--- PIL/TiffImagePlugin-original.py 2006-10-07 08:55:11.000000000 -0700 +++ PIL/TiffImagePlugin-new.py 2006-11-28 23:56:03.000000000 -0800 @@ -74,6 +74,11 @@ return ord(c[o+1]) + (ord(c[o])<<8) def ib32(c,o=0): return ord(c[o+3]) + (ord(c[o+2])<<8) + (ord(c[o+1])<<16) + (ord(c[o])<<24) +def ob16(i): + return chr(i>>8&255) + chr(i&255) +def ob32(i): + return chr(i>>24&255) + chr(i>>16&255) + chr(i>>8&255) + chr(i&255) + # a few tag names, just to make the code below a bit more readable IMAGEWIDTH = 256 @@ -117,42 +122,77 @@ } OPEN_INFO = { - # (PhotoInterpretation, SampleFormat, FillOrder, BitsPerSample, - # ExtraSamples) => mode, rawmode - (0, 1, 1, (1,), ()): ("1", "1;I"), - (0, 1, 2, (1,), ()): ("1", "1;IR"), - (0, 1, 1, (8,), ()): ("L", "L;I"), - (0, 1, 2, (8,), ()): ("L", "L;IR"), - (1, 1, 1, (1,), ()): ("1", "1"), - (1, 1, 2, (1,), ()): ("1", "1;R"), - (1, 1, 1, (8,), ()): ("L", "L"), - (1, 1, 1, (8,8), (2,)): ("LA", "LA"), - (1, 1, 2, (8,), ()): ("L", "L;R"), - (1, 1, 1, (16,), ()): ("I;16", "I;16"), - (1, 2, 1, (16,), ()): ("I;16S", "I;16S"), - (1, 2, 1, (32,), ()): ("I", "I;32S"), - (1, 3, 1, (32,), ()): ("F", "F;32F"), - (2, 1, 1, (8,8,8), ()): ("RGB", "RGB"), - (2, 1, 2, (8,8,8), ()): ("RGB", "RGB;R"), - (2, 1, 1, (8,8,8,8), (0,)): ("RGBX", "RGBX"), - (2, 1, 1, (8,8,8,8), (1,)): ("RGBA", "RGBa"), - (2, 1, 1, (8,8,8,8), (2,)): ("RGBA", "RGBA"), - (2, 1, 1, (8,8,8,8), (999,)): ("RGBA", "RGBA"), # corel draw 10 - (3, 1, 1, (1,), ()): ("P", "P;1"), - (3, 1, 2, (1,), ()): ("P", "P;1R"), - (3, 1, 1, (2,), ()): ("P", "P;2"), - (3, 1, 2, (2,), ()): ("P", "P;2R"), - (3, 1, 1, (4,), ()): ("P", "P;4"), - (3, 1, 2, (4,), ()): ("P", "P;4R"), - (3, 1, 1, (8,), ()): ("P", "P"), - (3, 1, 1, (8,8), (2,)): ("PA", "PA"), - (3, 1, 2, (8,), ()): ("P", "P;R"), - (5, 1, 1, (8,8,8,8), ()): ("CMYK", "CMYK"), - (6, 1, 1, (8,8,8), ()): ("YCbCr", "YCbCr"), - (8, 1, 1, (8,8,8), ()): ("LAB", "LAB"), + # (ByteOrder, PhotoInterpretation, SampleFormat, FillOrder, BitsPerSample, + # ExtraSamples) => mode, rawmode + ('l', 0, 1, 1, (1,), ()): ("1", "1;I"), + ('l', 0, 1, 2, (1,), ()): ("1", "1;IR"), + ('l', 0, 1, 1, (8,), ()): ("L", "L;I"), + ('l', 0, 1, 2, (8,), ()): ("L", "L;IR"), + ('l', 1, 1, 1, (1,), ()): ("1", "1"), + ('l', 1, 1, 2, (1,), ()): ("1", "1;R"), + ('l', 1, 1, 1, (8,), ()): ("L", "L"), + ('l', 1, 1, 1, (8,8), (2,)): ("LA", "LA"), + ('l', 1, 1, 2, (8,), ()): ("L", "L;R"), + ('l', 1, 1, 1, (16,), ()): ("I;16", "I;16"), + ('l', 1, 2, 1, (16,), ()): ("I;16S", "I;16S"), + ('l', 1, 2, 1, (32,), ()): ("I", "I;32S"), + ('l', 1, 3, 1, (32,), ()): ("F", "F;32F"), + ('l', 2, 1, 1, (8,8,8), ()): ("RGB", "RGB"), + ('l', 2, 1, 2, (8,8,8), ()): ("RGB", "RGB;R"), + ('l', 2, 1, 