66 lines
2.1 KiB
C
66 lines
2.1 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_horline() 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 horizontal line from (x1, y) to (x2, y) 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_horline(int x1, int x2, int y)
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{
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int x;
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unsigned long pattern;
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void (*pixelfunc)(int x, int y, unsigned long pattern);
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if ((unsigned) x1 >= (unsigned) _graybuf->width
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|| (unsigned) x2 >= (unsigned) _graybuf->width
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|| (unsigned) y >= (unsigned) _graybuf->height)
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return;
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if (x1 > x2)
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{
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x = x1;
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x1 = x2;
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x2 = x;
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}
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pixelfunc = _gray_pixelfuncs[_graybuf->drawmode];
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pattern = (_graybuf->drawmode == GRAY_DRAW_BG) ?
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_graybuf->bg_pattern : _graybuf->fg_pattern;
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for (x = x1; x <= x2; x++)
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pixelfunc(x, y, pattern);
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}
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#endif // #ifdef HAVE_LCD_BITMAP
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#endif // #ifndef SIMULATOR
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