AIprojekt-wozek/venv/Lib/site-packages/pygame/tests/blit_test.py
2022-03-10 19:45:28 +01:00

156 lines
4.6 KiB
Python

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