[PATCH 4/9] win32u: Implement display adapter registration.
Zhiyi Zhang
zzhang at codeweavers.com
Thu Nov 25 02:17:06 CST 2021
On 11/25/21 09:34, Jacek Caban wrote:
> Signed-off-by: Jacek Caban <jacek at codeweavers.com>
> ---
> dlls/win32u/font.c | 4 ++-
> dlls/win32u/sysparams.c | 71 ++++++++++++++++++++++++++++++++++++++++-
> 2 files changed, 73 insertions(+), 2 deletions(-)
>
>
>
> 0004-win32u-Implement-display-adapter-registration.txt
>
> diff --git a/dlls/win32u/font.c b/dlls/win32u/font.c
> index 1f284d775f4..40467bb82f5 100644
> --- a/dlls/win32u/font.c
> +++ b/dlls/win32u/font.c
> @@ -584,9 +584,11 @@ HKEY reg_create_key( HKEY root, const WCHAR *name, ULONG name_len,
> if (i == len) return 0;
> for (;;)
> {
> + unsigned int subkey_options = options;
> + if (i < len) subkey_options &= ~(REG_OPTION_CREATE_LINK | REG_OPTION_OPEN_LINK);
> nameW.Buffer = (WCHAR *)name + pos;
> nameW.Length = (i - pos) * sizeof(WCHAR);
> - status = NtCreateKey( &ret, MAXIMUM_ALLOWED, &attr, 0, NULL, options, disposition );
> + status = NtCreateKey( &ret, MAXIMUM_ALLOWED, &attr, 0, NULL, subkey_options, disposition );
> if (attr.RootDirectory != root) NtClose( attr.RootDirectory );
> if (!NT_SUCCESS(status)) return 0;
> diff --git a/dlls/win32u/sysparams.c b/dlls/win32u/sysparams.c
> index d5368e96d47..e2e123e1fb1 100644
> --- a/dlls/win32u/sysparams.c
> +++ b/dlls/win32u/sysparams.c
> @@ -125,6 +125,8 @@ static const WCHAR controlW[] = {'C','o','n','t','r','o','l'};
> static const WCHAR device_parametersW[] =
> {'D','e','v','i','c','e',' ','P','a','r','a','m','e','t','e','r','s'};
> static const WCHAR linkedW[] = {'L','i','n','k','e','d',0};
> +static const WCHAR symbolic_link_valueW[] =
> + {'S','y','m','b','o','l','i','c','L','i','n','k','V','a','l','u','e',0};
> static const WCHAR state_flagsW[] = {'S','t','a','t','e','F','l','a','g','s',0};
> static const WCHAR gpu_idW[] = {'G','P','U','I','D',0};
> static const WCHAR hardware_idW[] = {'H','a','r','d','w','a','r','e','I','D',0};
> @@ -791,7 +793,74 @@ static void add_gpu( const struct gdi_gpu *gpu, void *param )
> static void add_adapter( const struct gdi_adapter *adapter, void *param )
> {
> - FIXME( "\n" );
> + struct device_manager_ctx *ctx = param;
> + unsigned int adapter_index, video_index, len;
> + char name[64], buffer[MAX_PATH];
> + WCHAR nameW[64], bufferW[MAX_PATH];
> + HKEY hkey;
> +
> + TRACE( "\n" );
> +
> + if (!ctx->gpu_count)
> + {
> + static const struct gdi_gpu default_gpu;
Maybe a name for the GPU at least?
> + TRACE( "adding default fake GPU\n" );
> + add_gpu( &default_gpu, ctx );
> + }
> +
> + if (ctx->adapter_key)
> + {
> + NtClose( ctx->adapter_key );
> + ctx->adapter_key = NULL;
> + }
> +
> + adapter_index = ctx->adapter_count++;
> + video_index = ctx->video_count++;
> + ctx->monitor_count = 0;
This is making DeviceID and DeviceKey for monitors wrong. For example, a system with two monitors attached and active produces the following results with the attached test program.
master:src/wine$ wine ~/Dropbox/Stage/EnumAdapters/Release/EnumAdapters.exe
#0
DeviceName: \\.\DISPLAY1
DeviceString: NVIDIA GeForce GTX 1650 SUPER
StateFlags: 0x5 DISPLAY_DEVICE_ATTACHED_TO_DESKTOP DISPLAY_DEVICE_PRIMARY_DEVICE
DeviceID: PCI\VEN_10DE&DEV_2187&SUBSYS_00000000&REV_00
DeviceKey: \Registry\Machine\System\CurrentControlSet\Control\Video\{b27a3cb2-1986-4fa0-9233-a457231397dc}\0000
#0
DeviceName: \\.\DISPLAY1\Monitor0
DeviceString: Generic Non-PnP Monitor
StateFlags: 0x3 DISPLAY_DEVICE_ACTIVE DISPLAY_DEVICE_ATTACHED
DeviceID: MONITOR\Default_Monitor\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0000
DeviceKey: \Registry\Machine\System\CurrentControlSet\Control\Class\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0000
#1
DeviceName: \\.\DISPLAY2
DeviceString: NVIDIA GeForce GTX 1650 SUPER
StateFlags: 0x1 DISPLAY_DEVICE_ATTACHED_TO_DESKTOP
DeviceID: PCI\VEN_10DE&DEV_2187&SUBSYS_00000000&REV_00
DeviceKey: \Registry\Machine\System\CurrentControlSet\Control\Video\{b27a3cb2-1986-4fa0-9233-a457231397dc}\0001
#0
DeviceName: \\.\DISPLAY2\Monitor0
DeviceString: Generic Non-PnP Monitor
StateFlags: 0x3 DISPLAY_DEVICE_ACTIVE DISPLAY_DEVICE_ATTACHED
DeviceID: MONITOR\Default_Monitor\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0001
DeviceKey: \Registry\Machine\System\CurrentControlSet\Control\Class\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0001
After this patch series.
