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opentx/radio/util/img2lbm.py
2018-08-05 09:56:47 +02:00

264 lines
8.5 KiB
Python
Executable file

#!/usr/bin/env python
from __future__ import division, print_function
import sys
import os.path
from PIL import Image
class RLE_encoder:
RLE_BYTE = 0
RLE_SEQ = 1
def __init__(self, out):
self.state = self.RLE_BYTE
self.count = 0
self.prev_byte = None
self.out = out
def eq_prev_byte(self, in_byte):
if self.prev_byte is None:
return False
return in_byte == self.prev_byte
def encode_byte(self, in_byte):
if self.state == self.RLE_BYTE:
self.out(in_byte)
if self.eq_prev_byte(in_byte):
self.state = self.RLE_SEQ
self.count = 0
else:
self.prev_byte = in_byte
elif self.state == self.RLE_SEQ:
if self.eq_prev_byte(in_byte):
self.count += 1
if self.count == 255:
self.out(self.count)
self.prev_byte = None
self.state = self.RLE_BYTE
else:
self.out(self.count)
self.out(in_byte)
self.prev_byte = in_byte
self.state = self.RLE_BYTE
def encode_end(self):
if self.state == self.RLE_SEQ:
self.out(self.count)
class dummy_encoder:
def __init__(self, out):
self.out = out
def encode_byte(self, in_byte):
self.out(in_byte)
def encode_end(self):
pass
def writeSize(f, width, height):
if lcdwidth > 255:
f.write("%d,%d,%d,%d,\n" % (width % 256, width // 256, height % 256, height // 256))
else:
f.write("%d,%d,\n" % (width, height))
def F_writeValue(f):
def writeValue(value):
f.write("0x%02x," % value)
return writeValue
def F_getPixelCoord():
def getCoord(x,y):
return (x,y)
return getCoord
def F_getPixelCoord_R(w,h):
def getCoord(x,y):
return (w-x-1, h-y-1)
return getCoord
## MAIN ##
image = Image.open(sys.argv[1])
width, height = image.size
image_fmt = image.format
output_filename = sys.argv[2]
with open(output_filename, "w") as f:
lcdwidth = int(sys.argv[3])
if len(sys.argv) > 4:
s = sys.argv[4].split('-')
what = s[0]
pixel_coord = F_getPixelCoord()
if (len(s) > 1) and (s[1] == 'R'):
pixel_coord = F_getPixelCoord_R(width,height)
else:
for s in ("03x05", "04x06", "05x07", "08x10", "10x14", "22x38"):
if s in sys.argv[2]:
what = s
break
extension = os.path.splitext(output_filename)[1]
out = F_writeValue(f)
if extension == ".rle" or ((len(sys.argv) > 5) and (sys.argv[5] == "rle")):
encoder = RLE_encoder(out)
else:
encoder = dummy_encoder(out)
if what == "1bit":
rows = 1
if len(sys.argv) > 5:
rows = int(sys.argv[5])
image = image.convert(mode='1')
writeSize(f, width, height // rows)
for y in range(0, height, 8):
for x in range(width):
value = 0
for z in range(8):
if y + z < height:
if image_fmt == 'XBM':
if image.getpixel((x, y + z)) > 0:
value += 1 << z
else:
if image.getpixel((x, y + z)) == 0:
value += 1 << z
encoder.encode_byte(value)
f.write("\n")
encoder.encode_end()
elif what == "4bits":
colors = []
writeSize(f, width, height)
image = image.convert(mode='L')
for y in range(0, height, 2):
for x in range(width):
value = 0xFF
gray1 = image.getpixel((x, y))
if y + 1 < height:
gray2 = image.getpixel((x, y + 1))
else:
gray2 = 255
for i in range(4):
if (gray1 & (1 << (4 + i))):
value -= 1 << i
if (gray2 & (1 << (4 + i))):
value -= 1 << (4 + i)
encoder.encode_byte(value)
f.write("\n")
encoder.encode_end()
elif what == "8bits":
colors = []
writeSize(f, width, height)
image = image.convert(mode='L')
for y in range(height):
for x in range(width):
value = image.getpixel((x, y))
value = 0x0f - (value >> 4)
encoder.encode_byte(value)
f.write("\n")
encoder.encode_end()
elif what == "4/4/4/4":
constant = sys.argv[2].upper()[:-4]
values = []
writeSize(f, width, height)
for y in range(height):
for x in range(width):
pixel = image.getpixel(pixel_coord(x, y))
val = ((pixel[3] // 16) << 12) + ((pixel[0] // 16) << 8) + ((pixel[1] // 16) << 4) + ((pixel[2] // 16) << 0)
encoder.encode_byte(val & 255)
encoder.encode_byte(val >> 8)
encoder.encode_end()
#f.write("\n};\n")
#if extension != ".rle":
# f.write("const Bitmap %s(BMP_ARGB4444, %d, %d, (uint16_t*)__%s);\n" % (constant, width, height, constant))
elif what == "5/6/5":
constant = sys.argv[2].upper()[:-4]
values = []
writeSize(f, width, height)
for y in range(height):
for x in range(width):
pixel = image.getpixel(pixel_coord(x, y))
val = ((pixel[0] >> 3) << 11) + ((pixel[1] >> 2) << 5) + ((pixel[2] >> 3) << 0)
encoder.encode_byte(val & 255)
encoder.encode_byte(val >> 8)
encoder.encode_end()
#f.write("\n};\n")
#if extension != ".rle":
# f.write("const Bitmap %s(BMP_RGB565, %d, %d, (uint16_t*)__%s);\n" % (constant, width, height, constant))
elif what == "03x05":
image = image.convert(mode='L')
for y in range(0, height, 5):
for x in range(width):
value = 0
for z in range(5):
if image.getpixel((x, y + z)) == 0:
value += 1 << z
f.write("0x%02x," % value)
f.write("\n")
elif what == "04x06":
image = image.convert(mode='L')
for y in range(0, height, 7):
for x in range(width):
value = 0
for z in range(7):
if image.getpixel((x, y + z)) == 0:
value += 1 << z
if value == 0x7f:
value = 0xff
f.write("0x%02x," % value)
f.write("\n")
elif what == "05x07":
image = image.convert(mode='L')
for y in range(0, height, 8):
for x in range(width):
value = 0
for z in range(8):
if image.getpixel((x, y + z)) == 0:
value += 1 << z
f.write("0x%02x," % value)
f.write("\n")
elif what == "08x10":
image = image.convert(mode='L')
for y in range(0, height, 12):
for x in range(width):
skip = True
for l in range(0, 12, 8):
value = 0
for z in range(8):
if l + z < 12:
if image.getpixel((x, y + l + z)) == 0:
value += 1 << z
else:
skip = False
if skip and l == 8:
value = 0xff
f.write("0x%02x," % value)
f.write("\n")
elif what == "10x14":
image = image.convert(mode='L')
for y in range(0, height, 16):
for x in range(width):
for l in range(0, 16, 8):
value = 0
for z in range(8):
if image.getpixel((x, y + l + z)) == 0:
value += 1 << z
f.write("0x%02x," % value)
f.write("\n")
elif what == "22x38":
image = image.convert(mode='L')
for y in range(0, height, 40):
for x in range(width):
for l in range(0, 40, 8):
value = 0
for z in range(8):
if image.getpixel((x, y + l + z)) == 0:
value += 1 << z
f.write("0x%02x," % value)
f.write("\n")
else:
print("wrong argument", sys.argv[4])