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 : PcxImagePlugin.py

#
# The Python Imaging Library.
# $Id$
#
# PCX file handling
#
# This format was originally used by ZSoft's popular PaintBrush
# program for the IBM PC.  It is also supported by many MS-DOS and
# Windows applications, including the Windows PaintBrush program in
# Windows 3.
#
# history:
# 1995-09-01 fl   Created
# 1996-05-20 fl   Fixed RGB support
# 1997-01-03 fl   Fixed 2-bit and 4-bit support
# 1999-02-03 fl   Fixed 8-bit support (broken in 1.0b1)
# 1999-02-07 fl   Added write support
# 2002-06-09 fl   Made 2-bit and 4-bit support a bit more robust
# 2002-07-30 fl   Seek from to current position, not beginning of file
# 2003-06-03 fl   Extract DPI settings (info["dpi"])
#
# Copyright (c) 1997-2003 by Secret Labs AB.
# Copyright (c) 1995-2003 by Fredrik Lundh.
#
# See the README file for information on usage and redistribution.
#

import io
import logging

from . import Image, ImageFile, ImagePalette
from ._binary import i16le as i16
from ._binary import o8
from ._binary import o16le as o16

logger = logging.getLogger(__name__)

def _accept(prefix):
    return prefix[0] == 10 and prefix[1] in [0, 2, 3, 5]

##
# Image plugin for Paintbrush images.

class PcxImageFile(ImageFile.ImageFile):

format = "PCX"
    format_description = "Paintbrush"

def _open(self):

# header
        s = self.fp.read(128)
        if not _accept(s):
            raise SyntaxError("not a PCX file")

# image
        bbox = i16(s, 4), i16(s, 6), i16(s, 8) + 1, i16(s, 10) + 1
        if bbox[2] <= bbox[0] or bbox[3] <= bbox[1]:
            raise SyntaxError("bad PCX image size")
        logger.debug("BBox: %s %s %s %s", *bbox)

# format
        version = s[1]
        bits = s[3]
        planes = s[65]
        provided_stride = i16(s, 66)
        logger.debug(
            "PCX version %s, bits %s, planes %s, stride %s",
            version,
            bits,
            planes,
            provided_stride,
        )

self.info["dpi"] = i16(s, 12), i16(s, 14)

if bits == 1 and planes == 1:
            mode = rawmode = "1"

elif bits == 1 and planes in (2, 4):
            mode = "P"
            rawmode = "P;%dL" % planes
            self.palette = ImagePalette.raw("RGB", s[16:64])

elif version == 5 and bits == 8 and planes == 1:
            mode = rawmode = "L"
            # FIXME: hey, this doesn't work with the incremental loader !!!
            self.fp.seek(-769, io.SEEK_END)
            s = self.fp.read(769)
            if len(s) == 769 and s[0] == 12:
                # check if the palette is linear greyscale
                for i in range(256):
                    if s[i * 3 + 1 : i * 3 + 4] != o8(i) * 3:
                        mode = rawmode = "P"
                        break
                if mode == "P":
                    self.palette = ImagePalette.raw("RGB", s[1:])
            self.fp.seek(128)

elif version == 5 and bits == 8 and planes == 3:
            mode = "RGB"
            rawmode = "RGB;L"

else:
            raise OSError("unknown PCX mode")

self.mode = mode
        self._size = bbox[2] - bbox[0], bbox[3] - bbox[1]

# Don't trust the passed in stride.
        # Calculate the approximate position for ourselves.
        # CVE-2020-35653
        stride = (self._size[0] * bits + 7) // 8

# While the specification states that this must be even,
        # not all images follow this
        if provided_stride != stride:
            stride += stride % 2

bbox = (0, 0) + self.size
        logger.debug("size: %sx%s", *self.size)

self.tile = [("pcx", bbox, self.fp.tell(), (rawmode, planes * stride))]

# --------------------------------------------------------------------
# save PCX files

SAVE = {
    # mode: (version, bits, planes, raw mode)
    "1": (2, 1, 1, "1"),
    "L": (5, 8, 1, "L"),
    "P": (5, 8, 1, "P"),
    "RGB": (5, 8, 3, "RGB;L"),
}

def _save(im, fp, filename):

try:
        version, bits, planes, rawmode = SAVE[im.mode]
    except KeyError as e:
        raise ValueError(f"Cannot save {im.mode} images as PCX") from e

# bytes per plane
    stride = (im.size[0] * bits + 7) // 8
    # stride should be even
    stride += stride % 2
    # Stride needs to be kept in sync with the PcxEncode.c version.
    # Ideally it should be passed in in the state, but the bytes value
    # gets overwritten.

logger.debug(
        "PcxImagePlugin._save: xwidth: %d, bits: %d, stride: %d",
        im.size[0],
        bits,
        stride,
    )

# under windows, we could determine the current screen size with
    # "Image.core.display_mode()[1]", but I think that's overkill...

screen = im.size

dpi = 100, 100

# PCX header
    fp.write(
        o8(10)
        + o8(version)
        + o8(1)
        + o8(bits)
        + o16(0)
        + o16(0)
        + o16(im.size[0] - 1)
        + o16(im.size[1] - 1)
        + o16(dpi[0])
        + o16(dpi[1])
        + b"\0" * 24
        + b"\xFF" * 24
        + b"\0"
        + o8(planes)
        + o16(stride)
        + o16(1)
        + o16(screen[0])
        + o16(screen[1])
        + b"\0" * 54
    )

assert fp.tell() == 128

ImageFile._save(im, fp, [("pcx", (0, 0) + im.size, 0, (rawmode, bits * planes))])

if im.mode == "P":
        # colour palette
        fp.write(o8(12))
        fp.write(im.im.getpalette("RGB", "RGB"))  # 768 bytes
    elif im.mode == "L":
        # greyscale palette
        fp.write(o8(12))
        for i in range(256):
            fp.write(o8(i) * 3)

# --------------------------------------------------------------------
# registry

Image.register_open(PcxImageFile.format, PcxImageFile, _accept)
Image.register_save(PcxImageFile.format, _save)

Image.register_extension(PcxImageFile.format, ".pcx")

Image.register_mime(PcxImageFile.format, "image/x-pcx")

${this.title}

Code Editor : PcxImagePlugin.py