示例#1
0
        self.mode = "P"
        self.palette = ImagePalette.raw("RGB", string.join(palette, ""))

        self.tile = [("raw", (0, 0)+self.size, self.fp.tell(), ("P", 0, 1))]

    def load_read(self, bytes):

        #
        # load all image data in one chunk

        xsize, ysize = self.size

        s = [None] * ysize

        for i in range(ysize):
            s[i] = string.ljust(self.fp.readline()[1:xsize+1], xsize)

        self.fp = None

        return string.join(s, "")

#
# Registry

Image.register_open("XPM", XpmImageFile, _accept)

Image.register_extension("XPM", ".xpm")

Image.register_mime("XPM", "image/xpm")
    op.write("q %d 0 0 %d 0 0 cm /image Do Q\n" % (int(width * 72.0 / resolution), int(height * 72.0 / resolution)))

    xref[5] = fp.tell()
    _obj(fp, 5, Length=len(op.getvalue()))

    fp.write("stream\n")
    fp.write(op.getvalue())
    fp.write("\nendstream\n")

    _endobj(fp)

    #
    # trailer
    startxref = fp.tell()
    fp.write("xref\n0 %d\n0000000000 65535 f \n" % len(xref))
    for x in xref[1:]:
        fp.write("%010d 00000 n \n" % x)
    fp.write("trailer\n<<\n/Size %d\n/Root 1 0 R\n>>\n" % len(xref))
    fp.write("startxref\n%d\n%%%%EOF\n" % startxref)
    fp.flush()


#
# --------------------------------------------------------------------

Image.register_save("PDF", _save)

Image.register_extension("PDF", ".pdf")

Image.register_mime("PDF", "application/pdf")
##
# Image plugin for MPEG streams.  This plugin can identify a stream,
# but it cannot read it.


class MpegImageFile(ImageFile.ImageFile):

    format = "MPEG"
    format_description = "MPEG"

    def _open(self):

        s = BitStream(self.fp)

        if s.read(32) != 0x1B3:
            raise SyntaxError, "not an MPEG file"

        self.mode = "RGB"
        self.size = s.read(12), s.read(12)


# --------------------------------------------------------------------
# Registry stuff

Image.register_open("MPEG", MpegImageFile)

Image.register_extension("MPEG", ".mpg")
Image.register_extension("MPEG", ".mpeg")

Image.register_mime("MPEG", "video/mpeg")
示例#4
0
             (int(width * 72.0 / resolution), int(height * 72.0 / resolution)))

    xref[5] = fp.tell()
    _obj(fp, 5, Length=len(op.getvalue()))

    fp.write("stream\n")
    fp.write(op.getvalue())
    fp.write("\nendstream\n")

    _endobj(fp)

    #
    # trailer
    startxref = fp.tell()
    fp.write("xref\n0 %d\n0000000000 65535 f \n" % len(xref))
    for x in xref[1:]:
        fp.write("%010d 00000 n \n" % x)
    fp.write("trailer\n<<\n/Size %d\n/Root 1 0 R\n>>\n" % len(xref))
    fp.write("startxref\n%d\n%%%%EOF\n" % startxref)
    fp.flush()


#
# --------------------------------------------------------------------

Image.register_save("PDF", _save)

Image.register_extension("PDF", ".pdf")

Image.register_mime("PDF", "application/pdf")
##
# Image plugin for MPEG streams.  This plugin can identify a stream,
# but it cannot read it.

class MpegImageFile(ImageFile.ImageFile):

    format = "MPEG"
    format_description = "MPEG"

    def _open(self):

        s = BitStream(self.fp)

        if s.read(32) != 0x1B3:
            raise SyntaxError, "not an MPEG file"

        self.mode = "RGB"
        self.size = s.read(12), s.read(12)


# --------------------------------------------------------------------
# Registry stuff

Image.register_open("MPEG", MpegImageFile)

Image.register_extension("MPEG", ".mpg")
Image.register_extension("MPEG", ".mpeg")

Image.register_mime("MPEG", "video/mpeg")
        extra,
    )

    ImageFile._save(im, fp, [("jpeg", (0, 0) + im.size, 0, rawmode)])


def _save_cjpeg(im, fp, filename):
    # ALTERNATIVE: handle JPEGs via the IJG command line utilities.
    import os

    file = im._dump()
    os.system("cjpeg %s >%s" % (file, filename))
    try:
        os.unlink(file)
    except:
        pass


# -------------------------------------------------------------------q-
# Registry stuff

Image.register_open("JPEG", JpegImageFile, _accept)
Image.register_save("JPEG", _save)

Image.register_extension("JPEG", ".jfif")
Image.register_extension("JPEG", ".jpe")
Image.register_extension("JPEG", ".jpg")
Image.register_extension("JPEG", ".jpeg")

Image.register_mime("JPEG", "image/jpeg")
    fp.write(o16b(offset))
    fp.write(chr(transparent_index))
    fp.write(chr(compression_type))
    fp.write(o16b(0))   # reserved by Palm

