コード例 #1
0
def _read_additional_layer_info_block(fp):
    """
    Reads a tagged block with additional layer information.
    """
    sig = fp.read(4)
    if sig not in [b'8BIM', b'8B64']:
        fp.seek(-4, 1)
        #warnings.warn("not a block: %r" % sig)
        return

    key = fp.read(4)
    length = pad(read_fmt("I", fp)[0], 4)

    data = fp.read(length)
    return Block(key, data)
コード例 #2
0
def _read_block(fp, encoding):
    """
    Reads single image resource block. Such blocks contain non-pixel data
    for the images (e.g. pen tool paths).
    """
    sig = fp.read(4)
    if sig != b"8BIM":
        raise Error("Invalid resource signature (%r)" % sig)

    resource_id = read_fmt("H", fp)[0]
    name = read_pascal_string(fp, encoding, 2)

    data_size = pad(read_fmt("I", fp)[0], 2)
    data = fp.read(data_size)

    return ImageResource(resource_id, name, data)
コード例 #3
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def _read_block(fp, encoding):
    """
    Reads single image resource block. Such blocks contain non-pixel data
    for the images (e.g. pen tool paths).
    """
    sig = fp.read(4)
    if sig not in [b'8BIM', b'MeSa']:
        raise Error("Invalid resource signature (%r)" % sig)

    resource_id = read_fmt("H", fp)[0]
    name = read_pascal_string(fp, encoding, 2)

    data_size = pad(read_fmt("I", fp)[0], 2)
    data = fp.read(data_size)

    return ImageResource(resource_id, name, data)
コード例 #4
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def _read_block(fp, encoding):
    """
    Reads single image resource block. Such blocks contain non-pixel data
    for the images (e.g. pen tool paths).
    """
    sig = fp.read(4)
    if not sig in (b'8BIM', b'MeSa'):
        raise Error("Invalid resource signature (%r)" % sig)

    resource_id = read_fmt("H", fp)[0]
    name = read_pascal_string(fp, encoding, 2)

    data_size = pad(read_fmt("I", fp)[0], 2)
    if not data_size:
        logger.debug(
            "Found image resource with no data (%d %s). Dropping..." % (
            resource_id, ImageResourceID.name_of(resource_id)
        ))
        return None

    data = fp.read(data_size)
    return ImageResource(resource_id, name, data)
コード例 #5
0
ファイル: layers.py プロジェクト: EvgenKo423/psd-tools
def _read_additional_layer_info_block(fp, padding):
    """
    Reads a tagged block with additional layer information.
    """
    sig = fp.read(4)
    if sig not in (b'8BIM', b'8B64'):
        raise Error("Invalid signature of tagged block (%r)" % sig)

    key = fp.read(4)
    length = read_fmt("I", fp)[0]
    if not length:
        logger.debug(
            "Found tagged block with no data (%s %s). Dropping..." % (
            key, TaggedBlock.name_of(key)
        ))
        return None

    if padding > 0:
        length = pad(length, padding)

    data = fp.read(length)
    return Block(key, data)
コード例 #6
0
ファイル: layers.py プロジェクト: jacenfox/psd-tools2
def _read_additional_layer_info_block(fp, padding, version):
    """
    Reads a tagged block with additional layer information.
    """
    sig = fp.read(4)
    if sig not in [b'8BIM', b'8B64']:
        fp.seek(-4, 1)
        #warnings.warn("not a block: %r" % sig)
        return

    key = fp.read(4)
    if version == 2 and key in (b'LMsk', b'Lr16', b'Lr32', b'Layr', b'Mt16',
                                b'Mt32', b'Mtrn', b'Alph', b'FMsk', b'lnk2',
                                b'FEid', b'FXid', b'PxSD'):
        length = read_fmt("Q", fp)[0]
    else:
        length = read_fmt("I", fp)[0]
    if padding > 0:
        length = pad(length, padding)

    data = fp.read(length)
    return Block(key, data)