Linux support. (#4)

* Initial Linux attempt.

* Fix DXIL library linkage.

* Compiling and running on Linux.

* Fix compilation error on Windows.

* Convert almost all dependencies to submodules.

.gitmodules

@@ -1,3 +1,12 @@
 [submodule "thirdparty/smol-v"]
 	path = thirdparty/smol-v
 	url = https://github.com/aras-p/smol-v
+[submodule "thirdparty/zstd"]
+	path = thirdparty/zstd
+	url = https://github.com/facebook/zstd.git
+[submodule "thirdparty/xxHash"]
+	path = thirdparty/xxHash
+	url = https://github.com/Cyan4973/xxHash.git
+[submodule "thirdparty/fmt"]
+	path = thirdparty/fmt
+	url = https://github.com/fmtlib/fmt.git

CMakeLists.txt

@@ -3,6 +3,9 @@ cmake_minimum_required(VERSION 3.20)
 include($ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake)
 set(CMAKE_CXX_STANDARD 17)
 
-project(ShaderRecomp-ALL)
+project("ShaderRecomp-ALL")
 
-add_subdirectory(ShaderRecomp)
+set(SHADER_RECOMP_THIRDPARTY_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/thirdparty")
+
+add_subdirectory(${SHADER_RECOMP_THIRDPARTY_ROOT})
+add_subdirectory("${CMAKE_CURRENT_SOURCE_DIR}/ShaderRecomp")

ShaderRecomp/CMakeLists.txt

@@ -19,14 +19,12 @@ add_executable(ShaderRecomp
     "${SMOLV_SOURCE_DIR}/smolv.cpp")
 
 find_package(directx-dxc CONFIG REQUIRED)
-find_package(xxhash CONFIG REQUIRED)
-find_package(zstd CONFIG REQUIRED)
-find_package(fmt CONFIG REQUIRED)
 
 target_link_libraries(ShaderRecomp PRIVATE
     Microsoft::DirectXShaderCompiler
+    Microsoft::DXIL
     xxHash::xxhash
-    $<IF:$<TARGET_EXISTS:zstd::libzstd_shared>,zstd::libzstd_shared,zstd::libzstd_static>
+    libzstd_static
     fmt::fmt)
 
 target_include_directories(ShaderRecomp PRIVATE ${SMOLV_SOURCE_DIR})
@@ -34,13 +32,15 @@ target_include_directories(ShaderRecomp PRIVATE ${SMOLV_SOURCE_DIR})
 target_precompile_headers(ShaderRecomp PRIVATE pch.h)
 
 if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
-    target_compile_options(ShaderRecomp PRIVATE -Wno-switch -Wno-unused-variable)
+    target_compile_options(ShaderRecomp PRIVATE -Wno-switch -Wno-unused-variable -Wno-null-arithmetic -fms-extensions)
 endif()
 
-target_compile_definitions(ShaderRecomp PRIVATE _CRT_SECURE_NO_WARNINGS)
+if (WIN32)
+    target_compile_definitions(ShaderRecomp PRIVATE _CRT_SECURE_NO_WARNINGS)
+    find_file(DIRECTX_DXIL_LIBRARY "dxil.dll")
+    file(COPY ${DIRECTX_DXIL_LIBRARY} DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
+endif()
 
 if (SHADER_RECOMP_DXIL)
     target_compile_definitions(ShaderRecomp PRIVATE SHADER_RECOMP_DXIL)
 endif()
-
-file(COPY ${PACKAGE_PREFIX_DIR}/bin/dxil.dll DESTINATION ${CMAKE_CURRENT_BINARY_DIR})

ShaderRecomp/pch.h

@@ -1,6 +1,9 @@
 #pragma once
 
+#ifdef _WIN32
 #include <Windows.h>
+#endif
+
 #include <dxcapi.h>
 
 #include <bit>

thirdparty/CMakeLists.txt

@@ -0,0 +1,11 @@
+if (NOT TARGET fmt::fmt)
+    add_subdirectory("${SHADER_RECOMP_THIRDPARTY_ROOT}/fmt")
+endif()
+
+if (NOT TARGET xxHash::xxhash)
+    add_subdirectory("${SHADER_RECOMP_THIRDPARTY_ROOT}/xxHash/cmake_unofficial")
+endif()
+
+if (NOT TARGET libzstd)
+    add_subdirectory("${SHADER_RECOMP_THIRDPARTY_ROOT}/zstd/build/cmake")
+endif()

thirdparty/fmt

@@ -0,0 +1 @@
+Subproject commit 873670ba3f9e7bc77ec2c1c94b04f1f8bef77e9f

thirdparty/xxHash

@@ -0,0 +1 @@
+Subproject commit 2bf8313b934633b2a5b7e8fd239645b85e10c852

thirdparty/zstd

@@ -0,0 +1 @@
+Subproject commit f7a8bb1263448e5028aceeba606a08fe3809550f

vcpkg.json

@@ -1,9 +1,6 @@
 {
-    "builtin-baseline": "e63bd09dc0b7204467705c1c7c71d0e2a3f8860b",
+    "builtin-baseline": "b322364f06308bdd24823f9d8f03fe0cc86fd46f",
     "dependencies": [
-        "directx-dxc",
-        "fmt",
-        "xxhash",
-        "zstd"
+        "directx-dxc"
     ]
 }