    # now write colormap if necessary

    if colormapsize > 0:
        fp.write(o16b(256))
        for i in range(256):
            fp.write(chr(i))
            if colormapmode == 'RGB':
                fp.write(chr(colormap[3 * i]) + chr(colormap[3 * i + 1]) + chr(colormap[3 * i + 2]))
            elif colormapmode == 'RGBA':
                fp.write(chr(colormap[4 * i]) + chr(colormap[4 * i + 1]) + chr(colormap[4 * i + 2]))

    # now convert data to raw form
    ImageFile._save(im, fp, [("raw", (0,0)+im.size, 0, (rawmode, rowbytes, 1))])

    fp.flush()


#
# --------------------------------------------------------------------

Image.register_save("Palm", _save)

Image.register_extension("Palm", ".palm")

Image.register_mime("Palm", "image/palm")
        def append(self, chunk):
            self.data.append(chunk)

    def append(fp, cid, *data):
        data = string.join(data, "")
        hi, lo = Image.core.crc32(data, Image.core.crc32(cid))
        crc = o16(hi) + o16(lo)
        fp.append((cid, data, crc))

    fp = collector()

    try:
        im.encoderinfo = params
        _save(im, fp, None, append)
    finally:
        del im.encoderinfo

    return fp.data


# --------------------------------------------------------------------
# Registry

Image.register_open("PNG", PngImageFile, _accept)
Image.register_save("PNG", _save)

Image.register_extension("PNG", ".png")

Image.register_mime("PNG", "image/png")
示例#9
0
                    print cid, bytes, "(unknown)"
                s = self.fp.read(bytes)

            self.arg.crc(cid, s)

        self.fp.read(4)  # ship extra CRC

    def tell(self):
        return 0

    def verify(self):
        "Verify ARG file"

        # back up to first chunk
        self.fp.seek(8)

        self.arg.verify(self)
        self.arg.close()

        self.fp = None


#
# --------------------------------------------------------------------

Image.register_open("ARG", ArgImageFile, _accept)

Image.register_extension("ARG", ".arg")

Image.register_mime("ARG", "video/x-arg")
示例#10
0
    # data orientation
    stride = len(bits) * ((im.size[0]*bits[0]+7)/8)
    ifd[ROWSPERSTRIP] = im.size[1]
    ifd[STRIPBYTECOUNTS] = stride * im.size[1]
    ifd[STRIPOFFSETS] = 0 # this is adjusted by IFD writer
    ifd[COMPRESSION] = 1 # no compression

    offset = ifd.save(fp)

    ImageFile._save(im, fp, [
        ("raw", (0,0)+im.size, offset, (rawmode, stride, 1))
        ])


    # -- helper for multi-page save --
    if im.encoderinfo.has_key("_debug_multipage"):
        #just to access o32 and o16 (using correct byte order)
        im._debug_multipage = ifd

#
# --------------------------------------------------------------------
# Register

Image.register_open("TIFF", TiffImageFile, _accept)
Image.register_save("TIFF", _save)

Image.register_extension("TIFF", ".tif")
Image.register_extension("TIFF", ".tiff")

Image.register_mime("TIFF", "image/tiff")
示例#11
0
                 o16(offset[0]) +       # offset
                 o16(offset[1]) +
                 o16(im.size[0]) +      # size
                 o16(im.size[1]) +
                 chr(0) +               # flags
                 chr(8))                # bits

        ImageFile._save(im, fp, [("gif", (0,0)+im.size, 0, RAWMODE[im.mode])])

        fp.write("\0") # end of image data

    finally:
        del im.encoderinfo

    return fp.data


# --------------------------------------------------------------------
# Registry

Image.register_open(GifImageFile.format, GifImageFile, _accept)
Image.register_save(GifImageFile.format, _save)
Image.register_extension(GifImageFile.format, ".gif")
Image.register_mime(GifImageFile.format, "image/gif")

#
# Uncomment the following line if you wish to use NETPBM/PBMPLUS
# instead of the built-in "uncompressed" GIF encoder

# Image.register_save(GifImageFile.format, _save_netpbm)
示例#12
0
            self.tile = [("xbm", (0, 0) + self.size, m.end(), None)]


def _save(im, fp, filename):

    if im.mode != "1":
        raise IOError, "cannot write mode %s as XBM" % im.mode

    fp.write("#define im_width %d\n" % im.size[0])
    fp.write("#define im_height %d\n" % im.size[1])

    hotspot = im.encoderinfo.get("hotspot")
    if hotspot:
        fp.write("#define im_x_hot %d\n" % hotspot[0])
        fp.write("#define im_y_hot %d\n" % hotspot[1])

    fp.write("static char im_bits[] = {\n")

    ImageFile._save(im, fp, [("xbm", (0, 0) + im.size, 0, None)])

    fp.write("};\n")


