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/* DirectDraw Base Functions
*
* Copyright 1997-1999 Marcus Meissner
* Copyright 1998 Lionel Ulmer
* Copyright 2000-2001 TransGaming Technologies Inc.
* Copyright 2006 Stefan Dösinger
* Copyright 2008 Denver Gingerich
*
* 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
*/
#define DDRAW_INIT_GUID
#include "ddraw_private.h"
#include "rpcproxy.h"
#include "wine/exception.h"
#include "winreg.h"
WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
static struct list global_ddraw_list = LIST_INIT(global_ddraw_list);
static HINSTANCE instance;
/* value of ForceRefreshRate */
DWORD force_refresh_rate = 0;
/* Structure for converting DirectDrawEnumerateA to DirectDrawEnumerateExA */
struct callback_info
{
LPDDENUMCALLBACKA callback;
void *context;
};
/* Enumeration callback for converting DirectDrawEnumerateA to DirectDrawEnumerateExA */
static BOOL CALLBACK enum_callback(GUID *guid, char *description, char *driver_name,
void *context, HMONITOR monitor)
{
const struct callback_info *info = context;
return info->callback(guid, description, driver_name, info->context);
}
static void ddraw_enumerate_secondary_devices(struct wined3d *wined3d, LPDDENUMCALLBACKEXA callback,
void *context)
{
struct wined3d_adapter_identifier adapter_id;
struct wined3d_adapter *wined3d_adapter;
struct wined3d_output_desc output_desc;
struct wined3d_output *wined3d_output;
unsigned int interface_count = 0;
unsigned int adapter_idx = 0;
unsigned int output_idx;
BOOL cont_enum = TRUE;
HRESULT hr;
while (cont_enum && (wined3d_adapter = wined3d_get_adapter(wined3d, adapter_idx)))
{
char DriverName[512] = "", DriverDescription[512] = "";
/* The Battle.net System Checker expects the GetAdapterIdentifier DeviceName to match the
* Driver Name, so obtain the DeviceName and GUID from D3D. */
memset(&adapter_id, 0x0, sizeof(adapter_id));
adapter_id.device_name = DriverName;
adapter_id.device_name_size = sizeof(DriverName);
adapter_id.description = DriverDescription;
adapter_id.description_size = sizeof(DriverDescription);
wined3d_mutex_lock();
if (FAILED(hr = wined3d_adapter_get_identifier(wined3d_adapter, 0x0, &adapter_id)))
{
WARN("Failed to get adapter identifier, hr %#x.\n", hr);
wined3d_mutex_unlock();
break;
}
wined3d_mutex_unlock();
for (output_idx = 0; cont_enum && (wined3d_output = wined3d_adapter_get_output(
wined3d_adapter, output_idx)); ++output_idx)
{
wined3d_mutex_lock();
if (FAILED(hr = wined3d_output_get_desc(wined3d_output, &output_desc)))
{
WARN("Failed to get output description, hr %#x.\n", hr);
wined3d_mutex_unlock();
break;
}
wined3d_mutex_unlock();
TRACE("Interface %u: %s\n", interface_count++,
wine_dbgstr_guid(&adapter_id.device_identifier));
cont_enum = callback(&adapter_id.device_identifier, adapter_id.description,
adapter_id.device_name, context, output_desc.monitor);
}
if (FAILED(hr))
break;
++adapter_idx;
}
}
/* Handle table functions */
BOOL ddraw_handle_table_init(struct ddraw_handle_table *t, UINT initial_size)
{
if (!(t->entries = heap_alloc_zero(initial_size * sizeof(*t->entries))))
{
ERR("Failed to allocate handle table memory.\n");
return FALSE;
}
t->free_entries = NULL;
t->table_size = initial_size;
t->entry_count = 0;
return TRUE;
}