1, (8,8,8,8), (0,)): ("RGBX", "RGBX"), + ('l', 2, 1, 1, (8,8,8,8), (1,)): ("RGBA", "RGBa"), + ('l', 2, 1, 1, (8,8,8,8), (2,)): ("RGBA", "RGBA"), + ('l', 2, 1, 1, (8,8,8,8), (999,)): ("RGBA", "RGBA"), # corel draw 10 + ('l', 3, 1, 1, (1,), ()): ("P", "P;1"), + ('l', 3, 1, 2, (1,), ()): ("P", "P;1R"), + ('l', 3, 1, 1, (2,), ()): ("P", "P;2"), + ('l', 3, 1, 2, (2,), ()): ("P", "P;2R"), + ('l', 3, 1, 1, (4,), ()): ("P", "P;4"), + ('l', 3, 1, 2, (4,), ()): ("P", "P;4R"), + ('l', 3, 1, 1, (8,), ()): ("P", "P"), + ('l', 3, 1, 1, (8,8), (2,)): ("PA", "PA"), + ('l', 3, 1, 2, (8,), ()): ("P", "P;R"), + ('l', 5, 1, 1, (8,8,8,8), ()): ("CMYK", "CMYK"), + ('l', 6, 1, 1, (8,8,8), ()): ("YCbCr", "YCbCr"), + ('l', 8, 1, 1, (8,8,8), ()): ("LAB", "LAB"), + + ('b', 0, 1, 1, (1,), ()): ("1", "1;I"), + ('b', 0, 1, 2, (1,), ()): ("1", "1;IR"), + ('b', 0, 1, 1, (8,), ()): ("L", "L;I"), + ('b', 0, 1, 2, (8,), ()): ("L", "L;IR"), + ('b', 1, 1, 1, (1,), ()): ("1", "1"), + ('b', 1, 1, 2, (1,), ()): ("1", "1;R"), + ('b', 1, 1, 1, (8,), ()): ("L", "L"), + ('b', 1, 1, 1, (8,8), (2,)): ("LA", "LA"), + ('b', 1, 1, 2, (8,), ()): ("L", "L;R"), + ('b', 1, 1, 1, (16,), ()): ("I;16B", "I;16B"), + ('b', 1, 2, 1, (16,), ()): ("I;16BS", "I;16BS"), + ('b', 1, 2, 1, (32,), ()): ("I;32BS", "I;32BS"), + ('b', 1, 3, 1, (32,), ()): ("F;32BF", "F;32BF"), + ('b', 2, 1, 1, (8,8,8), ()): ("RGB", "RGB"), + ('b', 2, 1, 2, (8,8,8), ()): ("RGB", "RGB;R"), + ('b', 2, 1, 1, (8,8,8,8), (0,)): ("RGBX", "RGBX"), + ('b', 2, 1, 1, (8,8,8,8), (1,)): ("RGBA", "RGBa"), + ('b', 2, 1, 1, (8,8,8,8), (2,)): ("RGBA", "RGBA"), + ('b', 2, 1, 1, (8,8,8,8), (999,)): ("RGBA", "RGBA"), # corel draw 10 + ('b', 3, 1, 1, (1,), ()): ("P", "P;1"), + ('b', 3, 1, 2, (1,), ()): ("P", "P;1R"), + ('b', 3, 1, 1, (2,), ()): ("P", "P;2"), + ('b', 3, 1, 2, (2,), ()): ("P", "P;2R"), + ('b', 3, 1, 1, (4,), ()): ("P", "P;4"), + ('b', 3, 1, 2, (4,), ()): ("P", "P;4R"), + ('b', 3, 1, 1, (8,), ()): ("P", "P"), + ('b', 3, 1, 1, (8,8), (2,)): ("PA", "PA"), + ('b', 3, 1, 2, (8,), ()): ("P", "P;R"), + ('b', 5, 1, 1, (8,8,8,8), ()): ("CMYK", "CMYK"), + ('b', 6, 1, 1, (8,8,8), ()): ("YCbCr", "YCbCr"), + ('b', 8, 1, 1, (8,8,8), ()): ("LAB", "LAB"), + } PREFIXES = ["MM\000\052", "II\052\000", "II\xBC\000"] +PREFIX_TO_BYTEORDER = {"MM":"b", "II":"l"} +BYTEORDER_TO_PREFIX = {"b":"MM", "l":"II"} def _accept(prefix): return prefix[:4] in PREFIXES @@ -165,16 +205,17 @@ # represents a TIFF tag directory. to speed things up, # we don't decode tags unless they're asked for. - def __init__(self, prefix="II"): + def __init__(self, prefix): self.prefix = prefix[:2] if self.prefix == "MM": self.i16, self.i32 = ib16, ib32 - # FIXME: save doesn't yet support big-endian mode... + self.o16, self.o32 = ob16, ob32 elif self.prefix == "II": self.i16, self.i32 = il16, il32 self.o16, self.o32 = ol16, ol32 else: raise SyntaxError("not a TIFF IFD") + self.byteorder = PREFIX_TO_BYTEORDER[self.prefix] self.reset() def reset(self): @@ -555,7 +596,7 @@ # mode: check photometric interpretation and bits per pixel key = ( - photo, format, fillorder, + self.tag.byteorder, photo, format, fillorder, self.tag.get(BITSPERSAMPLE, (1,)), self.tag.get(EXTRASAMPLES, ()) ) @@ -637,25 +678,30 @@ # -------------------------------------------------------------------- # Write TIFF files -# little endian is default +# little endian is default except for image modes with explict big endian byte-order SAVE_INFO = { - # mode => rawmode, photometrics, sampleformat, bitspersample, extra - "1": ("1", 1, 1, (1,), None), - "L": ("L", 1, 1, (8,), None), - "LA": ("LA", 1, 1, (8,8), 2), - "P": ("P", 3, 1, (8,), None), - "PA": ("PA", 3, 1, (8,8), 2), - "I": ("I;32S", 1, 2, (32,), None), - "I;16": ("I;16", 1, 1, (16,), None), - "I;16S": ("I;16S", 1, 2, (16,), None), - "F": ("F;32F", 1, 3, (32,), None), - "RGB": ("RGB", 2, 1, (8,8,8), None), - "RGBX": ("RGBX", 2, 1, (8,8,8,8), 0), - "RGBA": ("RGBA", 2, 1, (8,8,8,8), 2), - "CMYK": ("CMYK", 5, 1, (8,8,8,8), None), - "YCbCr": ("YCbCr", 6, 1, (8,8,8), None), - "LAB": ("LAB", 8, 1, (8,8,8), None), + # mode => rawmode, byteorder, photometrics, sampleformat, bitspersample, extra + "1": ("1", 'l', 1, 1, (1,), None), + "L": ("L", 'l', 1, 1, (8,), None), + "LA": ("LA", 'l', 1, 1, (8,8), 2), + "P": ("P", 'l', 3, 1, (8,), None), + "PA": ("PA", 'l', 3, 1, (8,8), 2), + "I": ("I;32S", 'l', 1, 2, (32,), None), + "I;16": ("I;16", 'l', 1, 1, (16,), None), + "I;16S": ("I;16S", 'l', 1, 2, (16,), None), + "F": ("F;32F", 'l', 1, 3, (32,), None), + "RGB": ("RGB", 'l', 2, 1, (8,8,8), None), + "RGBX": ("RGBX", 'l', 2, 1, (8,8,8,8), 0), + "RGBA": ("RGBA", 'l', 2, 1, (8,8,8,8), 2), + "CMYK": ("CMYK", 'l', 5, 1, (8,8,8,8), None), + "YCbCr": ("YCbCr", 'l', 6, 1, (8,8,8), None), + "LAB": ("LAB", 'l', 8, 1, (8,8,8), None), + + "I;32BS": ("I;32BS", 'b', 1, 2, (32,), None), + "I;16B": ("I;16B", 'b', 1, 1, (16,), None), + "I;16BS": ("I;16BS", 'b', 1, 2, (16,), None), + "F;32BF": ("F;32BF", 'b', 1, 3, (32,), None), } def _cvt_res(value): @@ -671,11 +717,11 @@ def _save(im, fp, filename): try: - rawmode, photo, format, bits, extra = SAVE_INFO[im.mode] + rawmode, byteorder, photo, format, bits, extra = SAVE_INFO[im.mode] except KeyError: raise IOError, "cannot write mode %s as TIFF" % im.mode - ifd = ImageFileDirectory() + ifd = ImageFileDirectory(BYTEORDER_TO_PREFIX[byteorder]) # tiff header (write via IFD to get everything right) fp.write(ifd.prefix + ifd.o16(42) + ifd.o32(8))