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Implement support for ASTC compressed KTX textures - #37

Merged

JimBobSquarePants merged 159 commits into

SixLabors:mainfrom

Erik-White:implement-astc-decoding

Jul 30, 2026

Merged

Implement support for ASTC compressed KTX textures#37
JimBobSquarePants merged 159 commits into
SixLabors:mainfrom
Erik-White:implement-astc-decoding

Commits on Feb 27, 2026
- Add ASTC decoding support
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  committed
  6577b4c
- Integrate AstcSharp ASTC decoder
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  committed
  6e58d6f
- Use existing test utils for Astc tests
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  committed
  0aba876
- Add HDR support
  Erik-White
  committed
  44599c8
- Fix overflow issue
  Erik-White
  committed
  724bd61
- Move KTX1 test images to subdirectories
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  committed
  abd3b4c
Commits on Mar 6, 2026
- Remove unused AstcSharp reference
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  committed
  86ff81a
- Small fixes and variable naming
  Erik-White
  committed
  94d0f72
- Astc files are little endian
  Erik-White
  committed
  e7ce5fa
- Update shared infra
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  committed
  1d3acec
Commits on Mar 11, 2026
- Add more defensive checks for ASTC input
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  committed
  438959e
Commits on May 9, 2026
- Remove unused decoder overload
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  committed
  fd19b63
- Use correct pixel format for VK_FORMAT_R16G16B16A16_SFLOAT
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  committed
  58814e5
- Add R16G16_SFLOAT, R16G16B16_SFLOAT, R32_SFLOAT, BC3_UNORM_BLOCK support
  Erik-White
  committed
  ee624ca
- Add cubemap test extension
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  committed
  ccc9737
- Use standard library methods for swapping endianess
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  committed
  a7a0b55
- Avoid partial reads
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  committed
  a232b62
- Guard against malformed cubemaps
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  committed
  42bed20
- Tests for new guards
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  committed
  3af005b
- Validate block lengths and dimensions
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  committed
  42caec4
- Document sRGB handling
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  committed
  8085dc9
- Add explicit handling for vulkan formats
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  committed
  aaac865
- Implement support for sfloat block types
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  committed
  063f551
- Add guards for non seekable streams
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  committed
  f426588
- Avoid boxing conversions in TryGetBits
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  committed
  c9e3014
- Consolidate overlapping endian handlers
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  committed
  73424dd
- Prevent buffer corruption in ShiftBuffer
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  committed
  4ca0f94
- Correctly handle arraypool semantics
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  committed
  4d393b4
- Address thread safety in BISD and DecimationTable
  Erik-White
  committed
  734dd5c
- Make sure to throw when HDR endpoint is sent to DecodeColorsForMode
  Erik-White
  committed
  1a794cd
- Don't silently truncate HDR via LDR API
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  committed
  17cc728
- Tighten image comparison tolerances
  Erik-White
  committed
  f0edcb0
- Improve readme
  Erik-White
  committed
  b38bfda
- Major tidy up of minor details
  Erik-White
  committed
  cfc8ef9
- Fix the astcencodercsharp dependency path
  Erik-White
  committed
  f53d718
- Combine DecodeBiseValues and DecodeBiseWeights
  Erik-White
  committed
  2a3e400
- Combine writer methods for fused LDR/HDR decoders
  Erik-White
  committed
  af204fd
Commits on May 10, 2026
- Fix benchmarks test data path
  Erik-White
  committed
  cdf6a9e
- Clean up and formatting
  Erik-White
  committed
  b9eb410
- Split out test methods from LogicalBlock
  Erik-White
  committed
  9ce3e3b
- Refactor LogicalBlock tests to remove intrusive, low value tests
  Erik-White
  committed
  9ba4575
- Move LnsToSf16 out of LogicalBlock
  Erik-White
  committed
  6697e13
- Clean up unused methods in Partition
  Erik-White
  committed
  db6ae9c
- Refactor decoder to simplify where possible
  Erik-White
