mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-12-01 13:50:30 +00:00
38 lines
912 B
Python
Executable File
38 lines
912 B
Python
Executable File
#!/usr/bin/python
|
|
|
|
import sys
|
|
|
|
# reverse byte
|
|
def rev(n):
|
|
return int('{:08b}'.format(n)[::-1], 2)
|
|
|
|
# output bits in given range
|
|
def out(i, pix, lb, hb, reverse=0, shift=0):
|
|
x = (pix >> lb) & ((1<<(hb-lb))-1)
|
|
if reverse:
|
|
x = rev(x)
|
|
if shift:
|
|
x = x << shift
|
|
assert(x>=0 and x<=255)
|
|
output[i].append(x)
|
|
|
|
# read PBM (binary P4 format) file
|
|
with open(sys.argv[1],'rb') as f:
|
|
# read PBM header
|
|
header = f.readline().strip()
|
|
assert(header == 'P4')
|
|
dims = f.readline().strip()
|
|
while dims[0] == '#':
|
|
dims = f.readline().strip()
|
|
width,height = map(int, dims.split())
|
|
wbytes = (width+7)/8
|
|
data = f.read()
|
|
print("{%d,%d," % (wbytes,height), end='')
|
|
for i in range(0,len(data)):
|
|
if i>0:
|
|
sys.stdout.write(",")
|
|
ofs = i+wbytes-(i%wbytes)*2-1
|
|
sys.stdout.write( "0x%02x" % ord(data[ofs]) )
|
|
print("}")
|
|
|