dlls/d3d9/swapchain.c - wine - Git at Google

 /*
  * IDirect3DSwapChain9 implementation
  *
  * Copyright 2002-2003 Jason Edmeades
  *                     Raphael Junqueira
  * Copyright 2005 Oliver Stieber
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */

 #include "config.h"
 #include "d3d9_private.h"

 WINE_DEFAULT_DEBUG_CHANNEL(d3d9);

 static inline struct d3d9_swapchain *impl_from_IDirect3DSwapChain9Ex(IDirect3DSwapChain9Ex *iface)
 {
     return CONTAINING_RECORD(iface, struct d3d9_swapchain, IDirect3DSwapChain9Ex_iface);
 }

 static HRESULT WINAPI d3d9_swapchain_QueryInterface(IDirect3DSwapChain9Ex *iface, REFIID riid, void **out)
 {
     TRACE("iface %p, riid %s, out %p.\n", iface, debugstr_guid(riid), out);

     if (IsEqualGUID(riid, &IID_IDirect3DSwapChain9)
             || IsEqualGUID(riid, &IID_IUnknown))
     {
         IDirect3DSwapChain9Ex_AddRef(iface);
         *out = iface;
         return S_OK;
     }

     if (IsEqualGUID(riid, &IID_IDirect3DSwapChain9Ex))
     {
         struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
         struct d3d9_device *device       = impl_from_IDirect3DDevice9Ex(swapchain->parent_device);

         /* Find out if the creating d3d9 interface was created with Direct3DCreate9Ex.
          * It doesn't matter with which function the device was created. */
         if (!device->d3d_parent->extended)
         {
             WARN("IDirect3D9 instance wasn't created with CreateDirect3D9Ex, returning E_NOINTERFACE.\n");
             *out = NULL;
             return E_NOINTERFACE;
         }

         IDirect3DSwapChain9Ex_AddRef(iface);
         *out = iface;
         return S_OK;
     }

     WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));

     *out = NULL;
     return E_NOINTERFACE;
 }

 static ULONG WINAPI d3d9_swapchain_AddRef(IDirect3DSwapChain9Ex *iface)
 {
     struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
     ULONG refcount = InterlockedIncrement(&swapchain->refcount);

     TRACE("%p increasing refcount to %u.\n", iface, refcount);

     if (refcount == 1)
     {
         if (swapchain->parent_device)
             IDirect3DDevice9Ex_AddRef(swapchain->parent_device);

         wined3d_mutex_lock();
         wined3d_swapchain_incref(swapchain->wined3d_swapchain);
         wined3d_mutex_unlock();
     }

     return refcount;
 }

 static ULONG WINAPI d3d9_swapchain_Release(IDirect3DSwapChain9Ex *iface)
 {
     struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
     ULONG refcount;

     if (!swapchain->refcount)
     {
         WARN("Swapchain does not have any references.\n");
         return 0;
     }

     refcount = InterlockedDecrement(&swapchain->refcount);
     TRACE("%p decreasing refcount to %u.\n", iface, refcount);

     if (!refcount)
     {
         IDirect3DDevice9Ex *parent_device = swapchain->parent_device;

         wined3d_mutex_lock();
         wined3d_swapchain_decref(swapchain->wined3d_swapchain);
         wined3d_mutex_unlock();

         /* Release the device last, as it may cause the device to be destroyed. */
         if (parent_device)
             IDirect3DDevice9Ex_Release(parent_device);
     }

     return refcount;
 }

 static HRESULT WINAPI DECLSPEC_HOTPATCH d3d9_swapchain_Present(IDirect3DSwapChain9Ex *iface,
         const RECT *src_rect, const RECT *dst_rect, HWND dst_window_override,
         const RGNDATA *dirty_region, DWORD flags)
 {
     struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
     struct d3d9_device *device = impl_from_IDirect3DDevice9Ex(swapchain->parent_device);
     HRESULT hr;

