shader-slang: init at 2024.14.6

NixOS · Dec 1, 2024 · 2d17782 · 2d17782
1 parent e16d20f
commit 2d17782
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diff --git a/pkgs/by-name/sh/shader-slang/find-packages.patch b/pkgs/by-name/sh/shader-slang/find-packages.patch
@@ -0,0 +1,77 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index dc281211..c36b9bcb 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -154,6 +154,8 @@ advanced_option(
+     "Build using system unordered dense"
+     OFF
+ )
++advanced_option(SLANG_USE_SYSTEM_SPIRV_TOOLS "Build using system SPIR-V tools library" OFF)
++advanced_option(SLANG_USE_SYSTEM_GLSLANG "Build using system glslang library" OFF)
+
+ option(
+     SLANG_SPIRV_HEADERS_INCLUDE_DIR
+@@ -289,6 +291,34 @@ if(${SLANG_USE_SYSTEM_UNORDERED_DENSE})
+     find_package(unordered_dense CONFIG QUIET)
+ endif()
+
++if(${SLANG_USE_SYSTEM_MINIZ})
++    find_package(miniz REQUIRED)
++    add_library(miniz ALIAS miniz::miniz)
++endif()
++
++if(${SLANG_USE_SYSTEM_LZ4})
++    find_package(lz4 REQUIRED)
++    add_library(lz4_static ALIAS LZ4::lz4)
++endif()
++
++if(${SLANG_USE_SYSTEM_VULKAN_HEADERS})
++    find_package(VulkanHeaders REQUIRED)
++endif()
++
++if(${SLANG_USE_SYSTEM_SPIRV_HEADERS})
++    find_package(SPIRV-Headers REQUIRED)
++    add_library(SPIRV-Headers ALIAS SPIRV-Headers::SPIRV-Headers)
++endif()
++
++if(${SLANG_USE_SYSTEM_SPIRV_TOOLS})
++    find_package(SPIRV-Tools REQUIRED)
++endif()
++
++if(${SLANG_USE_SYSTEM_GLSLANG})
++    find_package(glslang REQUIRED)
++    add_library(glslang ALIAS glslang::glslang)
++endif()
++
+ add_subdirectory(external)
+
+ # webgpu_dawn is only available as a fetched shared library, since Dawn's nested source
+diff --git a/external/CMakeLists.txt b/external/CMakeLists.txt
+index 43105a5f..8b9c0f14 100644
+--- a/external/CMakeLists.txt
++++ b/external/CMakeLists.txt
+@@ -73,19 +73,24 @@ if(NOT ${SLANG_USE_SYSTEM_SPIRV_HEADERS})
+ endif()
+
+ if(SLANG_ENABLE_SLANG_GLSLANG)
++if(NOT ${SLANG_USE_SYSTEM_SPIRV_TOOLS})
+     # SPIRV-Tools
+     set(SPIRV_TOOLS_BUILD_STATIC ON)
+     set(SPIRV_WERROR OFF)
+     set(SPIRV_HEADER_DIR "${CMAKE_CURRENT_LIST_DIR}/spirv-headers/")
+     set(SPIRV_SKIP_TESTS ON)
+     add_subdirectory(spirv-tools EXCLUDE_FROM_ALL ${system})
++endif()
+
++if(NOT ${SLANG_USE_SYSTEM_GLSLANG})
+     # glslang
+     set(SKIP_GLSLANG_INSTALL ON)
+     set(ENABLE_OPT ON)
+     set(ENABLE_PCH OFF)
++    set(ALLOW_EXTERNAL_SPIRV_TOOLS ${SLANG_USE_SYSTEM_SPIRV_TOOLS})
+     add_subdirectory(glslang EXCLUDE_FROM_ALL ${system})
+ endif()
++endif()
+
+ # imgui
+ add_library(imgui INTERFACE)
diff --git a/pkgs/by-name/sh/shader-slang/package.nix b/pkgs/by-name/sh/shader-slang/package.nix
@@ -0,0 +1,113 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  cmake,
+  ninja,
+  python3,
+  miniz,
+  lz4,
+  libxml2,
+  libX11,
+  vulkan-headers,
+  spirv-headers,
+  spirv-tools,
+  llvmPackages_13,
+
+  # Mayb be used for compiling shaders to CPU targets, see:
+  # https://github.com/shader-slang/slang/blob/master/docs/cpu-target.md
+  # If `withLLVM` is disabled, slang will fall back to the C++ compiler found
+  # in the environment, if one exists.
