surface.c

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/* DirectDraw Surface Implementation
 *
 * Copyright (c) 1997-2000 Marcus Meissner
 * Copyright (c) 1998-2000 Lionel Ulmer
 * Copyright (c) 2000-2001 TransGaming Technologies Inc.
 * Copyright (c) 2006 Stefan Dösinger
 * Copyright (c) 2011 Ričardas Barkauskas for CodeWeavers
 *
 * 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 "wine/port.h"
 
#include "ddraw_private.h"
 
WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
 
static struct ddraw_surface *unsafe_impl_from_IDirectDrawSurface2(IDirectDrawSurface2 *iface);
static struct ddraw_surface *unsafe_impl_from_IDirectDrawSurface3(IDirectDrawSurface3 *iface);
 
static inline struct ddraw_surface *impl_from_IDirectDrawGammaControl(IDirectDrawGammaControl *iface)
{
    return CONTAINING_RECORD(iface, struct ddraw_surface, IDirectDrawGammaControl_iface);
}
 
/* This is slow, of course. Also, in case of locks, we can't prevent other
 * applications from drawing to the screen while we've locked the frontbuffer.
 * We'd like to do this in wined3d instead, but for that to work wined3d needs
 * to support windowless rendering first. */
HRESULT ddraw_surface_update_frontbuffer(struct ddraw_surface *surface, const RECT *rect, BOOL read, unsigned int swap_interval)
{
    struct wined3d_texture *dst_texture;
    struct ddraw *ddraw = surface->ddraw;
    HDC surface_dc, screen_dc;
    int x, y, w, h;
    HRESULT hr;
    BOOL ret;
    RECT r;
 
    if (!rect)
    {
        SetRect(&r, 0, 0, surface->surface_desc.dwWidth, surface->surface_desc.dwHeight);
        rect = &r;
    }
 
    x = rect->left;
    y = rect->top;
    w = rect->right - rect->left;
    h = rect->bottom - rect->top;
 
    if (w <= 0 || h <= 0)
        return DD_OK;
 
    if (ddraw->swapchain_window && !(ddraw->flags & DDRAW_GDI_FLIP))
    {
        /* Nothing to do, we control the frontbuffer, or at least the parts we
         * care about. */
        if (read)
            return DD_OK;
 
        if (swap_interval)
            dst_texture = wined3d_swapchain_get_back_buffer(ddraw->wined3d_swapchain, 0);
        else
            dst_texture = ddraw->wined3d_frontbuffer;
 
        if (SUCCEEDED(hr = wined3d_texture_blt(dst_texture, 0, rect,
                surface->wined3d_texture, surface->sub_resource_idx, rect, 0, NULL, WINED3D_TEXF_POINT))){
            hr = wined3d_swapchain_present(ddraw->wined3d_swapchain, rect, rect, NULL, swap_interval, 0);
            ddraw->flags |= DDRAW_GDI_FLIP;
        }
 
        return hr;
    }
 
    if (FAILED(hr = wined3d_texture_get_dc(surface->wined3d_texture, surface->sub_resource_idx, &surface_dc)))
    {
        ERR("Failed to get surface DC, hr %#x.\n", hr);
        return hr;
    }
    if (surface->palette)
        wined3d_palette_apply_to_dc(surface->palette->wined3d_palette, surface_dc);
 
    if (!(screen_dc = GetDC(NULL)))
    {
        wined3d_texture_release_dc(surface->wined3d_texture, surface->sub_resource_idx, surface_dc);
        ERR("Failed to get screen DC.\n");
        return E_FAIL;
    }
 
    if (read)
        ret = BitBlt(surface_dc, x, y, w, h,
                screen_dc, x, y, SRCCOPY);
    else
        ret = BitBlt(screen_dc, x, y, w, h,
                surface_dc, x, y, SRCCOPY);
 
    ReleaseDC(NULL, screen_dc);
    wined3d_texture_release_dc(surface->wined3d_texture, surface->sub_resource_idx, surface_dc);
 
    if (!ret)
    {
        ERR("Failed to blit to/from screen.\n");
        return E_FAIL;
    }
 
    return DD_OK;
}
 
/*****************************************************************************
 * IUnknown parts follow
 *****************************************************************************/
 
/*****************************************************************************
 * IDirectDrawSurface7::QueryInterface
 *
 * A normal QueryInterface implementation. For QueryInterface rules
 * see ddraw.c, IDirectDraw7::QueryInterface. This method
 * can Query IDirectDrawSurface interfaces in all version, IDirect3DTexture
 * in all versions, the IDirectDrawGammaControl interface and it can
 * create an IDirect3DDevice. (Uses IDirect3D7::CreateDevice)
 *
 * Params:
 *  riid: The interface id queried for
 *  obj: Address to write the pointer to
 *
 * Returns:
 *  S_OK on success
 *  E_NOINTERFACE if the requested interface wasn't found
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_QueryInterface(IDirectDrawSurface7 *iface, REFIID riid, void **obj)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface7(iface);
 
    TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), obj);
 
    /* According to COM docs, if the QueryInterface fails, obj should be set to NULL */
    *obj = NULL;
 
    if(!riid)
        return DDERR_INVALIDPARAMS;
 
    if (IsEqualGUID(riid, &IID_IDirectDrawSurface7))
    {
        IDirectDrawSurface7_AddRef(iface);
        *obj = iface;
        TRACE("(%p) returning IDirectDrawSurface7 interface at %p\n", This, *obj);
        return S_OK;
    }
 
    if (IsEqualGUID(riid, &IID_IDirectDrawSurface4))
    {
        IDirectDrawSurface4_AddRef(&This->IDirectDrawSurface4_iface);
        *obj = &This->IDirectDrawSurface4_iface;
        TRACE("(%p) returning IDirectDrawSurface4 interface at %p\n", This, *obj);
        return S_OK;
    }
 
    if (IsEqualGUID(riid, &IID_IDirectDrawSurface3))
    {
        IDirectDrawSurface3_AddRef(&This->IDirectDrawSurface3_iface);
        *obj = &This->IDirectDrawSurface3_iface;
        TRACE("(%p) returning IDirectDrawSurface3 interface at %p\n", This, *obj);
        return S_OK;
    }
 
    if (IsEqualGUID(riid, &IID_IDirectDrawSurface2))
    {
        IDirectDrawSurface2_AddRef(&This->IDirectDrawSurface2_iface);
        *obj = &This->IDirectDrawSurface2_iface;
        TRACE("(%p) returning IDirectDrawSurface2 interface at %p\n", This, *obj);
        return S_OK;
    }
 
    if (IsEqualGUID(riid, &IID_IDirectDrawSurface)
            || IsEqualGUID(riid, &IID_IUnknown))
    {
        IDirectDrawSurface_AddRef(&This->IDirectDrawSurface_iface);
        *obj = &This->IDirectDrawSurface_iface;
        TRACE("(%p) returning IDirectDrawSurface interface at %p\n", This, *obj);
        return S_OK;
    }
 
    if (IsEqualGUID(riid, &IID_IDirectDrawGammaControl))
    {
        IDirectDrawGammaControl_AddRef(&This->IDirectDrawGammaControl_iface);
        *obj = &This->IDirectDrawGammaControl_iface;
        TRACE("(%p) returning IDirectDrawGammaControl interface at %p\n", This, *obj);
        return S_OK;
    }
 
    if (IsEqualGUID(riid, &IID_IDirectDrawColorControl))
    {
        WARN("Color control not implemented.\n");
        *obj = NULL;
        return E_NOINTERFACE;
    }
 
    if (This->version != 7)
    {
        if (IsEqualGUID(riid, &IID_D3DDEVICE_WineD3D)
                || IsEqualGUID(riid, &IID_IDirect3DHALDevice)
                || IsEqualGUID(riid, &IID_IDirect3DRGBDevice))
        {
            wined3d_mutex_lock();
            if (!This->device1)
            {
                HRESULT hr;
 
                if (FAILED(hr = d3d_device_create(This->ddraw, riid, This, (IUnknown *)&This->IDirectDrawSurface_iface,
                        1, &This->device1, (IUnknown *)&This->IDirectDrawSurface_iface)))
                {
                    This->device1 = NULL;
                    wined3d_mutex_unlock();
                    WARN("Failed to create device, hr %#x.\n", hr);
                    return hr;
                }
            }
            wined3d_mutex_unlock();
 
            IDirect3DDevice_AddRef(&This->device1->IDirect3DDevice_iface);
            *obj = &This->device1->IDirect3DDevice_iface;
            return S_OK;
        }
 
        if (IsEqualGUID(&IID_IDirect3DTexture2, riid))
        {
            IDirect3DTexture2_AddRef(&This->IDirect3DTexture2_iface);
            *obj = &This->IDirect3DTexture2_iface;
            return S_OK;
        }
 
        if (IsEqualGUID( &IID_IDirect3DTexture, riid ))
        {
            IDirect3DTexture2_AddRef(&This->IDirect3DTexture_iface);
            *obj = &This->IDirect3DTexture_iface;
            return S_OK;
        }
    }
 
    WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));
 
    if (This->version != 7)
        return E_INVALIDARG;
 
    return E_NOINTERFACE;
}
 
static HRESULT WINAPI ddraw_surface4_QueryInterface(IDirectDrawSurface4 *iface, REFIID riid, void **object)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
 
    return ddraw_surface7_QueryInterface(&surface->IDirectDrawSurface7_iface, riid, object);
}
 
static HRESULT WINAPI ddraw_surface3_QueryInterface(IDirectDrawSurface3 *iface, REFIID riid, void **object)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
 
    return ddraw_surface7_QueryInterface(&surface->IDirectDrawSurface7_iface, riid, object);
}
 
static HRESULT WINAPI ddraw_surface2_QueryInterface(IDirectDrawSurface2 *iface, REFIID riid, void **object)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
 
    return ddraw_surface7_QueryInterface(&surface->IDirectDrawSurface7_iface, riid, object);
}
 
static HRESULT WINAPI ddraw_surface1_QueryInterface(IDirectDrawSurface *iface, REFIID riid, void **object)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
 
    return ddraw_surface7_QueryInterface(&surface->IDirectDrawSurface7_iface, riid, object);
}
 
static HRESULT WINAPI ddraw_gamma_control_QueryInterface(IDirectDrawGammaControl *iface,
        REFIID riid, void **object)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawGammaControl(iface);
 
    TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
 
    return ddraw_surface7_QueryInterface(&surface->IDirectDrawSurface7_iface, riid, object);
}
 
static HRESULT WINAPI d3d_texture2_QueryInterface(IDirect3DTexture2 *iface, REFIID riid, void **object)
{
    struct ddraw_surface *surface = impl_from_IDirect3DTexture2(iface);
 
    TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
 
    return ddraw_surface7_QueryInterface(&surface->IDirectDrawSurface7_iface, riid, object);
}
 
static HRESULT WINAPI d3d_texture1_QueryInterface(IDirect3DTexture *iface, REFIID riid, void **object)
{
    struct ddraw_surface *surface = impl_from_IDirect3DTexture(iface);
 
    TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
 
    return ddraw_surface7_QueryInterface(&surface->IDirectDrawSurface7_iface, riid, object);
}
 
static void ddraw_surface_add_iface(struct ddraw_surface *surface)
{
    ULONG iface_count = InterlockedIncrement(&surface->iface_count);
    TRACE("%p increasing iface count to %u.\n", surface, iface_count);
 
    if (iface_count == 1)
    {
        if (surface->ifaceToRelease)
            IUnknown_AddRef(surface->ifaceToRelease);
        wined3d_mutex_lock();
        if (surface->wined3d_rtv)
            wined3d_rendertarget_view_incref(surface->wined3d_rtv);
        wined3d_texture_incref(surface->wined3d_texture);
        wined3d_mutex_unlock();
    }
}
 
/*****************************************************************************
 * IDirectDrawSurface7::AddRef
 *
 * A normal addref implementation
 *
 * Returns:
 *  The new refcount
 *
 *****************************************************************************/
static ULONG WINAPI ddraw_surface7_AddRef(IDirectDrawSurface7 *iface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface7(iface);
    ULONG refcount = InterlockedIncrement(&This->ref7);
 
    TRACE("iface %p increasing refcount to %u.\n", iface, refcount);
 
    if (refcount == 1)
    {
        ddraw_surface_add_iface(This);
    }
 
    return refcount;
}
 
static ULONG WINAPI ddraw_surface4_AddRef(IDirectDrawSurface4 *iface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface4(iface);
    ULONG refcount = InterlockedIncrement(&This->ref4);
 
    TRACE("iface %p increasing refcount to %u.\n", iface, refcount);
 
    if (refcount == 1)
    {
        ddraw_surface_add_iface(This);
    }
 
    return refcount;
}
 
static ULONG WINAPI ddraw_surface3_AddRef(IDirectDrawSurface3 *iface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface3(iface);
    ULONG refcount = InterlockedIncrement(&This->ref3);
 
    TRACE("iface %p increasing refcount to %u.\n", iface, refcount);
 
    if (refcount == 1)
    {
        ddraw_surface_add_iface(This);
    }
 
    return refcount;
}
 
static ULONG WINAPI ddraw_surface2_AddRef(IDirectDrawSurface2 *iface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface2(iface);
    ULONG refcount = InterlockedIncrement(&This->ref2);
 
    TRACE("iface %p increasing refcount to %u.\n", iface, refcount);
 
    if (refcount == 1)
    {
        ddraw_surface_add_iface(This);
    }
 
    return refcount;
}
 
static ULONG WINAPI ddraw_surface1_AddRef(IDirectDrawSurface *iface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface(iface);
    ULONG refcount = InterlockedIncrement(&This->ref1);
 
    TRACE("iface %p increasing refcount to %u.\n", iface, refcount);
 
    if (refcount == 1)
    {
        ddraw_surface_add_iface(This);
    }
 
    return refcount;
}
 
static ULONG WINAPI ddraw_gamma_control_AddRef(IDirectDrawGammaControl *iface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawGammaControl(iface);
    ULONG refcount = InterlockedIncrement(&This->gamma_count);
 
    TRACE("iface %p increasing refcount to %u.\n", iface, refcount);
 
    if (refcount == 1)
    {
        ddraw_surface_add_iface(This);
    }
 
    return refcount;
}
 
static ULONG WINAPI d3d_texture2_AddRef(IDirect3DTexture2 *iface)
{
    struct ddraw_surface *surface = impl_from_IDirect3DTexture2(iface);
 
    TRACE("iface %p.\n", iface);
 
    return IUnknown_AddRef(surface->texture_outer);
}
 
static ULONG WINAPI d3d_texture1_AddRef(IDirect3DTexture *iface)
{
    struct ddraw_surface *surface = impl_from_IDirect3DTexture(iface);
 
    TRACE("iface %p.\n", iface);
 
    return IUnknown_AddRef(surface->texture_outer);
}
 
static HRESULT ddraw_surface_set_palette(struct ddraw_surface *surface, IDirectDrawPalette *palette)
{
    struct ddraw_palette *palette_impl = unsafe_impl_from_IDirectDrawPalette(palette);
    struct ddraw_palette *prev;
 
    TRACE("iface %p, palette %p.\n", surface, palette);
 
    if (palette_impl && palette_impl->flags & DDPCAPS_ALPHA
            && !(surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_TEXTURE))
    {
        WARN("Alpha palette set on non-texture surface, returning DDERR_INVALIDSURFACETYPE.\n");
        return DDERR_INVALIDSURFACETYPE;
    }
 
    if (!format_is_paletteindexed(&surface->surface_desc.u4.ddpfPixelFormat))
        return DDERR_INVALIDPIXELFORMAT;
 
    wined3d_mutex_lock();
 
    prev = surface->palette;
    if (surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
    {
        if (prev)
            prev->flags &= ~DDPCAPS_PRIMARYSURFACE;
        if (palette_impl)
            palette_impl->flags |= DDPCAPS_PRIMARYSURFACE;
        wined3d_swapchain_set_palette(surface->ddraw->wined3d_swapchain,
                palette_impl ? palette_impl->wined3d_palette : NULL);
        ddraw_surface_update_frontbuffer(surface, NULL, FALSE, 0);
    }
    if (palette_impl)
        IDirectDrawPalette_AddRef(&palette_impl->IDirectDrawPalette_iface);
    if (prev)
        IDirectDrawPalette_Release(&prev->IDirectDrawPalette_iface);
    surface->palette = palette_impl;
 
    wined3d_mutex_unlock();
 
    return DD_OK;
}
 
static void ddraw_surface_cleanup(struct ddraw_surface *surface)
{
    struct ddraw_surface *surf;
    UINT i;
 
    TRACE("surface %p.\n", surface);
 
    /* The refcount test shows that the palette is detached when the surface
     * is destroyed. */
    ddraw_surface_set_palette(surface, NULL);
 
    /* Loop through all complex attached surfaces and destroy them.
     *
     * Yet again, only the root can have more than one complexly attached
     * surface, all the others have a total of one. */
    for (i = 0; i < MAX_COMPLEX_ATTACHED; ++i)
    {
        if (!surface->complex_array[i])
            break;
 
        surf = surface->complex_array[i];
        surface->complex_array[i] = NULL;
        if (!surf->is_complex_root)
            ddraw_surface_cleanup(surf);
    }
 
    if (surface->device1)
        IUnknown_Release(&surface->device1->IUnknown_inner);
 
    if (surface->iface_count > 1)
    {
        /* This can happen when a complex surface is destroyed, because the
         * 2nd surface was addref()ed when the app called
         * GetAttachedSurface(). */
        WARN("Destroying surface %p with refcounts 7: %u 4: %u 3: %u 2: %u 1: %u.\n",
                surface, surface->ref7, surface->ref4, surface->ref3, surface->ref2, surface->ref1);
    }
 
    if (surface->wined3d_rtv)
        wined3d_rendertarget_view_decref(surface->wined3d_rtv);
    wined3d_texture_decref(surface->wined3d_texture);
}
 
static ULONG ddraw_surface_release_iface(struct ddraw_surface *This)
{
    ULONG iface_count;
 