void ddraw_handle_table_destroy(struct ddraw_handle_table *t)
{
heap_free(t->entries);
memset(t, 0, sizeof(*t));
}
DWORD ddraw_allocate_handle(struct ddraw_handle_table *t, void *object, enum ddraw_handle_type type)
{
struct ddraw_handle_entry *entry;
if (t->free_entries)
{
DWORD idx = t->free_entries - t->entries;
/* Use a free handle */
entry = t->free_entries;
if (entry->type != DDRAW_HANDLE_FREE)
{
ERR("Handle %#x (%p) is in the free list, but has type %#x.\n", idx, entry->object, entry->type);
return DDRAW_INVALID_HANDLE;
}
t->free_entries = entry->object;
entry->object = object;
entry->type = type;
return idx;
}
if (!(t->entry_count < t->table_size))
{
/* Grow the table */
UINT new_size = t->table_size + (t->table_size >> 1);
struct ddraw_handle_entry *new_entries;
if (!(new_entries = heap_realloc(t->entries, new_size * sizeof(*t->entries))))
{
ERR("Failed to grow the handle table.\n");
return DDRAW_INVALID_HANDLE;
}
t->entries = new_entries;
t->table_size = new_size;
}
entry = &t->entries[t->entry_count];
entry->object = object;
entry->type = type;
return t->entry_count++;
}
void *ddraw_free_handle(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
{
struct ddraw_handle_entry *entry;
void *object;
if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
{
WARN("Invalid handle %#x passed.\n", handle);
return NULL;
}
entry = &t->entries[handle];
if (entry->type != type)
{
WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
return NULL;
}
object = entry->object;
entry->object = t->free_entries;
entry->type = DDRAW_HANDLE_FREE;
t->free_entries = entry;
return object;
}
void *ddraw_get_object(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
{
struct ddraw_handle_entry *entry;
if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
{
WARN("Invalid handle %#x passed.\n", handle);
return NULL;
}
entry = &t->entries[handle];
if (entry->type != type)
{
WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
return NULL;
}
return entry->object;
}
HRESULT WINAPI GetSurfaceFromDC(HDC dc, IDirectDrawSurface4 **surface, HDC *device_dc)
{
struct ddraw *ddraw;
TRACE("dc %p, surface %p, device_dc %p.\n", dc, surface, device_dc);
if (!surface)
return E_INVALIDARG;
if (!device_dc)
{
*surface = NULL;
return E_INVALIDARG;
}
wined3d_mutex_lock();
LIST_FOR_EACH_ENTRY(ddraw, &global_ddraw_list, struct ddraw, ddraw_list_entry)
{
if (FAILED(IDirectDraw4_GetSurfaceFromDC(&ddraw->IDirectDraw4_iface, dc, surface)))
continue;
*device_dc = NULL; /* FIXME */
wined3d_mutex_unlock();
return DD_OK;
}
wined3d_mutex_unlock();
*surface = NULL;
*device_dc = NULL;
return DDERR_NOTFOUND;
}
/***********************************************************************
*
* Helper function for DirectDrawCreate and friends
* Creates a new DDraw interface with the given REFIID
*
* Interfaces that can be created:
* IDirectDraw, IDirectDraw2, IDirectDraw4, IDirectDraw7
* IDirect3D, IDirect3D2, IDirect3D3, IDirect3D7. (Does Windows return
* IDirect3D interfaces?)
*
* Arguments:
* guid: ID of the requested driver, NULL for the default driver.
* The GUID can be queried with DirectDrawEnumerate(Ex)A/W
* DD: Used to return the pointer to the created object
* UnkOuter: For aggregation, which is unsupported. Must be NULL
* iid: requested version ID.
