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149 lines
4.4 KiB
Python
149 lines
4.4 KiB
Python
from helper import unittest, PillowTestCase, hopper
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try:
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import cffi
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from PIL import PyAccess
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except ImportError:
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# Skip in setUp()
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pass
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from PIL import Image
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from test_image_putpixel import TestImagePutPixel
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from test_image_getpixel import TestImageGetPixel
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Image.USE_CFFI_ACCESS = True
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class TestCffiPutPixel(TestImagePutPixel):
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def setUp(self):
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try:
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import cffi
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except ImportError:
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self.skipTest("No cffi")
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def test_put(self):
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self.test_sanity()
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class TestCffiGetPixel(TestImageGetPixel):
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def setUp(self):
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try:
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import cffi
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except ImportError:
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self.skipTest("No cffi")
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def test_get(self):
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self.test_basic()
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self.test_signedness()
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class TestCffi(PillowTestCase):
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def setUp(self):
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try:
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import cffi
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except ImportError:
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self.skipTest("No cffi")
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def _test_get_access(self, im):
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"""Do we get the same thing as the old pixel access
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Using private interfaces, forcing a capi access and
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a pyaccess for the same image"""
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caccess = im.im.pixel_access(False)
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access = PyAccess.new(im, False)
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w, h = im.size
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for x in range(0, w, 10):
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for y in range(0, h, 10):
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self.assertEqual(access[(x, y)], caccess[(x, y)])
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# Access an out-of-range pixel
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self.assertRaises(ValueError,
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lambda: access[(access.xsize+1, access.ysize+1)])
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def test_get_vs_c(self):
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rgb = hopper('RGB')
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rgb.load()
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self._test_get_access(rgb)
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self._test_get_access(hopper('RGBA'))
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self._test_get_access(hopper('L'))
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self._test_get_access(hopper('LA'))
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self._test_get_access(hopper('1'))
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self._test_get_access(hopper('P'))
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# self._test_get_access(hopper('PA')) # PA -- how do I make a PA image?
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self._test_get_access(hopper('F'))
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im = Image.new('I;16', (10, 10), 40000)
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self._test_get_access(im)
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im = Image.new('I;16L', (10, 10), 40000)
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self._test_get_access(im)
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im = Image.new('I;16B', (10, 10), 40000)
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self._test_get_access(im)
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im = Image.new('I', (10, 10), 40000)
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self._test_get_access(im)
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# These don't actually appear to be modes that I can actually make,
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# as unpack sets them directly into the I mode.
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# im = Image.new('I;32L', (10, 10), -2**10)
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# self._test_get_access(im)
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# im = Image.new('I;32B', (10, 10), 2**10)
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# self._test_get_access(im)
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def _test_set_access(self, im, color):
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"""Are we writing the correct bits into the image?
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Using private interfaces, forcing a capi access and
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a pyaccess for the same image"""
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caccess = im.im.pixel_access(False)
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access = PyAccess.new(im, False)
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w, h = im.size
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for x in range(0, w, 10):
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for y in range(0, h, 10):
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access[(x, y)] = color
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self.assertEqual(color, caccess[(x, y)])
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# Attempt to set the value on a read-only image
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access = PyAccess.new(im, True)
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try:
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access[(0, 0)] = color
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except ValueError:
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return
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self.fail("Putpixel did not fail on a read-only image")
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def test_set_vs_c(self):
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rgb = hopper('RGB')
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rgb.load()
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self._test_set_access(rgb, (255, 128, 0))
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self._test_set_access(hopper('RGBA'), (255, 192, 128, 0))
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self._test_set_access(hopper('L'), 128)
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self._test_set_access(hopper('LA'), (128, 128))
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self._test_set_access(hopper('1'), 255)
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self._test_set_access(hopper('P'), 128)
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# self._test_set_access(i, (128, 128)) #PA -- undone how to make
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self._test_set_access(hopper('F'), 1024.0)
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im = Image.new('I;16', (10, 10), 40000)
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self._test_set_access(im, 45000)
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im = Image.new('I;16L', (10, 10), 40000)
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self._test_set_access(im, 45000)
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im = Image.new('I;16B', (10, 10), 40000)
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self._test_set_access(im, 45000)
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im = Image.new('I', (10, 10), 40000)
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self._test_set_access(im, 45000)
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# im = Image.new('I;32L', (10, 10), -(2**10))
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# self._test_set_access(im, -(2**13)+1)
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# im = Image.new('I;32B', (10, 10), 2**10)
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# self._test_set_access(im, 2**13-1)
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if __name__ == '__main__':
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unittest.main()
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# End of file
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