Adding bitblit functions

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1311 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 115 insertions, 0 deletions

diff --git a/nuttx/graphics/nxglib/nxglib_fillrectangle.c b/nuttx/graphics/nxglib/nxglib_fillrectangle.c
new file mode 100644
index 000000000..d8550dd7e
--- /dev/null
+++ b/nuttx/graphics/nxglib/nxglib_fillrectangle.c
@@ -0,0 +1,115 @@
+/****************************************************************************
+ * graphics/nxglib/nxglib_fillrectangle.c
+ *
+ *   Copyright (C) 2008 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 <sys/types.h>
+#include <nuttx/fb.h>
+#include <nuttx/nxglib.h>
+
+#include "nxglib_bitblit.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+#ifndef NXGLIB_SUFFIX
+#  error "NXGLIB_SUFFIX must be defined before including this header file"
+#endif
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxgl_fillrectangle*
+ *
+ * Descripton:
+ *   Fill a rectangle region in the framebuffer memory with a fixed color
+ *
+ ****************************************************************************/
+
+void nxgl_fillrectangle##NXGLIB_SUFFIX
+(
+  FAR struct fb_planeinfo_s *pinfo,
+  FAR const struct nxgl_rect_s *rect, NX_PIXEL_T color
+)
+{
+  ubyte *line;
+  unsigned int width;
+  unsigned int stride;
+  unsigned int rows;
+
+  /* Get the width of the framebuffer in bytes */
+
+  stride = pinfo->stride;
+
+  /* Get the dimensions of the rectange to fill in pixels */
+
+  width  = rect.pt2.x - rect.pt1.x;
+  rows   = rect.pt2.y - rect.pt1.y;
+
+  /* Get the address of the first byte in the first line to write */
+
+  line   = pinfo->fbmem + rect.pt1.y * stride + NX_SCALEX(rect.pt1.x);
+
+  /* Then fill the rectangle line-by-line */
+
+  while (rows--)
+    {
+      NXGL_MEMSET(line, color, width);
+      line += stride;
+    }
+}