[PATCH 4/5] wined3d: Don't require wined3d object parents to be COM objects.

Henri Verbeet hverbeet at codeweavers.com
Tue Aug 31 11:41:40 CDT 2010


---
 dlls/d3d10core/inputlayout.c     |    4 +-
 dlls/d3d10core/shader.c          |   15 ++--
 dlls/d3d10core/texture2d.c       |    7 +-
 dlls/d3d10core/view.c            |   12 +---
 dlls/d3d8/cubetexture.c          |   23 +++--
 dlls/d3d8/device.c               |  162 ++++++++++++++++++++++---------------
 dlls/d3d8/indexbuffer.c          |    5 +-
 dlls/d3d8/pixelshader.c          |    5 +-
 dlls/d3d8/surface.c              |    5 +-
 dlls/d3d8/swapchain.c            |   21 +++--
 dlls/d3d8/texture.c              |   18 +++--
 dlls/d3d8/vertexbuffer.c         |    5 +-
 dlls/d3d8/vertexdeclaration.c    |   10 +--
 dlls/d3d8/vertexshader.c         |    5 +-
 dlls/d3d8/volume.c               |    2 +-
 dlls/d3d8/volumetexture.c        |   22 +++--
 dlls/d3d9/cubetexture.c          |   25 ++++---
 dlls/d3d9/device.c               |  124 +++++++++++++++++++----------
 dlls/d3d9/indexbuffer.c          |    5 +-
 dlls/d3d9/pixelshader.c          |   23 +++---
 dlls/d3d9/surface.c              |    5 +-
 dlls/d3d9/swapchain.c            |   39 ++++++---
 dlls/d3d9/texture.c              |   20 +++--
 dlls/d3d9/vertexbuffer.c         |    5 +-
 dlls/d3d9/vertexdeclaration.c    |   41 +++++-----
 dlls/d3d9/vertexshader.c         |   24 +++---
 dlls/d3d9/volume.c               |    2 +-
 dlls/d3d9/volumetexture.c        |   20 +++--
 dlls/ddraw/ddraw.c               |   46 +++++------
 dlls/ddraw/device.c              |   55 ++++---------
 dlls/ddraw/palette.c             |    2 +-
 dlls/ddraw/surface.c             |   36 ++-------
 dlls/ddraw/vertexbuffer.c        |    2 +-
 dlls/dxgi/device.c               |   11 +--
 dlls/dxgi/factory.c              |    8 +--
 dlls/dxgi/swapchain.c            |   12 +--
 dlls/wined3d/basetexture.c       |    2 +-
 dlls/wined3d/buffer.c            |    9 +-
 dlls/wined3d/cubetexture.c       |    9 ++-
 dlls/wined3d/device.c            |   71 +++++++++--------
 dlls/wined3d/directx.c           |   12 ++--
 dlls/wined3d/palette.c           |   12 +--
 dlls/wined3d/resource.c          |   12 +---
 dlls/wined3d/shader.c            |   39 +++------
 dlls/wined3d/surface.c           |    2 +-
 dlls/wined3d/surface_base.c      |   12 ++-
 dlls/wined3d/swapchain.c         |    2 +-
 dlls/wined3d/swapchain_base.c    |   11 +--
 dlls/wined3d/texture.c           |    9 ++-
 dlls/wined3d/vertexdeclaration.c |   12 +--
 dlls/wined3d/view.c              |   11 +--
 dlls/wined3d/volume.c            |    9 ++-
 dlls/wined3d/volumetexture.c     |    9 ++-
 dlls/wined3d/wined3d_main.c      |    2 +-
 dlls/wined3d/wined3d_private.h   |   52 ++++++------
 include/wine/wined3d.idl         |   93 +++++++++++-----------
 56 files changed, 613 insertions(+), 603 deletions(-)

diff --git a/dlls/d3d10core/inputlayout.c b/dlls/d3d10core/inputlayout.c
index bdbff3a..2b8b716 100644
--- a/dlls/d3d10core/inputlayout.c
+++ b/dlls/d3d10core/inputlayout.c
@@ -227,8 +227,8 @@ HRESULT d3d10_input_layout_init(struct d3d10_input_layout *layout, struct d3d10_
         return hr;
     }
 
-    hr = IWineD3DDevice_CreateVertexDeclaration(device->wined3d_device, &layout->wined3d_decl,
-            (IUnknown *)layout, &d3d10_input_layout_wined3d_parent_ops, wined3d_elements, wined3d_element_count);
+    hr = IWineD3DDevice_CreateVertexDeclaration(device->wined3d_device, wined3d_elements, wined3d_element_count,
+            layout, &d3d10_input_layout_wined3d_parent_ops, &layout->wined3d_decl);
     HeapFree(GetProcessHeap(), 0, wined3d_elements);
     if (FAILED(hr))
     {
diff --git a/dlls/d3d10core/shader.c b/dlls/d3d10core/shader.c
index 256f281..a072cb9 100644
--- a/dlls/d3d10core/shader.c
+++ b/dlls/d3d10core/shader.c
@@ -259,9 +259,8 @@ HRESULT d3d10_vertex_shader_init(struct d3d10_vertex_shader *shader, struct d3d1
         return hr;
     }
 
-    hr = IWineD3DDevice_CreateVertexShader(device->wined3d_device,
-            shader_info.shader_code, &shader->output_signature, &shader->wined3d_shader,
-            (IUnknown *)shader, &d3d10_vertex_shader_wined3d_parent_ops);
+    hr = IWineD3DDevice_CreateVertexShader(device->wined3d_device, shader_info.shader_code,
+            &shader->output_signature, shader, &d3d10_vertex_shader_wined3d_parent_ops, &shader->wined3d_shader);
     if (FAILED(hr))
     {
         WARN("Failed to create wined3d vertex shader, hr %#x.\n", hr);
@@ -394,9 +393,8 @@ HRESULT d3d10_geometry_shader_init(struct d3d10_geometry_shader *shader, struct
         return hr;
     }
 
-    hr = IWineD3DDevice_CreateGeometryShader(device->wined3d_device,
-            shader_info.shader_code, &shader->output_signature, &shader->wined3d_shader,
-            (IUnknown *)shader, &d3d10_geometry_shader_wined3d_parent_ops);
+    hr = IWineD3DDevice_CreateGeometryShader(device->wined3d_device, shader_info.shader_code,
+            &shader->output_signature, shader, &d3d10_geometry_shader_wined3d_parent_ops, &shader->wined3d_shader);
     if (FAILED(hr))
     {
         WARN("Failed to create wined3d vertex shader, hr %#x.\n", hr);
@@ -534,9 +532,8 @@ HRESULT d3d10_pixel_shader_init(struct d3d10_pixel_shader *shader, struct d3d10_
         return hr;
     }
 
-    hr = IWineD3DDevice_CreatePixelShader(device->wined3d_device,
-            shader_info.shader_code, &shader->output_signature, &shader->wined3d_shader,
-            (IUnknown *)shader, &d3d10_pixel_shader_wined3d_parent_ops);
+    hr = IWineD3DDevice_CreatePixelShader(device->wined3d_device, shader_info.shader_code,
+            &shader->output_signature, shader, &d3d10_pixel_shader_wined3d_parent_ops, &shader->wined3d_shader);
     if (FAILED(hr))
     {
         WARN("Failed to create wined3d pixel shader, hr %#x.\n", hr);
diff --git a/dlls/d3d10core/texture2d.c b/dlls/d3d10core/texture2d.c
index 3d5eea1..4ade9ab 100644
--- a/dlls/d3d10core/texture2d.c
+++ b/dlls/d3d10core/texture2d.c
@@ -228,11 +228,10 @@ HRESULT d3d10_texture2d_init(struct d3d10_texture2d *texture, struct d3d10_devic
         FIXME("Implement DXGI<->wined3d usage conversion\n");
 
         hr = IWineD3DDevice_CreateSurface(device->wined3d_device, desc->Width, desc->Height,
-                wined3dformat_from_dxgi_format(desc->Format), FALSE, FALSE, 0,
-                &texture->wined3d_surface, desc->Usage, WINED3DPOOL_DEFAULT,
+                wined3dformat_from_dxgi_format(desc->Format), FALSE, FALSE, 0, desc->Usage, WINED3DPOOL_DEFAULT,
                 desc->SampleDesc.Count > 1 ? desc->SampleDesc.Count : WINED3DMULTISAMPLE_NONE,
-                desc->SampleDesc.Quality, SURFACE_OPENGL, (IUnknown *)texture,
-                &d3d10_texture2d_wined3d_parent_ops);
+                desc->SampleDesc.Quality, SURFACE_OPENGL, texture, &d3d10_texture2d_wined3d_parent_ops,
+                &texture->wined3d_surface);
         if (FAILED(hr))
         {
             ERR("CreateSurface failed, returning %#x\n", hr);
diff --git a/dlls/d3d10core/view.c b/dlls/d3d10core/view.c
index 63bc01e..72b7f4e 100644
--- a/dlls/d3d10core/view.c
+++ b/dlls/d3d10core/view.c
@@ -388,17 +388,9 @@ static void STDMETHODCALLTYPE d3d10_rendertarget_view_GetResource(ID3D10RenderTa
         return;
     }
 
-    hr = IWineD3DResource_GetParent(wined3d_resource, &parent);
-    IWineD3DResource_Release(wined3d_resource);
-    if (FAILED(hr))
-    {
-        ERR("Failed to get wined3d resource parent, hr %#x\n", hr);
-        *resource = NULL;
-        return;
-    }
-
+    parent = IWineD3DResource_GetParent(wined3d_resource);
     hr = IUnknown_QueryInterface(parent, &IID_ID3D10Resource, (void **)&resource);
-    IUnknown_Release(parent);
+    IWineD3DResource_Release(wined3d_resource);
     if (FAILED(hr))
     {
         ERR("Resource parent isn't a d3d10 resource, hr %#x\n", hr);
diff --git a/dlls/d3d8/cubetexture.c b/dlls/d3d8/cubetexture.c
index 7e48dab..b9b411a 100644
--- a/dlls/d3d8/cubetexture.c
+++ b/dlls/d3d8/cubetexture.c
@@ -253,22 +253,27 @@ static HRESULT WINAPI IDirect3DCubeTexture8Impl_GetLevelDesc(LPDIRECT3DCUBETEXTU
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DCubeTexture8Impl_GetCubeMapSurface(LPDIRECT3DCUBETEXTURE8 iface, D3DCUBEMAP_FACES FaceType, UINT Level, IDirect3DSurface8 **ppCubeMapSurface) {
+static HRESULT WINAPI IDirect3DCubeTexture8Impl_GetCubeMapSurface(IDirect3DCubeTexture8 *iface,
+        D3DCUBEMAP_FACES FaceType, UINT Level, IDirect3DSurface8 **ppCubeMapSurface)
+{
     IDirect3DCubeTexture8Impl *This = (IDirect3DCubeTexture8Impl *)iface;
-    HRESULT hrc = D3D_OK;
     IWineD3DSurface *mySurface = NULL;
+    HRESULT hr;
 
     TRACE("iface %p, face %#x, level %u, surface %p.\n", iface, FaceType, Level, ppCubeMapSurface);
 
     wined3d_mutex_lock();
-    hrc = IWineD3DCubeTexture_GetCubeMapSurface(This->wineD3DCubeTexture, (WINED3DCUBEMAP_FACES) FaceType, Level, &mySurface);
-    if (hrc == D3D_OK && NULL != ppCubeMapSurface) {
-       IWineD3DCubeTexture_GetParent(mySurface, (IUnknown **)ppCubeMapSurface);
+    hr = IWineD3DCubeTexture_GetCubeMapSurface(This->wineD3DCubeTexture,
+            (WINED3DCUBEMAP_FACES) FaceType, Level, &mySurface);
+    if (SUCCEEDED(hr) && ppCubeMapSurface)
+    {
+       *ppCubeMapSurface = IWineD3DCubeTexture_GetParent(mySurface);
+       IDirect3DSurface8_AddRef(*ppCubeMapSurface);
        IWineD3DCubeTexture_Release(mySurface);
     }
     wined3d_mutex_unlock();
 
-    return hrc;
+    return hr;
 }
 
 static HRESULT WINAPI IDirect3DCubeTexture8Impl_LockRect(LPDIRECT3DCUBETEXTURE8 iface, D3DCUBEMAP_FACES FaceType, UINT Level, D3DLOCKED_RECT* pLockedRect, CONST RECT *pRect, DWORD Flags) {
@@ -357,9 +362,9 @@ HRESULT cubetexture_init(IDirect3DCubeTexture8Impl *texture, IDirect3DDevice8Imp
     texture->ref = 1;
 
     wined3d_mutex_lock();
-    hr = IWineD3DDevice_CreateCubeTexture(device->WineD3DDevice, edge_length, levels, usage & WINED3DUSAGE_MASK,
-            wined3dformat_from_d3dformat(format), pool, &texture->wineD3DCubeTexture,
-            (IUnknown *)texture, &d3d8_cubetexture_wined3d_parent_ops);
+    hr = IWineD3DDevice_CreateCubeTexture(device->WineD3DDevice, edge_length, levels,
+            usage & WINED3DUSAGE_MASK, wined3dformat_from_d3dformat(format), pool, texture,
+            &d3d8_cubetexture_wined3d_parent_ops, &texture->wineD3DCubeTexture);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/d3d8/device.c b/dlls/d3d8/device.c
index 9572199..59e318c 100644
--- a/dlls/d3d8/device.c
+++ b/dlls/d3d8/device.c
@@ -260,8 +260,7 @@ static ULONG WINAPI D3D8CB_DestroySwapChain(IWineD3DSwapChain *swapchain)
 
     TRACE("swapchain %p.\n", swapchain);
 
-    IWineD3DSwapChain_GetParent(swapchain, &parent);
-    IUnknown_Release(parent);
+    parent = IWineD3DSwapChain_GetParent(swapchain);
     return IUnknown_Release(parent);
 }
 
@@ -370,10 +369,11 @@ static HRESULT WINAPI IDirect3DDevice8Impl_ResourceManagerDiscardBytes(LPDIRECT3
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DDevice8Impl_GetDirect3D(LPDIRECT3DDEVICE8 iface, IDirect3D8** ppD3D8) {
+static HRESULT WINAPI IDirect3DDevice8Impl_GetDirect3D(IDirect3DDevice8 *iface, IDirect3D8 **ppD3D8)
+{
     IDirect3DDevice8Impl *This = (IDirect3DDevice8Impl *)iface;
-    HRESULT hr = D3D_OK;
-    IWineD3D* pWineD3D;
+    IWineD3D *pWineD3D;
+    HRESULT hr;
 
     TRACE("iface %p, d3d8 %p.\n", iface, ppD3D8);
 
@@ -383,11 +383,14 @@ static HRESULT WINAPI IDirect3DDevice8Impl_GetDirect3D(LPDIRECT3DDEVICE8 iface,
 
     wined3d_mutex_lock();
     hr = IWineD3DDevice_GetDirect3D(This->WineD3DDevice, &pWineD3D);
-    if (hr == D3D_OK && pWineD3D != NULL)
+    if (SUCCEEDED(hr) && pWineD3D)
     {
-        IWineD3D_GetParent(pWineD3D,(IUnknown **)ppD3D8);
+        *ppD3D8 = IWineD3D_GetParent(pWineD3D);
+        IDirect3D8_AddRef(*ppD3D8);
         IWineD3D_Release(pWineD3D);
-    } else {
+    }
+    else
+    {
         FIXME("Call to IWineD3DDevice_GetDirect3D failed\n");
         *ppD3D8 = NULL;
     }
@@ -589,23 +592,27 @@ static HRESULT WINAPI IDirect3DDevice8Impl_Present(LPDIRECT3DDEVICE8 iface, CONS
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DDevice8Impl_GetBackBuffer(LPDIRECT3DDEVICE8 iface, UINT BackBuffer, D3DBACKBUFFER_TYPE Type, IDirect3DSurface8** ppBackBuffer) {
+static HRESULT WINAPI IDirect3DDevice8Impl_GetBackBuffer(IDirect3DDevice8 *iface,
+        UINT BackBuffer, D3DBACKBUFFER_TYPE Type, IDirect3DSurface8 **ppBackBuffer)
+{
     IDirect3DDevice8Impl *This = (IDirect3DDevice8Impl *)iface;
     IWineD3DSurface *retSurface = NULL;
-    HRESULT rc = D3D_OK;
+    HRESULT hr;
 
     TRACE("iface %p, backbuffer_idx %u, backbuffer_type %#x, backbuffer %p.\n",
             iface, BackBuffer, Type, ppBackBuffer);
 
     wined3d_mutex_lock();
-    rc = IWineD3DDevice_GetBackBuffer(This->WineD3DDevice, 0, BackBuffer, (WINED3DBACKBUFFER_TYPE) Type, &retSurface);
-    if (rc == D3D_OK && NULL != retSurface && NULL != ppBackBuffer) {
-        IWineD3DSurface_GetParent(retSurface, (IUnknown **)ppBackBuffer);
+    hr = IWineD3DDevice_GetBackBuffer(This->WineD3DDevice, 0, BackBuffer, (WINED3DBACKBUFFER_TYPE)Type, &retSurface);
+    if (SUCCEEDED(hr) && retSurface && ppBackBuffer)
+    {
+        *ppBackBuffer = IWineD3DSurface_GetParent(retSurface);
+        IDirect3DSurface8_AddRef(*ppBackBuffer);
         IWineD3DSurface_Release(retSurface);
     }
     wined3d_mutex_unlock();
 
-    return rc;
+    return hr;
 }
 
 static HRESULT WINAPI IDirect3DDevice8Impl_GetRasterStatus(LPDIRECT3DDEVICE8 iface, D3DRASTER_STATUS* pRasterStatus) {
@@ -984,10 +991,12 @@ static HRESULT WINAPI IDirect3DDevice8Impl_SetRenderTarget(LPDIRECT3DDEVICE8 ifa
     return hr;
 }
 
-static HRESULT  WINAPI  IDirect3DDevice8Impl_GetRenderTarget(LPDIRECT3DDEVICE8 iface, IDirect3DSurface8** ppRenderTarget) {
+static HRESULT WINAPI IDirect3DDevice8Impl_GetRenderTarget(IDirect3DDevice8 *iface,
+        IDirect3DSurface8 **ppRenderTarget)
+{
     IDirect3DDevice8Impl *This = (IDirect3DDevice8Impl *)iface;
-    HRESULT hr = D3D_OK;
     IWineD3DSurface *pRenderTarget;
+    HRESULT hr;
 
     TRACE("iface %p, render_target %p.\n", iface, ppRenderTarget);
 
@@ -997,11 +1006,14 @@ static HRESULT  WINAPI  IDirect3DDevice8Impl_GetRenderTarget(LPDIRECT3DDEVICE8 i
 
     wined3d_mutex_lock();
     hr = IWineD3DDevice_GetRenderTarget(This->WineD3DDevice, 0, &pRenderTarget);
-
-    if (hr == D3D_OK && pRenderTarget != NULL) {
-        IWineD3DSurface_GetParent(pRenderTarget,(IUnknown**)ppRenderTarget);
+    if (SUCCEEDED(hr) && pRenderTarget)
+    {
+        *ppRenderTarget = IWineD3DSurface_GetParent(pRenderTarget);
+        IDirect3DSurface8_AddRef(*ppRenderTarget);
         IWineD3DSurface_Release(pRenderTarget);
-    } else {
+    }
+    else
+    {
         FIXME("Call to IWineD3DDevice_GetRenderTarget failed\n");
         *ppRenderTarget = NULL;
     }
@@ -1010,10 +1022,12 @@ static HRESULT  WINAPI  IDirect3DDevice8Impl_GetRenderTarget(LPDIRECT3DDEVICE8 i
     return hr;
 }
 
-static HRESULT  WINAPI  IDirect3DDevice8Impl_GetDepthStencilSurface(LPDIRECT3DDEVICE8 iface, IDirect3DSurface8** ppZStencilSurface) {
+static HRESULT WINAPI IDirect3DDevice8Impl_GetDepthStencilSurface(IDirect3DDevice8 *iface,
+        IDirect3DSurface8 **ppZStencilSurface)
+{
     IDirect3DDevice8Impl *This = (IDirect3DDevice8Impl *)iface;
-    HRESULT hr = D3D_OK;
     IWineD3DSurface *pZStencilSurface;
+    HRESULT hr;
 
     TRACE("iface %p, depth_stencil %p.\n", iface, ppZStencilSurface);
 
@@ -1022,11 +1036,15 @@ static HRESULT  WINAPI  IDirect3DDevice8Impl_GetDepthStencilSurface(LPDIRECT3DDE
     }
 
     wined3d_mutex_lock();
-    hr=IWineD3DDevice_GetDepthStencilSurface(This->WineD3DDevice,&pZStencilSurface);
-    if (hr == WINED3D_OK) {
-        IWineD3DSurface_GetParent(pZStencilSurface,(IUnknown**)ppZStencilSurface);
+    hr = IWineD3DDevice_GetDepthStencilSurface(This->WineD3DDevice, &pZStencilSurface);
+    if (SUCCEEDED(hr))
+    {
+        *ppZStencilSurface = IWineD3DSurface_GetParent(pZStencilSurface);
+        IDirect3DSurface8_AddRef(*ppZStencilSurface);
         IWineD3DSurface_Release(pZStencilSurface);
-    }else{
+    }
+    else
+    {
         if (hr != WINED3DERR_NOTFOUND)
                 FIXME("Call to IWineD3DDevice_GetDepthStencilSurface failed with 0x%08x\n", hr);
         *ppZStencilSurface = NULL;
@@ -1467,7 +1485,9 @@ static HRESULT WINAPI IDirect3DDevice8Impl_GetClipStatus(LPDIRECT3DDEVICE8 iface
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DDevice8Impl_GetTexture(LPDIRECT3DDEVICE8 iface, DWORD Stage,IDirect3DBaseTexture8** ppTexture) {
+static HRESULT WINAPI IDirect3DDevice8Impl_GetTexture(IDirect3DDevice8 *iface,
+        DWORD Stage, IDirect3DBaseTexture8 **ppTexture)
+{
     IDirect3DDevice8Impl *This = (IDirect3DDevice8Impl *)iface;
     IWineD3DBaseTexture *retTexture;
     HRESULT hr;
@@ -1490,7 +1510,8 @@ static HRESULT WINAPI IDirect3DDevice8Impl_GetTexture(LPDIRECT3DDEVICE8 iface, D
 
     if (retTexture)
     {
-        IWineD3DBaseTexture_GetParent(retTexture, (IUnknown **)ppTexture);
+        *ppTexture = IWineD3DBaseTexture_GetParent(retTexture);
+        IDirect3DBaseTexture8_AddRef(*ppTexture);
         IWineD3DBaseTexture_Release(retTexture);
     }
     else
@@ -1900,22 +1921,23 @@ static HRESULT WINAPI IDirect3DDevice8Impl_SetVertexShader(LPDIRECT3DDEVICE8 ifa
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DDevice8Impl_GetVertexShader(LPDIRECT3DDEVICE8 iface, DWORD* ppShader) {
+static HRESULT WINAPI IDirect3DDevice8Impl_GetVertexShader(IDirect3DDevice8 *iface, DWORD *ppShader)
+{
     IDirect3DDevice8Impl *This = (IDirect3DDevice8Impl *)iface;
     IWineD3DVertexDeclaration *wined3d_declaration;
     IDirect3DVertexDeclaration8 *d3d8_declaration;
-    HRESULT hrc;
+    HRESULT hr;
 
