58 lines
2 KiB
C
58 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_position_display() 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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Set position of the top left corner of the grayscale overlay
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----------------------------------------------------------------------------
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x = left margin in pixels
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by = top margin in 8-pixel units
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You may set this in a way that the overlay spills across the right or
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bottom display border. In this case it will simply be clipped by the
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LCD controller. You can even set negative values, this will clip at the
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left or top border. I did not test it, but the limits may be +127 / -128
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If you use this while the grayscale overlay is running, the now-freed area
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will be restored.
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*/
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void gray_position_display(int x, int by)
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{
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_graybuf->x = x;
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_graybuf->by = by;
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if (_graybuf->flags & _GRAY_RUNNING)
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_graybuf->flags |= _GRAY_DEFERRED_UPDATE;
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}
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#endif // #ifdef HAVE_LCD_BITMAP
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#endif // #ifndef SIMULATOR
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