    /* Prevent the surface from being destroyed if it's still attached to
     * another surface. It will be destroyed when the root is destroyed. */
    if (This->iface_count == 1 && This->attached_iface)
        IUnknown_AddRef(This->attached_iface);
    iface_count = InterlockedDecrement(&This->iface_count);
 
    TRACE("%p decreasing iface count to %u.\n", This, iface_count);
 
    if (iface_count == 0)
    {
        struct ddraw_texture *texture = wined3d_texture_get_parent(This->wined3d_texture);
        struct wined3d_device *wined3d_device = texture->wined3d_device;
        IUnknown *release_iface = This->ifaceToRelease;
 
        /* Complex attached surfaces are destroyed implicitly when the root is released */
        wined3d_mutex_lock();
        if(!This->is_complex_root)
        {
            WARN("(%p) Attempt to destroy a surface that is not a complex root\n", This);
            wined3d_mutex_unlock();
            return iface_count;
        }
        ddraw_surface_cleanup(This);
        wined3d_mutex_unlock();
 
        if (release_iface)
            IUnknown_Release(release_iface);
        /* Release the device only after anything that may reference it (the
         * wined3d texture and rendertarget view in particular) is released. */
        wined3d_device_decref(wined3d_device);
    }
 
    return iface_count;
}
 
/*****************************************************************************
 * IDirectDrawSurface7::Release
 *
 * Reduces the surface's refcount by 1. If the refcount falls to 0, the
 * surface is destroyed.
 *
 * Destroying the surface is a bit tricky. For the connection between
 * WineD3DSurfaces and DirectDrawSurfaces see IDirectDraw7::CreateSurface
 * It has a nice graph explaining the connection.
 *
 * What happens here is basically this:
 * When a surface is destroyed, its WineD3DSurface is released,
 * and the refcount of the DirectDraw interface is reduced by 1. If it has
 * complex surfaces attached to it, then these surfaces are destroyed too,
 * regardless of their refcount. If any surface being destroyed has another
 * surface attached to it (with a "soft" attachment, not complex), then
 * this surface is detached with DeleteAttachedSurface.
 *
 * When the surface is a texture, the WineD3DTexture is released.
 * If the surface is the Direct3D render target, then the D3D
 * capabilities of the WineD3DDevice are uninitialized, which causes the
 * swapchain to be released.
 *
 * When a complex sublevel falls to ref zero, then this is ignored.
 *
 * Returns:
 *  The new refcount
 *
 *****************************************************************************/
static ULONG WINAPI ddraw_surface7_Release(IDirectDrawSurface7 *iface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface7(iface);
    ULONG refcount = InterlockedDecrement(&This->ref7);
 
    TRACE("iface %p decreasing refcount to %u.\n", iface, refcount);
 
    if (refcount == 0)
    {
        ddraw_surface_release_iface(This);
    }
 
    return refcount;
}
 
static ULONG WINAPI ddraw_surface4_Release(IDirectDrawSurface4 *iface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface4(iface);
    ULONG refcount = InterlockedDecrement(&This->ref4);
 
    TRACE("iface %p decreasing refcount to %u.\n", iface, refcount);
 
    if (refcount == 0)
    {
        ddraw_surface_release_iface(This);
    }
 
    return refcount;
}
 
static ULONG WINAPI ddraw_surface3_Release(IDirectDrawSurface3 *iface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface3(iface);
    ULONG refcount = InterlockedDecrement(&This->ref3);
 
    TRACE("iface %p decreasing refcount to %u.\n", iface, refcount);
 
    if (refcount == 0)
    {
        ddraw_surface_release_iface(This);
    }
 
    return refcount;
}
 
static ULONG WINAPI ddraw_surface2_Release(IDirectDrawSurface2 *iface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface2(iface);
    ULONG refcount = InterlockedDecrement(&This->ref2);
 
    TRACE("iface %p decreasing refcount to %u.\n", iface, refcount);
 
    if (refcount == 0)
    {
        ddraw_surface_release_iface(This);
    }
 
    return refcount;
}
 
static ULONG WINAPI ddraw_surface1_Release(IDirectDrawSurface *iface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface(iface);
    ULONG refcount = InterlockedDecrement(&This->ref1);
 
    TRACE("iface %p decreasing refcount to %u.\n", iface, refcount);
 
    if (refcount == 0)
    {
        ddraw_surface_release_iface(This);
    }
 
    return refcount;
}
 
static ULONG WINAPI ddraw_gamma_control_Release(IDirectDrawGammaControl *iface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawGammaControl(iface);
    ULONG refcount = InterlockedDecrement(&This->gamma_count);
 
    TRACE("iface %p decreasing refcount to %u.\n", iface, refcount);
 
    if (refcount == 0)
    {
        ddraw_surface_release_iface(This);
    }
 
    return refcount;
}
 
static ULONG WINAPI d3d_texture2_Release(IDirect3DTexture2 *iface)
{
    struct ddraw_surface *surface = impl_from_IDirect3DTexture2(iface);
 
    TRACE("iface %p.\n", iface);
 
    return IUnknown_Release(surface->texture_outer);
}
 
static ULONG WINAPI d3d_texture1_Release(IDirect3DTexture *iface)
{
    struct ddraw_surface *surface = impl_from_IDirect3DTexture(iface);
 
    TRACE("iface %p.\n", iface);
 
    return IUnknown_Release(surface->texture_outer);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::GetAttachedSurface
 *
 * Returns an attached surface with the requested caps. Surface attachment
 * and complex surfaces are not clearly described by the MSDN or sdk,
 * so this method is tricky and likely to contain problems.
 * This implementation searches the complex list first, then the
 * attachment chain.
 *
 * The chains are searched from This down to the last surface in the chain,
 * not from the first element in the chain. The first surface found is
 * returned. The MSDN says that this method fails if more than one surface
 * matches the caps, but it is not sure if that is right. The attachment
 * structure may not even allow two matching surfaces.
 *
 * The found surface is AddRef-ed before it is returned.
 *
 * Params:
 *  Caps: Pointer to a DDCAPS2 structure describing the caps asked for
 *  Surface: Address to store the found surface
 *
 * Returns:
 *  DD_OK on success
 *  DDERR_INVALIDPARAMS if Caps or Surface is NULL
 *  DDERR_NOTFOUND if no surface was found
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_GetAttachedSurface(IDirectDrawSurface7 *iface,
        DDSCAPS2 *Caps, IDirectDrawSurface7 **Surface)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface7(iface);
    struct ddraw_surface *surf;
    DDSCAPS2 our_caps;
    int i;
 
    TRACE("iface %p, caps %p, attachment %p.\n", iface, Caps, Surface);
 
    wined3d_mutex_lock();
 
    if(This->version < 7)
    {
        /* Earlier dx apps put garbage into these members, clear them */
        our_caps.dwCaps = Caps->dwCaps;
        our_caps.dwCaps2 = 0;
        our_caps.dwCaps3 = 0;
        our_caps.u1.dwCaps4 = 0;
    }
    else
    {
        our_caps = *Caps;
    }
 
    TRACE("(%p): Looking for caps: %x,%x,%x,%x\n", This, our_caps.dwCaps, our_caps.dwCaps2, our_caps.dwCaps3, our_caps.u1.dwCaps4); /* FIXME: Better debugging */
 
    for(i = 0; i < MAX_COMPLEX_ATTACHED; i++)
    {
        surf = This->complex_array[i];
        if(!surf) break;
 
        TRACE("Surface: (%p) caps: %#x, %#x, %#x, %#x.\n", surf,
                surf->surface_desc.ddsCaps.dwCaps,
                surf->surface_desc.ddsCaps.dwCaps2,
                surf->surface_desc.ddsCaps.dwCaps3,
                surf->surface_desc.ddsCaps.u1.dwCaps4);
 
        if (((surf->surface_desc.ddsCaps.dwCaps & our_caps.dwCaps) == our_caps.dwCaps) &&
            ((surf->surface_desc.ddsCaps.dwCaps2 & our_caps.dwCaps2) == our_caps.dwCaps2)) {
 
            /* MSDN: "This method fails if more than one surface is attached
             * that matches the capabilities requested."
             *
             * Not sure how to test this.
             */
 
            TRACE("(%p): Returning surface %p\n", This, surf);
            *Surface = &surf->IDirectDrawSurface7_iface;
            ddraw_surface7_AddRef(*Surface);
            wined3d_mutex_unlock();
 
            return DD_OK;
        }
    }
 
    /* Next, look at the attachment chain */
    surf = This;
 
    while( (surf = surf->next_attached) )
    {
        TRACE("Surface: (%p) caps: %#x, %#x, %#x, %#x.\n", surf,
                surf->surface_desc.ddsCaps.dwCaps,
                surf->surface_desc.ddsCaps.dwCaps2,
                surf->surface_desc.ddsCaps.dwCaps3,
                surf->surface_desc.ddsCaps.u1.dwCaps4);
 
        if (((surf->surface_desc.ddsCaps.dwCaps & our_caps.dwCaps) == our_caps.dwCaps) &&
            ((surf->surface_desc.ddsCaps.dwCaps2 & our_caps.dwCaps2) == our_caps.dwCaps2)) {
 
            TRACE("(%p): Returning surface %p\n", This, surf);
            *Surface = &surf->IDirectDrawSurface7_iface;
            ddraw_surface7_AddRef(*Surface);
            wined3d_mutex_unlock();
            return DD_OK;
        }
    }
 
    TRACE("(%p) Didn't find a valid surface\n", This);
 
    wined3d_mutex_unlock();
 
    *Surface = NULL;
    return DDERR_NOTFOUND;
}
 
static HRESULT WINAPI ddraw_surface4_GetAttachedSurface(IDirectDrawSurface4 *iface,
        DDSCAPS2 *caps, IDirectDrawSurface4 **attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
    struct ddraw_surface *attachment_impl;
    IDirectDrawSurface7 *attachment7;
    HRESULT hr;
 
    TRACE("iface %p, caps %p, attachment %p.\n", iface, caps, attachment);
 
    hr = ddraw_surface7_GetAttachedSurface(&surface->IDirectDrawSurface7_iface,
            caps, &attachment7);
    if (FAILED(hr))
    {
        *attachment = NULL;
        return hr;
    }
    attachment_impl = impl_from_IDirectDrawSurface7(attachment7);
    *attachment = &attachment_impl->IDirectDrawSurface4_iface;
    ddraw_surface4_AddRef(*attachment);
    ddraw_surface7_Release(attachment7);
 
    return hr;
}
 
static HRESULT WINAPI ddraw_surface3_GetAttachedSurface(IDirectDrawSurface3 *iface,
        DDSCAPS *caps, IDirectDrawSurface3 **attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
    struct ddraw_surface *attachment_impl;
    IDirectDrawSurface7 *attachment7;
    DDSCAPS2 caps2;
    HRESULT hr;
 
    TRACE("iface %p, caps %p, attachment %p.\n", iface, caps, attachment);
 
    caps2.dwCaps  = caps->dwCaps;
    caps2.dwCaps2 = 0;
    caps2.dwCaps3 = 0;
    caps2.u1.dwCaps4 = 0;
 
    hr = ddraw_surface7_GetAttachedSurface(&surface->IDirectDrawSurface7_iface,
            &caps2, &attachment7);
    if (FAILED(hr))
    {
        *attachment = NULL;
        return hr;
    }
    attachment_impl = impl_from_IDirectDrawSurface7(attachment7);
    *attachment = &attachment_impl->IDirectDrawSurface3_iface;
    ddraw_surface3_AddRef(*attachment);
    ddraw_surface7_Release(attachment7);
 
    return hr;
}
 
static HRESULT WINAPI ddraw_surface2_GetAttachedSurface(IDirectDrawSurface2 *iface,
        DDSCAPS *caps, IDirectDrawSurface2 **attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
    struct ddraw_surface *attachment_impl;
    IDirectDrawSurface7 *attachment7;
    DDSCAPS2 caps2;
    HRESULT hr;
 
    TRACE("iface %p, caps %p, attachment %p.\n", iface, caps, attachment);
 
    caps2.dwCaps  = caps->dwCaps;
    caps2.dwCaps2 = 0;
    caps2.dwCaps3 = 0;
    caps2.u1.dwCaps4 = 0;
 
    hr = ddraw_surface7_GetAttachedSurface(&surface->IDirectDrawSurface7_iface,
            &caps2, &attachment7);
    if (FAILED(hr))
    {
        *attachment = NULL;
        return hr;
    }
    attachment_impl = impl_from_IDirectDrawSurface7(attachment7);
    *attachment = &attachment_impl->IDirectDrawSurface2_iface;
    ddraw_surface2_AddRef(*attachment);
    ddraw_surface7_Release(attachment7);
 
    return hr;
}
 
static HRESULT WINAPI ddraw_surface1_GetAttachedSurface(IDirectDrawSurface *iface,
        DDSCAPS *caps, IDirectDrawSurface **attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
    struct ddraw_surface *attachment_impl;
    IDirectDrawSurface7 *attachment7;
    DDSCAPS2 caps2;
    HRESULT hr;
 
    TRACE("iface %p, caps %p, attachment %p.\n", iface, caps, attachment);
 
    caps2.dwCaps  = caps->dwCaps;
    caps2.dwCaps2 = 0;
    caps2.dwCaps3 = 0;
    caps2.u1.dwCaps4 = 0;
 
    hr = ddraw_surface7_GetAttachedSurface(&surface->IDirectDrawSurface7_iface,
            &caps2, &attachment7);
    if (FAILED(hr))
    {
        *attachment = NULL;
        return hr;
    }
    attachment_impl = impl_from_IDirectDrawSurface7(attachment7);
    *attachment = &attachment_impl->IDirectDrawSurface_iface;
    ddraw_surface1_AddRef(*attachment);
    ddraw_surface7_Release(attachment7);
 
    return hr;
}
 
/*****************************************************************************
 * IDirectDrawSurface7::Lock
 *
 * Locks the surface and returns a pointer to the surface's memory
 *
 * Params:
 *  Rect: Rectangle to lock. If NULL, the whole surface is locked
 *  DDSD: Pointer to a DDSURFACEDESC2 which shall receive the surface's desc.
 *  Flags: Locking flags, e.g Read only or write only
 *  h: An event handle that's not used and must be NULL
 *
 * Returns:
 *  DD_OK on success
 *  DDERR_INVALIDPARAMS if DDSD is NULL
 *
 *****************************************************************************/
static HRESULT surface_lock(struct ddraw_surface *surface,
        RECT *rect, DDSURFACEDESC2 *surface_desc, unsigned int surface_desc_size,
        DWORD flags, HANDLE h)
{
    struct wined3d_map_desc map_desc;
    struct wined3d_box box;
    HRESULT hr = DD_OK;
 
    TRACE("surface %p, rect %s, surface_desc %p, surface_desc_size %u, flags %#x, h %p.\n",
            surface, wine_dbgstr_rect(rect), surface_desc, surface_desc_size, flags, h);
 
    /* surface->surface_desc.dwWidth and dwHeight are changeable, thus lock */
    wined3d_mutex_lock();
 
    /* Should I check for the handle to be NULL?
     *
     * The DDLOCK flags and the D3DLOCK flags are equal
     * for the supported values. The others are ignored by WineD3D
     */
 
    /* Windows zeroes this if the rect is invalid */
    surface_desc->lpSurface = NULL;
 
    if (rect)
    {
        if ((rect->left < 0) || (rect->top < 0)
                || (rect->left > rect->right) || (rect->right > surface->surface_desc.dwWidth)
                || (rect->top > rect->bottom) || (rect->bottom > surface->surface_desc.dwHeight))
        {
            WARN("Trying to lock an invalid rectangle, returning DDERR_INVALIDPARAMS\n");
            wined3d_mutex_unlock();
            return DDERR_INVALIDPARAMS;
        }
        wined3d_box_set(&box, rect->left, rect->top, rect->right, rect->bottom, 0, 1);
    }
 
    if (surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
        hr = ddraw_surface_update_frontbuffer(surface, rect, TRUE, 0);
    if (SUCCEEDED(hr))
        hr = wined3d_resource_map(wined3d_texture_get_resource(surface->wined3d_texture),
                surface->sub_resource_idx, &map_desc, rect ? &box : NULL,
                wined3dmapflags_from_ddrawmapflags(flags));
    if (FAILED(hr))
    {
        wined3d_mutex_unlock();
        switch(hr)
        {
            /* D3D8 and D3D9 return the general D3DERR_INVALIDCALL error, but ddraw has a more
             * specific error. But since wined3d returns that error in this only occasion,
             * keep d3d8 and d3d9 free from the return value override. There are many different
             * places where d3d8/9 would have to catch the DDERR_SURFACEBUSY, it is much easier
             * to do it in one place in ddraw.
             */
            case WINED3DERR_INVALIDCALL:    return DDERR_SURFACEBUSY;
            default:                        return hr;
        }
    }
 
    if (surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
    {
        if (flags & DDLOCK_READONLY)
            SetRectEmpty(&surface->ddraw->primary_lock);
        else if (rect)
            surface->ddraw->primary_lock = *rect;
        else
            SetRect(&surface->ddraw->primary_lock, 0, 0, surface->surface_desc.dwWidth, surface->surface_desc.dwHeight);
    }
 