     TRACE("iface %p, shader %p.\n", iface, ppShader);
 
     wined3d_mutex_lock();
-    hrc = IWineD3DDevice_GetVertexDeclaration(This->WineD3DDevice, &wined3d_declaration);
-    if (FAILED(hrc))
+    hr = IWineD3DDevice_GetVertexDeclaration(This->WineD3DDevice, &wined3d_declaration);
+    if (FAILED(hr))
     {
         wined3d_mutex_unlock();
         WARN("(%p) : Call to IWineD3DDevice_GetVertexDeclaration failed %#x (device %p)\n",
-                This, hrc, This->WineD3DDevice);
-        return hrc;
+                This, hr, This->WineD3DDevice);
+        return hr;
     }
 
     if (!wined3d_declaration)
@@ -1925,18 +1947,14 @@ static HRESULT WINAPI IDirect3DDevice8Impl_GetVertexShader(LPDIRECT3DDEVICE8 ifa
         return D3D_OK;
     }
 
-    hrc = IWineD3DVertexDeclaration_GetParent(wined3d_declaration, (IUnknown **)&d3d8_declaration);
+    d3d8_declaration = IWineD3DVertexDeclaration_GetParent(wined3d_declaration);
     IWineD3DVertexDeclaration_Release(wined3d_declaration);
     wined3d_mutex_unlock();
-    if (SUCCEEDED(hrc))
-    {
-        *ppShader = ((IDirect3DVertexDeclaration8Impl *)d3d8_declaration)->shader_handle;
-        IDirect3DVertexDeclaration8_Release(d3d8_declaration);
-    }
+    *ppShader = ((IDirect3DVertexDeclaration8Impl *)d3d8_declaration)->shader_handle;
 
     TRACE("(%p) : returning %#x\n", This, *ppShader);
 
-    return hrc;
+    return hr;
 }
 
 static HRESULT  WINAPI  IDirect3DDevice8Impl_DeleteVertexShader(LPDIRECT3DDEVICE8 iface, DWORD pShader) {
@@ -2105,10 +2123,12 @@ static HRESULT WINAPI IDirect3DDevice8Impl_SetIndices(LPDIRECT3DDEVICE8 iface, I
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DDevice8Impl_GetIndices(LPDIRECT3DDEVICE8 iface, IDirect3DIndexBuffer8** ppIndexData,UINT* pBaseVertexIndex) {
+static HRESULT WINAPI IDirect3DDevice8Impl_GetIndices(IDirect3DDevice8 *iface,
+        IDirect3DIndexBuffer8 **ppIndexData, UINT *pBaseVertexIndex)
+{
     IDirect3DDevice8Impl *This = (IDirect3DDevice8Impl *)iface;
     IWineD3DBuffer *retIndexData = NULL;
-    HRESULT rc = D3D_OK;
+    HRESULT hr;
 
     TRACE("iface %p, buffer %p, base_vertex_index %p.\n", iface, ppIndexData, pBaseVertexIndex);
 
@@ -2119,17 +2139,19 @@ static HRESULT WINAPI IDirect3DDevice8Impl_GetIndices(LPDIRECT3DDEVICE8 iface, I
     /* The case from UINT to INT is safe because d3d8 will never set negative values */
     wined3d_mutex_lock();
     IWineD3DDevice_GetBaseVertexIndex(This->WineD3DDevice, (INT *) pBaseVertexIndex);
-    rc = IWineD3DDevice_GetIndexBuffer(This->WineD3DDevice, &retIndexData);
-    if (SUCCEEDED(rc) && retIndexData) {
-        IWineD3DBuffer_GetParent(retIndexData, (IUnknown **)ppIndexData);
+    hr = IWineD3DDevice_GetIndexBuffer(This->WineD3DDevice, &retIndexData);
+    if (SUCCEEDED(hr) && retIndexData)
+    {
+        *ppIndexData = IWineD3DBuffer_GetParent(retIndexData);
+        IDirect3DIndexBuffer8_AddRef(*ppIndexData);
         IWineD3DBuffer_Release(retIndexData);
     } else {
-        if (FAILED(rc)) FIXME("Call to GetIndices failed\n");
+        if (FAILED(hr)) FIXME("Call to GetIndices failed\n");
         *ppIndexData = NULL;
     }
     wined3d_mutex_unlock();
 
-    return rc;
+    return hr;
 }
 
 static HRESULT WINAPI IDirect3DDevice8Impl_CreatePixelShader(IDirect3DDevice8 *iface,
@@ -2217,10 +2239,11 @@ static HRESULT WINAPI IDirect3DDevice8Impl_SetPixelShader(LPDIRECT3DDEVICE8 ifac
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DDevice8Impl_GetPixelShader(LPDIRECT3DDEVICE8 iface, DWORD* ppShader) {
+static HRESULT WINAPI IDirect3DDevice8Impl_GetPixelShader(IDirect3DDevice8 *iface, DWORD *ppShader)
+{
     IDirect3DDevice8Impl *This = (IDirect3DDevice8Impl *)iface;
     IWineD3DPixelShader *object;
-    HRESULT hrc = D3D_OK;
+    HRESULT hr;
 
     TRACE("iface %p, shader %p.\n", iface, ppShader);
 
@@ -2230,21 +2253,23 @@ static HRESULT WINAPI IDirect3DDevice8Impl_GetPixelShader(LPDIRECT3DDEVICE8 ifac
     }
 
     wined3d_mutex_lock();
-    hrc = IWineD3DDevice_GetPixelShader(This->WineD3DDevice, &object);
-    if (D3D_OK == hrc && NULL != object) {
+    hr = IWineD3DDevice_GetPixelShader(This->WineD3DDevice, &object);
+    if (SUCCEEDED(hr) && object)
+    {
         IDirect3DPixelShader8Impl *d3d8_shader;
-        hrc = IWineD3DPixelShader_GetParent(object, (IUnknown **)&d3d8_shader);
+        d3d8_shader = IWineD3DPixelShader_GetParent(object);
         IWineD3DPixelShader_Release(object);
         *ppShader = d3d8_shader->handle;
-        IDirect3DPixelShader8_Release((IDirect3DPixelShader8 *)d3d8_shader);
-    } else {
+    }
+    else
+    {
         *ppShader = 0;
     }
     wined3d_mutex_unlock();
 
     TRACE("(%p) : returning %#x\n", This, *ppShader);
 
-    return hrc;
+    return hr;
 }
 
 static HRESULT WINAPI IDirect3DDevice8Impl_DeletePixelShader(LPDIRECT3DDEVICE8 iface, DWORD pShader) {
@@ -2391,10 +2416,12 @@ static HRESULT WINAPI IDirect3DDevice8Impl_SetStreamSource(LPDIRECT3DDEVICE8 ifa
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DDevice8Impl_GetStreamSource(LPDIRECT3DDEVICE8 iface, UINT StreamNumber,IDirect3DVertexBuffer8** pStream,UINT* pStride) {
+static HRESULT WINAPI IDirect3DDevice8Impl_GetStreamSource(IDirect3DDevice8 *iface,
+        UINT StreamNumber, IDirect3DVertexBuffer8 **pStream, UINT *pStride)
+{
     IDirect3DDevice8Impl *This = (IDirect3DDevice8Impl *)iface;
     IWineD3DBuffer *retStream = NULL;
-    HRESULT rc = D3D_OK;
+    HRESULT hr;
 
     TRACE("iface %p, stream_idx %u, buffer %p, stride %p.\n",
             iface, StreamNumber, pStream, pStride);
@@ -2404,19 +2431,22 @@ static HRESULT WINAPI IDirect3DDevice8Impl_GetStreamSource(LPDIRECT3DDEVICE8 ifa
     }
 
     wined3d_mutex_lock();
-    rc = IWineD3DDevice_GetStreamSource(This->WineD3DDevice, StreamNumber, &retStream, 0 /* Offset in bytes */, pStride);
-    if (rc == D3D_OK  && NULL != retStream) {
-        IWineD3DBuffer_GetParent(retStream, (IUnknown **)pStream);
+    hr = IWineD3DDevice_GetStreamSource(This->WineD3DDevice, StreamNumber,
+            &retStream, 0 /* Offset in bytes */, pStride);
+    if (SUCCEEDED(hr) && retStream)
+    {
+        *pStream = IWineD3DBuffer_GetParent(retStream);
+        IDirect3DVertexBuffer8_AddRef(*pStream);
         IWineD3DBuffer_Release(retStream);
-    }else{
-        if (rc != D3D_OK){
-            FIXME("Call to GetStreamSource failed %p\n",  pStride);
-        }
+    }
+    else
+    {
+        if (FAILED(hr)) FIXME("Call to GetStreamSource failed, hr %#x.\n", hr);
         *pStream = NULL;
     }
     wined3d_mutex_unlock();
 
-    return rc;
+    return hr;
 }
 
 static const IDirect3DDevice8Vtbl Direct3DDevice8_Vtbl =
diff --git a/dlls/d3d8/indexbuffer.c b/dlls/d3d8/indexbuffer.c
index b98c2d3..0e0b42d 100644
--- a/dlls/d3d8/indexbuffer.c
+++ b/dlls/d3d8/indexbuffer.c
@@ -268,9 +268,8 @@ HRESULT indexbuffer_init(IDirect3DIndexBuffer8Impl *buffer, IDirect3DDevice8Impl
     buffer->format = wined3dformat_from_d3dformat(format);
 
     wined3d_mutex_lock();
-    hr = IWineD3DDevice_CreateIndexBuffer(device->WineD3DDevice, size,
-            usage & WINED3DUSAGE_MASK, (WINED3DPOOL)pool, &buffer->wineD3DIndexBuffer,
-            (IUnknown *)buffer, &d3d8_indexbuffer_wined3d_parent_ops);
+    hr = IWineD3DDevice_CreateIndexBuffer(device->WineD3DDevice, size, usage & WINED3DUSAGE_MASK,
+            (WINED3DPOOL)pool, buffer, &d3d8_indexbuffer_wined3d_parent_ops, &buffer->wineD3DIndexBuffer);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/d3d8/pixelshader.c b/dlls/d3d8/pixelshader.c
index 7b6d4e5..6a3e031 100644
--- a/dlls/d3d8/pixelshader.c
+++ b/dlls/d3d8/pixelshader.c
@@ -100,9 +100,8 @@ HRESULT pixelshader_init(IDirect3DPixelShader8Impl *shader, IDirect3DDevice8Impl
     shader->handle = shader_handle;
 
     wined3d_mutex_lock();
-    hr = IWineD3DDevice_CreatePixelShader(device->WineD3DDevice, byte_code,
-            NULL, &shader->wineD3DPixelShader, (IUnknown *)shader,
-            &d3d8_pixelshader_wined3d_parent_ops);
+    hr = IWineD3DDevice_CreatePixelShader(device->WineD3DDevice, byte_code, NULL, shader,
+            &d3d8_pixelshader_wined3d_parent_ops, &shader->wineD3DPixelShader);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/d3d8/surface.c b/dlls/d3d8/surface.c
index cf72e3e..a71ab12 100644
--- a/dlls/d3d8/surface.c
+++ b/dlls/d3d8/surface.c
@@ -306,9 +306,8 @@ HRESULT surface_init(IDirect3DSurface8Impl *surface, IDirect3DDevice8Impl *devic
 
     wined3d_mutex_lock();
     hr = IWineD3DDevice_CreateSurface(device->WineD3DDevice, width, height, wined3dformat_from_d3dformat(format),
-            lockable, discard, level, &surface->wineD3DSurface, usage & WINED3DUSAGE_MASK, (WINED3DPOOL)pool,
-            multisample_type, multisample_quality, SURFACE_OPENGL, (IUnknown *)surface,
-            &d3d8_surface_wined3d_parent_ops);
+            lockable, discard, level, usage & WINED3DUSAGE_MASK, (WINED3DPOOL)pool, multisample_type,
+            multisample_quality, SURFACE_OPENGL, surface, &d3d8_surface_wined3d_parent_ops, &surface->wineD3DSurface);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/d3d8/swapchain.c b/dlls/d3d8/swapchain.c
index 1b807fb..1c2a535 100644
--- a/dlls/d3d8/swapchain.c
+++ b/dlls/d3d8/swapchain.c
@@ -83,23 +83,28 @@ static HRESULT WINAPI IDirect3DSwapChain8Impl_Present(LPDIRECT3DSWAPCHAIN8 iface
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DSwapChain8Impl_GetBackBuffer(LPDIRECT3DSWAPCHAIN8 iface, UINT iBackBuffer, D3DBACKBUFFER_TYPE Type, IDirect3DSurface8** ppBackBuffer) {
+static HRESULT WINAPI IDirect3DSwapChain8Impl_GetBackBuffer(IDirect3DSwapChain8 *iface,
+        UINT iBackBuffer, D3DBACKBUFFER_TYPE Type, IDirect3DSurface8 **ppBackBuffer)
+{
     IDirect3DSwapChain8Impl *This = (IDirect3DSwapChain8Impl *)iface;
-    HRESULT hrc = D3D_OK;
     IWineD3DSurface *mySurface = NULL;
+    HRESULT hr;
 
     TRACE("iface %p, backbuffer_idx %u, backbuffer_type %#x, backbuffer %p.\n",
             iface, iBackBuffer, Type, ppBackBuffer);
 
     wined3d_mutex_lock();
-    hrc = IWineD3DSwapChain_GetBackBuffer(This->wineD3DSwapChain, iBackBuffer, (WINED3DBACKBUFFER_TYPE )Type, &mySurface);
-    if (hrc == D3D_OK && NULL != mySurface) {
-       IWineD3DSurface_GetParent(mySurface, (IUnknown **)ppBackBuffer);
-       IWineD3DSurface_Release(mySurface);
+    hr = IWineD3DSwapChain_GetBackBuffer(This->wineD3DSwapChain, iBackBuffer,
+            (WINED3DBACKBUFFER_TYPE)Type, &mySurface);
+    if (SUCCEEDED(hr) && mySurface)
+    {
+        *ppBackBuffer = IWineD3DSurface_GetParent(mySurface);
+        IDirect3DSurface8_AddRef(*ppBackBuffer);
+        IWineD3DSurface_Release(mySurface);
     }
     wined3d_mutex_unlock();
 
-    return hrc;
+    return hr;
 }
 
 static const IDirect3DSwapChain8Vtbl Direct3DSwapChain8_Vtbl =
@@ -138,7 +143,7 @@ HRESULT swapchain_init(IDirect3DSwapChain8Impl *swapchain, IDirect3DDevice8Impl
 
     wined3d_mutex_lock();
     hr = IWineD3DDevice_CreateSwapChain(device->WineD3DDevice, &wined3d_parameters,
-            &swapchain->wineD3DSwapChain, (IUnknown *)swapchain, SURFACE_OPENGL);
+            SURFACE_OPENGL, swapchain, &swapchain->wineD3DSwapChain);
     wined3d_mutex_unlock();
 
     present_parameters->BackBufferWidth = wined3d_parameters.BackBufferWidth;
diff --git a/dlls/d3d8/texture.c b/dlls/d3d8/texture.c
index 67a60b4..a842160 100644
--- a/dlls/d3d8/texture.c
+++ b/dlls/d3d8/texture.c
@@ -251,22 +251,26 @@ static HRESULT WINAPI IDirect3DTexture8Impl_GetLevelDesc(LPDIRECT3DTEXTURE8 ifac
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DTexture8Impl_GetSurfaceLevel(LPDIRECT3DTEXTURE8 iface, UINT Level, IDirect3DSurface8 **ppSurfaceLevel) {
+static HRESULT WINAPI IDirect3DTexture8Impl_GetSurfaceLevel(IDirect3DTexture8 *iface,
+        UINT Level, IDirect3DSurface8 **ppSurfaceLevel)
+{
     IDirect3DTexture8Impl *This = (IDirect3DTexture8Impl *)iface;
-    HRESULT hrc = D3D_OK;
     IWineD3DSurface *mySurface = NULL;
+    HRESULT hr;
 
     TRACE("iface %p, level %u, surface %p.\n", iface, Level, ppSurfaceLevel);
 
     wined3d_mutex_lock();
-    hrc = IWineD3DTexture_GetSurfaceLevel(This->wineD3DTexture, Level, &mySurface);
-    if (hrc == D3D_OK && NULL != ppSurfaceLevel) {
-       IWineD3DSurface_GetParent(mySurface, (IUnknown **)ppSurfaceLevel);
+    hr = IWineD3DTexture_GetSurfaceLevel(This->wineD3DTexture, Level, &mySurface);
+    if (SUCCEEDED(hr) && ppSurfaceLevel)
+    {
+       *ppSurfaceLevel = IWineD3DSurface_GetParent(mySurface);
+       IDirect3DSurface8_AddRef(*ppSurfaceLevel);
        IWineD3DSurface_Release(mySurface);
     }
     wined3d_mutex_unlock();
 
-    return hrc;
+    return hr;
 }
 
 static HRESULT WINAPI IDirect3DTexture8Impl_LockRect(LPDIRECT3DTEXTURE8 iface, UINT Level, D3DLOCKED_RECT *pLockedRect, CONST RECT *pRect, DWORD Flags) {
@@ -357,7 +361,7 @@ HRESULT texture_init(IDirect3DTexture8Impl *texture, IDirect3DDevice8Impl *devic
     wined3d_mutex_lock();
     hr = IWineD3DDevice_CreateTexture(device->WineD3DDevice, width, height, levels,
             usage & WINED3DUSAGE_MASK, wined3dformat_from_d3dformat(format), pool,
-            &texture->wineD3DTexture, (IUnknown *)texture, &d3d8_texture_wined3d_parent_ops);
+            texture, &d3d8_texture_wined3d_parent_ops, &texture->wineD3DTexture);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/d3d8/vertexbuffer.c b/dlls/d3d8/vertexbuffer.c
index 476fcc4..eec89f7 100644
--- a/dlls/d3d8/vertexbuffer.c
+++ b/dlls/d3d8/vertexbuffer.c
@@ -271,9 +271,8 @@ HRESULT vertexbuffer_init(IDirect3DVertexBuffer8Impl *buffer, IDirect3DDevice8Im
     buffer->fvf = fvf;
 
     wined3d_mutex_lock();
-    hr = IWineD3DDevice_CreateVertexBuffer(device->WineD3DDevice, size,
-            usage & WINED3DUSAGE_MASK, (WINED3DPOOL)pool, &buffer->wineD3DVertexBuffer,
-            (IUnknown *)buffer, &d3d8_vertexbuffer_wined3d_parent_ops);
+    hr = IWineD3DDevice_CreateVertexBuffer(device->WineD3DDevice, size, usage & WINED3DUSAGE_MASK,
+            (WINED3DPOOL)pool, buffer, &d3d8_vertexbuffer_wined3d_parent_ops, &buffer->wineD3DVertexBuffer);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/d3d8/vertexdeclaration.c b/dlls/d3d8/vertexdeclaration.c
index 0d54eba..58573a5 100644
--- a/dlls/d3d8/vertexdeclaration.c
+++ b/dlls/d3d8/vertexdeclaration.c
@@ -399,9 +399,8 @@ HRESULT vertexdeclaration_init(IDirect3DVertexDeclaration8Impl *declaration,
     memcpy(declaration->elements, elements, declaration->elements_size);
 
     wined3d_mutex_lock();
-    hr = IWineD3DDevice_CreateVertexDeclaration(device->WineD3DDevice, &declaration->wined3d_vertex_declaration,
-            (IUnknown *)declaration, &d3d8_vertexdeclaration_wined3d_parent_ops,
-            wined3d_elements, wined3d_element_count);
+    hr = IWineD3DDevice_CreateVertexDeclaration(device->WineD3DDevice, wined3d_elements, wined3d_element_count,
+            declaration, &d3d8_vertexdeclaration_wined3d_parent_ops, &declaration->wined3d_vertex_declaration);
     wined3d_mutex_unlock();
     HeapFree(GetProcessHeap(), 0, wined3d_elements);
     if (FAILED(hr))
@@ -425,9 +424,8 @@ HRESULT vertexdeclaration_init_fvf(IDirect3DVertexDeclaration8Impl *declaration,
     declaration->elements_size = 0;
     declaration->shader_handle = fvf;
 
