scripts/maketex.py

   1 #!/usr/bin/python
   2
   3 def escape(str):
   4         result = ""
   5         for c in str:
   6                 if c=='"':
   7                         result += '\\"'
   8                 elif c=='\\':
   9                         result += '\\\\'
  10                 elif ord(c)<0x20:
  11                         result += "\\%03o"%ord(c)
  12                 else:
  13                         result += c
  14         return result;
  15
  16 def make_tex(fn, filter="LINEAR", anisotropy=0, wrap=None):
  17         import Image
  18
  19         img = Image.open(fn)
  20
  21         fmt = "".join(img.getbands())
  22         if fmt=="LA":
  23                 fmt = "LUMINANCE_ALPHA"
  24         elif fmt=="L":
  25                 fmt = "LUMINANCE"
  26
  27         result = "storage %s %d %d;\n"%(fmt, img.size[0], img.size[1])
  28         result += "filter %s;\n"%filter
  29         if "MIPMAP" in filter:
  30                 result += "generate_mipmap true;\n"
  31         if anisotropy:
  32                 result += "max_anisotropy %d;\n"%anisotropy
  33         if wrap:
  34                 result += "wrap %s;\n"%wrap
  35         result += "raw_data \""
  36         data = list(img.getdata())
  37         for y in range(img.size[1]):
  38                 i = (img.size[1]-1-y)*img.size[0]
  39                 result += escape("".join(["".join([chr(v) for v in p]) for p in data[i:i+img.size[0]]]))
  40         result += "\";\n"
  41
  42         return result
  43
  44 if __name__=="__main__":
  45         import os
  46         import argparse
  47
  48         parser = argparse.ArgumentParser()
  49         parser.add_argument("-o", "--output", metavar="FILE", help="Output filename")
  50         parser.add_argument("-f", "--filter", choices=["NEAREST", "LINEAR", "MIPMAP"], default="LINEAR", help="Filtering mode")
  51         parser.add_argument("-a", "--anisotropy", metavar="NUMBER", help="Maximum anisotropy, 0 = disable")
  52         parser.add_argument("-w", "--wrap", choices=["REPEAT", "CLAMP_TO_EDGE", "MIRRORED_REPEAT"], help="Wrapping mode")
  53         parser.add_argument("image")
  54
  55         args = parser.parse_args()
  56
  57         filter = args.filter
  58         if filter=="MIPMAP":
  59                 filter = "LINEAR_MIPMAP_LINEAR"
  60
  61         out_fn = args.output
  62         if not out_fn:
  63                 out_fn = os.path.splitext(args.image)[0]+".tex2d"
  64         out = file(out_fn, "w")
  65         out.write(make_tex(args.image, filter, args.anisotropy, args.wrap))