    /* Windows does not set DDSD_LPSURFACE on locked surfaces. */
    DD_STRUCT_COPY_BYSIZE_(surface_desc, &surface->surface_desc, surface_desc_size, surface->surface_desc.dwSize);
    surface_desc->lpSurface = map_desc.data;
 
    TRACE("locked surface returning description :\n");
    if (TRACE_ON(ddraw))
        DDRAW_dump_surface_desc(surface_desc);
 
    wined3d_mutex_unlock();
 
    return DD_OK;
}
 
static BOOL surface_validate_lock_desc(struct ddraw_surface *surface,
        const DDSURFACEDESC *desc, unsigned int *size)
{
    if (!desc)
        return FALSE;
 
    if (desc->dwSize == sizeof(DDSURFACEDESC) || desc->dwSize == sizeof(DDSURFACEDESC2))
    {
        *size = desc->dwSize;
        return TRUE;
    }
 
    if (surface->version == 7
            && surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_TEXTURE
            && !(surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_VIDEOMEMORY))
    {
        if (desc->dwSize >= sizeof(DDSURFACEDESC2))
            *size = sizeof(DDSURFACEDESC2);
        else
            *size = sizeof(DDSURFACEDESC);
        return TRUE;
    }
 
    WARN("Invalid structure size %u.\n", desc->dwSize);
    return FALSE;
}
 
static HRESULT WINAPI ddraw_surface7_Lock(IDirectDrawSurface7 *iface,
        RECT *rect, DDSURFACEDESC2 *surface_desc, DWORD flags, HANDLE h)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    unsigned int surface_desc_size;
 
    TRACE("iface %p, rect %s, surface_desc %p, flags %#x, h %p.\n",
            iface, wine_dbgstr_rect(rect), surface_desc, flags, h);
 
    if (!surface_validate_lock_desc(surface, (DDSURFACEDESC *)surface_desc, &surface_desc_size))
        return DDERR_INVALIDPARAMS;
 
    return surface_lock(surface, rect, surface_desc, surface_desc_size, flags, h);
}
 
static HRESULT WINAPI ddraw_surface4_Lock(IDirectDrawSurface4 *iface, RECT *rect,
        DDSURFACEDESC2 *surface_desc, DWORD flags, HANDLE h)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
    unsigned int surface_desc_size;
 
    TRACE("iface %p, rect %s, surface_desc %p, flags %#x, h %p.\n",
            iface, wine_dbgstr_rect(rect), surface_desc, flags, h);
 
    if (!surface_validate_lock_desc(surface, (DDSURFACEDESC *)surface_desc, &surface_desc_size))
        return DDERR_INVALIDPARAMS;
 
    return surface_lock(surface, rect, surface_desc, surface_desc_size, flags, h);
}
 
static HRESULT WINAPI ddraw_surface3_Lock(IDirectDrawSurface3 *iface, RECT *rect,
        DDSURFACEDESC *surface_desc, DWORD flags, HANDLE h)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
    unsigned int surface_desc_size;
    DDSURFACEDESC2 surface_desc2;
    HRESULT hr;
 
    TRACE("iface %p, rect %s, surface_desc %p, flags %#x, h %p.\n",
            iface, wine_dbgstr_rect(rect), surface_desc, flags, h);
 
    if (!surface_validate_lock_desc(surface, surface_desc, &surface_desc_size))
        return DDERR_INVALIDPARAMS;
 
    surface_desc2.dwSize = surface_desc->dwSize;
    surface_desc2.dwFlags = 0;
    hr = surface_lock(surface, rect, &surface_desc2, surface_desc_size, flags, h);
    DDSD2_to_DDSD(&surface_desc2, surface_desc);
    surface_desc->dwSize = surface_desc2.dwSize;
    return hr;
}
 
static HRESULT WINAPI ddraw_surface2_Lock(IDirectDrawSurface2 *iface, RECT *rect,
        DDSURFACEDESC *surface_desc, DWORD flags, HANDLE h)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
    unsigned int surface_desc_size;
    DDSURFACEDESC2 surface_desc2;
    HRESULT hr;
 
    TRACE("iface %p, rect %s, surface_desc %p, flags %#x, h %p.\n",
            iface, wine_dbgstr_rect(rect), surface_desc, flags, h);
 
    if (!surface_validate_lock_desc(surface, surface_desc, &surface_desc_size))
        return DDERR_INVALIDPARAMS;
 
    surface_desc2.dwSize = surface_desc->dwSize;
    surface_desc2.dwFlags = 0;
    hr = surface_lock(surface, rect, &surface_desc2, surface_desc_size, flags, h);
    DDSD2_to_DDSD(&surface_desc2, surface_desc);
    surface_desc->dwSize = surface_desc2.dwSize;
    return hr;
}
 
static HRESULT WINAPI ddraw_surface1_Lock(IDirectDrawSurface *iface, RECT *rect,
        DDSURFACEDESC *surface_desc, DWORD flags, HANDLE h)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
    unsigned int surface_desc_size;
    DDSURFACEDESC2 surface_desc2;
    HRESULT hr;
 
    TRACE("iface %p, rect %s, surface_desc %p, flags %#x, h %p.\n",
            iface, wine_dbgstr_rect(rect), surface_desc, flags, h);
 
    if (!surface_validate_lock_desc(surface, surface_desc, &surface_desc_size))
        return DDERR_INVALIDPARAMS;
 
    surface_desc2.dwSize = surface_desc->dwSize;
    surface_desc2.dwFlags = 0;
    hr = surface_lock(surface, rect, &surface_desc2, surface_desc_size, flags, h);
    DDSD2_to_DDSD(&surface_desc2, surface_desc);
    surface_desc->dwSize = surface_desc2.dwSize;
    return hr;
}
 
/*****************************************************************************
 * IDirectDrawSurface7::Unlock
 *
 * Unlocks an locked surface
 *
 * Params:
 *  Rect: Not used by this implementation
 *
 * Returns:
 *  D3D_OK on success, error code otherwise.
 *
 *****************************************************************************/
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface7_Unlock(IDirectDrawSurface7 *iface, RECT *pRect)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    HRESULT hr;
 
    TRACE("iface %p, rect %s.\n", iface, wine_dbgstr_rect(pRect));
 
    wined3d_mutex_lock();
    hr = wined3d_resource_unmap(wined3d_texture_get_resource(surface->wined3d_texture), surface->sub_resource_idx);
    if (SUCCEEDED(hr) && surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
        hr = ddraw_surface_update_frontbuffer(surface, &surface->ddraw->primary_lock, FALSE, 0);
    wined3d_mutex_unlock();
 
    return hr;
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface4_Unlock(IDirectDrawSurface4 *iface, RECT *pRect)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, rect %p.\n", iface, pRect);
 
    return ddraw_surface7_Unlock(&surface->IDirectDrawSurface7_iface, pRect);
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface3_Unlock(IDirectDrawSurface3 *iface, void *data)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, data %p.\n", iface, data);
 
    /* data might not be the LPRECT of later versions, so drop it. */
    return ddraw_surface7_Unlock(&surface->IDirectDrawSurface7_iface, NULL);
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface2_Unlock(IDirectDrawSurface2 *iface, void *data)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, data %p.\n", iface, data);
 
    /* data might not be the LPRECT of later versions, so drop it. */
    return ddraw_surface7_Unlock(&surface->IDirectDrawSurface7_iface, NULL);
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface1_Unlock(IDirectDrawSurface *iface, void *data)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, data %p.\n", iface, data);
 
    /* data might not be the LPRECT of later versions, so drop it. */
    return ddraw_surface7_Unlock(&surface->IDirectDrawSurface7_iface, NULL);
}
 
static unsigned int ddraw_swap_interval_from_flags(DWORD flags)
{
    if (flags & DDFLIP_NOVSYNC)
        return 0;
 
    switch (flags & (DDFLIP_INTERVAL2 | DDFLIP_INTERVAL3 | DDFLIP_INTERVAL4))
    {
        case DDFLIP_INTERVAL2:
            return 2;
        case DDFLIP_INTERVAL3:
            return 3;
        case DDFLIP_INTERVAL4:
            return 4;
        default:
            return 1;
    }
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface7_Flip(IDirectDrawSurface7 *iface,
        IDirectDrawSurface7 *src, DWORD flags)
{
    struct ddraw_surface *dst_impl = impl_from_IDirectDrawSurface7(iface);
    struct ddraw_surface *src_impl = unsafe_impl_from_IDirectDrawSurface7(src);
    struct wined3d_rendertarget_view *tmp_rtv, *src_rtv, *rtv;
    struct ddraw_texture *ddraw_texture, *prev_ddraw_texture;
    DDSCAPS2 caps = {DDSCAPS_FLIP, 0, 0, {0}};
    struct wined3d_texture *texture;
    IDirectDrawSurface7 *current;
    HRESULT hr;
 
    TRACE("iface %p, src %p, flags %#x.\n", iface, src, flags);
 
    if (src == iface || !(dst_impl->surface_desc.ddsCaps.dwCaps & (DDSCAPS_FRONTBUFFER | DDSCAPS_OVERLAY)))
        return DDERR_NOTFLIPPABLE;
 
    if (IDirectDrawSurface7_IsLost(iface) == DDERR_SURFACELOST)
        return DDERR_SURFACELOST;
 
    wined3d_mutex_lock();
 
    if ((dst_impl->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
            && !(dst_impl->ddraw->cooperative_level & DDSCL_EXCLUSIVE))
    {
        WARN("Not in exclusive mode.\n");
        wined3d_mutex_unlock();
        return DDERR_NOEXCLUSIVEMODE;
    }
 
    tmp_rtv = ddraw_surface_get_rendertarget_view(dst_impl);
    if (dst_impl->sub_resource_idx)
        ERR("Invalid sub-resource index %u on surface %p.\n", dst_impl->sub_resource_idx, dst_impl);
    texture = dst_impl->wined3d_texture;
    rtv = wined3d_device_get_rendertarget_view(dst_impl->ddraw->wined3d_device, 0);
    ddraw_texture = wined3d_texture_get_parent(dst_impl->wined3d_texture);
 
    if (src_impl)
    {
        for (current = iface; current != src;)
        {
            if (FAILED(hr = ddraw_surface7_GetAttachedSurface(current, &caps, &current)))
            {
                WARN("Surface %p is not on the same flip chain as surface %p.\n", src, iface);
                wined3d_mutex_unlock();
                return DDERR_NOTFLIPPABLE;
            }
            ddraw_surface7_Release(current);
            if (current == iface)
            {
                WARN("Surface %p is not on the same flip chain as surface %p.\n", src, iface);
                wined3d_mutex_unlock();
                return DDERR_NOTFLIPPABLE;
            }
        }
 
        src_rtv = ddraw_surface_get_rendertarget_view(src_impl);
        if (rtv == dst_impl->wined3d_rtv)
            wined3d_device_set_rendertarget_view(dst_impl->ddraw->wined3d_device, 0, src_rtv, FALSE);
        wined3d_rendertarget_view_set_parent(src_rtv, dst_impl);
        dst_impl->wined3d_rtv = src_rtv;
        wined3d_texture_set_sub_resource_parent(src_impl->wined3d_texture, 0, dst_impl);
        prev_ddraw_texture = wined3d_texture_get_parent(src_impl->wined3d_texture);
        wined3d_resource_set_parent(wined3d_texture_get_resource(src_impl->wined3d_texture), ddraw_texture);
        if (src_impl->sub_resource_idx)
            ERR("Invalid sub-resource index %u on surface %p.\n", src_impl->sub_resource_idx, src_impl);
        dst_impl->wined3d_texture = src_impl->wined3d_texture;
        ddraw_texture = prev_ddraw_texture;
    }
    else
    {
        for (current = iface;;)
        {
            if (FAILED(hr = ddraw_surface7_GetAttachedSurface(current, &caps, &current)))
            {
                ERR("Can't find a flip target\n");
                wined3d_mutex_unlock();
                return DDERR_NOTFLIPPABLE; /* Unchecked */
            }
            ddraw_surface7_Release(current);
            if (current == iface)
            {
                dst_impl = impl_from_IDirectDrawSurface7(iface);
                break;
            }
 
            src_impl = impl_from_IDirectDrawSurface7(current);
            src_rtv = ddraw_surface_get_rendertarget_view(src_impl);
            if (rtv == dst_impl->wined3d_rtv)
                wined3d_device_set_rendertarget_view(dst_impl->ddraw->wined3d_device, 0, src_rtv, FALSE);
            wined3d_rendertarget_view_set_parent(src_rtv, dst_impl);
            dst_impl->wined3d_rtv = src_rtv;
            wined3d_texture_set_sub_resource_parent(src_impl->wined3d_texture, 0, dst_impl);
            prev_ddraw_texture = wined3d_texture_get_parent(src_impl->wined3d_texture);
            wined3d_resource_set_parent(wined3d_texture_get_resource(src_impl->wined3d_texture), ddraw_texture);
            ddraw_texture = prev_ddraw_texture;
            if (src_impl->sub_resource_idx)
                ERR("Invalid sub-resource index %u on surface %p.\n", src_impl->sub_resource_idx, src_impl);
            dst_impl->wined3d_texture = src_impl->wined3d_texture;
            dst_impl = src_impl;
        }
    }
 
    /* We don't have to worry about potential texture bindings, since
     * flippable surfaces can never be textures. */
    if (rtv == src_impl->wined3d_rtv)
        wined3d_device_set_rendertarget_view(dst_impl->ddraw->wined3d_device, 0, tmp_rtv, FALSE);
    wined3d_rendertarget_view_set_parent(tmp_rtv, src_impl);
    src_impl->wined3d_rtv = tmp_rtv;
    wined3d_texture_set_sub_resource_parent(texture, 0, src_impl);
    wined3d_resource_set_parent(wined3d_texture_get_resource(texture), ddraw_texture);
    src_impl->wined3d_texture = texture;
 
    if (flags)
    {
        static UINT once;
        if (!once++)
            FIXME("Ignoring flags %#x.\n", flags);
        else
            WARN("Ignoring flags %#x.\n", flags);
    }
 
    if (dst_impl->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
        hr = ddraw_surface_update_frontbuffer(dst_impl, NULL, FALSE,ddraw_swap_interval_from_flags(flags));
    else
        hr = DD_OK;
 
    wined3d_mutex_unlock();
 
    return hr;
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface4_Flip(IDirectDrawSurface4 *iface,
        IDirectDrawSurface4 *src, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
    struct ddraw_surface *src_impl = unsafe_impl_from_IDirectDrawSurface4(src);
 
    TRACE("iface %p, src %p, flags %#x.\n", iface, src, flags);
 
    return ddraw_surface7_Flip(&surface->IDirectDrawSurface7_iface,
            src_impl ? &src_impl->IDirectDrawSurface7_iface : NULL, flags);
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface3_Flip(IDirectDrawSurface3 *iface,
        IDirectDrawSurface3 *src, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
    struct ddraw_surface *src_impl = unsafe_impl_from_IDirectDrawSurface3(src);
 
    TRACE("iface %p, src %p, flags %#x.\n", iface, src, flags);
 
    return ddraw_surface7_Flip(&surface->IDirectDrawSurface7_iface,
            src_impl ? &src_impl->IDirectDrawSurface7_iface : NULL, flags);
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface2_Flip(IDirectDrawSurface2 *iface,
        IDirectDrawSurface2 *src, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
    struct ddraw_surface *src_impl = unsafe_impl_from_IDirectDrawSurface2(src);
 
    TRACE("iface %p, src %p, flags %#x.\n", iface, src, flags);
 
    return ddraw_surface7_Flip(&surface->IDirectDrawSurface7_iface,
            src_impl ? &src_impl->IDirectDrawSurface7_iface : NULL, flags);
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface1_Flip(IDirectDrawSurface *iface,
        IDirectDrawSurface *src, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
    struct ddraw_surface *src_impl = unsafe_impl_from_IDirectDrawSurface(src);
 
