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win32u: Write display settings to the registry in apply_display_settings.

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As a fallback if ChangeDisplaySettings returns E_NOTIMPL.
This commit is contained in:
Rémi Bernon 2022-09-14 11:52:50 +02:00 • committed by Alexandre Julliard
parent 3468e96d3b
commit 6ecffdad77
2 changed files with 50 additions and 5 deletions
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2
dlls/win32u/driver.c
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@ -756,7 +756,7 @@ static void nulldrv_UpdateClipboard(void)
static LONG nulldrv_ChangeDisplaySettings( LPDEVMODEW displays, LPCWSTR primary_name, HWND hwnd,
DWORD flags, LPVOID lparam )
{
return DISP_CHANGE_FAILED;
return E_NOTIMPL; /* use default implementation */
}
static BOOL nulldrv_GetCurrentDisplaySettings( LPCWSTR name, BOOL is_primary, LPDEVMODEW mode )

53
dlls/win32u/sysparams.c
View file

@ -509,6 +509,26 @@ static BOOL adapter_get_current_settings( const struct adapter *adapter, DEVMODE
return user_driver->pGetCurrentDisplaySettings( adapter->dev.device_name, is_primary, mode );
}
static BOOL adapter_set_current_settings( const struct adapter *adapter, const DEVMODEW *mode )
{
HANDLE mutex;
HKEY hkey;
BOOL ret;
mutex = get_display_device_init_mutex();
if (!config_key && !(config_key = reg_open_key( NULL, config_keyW, sizeof(config_keyW) ))) ret = FALSE;
if (!(hkey = reg_open_key( config_key, adapter->config_key, lstrlenW( adapter->config_key ) * sizeof(WCHAR) ))) ret = FALSE;
else
{
ret = write_adapter_mode( hkey, ENUM_CURRENT_SETTINGS, mode );
NtClose( hkey );
}
release_display_device_init_mutex( mutex );
return ret;
}
static int mode_compare(const void *p1, const void *p2)
{
BOOL a_interlaced, b_interlaced, a_stretched, b_stretched;
@ -1537,6 +1557,9 @@ static BOOL update_display_cache( BOOL force )
if (!user_driver->pUpdateDisplayDevices( &device_manager, force, &ctx ) && force)
{
/* default implementation: expose an adapter and a monitor with a few standard modes,
* and read / write current display settings from / to the registry.
*/
static const DEVMODEW modes[] =
{
{ .dmFields = DM_DISPLAYORIENTATION | DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT | DM_DISPLAYFLAGS | DM_DISPLAYFREQUENCY,
@ -1560,13 +1583,24 @@ static BOOL update_display_cache( BOOL force )
struct gdi_monitor monitor =
{
.state_flags = DISPLAY_DEVICE_ACTIVE | DISPLAY_DEVICE_ATTACHED,
.rc_monitor = {.right = modes[2].dmPelsWidth, .bottom = modes[2].dmPelsHeight},
.rc_work = {.right = modes[2].dmPelsWidth, .bottom = modes[2].dmPelsHeight},
};
DEVMODEW mode = {{0}};
UINT i;
add_gpu( &gpu, &ctx );
add_adapter( &adapter, &ctx );
if (!read_adapter_mode( ctx.adapter_key, ENUM_CURRENT_SETTINGS, &mode ))
{
mode = modes[2];
mode.dmFields |= DM_POSITION;
write_adapter_mode( ctx.adapter_key, ENUM_CURRENT_SETTINGS, &mode );
}
monitor.rc_monitor.right = mode.dmPelsWidth;
monitor.rc_monitor.bottom = mode.dmPelsHeight;
monitor.rc_work.right = mode.dmPelsWidth;
monitor.rc_work.bottom = mode.dmPelsHeight;
add_monitor( &monitor, &ctx );
for (i = 0; i < ARRAY_SIZE(modes); ++i) add_mode( modes + i, &ctx );
}
@ -2430,8 +2464,8 @@ static LONG apply_display_settings( const WCHAR *devname, const DEVMODEW *devmod
{
WCHAR primary_name[CCHDEVICENAME];
struct display_device *primary;
DEVMODEW *mode, *displays;
struct adapter *adapter;
DEVMODEW *displays;
LONG ret;
if (!lock_display_devices()) return DISP_CHANGE_FAILED;
@ -2454,7 +2488,18 @@ static LONG apply_display_settings( const WCHAR *devname, const DEVMODEW *devmod
if (!(primary = find_adapter_device_by_id( 0 ))) primary_name[0] = 0;
else wcscpy( primary_name, primary->device_name );
ret = user_driver->pChangeDisplaySettings( displays, primary_name, hwnd, flags, lparam );
if ((ret = user_driver->pChangeDisplaySettings( displays, primary_name, hwnd, flags, lparam )) == E_NOTIMPL)
{
/* default implementation: write current display settings to the registry. */
mode = displays;
LIST_FOR_EACH_ENTRY( adapter, &adapters, struct adapter, entry )
{
if (!adapter_set_current_settings( adapter, mode ))
WARN( "Failed to write adapter %s current mode.\n", debugstr_w(adapter->dev.device_name) );
mode = NEXT_DEVMODEW(mode);
}
ret = DISP_CHANGE_SUCCESSFUL;
}
unlock_display_devices();
free( displays );