ImageSharp

Commit Graph

Author	SHA1	Message	Date
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 days 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.	4 days ago
James Jackson-South	e5ca2782e6	Fix GIF transparency handling and dither	1 month ago
James Jackson-South	a3e9cc6fd4	Fix in-place shuffles and vectorize PNG CgBI transform	2 months ago
Erik White	5d206ec10f	Add test data for RGB24	2 months ago
Erik White	70a49b1d9d	Add tests for Identify	2 months ago
Erik White	3e843a06a2	Implement CgBI support	2 months ago
James Jackson-South	8e6cab957b	Validate PBM max pixel value	2 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>	2 months ago
James Jackson-South	1e65e08fc1	Add additional unit tests to improve code coverage. Update licensing version	2 months ago
James Jackson-South	37f534ea5d	Add ImageFrame visitor; use Buffer2D Size/Bounds + expose subregion extensions	3 months ago
Brian Popow	7d38e50d3f	Use better test image for float pixel type created with reference encoder	3 months ago
Brian Popow	e8c9d6db9d	Add test case for pxr compression with pixel type uint	3 months ago
Brian Popow	efa1f8bbae	Add test case for pxr compression with pixel type float	3 months ago
Brian Popow	d805b9b50c	Add test case for pxr24 compressed image	3 months ago
James Jackson-South	66671a0e9f	Implement proper segment integrity handling & tolerant parsing	3 months ago
James Jackson-South	3b1b8956cf	Stop parsing after SOS in JPEG decoder in ProcessStartOfFrameMarker	3 months ago
James Jackson-South	cde366b5cd	Remove premature rounding during normalization	3 months ago
James Jackson-South	dd395e1c03	Enhance metadata conversion	3 months ago
Brian Popow	d98ffac34c	Add test for setting pixel type for encoding exr images	3 months ago
Brian Popow	29f558a801	Add test case for uint pixel type with alpha	3 months ago
James Jackson-South	f0ce591a64	Rename quantizer and update tests	3 months ago
James Jackson-South	90f0c0b5d4	Update and simplify quantization color caches.	3 months ago
Andreas	9569449ac4	Fix MaxFrames handling in PNG decoder - Change >= to > for correct MaxFrames boundary - Skip fdAT chunk data when hitting maxFrames in Identify to maintain stream alignment - Add tests for Identify and Load with MaxFrames	3 months ago
Andreas	a76c02f7c0	Replace test image with a smaller one. Adjusted Identify_AnimatedPng_ReadsFrameCountCorrectly to expect 48 frames instead of 50.	3 months ago
Andreas Eriksson	7b13e1df1b	Add generated animated PNG tests for Identify and Decode frame counts	4 months ago
Andreas Eriksson	ac1905328d	Fix Identify returning incorrect frame count for animated PNGs The Identify method had two bugs when processing fdAT (FrameData) chunks: 1. A spurious Skip(4) before SkipChunkDataAndCrc caused the stream to be misaligned by 4 bytes, since chunk.Length already includes the 4-byte sequence number. 2. Unlike Decode, which consumes all fdAT chunks for a frame in one shot via ReadScanlines + ReadNextFrameDataChunk, Identify processed them individually, calling InitializeFrameMetadata for each chunk and inflating the frame count. The fix removes the extra Skip(4) and adds SkipRemainingFrameDataChunks to consume all continuation fdAT chunks for a frame, mirroring how ReadNextFrameDataChunk works during decoding.	4 months ago
Brian Popow	802e275e8e	Use CompareToReferenceOutput for failing bmp tests on linux	4 months ago
Brian Popow	0c3ca3da24	Fix failing bmp tests	4 months ago
Brian Popow	a9f6dbc68b	Add compression to exr metadata	4 months ago
Brian Popow	b95663489e	Add tests for exr metadata	4 months ago
Brian Popow	c8c3656aaf	Implement GetPixelTypeInfo() for EXR	4 months ago
Brian Popow	8c0c85442c	Set exr pixel type when decoding an image	4 months ago
Brian Popow	a741e84a12	Use exact comparer as default for exr decoder tests	4 months ago
Brian Popow	53230af86b	Use tolerant comparer for B44 compression	4 months ago
Brian Popow	aa0af92faa	Use CompareToReferenceOutput for int pixel type	4 months ago
Brian Popow	d409a3b7d3	Use magick Reference decoder	4 months ago
Brian Popow	a3349efb34	Add ExrEncoder tests	4 months ago
Brian Popow	4e81c02b5d	Add test case for Issue #3093	4 months ago
Brian Popow	fc40209727	Test case for pixel type uint	4 months ago
Brian Popow	1abfe6966d	Add test image for decoding exr with float piyel type	4 months ago
Brian Popow	e4c22d8f67	Add tests for decode RGB and gray exr files	4 months ago
Brian Popow	d121039956	Add test for Identify	4 months ago
Brian Popow	faf87fbe16	Use MagickReference decoder for exr decoding tests	4 months ago
Brian Popow	b78402d524	Fix issue in ExrImageFormatDetector.cs returning wrong format	4 months ago
Brian Popow	83dba5872b	Change exr name space to SixLabors.ImageSharp.Formats.Exr	4 months ago
Brian Popow	fa52ab740f	Adjust exr decoder / encoder to ImageSharp changes	4 months ago
Brian Popow	c512b142f9	If alpha length is greater then colorTable, slice length to colorTable length	4 months ago
Brian Popow	9c9b6124f3	Add test case for alpha.Length > colorTable.Length	4 months ago
Brian Popow	8d78fe0b08	Add test case for truncated data after language tag	4 months ago

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2285 Commits (2ffa9fb07bd15364cd2c8e52f34666da225d5d85)