     TRACE("iface %p, src_rect %s, dst_rect %s, dst_window_override %p, dirty_region %p, flags %#x.\n",
             iface, wine_dbgstr_rect(src_rect), wine_dbgstr_rect(dst_rect),
             dst_window_override, dirty_region, flags);

     if (device->device_state != D3D9_DEVICE_STATE_OK)
         return device->d3d_parent->extended ? S_PRESENT_OCCLUDED : D3DERR_DEVICELOST;

     if (dirty_region)
         FIXME("Ignoring dirty_region %p.\n", dirty_region);

     wined3d_mutex_lock();
     hr = wined3d_swapchain_present(swapchain->wined3d_swapchain,
             src_rect, dst_rect, dst_window_override, flags);
     wined3d_mutex_unlock();

     return hr;
 }

 static HRESULT WINAPI d3d9_swapchain_GetFrontBufferData(IDirect3DSwapChain9Ex *iface, IDirect3DSurface9 *surface)
 {
     struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
     struct d3d9_surface *dst = unsafe_impl_from_IDirect3DSurface9(surface);
     HRESULT hr;

     TRACE("iface %p, surface %p.\n", iface, surface);

     wined3d_mutex_lock();
     hr = wined3d_swapchain_get_front_buffer_data(swapchain->wined3d_swapchain, dst->wined3d_texture, dst->sub_resource_idx);
     wined3d_mutex_unlock();

     return hr;
 }

 static HRESULT WINAPI d3d9_swapchain_GetBackBuffer(IDirect3DSwapChain9Ex *iface,
         UINT backbuffer_idx, D3DBACKBUFFER_TYPE backbuffer_type, IDirect3DSurface9 **backbuffer)
 {
     struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
     struct wined3d_texture *wined3d_texture;
     struct d3d9_surface *surface_impl;
     HRESULT hr = D3D_OK;

     TRACE("iface %p, backbuffer_idx %u, backbuffer_type %#x, backbuffer %p.\n",
             iface, backbuffer_idx, backbuffer_type, backbuffer);

     /* backbuffer_type is ignored by native. */

     if (!backbuffer)
     {
         WARN("The output pointer is NULL, returning D3DERR_INVALIDCALL.\n");
         return D3DERR_INVALIDCALL;
     }

     wined3d_mutex_lock();
     if ((wined3d_texture = wined3d_swapchain_get_back_buffer(swapchain->wined3d_swapchain, backbuffer_idx)))
     {
         surface_impl = wined3d_texture_get_sub_resource_parent(wined3d_texture, 0);
         *backbuffer = &surface_impl->IDirect3DSurface9_iface;
         IDirect3DSurface9_AddRef(*backbuffer);
     }
     else
     {
         /* Do not set *backbuffer = NULL, see tests/device.c, test_swapchain(). */
         hr = D3DERR_INVALIDCALL;
     }
     wined3d_mutex_unlock();

     return hr;
 }

 static HRESULT WINAPI d3d9_swapchain_GetRasterStatus(IDirect3DSwapChain9Ex *iface, D3DRASTER_STATUS *raster_status)
 {
     struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
     HRESULT hr;

     TRACE("iface %p, raster_status %p.\n", iface, raster_status);

     wined3d_mutex_lock();
     hr = wined3d_swapchain_get_raster_status(swapchain->wined3d_swapchain,
             (struct wined3d_raster_status *)raster_status);
     wined3d_mutex_unlock();

     return hr;
 }

 static HRESULT WINAPI d3d9_swapchain_GetDisplayMode(IDirect3DSwapChain9Ex *iface, D3DDISPLAYMODE *mode)
 {
     struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
     struct wined3d_display_mode wined3d_mode;
     HRESULT hr;

