path: root/python-etcpak.spec

%global _empty_manifest_terminate_build 0
Name:		python-etcpak
Version:	0.9.8
Release:	1
Summary:	python wrapper for etcpak
License:	MIT License
URL:		https://github.com/K0lb3/etcpak
Source0:	https://mirrors.nju.edu.cn/pypi/web/packages/52/c0/98962de8a6d2c8416326d3c343efceca8a2da6e58beb4ca05936b7292075/etcpak-0.9.8.tar.gz


%description
# etcpak

[![PyPI supported Python versions](https://img.shields.io/pypi/pyversions/etcpak.svg)](https://pypi.python.org/pypi/etcpak)
[![Win/Mac/Linux](https://img.shields.io/badge/platform-windows%20%7C%20macos%20%7C%20linux-informational)]()
[![MIT](https://img.shields.io/pypi/l/etcpak.svg)](https://github.com/K0lb3/etcpak/blob/master/LICENSE)
[![Build Status](https://github.com/K0lb3/etcpak/workflows/CI/badge.svg?branch=master)](https://github.com/K0lb3/etcpak/actions?query=workflow%3A%22CI%22)

A python wrapper for [wolfpld/etcpak](https://github.com/wolfpld/etcpak)

Some changes were made to the original code to make it cross-platform compatible.

1. [Installation](https://github.com/K0lb3/etcpak#installation)
2. [Example](https://github.com/K0lb3/etcpak#example)
3. [Functions](https://github.com/K0lb3/etcpak#functions)

## Installation

```cmd
pip install etcpak
```

or download/clone the git and use

```cmd
python setup.py install
```

## Example

```python
from PIL import Image
import etcpak

# load image
img = Image.open(file_path)

# get image data
img_data = img.convert("RGBA").tobytes()

# compress data
compressed = etcpak.compress_to_dxt5(img_data, img.width, img.height)
```

__composite image for format comparission__
```python
import os
import etcpak
import texture2ddecoder
from PIL import Image

FORMATS = [
    ("DXT1", etcpak.compress_to_dxt1, texture2ddecoder.decode_bc1),
    ("DXT1 Dither", etcpak.compress_to_dxt1_dither, texture2ddecoder.decode_bc1),
    ("DXT5", etcpak.compress_to_dxt5, texture2ddecoder.decode_bc3),
    ("ETC1", etcpak.compress_to_etc1, texture2ddecoder.decode_etc1),
    ("ETC1 Dither", etcpak.compress_to_etc1_dither, texture2ddecoder.decode_etc1),
    ("ETC2 RGB", etcpak.compress_to_etc2_rgb, texture2ddecoder.decode_etc2),
    ("ETC2 RGBA", etcpak.compress_to_etc2_rgba, texture2ddecoder.decode_etc2a8)
]

p = "S:\\Pictures"
for fp in os.listdir(p):
    if not fp[-4:] in [".png", ".jpg", ".bmp", "jpeg"]:
        continue
    # load image and adjust format and size
    print(fp)
    img = Image.open(os.path.join(p, fp)).convert("RGBA")
    img = img.crop((0,0,img.width-img.width%4, img.height-img.height%4))
    
    # create composite image
    comp = Image.new("RGBA", (img.width*8, img.height))
    comp.paste(img, (0, 0))
    print(img.width * img.height * 4)

    # iterate over all formats
    for i, (name, enc, dec) in enumerate(FORMATS):
        print(name)
        # make sure that the channel order is correct for the compression
        if name[:3] == "DXT":
            raw = img.tobytes()
        elif name[:3] == "ETC":
            r,g,b,a = img.split()
            raw = Image.merge('RGBA', (b,g,r,a)).tobytes()
        
        # compress
        data = enc(raw, img.width, img.height)

        # decompress
        dimg = Image.frombytes("RGBA", img.size, dec(data, img.width, img.height), "raw", "BGRA")

        # add to composite image
        comp.paste(dimg, (img.width*(i+1), 0))

    # save composite image
    comp.save(os.path.splitext(fp)[0]+".png")
```

