Gecko [ gtgates.com ]

Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2024-07-04 11:33
BdfFontFile.py	3.29 KB	-rw-r--r--	2018-04-12 21:15
BlpImagePlugin.py	14.26 KB	-rw-r--r--	2024-07-03 09:03
BmpImagePlugin.py	12.83 KB	-rw-r--r--	2018-04-12 21:15
BufrStubImagePlugin.py	1.48 KB	-rw-r--r--	2018-04-12 21:15
ContainerIO.py	2.63 KB	-rw-r--r--	2018-04-12 21:15
CurImagePlugin.py	2.02 KB	-rw-r--r--	2018-04-12 21:15
DcxImagePlugin.py	1.98 KB	-rw-r--r--	2018-04-12 21:15
DdsImagePlugin.py	4.88 KB	-rw-r--r--	2018-04-12 21:15
EpsImagePlugin.py	12.59 KB	-rw-r--r--	2024-07-03 09:03
ExifTags.py	8.63 KB	-rw-r--r--	2018-04-12 21:15
FitsStubImagePlugin.py	1.58 KB	-rw-r--r--	2018-04-12 21:15
FliImagePlugin.py	4 KB	-rw-r--r--	2018-04-12 21:15
FontFile.py	2.77 KB	-rw-r--r--	2018-04-12 21:15
FpxImagePlugin.py	6.23 KB	-rw-r--r--	2018-04-12 21:15
FtexImagePlugin.py	3.19 KB	-rw-r--r--	2018-04-12 21:15
GbrImagePlugin.py	2.66 KB	-rw-r--r--	2018-04-12 21:15
GdImageFile.py	2.15 KB	-rw-r--r--	2018-04-12 21:15
GifImagePlugin.py	26.11 KB	-rw-r--r--	2024-07-03 09:03
GimpGradientFile.py	3.27 KB	-rw-r--r--	2018-04-12 21:15
GimpPaletteFile.py	1.31 KB	-rw-r--r--	2018-04-12 21:15
GribStubImagePlugin.py	1.5 KB	-rw-r--r--	2018-04-12 21:15
Hdf5StubImagePlugin.py	1.48 KB	-rw-r--r--	2018-04-12 21:15
IcnsImagePlugin.py	10.82 KB	-rw-r--r--	2024-07-03 09:03
IcoImagePlugin.py	9.22 KB	-rw-r--r--	2024-07-03 09:03
ImImagePlugin.py	9.92 KB	-rw-r--r--	2018-04-12 21:15
Image.py	93.16 KB	-rw-r--r--	2018-04-12 21:15
ImageChops.py	6.04 KB	-rw-r--r--	2018-04-12 21:15
ImageCms.py	35.76 KB	-rw-r--r--	2018-04-12 21:15
ImageColor.py	8.05 KB	-rw-r--r--	2018-04-12 21:15
ImageDraw.py	13.32 KB	-rw-r--r--	2018-04-12 21:15
ImageDraw2.py	3.15 KB	-rw-r--r--	2018-04-12 21:15
ImageEnhance.py	3.12 KB	-rw-r--r--	2018-04-12 21:15
ImageFile.py	20.27 KB	-rw-r--r--	2024-07-03 09:03
ImageFilter.py	7.23 KB	-rw-r--r--	2018-04-12 21:15
ImageFont.py	20.66 KB	-rw-r--r--	2024-07-03 09:03
ImageGrab.py	2.1 KB	-rw-r--r--	2018-04-12 21:15
ImageMath.py	7.83 KB	-rw-r--r--	2024-07-03 09:03
ImageMode.py	1.52 KB	-rw-r--r--	2018-04-12 21:15
ImageMorph.py	8.12 KB	-rw-r--r--	2018-04-12 21:15
ImageOps.py	15.73 KB	-rw-r--r--	2018-04-12 21:15
ImagePalette.py	6.17 KB	-rw-r--r--	2018-04-12 21:15
ImagePath.py	1.26 KB	-rw-r--r--	2018-04-12 21:15
ImageSequence.py	1.21 KB	-rw-r--r--	2018-04-12 21:15
ImageShow.py	5.14 KB	-rw-r--r--	2018-04-12 21:15
ImageStat.py	3.76 KB	-rw-r--r--	2018-04-12 21:15
ImageTransform.py	2.74 KB	-rw-r--r--	2018-04-12 21:15
ImageWin.py	7 KB	-rw-r--r--	2018-04-12 21:15
ImtImagePlugin.py	2.19 KB	-rw-r--r--	2018-04-12 21:15
