diff options
Diffstat (limited to 'env/lib/python3.10/site-packages/PIL/SunImagePlugin.py')
| -rw-r--r-- | env/lib/python3.10/site-packages/PIL/SunImagePlugin.py | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/env/lib/python3.10/site-packages/PIL/SunImagePlugin.py b/env/lib/python3.10/site-packages/PIL/SunImagePlugin.py deleted file mode 100644 index c03759a..0000000 --- a/env/lib/python3.10/site-packages/PIL/SunImagePlugin.py +++ /dev/null @@ -1,136 +0,0 @@ -# -# The Python Imaging Library. -# $Id$ -# -# Sun image file handling -# -# History: -# 1995-09-10 fl Created -# 1996-05-28 fl Fixed 32-bit alignment -# 1998-12-29 fl Import ImagePalette module -# 2001-12-18 fl Fixed palette loading (from Jean-Claude Rimbault) -# -# Copyright (c) 1997-2001 by Secret Labs AB -# Copyright (c) 1995-1996 by Fredrik Lundh -# -# See the README file for information on usage and redistribution. -# - - -from . import Image, ImageFile, ImagePalette -from ._binary import i32be as i32 - - -def _accept(prefix): - return len(prefix) >= 4 and i32(prefix) == 0x59A66A95 - - -## -# Image plugin for Sun raster files. - - -class SunImageFile(ImageFile.ImageFile): - - format = "SUN" - format_description = "Sun Raster File" - - def _open(self): - - # The Sun Raster file header is 32 bytes in length - # and has the following format: - - # typedef struct _SunRaster - # { - # DWORD MagicNumber; /* Magic (identification) number */ - # DWORD Width; /* Width of image in pixels */ - # DWORD Height; /* Height of image in pixels */ - # DWORD Depth; /* Number of bits per pixel */ - # DWORD Length; /* Size of image data in bytes */ - # DWORD Type; /* Type of raster file */ - # DWORD ColorMapType; /* Type of color map */ - # DWORD ColorMapLength; /* Size of the color map in bytes */ - # } SUNRASTER; - - # HEAD - s = self.fp.read(32) - if not _accept(s): - raise SyntaxError("not an SUN raster file") - - offset = 32 - - self._size = i32(s, 4), i32(s, 8) - - depth = i32(s, 12) - # data_length = i32(s, 16) # unreliable, ignore. - file_type = i32(s, 20) - palette_type = i32(s, 24) # 0: None, 1: RGB, 2: Raw/arbitrary - palette_length = i32(s, 28) - - if depth == 1: - self.mode, rawmode = "1", "1;I" - elif depth == 4: - self.mode, rawmode = "L", "L;4" - elif depth == 8: - self.mode = rawmode = "L" - elif depth == 24: - if file_type == 3: - self.mode, rawmode = "RGB", "RGB" - else: - self.mode, rawmode = "RGB", "BGR" - elif depth == 32: - if file_type == 3: - self.mode, rawmode = "RGB", "RGBX" - else: - self.mode, rawmode = "RGB", "BGRX" - else: - raise SyntaxError("Unsupported Mode/Bit Depth") - - if palette_length: - if palette_length > 1024: - raise SyntaxError("Unsupported Color Palette Length") - - if palette_type != 1: - raise SyntaxError("Unsupported Palette Type") - - offset = offset + palette_length - self.palette = ImagePalette.raw("RGB;L", self.fp.read(palette_length)) - if self.mode == "L": - self.mode = "P" - rawmode = rawmode.replace("L", "P") - - # 16 bit boundaries on stride - stride = ((self.size[0] * depth + 15) // 16) * 2 - - # file type: Type is the version (or flavor) of the bitmap - # file. The following values are typically found in the Type - # field: - # 0000h Old - # 0001h Standard - # 0002h Byte-encoded - # 0003h RGB format - # 0004h TIFF format - # 0005h IFF format - # FFFFh Experimental - - # Old and standard are the same, except for the length tag. - # byte-encoded is run-length-encoded - # RGB looks similar to standard, but RGB byte order - # TIFF and IFF mean that they were converted from T/IFF - # Experimental means that it's something else. - # (https://www.fileformat.info/format/sunraster/egff.htm) - - if file_type in (0, 1, 3, 4, 5): - self.tile = [("raw", (0, 0) + self.size, offset, (rawmode, stride))] - elif file_type == 2: - self.tile = [("sun_rle", (0, 0) + self.size, offset, rawmode)] - else: - raise SyntaxError("Unsupported Sun Raster file type") - - -# -# registry - - -Image.register_open(SunImageFile.format, SunImageFile, _accept) - -Image.register_extension(SunImageFile.format, ".ras") |