xorg: work on screen dirty update, still off by defualt, fix for rail

24 files changed, 553 insertions, 85 deletions

diff --git a/xorg/X11R7.6/rdp/rdp.h b/xorg/X11R7.6/rdp/rdp.h
index 695a2bde..572bc6f4 100644
--- a/xorg/X11R7.6/rdp/rdp.h
+++ b/xorg/X11R7.6/rdp/rdp.h
@@ -197,6 +197,7 @@ typedef rdpWindowRec* rdpWindowPtr;
 #define RDI_IMGLL 2 /* lossless */
 #define RDI_IMGLY 3 /* lossy */
 #define RDI_LINE 4
+#define RDI_SCRBLT 5
 
 struct urdp_draw_item_fill
 {
@@ -223,11 +224,22 @@ struct urdp_draw_item_line
   int flags;
 };
 
+struct urdp_draw_item_scrblt
+{
+  int srcx;
+  int srcy;
+  int dstx;
+  int dsty;
+  int cx;
+  int cy;
+};
+
 union urdp_draw_item
 {
   struct urdp_draw_item_fill fill;
   struct urdp_draw_item_img img;
   struct urdp_draw_item_line line;
+  struct urdp_draw_item_scrblt scrblt;
 };
 
 struct rdp_draw_item
@@ -337,7 +349,10 @@ int
 draw_item_add_line_region(rdpPixmapRec* priv, RegionPtr reg, int color,
                           int opcode, int width, xSegment* segs, int nsegs,
                           int is_segment);
-
+int
+draw_item_add_srcblt_region(rdpPixmapRec* priv, RegionPtr reg,
+                            int srcx, int srcy, int dstx, int dsty,
+                            int cx, int cy);
 
 PixmapPtr
 rdpCreatePixmap(ScreenPtr pScreen, int width, int height, int depth,
@@ -502,6 +517,11 @@ void
 rdpup_delete_window(WindowPtr pWindow, rdpWindowRec* priv);
 int
 rdpup_check_dirty(PixmapPtr pDirtyPixmap, rdpPixmapRec* pDirtyPriv);
+int
+rdpup_check_dirty_screen(rdpPixmapRec* pDirtyPriv);
+
+void
+rdpScheduleDeferredUpdate(void);
 
 #if defined(X_BYTE_ORDER)
 #  if X_BYTE_ORDER == X_LITTLE_ENDIAN
diff --git a/xorg/X11R7.6/rdp/rdpCopyArea.c b/xorg/X11R7.6/rdp/rdpCopyArea.c
index 4b35d9fb..674bce13 100644
--- a/xorg/X11R7.6/rdp/rdpCopyArea.c
+++ b/xorg/X11R7.6/rdp/rdpCopyArea.c
@@ -39,6 +39,8 @@ extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_can_do_pix_to_pix; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -358,6 +360,7 @@ rdpCopyArea(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
     pSrcWnd = (WindowPtr)pSrc;
     if (pSrcWnd->viewable)
     {
+      rdpup_check_dirty_screen(&g_screenPriv);
       if (pDst->type == DRAWABLE_WINDOW)
       {
         pDstWnd = (WindowPtr)pDst;
@@ -399,6 +402,7 @@ rdpCopyArea(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
         pDstWnd = (WindowPtr)pDst;
         if (pDstWnd->viewable)
         {
+          rdpup_check_dirty_screen(&g_screenPriv);
           rdpup_check_dirty(pSrcPixmap, pSrcPriv);
           return rdpCopyAreaPixmapToWnd(pSrcPixmap, pSrcPriv, pDstWnd, pGC,
                                         srcx, srcy, w, h, dstx, dsty);
@@ -463,8 +467,18 @@ rdpCopyArea(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpCopyArea: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpCopyPlane.c b/xorg/X11R7.6/rdp/rdpCopyPlane.c
index 389dc6e1..46514b42 100644
--- a/xorg/X11R7.6/rdp/rdpCopyPlane.c
+++ b/xorg/X11R7.6/rdp/rdpCopyPlane.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -128,8 +130,18 @@ rdpCopyPlane(DrawablePtr pSrc, DrawablePtr pDst,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpCopyPlane: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpFillPolygon.c b/xorg/X11R7.6/rdp/rdpFillPolygon.c
index bf71c094..5286b616 100644
--- a/xorg/X11R7.6/rdp/rdpFillPolygon.c
+++ b/xorg/X11R7.6/rdp/rdpFillPolygon.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -161,8 +163,18 @@ rdpFillPolygon(DrawablePtr pDrawable, GCPtr pGC,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpFillPolygon: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpFillSpans.c b/xorg/X11R7.6/rdp/rdpFillSpans.c
index 5c3dcc67..1f655d01 100644
--- a/xorg/X11R7.6/rdp/rdpFillSpans.c
+++ b/xorg/X11R7.6/rdp/rdpFillSpans.c
@@ -68,7 +68,7 @@ rdpFillSpans(DrawablePtr pDrawable, GCPtr pGC, int nInit,
   PixmapPtr pDstPixmap;
   rdpPixmapRec* pDstPriv;
 