*
* Returns:
* DD_OK if the Interface was created successfully
* CLASS_E_NOAGGREGATION if UnkOuter is not NULL
* E_OUTOFMEMORY if some allocation failed
*
***********************************************************************/
static HRESULT DDRAW_Create(const GUID *guid, void **out, IUnknown *outer_unknown, REFIID iid)
{
enum wined3d_device_type device_type;
struct ddraw *ddraw;
DWORD flags = 0;
HRESULT hr;
TRACE("driver_guid %s, ddraw %p, outer_unknown %p, interface_iid %s.\n",
debugstr_guid(guid), out, outer_unknown, debugstr_guid(iid));
*out = NULL;
if (guid == (GUID *) DDCREATE_EMULATIONONLY)
{
device_type = WINED3D_DEVICE_TYPE_REF;
}
else if (guid == (GUID *) DDCREATE_HARDWAREONLY)
{
device_type = WINED3D_DEVICE_TYPE_HAL;
}
else
{
device_type = WINED3D_DEVICE_TYPE_HAL;
}
/* DDraw doesn't support aggregation, according to msdn */
if (outer_unknown != NULL)
return CLASS_E_NOAGGREGATION;
if (!IsEqualGUID(iid, &IID_IDirectDraw7))
flags = WINED3D_LEGACY_FFP_LIGHTING;
if (!(ddraw = heap_alloc_zero(sizeof(*ddraw))))
{
ERR("Out of memory when creating DirectDraw.\n");
return E_OUTOFMEMORY;
}
if (FAILED(hr = ddraw_init(ddraw, flags, device_type)))
{
WARN("Failed to initialize ddraw object, hr %#x.\n", hr);
heap_free(ddraw);
return hr;
}
hr = IDirectDraw7_QueryInterface(&ddraw->IDirectDraw7_iface, iid, out);
IDirectDraw7_Release(&ddraw->IDirectDraw7_iface);
if (SUCCEEDED(hr))
list_add_head(&global_ddraw_list, &ddraw->ddraw_list_entry);
else
WARN("Failed to query interface %s from ddraw object %p.\n", debugstr_guid(iid), ddraw);
return hr;
}
/***********************************************************************
* DirectDrawCreate (DDRAW.@)
*
* Creates legacy DirectDraw Interfaces. Can't create IDirectDraw7
* interfaces in theory
*
* Arguments, return values: See DDRAW_Create
*
***********************************************************************/
HRESULT WINAPI DECLSPEC_HOTPATCH DirectDrawCreate(GUID *driver_guid, IDirectDraw **ddraw, IUnknown *outer)
{
HRESULT hr;
TRACE("driver_guid %s, ddraw %p, outer %p.\n",
debugstr_guid(driver_guid), ddraw, outer);
wined3d_mutex_lock();
hr = DDRAW_Create(driver_guid, (void **)ddraw, outer, &IID_IDirectDraw);
wined3d_mutex_unlock();
if (SUCCEEDED(hr))
{
if (FAILED(hr = IDirectDraw_Initialize(*ddraw, driver_guid)))
IDirectDraw_Release(*ddraw);
}
return hr;
}
/***********************************************************************
* DirectDrawCreateEx (DDRAW.@)
*
* Only creates new IDirectDraw7 interfaces, supposed to fail if legacy
* interfaces are requested.
*
* Arguments, return values: See DDRAW_Create
*
***********************************************************************/
HRESULT WINAPI DECLSPEC_HOTPATCH DirectDrawCreateEx(GUID *driver_guid,
void **ddraw, REFIID interface_iid, IUnknown *outer)
{
HRESULT hr;
TRACE("driver_guid %s, ddraw %p, interface_iid %s, outer %p.\n",
debugstr_guid(driver_guid), ddraw, debugstr_guid(interface_iid), outer);
if (!IsEqualGUID(interface_iid, &IID_IDirectDraw7))
return DDERR_INVALIDPARAMS;
wined3d_mutex_lock();
hr = DDRAW_Create(driver_guid, ddraw, outer, interface_iid);
wined3d_mutex_unlock();
if (SUCCEEDED(hr))
{
IDirectDraw7 *ddraw7 = *(IDirectDraw7 **)ddraw;
hr = IDirectDraw7_Initialize(ddraw7, driver_guid);
if (FAILED(hr))
IDirectDraw7_Release(ddraw7);
}
return hr;
}
/***********************************************************************
* DirectDrawEnumerateA (DDRAW.@)
*
* Enumerates legacy ddraw drivers, ascii version. We only have one
* driver, which relays to WineD3D. If we were sufficiently cool,
* we could offer various interfaces, which use a different default surface
* implementation, but I think it's better to offer this choice in
* winecfg, because some apps use the default driver, so we would need
* a winecfg option anyway, and there shouldn't be 2 ways to set one setting
*
* Arguments:
* Callback: Callback function from the app
* Context: Argument to the call back.