-    hr = IWineD3DDevice_CreateVertexDeclarationFromFVF(device->WineD3DDevice,
-            &declaration->wined3d_vertex_declaration, (IUnknown *)declaration,
-            &d3d8_vertexdeclaration_wined3d_parent_ops, fvf);
+    hr = IWineD3DDevice_CreateVertexDeclarationFromFVF(device->WineD3DDevice, fvf, declaration,
+            &d3d8_vertexdeclaration_wined3d_parent_ops, &declaration->wined3d_vertex_declaration);
     if (FAILED(hr))
     {
         WARN("Failed to create wined3d vertex declaration, hr %#x.\n", hr);
diff --git a/dlls/d3d8/vertexshader.c b/dlls/d3d8/vertexshader.c
index 1f00aa0..06142b4 100644
--- a/dlls/d3d8/vertexshader.c
+++ b/dlls/d3d8/vertexshader.c
@@ -169,9 +169,8 @@ HRESULT vertexshader_init(IDirect3DVertexShader8Impl *shader, IDirect3DDevice8Im
         if (usage) FIXME("Usage %#x not implemented.\n", usage);
 
         wined3d_mutex_lock();
-        hr = IWineD3DDevice_CreateVertexShader(device->WineD3DDevice, byte_code,
-                NULL /* output signature */, &shader->wineD3DVertexShader,
-                (IUnknown *)shader, &d3d8_vertexshader_wined3d_parent_ops);
+        hr = IWineD3DDevice_CreateVertexShader(device->WineD3DDevice, byte_code, NULL /* output signature */,
+                shader, &d3d8_vertexshader_wined3d_parent_ops, &shader->wineD3DVertexShader);
         wined3d_mutex_unlock();
         if (FAILED(hr))
         {
diff --git a/dlls/d3d8/volume.c b/dlls/d3d8/volume.c
index b7413bb..c2b7417 100644
--- a/dlls/d3d8/volume.c
+++ b/dlls/d3d8/volume.c
@@ -264,7 +264,7 @@ HRESULT volume_init(IDirect3DVolume8Impl *volume, IDirect3DDevice8Impl *device,
     volume->ref = 1;
 
     hr = IWineD3DDevice_CreateVolume(device->WineD3DDevice, width, height, depth, usage,
-            format, pool, &volume->wineD3DVolume, (IUnknown *)volume, &d3d8_volume_wined3d_parent_ops);
+            format, pool, volume, &d3d8_volume_wined3d_parent_ops, &volume->wineD3DVolume);
     if (FAILED(hr))
     {
         WARN("Failed to create wined3d volume, hr %#x.\n", hr);
diff --git a/dlls/d3d8/volumetexture.c b/dlls/d3d8/volumetexture.c
index bc5c5b8..bd72d68 100644
--- a/dlls/d3d8/volumetexture.c
+++ b/dlls/d3d8/volumetexture.c
@@ -251,22 +251,26 @@ static HRESULT WINAPI IDirect3DVolumeTexture8Impl_GetLevelDesc(LPDIRECT3DVOLUMET
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DVolumeTexture8Impl_GetVolumeLevel(LPDIRECT3DVOLUMETEXTURE8 iface, UINT Level, IDirect3DVolume8 **ppVolumeLevel) {
+static HRESULT WINAPI IDirect3DVolumeTexture8Impl_GetVolumeLevel(IDirect3DVolumeTexture8 *iface,
+        UINT Level, IDirect3DVolume8 **ppVolumeLevel)
+{
     IDirect3DVolumeTexture8Impl *This = (IDirect3DVolumeTexture8Impl *)iface;
-    HRESULT hrc = D3D_OK;
     IWineD3DVolume *myVolume = NULL;
+    HRESULT hr;
 
     TRACE("iface %p, level %u, volume %p.\n", iface, Level, ppVolumeLevel);
 
     wined3d_mutex_lock();
-    hrc = IWineD3DVolumeTexture_GetVolumeLevel(This->wineD3DVolumeTexture, Level, &myVolume);
-    if (hrc == D3D_OK && NULL != ppVolumeLevel) {
-       IWineD3DVolumeTexture_GetParent(myVolume, (IUnknown **)ppVolumeLevel);
-       IWineD3DVolumeTexture_Release(myVolume);
+    hr = IWineD3DVolumeTexture_GetVolumeLevel(This->wineD3DVolumeTexture, Level, &myVolume);
+    if (SUCCEEDED(hr) && ppVolumeLevel)
+    {
+        *ppVolumeLevel = IWineD3DVolumeTexture_GetParent(myVolume);
+        IDirect3DVolume8_AddRef(*ppVolumeLevel);
+        IWineD3DVolumeTexture_Release(myVolume);
     }
     wined3d_mutex_unlock();
 
-    return hrc;
+    return hr;
 }
 
 static HRESULT WINAPI IDirect3DVolumeTexture8Impl_LockBox(LPDIRECT3DVOLUMETEXTURE8 iface, UINT Level, D3DLOCKED_BOX *pLockedVolume, CONST D3DBOX *pBox, DWORD Flags) {
@@ -356,8 +360,8 @@ HRESULT volumetexture_init(IDirect3DVolumeTexture8Impl *texture, IDirect3DDevice
 
     wined3d_mutex_lock();
     hr = IWineD3DDevice_CreateVolumeTexture(device->WineD3DDevice, width, height, depth, levels,
-            usage & WINED3DUSAGE_MASK, wined3dformat_from_d3dformat(format), pool,
-            &texture->wineD3DVolumeTexture, (IUnknown *)texture, &d3d8_volumetexture_wined3d_parent_ops);
+            usage & WINED3DUSAGE_MASK, wined3dformat_from_d3dformat(format), pool, texture,
+            &d3d8_volumetexture_wined3d_parent_ops, &texture->wineD3DVolumeTexture);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/d3d9/cubetexture.c b/dlls/d3d9/cubetexture.c
index c0d0e3c..508784f 100644
--- a/dlls/d3d9/cubetexture.c
+++ b/dlls/d3d9/cubetexture.c
@@ -292,22 +292,27 @@ static HRESULT WINAPI IDirect3DCubeTexture9Impl_GetLevelDesc(LPDIRECT3DCUBETEXTU
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DCubeTexture9Impl_GetCubeMapSurface(LPDIRECT3DCUBETEXTURE9 iface, D3DCUBEMAP_FACES FaceType, UINT Level, IDirect3DSurface9** ppCubeMapSurface) {
+static HRESULT WINAPI IDirect3DCubeTexture9Impl_GetCubeMapSurface(IDirect3DCubeTexture9 *iface,
+        D3DCUBEMAP_FACES FaceType, UINT Level, IDirect3DSurface9 **ppCubeMapSurface)
+{
     IDirect3DCubeTexture9Impl *This = (IDirect3DCubeTexture9Impl *)iface;
-    HRESULT hrc = D3D_OK;
     IWineD3DSurface *mySurface = NULL;
+    HRESULT hr;
 
     TRACE("iface %p, face %#x, level %u, surface %p.\n", iface, FaceType, Level, ppCubeMapSurface);
 
     wined3d_mutex_lock();
-    hrc = IWineD3DCubeTexture_GetCubeMapSurface(This->wineD3DCubeTexture, (WINED3DCUBEMAP_FACES) FaceType, Level, &mySurface);
-    if (hrc == D3D_OK && NULL != ppCubeMapSurface) {
-       IWineD3DCubeTexture_GetParent(mySurface, (IUnknown **)ppCubeMapSurface);
-       IWineD3DCubeTexture_Release(mySurface);
+    hr = IWineD3DCubeTexture_GetCubeMapSurface(This->wineD3DCubeTexture,
+            (WINED3DCUBEMAP_FACES)FaceType, Level, &mySurface);
+    if (SUCCEEDED(hr) && ppCubeMapSurface)
+    {
+        *ppCubeMapSurface = IWineD3DCubeTexture_GetParent(mySurface);
+        IDirect3DSurface9_AddRef(*ppCubeMapSurface);
+        IWineD3DCubeTexture_Release(mySurface);
     }
     wined3d_mutex_unlock();
 
-    return hrc;
+    return hr;
 }
 
 static HRESULT WINAPI IDirect3DCubeTexture9Impl_LockRect(LPDIRECT3DCUBETEXTURE9 iface, D3DCUBEMAP_FACES FaceType, UINT Level, D3DLOCKED_RECT* pLockedRect, CONST RECT* pRect, DWORD Flags) {
@@ -399,9 +404,9 @@ HRESULT cubetexture_init(IDirect3DCubeTexture9Impl *texture, IDirect3DDevice9Imp
     texture->ref = 1;
 
     wined3d_mutex_lock();
-    hr = IWineD3DDevice_CreateCubeTexture(device->WineD3DDevice, edge_length, levels, usage,
-            wined3dformat_from_d3dformat(format), pool, &texture->wineD3DCubeTexture,
-            (IUnknown *)texture, &d3d9_cubetexture_wined3d_parent_ops);
+    hr = IWineD3DDevice_CreateCubeTexture(device->WineD3DDevice, edge_length,
+            levels, usage, wined3dformat_from_d3dformat(format), pool, texture,
+            &d3d9_cubetexture_wined3d_parent_ops, &texture->wineD3DCubeTexture);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/d3d9/device.c b/dlls/d3d9/device.c
index 87cc65c..0162439 100644
--- a/dlls/d3d9/device.c
+++ b/dlls/d3d9/device.c
@@ -187,8 +187,9 @@ static ULONG WINAPI D3D9CB_DestroySwapChain(IWineD3DSwapChain *swapchain)
 
     TRACE("swapchain %p.\n", swapchain);
 
-    IWineD3DSwapChain_GetParent(swapchain, (IUnknown **)&parent);
+    parent = IWineD3DSwapChain_GetParent(swapchain);
     parent->isImplicit = FALSE;
+    IDirect3DSwapChain9_AddRef((IDirect3DSwapChain9 *)parent);
     return IDirect3DSwapChain9_Release((IDirect3DSwapChain9 *)parent);
 }
 
@@ -337,7 +338,8 @@ static HRESULT WINAPI IDirect3DDevice9Impl_GetDirect3D(LPDIRECT3DDEVICE9EX iface
     hr = IWineD3DDevice_GetDirect3D(This->WineD3DDevice, &pWineD3D);
     if (hr == D3D_OK && pWineD3D != NULL)
     {
-        IWineD3D_GetParent(pWineD3D,(IUnknown **)ppD3D9);
+        *ppD3D9 = IWineD3D_GetParent(pWineD3D);
+        IDirect3D9_AddRef(*ppD3D9);
         IWineD3D_Release(pWineD3D);
     } else {
         FIXME("Call to IWineD3DDevice_GetDirect3D failed\n");
@@ -495,7 +497,7 @@ static HRESULT WINAPI reset_enum_callback(IWineD3DResource *resource, void *data
     WINED3DPOOL pool;
     IDirect3DResource9 *parent;
 
-    IWineD3DResource_GetParent(resource, (IUnknown **) &parent);
+    parent = IWineD3DResource_GetParent(resource);
     type = IDirect3DResource9_GetType(parent);
     switch(type) {
         case D3DRTYPE_SURFACE:
@@ -526,16 +528,17 @@ static HRESULT WINAPI reset_enum_callback(IWineD3DResource *resource, void *data
             break;
     }
 
-    if(pool == WINED3DPOOL_DEFAULT) {
-        if(IUnknown_Release(parent) == 0) {
+    if (pool == WINED3DPOOL_DEFAULT)
+    {
+        IDirect3DResource9_AddRef(parent);
+        if (IUnknown_Release(parent) == 0)
+        {
             TRACE("Parent %p is an implicit resource with ref 0\n", parent);
         } else {
             WARN("Resource %p(wineD3D %p) with pool D3DPOOL_DEFAULT blocks the Reset call\n", parent, resource);
             ret = S_FALSE;
             *resources_ok = FALSE;
         }
-    } else {
-        IUnknown_Release(parent);
     }
     IWineD3DResource_Release(resource);
 
@@ -635,23 +638,28 @@ static HRESULT  WINAPI DECLSPEC_HOTPATCH IDirect3DDevice9Impl_Present(LPDIRECT3D
     return hr;
  }
 
-static HRESULT  WINAPI  IDirect3DDevice9Impl_GetBackBuffer(LPDIRECT3DDEVICE9EX iface, UINT iSwapChain, UINT BackBuffer, D3DBACKBUFFER_TYPE Type, IDirect3DSurface9 ** ppBackBuffer) {
+static HRESULT WINAPI IDirect3DDevice9Impl_GetBackBuffer(IDirect3DDevice9Ex *iface,
+        UINT iSwapChain, UINT BackBuffer, D3DBACKBUFFER_TYPE Type, IDirect3DSurface9 **ppBackBuffer)
+{
     IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
     IWineD3DSurface *retSurface = NULL;
-    HRESULT rc = D3D_OK;
+    HRESULT hr;
 
     TRACE("iface %p, swapchain %u, backbuffer_idx %u, backbuffer_type %#x, backbuffer %p.\n",
             iface, iSwapChain, BackBuffer, Type, ppBackBuffer);
 
     wined3d_mutex_lock();
-    rc = IWineD3DDevice_GetBackBuffer(This->WineD3DDevice, iSwapChain, BackBuffer, (WINED3DBACKBUFFER_TYPE) Type, &retSurface);
-    if (rc == D3D_OK && NULL != retSurface && NULL != ppBackBuffer) {
-        IWineD3DSurface_GetParent(retSurface, (IUnknown **)ppBackBuffer);
+    hr = IWineD3DDevice_GetBackBuffer(This->WineD3DDevice, iSwapChain,
+            BackBuffer, (WINED3DBACKBUFFER_TYPE) Type, &retSurface);
+    if (SUCCEEDED(hr) && retSurface && ppBackBuffer)
+    {
+        *ppBackBuffer = IWineD3DSurface_GetParent(retSurface);
+        IDirect3DSurface9_AddRef(*ppBackBuffer);
         IWineD3DSurface_Release(retSurface);
     }
     wined3d_mutex_unlock();
 
-    return rc;
+    return hr;
 }
 static HRESULT  WINAPI  IDirect3DDevice9Impl_GetRasterStatus(LPDIRECT3DDEVICE9EX iface, UINT iSwapChain, D3DRASTER_STATUS* pRasterStatus) {
     IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
@@ -1096,7 +1104,9 @@ static HRESULT  WINAPI  IDirect3DDevice9Impl_SetRenderTarget(LPDIRECT3DDEVICE9EX
     return hr;
 }
 
-static HRESULT  WINAPI  IDirect3DDevice9Impl_GetRenderTarget(LPDIRECT3DDEVICE9EX iface, DWORD RenderTargetIndex, IDirect3DSurface9 **ppRenderTarget) {
+static HRESULT WINAPI IDirect3DDevice9Impl_GetRenderTarget(IDirect3DDevice9Ex *iface,
+        DWORD RenderTargetIndex, IDirect3DSurface9 **ppRenderTarget)
+{
     IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
     IWineD3DSurface *pRenderTarget;
     HRESULT hr;
@@ -1127,7 +1137,8 @@ static HRESULT  WINAPI  IDirect3DDevice9Impl_GetRenderTarget(LPDIRECT3DDEVICE9EX
     }
     else
     {
-        IWineD3DSurface_GetParent(pRenderTarget, (IUnknown **)ppRenderTarget);
+        *ppRenderTarget = IWineD3DSurface_GetParent(pRenderTarget);
+        IDirect3DSurface9_AddRef(*ppRenderTarget);
         IWineD3DSurface_Release(pRenderTarget);
     }
 
@@ -1152,10 +1163,12 @@ static HRESULT  WINAPI  IDirect3DDevice9Impl_SetDepthStencilSurface(LPDIRECT3DDE
     return hr;
 }
 
-static HRESULT  WINAPI  IDirect3DDevice9Impl_GetDepthStencilSurface(LPDIRECT3DDEVICE9EX iface, IDirect3DSurface9 **ppZStencilSurface) {
+static HRESULT WINAPI IDirect3DDevice9Impl_GetDepthStencilSurface(IDirect3DDevice9Ex *iface,
+        IDirect3DSurface9 **ppZStencilSurface)
+{
     IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
-    HRESULT hr = D3D_OK;
     IWineD3DSurface *pZStencilSurface;
+    HRESULT hr;
 
     TRACE("iface %p, depth_stencil %p.\n", iface, ppZStencilSurface);
 
@@ -1165,10 +1178,14 @@ static HRESULT  WINAPI  IDirect3DDevice9Impl_GetDepthStencilSurface(LPDIRECT3DDE
 
     wined3d_mutex_lock();
     hr = IWineD3DDevice_GetDepthStencilSurface(This->WineD3DDevice,&pZStencilSurface);
-    if (hr == WINED3D_OK) {
-        IWineD3DSurface_GetParent(pZStencilSurface,(IUnknown**)ppZStencilSurface);
+    if (SUCCEEDED(hr))
+    {
+        *ppZStencilSurface = IWineD3DSurface_GetParent(pZStencilSurface);
+        IDirect3DSurface9_AddRef(*ppZStencilSurface);
         IWineD3DSurface_Release(pZStencilSurface);
-    } else {
+    }
+    else
+    {
         if (hr != WINED3DERR_NOTFOUND)
                 WARN("Call to IWineD3DDevice_GetDepthStencilSurface failed with 0x%08x\n", hr);
         *ppZStencilSurface = NULL;
@@ -1540,10 +1557,12 @@ static HRESULT  WINAPI  IDirect3DDevice9Impl_GetClipStatus(LPDIRECT3DDEVICE9EX i
     return hr;
 }
 
-static HRESULT  WINAPI  IDirect3DDevice9Impl_GetTexture(LPDIRECT3DDEVICE9EX iface, DWORD Stage, IDirect3DBaseTexture9 **ppTexture) {
+static HRESULT WINAPI IDirect3DDevice9Impl_GetTexture(IDirect3DDevice9Ex *iface,
+        DWORD Stage, IDirect3DBaseTexture9 **ppTexture)
+{
     IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
     IWineD3DBaseTexture *retTexture = NULL;
-    HRESULT rc = D3D_OK;
+    HRESULT hr;
 
     TRACE("iface %p, stage %u, texture %p.\n", iface, Stage, ppTexture);
 
@@ -1552,19 +1571,24 @@ static HRESULT  WINAPI  IDirect3DDevice9Impl_GetTexture(LPDIRECT3DDEVICE9EX ifac
     }
 
     wined3d_mutex_lock();
-    rc = IWineD3DDevice_GetTexture(This->WineD3DDevice, Stage, &retTexture);
-    if (SUCCEEDED(rc) && NULL != retTexture) {
-        IWineD3DBaseTexture_GetParent(retTexture, (IUnknown **)ppTexture);
+    hr = IWineD3DDevice_GetTexture(This->WineD3DDevice, Stage, &retTexture);
+    if (SUCCEEDED(hr) && retTexture)
+    {
+        *ppTexture = IWineD3DBaseTexture_GetParent(retTexture);
+        IWineD3DBaseTexture_AddRef(*ppTexture);
         IWineD3DBaseTexture_Release(retTexture);
-    } else {
-        if(FAILED(rc)) {
+    }
+    else
+    {
+        if (FAILED(hr))
+        {
             WARN("Call to get texture  (%d) failed (%p)\n", Stage, retTexture);
         }
         *ppTexture = NULL;
     }
     wined3d_mutex_unlock();
 
-    return rc;
+    return hr;
 }
 
 static HRESULT  WINAPI  IDirect3DDevice9Impl_SetTexture(LPDIRECT3DDEVICE9EX iface, DWORD Stage, IDirect3DBaseTexture9* pTexture) {
@@ -2110,10 +2134,12 @@ static HRESULT WINAPI IDirect3DDevice9Impl_SetStreamSource(LPDIRECT3DDEVICE9EX i
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DDevice9Impl_GetStreamSource(LPDIRECT3DDEVICE9EX iface, UINT StreamNumber, IDirect3DVertexBuffer9 **pStream, UINT* OffsetInBytes, UINT* pStride) {
+static HRESULT WINAPI IDirect3DDevice9Impl_GetStreamSource(IDirect3DDevice9Ex *iface,
+        UINT StreamNumber, IDirect3DVertexBuffer9 **pStream, UINT* OffsetInBytes, UINT* pStride)
+{
     IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
     IWineD3DBuffer *retStream = NULL;
-    HRESULT rc = D3D_OK;
+    HRESULT hr;
 
     TRACE("iface %p, stream_idx %u, buffer %p, offset %p, stride %p.\n",
             iface, StreamNumber, pStream, OffsetInBytes, pStride);
@@ -2123,19 +2149,24 @@ static HRESULT WINAPI IDirect3DDevice9Impl_GetStreamSource(LPDIRECT3DDEVICE9EX i
     }
 
     wined3d_mutex_lock();
-    rc = IWineD3DDevice_GetStreamSource(This->WineD3DDevice, StreamNumber, &retStream, OffsetInBytes, pStride);
-    if (rc == D3D_OK  && NULL != retStream) {
-        IWineD3DBuffer_GetParent(retStream, (IUnknown **)pStream);
+    hr = IWineD3DDevice_GetStreamSource(This->WineD3DDevice, StreamNumber, &retStream, OffsetInBytes, pStride);
+    if (SUCCEEDED(hr) && retStream)
+    {
+        *pStream = IWineD3DBuffer_GetParent(retStream);
+        IDirect3DVertexBuffer9_AddRef(*pStream);
         IWineD3DBuffer_Release(retStream);
-    }else{
-        if (rc != D3D_OK){
+    }
+    else
+    {
+        if (FAILED(hr))
+        {
             FIXME("Call to GetStreamSource failed %p %p\n", OffsetInBytes, pStride);
         }
         *pStream = NULL;
     }
     wined3d_mutex_unlock();
 
-    return rc;
+    return hr;
 }
 
 static HRESULT WINAPI IDirect3DDevice9Impl_SetStreamSourceFreq(IDirect3DDevice9Ex *iface, UINT StreamNumber,
@@ -2182,10 +2213,11 @@ static HRESULT  WINAPI  IDirect3DDevice9Impl_SetIndices(LPDIRECT3DDEVICE9EX ifac
     return hr;
 }
 
-static HRESULT  WINAPI  IDirect3DDevice9Impl_GetIndices(LPDIRECT3DDEVICE9EX iface, IDirect3DIndexBuffer9 **ppIndexData) {
+static HRESULT WINAPI IDirect3DDevice9Impl_GetIndices(IDirect3DDevice9Ex *iface, IDirect3DIndexBuffer9 **ppIndexData)
+{
     IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
     IWineD3DBuffer *retIndexData = NULL;
-    HRESULT rc = D3D_OK;
+    HRESULT hr;
 
     TRACE("iface %p, buffer %p.\n", iface, ppIndexData);
 