-  LLOGLN(10, ("rdpFillSpans: todo"));
+  LLOGLN(0, ("rdpFillSpans: todo"));
 
   /* do original call */
   rdpFillSpansOrg(pDrawable, pGC, nInit, pptInit, pwidthInit, fSorted);
diff --git a/xorg/X11R7.6/rdp/rdpImageGlyphBlt.c b/xorg/X11R7.6/rdp/rdpImageGlyphBlt.c
index 25d23a51..156066a0 100644
--- a/xorg/X11R7.6/rdp/rdpImageGlyphBlt.c
+++ b/xorg/X11R7.6/rdp/rdpImageGlyphBlt.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -125,8 +127,18 @@ rdpImageGlyphBlt(DrawablePtr pDrawable, GCPtr pGC,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpImageGlyphBlt: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpImageText16.c b/xorg/X11R7.6/rdp/rdpImageText16.c
index 103344c6..ea2938ca 100644
--- a/xorg/X11R7.6/rdp/rdpImageText16.c
+++ b/xorg/X11R7.6/rdp/rdpImageText16.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -123,8 +125,18 @@ rdpImageText16(DrawablePtr pDrawable, GCPtr pGC,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpImageText16: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpImageText8.c b/xorg/X11R7.6/rdp/rdpImageText8.c
index ba958a21..2f34e12e 100644
--- a/xorg/X11R7.6/rdp/rdpImageText8.c
+++ b/xorg/X11R7.6/rdp/rdpImageText8.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -123,8 +125,18 @@ rdpImageText8(DrawablePtr pDrawable, GCPtr pGC,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpImageText8: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpPolyArc.c b/xorg/X11R7.6/rdp/rdpPolyArc.c
index ba890f0c..5686bcd5 100644
--- a/xorg/X11R7.6/rdp/rdpPolyArc.c
+++ b/xorg/X11R7.6/rdp/rdpPolyArc.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -138,8 +140,18 @@ rdpPolyArc(DrawablePtr pDrawable, GCPtr pGC, int narcs, xArc* parcs)
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpPolyArc: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpPolyFillArc.c b/xorg/X11R7.6/rdp/rdpPolyFillArc.c
index cb8f2801..edd30577 100644
--- a/xorg/X11R7.6/rdp/rdpPolyFillArc.c
+++ b/xorg/X11R7.6/rdp/rdpPolyFillArc.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -138,8 +140,18 @@ rdpPolyFillArc(DrawablePtr pDrawable, GCPtr pGC, int narcs, xArc* parcs)
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpPolyFillArc: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpPolyFillRect.c b/xorg/X11R7.6/rdp/rdpPolyFillRect.c
index 5dda6b7e..5cbead6f 100644
--- a/xorg/X11R7.6/rdp/rdpPolyFillRect.c
+++ b/xorg/X11R7.6/rdp/rdpPolyFillRect.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -100,6 +102,7 @@ rdpPolyFillRect(DrawablePtr pDrawable, GCPtr pGC, int nrectFill,
       post_process = 1;
       if (g_do_dirty_os)
       {
+        LLOGLN(10, ("rdpPolyFillRect: gettig dirty"));
         pDstPriv->is_dirty = 1;
         pDirtyPriv = pDstPriv;
         dirty_type = RDI_FILL;
@@ -121,8 +124,18 @@ rdpPolyFillRect(DrawablePtr pDrawable, GCPtr pGC, int nrectFill,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpPolyFillRect: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpPolyGlyphBlt.c b/xorg/X11R7.6/rdp/rdpPolyGlyphBlt.c
index 89ae85b4..f67f80b7 100644
--- a/xorg/X11R7.6/rdp/rdpPolyGlyphBlt.c
+++ b/xorg/X11R7.6/rdp/rdpPolyGlyphBlt.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -125,8 +127,18 @@ rdpPolyGlyphBlt(DrawablePtr pDrawable, GCPtr pGC,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpPolyGlyphBlt: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpPolyPoint.c b/xorg/X11R7.6/rdp/rdpPolyPoint.c
