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{ lib, stdenv, fetchFromGitHub, cmake, writeText, vulkan-headers, jq }:
stdenv.mkDerivation rec {
pname = "vulkan-extension-layer";
version = "1.3.254";
src = fetchFromGitHub {
owner = "KhronosGroup";
repo = "Vulkan-ExtensionLayer";
rev = "v${version}";
hash = "sha256-YWJk0sAvhmfVbJ6Nv24kzFL4SltQnggNjZ+NjaUO1Io=";
};
nativeBuildInputs = [ cmake jq ];
buildInputs = [ vulkan-headers ];
# Help vulkan-loader find the validation layers
setupHook = writeText "setup-hook" ''
addToSearchPath XDG_DATA_DIRS @out@/share
'';
# Tests are not for gpu-less and headless environments
cmakeFlags = [
"-DBUILD_TESTS=false"
];
# Include absolute paths to layer libraries in their associated
# layer definition json files.
preFixup = ''
for f in "$out"/share/vulkan/explicit_layer.d/*.json "$out"/share/vulkan/implicit_layer.d/*.json; do
jq <"$f" >tmp.json ".layer.library_path = \"$out/lib/\" + .layer.library_path"
mv tmp.json "$f"
done
'';
meta = with lib; {
description = "Layers providing Vulkan features when native support is unavailable";
homepage = "https://github.com/KhronosGroup/Vulkan-ExtensionLayer/";
platforms = platforms.linux;
license = licenses.asl20;
maintainers = with maintainers; [ expipiplus1 ];
};
}
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