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5.1.0

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@github-actions github-actions released this 15 Nov 11:44
5.1.0
4a86301

Status: November 2024

The 5.1.0 release is an optimization release, giving moderate performance improvements on all platforms. There are no image quality differences.

  • General:
    • Feature: Added a new CMake build option to control use of native gathers, as they can be slower than scalar loads on some common x86 microarchitectures. Build with -DASTCENC_X86_GATHERS=OFF to disable use of native gathers in AVX2 builds.
    • Optimization: Added new gather() abstraction for gathers using byte indices, allowing implementations without gather hardware to skip the byte-to-int index conversion.
    • Optimization: Optimized compute_lowest_and_highest_weight() to pre-compute min/max outside of the main loop.
    • Optimization: Added improved intrinsics sequence for SSE and AVX2 integer hmin() and hmax().
    • Optimization: Added improved intrinsics sequence for vint4(uint8_t*) on systems implementing Arm SVE.

Binary release sha256 checksums

a9f61f954f8c6f75675b9b8187454a3b1328c172cb62747715a30937bb8fe7bb  astcenc-5.1.0-linux-x64.zip
4ecb330104e05a35febfc0d83b0c128ee2f51b671577e9952ca4278b5455197b  astcenc-5.1.0-macos-universal.zip
ff01a6f988aaf5d7f1a139d2cff4c1988f70252b6f53fa3ba72888cc732ba154  astcenc-5.1.0-windows-arm64.zip
c3e5954b9f263e4e13d92892a9e9ef4728abf4acffbf013bb466dd97cc2a0a15  astcenc-5.1.0-windows-x64.zip
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