index cbbc4a98..48a993a0 100644
--- a/xorg/X11R7.6/rdp/rdpPolyPoint.c
+++ b/xorg/X11R7.6/rdp/rdpPolyPoint.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -167,8 +169,18 @@ rdpPolyPoint(DrawablePtr pDrawable, GCPtr pGC, int mode,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpPolyPoint: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpPolyRectangle.c b/xorg/X11R7.6/rdp/rdpPolyRectangle.c
index e2b38394..97218821 100644
--- a/xorg/X11R7.6/rdp/rdpPolyRectangle.c
+++ b/xorg/X11R7.6/rdp/rdpPolyRectangle.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -134,8 +136,18 @@ rdpPolyRectangle(DrawablePtr pDrawable, GCPtr pGC, int nrects,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpPolyRectangle: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpPolySegment.c b/xorg/X11R7.6/rdp/rdpPolySegment.c
index efab3cc0..c5fcc756 100644
--- a/xorg/X11R7.6/rdp/rdpPolySegment.c
+++ b/xorg/X11R7.6/rdp/rdpPolySegment.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -130,8 +132,18 @@ rdpPolySegment(DrawablePtr pDrawable, GCPtr pGC, int nseg, xSegment* pSegs)
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpPolySegment: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpPolyText16.c b/xorg/X11R7.6/rdp/rdpPolyText16.c
index aaea2434..d2182514 100644
--- a/xorg/X11R7.6/rdp/rdpPolyText16.c
+++ b/xorg/X11R7.6/rdp/rdpPolyText16.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -126,8 +128,18 @@ rdpPolyText16(DrawablePtr pDrawable, GCPtr pGC,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpPolyText16: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpPolyText8.c b/xorg/X11R7.6/rdp/rdpPolyText8.c
index 0b16cf26..29fb1667 100644
--- a/xorg/X11R7.6/rdp/rdpPolyText8.c
+++ b/xorg/X11R7.6/rdp/rdpPolyText8.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -126,8 +128,18 @@ rdpPolyText8(DrawablePtr pDrawable, GCPtr pGC,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpPolyText8: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpPolylines.c b/xorg/X11R7.6/rdp/rdpPolylines.c
index cbaf9c3e..96635465 100644
--- a/xorg/X11R7.6/rdp/rdpPolylines.c
+++ b/xorg/X11R7.6/rdp/rdpPolylines.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -174,8 +176,18 @@ rdpPolylines(DrawablePtr pDrawable, GCPtr pGC, int mode,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpPolylines: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpPushPixels.c b/xorg/X11R7.6/rdp/rdpPushPixels.c
index 06c5ba9f..2df01b8e 100644
--- a/xorg/X11R7.6/rdp/rdpPushPixels.c
+++ b/xorg/X11R7.6/rdp/rdpPushPixels.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -97,7 +99,7 @@ rdpPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr pDst,
       post_process = 1;
       if (g_do_dirty_os)
       {
-        LLOGLN(10, ("rdpPutImage: gettig dirty"));
+        LLOGLN(10, ("rdpPushPixels: gettig dirty"));
         pDstPriv->is_dirty = 1;
         pDirtyPriv = pDstPriv;
         dirty_type = RDI_IMGLY;
@@ -119,8 +121,18 @@ rdpPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr pDst,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpPushPixels: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpPutImage.c b/xorg/X11R7.6/rdp/rdpPutImage.c
index 798016f3..9464a513 100644
--- a/xorg/X11R7.6/rdp/rdpPutImage.c
+++ b/xorg/X11R7.6/rdp/rdpPutImage.c
@@ -38,6 +38,8 @@ extern int g_Bpp; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 extern GCOps g_rdpGCOps; /* from rdpdraw.c */
 
