ImageSharp

Commit Graph

Author	SHA1	Message	Date
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.	4 weeks ago
James Jackson-South	42f6fb6276	Revert "Potential fix for pull request finding 'Equality check on floating point values'" This reverts commit `ba4d1df1e1`.	4 weeks 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>	4 weeks ago
James Jackson-South	644cd49fc0	Update ExrDecoderCore.cs	4 weeks 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.	4 weeks 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.	4 weeks 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.	1 month 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.	1 month 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.	1 month ago
James Jackson-South	eb4bfc95ea	Add BlendWithCoverage overloads. Optimize Rgba32 compatible shuffling.	1 month ago
James Jackson-South	e5ca2782e6	Fix GIF transparency handling and dither	2 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
James Jackson-South	8f2716b567	GIF: background handling & quantizer overflow fix (#3133 ) * GIF: background handling & quantizer overflow fix * Fix tests	3 months ago
James Jackson-South	ff36e83c74	Add AllocationTrackedMemoryManager and refactor allocators (#3120 ) * Add AllocationTrackedMemoryManager and refactor allocators * Add AllocationTrackingState and refactor tracking * Cleanup * Address feedback * Introduce ApplyOptions and use in allocators * Propagate allocation tracking to lifetime guards * Address Copilot feedback * Fix multi-buffer group tracking and enforce limits * Potential fix for pull request finding Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> * Fix override accesibility --------- Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>	3 months ago
Sven Claesson	c795d81404	Fix integer overflow and bounds-checking vulnerabilities in EXR decoder (#3126 ) * Fix integer overflow and bounds-checking vulnerabilities in EXR decoder Use ulong arithmetic in CalculateBytesPerRow and block size calculations to prevent integer overflow. Add validation for DataWindow dimensions, block size limits, and row offsets outside stream bounds. * Harden EXR row offset validation * EXR: validate sizes, prevent overflows, dispose image --------- Co-authored-by: James Jackson-South <james_south@hotmail.com>	3 months ago
James Jackson-South	1e65e08fc1	Add additional unit tests to improve code coverage. Update licensing version	3 months ago
Brian Popow	c1de5b61d3	Fix mistake in inflateStream.AllocateNewBytes: Use compressedBytes instead of uncompressedBytes	3 months ago
James Jackson-South	37f534ea5d	Add ImageFrame visitor; use Buffer2D Size/Bounds + expose subregion extensions	4 months ago
Brian Popow	7ad873aaf3	Fix stylecop warnings	4 months ago
Brian Popow	2bf2e95638	Move rowsPerBlock to base compression class	4 months ago
Brian Popow	a85fe63d31	Move undoing zip compression into base class	4 months ago
Brian Popow	e917fd317a	Fix issues with pxr and pixel type uint and float	4 months ago
Brian Popow	95ee73e241	Implement pxr decompression for pixel type uint and float	4 months ago
Brian Popow	344d49d86f	Use Width Property from ExrBaseDecompressor	4 months ago
Brian Popow	39b13a46c6	Initial version decode Pxr24 compression	4 months ago
James Jackson-South	c470a9a05a	Revert "Merge pull request #3056 from SixLabors/js/accumulative-memory-limit" This reverts commit `c5624b534e`, reversing changes made to `b3f37932b6`.	4 months ago
James Jackson-South	67b9713ae0	Rename params	4 months ago
James Jackson-South	4abf307ca6	Potential fix for pull request finding 'Poor error handling: empty catch block' Co-authored-by: Copilot Autofix powered by AI <223894421+github-code-quality[bot]@users.noreply.github.com>	4 months ago
James Jackson-South	9304b57022	Use ColdPath for Block8x8F	4 months ago
James Jackson-South	66671a0e9f	Implement proper segment integrity handling & tolerant parsing	4 months ago
James Jackson-South	3b1b8956cf	Stop parsing after SOS in JPEG decoder in ProcessStartOfFrameMarker	4 months ago
James Jackson-South	ac0adfccac	Optimize Block8x8F ScaledCopy for common scales	4 months ago
James Jackson-South	cde366b5cd	Remove premature rounding during normalization	4 months ago
James Jackson-South	420ae7444c	Optimize ScaledCopyTo for common scale factors	4 months ago
James Jackson-South	6998d43c61	Update Convolution2PassProcessor{TPixel}.cs	4 months ago
James Jackson-South	dd395e1c03	Enhance metadata conversion	4 months ago
James Jackson-South	0390442fee	Fix ColorNumerics and FromVector4	4 months ago
James Jackson-South	3a879338c6	Cleanup	4 months ago
James Jackson-South	03670ab032	Revert some convolution processors	4 months ago
Brian Popow	00db2e9256	Actually use pixel type from encoder in ExrEncoderCore constructor	4 months ago
Brian Popow	ce545b7892	Fix stylecop complains	4 months ago
Brian Popow	1e69aa45ab	Add additional doc strings	4 months ago
James Jackson-South	656f53d052	Remove not-needed validate method and tests	4 months ago
James Jackson-South	e405df597f	Update settings	4 months ago
Brian Popow	15701e5e84	Write alpha channel when encoding exr images	4 months ago
Brian Popow	372299744a	Fix mistake when encoding uint pixel data: value from Rgb96.FromVector4 was not used	4 months ago
Brian Popow	29f558a801	Add test case for uint pixel type with alpha	4 months ago

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9188 Commits (e1c3013f96032e184ee35915809d09d4fea4819b)