*
* Returns:
* DD_OK on success
* E_INVALIDARG if the Callback caused a page fault
*
*
***********************************************************************/
HRESULT WINAPI DirectDrawEnumerateA(LPDDENUMCALLBACKA callback, void *context)
{
struct callback_info info;
TRACE("callback %p, context %p.\n", callback, context);
info.callback = callback;
info.context = context;
return DirectDrawEnumerateExA(enum_callback, &info, 0x0);
}
/***********************************************************************
* DirectDrawEnumerateExA (DDRAW.@)
*
* Enumerates DirectDraw7 drivers, ascii version. See
* the comments above DirectDrawEnumerateA for more details.
*
* The Flag member is not supported right now.
*
***********************************************************************/
HRESULT WINAPI DirectDrawEnumerateExA(LPDDENUMCALLBACKEXA callback, void *context, DWORD flags)
{
struct wined3d *wined3d;
TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
if (flags & ~(DDENUM_ATTACHEDSECONDARYDEVICES |
DDENUM_DETACHEDSECONDARYDEVICES |
DDENUM_NONDISPLAYDEVICES))
return DDERR_INVALIDPARAMS;
if (flags & ~DDENUM_ATTACHEDSECONDARYDEVICES)
FIXME("flags 0x%08x not handled\n", flags & ~DDENUM_ATTACHEDSECONDARYDEVICES);
TRACE("Enumerating ddraw interfaces\n");
if (!(wined3d = wined3d_create(DDRAW_WINED3D_FLAGS)))
{
if (!(wined3d = wined3d_create(DDRAW_WINED3D_FLAGS | WINED3D_NO3D)))
{
WARN("Failed to create a wined3d object.\n");
return E_FAIL;
}
WARN("Created a wined3d object without 3D support.\n");
}
__TRY
{
/* QuickTime expects the description "DirectDraw HAL" */
static CHAR driver_desc[] = "DirectDraw HAL",
driver_name[] = "display";
BOOL cont_enum;
TRACE("Default interface: DirectDraw HAL\n");
cont_enum = callback(NULL, driver_desc, driver_name, context, 0);
/* The Battle.net System Checker expects both a NULL device and a GUID-based device */
if (cont_enum && (flags & DDENUM_ATTACHEDSECONDARYDEVICES))
ddraw_enumerate_secondary_devices(wined3d, callback, context);
}
__EXCEPT_PAGE_FAULT
{
wined3d_decref(wined3d);
return DDERR_INVALIDPARAMS;
}
__ENDTRY;
wined3d_decref(wined3d);
TRACE("End of enumeration\n");
return DD_OK;
}
/***********************************************************************
* DirectDrawEnumerateW (DDRAW.@)
*
* Enumerates legacy drivers, unicode version.
* This function is not implemented on Windows.
*
***********************************************************************/
HRESULT WINAPI DirectDrawEnumerateW(LPDDENUMCALLBACKW callback, void *context)
{
TRACE("callback %p, context %p.\n", callback, context);
if (!callback)
return DDERR_INVALIDPARAMS;
else
return DDERR_UNSUPPORTED;
}
/***********************************************************************
* DirectDrawEnumerateExW (DDRAW.@)
*
* Enumerates DirectDraw7 drivers, unicode version.
