From 95952ba8f76af60a91a2672f5657039c7fc7fa8c Mon Sep 17 00:00:00 2001
From: azhirnov <zh1dron@gmail.com>
Date: Wed, 19 Aug 2020 18:57:26 +0300
Subject: Use DXIL to compile SPIRV from HLSL (wip)

---
 Graphics/GraphicsEngineVulkan/CMakeLists.txt | 45 ++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

(limited to 'Graphics/GraphicsEngineVulkan')

diff --git a/Graphics/GraphicsEngineVulkan/CMakeLists.txt b/Graphics/GraphicsEngineVulkan/CMakeLists.txt
index 93a811b1..c6fffdee 100644
--- a/Graphics/GraphicsEngineVulkan/CMakeLists.txt
+++ b/Graphics/GraphicsEngineVulkan/CMakeLists.txt
@@ -187,6 +187,51 @@ else()
     list(APPEND PRIVATE_DEPENDENCIES SPIRV-Tools-opt)
 endif()
 
+# find Vulkan SDK
+if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.7")
+    find_package(Vulkan)
+    if(Vulkan_FOUND)
+        get_filename_component(VulkanSDKPath ${Vulkan_LIBRARY} DIRECTORY)
+        set(VulkanSDKPath "${VulkanSDKPath}/..")
+        if(NOT EXISTS "${VulkanSDKPath}")
+            message(FATAL_ERROR "can't get Vulkan SDK path")
+        endif()
+        if(PLATFORM_WIN32)
+            if (${CMAKE_SIZEOF_VOID_P} EQUAL 8)
+                set(Vulkan_BINARY "${VulkanSDKPath}/Bin/dxcompiler.dll")
+            else()
+                set(Vulkan_BINARY "${VulkanSDKPath}/Bin32/dxcompiler.dll")
+            endif()
+        elseif(PLATFORM_LINUX)
+            set(Vulkan_BINARY "${VulkanSDKPath}/bin/dxcompiler.so")
+        endif()
+    endif()
+endif()
+# Try to find Vulkan SDK from environment variable
+if(NOT Vulkan_FOUND)
+    if(EXISTS "$ENV{VULKAN_SDK}")
+        set(Vulkan_FOUND TRUE)
+        if(PLATFORM_WIN32)
+            if (${CMAKE_SIZEOF_VOID_P} EQUAL 8)
+                set(Vulkan_LIBRARY "$ENV{VULKAN_SDK}/Lib")
+                set(Vulkan_BINARY "$ENV{VULKAN_SDK}/Bin/dxcompiler.dll")
+            else()
+                set(Vulkan_LIBRARY "$ENV{VULKAN_SDK}/Lib32")
+                set(Vulkan_BINARY "$ENV{VULKAN_SDK}/Bin32/dxcompiler.dll")
+            endif()
+        elseif(PLATFORM_LINUX)
+            set(Vulkan_LIBRARY "$ENV{VULKAN_SDK}/lib")
+            set(Vulkan_BINARY "$ENV{VULKAN_SDK}/bin/dxcompiler.so")
+        endif()
+    endif()
+endif()
+if(EXISTS ${Vulkan_BINARY})
+    set(HAS_VK_DXIL_COMPILER TRUE CACHE INTERNAL "" FORCE)
+    set(DXC_VK_COMPILER_PATH "${Vulkan_BINARY}" CACHE INTERNAL "" FORCE)
+    target_compile_definitions(Diligent-GraphicsEngineVk-static PRIVATE HAS_VK_DXIL_COMPILER)
+    message(STATUS "Found DXIL compiler for Vulkan")
+endif()
+
 if(PLATFORM_WIN32)
     # Use Volk
 elseif(PLATFORM_MACOS)
-- 
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