mirror of
git://git.acid.vegas/scroll.git
synced 2024-11-07 08:46:45 +00:00
112 lines
3.7 KiB
Python
112 lines
3.7 KiB
Python
#!/usr/bin/env python
|
|
# Scroll IRC Art Bot - Developed by acidvegas in Python (https://git.acid.vegas/scroll)
|
|
|
|
'''big props to wrk (wr34k) for this one, did most of the work, just cleaned it up a little'''
|
|
|
|
import io
|
|
|
|
try:
|
|
from PIL import Image
|
|
except ImportError:
|
|
raise SystemExit('missing required \'pillow\' library (https://pypi.org/project/pillow/)')
|
|
|
|
async def convert(data, img_width=80):
|
|
image = Image.open(io.BytesIO(data))
|
|
del data
|
|
(width, height) = image.size
|
|
img_height = img_width / width * height
|
|
del height, width
|
|
image.thumbnail((img_width, img_height), Image.Resampling.LANCZOS)
|
|
del img_height, img_width
|
|
ansi_image = AnsiImage(image)
|
|
del image
|
|
CHAR = '\u2580'
|
|
buf = ''
|
|
for (y, row) in enumerate(ansi_image.halfblocks):
|
|
last_fg = -1
|
|
last_bg = -1
|
|
for (x, pixel_pair) in enumerate(row):
|
|
fg = pixel_pair.top.irc
|
|
bg = pixel_pair.bottom.irc
|
|
if x != 0:
|
|
if fg == last_fg and bg == last_bg:
|
|
buf += CHAR
|
|
elif bg == last_bg:
|
|
buf += f'\x03{fg}{CHAR}'
|
|
else:
|
|
buf += f'\x03{fg},{bg}{CHAR}'
|
|
else:
|
|
buf += f'\x03{fg},{bg}{CHAR}'
|
|
last_fg = fg
|
|
last_bg = bg
|
|
if y != len(ansi_image.halfblocks) - 1:
|
|
buf += '\n'
|
|
else:
|
|
buf += '\x0f'
|
|
return buf.splitlines()
|
|
|
|
def hex_to_rgb(color):
|
|
r = color >> 16
|
|
g = (color >> 8) % 256
|
|
b = color % 256
|
|
return (r,g,b)
|
|
|
|
def rgb_to_hex(rgb):
|
|
(r,g,b) = rgb
|
|
return (r << 16) + (g << 8) + b
|
|
|
|
def color_distance_squared(c1, c2):
|
|
dr = c1[0] - c2[0]
|
|
dg = c1[1] - c2[1]
|
|
db = c1[2] - c2[2]
|
|
return dr * dr + dg * dg + db * db
|
|
|
|
class AnsiPixel:
|
|
def __init__(self, pixel_u32):
|
|
self.RGB99 = [
|
|
0xffffff, 0x000000, 0x00007f, 0x009300, 0xff0000, 0x7f0000, 0x9c009c, 0xfc7f00,
|
|
0xffff00, 0x00fc00, 0x009393, 0x00ffff, 0x0000fc, 0xff00ff, 0x7f7f7f, 0xd2d2d2,
|
|
0x470000, 0x472100, 0x474700, 0x324700, 0x004700, 0x00472c, 0x004747, 0x002747,
|
|
0x000047, 0x2e0047, 0x470047, 0x47002a, 0x740000, 0x743a00, 0x747400, 0x517400,
|
|
0x007400, 0x007449, 0x007474, 0x004074, 0x000074, 0x4b0074, 0x740074, 0x740045,
|
|
0xb50000, 0xb56300, 0xb5b500, 0x7db500, 0x00b500, 0x00b571, 0x00b5b5, 0x0063b5,
|
|
0x0000b5, 0x7500b5, 0xb500b5, 0xb5006b, 0xff0000, 0xff8c00, 0xffff00, 0xb2ff00,
|
|
0x00ff00, 0x00ffa0, 0x00ffff, 0x008cff, 0x0000ff, 0xa500ff, 0xff00ff, 0xff0098,
|
|
0xff5959, 0xffb459, 0xffff71, 0xcfff60, 0x6fff6f, 0x65ffc9, 0x6dffff, 0x59b4ff,
|
|
0x5959ff, 0xc459ff, 0xff66ff, 0xff59bc, 0xff9c9c, 0xffd39c, 0xffff9c, 0xe2ff9c,
|
|
0x9cff9c, 0x9cffdb, 0x9cffff, 0x9cd3ff, 0x9c9cff, 0xdc9cff, 0xff9cff, 0xff94d3,
|
|
0x000000, 0x131313, 0x282828, 0x363636, 0x4d4d4d, 0x656565, 0x818181, 0x9f9f9f,
|
|
0xbcbcbc, 0xe2e2e2, 0xffffff
|
|
]
|
|
self.irc = self.nearest_hex_color(pixel_u32, self.RGB99)
|
|
|
|
def nearest_hex_color(self, pixel_u32, hex_colors):
|
|
rgb_colors = [hex_to_rgb(color) for color in hex_colors]
|
|
rgb_colors.sort(key=lambda rgb: color_distance_squared(hex_to_rgb(pixel_u32), rgb))
|
|
hex_color = rgb_to_hex(rgb_colors[0])
|
|
return hex_colors.index(hex_color)
|
|
|
|
class AnsiPixelPair:
|
|
def __init__(self, top, bottom):
|
|
self.top = top
|
|
self.bottom = bottom
|
|
|
|
class AnsiImage:
|
|
def __init__(self, image):
|
|
self.bitmap = [[rgb_to_hex(image.getpixel((x, y))) for x in range(image.size[0])] for y in range(image.size[1])]
|
|
if len(self.bitmap) % 2 != 0:
|
|
self.bitmap.append([0 for x in range(image.size[0])])
|
|
ansi_bitmap = [[AnsiPixel(y) for y in x] for x in self.bitmap]
|
|
ansi_canvas = list()
|
|
for two_rows in range(0, len(ansi_bitmap), 2):
|
|
top_row = ansi_bitmap[two_rows]
|
|
bottom_row = ansi_bitmap[two_rows+1]
|
|
ansi_row = list()
|
|
for i in range(len(self.bitmap[0])):
|
|
top_pixel = top_row[i]
|
|
bottom_pixel = bottom_row[i]
|
|
pixel_pair = AnsiPixelPair(top_pixel, bottom_pixel)
|
|
ansi_row.append(pixel_pair)
|
|
ansi_canvas.append(ansi_row)
|
|
self.image = image
|
|
self.halfblocks = ansi_canvas |