diff options
Diffstat (limited to 'env/lib/python3.10/site-packages/PIL/TgaImagePlugin.py')
| -rw-r--r-- | env/lib/python3.10/site-packages/PIL/TgaImagePlugin.py | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/env/lib/python3.10/site-packages/PIL/TgaImagePlugin.py b/env/lib/python3.10/site-packages/PIL/TgaImagePlugin.py deleted file mode 100644 index cd454b7..0000000 --- a/env/lib/python3.10/site-packages/PIL/TgaImagePlugin.py +++ /dev/null @@ -1,254 +0,0 @@ -# -# The Python Imaging Library. -# $Id$ -# -# TGA file handling -# -# History: -# 95-09-01 fl created (reads 24-bit files only) -# 97-01-04 fl support more TGA versions, including compressed images -# 98-07-04 fl fixed orientation and alpha layer bugs -# 98-09-11 fl fixed orientation for runlength decoder -# -# Copyright (c) Secret Labs AB 1997-98. -# Copyright (c) Fredrik Lundh 1995-97. -# -# See the README file for information on usage and redistribution. -# - - -import warnings - -from . import Image, ImageFile, ImagePalette -from ._binary import i16le as i16 -from ._binary import o8 -from ._binary import o16le as o16 - -# -# -------------------------------------------------------------------- -# Read RGA file - - -MODES = { - # map imagetype/depth to rawmode - (1, 8): "P", - (3, 1): "1", - (3, 8): "L", - (3, 16): "LA", - (2, 16): "BGR;5", - (2, 24): "BGR", - (2, 32): "BGRA", -} - - -## -# Image plugin for Targa files. - - -class TgaImageFile(ImageFile.ImageFile): - - format = "TGA" - format_description = "Targa" - - def _open(self): - - # process header - s = self.fp.read(18) - - id_len = s[0] - - colormaptype = s[1] - imagetype = s[2] - - depth = s[16] - - flags = s[17] - - self._size = i16(s, 12), i16(s, 14) - - # validate header fields - if ( - colormaptype not in (0, 1) - or self.size[0] <= 0 - or self.size[1] <= 0 - or depth not in (1, 8, 16, 24, 32) - ): - raise SyntaxError("not a TGA file") - - # image mode - if imagetype in (3, 11): - self.mode = "L" - if depth == 1: - self.mode = "1" # ??? - elif depth == 16: - self.mode = "LA" - elif imagetype in (1, 9): - self.mode = "P" - elif imagetype in (2, 10): - self.mode = "RGB" - if depth == 32: - self.mode = "RGBA" - else: - raise SyntaxError("unknown TGA mode") - - # orientation - orientation = flags & 0x30 - self._flip_horizontally = orientation in [0x10, 0x30] - if orientation in [0x20, 0x30]: - orientation = 1 - elif orientation in [0, 0x10]: - orientation = -1 - else: - raise SyntaxError("unknown TGA orientation") - - self.info["orientation"] = orientation - - if imagetype & 8: - self.info["compression"] = "tga_rle" - - if id_len: - self.info["id_section"] = self.fp.read(id_len) - - if colormaptype: - # read palette - start, size, mapdepth = i16(s, 3), i16(s, 5), s[7] - if mapdepth == 16: - self.palette = ImagePalette.raw( - "BGR;15", b"\0" * 2 * start + self.fp.read(2 * size) - ) - elif mapdepth == 24: - self.palette = ImagePalette.raw( - "BGR", b"\0" * 3 * start + self.fp.read(3 * size) - ) - elif mapdepth == 32: - self.palette = ImagePalette.raw( - "BGRA", b"\0" * 4 * start + self.fp.read(4 * size) - ) - - # setup tile descriptor - try: - rawmode = MODES[(imagetype & 7, depth)] - if imagetype & 8: - # compressed - self.tile = [ - ( - "tga_rle", - (0, 0) + self.size, - self.fp.tell(), - (rawmode, orientation, depth), - ) - ] - else: - self.tile = [ - ( - "raw", - (0, 0) + self.size, - self.fp.tell(), - (rawmode, 0, orientation), - ) - ] - except KeyError: - pass # cannot decode - - def load_end(self): - if self._flip_horizontally: - self.im = self.im.transpose(Image.Transpose.FLIP_LEFT_RIGHT) - - -# -# -------------------------------------------------------------------- -# Write TGA file - - -SAVE = { - "1": ("1", 1, 0, 3), - "L": ("L", 8, 0, 3), - "LA": ("LA", 16, 0, 3), - "P": ("P", 8, 1, 1), - "RGB": ("BGR", 24, 0, 2), - "RGBA": ("BGRA", 32, 0, 2), -} - - -def _save(im, fp, filename): - - try: - rawmode, bits, colormaptype, imagetype = SAVE[im.mode] - except KeyError as e: - raise OSError(f"cannot write mode {im.mode} as TGA") from e - - if "rle" in im.encoderinfo: - rle = im.encoderinfo["rle"] - else: - compression = im.encoderinfo.get("compression", im.info.get("compression")) - rle = compression == "tga_rle" - if rle: - imagetype += 8 - - id_section = im.encoderinfo.get("id_section", im.info.get("id_section", "")) - id_len = len(id_section) - if id_len > 255: - id_len = 255 - id_section = id_section[:255] - warnings.warn("id_section has been trimmed to 255 characters") - - if colormaptype: - palette = im.im.getpalette("RGB", "BGR") - colormaplength, colormapentry = len(palette) // 3, 24 - else: - colormaplength, colormapentry = 0, 0 - - if im.mode in ("LA", "RGBA"): - flags = 8 - else: - flags = 0 - - orientation = im.encoderinfo.get("orientation", im.info.get("orientation", -1)) - if orientation > 0: - flags = flags | 0x20 - - fp.write( - o8(id_len) - + o8(colormaptype) - + o8(imagetype) - + o16(0) # colormapfirst - + o16(colormaplength) - + o8(colormapentry) - + o16(0) - + o16(0) - + o16(im.size[0]) - + o16(im.size[1]) - + o8(bits) - + o8(flags) - ) - - if id_section: - fp.write(id_section) - - if colormaptype: - fp.write(palette) - - if rle: - ImageFile._save( - im, fp, [("tga_rle", (0, 0) + im.size, 0, (rawmode, orientation))] - ) - else: - ImageFile._save( - im, fp, [("raw", (0, 0) + im.size, 0, (rawmode, 0, orientation))] - ) - - # write targa version 2 footer - fp.write(b"\000" * 8 + b"TRUEVISION-XFILE." + b"\000") - - -# -# -------------------------------------------------------------------- -# Registry - - -Image.register_open(TgaImageFile.format, TgaImageFile) -Image.register_save(TgaImageFile.format, _save) - -Image.register_extensions(TgaImageFile.format, [".tga", ".icb", ".vda", ".vst"]) - -Image.register_mime(TgaImageFile.format, "image/x-tga") |