IptcImagePlugin.py	6.64 KB	-rw-r--r--	2018-04-12 21:15
Jpeg2KImagePlugin.py	7.55 KB	-rw-r--r--	2018-04-12 21:15
JpegImagePlugin.py	26.98 KB	-rw-r--r--	2018-04-12 21:15
JpegPresets.py	12.11 KB	-rw-r--r--	2018-04-12 21:15
McIdasImagePlugin.py	1.73 KB	-rw-r--r--	2018-04-12 21:15
MicImagePlugin.py	2.4 KB	-rw-r--r--	2018-04-12 21:15
MpegImagePlugin.py	1.79 KB	-rw-r--r--	2018-04-12 21:15
MpoImagePlugin.py	2.91 KB	-rw-r--r--	2018-04-12 21:15
MspImagePlugin.py	5.39 KB	-rw-r--r--	2018-04-12 21:15
OleFileIO.py	152 B	-rw-r--r--	2018-04-12 21:15
PSDraw.py	6.69 KB	-rw-r--r--	2018-04-12 21:15
PaletteFile.py	1.08 KB	-rw-r--r--	2018-04-12 21:15
PalmImagePlugin.py	8.94 KB	-rw-r--r--	2018-04-12 21:15
PcdImagePlugin.py	1.48 KB	-rw-r--r--	2018-04-12 21:15
PcfFontFile.py	5.99 KB	-rw-r--r--	2018-04-12 21:15
PcxImagePlugin.py	5.29 KB	-rw-r--r--	2024-07-03 09:03
PdfImagePlugin.py	7.16 KB	-rw-r--r--	2018-04-12 21:15
PdfParser.py	32.64 KB	-rw-r--r--	2024-07-03 09:03
PixarImagePlugin.py	1.63 KB	-rw-r--r--	2018-04-12 21:15
PngImagePlugin.py	25.09 KB	-rw-r--r--	2018-04-12 21:15
PpmImagePlugin.py	4.11 KB	-rw-r--r--	2018-04-12 21:15
PsdImagePlugin.py	7.76 KB	-rw-r--r--	2024-07-03 09:03
PyAccess.py	8.61 KB	-rw-r--r--	2018-04-12 21:15
SgiImagePlugin.py	5.97 KB	-rw-r--r--	2018-04-12 21:15
SunImagePlugin.py	4.22 KB	-rw-r--r--	2018-04-12 21:15
TarIO.py	1.21 KB	-rw-r--r--	2018-04-12 21:15
TgaImagePlugin.py	4.88 KB	-rw-r--r--	2018-04-12 21:15
TiffImagePlugin.py	63.49 KB	-rw-r--r--	2024-07-03 09:03
TiffTags.py	14.1 KB	-rw-r--r--	2018-04-12 21:15
WalImageFile.py	5.43 KB	-rw-r--r--	2018-04-12 21:15
WebPImagePlugin.py	9.45 KB	-rw-r--r--	2018-04-12 21:15
WmfImagePlugin.py	4.15 KB	-rw-r--r--	2018-04-12 21:15
XVThumbImagePlugin.py	1.91 KB	-rw-r--r--	2018-04-12 21:15
XbmImagePlugin.py	2.45 KB	-rw-r--r--	2018-04-12 21:15
XpmImagePlugin.py	3.03 KB	-rw-r--r--	2018-04-12 21:15
__init__.py	1.66 KB	-rw-r--r--	2018-04-12 21:15
_binary.py	1.75 KB	-rw-r--r--	2018-04-12 21:15
_imaging.cpython-36m-x86_64-linux-gnu.so	391.95 KB	-rwxr-xr-x	2024-07-03 09:03
_imagingcms.cpython-36m-x86_64-linux-gnu.so	35.89 KB	-rwxr-xr-x	2024-07-03 09:03
_imagingft.cpython-36m-x86_64-linux-gnu.so	30.39 KB	-rwxr-xr-x	2024-07-03 09:03
_imagingmath.cpython-36m-x86_64-linux-gnu.so	20.16 KB	-rwxr-xr-x	2024-07-03 09:03
_imagingmorph.cpython-36m-x86_64-linux-gnu.so	11.84 KB	-rwxr-xr-x	2024-07-03 09:03
_tkinter_finder.py	702 B	-rw-r--r--	2018-04-12 21:15
_util.py	553 B	-rw-r--r--	2018-04-12 21:15
_webp.cpython-36m-x86_64-linux-gnu.so	25.16 KB	-rwxr-xr-x	2024-07-03 09:03
features.py	1.83 KB	-rw-r--r--	2018-04-12 21:15
version.py	50 B	-rw-r--r--	2018-04-12 21:15

