diff options
author | Biswakalyan Bhuyan <biswa@surgot.in> | 2022-11-14 16:43:12 +0530 |
---|---|---|
committer | Biswakalyan Bhuyan <biswa@surgot.in> | 2022-11-14 16:43:12 +0530 |
commit | d47f8b48935d258f4c5c3e2267911753bebd5214 (patch) | |
tree | 3ed04e75bc3fc7c8e4ce618f527565da1df630a1 /env/lib/python3.10/site-packages/PIL/PyAccess.py | |
parent | 9468226a9e2e2ab8cdd599f1d8538e860ca86120 (diff) | |
download | idcard-d47f8b48935d258f4c5c3e2267911753bebd5214.tar.gz idcard-d47f8b48935d258f4c5c3e2267911753bebd5214.tar.bz2 idcard-d47f8b48935d258f4c5c3e2267911753bebd5214.zip |
id card
Diffstat (limited to 'env/lib/python3.10/site-packages/PIL/PyAccess.py')
-rw-r--r-- | env/lib/python3.10/site-packages/PIL/PyAccess.py | 358 |
1 files changed, 0 insertions, 358 deletions
diff --git a/env/lib/python3.10/site-packages/PIL/PyAccess.py b/env/lib/python3.10/site-packages/PIL/PyAccess.py deleted file mode 100644 index 9a2ec48..0000000 --- a/env/lib/python3.10/site-packages/PIL/PyAccess.py +++ /dev/null @@ -1,358 +0,0 @@ -# -# The Python Imaging Library -# Pillow fork -# -# Python implementation of the PixelAccess Object -# -# Copyright (c) 1997-2009 by Secret Labs AB. All rights reserved. -# Copyright (c) 1995-2009 by Fredrik Lundh. -# Copyright (c) 2013 Eric Soroos -# -# See the README file for information on usage and redistribution -# - -# Notes: -# -# * Implements the pixel access object following Access. -# * Does not implement the line functions, as they don't appear to be used -# * Taking only the tuple form, which is used from python. -# * Fill.c uses the integer form, but it's still going to use the old -# Access.c implementation. -# - -import logging -import sys - -try: - from cffi import FFI - - defs = """ - struct Pixel_RGBA { - unsigned char r,g,b,a; - }; - struct Pixel_I16 { - unsigned char l,r; - }; - """ - ffi = FFI() - ffi.cdef(defs) -except ImportError as ex: - # Allow error import for doc purposes, but error out when accessing - # anything in core. - from ._util import DeferredError - - FFI = ffi = DeferredError(ex) - -logger = logging.getLogger(__name__) - - -class PyAccess: - def __init__(self, img, readonly=False): - vals = dict(img.im.unsafe_ptrs) - self.readonly = readonly - self.image8 = ffi.cast("unsigned char **", vals["image8"]) - self.image32 = ffi.cast("int **", vals["image32"]) - self.image = ffi.cast("unsigned char **", vals["image"]) - self.xsize, self.ysize = img.im.size - self._img = img - - # Keep pointer to im object to prevent dereferencing. - self._im = img.im - if self._im.mode in ("P", "PA"): - self._palette = img.palette - - # Debugging is polluting test traces, only useful here - # when hacking on PyAccess - # logger.debug("%s", vals) - self._post_init() - - def _post_init(self): - pass - - def __setitem__(self, xy, color): - """ - Modifies the pixel at x,y. The color is given as a single - numerical value for single band images, and a tuple for - multi-band images - - :param xy: The pixel coordinate, given as (x, y). See - :ref:`coordinate-system`. - :param color: The pixel value. - """ - if self.readonly: - raise ValueError("Attempt to putpixel a read only image") - (x, y) = xy - if x < 0: - x = self.xsize + x - if y < 0: - y = self.ysize + y - (x, y) = self.check_xy((x, y)) - - if ( - self._im.mode in ("P", "PA") - and isinstance(color, (list, tuple)) - and len(color) in [3, 4] - ): - # RGB or RGBA value for a P or PA image - if self._im.mode == "PA": - alpha = color[3] if len(color) == 4 else 255 - color = color[:3] - color = self._palette.getcolor(color, self._img) - if self._im.mode == "PA": - color = (color, alpha) - - return self.set_pixel(x, y, color) - - def __getitem__(self, xy): - """ - Returns the pixel at x,y. The pixel is returned as a single - value for single band images or a tuple for multiple band - images - - :param xy: The pixel coordinate, given as (x, y). See - :ref:`coordinate-system`. - :returns: a pixel value for single band images, a tuple of - pixel values for multiband images. - """ - (x, y) = xy - if x < 0: - x = self.xsize + x - if y < 0: - y = self.ysize + y - (x, y) = self.check_xy((x, y)) - return self.get_pixel(x, y) - - putpixel = __setitem__ - getpixel = __getitem__ - - def check_xy(self, xy): - (x, y) = xy - if not (0 <= x < self.xsize and 0 <= y < self.ysize): - raise ValueError("pixel location out of range") - return xy - - -class _PyAccess32_2(PyAccess): - """PA, LA, stored in first and last bytes of a 32 bit word""" - - def _post_init(self, *args, **kwargs): - self.pixels = ffi.cast("struct Pixel_RGBA **", self.image32) - - def get_pixel(self, x, y): - pixel = self.pixels[y][x] - return pixel.r, pixel.a - - def set_pixel(self, x, y, color): - pixel = self.pixels[y][x] - # tuple - pixel.r = min(color[0], 255) - pixel.a = min(color[1], 255) - - -class _PyAccess32_3(PyAccess): - """RGB and friends, stored in the first three bytes of a 32 bit word""" - - def _post_init(self, *args, **kwargs): - self.pixels = ffi.cast("struct Pixel_RGBA **", self.image32) - - def get_pixel(self, x, y): - pixel = self.pixels[y][x] - return pixel.r, pixel.g, pixel.b - - def set_pixel(self, x, y, color): - pixel = self.pixels[y][x] - # tuple - pixel.r = min(color[0], 255) - pixel.g = min(color[1], 255) - pixel.b = min(color[2], 255) - pixel.a = 255 - - -class _PyAccess32_4(PyAccess): - """RGBA etc, all 4 bytes of a 32 bit word""" - - def _post_init(self, *args, **kwargs): - self.pixels = ffi.cast("struct Pixel_RGBA **", self.image32) - - def get_pixel(self, x, y): - pixel = self.pixels[y][x] - return pixel.r, pixel.g, pixel.b, pixel.a - - def set_pixel(self, x, y, color): - pixel = self.pixels[y][x] - # tuple - pixel.r = min(color[0], 255) - pixel.g = min(color[1], 255) - pixel.b = min(color[2], 255) - pixel.a = min(color[3], 255) - - -class _PyAccess8(PyAccess): - """1, L, P, 8 bit images stored as uint8""" - - def _post_init(self, *args, **kwargs): - self.pixels = self.image8 - - def get_pixel(self, x, y): - return self.pixels[y][x] - - def set_pixel(self, x, y, color): - try: - # integer - self.pixels[y][x] = min(color, 255) - except TypeError: - # tuple - self.pixels[y][x] = min(color[0], 255) - - -class _PyAccessI16_N(PyAccess): - """I;16 access, native bitendian without conversion""" - - def _post_init(self, *args, **kwargs): - self.pixels = ffi.cast("unsigned short **", self.image) - - def get_pixel(self, x, y): - return self.pixels[y][x] - - def set_pixel(self, x, y, color): - try: - # integer - self.pixels[y][x] = min(color, 