1 files changed, 139 insertions, 0 deletions
diff --git a/nuttx/graphics/nxbe/nxbe_redraw.c b/nuttx/graphics/nxbe/nxbe_redraw.c
new file mode 100644
index 000000000..3226ccf32
--- /dev/null
+++ b/nuttx/graphics/nxbe/nxbe_redraw.c
@@ -0,0 +1,139 @@
+/****************************************************************************
+ * graphics/nxbe/nxbe_redraw.c
+ *
+ *   Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/nx/nxglib.h>
+
+#include "nxbe.h"
+#include "nxfe.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+struct nxbe_redraw_s
+{
+  struct nxbe_clipops_s cops;
+  FAR struct nxbe_window_s *wnd;
+};
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxbe_clipredraw
+ ****************************************************************************/
+
+static void nxbe_clipredraw(FAR struct nxbe_clipops_s *cops,
+                           FAR struct nxbe_plane_s *plane,
+                           FAR const struct nxgl_rect_s *rect)
+{
+  FAR struct nxbe_window_s *wnd = ((struct nxbe_redraw_s *)cops)->wnd;
+  if (wnd)
+    {
+      nxfe_redrawreq(wnd, rect);
+    }
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxbe_redraw
+ *
+ * Descripton:
+ *   Re-draw the visible portions of the rectangular region for the
+ *   specified window
+ *
+ ****************************************************************************/
+
+void nxbe_redraw(FAR struct nxbe_state_s *be,
+                 FAR struct nxbe_window_s *wnd,
+                 FAR const struct nxgl_rect_s *rect)
+{
+  struct nxbe_redraw_s info;
+  struct nxgl_rect_s remaining;
+#if CONFIG_NX_NPLANES > 1
+  int i;
+#endif
+
+  /* Clip to the limits of the window and of the background screen */
+
+  nxgl_rectintersect(&remaining, rect, &be->bkgd.bounds);
+  nxgl_rectintersect(&remaining, &remaining, &wnd->bounds);
+  if (!nxgl_nullrect(&remaining))
+    {
+      /* Now, request to re-draw any visible rectangular regions not obscured
+       * by windows above this one.
+       */
+
+      info.cops.visible  = nxbe_clipredraw;
+      info.cops.obscured = nxbe_clipnull;
+      info.wnd           = wnd;
+
+#if CONFIG_NX_NPLANES > 1
+      for (i = 0; i < be->vinfo.nplanes; i++)
+        {
+          nxbe_clipper(wnd->above, &remaining, NX_CLIPORDER_DEFAULT,
+                       &info.cops, &be->plane[i]);
+        }
+#else
+      nxbe_clipper(wnd->above, &remaining, NX_CLIPORDER_DEFAULT,
+                   &info.cops, &be->plane[0]);
+#endif
+    }
+}