1 files changed, 153 insertions, 0 deletions
diff --git a/nuttx/graphics/nxterm/nxterm_redraw.c b/nuttx/graphics/nxterm/nxterm_redraw.c
new file mode 100644
index 000000000..71e18fcce
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+++ b/nuttx/graphics/nxterm/nxterm_redraw.c
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+/****************************************************************************
+ * nuttx/graphics/nxterm/nxterm_bkgd.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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 <stdint.h>
+#include <stdbool.h>
+#include <semaphore.h>
+#include <assert.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/nx/nx.h>
+#include <nuttx/nx/nxglib.h>
+
+#include "nxterm.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxterm_redraw
+ *
+ * Description:
+ *   Re-draw a portion of the NX console.  This function should be called
+ *   from the appropriate window callback logic.
+ *
+ * Input Parameters:
+ *   handle - A handle previously returned by nx_register, nxtk_register, or
+ *     nxtool_register.
+ *   rect - The rectangle that needs to be re-drawn (in window relative
+ *          coordinates)
+ *   more - true:  More re-draw requests will follow
+ *
+ * Returned Value:
+ *   None
+ *
+ ****************************************************************************/
+
+void nxterm_redraw(NXTERM handle, FAR const struct nxgl_rect_s *rect, bool more)
+{
+  FAR struct nxterm_state_s *priv;
+  int ret;
+  int i;
+
+  DEBUGASSERT(handle && rect);
+  gvdbg("rect={(%d,%d),(%d,%d)} more=%s\n",
+        rect->pt1.x, rect->pt1.y, rect->pt2.x, rect->pt2.y,
+        more ? "true" : "false");
+
+  /* Recover our private state structure */
+
+  priv = (FAR struct nxterm_state_s *)handle;
+
+  /* Get exclusive access to the state structure */
+
+  do
+    {
+      ret = nxterm_semwait(priv);
+
+      /* Check for errors */
+
+      if (ret < 0)
+        {
+          /* The only expected error is if the wait failed because of it
+           * was interrupted by a signal.
+           */
+
+          DEBUGASSERT(errno == EINTR);
+        }
+    }
+  while (ret < 0);
+
+  /* Fill the rectangular region with the window background color */
+
+  ret = priv->ops->fill(priv, rect, priv->wndo.wcolor);
+  if (ret < 0)
+    {
+      gdbg("fill failed: %d\n", errno);
+    }
+
+  /* Then redraw each character on the display (Only the characters within
+   * the rectangle will actually be redrawn).
+   */
+
+  for (i = 0; i < priv->nchars; i++)
+    {
+      nxterm_fillchar(priv, rect, &priv->bm[i]);
+    }
+
+  (void)nxterm_sempost(priv);
+}