Release 0.2.1

### Fixed

- Fixed broken transparency on palettized PNG files

### Changed

- Changed which wheels are built by the CI. There are no changes to OS or Python version compatibility if you compile from source.
	- Stopped building Python 3.7 wheels
	- Stopped building macOS universal wheels
	- Wheels for macOS now require macOS 12 or later
	- Included macOS ARM wheels 
	- Included Python 3.12 wheels

.github/dependabot.yml

@@ -7,4 +7,10 @@ updates:
     target-branch: "dev"
     schedule:
       # Check for updates to GitHub Actions every weekday
-      interval: "daily"
+      interval: "daily"
+      
+   # Maintain dependencies for pip
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/python-package.yml

@@ -45,15 +45,13 @@ jobs:
           path: dist/*.tar.gz
 
   build-wheels:
-    name: Build Wheels on ${{ matrix.os }} ${{ matrix.arch[0] }}
+    name: Build Wheels on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ macos-11, windows-latest, ubuntu-latest ]
+        # macos-13 is an intel runner, macos-14 is apple silicon
-        arch: [ ['x86', 'x86_64', 'AMD64', 'x86_64' ] ] #[suffix, mac, windows, linux] arch names
+        os: [ubuntu-latest, windows-latest, macos-13, macos-14]
-        include:
+        linux_arch: [ 'x86_64' ] #[suffix, mac, windows, linux] arch names
-          - os: ubuntu-latest
-            arch: [ 'ARM', 'arm64', 'ARM64', 'aarch64' ]
 
     steps:
       - uses: actions/checkout@v3
@@ -71,17 +69,19 @@ jobs:
           sudo tar fvxz openmp-*.tar.gz -C /
 
       - name: Install QEMU
-        # install QEMU if building for arm linux
+        # install QEMU if building for linux
         uses: docker/setup-qemu-action@v2
-        if: runner.os == 'linux' && matrix.arch[3] == 'aarch64'
+        if: runner.os == 'linux' 
         with:
           platforms: arm64
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.11.2
+        uses: pypa/cibuildwheel@v2.18.1
         env:
-          MACOSX_DEPLOYMENT_TARGET: "10.15"
+          MACOSX_DEPLOYMENT_TARGET: "12"
-          CIBW_ARCHS_LINUX: ${{ matrix.arch[3] }}
+          CIBW_ARCHS_LINUX: 'x86_64 aarch64'
+          CIBW_ARCHS_MACOS: 'native'
+          CIBW_SKIP: 'cp37*'
 
       - name: Upload Wheels
         uses: actions/upload-artifact@v3
@@ -139,4 +139,4 @@ jobs:
           name: ${{ env.VERSION_TITLE }}
           body_path: RELEASE.md
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

CHANGELOG.md

@@ -2,11 +2,33 @@
 
 All notable changes to this project will be documented in this file
 
-## Unreleased
+## 0.2.1 - 2024-06-03
+
+### Fixed
+
+- Fixed broken transparency on palettized PNG files
+
+### Changed
+
+- Changed which wheels are built by the CI. There are no changes to OS or Python version compatibility if you compile from source.
+	- Stopped building Python 3.7 wheels
+	- Stopped building macOS universal wheels
+	- Wheels for macOS now require macOS 12 or later
+	- Included macOS ARM wheels 
+	- Included Python 3.12 wheels
+
+
+## 0.2.0 - 2023-06-21
 
 ### Changed
 
 - Updated Pybind11 to version 3.10, adding Python 3.11 support
+- Updated install instructions in readme to reflect availability on PyPI
+- Encode now skips .dds files in its input to prevent needless re-encoding
+
+### Added
+
+- Added the `-n` option for bc3 encoding to perform a BC3nm swizzle
 
 
 ## 0.1.3 - 2022-04-13

README.md

@@ -9,15 +9,32 @@ comparable to the original library.
 
 ## Installation
 
-To install, first clone this repo and cd into it, then run:
+### From Wheel (Easiest)
+
+To install, run
+
+```shell
+pip install quicktex
+```
+
+If you are on macOS, You need to install openMP from homebrew:
+
+```shell
+brew install libomp
+```
+
+### From Source
+
+To build from source, first clone this repo and cd into it, then run:
 
 ```shell
 git submodule update --init
 pip install .
 ```
+
 and setuptools will take care of any dependencies for you.
 
