在pygame中禁用抗锯齿

我尝试在pygame中使用 pygame.PixelArray

import pygame


BLACK = (0, 0, 0)
BLUE  = (0, 0, 255)
WHITE = (255,255,255)


class GUI:

    def __init__(self):

        self.screen = pygame.display.set_mode((300, 300))
        pygame.mouse.set_visible(True)
        self.clock = pygame.time.Clock()

    def gameloop(self):

        running = True
        while running:
            self.screen.fill(WHITE)
            # event handling
            for event in pygame.event.get():
                if event.type == pygame.QUIT:
                    running = False
            # drawing
            # for some reason, everything gets anti-aliased
            pixel_array = pygame.PixelArray(self.screen)
            pixel_array[100][100] = BLACK
            pixel_array[100][101] = BLUE
            pixel_array[101][100] = BLUE
            pixel_array[101][101] = BLACK
            del pixel_array
            # update full display
            pygame.display.flip()
            self.clock.tick(30)


def main():

    pygame.init()
    gui = GUI()
    gui.gameloop()
    pygame.quit()


if __name__ == '__main__':

    main()

我得到的是:

我期望得到的是:

Python版本:3.7.2(64位)
操作系统:Windows 10家庭版1803版本17134.590

显示器:集成在联想笔记本电脑中(1920 x 1080)