ImageSharp

Commit Graph

Author	SHA1	Message	Date
James Jackson-South	c5babb8d13	Honor PNG ancillary policy for invalid compressed metadata	4 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.	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	29ae5f8409	Guard CgBI bit depth and color type	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	7d38e50d3f	Use better test image for float pixel type created with reference encoder	5 months ago
Brian Popow	e8c9d6db9d	Add test case for pxr compression with pixel type uint	5 months ago
Brian Popow	efa1f8bbae	Add test case for pxr compression with pixel type float	5 months ago
Brian Popow	d805b9b50c	Add test case for pxr24 compressed image	5 months ago
James Jackson-South	3b1b8956cf	Stop parsing after SOS in JPEG decoder in ProcessStartOfFrameMarker	6 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	b4cd27f2c9	Remove unnecessary ColorScaleTo32Bit when decoding pixel type uint32	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
Andreas	a76c02f7c0	Replace test image with a smaller one. Adjusted Identify_AnimatedPng_ReadsFrameCountCorrectly to expect 48 frames instead of 50.	6 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.	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	b95663489e	Add tests for exr metadata	6 months ago
Brian Popow	aa0af92faa	Use CompareToReferenceOutput for int pixel type	6 months ago
Brian Popow	d29fe89a27	Add benchmark for decoding exr image	6 months ago
Brian Popow	51f3ab2526	Fix test image for float32: it is now actually uncompressed	7 months ago
Brian Popow	a0eaefbae9	Try fix decode unsigned int pixel data	7 months ago
Brian Popow	fc40209727	Test case for pixel type uint	7 months ago
Brian Popow	1abfe6966d	Add test image for decoding exr with float piyel type	7 months ago
Brian Popow	e4c22d8f67	Add tests for decode RGB and gray exr files	7 months ago
Brian Popow	1b97d8c12c	Smaller test files	7 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
James Jackson-South	ff02d0c1f0	Use IptcProfile in PNG	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	c82b1f7908	Explicitly handle missing SOS marker. Fix #2948	11 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
Brian Berns	336b6a22f6	Added TIFF image for unit test.	1 year ago

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855 Commits (release/4.1.x)