Gecko [ www.utparral.edu.mx ]

Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
BdfFontFile.py	2.75 KB	-rw-r--r--
_binary.py	2 KB	-rw-r--r--
BlpImagePlugin.py	14.23 KB	-rw-r--r--
BmpImagePlugin.py	13.91 KB	-rw-r--r--
BufrStubImagePlugin.py	1.48 KB	-rw-r--r--
ContainerIO.py	2.82 KB	-rw-r--r--
CurImagePlugin.py	1.64 KB	-rw-r--r--
DcxImagePlugin.py	2.09 KB	-rw-r--r--
DdsImagePlugin.py	7.8 KB	-rw-r--r--
EpsImagePlugin.py	11.64 KB	-rw-r--r--
ExifTags.py	9.22 KB	-rw-r--r--
features.py	9.17 KB	-rw-r--r--
FitsStubImagePlugin.py	2.5 KB	-rw-r--r--
FliImagePlugin.py	4.16 KB	-rw-r--r--
FontFile.py	2.7 KB	-rw-r--r--
FpxImagePlugin.py	6.5 KB	-rw-r--r--
FtexImagePlugin.py	3.23 KB	-rw-r--r--
GbrImagePlugin.py	2.73 KB	-rw-r--r--
GdImageFile.py	2.41 KB	-rw-r--r--
GifImagePlugin.py	32.05 KB	-rw-r--r--
GimpGradientFile.py	3.27 KB	-rw-r--r--
GimpPaletteFile.py	1.24 KB	-rw-r--r--
GribStubImagePlugin.py	1.48 KB	-rw-r--r--
Hdf5StubImagePlugin.py	1.48 KB	-rw-r--r--
IcnsImagePlugin.py	11.46 KB	-rw-r--r--
IcoImagePlugin.py	10.57 KB	-rw-r--r--
ImageChops.py	7.13 KB	-rw-r--r--
ImageCms.py	36.22 KB	-rw-r--r--
ImageColor.py	8.52 KB	-rw-r--r--
ImageDraw2.py	4.9 KB	-rw-r--r--
ImageDraw.py	33.9 KB	-rw-r--r--
ImageEnhance.py	3.12 KB	-rw-r--r--
ImageFile.py	20.58 KB	-rw-r--r--
ImageFilter.py	15.75 KB	-rw-r--r--
ImageFont.py	44.29 KB	-rw-r--r--
ImageGrab.py	3.54 KB	-rw-r--r--
ImageMath.py	7.44 KB	-rw-r--r--
ImageMode.py	2.03 KB	-rw-r--r--
ImageMorph.py	7.59 KB	-rw-r--r--
ImageOps.py	19.82 KB	-rw-r--r--
ImagePalette.py	7.66 KB	-rw-r--r--
ImagePath.py	336 B	-rw-r--r--
Image.py	118.51 KB	-rw-r--r--
ImageQt.py	6.54 KB	-rw-r--r--
ImageSequence.py	1.81 KB	-rw-r--r--
ImageShow.py	7.75 KB	-rw-r--r--
ImageStat.py	3.81 KB	-rw-r--r--
ImageTransform.py	2.78 KB	-rw-r--r--
ImageWin.py	7.02 KB	-rw-r--r--
_imagingcms.cpython-310-x86_64-linux-gnu.so	37.8 KB	-rw-r--r--
_imaging.cpython-310-x86_64-linux-gnu.so	438.53 KB	-rw-r--r--
_imagingft.cpython-310-x86_64-linux-gnu.so	41.46 KB	-rw-r--r--
_imagingmath.cpython-310-x86_64-linux-gnu.so	18.43 KB	-rw-r--r--
_imagingmorph.cpython-310-x86_64-linux-gnu.so	14.46 KB	-rw-r--r--
ImImagePlugin.py	10.48 KB	-rw-r--r--
ImtImagePlugin.py	2.15 KB	-rw-r--r--
__init__.py	1.7 KB	-rw-r--r--
IptcImagePlugin.py	5.58 KB	-rw-r--r--
Jpeg2KImagePlugin.py	10.14 KB	-rw-r--r--
JpegImagePlugin.py	27.79 KB	-rw-r--r--
JpegPresets.py	12.06 KB	-rw-r--r--
__main__.py	41 B	-rw-r--r--
McIdasImagePlugin.py	1.71 KB	-rw-r--r--
MicImagePlugin.py	2.55 KB	-rw-r--r--
MpegImagePlugin.py	1.76 KB	-rw-r--r--
MpoImagePlugin.py	4.3 KB	-rw-r--r--
MspImagePlugin.py	5.4 KB	-rw-r--r--
PaletteFile.py	1.08 KB	-rw-r--r--
PalmImagePlugin.py	8.89 KB	-rw-r--r--
PcdImagePlugin.py	1.44 KB	-rw-r--r--
PcfFontFile.py	6.2 KB	-rw-r--r--
PcxImagePlugin.py	5.73 KB	-rw-r--r--
PdfImagePlugin.py	7.16 KB	-rw-r--r--
PdfParser.py	33.75 KB	-rw-r--r--
PixarImagePlugin.py	1.59 KB	-rw-r--r--
PngImagePlugin.py	43.11 KB	-rw-r--r--
PpmImagePlugin.py	4.34 KB	-rw-r--r--
PsdImagePlugin.py	7.88 KB	-rw-r--r--
PSDraw.py	6.56 KB	-rw-r--r--
PyAccess.py	9.38 KB	-rw-r--r--
SgiImagePlugin.py	5.95 KB	-rw-r--r--
SpiderImagePlugin.py	9.31 KB	-rw-r--r--
SunImagePlugin.py	4.18 KB	-rw-r--r--
TarIO.py	1.41 KB	-rw-r--r--
TgaImagePlugin.py	6.32 KB	-rw-r--r--
TiffImagePlugin.py	71.17 KB	-rw-r--r--
TiffTags.py	14.93 KB	-rw-r--r--
_tkinter_finder.py	525 B	-rw-r--r--
_util.py	359 B	-rw-r--r--
_version.py	50 B	-rw-r--r--
WalImageFile.py	5.42 KB	-rw-r--r--
_webp.cpython-310-x86_64-linux-gnu.so	28.09 KB	-rw-r--r--
WebPImagePlugin.py	10.58 KB	-rw-r--r--
WmfImagePlugin.py	4.53 KB	-rw-r--r--
XbmImagePlugin.py	2.37 KB	-rw-r--r--
XpmImagePlugin.py	2.99 KB	-rw-r--r--
XVThumbImagePlugin.py	1.89 KB	-rw-r--r--

Code Editor : SgiImagePlugin.py

#
# 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.
#

import os
import struct

from . import Image, ImageFile
from ._binary import i16be as i16
from ._binary import o8

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)

if not _accept(s):
            raise ValueError("Not an SGI image file")

# compression : verbatim or RLE
        compression = s[2]

# bpc : 1 or 2 bytes (8bits or 16bits)
        bpc = 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]
        if self.mode == "RGB":
            self.custom_mimetype = "image/rgb"

# 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(
            f"incorrect number of bands in SGI write: {z} vs {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]
    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))

if hasattr(fp, "flush"):
        fp.flush()

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

# End of file

${this.title}

Code Editor : SgiImagePlugin.py