65535) - except TypeError: - # tuple - self.pixels[y][x] = min(color[0], 65535) - - -class _PyAccessI16_L(PyAccess): - """I;16L access, with conversion""" - - def _post_init(self, *args, **kwargs): - self.pixels = ffi.cast("struct Pixel_I16 **", self.image) - - def get_pixel(self, x, y): - pixel = self.pixels[y][x] - return pixel.l + pixel.r * 256 - - def set_pixel(self, x, y, color): - pixel = self.pixels[y][x] - try: - color = min(color, 65535) - except TypeError: - color = min(color[0], 65535) - - pixel.l = color & 0xFF # noqa: E741 - pixel.r = color >> 8 - - -class _PyAccessI16_B(PyAccess): - """I;16B access, with conversion""" - - def _post_init(self, *args, **kwargs): - self.pixels = ffi.cast("struct Pixel_I16 **", self.image) - - def get_pixel(self, x, y): - pixel = self.pixels[y][x] - return pixel.l * 256 + pixel.r - - def set_pixel(self, x, y, color): - pixel = self.pixels[y][x] - try: - color = min(color, 65535) - except Exception: - color = min(color[0], 65535) - - pixel.l = color >> 8 # noqa: E741 - pixel.r = color & 0xFF - - -class _PyAccessI32_N(PyAccess): - """Signed Int32 access, native endian""" - - def _post_init(self, *args, **kwargs): - self.pixels = self.image32 - - def get_pixel(self, x, y): - return self.pixels[y][x] - - def set_pixel(self, x, y, color): - self.pixels[y][x] = color - - -class _PyAccessI32_Swap(PyAccess): - """I;32L/B access, with byteswapping conversion""" - - def _post_init(self, *args, **kwargs): - self.pixels = self.image32 - - def reverse(self, i): - orig = ffi.new("int *", i) - chars = ffi.cast("unsigned char *", orig) - chars[0], chars[1], chars[2], chars[3] = chars[3], chars[2], chars[1], chars[0] - return ffi.cast("int *", chars)[0] - - def get_pixel(self, x, y): - return self.reverse(self.pixels[y][x]) - - def set_pixel(self, x, y, color): - self.pixels[y][x] = self.reverse(color) - - -class _PyAccessF(PyAccess): - """32 bit float access""" - - def _post_init(self, *args, **kwargs): - self.pixels = ffi.cast("float **", self.image32) - - def get_pixel(self, x, y): - return self.pixels[y][x] - - def set_pixel(self, x, y, color): - try: - # not a tuple - self.pixels[y][x] = color - except TypeError: - # tuple - self.pixels[y][x] = color[0] - - -mode_map = { - "1": _PyAccess8, - "L": _PyAccess8, - "P": _PyAccess8, - "LA": _PyAccess32_2, - "La": _PyAccess32_2, - "PA": _PyAccess32_2, - "RGB": _PyAccess32_3, - "LAB": _PyAccess32_3, - "HSV": _PyAccess32_3, - "YCbCr": _PyAccess32_3, - "RGBA": _PyAccess32_4, - "RGBa": _PyAccess32_4, - "RGBX": _PyAccess32_4, - "CMYK": _PyAccess32_4, - "F": _PyAccessF, - "I": _PyAccessI32_N, -} - -if sys.byteorder == "little": - mode_map["I;16"] = _PyAccessI16_N - mode_map["I;16L"] = _PyAccessI16_N - mode_map["I;16B"] = _PyAccessI16_B - - mode_map["I;32L"] = _PyAccessI32_N - mode_map["I;32B"] = _PyAccessI32_Swap -else: - mode_map["I;16"] = _PyAccessI16_L - mode_map["I;16L"] = _PyAccessI16_L - mode_map["I;16B"] = _PyAccessI16_N - - mode_map["I;32L"] = _PyAccessI32_Swap - mode_map["I;32B"] = _PyAccessI32_N - - -def new(img, readonly=False): - access_type = mode_map.get(img.mode, None) - if not access_type: - logger.debug("PyAccess Not Implemented: %s", img.mode) - return None - return access_type(img, readonly) |