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1# 

2# The Python Imaging Library. 

3# $Id$ 

4# 

5# PCD file handling 

6# 

7# History: 

8# 96-05-10 fl Created 

9# 96-05-27 fl Added draft mode (128x192, 256x384) 

10# 

11# Copyright (c) Secret Labs AB 1997. 

12# Copyright (c) Fredrik Lundh 1996. 

13# 

14# See the README file for information on usage and redistribution. 

15# 

16 

17 

18from . import Image, ImageFile 

19 

20## 

21# Image plugin for PhotoCD images. This plugin only reads the 768x512 

22# image from the file; higher resolutions are encoded in a proprietary 

23# encoding. 

24 

25 

26class PcdImageFile(ImageFile.ImageFile): 

27 

28 format = "PCD" 

29 format_description = "Kodak PhotoCD" 

30 

31 def _open(self): 

32 

33 # rough 

34 self.fp.seek(2048) 

35 s = self.fp.read(2048) 

36 

37 if s[:4] != b"PCD_": 

38 raise SyntaxError("not a PCD file") 

39 

40 orientation = s[1538] & 3 

41 self.tile_post_rotate = None 

42 if orientation == 1: 

43 self.tile_post_rotate = 90 

44 elif orientation == 3: 

45 self.tile_post_rotate = -90 

46 

47 self.mode = "RGB" 

48 self._size = 768, 512 # FIXME: not correct for rotated images! 

49 self.tile = [("pcd", (0, 0) + self.size, 96 * 2048, None)] 

50 

51 def load_end(self): 

52 if self.tile_post_rotate: 

53 # Handle rotated PCDs 

54 self.im = self.im.rotate(self.tile_post_rotate) 

55 self._size = self.im.size 

56 

57 

58# 

59# registry 

60 

61Image.register_open(PcdImageFile.format, PcdImageFile) 

62 

63Image.register_extension(PcdImageFile.format, ".pcd")