     TRACE("iface %p, mode %p.\n", iface, mode);

     wined3d_mutex_lock();
     hr = wined3d_swapchain_get_display_mode(swapchain->wined3d_swapchain, &wined3d_mode, NULL);
     wined3d_mutex_unlock();

     if (SUCCEEDED(hr))
     {
         mode->Width = wined3d_mode.width;
         mode->Height = wined3d_mode.height;
         mode->RefreshRate = wined3d_mode.refresh_rate;
         mode->Format = d3dformat_from_wined3dformat(wined3d_mode.format_id);
     }

     return hr;
 }

 static HRESULT WINAPI d3d9_swapchain_GetDevice(IDirect3DSwapChain9Ex *iface, IDirect3DDevice9 **device)
 {
     struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);

     TRACE("iface %p, device %p.\n", iface, device);

     *device = (IDirect3DDevice9 *)swapchain->parent_device;
     IDirect3DDevice9_AddRef(*device);

     TRACE("Returning device %p.\n", *device);

     return D3D_OK;
 }

 static HRESULT WINAPI d3d9_swapchain_GetPresentParameters(IDirect3DSwapChain9Ex *iface,
         D3DPRESENT_PARAMETERS *parameters)
 {
     struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
     struct wined3d_swapchain_desc desc;

     TRACE("iface %p, parameters %p.\n", iface, parameters);

     wined3d_mutex_lock();
     wined3d_swapchain_get_desc(swapchain->wined3d_swapchain, &desc);
     wined3d_mutex_unlock();
     present_parameters_from_wined3d_swapchain_desc(parameters, &desc);

     return D3D_OK;
 }

 static HRESULT WINAPI d3d9_swapchain_GetLastPresentCount(IDirect3DSwapChain9Ex *iface,
         UINT *last_present_count)
 {
     FIXME("iface %p, last_present_count %p, stub!\n", iface, last_present_count);

     if (last_present_count)
         *last_present_count = 0;

     return D3D_OK;
 }

 static HRESULT WINAPI d3d9_swapchain_GetPresentStatistics(IDirect3DSwapChain9Ex *iface,
         D3DPRESENTSTATS *present_stats)
 {
     FIXME("iface %p, present_stats %p, stub!\n", iface, present_stats);

     if (present_stats)
         memset(present_stats, 0, sizeof(*present_stats));

     return D3D_OK;
 }

 static HRESULT WINAPI d3d9_swapchain_GetDisplayModeEx(IDirect3DSwapChain9Ex *iface,
         D3DDISPLAYMODEEX *mode, D3DDISPLAYROTATION *rotation)
 {
     struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
     struct wined3d_display_mode wined3d_mode;
     HRESULT hr;

     TRACE("iface %p, mode %p, rotation %p.\n", iface, mode, rotation);

     if (mode->Size != sizeof(*mode))
         return D3DERR_INVALIDCALL;

     wined3d_mutex_lock();
     hr = wined3d_swapchain_get_display_mode(swapchain->wined3d_swapchain, &wined3d_mode,
             (enum wined3d_display_rotation *)rotation);
     wined3d_mutex_unlock();

     if (SUCCEEDED(hr))
     {
         mode->Width = wined3d_mode.width;
         mode->Height = wined3d_mode.height;
         mode->RefreshRate = wined3d_mode.refresh_rate;
         mode->Format = d3dformat_from_wined3dformat(wined3d_mode.format_id);
         mode->ScanLineOrdering = wined3d_mode.scanline_ordering;
     }

     return hr;
 }

 static const struct IDirect3DSwapChain9ExVtbl d3d9_swapchain_vtbl =
 {
     /* IUnknown */
     d3d9_swapchain_QueryInterface,
     d3d9_swapchain_AddRef,
     d3d9_swapchain_Release,
     /* IDirect3DSwapChain9 */
     d3d9_swapchain_Present,
     d3d9_swapchain_GetFrontBufferData,
     d3d9_swapchain_GetBackBuffer,
     d3d9_swapchain_GetRasterStatus,
     d3d9_swapchain_GetDisplayMode,
     d3d9_swapchain_GetDevice,
     d3d9_swapchain_GetPresentParameters,
     /* IDirect3DSwapChain9Ex */
     d3d9_swapchain_GetLastPresentCount,
     d3d9_swapchain_GetPresentStatistics,
     d3d9_swapchain_GetDisplayModeEx
 };

