ImageSharp

Commit Graph

Author	SHA1	Message	Date
James Jackson-South	08bc4cd8ab	Document and correct AV1 prediction decoding	1 week ago
James Jackson-South	6095963f09	Document and correct AV1 prediction	1 week ago
James Jackson-South	d498e9f48c	Parse HEIF metadata independent of order	1 week ago
James Jackson-South	ad4d01954e	Bound HEIF box parsing	1 week ago
James Jackson-South	7be9b15205	Correct HEIF file type brand handling	1 week ago
James Jackson-South	d401064cad	Handle HEIF container extensions	1 week ago
James Jackson-South	eaa93a35f7	Correct HEIF item property associations	1 week ago
James Jackson-South	4c01b0df65	Decode multi-superblock AV1 frames	1 week ago
James Jackson-South	109f702a82	Correct AV1 transform coefficient storage	1 week ago
James Jackson-South	e2966fdaa4	Correct AV1 mode neighbor lookup	1 week ago
James Jackson-South	bb335e4684	Implement AV1 chroma-from-luma reconstruction	1 week ago
James Jackson-South	686bb21601	Decode each parsed AV1 block once	1 week ago
James Jackson-South	72a294f9f7	Connect high-bit-depth AV1 reconstruction	1 week ago
James Jackson-South	361cdb29db	Implement high-bit-depth AV1 intra prediction	1 week ago
James Jackson-South	2fe862fad4	Add high-bit-depth AV1 reconstruction	1 week ago
James Jackson-South	9ef4059ee6	Correct AV1 inverse transform row traversal	1 week ago
James Jackson-South	98ab882e77	Fix AV1 still decode lifecycle	1 week ago
James Jackson-South	abe0f70ca9	Implement AV1 filter intra prediction	1 week ago
James Jackson-South	1d94792c54	Correct AV1 intra prediction	1 week ago
James Jackson-South	5e2908114d	Support high-bit-depth AV1 color conversion	1 week ago
James Jackson-South	61b9cd4cb6	Support subsampled AV1 color output	1 week ago
James Jackson-South	29005ec629	Correct AV1 YUV444 color conversion	1 week ago
James Jackson-South	d7ab1e716a	Fix HEIF tests after upstream merge	1 week ago
James Jackson-South	7291986928	Switch Zlib compression to BCL stream Replace the custom zlib deflate stack with `System.IO.Compression.ZLibStream`, and add `ChunkedWriteStream` to keep PNG/TIFF/EXR output framed in fixed-size segments. Update the affected compressors and tests to match the new streaming path.	2 weeks ago
James Jackson-South	9ee7d1dd5b	Fix tiled CCITT decompressor width handling Use tile width (instead of full image width) when creating T4/T6/Modified Huffman decompressors for tiled TIFF decoding, preventing row-size mismatches and false overrun failures. Also standardize the CCITT overrun error message and add regression coverage for both strip-based and tiled reporter samples that must throw when decoded pixels exceed image width.	2 weeks ago
Stefan Nikolei	8930d4fd6f	Migrate to xUnitV3	2 weeks ago
James Jackson-South	e8892ecd8a	Guard CCITT runs that exceed row width Adds explicit bounds checks before writing decoded CCITT runs in both T4 and Modified Huffman TIFF decompressors, preventing oversized runs from writing past the current row. Error messages were also standardized/capitalized for CCITT parsing failures. Includes new regression tests using compressed TIFF PoCs to verify decoding now throws ImageFormatException with the expected width-overrun message.	2 weeks ago
Stefan Nikolei	eb549bcda3	Use Collection expressions and Target-typed new 1. Collection expressions (`[]` syntax) replacing `new List<T>()`, `new T[] {}`, `.ToArray()`, etc. 2. Target-typed `new()` expressions where appropriate 3. Using spread elements (`[.. collection]`) instead of `.ToArray()` and `.Concat().ToArray()` 4. Adding `#pragma warning disable/restore CS0649` for intentionally unassigned struct fields	2 weeks ago
James Jackson-South	8ca712019e	Fix 16-bit binary PBM sample byte order The binary PGM and PPM formats store 16-bit samples most significant byte first. The decoder and encoder read and wrote them in native little-endian order, so every wide sample was byte swapped. This corrects the swizzled colors reported for 16-bit PPM images. - Reverse the sample byte order in BinaryDecoder and BinaryEncoder. - Fix integer division in the max pixel value upscale factor. - Add exact-value, reference-decoder, upscale, and round-trip tests. - Add a 16-bit PPM test image and its Magick-anchored reference PNG. - Document the binary decoder and encoder in full.	4 weeks ago
James Jackson-South	ed64ea7197	Reject ICO entries at stream-end offset Tightened icon frame bounds validation to treat `ImageOffset == available` as invalid, preventing non-empty resources from starting at the exclusive end of the icon stream. Added a regression test that mutates an ICO directory entry to this boundary value and verifies both `Decode` and `Identify` throw `InvalidImageContentException` with the expected message.	1 month ago
