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