[mbosma] 18872: Check if CanCreateSurface is implemented by the driver before calling it.

Check if CanCreateSurface is implemented by the driver before calling
it.
Modified: trunk/reactos/lib/ddraw/main/surface.c
  _____

Modified: trunk/reactos/lib/ddraw/main/surface.c
--- trunk/reactos/lib/ddraw/main/surface.c	2005-10-30 08:41:19 UTC
(rev 18871)
+++ trunk/reactos/lib/ddraw/main/surface.c	2005-10-30 08:46:46 UTC
(rev 18872)
@@ -26,17 +26,20 @@

This->owner = (IDirectDrawImpl*)pDD;

-	/* can the driver create the surface */
-	DDHAL_CANCREATESURFACEDATA CanCreateData;
-	memset(&CanCreateData, 0, sizeof(DDHAL_CANCREATESURFACEDATA));
-	CanCreateData.lpDD = &This->owner->DirectDrawGlobal; 
-	CanCreateData.lpDDSurfaceDesc = (DDSURFACEDESC*)pDDSD;
+	if (This->owner->DirectDrawGlobal.lpDDCBtmp->HALDD.dwFlags &
DDHAL_CB32_CANCREATESURFACE)
+	{
+		/* can the driver create the surface */
+		DDHAL_CANCREATESURFACEDATA CanCreateData;
+		memset(&CanCreateData, 0,
sizeof(DDHAL_CANCREATESURFACEDATA));
+		CanCreateData.lpDD = &This->owner->DirectDrawGlobal; 
+		CanCreateData.lpDDSurfaceDesc = (DDSURFACEDESC*)pDDSD;
+			
+		if
(This->owner->DirectDrawGlobal.lpDDCBtmp->HALDD.CanCreateSurface(&CanCre
ateData) == DDHAL_DRIVER_NOTHANDLED)
+			return DDERR_INVALIDPARAMS;
    	
-	if
(This->owner->DirectDrawGlobal.lpDDCBtmp->HALDD.CanCreateSurface(&CanCre
ateData) == DDHAL_DRIVER_NOTHANDLED)
-        return DDERR_INVALIDPARAMS;
-	
-	if(CanCreateData.ddRVal != DD_OK)
-		return CanCreateData.ddRVal;
+		if(CanCreateData.ddRVal != DD_OK)
+			return CanCreateData.ddRVal;
+	}

/* down here we got a crach */

@@ -81,6 +84,7 @@
    CreateData.lplpSList = pLocal;	
    
    /* this is the call we were waiting for */
+	MessageBox(0,0,0,0);

if(This->owner->DirectDrawGlobal.lpDDCBtmp->HALDD.CreateSurface(&CreateD
ata) == DDHAL_DRIVER_NOTHANDLED)
    	return DDERR_INVALIDPARAMS;