## Functions

* all functions accept only arguments, no keywords
* **the data has to be RGBA/BGRA for the RGB functions as well**
* **all __DXT__ compressions require data in the __RGBA__ format**
* **all __ETC__ compressions require data in the __BGRA__ format**

### compress_to_dxt1

*Compresses RGBA to DXT1*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_dxt1_dither

*Compresses RGBA to DXT1 Dither*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_dxt5

*Compresses RGBA to DXT5*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc1

*Compresses RGBA to ETC1 RGB*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc1_dither

*Compresses RGBA to ETC1 Dither*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc1_alpha

*Compresses A to ETC1 Alpha*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc2_rgb

*Compresses RGBA to ETC2 RGB*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc2_rgba

*Compresses RGBA to ETC2 RGBA*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc2_alpha

*Compresses RGBA to ETC2 Alpha*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```


%package -n python3-etcpak
Summary:	python wrapper for etcpak
Provides:	python-etcpak
BuildRequires:	python3-devel
BuildRequires:	python3-setuptools
BuildRequires:	python3-pip
BuildRequires:	python3-cffi
BuildRequires:	gcc
BuildRequires:	gdb
%description -n python3-etcpak
# etcpak

[![PyPI supported Python versions](https://img.shields.io/pypi/pyversions/etcpak.svg)](https://pypi.python.org/pypi/etcpak)
[![Win/Mac/Linux](https://img.shields.io/badge/platform-windows%20%7C%20macos%20%7C%20linux-informational)]()
[![MIT](https://img.shields.io/pypi/l/etcpak.svg)](https://github.com/K0lb3/etcpak/blob/master/LICENSE)
[![Build Status](https://github.com/K0lb3/etcpak/workflows/CI/badge.svg?branch=master)](https://github.com/K0lb3/etcpak/actions?query=workflow%3A%22CI%22)

A python wrapper for [wolfpld/etcpak](https://github.com/wolfpld/etcpak)

Some changes were made to the original code to make it cross-platform compatible.

1. [Installation](https://github.com/K0lb3/etcpak#installation)
2. [Example](https://github.com/K0lb3/etcpak#example)
3. [Functions](https://github.com/K0lb3/etcpak#functions)

## Installation

```cmd
pip install etcpak
```

or download/clone the git and use

```cmd
python setup.py install
```

## Example

```python
from PIL import Image
import etcpak

# load image
img = Image.open(file_path)

# get image data
img_data = img.convert("RGBA").tobytes()

# compress data
compressed = etcpak.compress_to_dxt5(img_data, img.width, img.height)
```

__composite image for format comparission__
```python
import os
import etcpak
import texture2ddecoder
from PIL import Image

FORMATS = [
    ("DXT1", etcpak.compress_to_dxt1, texture2ddecoder.decode_bc1),
    ("DXT1 Dither", etcpak.compress_to_dxt1_dither, texture2ddecoder.decode_bc1),
    ("DXT5", etcpak.compress_to_dxt5, texture2ddecoder.decode_bc3),
    ("ETC1", etcpak.compress_to_etc1, texture2ddecoder.decode_etc1),
    ("ETC1 Dither", etcpak.compress_to_etc1_dither, texture2ddecoder.decode_etc1),
    ("ETC2 RGB", etcpak.compress_to_etc2_rgb, texture2ddecoder.decode_etc2),
    ("ETC2 RGBA", etcpak.compress_to_etc2_rgba, texture2ddecoder.decode_etc2a8)
]

p = "S:\\Pictures"
for fp in os.listdir(p):
    if not fp[-4:] in [".png", ".jpg", ".bmp", "jpeg"]:
        continue
    # load image and adjust format and size
    print(fp)
    img = Image.open(os.path.join(p, fp)).convert("RGBA")
    img = img.crop((0,0,img.width-img.width%4, img.height-img.height%4))
    
    # create composite image
    comp = Image.new("RGBA", (img.width*8, img.height))
    comp.paste(img, (0, 0))
    print(img.width * img.height * 4)

    # iterate over all formats
    for i, (name, enc, dec) in enumerate(FORMATS):
        print(name)
        # make sure that the channel order is correct for the compression
        if name[:3] == "DXT":
            raw = img.tobytes()
        elif name[:3] == "ETC":
            r,g,b,a = img.split()
            raw = Image.merge('RGBA', (b,g,r,a)).tobytes()
        
        # compress
        data = enc(raw, img.width, img.height)

        # decompress
        dimg = Image.frombytes("RGBA", img.size, dec(data, img.width, img.height), "raw", "BGRA")

        # add to composite image
        comp.paste(dimg, (img.width*(i+1), 0))

    # save composite image
    comp.save(os.path.splitext(fp)[0]+".png")
```