@@ -121,8 +123,18 @@ rdpPutImage(DrawablePtr pDst, GCPtr pGC, int depth, int x, int y,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpPutImage: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpSetSpans.c b/xorg/X11R7.6/rdp/rdpSetSpans.c
index aab36f88..ed9bc404 100644
--- a/xorg/X11R7.6/rdp/rdpSetSpans.c
+++ b/xorg/X11R7.6/rdp/rdpSetSpans.c
@@ -73,7 +73,7 @@ rdpSetSpans(DrawablePtr pDrawable, GCPtr pGC, char* psrc,
   rdpPixmapRec* pDstPriv;
   rdpPixmapRec* pDirtyPriv;
 
-  LLOGLN(10, ("rdpSetSpans: todo"));
+  LLOGLN(0, ("rdpSetSpans: todo"));
 
   /* do original call */
   rdpSetSpansOrg(pDrawable, pGC, psrc, ppt, pwidth, nspans, fSorted);
diff --git a/xorg/X11R7.6/rdp/rdpdraw.c b/xorg/X11R7.6/rdp/rdpdraw.c
index 78b2aa3d..95cdd487 100644
--- a/xorg/X11R7.6/rdp/rdpdraw.c
+++ b/xorg/X11R7.6/rdp/rdpdraw.c
@@ -62,6 +62,8 @@ extern Bool g_wrapPixmap; /* from rdpmain.c */
 extern WindowPtr g_invalidate_window; /* in rdpmain.c */
 extern int g_use_rail; /* in rdpmain.c */
 extern int g_do_dirty_os; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 ColormapPtr g_rdpInstalledColormap;
 
@@ -397,6 +399,10 @@ draw_item_add(rdpPixmapRec* priv, struct rdp_draw_item* di)
     priv->draw_item_tail->next = di;
     priv->draw_item_tail = di;
   }
+  if (priv == &g_screenPriv)
+  {
+    rdpScheduleDeferredUpdate();
+  }
   return 0;
 }
 
@@ -600,6 +606,29 @@ draw_item_add_line_region(rdpPixmapRec* priv, RegionPtr reg, int color,
 }
 