@@ -2194,17 +2226,21 @@ static HRESULT  WINAPI  IDirect3DDevice9Impl_GetIndices(LPDIRECT3DDEVICE9EX ifac
     }
 
     wined3d_mutex_lock();
-    rc = IWineD3DDevice_GetIndexBuffer(This->WineD3DDevice, &retIndexData);
-    if (SUCCEEDED(rc) && retIndexData) {
-        IWineD3DBuffer_GetParent(retIndexData, (IUnknown **)ppIndexData);
+    hr = IWineD3DDevice_GetIndexBuffer(This->WineD3DDevice, &retIndexData);
+    if (SUCCEEDED(hr) && retIndexData)
+    {
+        *ppIndexData = IWineD3DBuffer_GetParent(retIndexData);
+        IDirect3DIndexBuffer9_AddRef(*ppIndexData);
         IWineD3DBuffer_Release(retIndexData);
-    } else {
-        if (FAILED(rc)) FIXME("Call to GetIndices failed\n");
+    }
+    else
+    {
+        if (FAILED(hr)) FIXME("Call to GetIndices failed\n");
         *ppIndexData = NULL;
     }
     wined3d_mutex_unlock();
 
-    return rc;
+    return hr;
 }
 
 static HRESULT WINAPI IDirect3DDevice9Impl_CreatePixelShader(IDirect3DDevice9Ex *iface,
diff --git a/dlls/d3d9/indexbuffer.c b/dlls/d3d9/indexbuffer.c
index 1b7e8e4..001bb2a 100644
--- a/dlls/d3d9/indexbuffer.c
+++ b/dlls/d3d9/indexbuffer.c
@@ -270,9 +270,8 @@ HRESULT indexbuffer_init(IDirect3DIndexBuffer9Impl *buffer, IDirect3DDevice9Impl
     buffer->format = wined3dformat_from_d3dformat(format);
 
     wined3d_mutex_lock();
-    hr = IWineD3DDevice_CreateIndexBuffer(device->WineD3DDevice, size,
-            usage & WINED3DUSAGE_MASK, (WINED3DPOOL)pool, &buffer->wineD3DIndexBuffer,
-            (IUnknown *)buffer, &d3d9_indexbuffer_wined3d_parent_ops);
+    hr = IWineD3DDevice_CreateIndexBuffer(device->WineD3DDevice, size, usage & WINED3DUSAGE_MASK,
+            (WINED3DPOOL)pool, buffer, &d3d9_indexbuffer_wined3d_parent_ops, &buffer->wineD3DIndexBuffer);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/d3d9/pixelshader.c b/dlls/d3d9/pixelshader.c
index 7cb803a..840322b 100644
--- a/dlls/d3d9/pixelshader.c
+++ b/dlls/d3d9/pixelshader.c
@@ -136,9 +136,8 @@ HRESULT pixelshader_init(IDirect3DPixelShader9Impl *shader, IDirect3DDevice9Impl
     shader->lpVtbl = &Direct3DPixelShader9_Vtbl;
 
     wined3d_mutex_lock();
-    hr = IWineD3DDevice_CreatePixelShader(device->WineD3DDevice, byte_code,
-            NULL, &shader->wineD3DPixelShader, (IUnknown *)shader,
-            &d3d9_pixelshader_wined3d_parent_ops);
+    hr = IWineD3DDevice_CreatePixelShader(device->WineD3DDevice, byte_code, NULL, shader,
+            &d3d9_pixelshader_wined3d_parent_ops, &shader->wineD3DPixelShader);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
@@ -165,10 +164,11 @@ HRESULT WINAPI IDirect3DDevice9Impl_SetPixelShader(LPDIRECT3DDEVICE9EX iface, ID
     return D3D_OK;
 }
 
-HRESULT WINAPI IDirect3DDevice9Impl_GetPixelShader(LPDIRECT3DDEVICE9EX iface, IDirect3DPixelShader9** ppShader) {
+HRESULT WINAPI IDirect3DDevice9Impl_GetPixelShader(IDirect3DDevice9Ex *iface, IDirect3DPixelShader9 **ppShader)
+{
     IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
     IWineD3DPixelShader *object;
-    HRESULT hrc;
+    HRESULT hr;
 
     TRACE("iface %p, shader %p.\n", iface, ppShader);
 
@@ -178,12 +178,13 @@ HRESULT WINAPI IDirect3DDevice9Impl_GetPixelShader(LPDIRECT3DDEVICE9EX iface, ID
     }
 
     wined3d_mutex_lock();
-    hrc = IWineD3DDevice_GetPixelShader(This->WineD3DDevice, &object);
-    if (SUCCEEDED(hrc))
+    hr = IWineD3DDevice_GetPixelShader(This->WineD3DDevice, &object);
+    if (SUCCEEDED(hr))
     {
         if (object)
         {
-            hrc = IWineD3DPixelShader_GetParent(object, (IUnknown **)ppShader);
+            *ppShader = IWineD3DPixelShader_GetParent(object);
+            IDirect3DPixelShader9_AddRef(*ppShader);
             IWineD3DPixelShader_Release(object);
         }
         else
@@ -193,12 +194,12 @@ HRESULT WINAPI IDirect3DDevice9Impl_GetPixelShader(LPDIRECT3DDEVICE9EX iface, ID
     }
     else
     {
-        WARN("(%p) : Call to IWineD3DDevice_GetPixelShader failed %u (device %p)\n", This, hrc, This->WineD3DDevice);
+        WARN("Failed to get pixel shader, hr %#x.\n", hr);
     }
     wined3d_mutex_unlock();
 
-    TRACE("(%p) : returning %p\n", This, *ppShader);
-    return hrc;
+    TRACE("Returning %p.\n", *ppShader);
+    return hr;
 }
 
 HRESULT WINAPI IDirect3DDevice9Impl_SetPixelShaderConstantF(LPDIRECT3DDEVICE9EX iface, UINT Register, CONST float* pConstantData, UINT Vector4fCount) {
diff --git a/dlls/d3d9/surface.c b/dlls/d3d9/surface.c
index 210a0ee..c7dc895 100644
--- a/dlls/d3d9/surface.c
+++ b/dlls/d3d9/surface.c
@@ -403,9 +403,8 @@ HRESULT surface_init(IDirect3DSurface9Impl *surface, IDirect3DDevice9Impl *devic
 
     wined3d_mutex_lock();
     hr = IWineD3DDevice_CreateSurface(device->WineD3DDevice, width, height, wined3dformat_from_d3dformat(format),
-            lockable, discard, level, &surface->wineD3DSurface, usage & WINED3DUSAGE_MASK, (WINED3DPOOL)pool,
-            multisample_type, multisample_quality, SURFACE_OPENGL, (IUnknown *)surface,
-            &d3d9_surface_wined3d_parent_ops);
+            lockable, discard, level, usage & WINED3DUSAGE_MASK, (WINED3DPOOL)pool, multisample_type,
+            multisample_quality, SURFACE_OPENGL, surface, &d3d9_surface_wined3d_parent_ops, &surface->wineD3DSurface);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/d3d9/swapchain.c b/dlls/d3d9/swapchain.c
index c692371..18c7dcd 100644
--- a/dlls/d3d9/swapchain.c
+++ b/dlls/d3d9/swapchain.c
@@ -106,24 +106,29 @@ static HRESULT WINAPI IDirect3DSwapChain9Impl_GetFrontBufferData(LPDIRECT3DSWAPC
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DSwapChain9Impl_GetBackBuffer(LPDIRECT3DSWAPCHAIN9 iface, UINT iBackBuffer, D3DBACKBUFFER_TYPE Type, IDirect3DSurface9** ppBackBuffer) {
+static HRESULT WINAPI IDirect3DSwapChain9Impl_GetBackBuffer(IDirect3DSwapChain9 *iface,
+        UINT iBackBuffer, D3DBACKBUFFER_TYPE Type, IDirect3DSurface9 **ppBackBuffer)
+{
     IDirect3DSwapChain9Impl *This = (IDirect3DSwapChain9Impl *)iface;
-    HRESULT hrc = D3D_OK;
     IWineD3DSurface *mySurface = NULL;
+    HRESULT hr;
 
     TRACE("iface %p, backbuffer_idx %u, backbuffer_type %#x, backbuffer %p.\n",
             iface, iBackBuffer, Type, ppBackBuffer);
 
     wined3d_mutex_lock();
-    hrc = IWineD3DSwapChain_GetBackBuffer(This->wineD3DSwapChain, iBackBuffer, (WINED3DBACKBUFFER_TYPE) Type, &mySurface);
-    if (hrc == D3D_OK && NULL != mySurface) {
-       IWineD3DSurface_GetParent(mySurface, (IUnknown **)ppBackBuffer);
+    hr = IWineD3DSwapChain_GetBackBuffer(This->wineD3DSwapChain, iBackBuffer,
+            (WINED3DBACKBUFFER_TYPE)Type, &mySurface);
+    if (SUCCEEDED(hr) && mySurface)
+    {
+       *ppBackBuffer = IWineD3DSurface_GetParent(mySurface);
+       IDirect3DSurface9_AddRef(*ppBackBuffer);
        IWineD3DSurface_Release(mySurface);
     }
     wined3d_mutex_unlock();
 
     /* Do not touch the **ppBackBuffer pointer otherwise! (see device test) */
-    return hrc;
+    return hr;
 }
 
 static HRESULT WINAPI IDirect3DSwapChain9Impl_GetRasterStatus(LPDIRECT3DSWAPCHAIN9 iface, D3DRASTER_STATUS* pRasterStatus) {
@@ -239,7 +244,7 @@ HRESULT swapchain_init(IDirect3DSwapChain9Impl *swapchain, IDirect3DDevice9Impl
 
     wined3d_mutex_lock();
     hr = IWineD3DDevice_CreateSwapChain(device->WineD3DDevice, &wined3d_parameters,
-            &swapchain->wineD3DSwapChain, (IUnknown *)swapchain, SURFACE_OPENGL);
+            SURFACE_OPENGL, swapchain, &swapchain->wineD3DSwapChain);
     wined3d_mutex_unlock();
 
     present_parameters->BackBufferWidth = wined3d_parameters.BackBufferWidth;
@@ -269,25 +274,31 @@ HRESULT swapchain_init(IDirect3DSwapChain9Impl *swapchain, IDirect3DDevice9Impl
     return D3D_OK;
 }
 
-HRESULT  WINAPI DECLSPEC_HOTPATCH IDirect3DDevice9Impl_GetSwapChain(LPDIRECT3DDEVICE9EX iface, UINT iSwapChain, IDirect3DSwapChain9** pSwapChain) {
+HRESULT WINAPI DECLSPEC_HOTPATCH IDirect3DDevice9Impl_GetSwapChain(IDirect3DDevice9Ex *iface,
+        UINT iSwapChain, IDirect3DSwapChain9 **pSwapChain)
+{
     IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
-    HRESULT hrc = D3D_OK;
     IWineD3DSwapChain *swapchain = NULL;
+    HRESULT hr;
 
     TRACE("iface %p, swapchain_idx %u, swapchain %p.\n",
             iface, iSwapChain, pSwapChain);
 
     wined3d_mutex_lock();
-    hrc = IWineD3DDevice_GetSwapChain(This->WineD3DDevice, iSwapChain, &swapchain);
-    if (hrc == D3D_OK && NULL != swapchain) {
-       IWineD3DSwapChain_GetParent(swapchain, (IUnknown **)pSwapChain);
+    hr = IWineD3DDevice_GetSwapChain(This->WineD3DDevice, iSwapChain, &swapchain);
+    if (SUCCEEDED(hr) && swapchain)
+    {
+       *pSwapChain = IWineD3DSwapChain_GetParent(swapchain);
+       IDirect3DSwapChain9_AddRef(*pSwapChain);
        IWineD3DSwapChain_Release(swapchain);
-    } else {
+    }
+    else
+    {
         *pSwapChain = NULL;
     }
     wined3d_mutex_unlock();
 
-    return hrc;
+    return hr;
 }
 
 UINT     WINAPI  IDirect3DDevice9Impl_GetNumberOfSwapChains(LPDIRECT3DDEVICE9EX iface) {
diff --git a/dlls/d3d9/texture.c b/dlls/d3d9/texture.c
index 564057f..dbe9798 100644
--- a/dlls/d3d9/texture.c
+++ b/dlls/d3d9/texture.c
@@ -289,22 +289,26 @@ static HRESULT WINAPI IDirect3DTexture9Impl_GetLevelDesc(LPDIRECT3DTEXTURE9 ifac
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DTexture9Impl_GetSurfaceLevel(LPDIRECT3DTEXTURE9 iface, UINT Level, IDirect3DSurface9** ppSurfaceLevel) {
+static HRESULT WINAPI IDirect3DTexture9Impl_GetSurfaceLevel(IDirect3DTexture9 *iface,
+        UINT Level, IDirect3DSurface9 **ppSurfaceLevel)
+{
     IDirect3DTexture9Impl *This = (IDirect3DTexture9Impl *)iface;
-    HRESULT hrc = D3D_OK;
     IWineD3DSurface *mySurface = NULL;
+    HRESULT hr;
 
     TRACE("iface %p, level %u, surface %p.\n", iface, Level, ppSurfaceLevel);
 
     wined3d_mutex_lock();
-    hrc = IWineD3DTexture_GetSurfaceLevel(This->wineD3DTexture, Level, &mySurface);
-    if (hrc == D3D_OK && NULL != ppSurfaceLevel) {
-       IWineD3DSurface_GetParent(mySurface, (IUnknown **)ppSurfaceLevel);
-       IWineD3DSurface_Release(mySurface);
+    hr = IWineD3DTexture_GetSurfaceLevel(This->wineD3DTexture, Level, &mySurface);
+    if (SUCCEEDED(hr) && ppSurfaceLevel)
+    {
+        *ppSurfaceLevel = IWineD3DSurface_GetParent(mySurface);
+        IDirect3DSurface9_AddRef(*ppSurfaceLevel);
+        IWineD3DSurface_Release(mySurface);
     }
     wined3d_mutex_unlock();
 
-    return hrc;
+    return hr;
 }
 
 static HRESULT WINAPI IDirect3DTexture9Impl_LockRect(LPDIRECT3DTEXTURE9 iface, UINT Level, D3DLOCKED_RECT* pLockedRect, CONST RECT* pRect, DWORD Flags) {
@@ -398,7 +402,7 @@ HRESULT texture_init(IDirect3DTexture9Impl *texture, IDirect3DDevice9Impl *devic
     wined3d_mutex_lock();
     hr = IWineD3DDevice_CreateTexture(device->WineD3DDevice, width, height, levels,
             usage & WINED3DUSAGE_MASK, wined3dformat_from_d3dformat(format), pool,
-            &texture->wineD3DTexture, (IUnknown *)texture, &d3d9_texture_wined3d_parent_ops);
+            texture, &d3d9_texture_wined3d_parent_ops, &texture->wineD3DTexture);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/d3d9/vertexbuffer.c b/dlls/d3d9/vertexbuffer.c
index 1841bec..f06d5a2 100644
--- a/dlls/d3d9/vertexbuffer.c
+++ b/dlls/d3d9/vertexbuffer.c
@@ -272,9 +272,8 @@ HRESULT vertexbuffer_init(IDirect3DVertexBuffer9Impl *buffer, IDirect3DDevice9Im
     buffer->fvf = fvf;
 
     wined3d_mutex_lock();
-    hr = IWineD3DDevice_CreateVertexBuffer(device->WineD3DDevice, size,
-            usage & WINED3DUSAGE_MASK, (WINED3DPOOL)pool, &buffer->wineD3DVertexBuffer,
-            (IUnknown *)buffer, &d3d9_vertexbuffer_wined3d_parent_ops);
+    hr = IWineD3DDevice_CreateVertexBuffer(device->WineD3DDevice, size, usage & WINED3DUSAGE_MASK,
+            (WINED3DPOOL)pool, buffer, &d3d9_vertexbuffer_wined3d_parent_ops, &buffer->wineD3DVertexBuffer);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/d3d9/vertexdeclaration.c b/dlls/d3d9/vertexdeclaration.c
index 5bdf0ec..3e91389 100644
--- a/dlls/d3d9/vertexdeclaration.c
+++ b/dlls/d3d9/vertexdeclaration.c
@@ -395,9 +395,8 @@ HRESULT vertexdeclaration_init(IDirect3DVertexDeclaration9Impl *declaration,
     declaration->element_count = element_count;
 
     wined3d_mutex_lock();
-    hr = IWineD3DDevice_CreateVertexDeclaration(device->WineD3DDevice, &declaration->wineD3DVertexDeclaration,
-            (IUnknown *)declaration, &d3d9_vertexdeclaration_wined3d_parent_ops,
-            wined3d_elements, wined3d_element_count);
+    hr = IWineD3DDevice_CreateVertexDeclaration(device->WineD3DDevice, wined3d_elements, wined3d_element_count,
+            declaration, &d3d9_vertexdeclaration_wined3d_parent_ops, &declaration->wineD3DVertexDeclaration);
     wined3d_mutex_unlock();
     HeapFree(GetProcessHeap(), 0, wined3d_elements);
     if (FAILED(hr))
@@ -427,29 +426,31 @@ HRESULT  WINAPI  IDirect3DDevice9Impl_SetVertexDeclaration(LPDIRECT3DDEVICE9EX i
     return hr;
 }
 
-HRESULT  WINAPI  IDirect3DDevice9Impl_GetVertexDeclaration(LPDIRECT3DDEVICE9EX iface, IDirect3DVertexDeclaration9** ppDecl) {
-    IDirect3DDevice9Impl* This = (IDirect3DDevice9Impl*) iface;
-    IWineD3DVertexDeclaration* pTest = NULL;
-    HRESULT hr = D3D_OK;
+HRESULT WINAPI IDirect3DDevice9Impl_GetVertexDeclaration(IDirect3DDevice9Ex *iface,
+        IDirect3DVertexDeclaration9 **declaration)
+{
+    IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
+    IWineD3DVertexDeclaration *wined3d_declaration = NULL;
+    HRESULT hr;
 
-    TRACE("iface %p, declaration %p.\n", iface, ppDecl);
+    TRACE("iface %p, declaration %p.\n", iface, declaration);
 
-    if (NULL == ppDecl) {
-      return D3DERR_INVALIDCALL;
-    }
-
-    *ppDecl = NULL;
+    if (!declaration) return D3DERR_INVALIDCALL;
 
     wined3d_mutex_lock();
-    hr = IWineD3DDevice_GetVertexDeclaration(This->WineD3DDevice, &pTest);
-    if (hr == D3D_OK && NULL != pTest) {
-        IWineD3DVertexDeclaration_GetParent(pTest, (IUnknown **)ppDecl);
-        IWineD3DVertexDeclaration_Release(pTest);
-    } else {
-        *ppDecl = NULL;
+    hr = IWineD3DDevice_GetVertexDeclaration(This->WineD3DDevice, &wined3d_declaration);
+    if (SUCCEEDED(hr) && wined3d_declaration)
+    {
+        *declaration = IWineD3DVertexDeclaration_GetParent(wined3d_declaration);
+        IDirect3DVertexDeclaration9_AddRef(*declaration);
+        IWineD3DVertexDeclaration_Release(wined3d_declaration);
+    }
+    else
+    {
+        *declaration = NULL;
     }
     wined3d_mutex_unlock();
 
-    TRACE("(%p) : returning %p\n", This, *ppDecl);
+    TRACE("Returning %p.\n", *declaration);
     return hr;
 }
diff --git a/dlls/d3d9/vertexshader.c b/dlls/d3d9/vertexshader.c
index 21a4e87..9faef72 100644
--- a/dlls/d3d9/vertexshader.c
+++ b/dlls/d3d9/vertexshader.c
@@ -136,9 +136,8 @@ HRESULT vertexshader_init(IDirect3DVertexShader9Impl *shader, IDirect3DDevice9Im
     shader->lpVtbl = &Direct3DVertexShader9_Vtbl;
 
     wined3d_mutex_lock();
-    hr = IWineD3DDevice_CreateVertexShader(device->WineD3DDevice, byte_code,
-            NULL /* output signature */, &shader->wineD3DVertexShader,
-            (IUnknown *)shader, &d3d9_vertexshader_wined3d_parent_ops);
+    hr = IWineD3DDevice_CreateVertexShader(device->WineD3DDevice, byte_code, NULL,
+            shader, &d3d9_vertexshader_wined3d_parent_ops, &shader->wineD3DVertexShader);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
@@ -166,20 +165,22 @@ HRESULT WINAPI IDirect3DDevice9Impl_SetVertexShader(LPDIRECT3DDEVICE9EX iface, I
     return hrc;
 }
 
-HRESULT WINAPI IDirect3DDevice9Impl_GetVertexShader(LPDIRECT3DDEVICE9EX iface, IDirect3DVertexShader9** ppShader) {
+HRESULT WINAPI IDirect3DDevice9Impl_GetVertexShader(LPDIRECT3DDEVICE9EX iface, IDirect3DVertexShader9 **ppShader)
+{
     IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
     IWineD3DVertexShader *pShader;
-    HRESULT hrc = D3D_OK;
+    HRESULT hr;
 
     TRACE("iface %p, shader %p.\n", iface, ppShader);
 
     wined3d_mutex_lock();
-    hrc = IWineD3DDevice_GetVertexShader(This->WineD3DDevice, &pShader);
-    if (SUCCEEDED(hrc))
+    hr = IWineD3DDevice_GetVertexShader(This->WineD3DDevice, &pShader);
+    if (SUCCEEDED(hr))
     {
         if (pShader)
         {
-            hrc = IWineD3DVertexShader_GetParent(pShader, (IUnknown **)ppShader);
+            *ppShader = IWineD3DVertexShader_GetParent(pShader);
+            IDirect3DVertexShader9_AddRef(*ppShader);
             IWineD3DVertexShader_Release(pShader);
         }
         else
@@ -189,12 +190,13 @@ HRESULT WINAPI IDirect3DDevice9Impl_GetVertexShader(LPDIRECT3DDEVICE9EX iface, I
     }
     else
     {
-        WARN("(%p) : Call to IWineD3DDevice_GetVertexShader failed %u (device %p)\n", This, hrc, This->WineD3DDevice);
+        WARN("Failed to get vertex shader, hr %#x.\n", hr);
     }
     wined3d_mutex_unlock();
 
-    TRACE("(%p) : returning %p\n", This, *ppShader);
-    return hrc;
+    TRACE("Returning %p.\n", *ppShader);
+
+    return hr;
 }
 
