
|
||||
frames[0].save(
|
||||
test_file, save_all=True, default_image=True, append_images=frames[1:]
|
||||
)
|
||||
|
||||
with Image.open(test_file) as im:
|
||||
im.load()
|
||||
self.assertTrue(im.is_animated)
|
||||
self.assertEqual(im.get_format_mimetype(), "image/apng")
|
||||
self.assertTrue(im.info.get("default_image"))
|
||||
im.seek(1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
def test_apng_save_split_fdat(self):
|
||||
# test to make sure we do not generate sequence errors when writing
|
||||
# frames with image data spanning multiple fdAT chunks (in this case
|
||||
# both the default image and first animation frame will span multiple
|
||||
# data chunks)
|
||||
test_file = self.tempfile("temp.png")
|
||||
with Image.open("Tests/images/old-style-jpeg-compression.png") as im:
|
||||
frames = [im.copy(), Image.new("RGBA", im.size, (255, 0, 0, 255))]
|
||||
im.save(
|
||||
test_file, save_all=True, default_image=True, append_images=frames,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
exception = None
|
||||
try:
|
||||
im.seek(im.n_frames - 1)
|
||||
im.load()
|
||||
except Exception as e:
|
||||
exception = e
|
||||
self.assertIsNone(exception)
|
||||
|
||||
def test_apng_save_duration_loop(self):
|
||||
test_file = self.tempfile("temp.png")
|
||||
im = Image.open("Tests/images/apng/delay.png")
|
||||
frames = []
|
||||
durations = []
|
||||
loop = im.info.get("loop")
|
||||
default_image = im.info.get("default_image")
|
||||
for i, im in enumerate(ImageSequence.Iterator(im)):
|
||||
frames.append(im.copy())
|
||||
if i != 0 or not default_image:
|
||||
durations.append(im.info.get("duration", 0))
|
||||
frames[0].save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
default_image=default_image,
|
||||
append_images=frames[1:],
|
||||
duration=durations,
|
||||
loop=loop,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.load()
|
||||
self.assertEqual(im.info.get("loop"), loop)
|
||||
im.seek(1)
|
||||
self.assertEqual(im.info.get("duration"), 500.0)
|
||||
im.seek(2)
|
||||
self.assertEqual(im.info.get("duration"), 1000.0)
|
||||
im.seek(3)
|
||||
self.assertEqual(im.info.get("duration"), 500.0)
|
||||
im.seek(4)
|
||||
self.assertEqual(im.info.get("duration"), 1000.0)
|
||||
|
||||
# test removal of duplicated frames
|
||||
frame = Image.new("RGBA", (128, 64), (255, 0, 0, 255))
|
||||
frame.save(test_file, save_all=True, append_images=[frame], duration=[500, 250])
|
||||
with Image.open(test_file) as im:
|
||||
im.load()
|
||||
self.assertEqual(im.n_frames, 1)
|
||||
self.assertEqual(im.info.get("duration"), 750)
|
||||
|
||||
# This also tests reading unknown PNG chunks (fcTL and fdAT) in load_end
|
||||
with Image.open("Tests/images/iss634.webp") as expected:
|
||||
assert_image_similar(im, expected, 0.23)
|
||||
|
||||
def test_apng_save_disposal(self):
|
||||
test_file = self.tempfile("temp.png")
|
||||
size = (128, 64)
|
||||
red = Image.new("RGBA", size, (255, 0, 0, 255))
|
||||
green = Image.new("RGBA", size, (0, 255, 0, 255))
|
||||
transparent = Image.new("RGBA", size, (0, 0, 0, 0))
|
||||
|
||||
# test APNG_DISPOSE_OP_NONE
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[green, transparent],
|
||||
disposal=PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
blend=PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(2)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
# test APNG_DISPOSE_OP_BACKGROUND
|
||||
disposal = [
|
||||
PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
PngImagePlugin.APNG_DISPOSE_OP_BACKGROUND,
|
||||
PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
]
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[red, transparent],
|
||||
disposal=disposal,
|
||||
blend=PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(2)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
|
||||
|
||||
disposal = [
|
||||
PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
PngImagePlugin.APNG_DISPOSE_OP_BACKGROUND,
|
||||
]
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[green],
|
||||
disposal=disposal,
|
||||
blend=PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
# test APNG_DISPOSE_OP_PREVIOUS
|
||||
disposal = [
|
||||
PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
PngImagePlugin.APNG_DISPOSE_OP_PREVIOUS,
|
||||
PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
]
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[green, red, transparent],
|
||||
default_image=True,
|
||||
disposal=disposal,
|
||||
blend=PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(3)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
disposal = [
|
||||
PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
PngImagePlugin.APNG_DISPOSE_OP_PREVIOUS,
|
||||
]
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[green],
|
||||
disposal=disposal,
|
||||
blend=PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
def test_apng_save_blend(self):
|
||||
test_file = self.tempfile("temp.png")
|
||||
size = (128, 64)
|
||||
red = Image.new("RGBA", size, (255, 0, 0, 255))
|
||||
green = Image.new("RGBA", size, (0, 255, 0, 255))
|
||||
transparent = Image.new("RGBA", size, (0, 0, 0, 0))
|
||||
|
||||
# test APNG_BLEND_OP_SOURCE on solid color
|
||||
blend = [
|
||||
PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
PngImagePlugin.APNG_BLEND_OP_SOURCE,
|
||||
]
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[red, green],
|
||||
default_image=True,
|
||||
disposal=PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
blend=blend,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(2)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
# test APNG_BLEND_OP_SOURCE on transparent color
|
||||
blend = [
|
||||
PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
PngImagePlugin.APNG_BLEND_OP_SOURCE,
|
||||
]
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[red, transparent],
|
||||
default_image=True,
|
||||
disposal=PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
blend=blend,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(2)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
|
||||
|
||||
# test APNG_BLEND_OP_OVER
|
||||
red.save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
append_images=[green, transparent],
|
||||
default_image=True,
|
||||
disposal=PngImagePlugin.APNG_DISPOSE_OP_NONE,
|
||||
blend=PngImagePlugin.APNG_BLEND_OP_OVER,
|
||||
)
|
||||
with Image.open(test_file) as im:
|
||||
im.seek(1)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
im.seek(2)
|
||||
self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
|
||||
self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
|
||||
|
||||
|
||||
@unittest.skipIf(is_win32(), "requires Unix or macOS")
|
||||
@skip_unless_feature("zlib")
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user