pixer 0.0.12

High-performance Dart image manipulation backed by Rust FFI for resizing, cropping, encoding, and thumbnail generation in apps and tools.

0.0.12

• Native binaries no longer include image codecs outside the supported formats (AVIF, EXR, HDR, QOI, TGA, DDS, PNM, Farbfeld), shrinking them by roughly 60% (macOS arm64: 4.9 MB to 1.8 MB). Auto-detected loading of those formats now throws UnsupportedFormatException.
• Added the formats hook user define to compile in only selected formats. Setting it builds the native library from source and requires a Rust toolchain.
• Resizing 8-bit images is 10–15x faster on native platforms: it now uses SIMD and splits large images across CPU cores (Apple M-series: 4K Lanczos3 upscale from 90 ms to 7 ms). 16-bit and floating-point images use the previous resizer.
• Resizing images with alpha now premultiplies alpha, so transparent pixels no longer bleed color into edges. Resized pixel values differ slightly from previous versions.
• Breaking: Loaded images are now rotated and flipped upright according to their EXIF orientation, so width and height are swapped for photos taken in portrait orientation. Malformed EXIF data is ignored.

0.0.11

• Breaking: Operations on Pixer (resize, crop, blur, ...) now return a lazy PixerPipeline instead of a new Pixer. Chain operations and finish with encode, saveToFile, or toImage(); the whole chain runs in one native call. Add .toImage() where a Pixer is still needed.
• Breaking: Removed Pixer.batch() and renamed PixerBatch to PixerPipeline. Pipelines are now immutable, so branching from a shared prefix no longer leaks operations between branches.
• Breaking: Image-dependent errors such as out-of-bounds crop are now thrown by the terminal call, not by the operation. Argument validation still happens when an operation is added.
• Breaking: Merged Pixer.fromMemoryWithFormat(data, format) into Pixer.fromMemory(data, format: format).
• Exported ImageErrorCode, the type of PixerException.code.
• encode and saveToFile now run through the pipeline path, so native failures raise specific exceptions (e.g. InvalidDimensionsException) instead of UnknownException. Out-of-bounds crop is now reported by the native engine.
• Pipelines validate every operation before processing any pixels.
• Downloaded binaries are now verified with SHA-256 instead of MD5.
• Breaking (native ABI 2): Reduced the C API to pixer_load, pixer_load_from_memory (format or PIXER_FORMAT_DETECT), pixer_get_metadata, and the pixer_batch_* functions. Every fallible function returns an ImageErrorCode and writes results through out-parameters; formats are passed as validated u32 values. Rebuild binaries for this package revision.

0.0.10

• Fixed zero blur changing pixels and rejected subnormal blur values before they can panic in Rust.

• Preserved alpha and bit depth in grayscale conversion and prevented extreme brightness offsets from overflowing.

• Accounted for actual native pixel-buffer bytes, including 16-bit and floating-point images.

• Added native/WASM ABI version checks and compile-time WASM layout checks. Rebuild binaries for this package revision.

• Added a minimal Flutter showcase for Android, iOS, Linux, macOS, Windows, and WebAssembly.

• Added browser support backed by the Rust engine compiled to WebAssembly.

• Added Pixer.initialize() for loading the WebAssembly module on web.

• Shared image validation, batching, encoder configuration, and error mapping across native and web backends.

• Encoding now belongs to the image backend; use Pixer.encode(encoder) instead of the FFI-only PixerEncoder.encode(handle) helper.

• Breaking: Renamed the native encoding symbols to pixer_encode, pixer_encode_jpeg, and pixer_batch_encode; the JPEG function no longer takes a redundant format argument.

0.0.9

• Fixed the workspace benchmark package path so analysis and publish validation run successfully.
• Added lazy operation batches with toImage(), encode(), and saveToFile() terminals.

0.0.8

• Provide example and improve pubdev points.

0.0.7

• Added externalSize to the NativeFinalizer, which significantly improves Garbage Collection performance.

0.0.6

• Breaking: Merged Pixer.encodeWith(PixerEncoder) into Pixer.encode(PixerEncoder); the old encode(ImageFormatEnum) overload is gone. Use image.encode(const PixerPngEncoder()) etc.
• Breaking: Renamed ColorType.l / ColorType.la to ColorType.luminance / ColorType.luminanceAlpha. ColorType.fromValue now throws ArgumentError on unknown codes instead of defaulting to rgba.
• Breaking: Removed unused LoadException (load failures already throw specific exceptions).
• Fixed: Pixer.contrast docs: 0.0 is the neutral value (not 1.0).
• Docs: Clarified Pixer.resize semantics (fits within the bounds; use resizeExact for exact sizes).
• Docs: Documented Pixer.brightness clamping and practical range.
• Docs: Added doc comments to all generated FilterTypeEnum, ImageFormatEnum, and ImageErrorCode variants via the Rust source.
• Refactor: Replaced native_toolchain_rs with native_toolchain_rust.
• Refactor: Simplified Rust code, removed api.rs.
• Refactor: Simplified encoder API and native implementation to keep only JPEG quality as a configurable encoding option.
• Refactor: Marked PixerMetadata final.

0.0.5

• Breaking: Replaced Pixer.encode(ImageFormatEnum, {quality}) with encoder objects.
• Added PixerJpegEncoder(quality: ...) with validation.

0.0.4

• Added JPEG quality support to Pixer.encode() via quality.
• Improved binding generation to resolve the active macOS SDK with xcrun.

0.0.3

• Fixed build hook for web platform.

0.0.2

• Breaking: invert() now returns a new Pixer instead of mutating in-place.
• Breaking: Removed deprecated resizeToFit() method (use resize() instead).
• Breaking: Renamed FFI functions to align with Rust image crate conventions:
  • encode -> write_to
  • crop -> crop_imm
  • rotate_90/180/270 -> rotate90/180/270
  • flip_horizontal/vertical -> fliph/flipv
  • brightness -> brighten
  • contrast -> adjust_contrast
• Added metadata caching to avoid redundant FFI calls for width, height, colorType.
• Added bounds validation for crop() - now throws InvalidDimensionsException if crop rectangle exceeds image bounds.
• Added hash verification for native assets.
• Added generate_bindings.sh script to automate cbindgen + ffigen workflow.
• Improved error handling in load functions - now throws specific exceptions (IoException, DecodingException, UnsupportedFormatException) instead of generic LoadException.
• Improved documentation for blur() method.

0.0.1

• Finalized the Dart API with typed exceptions.
• Added context to exceptions for clearer error messages.
• Added a finalizer and isDisposed for safer resource handling.