 HRESULT WINAPI IDirect3DDevice9Impl_SetVertexShaderConstantF(LPDIRECT3DDEVICE9EX iface, UINT Register, CONST float* pConstantData, UINT Vector4fCount) {
diff --git a/dlls/d3d9/volume.c b/dlls/d3d9/volume.c
index ceb88bd..0d87b86 100644
--- a/dlls/d3d9/volume.c
+++ b/dlls/d3d9/volume.c
@@ -275,7 +275,7 @@ HRESULT volume_init(IDirect3DVolume9Impl *volume, IDirect3DDevice9Impl *device,
     volume->ref = 1;
 
     hr = IWineD3DDevice_CreateVolume(device->WineD3DDevice, width, height, depth, usage & WINED3DUSAGE_MASK,
-            format, pool, &volume->wineD3DVolume, (IUnknown *)volume, &d3d9_volume_wined3d_parent_ops);
+            format, pool, volume, &d3d9_volume_wined3d_parent_ops, &volume->wineD3DVolume);
     if (FAILED(hr))
     {
         WARN("Failed to create wined3d volume, hr %#x.\n", hr);
diff --git a/dlls/d3d9/volumetexture.c b/dlls/d3d9/volumetexture.c
index ca9ca9c..7ce4623 100644
--- a/dlls/d3d9/volumetexture.c
+++ b/dlls/d3d9/volumetexture.c
@@ -315,24 +315,28 @@ static HRESULT WINAPI IDirect3DVolumeTexture9Impl_GetLevelDesc(LPDIRECT3DVOLUMET
     return hr;
 }
 
-static HRESULT WINAPI IDirect3DVolumeTexture9Impl_GetVolumeLevel(LPDIRECT3DVOLUMETEXTURE9 iface, UINT Level, IDirect3DVolume9** ppVolumeLevel) {
+static HRESULT WINAPI IDirect3DVolumeTexture9Impl_GetVolumeLevel(IDirect3DVolumeTexture9 *iface,
+        UINT Level, IDirect3DVolume9 **ppVolumeLevel)
+{
     IDirect3DVolumeTexture9Impl *This = (IDirect3DVolumeTexture9Impl *)iface;
-    HRESULT hrc = D3D_OK;
     IWineD3DVolume *myVolume = NULL;
+    HRESULT hr;
 
     TRACE("iface %p, level %u, volume %p.\n", iface, Level, ppVolumeLevel);
 
     wined3d_mutex_lock();
 
-    hrc = IWineD3DVolumeTexture_GetVolumeLevel(This->wineD3DVolumeTexture, Level, &myVolume);
-    if (hrc == D3D_OK && NULL != ppVolumeLevel) {
-       IWineD3DVolumeTexture_GetParent(myVolume, (IUnknown **)ppVolumeLevel);
+    hr = IWineD3DVolumeTexture_GetVolumeLevel(This->wineD3DVolumeTexture, Level, &myVolume);
+    if (SUCCEEDED(hr) && ppVolumeLevel)
+    {
+       *ppVolumeLevel = IWineD3DVolumeTexture_GetParent(myVolume);
+       IDirect3DVolumeTexture9_AddRef(*ppVolumeLevel);
        IWineD3DVolumeTexture_Release(myVolume);
     }
 
     wined3d_mutex_unlock();
 
-    return hrc;
+    return hr;
 }
 
 static HRESULT WINAPI IDirect3DVolumeTexture9Impl_LockBox(LPDIRECT3DVOLUMETEXTURE9 iface, UINT Level, D3DLOCKED_BOX* pLockedVolume, CONST D3DBOX* pBox, DWORD Flags) {
@@ -433,8 +437,8 @@ HRESULT volumetexture_init(IDirect3DVolumeTexture9Impl *texture, IDirect3DDevice
 
     wined3d_mutex_lock();
     hr = IWineD3DDevice_CreateVolumeTexture(device->WineD3DDevice, width, height, depth, levels,
-            usage & WINED3DUSAGE_MASK, wined3dformat_from_d3dformat(format), pool,
-            &texture->wineD3DVolumeTexture, (IUnknown *)texture, &d3d9_volumetexture_wined3d_parent_ops);
+            usage & WINED3DUSAGE_MASK, wined3dformat_from_d3dformat(format), pool, texture,
+            &d3d9_volumetexture_wined3d_parent_ops, &texture->wineD3DVolumeTexture);
     wined3d_mutex_unlock();
     if (FAILED(hr))
     {
diff --git a/dlls/ddraw/ddraw.c b/dlls/ddraw/ddraw.c
index 451298c..865d5d0 100644
--- a/dlls/ddraw/ddraw.c
+++ b/dlls/ddraw/ddraw.c
@@ -1836,13 +1836,9 @@ static HRESULT WINAPI ddraw7_GetGDISurface(IDirectDraw7 *iface, IDirectDrawSurfa
         return DDERR_NOTFOUND;
     }
 
-    /* GetBackBuffer AddRef()ed the surface, release it */
+    ddsurf = IWineD3DSurface_GetParent(Surf);
     IWineD3DSurface_Release(Surf);
 
-    IWineD3DSurface_GetParent(Surf,
-                              (IUnknown **) &ddsurf);
-    IDirectDrawSurface7_Release(ddsurf);  /* For the GetParent */
-
     /* Find the front buffer */
     ddsCaps.dwCaps = DDSCAPS_FRONTBUFFER;
     hr = IDirectDrawSurface7_GetAttachedSurface(ddsurf,
@@ -2249,7 +2245,8 @@ static HRESULT WINAPI ddraw7_GetSurfaceFromDC(IDirectDraw7 *iface, HDC hdc, IDir
         return DDERR_NOTFOUND;
     }
 
-    IWineD3DSurface_GetParent(wined3d_surface, (IUnknown **)Surface);
+    *Surface = IWineD3DSurface_GetParent(wined3d_surface);
+    IDirectDrawSurface7_AddRef(*Surface);
     TRACE("Returning surface %p.\n", Surface);
     return DD_OK;
 }
@@ -2359,9 +2356,9 @@ HRESULT WINAPI ddraw_recreate_surfaces_cb(IDirectDrawSurface7 *surf, DDSURFACEDE
 {
     IDirectDrawSurfaceImpl *surfImpl = (IDirectDrawSurfaceImpl *)surf;
     IDirectDrawImpl *This = surfImpl->ddraw;
-    IUnknown *Parent;
     IWineD3DSurface *wineD3DSurface;
     IWineD3DSwapChain *swapchain;
+    void *parent;
     HRESULT hr;
     IWineD3DClipper *clipper = NULL;
 
@@ -2403,13 +2400,10 @@ HRESULT WINAPI ddraw_recreate_surfaces_cb(IDirectDrawSurface7 *surf, DDSURFACEDE
     Width = Desc.width;
     Height = Desc.height;
 
-    IWineD3DSurface_GetParent(wineD3DSurface, &Parent);
-
-    /* Create the new surface */
-    hr = IWineD3DDevice_CreateSurface(This->wineD3DDevice, Width, Height, Format,
-            TRUE /* Lockable */, FALSE /* Discard */, surfImpl->mipmap_level, &surfImpl->WineD3DSurface, Usage, Pool,
-            MultiSampleType, MultiSampleQuality, This->ImplType, Parent, &ddraw_null_wined3d_parent_ops);
-    IUnknown_Release(Parent);
+    parent = IWineD3DSurface_GetParent(wineD3DSurface);
+    hr = IWineD3DDevice_CreateSurface(This->wineD3DDevice, Width, Height, Format, TRUE /* Lockable */,
+            FALSE /* Discard */, surfImpl->mipmap_level, Usage, Pool, MultiSampleType, MultiSampleQuality,
+            This->ImplType, parent, &ddraw_null_wined3d_parent_ops, &surfImpl->WineD3DSurface);
     if (FAILED(hr))
     {
         surfImpl->WineD3DSurface = wineD3DSurface;
@@ -2475,13 +2469,13 @@ static HRESULT ddraw_recreate_surfaces(IDirectDrawImpl *This)
     return IDirectDraw7_EnumSurfaces((IDirectDraw7 *)This, 0, &desc, This, ddraw_recreate_surfaces_cb);
 }
 
-ULONG WINAPI D3D7CB_DestroySwapChain(IWineD3DSwapChain *pSwapChain) {
-    IUnknown* swapChainParent;
+ULONG WINAPI D3D7CB_DestroySwapChain(IWineD3DSwapChain *pSwapChain)
+{
+    IUnknown *swapChainParent;
 
     TRACE("swapchain %p.\n", pSwapChain);
 
-    IWineD3DSwapChain_GetParent(pSwapChain, &swapChainParent);
-    IUnknown_Release(swapChainParent);
+    swapChainParent = IWineD3DSwapChain_GetParent(pSwapChain);
     return IUnknown_Release(swapChainParent);
 }
 
@@ -3295,15 +3289,15 @@ static HRESULT WINAPI ddraw7_CreateSurface(IDirectDraw7 *iface,
          */
         if(desc2.ddsCaps.dwCaps2 & DDSCAPS2_CUBEMAP)
         {
-            hr = IWineD3DDevice_CreateCubeTexture(This->wineD3DDevice, DDSD->dwWidth /* Edgelength */,
-                    levels, 0 /* usage */, Format, Pool, (IWineD3DCubeTexture **)&object->wineD3DTexture,
-                    (IUnknown *)object, &ddraw_null_wined3d_parent_ops);
+            hr = IWineD3DDevice_CreateCubeTexture(This->wineD3DDevice, DDSD->dwWidth /* Edgelength */, levels,
+                    0 /* usage */, Format, Pool, object, &ddraw_null_wined3d_parent_ops,
+                    (IWineD3DCubeTexture **)&object->wineD3DTexture);
         }
         else
         {
             hr = IWineD3DDevice_CreateTexture(This->wineD3DDevice, DDSD->dwWidth, DDSD->dwHeight, levels,
-                    0 /* usage */, Format, Pool, (IWineD3DTexture **)&object->wineD3DTexture,
-                    (IUnknown *)object, &ddraw_null_wined3d_parent_ops);
+                    0 /* usage */, Format, Pool, object, &ddraw_null_wined3d_parent_ops,
+                    (IWineD3DTexture **)&object->wineD3DTexture);
         }
         This->tex_root = NULL;
     }
@@ -5375,8 +5369,8 @@ IWineD3DVertexDeclaration *ddraw_find_decl(IDirectDrawImpl *This, DWORD fvf)
     }
     TRACE("not found. Creating and inserting at position %d.\n", low);
 
-    hr = IWineD3DDevice_CreateVertexDeclarationFromFVF(This->wineD3DDevice, &pDecl,
-            (IUnknown *)This, &ddraw_null_wined3d_parent_ops, fvf);
+    hr = IWineD3DDevice_CreateVertexDeclarationFromFVF(This->wineD3DDevice,
+            fvf, This, &ddraw_null_wined3d_parent_ops, &pDecl);
     if (hr != S_OK) return NULL;
 
     if(This->declArraySize == This->numConvertedDecls) {
@@ -5644,7 +5638,7 @@ static HRESULT STDMETHODCALLTYPE device_parent_CreateSwapChain(IWineD3DDevicePar
     ddraw_parent_init(object);
 
     hr = IWineD3DDevice_CreateSwapChain(This->wineD3DDevice, present_parameters,
-            swapchain, (IUnknown *)object, This->ImplType);
+            This->ImplType, object, swapchain);
     if (FAILED(hr))
     {
         FIXME("(%p) CreateSwapChain failed, returning %#x\n", iface, hr);
diff --git a/dlls/ddraw/device.c b/dlls/ddraw/device.c
index 7837dcd..e632151 100644
--- a/dlls/ddraw/device.c
+++ b/dlls/ddraw/device.c
@@ -300,10 +300,8 @@ IDirect3DDeviceImpl_7_Release(IDirect3DDevice7 *iface)
         EnterCriticalSection(&ddraw_cs);
         /* Free the index buffer. */
         IWineD3DDevice_SetIndexBuffer(This->wineD3DDevice, NULL, WINED3DFMT_UNKNOWN);
-        IWineD3DBuffer_GetParent(This->indexbuffer,
-                                 (IUnknown **) &IndexBufferParent);
-        IParent_Release(IndexBufferParent); /* Once for the getParent */
-        if( IParent_Release(IndexBufferParent) != 0)  /* And now to destroy it */
+        IndexBufferParent = IWineD3DBuffer_GetParent(This->indexbuffer);
+        if (IParent_Release(IndexBufferParent))
         {
             ERR(" (%p) Something is still holding the index buffer parent %p\n", This, IndexBufferParent);
         }
@@ -2556,24 +2554,13 @@ IDirect3DDeviceImpl_3_GetRenderState(IDirect3DDevice3 *iface,
 
             EnterCriticalSection(&ddraw_cs);
 
-            hr = IWineD3DDevice_GetTexture(This->wineD3DDevice,
-                                           0,
-                                           &tex);
-
-            if(hr == WINED3D_OK && tex)
+            hr = IWineD3DDevice_GetTexture(This->wineD3DDevice, 0, &tex);
+            if (SUCCEEDED(hr) && tex)
             {
-                IDirectDrawSurface7 *parent = NULL;
-                hr = IWineD3DBaseTexture_GetParent(tex,
-                                                   (IUnknown **) &parent);
-                if(parent)
-                {
-                    /* The parent of the texture is the IDirectDrawSurface7 interface
-                     * of the ddraw surface
-                     */
-                    IDirectDrawSurfaceImpl *texImpl = (IDirectDrawSurfaceImpl *)parent;
-                    *lpdwRenderState = texImpl->Handle;
-                    IDirectDrawSurface7_Release(parent);
-                }
+                /* The parent of the texture is the IDirectDrawSurface7
+                 * interface of the ddraw surface. */
+                IDirectDrawSurfaceImpl *parent = IWineD3DBaseTexture_GetParent(tex);
+                if (parent) *lpdwRenderState = parent->Handle;
                 IWineD3DBaseTexture_Release(tex);
             }
 
@@ -4353,18 +4340,16 @@ IDirect3DDeviceImpl_7_DrawIndexedPrimitiveVB(IDirect3DDevice7 *iface,
     {
         UINT size = max(desc.Size * 2, IndexCount * sizeof(WORD));
         IWineD3DBuffer *buffer;
-        IUnknown *parent;
+        IParentImpl *parent;
 
         TRACE("Growing index buffer to %u bytes\n", size);
 
-        IWineD3DBuffer_GetParent(This->indexbuffer, &parent);
-        hr = IWineD3DDevice_CreateIndexBuffer(This->wineD3DDevice, size,
-                WINED3DUSAGE_DYNAMIC /* Usage */, WINED3DPOOL_DEFAULT, &buffer, parent,
-                &ddraw_null_wined3d_parent_ops);
-        if(hr != D3D_OK)
+        parent = IWineD3DBuffer_GetParent(This->indexbuffer);
+        hr = IWineD3DDevice_CreateIndexBuffer(This->wineD3DDevice, size, WINED3DUSAGE_DYNAMIC /* Usage */,
+                WINED3DPOOL_DEFAULT, parent, &ddraw_null_wined3d_parent_ops, &buffer);
+        if (FAILED(hr))
         {
             ERR("(%p) IWineD3DDevice::CreateIndexBuffer failed with hr = %08x\n", This, hr);
-            IParent_Release(parent);
             LeaveCriticalSection(&ddraw_cs);
             return hr;
         }
@@ -4372,8 +4357,7 @@ IDirect3DDeviceImpl_7_DrawIndexedPrimitiveVB(IDirect3DDevice7 *iface,
         IWineD3DBuffer_Release(This->indexbuffer);
         This->indexbuffer = buffer;
 
-        ((IParentImpl *)parent)->child = (IUnknown *)buffer;
-        IParent_Release(parent);
+        parent->child = (IUnknown *)buffer;
     }
 
     /* copy the index stream into the index buffer.
@@ -4649,11 +4633,8 @@ IDirect3DDeviceImpl_7_GetTexture(IDirect3DDevice7 *iface,
         return hr;
     }
 
-    /* GetParent AddRef()s, which is perfectly OK.
-     * We have passed the IDirectDrawSurface7 interface to WineD3D, so that's OK too.
-     */
-    hr = IWineD3DBaseTexture_GetParent(Surf,
-                                       (IUnknown **) Texture);
+    *Texture = IWineD3DBaseTexture_GetParent(Surf);
+    IDirectDrawSurface7_AddRef(*Texture);
     LeaveCriticalSection(&ddraw_cs);
     return hr;
 }
@@ -7014,8 +6995,8 @@ HRESULT d3d_device_init(IDirect3DDeviceImpl *device, IDirectDrawImpl *ddraw, IDi
     ddraw_parent_init(index_buffer_parent);
 
     hr = IWineD3DDevice_CreateIndexBuffer(ddraw->wineD3DDevice, 0x40000 /* Length. Don't know how long it should be */,
-            WINED3DUSAGE_DYNAMIC /* Usage */, WINED3DPOOL_DEFAULT, &device->indexbuffer,
-            (IUnknown *)index_buffer_parent, &ddraw_null_wined3d_parent_ops);
+            WINED3DUSAGE_DYNAMIC /* Usage */, WINED3DPOOL_DEFAULT, index_buffer_parent,
+            &ddraw_null_wined3d_parent_ops, &device->indexbuffer);
     if (FAILED(hr))
     {
         ERR("Failed to create an index buffer, hr %#x.\n", hr);
diff --git a/dlls/ddraw/palette.c b/dlls/ddraw/palette.c
index f922774..a389480 100644
--- a/dlls/ddraw/palette.c
+++ b/dlls/ddraw/palette.c
@@ -268,7 +268,7 @@ HRESULT ddraw_palette_init(IDirectDrawPaletteImpl *palette,
     palette->ref = 1;
 
     hr = IWineD3DDevice_CreatePalette(ddraw->wineD3DDevice, flags,
-            entries, &palette->wineD3DPalette, (IUnknown *)palette);
+            entries, palette, &palette->wineD3DPalette);
     if (FAILED(hr))
     {
         WARN("Failed to create wined3d palette, hr %#x.\n", hr);
diff --git a/dlls/ddraw/surface.c b/dlls/ddraw/surface.c
index 2785f35..a433913 100644
--- a/dlls/ddraw/surface.c
+++ b/dlls/ddraw/surface.c
@@ -2742,7 +2742,8 @@ static HRESULT WINAPI ddraw_surface7_GetPalette(IDirectDrawSurface7 *iface, IDir
 
     if(wPal)
     {
-        hr = IWineD3DPalette_GetParent(wPal, (IUnknown **) Pal);
+        *Pal = IWineD3DPalette_GetParent(wPal);
+        IDirectDrawPalette_AddRef(*Pal);
     }
     else
     {
@@ -3251,16 +3252,7 @@ static HRESULT WINAPI d3d_texture2_Load(IDirect3DTexture2 *iface, IDirect3DTextu
             LeaveCriticalSection(&ddraw_cs);
             return D3DERR_TEXTURE_LOAD_FAILED;
         }
-        if (wined3d_dst_pal)
-        {
-            hr = IWineD3DPalette_GetParent(wined3d_dst_pal, (IUnknown **)&dst_pal);
-            if (FAILED(hr))
-            {
-                ERR("Failed to get destination palette parent, hr %#x.\n", hr);
-                LeaveCriticalSection(&ddraw_cs);
-                return D3DERR_TEXTURE_LOAD_FAILED;
-            }
-        }
+        if (wined3d_dst_pal) dst_pal = IWineD3DPalette_GetParent(wined3d_dst_pal);
 
         hr = IWineD3DSurface_GetPalette(src_surface->WineD3DSurface, &wined3d_src_pal);
         if (FAILED(hr))
@@ -3269,17 +3261,7 @@ static HRESULT WINAPI d3d_texture2_Load(IDirect3DTexture2 *iface, IDirect3DTextu
             LeaveCriticalSection(&ddraw_cs);
             return D3DERR_TEXTURE_LOAD_FAILED;
         }
-        if (wined3d_src_pal)
-        {
-            hr = IWineD3DPalette_GetParent(wined3d_src_pal, (IUnknown **)&src_pal);
-            if (FAILED(hr))
-            {
-                ERR("Failed to get source palette parent, hr %#x.\n", hr);
-                if (dst_pal) IDirectDrawPalette_Release(dst_pal);
-                LeaveCriticalSection(&ddraw_cs);
-                return D3DERR_TEXTURE_LOAD_FAILED;
-            }
-        }
+        if (wined3d_src_pal) src_pal = IWineD3DPalette_GetParent(wined3d_src_pal);
 
         if (src_pal)
         {
@@ -3287,7 +3269,6 @@ static HRESULT WINAPI d3d_texture2_Load(IDirect3DTexture2 *iface, IDirect3DTextu
 
             if (!dst_pal)
             {
-                IDirectDrawPalette_Release(src_pal);
                 LeaveCriticalSection(&ddraw_cs);
                 return DDERR_NOPALETTEATTACHED;
             }
@@ -3295,9 +3276,6 @@ static HRESULT WINAPI d3d_texture2_Load(IDirect3DTexture2 *iface, IDirect3DTextu
             IDirectDrawPalette_SetEntries(dst_pal, 0, 0, 256, palent);
         }
 