 static void STDMETHODCALLTYPE d3d9_swapchain_wined3d_object_released(void *parent)
 {
     HeapFree(GetProcessHeap(), 0, parent);
 }

 static const struct wined3d_parent_ops d3d9_swapchain_wined3d_parent_ops =
 {
     d3d9_swapchain_wined3d_object_released,
 };

 static HRESULT swapchain_init(struct d3d9_swapchain *swapchain, struct d3d9_device *device,
         struct wined3d_swapchain_desc *desc)
 {
     HRESULT hr;

     swapchain->refcount = 1;
     swapchain->IDirect3DSwapChain9Ex_iface.lpVtbl = &d3d9_swapchain_vtbl;

     wined3d_mutex_lock();
     hr = wined3d_swapchain_create(device->wined3d_device, desc, swapchain,
             &d3d9_swapchain_wined3d_parent_ops, &swapchain->wined3d_swapchain);
     wined3d_mutex_unlock();

     if (FAILED(hr))
     {
         WARN("Failed to create wined3d swapchain, hr %#x.\n", hr);
         return hr;
     }

     swapchain->parent_device = &device->IDirect3DDevice9Ex_iface;
     IDirect3DDevice9Ex_AddRef(swapchain->parent_device);

     return D3D_OK;
 }

 HRESULT d3d9_swapchain_create(struct d3d9_device *device, struct wined3d_swapchain_desc *desc,
         struct d3d9_swapchain **swapchain)
 {
     struct d3d9_swapchain *object;
     HRESULT hr;

     if (!(object = HeapAlloc(GetProcessHeap(),  HEAP_ZERO_MEMORY, sizeof(*object))))
         return E_OUTOFMEMORY;

     if (FAILED(hr = swapchain_init(object, device, desc)))
     {
         WARN("Failed to initialize swapchain, hr %#x.\n", hr);
         HeapFree(GetProcessHeap(), 0, object);
         return hr;
     }

     TRACE("Created swapchain %p.\n", object);
     *swapchain = object;

     return D3D_OK;
 }
	/*
	* IDirect3DSwapChain9 implementation
	*
	* Copyright 2002-2003 Jason Edmeades
	* Raphael Junqueira
	* Copyright 2005 Oliver Stieber
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this library; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
	*/

	#include "config.h"
	#include "d3d9_private.h"

	WINE_DEFAULT_DEBUG_CHANNEL(d3d9);

	static inline struct d3d9_swapchain impl_from_IDirect3DSwapChain9Ex(IDirect3DSwapChain9Ex iface)
	{
	return CONTAINING_RECORD(iface, struct d3d9_swapchain, IDirect3DSwapChain9Ex_iface);
	}

	static HRESULT WINAPI d3d9_swapchain_QueryInterface(IDirect3DSwapChain9Ex iface, REFIID riid, void *out)
	{
	TRACE("iface %p, riid %s, out %p.\n", iface, debugstr_guid(riid), out);

	if (IsEqualGUID(riid, &IID_IDirect3DSwapChain9)
	\|\| IsEqualGUID(riid, &IID_IUnknown))
	{
	IDirect3DSwapChain9Ex_AddRef(iface);
	*out = iface;
	return S_OK;
	}

	if (IsEqualGUID(riid, &IID_IDirect3DSwapChain9Ex))
	{
	struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
	struct d3d9_device *device = impl_from_IDirect3DDevice9Ex(swapchain->parent_device);

	/* Find out if the creating d3d9 interface was created with Direct3DCreate9Ex.
	* It doesn't matter with which function the device was created. */
	if (!device->d3d_parent->extended)
	{
	WARN("IDirect3D9 instance wasn't created with CreateDirect3D9Ex, returning E_NOINTERFACE.\n");
	*out = NULL;
	return E_NOINTERFACE;
	}

	IDirect3DSwapChain9Ex_AddRef(iface);
	*out = iface;
	return S_OK;
	}

	WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));

