def test_set_alpha(self):
# prepare
assert RSDL.SetAlpha(self.src_surf, RSDL.SRCALPHA, 128) == 0
# draw
RSDL_helper.blit_complete_surface(self.src_surf, self.dst_surf, 10, 10)
RSDL_helper.blit_complete_surface(self.src_surf, self.dst_surf, 20, 20)
# check
for position, color in (
((0, 0), (0, 0, 0)), # no rect
((10, 10), (127, 0, 0)), # one rect
((20, 20), (191, 0, 0)) # two overlapping rects
):
fetched_color = RSDL_helper.get_pixel(self.dst_surf, position[0],
position[1])
assert RSDL_helper.get_rgb(fetched_color,
self.dst_surf.c_format) == color
def test_set_alpha(self):
# prepare
assert RSDL.SetAlpha(self.src_surf, RSDL.SRCALPHA, 128) == 0
# draw
RSDL_helper.blit_complete_surface(
self.src_surf,
self.dst_surf,
10, 10)
RSDL_helper.blit_complete_surface(
self.src_surf,
self.dst_surf,
20, 20)
# check
for position, color in (
(( 0, 0), ( 0,0,0)), # no rect
((10,10), (127,0,0)), # one rect
((20,20), (191,0,0)) # two overlapping rects
):
fetched_color = RSDL_helper.get_pixel(self.dst_surf, position[0], position[1])
assert RSDL_helper.get_rgb(fetched_color, self.dst_surf.c_format) == color