-        if (dst_pal) IDirectDrawPalette_Release(dst_pal);
-        if (src_pal) IDirectDrawPalette_Release(src_pal);
-
         /* Copy one surface on the other */
         dst_desc = (DDSURFACEDESC *)&(dst_surface->surface_desc);
         src_desc = (DDSURFACEDESC *)&(src_surface->surface_desc);
@@ -3600,9 +3578,9 @@ HRESULT ddraw_surface_init(IDirectDrawSurfaceImpl *surface, IDirectDrawImpl *ddr
     surface->ImplType = surface_type;
 
     hr = IWineD3DDevice_CreateSurface(ddraw->wineD3DDevice, desc->dwWidth, desc->dwHeight, format,
-            TRUE /* Lockable */, FALSE /* Discard */, mip_level, &surface->WineD3DSurface,
-            usage, pool, WINED3DMULTISAMPLE_NONE, 0 /* MultiSampleQuality */, surface_type,
-            (IUnknown *)surface, &ddraw_null_wined3d_parent_ops);
+            TRUE /* Lockable */, FALSE /* Discard */, mip_level, usage, pool,
+            WINED3DMULTISAMPLE_NONE, 0 /* MultiSampleQuality */, surface_type, surface,
+            &ddraw_null_wined3d_parent_ops, &surface->WineD3DSurface);
     if (FAILED(hr))
     {
         WARN("Failed to create wined3d surface, hr %#x.\n", hr);
diff --git a/dlls/ddraw/vertexbuffer.c b/dlls/ddraw/vertexbuffer.c
index 48e9ae7..b40faa2 100644
--- a/dlls/ddraw/vertexbuffer.c
+++ b/dlls/ddraw/vertexbuffer.c
@@ -605,7 +605,7 @@ HRESULT d3d_vertex_buffer_init(IDirect3DVertexBufferImpl *buffer,
     hr = IWineD3DDevice_CreateVertexBuffer(ddraw->wineD3DDevice,
             get_flexible_vertex_size(desc->dwFVF) * desc->dwNumVertices,
             usage, desc->dwCaps & D3DVBCAPS_SYSTEMMEMORY ? WINED3DPOOL_SYSTEMMEM : WINED3DPOOL_DEFAULT,
-            &buffer->wineD3DVertexBuffer, (IUnknown *)buffer, &ddraw_null_wined3d_parent_ops);
+            buffer, &ddraw_null_wined3d_parent_ops, &buffer->wineD3DVertexBuffer);
     if (FAILED(hr))
     {
         WARN("Failed to create wined3d vertex buffer, hr %#x.\n", hr);
diff --git a/dlls/dxgi/device.c b/dlls/dxgi/device.c
index 2478063..64c874a 100644
--- a/dlls/dxgi/device.c
+++ b/dlls/dxgi/device.c
@@ -190,16 +190,9 @@ static HRESULT STDMETHODCALLTYPE dxgi_device_CreateSurface(IWineDXGIDevice *ifac
             goto fail;
         }
 
-        hr = IWineD3DSurface_GetParent(wined3d_surface, &parent);
-        IWineD3DSurface_Release(wined3d_surface);
-        if (FAILED(hr))
-        {
-            ERR("GetParent failed, returning %#x\n", hr);
-            goto fail;
-        }
-
+        parent = IWineD3DSurface_GetParent(wined3d_surface);
         hr = IUnknown_QueryInterface(parent, &IID_IDXGISurface, (void **)&surface[i]);
-        IUnknown_Release(parent);
+        IWineD3DSurface_Release(wined3d_surface);
         if (FAILED(hr))
         {
             ERR("Surface should implement IDXGISurface\n");
diff --git a/dlls/dxgi/factory.c b/dlls/dxgi/factory.c
index 9af9b40..fb47364 100644
--- a/dlls/dxgi/factory.c
+++ b/dlls/dxgi/factory.c
@@ -235,17 +235,11 @@ static HRESULT STDMETHODCALLTYPE dxgi_factory_CreateSwapChain(IWineDXGIFactory *
         return hr;
     }
 
-    hr = IWineD3DSwapChain_GetParent(wined3d_swapchain, (IUnknown **)swapchain);
+    swapchain = IWineD3DSwapChain_GetParent(wined3d_swapchain);
     IUnknown_Release(wined3d_swapchain);
-    if (FAILED(hr))
-    {
-        WARN("Failed to get swapchain, returning %#x\n", hr);
-        return hr;
-    }
 
     /* FIXME? The swapchain is created with refcount 1 by the wined3d device,
      * but the wined3d device can't hold a real reference. */
-    IUnknown_Release(*swapchain);
 
     TRACE("Created IDXGISwapChain %p\n", *swapchain);
 
diff --git a/dlls/dxgi/swapchain.c b/dlls/dxgi/swapchain.c
index 891c4ec..de9412b 100644
--- a/dlls/dxgi/swapchain.c
+++ b/dlls/dxgi/swapchain.c
@@ -174,16 +174,10 @@ static HRESULT STDMETHODCALLTYPE dxgi_swapchain_GetBuffer(IDXGISwapChain *iface,
         return hr;
     }
 
-    hr = IWineD3DSurface_GetParent(backbuffer, &parent);
+    parent = IWineD3DSurface_GetParent(backbuffer);
+    hr = IUnknown_QueryInterface(parent, riid, surface);
     IWineD3DSurface_Release(backbuffer);
     LeaveCriticalSection(&dxgi_cs);
-    if (FAILED(hr))
-    {
-        return hr;
-    }
-
-    hr = IUnknown_QueryInterface(parent, riid, surface);
-    IUnknown_Release(parent);
 
     return hr;
 }
@@ -284,7 +278,7 @@ HRESULT dxgi_swapchain_init(struct dxgi_swapchain *swapchain, struct dxgi_device
     swapchain->refcount = 1;
 
     hr = IWineD3DDevice_CreateSwapChain(device->wined3d_device, present_parameters,
-            &swapchain->wined3d_swapchain, (IUnknown *)swapchain, SURFACE_OPENGL);
+            SURFACE_OPENGL, swapchain, &swapchain->wined3d_swapchain);
     if (FAILED(hr))
     {
         WARN("Failed to create wined3d swapchain, hr %#x.\n", hr);
diff --git a/dlls/wined3d/basetexture.c b/dlls/wined3d/basetexture.c
index 584dabd..e3e5404 100644
--- a/dlls/wined3d/basetexture.c
+++ b/dlls/wined3d/basetexture.c
@@ -29,7 +29,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(d3d_texture);
 
 HRESULT basetexture_init(IWineD3DBaseTextureImpl *texture, UINT layer_count, UINT level_count,
         WINED3DRESOURCETYPE resource_type, IWineD3DDeviceImpl *device, UINT size, DWORD usage,
-        const struct wined3d_format *format, WINED3DPOOL pool, IUnknown *parent,
+        const struct wined3d_format *format, WINED3DPOOL pool, void *parent,
         const struct wined3d_parent_ops *parent_ops)
 {
     HRESULT hr;
diff --git a/dlls/wined3d/buffer.c b/dlls/wined3d/buffer.c
index d97aac1..477ac14 100644
--- a/dlls/wined3d/buffer.c
+++ b/dlls/wined3d/buffer.c
@@ -744,10 +744,11 @@ static ULONG STDMETHODCALLTYPE buffer_Release(IWineD3DBuffer *iface)
 }
 
 /* IWineD3DBase methods */
-
-static HRESULT STDMETHODCALLTYPE buffer_GetParent(IWineD3DBuffer *iface, IUnknown **parent)
+static void * STDMETHODCALLTYPE buffer_GetParent(IWineD3DBuffer *iface)
 {
-    return resource_get_parent((IWineD3DResource *)iface, parent);
+    TRACE("iface %p.\n", iface);
+
+    return ((struct wined3d_buffer *)iface)->resource.parent;
 }
 
 /* IWineD3DResource methods */
@@ -1448,7 +1449,7 @@ static const struct IWineD3DBufferVtbl wined3d_buffer_vtbl =
 
 HRESULT buffer_init(struct wined3d_buffer *buffer, IWineD3DDeviceImpl *device,
         UINT size, DWORD usage, enum wined3d_format_id format_id, WINED3DPOOL pool, GLenum bind_hint,
-        const char *data, IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        const char *data, void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
     const struct wined3d_format *format = wined3d_get_format(gl_info, format_id);
diff --git a/dlls/wined3d/cubetexture.c b/dlls/wined3d/cubetexture.c
index fd690a6..728548f 100644
--- a/dlls/wined3d/cubetexture.c
+++ b/dlls/wined3d/cubetexture.c
@@ -230,8 +230,11 @@ static WINED3DRESOURCETYPE WINAPI IWineD3DCubeTextureImpl_GetType(IWineD3DCubeTe
     return resource_get_type((IWineD3DResource *)iface);
 }
 
-static HRESULT WINAPI IWineD3DCubeTextureImpl_GetParent(IWineD3DCubeTexture *iface, IUnknown **pParent) {
-    return resource_get_parent((IWineD3DResource *)iface, pParent);
+static void * WINAPI IWineD3DCubeTextureImpl_GetParent(IWineD3DCubeTexture *iface)
+{
+    TRACE("iface %p.\n", iface);
+
+    return ((IWineD3DCubeTextureImpl *)iface)->resource.parent;
 }
 
 /* ******************************************************
@@ -452,7 +455,7 @@ static const IWineD3DCubeTextureVtbl IWineD3DCubeTexture_Vtbl =
 
 HRESULT cubetexture_init(IWineD3DCubeTextureImpl *texture, UINT edge_length, UINT levels,
         IWineD3DDeviceImpl *device, DWORD usage, enum wined3d_format_id format_id, WINED3DPOOL pool,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
     const struct wined3d_format *format = wined3d_get_format(gl_info, format_id);
diff --git a/dlls/wined3d/device.c b/dlls/wined3d/device.c
index ce1910f..68a6d16 100644
--- a/dlls/wined3d/device.c
+++ b/dlls/wined3d/device.c
@@ -886,7 +886,7 @@ static ULONG WINAPI IWineD3DDeviceImpl_Release(IWineD3DDevice *iface) {
 }
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateBuffer(IWineD3DDevice *iface, struct wined3d_buffer_desc *desc,
-        const void *data, IUnknown *parent, const struct wined3d_parent_ops *parent_ops, IWineD3DBuffer **buffer)
+        const void *data, void *parent, const struct wined3d_parent_ops *parent_ops, IWineD3DBuffer **buffer)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
     struct wined3d_buffer *object;
@@ -921,8 +921,8 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateBuffer(IWineD3DDevice *iface, str
 }
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateVertexBuffer(IWineD3DDevice *iface,
-        UINT Size, DWORD Usage, WINED3DPOOL Pool, IWineD3DBuffer **ppVertexBuffer,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        UINT Size, DWORD Usage, WINED3DPOOL Pool, void *parent,
+        const struct wined3d_parent_ops *parent_ops, IWineD3DBuffer **ppVertexBuffer)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
     struct wined3d_buffer *object;
@@ -965,8 +965,8 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateVertexBuffer(IWineD3DDevice *ifac
 }
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateIndexBuffer(IWineD3DDevice *iface,
-        UINT Length, DWORD Usage, WINED3DPOOL Pool, IWineD3DBuffer **ppIndexBuffer,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        UINT Length, DWORD Usage, WINED3DPOOL Pool, void *parent,
+        const struct wined3d_parent_ops *parent_ops, IWineD3DBuffer **ppIndexBuffer)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
     struct wined3d_buffer *object;
@@ -1029,9 +1029,9 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateStateBlock(IWineD3DDevice *iface,
 }
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateSurface(IWineD3DDevice *iface, UINT Width, UINT Height,
-        enum wined3d_format_id Format, BOOL Lockable, BOOL Discard, UINT Level, IWineD3DSurface **surface,
-        DWORD Usage, WINED3DPOOL Pool, WINED3DMULTISAMPLE_TYPE MultiSample, DWORD MultisampleQuality,
-        WINED3DSURFTYPE Impl, IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        enum wined3d_format_id Format, BOOL Lockable, BOOL Discard, UINT Level, DWORD Usage, WINED3DPOOL Pool,
+        WINED3DMULTISAMPLE_TYPE MultiSample, DWORD MultisampleQuality, WINED3DSURFTYPE Impl,
+        void *parent, const struct wined3d_parent_ops *parent_ops, IWineD3DSurface **surface)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
     IWineD3DSurfaceImpl *object;
@@ -1073,7 +1073,7 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateSurface(IWineD3DDevice *iface, UI
 }
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateRendertargetView(IWineD3DDevice *iface,
-        IWineD3DResource *resource, IUnknown *parent, IWineD3DRendertargetView **rendertarget_view)
+        IWineD3DResource *resource, void *parent, IWineD3DRendertargetView **rendertarget_view)
 {
     struct wined3d_rendertarget_view *object;
 
@@ -1097,7 +1097,7 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateRendertargetView(IWineD3DDevice *
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateTexture(IWineD3DDevice *iface,
         UINT Width, UINT Height, UINT Levels, DWORD Usage, enum wined3d_format_id Format, WINED3DPOOL Pool,
-        IWineD3DTexture **ppTexture, IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops, IWineD3DTexture **ppTexture)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
     IWineD3DTextureImpl *object;
@@ -1133,7 +1133,7 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateTexture(IWineD3DDevice *iface,
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateVolumeTexture(IWineD3DDevice *iface,
         UINT Width, UINT Height, UINT Depth, UINT Levels, DWORD Usage, enum wined3d_format_id Format, WINED3DPOOL Pool,
-        IWineD3DVolumeTexture **ppVolumeTexture, IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops, IWineD3DVolumeTexture **ppVolumeTexture)
 {
     IWineD3DDeviceImpl        *This = (IWineD3DDeviceImpl *)iface;
     IWineD3DVolumeTextureImpl *object;
@@ -1166,8 +1166,8 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateVolumeTexture(IWineD3DDevice *ifa
 }
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateVolume(IWineD3DDevice *iface, UINT Width, UINT Height,
-        UINT Depth, DWORD Usage, enum wined3d_format_id Format, WINED3DPOOL Pool, IWineD3DVolume **ppVolume,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        UINT Depth, DWORD Usage, enum wined3d_format_id Format, WINED3DPOOL Pool, void *parent,
+        const struct wined3d_parent_ops *parent_ops, IWineD3DVolume **ppVolume)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
     IWineD3DVolumeImpl *object;
@@ -1199,8 +1199,8 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateVolume(IWineD3DDevice *iface, UIN
 }
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateCubeTexture(IWineD3DDevice *iface, UINT EdgeLength, UINT Levels,
-        DWORD Usage, enum wined3d_format_id Format, WINED3DPOOL Pool, IWineD3DCubeTexture **ppCubeTexture,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        DWORD Usage, enum wined3d_format_id Format, WINED3DPOOL Pool, void *parent,
+        const struct wined3d_parent_ops *parent_ops, IWineD3DCubeTexture **ppCubeTexture)
 {
     IWineD3DDeviceImpl      *This = (IWineD3DDeviceImpl *)iface;
     IWineD3DCubeTextureImpl *object; /** NOTE: impl ref allowed since this is a create function **/
@@ -1260,8 +1260,8 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateQuery(IWineD3DDevice *iface,
 }
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateSwapChain(IWineD3DDevice *iface,
-        WINED3DPRESENT_PARAMETERS *present_parameters, IWineD3DSwapChain **swapchain,
-        IUnknown *parent, WINED3DSURFTYPE surface_type)
+        WINED3DPRESENT_PARAMETERS *present_parameters, WINED3DSURFTYPE surface_type,
+        void *parent, IWineD3DSwapChain **swapchain)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
     IWineD3DSwapChainImpl *object;
@@ -1316,8 +1316,8 @@ static HRESULT  WINAPI  IWineD3DDeviceImpl_GetSwapChain(IWineD3DDevice *iface, U
 }
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateVertexDeclaration(IWineD3DDevice *iface,
-        IWineD3DVertexDeclaration **declaration, IUnknown *parent, const struct wined3d_parent_ops *parent_ops,
-        const WINED3DVERTEXELEMENT *elements, UINT element_count)
+        const WINED3DVERTEXELEMENT *elements, UINT element_count, void *parent,
+        const struct wined3d_parent_ops *parent_ops, IWineD3DVertexDeclaration **declaration)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
     IWineD3DVertexDeclarationImpl *object = NULL;
@@ -1485,8 +1485,8 @@ static unsigned int ConvertFvfToDeclaration(IWineD3DDeviceImpl *This, /* For the
 }
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateVertexDeclarationFromFVF(IWineD3DDevice *iface,
-        IWineD3DVertexDeclaration **declaration, IUnknown *parent,
-        const struct wined3d_parent_ops *parent_ops, DWORD fvf)
+        DWORD fvf, void *parent, const struct wined3d_parent_ops *parent_ops,
+        IWineD3DVertexDeclaration **declaration)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *) iface;
     WINED3DVERTEXELEMENT *elements;
@@ -1498,15 +1498,15 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateVertexDeclarationFromFVF(IWineD3D
     size = ConvertFvfToDeclaration(This, fvf, &elements);
     if (size == ~0U) return E_OUTOFMEMORY;
 
-    hr = IWineD3DDevice_CreateVertexDeclaration(iface, declaration, parent, parent_ops, elements, size);
+    hr = IWineD3DDeviceImpl_CreateVertexDeclaration(iface, elements, size, parent, parent_ops, declaration);
     HeapFree(GetProcessHeap(), 0, elements);
     return hr;
 }
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateVertexShader(IWineD3DDevice *iface,
         const DWORD *pFunction, const struct wined3d_shader_signature *output_signature,
-        IWineD3DVertexShader **ppVertexShader, IUnknown *parent,
-        const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops,
+        IWineD3DVertexShader **ppVertexShader)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
     IWineD3DVertexShaderImpl *object;
@@ -1535,8 +1535,8 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateVertexShader(IWineD3DDevice *ifac
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreateGeometryShader(IWineD3DDevice *iface,
         const DWORD *byte_code, const struct wined3d_shader_signature *output_signature,
-        IWineD3DGeometryShader **shader, IUnknown *parent,
-        const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops,
+        IWineD3DGeometryShader **shader)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
     struct wined3d_geometryshader *object;
@@ -1565,8 +1565,8 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateGeometryShader(IWineD3DDevice *if
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreatePixelShader(IWineD3DDevice *iface,
         const DWORD *pFunction, const struct wined3d_shader_signature *output_signature,
-        IWineD3DPixelShader **ppPixelShader, IUnknown *parent,
-        const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops,
+        IWineD3DPixelShader **ppPixelShader)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
     IWineD3DPixelShaderImpl *object;
@@ -1594,14 +1594,14 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreatePixelShader(IWineD3DDevice *iface
 }
 
 static HRESULT WINAPI IWineD3DDeviceImpl_CreatePalette(IWineD3DDevice *iface, DWORD Flags,
-        const PALETTEENTRY *PalEnt, IWineD3DPalette **Palette, IUnknown *Parent)
+        const PALETTEENTRY *PalEnt, void *parent, IWineD3DPalette **Palette)
 {
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *) iface;
     IWineD3DPaletteImpl *object;
     HRESULT hr;
 
     TRACE("iface %p, flags %#x, entries %p, palette %p, parent %p.\n",
-            iface, Flags, PalEnt, Palette, Parent);
+            iface, Flags, PalEnt, Palette, parent);
 
     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
     if (!object)
@@ -1610,7 +1610,7 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreatePalette(IWineD3DDevice *iface, DW
         return E_OUTOFMEMORY;
     }
 
-    hr = wined3d_palette_init(object, This, Flags, PalEnt, Parent);
+    hr = wined3d_palette_init(object, This, Flags, PalEnt, parent);
     if (FAILED(hr))
     {
         WARN("Failed to initialize palette, hr %#x.\n", hr);
@@ -1650,10 +1650,11 @@ static void IWineD3DDeviceImpl_LoadLogo(IWineD3DDeviceImpl *This, const char *fi
     }
 
     hr = IWineD3DDevice_CreateSurface((IWineD3DDevice *)This, bm.bmWidth, bm.bmHeight, WINED3DFMT_B5G6R5_UNORM, TRUE,
-            FALSE, 0, &This->logo_surface, 0, WINED3DPOOL_DEFAULT, WINED3DMULTISAMPLE_NONE, 0, SURFACE_OPENGL,
-            NULL, &wined3d_null_parent_ops);
-    if(FAILED(hr)) {
-        ERR("Wine logo requested, but failed to create surface\n");
+            FALSE, 0, 0, WINED3DPOOL_DEFAULT, WINED3DMULTISAMPLE_NONE, 0, SURFACE_OPENGL, NULL,
+            &wined3d_null_parent_ops, &This->logo_surface);
+    if (FAILED(hr))
+    {
+        ERR("Wine logo requested, but failed to create surface, hr %#x.\n", hr);
         goto out;
     }
 
diff --git a/dlls/wined3d/directx.c b/dlls/wined3d/directx.c
index 2960c2a..3beb024 100644
--- a/dlls/wined3d/directx.c
+++ b/dlls/wined3d/directx.c
@@ -4871,11 +4871,11 @@ static HRESULT WINAPI IWineD3DImpl_CreateDevice(IWineD3D *iface, UINT adapter_id
     return WINED3D_OK;
 }
 
-static HRESULT WINAPI IWineD3DImpl_GetParent(IWineD3D *iface, IUnknown **pParent) {
-    IWineD3DImpl *This = (IWineD3DImpl *)iface;
-    IUnknown_AddRef(This->parent);
-    *pParent = This->parent;
-    return WINED3D_OK;
+static void * WINAPI IWineD3DImpl_GetParent(IWineD3D *iface)
+{
+    TRACE("iface %p.\n", iface);
+
+    return ((IWineD3DImpl *)iface)->parent;
 }
 
 static void WINE_GLAPI invalid_func(const void *data)
@@ -5393,7 +5393,7 @@ const struct wined3d_parent_ops wined3d_null_parent_ops =
     wined3d_null_wined3d_object_destroyed,
 };
 
-HRESULT wined3d_init(IWineD3DImpl *wined3d, UINT version, IUnknown *parent)
+HRESULT wined3d_init(IWineD3DImpl *wined3d, UINT version, void *parent)
 {
     wined3d->lpVtbl = &IWineD3D_Vtbl;
     wined3d->dxVersion = version;
diff --git a/dlls/wined3d/palette.c b/dlls/wined3d/palette.c
index 1366ef1..7b83d6b 100644
--- a/dlls/wined3d/palette.c
+++ b/dlls/wined3d/palette.c
@@ -175,13 +175,11 @@ static HRESULT  WINAPI IWineD3DPaletteImpl_GetCaps(IWineD3DPalette *iface, DWORD
     return WINED3D_OK;
 }
 
-static HRESULT  WINAPI IWineD3DPaletteImpl_GetParent(IWineD3DPalette *iface, IUnknown **Parent) {
-    IWineD3DPaletteImpl *This = (IWineD3DPaletteImpl *)iface;
-    TRACE("(%p)->(%p)\n", This, Parent);
+static void * WINAPI IWineD3DPaletteImpl_GetParent(IWineD3DPalette *iface)
+{
+    TRACE("iface %p.\n", iface);
 
-    *Parent = This->parent;
-    IUnknown_AddRef(This->parent);
-    return WINED3D_OK;
+    return ((IWineD3DPaletteImpl *)iface)->parent;
 }
 
 static const IWineD3DPaletteVtbl IWineD3DPalette_Vtbl =
@@ -198,7 +196,7 @@ static const IWineD3DPaletteVtbl IWineD3DPalette_Vtbl =
 };
 