    TRACE("iface %p, src %p, flags %#x.\n", iface, src, flags);
 
    return ddraw_surface7_Flip(&surface->IDirectDrawSurface7_iface,
            src_impl ? &src_impl->IDirectDrawSurface7_iface : NULL, flags);
}
 
static HRESULT ddraw_surface_blt(struct ddraw_surface *dst_surface, const RECT *dst_rect,
        struct ddraw_surface *src_surface, const RECT *src_rect, DWORD flags, DWORD fill_colour,
        const struct wined3d_blt_fx *fx, enum wined3d_texture_filter_type filter)
{
    struct wined3d_device *wined3d_device = dst_surface->ddraw->wined3d_device;
    struct wined3d_color colour;
    DWORD wined3d_flags;
 
    if (flags & DDBLT_COLORFILL)
    {
        if (!wined3d_colour_from_ddraw_colour(&dst_surface->surface_desc.u4.ddpfPixelFormat,
                dst_surface->palette, fill_colour, &colour))
            return DDERR_INVALIDPARAMS;
 
        return wined3d_device_clear_rendertarget_view(wined3d_device,
                ddraw_surface_get_rendertarget_view(dst_surface),
                dst_rect, WINED3DCLEAR_TARGET, &colour, 0.0f, 0);
    }
 
    if (flags & DDBLT_DEPTHFILL)
    {
        if (!wined3d_colour_from_ddraw_colour(&dst_surface->surface_desc.u4.ddpfPixelFormat,
                dst_surface->palette, fill_colour, &colour))
            return DDERR_INVALIDPARAMS;
 
        return wined3d_device_clear_rendertarget_view(wined3d_device,
                ddraw_surface_get_rendertarget_view(dst_surface),
                dst_rect, WINED3DCLEAR_ZBUFFER, NULL, colour.r, 0);
    }
 
    wined3d_flags = flags & ~DDBLT_ASYNC;
    if (wined3d_flags & ~WINED3D_BLT_MASK)
    {
        FIXME("Unhandled flags %#x.\n", flags);
        return E_NOTIMPL;
    }
 
    if (!(flags & DDBLT_ASYNC))
        wined3d_flags |= WINED3D_BLT_SYNCHRONOUS;
 
    return wined3d_texture_blt(dst_surface->wined3d_texture, dst_surface->sub_resource_idx, dst_rect,
            src_surface->wined3d_texture, src_surface->sub_resource_idx, src_rect, wined3d_flags, fx, filter);
}
 
static HRESULT ddraw_surface_blt_clipped(struct ddraw_surface *dst_surface, const RECT *dst_rect_in,
        struct ddraw_surface *src_surface, const RECT *src_rect_in, DWORD flags, DWORD fill_colour,
        const struct wined3d_blt_fx *fx, enum wined3d_texture_filter_type filter)
{
    RECT src_rect, dst_rect;
    float scale_x, scale_y;
    const RECT *clip_rect;
    UINT clip_list_size;
    RGNDATA *clip_list;
    HRESULT hr = DD_OK;
    UINT i;
 
    if (!dst_rect_in)
        SetRect(&dst_rect, 0, 0, dst_surface->surface_desc.dwWidth,
                dst_surface->surface_desc.dwHeight);
    else
        dst_rect = *dst_rect_in;
 
    if (IsRectEmpty(&dst_rect))
        return DDERR_INVALIDRECT;
 
    if (src_surface)
    {
        if (!src_rect_in)
            SetRect(&src_rect, 0, 0, src_surface->surface_desc.dwWidth,
                    src_surface->surface_desc.dwHeight);
        else
            src_rect = *src_rect_in;
 
        if (IsRectEmpty(&src_rect))
            return DDERR_INVALIDRECT;
    }
    else
    {
        SetRectEmpty(&src_rect);
    }
 
    if (!dst_surface->clipper)
    {
        if (src_surface && src_surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
            hr = ddraw_surface_update_frontbuffer(src_surface, &src_rect, TRUE, 0);
        if (SUCCEEDED(hr))
            hr = ddraw_surface_blt(dst_surface, &dst_rect, src_surface, &src_rect, flags, fill_colour, fx, filter);
        if (SUCCEEDED(hr) && (dst_surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE))
            hr = ddraw_surface_update_frontbuffer(dst_surface, &dst_rect, FALSE, 0);
 
        return hr;
    }
 
    scale_x = (float)(src_rect.right - src_rect.left) / (float)(dst_rect.right - dst_rect.left);
    scale_y = (float)(src_rect.bottom - src_rect.top) / (float)(dst_rect.bottom - dst_rect.top);
 
    if (FAILED(hr = IDirectDrawClipper_GetClipList(&dst_surface->clipper->IDirectDrawClipper_iface,
            &dst_rect, NULL, &clip_list_size)))
    {
        WARN("Failed to get clip list size, hr %#x.\n", hr);
        return hr;
    }
 
    if (!(clip_list = heap_alloc(clip_list_size)))
    {
        WARN("Failed to allocate clip list.\n");
        return E_OUTOFMEMORY;
    }
 
    if (FAILED(hr = IDirectDrawClipper_GetClipList(&dst_surface->clipper->IDirectDrawClipper_iface,
            &dst_rect, clip_list, &clip_list_size)))
    {
        WARN("Failed to get clip list, hr %#x.\n", hr);
        heap_free(clip_list);
        return hr;
    }
 
    clip_rect = (RECT *)clip_list->Buffer;
    for (i = 0; i < clip_list->rdh.nCount; ++i)
    {
        RECT src_rect_clipped = src_rect;
 
        if (src_surface)
        {
            src_rect_clipped.left += (LONG)((clip_rect[i].left - dst_rect.left) * scale_x);
            src_rect_clipped.top += (LONG)((clip_rect[i].top - dst_rect.top) * scale_y);
            src_rect_clipped.right -= (LONG)((dst_rect.right - clip_rect[i].right) * scale_x);
            src_rect_clipped.bottom -= (LONG)((dst_rect.bottom - clip_rect[i].bottom) * scale_y);
 
            if (src_surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
            {
                if (FAILED(hr = ddraw_surface_update_frontbuffer(src_surface, &src_rect_clipped, TRUE, 0)))
                    break;
            }
        }
 
        if (FAILED(hr = ddraw_surface_blt(dst_surface, &clip_rect[i],
                src_surface, &src_rect_clipped, flags, fill_colour, fx, filter)))
            break;
 
        if (dst_surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
        {
            if (FAILED(hr = ddraw_surface_update_frontbuffer(dst_surface, &clip_rect[i], FALSE, 0)))
                break;
        }
    }
 
    heap_free(clip_list);
    return hr;
}
 
/*****************************************************************************
 * IDirectDrawSurface7::Blt
 *
 * Performs a blit on the surface
 *
 * Params:
 *  DestRect: Destination rectangle, can be NULL
 *  SrcSurface: Source surface, can be NULL
 *  SrcRect: Source rectangle, can be NULL
 *  Flags: Blt flags
 *  DDBltFx: Some extended blt parameters, connected to the flags
 *
 * Returns:
 *  D3D_OK on success, error code otherwise.
 *
 *****************************************************************************/
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface7_Blt(IDirectDrawSurface7 *iface, RECT *dst_rect,
        IDirectDrawSurface7 *src_surface, RECT *src_rect, DWORD flags, DDBLTFX *fx)
{
    struct ddraw_surface *dst_impl = impl_from_IDirectDrawSurface7(iface);
    struct ddraw_surface *src_impl = unsafe_impl_from_IDirectDrawSurface7(src_surface);
    struct wined3d_blt_fx wined3d_fx;
    DWORD unsupported_flags;
    DWORD fill_colour = 0;
    HRESULT hr = DD_OK;
    DDBLTFX rop_fx;
 
    TRACE("iface %p, dst_rect %s, src_surface %p, src_rect %s, flags %#x, fx %p.\n",
            iface, wine_dbgstr_rect(dst_rect), src_surface, wine_dbgstr_rect(src_rect), flags, fx);
 
    unsupported_flags = DDBLT_ALPHADEST
            | DDBLT_ALPHADESTCONSTOVERRIDE
            | DDBLT_ALPHADESTNEG
            | DDBLT_ALPHADESTSURFACEOVERRIDE
            | DDBLT_ALPHAEDGEBLEND
            | DDBLT_ALPHASRC
            | DDBLT_ALPHASRCCONSTOVERRIDE
            | DDBLT_ALPHASRCNEG
            | DDBLT_ALPHASRCSURFACEOVERRIDE
            | DDBLT_ZBUFFER
            | DDBLT_ZBUFFERDESTCONSTOVERRIDE
            | DDBLT_ZBUFFERDESTOVERRIDE
            | DDBLT_ZBUFFERSRCCONSTOVERRIDE
            | DDBLT_ZBUFFERSRCOVERRIDE;
    if (flags & unsupported_flags)
    {
        WARN("Ignoring unsupported flags %#x.\n", flags & unsupported_flags);
        flags &= ~unsupported_flags;
    }
 
    if ((flags & DDBLT_KEYSRCOVERRIDE) && (!fx || flags & DDBLT_KEYSRC))
    {
        WARN("Invalid source color key parameters, returning DDERR_INVALIDPARAMS\n");
        return DDERR_INVALIDPARAMS;
    }
 
    if ((flags & DDBLT_KEYDESTOVERRIDE) && (!fx || flags & DDBLT_KEYDEST))
    {
        WARN("Invalid destination color key parameters, returning DDERR_INVALIDPARAMS\n");
        return DDERR_INVALIDPARAMS;
    }
 
    if (flags & DDBLT_DDROPS)
    {
        FIXME("DDBLT_DDROPS not implemented.\n");
        if (fx)
            FIXME("    rop %#x, pattern %p.\n", fx->dwDDROP, fx->u5.lpDDSPattern);
        return DDERR_NORASTEROPHW;
    }
 
    wined3d_mutex_lock();
 
    if (flags & (DDBLT_COLORFILL | DDBLT_DEPTHFILL))
    {
        if (flags & DDBLT_ROP)
        {
            wined3d_mutex_unlock();
            WARN("DDBLT_ROP used with DDBLT_COLORFILL or DDBLT_DEPTHFILL, returning DDERR_INVALIDPARAMS.\n");
            return DDERR_INVALIDPARAMS;
        }
        if (src_impl)
        {
            wined3d_mutex_unlock();
            WARN("Depth or colorfill is not compatible with source surfaces, returning DDERR_INVALIDPARAMS\n");
            return DDERR_INVALIDPARAMS;
        }
        if (!fx)
        {
            wined3d_mutex_unlock();
            WARN("Depth or colorfill used with NULL fx, returning DDERR_INVALIDPARAMS.\n");
            return DDERR_INVALIDPARAMS;
        }
 
        if ((flags & (DDBLT_COLORFILL | DDBLT_DEPTHFILL)) == (DDBLT_COLORFILL | DDBLT_DEPTHFILL))
            flags &= ~DDBLT_DEPTHFILL;
 
        if ((dst_impl->surface_desc.ddsCaps.dwCaps & DDSCAPS_ZBUFFER) && (flags & DDBLT_COLORFILL))
        {
            wined3d_mutex_unlock();
            WARN("DDBLT_COLORFILL used on a depth buffer, returning DDERR_INVALIDPARAMS.\n");
            return DDERR_INVALIDPARAMS;
        }
        if (!(dst_impl->surface_desc.ddsCaps.dwCaps & DDSCAPS_ZBUFFER) && (flags & DDBLT_DEPTHFILL))
        {
            wined3d_mutex_unlock();
            WARN("DDBLT_DEPTHFILL used on a color buffer, returning DDERR_INVALIDPARAMS.\n");
            return DDERR_INVALIDPARAMS;
        }
    }
 
    if (flags & DDBLT_ROP)
    {
        if (!fx)
        {
            wined3d_mutex_unlock();
            WARN("DDBLT_ROP used with NULL fx, returning DDERR_INVALIDPARAMS.\n");
            return DDERR_INVALIDPARAMS;
        }
 
        if (src_impl && src_rect
                && ((ULONG)src_rect->left >= src_rect->right || src_rect->right > src_impl->surface_desc.dwWidth
                || (ULONG)src_rect->top >= src_rect->bottom || src_rect->bottom > src_impl->surface_desc.dwHeight))
        {
            WARN("Invalid source rectangle.\n");
            return DDERR_INVALIDRECT;
        }
 
        flags &= ~DDBLT_ROP;
        switch (fx->dwROP)
        {
            case SRCCOPY:
                break;
 
            case WHITENESS:
            case BLACKNESS:
                rop_fx = *fx;
 
                if (fx->dwROP == WHITENESS)
                    rop_fx.u5.dwFillColor = 0xffffffff;
                else
                    rop_fx.u5.dwFillColor = 0;
 
                if (dst_impl->surface_desc.ddsCaps.dwCaps & DDSCAPS_ZBUFFER)
                    flags |= DDBLT_DEPTHFILL;
                else
                    flags |= DDBLT_COLORFILL;
 
                fx = &rop_fx;
                break;
 
            default:
                wined3d_mutex_unlock();
                WARN("Unsupported ROP %#x used, returning DDERR_NORASTEROPHW.\n", fx->dwROP);
                return DDERR_NORASTEROPHW;
        }
    }
 
    if (!(flags & (DDBLT_COLORFILL | DDBLT_DEPTHFILL)) && !src_impl)
    {
        WARN("No source surface.\n");
        return DDERR_INVALIDPARAMS;
    }
 
    if (flags & DDBLT_KEYSRC && (!src_impl || !(src_impl->surface_desc.dwFlags & DDSD_CKSRCBLT)))
    {
        WARN("DDBLT_KEYSRC blit without color key in surface, returning DDERR_INVALIDPARAMS\n");
        wined3d_mutex_unlock();
        return DDERR_INVALIDPARAMS;
    }
    if (flags & DDBLT_KEYDEST && !(dst_impl->surface_desc.dwFlags & DDSD_CKDESTBLT))
    {
        WARN("DDBLT_KEYDEST blit without color key in surface, returning DDERR_INVALIDPARAMS\n");
        wined3d_mutex_unlock();
        return DDERR_INVALIDPARAMS;
    }
 
    if (fx)
    {
        wined3d_fx.fx = fx->dwDDFX;
        fill_colour = fx->u5.dwFillColor;
        wined3d_fx.dst_color_key.color_space_low_value = fx->ddckDestColorkey.dwColorSpaceLowValue;
        wined3d_fx.dst_color_key.color_space_high_value = fx->ddckDestColorkey.dwColorSpaceHighValue;
        wined3d_fx.src_color_key.color_space_low_value = fx->ddckSrcColorkey.dwColorSpaceLowValue;
        wined3d_fx.src_color_key.color_space_high_value = fx->ddckSrcColorkey.dwColorSpaceHighValue;
    }
 
    hr = ddraw_surface_blt_clipped(dst_impl, dst_rect, src_impl,
            src_rect, flags, fill_colour, fx ? &wined3d_fx : NULL, WINED3D_TEXF_LINEAR);
 
    wined3d_mutex_unlock();
    switch(hr)
    {
        case WINED3DERR_NOTAVAILABLE:       return DDERR_UNSUPPORTED;
        default:                            return hr;
    }
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface4_Blt(IDirectDrawSurface4 *iface, RECT *dst_rect,
        IDirectDrawSurface4 *src_surface, RECT *src_rect, DWORD flags, DDBLTFX *fx)
{
    struct ddraw_surface *dst = impl_from_IDirectDrawSurface4(iface);
    struct ddraw_surface *src = unsafe_impl_from_IDirectDrawSurface4(src_surface);
 
    TRACE("iface %p, dst_rect %s, src_surface %p, src_rect %s, flags %#x, fx %p.\n",
            iface, wine_dbgstr_rect(dst_rect), src_surface, wine_dbgstr_rect(src_rect), flags, fx);
 
    return ddraw_surface7_Blt(&dst->IDirectDrawSurface7_iface, dst_rect,
            src ? &src->IDirectDrawSurface7_iface : NULL, src_rect, flags, fx);
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface3_Blt(IDirectDrawSurface3 *iface, RECT *dst_rect,
        IDirectDrawSurface3 *src_surface, RECT *src_rect, DWORD flags, DDBLTFX *fx)
{
    struct ddraw_surface *dst = impl_from_IDirectDrawSurface3(iface);
    struct ddraw_surface *src_impl = unsafe_impl_from_IDirectDrawSurface3(src_surface);
 
    TRACE("iface %p, dst_rect %s, src_surface %p, src_rect %s, flags %#x, fx %p.\n",
            iface, wine_dbgstr_rect(dst_rect), src_surface, wine_dbgstr_rect(src_rect), flags, fx);
 
    return ddraw_surface7_Blt(&dst->IDirectDrawSurface7_iface, dst_rect,
            src_impl ? &src_impl->IDirectDrawSurface7_iface : NULL, src_rect, flags, fx);
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface2_Blt(IDirectDrawSurface2 *iface, RECT *dst_rect,
        IDirectDrawSurface2 *src_surface, RECT *src_rect, DWORD flags, DDBLTFX *fx)
{
    struct ddraw_surface *dst = impl_from_IDirectDrawSurface2(iface);
    struct ddraw_surface *src_impl = unsafe_impl_from_IDirectDrawSurface2(src_surface);
 
    TRACE("iface %p, dst_rect %s, src_surface %p, src_rect %s, flags %#x, fx %p.\n",
            iface, wine_dbgstr_rect(dst_rect), src_surface, wine_dbgstr_rect(src_rect), flags, fx);
 
    return ddraw_surface7_Blt(&dst->IDirectDrawSurface7_iface, dst_rect,
            src_impl ? &src_impl->IDirectDrawSurface7_iface : NULL, src_rect, flags, fx);
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface1_Blt(IDirectDrawSurface *iface, RECT *dst_rect,
        IDirectDrawSurface *src_surface, RECT *src_rect, DWORD flags, DDBLTFX *fx)
{
    struct ddraw_surface *dst = impl_from_IDirectDrawSurface(iface);
    struct ddraw_surface *src_impl = unsafe_impl_from_IDirectDrawSurface(src_surface);
 
