Changeset 50259 in vbox

Timestamp:

Jan 28, 2014 2:17:48 PM (11 years ago)

Author:

vboxsync

Message:

DevVGA: VBVAPause

Location:

trunk/src/VBox/Devices/Graphics

Files:

• DevVGA.cpp (modified) (2 diffs)
• DevVGA.h (modified) (1 diff)
• DevVGA_VBVA.cpp (modified) (4 diffs)

trunk/src/VBox/Devices/Graphics/DevVGA.cpp

@@ -1037 +1037 @@
 #else
         {
-            /* reset when VBE is switched off */
-            bool fNeedRest = !(val & VBE_DISPI_ENABLED) && (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED);
-
             if ((val & VBE_DISPI_ENABLED) &&
                 !(pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED)) {
@@ -1132 +1129 @@
             pThis->pDrv->pfnLFBModeChange(pThis->pDrv, (val & VBE_DISPI_ENABLED) != 0);
 #ifdef VBOX_WITH_HGSMI
-            if (fNeedRest)
-                VBVAReset(pThis);
+            VBVAPause(pThis, (val & VBE_DISPI_ENABLED) == 0);
 #endif /* VBOX_WITH_HGSMI */
 

trunk/src/VBox/Devices/Graphics/DevVGA.h

@@ -593 +593 @@
 int      VBVAUpdateDisplay (PVGASTATE pVGAState);
 void     VBVAReset (PVGASTATE pVGAState);
+void     VBVAPause (PVGASTATE pVGAState, bool fPause);
 int      VBVAGetScreenInfo(PVGASTATE pVGAState, unsigned uScreenId, struct VBVAINFOSCREEN *pScreen, void **ppvVram);
 

trunk/src/VBox/Devices/Graphics/DevVGA_VBVA.cpp

@@ -82 +82 @@
     VBVAVIEW aViews[64 /* @todo SchemaDefs::MaxGuestMonitors*/];
     VBVAMOUSESHAPEINFO mouseShapeInfo;
+    bool fPaused;
 } VBVACONTEXT;
 
@@ -2321 +2322 @@
 }
 
+/* When VBVA is paused, then VGA device is allowed to work but
+ * no HGSMI etc state is changed.
+ */
+void VBVAPause(PVGASTATE pVGAState, bool fPause)
+{
+    if (!pVGAState || !pVGAState->pHGSMI)
+    {
+        return;
+    }
+
+    VBVACONTEXT *pCtx = (VBVACONTEXT *)HGSMIContext(pVGAState->pHGSMI);
+
+    if (pCtx)
+    {
+        pCtx->fPaused = fPause;
+    }
+}
+
 void VBVAReset (PVGASTATE pVGAState)
 {
@@ -2369 +2388 @@
     if (pCtx)
     {
-        rc = vbvaFlush (pVGAState, pCtx);
-
-        if (RT_SUCCESS (rc))
-        {
-            if (!pCtx->aViews[0].pVBVA)
-            {
-                /* VBVA is not enabled for the first view, so VGA device must do updates. */
-                rc = VERR_NOT_SUPPORTED;
+        if (!pCtx->fPaused)
+        {
+            rc = vbvaFlush (pVGAState, pCtx);
+
+            if (RT_SUCCESS (rc))
+            {
+                if (!pCtx->aViews[0].pVBVA)
+                {
+                    /* VBVA is not enabled for the first view, so VGA device must do updates. */
+                    rc = VERR_NOT_SUPPORTED;
+                }
             }
         }
@@ -2413 +2435 @@
              VBVACONTEXT *pCtx = (VBVACONTEXT *)HGSMIContext (pVGAState->pHGSMI);
              pCtx->cViews = pVGAState->cMonitors;
+             pCtx->fPaused = true;
          }
      }