diff options
| author | maxim-yurchuk <[email protected]> | 2025-02-11 13:26:52 +0300 |
|---|---|---|
| committer | maxim-yurchuk <[email protected]> | 2025-02-11 13:57:59 +0300 |
| commit | f895bba65827952ed934b2b46f9a45e30a191fd2 (patch) | |
| tree | 03260c906d9ec41cdc03e2a496b15d407459cec0 /contrib/python/Pillow/py3/PIL/QoiImagePlugin.py | |
| parent | 5f7060466f7b9707818c2091e1a25c14f33c3474 (diff) | |
Remove deps on pandas
<https://github.com/ydb-platform/ydb/pull/14418>
<https://github.com/ydb-platform/ydb/pull/14419>
\-- аналогичные правки в gh
Хочу залить в обход синка, чтобы посмотреть удалится ли pandas в нашей gh репе через piglet
commit_hash:abca127aa37d4dbb94b07e1e18cdb8eb5b711860
Diffstat (limited to 'contrib/python/Pillow/py3/PIL/QoiImagePlugin.py')
| -rw-r--r-- | contrib/python/Pillow/py3/PIL/QoiImagePlugin.py | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/contrib/python/Pillow/py3/PIL/QoiImagePlugin.py b/contrib/python/Pillow/py3/PIL/QoiImagePlugin.py deleted file mode 100644 index a7b9d4a9e3a..00000000000 --- a/contrib/python/Pillow/py3/PIL/QoiImagePlugin.py +++ /dev/null @@ -1,106 +0,0 @@ -# -# The Python Imaging Library. -# -# QOI support for PIL -# -# See the README file for information on usage and redistribution. -# -from __future__ import annotations - -import os - -from . import Image, ImageFile -from ._binary import i32be as i32 -from ._binary import o8 - - -def _accept(prefix): - return prefix[:4] == b"qoif" - - -class QoiImageFile(ImageFile.ImageFile): - format = "QOI" - format_description = "Quite OK Image" - - def _open(self): - if not _accept(self.fp.read(4)): - msg = "not a QOI file" - raise SyntaxError(msg) - - self._size = tuple(i32(self.fp.read(4)) for i in range(2)) - - channels = self.fp.read(1)[0] - self._mode = "RGB" if channels == 3 else "RGBA" - - self.fp.seek(1, os.SEEK_CUR) # colorspace - self.tile = [("qoi", (0, 0) + self._size, self.fp.tell(), None)] - - -class QoiDecoder(ImageFile.PyDecoder): - _pulls_fd = True - - def _add_to_previous_pixels(self, value): - self._previous_pixel = value - - r, g, b, a = value - hash_value = (r * 3 + g * 5 + b * 7 + a * 11) % 64 - self._previously_seen_pixels[hash_value] = value - - def decode(self, buffer): - self._previously_seen_pixels = {} - self._previous_pixel = None - self._add_to_previous_pixels(b"".join(o8(i) for i in (0, 0, 0, 255))) - - data = bytearray() - bands = Image.getmodebands(self.mode) - while len(data) < self.state.xsize * self.state.ysize * bands: - byte = self.fd.read(1)[0] - if byte == 0b11111110: # QOI_OP_RGB - value = self.fd.read(3) + self._previous_pixel[3:] - elif byte == 0b11111111: # QOI_OP_RGBA - value = self.fd.read(4) - else: - op = byte >> 6 - if op == 0: # QOI_OP_INDEX - op_index = byte & 0b00111111 - value = self._previously_seen_pixels.get(op_index, (0, 0, 0, 0)) - elif op == 1: # QOI_OP_DIFF - value = ( - (self._previous_pixel[0] + ((byte & 0b00110000) >> 4) - 2) - % 256, - (self._previous_pixel[1] + ((byte & 0b00001100) >> 2) - 2) - % 256, - (self._previous_pixel[2] + (byte & 0b00000011) - 2) % 256, - ) - value += (self._previous_pixel[3],) - elif op == 2: # QOI_OP_LUMA - second_byte = self.fd.read(1)[0] - diff_green = (byte & 0b00111111) - 32 - diff_red = ((second_byte & 0b11110000) >> 4) - 8 - diff_blue = (second_byte & 0b00001111) - 8 - - value = tuple( - (self._previous_pixel[i] + diff_green + diff) % 256 - for i, diff in enumerate((diff_red, 0, diff_blue)) - ) - value += (self._previous_pixel[3],) - elif op == 3: # QOI_OP_RUN - run_length = (byte & 0b00111111) + 1 - value = self._previous_pixel - if bands == 3: - value = value[:3] - data += value * run_length - continue - value = b"".join(o8(i) for i in value) - self._add_to_previous_pixels(value) - - if bands == 3: - value = value[:3] - data += value - self.set_as_raw(bytes(data)) - return -1, 0 - - -Image.register_open(QoiImageFile.format, QoiImageFile, _accept) -Image.register_decoder("qoi", QoiDecoder) -Image.register_extension(QoiImageFile.format, ".qoi") |