* This function is not implemented on Windows.
*
***********************************************************************/
HRESULT WINAPI DirectDrawEnumerateExW(LPDDENUMCALLBACKEXW callback, void *context, DWORD flags)
{
TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
return DDERR_UNSUPPORTED;
}
/***********************************************************************
* Classfactory implementation.
***********************************************************************/
/***********************************************************************
* CF_CreateDirectDraw
*
* DDraw creation function for the class factory
*
* Params:
* UnkOuter: Set to NULL
* iid: ID of the wanted interface
* obj: Address to pass the interface pointer back
*
* Returns
* DD_OK / DDERR*, see DDRAW_Create
*
***********************************************************************/
static HRESULT
CF_CreateDirectDraw(IUnknown* UnkOuter, REFIID iid,
void **obj)
{
HRESULT hr;
TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(iid), obj);
wined3d_mutex_lock();
hr = DDRAW_Create(NULL, obj, UnkOuter, iid);
wined3d_mutex_unlock();
return hr;
}
/***********************************************************************
* CF_CreateDirectDraw
*
* Clipper creation function for the class factory
*
* Params:
* UnkOuter: Set to NULL
* iid: ID of the wanted interface
* obj: Address to pass the interface pointer back
*
* Returns
* DD_OK / DDERR*, see DDRAW_Create
*
***********************************************************************/
static HRESULT
CF_CreateDirectDrawClipper(IUnknown* UnkOuter, REFIID riid,
void **obj)
{
HRESULT hr;
IDirectDrawClipper *Clip;
TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(riid), obj);
wined3d_mutex_lock();
hr = DirectDrawCreateClipper(0, &Clip, UnkOuter);
if (hr != DD_OK)
{
wined3d_mutex_unlock();
return hr;
}
hr = IDirectDrawClipper_QueryInterface(Clip, riid, obj);
IDirectDrawClipper_Release(Clip);
wined3d_mutex_unlock();
return hr;
}
static const struct object_creation_info object_creation[] =
{
{ &CLSID_DirectDraw, CF_CreateDirectDraw },
{ &CLSID_DirectDraw7, CF_CreateDirectDraw },
{ &CLSID_DirectDrawClipper, CF_CreateDirectDrawClipper }
};
struct ddraw_class_factory
{
IClassFactory IClassFactory_iface;
LONG ref;
HRESULT (*pfnCreateInstance)(IUnknown *outer, REFIID iid, void **out);
};
static inline struct ddraw_class_factory *impl_from_IClassFactory(IClassFactory *iface)
{
return CONTAINING_RECORD(iface, struct ddraw_class_factory, IClassFactory_iface);
}
/*******************************************************************************
* IDirectDrawClassFactory::QueryInterface
*
* QueryInterface for the class factory
*
* PARAMS
* riid Reference to identifier of queried interface
* ppv Address to return the interface pointer at
*
* RETURNS
* Success: S_OK
* Failure: E_NOINTERFACE
*
*******************************************************************************/
static HRESULT WINAPI ddraw_class_factory_QueryInterface(IClassFactory *iface, REFIID riid, void **out)
{
TRACE("iface %p, riid %s, out %p.\n", iface, debugstr_guid(riid), out);
if (IsEqualGUID(riid, &IID_IUnknown)
|| IsEqualGUID(riid, &IID_IClassFactory))
{
IClassFactory_AddRef(iface);
*out = iface;
return S_OK;
}
WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
/*******************************************************************************
* IDirectDrawClassFactory::AddRef
*
* AddRef for the class factory
*
* RETURNS
* The new refcount
*
*******************************************************************************/
static ULONG WINAPI ddraw_class_factory_AddRef(IClassFactory *iface)
{
struct ddraw_class_factory *factory = impl_from_IClassFactory(iface);
ULONG ref = InterlockedIncrement(&factory->ref);
TRACE("%p increasing refcount to %u.\n", factory, ref);
return ref;
}
/*******************************************************************************
* IDirectDrawClassFactory::Release
*
* Release for the class factory. If the refcount falls to 0, the object
* is destroyed
*
* RETURNS
* The new refcount
*
*******************************************************************************/
static ULONG WINAPI ddraw_class_factory_Release(IClassFactory *iface)
{
struct ddraw_class_factory *factory = impl_from_IClassFactory(iface);
ULONG ref = InterlockedDecrement(&factory->ref);
TRACE("%p decreasing refcount to %u.\n", factory, ref);
if (!ref)
heap_free(factory);
return ref;
}
/*******************************************************************************
* IDirectDrawClassFactory::CreateInstance
*
* What is this? Seems to create DirectDraw objects...
