nixpkgs/pkgs/development/compilers/glslang/default.nix

81 lines
2.5 KiB
Nix

{ 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/master/known_good.json
let
localSpirv-tools = if argSpirv-tools == null
then spirv-tools.overrideAttrs (_: {
src = fetchFromGitHub {
owner = "KhronosGroup";
repo = "SPIRV-Tools";
rev = "fd8e130510a6b002b28eee5885a9505040a9bdc9";
sha256 = "00b7xgyrcb2qq63pp3cnw5q1xqx2d9rfn65lai6n6r89s1vh3vg6";
};
})
else argSpirv-tools;
localSpirv-headers = if argSpirv-headers == null
then spirv-headers.overrideAttrs (_: {
src = fetchFromGitHub {
owner = "KhronosGroup";
repo = "SPIRV-Headers";
rev = "f8bf11a0253a32375c32cad92c841237b96696c0";
sha256 = "1znwjy02dl9rshqzl87rqsv9mfczw7gvwfhcirbl81idahgp4p6l";
};
})
else argSpirv-headers;
in
stdenv.mkDerivation rec {
pname = "glslang";
version = "8.13.3743";
src = fetchFromGitHub {
owner = "KhronosGroup";
repo = "glslang";
rev = version;
sha256 = "0d20wfpp2fmbnz1hnsjr9xc62lxpj86ik2qyviqbni0pqj212cry";
};
# 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 stdenv.lib; {
inherit (src.meta) homepage;
description = "Khronos reference front-end for GLSL and ESSL";
license = licenses.asl20;
platforms = platforms.linux;
maintainers = [ maintainers.ralith ];
};
}