Removed unused python files

This commit is contained in:
alpine9000
2016-03-01 15:20:51 +11:00
parent 7677ed6951
commit 42f49cf8ab
2 changed files with 0 additions and 138 deletions
-59
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@@ -1,59 +0,0 @@
from array import array
class BitplaneImage(object):
def __init__(self, byte_width, height, bitplanes):
self.byte_width = byte_width
self.height = height
self.bitplanes = bitplanes
def image_to_bitplanes(image, bit_depth):
"""
Convert a PIL image into bitplanes.
Returns a bitmap image.
"""
bitplanes = [array('c') for _ in xrange(bit_depth)]
width, height = image.size
byte_width = (width + 7) // 8
for row in xrange(height):
for byte in xrange(byte_width):
planes = [0] * bit_depth
for bit in xrange(8):
palette_index = image.getpixel((byte * 8 + 7 - bit, row))
for plane_index in range(bit_depth):
planes[plane_index] |= ((palette_index >> plane_index) & 1) << bit
for plane_index in range(bit_depth):
bitplanes[plane_index].append(chr(planes[plane_index]))
return BitplaneImage(byte_width, height, bitplanes)
def write_interleaved(file, image):
"""Write all bitplanes in interleaved mode to a file."""
for row in xrange(image.height):
offset = row * image.byte_width
for plane in image.bitplanes:
plane[offset:offset + image.byte_width].write(file)
def write_bitplane(file, image, bitplane_index):
"""Write a single bitplane to a file."""
image.bitplanes[bitplane_index].write(file)
def to_amiga_colors(palette):
"""
Convert 24 bit colors to Amiga 12 bit colors.
palette is a sequence of integers: [r, g, b, ...]
"""
number_of_colors = len(palette) // 3
amiga_colors = []
for color_index in xrange(number_of_colors):
r, g, b = [c for c in palette[color_index * 3:(color_index + 1) * 3]]
rgb = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4)
amiga_colors.append(rgb)
return amiga_colors
-79
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@@ -1,79 +0,0 @@
#!/usr/bin/env python
import sys
import math
from PIL import Image
from bitmap import (
image_to_bitplanes,
write_bitplane,
write_interleaved,
to_amiga_colors,
)
def main(args):
source_file = args.source
bit_depth = args.depth
verbose = args.verbose
img = Image.open(source_file)
if img.mode != 'P':
print 'Image is not palette-based'
sys.exit(1)
palette = img.getpalette() # always 256*3 values
if not bit_depth:
max_index = img.getextrema()[1]
bit_depth = int(math.log(max_index) / math.log(2)) + 1
if verbose:
print 'Maximum palette index used: %d: assuming bit depth %d' % (max_index, bit_depth)
amiga_palette = to_amiga_colors(
palette[:(1 << bit_depth) * 3]
)
width, height = img.size
if (width & 7) != 0:
print 'Width is not divisable by 8:', width
sys.exit(1)
bitmap_image = image_to_bitplanes(img, bit_depth)
if verbose:
print 'Image width: %d pixels = %d bytes. Height: %d pixels' % (
width, bitmap_image.byte_width, height)
if args.separate:
for plane_index in range(bit_depth):
with open(args.out % (plane_index + 1), 'wb') as out:
write_bitplane(out, bitmap_image, plane_index)
else:
with open(args.out, 'wb') as out:
write_interleaved(out, bitmap_image)
if args.copper:
with open(args.copper, 'w') as out:
for index, rgb in enumerate(amiga_palette):
out.write('\tdc.w\t$%x,$%03x\n' % (0x180 + index * 2, rgb))
if __name__ == '__main__':
import argparse
parser = argparse.ArgumentParser(description='Convert an image to Amiga bitplanes')
parser.add_argument(
'--depth', metavar='N', type=int, default=None,
help='Set number of bitplanes in output')
parser.add_argument(
'--copper',
help='Write palette as copper source code (default is to auto-detect)')
parser.add_argument(
'--separate', action='store_true',
help='Write one bitplane per file. Use %%s in filename as replacement for bitplane number.')
parser.add_argument(
'--verbose', '-v', action='store_true',
help='Write more information to stdout')
parser.add_argument('source', metavar='IMAGE_FILE',
help='Image file to convert to bitplanes')
parser.add_argument('out', metavar='BITPLANES_FILE',
help='File to write bitmaps to')
args = parser.parse_args()
main(args)