  committed
  a6307c6
- Refactor large encoding methods to smaller, more understandable units
  Erik-White
  committed
  7620476
- Split out private classes
  Erik-White
  committed
  e165ec6
- Continue refactoring to break down large encoding methods
  Erik-White
  committed
  7d89e04
- Split up and refactor block methods
  Erik-White
  committed
  02e6f8e
- Split up split/search/write phases to separate opeations
  Erik-White
  committed
  f4bd0be
- Refactor and split up DecodeAllBlocks for LDR/HDR
  Erik-White
  committed
  641e14c
- Consolidate bit placement logic via ApplyBitPlacements
  Erik-White
  committed
  5720aaf
- Extract common swap/pack function
  Erik-White
  committed
  d0f25cd
- Remove IntermediateBlock
  Erik-White
  committed
  06425f6
- remove redundant endpoint.IsHdr branch
  Erik-White
  committed
  e02a617
- Unify DecodeAllBlocks methods
  Erik-White
  committed
  e317acb
- Streamline DecompressBlock methods to thin wrappers
  Erik-White
  committed
  dcf5c8f
- Cache partitions across blocks
  Erik-White
  committed
  22b3cf1
- Consolidate interpolation functions
  Erik-White
  committed
  163434c
- Reference ASTC spec in pipeline where possible
  Erik-White
  committed
  d909006
- Consolidate small repeated functions
  Erik-White
  committed
  68dcfcd
Commits on May 13, 2026
- Reorganize ASTC decoder
  Erik-White
  committed
  28ff800
- Remove state from BIS decoder
  Erik-White
  committed
  872cb18
- Consolidate EndpointCodec API
  Erik-White
  committed
  d9806de
Commits on May 14, 2026
- Combine LDR and HDR endpoint decode
  Erik-White
  committed
  36cfc81
- Avoid allocating LogicalBlock on the heap
  Erik-White
  committed
  053ae6b
- Annotate usage of stackalloc
  Erik-White
  committed
  60dd5e5
- Encapsulate block state during decoding
  Erik-White
  committed
  4d0f25f
- Extract HDR/LDR pixel methods from LogicalBlock
  Erik-White
  committed
  e153824
- Invert void extent check
  Erik-White
  committed
  24a5e6d
- Simplify bit placement lookup
  Erik-White
  committed
  1badfa0
- Store ordered encoding modes once
  Erik-White
  committed
  a84e5f1
- Store channel count in single location
  Erik-White
  committed
  b0bb03a
- Calculate BISE block size in one place
  Erik-White
  committed
  2a01aeb
- Move blend methods to interpolation
  Erik-White
  committed
  bf49f40
- TryReadBlockBits no longer needed
  Erik-White
  committed
  9801606
- Try to limit mutation of Partition
  Erik-White
  committed
  dd517b4
- Skip redundant bounds checks for bit count
  Erik-White
  committed
  6093e2b
- Remove redundant fields on Partition
  Erik-White
  committed
  f51c202
- Clean up BlueContract swap path
  Erik-White
  committed
  380dc90
- Move Rgba extensions to ColorEncoding
  Erik-White
  committed
  a7bac74
- Fix potential race in Partition construction
  Erik-White
  committed
  c408084
- Encapsulate IsFusable on BlockInfo
  Erik-White
  committed
  3fc63b7
- Build QuantizationMaps from static constructors
  Erik-White
  committed
  4eeb587
- Clean up redundant methods, properties, arguments
  Erik-White
  committed
  4d88f9b
- Don't silently fail on invalid blocks
  Erik-White
  committed
  f378bbc
- Don't return nullable quant maps
  Erik-White
  committed
  b121b1c
- Don't need to fully qualify names
  Erik-White
  committed
  af22aef
- Combine unquantize functions
  Erik-White
  committed
  29e3405
- return correct mode
  Erik-White
  committed
  7dc6da6
- BISE can be static
  Erik-White
  committed
  cfcd86e
- Small cleanups in BISE
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  committed
  f6e5efb
- Note swap semantics
  Erik-White
  committed
  f9f9aa3
- Tiny tidy
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  committed
  07c91cb
- BlockInfo should be immutable
  Erik-White
  committed
  7fde153
- Simplify CopyBlockRect
  Erik-White
  committed
  94c15ee
- Test for HDR void-extent blocks
  Erik-White
  committed
  3b9bb20
- Add regression tests for multithreaded and block decoding
  Erik-White
  committed
  6d7aec2
- Move references tests to main test project
  Erik-White
  committed
  ccefd1b
- Add LDR/HDR reference benchmarks
  Erik-White
  committed
  2d0d52d
- Add reference persistence benchmark
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  committed
  bee1074
- Add larger HDR test files
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  committed
  b9363b1
Commits on May 15, 2026
- Add fuzzing tests with FuzzSharp
  Erik-White
  committed
  4704375
- Add support for fuzzing with libfuzzer
  Erik-White
  committed
  cb7bf3e
- Increase fuzzing coverage
  Erik-White
  committed
  06e8257
- Use ImageSharp guards
  Erik-White
  committed
  4487d89
