[jgardou] 46733: [WIN32K] -Make direct DC release shared lock on surface each time they're unlocked. -Now they don't hold it unless they're locked themselves. -Do not create the device surface when switching modes, this is inconsistent with the PDEVOBJ creation, which does not. *No more "you are freeing a surface which is still hold" debug message when switching modes*

Author: jgardou
Date: Mon Apr  5 12:58:43 2010
New Revision: 46733

URL: http://svn.reactos.org/svn/reactos?rev=46733&view=rev
Log:
[WIN32K]
  -Make direct DC release shared lock on surface each time they're unlocked.
  -Now they don't hold it unless they're locked themselves.
  -Do not create the device surface when switching modes, this is inconsistent with the
PDEVOBJ creation, which does not.

*No more "you are freeing a surface which is still hold" debug message when
switching modes*

Modified:
    branches/reactos-yarotows/subsystems/win32/win32k/eng/pdevobj.c
    branches/reactos-yarotows/subsystems/win32/win32k/include/dc.h
    branches/reactos-yarotows/subsystems/win32/win32k/objects/dclife.c

Modified: branches/reactos-yarotows/subsystems/win32/win32k/eng/pdevobj.c
URL:
http://svn.reactos.org/svn/reactos/branches/reactos-yarotows/subsystems/win…
==============================================================================
--- branches/reactos-yarotows/subsystems/win32/win32k/eng/pdevobj.c [iso-8859-1]
(original)
+++ branches/reactos-yarotows/subsystems/win32/win32k/eng/pdevobj.c [iso-8859-1] Mon Apr 
5 12:58:43 2010
@@ -60,8 +60,7 @@
         /* Do we have a surface? */
         if(ppdev->pSurface)
         {
-            /* Release the surface and let the driver free it */
-            SURFACE_ShareUnlockSurface(ppdev->pSurface);
+            /* No one should hold a lock on this surface */
             ppdev->pfn.DisableSurface(ppdev->dhpdev);
         }
 
@@ -147,7 +146,7 @@
 {
     HSURF hsurf;
 
-    DPRINT1("PDEVOBJ_pSurface()\n");
+    DPRINT("PDEVOBJ_pSurface()\n");
 
     /* Check if we already have a surface */
     if (ppdev->pSurface)
@@ -164,7 +163,7 @@
         ppdev->pSurface = SURFACE_ShareLockSurface(hsurf);
     }
 
-    DPRINT1("PDEVOBJ_pSurface() returning %p\n", ppdev->pSurface);
+    DPRINT("PDEVOBJ_pSurface() returning %p\n", ppdev->pSurface);
     return ppdev->pSurface;
 }
 
@@ -292,7 +291,6 @@
     PPDEVOBJ ppdev2)
 {
     PDEVOBJ pdevTmp;
-    HDEV hdev;
 
     /* Exchange data */
     pdevTmp = *ppdev;
@@ -312,9 +310,10 @@
     /* Exchange surface */
     ppdev->pSurface = ppdev2->pSurface;
     ppdev2->pSurface = pdevTmp.pSurface;
-    hdev = ppdev->pSurface->SurfObj.hdev;
-    ppdev->pSurface->SurfObj.hdev = ppdev2->pSurface->SurfObj.hdev;
-    ppdev2->pSurface->SurfObj.hdev = hdev;
+    if(ppdev->pSurface)
+        ppdev->pSurface->SurfObj.hdev = (HDEV)ppdev;
+    if(ppdev2->pSurface)
+        ppdev2->pSurface->SurfObj.hdev = (HDEV)ppdev2;
 
     /* Exchange devinfo */
     ppdev->devinfo = ppdev2->devinfo;
@@ -338,7 +337,6 @@
 {
     UNICODE_STRING ustrDevice;
     PPDEVOBJ ppdevTmp;
-    PSURFACE pSurface;
     BOOL retval = FALSE;
 
     /* Lock the PDEV */
@@ -367,25 +365,14 @@
         goto leave;
     }
 
-    /* 3. Create a new surface */
-    pSurface = PDEVOBJ_pSurface(ppdevTmp);
-    if (!pSurface)
-    {
-        DPRINT1("DrvEnableSurface failed\n");
-        goto leave;
-    }
-
-    ASSERT(pSurface->BitsLock);
-
-    /* 4. Get DirectDraw information */
-    /* 5. Enable DirectDraw Not traced */
-    /* 6. Copy old PDEV state to new PDEV instance */
-
-    /* 7. Switch the PDEVs */
+    /* 3. Get DirectDraw information */
+    /* 4. Enable DirectDraw Not traced */
+    /* 5. Copy old PDEV state to new PDEV instance */
+
+    /* 6. Switch the PDEVs */
     PDEVOBJ_vSwitchPdev(ppdev, ppdevTmp);
-    ASSERT(ppdev->pSurface->BitsLock);
-
-    /* 8. Disable DirectDraw */
+
+    /* 7. Disable DirectDraw */
 
     PDEVOBJ_vRelease(ppdevTmp);
 
@@ -397,7 +384,6 @@
     EngReleaseSemaphore(ghsemPDEV);
 
     DPRINT1("leave, ppdev = %p, pSurface = %p\n", ppdev, ppdev->pSurface);
-    ASSERT(ppdev->pSurface->BitsLock);
 
     return retval;
 }

Modified: branches/reactos-yarotows/subsystems/win32/win32k/include/dc.h
URL:
http://svn.reactos.org/svn/reactos/branches/reactos-yarotows/subsystems/win…
==============================================================================
--- branches/reactos-yarotows/subsystems/win32/win32k/include/dc.h [iso-8859-1]
(original)
+++ branches/reactos-yarotows/subsystems/win32/win32k/include/dc.h [iso-8859-1] Mon Apr  5
12:58:43 2010
@@ -176,12 +176,9 @@
         /* Acquire shared PDEV lock */
         EngAcquireSemaphoreShared(pdc->ppdev->hsemDevLock);
 
-        /* Update Surface if needed */
-        if(pdc->dclevel.pSurface != pdc->ppdev->pSurface)
-        {
-            if(pdc->dclevel.pSurface)
SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
-            pdc->dclevel.pSurface = PDEVOBJ_pSurface(pdc->ppdev);
-        }
+        /* Assign Surface */
+        pdc->dclevel.pSurface = PDEVOBJ_pSurface(pdc->ppdev);
+
     }
     return pdc;
 }
@@ -192,6 +189,8 @@
 {
     if(pdc->dctype == DCTYPE_DIRECT)
     {
+        /* Release surface lock */
+        SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
         /* Release PDEV lock */
         EngReleaseSemaphore(pdc->ppdev->hsemDevLock);
     }

Modified: branches/reactos-yarotows/subsystems/win32/win32k/objects/dclife.c
URL:
http://svn.reactos.org/svn/reactos/branches/reactos-yarotows/subsystems/win…
==============================================================================
--- branches/reactos-yarotows/subsystems/win32/win32k/objects/dclife.c [iso-8859-1]
(original)
+++ branches/reactos-yarotows/subsystems/win32/win32k/objects/dclife.c [iso-8859-1] Mon
Apr  5 12:58:43 2010
@@ -377,7 +377,8 @@
 
     PATH_Delete(pdc->dclevel.hPath);
 
-    if(pdc->dclevel.pSurface)
+    /* Ideally, no DC should hold a lock on a surface when being deleted */
+    if(pdc->dclevel.pSurface && pdc->dctype != DCTYPE_DIRECT)
         SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
 
     PDEVOBJ_vRelease(pdc->ppdev) ;