    TRACE("iface %p, dst_rect %s, src_surface %p, src_rect %s, flags %#x, fx %p.\n",
            iface, wine_dbgstr_rect(dst_rect), src_surface, wine_dbgstr_rect(src_rect), flags, fx);
 
    return ddraw_surface7_Blt(&dst->IDirectDrawSurface7_iface, dst_rect,
            src_impl ? &src_impl->IDirectDrawSurface7_iface : NULL, src_rect, flags, fx);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::AddAttachedSurface
 *
 * Attaches a surface to another surface. How the surface attachments work
 * is not totally understood yet, and this method is prone to problems.
 * The surface that is attached is AddRef-ed.
 *
 * Tests with complex surfaces suggest that the surface attachments form a
 * tree, but no method to test this has been found yet.
 *
 * The attachment list consists of a first surface (first_attached) and
 * for each surface a pointer to the next attached surface (next_attached).
 * For the first surface, and a surface that has no attachments
 * first_attached points to the surface itself. A surface that has
 * no successors in the chain has next_attached set to NULL.
 *
 * Newly attached surfaces are attached right after the root surface.
 * If a surface is attached to a complex surface compound, it's attached to
 * the surface that the app requested, not the complex root. See
 * GetAttachedSurface for a description how surfaces are found.
 *
 * This is how the current implementation works, and it was coded by looking
 * at the needs of the applications.
 *
 * So far only Z-Buffer attachments are tested, and they are activated in
 * WineD3D. Mipmaps could be tricky to activate in WineD3D.
 * Back buffers should work in 2D mode, but they are not tested(They can be
 * attached in older iface versions). Rendering to the front buffer and
 * switching between that and double buffering is not yet implemented in
 * WineD3D, so for 3D it might have unexpected results.
 *
 * ddraw_surface_attach_surface is the real thing,
 * ddraw_surface7_AddAttachedSurface is a wrapper around it that
 * performs additional checks. Version 7 of this interface is much more restrictive
 * than its predecessors.
 *
 * Params:
 *  Attach: Surface to attach to iface
 *
 * Returns:
 *  DD_OK on success
 *  DDERR_CANNOTATTACHSURFACE if the surface can't be attached for some reason
 *
 *****************************************************************************/
static HRESULT ddraw_surface_attach_surface(struct ddraw_surface *This, struct ddraw_surface *Surf)
{
    TRACE("surface %p, attachment %p.\n", This, Surf);
 
    if(Surf == This)
        return DDERR_CANNOTATTACHSURFACE; /* unchecked */
 
    wined3d_mutex_lock();
 
    /* Check if the surface is already attached somewhere */
    if (Surf->next_attached || Surf->first_attached != Surf)
    {
        /* TODO: Test for the structure of the manual attachment. Is it a
         * chain or a list? What happens if one surface is attached to 2
         * different surfaces? */
        WARN("Surface %p is already attached somewhere. next_attached %p, first_attached %p.\n",
                Surf, Surf->next_attached, Surf->first_attached);
 
        wined3d_mutex_unlock();
        return DDERR_SURFACEALREADYATTACHED;
    }
 
    /* This inserts the new surface at the 2nd position in the chain, right after the root surface */
    Surf->next_attached = This->next_attached;
    Surf->first_attached = This->first_attached;
    This->next_attached = Surf;
 
    /* Check if the WineD3D depth stencil needs updating */
    if (This->ddraw->d3ddevice)
        d3d_device_update_depth_stencil(This->ddraw->d3ddevice);
 
    wined3d_mutex_unlock();
 
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface7_AddAttachedSurface(IDirectDrawSurface7 *iface, IDirectDrawSurface7 *attachment)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface7(iface);
    struct ddraw_surface *attachment_impl = unsafe_impl_from_IDirectDrawSurface7(attachment);
    HRESULT hr;
 
    TRACE("iface %p, attachment %p.\n", iface, attachment);
 
    /* Version 7 of this interface seems to refuse everything except z buffers, as per msdn */
    if(!(attachment_impl->surface_desc.ddsCaps.dwCaps & DDSCAPS_ZBUFFER))
    {
 
        WARN("Application tries to attach a non Z buffer surface. caps %08x\n",
              attachment_impl->surface_desc.ddsCaps.dwCaps);
        return DDERR_CANNOTATTACHSURFACE;
    }
 
    hr = ddraw_surface_attach_surface(This, attachment_impl);
    if (FAILED(hr))
    {
        return hr;
    }
    attachment_impl->attached_iface = (IUnknown *)attachment;
    IUnknown_AddRef(attachment_impl->attached_iface);
    return hr;
}
 
static HRESULT WINAPI ddraw_surface4_AddAttachedSurface(IDirectDrawSurface4 *iface, IDirectDrawSurface4 *attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
    struct ddraw_surface *attachment_impl = unsafe_impl_from_IDirectDrawSurface4(attachment);
    HRESULT hr;
 
    TRACE("iface %p, attachment %p.\n", iface, attachment);
 
    /* Tests suggest that
     * -> offscreen plain surfaces can be attached to other offscreen plain surfaces
     * -> offscreen plain surfaces can be attached to primaries
     * -> primaries can be attached to offscreen plain surfaces
     * -> z buffers can be attached to primaries */
    if (surface->surface_desc.ddsCaps.dwCaps & (DDSCAPS_PRIMARYSURFACE | DDSCAPS_OFFSCREENPLAIN)
            && attachment_impl->surface_desc.ddsCaps.dwCaps & (DDSCAPS_PRIMARYSURFACE | DDSCAPS_OFFSCREENPLAIN))
    {
        /* Sizes have to match */
        if (attachment_impl->surface_desc.dwWidth != surface->surface_desc.dwWidth
                || attachment_impl->surface_desc.dwHeight != surface->surface_desc.dwHeight)
        {
            WARN("Surface sizes do not match.\n");
            return DDERR_CANNOTATTACHSURFACE;
        }
    }
    else if (!(surface->surface_desc.ddsCaps.dwCaps & (DDSCAPS_PRIMARYSURFACE | DDSCAPS_3DDEVICE))
            || !(attachment_impl->surface_desc.ddsCaps.dwCaps & (DDSCAPS_ZBUFFER)))
    {
        WARN("Invalid attachment combination.\n");
        return DDERR_CANNOTATTACHSURFACE;
    }
 
    if (FAILED(hr = ddraw_surface_attach_surface(surface, attachment_impl)))
        return hr;
 
    attachment_impl->attached_iface = (IUnknown *)attachment;
    IUnknown_AddRef(attachment_impl->attached_iface);
    return hr;
}
 
static HRESULT WINAPI ddraw_surface3_AddAttachedSurface(IDirectDrawSurface3 *iface, IDirectDrawSurface3 *attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
    struct ddraw_surface *attachment_impl = unsafe_impl_from_IDirectDrawSurface3(attachment);
    HRESULT hr;
 
    TRACE("iface %p, attachment %p.\n", iface, attachment);
 
    if (FAILED(hr = ddraw_surface4_AddAttachedSurface(&surface->IDirectDrawSurface4_iface,
            attachment_impl ? &attachment_impl->IDirectDrawSurface4_iface : NULL)))
        return hr;
 
    attachment_impl->attached_iface = (IUnknown *)attachment;
    IUnknown_AddRef(attachment_impl->attached_iface);
    ddraw_surface4_Release(&attachment_impl->IDirectDrawSurface4_iface);
    return hr;
}
 
static HRESULT WINAPI ddraw_surface2_AddAttachedSurface(IDirectDrawSurface2 *iface, IDirectDrawSurface2 *attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
    struct ddraw_surface *attachment_impl = unsafe_impl_from_IDirectDrawSurface2(attachment);
    HRESULT hr;
 
    TRACE("iface %p, attachment %p.\n", iface, attachment);
 
    if (FAILED(hr = ddraw_surface4_AddAttachedSurface(&surface->IDirectDrawSurface4_iface,
            attachment_impl ? &attachment_impl->IDirectDrawSurface4_iface : NULL)))
        return hr;
 
    attachment_impl->attached_iface = (IUnknown *)attachment;
    IUnknown_AddRef(attachment_impl->attached_iface);
    ddraw_surface4_Release(&attachment_impl->IDirectDrawSurface4_iface);
    return hr;
}
 
static HRESULT WINAPI ddraw_surface1_AddAttachedSurface(IDirectDrawSurface *iface, IDirectDrawSurface *attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
    struct ddraw_surface *attachment_impl = unsafe_impl_from_IDirectDrawSurface(attachment);
    HRESULT hr;
 
    TRACE("iface %p, attachment %p.\n", iface, attachment);
 
    if (FAILED(hr = ddraw_surface4_AddAttachedSurface(&surface->IDirectDrawSurface4_iface,
            attachment_impl ? &attachment_impl->IDirectDrawSurface4_iface : NULL)))
        return hr;
 
    attachment_impl->attached_iface = (IUnknown *)attachment;
    IUnknown_AddRef(attachment_impl->attached_iface);
    ddraw_surface4_Release(&attachment_impl->IDirectDrawSurface4_iface);
    return hr;
}
 
/*****************************************************************************
 * IDirectDrawSurface7::DeleteAttachedSurface
 *
 * Removes a surface from the attachment chain. The surface's refcount
 * is decreased by one after it has been removed
 *
 * Params:
 *  Flags: Some flags, not used by this implementation
 *  Attach: Surface to detach
 *
 * Returns:
 *  DD_OK on success
 *  DDERR_SURFACENOTATTACHED if the surface isn't attached to
 *
 *****************************************************************************/
static HRESULT ddraw_surface_delete_attached_surface(struct ddraw_surface *surface,
        struct ddraw_surface *attachment, IUnknown *detach_iface)
{
    struct ddraw_surface *prev = surface;
 
    TRACE("surface %p, attachment %p, detach_iface %p.\n", surface, attachment, detach_iface);
 
    wined3d_mutex_lock();
    if (!attachment || (attachment->first_attached != surface) || (attachment == surface) )
    {
        wined3d_mutex_unlock();
        return DDERR_CANNOTDETACHSURFACE;
    }
 
    if (attachment->attached_iface != detach_iface)
    {
        WARN("attachment->attach_iface %p != detach_iface %p.\n", attachment->attached_iface, detach_iface);
        wined3d_mutex_unlock();
        return DDERR_SURFACENOTATTACHED;
    }
 
    /* Remove MIPMAPSUBLEVEL if this seemed to be one */
    if (surface->surface_desc.ddsCaps.dwCaps & attachment->surface_desc.ddsCaps.dwCaps & DDSCAPS_MIPMAP)
    {
        attachment->surface_desc.ddsCaps.dwCaps2 &= ~DDSCAPS2_MIPMAPSUBLEVEL;
        /* FIXME: we should probably also subtract from dwMipMapCount of this
         * and all parent surfaces */
    }
 
    /* Find the predecessor of the detached surface */
    while (prev->next_attached != attachment)
    {
        if (!(prev = prev->next_attached))
        {
            ERR("Failed to find predecessor of %p.\n", attachment);
            wined3d_mutex_unlock();
            return DDERR_SURFACENOTATTACHED;
        }
    }
 
    /* Unchain the surface */
    prev->next_attached = attachment->next_attached;
    attachment->next_attached = NULL;
    attachment->first_attached = attachment;
 
    /* Check if the wined3d depth stencil needs updating. Note that we don't
     * just call d3d_device_update_depth_stencil() here since it uses
     * QueryInterface(). Some applications, SCP - Containment Breach in
     * particular, modify the QueryInterface() pointer in the surface vtbl
     * but don't cleanup properly after the relevant dll is unloaded. */
    if (attachment->surface_desc.ddsCaps.dwCaps & DDSCAPS_ZBUFFER
            && wined3d_device_get_depth_stencil_view(surface->ddraw->wined3d_device) == attachment->wined3d_rtv)
        wined3d_device_set_depth_stencil_view(surface->ddraw->wined3d_device, NULL);
    wined3d_mutex_unlock();
 
    /* Set attached_iface to NULL before releasing it, the surface may go
     * away. */
    attachment->attached_iface = NULL;
    IUnknown_Release(detach_iface);
 
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface7_DeleteAttachedSurface(IDirectDrawSurface7 *iface,
        DWORD flags, IDirectDrawSurface7 *attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    struct ddraw_surface *attachment_impl = unsafe_impl_from_IDirectDrawSurface7(attachment);
 
    TRACE("iface %p, flags %#x, attachment %p.\n", iface, flags, attachment);
 
    return ddraw_surface_delete_attached_surface(surface, attachment_impl, (IUnknown *)attachment);
}
 
static HRESULT WINAPI ddraw_surface4_DeleteAttachedSurface(IDirectDrawSurface4 *iface,
        DWORD flags, IDirectDrawSurface4 *attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
    struct ddraw_surface *attachment_impl = unsafe_impl_from_IDirectDrawSurface4(attachment);
 
    TRACE("iface %p, flags %#x, attachment %p.\n", iface, flags, attachment);
 
    return ddraw_surface_delete_attached_surface(surface, attachment_impl, (IUnknown *)attachment);
}
 
static HRESULT WINAPI ddraw_surface3_DeleteAttachedSurface(IDirectDrawSurface3 *iface,
        DWORD flags, IDirectDrawSurface3 *attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
    struct ddraw_surface *attachment_impl = unsafe_impl_from_IDirectDrawSurface3(attachment);
 
    TRACE("iface %p, flags %#x, attachment %p.\n", iface, flags, attachment);
 
    return ddraw_surface_delete_attached_surface(surface, attachment_impl, (IUnknown *)attachment);
}
 
static HRESULT WINAPI ddraw_surface2_DeleteAttachedSurface(IDirectDrawSurface2 *iface,
        DWORD flags, IDirectDrawSurface2 *attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
    struct ddraw_surface *attachment_impl = unsafe_impl_from_IDirectDrawSurface2(attachment);
 
    TRACE("iface %p, flags %#x, attachment %p.\n", iface, flags, attachment);
 
    return ddraw_surface_delete_attached_surface(surface, attachment_impl, (IUnknown *)attachment);
}
 
static HRESULT WINAPI ddraw_surface1_DeleteAttachedSurface(IDirectDrawSurface *iface,
        DWORD flags, IDirectDrawSurface *attachment)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
    struct ddraw_surface *attachment_impl = unsafe_impl_from_IDirectDrawSurface(attachment);
 
    TRACE("iface %p, flags %#x, attachment %p.\n", iface, flags, attachment);
 
    return ddraw_surface_delete_attached_surface(surface, attachment_impl, (IUnknown *)attachment);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::AddOverlayDirtyRect
 *
 * "This method is not currently implemented"
 *
 * Params:
 *  Rect: ?
 *
 * Returns:
 *  DDERR_UNSUPPORTED
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_AddOverlayDirtyRect(IDirectDrawSurface7 *iface, RECT *Rect)
{
    TRACE("iface %p, rect %s.\n", iface, wine_dbgstr_rect(Rect));
 
    return DDERR_UNSUPPORTED; /* unchecked */
}
 
static HRESULT WINAPI ddraw_surface4_AddOverlayDirtyRect(IDirectDrawSurface4 *iface, RECT *rect)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, rect %s.\n", iface, wine_dbgstr_rect(rect));
 
    return ddraw_surface7_AddOverlayDirtyRect(&surface->IDirectDrawSurface7_iface, rect);
}
 
static HRESULT WINAPI ddraw_surface3_AddOverlayDirtyRect(IDirectDrawSurface3 *iface, RECT *rect)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, rect %s.\n", iface, wine_dbgstr_rect(rect));
 
    return ddraw_surface7_AddOverlayDirtyRect(&surface->IDirectDrawSurface7_iface, rect);
}
 
static HRESULT WINAPI ddraw_surface2_AddOverlayDirtyRect(IDirectDrawSurface2 *iface, RECT *rect)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, rect %s.\n", iface, wine_dbgstr_rect(rect));
 
    return ddraw_surface7_AddOverlayDirtyRect(&surface->IDirectDrawSurface7_iface, rect);
}
 
static HRESULT WINAPI ddraw_surface1_AddOverlayDirtyRect(IDirectDrawSurface *iface, RECT *rect)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, rect %s.\n", iface, wine_dbgstr_rect(rect));
 
    return ddraw_surface7_AddOverlayDirtyRect(&surface->IDirectDrawSurface7_iface, rect);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::GetDC
 *
 * Returns a GDI device context for the surface
 *
 * Params:
 *  hdc: Address of a HDC variable to store the dc to
 *
 * Returns:
 *  DD_OK on success
 *  DDERR_INVALIDPARAMS if hdc is NULL
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_GetDC(IDirectDrawSurface7 *iface, HDC *dc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    HRESULT hr = DD_OK;
 
    TRACE("iface %p, dc %p.\n", iface, dc);
 
    if (!dc)
        return DDERR_INVALIDPARAMS;
 
    wined3d_mutex_lock();
    if (surface->dc)
        hr = DDERR_DCALREADYCREATED;
    else if (surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
        hr = ddraw_surface_update_frontbuffer(surface, NULL, TRUE, 0);
    if (SUCCEEDED(hr))
        hr = wined3d_texture_get_dc(surface->wined3d_texture, surface->sub_resource_idx, dc);
 
    if (SUCCEEDED(hr))
    {
        surface->dc = *dc;
 
        if (format_is_paletteindexed(&surface->surface_desc.u4.ddpfPixelFormat))
        {
            const struct ddraw_palette *palette;
 
            if (surface->palette)
                palette = surface->palette;
            else if (surface->ddraw->primary)
                palette = surface->ddraw->primary->palette;
            else
                palette = NULL;
 
            if (palette)
                wined3d_palette_apply_to_dc(palette->wined3d_palette, *dc);
        }
    }
 
    wined3d_mutex_unlock();
    switch (hr)
    {
        /* Some, but not all errors set *dc to NULL. E.g. DCALREADYCREATED
         * does not touch *dc. */
        case WINED3DERR_INVALIDCALL:
            *dc = NULL;
            return DDERR_CANTCREATEDC;
 
        default:
            return hr;
    }
}
 
static HRESULT WINAPI ddraw_surface4_GetDC(IDirectDrawSurface4 *iface, HDC *dc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, dc %p.\n", iface, dc);
 
    return ddraw_surface7_GetDC(&surface->IDirectDrawSurface7_iface, dc);
}
 
static HRESULT WINAPI ddraw_surface3_GetDC(IDirectDrawSurface3 *iface, HDC *dc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, dc %p.\n", iface, dc);
 
    return ddraw_surface7_GetDC(&surface->IDirectDrawSurface7_iface, dc);
}
 
static HRESULT WINAPI ddraw_surface2_GetDC(IDirectDrawSurface2 *iface, HDC *dc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, dc %p.\n", iface, dc);
 
    return ddraw_surface7_GetDC(&surface->IDirectDrawSurface7_iface, dc);
}
 
static HRESULT WINAPI ddraw_surface1_GetDC(IDirectDrawSurface *iface, HDC *dc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, dc %p.\n", iface, dc);
 
    return ddraw_surface7_GetDC(&surface->IDirectDrawSurface7_iface, dc);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::ReleaseDC
 *
 * Releases the DC that was constructed with GetDC
 *
 * Params:
 *  hdc: HDC to release
 *
 * Returns:
 *  DD_OK on success, error code otherwise.
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_ReleaseDC(IDirectDrawSurface7 *iface, HDC hdc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    HRESULT hr;
 
