diff options
| author | Xusheng <xusheng@vector35.com> | 2021-07-01 12:34:30 +0800 |
|---|---|---|
| committer | Xusheng Li <xushengli@protonmail.com> | 2021-07-05 10:11:47 +0800 |
| commit | 13ff200ba134b8704f37eca99c42b70dab0d17dc (patch) | |
| tree | 876b3db3c53f704b31152aeaede1f2edc9d27b24 /python/examples/kaitai/ico.py | |
| parent | 4039a800349dcd587833d3e27d9137e4649818f4 (diff) | |
Remove snippet and kaitai plugin. Note their individual links.
Diffstat (limited to 'python/examples/kaitai/ico.py')
| -rw-r--r-- | python/examples/kaitai/ico.py | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/python/examples/kaitai/ico.py b/python/examples/kaitai/ico.py deleted file mode 100644 index 408c4bc4..00000000 --- a/python/examples/kaitai/ico.py +++ /dev/null @@ -1,124 +0,0 @@ -# This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild - -from pkg_resources import parse_version -from .kaitaistruct import __version__ as ks_version, KaitaiStruct, KaitaiStream, BytesIO -import collections - - -if parse_version(ks_version) < parse_version('0.7'): - raise Exception("Incompatible Kaitai Struct Python API: 0.7 or later is required, but you have %s" % (ks_version)) - -class Ico(KaitaiStruct): - """Microsoft Windows uses specific file format to store applications - icons - ICO. This is a container that contains one or more image - files (effectively, DIB parts of BMP files or full PNG files are - contained inside). - - .. seealso:: - Source - https://msdn.microsoft.com/en-us/library/ms997538.aspx - """ - SEQ_FIELDS = ["magic", "num_images", "images"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['magic']['start'] = self._io.pos() - self.magic = self._io.ensure_fixed_contents(b"\x00\x00\x01\x00") - self._debug['magic']['end'] = self._io.pos() - self._debug['num_images']['start'] = self._io.pos() - self.num_images = self._io.read_u2le() - self._debug['num_images']['end'] = self._io.pos() - self._debug['images']['start'] = self._io.pos() - self.images = [None] * (self.num_images) - for i in range(self.num_images): - if not 'arr' in self._debug['images']: - self._debug['images']['arr'] = [] - self._debug['images']['arr'].append({'start': self._io.pos()}) - _t_images = self._root.IconDirEntry(self._io, self, self._root) - _t_images._read() - self.images[i] = _t_images - self._debug['images']['arr'][i]['end'] = self._io.pos() - - self._debug['images']['end'] = self._io.pos() - - class IconDirEntry(KaitaiStruct): - SEQ_FIELDS = ["width", "height", "num_colors", "reserved", "num_planes", "bpp", "len_img", "ofs_img"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['width']['start'] = self._io.pos() - self.width = self._io.read_u1() - self._debug['width']['end'] = self._io.pos() - self._debug['height']['start'] = self._io.pos() - self.height = self._io.read_u1() - self._debug['height']['end'] = self._io.pos() - self._debug['num_colors']['start'] = self._io.pos() - self.num_colors = self._io.read_u1() - self._debug['num_colors']['end'] = self._io.pos() - self._debug['reserved']['start'] = self._io.pos() - self.reserved = self._io.ensure_fixed_contents(b"\x00") - self._debug['reserved']['end'] = self._io.pos() - self._debug['num_planes']['start'] = self._io.pos() - self.num_planes = self._io.read_u2le() - self._debug['num_planes']['end'] = self._io.pos() - self._debug['bpp']['start'] = self._io.pos() - self.bpp = self._io.read_u2le() - self._debug['bpp']['end'] = self._io.pos() - self._debug['len_img']['start'] = self._io.pos() - self.len_img = self._io.read_u4le() - self._debug['len_img']['end'] = self._io.pos() - self._debug['ofs_img']['start'] = self._io.pos() - self.ofs_img = self._io.read_u4le() - self._debug['ofs_img']['end'] = self._io.pos() - - @property - def img(self): - """Raw image data. Use `is_png` to determine whether this is an - embedded PNG file (true) or a DIB bitmap (false) and call a - relevant parser, if needed to parse image data further. - """ - if hasattr(self, '_m_img'): - return self._m_img if hasattr(self, '_m_img') else None - - _pos = self._io.pos() - self._io.seek(self.ofs_img) - self._debug['_m_img']['start'] = self._io.pos() - self._m_img = self._io.read_bytes(self.len_img) - self._debug['_m_img']['end'] = self._io.pos() - self._io.seek(_pos) - return self._m_img if hasattr(self, '_m_img') else None - - @property - def png_header(self): - """Pre-reads first 8 bytes of the image to determine if it's an - embedded PNG file. - """ - if hasattr(self, '_m_png_header'): - return self._m_png_header if hasattr(self, '_m_png_header') else None - - _pos = self._io.pos() - self._io.seek(self.ofs_img) - self._debug['_m_png_header']['start'] = self._io.pos() - self._m_png_header = self._io.read_bytes(8) - self._debug['_m_png_header']['end'] = self._io.pos() - self._io.seek(_pos) - return self._m_png_header if hasattr(self, '_m_png_header') else None - - @property - def is_png(self): - """True if this image is in PNG format.""" - if hasattr(self, '_m_is_png'): - return self._m_is_png if hasattr(self, '_m_is_png') else None - - self._m_is_png = self.png_header == b"\x89\x50\x4E\x47\x0D\x0A\x1A\x0A" - return self._m_is_png if hasattr(self, '_m_is_png') else None - - - |
