Zhiyi Zhang : winex11.drv: Make screen helpers independent of Xinerama.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 25167fb286822c93582457815bcf069fef040976
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=25167fb286822c93582457815...

Author: Zhiyi Zhang <zzhang(a)codeweavers.com>
Date:   Wed Aug 14 16:23:55 2019 +0800

winex11.drv: Make screen helpers independent of Xinerama.

So that other display device handlers such as XRandR can be introduced
because they might report a virtual screen size with different top-left
corner and the primary screen may be different as well.

Signed-off-by: Zhiyi Zhang <zzhang(a)codeweavers.com>
Signed-off-by: Huw Davies <huw(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/winex11.drv/display.c  | 70 +++++++++++++++++++++++++++++++++++++++++++++
 dlls/winex11.drv/xinerama.c | 33 ---------------------
 2 files changed, 70 insertions(+), 33 deletions(-)

diff --git a/dlls/winex11.drv/display.c b/dlls/winex11.drv/display.c
index a0f8489..f96fd93 100644
--- a/dlls/winex11.drv/display.c
+++ b/dlls/winex11.drv/display.c
@@ -104,6 +104,34 @@ static const WCHAR monitor_hardware_idW[] = {
     'D','e','f','a','u','l','t','_','M','o','n','i','t','o','r',0,0};
 
 static struct x11drv_display_device_handler handler;
+static RECT virtual_screen_rect;
+static RECT primary_monitor_rect;
+
+POINT virtual_screen_to_root(INT x, INT y)
+{
+    POINT pt;
+    pt.x = x - virtual_screen_rect.left;
+    pt.y = y - virtual_screen_rect.top;
+    return pt;
+}
+
+POINT root_to_virtual_screen(INT x, INT y)
+{
+    POINT pt;
+    pt.x = x + virtual_screen_rect.left;
+    pt.y = y + virtual_screen_rect.top;
+    return pt;
+}
+
+RECT get_virtual_screen_rect(void)
+{
+    return virtual_screen_rect;
+}
+
+RECT get_primary_monitor_rect(void)
+{
+    return primary_monitor_rect;
+}
 
 void X11DRV_DisplayDevices_SetHandler(const struct x11drv_display_device_handler *new_handler)
 {
@@ -293,6 +321,9 @@ static BOOL X11DRV_InitMonitor(HDEVINFO devinfo, const struct x11drv_monitor *mo
     if (!SetupDiSetDevicePropertyW(devinfo, &device_data, &WINE_DEVPROPKEY_MONITOR_RCMONITOR, DEVPROP_TYPE_BINARY,
                                    (const BYTE *)&monitor->rc_monitor, sizeof(monitor->rc_monitor), 0))
         goto done;
+    UnionRect(&virtual_screen_rect, &virtual_screen_rect, &monitor->rc_monitor);
+    if (video_index == 0)
+        primary_monitor_rect = monitor->rc_monitor;
     /* RcWork */
     if (!SetupDiSetDevicePropertyW(devinfo, &device_data, &WINE_DEVPROPKEY_MONITOR_RCWORK, DEVPROP_TYPE_BINARY,
                                    (const BYTE *)&monitor->rc_work, sizeof(monitor->rc_work), 0))
@@ -317,6 +348,9 @@ static void prepare_devices(HKEY video_hkey)
     HDEVINFO devinfo;
     DWORD i = 0;
 
+    SetRectEmpty(&virtual_screen_rect);
+    SetRectEmpty(&primary_monitor_rect);
+
     /* Remove all monitors */
     devinfo = SetupDiGetClassDevsW(&GUID_DEVCLASS_MONITOR, displayW, NULL, 0);
     while (SetupDiEnumDeviceInfo(devinfo, i++, &device_data))
@@ -365,6 +399,36 @@ static void cleanup_devices(void)
     SetupDiDestroyDeviceInfoList(devinfo);
 }
 
