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105 lines
3.6 KiB
Python
105 lines
3.6 KiB
Python
#!/usr/bin/env python
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import os
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import re
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import struct
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from collections import defaultdict
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from PIL import Image, ImageDraw
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from common import crc24_func, font
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def get_color(fname):
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crc = crc24_func(fname)
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# values 0-7 must not be used as they might represent transparency
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# so we are left with 248 values
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return 8+crc%248
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def makedef(indir, outdir, shred=True):
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infiles = defaultdict(list)
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sig = None
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# sanity checks and fill infiles dict
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for f in os.listdir(indir):
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m = re.match('(\d+)_([A-Za-z0-9_]+)_(\d\d)_(\d\d)_([A-Za-z0-9_]+)_(\d+)x(\d+)_(\d+)x(\d+).png', f)
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if not m:
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continue
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t,p,bid,j,fn,fw,fh,lm,tm = m.groups()
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t,bid,j,fw,fh,lm,tm = int(t),int(bid),int(j),int(fw),int(fh),int(lm),int(tm)
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im = Image.open(os.sep.join([indir,f]))
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w,h = im.size
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if im.mode != 'P':
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print "input images must have a palette"
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return False
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cursig =(t,p,im.getpalette())
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if not sig:
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sig = cursig
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else:
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if sig != cursig:
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print "sigs must match - got:"
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print sig
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print cursig
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return False
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if len(fn) > 9:
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print "filename can't be longer than 9 bytes"
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return False
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infiles[bid].append((im,t,p,j,fn,fw,fh,lm,tm))
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if len(infiles) == 0:
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print "no input files detected"
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return False
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# check if j values for all bids are correct and sort them in j order in the process
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for bid in infiles:
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infiles[bid].sort(key=lambda t: t[3])
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for k,(_,_,_,j,_,_,_,_,_) in enumerate(infiles[bid]):
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if k != j:
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print "incorrect j value %d for bid %d should be %d"%(j,bid,k)
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t,p,pal = cursig
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outf = open(outdir+"/"+p+".def", "w+")
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# write the header
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# full width and height are not used and not the same for all frames
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# in some defs, so setting to zero
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outf.write(struct.pack("<IIII", t,0,0,len(infiles)))
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# write the palette
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outf.write(struct.pack("768B", *pal))
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# the bid table requires 16 bytes for each bid and 13+4 bytes for each entry
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bidtablesize = 16*len(infiles)+sum(len(l)*(13+4) for l in infiles.values())
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# the position after the bid table is the header plus palette plus bid table size
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curoffset = 16+768+bidtablesize
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for bid,l in infiles.items():
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# write bid and number of frames
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# the last two values have unknown meaning
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outf.write(struct.pack("<IIII",bid,len(l),0,0))
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# write filenames
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for _,_,_,_,fn,_,_,_,_ in l:
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outf.write(struct.pack("13s", fn+".pcx"))
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# write data offsets
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for im,_,_,_,_,_,_,_,_ in l:
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outf.write(struct.pack("<I",curoffset))
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w,h = im.size
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# every image occupies one byte per pixel plus 32 byte header
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curoffset += w*h+32
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for bid,l in infiles.items():
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for im,_,p,j,_,fw,fh,lm,tm in l:
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w,h = im.size
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outf.write(struct.pack("<IIIIIIii",w*h,0,fw,fh,w,h,lm,tm))
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if shred:
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im = Image.new("P", (w*3,h*3), get_color(p))
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draw = ImageDraw.Draw(im)
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draw.text((0,0),"%d%s"%(j,p),font=font)
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im = im.resize((w,h),Image.ANTIALIAS)
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buf = ''.join([chr(i) for i in list(im.getdata())])
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outf.write(buf)
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return True
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if __name__ == '__main__':
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import sys
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if len(sys.argv) != 3:
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print "usage: %s indir outdir"%sys.argv[0]
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exit(1)
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ret = makedef(sys.argv[1], sys.argv[2])
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exit(0 if ret else 1)
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