    TRACE("iface %p, dc %p.\n", iface, hdc);
#ifdef __REACTOS__
    GdiFlush();
#endif
    wined3d_mutex_lock();
    if (!surface->dc)
    {
        hr = DDERR_NODC;
    }
    else if (SUCCEEDED(hr = wined3d_texture_release_dc(surface->wined3d_texture, surface->sub_resource_idx, hdc)))
    {
        surface->dc = NULL;
        if (surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
            hr = ddraw_surface_update_frontbuffer(surface, NULL, FALSE, 0);
    }
    wined3d_mutex_unlock();
 
 
    return hr;
}
 
static HRESULT WINAPI ddraw_surface4_ReleaseDC(IDirectDrawSurface4 *iface, HDC dc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, dc %p.\n", iface, dc);
 
    return ddraw_surface7_ReleaseDC(&surface->IDirectDrawSurface7_iface, dc);
}
 
static HRESULT WINAPI ddraw_surface3_ReleaseDC(IDirectDrawSurface3 *iface, HDC dc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, dc %p.\n", iface, dc);
 
    return ddraw_surface7_ReleaseDC(&surface->IDirectDrawSurface7_iface, dc);
}
 
static HRESULT WINAPI ddraw_surface2_ReleaseDC(IDirectDrawSurface2 *iface, HDC dc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, dc %p.\n", iface, dc);
 
    return ddraw_surface7_ReleaseDC(&surface->IDirectDrawSurface7_iface, dc);
}
 
static HRESULT WINAPI ddraw_surface1_ReleaseDC(IDirectDrawSurface *iface, HDC dc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, dc %p.\n", iface, dc);
 
    return ddraw_surface7_ReleaseDC(&surface->IDirectDrawSurface7_iface, dc);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::GetCaps
 *
 * Returns the surface's caps
 *
 * Params:
 *  Caps: Address to write the caps to
 *
 * Returns:
 *  DD_OK on success
 *  DDERR_INVALIDPARAMS if Caps is NULL
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_GetCaps(IDirectDrawSurface7 *iface, DDSCAPS2 *Caps)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
 
    TRACE("iface %p, caps %p.\n", iface, Caps);
 
    if(!Caps)
        return DDERR_INVALIDPARAMS;
 
    *Caps = surface->surface_desc.ddsCaps;
 
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface4_GetCaps(IDirectDrawSurface4 *iface, DDSCAPS2 *caps)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, caps %p.\n", iface, caps);
 
    return ddraw_surface7_GetCaps(&surface->IDirectDrawSurface7_iface, caps);
}
 
static HRESULT WINAPI ddraw_surface3_GetCaps(IDirectDrawSurface3 *iface, DDSCAPS *caps)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
    DDSCAPS2 caps2;
    HRESULT hr;
 
    TRACE("iface %p, caps %p.\n", iface, caps);
 
    hr = ddraw_surface7_GetCaps(&surface->IDirectDrawSurface7_iface, &caps2);
    if (FAILED(hr)) return hr;
 
    caps->dwCaps = caps2.dwCaps;
    return hr;
}
 
static HRESULT WINAPI ddraw_surface2_GetCaps(IDirectDrawSurface2 *iface, DDSCAPS *caps)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
    DDSCAPS2 caps2;
    HRESULT hr;
 
    TRACE("iface %p, caps %p.\n", iface, caps);
 
    hr = ddraw_surface7_GetCaps(&surface->IDirectDrawSurface7_iface, &caps2);
    if (FAILED(hr)) return hr;
 
    caps->dwCaps = caps2.dwCaps;
    return hr;
}
 
static HRESULT WINAPI ddraw_surface1_GetCaps(IDirectDrawSurface *iface, DDSCAPS *caps)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
    DDSCAPS2 caps2;
    HRESULT hr;
 
    TRACE("iface %p, caps %p.\n", iface, caps);
 
    hr = ddraw_surface7_GetCaps(&surface->IDirectDrawSurface7_iface, &caps2);
    if (FAILED(hr)) return hr;
 
    caps->dwCaps = caps2.dwCaps;
    return hr;
}
 
static HRESULT WINAPI ddraw_surface7_SetPriority(IDirectDrawSurface7 *iface, DWORD priority)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    DWORD managed = DDSCAPS2_TEXTUREMANAGE | DDSCAPS2_D3DTEXTUREMANAGE;
    HRESULT hr;
    struct wined3d_resource *resource;
 
    TRACE("iface %p, priority %u.\n", iface, priority);
 
    wined3d_mutex_lock();
    /* No need to check for offscreen plain surfaces or mipmap sublevels. SetPriority
     * calls on such surfaces segfault on Windows. */
    if (!(surface->surface_desc.ddsCaps.dwCaps2 & managed))
    {
        WARN("Called on non-managed texture returning DDERR_INVALIDPARAMS.\n");
        hr = DDERR_INVALIDPARAMS;
    }
    else
    {
        resource = wined3d_texture_get_resource(surface->wined3d_texture);
        wined3d_resource_set_priority(resource, priority);
        hr = DD_OK;
    }
    wined3d_mutex_unlock();
 
    return hr;
}
 
static HRESULT WINAPI ddraw_surface7_GetPriority(IDirectDrawSurface7 *iface, DWORD *priority)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    const struct wined3d_resource *resource;
    DWORD managed = DDSCAPS2_TEXTUREMANAGE | DDSCAPS2_D3DTEXTUREMANAGE;
    HRESULT hr;
 
    TRACE("iface %p, priority %p.\n", iface, priority);
 
    wined3d_mutex_lock();
    if (surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_OFFSCREENPLAIN)
    {
        WARN("Called on offscreenplain surface, returning DDERR_INVALIDOBJECT.\n");
        hr = DDERR_INVALIDOBJECT;
    }
    else if (!(surface->surface_desc.ddsCaps.dwCaps2 & managed) || !surface->is_complex_root)
    {
        WARN("Called on non-managed texture or non-root surface, returning DDERR_INVALIDPARAMS.\n");
        hr = DDERR_INVALIDPARAMS;
    }
    else
    {
        resource = wined3d_texture_get_resource(surface->wined3d_texture);
        *priority = wined3d_resource_get_priority(resource);
        hr = DD_OK;
    }
    wined3d_mutex_unlock();
 
    return hr;
}
 
/*****************************************************************************
 * IDirectDrawSurface7::SetPrivateData
 *
 * Stores some data in the surface that is intended for the application's
 * use.
 *
 * Params:
 *  tag: GUID that identifies the data
 *  Data: Pointer to the private data
 *  Size: Size of the private data
 *  Flags: Some flags
 *
 * Returns:
 *  D3D_OK on success, error code otherwise.
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_SetPrivateData(IDirectDrawSurface7 *iface,
        REFGUID tag, void *data, DWORD size, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    HRESULT hr;
 
    TRACE("iface %p, tag %s, data %p, data_size %u, flags %#x.\n",
            iface, debugstr_guid(tag), data, size, flags);
 
    if (!data)
    {
        WARN("data is NULL, returning DDERR_INVALIDPARAMS.\n");
        return DDERR_INVALIDPARAMS;
    }
 
    wined3d_mutex_lock();
    hr = wined3d_private_store_set_private_data(&surface->private_store, tag, data, size, flags);
    wined3d_mutex_unlock();
    return hr_ddraw_from_wined3d(hr);
}
 
static HRESULT WINAPI ddraw_surface4_SetPrivateData(IDirectDrawSurface4 *iface,
        REFGUID tag, void *data, DWORD size, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, tag %s, data %p, data_size %u, flags %#x.\n",
                iface, debugstr_guid(tag), data, size, flags);
 
    return ddraw_surface7_SetPrivateData(&surface->IDirectDrawSurface7_iface, tag, data, size, flags);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::GetPrivateData
 *
 * Returns the private data set with IDirectDrawSurface7::SetPrivateData
 *
 * Params:
 *  tag: GUID of the data to return
 *  Data: Address where to write the data to
 *  Size: Size of the buffer at Data
 *
 * Returns:
 *  DD_OK on success
 *  DDERR_INVALIDPARAMS if Data is NULL
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_GetPrivateData(IDirectDrawSurface7 *iface, REFGUID tag, void *data, DWORD *size)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    const struct wined3d_private_data *stored_data;
    HRESULT hr;
 
    TRACE("iface %p, tag %s, data %p, data_size %p.\n",
            iface, debugstr_guid(tag), data, size);
 
    wined3d_mutex_lock();
    stored_data = wined3d_private_store_get_private_data(&surface->private_store, tag);
    if (!stored_data)
    {
        hr = DDERR_NOTFOUND;
        goto done;
    }
    if (!size)
    {
        hr = DDERR_INVALIDPARAMS;
        goto done;
    }
    if (*size < stored_data->size)
    {
        *size = stored_data->size;
        hr = DDERR_MOREDATA;
        goto done;
    }
    if (!data)
    {
        hr = DDERR_INVALIDPARAMS;
        goto done;
    }
 
    *size = stored_data->size;
    memcpy(data, stored_data->content.data, stored_data->size);
    hr = DD_OK;
 
done:
    wined3d_mutex_unlock();
    return hr;
}
 
static HRESULT WINAPI ddraw_surface4_GetPrivateData(IDirectDrawSurface4 *iface, REFGUID tag, void *data, DWORD *size)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, tag %s, data %p, data_size %p.\n",
                iface, debugstr_guid(tag), data, size);
 
    return ddraw_surface7_GetPrivateData(&surface->IDirectDrawSurface7_iface, tag, data, size);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::FreePrivateData
 *
 * Frees private data stored in the surface
 *
 * Params:
 *  tag: Tag of the data to free
 *
 * Returns:
 *  D3D_OK on success, error code otherwise.
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_FreePrivateData(IDirectDrawSurface7 *iface, REFGUID tag)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    struct wined3d_private_data *entry;
 
    TRACE("iface %p, tag %s.\n", iface, debugstr_guid(tag));
 
    wined3d_mutex_lock();
    entry = wined3d_private_store_get_private_data(&surface->private_store, tag);
    if (!entry)
    {
        wined3d_mutex_unlock();
        return DDERR_NOTFOUND;
    }
 
    wined3d_private_store_free_private_data(&surface->private_store, entry);
    wined3d_mutex_unlock();
 
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface4_FreePrivateData(IDirectDrawSurface4 *iface, REFGUID tag)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, tag %s.\n", iface, debugstr_guid(tag));
 
    return ddraw_surface7_FreePrivateData(&surface->IDirectDrawSurface7_iface, tag);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::PageLock
 *
 * Prevents a sysmem surface from being paged out
 *
 * Params:
 *  Flags: Not used, must be 0(unchecked)
 *
 * Returns:
 *  DD_OK, because it's a stub
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_PageLock(IDirectDrawSurface7 *iface, DWORD Flags)
{
    TRACE("iface %p, flags %#x.\n", iface, Flags);
 
    /* This is Windows memory management related - we don't need this */
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface4_PageLock(IDirectDrawSurface4 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_PageLock(&surface->IDirectDrawSurface7_iface, flags);
}
 
static HRESULT WINAPI ddraw_surface3_PageLock(IDirectDrawSurface3 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_PageLock(&surface->IDirectDrawSurface7_iface, flags);
}
 
static HRESULT WINAPI ddraw_surface2_PageLock(IDirectDrawSurface2 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_PageLock(&surface->IDirectDrawSurface7_iface, flags);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::PageUnlock
 *
 * Allows a sysmem surface to be paged out
 *
 * Params:
 *  Flags: Not used, must be 0(unchecked)
 *
 * Returns:
 *  DD_OK, because it's a stub
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_PageUnlock(IDirectDrawSurface7 *iface, DWORD Flags)
{
    TRACE("iface %p, flags %#x.\n", iface, Flags);
 
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface4_PageUnlock(IDirectDrawSurface4 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_PageUnlock(&surface->IDirectDrawSurface7_iface, flags);
}
 
static HRESULT WINAPI ddraw_surface3_PageUnlock(IDirectDrawSurface3 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_PageUnlock(&surface->IDirectDrawSurface7_iface, flags);
}
 
static HRESULT WINAPI ddraw_surface2_PageUnlock(IDirectDrawSurface2 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_PageUnlock(&surface->IDirectDrawSurface7_iface, flags);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::BltBatch
 *
 * An unimplemented function
 *
 * Params:
 *  ?
 *
 * Returns:
 *  DDERR_UNSUPPORTED
 *
 *****************************************************************************/
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface7_BltBatch(IDirectDrawSurface7 *iface, DDBLTBATCH *Batch, DWORD Count, DWORD Flags)
{
    TRACE("iface %p, batch %p, count %u, flags %#x.\n", iface, Batch, Count, Flags);
 
    /* MSDN: "not currently implemented" */
    return DDERR_UNSUPPORTED;
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface4_BltBatch(IDirectDrawSurface4 *iface, DDBLTBATCH *batch, DWORD count, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, batch %p, count %u, flags %#x.\n", iface, batch, count, flags);
 
    return ddraw_surface7_BltBatch(&surface->IDirectDrawSurface7_iface, batch, count, flags);
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface3_BltBatch(IDirectDrawSurface3 *iface, DDBLTBATCH *batch, DWORD count, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, batch %p, count %u, flags %#x.\n", iface, batch, count, flags);
 
    return ddraw_surface7_BltBatch(&surface->IDirectDrawSurface7_iface, batch, count, flags);
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface2_BltBatch(IDirectDrawSurface2 *iface, DDBLTBATCH *batch, DWORD count, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, batch %p, count %u, flags %#x.\n", iface, batch, count, flags);
 
    return ddraw_surface7_BltBatch(&surface->IDirectDrawSurface7_iface, batch, count, flags);
}
 
static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface1_BltBatch(IDirectDrawSurface *iface, DDBLTBATCH *batch, DWORD count, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, batch %p, count %u, flags %#x.\n", iface, batch, count, flags);
 
    return ddraw_surface7_BltBatch(&surface->IDirectDrawSurface7_iface, batch, count, flags);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::EnumAttachedSurfaces
 *
 * Enumerates all surfaces attached to this surface
 *
 * Params:
 *  context: Pointer to pass unmodified to the callback
 *  cb: Callback function to call for each surface
 *
 * Returns:
 *  DD_OK on success
 *  DDERR_INVALIDPARAMS if cb is NULL
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_EnumAttachedSurfaces(IDirectDrawSurface7 *iface,
        void *context, LPDDENUMSURFACESCALLBACK7 cb)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    struct ddraw_surface *surf;
    DDSURFACEDESC2 desc;
    int i;
 
    /* Attached surfaces aren't handled in WineD3D */
    TRACE("iface %p, context %p, callback %p.\n", iface, context, cb);
 
    if(!cb)
        return DDERR_INVALIDPARAMS;
 
    wined3d_mutex_lock();
 
    for(i = 0; i < MAX_COMPLEX_ATTACHED; i++)
    {
        surf = surface->complex_array[i];
        if(!surf) break;
 
        ddraw_surface7_AddRef(&surf->IDirectDrawSurface7_iface);
        desc = surf->surface_desc;
        /* check: != DDENUMRET_OK or == DDENUMRET_CANCEL? */
        if (cb(&surf->IDirectDrawSurface7_iface, &desc, context) == DDENUMRET_CANCEL)
        {
            wined3d_mutex_unlock();
            return DD_OK;
        }
    }
 
    for (surf = surface->next_attached; surf != NULL; surf = surf->next_attached)
    {
        ddraw_surface7_AddRef(&surf->IDirectDrawSurface7_iface);
        desc = surf->surface_desc;
        /* check: != DDENUMRET_OK or == DDENUMRET_CANCEL? */
        if (cb(&surf->IDirectDrawSurface7_iface, &desc, context) == DDENUMRET_CANCEL)
        {
            wined3d_mutex_unlock();
            return DD_OK;
        }
    }
 
    TRACE(" end of enumeration.\n");
 
    wined3d_mutex_unlock();
 
    return DD_OK;
}
 
struct callback_info2
{
    LPDDENUMSURFACESCALLBACK2 callback;
    void *context;
};
 
struct callback_info
{
    LPDDENUMSURFACESCALLBACK callback;
    void *context;
};
 
static HRESULT CALLBACK EnumCallback2(IDirectDrawSurface7 *surface, DDSURFACEDESC2 *surface_desc, void *context)
{
    struct ddraw_surface *surface_impl = impl_from_IDirectDrawSurface7(surface);
    const struct callback_info2 *info = context;
 
    ddraw_surface4_AddRef(&surface_impl->IDirectDrawSurface4_iface);
    ddraw_surface7_Release(surface);
 
    return info->callback(&surface_impl->IDirectDrawSurface4_iface, surface_desc, info->context);
}
 
static HRESULT CALLBACK EnumCallback(IDirectDrawSurface7 *surface, DDSURFACEDESC2 *surface_desc, void *context)
{
    struct ddraw_surface *surface_impl = impl_from_IDirectDrawSurface7(surface);
    const struct callback_info *info = context;
 
    ddraw_surface1_AddRef(&surface_impl->IDirectDrawSurface_iface);
    ddraw_surface7_Release(surface);
 