 /******************************************************************************/
+int
+draw_item_add_srcblt_region(rdpPixmapRec* priv, RegionPtr reg,
+                            int srcx, int srcy, int dstx, int dsty,
+                            int cx, int cy)
+{
+  struct rdp_draw_item* di;
+
+  LLOGLN(10, ("draw_item_add_srcblt_region:"));
+  di = (struct rdp_draw_item*)g_malloc(sizeof(struct rdp_draw_item), 1);
+  di->type = RDI_SCRBLT;
+  di->u.scrblt.srcx = srcx;
+  di->u.scrblt.srcy = srcy;
+  di->u.scrblt.dstx = dstx;
+  di->u.scrblt.dsty = dsty;
+  di->u.scrblt.cx = cx;
+  di->u.scrblt.cy = cy;
+  di->reg = RegionCreate(NullBox, 0);
+  RegionCopy(di->reg, reg);
+  draw_item_add(priv, di);
+  return 0;
+}
+
+/******************************************************************************/
 PixmapPtr
 rdpCreatePixmap(ScreenPtr pScreen, int width, int height, int depth,
                 unsigned usage_hint)
@@ -876,42 +905,50 @@ rdpCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr pOldRegion)
   RegionCopy(&clip, &pWin->borderClip);
   dx = pWin->drawable.x - ptOldOrg.x;
   dy = pWin->drawable.y - ptOldOrg.y;
-  rdpup_begin_update();
-  num_clip_rects = REGION_NUM_RECTS(&clip);
-  num_reg_rects = REGION_NUM_RECTS(&reg);
-  /* should maybe sort the rects instead of checking dy < 0 */
-  /* If we can depend on the rects going from top to bottom, left
-     to right we are ok */
-  if (dy < 0 || (dy == 0 && dx < 0))
+  if (g_do_dirty_ons)
   {
-    for (j = 0; j < num_clip_rects; j++)
+    LLOGLN(0, ("rdpCopyWindow: gettig dirty TODO"));
+    //draw_item_add_srcblt_region
+  }
+  else
+  {
+    rdpup_begin_update();
+    num_clip_rects = REGION_NUM_RECTS(&clip);
+    num_reg_rects = REGION_NUM_RECTS(&reg);
+    /* should maybe sort the rects instead of checking dy < 0 */
+    /* If we can depend on the rects going from top to bottom, left
+       to right we are ok */
+    if (dy < 0 || (dy == 0 && dx < 0))
     {
-      box1 = REGION_RECTS(&clip)[j];
-      rdpup_set_clip(box1.x1, box1.y1, box1.x2 - box1.x1, box1.y2 - box1.y1);
-      for (i = 0; i < num_reg_rects; i++)
+      for (j = 0; j < num_clip_rects; j++)
       {
-        box2 = REGION_RECTS(&reg)[i];
-        rdpup_screen_blt(box2.x1 + dx, box2.y1 + dy, box2.x2 - box2.x1,
-                         box2.y2 - box2.y1, box2.x1, box2.y1);
+        box1 = REGION_RECTS(&clip)[j];
+        rdpup_set_clip(box1.x1, box1.y1, box1.x2 - box1.x1, box1.y2 - box1.y1);
+        for (i = 0; i < num_reg_rects; i++)
+        {
+          box2 = REGION_RECTS(&reg)[i];
+          rdpup_screen_blt(box2.x1 + dx, box2.y1 + dy, box2.x2 - box2.x1,
+                           box2.y2 - box2.y1, box2.x1, box2.y1);
+        }
       }
     }
-  }
-  else
-  {
-    for (j = num_clip_rects - 1; j >= 0; j--)
+    else
     {
-      box1 = REGION_RECTS(&clip)[j];
-      rdpup_set_clip(box1.x1, box1.y1, box1.x2 - box1.x1, box1.y2 - box1.y1);
-      for (i = num_reg_rects - 1; i >= 0; i--)
+      for (j = num_clip_rects - 1; j >= 0; j--)
       {
-        box2 = REGION_RECTS(&reg)[i];
-        rdpup_screen_blt(box2.x1 + dx, box2.y1 + dy, box2.x2 - box2.x1,
-                         box2.y2 - box2.y1, box2.x1, box2.y1);
+        box1 = REGION_RECTS(&clip)[j];
+        rdpup_set_clip(box1.x1, box1.y1, box1.x2 - box1.x1, box1.y2 - box1.y1);
+        for (i = num_reg_rects - 1; i >= 0; i--)
+        {
+          box2 = REGION_RECTS(&reg)[i];
+          rdpup_screen_blt(box2.x1 + dx, box2.y1 + dy, box2.x2 - box2.x1,
+                           box2.y2 - box2.y1, box2.x1, box2.y1);
+        }
       }
     }
+    rdpup_reset_clip();
+    rdpup_end_update();
   }
-  rdpup_reset_clip();
-  rdpup_end_update();
   RegionUninit(&reg);
   RegionUninit(&clip);
   g_pScreen->CopyWindow = rdpCopyWindow;
@@ -947,13 +984,20 @@ rdpClearToBackground(WindowPtr pWin, int x, int y, int w, int h,
     }
     RegionInit(&reg, &box, 0);
     RegionIntersect(&reg, &reg, &pWin->clipList);
-    rdpup_begin_update();
-    for (j = REGION_NUM_RECTS(&reg) - 1; j >= 0; j--)
+    if (g_do_dirty_ons)
     {
-      box = REGION_RECTS(&reg)[j];
-      rdpup_send_area(0, box.x1, box.y1, box.x2 - box.x1, box.y2 - box.y1);
+      draw_item_add_img_region(&g_screenPriv, &reg, GXcopy, RDI_IMGLL);
+    }
+    else
+    {
+      rdpup_begin_update();
+      for (j = REGION_NUM_RECTS(&reg) - 1; j >= 0; j--)
+      {
+        box = REGION_RECTS(&reg)[j];
+        rdpup_send_area(0, box.x1, box.y1, box.x2 - box.x1, box.y2 - box.y1);
+      }
+      rdpup_end_update();
     }
-    rdpup_end_update();
     RegionUninit(&reg);
   }
   g_pScreen->ClearToBackground = rdpClearToBackground;
@@ -968,18 +1012,25 @@ rdpRestoreAreas(WindowPtr pWin, RegionPtr prgnExposed)
   int j;
   BoxRec box;
 