Rename

#
# The Python Imaging Library.
# $Id$
#
# SGI image file handling
#
# See "The SGI Image File Format (Draft version 0.97)", Paul Haeberli.
# <ftp://ftp.sgi.com/graphics/SGIIMAGESPEC>
#
#
# History:
# 2017-22-07 mb   Add RLE decompression
# 2016-16-10 mb   Add save method without compression
# 1995-09-10 fl   Created
#
# Copyright (c) 2016 by Mickael Bonfill.
# Copyright (c) 2008 by Karsten Hiddemann.
# Copyright (c) 1997 by Secret Labs AB.
# Copyright (c) 1995 by Fredrik Lundh.
#
# See the README file for information on usage and redistribution.
#

from . import Image, ImageFile
from ._binary import i8, o8, i16be as i16
import struct
import os

__version__ = "0.3"

def _accept(prefix):
    return len(prefix) >= 2 and i16(prefix) == 474

MODES = {
    (1, 1, 1): "L",
    (1, 2, 1): "L",
    (2, 1, 1): "L;16B",
    (2, 2, 1): "L;16B",
    (1, 3, 3): "RGB",
    (2, 3, 3): "RGB;16B",
    (1, 3, 4): "RGBA",
    (2, 3, 4): "RGBA;16B"
}

##
# Image plugin for SGI images.
class SgiImageFile(ImageFile.ImageFile):

format = "SGI"
    format_description = "SGI Image File Format"

def _open(self):

# HEAD
        headlen = 512
        s = self.fp.read(headlen)

# magic number : 474
        if i16(s) != 474:
            raise ValueError("Not an SGI image file")

# compression : verbatim or RLE
        compression = i8(s[2])

# bpc : 1 or 2 bytes (8bits or 16bits)
        bpc = i8(s[3])

# dimension : 1, 2 or 3 (depending on xsize, ysize and zsize)
        dimension = i16(s[4:])

# xsize : width
        xsize = i16(s[6:])

# ysize : height
        ysize = i16(s[8:])

# zsize : channels count
        zsize = i16(s[10:])

# layout
        layout = bpc, dimension, zsize

# determine mode from bits/zsize
        rawmode = ""
        try:
            rawmode = MODES[layout]
        except KeyError:
            pass

if rawmode == "":
            raise ValueError("Unsupported SGI image mode")

self.size = xsize, ysize
        self.mode = rawmode.split(";")[0]

