1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
try:
import framebuf
except ImportError:
print("SKIP")
raise SystemExit
w = 5
h = 16
size = ((w + 7) & ~7) * ((h + 7) & ~7) // 8
buf = bytearray(size)
maps = {
framebuf.MONO_VLSB: "MONO_VLSB",
framebuf.MONO_HLSB: "MONO_HLSB",
framebuf.MONO_HMSB: "MONO_HMSB",
}
for mapping in maps.keys():
for x in range(size):
buf[x] = 0
fbuf = framebuf.FrameBuffer(buf, w, h, mapping)
print(maps[mapping])
# access as buffer
print(memoryview(fbuf)[0])
# fill
fbuf.fill(1)
print(buf)
fbuf.fill(0)
print(buf)
# put pixel
fbuf.pixel(0, 0, 1)
fbuf.pixel(4, 0, 1)
fbuf.pixel(0, 15, 1)
fbuf.pixel(4, 15, 1)
print(buf)
# clear pixel
fbuf.pixel(4, 15, 0)
print(buf)
# get pixel
print(fbuf.pixel(0, 0), fbuf.pixel(1, 1))
# hline
fbuf.fill(0)
fbuf.hline(0, 1, w, 1)
print("hline", buf)
# vline
fbuf.fill(0)
fbuf.vline(1, 0, h, 1)
print("vline", buf)
# rect
fbuf.fill(0)
fbuf.rect(1, 1, 3, 3, 1)
print("rect", buf)
# fill rect
fbuf.fill(0)
fbuf.fill_rect(0, 0, 0, 3, 1) # zero width, no-operation
fbuf.fill_rect(1, 1, 3, 3, 1)
print("fill_rect", buf)
# line
fbuf.fill(0)
fbuf.line(1, 1, 3, 3, 1)
print("line", buf)
# line steep negative gradient
fbuf.fill(0)
fbuf.line(3, 3, 2, 1, 1)
print("line", buf)
# scroll
fbuf.fill(0)
fbuf.pixel(2, 7, 1)
fbuf.scroll(0, 1)
print(buf)
fbuf.scroll(0, -2)
print(buf)
fbuf.scroll(1, 0)
print(buf)
fbuf.scroll(-1, 0)
print(buf)
fbuf.scroll(2, 2)
print(buf)
# print text
fbuf.fill(0)
fbuf.text("hello", 0, 0, 1)
print(buf)
fbuf.text("hello", 0, 0, 0) # clear
print(buf)
# char out of font range set to chr(127)
fbuf.text(str(chr(31)), 0, 0)
print(buf)
print()
# test invalid constructor, and stride argument
try:
fbuf = framebuf.FrameBuffer(buf, w, h, -1, w)
except ValueError:
print("ValueError")
# test legacy constructor
if hasattr(framebuf, "FrameBuffer1"):
fbuf = framebuf.FrameBuffer1(buf, w, h)
fbuf = framebuf.FrameBuffer1(buf, w, h, w)
print(framebuf.MVLSB == framebuf.MONO_VLSB)
# test get-buffer (returns the original buffer)
fbuf = framebuf.FrameBuffer(bytearray(2), 8, 1, framebuf.MONO_HLSB)
fbuf.pixel(0, 0, 1)
fbuf.pixel(4, 0, 1)
print(bytearray(fbuf))
|
