ImageSharp

Commit Graph

Author	SHA1	Message	Date
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.	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.	3 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.	3 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.	3 months ago
James Jackson-South	e5ca2782e6	Fix GIF transparency handling and dither	4 months ago
Erik White	5d206ec10f	Add test data for RGB24	4 months ago
Erik White	3e843a06a2	Implement CgBI support	4 months ago
James Jackson-South	8f2716b567	GIF: background handling & quantizer overflow fix (#3133 ) * GIF: background handling & quantizer overflow fix * Fix tests	4 months ago
Brian Popow	e8c9d6db9d	Add test case for pxr compression with pixel type uint	5 months ago
James Jackson-South	cde366b5cd	Remove premature rounding during normalization	6 months ago
Brian Popow	af14463b07	Add better test image for uint rgba pixel type	6 months ago
Brian Popow	29f558a801	Add test case for uint pixel type with alpha	6 months ago
Brian Popow	51463a368d	Better test image for uint pixel type	6 months ago
James Jackson-South	a9c43dc800	Convolution Replace parallel row iteration with sequential loops	6 months ago
James Jackson-South	f0ce591a64	Rename quantizer and update tests	6 months ago
Brian Popow	802e275e8e	Use CompareToReferenceOutput for failing bmp tests on linux	6 months ago
Brian Popow	0c3ca3da24	Fix failing bmp tests	6 months ago
Brian Popow	aa0af92faa	Use CompareToReferenceOutput for int pixel type	6 months ago
James Jackson-South	ae9ca4c5bf	Fix #3064 R	7 months ago
James Jackson-South	7e22a01469	Add RGB support.	8 months ago
James Jackson-South	7f402b8bb8	Allow conversion for CIE Lab and CMYK	8 months ago
James Jackson-South	d9816d12b5	Add support for ICC conversion to WEBP	8 months ago
James Jackson-South	55d6711c19	Add test	8 months ago
Socolin	33aa0c84b7	Apply ICC profile when decoding InterlacedRgba PNG	10 months ago
Socolin	bd532d6696	Add tests to check if PngDecoder apply ICC profile	10 months ago
Socolin	0582e85e49	Fix decoding tiff image with BigEndian + 64 bit / pixel + associated alpha	10 months ago
James Jackson-South	6dea233103	Fix the correct pathname part	11 months ago
James Jackson-South	d8bf8ee810	Rename files to fix casing	11 months ago
James Jackson-South	2577046429	Fix #3000	11 months ago
James Jackson-South	2f9cd4fe2b	Fix detection of canonical sRGB profiles	11 months ago
James Jackson-South	cb05fc7b79	Fix #2980	1 year ago
James Jackson-South	12a3373489	Add color conversion for CMYK/YCCK separated	1 year ago
James Jackson-South	edc9b52b45	Fix #2924	1 year ago
James Jackson-South	b860f550ae	Add YCCK test	1 year ago
James Jackson-South	74d475d4c4	Use ICC profile when available for JPEG decoding color transforms.	1 year ago
James Jackson-South	583d89e7bd	Update ref images, tweak lite cache to match original (unused)	1 year ago
James Jackson-South	dca98af177	Update test ref images to match caching	2 years ago
James Jackson-South	c573228b09	Upstream fixes.	2 years ago
James Jackson-South	4e21188efe	Fix all known quantizing issues	2 years ago
James Jackson-South	29f17eb05e	Fix #2859	2 years ago
James Jackson-South	3d86c583ee	Refactor and fix for transform space	2 years ago
James Jackson-South	065c1f93cc	Add test output	2 years ago
James Jackson-South	c579547a4f	Separate transform spaces	2 years ago
Brian Popow	978aff8208	Add test case for issue 2679	2 years ago
Socolin	5a79591a0c	Add QuadDistortion to ProjectiveTransformBuilder	2 years ago
James Jackson-South	0103d81d96	Fix off-by-one error when centering a transform.	2 years ago
James Jackson-South	e4ba5d30d7	Decode LZW row by row	2 years ago
James Jackson-South	9f889f75e7	Handle out of bounds Gif LZW max code	2 years ago
Brian Popow	ede2f2d2d1	GifDecoder: Limit lzw bits to a maximum of 12 bits (#2744 ) * Limit lzw bits to a maximum of 12 bits, fixes issue #2743 * Dispose currentLocalColorTable in final block * Revert "Dispose currentLocalColorTable in final block" This reverts commit `35ea961552`. * Don't throw; return. --------- Co-authored-by: James Jackson-South <james_south@hotmail.com>	2 years ago
SpaceCheetah	d15a2e79a4	Add test for default image not animated	3 years ago

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171 Commits (release/4.1.x)