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ddraw: Use offscreen backbuffers. 

In principle this allows us to use more than one backbuffer in ddraw. It's
also a requirement for the next patch.
This commit is contained in:
Henri Verbeet 2011-09-15 20:01:50 +02:00 committed by Alexandre Julliard
parent 5186882098
commit 1aeee59bd8
1 changed files with 7 additions and 39 deletions
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46
dlls/ddraw/ddraw.c
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@ -2794,8 +2794,6 @@ static HRESULT ddraw_create_swapchain(IDirectDrawImpl *ddraw, IDirectDrawSurface
presentation_parameters.BackBufferWidth = target->surface_desc.dwWidth;
presentation_parameters.BackBufferHeight = target->surface_desc.dwHeight;
presentation_parameters.BackBufferFormat = PixelFormat_DD2WineD3D(&target->surface_desc.u4.ddpfPixelFormat);
presentation_parameters.BackBufferCount = (target->surface_desc.dwFlags & DDSD_BACKBUFFERCOUNT)
? target->surface_desc.dwBackBufferCount : 0;
presentation_parameters.SwapEffect = WINED3DSWAPEFFECT_COPY;
presentation_parameters.hDeviceWindow = ddraw->dest_window;
presentation_parameters.Windowed = !(ddraw->cooperative_level & DDSCL_FULLSCREEN);
@ -5644,27 +5642,6 @@ static HRESULT CDECL device_parent_create_surface(struct wined3d_device_parent *
return D3D_OK;
}
static HRESULT WINAPI findRenderTarget(IDirectDrawSurface7 *surface, DDSURFACEDESC2 *surface_desc, void *ctx)
{
IDirectDrawSurfaceImpl *s = impl_from_IDirectDrawSurface7(surface);
IDirectDrawSurfaceImpl **target = ctx;
if (!s->isRenderTarget)
{
*target = s;
IDirectDrawSurface7_Release(surface);
return DDENUMRET_CANCEL;
}
/* Recurse into the surface tree */
IDirectDrawSurface7_EnumAttachedSurfaces(surface, ctx, findRenderTarget);
IDirectDrawSurface7_Release(surface);
if (*target) return DDENUMRET_CANCEL;
return DDENUMRET_OK;
}
static HRESULT CDECL device_parent_create_rendertarget(struct wined3d_device_parent *device_parent,
void *container_parent, UINT width, UINT height, enum wined3d_format_id format,
WINED3DMULTISAMPLE_TYPE multisample_type, DWORD multisample_quality, BOOL lockable,
@ -5672,33 +5649,24 @@ static HRESULT CDECL device_parent_create_rendertarget(struct wined3d_device_par
{
struct IDirectDrawImpl *ddraw = ddraw_from_device_parent(device_parent);
IDirectDrawSurfaceImpl *d3d_surface = ddraw->d3d_target;
IDirectDrawSurfaceImpl *target = NULL;
TRACE("device_parent %p, container_parent %p, width %u, height %u, format %#x, multisample_type %#x,\n"
"\tmultisample_quality %u, lockable %u, surface %p.\n",
device_parent, container_parent, width, height, format, multisample_type,
multisample_quality, lockable, surface);
/* TODO: Return failure if the dimensions do not match, but this shouldn't
* happen. */
if (d3d_surface->isRenderTarget)
{
IDirectDrawSurface7_EnumAttachedSurfaces(&d3d_surface->IDirectDrawSurface7_iface, &target, findRenderTarget);
}
else
{
target = d3d_surface;
ERR("Frontbuffer already created.\n");
return E_FAIL;
}
d3d_surface->isRenderTarget = TRUE;
if (!target)
{
target = ddraw->d3d_target;
ERR(" (%p) : No DirectDrawSurface found to create the back buffer. Using the front buffer as back buffer. Uncertain consequences\n", ddraw);
}
/* TODO: Return failure if the dimensions do not match, but this shouldn't happen */
*surface = target->wined3d_surface;
*surface = d3d_surface->wined3d_surface;
wined3d_surface_incref(*surface);
target->isRenderTarget = TRUE;
TRACE("Returning wineD3DSurface %p, it belongs to surface %p\n", *surface, d3d_surface);