## Functions

* all functions accept only arguments, no keywords
* **the data has to be RGBA/BGRA for the RGB functions as well**
* **all __DXT__ compressions require data in the __RGBA__ format**
* **all __ETC__ compressions require data in the __BGRA__ format**

### compress_to_dxt1

*Compresses RGBA to DXT1*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_dxt1_dither

*Compresses RGBA to DXT1 Dither*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_dxt5

*Compresses RGBA to DXT5*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc1

*Compresses RGBA to ETC1 RGB*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc1_dither

*Compresses RGBA to ETC1 Dither*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc1_alpha

*Compresses A to ETC1 Alpha*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc2_rgb

*Compresses RGBA to ETC2 RGB*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc2_rgba

*Compresses RGBA to ETC2 RGBA*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc2_alpha

*Compresses RGBA to ETC2 Alpha*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```


%package help
Summary:	Development documents and examples for etcpak
Provides:	python3-etcpak-doc
%description help
# etcpak

[![PyPI supported Python versions](https://img.shields.io/pypi/pyversions/etcpak.svg)](https://pypi.python.org/pypi/etcpak)
[![Win/Mac/Linux](https://img.shields.io/badge/platform-windows%20%7C%20macos%20%7C%20linux-informational)]()
[![MIT](https://img.shields.io/pypi/l/etcpak.svg)](https://github.com/K0lb3/etcpak/blob/master/LICENSE)
[![Build Status](https://github.com/K0lb3/etcpak/workflows/CI/badge.svg?branch=master)](https://github.com/K0lb3/etcpak/actions?query=workflow%3A%22CI%22)

A python wrapper for [wolfpld/etcpak](https://github.com/wolfpld/etcpak)

Some changes were made to the original code to make it cross-platform compatible.

1. [Installation](https://github.com/K0lb3/etcpak#installation)
2. [Example](https://github.com/K0lb3/etcpak#example)
3. [Functions](https://github.com/K0lb3/etcpak#functions)

## Installation

```cmd
pip install etcpak
```

or download/clone the git and use

```cmd
python setup.py install
```

## Example

```python
from PIL import Image
import etcpak

# load image
img = Image.open(file_path)

# get image data
img_data = img.convert("RGBA").tobytes()

# compress data
compressed = etcpak.compress_to_dxt5(img_data, img.width, img.height)
```

