def test_get_set_render_draw_blend_mode(self):
window = video.create_window("Test", 10, 10, 10, 10,
video.SDL_WINDOW_HIDDEN)
self.assertIsInstance(window, video.SDL_Window)
for i in range(render.get_num_render_drivers()):
renderer = render.create_renderer(window, i,
render.SDL_RENDERER_ACCELERATED)
self.assertIsInstance(renderer, render.SDL_Renderer)
modes = (video.SDL_BLENDMODE_NONE,
video.SDL_BLENDMODE_ADD,
video.SDL_BLENDMODE_BLEND,
video.SDL_BLENDMODE_MOD,
)
for mode in modes:
render.set_render_draw_blend_mode(renderer, mode)
bmode = render.get_render_draw_blend_mode(renderer)
self.assertEqual(bmode, mode)
render.destroy_renderer(renderer)
self.assertRaises(sdl.SDLError, render.set_render_draw_blend_mode,
renderer, video.SDL_BLENDMODE_ADD)
self.assertRaises(sdl.SDLError, render.get_render_draw_blend_mode,
renderer)
video.destroy_window(window)
def blendmode(self, value):
"""The blend mode used for drawing operations (fill and line)."""
render.set_render_draw_blend_mode(self.renderer, value)