69 lines
2.3 KiB
Nix
69 lines
2.3 KiB
Nix
{ lib, stdenv, fetchFromGitHub, cmake, python3, autoSignDarwinBinariesHook, cctools }:
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# Like many google projects, shaderc doesn't gracefully support separately compiled dependencies, so we can't easily use
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# the versions of glslang and spirv-tools used by vulkan-loader. Exact revisions are taken from
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# https://github.com/google/shaderc/blob/known-good/known_good.json
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# Future work: extract and fetch all revisions automatically based on a revision of shaderc's known-good branch.
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let
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glslang = fetchFromGitHub {
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owner = "KhronosGroup";
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repo = "glslang";
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rev = "18eef33bd7a4bf5ad8c69f99cb72022608cf6e73";
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sha256 = "sha256-tkWVvYmSpJPaZ8VJOkAWndDWhA0PiHAkR3feBAo+knM=";
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};
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spirv-tools = fetchFromGitHub {
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owner = "KhronosGroup";
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repo = "SPIRV-Tools";
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rev = "c2d5375fa7cc87c93f692e7200d5d974283d4391";
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sha256 = "sha256-tMJRljrlH+qb+27rTn+3LuEyMOVpiU0zSCiGNfUTb6g=";
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};
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spirv-headers = fetchFromGitHub {
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owner = "KhronosGroup";
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repo = "SPIRV-Headers";
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rev = "0c28b6451d77774912e52949c1e57fa726edf113";
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sha256 = "sha256-KpCMceTV/BRaoJe1qeXhKYQNQqdGaM6Q9nklpJKzHFY=";
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};
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in
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stdenv.mkDerivation rec {
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pname = "shaderc";
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version = "2021.0";
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outputs = [ "out" "lib" "bin" "dev" "static" ];
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src = fetchFromGitHub {
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owner = "google";
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repo = "shaderc";
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rev = "v${version}";
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sha256 = "sha256-RfSMzrGVtdXbr/mjSrHoN447e3vMQfJbesQMvLOARBs=";
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};
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patchPhase = ''
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cp -r --no-preserve=mode ${glslang} third_party/glslang
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cp -r --no-preserve=mode ${spirv-tools} third_party/spirv-tools
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ln -s ${spirv-headers} third_party/spirv-tools/external/spirv-headers
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'';
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nativeBuildInputs = [ cmake python3 ]
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++ lib.optionals stdenv.isDarwin [ cctools ]
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++ lib.optionals (stdenv.isDarwin && stdenv.isAarch64) [ autoSignDarwinBinariesHook ];
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postInstall = ''
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moveToOutput "lib/*.a" $static
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'';
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cmakeFlags = [ "-DSHADERC_SKIP_TESTS=ON" ];
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# Fix the paths in .pc, even though it's unclear if all these .pc are really useful.
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postFixup = ''
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substituteInPlace "$dev"/lib/pkgconfig/*.pc \
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--replace '=''${prefix}//' '=/' \
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--replace "$dev/$dev/" "$dev/"
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'';
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meta = with lib; {
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inherit (src.meta) homepage;
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description = "A collection of tools, libraries and tests for shader compilation";
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platforms = platforms.all;
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license = [ licenses.asl20 ];
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};
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}
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