*
* Params
* The usual things???
*
* RETURNS
* ???
*
*******************************************************************************/
static HRESULT WINAPI ddraw_class_factory_CreateInstance(IClassFactory *iface,
IUnknown *outer_unknown, REFIID riid, void **out)
{
struct ddraw_class_factory *factory = impl_from_IClassFactory(iface);
TRACE("iface %p, outer_unknown %p, riid %s, out %p.\n",
iface, outer_unknown, debugstr_guid(riid), out);
return factory->pfnCreateInstance(outer_unknown, riid, out);
}
/*******************************************************************************
* IDirectDrawClassFactory::LockServer
*
* What is this?
*
* Params
* ???
*
* RETURNS
* S_OK, because it's a stub
*
*******************************************************************************/
static HRESULT WINAPI ddraw_class_factory_LockServer(IClassFactory *iface, BOOL dolock)
{
FIXME("iface %p, dolock %#x stub!\n", iface, dolock);
return S_OK;
}
/*******************************************************************************
* The class factory VTable
*******************************************************************************/
static const IClassFactoryVtbl IClassFactory_Vtbl =
{
ddraw_class_factory_QueryInterface,
ddraw_class_factory_AddRef,
ddraw_class_factory_Release,
ddraw_class_factory_CreateInstance,
ddraw_class_factory_LockServer
};
HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void **out)
{
struct ddraw_class_factory *factory;
unsigned int i;
TRACE("rclsid %s, riid %s, out %p.\n",
debugstr_guid(rclsid), debugstr_guid(riid), out);
if (!IsEqualGUID(&IID_IClassFactory, riid)
&& !IsEqualGUID(&IID_IUnknown, riid))
return E_NOINTERFACE;
for (i=0; i < ARRAY_SIZE(object_creation); i++)
{
if (IsEqualGUID(object_creation[i].clsid, rclsid))
break;
}
if (i == ARRAY_SIZE(object_creation))
{
FIXME("%s: no class found.\n", debugstr_guid(rclsid));
return CLASS_E_CLASSNOTAVAILABLE;
}
if (!(factory = heap_alloc_zero(sizeof(*factory))))
return E_OUTOFMEMORY;
factory->IClassFactory_iface.lpVtbl = &IClassFactory_Vtbl;
factory->ref = 1;
factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
*out = factory;
return S_OK;
}
/*******************************************************************************
* DllCanUnloadNow [DDRAW.@] Determines whether the DLL is in use.
*
* RETURNS
* Success: S_OK
* Failure: S_FALSE
*/
HRESULT WINAPI DllCanUnloadNow(void)
{
TRACE("\n");
return S_FALSE;
}
HRESULT WINAPI DllRegisterServer(void)
{
return __wine_register_resources( instance );
}
HRESULT WINAPI DllUnregisterServer(void)
{
return __wine_unregister_resources( instance );
}
/***********************************************************************
* DllMain (DDRAW.0)
*
* Could be used to register DirectDraw drivers, if we have more than
* one. Also used to destroy any objects left at unload if the
* app didn't release them properly(Gothic 2, Diablo 2, Moto racer, ...)
