1 files changed, 131 insertions, 0 deletions
diff --git a/nuttx/graphics/nxglib/lcd/nxglib_moverectangle.c b/nuttx/graphics/nxglib/lcd/nxglib_moverectangle.c
new file mode 100644
index 000000000..f82187ae3
--- /dev/null
+++ b/nuttx/graphics/nxglib/lcd/nxglib_moverectangle.c
@@ -0,0 +1,131 @@
+/****************************************************************************
+ * graphics/nxglib/lcd/nxglib_moverectangle.c
+ *
+ *   Copyright (C) 2010-2011 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 <stdint.h>
+
+#include <nuttx/lcd/lcd.h>
+#include <nuttx/nx/nxglib.h>
+
+#include "nxglib_bitblit.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxgl_moverectangle_*bpp
+ *
+ * Descripton:
+ *   Move a rectangular region from location to another in the
+ *   LCD memory.  The source is expressed as a rectangle; the
+ *   destination position is expressed as a point corresponding to the
+ *   translation of the upper, left-hand corner.
+ *
+ ****************************************************************************/
+
+void NXGL_FUNCNAME(nxgl_moverectangle,NXGLIB_SUFFIX)
+(FAR struct lcd_planeinfo_s *pinfo, FAR const struct nxgl_rect_s *rect,
+ FAR struct nxgl_point_s *offset)
+{
+  unsigned int ncols;
+  unsigned int srcrow;
+  unsigned int destrow;
+
+  /* Get the width of the rectange to move in pixels. */
+
+  ncols = rect->pt2.x - rect->pt1.x + 1;
+
+  /* Case 1:  The destination position (offset) is above the displayed
+   * position (rect)
+   */
+
+  if (offset->y < rect->pt1.y)
+    {
+      /* Copy the rectangle from top down */
+
+      for (srcrow = rect->pt1.y, destrow = offset->y;
+           srcrow <= rect->pt2.y;
+           srcrow++, destrow++)
+        {
+          (void)pinfo->getrun(srcrow, rect->pt1.x, pinfo->buffer, ncols);
+          (void)pinfo->putrun(destrow, offset->x, pinfo->buffer, ncols);
+        }
+    }
+
+  /* Case 2: The destination position (offset) is below the displayed
+   * position (rect)
+   */
+
+  else
+    {
+      unsigned int dy = rect->pt2.y - rect->pt1.y;
+
+      /* Copy the rectangle from the bottom up */
+
+      for (srcrow = rect->pt2.y, destrow = offset->y + dy;
+           srcrow >= rect->pt1.y;
+           srcrow--, destrow--)
+        {
+          (void)pinfo->getrun(srcrow, rect->pt1.x, pinfo->buffer, ncols);
+          (void)pinfo->putrun(destrow, offset->x, pinfo->buffer, ncols);
+        }
+    }
+}