-  LLOGLN(10, ("in rdpRestoreAreas"));
+  LLOGLN(0, ("in rdpRestoreAreas"));
   RegionInit(&reg, NullBox, 0);
   RegionCopy(&reg, prgnExposed);
   g_pScreen->RestoreAreas = g_rdpScreen.RestoreAreas;
   rv = g_pScreen->RestoreAreas(pWin, prgnExposed);
-  rdpup_begin_update();
-  for (j = REGION_NUM_RECTS(&reg) - 1; j >= 0; j--)
+  if (g_do_dirty_ons)
   {
-    box = REGION_RECTS(&reg)[j];
-    rdpup_send_area(0, box.x1, box.y1, box.x2 - box.x1, box.y2 - box.y1);
+    draw_item_add_img_region(&g_screenPriv, &reg, GXcopy, RDI_IMGLL);
+  }
+  else
+  {
+    rdpup_begin_update();
+    for (j = REGION_NUM_RECTS(&reg) - 1; j >= 0; j--)
+    {
+      box = REGION_RECTS(&reg)[j];
+      rdpup_send_area(0, box.x1, box.y1, box.x2 - box.x1, box.y2 - box.y1);
+    }
+    rdpup_end_update();
   }
-  rdpup_end_update();
   RegionUninit(&reg);
   g_pScreen->RestoreAreas = rdpRestoreAreas;
   return rv;
@@ -1118,9 +1169,19 @@ rdpComposite(CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst,
       if (pDstWnd->viewable)
       {
         post_process = 1;
-        rdpup_get_screen_image_rect(&id);
-        got_id = 1;
-        LLOGLN(10, ("rdpComposite: screen"));
+        if (g_do_dirty_ons)
+        {
+          LLOGLN(0, ("rdpComposite: gettig dirty"));
+          g_screenPriv.is_dirty = 1;
+          pDirtyPriv = &g_screenPriv;
+          dirty_type = RDI_IMGLL;
+        }
+        else
+        {
+          rdpup_get_screen_image_rect(&id);
+          got_id = 1;
+          LLOGLN(10, ("rdpComposite: screen"));
+        }
       }
     }
   }
diff --git a/xorg/X11R7.6/rdp/rdpmain.c b/xorg/X11R7.6/rdp/rdpmain.c
index 48f5a2e9..8e9a3ba2 100644
--- a/xorg/X11R7.6/rdp/rdpmain.c
+++ b/xorg/X11R7.6/rdp/rdpmain.c
@@ -44,9 +44,12 @@ DeviceIntPtr g_keyboard = 0;
 
 int g_can_do_pix_to_pix = 1;
 int g_do_dirty_os = 1; /* delay remoting off screen bitmaps */
+int g_do_dirty_ons = 0; /* delay remoting screen */
 Bool g_wrapWindow = 1;
 Bool g_wrapPixmap = 1;
 
+rdpPixmapRec g_screenPriv;
+
 /* if true, running in RemoteApp / RAIL mode */
 int g_use_rail = 0;
 
@@ -225,6 +228,7 @@ rdpScreenInit(int index, ScreenPtr pScreen, int argc, char** argv)
   rrScrPrivPtr pRRScrPriv;
 
   g_pScreen = pScreen;
+  memset(&g_screenPriv, 0, sizeof(g_screenPriv));
 
   /*dpix = 75;
   dpiy = 75;*/
diff --git a/xorg/X11R7.6/rdp/rdpup.c b/xorg/X11R7.6/rdp/rdpup.c
index 81165a3a..b9b5b92f 100644
--- a/xorg/X11R7.6/rdp/rdpup.c
+++ b/xorg/X11R7.6/rdp/rdpup.c
@@ -50,6 +50,7 @@ static int g_scheduled = 0;
 static int g_count = 0;
 static int g_rdpindex = -1;
 
+extern DevPrivateKeyRec g_rdpWindowIndex; /* from rdpmain.c */
 extern ScreenPtr g_pScreen; /* from rdpmain.c */
 extern int g_Bpp; /* from rdpmain.c */
 extern int g_Bpp_mask; /* from rdpmain.c */
@@ -59,6 +60,8 @@ extern int g_use_rail; /* from rdpmain.c */
 /* true is to use unix domain socket */
 extern int g_use_uds; /* in rdpmain.c */
 extern char g_uds_data[]; /* in rdpmain.c */
+extern int g_do_dirty_ons; /* in rdpmain.c */
+extern rdpPixmapRec g_screenPriv; /* in rdpmain.c */
 
 struct rdpup_os_bitmap
 {
@@ -75,6 +78,12 @@ static int g_os_bitmap_stamp = 0;
 static int g_pixmap_byte_total = 0;
 static int g_pixmap_num_used = 0;
 
