d3d11: Implement d3d11_immediate_context_IASetInputLayout().

dlls/d3d11/d3d11_private.h

@@ -222,6 +222,7 @@ HRESULT d3d_input_layout_create(struct d3d_device *device,
         const D3D11_INPUT_ELEMENT_DESC *element_descs, UINT element_count,
         const void *shader_byte_code, SIZE_T shader_byte_code_length,
         struct d3d_input_layout **layout) DECLSPEC_HIDDEN;
+struct d3d_input_layout *unsafe_impl_from_ID3D11InputLayout(ID3D11InputLayout *iface) DECLSPEC_HIDDEN;
 struct d3d_input_layout *unsafe_impl_from_ID3D10InputLayout(ID3D10InputLayout *iface) DECLSPEC_HIDDEN;
 
 /* ID3D11VertexShader, ID3D10VertexShader */

dlls/d3d11/device.c

@@ -202,7 +202,14 @@ static void STDMETHODCALLTYPE d3d11_immediate_context_PSSetConstantBuffers(ID3D1
 static void STDMETHODCALLTYPE d3d11_immediate_context_IASetInputLayout(ID3D11DeviceContext *iface,
         ID3D11InputLayout *input_layout)
 {
-    FIXME("iface %p, input_layout %p stub!\n", iface, input_layout);
+    struct d3d_device *device = device_from_immediate_ID3D11DeviceContext(iface);
+    struct d3d_input_layout *layout = unsafe_impl_from_ID3D11InputLayout(input_layout);
+
+    TRACE("iface %p, input_layout %p.\n", iface, input_layout);
+
+    wined3d_mutex_lock();
+    wined3d_device_set_vertex_declaration(device->wined3d_device, layout ? layout->wined3d_decl : NULL);
+    wined3d_mutex_unlock();
 }
 
 static void STDMETHODCALLTYPE d3d11_immediate_context_IASetVertexBuffers(ID3D11DeviceContext *iface,

dlls/d3d11/inputlayout.c

@@ -379,6 +379,15 @@ HRESULT d3d_input_layout_create(struct d3d_device *device,
     return S_OK;
 }
 
+struct d3d_input_layout *unsafe_impl_from_ID3D11InputLayout(ID3D11InputLayout *iface)
+{
+    if (!iface)
+        return NULL;
+    assert(iface->lpVtbl == &d3d11_input_layout_vtbl);
+
+    return impl_from_ID3D11InputLayout(iface);
+}
+
 struct d3d_input_layout *unsafe_impl_from_ID3D10InputLayout(ID3D10InputLayout *iface)
 {
     if (!iface)