Image.register_open("XBM", XbmImageFile, _accept)
Image.register_save("XBM", _save)

Image.register_extension("XBM", ".xbm")

Image.register_mime("XBM", "image/xbm")
示例#13
0
    # now write colormap if necessary

    if colormapsize > 0:
        fp.write(o16b(256))
        for i in range(256):
            fp.write(chr(i))
            if colormapmode == 'RGB':
                fp.write(
                    chr(colormap[3 * i]) + chr(colormap[3 * i + 1]) +
                    chr(colormap[3 * i + 2]))
            elif colormapmode == 'RGBA':
                fp.write(
                    chr(colormap[4 * i]) + chr(colormap[4 * i + 1]) +
                    chr(colormap[4 * i + 2]))

    # now convert data to raw form
    ImageFile._save(im, fp,
                    [("raw", (0, 0) + im.size, 0, (rawmode, rowbytes, 1))])

    fp.flush()


#
# --------------------------------------------------------------------

Image.register_save("Palm", _save)

Image.register_extension("Palm", ".palm")

Image.register_mime("Palm", "image/palm")
示例#14
0
            self.tile = [("xbm", (0, 0)+self.size, m.end(), None)]


def _save(im, fp, filename):

    if im.mode != "1":
        raise IOError, "cannot write mode %s as XBM" % im.mode

    fp.write("#define im_width %d\n" % im.size[0])
    fp.write("#define im_height %d\n" % im.size[1])

    hotspot = im.encoderinfo.get("hotspot")
    if hotspot:
        fp.write("#define im_x_hot %d\n" % hotspot[0])
        fp.write("#define im_y_hot %d\n" % hotspot[1])

    fp.write("static char im_bits[] = {\n")

    ImageFile._save(im, fp, [("xbm", (0,0)+im.size, 0, None)])

    fp.write("};\n")


Image.register_open("XBM", XbmImageFile, _accept)
Image.register_save("XBM", _save)

Image.register_extension("XBM", ".xbm")

Image.register_mime("XBM", "image/xbm")
示例#15
0
        subsampling,
        extra,
    )

    ImageFile._save(im, fp, [("jpeg", (0, 0) + im.size, 0, rawmode)])


def _save_cjpeg(im, fp, filename):
    # ALTERNATIVE: handle JPEGs via the IJG command line utilities.
    import os
    file = im._dump()
    os.system("cjpeg %s >%s" % (file, filename))
    try:
        os.unlink(file)
    except:
        pass


# -------------------------------------------------------------------q-
# Registry stuff

Image.register_open("JPEG", JpegImageFile, _accept)
Image.register_save("JPEG", _save)

Image.register_extension("JPEG", ".jfif")
Image.register_extension("JPEG", ".jpe")
Image.register_extension("JPEG", ".jpg")
Image.register_extension("JPEG", ".jpeg")

Image.register_mime("JPEG", "image/jpeg")
示例#16
0
                if Image.DEBUG:
                    print cid, bytes, "(unknown)"
                s = self.fp.read(bytes)

            self.arg.crc(cid, s)

        self.fp.read(4) # ship extra CRC

    def tell(self):
        return 0

    def verify(self):
        "Verify ARG file"

        # back up to first chunk
        self.fp.seek(8)

        self.arg.verify(self)
        self.arg.close()

        self.fp = None

#
# --------------------------------------------------------------------

Image.register_open("ARG", ArgImageFile, _accept)

Image.register_extension("ARG", ".arg")

Image.register_mime("ARG", "video/x-arg")
示例#17
0
        def append(self, chunk):
            self.data.append(chunk)

    def append(fp, cid, *data):
        data = string.join(data, "")
        hi, lo = Image.core.crc32(data, Image.core.crc32(cid))
        crc = o16(hi) + o16(lo)
        fp.append((cid, data, crc))

    fp = collector()

    try:
        im.encoderinfo = params
        _save(im, fp, None, append)
    finally:
        del im.encoderinfo

    return fp.data


# --------------------------------------------------------------------
# Registry

Image.register_open("PNG", PngImageFile, _accept)
Image.register_save("PNG", _save)

Image.register_extension("PNG", ".png")

Image.register_mime("PNG", "image/png")
示例#18
0
        self.mode = "P"
        self.palette = ImagePalette.raw("RGB", string.join(palette, ""))

        self.tile = [("raw", (0, 0) + self.size, self.fp.tell(), ("P", 0, 1))]

    def load_read(self, bytes):

        #
        # load all image data in one chunk

        xsize, ysize = self.size

        s = [None] * ysize

        for i in range(ysize):
            s[i] = string.ljust(self.fp.readline()[1:xsize + 1], xsize)

        self.fp = None

        return string.join(s, "")


#
# Registry

Image.register_open("XPM", XpmImageFile, _accept)

Image.register_extension("XPM", ".xpm")

Image.register_mime("XPM", "image/xpm")