160 lines
4.6 KiB
Python
160 lines
4.6 KiB
Python
import unittest
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import pygame
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from pygame.locals import *
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class BlitTest( unittest.TestCase ):
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def test_SRCALPHA( self ):
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""" SRCALPHA tests.
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"""
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#blend(s, 0, d) = d
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s = pygame.Surface((1,1), SRCALPHA, 32)
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s.fill((255, 255,255, 0))
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d = pygame.Surface((1,1), SRCALPHA, 32)
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d.fill((0, 0,255, 255))
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s.blit(d, (0,0))
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self.assertEqual(s.get_at((0,0)), d.get_at((0,0)) )
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#blend(s, 255, d) = s
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s = pygame.Surface((1,1), SRCALPHA, 32)
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s.fill((123, 0, 0, 255))
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s1 = pygame.Surface((1,1), SRCALPHA, 32)
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s1.fill((123, 0, 0, 255))
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d = pygame.Surface((1,1), SRCALPHA, 32)
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d.fill((10, 0,0, 0))
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s.blit(d, (0,0))
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self.assertEqual(s.get_at((0,0)), s1.get_at((0,0)) )
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#TODO: these should be true too.
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#blend(0, sA, 0) = 0
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#blend(255, sA, 255) = 255
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#blend(s, sA, d) <= 255
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def test_BLEND( self ):
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""" BLEND_ tests.
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"""
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#test that it doesn't overflow, and that it is saturated.
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s = pygame.Surface((1,1), SRCALPHA, 32)
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s.fill((255, 255,255, 0))
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d = pygame.Surface((1,1), SRCALPHA, 32)
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d.fill((0, 0,255, 255))
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s.blit(d, (0,0), None, BLEND_ADD)
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#print "d %s" % (d.get_at((0,0)),)
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#print s.get_at((0,0))
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#self.assertEqual(s.get_at((0,0))[2], 255 )
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#self.assertEqual(s.get_at((0,0))[3], 0 )
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s.blit(d, (0,0), None, BLEND_RGBA_ADD)
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#print s.get_at((0,0))
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self.assertEqual(s.get_at((0,0))[3], 255 )
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# test adding works.
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s.fill((20, 255,255, 0))
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d.fill((10, 0,255, 255))
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s.blit(d, (0,0), None, BLEND_ADD)
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self.assertEqual(s.get_at((0,0))[2], 255 )
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# test subbing works.
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s.fill((20, 255,255, 0))
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d.fill((10, 0,255, 255))
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s.blit(d, (0,0), None, BLEND_SUB)
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self.assertEqual(s.get_at((0,0))[0], 10 )
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# no overflow in sub blend.
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s.fill((20, 255,255, 0))
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d.fill((30, 0,255, 255))
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s.blit(d, (0,0), None, BLEND_SUB)
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self.assertEqual(s.get_at((0,0))[0], 0 )
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def make_blit_list(self, num_surfs):
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blit_list = []
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for i in range(num_surfs):
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dest = (i * 10, 0)
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surf = pygame.Surface((10, 10), SRCALPHA, 32)
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color = (i * 1, i * 1, i * 1)
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surf.fill(color)
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blit_list.append((surf, dest))
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return blit_list
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def test_blits(self):
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NUM_SURFS = 255
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PRINT_TIMING = 0
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dst = pygame.Surface((NUM_SURFS * 10, 10), SRCALPHA, 32)
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dst.fill((230, 230, 230))
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blit_list = self.make_blit_list(NUM_SURFS)
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def blits(blit_list):
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for surface, dest in blit_list:
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dst.blit(surface, dest)
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from time import time
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t0 = time()
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results = blits(blit_list)
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t1 = time()
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if PRINT_TIMING:
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print("python blits: %s" % (t1-t0))
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dst.fill((230, 230, 230))
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t0 = time()
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results = dst.blits(blit_list)
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t1 = time()
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if PRINT_TIMING:
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print("Surface.blits :%s" % (t1-t0))
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# check if we blit all the different colors in the correct spots.
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for i in range(NUM_SURFS):
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color = (i * 1, i * 1, i * 1)
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self.assertEqual(dst.get_at((i * 10, 0)), color)
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self.assertEqual(dst.get_at(((i * 10) + 5, 5)), color)
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self.assertEqual(len(results), NUM_SURFS)
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t0 = time()
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results = dst.blits(blit_list, doreturn = 0)
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t1 = time()
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if PRINT_TIMING:
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print("Surface.blits doreturn=0: %s" % (t1-t0))
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self.assertEqual(results, None)
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t0 = time()
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results = dst.blits(((surf, dest) for surf, dest in blit_list))
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t1 = time()
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if PRINT_TIMING:
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print("Surface.blits generator: %s" % (t1-t0))
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def test_blits_not_sequence(self):
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dst = pygame.Surface((100, 10), SRCALPHA, 32)
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self.assertRaises(ValueError, dst.blits, None)
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def test_blits_wrong_length(self):
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dst = pygame.Surface((100, 10), SRCALPHA, 32)
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self.assertRaises(ValueError, dst.blits, [pygame.Surface((10, 10), SRCALPHA, 32)])
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def test_blits_bad_surf_args(self):
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dst = pygame.Surface((100, 10), SRCALPHA, 32)
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self.assertRaises(TypeError, dst.blits, [(None, None)])
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def test_blits_bad_dest(self):
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dst = pygame.Surface((100, 10), SRCALPHA, 32)
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self.assertRaises(TypeError, dst.blits, [(pygame.Surface((10, 10), SRCALPHA, 32), None)])
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if __name__ == '__main__':
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unittest.main()
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