d3d12: Implement D3D12CreateRootSignatureDeserializer().

dlls/d3d12/Makefile.in

 MODULE    = d3d12.dll
 IMPORTLIB = d3d12
+EXTRALIBS = $(VKD3D_LIBS)
+EXTRAINCL = $(VKD3D_CFLAGS)
 
 C_SRCS = \
 	d3d12_main.c

dlls/d3d12/d3d12.spec

@@ -4,5 +4,5 @@
 103 stub D3D12CoreCreateLayeredDevice
 104 stub D3D12CoreGetLayeredDeviceSize
 105 stub D3D12CoreRegisterLayers
-106 stub D3D12CreateRootSignatureDeserializer
+106 stdcall D3D12CreateRootSignatureDeserializer(ptr long ptr ptr)
 107 stub D3D12SerializeRootSignature

dlls/d3d12/d3d12_main.c

@@ -20,9 +20,18 @@
 #include "config.h"
 #include "wine/port.h"
 
+#define VK_NO_PROTOTYPES
+#define VKD3D_NO_VULKAN_H
+#define VKD3D_NO_WIN32_TYPES
+#define WINE_VK_ALIGN(x)
+
 #include "wine/debug.h"
+#include "wine/vulkan.h"
+
 #include "d3d12.h"
 
+#include <vkd3d.h>
+
 WINE_DEFAULT_DEBUG_CHANNEL(d3d12);
 
 HRESULT WINAPI D3D12GetDebugInterface(REFIID iid, void **debug)
@@ -40,3 +49,12 @@ HRESULT WINAPI D3D12CreateDevice(IUnknown *adapter, D3D_FEATURE_LEVEL minimum_fe
 
     return E_NOTIMPL;
 }
+
+HRESULT WINAPI D3D12CreateRootSignatureDeserializer(const void *data, SIZE_T data_size,
+        REFIID iid, void **deserializer)
+{
+    TRACE("data %p, data_size %lu, iid %s, deserializer %p.\n",
+            data, data_size, debugstr_guid(iid), deserializer);
+
+    return vkd3d_create_root_signature_deserializer(data, data_size, iid, deserializer);
+}