[PATCH 4/5] win32u: Keep track of the display source physical display mode.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/win32u/sysparams.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/dlls/win32u/sysparams.c b/dlls/win32u/sysparams.c
index a1d619cfbd9..93723d17fc3 100644
--- a/dlls/win32u/sysparams.c
+++ b/dlls/win32u/sysparams.c
@@ -39,6 +39,8 @@

WINE_DEFAULT_DEBUG_CHANNEL(system);

+#define WINE_ENUM_PHYSICAL_SETTINGS  ((DWORD) -3)
+
 static LONG dpi_context; /* process DPI awareness context */

static HKEY video_key, enum_key, control_key, config_key, volatile_base_key;
@@ -71,6 +73,7 @@ static const WCHAR noW[] = {'N','o',0};
 static const WCHAR modesW[] = {'M','o','d','e','s',0};
 static const WCHAR mode_countW[] = {'M','o','d','e','C','o','u','n','t',0};
 static const WCHAR dpiW[] = {'D','p','i',0};
+static const WCHAR physicalW[] = {'P','h','y','s','i','c','a','l',0};

static const char  guid_devclass_displayA[] = "{4D36E968-E325-11CE-BFC1-08002BE10318}";
 static const WCHAR guid_devclass_displayW[] =
@@ -112,6 +115,7 @@ struct source
     UINT monitor_count;
     UINT mode_count;
     DEVMODEW current;
+    DEVMODEW physical;
     DEVMODEW *modes;
 };

@@ -430,10 +434,11 @@ static BOOL write_source_mode( HKEY hkey, UINT index, const DEVMODEW *mode )
 {
     WCHAR bufferW[MAX_PATH] = {0};

-    assert( index == ENUM_CURRENT_SETTINGS || index == ENUM_REGISTRY_SETTINGS );
+    assert( index == ENUM_CURRENT_SETTINGS || index == ENUM_REGISTRY_SETTINGS || index == WINE_ENUM_PHYSICAL_SETTINGS );

if (index == ENUM_CURRENT_SETTINGS) asciiz_to_unicode( bufferW, "Current" );
     else if (index == ENUM_REGISTRY_SETTINGS) asciiz_to_unicode( bufferW, "Registry" );
+    else if (index == WINE_ENUM_PHYSICAL_SETTINGS) asciiz_to_unicode( bufferW, "Physical" );
     else return FALSE;

return set_reg_value( hkey, bufferW, REG_BINARY, &mode->dmFields, sizeof(*mode) - offsetof(DEVMODEW, dmFields) );
@@ -445,10 +450,11 @@ static BOOL read_source_mode( HKEY hkey, UINT index, DEVMODEW *mode )
     KEY_VALUE_PARTIAL_INFORMATION *value = (void *)value_buf;
     const char *key;

-    assert( index == ENUM_CURRENT_SETTINGS || index == ENUM_REGISTRY_SETTINGS );
+    assert( index == ENUM_CURRENT_SETTINGS || index == ENUM_REGISTRY_SETTINGS || index == WINE_ENUM_PHYSICAL_SETTINGS );

if (index == ENUM_CURRENT_SETTINGS) key = "Current";
     else if (index == ENUM_REGISTRY_SETTINGS) key = "Registry";
+    else if (index == WINE_ENUM_PHYSICAL_SETTINGS) key = "Physical";
     else return FALSE;

if (!query_reg_ascii_value( hkey, key, value, sizeof(value_buf) )) return FALSE;
@@ -639,9 +645,11 @@ static BOOL read_source_from_registry( unsigned int index, struct source *source
     }
     value = (void *)buffer;

-    /* Cache current display mode */
+    /* Cache current and physical display modes */
     if (read_source_mode( hkey, ENUM_CURRENT_SETTINGS, &source->current ))
         source->current.dmSize = sizeof(source->current);
+    if (read_source_mode( hkey, WINE_ENUM_PHYSICAL_SETTINGS, &source->physical ))
+        source->physical.dmSize = sizeof(source->physical);

/* DeviceID */
     size = query_reg_ascii_value( hkey, "GPUID", value, sizeof(buffer) );
@@ -1587,7 +1595,10 @@ static void add_modes( const DEVMODEW *current, UINT modes_count, const DEVMODEW
     if (!(ctx->source.state_flags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP)) current = &detached;

if (modes_count > 1 || current == &detached)
+    {
+        reg_delete_value( ctx->source_key, physicalW );
         virtual_modes = NULL;
+    }
     else
     {
         if (!read_source_mode( ctx->source_key, ENUM_CURRENT_SETTINGS, &virtual ))
@@ -1598,6 +1609,8 @@ static void add_modes( const DEVMODEW *current, UINT modes_count, const DEVMODEW
             modes_count = virtual_count;
             modes = virtual_modes;
             current = &virtual;
+
+            write_source_mode( ctx->source_key, WINE_ENUM_PHYSICAL_SETTINGS, &physical );
         }
     }

@@ -3592,6 +3605,7 @@ BOOL WINAPI NtUserEnumDisplaySettings( UNICODE_STRING *device, DWORD index, DEVM

if (index == ENUM_REGISTRY_SETTINGS) ret = source_get_registry_settings( source, devmode );
     else if (index == ENUM_CURRENT_SETTINGS) source_get_current_settings( source, devmode );
+    else if (index == WINE_ENUM_PHYSICAL_SETTINGS) ret = FALSE;
     else ret = source_enum_display_settings( source, index, devmode, flags );
     source_release( source );