	*out = NULL;
	return E_NOINTERFACE;
	}

	static ULONG WINAPI d3d9_swapchain_AddRef(IDirect3DSwapChain9Ex *iface)
	{
	struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
	ULONG refcount = InterlockedIncrement(&swapchain->refcount);

	TRACE("%p increasing refcount to %u.\n", iface, refcount);

	if (refcount == 1)
	{
	if (swapchain->parent_device)
	IDirect3DDevice9Ex_AddRef(swapchain->parent_device);

	wined3d_mutex_lock();
	wined3d_swapchain_incref(swapchain->wined3d_swapchain);
	wined3d_mutex_unlock();
	}

	return refcount;
	}

	static ULONG WINAPI d3d9_swapchain_Release(IDirect3DSwapChain9Ex *iface)
	{
	struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
	ULONG refcount;

	if (!swapchain->refcount)
	{
	WARN("Swapchain does not have any references.\n");
	return 0;
	}

	refcount = InterlockedDecrement(&swapchain->refcount);
	TRACE("%p decreasing refcount to %u.\n", iface, refcount);

	if (!refcount)
	{
	IDirect3DDevice9Ex *parent_device = swapchain->parent_device;

	wined3d_mutex_lock();
	wined3d_swapchain_decref(swapchain->wined3d_swapchain);
	wined3d_mutex_unlock();

	/* Release the device last, as it may cause the device to be destroyed. */
	if (parent_device)
	IDirect3DDevice9Ex_Release(parent_device);
	}

	return refcount;
	}

	static HRESULT WINAPI DECLSPEC_HOTPATCH d3d9_swapchain_Present(IDirect3DSwapChain9Ex *iface,
	const RECT src_rect, const RECT dst_rect, HWND dst_window_override,
	const RGNDATA *dirty_region, DWORD flags)
	{
	struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
	struct d3d9_device *device = impl_from_IDirect3DDevice9Ex(swapchain->parent_device);
	HRESULT hr;

	TRACE("iface %p, src_rect %s, dst_rect %s, dst_window_override %p, dirty_region %p, flags %#x.\n",
	iface, wine_dbgstr_rect(src_rect), wine_dbgstr_rect(dst_rect),
	dst_window_override, dirty_region, flags);

	if (device->device_state != D3D9_DEVICE_STATE_OK)
	return device->d3d_parent->extended ? S_PRESENT_OCCLUDED : D3DERR_DEVICELOST;

	if (dirty_region)
	FIXME("Ignoring dirty_region %p.\n", dirty_region);

	wined3d_mutex_lock();
	hr = wined3d_swapchain_present(swapchain->wined3d_swapchain,
	src_rect, dst_rect, dst_window_override, flags);
	wined3d_mutex_unlock();

	return hr;
	}

	static HRESULT WINAPI d3d9_swapchain_GetFrontBufferData(IDirect3DSwapChain9Ex iface, IDirect3DSurface9 surface)
	{
	struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
	struct d3d9_surface *dst = unsafe_impl_from_IDirect3DSurface9(surface);
	HRESULT hr;

	TRACE("iface %p, surface %p.\n", iface, surface);

	wined3d_mutex_lock();
	hr = wined3d_swapchain_get_front_buffer_data(swapchain->wined3d_swapchain, dst->wined3d_texture, dst->sub_resource_idx);
	wined3d_mutex_unlock();

	return hr;
	}

	static HRESULT WINAPI d3d9_swapchain_GetBackBuffer(IDirect3DSwapChain9Ex *iface,
	UINT backbuffer_idx, D3DBACKBUFFER_TYPE backbuffer_type, IDirect3DSurface9 **backbuffer)
	{
	struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
	struct wined3d_texture *wined3d_texture;
	struct d3d9_surface *surface_impl;
	HRESULT hr = D3D_OK;

	TRACE("iface %p, backbuffer_idx %u, backbuffer_type %#x, backbuffer %p.\n",
	iface, backbuffer_idx, backbuffer_type, backbuffer);

