{ lib, stdenv , fetchFromGitHub , bison , cmake , jq , python3 , spirv-headers , spirv-tools , argSpirv-tools ? null , argSpirv-headers ? null }: # glslang requires custom versions of spirv-tools and spirb-headers. # The exact versions are taken from: # https://github.com/KhronosGroup/glslang/blob/${version}/known_good.json let localSpirv-tools = if argSpirv-tools == null then spirv-tools.overrideAttrs (_: { src = fetchFromGitHub { owner = "KhronosGroup"; repo = "SPIRV-Tools"; rev = "b27b1afd12d05bf238ac7368bb49de73cd620a8e"; sha256 = "0v26ws6qx23jn4dcpsq6rqmdxgyxpl5pcvfm90wb3nz6iqbqx294"; }; }) else argSpirv-tools; localSpirv-headers = if argSpirv-headers == null then spirv-headers.overrideAttrs (_: { src = fetchFromGitHub { owner = "KhronosGroup"; repo = "SPIRV-Headers"; rev = "f027d53ded7e230e008d37c8b47ede7cd308e19d"; sha256 = "12gp2mqcar6jj57jw9isfr62yn72kmvdcl0zga4gvrlyfhnf582q"; }; }) else argSpirv-headers; in stdenv.mkDerivation rec { pname = "glslang"; version = "11.1.0"; src = fetchFromGitHub { owner = "KhronosGroup"; repo = "glslang"; rev = version; sha256 = "1j81pghy7whyr8ygk7lx6g6qph61rky7fkkc8xp87c7n695a48rw"; }; # These get set at all-packages, keep onto them for child drvs passthru = { spirv-tools = localSpirv-tools; spirv-headers = localSpirv-headers; }; nativeBuildInputs = [ cmake python3 bison jq ]; postPatch = '' cp --no-preserve=mode -r "${localSpirv-tools.src}" External/spirv-tools ln -s "${localSpirv-headers.src}" External/spirv-tools/external/spirv-headers ''; # Ensure spirv-headers and spirv-tools match exactly to what is expected preConfigure = '' HEADERS_COMMIT=$(jq -r < known_good.json '.commits|map(select(.name=="spirv-tools/external/spirv-headers"))[0].commit') TOOLS_COMMIT=$(jq -r < known_good.json '.commits|map(select(.name=="spirv-tools"))[0].commit') if [ "$HEADERS_COMMIT" != "${localSpirv-headers.src.rev}" ] || [ "$TOOLS_COMMIT" != "${localSpirv-tools.src.rev}" ]; then echo "ERROR: spirv-tools commits do not match expected versions: expected tools at $TOOLS_COMMIT, headers at $HEADERS_COMMIT"; exit 1; fi ''; meta = with lib; { inherit (src.meta) homepage; description = "Khronos reference front-end for GLSL and ESSL"; license = licenses.asl20; platforms = platforms.unix; maintainers = [ maintainers.ralith ]; }; }