K0lb3/astc_decomp


ASTC decompresser for PIL

License: Zlib

Language: Python

Keywords: astc, cython, decompression, decompression-library, python, texture


ASTC_Decomp

An ASTC decoder for PIL.

The decoder uses richgel999/astc_dec to decompress the ASTC blocks.

Installation

  • Cython required

PIP

pip install astc_decomp

Manual

python setup.py install

Usage

Arguments

  • block_width: - Block width, in pixels.
  • block_height: - Block height, in pixels.
  • is_srgb: - If isSRGB is true, the spec requires the decoder to scale the LDR 8-bit endpoints to 16-bit before interpolation slightly differently, which will lead to different outputs. So be sure to set it correctly (ideally it should match whatever the encoder did). (optional arg, default : False)

PIL.Image decoder

from PIL import Image
import astc_decomp 
#needs to be imported once in the active code, so that the codec can register itself

astc_data : bytes
block_width : int
block_height : int
is_srgb : bool = False
img = Image.frombytes('RGBA', size, astc_data, 'astc', (block_width, block_height, is_srgb))

raw decoder

from astc_decomp import decompress_astc

# ASTC to RGBA
rgba_data = decompress_astc(astc_data : bytes, width : int, height : int, block_width : int, block_height : int, is_srgb : bool = False)

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Packages Referencing this Repo

astc-decomp
ASTC decoder for PIL
Latest release 1.0.2 - Updated

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