nuttx/graphics/nxglib/nxglib_copyrectangle.c
patacongo 528ffcbed0 Make prototypes of rasterizers same at all resolutions
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1317 42af7a65-404d-4744-a932-0658087f49c3
2008-11-26 23:42:51 +00:00

113 lines
4.3 KiB
C

/****************************************************************************
* graphics/nxglib/nxsglib_copyrectangle.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
****************************************************************************/
/****************************************************************************
* 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 fb_planeinfo_s *pinfo, FAR const struct nxgl_rect_s *dest,
FAR const void *src, FAR const struct nxgl_point_s *origin,
unsigned int srcstride)
{
const ubyte *sptr;
ubyte *dptr;
unsigned int width;
unsigned int deststride;
unsigned int rows;
/* Get the width of the framebuffer in bytes */
deststride = pinfo->stride;
/* Get the dimensions of the rectange to fill: height in rows and width in bytes */
width = NXGL_SCALEX(dest->pt2.x - dest->pt1.x);
rows = dest->pt2.y - dest->pt1.y;
/* Then copy the image */
sptr = (const ubyte*)src + NXGL_SCALEX(dest->pt1.x - origin->x) + (dest->pt1.y - origin->y) * srcstride;
dptr = pinfo->fbmem + dest->pt1.y * deststride + NXGL_SCALEX(dest->pt1.x);
while (rows--)
{
NXGL_MEMCPY((NXGL_PIXEL_T*)dest, (NXGL_PIXEL_T*)sptr, width);
dptr += deststride;
sptr += srcstride;
}
}