+struct rdpup_top_window
+{
+  WindowPtr wnd;
+  struct rdpup_top_window* next;
+};
+
 /*
 0 GXclear,        0
 1 GXnor,          DPon
@@ -327,13 +336,21 @@ rdpup_send_pending(void)
 static CARD32
 rdpDeferredUpdateCallback(OsTimerPtr timer, CARD32 now, pointer arg)
 {
-  rdpup_send_pending();
+  LLOGLN(10, ("rdpDeferredUpdateCallback"));
+  if (g_do_dirty_ons)
+  {
+    rdpup_check_dirty_screen(&g_screenPriv);
+  }
+  else
+  {
+    rdpup_send_pending();
+  }
   g_scheduled = 0;
   return 0;
 }
 
 /******************************************************************************/
-static void
+void
 rdpScheduleDeferredUpdate(void)
 {
   if (!g_scheduled)
@@ -540,6 +557,31 @@ process_version_msg(int param1, int param2, int param3, int param4)
 
 /******************************************************************************/
 static int
+rdpup_send_rail(void)
+{
+  WindowPtr wnd;
+  rdpWindowRec* priv;
+
+  wnd = g_pScreen->root;
+  if (wnd != 0)
+  {
+    wnd = wnd->lastChild;
+    while (wnd != 0)
+    {
+      if (wnd->realized)
+      {
+        priv = GETWINPRIV(wnd);
+        priv->status = 1;
+        rdpup_create_window(wnd, priv);
+      }
+      wnd = wnd->prevSib;
+    }
+  }
+  return 0;
+}
+
+/******************************************************************************/
+static int
 rdpup_process_msg(struct stream* s)
 {
   int msg_type;
@@ -661,6 +703,7 @@ rdpup_process_msg(struct stream* s)
     if (g_rdpScreen.client_info.rail_support_level > 0)
     {
       g_use_rail = 1;
+      rdpup_send_rail();
     }
   }
   else
@@ -829,6 +872,7 @@ rdpup_check(void)
 int
 rdpup_begin_update(void)
 {
+  LLOGLN(10, ("rdpup_begin_update"));
   if (g_connected)
   {
     if (g_begin)
@@ -850,9 +894,17 @@ rdpup_begin_update(void)
 int
 rdpup_end_update(void)
 {
+  LLOGLN(10, ("rdpup_end_update"));
   if (g_connected && g_begin)
   {
-    rdpScheduleDeferredUpdate();
+    if (g_do_dirty_ons)
+    {
+      rdpup_send_pending();
+    }
+    else
+    {
+      rdpScheduleDeferredUpdate();
+    }
   }
   return 0;
 }
@@ -1560,8 +1612,8 @@ rdpup_create_window(WindowPtr pWindow, rdpWindowRec* priv)
       out_uint16_le(g_out_s, pWindow->drawable.height); /* bottom */
     }
     flags |= WINDOW_ORDER_FIELD_WND_RECTS;
-    out_uint32_le(g_out_s, 0); /* visible_offset_x */
-    out_uint32_le(g_out_s, 0); /* visible_offset_y */
+    out_uint32_le(g_out_s, pWindow->drawable.x); /* visible_offset_x */
+    out_uint32_le(g_out_s, pWindow->drawable.y); /* visible_offset_y */
     flags |= WINDOW_ORDER_FIELD_VIS_OFFSET;
     out_uint16_le(g_out_s, num_visibility_rects); /* num_visibility_rects */
     for (index = 0; index < num_visibility_rects; index++)
@@ -1694,6 +1746,9 @@ rdpup_check_dirty(PixmapPtr pDirtyPixmap, rdpPixmapRec* pDirtyPriv)
         rdpup_reset_clip();
         rdpup_set_opcode(GXcopy);
         break;
+      case RDI_SCRBLT:
+        LLOGLN(10, ("  RDI_SCRBLT"));
+        break;
     }
     di = di->next;
   }
@@ -1703,3 +1758,112 @@ rdpup_check_dirty(PixmapPtr pDirtyPixmap, rdpPixmapRec* pDirtyPriv)
   rdpup_switch_os_surface(-1);
   return 0;
 }
+
+/******************************************************************************/
+int
+rdpup_check_dirty_screen(rdpPixmapRec* pDirtyPriv)
+{
+  int index;