+  # Enabling this increases the package's size from ~20mb to ~100mb.
+  withLLVM ? false,
+  # May be enabled by default once we can use nixpkgs' glslang version.
+  # Effect on package size is minimal, even with the vendored glslang version.
+  withGlslang ? false,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "shader-slang";
+  version = "2024.14.6";
+
+  src = fetchFromGitHub {
+    owner = "shader-slang";
+    repo = "slang";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-q/FR7CA3FddbHBmINOqQqfmOhlusswv3femKFax2AnM=";
+    fetchSubmodules = true;
+  };
+
+  patches = [ ./find-packages.patch ];
+
+  outputs = [
+    "out"
+    "dev"
+    "doc"
+  ];
+
+  nativeBuildInputs = [
+    cmake
+    ninja
+    python3
+  ];
+
+  buildInputs =
+    [
+      miniz
+      lz4
+      libxml2
+      vulkan-headers
+      spirv-headers
+    ]
+    ++ (lib.optionals stdenv.hostPlatform.isLinux [
+      libX11
+    ])
+    ++ (lib.optionals withLLVM [
+      llvmPackages_13.llvm
+      llvmPackages_13.libclang
+    ])
+    ++ (lib.optionals withGlslang [
+      # SPIRV-tools is included in glslang.
+      # Replace with glslang once Slang is compatible with version 15.
+      # Until then, we use the vendored version of glslang and make it an optional
+      # feature behind the `withGlslang` parameter.
+      spirv-tools
+    ]);
+
+  # Required for spaces in cmakeFlags, see https://github.com/NixOS/nixpkgs/issues/114044
+  __structuredAttrs = true;
+
+  cmakeFlags =
+    [
+      "-GNinja Multi-Config"
+      # The cmake setup hook only specifies `-DCMAKE_BUILD_TYPE=Release`,
+      # which does nothing for "Ninja Multi-Config".
+      "-DCMAKE_CONFIGURATION_TYPES=Release"
+      "-DSLANG_VERSION_FULL=v${finalAttrs.version}-nixpkgs"
+      "-DSLANG_USE_SYSTEM_MINIZ=ON"
+      "-DSLANG_USE_SYSTEM_LZ4=ON"
+      #"-DSLANG_USE_SYSTEM_VULKAN_HEADERS=ON"
+      "-DSLANG_USE_SYSTEM_SPIRV_HEADERS=ON"
+      "-DSLANG_SPIRV_HEADERS_INCLUDE_DIR=${spirv-headers}/include"
+      "-DSLANG_SLANG_LLVM_FLAVOR=${if withLLVM then "USE_SYSTEM_LLVM" else "DISABLE"}"
+    ]
+    ++ (lib.optionals withGlslang [
+      "-DSLANG_USE_SYSTEM_SPIRV_TOOLS=ON"
+      # Slang is not compatible with glslang 15 yet.
+      #"-DSLANG_USE_SYSTEM_GLSLANG=ON"
+    ])
+    ++ lib.optional (!withGlslang) "-DSLANG_ENABLE_SLANG_GLSLANG=OFF";
+
+  preFixup = ''
+    rm $out/include/.clang-format
+  '';
+
+  meta = {
+    description = "A shading language that makes it easier to build and maintain large shader codebases in a modular and extensible fashion";
+    homepage = "https://github.com/shader-slang/slang";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ niklaskorz ];
+    mainProgram = "slang";
+    platforms = lib.platforms.all;
+  };
+})