    /* FIXME: Check surface_test.dwSize */
    return info->callback(&surface_impl->IDirectDrawSurface_iface,
            (DDSURFACEDESC *)surface_desc, info->context);
}
 
static HRESULT WINAPI ddraw_surface4_EnumAttachedSurfaces(IDirectDrawSurface4 *iface,
        void *context, LPDDENUMSURFACESCALLBACK2 callback)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
    struct callback_info2 info;
 
    TRACE("iface %p, context %p, callback %p.\n", iface, context, callback);
 
    info.callback = callback;
    info.context  = context;
 
    return ddraw_surface7_EnumAttachedSurfaces(&surface->IDirectDrawSurface7_iface,
            &info, EnumCallback2);
}
 
static HRESULT WINAPI ddraw_surface3_EnumAttachedSurfaces(IDirectDrawSurface3 *iface,
        void *context, LPDDENUMSURFACESCALLBACK callback)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
    struct callback_info info;
 
    TRACE("iface %p, context %p, callback %p.\n", iface, context, callback);
 
    info.callback = callback;
    info.context  = context;
 
    return ddraw_surface7_EnumAttachedSurfaces(&surface->IDirectDrawSurface7_iface,
            &info, EnumCallback);
}
 
static HRESULT WINAPI ddraw_surface2_EnumAttachedSurfaces(IDirectDrawSurface2 *iface,
        void *context, LPDDENUMSURFACESCALLBACK callback)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
    struct callback_info info;
 
    TRACE("iface %p, context %p, callback %p.\n", iface, context, callback);
 
    info.callback = callback;
    info.context  = context;
 
    return ddraw_surface7_EnumAttachedSurfaces(&surface->IDirectDrawSurface7_iface,
            &info, EnumCallback);
}
 
static HRESULT WINAPI ddraw_surface1_EnumAttachedSurfaces(IDirectDrawSurface *iface,
        void *context, LPDDENUMSURFACESCALLBACK callback)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
    struct callback_info info;
 
    TRACE("iface %p, context %p, callback %p.\n", iface, context, callback);
 
    info.callback = callback;
    info.context  = context;
 
    return ddraw_surface7_EnumAttachedSurfaces(&surface->IDirectDrawSurface7_iface,
            &info, EnumCallback);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::EnumOverlayZOrders
 *
 * "Enumerates the overlay surfaces on the specified destination"
 *
 * Params:
 *  Flags: DDENUMOVERLAYZ_BACKTOFRONT  or DDENUMOVERLAYZ_FRONTTOBACK
 *  context: context to pass back to the callback
 *  cb: callback function to call for each enumerated surface
 *
 * Returns:
 *  DD_OK, because it's a stub
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_EnumOverlayZOrders(IDirectDrawSurface7 *iface,
        DWORD Flags, void *context, LPDDENUMSURFACESCALLBACK7 cb)
{
    FIXME("iface %p, flags %#x, context %p, callback %p stub!\n", iface, Flags, context, cb);
 
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface4_EnumOverlayZOrders(IDirectDrawSurface4 *iface,
        DWORD flags, void *context, LPDDENUMSURFACESCALLBACK2 callback)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
    struct callback_info2 info;
 
    TRACE("iface %p, flags %#x, context %p, callback %p.\n", iface, flags, context, callback);
 
    info.callback = callback;
    info.context  = context;
 
    return ddraw_surface7_EnumOverlayZOrders(&surface->IDirectDrawSurface7_iface,
            flags, &info, EnumCallback2);
}
 
static HRESULT WINAPI ddraw_surface3_EnumOverlayZOrders(IDirectDrawSurface3 *iface,
        DWORD flags, void *context, LPDDENUMSURFACESCALLBACK callback)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
    struct callback_info info;
 
    TRACE("iface %p, flags %#x, context %p, callback %p.\n", iface, flags, context, callback);
 
    info.callback = callback;
    info.context  = context;
 
    return ddraw_surface7_EnumOverlayZOrders(&surface->IDirectDrawSurface7_iface,
            flags, &info, EnumCallback);
}
 
static HRESULT WINAPI ddraw_surface2_EnumOverlayZOrders(IDirectDrawSurface2 *iface,
        DWORD flags, void *context, LPDDENUMSURFACESCALLBACK callback)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
    struct callback_info info;
 
    TRACE("iface %p, flags %#x, context %p, callback %p.\n", iface, flags, context, callback);
 
    info.callback = callback;
    info.context  = context;
 
    return ddraw_surface7_EnumOverlayZOrders(&surface->IDirectDrawSurface7_iface,
            flags, &info, EnumCallback);
}
 
static HRESULT WINAPI ddraw_surface1_EnumOverlayZOrders(IDirectDrawSurface *iface,
        DWORD flags, void *context, LPDDENUMSURFACESCALLBACK callback)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
    struct callback_info info;
 
    TRACE("iface %p, flags %#x, context %p, callback %p.\n", iface, flags, context, callback);
 
    info.callback = callback;
    info.context  = context;
 
    return ddraw_surface7_EnumOverlayZOrders(&surface->IDirectDrawSurface7_iface,
            flags, &info, EnumCallback);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::GetBltStatus
 *
 * Returns the blitting status
 *
 * Params:
 *  Flags: DDGBS_CANBLT or DDGBS_ISBLTDONE
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_GetBltStatus(IDirectDrawSurface7 *iface, DWORD Flags)
{
    TRACE("iface %p, flags %#x.\n", iface, Flags);
 
    switch (Flags)
    {
        case WINEDDGBS_CANBLT:
        case WINEDDGBS_ISBLTDONE:
            return DD_OK;
 
        default:
            return DDERR_INVALIDPARAMS;
    }
}
 
static HRESULT WINAPI ddraw_surface4_GetBltStatus(IDirectDrawSurface4 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_GetBltStatus(&surface->IDirectDrawSurface7_iface, flags);
}
 
static HRESULT WINAPI ddraw_surface3_GetBltStatus(IDirectDrawSurface3 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_GetBltStatus(&surface->IDirectDrawSurface7_iface, flags);
}
 
static HRESULT WINAPI ddraw_surface2_GetBltStatus(IDirectDrawSurface2 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_GetBltStatus(&surface->IDirectDrawSurface7_iface, flags);
}
 
static HRESULT WINAPI ddraw_surface1_GetBltStatus(IDirectDrawSurface *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_GetBltStatus(&surface->IDirectDrawSurface7_iface, flags);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::GetColorKey
 *
 * Returns the color key assigned to the surface
 *
 * Params:
 *  Flags: Some flags
 *  CKey: Address to store the key to
 *
 * Returns:
 *  DD_OK on success
 *  DDERR_INVALIDPARAMS if CKey is NULL
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_GetColorKey(IDirectDrawSurface7 *iface, DWORD Flags, DDCOLORKEY *CKey)
{
    struct ddraw_surface *This = impl_from_IDirectDrawSurface7(iface);
 
    TRACE("iface %p, flags %#x, color_key %p.\n", iface, Flags, CKey);
 
    if(!CKey)
        return DDERR_INVALIDPARAMS;
 
    wined3d_mutex_lock();
 
    switch (Flags)
    {
    case DDCKEY_DESTBLT:
        if (!(This->surface_desc.dwFlags & DDSD_CKDESTBLT))
        {
            wined3d_mutex_unlock();
            return DDERR_NOCOLORKEY;
        }
        *CKey = This->surface_desc.ddckCKDestBlt;
        break;
 
    case DDCKEY_DESTOVERLAY:
        if (!(This->surface_desc.dwFlags & DDSD_CKDESTOVERLAY))
        {
            wined3d_mutex_unlock();
            return DDERR_NOCOLORKEY;
        }
        *CKey = This->surface_desc.u3.ddckCKDestOverlay;
        break;
 
    case DDCKEY_SRCBLT:
        if (!(This->surface_desc.dwFlags & DDSD_CKSRCBLT))
        {
            wined3d_mutex_unlock();
            return DDERR_NOCOLORKEY;
        }
        *CKey = This->surface_desc.ddckCKSrcBlt;
        break;
 
    case DDCKEY_SRCOVERLAY:
        if (!(This->surface_desc.dwFlags & DDSD_CKSRCOVERLAY))
        {
            wined3d_mutex_unlock();
            return DDERR_NOCOLORKEY;
        }
        *CKey = This->surface_desc.ddckCKSrcOverlay;
        break;
 
    default:
        wined3d_mutex_unlock();
        return DDERR_INVALIDPARAMS;
    }
 
    wined3d_mutex_unlock();
 
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface4_GetColorKey(IDirectDrawSurface4 *iface, DWORD flags, DDCOLORKEY *color_key)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, flags %#x, color_key %p.\n", iface, flags, color_key);
 
    return ddraw_surface7_GetColorKey(&surface->IDirectDrawSurface7_iface, flags, color_key);
}
 
static HRESULT WINAPI ddraw_surface3_GetColorKey(IDirectDrawSurface3 *iface, DWORD flags, DDCOLORKEY *color_key)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, flags %#x, color_key %p.\n", iface, flags, color_key);
 
    return ddraw_surface7_GetColorKey(&surface->IDirectDrawSurface7_iface, flags, color_key);
}
 
static HRESULT WINAPI ddraw_surface2_GetColorKey(IDirectDrawSurface2 *iface, DWORD flags, DDCOLORKEY *color_key)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, flags %#x, color_key %p.\n", iface, flags, color_key);
 
    return ddraw_surface7_GetColorKey(&surface->IDirectDrawSurface7_iface, flags, color_key);
}
 
static HRESULT WINAPI ddraw_surface1_GetColorKey(IDirectDrawSurface *iface, DWORD flags, DDCOLORKEY *color_key)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, flags %#x, color_key %p.\n", iface, flags, color_key);
 
    return ddraw_surface7_GetColorKey(&surface->IDirectDrawSurface7_iface, flags, color_key);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::GetFlipStatus
 *
 * Returns the flipping status of the surface
 *
 * Params:
 *  Flags: DDGFS_CANFLIP of DDGFS_ISFLIPDONE
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_GetFlipStatus(IDirectDrawSurface7 *iface, DWORD Flags)
{
    TRACE("iface %p, flags %#x.\n", iface, Flags);
 
    /* XXX: DDERR_INVALIDSURFACETYPE */
 
    switch (Flags)
    {
        case WINEDDGFS_CANFLIP:
        case WINEDDGFS_ISFLIPDONE:
            return DD_OK;
 
        default:
            return DDERR_INVALIDPARAMS;
    }
}
 
static HRESULT WINAPI ddraw_surface4_GetFlipStatus(IDirectDrawSurface4 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_GetFlipStatus(&surface->IDirectDrawSurface7_iface, flags);
}
 
static HRESULT WINAPI ddraw_surface3_GetFlipStatus(IDirectDrawSurface3 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_GetFlipStatus(&surface->IDirectDrawSurface7_iface, flags);
}
 
static HRESULT WINAPI ddraw_surface2_GetFlipStatus(IDirectDrawSurface2 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_GetFlipStatus(&surface->IDirectDrawSurface7_iface, flags);
}
 
static HRESULT WINAPI ddraw_surface1_GetFlipStatus(IDirectDrawSurface *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_GetFlipStatus(&surface->IDirectDrawSurface7_iface, flags);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::GetOverlayPosition
 *
 * Returns the display coordinates of a visible and active overlay surface
 *
 * Params:
 *  X
 *  Y
 *
 * Returns:
 *  DDERR_NOTAOVERLAYSURFACE, because it's a stub
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_GetOverlayPosition(IDirectDrawSurface7 *iface, LONG *x, LONG *y)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    HRESULT hr;
 
    TRACE("iface %p, x %p, y %p.\n", iface, x, y);
 
    wined3d_mutex_lock();
    hr = wined3d_texture_get_overlay_position(surface->wined3d_texture,
            surface->sub_resource_idx, x, y);
    wined3d_mutex_unlock();
 
    return hr;
}
 
static HRESULT WINAPI ddraw_surface4_GetOverlayPosition(IDirectDrawSurface4 *iface, LONG *x, LONG *y)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, x %p, y %p.\n", iface, x, y);
 
    return ddraw_surface7_GetOverlayPosition(&surface->IDirectDrawSurface7_iface, x, y);
}
 
static HRESULT WINAPI ddraw_surface3_GetOverlayPosition(IDirectDrawSurface3 *iface, LONG *x, LONG *y)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, x %p, y %p.\n", iface, x, y);
 
    return ddraw_surface7_GetOverlayPosition(&surface->IDirectDrawSurface7_iface, x, y);
}
 
static HRESULT WINAPI ddraw_surface2_GetOverlayPosition(IDirectDrawSurface2 *iface, LONG *x, LONG *y)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, x %p, y %p.\n", iface, x, y);
 
    return ddraw_surface7_GetOverlayPosition(&surface->IDirectDrawSurface7_iface, x, y);
}
 
static HRESULT WINAPI ddraw_surface1_GetOverlayPosition(IDirectDrawSurface *iface, LONG *x, LONG *y)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, x %p, y %p.\n", iface, x, y);
 
    return ddraw_surface7_GetOverlayPosition(&surface->IDirectDrawSurface7_iface, x, y);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::GetPixelFormat
 *
 * Returns the pixel format of the Surface
 *
 * Params:
 *  PixelFormat: Pointer to a DDPIXELFORMAT structure to which the pixel
 *               format should be written
 *
 * Returns:
 *  DD_OK on success
 *  DDERR_INVALIDPARAMS if PixelFormat is NULL
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_GetPixelFormat(IDirectDrawSurface7 *iface, DDPIXELFORMAT *PixelFormat)
{
    /* What is DDERR_INVALIDSURFACETYPE for here? */
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
 
    TRACE("iface %p, pixel_format %p.\n", iface, PixelFormat);
 
    if(!PixelFormat)
        return DDERR_INVALIDPARAMS;
 
    wined3d_mutex_lock();
    DD_STRUCT_COPY_BYSIZE(PixelFormat, &surface->surface_desc.u4.ddpfPixelFormat);
    wined3d_mutex_unlock();
 
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface4_GetPixelFormat(IDirectDrawSurface4 *iface, DDPIXELFORMAT *pixel_format)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, pixel_format %p.\n", iface, pixel_format);
 
    return ddraw_surface7_GetPixelFormat(&surface->IDirectDrawSurface7_iface, pixel_format);
}
 
static HRESULT WINAPI ddraw_surface3_GetPixelFormat(IDirectDrawSurface3 *iface, DDPIXELFORMAT *pixel_format)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, pixel_format %p.\n", iface, pixel_format);
 
    return ddraw_surface7_GetPixelFormat(&surface->IDirectDrawSurface7_iface, pixel_format);
}
 
static HRESULT WINAPI ddraw_surface2_GetPixelFormat(IDirectDrawSurface2 *iface, DDPIXELFORMAT *pixel_format)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, pixel_format %p.\n", iface, pixel_format);
 
    return ddraw_surface7_GetPixelFormat(&surface->IDirectDrawSurface7_iface, pixel_format);
}
 
static HRESULT WINAPI ddraw_surface1_GetPixelFormat(IDirectDrawSurface *iface, DDPIXELFORMAT *pixel_format)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, pixel_format %p.\n", iface, pixel_format);
 
    return ddraw_surface7_GetPixelFormat(&surface->IDirectDrawSurface7_iface, pixel_format);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::GetSurfaceDesc
 *
 * Returns the description of this surface
 *
 * Params:
 *  DDSD: Address of a DDSURFACEDESC2 structure that is to be filled with the
 *        surface desc
 *
 * Returns:
 *  DD_OK on success
 *  DDERR_INVALIDPARAMS if DDSD is NULL
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_GetSurfaceDesc(IDirectDrawSurface7 *iface, DDSURFACEDESC2 *DDSD)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
 
    TRACE("iface %p, surface_desc %p.\n", iface, DDSD);
 
    if(!DDSD)
        return DDERR_INVALIDPARAMS;
 
    if (DDSD->dwSize != sizeof(DDSURFACEDESC2))
    {
        WARN("Incorrect struct size %d, returning DDERR_INVALIDPARAMS\n",DDSD->dwSize);
        return DDERR_INVALIDPARAMS;
    }
 
    wined3d_mutex_lock();
    DD_STRUCT_COPY_BYSIZE(DDSD, &surface->surface_desc);
    TRACE("Returning surface desc:\n");
    if (TRACE_ON(ddraw)) DDRAW_dump_surface_desc(DDSD);
    wined3d_mutex_unlock();
 
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface4_GetSurfaceDesc(IDirectDrawSurface4 *iface, DDSURFACEDESC2 *DDSD)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, surface_desc %p.\n", iface, DDSD);
 
    return ddraw_surface7_GetSurfaceDesc(&surface->IDirectDrawSurface7_iface, DDSD);
}
 
static HRESULT WINAPI ddraw_surface3_GetSurfaceDesc(IDirectDrawSurface3 *iface, DDSURFACEDESC *surface_desc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, surface_desc %p.\n", iface, surface_desc);
 
    if (!surface_desc) return DDERR_INVALIDPARAMS;
 
    if (surface_desc->dwSize != sizeof(DDSURFACEDESC))
    {
        WARN("Incorrect structure size %u, returning DDERR_INVALIDPARAMS.\n", surface_desc->dwSize);
        return DDERR_INVALIDPARAMS;
    }
 
    wined3d_mutex_lock();
    DDSD2_to_DDSD(&surface->surface_desc, surface_desc);
    TRACE("Returning surface desc:\n");
    if (TRACE_ON(ddraw))
    {
        /* DDRAW_dump_surface_desc handles the smaller size */
        DDRAW_dump_surface_desc((DDSURFACEDESC2 *)surface_desc);
    }
    wined3d_mutex_unlock();
 
