https://github.com/k0lb3/etcpack

cythonic integration of etcpack into Pillow
https://github.com/k0lb3/etcpack

codec cython etc etc2 pillow texture

Last synced: 2 months ago
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cythonic integration of etcpack into Pillow

• Host: GitHub
• URL: https://github.com/k0lb3/etcpack
• Owner: K0lb3
• License: zlib
• Created: 2019-09-07T23:37:06.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2023-08-20T02:05:39.000Z (over 1 year ago)
• Last Synced: 2024-10-06T02:07:45.827Z (3 months ago)
• Topics: codec, cython, etc, etc2, pillow, texture
• Language: C++
• Size: 771 KB
• Stars: 2
• Watchers: 2
• Forks: 4
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# etcpack (for python)

A cython wrapper for [etcpack](https://github.com/Ericsson/ETCPACK.git) that integrates etcpack into Pillow as codec.

Install via

``python setup.py install``

- Cython is required

## usage example

```python

from PIL import Image

import etcpack 

#needs to be imported once in the active code, so that the codec can register itself

raw_etc_image_data : bytes

mode = 'RGB'/'RGBA' # depending on the ETC mode

args = (x, ) # x depending on the ETC mode

img = Image.frombytes(mode, size, raw_etc_image_data, 'etc2', args)

```

## codec table

|ETC mode | arg | mode |

|---|---|---|

| ETC1_RGB_NO_MIPMAPS | 0 | RGB |

| ETC2PACKAGE_RGB_NO_MIPMAPS | 1 | RGB |

| ETC2PACKAGE_RGBA_NO_MIPMAPS_OLD | 2 | RGBA | 

| ETC2PACKAGE_RGBA_NO_MIPMAPS | 3 | RGBA |

| ETC2PACKAGE_RGBA1_NO_MIPMAPS | 4 | RGBA |

| ETC2PACKAGE_R_NO_MIPMAPS | 5 | R or A |

| ETC2PACKAGE_RG_NO_MIPMAPS | 6 | RGA | 

| ETC2PACKAGE_R_SIGNED_NO_MIPMAPS | 7 | R or A |

| ETC2PACKAGE_RG_SIGNED_NO_MIPMAPS | 8 | RGA |

| ETC2PACKAGE_sRGB_NO_MIPMAPS | 9 | RGB |

| ETC2PACKAGE_sRGBA_NO_MIPMAPS | 10 | RGBA | 

| ETC2PACKAGE_sRGBA1_NO_MIPMAPS | 11 | RGBA  |

## notes

* compression isn't implemented

* RG is untested