 HRESULT wined3d_palette_init(IWineD3DPaletteImpl *palette, IWineD3DDeviceImpl *device,
-        DWORD flags, const PALETTEENTRY *entries, IUnknown *parent)
+        DWORD flags, const PALETTEENTRY *entries, void *parent)
 {
     HRESULT hr;
 
diff --git a/dlls/wined3d/resource.c b/dlls/wined3d/resource.c
index 4bdd415..3aee3f9 100644
--- a/dlls/wined3d/resource.c
+++ b/dlls/wined3d/resource.c
@@ -29,12 +29,11 @@ WINE_DEFAULT_DEBUG_CHANNEL(d3d);
 
 HRESULT resource_init(IWineD3DResource *iface, WINED3DRESOURCETYPE resource_type,
         IWineD3DDeviceImpl *device, UINT size, DWORD usage, const struct wined3d_format *format,
-        WINED3DPOOL pool, IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        WINED3DPOOL pool, void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     struct IWineD3DResourceClass *resource = &((IWineD3DResourceImpl *)iface)->resource;
 
     resource->device = device;
-    resource->parent = parent;
     resource->resourceType = resource_type;
     resource->ref = 1;
     resource->pool = pool;
@@ -42,6 +41,7 @@ HRESULT resource_init(IWineD3DResource *iface, WINED3DRESOURCETYPE resource_type
     resource->usage = usage;
     resource->size = size;
     resource->priority = 0;
+    resource->parent = parent;
     resource->parent_ops = parent_ops;
     list_init(&resource->privateData);
 
@@ -245,11 +245,3 @@ WINED3DRESOURCETYPE resource_get_type(IWineD3DResource *iface)
     TRACE("(%p) : returning %d\n", This, This->resource.resourceType);
     return This->resource.resourceType;
 }
-
-HRESULT resource_get_parent(IWineD3DResource *iface, IUnknown **pParent)
-{
-    IWineD3DResourceImpl *This = (IWineD3DResourceImpl *)iface;
-    IUnknown_AddRef(This->resource.parent);
-    *pParent = This->resource.parent;
-    return WINED3D_OK;
-}
diff --git a/dlls/wined3d/shader.c b/dlls/wined3d/shader.c
index e2d7f6b..87c664f 100644
--- a/dlls/wined3d/shader.c
+++ b/dlls/wined3d/shader.c
@@ -286,7 +286,7 @@ int shader_addline(struct wined3d_shader_buffer *buffer, const char *format, ...
 }
 
 static void shader_init(struct IWineD3DBaseShaderClass *shader, IWineD3DDeviceImpl *device,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     shader->ref = 1;
     shader->device = (IWineD3DDevice *)device;
@@ -1534,13 +1534,6 @@ const shader_backend_t none_shader_backend = {
     shader_none_color_fixup_supported,
 };
 
-static void shader_get_parent(IWineD3DBaseShaderImpl *shader, IUnknown **parent)
-{
-    *parent = shader->baseShader.parent;
-    IUnknown_AddRef(*parent);
-    TRACE("shader %p, returning %p.\n", shader, *parent);
-}
-
 static HRESULT shader_get_function(IWineD3DBaseShaderImpl *shader, void *data, UINT *data_size)
 {
     if (!data)
@@ -1654,13 +1647,11 @@ static ULONG STDMETHODCALLTYPE vertexshader_Release(IWineD3DVertexShader *iface)
     return refcount;
 }
 
-static HRESULT STDMETHODCALLTYPE vertexshader_GetParent(IWineD3DVertexShader *iface, IUnknown **parent)
+static void * STDMETHODCALLTYPE vertexshader_GetParent(IWineD3DVertexShader *iface)
 {
-    TRACE("iface %p, parent %p.\n", iface, parent);
+    TRACE("iface %p.\n", iface);
 
-    shader_get_parent((IWineD3DBaseShaderImpl *)iface, parent);
-
-    return WINED3D_OK;
+    return ((IWineD3DBaseShaderImpl *)iface)->baseShader.parent;
 }
 
 static HRESULT STDMETHODCALLTYPE vertexshader_GetFunction(IWineD3DVertexShader *iface, void *data, UINT *data_size)
@@ -1829,7 +1820,7 @@ static void vertexshader_set_limits(IWineD3DVertexShaderImpl *shader)
 
 HRESULT vertexshader_init(IWineD3DVertexShaderImpl *shader, IWineD3DDeviceImpl *device,
         const DWORD *byte_code, const struct wined3d_shader_signature *output_signature,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
     struct shader_reg_maps *reg_maps = &shader->baseShader.reg_maps;
@@ -1951,13 +1942,11 @@ static ULONG STDMETHODCALLTYPE geometryshader_Release(IWineD3DGeometryShader *if
     return refcount;
 }
 
-static HRESULT STDMETHODCALLTYPE geometryshader_GetParent(IWineD3DGeometryShader *iface, IUnknown **parent)
+static void * STDMETHODCALLTYPE geometryshader_GetParent(IWineD3DGeometryShader *iface)
 {
-    TRACE("iface %p, parent %p.\n", iface, parent);
+    TRACE("iface %p.\n", iface);
 
-    shader_get_parent((IWineD3DBaseShaderImpl *)iface, parent);
-
-    return WINED3D_OK;
+    return ((IWineD3DBaseShaderImpl *)iface)->baseShader.parent;
 }
 
 static HRESULT STDMETHODCALLTYPE geometryshader_GetFunction(IWineD3DGeometryShader *iface, void *data, UINT *data_size)
@@ -1981,7 +1970,7 @@ static const IWineD3DGeometryShaderVtbl wined3d_geometryshader_vtbl =
 
 HRESULT geometryshader_init(struct wined3d_geometryshader *shader, IWineD3DDeviceImpl *device,
         const DWORD *byte_code, const struct wined3d_shader_signature *output_signature,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     HRESULT hr;
 
@@ -2048,13 +2037,11 @@ static ULONG STDMETHODCALLTYPE pixelshader_Release(IWineD3DPixelShader *iface)
     return refcount;
 }
 
-static HRESULT STDMETHODCALLTYPE pixelshader_GetParent(IWineD3DPixelShader *iface, IUnknown **parent)
+static void * STDMETHODCALLTYPE pixelshader_GetParent(IWineD3DPixelShader *iface)
 {
-    TRACE("iface %p, parent %p.\n", iface, parent);
+    TRACE("iface %p.\n", iface);
 
-    shader_get_parent((IWineD3DBaseShaderImpl *)iface, parent);
-
-    return WINED3D_OK;
+    return ((IWineD3DBaseShaderImpl *)iface)->baseShader.parent;
 }
 
 static HRESULT STDMETHODCALLTYPE pixelshader_GetFunction(IWineD3DPixelShader *iface, void *data, UINT *data_size)
@@ -2253,7 +2240,7 @@ static void pixelshader_set_limits(IWineD3DPixelShaderImpl *shader)
 
 HRESULT pixelshader_init(IWineD3DPixelShaderImpl *shader, IWineD3DDeviceImpl *device,
         const DWORD *byte_code, const struct wined3d_shader_signature *output_signature,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
     unsigned int i, highest_reg_used = 0, num_regs_used = 0;
diff --git a/dlls/wined3d/surface.c b/dlls/wined3d/surface.c
index f7cca8f..0c72c91 100644
--- a/dlls/wined3d/surface.c
+++ b/dlls/wined3d/surface.c
@@ -347,7 +347,7 @@ void draw_textured_quad(IWineD3DSurfaceImpl *src_surface, const RECT *src_rect,
 HRESULT surface_init(IWineD3DSurfaceImpl *surface, WINED3DSURFTYPE surface_type, UINT alignment,
         UINT width, UINT height, UINT level, BOOL lockable, BOOL discard, WINED3DMULTISAMPLE_TYPE multisample_type,
         UINT multisample_quality, IWineD3DDeviceImpl *device, DWORD usage, enum wined3d_format_id format_id,
-        WINED3DPOOL pool, IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        WINED3DPOOL pool, void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
     const struct wined3d_format *format = wined3d_get_format(gl_info, format_id);
diff --git a/dlls/wined3d/surface_base.c b/dlls/wined3d/surface_base.c
index a5d040d..f35d6be 100644
--- a/dlls/wined3d/surface_base.c
+++ b/dlls/wined3d/surface_base.c
@@ -139,9 +139,11 @@ WINED3DRESOURCETYPE WINAPI IWineD3DBaseSurfaceImpl_GetType(IWineD3DSurface *ifac
     return resource_get_type((IWineD3DResource *)iface);
 }
 
-HRESULT WINAPI IWineD3DBaseSurfaceImpl_GetParent(IWineD3DSurface *iface, IUnknown **pParent) {
-    TRACE("(%p) : calling resourceimpl_GetParent\n", iface);
-    return resource_get_parent((IWineD3DResource *)iface, pParent);
+void * WINAPI IWineD3DBaseSurfaceImpl_GetParent(IWineD3DSurface *iface)
+{
+    TRACE("iface %p.\n", iface);
+
+    return ((IWineD3DSurfaceImpl *)iface)->resource.parent;
 }
 
 /* ******************************************************
@@ -811,10 +813,10 @@ static IWineD3DSurfaceImpl *surface_convert_format(IWineD3DSurfaceImpl *source,
     }
 
     IWineD3DDevice_CreateSurface((IWineD3DDevice *)source->resource.device, source->currentDesc.Width,
-            source->currentDesc.Height, to_fmt, TRUE /* lockable */, TRUE /* discard  */, 0 /* level */, &ret,
+            source->currentDesc.Height, to_fmt, TRUE /* lockable */, TRUE /* discard  */, 0 /* level */,
             0 /* usage */, WINED3DPOOL_SCRATCH, WINED3DMULTISAMPLE_NONE /* TODO: Multisampled conversion */,
             0 /* MultiSampleQuality */, IWineD3DSurface_GetImplType((IWineD3DSurface *) source),
-            NULL /* parent */, &wined3d_null_parent_ops);
+            NULL /* parent */, &wined3d_null_parent_ops, &ret);
     if(!ret) {
         ERR("Failed to create a destination surface for conversion\n");
         return NULL;
diff --git a/dlls/wined3d/swapchain.c b/dlls/wined3d/swapchain.c
index 3fb803f..a4e18be 100644
--- a/dlls/wined3d/swapchain.c
+++ b/dlls/wined3d/swapchain.c
@@ -622,7 +622,7 @@ void swapchain_restore_fullscreen_window(IWineD3DSwapChainImpl *swapchain)
 
 
 HRESULT swapchain_init(IWineD3DSwapChainImpl *swapchain, WINED3DSURFTYPE surface_type,
-        IWineD3DDeviceImpl *device, WINED3DPRESENT_PARAMETERS *present_parameters, IUnknown *parent)
+        IWineD3DDeviceImpl *device, WINED3DPRESENT_PARAMETERS *present_parameters, void *parent)
 {
     const struct wined3d_adapter *adapter = device->adapter;
     const struct wined3d_format *format;
diff --git a/dlls/wined3d/swapchain_base.c b/dlls/wined3d/swapchain_base.c
index 917a8b6..5b5739c 100644
--- a/dlls/wined3d/swapchain_base.c
+++ b/dlls/wined3d/swapchain_base.c
@@ -64,12 +64,11 @@ ULONG WINAPI IWineD3DBaseSwapChainImpl_Release(IWineD3DSwapChain *iface) {
     return refCount;
 }
 
-HRESULT WINAPI IWineD3DBaseSwapChainImpl_GetParent(IWineD3DSwapChain *iface, IUnknown ** ppParent){
-    IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
-    *ppParent = This->parent;
-    IUnknown_AddRef(*ppParent);
-    TRACE("(%p) returning %p\n", This , *ppParent);
-    return WINED3D_OK;
+void * WINAPI IWineD3DBaseSwapChainImpl_GetParent(IWineD3DSwapChain *iface)
+{
+    TRACE("iface %p.\n", iface);
+
+    return ((IWineD3DSwapChainImpl *)iface)->parent;
 }
 
 HRESULT WINAPI IWineD3DBaseSwapChainImpl_GetFrontBufferData(IWineD3DSwapChain *iface, IWineD3DSurface *dst_surface)
diff --git a/dlls/wined3d/texture.c b/dlls/wined3d/texture.c
index 4d8aabc..3fc616d 100644
--- a/dlls/wined3d/texture.c
+++ b/dlls/wined3d/texture.c
@@ -221,8 +221,11 @@ static WINED3DRESOURCETYPE WINAPI IWineD3DTextureImpl_GetType(IWineD3DTexture *i
     return resource_get_type((IWineD3DResource *)iface);
 }
 
-static HRESULT WINAPI IWineD3DTextureImpl_GetParent(IWineD3DTexture *iface, IUnknown **pParent) {
-    return resource_get_parent((IWineD3DResource *)iface, pParent);
+static void * WINAPI IWineD3DTextureImpl_GetParent(IWineD3DTexture *iface)
+{
+    TRACE("iface %p.\n", iface);
+
+    return ((IWineD3DTextureImpl *)iface)->resource.parent;
 }
 
 /* ******************************************************
@@ -463,7 +466,7 @@ static const IWineD3DTextureVtbl IWineD3DTexture_Vtbl =
 
 HRESULT texture_init(IWineD3DTextureImpl *texture, UINT width, UINT height, UINT levels,
         IWineD3DDeviceImpl *device, DWORD usage, enum wined3d_format_id format_id, WINED3DPOOL pool,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
     const struct wined3d_format *format = wined3d_get_format(gl_info, format_id);
diff --git a/dlls/wined3d/vertexdeclaration.c b/dlls/wined3d/vertexdeclaration.c
index 056fbb0..59219f0 100644
--- a/dlls/wined3d/vertexdeclaration.c
+++ b/dlls/wined3d/vertexdeclaration.c
@@ -79,13 +79,11 @@ static ULONG WINAPI IWineD3DVertexDeclarationImpl_Release(IWineD3DVertexDeclarat
    IWineD3DVertexDeclaration parts follow
    ******************************************* */
 
-static HRESULT WINAPI IWineD3DVertexDeclarationImpl_GetParent(IWineD3DVertexDeclaration *iface, IUnknown** parent){
-    IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
+static void * WINAPI IWineD3DVertexDeclarationImpl_GetParent(IWineD3DVertexDeclaration *iface)
+{
+    TRACE("iface %p.\n", iface);
 
-    *parent= This->parent;
-    IUnknown_AddRef(*parent);
-    TRACE("(%p) : returning %p\n", This, *parent);
-    return WINED3D_OK;
+    return ((IWineD3DVertexDeclarationImpl *)iface)->parent;
 }
 
 static BOOL declaration_element_valid_ffp(const WINED3DVERTEXELEMENT *element)
@@ -188,7 +186,7 @@ static const IWineD3DVertexDeclarationVtbl IWineD3DVertexDeclaration_Vtbl =
 
 HRESULT vertexdeclaration_init(IWineD3DVertexDeclarationImpl *declaration, IWineD3DDeviceImpl *device,
         const WINED3DVERTEXELEMENT *elements, UINT element_count,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
     WORD preloaded = 0; /* MAX_STREAMS, 16 */
diff --git a/dlls/wined3d/view.c b/dlls/wined3d/view.c
index 0c9919d..e4e40fc 100644
--- a/dlls/wined3d/view.c
+++ b/dlls/wined3d/view.c
@@ -74,14 +74,11 @@ static ULONG STDMETHODCALLTYPE rendertarget_view_Release(IWineD3DRendertargetVie
 
 /* IWineD3DBase methods */
 
-static HRESULT STDMETHODCALLTYPE rendertarget_view_GetParent(IWineD3DRendertargetView *iface, IUnknown **parent)
+static void * STDMETHODCALLTYPE rendertarget_view_GetParent(IWineD3DRendertargetView *iface)
 {
-    struct wined3d_rendertarget_view *This = (struct wined3d_rendertarget_view *)iface;
-
-    IUnknown_AddRef(This->parent);
-    *parent = This->parent;
+    TRACE("iface %p.\n", iface);
 
-    return WINED3D_OK;
+    return ((struct wined3d_rendertarget_view *)iface)->parent;
 }
 
 /* IWineD3DRendertargetView methods */
@@ -110,7 +107,7 @@ static const struct IWineD3DRendertargetViewVtbl wined3d_rendertarget_view_vtbl
 };
 
 void wined3d_rendertarget_view_init(struct wined3d_rendertarget_view *view,
-        IWineD3DResource *resource, IUnknown *parent)
+        IWineD3DResource *resource, void *parent)
 {
     view->vtbl = &wined3d_rendertarget_view_vtbl;
     view->refcount = 1;
diff --git a/dlls/wined3d/volume.c b/dlls/wined3d/volume.c
index 18c8d46..ea49e56 100644
--- a/dlls/wined3d/volume.c
+++ b/dlls/wined3d/volume.c
@@ -139,8 +139,11 @@ static ULONG WINAPI IWineD3DVolumeImpl_Release(IWineD3DVolume *iface) {
 /* ****************************************************
    IWineD3DVolume IWineD3DResource parts follow
    **************************************************** */
-static HRESULT WINAPI IWineD3DVolumeImpl_GetParent(IWineD3DVolume *iface, IUnknown **pParent) {
-    return resource_get_parent((IWineD3DResource *)iface, pParent);
+static void * WINAPI IWineD3DVolumeImpl_GetParent(IWineD3DVolume *iface)
+{
+    TRACE("iface %p.\n", iface);
+
+    return ((IWineD3DVolumeImpl *)iface)->resource.parent;
 }
 
 static HRESULT WINAPI IWineD3DVolumeImpl_SetPrivateData(IWineD3DVolume *iface, REFGUID refguid, CONST void* pData, DWORD SizeOfData, DWORD Flags) {
@@ -325,7 +328,7 @@ static const IWineD3DVolumeVtbl IWineD3DVolume_Vtbl =
 
 HRESULT volume_init(IWineD3DVolumeImpl *volume, IWineD3DDeviceImpl *device, UINT width,
         UINT height, UINT depth, DWORD usage, enum wined3d_format_id format_id, WINED3DPOOL pool,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
     const struct wined3d_format *format = wined3d_get_format(gl_info, format_id);
diff --git a/dlls/wined3d/volumetexture.c b/dlls/wined3d/volumetexture.c
index a64b05d..a2b706e 100644
--- a/dlls/wined3d/volumetexture.c
+++ b/dlls/wined3d/volumetexture.c
@@ -186,8 +186,11 @@ static WINED3DRESOURCETYPE WINAPI IWineD3DVolumeTextureImpl_GetType(IWineD3DVolu
     return resource_get_type((IWineD3DResource *)iface);
 }
 
-static HRESULT WINAPI IWineD3DVolumeTextureImpl_GetParent(IWineD3DVolumeTexture *iface, IUnknown **pParent) {
-    return resource_get_parent((IWineD3DResource *)iface, pParent);
+static void * WINAPI IWineD3DVolumeTextureImpl_GetParent(IWineD3DVolumeTexture *iface)
+{
+    TRACE("iface %p\n", iface);
+
+    return ((IWineD3DVolumeTextureImpl *)iface)->resource.parent;
 }
 
 /* ******************************************************
@@ -385,7 +388,7 @@ static const IWineD3DVolumeTextureVtbl IWineD3DVolumeTexture_Vtbl =
 
 HRESULT volumetexture_init(IWineD3DVolumeTextureImpl *texture, UINT width, UINT height,
         UINT depth, UINT levels, IWineD3DDeviceImpl *device, DWORD usage, enum wined3d_format_id format_id,
-        WINED3DPOOL pool, IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
+        WINED3DPOOL pool, void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
     const struct wined3d_format *format = wined3d_get_format(gl_info, format_id);
diff --git a/dlls/wined3d/wined3d_main.c b/dlls/wined3d/wined3d_main.c
index 991ea80..56e78ad 100644
--- a/dlls/wined3d/wined3d_main.c
+++ b/dlls/wined3d/wined3d_main.c
@@ -76,7 +76,7 @@ wined3d_settings_t wined3d_settings =
     FALSE,          /* No strict draw ordering. */
 };
 
-IWineD3D * WINAPI WineDirect3DCreate(UINT version, IUnknown *parent)
+IWineD3D * WINAPI WineDirect3DCreate(UINT version, void *parent)
 {
     IWineD3DImpl *object;
     HRESULT hr;
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index 66f2182..691b8cc 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -1541,14 +1541,14 @@ typedef struct IWineD3DImpl
     LONG                    ref;     /* Note: Ref counting not required */
 
     /* WineD3D Information */
-    IUnknown               *parent;
+    void *parent;
     UINT                    dxVersion;
 
     UINT adapter_count;
     struct wined3d_adapter adapters[1];
 } IWineD3DImpl;
 
-HRESULT wined3d_init(IWineD3DImpl *wined3d, UINT version, IUnknown *parent) DECLSPEC_HIDDEN;
+HRESULT wined3d_init(IWineD3DImpl *wined3d, UINT version, void *parent) DECLSPEC_HIDDEN;
 BOOL wined3d_register_window(HWND window, struct IWineD3DDeviceImpl *device) DECLSPEC_HIDDEN;
 void wined3d_unregister_window(HWND window) DECLSPEC_HIDDEN;
 
@@ -1748,7 +1748,6 @@ typedef struct IWineD3DResourceClass
     LONG                    ref;     /* Note: Ref counting not required */
 
     /* WineD3DResource Information */
-    IUnknown               *parent;
     WINED3DRESOURCETYPE     resourceType;
     IWineD3DDeviceImpl *device;
     WINED3DPOOL             pool;
@@ -1760,6 +1759,8 @@ typedef struct IWineD3DResourceClass
     BYTE                   *heapMemory; /* Pointer to the HeapAlloced block of memory */
     struct list             privateData;
     struct list             resource_list_entry;
+
+    void *parent;
     const struct wined3d_parent_ops *parent_ops;
 } IWineD3DResourceClass;
 