+  int clip_index;
+  int count;
+  int num_clips;
+  BoxRec box;
+  xSegment* seg;
+  struct image_data id;
+  struct rdp_draw_item* di;
+
+  if (pDirtyPriv == 0)
+  {
+    return 0;
+  }
+  if (pDirtyPriv->is_dirty == 0)
+  {
+    return 0;
+  }
+
+  LLOGLN(10, ("-----------------got dirty"));
+  rdpup_get_screen_image_rect(&id);
+  rdpup_begin_update();
+  draw_item_pack(pDirtyPriv);
+  di = pDirtyPriv->draw_item_head;
+  while (di != 0)
+  {
+    LLOGLN(10, ("rdpup_check_dirty_screen: type %d", di->type));
+    switch (di->type)
+    {
+      case RDI_FILL:
+        rdpup_set_fgcolor(di->u.fill.fg_color);
+        rdpup_set_opcode(di->u.fill.opcode);
+        count = REGION_NUM_RECTS(di->reg);
+        for (index = 0; index < count; index++)
+        {
+          box = REGION_RECTS(di->reg)[index];
+          LLOGLN(10, ("  RDI_FILL %d %d %d %d", box.x1, box.y1,
+                 box.x2, box.y2));
+          rdpup_fill_rect(box.x1, box.y1, box.x2 - box.x1, box.y2 - box.y1);
+        }
+        rdpup_set_opcode(GXcopy);
+        break;
+      case RDI_IMGLL:
+        rdpup_set_hints(1, 1);
+        rdpup_set_opcode(di->u.img.opcode);
+        count = REGION_NUM_RECTS(di->reg);
+        for (index = 0; index < count; index++)
+        {
+          box = REGION_RECTS(di->reg)[index];
+          LLOGLN(10, ("  RDI_IMGLL %d %d %d %d", box.x1, box.y1,
+                 box.x2, box.y2));
+          rdpup_send_area(&id, box.x1, box.y1, box.x2 - box.x1,
+                          box.y2 - box.y1);
+        }
+        rdpup_set_opcode(GXcopy);
+        rdpup_set_hints(0, 1);
+        break;
+      case RDI_IMGLY:
+        rdpup_set_opcode(di->u.img.opcode);
+        count = REGION_NUM_RECTS(di->reg);
+        for (index = 0; index < count; index++)
+        {
+          box = REGION_RECTS(di->reg)[index];
+          LLOGLN(10, ("  RDI_IMGLY %d %d %d %d", box.x1, box.y1,
+                 box.x2, box.y2));
+          rdpup_send_area(&id, box.x1, box.y1, box.x2 - box.x1,
+                          box.y2 - box.y1);
+        }
+        rdpup_set_opcode(GXcopy);
+        break;
+      case RDI_LINE:
+        LLOGLN(10, ("  RDI_LINE"));
+        num_clips = REGION_NUM_RECTS(di->reg);
+        if (num_clips > 0)
+        {
+          rdpup_set_fgcolor(di->u.line.fg_color);
+          rdpup_set_opcode(di->u.line.opcode);
+          rdpup_set_pen(0, di->u.line.width);
+          for (clip_index = num_clips - 1; clip_index >= 0; clip_index--)
+          {
+            box = REGION_RECTS(di->reg)[clip_index];
+            rdpup_set_clip(box.x1, box.y1, box.x2 - box.x1, box.y2 - box.y1);
+            for (index = 0; index < di->u.line.nseg; index++)
+            {
+              seg = di->u.line.segs + index;
+              LLOGLN(10, ("  RDI_LINE %d %d %d %d", seg->x1, seg->y1,
+                     seg->x2, seg->y2));
+              rdpup_draw_line(seg->x1, seg->y1, seg->x2, seg->y2);
+            }
+          }
+        }
+        rdpup_reset_clip();
+        rdpup_set_opcode(GXcopy);
+        break;
+      case RDI_SCRBLT:
+        LLOGLN(10, ("  RDI_SCRBLT"));
+        break;
+    }
+    di = di->next;
+  }
+  draw_item_remove_all(pDirtyPriv);
+  rdpup_end_update();
+  pDirtyPriv->is_dirty = 0;
+  return 0;
+}