James Jackson-South	eadb2a6c79	Handle oversized ANI chunks and partial icon masks	1 month ago
James Jackson-South	e9aa4bffbb	Address ANI and icon review feedback	1 month ago
James Jackson-South	db5b03d894	Complete ANI, ICO, and CUR codec support	1 month ago
James Jackson-South	043c264aef	Flatten JPEG ICC color conversion	1 month ago
James Jackson-South	1c726da0df	Clean up normalized SIMD pipelines	1 month ago
James Jackson-South	ca126a5f4a	Remove replaced SIMD implementations	1 month ago
James Jackson-South	9d1aa66f67	Normalize PNG filter encoding	1 month ago
James Jackson-South	e9db3675e9	Normalize JPEG color conversion SIMD	1 month ago
James Jackson-South	e2b43407cc	Handle ulong values for EXIF Long writes Fixes EXIF serialization when `ExifLong8Array` downgrades to `ExifDataType.Long` but still stores values as `ulong`. `ExifWriter.WriteValue` now handles `ulong` inputs in the `Long` branch by writing 32-bit values, and a BigTIFF metadata test verifies mixed in-range values are written correctly as two little-endian `uint`s.	1 month ago
James Jackson-South	494d2dd97b	Clone TIFF profiles into image metadata Update TIFF metadata creation to build ImageMetadata after IFD tag processing and copy root-frame EXIF/ICC/IPTC/XMP profiles to image scope via deep clones. This keeps image-level metadata in sync for downstream single-frame encoders while preserving independent mutability between frame and image metadata. Tests now cover preserved ICC handling and verify image-level profile presence, equality, and non-shared instances for EXIF/XMP/IPTC, including ignore-metadata behavior.	1 month ago
James Jackson-South	dfdc0734e3	Validate CgBI chunk order in PNG decoder Handle CgBI chunks consistently when they appear after IHDR by routing both identify/decode paths through a new `ReadCgbiChunk()` method that immediately validates already-read headers. This prevents invalid CgBI images from bypassing compatibility checks when chunk order is unusual. Added PNG tests that reorder the first two chunks to confirm incompatible CgBI headers now throw in both identify and decode flows. Also renames `ZlibInflateStream` to `ZlibInflateReader` and updates EXR/PNG/TIFF call sites for clearer intent.	1 month ago
James Jackson-South	3d3f49fab8	Refine alpha conversion and AOT seeding Introduce explicit associated/unassociated pixel conversion APIs across `IPixel` and `PixelOperations`, and rework associated-alpha operations to use representation-aware bulk hooks. Update pixel implementations, converters, blenders, and generated code to consistently apply `Premultiply`/`UnPremultiply` semantics, plus SIMD-backed conversion paths for half and signed formats. Fix codec and processing behavior where alpha handling was incorrect or lossy (notably TIFF/EXR decode/encode, convolution/resize/filter/normalization/dithering paths), and add targeted tests for these cases. Expand AOT compiler roots (including EXR and additional pixel/processor coverage), add a new public API test project for pixel-operations extensibility, and add broad alpha-representation and quantization regression coverage.	2 months ago
James Jackson-South	4b07920c7c	Fix alpha association and SIMD rounding parity Refactors `Color` to track both exposed and stored alpha representations, adds `ToScaledVector4(PixelAlphaRepresentation)`, and adjusts pixel conversion paths so associated formats preserve canonical values without unnecessary unpremultiply/reassociate loss. This also updates equality/hash behavior to compare canonical scaled values. SIMD helpers are split into `MultiplyAddEstimate` vs `FusedMultiplyAdd`, with byte-to-float normalization updated to match scalar rounding exactly across vector widths. JPEG converters, resize kernels, and Porter-Duff/associated-alpha blending paths were updated to use the appropriate helper for either fast estimate or strict fused rounding semantics. Tests were expanded substantially (including exhaustive component/alpha cases and fused-order checks), incidental test cleanup was applied, benchmark comment snapshots were refreshed, and one black/white reference output image was updated.	2 months ago
Erik White	5472d6918a	Use FeatureTestRunner for all instruction sets	3 months ago
Erik White	fb207199f5	Clean up/clarify test helper method	3 months ago
James Jackson-South	e5ca2782e6	Fix GIF transparency handling and dither	3 months ago
Erik White	a68921cac3	Break out cgbi helper methods	3 months ago
Erik White	29ae5f8409	Guard CgBI bit depth and color type	3 months ago
James Jackson-South	a3e9cc6fd4	Fix in-place shuffles and vectorize PNG CgBI transform	3 months ago
Erik White	5d206ec10f	Add test data for RGB24	3 months ago

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2464 Commits (ed751cb3ccdfaa74bbff95cf92210ea7d47cb318)