	/* backbuffer_type is ignored by native. */

	if (!backbuffer)
	{
	WARN("The output pointer is NULL, returning D3DERR_INVALIDCALL.\n");
	return D3DERR_INVALIDCALL;
	}

	wined3d_mutex_lock();
	if ((wined3d_texture = wined3d_swapchain_get_back_buffer(swapchain->wined3d_swapchain, backbuffer_idx)))
	{
	surface_impl = wined3d_texture_get_sub_resource_parent(wined3d_texture, 0);
	*backbuffer = &surface_impl->IDirect3DSurface9_iface;
	IDirect3DSurface9_AddRef(*backbuffer);
	}
	else
	{
	/* Do not set backbuffer = NULL, see tests/device.c, test_swapchain(). /
	hr = D3DERR_INVALIDCALL;
	}
	wined3d_mutex_unlock();

	return hr;
	}

	static HRESULT WINAPI d3d9_swapchain_GetRasterStatus(IDirect3DSwapChain9Ex iface, D3DRASTER_STATUS raster_status)
	{
	struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
	HRESULT hr;

	TRACE("iface %p, raster_status %p.\n", iface, raster_status);

	wined3d_mutex_lock();
	hr = wined3d_swapchain_get_raster_status(swapchain->wined3d_swapchain,
	(struct wined3d_raster_status *)raster_status);
	wined3d_mutex_unlock();

	return hr;
	}

	static HRESULT WINAPI d3d9_swapchain_GetDisplayMode(IDirect3DSwapChain9Ex iface, D3DDISPLAYMODE mode)
	{
	struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
	struct wined3d_display_mode wined3d_mode;
	HRESULT hr;

	TRACE("iface %p, mode %p.\n", iface, mode);

	wined3d_mutex_lock();
	hr = wined3d_swapchain_get_display_mode(swapchain->wined3d_swapchain, &wined3d_mode, NULL);
	wined3d_mutex_unlock();

	if (SUCCEEDED(hr))
	{
	mode->Width = wined3d_mode.width;
	mode->Height = wined3d_mode.height;
	mode->RefreshRate = wined3d_mode.refresh_rate;
	mode->Format = d3dformat_from_wined3dformat(wined3d_mode.format_id);
	}

	return hr;
	}

	static HRESULT WINAPI d3d9_swapchain_GetDevice(IDirect3DSwapChain9Ex iface, IDirect3DDevice9 *device)
	{
	struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);

	TRACE("iface %p, device %p.\n", iface, device);

	device = (IDirect3DDevice9 )swapchain->parent_device;
	IDirect3DDevice9_AddRef(*device);

	TRACE("Returning device %p.\n", *device);

	return D3D_OK;
	}

	static HRESULT WINAPI d3d9_swapchain_GetPresentParameters(IDirect3DSwapChain9Ex *iface,
	D3DPRESENT_PARAMETERS *parameters)
	{
	struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
	struct wined3d_swapchain_desc desc;

	TRACE("iface %p, parameters %p.\n", iface, parameters);

	wined3d_mutex_lock();
	wined3d_swapchain_get_desc(swapchain->wined3d_swapchain, &desc);
	wined3d_mutex_unlock();
	present_parameters_from_wined3d_swapchain_desc(parameters, &desc);

	return D3D_OK;
	}

	static HRESULT WINAPI d3d9_swapchain_GetLastPresentCount(IDirect3DSwapChain9Ex *iface,
	UINT *last_present_count)
	{
	FIXME("iface %p, last_present_count %p, stub!\n", iface, last_present_count);

	if (last_present_count)
	*last_present_count = 0;

	return D3D_OK;
	}

	static HRESULT WINAPI d3d9_swapchain_GetPresentStatistics(IDirect3DSwapChain9Ex *iface,
	D3DPRESENTSTATS *present_stats)
	{
	FIXME("iface %p, present_stats %p, stub!\n", iface, present_stats);

	if (present_stats)
	memset(present_stats, 0, sizeof(*present_stats));

	return D3D_OK;
	}

	static HRESULT WINAPI d3d9_swapchain_GetDisplayModeEx(IDirect3DSwapChain9Ex *iface,
	D3DDISPLAYMODEEX mode, D3DDISPLAYROTATION rotation)
	{
	struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
	struct wined3d_display_mode wined3d_mode;
	HRESULT hr;