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface2_GetSurfaceDesc(IDirectDrawSurface2 *iface, DDSURFACEDESC *DDSD)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, surface_desc %p.\n", iface, DDSD);
 
    return ddraw_surface3_GetSurfaceDesc(&surface->IDirectDrawSurface3_iface, DDSD);
}
 
static HRESULT WINAPI ddraw_surface1_GetSurfaceDesc(IDirectDrawSurface *iface, DDSURFACEDESC *DDSD)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, surface_desc %p.\n", iface, DDSD);
 
    return ddraw_surface3_GetSurfaceDesc(&surface->IDirectDrawSurface3_iface, DDSD);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::Initialize
 *
 * Initializes the surface. This is a no-op in Wine
 *
 * Params:
 *  DD: Pointer to an DirectDraw interface
 *  DDSD: Surface description for initialization
 *
 * Returns:
 *  DDERR_ALREADYINITIALIZED
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_Initialize(IDirectDrawSurface7 *iface,
        IDirectDraw *ddraw, DDSURFACEDESC2 *surface_desc)
{
    TRACE("iface %p, ddraw %p, surface_desc %p.\n", iface, ddraw, surface_desc);
 
    return DDERR_ALREADYINITIALIZED;
}
 
static HRESULT WINAPI ddraw_surface4_Initialize(IDirectDrawSurface4 *iface,
        IDirectDraw *ddraw, DDSURFACEDESC2 *surface_desc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, ddraw %p, surface_desc %p.\n", iface, ddraw, surface_desc);
 
    return ddraw_surface7_Initialize(&surface->IDirectDrawSurface7_iface,
            ddraw, surface_desc);
}
 
static HRESULT WINAPI ddraw_surface3_Initialize(IDirectDrawSurface3 *iface,
        IDirectDraw *ddraw, DDSURFACEDESC *surface_desc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
    DDSURFACEDESC2 surface_desc2;
 
    TRACE("iface %p, ddraw %p, surface_desc %p.\n", iface, ddraw, surface_desc);
 
    if (surface_desc) DDSD_to_DDSD2(surface_desc, &surface_desc2);
    return ddraw_surface7_Initialize(&surface->IDirectDrawSurface7_iface,
            ddraw, surface_desc ? &surface_desc2 : NULL);
}
 
static HRESULT WINAPI ddraw_surface2_Initialize(IDirectDrawSurface2 *iface,
        IDirectDraw *ddraw, DDSURFACEDESC *surface_desc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
    DDSURFACEDESC2 surface_desc2;
 
    TRACE("iface %p, ddraw %p, surface_desc %p.\n", iface, ddraw, surface_desc);
 
    if (surface_desc) DDSD_to_DDSD2(surface_desc, &surface_desc2);
    return ddraw_surface7_Initialize(&surface->IDirectDrawSurface7_iface,
            ddraw, surface_desc ? &surface_desc2 : NULL);
}
 
static HRESULT WINAPI ddraw_surface1_Initialize(IDirectDrawSurface *iface,
        IDirectDraw *ddraw, DDSURFACEDESC *surface_desc)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
    DDSURFACEDESC2 surface_desc2;
 
    TRACE("iface %p, ddraw %p, surface_desc %p.\n", iface, ddraw, surface_desc);
 
    if (surface_desc) DDSD_to_DDSD2(surface_desc, &surface_desc2);
    return ddraw_surface7_Initialize(&surface->IDirectDrawSurface7_iface,
            ddraw, surface_desc ? &surface_desc2 : NULL);
}
 
/*****************************************************************************
 * IDirect3DTexture1::Initialize
 *
 * The sdk says it's not implemented
 *
 * Params:
 *  ?
 *
 * Returns
 *  DDERR_UNSUPPORTED
 *
 *****************************************************************************/
static HRESULT WINAPI d3d_texture1_Initialize(IDirect3DTexture *iface,
        IDirect3DDevice *device, IDirectDrawSurface *surface)
{
    TRACE("iface %p, device %p, surface %p.\n", iface, device, surface);
 
    return DDERR_UNSUPPORTED; /* Unchecked */
}
 
/*****************************************************************************
 * IDirectDrawSurface7::IsLost
 *
 * Checks if the surface is lost
 *
 * Returns:
 *  DD_OK, if the surface is usable
 *  DDERR_ISLOST if the surface is lost
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_IsLost(IDirectDrawSurface7 *iface)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
 
    TRACE("iface %p.\n", iface);
 
    if (surface->ddraw->device_state != DDRAW_DEVICE_STATE_OK || surface->is_lost)
        return DDERR_SURFACELOST;
 
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface4_IsLost(IDirectDrawSurface4 *iface)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p.\n", iface);
 
    return ddraw_surface7_IsLost(&surface->IDirectDrawSurface7_iface);
}
 
static HRESULT WINAPI ddraw_surface3_IsLost(IDirectDrawSurface3 *iface)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p.\n", iface);
 
    return ddraw_surface7_IsLost(&surface->IDirectDrawSurface7_iface);
}
 
static HRESULT WINAPI ddraw_surface2_IsLost(IDirectDrawSurface2 *iface)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p.\n", iface);
 
    return ddraw_surface7_IsLost(&surface->IDirectDrawSurface7_iface);
}
 
static HRESULT WINAPI ddraw_surface1_IsLost(IDirectDrawSurface *iface)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p.\n", iface);
 
    return ddraw_surface7_IsLost(&surface->IDirectDrawSurface7_iface);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::Restore
 *
 * Restores a lost surface. This makes the surface usable again, but
 * doesn't reload its old contents
 *
 * Returns:
 *  DD_OK on success, error code otherwise.
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_Restore(IDirectDrawSurface7 *iface)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
 
    TRACE("iface %p.\n", iface);
 
    if (surface->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
    {
        struct wined3d_swapchain *swapchain = surface->ddraw->wined3d_swapchain;
        struct wined3d_sub_resource_desc wined3d_desc;
        struct wined3d_display_mode mode;
        HRESULT hr;
 
        if (FAILED(hr = wined3d_swapchain_get_display_mode(swapchain, &mode, NULL)))
        {
            WARN("Failed to get display mode, hr %#x.\n", hr);
            return hr;
        }
 
        if (FAILED(hr = wined3d_texture_get_sub_resource_desc(surface->wined3d_texture, 0, &wined3d_desc)))
        {
            WARN("Failed to get resource desc, hr %#x.\n", hr);
            return hr;
        }
 
        if (mode.width != wined3d_desc.width || mode.height != wined3d_desc.height)
        {
            WARN("Display mode dimensions %ux%u don't match surface dimensions %ux%u.\n",
                    mode.width, mode.height, wined3d_desc.width, wined3d_desc.height);
            return DDERR_WRONGMODE;
        }
 
        if (mode.format_id != wined3d_desc.format)
        {
            WARN("Display mode format %#x doesn't match surface format %#x.\n",
                    mode.format_id, wined3d_desc.format);
            return DDERR_WRONGMODE;
        }
    }
 
    ddraw_update_lost_surfaces(surface->ddraw);
    surface->is_lost = FALSE;
 
    return DD_OK;
}
 
static HRESULT WINAPI ddraw_surface4_Restore(IDirectDrawSurface4 *iface)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p.\n", iface);
 
    return ddraw_surface7_Restore(&surface->IDirectDrawSurface7_iface);
}
 
static HRESULT WINAPI ddraw_surface3_Restore(IDirectDrawSurface3 *iface)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p.\n", iface);
 
    return ddraw_surface7_Restore(&surface->IDirectDrawSurface7_iface);
}
 
static HRESULT WINAPI ddraw_surface2_Restore(IDirectDrawSurface2 *iface)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p.\n", iface);
 
    return ddraw_surface7_Restore(&surface->IDirectDrawSurface7_iface);
}
 
static HRESULT WINAPI ddraw_surface1_Restore(IDirectDrawSurface *iface)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p.\n", iface);
 
    return ddraw_surface7_Restore(&surface->IDirectDrawSurface7_iface);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::SetOverlayPosition
 *
 * Changes the display coordinates of an overlay surface
 *
 * Params:
 *  X:
 *  Y:
 *
 * Returns:
 *   DDERR_NOTAOVERLAYSURFACE, because we don't support overlays right now
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_SetOverlayPosition(IDirectDrawSurface7 *iface, LONG x, LONG y)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface7(iface);
    HRESULT hr;
 
    TRACE("iface %p, x %d, y %d.\n", iface, x, y);
 
    wined3d_mutex_lock();
    hr = wined3d_texture_set_overlay_position(surface->wined3d_texture,
            surface->sub_resource_idx, x, y);
    wined3d_mutex_unlock();
 
    return hr;
}
 
static HRESULT WINAPI ddraw_surface4_SetOverlayPosition(IDirectDrawSurface4 *iface, LONG x, LONG y)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, x %d, y %d.\n", iface, x, y);
 
    return ddraw_surface7_SetOverlayPosition(&surface->IDirectDrawSurface7_iface, x, y);
}
 
static HRESULT WINAPI ddraw_surface3_SetOverlayPosition(IDirectDrawSurface3 *iface, LONG x, LONG y)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, x %d, y %d.\n", iface, x, y);
 
    return ddraw_surface7_SetOverlayPosition(&surface->IDirectDrawSurface7_iface, x, y);
}
 
static HRESULT WINAPI ddraw_surface2_SetOverlayPosition(IDirectDrawSurface2 *iface, LONG x, LONG y)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface2(iface);
 
    TRACE("iface %p, x %d, y %d.\n", iface, x, y);
 
    return ddraw_surface7_SetOverlayPosition(&surface->IDirectDrawSurface7_iface, x, y);
}
 
static HRESULT WINAPI ddraw_surface1_SetOverlayPosition(IDirectDrawSurface *iface, LONG x, LONG y)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface(iface);
 
    TRACE("iface %p, x %d, y %d.\n", iface, x, y);
 
    return ddraw_surface7_SetOverlayPosition(&surface->IDirectDrawSurface7_iface, x, y);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::UpdateOverlay
 *
 * Modifies the attributes of an overlay surface.
 *
 * Params:
 *  SrcRect: The section of the source being used for the overlay
 *  DstSurface: Address of the surface that is overlaid
 *  DstRect: Place of the overlay
 *  Flags: some DDOVER_* flags
 *
 * Returns:
 *  DDERR_UNSUPPORTED, because we don't support overlays
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_UpdateOverlay(IDirectDrawSurface7 *iface, RECT *src_rect,
        IDirectDrawSurface7 *dst_surface, RECT *dst_rect, DWORD flags, DDOVERLAYFX *fx)
{
    struct ddraw_surface *src_impl = impl_from_IDirectDrawSurface7(iface);
    struct ddraw_surface *dst_impl = unsafe_impl_from_IDirectDrawSurface7(dst_surface);
    struct wined3d_texture *dst_wined3d_texture = NULL;
    unsigned int dst_sub_resource_idx = 0;
    HRESULT hr;
 
    TRACE("iface %p, src_rect %s, dst_surface %p, dst_rect %s, flags %#x, fx %p.\n",
            iface, wine_dbgstr_rect(src_rect), dst_surface, wine_dbgstr_rect(dst_rect), flags, fx);
 
    if (fx)
        FIXME("Ignoring fx %p.\n", fx);
 
    wined3d_mutex_lock();
    if (dst_impl)
    {
        dst_wined3d_texture = dst_impl->wined3d_texture;
        dst_sub_resource_idx = dst_impl->sub_resource_idx;
    }
    hr = wined3d_texture_update_overlay(src_impl->wined3d_texture, src_impl->sub_resource_idx,
            src_rect, dst_wined3d_texture, dst_sub_resource_idx, dst_rect, flags);
    wined3d_mutex_unlock();
 
    switch (hr)
    {
        case WINED3DERR_INVALIDCALL:        return DDERR_INVALIDPARAMS;
        case WINEDDERR_NOTAOVERLAYSURFACE:  return DDERR_NOTAOVERLAYSURFACE;
        case WINEDDERR_OVERLAYNOTVISIBLE:   return DDERR_OVERLAYNOTVISIBLE;
        default:
            return hr;
    }
}
 
static HRESULT WINAPI ddraw_surface4_UpdateOverlay(IDirectDrawSurface4 *iface, RECT *src_rect,
        IDirectDrawSurface4 *dst_surface, RECT *dst_rect, DWORD flags, DDOVERLAYFX *fx)
{
    struct ddraw_surface *src_impl = impl_from_IDirectDrawSurface4(iface);
    struct ddraw_surface *dst_impl = unsafe_impl_from_IDirectDrawSurface4(dst_surface);
 
    TRACE("iface %p, src_rect %s, dst_surface %p, dst_rect %s, flags %#x, fx %p.\n",
            iface, wine_dbgstr_rect(src_rect), dst_surface, wine_dbgstr_rect(dst_rect), flags, fx);
 
    return ddraw_surface7_UpdateOverlay(&src_impl->IDirectDrawSurface7_iface, src_rect,
            dst_impl ? &dst_impl->IDirectDrawSurface7_iface : NULL, dst_rect, flags, fx);
}
 
static HRESULT WINAPI ddraw_surface3_UpdateOverlay(IDirectDrawSurface3 *iface, RECT *src_rect,
        IDirectDrawSurface3 *dst_surface, RECT *dst_rect, DWORD flags, DDOVERLAYFX *fx)
{
    struct ddraw_surface *src_impl = impl_from_IDirectDrawSurface3(iface);
    struct ddraw_surface *dst_impl = unsafe_impl_from_IDirectDrawSurface3(dst_surface);
 
    TRACE("iface %p, src_rect %s, dst_surface %p, dst_rect %s, flags %#x, fx %p.\n",
            iface, wine_dbgstr_rect(src_rect), dst_surface, wine_dbgstr_rect(dst_rect), flags, fx);
 
    return ddraw_surface7_UpdateOverlay(&src_impl->IDirectDrawSurface7_iface, src_rect,
            dst_impl ? &dst_impl->IDirectDrawSurface7_iface : NULL, dst_rect, flags, fx);
}
 
static HRESULT WINAPI ddraw_surface2_UpdateOverlay(IDirectDrawSurface2 *iface, RECT *src_rect,
        IDirectDrawSurface2 *dst_surface, RECT *dst_rect, DWORD flags, DDOVERLAYFX *fx)
{
    struct ddraw_surface *src_impl = impl_from_IDirectDrawSurface2(iface);
    struct ddraw_surface *dst_impl = unsafe_impl_from_IDirectDrawSurface2(dst_surface);
 
    TRACE("iface %p, src_rect %s, dst_surface %p, dst_rect %s, flags %#x, fx %p.\n",
            iface, wine_dbgstr_rect(src_rect), dst_surface, wine_dbgstr_rect(dst_rect), flags, fx);
 
    return ddraw_surface7_UpdateOverlay(&src_impl->IDirectDrawSurface7_iface, src_rect,
            dst_impl ? &dst_impl->IDirectDrawSurface7_iface : NULL, dst_rect, flags, fx);
}
 
static HRESULT WINAPI ddraw_surface1_UpdateOverlay(IDirectDrawSurface *iface, RECT *src_rect,
        IDirectDrawSurface *dst_surface, RECT *dst_rect, DWORD flags, DDOVERLAYFX *fx)
{
    struct ddraw_surface *src_impl = impl_from_IDirectDrawSurface(iface);
    struct ddraw_surface *dst_impl = unsafe_impl_from_IDirectDrawSurface(dst_surface);
 
    TRACE("iface %p, src_rect %s, dst_surface %p, dst_rect %s, flags %#x, fx %p.\n",
            iface, wine_dbgstr_rect(src_rect), dst_surface, wine_dbgstr_rect(dst_rect), flags, fx);
 
    return ddraw_surface7_UpdateOverlay(&src_impl->IDirectDrawSurface7_iface, src_rect,
            dst_impl ? &dst_impl->IDirectDrawSurface7_iface : NULL, dst_rect, flags, fx);
}
 
/*****************************************************************************
 * IDirectDrawSurface7::UpdateOverlayDisplay
 *
 * The DX7 sdk says that it's not implemented
 *
 * Params:
 *  Flags: ?
 *
 * Returns: DDERR_UNSUPPORTED, because we don't support overlays
 *
 *****************************************************************************/
static HRESULT WINAPI ddraw_surface7_UpdateOverlayDisplay(IDirectDrawSurface7 *iface, DWORD Flags)
{
    TRACE("iface %p, flags %#x.\n", iface, Flags);
 
    return DDERR_UNSUPPORTED;
}
 
static HRESULT WINAPI ddraw_surface4_UpdateOverlayDisplay(IDirectDrawSurface4 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface4(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);
 
    return ddraw_surface7_UpdateOverlayDisplay(&surface->IDirectDrawSurface7_iface, flags);
}
 
static HRESULT WINAPI ddraw_surface3_UpdateOverlayDisplay(IDirectDrawSurface3 *iface, DWORD flags)
{
    struct ddraw_surface *surface = impl_from_IDirectDrawSurface3(iface);
 
    TRACE("iface %p, flags %#x.\n", iface, flags);