*
***********************************************************************/
BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, void *reserved)
{
switch (reason)
{
case DLL_PROCESS_ATTACH:
{
static HMODULE ddraw_self;
HKEY hkey = 0;
WNDCLASSA wc;
/* Register the window class. This is used to create a hidden window
* for D3D rendering, if the application didn't pass one. It can also
* be used for creating a device window from SetCooperativeLevel(). */
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = DefWindowProcA;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = inst;
wc.hIcon = 0;
wc.hCursor = 0;
wc.hbrBackground = GetStockObject(BLACK_BRUSH);
wc.lpszMenuName = NULL;
wc.lpszClassName = DDRAW_WINDOW_CLASS_NAME;
if (!RegisterClassA(&wc))
{
ERR("Failed to register ddraw window class, last error %#x.\n", GetLastError());
return FALSE;
}
/* On Windows one can force the refresh rate that DirectDraw uses by
* setting an override value in dxdiag. This is documented in KB315614
* (main article), KB230002, and KB217348. By comparing registry dumps
* before and after setting the override, we see that the override value
* is stored in HKLM\Software\Microsoft\DirectDraw\ForceRefreshRate as a
* DWORD that represents the refresh rate to force. We use this
* registry entry to modify the behavior of SetDisplayMode so that Wine
* users can override the refresh rate in a Windows-compatible way.
*
* dxdiag will not accept a refresh rate lower than 40 or higher than
* 120 so this value should be within that range. It is, of course,
* possible for a user to set the registry entry value directly so that
* assumption might not hold.
*
* There is no current mechanism for setting this value through the Wine
* GUI. It would be most appropriate to set this value through a dxdiag
* clone, but it may be sufficient to use winecfg.
*
* TODO: Create a mechanism for setting this value through the Wine GUI.
*/
if ( !RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Microsoft\\DirectDraw", &hkey ) )
{
DWORD type, data, size;
size = sizeof(data);
if (!RegQueryValueExA(hkey, "ForceRefreshRate", NULL, &type, (BYTE *)&data, &size) && type == REG_DWORD)
{
TRACE("ForceRefreshRate set; overriding refresh rate to %d Hz\n", data);
force_refresh_rate = data;
}
RegCloseKey( hkey );
}
/* Prevent the ddraw module from being unloaded. When switching to
* exclusive mode, we replace the window proc of the ddraw window. If
* an application would unload ddraw from the WM_DESTROY handler for
* that window, it would return to unmapped memory and die. Apparently
* this is supposed to work on Windows. */
if (!GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_PIN,
(const WCHAR *)&ddraw_self, &ddraw_self))
ERR("Failed to get own module handle.\n");
instance = inst;
DisableThreadLibraryCalls(inst);
break;
}
case DLL_PROCESS_DETACH:
if (WARN_ON(ddraw))
{
struct ddraw *ddraw;
LIST_FOR_EACH_ENTRY(ddraw, &global_ddraw_list, struct ddraw, ddraw_list_entry)
{
struct ddraw_surface *surface;
WARN("DirectDraw object %p has reference counts {%u, %u, %u, %u, %u}.\n",
ddraw, ddraw->ref7, ddraw->ref4, ddraw->ref3, ddraw->ref2, ddraw->ref1);
if (ddraw->d3ddevice)
WARN("DirectDraw object %p has Direct3D device %p attached.\n", ddraw, ddraw->d3ddevice);
LIST_FOR_EACH_ENTRY(surface, &ddraw->surface_list, struct ddraw_surface, surface_list_entry)
{
WARN("Surface %p has reference counts {%u, %u, %u, %u, %u, %u}.\n",
surface, surface->ref7, surface->ref4, surface->ref3,
surface->ref2, surface->ref1, surface->gamma_count);
}
}
}
if (reserved) break;
UnregisterClassA(DDRAW_WINDOW_CLASS_NAME, inst);
}
return TRUE;
}
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