__composite image for format comparission__
```python
import os
import etcpak
import texture2ddecoder
from PIL import Image

FORMATS = [
    ("DXT1", etcpak.compress_to_dxt1, texture2ddecoder.decode_bc1),
    ("DXT1 Dither", etcpak.compress_to_dxt1_dither, texture2ddecoder.decode_bc1),
    ("DXT5", etcpak.compress_to_dxt5, texture2ddecoder.decode_bc3),
    ("ETC1", etcpak.compress_to_etc1, texture2ddecoder.decode_etc1),
    ("ETC1 Dither", etcpak.compress_to_etc1_dither, texture2ddecoder.decode_etc1),
    ("ETC2 RGB", etcpak.compress_to_etc2_rgb, texture2ddecoder.decode_etc2),
    ("ETC2 RGBA", etcpak.compress_to_etc2_rgba, texture2ddecoder.decode_etc2a8)
]

p = "S:\\Pictures"
for fp in os.listdir(p):
    if not fp[-4:] in [".png", ".jpg", ".bmp", "jpeg"]:
        continue
    # load image and adjust format and size
    print(fp)
    img = Image.open(os.path.join(p, fp)).convert("RGBA")
    img = img.crop((0,0,img.width-img.width%4, img.height-img.height%4))
    
    # create composite image
    comp = Image.new("RGBA", (img.width*8, img.height))
    comp.paste(img, (0, 0))
    print(img.width * img.height * 4)

    # iterate over all formats
    for i, (name, enc, dec) in enumerate(FORMATS):
        print(name)
        # make sure that the channel order is correct for the compression
        if name[:3] == "DXT":
            raw = img.tobytes()
        elif name[:3] == "ETC":
            r,g,b,a = img.split()
            raw = Image.merge('RGBA', (b,g,r,a)).tobytes()
        
        # compress
        data = enc(raw, img.width, img.height)

        # decompress
        dimg = Image.frombytes("RGBA", img.size, dec(data, img.width, img.height), "raw", "BGRA")

        # add to composite image
        comp.paste(dimg, (img.width*(i+1), 0))

    # save composite image
    comp.save(os.path.splitext(fp)[0]+".png")
```

## Functions

* all functions accept only arguments, no keywords
* **the data has to be RGBA/BGRA for the RGB functions as well**
* **all __DXT__ compressions require data in the __RGBA__ format**
* **all __ETC__ compressions require data in the __BGRA__ format**

### compress_to_dxt1

*Compresses RGBA to DXT1*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_dxt1_dither

*Compresses RGBA to DXT1 Dither*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_dxt5

*Compresses RGBA to DXT5*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc1

*Compresses RGBA to ETC1 RGB*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc1_dither

*Compresses RGBA to ETC1 Dither*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc1_alpha

*Compresses A to ETC1 Alpha*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc2_rgb

*Compresses RGBA to ETC2 RGB*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc2_rgba

*Compresses RGBA to ETC2 RGBA*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```

### compress_to_etc2_alpha

*Compresses RGBA to ETC2 Alpha*
```
:param data: RGBA data of the image
:type data: bytes
:param width: width of the image
:type width: int
:param height: height of the image
:type height: int
:returns: compressed data
:rtype: bytes"
```


%prep
%autosetup -n etcpak-0.9.8

%build
%py3_build

%install
%py3_install
install -d -m755 %{buildroot}/%{_pkgdocdir}
if [ -d doc ]; then cp -arf doc %{buildroot}/%{_pkgdocdir}; fi
if [ -d docs ]; then cp -arf docs %{buildroot}/%{_pkgdocdir}; fi
if [ -d example ]; then cp -arf example %{buildroot}/%{_pkgdocdir}; fi
if [ -d examples ]; then cp -arf examples %{buildroot}/%{_pkgdocdir}; fi
pushd %{buildroot}
if [ -d usr/lib ]; then
	find usr/lib -type f -printf "/%h/%f\n" >> filelist.lst
fi
if [ -d usr/lib64 ]; then
	find usr/lib64 -type f -printf "/%h/%f\n" >> filelist.lst
fi
if [ -d usr/bin ]; then
	find usr/bin -type f -printf "/%h/%f\n" >> filelist.lst
fi
if [ -d usr/sbin ]; then
	find usr/sbin -type f -printf "/%h/%f\n" >> filelist.lst
fi
touch doclist.lst
if [ -d usr/share/man ]; then
	find usr/share/man -type f -printf "/%h/%f.gz\n" >> doclist.lst
fi
popd
mv %{buildroot}/filelist.lst .
mv %{buildroot}/doclist.lst .

%files -n python3-etcpak -f filelist.lst
%dir %{python3_sitearch}/*

%files help -f doclist.lst
%{_docdir}/*

%changelog
* Wed May 10 2023 Python_Bot <Python_Bot@openeuler.org> - 0.9.8-1
- Package Spec generated