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/****************************************************************************
* graphics/nxglib/lcd/nxsglib_copyrectangle.c
*
* Copyright (C) 2010-2011 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 <stdint.h>
#include <assert.h>
#include <nuttx/lcd/lcd.h>
#include <nuttx/nx/nxglib.h>
#include "nxglib_bitblit.h"
#include "nxglib_copyrun.h"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxgl_copyrectangle_*bpp
*
* Descripton:
* Copy a rectangular bitmap image into the specific position in the
* framebuffer memory.
*
****************************************************************************/
void NXGL_FUNCNAME(nxgl_copyrectangle,NXGLIB_SUFFIX)
(FAR struct lcd_planeinfo_s *pinfo, FAR const struct nxgl_rect_s *dest,
FAR const void *src, FAR const struct nxgl_point_s *origin,
unsigned int srcstride)
{
FAR const uint8_t *sline;
unsigned int ncols;
unsigned int row;
unsigned int xoffset;
#if NXGLIB_BITSPERPIXEL < 8
unsigned int remainder;
#endif
/* Get the dimensions of the rectange to fill: width in pixels,
* height in rows
*/
ncols = dest->pt2.x - dest->pt1.x + 1;
/* Set up to copy the image */
xoffset = dest->pt1.x - origin->x;
sline = (const uint8_t*)src + NXGL_SCALEX(xoffset) + (dest->pt1.y - origin->y) * srcstride;
#if NXGLIB_BITSPERPIXEL < 8
remainder = NXGL_REMAINDERX(xoffset);
#endif
/* Copy the image, one row at a time */
for (row = dest->pt1.y; row <= dest->pt2.y; row++)
{
#if NXGLIB_BITSPERPIXEL < 8
/* if the source pixel is not aligned with a byte boundary, then we will
* need to copy the image data to the run buffer first.
*/
if (remainder != 0)
{
NXGL_FUNCNAME(nxgl_copyrun,NXGLIB_SUFFIX)(sline, pinfo->buffer, remainder, ncols);
(void)pinfo->putrun(row, dest->pt1.x, pinfo->buffer, ncols);
}
else
#endif
{
/* The pixel data is byte aligned. Copy the image data directly from
* the image memory.
*/
(void)pinfo->putrun(row, dest->pt1.x, sline, ncols);
}
/* Then adjust the source pointer to refer to the next line in the source
* image.
*/
sline += srcstride;
}
}
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