	TRACE("iface %p, mode %p, rotation %p.\n", iface, mode, rotation);

	if (mode->Size != sizeof(*mode))
	return D3DERR_INVALIDCALL;

	wined3d_mutex_lock();
	hr = wined3d_swapchain_get_display_mode(swapchain->wined3d_swapchain, &wined3d_mode,
	(enum wined3d_display_rotation *)rotation);
	wined3d_mutex_unlock();

	if (SUCCEEDED(hr))
	{
	mode->Width = wined3d_mode.width;
	mode->Height = wined3d_mode.height;
	mode->RefreshRate = wined3d_mode.refresh_rate;
	mode->Format = d3dformat_from_wined3dformat(wined3d_mode.format_id);
	mode->ScanLineOrdering = wined3d_mode.scanline_ordering;
	}

	return hr;
	}

	static const struct IDirect3DSwapChain9ExVtbl d3d9_swapchain_vtbl =
	{
	/* IUnknown */
	d3d9_swapchain_QueryInterface,
	d3d9_swapchain_AddRef,
	d3d9_swapchain_Release,
	/* IDirect3DSwapChain9 */
	d3d9_swapchain_Present,
	d3d9_swapchain_GetFrontBufferData,
	d3d9_swapchain_GetBackBuffer,
	d3d9_swapchain_GetRasterStatus,
	d3d9_swapchain_GetDisplayMode,
	d3d9_swapchain_GetDevice,
	d3d9_swapchain_GetPresentParameters,
	/* IDirect3DSwapChain9Ex */
	d3d9_swapchain_GetLastPresentCount,
	d3d9_swapchain_GetPresentStatistics,
	d3d9_swapchain_GetDisplayModeEx
	};

	static void STDMETHODCALLTYPE d3d9_swapchain_wined3d_object_released(void *parent)
	{
	HeapFree(GetProcessHeap(), 0, parent);
	}

	static const struct wined3d_parent_ops d3d9_swapchain_wined3d_parent_ops =
	{
	d3d9_swapchain_wined3d_object_released,
	};

	static HRESULT swapchain_init(struct d3d9_swapchain swapchain, struct d3d9_device device,
	struct wined3d_swapchain_desc *desc)
	{
	HRESULT hr;

	swapchain->refcount = 1;
	swapchain->IDirect3DSwapChain9Ex_iface.lpVtbl = &d3d9_swapchain_vtbl;

	wined3d_mutex_lock();
	hr = wined3d_swapchain_create(device->wined3d_device, desc, swapchain,
	&d3d9_swapchain_wined3d_parent_ops, &swapchain->wined3d_swapchain);
	wined3d_mutex_unlock();

	if (FAILED(hr))
	{
	WARN("Failed to create wined3d swapchain, hr %#x.\n", hr);
	return hr;
	}

	swapchain->parent_device = &device->IDirect3DDevice9Ex_iface;
	IDirect3DDevice9Ex_AddRef(swapchain->parent_device);

	return D3D_OK;
	}

	HRESULT d3d9_swapchain_create(struct d3d9_device device, struct wined3d_swapchain_desc desc,
	struct d3d9_swapchain **swapchain)
	{
	struct d3d9_swapchain *object;
	HRESULT hr;

	if (!(object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object))))
	return E_OUTOFMEMORY;

	if (FAILED(hr = swapchain_init(object, device, desc)))
	{
	WARN("Failed to initialize swapchain, hr %#x.\n", hr);
	HeapFree(GetProcessHeap(), 0, object);
	return hr;
	}

	TRACE("Created swapchain %p.\n", object);
	*swapchain = object;

	return D3D_OK;
	}