1 files changed, 115 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/PIL/FtexImagePlugin.py b/.venv/lib/python3.12/site-packages/PIL/FtexImagePlugin.py
new file mode 100644
index 00000000..0516b760
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/PIL/FtexImagePlugin.py
@@ -0,0 +1,115 @@
+"""
+A Pillow loader for .ftc and .ftu files (FTEX)
+Jerome Leclanche <jerome@leclan.ch>
+
+The contents of this file are hereby released in the public domain (CC0)
+Full text of the CC0 license:
+  https://creativecommons.org/publicdomain/zero/1.0/
+
+Independence War 2: Edge Of Chaos - Texture File Format - 16 October 2001
+
+The textures used for 3D objects in Independence War 2: Edge Of Chaos are in a
+packed custom format called FTEX. This file format uses file extensions FTC
+and FTU.
+* FTC files are compressed textures (using standard texture compression).
+* FTU files are not compressed.
+Texture File Format
+The FTC and FTU texture files both use the same format. This
+has the following structure:
+{header}
+{format_directory}
+{data}
+Where:
+{header} = {
+    u32:magic,
+    u32:version,
+    u32:width,
+    u32:height,
+    u32:mipmap_count,
+    u32:format_count
+}
+
+* The "magic" number is "FTEX".
+* "width" and "height" are the dimensions of the texture.
+* "mipmap_count" is the number of mipmaps in the texture.
+* "format_count" is the number of texture formats (different versions of the
+same texture) in this file.
+
+{format_directory} = format_count * { u32:format, u32:where }
+
+The format value is 0 for DXT1 compressed textures and 1 for 24-bit RGB
+uncompressed textures.
+The texture data for a format starts at the position "where" in the file.
+
+Each set of texture data in the file has the following structure:
+{data} = format_count * { u32:mipmap_size, mipmap_size * { u8 } }
+* "mipmap_size" is the number of bytes in that mip level. For compressed
+textures this is the size of the texture data compressed with DXT1. For 24 bit
+uncompressed textures, this is 3 * width * height. Following this are the image
+bytes for that mipmap level.
+
+Note: All data is stored in little-Endian (Intel) byte order.
+"""
+
+from __future__ import annotations
+
+import struct
+from enum import IntEnum
+from io import BytesIO
+
+from . import Image, ImageFile
+
+MAGIC = b"FTEX"
+
+
+class Format(IntEnum):
+    DXT1 = 0
+    UNCOMPRESSED = 1
+
+
+class FtexImageFile(ImageFile.ImageFile):
+    format = "FTEX"
+    format_description = "Texture File Format (IW2:EOC)"
+
+    def _open(self) -> None:
+        if not _accept(self.fp.read(4)):
+            msg = "not an FTEX file"
+            raise SyntaxError(msg)
+        struct.unpack("<i", self.fp.read(4))  # version
+        self._size = struct.unpack("<2i", self.fp.read(8))
+        mipmap_count, format_count = struct.unpack("<2i", self.fp.read(8))
+
+        self._mode = "RGB"
+
+        # Only support single-format files.
+        # I don't know of any multi-format file.
+        assert format_count == 1
+
+        format, where = struct.unpack("<2i", self.fp.read(8))
+        self.fp.seek(where)
+        (mipmap_size,) = struct.unpack("<i", self.fp.read(4))
+
+        data = self.fp.read(mipmap_size)
+
+        if format == Format.DXT1:
+            self._mode = "RGBA"
+            self.tile = [ImageFile._Tile("bcn", (0, 0) + self.size, 0, (1,))]
+        elif format == Format.UNCOMPRESSED:
+            self.tile = [ImageFile._Tile("raw", (0, 0) + self.size, 0, "RGB")]
+        else:
+            msg = f"Invalid texture compression format: {repr(format)}"
+            raise ValueError(msg)
+
+        self.fp.close()
+        self.fp = BytesIO(data)
+
+    def load_seek(self, pos: int) -> None:
+        pass
+
+
+def _accept(prefix: bytes) -> bool:
+    return prefix[:4] == MAGIC
+
+
+Image.register_open(FtexImageFile.format, FtexImageFile, _accept)
+Image.register_extensions(FtexImageFile.format, [".ftc", ".ftu"])