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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Grayscale framework
* gray_drawrect() function
*
* This is a generic framework to use grayscale display within Rockbox
* plugins. It obviously does not work for the player.
*
* Copyright (C) 2004 Jens Arnold
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef SIMULATOR /* not for simulator by now */
#include "plugin.h"
#ifdef HAVE_LCD_BITMAP /* and also not for the Player */
#include "gray.h"
/*---------------------------------------------------------------------------
Draw a (hollow) rectangle with the current drawinfo
----------------------------------------------------------------------------
See gray_drawpixel() for details
*/
void gray_drawrect(int x, int y, int nx, int ny)
{
int x2, y2;
if ((unsigned) x >= (unsigned) _graybuf->width
|| (unsigned) y >= (unsigned) _graybuf->height)
return;
if ((unsigned) (y + ny) >= (unsigned) _graybuf->height) /* clip bottom */
ny = _graybuf->height - y;
if ((unsigned) (x + nx) >= (unsigned) _graybuf->width) /* clip right */
nx = _graybuf->width - x;
x2 = x + nx - 1;
y2 = y + ny - 1;
gray_horline(x, x2, y);
gray_horline(x, x2, y2);
gray_verline(x, y, y2);
gray_verline(x2, y, y2);
}
#endif // #ifdef HAVE_LCD_BITMAP
#endif // #ifndef SIMULATOR
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