circuitpython/tests/extmod/framebuf4.py

try:
    import framebuf
except ImportError:
    print("SKIP")
    raise SystemExit


def printbuf():
    print("--8<--")
    for y in range(h):
        print(buf[y * w // 2 : (y + 1) * w // 2])
    print("-->8--")


w = 16
h = 8
buf = bytearray(w * h // 2)
fbuf = framebuf.FrameBuffer(buf, w, h, framebuf.GS4_HMSB)

# fill
fbuf.fill(0x0F)
printbuf()
fbuf.fill(0xA0)
printbuf()

# put pixel
fbuf.pixel(0, 0, 0x01)
printbuf()
fbuf.pixel(w - 1, 0, 0x02)
printbuf()
fbuf.pixel(w - 1, h - 1, 0x03)
printbuf()
fbuf.pixel(0, h - 1, 0x04)
printbuf()

# get pixel
print(fbuf.pixel(0, 0), fbuf.pixel(w - 1, 0), fbuf.pixel(w - 1, h - 1), fbuf.pixel(0, h - 1))
print(fbuf.pixel(1, 0), fbuf.pixel(w - 2, 0), fbuf.pixel(w - 2, h - 1), fbuf.pixel(1, h - 1))

# fill rect
fbuf.fill_rect(0, 0, w, h, 0x0F)
printbuf()
fbuf.fill_rect(0, 0, w, h, 0xF0)
fbuf.fill_rect(1, 0, w // 2 + 1, 1, 0xF1)
printbuf()
fbuf.fill_rect(1, 0, w // 2 + 1, 1, 0x10)
fbuf.fill_rect(1, 0, w // 2, 1, 0xF1)
printbuf()
fbuf.fill_rect(1, 0, w // 2, 1, 0x10)
fbuf.fill_rect(0, h - 4, w // 2 + 1, 4, 0xAF)
printbuf()
fbuf.fill_rect(0, h - 4, w // 2 + 1, 4, 0xB0)
fbuf.fill_rect(0, h - 4, w // 2, 4, 0xAF)
printbuf()
fbuf.fill_rect(0, h - 4, w // 2, 4, 0xB0)