96 lines
2.5 KiB
Nix
96 lines
2.5 KiB
Nix
{
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lib,
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stdenv,
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fetchFromGitHub,
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cmake,
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simdExtensions ? null,
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}:
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let
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inherit (lib)
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head
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licenses
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maintainers
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platforms
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replaceStrings
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toList
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;
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# SIMD instruction sets to compile for. If none are specified by the user,
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# an appropriate one is selected based on the detected host system
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isas =
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with stdenv.hostPlatform;
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if simdExtensions != null then
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toList simdExtensions
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else if avx2Support then
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[ "AVX2" ]
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else if sse4_1Support then
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[ "SSE41" ]
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else if isx86_64 then
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[ "SSE2" ]
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else if isAarch64 then
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[ "NEON" ]
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else
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[ "NONE" ];
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# CMake Build flags for the selected ISAs. For a list of flags, see
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# https://github.com/ARM-software/astc-encoder/blob/main/Docs/Building.md
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isaFlags = map (isa: "-DASTCENC_ISA_${isa}=ON") isas;
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# The suffix of the binary to link as 'astcenc'
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mainBinary =
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replaceStrings
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[ "AVX2" "SSE41" "SSE2" "NEON" "NONE" "NATIVE" ]
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[ "avx2" "sse4.1" "sse2" "neon" "none" "native" ]
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(head isas);
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in
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stdenv.mkDerivation (finalAttrs: {
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pname = "astc-encoder";
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version = "5.3.0";
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src = fetchFromGitHub {
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owner = "ARM-software";
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repo = "astc-encoder";
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tag = finalAttrs.version;
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hash = "sha256-15fX+3wzDoVzvQAhneeGajMsFXqSwmYtlsi3qrNFNus=";
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};
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nativeBuildInputs = [ cmake ];
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cmakeBuildType = "RelWithDebInfo";
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cmakeFlags = isaFlags ++ [
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"-DASTCENC_UNIVERSAL_BUILD=OFF"
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];
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# Set a fixed build year to display within help output (otherwise, it would be 1980)
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postPatch = ''
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substituteInPlace Source/cmake_core.cmake \
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--replace 'string(TIMESTAMP astcencoder_YEAR "%Y")' 'set(astcencoder_YEAR "2023")'
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'';
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# Provide 'astcenc' link to main executable
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postInstall = ''
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ln -s $out/bin/astcenc-${mainBinary} $out/bin/astcenc
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'';
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meta = {
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homepage = "https://github.com/ARM-software/astc-encoder";
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description = "Encoder for the ASTC texture compression format";
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longDescription = ''
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The Adaptive Scalable Texture Compression (ASTC) format is
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widely supported by mobile and desktop graphics hardware and
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provides better quality at a given bitrate compared to ETC2.
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This program supports both compression and decompression in LDR
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and HDR mode and can read various image formats. Run `astcenc
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-help` to see all the options.
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'';
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platforms = lib.platforms.unix;
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license = lib.licenses.asl20;
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maintainers = with lib.maintainers; [ dasisdormax ];
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broken = !stdenv.hostPlatform.is64bit;
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};
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})
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