1 files changed, 90 insertions, 0 deletions
diff --git a/venv/lib/python3.9/site-packages/PIL/ImageMode.py b/venv/lib/python3.9/site-packages/PIL/ImageMode.py
new file mode 100644
index 00000000..a0b33514
--- /dev/null
+++ b/venv/lib/python3.9/site-packages/PIL/ImageMode.py
@@ -0,0 +1,90 @@
+#
+# The Python Imaging Library.
+# $Id$
+#
+# standard mode descriptors
+#
+# History:
+# 2006-03-20 fl   Added
+#
+# Copyright (c) 2006 by Secret Labs AB.
+# Copyright (c) 2006 by Fredrik Lundh.
+#
+# See the README file for information on usage and redistribution.
+#
+
+import sys
+
+# mode descriptor cache
+_modes = None
+
+
+class ModeDescriptor:
+    """Wrapper for mode strings."""
+
+    def __init__(self, mode, bands, basemode, basetype, typestr):
+        self.mode = mode
+        self.bands = bands
+        self.basemode = basemode
+        self.basetype = basetype
+        self.typestr = typestr
+
+    def __str__(self):
+        return self.mode
+
+
+def getmode(mode):
+    """Gets a mode descriptor for the given mode."""
+    global _modes
+    if not _modes:
+        # initialize mode cache
+        modes = {}
+        endian = "<" if sys.byteorder == "little" else ">"
+        for m, (basemode, basetype, bands, typestr) in {
+            # core modes
+            # Bits need to be extended to bytes
+            "1": ("L", "L", ("1",), "|b1"),
+            "L": ("L", "L", ("L",), "|u1"),
+            "I": ("L", "I", ("I",), endian + "i4"),
+            "F": ("L", "F", ("F",), endian + "f4"),
+            "P": ("P", "L", ("P",), "|u1"),
+            "RGB": ("RGB", "L", ("R", "G", "B"), "|u1"),
+            "RGBX": ("RGB", "L", ("R", "G", "B", "X"), "|u1"),
+            "RGBA": ("RGB", "L", ("R", "G", "B", "A"), "|u1"),
+            "CMYK": ("RGB", "L", ("C", "M", "Y", "K"), "|u1"),
+            "YCbCr": ("RGB", "L", ("Y", "Cb", "Cr"), "|u1"),
+            # UNDONE - unsigned |u1i1i1
+            "LAB": ("RGB", "L", ("L", "A", "B"), "|u1"),
+            "HSV": ("RGB", "L", ("H", "S", "V"), "|u1"),
+            # extra experimental modes
+            "RGBa": ("RGB", "L", ("R", "G", "B", "a"), "|u1"),
+            "BGR;15": ("RGB", "L", ("B", "G", "R"), "|u1"),
+            "BGR;16": ("RGB", "L", ("B", "G", "R"), "|u1"),
+            "BGR;24": ("RGB", "L", ("B", "G", "R"), "|u1"),
+            "LA": ("L", "L", ("L", "A"), "|u1"),
+            "La": ("L", "L", ("L", "a"), "|u1"),
+            "PA": ("RGB", "L", ("P", "A"), "|u1"),
+        }.items():
+            modes[m] = ModeDescriptor(m, bands, basemode, basetype, typestr)
+        # mapping modes
+        for i16mode, typestr in {
+            # I;16 == I;16L, and I;32 == I;32L
+            "I;16": "<u2",
+            "I;16S": "<i2",
+            "I;16L": "<u2",
+            "I;16LS": "<i2",
+            "I;16B": ">u2",
+            "I;16BS": ">i2",
+            "I;16N": endian + "u2",
+            "I;16NS": endian + "i2",
+            "I;32": "<u4",
+            "I;32B": ">u4",
+            "I;32L": "<u4",
+            "I;32S": "<i4",
+            "I;32BS": ">i4",
+            "I;32LS": "<i4",
+        }.items():
+            modes[i16mode] = ModeDescriptor(i16mode, ("I",), "L", "L", typestr)
+        # set global mode cache atomically
+        _modes = modes
+    return _modes[mode]