- Remove old reference tests project
  Erik-White
  committed
  ab09b5b
- Rename HDR namespace to titlecase for consistency
  Erik-White
  committed
  6fa49d9
- Merge branch 'main' into implement-astc-decoding
  Erik-White
  committed
  11758b9
- Reorganize test data for consistency
  Erik-White
  committed
  8e244ec
- Add stream based overloads for AstcDecoder
  Erik-White
  committed
  cae17ca
- Use ImageSharp allocator
  Erik-White
  committed
  845b24e
- Improve ktx1 ASTC test coverage
  Erik-White
  committed
  c0ff0f6
- Fix off-by-one error in LDR quantization
  Erik-White
  committed
  100aa5c
Commits on May 16, 2026
- Revise doc references and include sources in repo
  Erik-White
  committed
  e999744
- Make sure to dispose images in tests
  Erik-White
  committed
  35c78e2
- Fix race in test output paths
  Erik-White
  committed
  91317c6
- Consolidate Hdr properties for BlockInfo
  Erik-White
  committed
  d916af9
- Clean up redundant code in DecompressImage
  Erik-White
  committed
  6bf7b5a
- Use integer maths for scale factor
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  committed
  31a9def
- Simplify partition cache key
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  committed
  4933ec1
- BlockModeDecoder lookup tables should be static
  Erik-White
  committed
  d8ddf54
- Enforce read only properties where possible
  Erik-White
  committed
  07efe2d
- Remove remaining encoding related code
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  committed
  270bdd1
- Use centralized value for channel count
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  committed
  83c761c
- Remove redundant argument name parameters
  Erik-White
  committed
  060af19
- Combine and simplify reference benchmark cases
  Erik-White
  committed
  7e20e5f
- Avoid buffer allocation overhead for reference decoder benchmark
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  committed
  0af7e7a
- Use ARM decoder as benchmark baseline
  Erik-White
  committed
  83eae61
- Write magenta error colour instead of black, or throwing
  Erik-White
  committed
  ecc374e
Commits on May 17, 2026
- Build fixes and tidy up
  Erik-White
  committed
  5b216b3
- Fix race condition with file name collisions
  Erik-White
  committed
  e095e12
- Convenience method for comparing cubemap faces
  Erik-White
  committed
  7441ddf
- Support test data subdirectories
  Erik-White
  committed
  07793ba
- Make sure to correctly dispose images in test
  Erik-White
  committed
  d2f9574
- Standarize existing KTX1 test
  Erik-White
  committed
  5e0c597
- Suppress strong naming warning for interactive tests
  Erik-White
  committed
  4fffeda
- Low dynamic range ASTC decoding
  Erik-White
  committed
  5f07655
- Low dynamic range ASTC decoding
  Erik-White
  committed
  de13c78
- Low dynamic range ASTC decoding
  Erik-White
  committed
  9141144
- Implement HDR decoding
  Erik-White
  committed
  937643a
- Add reference tests using ARM ASTC decoder
  Erik-White
  committed
  cc9f338
- Add benchmarks project
  Erik-White
  committed
  542b32b
Commits on May 18, 2026
- Update shared infra
  Erik-White
  committed
  b2ed142
- Implement ASTC decoding for KTX1
  Erik-White
  committed
  1ba622f
- Implement KTX2 ASTC decoding
  Erik-White
  committed
  1f1c407
Commits on May 19, 2026
- Fix missing access modifier
  Erik-White
  committed
  57b80e0
- Use correct access modifier
  Erik-White
  committed
  14228a1
Commits on Jul 27, 2026
- Fixes and improvements
  Erik-White
  committed
  73539fc
- Use standard library method for powers of two
  Erik-White
  committed
  f7307c0
- Tidy up
  Erik-White
  committed
  cfa796a
- Generic method for decoding dual plane
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  committed
  c464704
- Logical improvements
  Erik-White
  committed
  d9c3cf0
- Fully stream based decoding
  Erik-White
  committed
  cd40455
- Update readme
  Erik-White
  committed
  7191a3c
- Remove fuzz testing project
  Erik-White
  committed
  9d8091c
- Update benchmarks for streaming API
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  committed
  93acb93
- Merge remote-tracking branch 'upstream/main' into implement-astc-decoding
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  committed
  91f6a15
Commits on Jul 28, 2026
- Clean up, use constants instead of magic numbers where possible
  Erik-White
  committed
  cfd288c
- Clean up tests and improve comments
  Erik-White
  committed
  8cf9fc3

Commits

Commits on Feb 27, 2026

Commits on Mar 6, 2026

Commits on Mar 11, 2026

Commits on May 9, 2026

Commits on May 10, 2026

Commits on May 13, 2026

Commits on May 14, 2026

Commits on May 15, 2026

Commits on May 16, 2026

Commits on May 17, 2026