@@ -1772,13 +1773,12 @@ typedef struct IWineD3DResourceImpl
 
 void resource_cleanup(IWineD3DResource *iface) DECLSPEC_HIDDEN;
 HRESULT resource_free_private_data(IWineD3DResource *iface, REFGUID guid) DECLSPEC_HIDDEN;
-HRESULT resource_get_parent(IWineD3DResource *iface, IUnknown **parent) DECLSPEC_HIDDEN;
 DWORD resource_get_priority(IWineD3DResource *iface) DECLSPEC_HIDDEN;
 HRESULT resource_get_private_data(IWineD3DResource *iface, REFGUID guid,
         void *data, DWORD *data_size) DECLSPEC_HIDDEN;
 HRESULT resource_init(IWineD3DResource *iface, WINED3DRESOURCETYPE resource_type,
         IWineD3DDeviceImpl *device, UINT size, DWORD usage, const struct wined3d_format *format,
-        WINED3DPOOL pool, IUnknown *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
+        WINED3DPOOL pool, void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 WINED3DRESOURCETYPE resource_get_type(IWineD3DResource *iface) DECLSPEC_HIDDEN;
 DWORD resource_set_priority(IWineD3DResource *iface, DWORD new_priority) DECLSPEC_HIDDEN;
 HRESULT resource_set_private_data(IWineD3DResource *iface, REFGUID guid,
@@ -1867,7 +1867,7 @@ IWineD3DResourceImpl *basetexture_get_sub_resource(IWineD3DBaseTextureImpl *text
         UINT layer, UINT level) DECLSPEC_HIDDEN;
 HRESULT basetexture_init(IWineD3DBaseTextureImpl *texture, UINT layer_count, UINT level_count,
         WINED3DRESOURCETYPE resource_type, IWineD3DDeviceImpl *device, UINT size, DWORD usage,
-        const struct wined3d_format *format, WINED3DPOOL pool, IUnknown *parent,
+        const struct wined3d_format *format, WINED3DPOOL pool, void *parent,
         const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 HRESULT basetexture_set_autogen_filter_type(IWineD3DBaseTexture *iface,
         WINED3DTEXTUREFILTERTYPE filter_type) DECLSPEC_HIDDEN;
@@ -1893,7 +1893,7 @@ typedef struct IWineD3DTextureImpl
 
 HRESULT texture_init(IWineD3DTextureImpl *texture, UINT width, UINT height, UINT levels,
         IWineD3DDeviceImpl *device, DWORD usage, enum wined3d_format_id format_id, WINED3DPOOL pool,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
+        void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 
 /*****************************************************************************
  * IWineD3DCubeTexture implementation structure (extends IWineD3DBaseTextureImpl)
@@ -1908,7 +1908,7 @@ typedef struct IWineD3DCubeTextureImpl
 
 HRESULT cubetexture_init(IWineD3DCubeTextureImpl *texture, UINT edge_length, UINT levels,
         IWineD3DDeviceImpl *device, DWORD usage, enum wined3d_format_id format_id, WINED3DPOOL pool,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
+        void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 
 typedef struct _WINED3DVOLUMET_DESC
 {
@@ -1939,7 +1939,7 @@ typedef struct IWineD3DVolumeImpl
 void volume_add_dirty_box(IWineD3DVolume *iface, const WINED3DBOX *dirty_box) DECLSPEC_HIDDEN;
 HRESULT volume_init(IWineD3DVolumeImpl *volume, IWineD3DDeviceImpl *device, UINT width,
         UINT height, UINT depth, DWORD usage, enum wined3d_format_id format_id, WINED3DPOOL pool,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
+        void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 void volume_set_container(IWineD3DVolumeImpl *volume, struct IWineD3DVolumeTextureImpl *container) DECLSPEC_HIDDEN;
 
 /*****************************************************************************
@@ -1955,7 +1955,7 @@ typedef struct IWineD3DVolumeTextureImpl
 
 HRESULT volumetexture_init(IWineD3DVolumeTextureImpl *texture, UINT width, UINT height,
         UINT depth, UINT levels, IWineD3DDeviceImpl *device, DWORD usage, enum wined3d_format_id format_id,
-        WINED3DPOOL pool, IUnknown *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
+        WINED3DPOOL pool, void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 
 typedef struct _WINED3DSURFACET_DESC
 {
@@ -2096,7 +2096,7 @@ GLenum surface_get_gl_buffer(IWineD3DSurfaceImpl *surface) DECLSPEC_HIDDEN;
 HRESULT surface_init(IWineD3DSurfaceImpl *surface, WINED3DSURFTYPE surface_type, UINT alignment,
         UINT width, UINT height, UINT level, BOOL lockable, BOOL discard, WINED3DMULTISAMPLE_TYPE multisample_type,
         UINT multisample_quality, IWineD3DDeviceImpl *device, DWORD usage, enum wined3d_format_id format_id,
-        WINED3DPOOL pool, IUnknown *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
+        WINED3DPOOL pool, void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 BOOL surface_init_sysmem(IWineD3DSurfaceImpl *surface) DECLSPEC_HIDDEN;
 void surface_internal_preload(IWineD3DSurfaceImpl *surface, enum WINED3DSRGB srgb) DECLSPEC_HIDDEN;
 BOOL surface_is_offscreen(IWineD3DSurfaceImpl *iface) DECLSPEC_HIDDEN;
@@ -2119,7 +2119,7 @@ void surface_translate_frontbuffer_coords(IWineD3DSurfaceImpl *surface, HWND win
 HRESULT WINAPI IWineD3DBaseSurfaceImpl_QueryInterface(IWineD3DSurface *iface,
         REFIID riid, LPVOID *ppobj) DECLSPEC_HIDDEN;
 ULONG WINAPI IWineD3DBaseSurfaceImpl_AddRef(IWineD3DSurface *iface) DECLSPEC_HIDDEN;
-HRESULT WINAPI IWineD3DBaseSurfaceImpl_GetParent(IWineD3DSurface *iface, IUnknown **pParent) DECLSPEC_HIDDEN;
+void * WINAPI IWineD3DBaseSurfaceImpl_GetParent(IWineD3DSurface *iface) DECLSPEC_HIDDEN;
 HRESULT WINAPI IWineD3DBaseSurfaceImpl_SetPrivateData(IWineD3DSurface *iface,
         REFGUID refguid, const void *pData, DWORD SizeOfData, DWORD Flags) DECLSPEC_HIDDEN;
 HRESULT WINAPI IWineD3DBaseSurfaceImpl_GetPrivateData(IWineD3DSurface *iface,
@@ -2252,7 +2252,7 @@ typedef struct IWineD3DVertexDeclarationImpl {
     const IWineD3DVertexDeclarationVtbl *lpVtbl;
     LONG                    ref;
 
-    IUnknown                *parent;
+    void *parent;
     const struct wined3d_parent_ops *parent_ops;
     IWineD3DDeviceImpl *device;
 
@@ -2267,7 +2267,7 @@ typedef struct IWineD3DVertexDeclarationImpl {
 
 HRESULT vertexdeclaration_init(IWineD3DVertexDeclarationImpl *declaration, IWineD3DDeviceImpl *device,
         const WINED3DVERTEXELEMENT *elements, UINT element_count,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
+        void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 
 /*****************************************************************************
  * IWineD3DStateBlock implementation structure
@@ -2513,7 +2513,7 @@ const BYTE *buffer_get_memory(IWineD3DBuffer *iface, const struct wined3d_gl_inf
 BYTE *buffer_get_sysmem(struct wined3d_buffer *This, const struct wined3d_gl_info *gl_info) DECLSPEC_HIDDEN;
 HRESULT buffer_init(struct wined3d_buffer *buffer, IWineD3DDeviceImpl *device,
         UINT size, DWORD usage, enum wined3d_format_id format_id, WINED3DPOOL pool, GLenum bind_hint,
-        const char *data, IUnknown *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
+        const char *data, void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 
 /* IWineD3DRendertargetView */
 struct wined3d_rendertarget_view
@@ -2522,11 +2522,11 @@ struct wined3d_rendertarget_view
     LONG refcount;
 
     IWineD3DResource *resource;
-    IUnknown *parent;
+    void *parent;
 };
 
 void wined3d_rendertarget_view_init(struct wined3d_rendertarget_view *view,
-        IWineD3DResource *resource, IUnknown *parent) DECLSPEC_HIDDEN;
+        IWineD3DResource *resource, void *parent) DECLSPEC_HIDDEN;
 
 /*****************************************************************************
  * IWineD3DSwapChainImpl implementation structure (extends IUnknown)
@@ -2538,7 +2538,7 @@ struct IWineD3DSwapChainImpl
     const IWineD3DSwapChainVtbl *lpVtbl;
     LONG                      ref;     /* Note: Ref counting not required */
 
-    IUnknown                 *parent;
+    void *parent;
     IWineD3DDeviceImpl *device;
 
     /* IWineD3DSwapChain fields */
@@ -2568,7 +2568,7 @@ HRESULT WINAPI IWineD3DBaseSwapChainImpl_QueryInterface(IWineD3DSwapChain *iface
         REFIID riid, LPVOID *ppobj) DECLSPEC_HIDDEN;
 ULONG WINAPI IWineD3DBaseSwapChainImpl_AddRef(IWineD3DSwapChain *iface) DECLSPEC_HIDDEN;
 ULONG WINAPI IWineD3DBaseSwapChainImpl_Release(IWineD3DSwapChain *iface) DECLSPEC_HIDDEN;
-HRESULT WINAPI IWineD3DBaseSwapChainImpl_GetParent(IWineD3DSwapChain *iface, IUnknown **ppParent) DECLSPEC_HIDDEN;
+void * WINAPI IWineD3DBaseSwapChainImpl_GetParent(IWineD3DSwapChain *iface) DECLSPEC_HIDDEN;
 HRESULT WINAPI IWineD3DBaseSwapChainImpl_GetFrontBufferData(IWineD3DSwapChain *iface,
         IWineD3DSurface *dst_surface) DECLSPEC_HIDDEN;
 HRESULT WINAPI IWineD3DBaseSwapChainImpl_GetBackBuffer(IWineD3DSwapChain *iface, UINT iBackBuffer,
@@ -2588,7 +2588,7 @@ HRESULT WINAPI IWineD3DBaseSwapChainImpl_GetGammaRamp(IWineD3DSwapChain *iface,
 
 struct wined3d_context *swapchain_create_context_for_thread(IWineD3DSwapChain *iface) DECLSPEC_HIDDEN;
 HRESULT swapchain_init(IWineD3DSwapChainImpl *swapchain, WINED3DSURFTYPE surface_type,
-        IWineD3DDeviceImpl *device, WINED3DPRESENT_PARAMETERS *present_parameters, IUnknown *parent) DECLSPEC_HIDDEN;
+        IWineD3DDeviceImpl *device, WINED3DPRESENT_PARAMETERS *present_parameters, void *parent) DECLSPEC_HIDDEN;
 void swapchain_restore_fullscreen_window(IWineD3DSwapChainImpl *swapchain) DECLSPEC_HIDDEN;
 void swapchain_setup_fullscreen_window(IWineD3DSwapChainImpl *swapchain, UINT w, UINT h) DECLSPEC_HIDDEN;
 
@@ -2717,7 +2717,7 @@ typedef struct IWineD3DBaseShaderClass
     void *frontend_data;
     void *backend_data;
 
-    IUnknown *parent;
+    void *parent;
     const struct wined3d_parent_ops *parent_ops;
 
     /* Programs this shader is linked with */
@@ -2841,7 +2841,7 @@ void find_vs_compile_args(IWineD3DVertexShaderImpl *shader, IWineD3DStateBlockIm
         struct vs_compile_args *args) DECLSPEC_HIDDEN;
 HRESULT vertexshader_init(IWineD3DVertexShaderImpl *shader, IWineD3DDeviceImpl *device,
         const DWORD *byte_code, const struct wined3d_shader_signature *output_signature,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
+        void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 
 struct wined3d_geometryshader
 {
@@ -2851,7 +2851,7 @@ struct wined3d_geometryshader
 
 HRESULT geometryshader_init(struct wined3d_geometryshader *shader, IWineD3DDeviceImpl *device,
         const DWORD *byte_code, const struct wined3d_shader_signature *output_signature,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
+        void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 
 /*****************************************************************************
  * IDirect3DPixelShader implementation structure
@@ -2896,7 +2896,7 @@ typedef struct IWineD3DPixelShaderImpl {
 
 HRESULT pixelshader_init(IWineD3DPixelShaderImpl *shader, IWineD3DDeviceImpl *device,
         const DWORD *byte_code, const struct wined3d_shader_signature *output_signature,
-        IUnknown *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
+        void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 void pixelshader_update_samplers(struct shader_reg_maps *reg_maps,
         IWineD3DBaseTexture * const *textures) DECLSPEC_HIDDEN;
 void find_ps_compile_args(IWineD3DPixelShaderImpl *shader, IWineD3DStateBlockImpl *stateblock,
@@ -2917,7 +2917,7 @@ struct IWineD3DPaletteImpl {
     const IWineD3DPaletteVtbl  *lpVtbl;
     LONG                       ref;
 
-    IUnknown                   *parent;
+    void *parent;
     IWineD3DDeviceImpl *device;
 
     /* IWineD3DPalette */
@@ -2931,7 +2931,7 @@ struct IWineD3DPaletteImpl {
 };
 
 HRESULT wined3d_palette_init(IWineD3DPaletteImpl *palette, IWineD3DDeviceImpl *device,
-        DWORD flags, const PALETTEENTRY *entries, IUnknown *parent) DECLSPEC_HIDDEN;
+        DWORD flags, const PALETTEENTRY *entries, void *parent) DECLSPEC_HIDDEN;
 
 /* DirectDraw utility functions */
 extern enum wined3d_format_id pixelformat_for_depth(DWORD depth) DECLSPEC_HIDDEN;
diff --git a/include/wine/wined3d.idl b/include/wine/wined3d.idl
index c46b04f..230d012 100644
--- a/include/wine/wined3d.idl
+++ b/include/wine/wined3d.idl
@@ -2178,8 +2178,7 @@ typedef HRESULT (__stdcall *D3DCB_ENUMRESOURCES)(IWineD3DResource *resource, voi
 ]
 interface IWineD3DBase : IUnknown
 {
-    HRESULT GetParent(
-        [out] IUnknown **parent
+    void *GetParent(
     );
 }
 
@@ -2797,7 +2796,7 @@ interface IWineD3DDevice : IUnknown
     HRESULT CreateBuffer(
         [in] struct wined3d_buffer_desc *desc,
         [in] const void *data,
-        [in] IUnknown *parent,
+        [in] void *parent,
         [in] const struct wined3d_parent_ops *parent_ops,
         [out] IWineD3DBuffer **buffer
     );
@@ -2805,17 +2804,17 @@ interface IWineD3DDevice : IUnknown
         [in] UINT length,
         [in] DWORD usage,
         [in] WINED3DPOOL pool,
-        [out] IWineD3DBuffer **vertex_buffer,
-        [in] IUnknown *parent,
-        [in] const struct wined3d_parent_ops *parent_ops
+        [in] void *parent,
+        [in] const struct wined3d_parent_ops *parent_ops,
+        [out] IWineD3DBuffer **vertex_buffer
     );
     HRESULT CreateIndexBuffer(
         [in] UINT length,
         [in] DWORD usage,
         [in] WINED3DPOOL pool,
-        [out] IWineD3DBuffer **index_buffer,
-        [in] IUnknown *parent,
-        [in] const struct wined3d_parent_ops *parent_ops
+        [in] void *parent,
+        [in] const struct wined3d_parent_ops *parent_ops,
+        [out] IWineD3DBuffer **index_buffer
     );
     HRESULT CreateStateBlock(
         [in] WINED3DSTATEBLOCKTYPE type,
@@ -2828,18 +2827,18 @@ interface IWineD3DDevice : IUnknown
         [in] BOOL lockable,
         [in] BOOL discard,
         [in] UINT level,
-        [out] IWineD3DSurface **surface,
         [in] DWORD usage,
         [in] WINED3DPOOL pool,
         [in] WINED3DMULTISAMPLE_TYPE multisample_type,
         [in] DWORD multisample_quality,
         [in] WINED3DSURFTYPE surface_type,
-        [in] IUnknown *parent,
-        [in] const struct wined3d_parent_ops *parent_ops
+        [in] void *parent,
+        [in] const struct wined3d_parent_ops *parent_ops,
+        [out] IWineD3DSurface **surface
     );
     HRESULT CreateRendertargetView(
         [in] IWineD3DResource *resource,
-        [in] IUnknown *parent,
+        [in] void *parent,
         [out] IWineD3DRendertargetView **rendertarget_view
     );
     HRESULT CreateTexture(
@@ -2849,9 +2848,9 @@ interface IWineD3DDevice : IUnknown
         [in] DWORD usage,
         [in] enum wined3d_format_id format_id,
         [in] WINED3DPOOL pool,
-        [out] IWineD3DTexture **texture,
-        [in] IUnknown *parent,
-        [in] const struct wined3d_parent_ops *parent_ops
+        [in] void *parent,
+        [in] const struct wined3d_parent_ops *parent_ops,
+        [out] IWineD3DTexture **texture
     );
     HRESULT CreateVolumeTexture(
         [in] UINT width,
@@ -2861,9 +2860,9 @@ interface IWineD3DDevice : IUnknown
         [in] DWORD usage,
         [in] enum wined3d_format_id format_id,
         [in] WINED3DPOOL pool,
-        [out] IWineD3DVolumeTexture **texture,
-        [in] IUnknown *parent,
-        [in] const struct wined3d_parent_ops *parent_ops
+        [in] void *parent,
+        [in] const struct wined3d_parent_ops *parent_ops,
+        [out] IWineD3DVolumeTexture **texture
     );
     HRESULT CreateVolume(
         [in] UINT width,
@@ -2872,9 +2871,9 @@ interface IWineD3DDevice : IUnknown
         [in] DWORD usage,
         [in] enum wined3d_format_id format_id,
         [in] WINED3DPOOL pool,
-        [out] IWineD3DVolume **volume,
-        [in] IUnknown *parent,
-        [in] const struct wined3d_parent_ops *parent_ops
+        [in] void *parent,
+        [in] const struct wined3d_parent_ops *parent_ops,
+        [out] IWineD3DVolume **volume
     );
     HRESULT CreateCubeTexture(
         [in] UINT edge_length,
@@ -2882,9 +2881,9 @@ interface IWineD3DDevice : IUnknown
         [in] DWORD usage,
         [in] enum wined3d_format_id format_id,
         [in] WINED3DPOOL pool,
-        [out] IWineD3DCubeTexture **texture,
-        [in] IUnknown *parent,
-        [in] const struct wined3d_parent_ops *parent_ops
+        [in] void *parent,
+        [in] const struct wined3d_parent_ops *parent_ops,
+        [out] IWineD3DCubeTexture **texture
     );
     HRESULT CreateQuery(
         [in] WINED3DQUERYTYPE type,
@@ -2892,49 +2891,49 @@ interface IWineD3DDevice : IUnknown
     );
     HRESULT CreateSwapChain(
         [in] WINED3DPRESENT_PARAMETERS *present_parameters,
-        [out] IWineD3DSwapChain **swapchain,
-        [in] IUnknown *parent,
-        [in] WINED3DSURFTYPE surface_type
+        [in] WINED3DSURFTYPE surface_type,
+        [in] void *parent,
+        [out] IWineD3DSwapChain **swapchain
     );
     HRESULT CreateVertexDeclaration(
-        [out] IWineD3DVertexDeclaration **declaration,
-        [in] IUnknown *parent,
-        [in] const struct wined3d_parent_ops *parent_ops,
         [in] const WINED3DVERTEXELEMENT *elements,
-        [in] UINT element_count
+        [in] UINT element_count,
+        [in] void *parent,
+        [in] const struct wined3d_parent_ops *parent_ops,
+        [out] IWineD3DVertexDeclaration **declaration
     );
     HRESULT CreateVertexDeclarationFromFVF(
-        [out] IWineD3DVertexDeclaration **declaration,
-        [in] IUnknown *parent,
+        [in] DWORD fvf,
+        [in] void *parent,
         [in] const struct wined3d_parent_ops *parent_ops,
-        [in] DWORD fvf
+        [out] IWineD3DVertexDeclaration **declaration
     );
     HRESULT CreateVertexShader(
         [in] const DWORD *function,
         [in] const struct wined3d_shader_signature *output_signature,
-        [out] IWineD3DVertexShader **shader,
-        [in] IUnknown *parent,
-        [in] const struct wined3d_parent_ops *parent_ops
+        [in] void *parent,
+        [in] const struct wined3d_parent_ops *parent_ops,
+        [out] IWineD3DVertexShader **shader
     );
     HRESULT CreateGeometryShader(
         [in] const DWORD *byte_code,
         [in] const struct wined3d_shader_signature *output_signature,
-        [out] IWineD3DGeometryShader **shader,
-        [in] IUnknown *parent,
-        [in] const struct wined3d_parent_ops *parent_ops
+        [in] void *parent,
+        [in] const struct wined3d_parent_ops *parent_ops,
+        [out] IWineD3DGeometryShader **shader
     );
     HRESULT CreatePixelShader(
         [in] const DWORD *function,
         [in] const struct wined3d_shader_signature *output_signature,
-        [out] IWineD3DPixelShader **shader,
-        [in] IUnknown *parent,
-        [in] const struct wined3d_parent_ops *parent_ops
+        [in] void *parent,
+        [in] const struct wined3d_parent_ops *parent_ops,
+        [out] IWineD3DPixelShader **shader
     );
     HRESULT CreatePalette(
         [in] DWORD flags,
         [in] const PALETTEENTRY *palette_entry,
-        [out] IWineD3DPalette **palette,
-        [in] IUnknown *parent
+        [in] void *parent,
+        [out] IWineD3DPalette **palette
     );
     HRESULT Init3D(
         [in] WINED3DPRESENT_PARAMETERS *present_parameters
@@ -3388,7 +3387,7 @@ interface IWineD3DDevice : IUnknown
     );
 }
 
-IWineD3D * __stdcall WineDirect3DCreate(UINT dxVersion, IUnknown *parent);
+IWineD3D * __stdcall WineDirect3DCreate(UINT dxVersion, void *parent);
 IWineD3DClipper * __stdcall WineDirect3DCreateClipper(void);
 void __stdcall wined3d_mutex_lock(void);
 void __stdcall wined3d_mutex_unlock(void);
-- 
1.7.1




More information about the wine-patches mailing list