# orientation -1 : scanlines begins at the bottom-left corner
        orientation = -1

# decoder info
        if compression == 0:
            pagesize = xsize * ysize * bpc
            if bpc == 2:
                self.tile = [("SGI16", (0, 0) + self.size,
                              headlen, (self.mode, 0, orientation))]
            else:
                self.tile = []
                offset = headlen
                for layer in self.mode:
                    self.tile.append(
                        ("raw", (0, 0) + self.size,
                            offset, (layer, 0, orientation)))
                    offset += pagesize
        elif compression == 1:
            self.tile = [("sgi_rle", (0, 0) + self.size,
                          headlen, (rawmode, orientation, bpc))]

def _save(im, fp, filename):
    if im.mode != "RGB" and im.mode != "RGBA" and im.mode != "L":
        raise ValueError("Unsupported SGI image mode")

# Get the keyword arguments
    info = im.encoderinfo

# Byte-per-pixel precision, 1 = 8bits per pixel
    bpc = info.get("bpc", 1)

if bpc not in (1, 2):
        raise ValueError("Unsupported number of bytes per pixel")

# Flip the image, since the origin of SGI file is the bottom-left corner
    orientation = -1
    # Define the file as SGI File Format
    magicNumber = 474
    # Run-Length Encoding Compression - Unsupported at this time
    rle = 0

# Number of dimensions (x,y,z)
    dim = 3
    # X Dimension = width / Y Dimension = height
    x, y = im.size
    if im.mode == "L" and y == 1:
        dim = 1
    elif im.mode == "L":
        dim = 2
    # Z Dimension: Number of channels
    z = len(im.mode)

if dim == 1 or dim == 2:
        z = 1

# assert we've got the right number of bands.
    if len(im.getbands()) != z:
        raise ValueError("incorrect number of bands in SGI write: %s vs %s" %
                         (z, len(im.getbands())))

# Minimum Byte value
    pinmin = 0
    # Maximum Byte value (255 = 8bits per pixel)
    pinmax = 255
    # Image name (79 characters max, truncated below in write)
    imgName = os.path.splitext(os.path.basename(filename))[0]
    if str is not bytes:
        imgName = imgName.encode('ascii', 'ignore')
    # Standard representation of pixel in the file
    colormap = 0
    fp.write(struct.pack('>h', magicNumber))
    fp.write(o8(rle))
    fp.write(o8(bpc))
    fp.write(struct.pack('>H', dim))
    fp.write(struct.pack('>H', x))
    fp.write(struct.pack('>H', y))
    fp.write(struct.pack('>H', z))
    fp.write(struct.pack('>l', pinmin))
    fp.write(struct.pack('>l', pinmax))
    fp.write(struct.pack('4s', b''))  # dummy
    fp.write(struct.pack('79s', imgName))  # truncates to 79 chars
    fp.write(struct.pack('s', b''))  # force null byte after imgname
    fp.write(struct.pack('>l', colormap))
    fp.write(struct.pack('404s', b''))  # dummy

rawmode = 'L'
    if bpc == 2:
        rawmode = 'L;16B'

for channel in im.split():
        fp.write(channel.tobytes('raw', rawmode, 0, orientation))

fp.close()

class SGI16Decoder(ImageFile.PyDecoder):
    _pulls_fd = True

def decode(self, buffer):
        rawmode, stride, orientation = self.args
        pagesize = self.state.xsize * self.state.ysize
        zsize = len(self.mode)
        self.fd.seek(512)

for band in range(zsize):
            channel = Image.new('L', (self.state.xsize, self.state.ysize))
            channel.frombytes(self.fd.read(2 * pagesize), 'raw',
                              'L;16B', stride, orientation)
            self.im.putband(channel.im, band)

return -1, 0

#
# registry

Image.register_decoder("SGI16", SGI16Decoder)
Image.register_open(SgiImageFile.format, SgiImageFile, _accept)
Image.register_save(SgiImageFile.format, _save)
Image.register_mime(SgiImageFile.format, "image/sgi")
Image.register_mime(SgiImageFile.format, "image/rgb")

Image.register_extensions(SgiImageFile.format, [".bw", ".rgb", ".rgba", ".sgi"])

# End of file