1 files changed, 177 insertions, 0 deletions
diff --git a/nuttx/graphics/nxglib/fb/nxglib_fillrectangle.c b/nuttx/graphics/nxglib/fb/nxglib_fillrectangle.c
new file mode 100644
index 000000000..cb9483c98
--- /dev/null
+++ b/nuttx/graphics/nxglib/fb/nxglib_fillrectangle.c
@@ -0,0 +1,177 @@
+/****************************************************************************
+ * graphics/nxglib/fb/nxglib_fillrectangle.c
+ *
+ *   Copyright (C) 2008-2011 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/fb.h>
+#include <nuttx/nx/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_*bpp
+ *
+ * Descripton:
+ *   Fill a rectangle region in the framebuffer memory with a fixed color
+ *
+ ****************************************************************************/
+
+void NXGL_FUNCNAME(nxgl_fillrectangle,NXGLIB_SUFFIX)
+  (FAR struct fb_planeinfo_s *pinfo,
+   FAR const struct nxgl_rect_s *rect,
+   NXGL_PIXEL_T color)
+{
+  FAR uint8_t *line;
+  unsigned int width;
+  unsigned int stride;
+  int rows;
+
+#if NXGLIB_BITSPERPIXEL < 8
+  FAR uint8_t *dest;
+  uint8_t mpixel = NXGL_MULTIPIXEL(color);
+  uint8_t leadmask;
+  uint8_t tailmask;
+  uint8_t mask;
+  int lnlen;
+#endif
+
+  /* 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 + 1;
+  rows   = rect->pt2.y - rect->pt1.y + 1;
+
+  /* Get the address of the first byte in the first line to write */
+
+  line   = pinfo->fbmem + rect->pt1.y * stride + NXGL_SCALEX(rect->pt1.x);
+
+#if NXGLIB_BITSPERPIXEL < 8
+# ifdef CONFIG_NX_PACKEDMSFIRST
+
+  /* Get the mask for pixels that are ordered so that they pack from the
+   * MS byte down.
+   */
+
+  leadmask = (uint8_t)(0xff >> (8 - NXGL_REMAINDERX(rect->pt1.x)));
+  tailmask = (uint8_t)(0xff << (8 - NXGL_REMAINDERX(rect->pt2.x-1)));
+# else
+  /* Get the mask for pixels that are ordered so that they pack from the
+   * LS byte up.
+   */
+
+  leadmask = (uint8_t)(0xff << (8 - NXGL_REMAINDERX(rect->pt1.x)));
+  tailmask = (uint8_t)(0xff >> (8 - NXGL_REMAINDERX(rect->pt1.x-1)));
+# endif
+#endif
+
+  /* Then fill the rectangle line-by-line */
+
+  while (rows-- > 0)
+    {
+#if NXGLIB_BITSPERPIXEL < 8
+     /* Handle masking of the fractional initial byte */
+
+     mask  = leadmask;
+     dest  = line;
+     lnlen = width;
+
+     if (lnlen > 1 && mask)
+        {
+          dest[0] = (dest[0] & ~mask) | (mpixel & mask);
+          mask = 0xff;
+          dest++;
+          lnlen--;
+        }
+
+      /* Handle masking of the fractional final byte */
+
+      mask &= tailmask;
+      if (lnlen > 0 && mask)
+        {
+          dest[lnlen-1] = (dest[lnlen-1] & ~mask) | (mpixel & mask);
+          lnlen--;
+        }
+
+      /* Handle all of the unmasked bytes in-between */
+
+      if (lnlen > 0)
+        {
+          NXGL_MEMSET(dest, (NXGL_PIXEL_T)color, lnlen);
+        }
+#else
+      /* Draw the entire raster line */
+
+      NXGL_MEMSET(line, (NXGL_PIXEL_T)color, width);
+#endif
+      line += stride;
+    }
+}