ImageSharp

Commit Graph

Author	SHA1	Message	Date
James Jackson-South	043c264aef	Flatten JPEG ICC color conversion	1 month ago
James Jackson-South	3c3d523954	Flatten pixel blender hierarchy	1 month ago
James Jackson-South	b54c5caf5b	Fix tensor negation on ARM64	1 month ago
James Jackson-South	979a9237c5	Align tensor primitive dispatch with runtime	1 month ago
James Jackson-South	fb7ed72629	Use AVX-512 for byte tensor addition	1 month ago
James Jackson-South	267802a4b6	Optimize ICC LUT normalization	1 month ago
James Jackson-South	368498133a	Fix Bokeh normalization on .NET 10	1 month ago
James Jackson-South	43d99b46dc	Use tensor multiplication for Bokeh kernels	1 month ago
James Jackson-South	41f17ba6b5	Use tensor division for Gaussian kernels	1 month ago
James Jackson-South	c1dc1aedb4	Use tensor negation for sharpen kernels	1 month ago
James Jackson-South	49d20566a3	Use tensor addition for histogram offsets	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	71d27f4b85	Correct SIMD helper accessibility	1 month ago
James Jackson-South	9d1aa66f67	Normalize PNG filter encoding	1 month ago
James Jackson-South	501afd48c1	Normalize stateful Vector4 transforms	1 month ago
James Jackson-South	5a2fbbe795	Normalize packed pixel conversion shuffles	1 month ago
James Jackson-South	873c64ec12	Normalize pixel blending SIMD traversal	1 month ago
James Jackson-South	e9db3675e9	Normalize JPEG color conversion SIMD	1 month ago
James Jackson-South	ebe5cc64da	Add TensorPrimitives compatibility implementation	1 month ago
James Jackson-South	395c8bdb65	Update AotCompilerTools.cs	1 month ago
James Jackson-South	b142dbacff	Add AOT compiler seeds for ICO, CUR, QOI formats - Add ICO, CUR, and QOI encoder/decoder seeding in AotCompilerTools - Introduce SeedPixelOperations() to explicitly seed all built-in pixel format PixelOperations<T> specializations for Mono WASM AOT - Add [DynamicDependency] on Configuration constructors to keep the seed graph visible to .NET trimmers - Add AI coding guideline files (AGENTS.md, CLAUDE.md, GEMINI.md, copilot-instructions.md) - Update .gitattributes to treat .a, .dylib, and .so as binary	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	3d89f941d4	Fix degeneracy check for resize transforms Use exact zero determinant checks in `TransformUtilities.IsDegenerate` for `Matrix3x2` and `Matrix4x4` instead of epsilon-based near-zero detection, preventing valid transforms from being treated as degenerate during extreme downscales. Added a regression test for issue #3156 to verify resizing large square images (1024/2048) to 1x1 succeeds and preserves the expected pixel.	1 month ago
James Jackson-South	e1c3013f96	Fix bulk RGBA-compatible conversion bounds Slice the destination span to source length in `Vector4Converters.RgbaCompatible.FromVector4` so SIMD/scalar tails never process spare destination capacity. Expanded pixel-format tests to run across hardware intrinsic configurations, added dedicated RGB24/BGR24 bulk conversion coverage with sentinel checks for out-of-range writes, and relaxed associated-alpha half packing assertions to treat NaN payload differences as valid IEEE behavior.	2 months ago
James Jackson-South	42f6fb6276	Revert "Potential fix for pull request finding 'Equality check on floating point values'" This reverts commit `ba4d1df1e1`.	2 months ago
James Jackson-South	ba4d1df1e1	Potential fix for pull request finding 'Equality check on floating point values' Co-authored-by: Copilot Autofix powered by AI <223894421+github-code-quality[bot]@users.noreply.github.com>	2 months ago
James Jackson-South	644cd49fc0	Update ExrDecoderCore.cs	2 months ago
James Jackson-South	2ffa9fb07b	Add binary16 pixel formats and scaling fixes Introduces `RgbaHalf` and `RgbaHalfP` plus bulk pixel-operation support, updates AOT seeding, and routes EXR decoding through the new scaled conversions. Also fixes scaled/native range handling for half, SNORM, and signed integer pixel formats, and expands tests for the new layouts and edge cases.	2 months 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
James Jackson-South	c4683902a4	Add associated-alpha pixel formats Introduce Rgba32P, Bgra32P, Argb32P, Abgr32P, NormalizedByte4P, and HalfVector4P. Add representation-aware scalar and bulk conversions, optimized pixel operations, and associated-alpha blending across all Porter-Duff modes. Include comprehensive conversion, layout, blending, and performance coverage.	2 months ago
James Jackson-South	0b685ab034	Fix convolution sampling for bounds smaller than the kernel radius KernelSamplingMap.CorrectBorder sliced the offset span by radius * kernelSize, so bounds narrower than the kernel radius threw ArgumentOutOfRangeException (GaussianBlur of a 130x8 region with sigma 10, for example), and bounds exactly equal to the radius let Bounce offsets escape the sampling range by folding an overshoot of a full extent to min - 1. Route bounds no larger than the radius through an exact per-mode correction that folds each offset into range: clamp for Repeat, periodic reflection for Mirror and Bounce, and true modulo for Wrap. The single-pass corrections are unchanged for larger bounds.	2 months ago
James Jackson-South	eb4bfc95ea	Add BlendWithCoverage overloads. Optimize Rgba32 compatible shuffling.	2 months ago
Erik White	5472d6918a	Use FeatureTestRunner for all instruction sets	3 months ago
James Jackson-South	e5ca2782e6	Fix GIF transparency handling and dither	3 months ago
Erik White	47678c748d	Use single buffer for shuffle bytes	3 months ago
Erik White	3b37d5552d	Remove redundant floor. Float to int conversion will already truncate toward zero	3 months ago
Erik White	49dc1951db	Fix read stream byte read semantics	3 months ago
Erik White	e6f09d6616	Use constant or static values where possible	3 months ago
Erik White	9dfc0ca044	Remove unnecessary instruction set check	3 months ago
Erik White	a68921cac3	Break out cgbi helper methods	3 months ago
Erik White	fdc15d283e	Separate Zlib header validation fom stream reading	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	4f85600cb8	Improve ApplyCgbiTransform	3 months ago
Erik White	3e843a06a2	Implement CgBI support	3 months ago
James Jackson-South	8e6cab957b	Validate PBM max pixel value	3 months ago

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9685 Commits (beb2ab86ce5e4052c667df30af8a48a860814031)