| paul@6 | 1 | #!/usr/bin/env python |
| paul@6 | 2 | |
| paul@6 | 3 | """ |
| paul@6 | 4 | Acorn Electron ULA simulation controller. |
| paul@6 | 5 | """ |
| paul@6 | 6 | |
| paul@6 | 7 | from ula import * |
| paul@6 | 8 | import pygame |
| paul@6 | 9 | |
| paul@22 | 10 | WIDTH = 640 |
| paul@22 | 11 | HEIGHT = 512 |
| paul@22 | 12 | INTENSITY = 255 |
| paul@22 | 13 | |
| paul@22 | 14 | def update_screen(screen, screen_array): |
| paul@22 | 15 | |
| paul@22 | 16 | """ |
| paul@22 | 17 | Update the host's 'screen' surface with the contents of the 'screen_array' |
| paul@22 | 18 | containing the pixel content of the screen. |
| paul@22 | 19 | """ |
| paul@22 | 20 | |
| paul@25 | 21 | surface = pygame.Surface((MAX_WIDTH, MAX_HEIGHT), 0, screen) |
| paul@27 | 22 | sa = pygame.surfarray.pixels3d(surface) |
| paul@27 | 23 | a = sa.transpose(1, 0, 2) |
| paul@22 | 24 | |
| paul@22 | 25 | # Copy the array to a surface and apply a pixel intensity. |
| paul@22 | 26 | |
| paul@22 | 27 | try: |
| paul@22 | 28 | a[:] = screen_array |
| paul@22 | 29 | a *= INTENSITY |
| paul@22 | 30 | finally: |
| paul@27 | 31 | del a, sa |
| paul@22 | 32 | |
| paul@22 | 33 | # Scale the surface to the dimensions of the host's screen and copy the |
| paul@22 | 34 | # result to the host's screen. |
| paul@22 | 35 | |
| paul@22 | 36 | screen.blit(pygame.transform.scale(surface, (WIDTH, HEIGHT)), (0, 0)) |
| paul@10 | 37 | |
| paul@6 | 38 | def mainloop(): |
| paul@6 | 39 | while 1: |
| paul@6 | 40 | pygame.display.flip() |
| paul@6 | 41 | event = pygame.event.wait() |
| paul@6 | 42 | if event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE: |
| paul@6 | 43 | break |
| paul@6 | 44 | |
| paul@6 | 45 | if __name__ == "__main__": |
| paul@6 | 46 | pygame.init() |
| paul@6 | 47 | screen = pygame.display.set_mode((WIDTH, HEIGHT), 0) |
| paul@6 | 48 | |
| paul@11 | 49 | ula = get_ula() |
| paul@6 | 50 | |
| paul@6 | 51 | # Test MODE 2. |
| paul@6 | 52 | |
| paul@6 | 53 | ula.set_mode(2) |
| paul@6 | 54 | |
| paul@11 | 55 | ula.fill(0x3000, 0x5800 - 320, encode((1, 6), 4)) |
| paul@11 | 56 | ula.fill(0x5800 - 320, 0x8000, encode((2, 7), 4)) |
| paul@27 | 57 | ula_screen = update(ula) |
| paul@22 | 58 | update_screen(screen, ula_screen) |
| paul@6 | 59 | mainloop() |
| paul@6 | 60 | |
| paul@6 | 61 | ula.screen_start = 0x3000 + 2 |
| paul@27 | 62 | ula_screen = update(ula) |
| paul@22 | 63 | update_screen(screen, ula_screen) |
| paul@6 | 64 | mainloop() |
| paul@6 | 65 | |
| paul@6 | 66 | # Test MODE 6. |
| paul@6 | 67 | |
| paul@6 | 68 | ula.set_mode(6) |
| paul@6 | 69 | |
| paul@11 | 70 | ula.fill(0x6000, 0x6f00 + 160, encode((1, 0, 1, 1, 0, 0, 1, 1), 1)) |
| paul@11 | 71 | ula.fill(0x6f00 + 160, 0x7f40, encode((1, 0, 1, 0, 1, 0, 1, 0), 1)) |
| paul@27 | 72 | ula_screen = update(ula) |
| paul@22 | 73 | update_screen(screen, ula_screen) |
| paul@6 | 74 | mainloop() |
| paul@6 | 75 | |
| paul@6 | 76 | ula.screen_start = 0x6f00 + 160 |
| paul@27 | 77 | ula_screen = update(ula) |
| paul@22 | 78 | update_screen(screen, ula_screen) |
| paul@6 | 79 | mainloop() |
| paul@6 | 80 | |
| paul@6 | 81 | # vim: tabstop=4 expandtab shiftwidth=4 |