#0
DeviceName: \\.\DISPLAY1
DeviceString: NVIDIA GeForce GTX 1650 SUPER
StateFlags: 0x5 DISPLAY_DEVICE_ATTACHED_TO_DESKTOP DISPLAY_DEVICE_PRIMARY_DEVICE
DeviceID: PCI\VEN_10DE&DEV_2187&SUBSYS_00000000&REV_00
DeviceKey: \Registry\Machine\System\CurrentControlSet\Control\Video\{b27a3cb2-1986-4fa0-9233-a457231397dc}\0000
#0
DeviceName: \\.\DISPLAY1\Monitor0
DeviceString: Generic Non-PnP Monitor
StateFlags: 0x3 DISPLAY_DEVICE_ACTIVE DISPLAY_DEVICE_ATTACHED
DeviceID: MONITOR\Default_Monitor\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0000
DeviceKey: \Registry\Machine\System\CurrentControlSet\Control\Class\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0000
#1
DeviceName: \\.\DISPLAY2
DeviceString: NVIDIA GeForce GTX 1650 SUPER
StateFlags: 0x1 DISPLAY_DEVICE_ATTACHED_TO_DESKTOP
DeviceID: PCI\VEN_10DE&DEV_2187&SUBSYS_00000000&REV_00
DeviceKey: \Registry\Machine\System\CurrentControlSet\Control\Video\{b27a3cb2-1986-4fa0-9233-a457231397dc}\0001
#0
DeviceName: \\.\DISPLAY2\Monitor0
DeviceString: Generic Non-PnP Monitor
StateFlags: 0x3 DISPLAY_DEVICE_ACTIVE DISPLAY_DEVICE_ATTACHED
DeviceID: MONITOR\Default_Monitor\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0000
DeviceKey: \Registry\Machine\System\CurrentControlSet\Control\Class\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0000
Notice that the DeviceID and DeviceKey for both monitors are now having 0000 at the end.
I put the test program at https://zzhiyi.github.io/EnumAdapters.zip . It can be built with Visual Studio Community 2019 and I didn't bother to create makefile for it.
> +
> + if (!video_key && !(video_key = reg_create_key( NULL, devicemap_video_keyW, sizeof(devicemap_video_keyW),
> + REG_OPTION_VOLATILE, NULL )))
> + return;
> +
> + len = asciiz_to_unicode( bufferW, "\\Registry\\Machine\\System\\CurrentControlSet\\"
> + "Control\\Video\\" ) / sizeof(WCHAR) - 1;
> + lstrcpyW( bufferW + len, ctx->gpu_guid );
> + len += lstrlenW( bufferW + len );
> + sprintf( buffer, "\\%04x", adapter_index );
> + len += asciiz_to_unicode( bufferW + len, buffer ) / sizeof(WCHAR) - 1;
> + hkey = reg_create_key( NULL, bufferW, len * sizeof(WCHAR),
> + REG_OPTION_VOLATILE | REG_OPTION_CREATE_LINK, NULL );
> + if (!hkey) hkey = reg_create_key( NULL, bufferW, len * sizeof(WCHAR),
> + REG_OPTION_VOLATILE | REG_OPTION_OPEN_LINK, NULL );
> +
> + sprintf( name, "\\Device\\Video%u", video_index );
> + asciiz_to_unicode( nameW, name );
> + set_reg_value( video_key, nameW, REG_SZ, bufferW, (lstrlenW( bufferW ) + 1) * sizeof(WCHAR) );
> +
> + if (hkey)
> + {
> + sprintf( buffer, "\\Registry\\Machine\\System\\CurrentControlSet\\Control\\Class\\"
> + "%s\\%04X", guid_devclass_displayA, ctx->gpu_count - 1 );
> + len = asciiz_to_unicode( bufferW, buffer ) - sizeof(WCHAR);
> + set_reg_value( hkey, symbolic_link_valueW, REG_LINK, bufferW, len );
> + NtClose( hkey );
> + }
> + else ERR( "failed to create link key\n" );
> +
> + /* Following information is Wine specific, it doesn't really exist on Windows. */
> + len = asciiz_to_unicode( bufferW, "System\\CurrentControlSet\\Control\\Video\\" )
> + / sizeof(WCHAR) - 1;
> + lstrcpyW( bufferW + len, ctx->gpu_guid );
> + len += lstrlenW( bufferW + len );
> + sprintf( buffer, "\\%04x", adapter_index );
> + len += asciiz_to_unicode( bufferW + len, buffer ) / sizeof(WCHAR) - 1;
> + ctx->adapter_key = reg_create_key( config_key, bufferW, len * sizeof(WCHAR),
> + REG_OPTION_VOLATILE, NULL );
> +
> + set_reg_value( ctx->adapter_key, gpu_idW, REG_SZ, ctx->gpuid,
> + (lstrlenW( ctx->gpuid ) + 1) * sizeof(WCHAR) );
> + set_reg_value( ctx->adapter_key, state_flagsW, REG_DWORD, &adapter->state_flags,
> + sizeof(adapter->state_flags) );
> }
> static void add_monitor( const struct gdi_monitor *monitor, void *param )
>
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