wined3d: Update the glOrtho between 2 rhw draws if the viewport was changed.

dlls/wined3d/device.c

@@ -2695,6 +2695,7 @@ HRESULT WINAPI IWineD3DDeviceImpl_SetViewport(IWineD3DDevice *iface, CONST WINED
         TRACE("Recording... not performing anything\n");
         return D3D_OK;
     }
+    This->viewport_changed = TRUE;
 
     ENTER_GL();
 

dlls/wined3d/drawprim.c

@@ -200,10 +200,11 @@ static BOOL primitiveInitState(IWineD3DDevice *iface, BOOL vtx_transformed, BOOL
     if (!useVS && vtx_transformed) {
 
         /* If the last draw was transformed as well, no need to reapply all the matrixes */
-        if (!This->last_was_rhw) {
+        if ( (!This->last_was_rhw) || (This->viewport_changed) ) {
 
             double X, Y, height, width, minZ, maxZ;
             This->last_was_rhw = TRUE;
+            This->viewport_changed = FALSE;
 
             /* Transformed already into viewport coordinates, so we do not need transform
                matrices. Reset all matrices to identity and leave the default matrix in world

dlls/wined3d/surface.c

@@ -708,10 +708,11 @@ HRESULT WINAPI IWineD3DSurfaceImpl_UnlockRect(IWineD3DSurface *iface) {
             /* glDrawPixels transforms the raster position as though it was a vertex -
                we want to draw at screen position 0,0 - Set up ortho (rhw) mode as
                per drawprim (and leave set - it will sort itself out due to last_was_rhw */
-            if (!myDevice->last_was_rhw) {
+            if ( (!myDevice->last_was_rhw) || (myDevice->viewport_changed) ) {
 
                 double X, Y, height, width, minZ, maxZ;
                 myDevice->last_was_rhw = TRUE;
+                myDevice->viewport_changed = FALSE;
 
                 /* Transformed already into viewport coordinates, so we do not need transform
                    matrices. Reset all matrices to identity and leave the default matrix in world

dlls/wined3d/wined3d_private.h

@@ -494,6 +494,7 @@ typedef struct IWineD3DDeviceImpl
     BOOL                    proj_valid;
     BOOL                    view_ident;        /* true iff view matrix is identity                */
     BOOL                    last_was_rhw;      /* true iff last draw_primitive was in xyzrhw mode */
+    BOOL                    viewport_changed;  /* Was the viewport changed since the last draw?   */
     GLenum                  tracking_parm;     /* Which source is tracking current colour         */
     LONG                    tracking_color;    /* used iff GL_COLOR_MATERIAL was enabled          */
 #define                         DISABLED_TRACKING  0  /* Disabled                                 */