-If you are on macOS, it is recommended to first install openMP from homebrew to enable 
+If you are on macOS, it is recommended to first install openMP from homebrew to enable
 multithreading, since it is not included in the default Apple Clang install:
 
 ```shell
@@ -31,8 +48,6 @@ required dependencies for them, install with options like so:
 pip install .[tests,stubs,docs]
 ```
 
-Quicktex will be available on Pypi once it is out of alpha.
-
 ## Usage
 
 ```

pyproject.toml

@@ -46,7 +46,7 @@ docs = [
 stubs = ["pybind11-stubgen"]
 
 [project.urls]
-Docs = "https://quicktex.readthedocs.io/en/"
+Docs = "https://quicktex.readthedocs.io/en/latest/"
 Source = "https://github.com/drewcassidy/quicktex"
 Changelog = "https://github.com/drewcassidy/quicktex/blob/main/CHANGELOG.md"
 

quicktex/cli/common.py

@@ -40,7 +40,7 @@ def path_pairs(inputs, output, suffix, extension):
     """
 
     if len(inputs) < 1:
-        raise click.BadArgumentUsage('No input files were provided.')
+        raise click.BadArgumentUsage('No valid input files were provided.')
 
     inpaths = [pathlib.Path(i) for i in inputs]
 

quicktex/cli/encode.py

@@ -36,7 +36,8 @@ def encode():
     help="Output file or directory. If outputting to a file, input filenames must be only a single item. By default, files are decoded in place.",
 )
 @click.argument('filenames', nargs=-1, type=click.Path(exists=True, readable=True, dir_okay=False))
-def encode_format(encoder, four_cc, flip, remove, suffix, output, filenames):
+def encode_format(encoder, four_cc, flip, remove, suffix, output, filenames, swizzle=False):
+    filenames = [f for f in filenames if not f.endswith('.dds')]
     path_pairs = common.path_pairs(filenames, output, suffix, '.dds')
 
     with click.progressbar(
@@ -48,6 +49,11 @@ def encode_format(encoder, four_cc, flip, remove, suffix, output, filenames):
             if flip:
                 image = image.transpose(Image.FLIP_TOP_BOTTOM)
 
+            if swizzle:
+                bands = image.split()
+                one = Image.new('L', image.size, 0xFF)
+                image = Image.merge('RGBA', (one, bands[1], bands[1], bands[0]))
+
             dds.encode(image, encoder, four_cc).save(outpath)
 
             if remove:
@@ -107,8 +113,11 @@ def encode_auto(level, black, threecolor, flip, remove, suffix, output, filename
 
     bc1_encoder = quicktex.s3tc.bc1.BC1Encoder(level, mode)
     bc3_encoder = quicktex.s3tc.bc3.BC3Encoder(level)
+    filenames = [f for f in filenames if not f.endswith('.dds')]
     path_pairs = common.path_pairs(filenames, output, suffix, '.dds')
 
+    assert len(filenames) > 0
+
     with click.progressbar(
         path_pairs, show_eta=False, show_pos=True, item_show_func=lambda x: str(x[0]) if x else ''
     ) as bar:
@@ -175,9 +184,16 @@ def encode_bc1(level, black, threecolor, **kwargs):
     default=18,
     help='Quality level to use. Higher values = higher quality, but slower.',
 )
-def encode_bc3(level, **kwargs):
+@click.option(
+    '-n/-N',
+    '--normal/--no-normal',
+    type=bool,
+    default=False,
+    help='Perform a BC3nm swizzle, copying the red channel into the alpha [default: no-normal]',
+)
+def encode_bc3(level, normal, **kwargs):
     """Encode images to BC4 (RGBA, 8-bit interpolated alpha)."""
-    encode_format.callback(quicktex.s3tc.bc3.BC3Encoder(level), 'DXT5', **kwargs)
+    encode_format.callback(quicktex.s3tc.bc3.BC3Encoder(level), 'DXT5', swizzle=normal, **kwargs)
 
 
 @click.command('bc4')

quicktex/dds.py

@@ -275,6 +275,7 @@ def read(path: os.PathLike) -> DDSFile:
 def encode(image: Image.Image, encoder, four_cc: str, mip_count: typing.Optional[int] = None) -> DDSFile:
     if image.mode != 'RGBA' or image.mode != 'RGBX':
         mode = 'RGBA' if 'A' in image.mode else 'RGBX'
+        image.apply_transparency()  # why is this necessary what
         image = image.convert(mode)
 
     sizes = quicktex.image_utils.mip_sizes(image.size, mip_count)