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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Grayscale framework
* gray_horline() 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 horizontal line from (x1, y) to (x2, y) with the current drawinfo
----------------------------------------------------------------------------
See gray_drawpixel() for details
*/
void gray_horline(int x1, int x2, int y)
{
int x;
unsigned long pattern;
void (*pixelfunc)(int x, int y, unsigned long pattern);
if ((unsigned) x1 >= (unsigned) _graybuf->width
|| (unsigned) x2 >= (unsigned) _graybuf->width
|| (unsigned) y >= (unsigned) _graybuf->height)
return;
if (x1 > x2)
{
x = x1;
x1 = x2;
x2 = x;
}
pixelfunc = _gray_pixelfuncs[_graybuf->drawmode];
pattern = (_graybuf->drawmode == GRAY_DRAW_BG) ?
_graybuf->bg_pattern : _graybuf->fg_pattern;
for (x = x1; x <= x2; x++)
pixelfunc(x, y, pattern);
}
#endif // #ifdef HAVE_LCD_BITMAP
#endif // #ifndef SIMULATOR
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