Add logic to set individual pixels

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4047 42af7a65-404d-4744-a932-0658087f49c3

2 files changed, 108 insertions, 4 deletions

diff --git a/nuttx/graphics/nxsu/Make.defs b/nuttx/graphics/nxsu/Make.defs
index e87f6d035..12885ebf1 100644
--- a/nuttx/graphics/nxsu/Make.defs
+++ b/nuttx/graphics/nxsu/Make.defs
@@ -1,8 +1,8 @@
 ############################################################################
 # graphics/nxsu/Make.defs
 #
-#   Copyright (C) 2008 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#   Copyright (C) 2008, 2011 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
@@ -38,7 +38,7 @@ NXAPI_CSRCS	= nx_bitmap.c nx_close.c nx_closewindow.c nx_fill.c \
 		  nx_filltrapezoid.c nx_getposition.c nx_kbdchin.c  \
 		  nx_kbdin.c nx_lower.c nx_mousein.c nx_move.c nx_open.c \
 		  nx_openwindow.c nx_raise.c nx_releasebkgd.c nx_requestbkgd.c \
-		  nx_setsize.c nx_setbgcolor.c nx_setposition.c nx_drawcircle.c \
-		  nx_drawline.c nx_fillcircle.c
+		  nx_setpixel.c nx_setsize.c nx_setbgcolor.c nx_setposition.c \
+		  nx_drawcircle.c nx_drawline.c nx_fillcircle.c
 NXSU_CSRCS	= nxsu_constructwindow.c nxsu_redrawreq.c nxsu_reportposition.c
 NX_CSRCS	= $(NXAPI_CSRCS) $(NXSU_CSRCS)
diff --git a/nuttx/graphics/nxsu/nx_setpixel.c b/nuttx/graphics/nxsu/nx_setpixel.c
new file mode 100644
index 000000000..533e3b623
--- /dev/null
+++ b/nuttx/graphics/nxsu/nx_setpixel.c
@@ -0,0 +1,104 @@
+/****************************************************************************
+ * graphics/nxsu/nx_setpixel.c
+ *
+ *   Copyright (C) 2008-2011 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 <mqueue.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/nx/nx.h>
+
+#include "nxfe.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nx_setpixel
+ *
+ * Description:
+ *  Set a single pixel in the window to the specified color.  This is simply
+ *  a degenerate case of nx_fill(), but may be optimized in some architectures.
+ *
+ * Input Parameters:
+ *   wnd  - The window structure reference
+ *   pos  - The pixel location to be set
+ *   col  - The color to use in the set
+ *
+ * Return:
+ *   None
+ *
+ ****************************************************************************/
+
+int nx_setpixel(NXWINDOW hwnd,  FAR const struct nxgl_point_s *pos,
+                nxgl_mxpixel_t color[CONFIG_NX_NPLANES])
+{
+#ifdef CONFIG_DEBUG
+  if (!hwnd || !pos || !color)
+    {
+      errno = EINVAL;
+      return ERROR;
+    }
+#endif
+
+  nxbe_setpixel((FAR struct nxbe_window_s *)hwnd, pos, color);
+  return 0;
+}