+/* Initialize virtual screen rect and primary monitor rect for current process */
+static void init_screen_rects(void)
+{
+    SP_DEVINFO_DATA device_data = {sizeof(device_data)};
+    HDEVINFO devinfo;
+    DWORD type;
+    DWORD i = 0;
+    RECT rect;
+
+    /* Already initialized */
+    if (!IsRectEmpty(&virtual_screen_rect))
+        return;
+
+    devinfo = SetupDiGetClassDevsW(&GUID_DEVCLASS_MONITOR, displayW, NULL, 0);
+    while (SetupDiEnumDeviceInfo(devinfo, i++, &device_data))
+    {
+        if (!SetupDiGetDevicePropertyW(devinfo, &device_data, &WINE_DEVPROPKEY_MONITOR_RCMONITOR, &type, (BYTE *)&rect,
+                                       sizeof(rect), NULL, 0))
+            ERR("Failed to get monitor size property\n");
+
+        UnionRect(&virtual_screen_rect, &virtual_screen_rect, &rect);
+        if (i == 1)
+            primary_monitor_rect = rect;
+    }
+    SetupDiDestroyDeviceInfoList(devinfo);
+
+    TRACE("virtual screen rect:%s primary monitor rect:%s\n", wine_dbgstr_rect(&virtual_screen_rect),
+          wine_dbgstr_rect(&primary_monitor_rect));
+}
+
 void X11DRV_DisplayDevices_Init(BOOL force)
 {
     static const WCHAR init_mutexW[] = {'d','i','s','p','l','a','y','_','d','e','v','i','c','e','_','i','n','i','t',0};
@@ -393,7 +457,10 @@ void X11DRV_DisplayDevices_Init(BOOL force)
 
     /* Avoid unnecessary reinit */
     if (!force && disposition != REG_CREATED_NEW_KEY)
+    {
+        init_screen_rects();
         goto done;
+    }
 
     TRACE("via %s\n", wine_dbgstr_a(handler.name));
 
@@ -440,6 +507,9 @@ void X11DRV_DisplayDevices_Init(BOOL force)
         adapters = NULL;
     }
 
+    TRACE("virtual screen rect:%s primary monitor rect:%s\n", wine_dbgstr_rect(&virtual_screen_rect),
+          wine_dbgstr_rect(&primary_monitor_rect));
+
 done:
     cleanup_devices();
     SetupDiDestroyDeviceInfoList(monitor_devinfo);
diff --git a/dlls/winex11.drv/xinerama.c b/dlls/winex11.drv/xinerama.c
index 75ef3a2..370d34e 100644
--- a/dlls/winex11.drv/xinerama.c
+++ b/dlls/winex11.drv/xinerama.c
@@ -35,8 +35,6 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
 
-static RECT virtual_screen_rect;
-
 static MONITORINFOEXW default_monitor =
 {
     sizeof(default_monitor),    /* cbSize */
@@ -161,32 +159,6 @@ static inline int query_screens(void)
 
 #endif  /* SONAME_LIBXINERAMA */
 
-POINT virtual_screen_to_root( INT x, INT y )
-{
-    POINT pt;
-    pt.x = x - virtual_screen_rect.left;
-    pt.y = y - virtual_screen_rect.top;
-    return pt;
-}
-
-POINT root_to_virtual_screen( INT x, INT y )
-{
-    POINT pt;
-    pt.x = x + virtual_screen_rect.left;
-    pt.y = y + virtual_screen_rect.top;
-    return pt;
-}
-
-RECT get_virtual_screen_rect(void)
-{
-    return virtual_screen_rect;
-}
-
-RECT get_primary_monitor_rect(void)
-{
-    return get_primary()->rcMonitor;
-}
-
 static BOOL xinerama_get_gpus( struct x11drv_gpu **new_gpus, int *count )
 {
     static const WCHAR wine_adapterW[] = {'W','i','n','e',' ','A','d','a','p','t','e','r',0};
@@ -349,7 +321,6 @@ void xinerama_init( unsigned int width, unsigned int height )
     }
 
     primary = get_primary();
-    SetRectEmpty( &virtual_screen_rect );
 
     /* coordinates (0,0) have to point to the primary monitor origin */
     OffsetRect( &rect, -primary->rcMonitor.left, -primary->rcMonitor.top );
@@ -357,7 +328,6 @@ void xinerama_init( unsigned int width, unsigned int height )
     {
         OffsetRect( &monitors[i].rcMonitor, rect.left, rect.top );
         OffsetRect( &monitors[i].rcWork, rect.left, rect.top );
-        UnionRect( &virtual_screen_rect, &virtual_screen_rect, &monitors[i].rcMonitor );
         TRACE( "monitor 0x%x: %s work %s%s\n",
                i, wine_dbgstr_rect(&monitors[i].rcMonitor),
                wine_dbgstr_rect(&monitors[i].rcWork),
@@ -373,7 +343,4 @@ void xinerama_init( unsigned int width, unsigned int height )
     handler.pFreeAdapters = xinerama_free_adapters;
     handler.pFreeMonitors = xinerama_free_monitors;
     X11DRV_DisplayDevices_SetHandler( &handler );
-
-    TRACE( "virtual size: %s primary: %s\n",
-           wine_dbgstr_rect(&virtual_screen_rect), wine_dbgstr_rect(&primary->rcMonitor) );
 }