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-rw-r--r--apps/plugins/lib/gray_clear_display.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/apps/plugins/lib/gray_clear_display.c b/apps/plugins/lib/gray_clear_display.c
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+++ b/apps/plugins/lib/gray_clear_display.c
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+/***************************************************************************
+* __________ __ ___.
+* Open \______ \ ____ ____ | | _\_ |__ _______ ___
+* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+* \/ \/ \/ \/ \/
+* $Id$
+*
+* Grayscale framework
+* gray_clear_display() 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"
+
+/*---------------------------------------------------------------------------
+ Clear the grayscale display (sets all pixels to white)
+ ----------------------------------------------------------------------------
+ */
+void gray_clear_display(void)
+{
+ _gray_rb->memset(_graybuf->data, 0, MULU16(_graybuf->depth,
+ _graybuf->plane_size));
+}
+
+#endif // #ifdef HAVE_LCD_BITMAP
+#endif // #ifndef SIMULATOR
+