81 lines
2.8 KiB
C
81 lines
2.8 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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*
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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 __GRAY_H__
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#define __GRAY_H__
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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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/* 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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/* every framework needs such a function, and it has to be called as
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* the very first one */
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void gray_init(struct plugin_api* newrb);
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/* general functions */
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int gray_init_buffer(unsigned char *gbuf, int gbuf_size, int width,
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int bheight, int depth);
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void gray_release_buffer(void);
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void gray_position_display(int x, int by);
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void gray_show_display(bool enable);
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/* functions affecting the whole display */
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void gray_clear_display(void);
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void gray_black_display(void);
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void gray_deferred_update(void);
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/* scrolling functions */
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void gray_scroll_left(int count, bool black_border);
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void gray_scroll_right(int count, bool black_border);
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void gray_scroll_up8(bool black_border);
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void gray_scroll_down8(bool black_border);
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void gray_scroll_up(int count, bool black_border);
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void gray_scroll_down(int count, bool black_border);
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/* pixel functions */
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void gray_drawpixel(int x, int y, int brightness);
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void gray_invertpixel(int x, int y);
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/* line functions */
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void gray_drawline(int x1, int y1, int x2, int y2, int brightness);
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void gray_invertline(int x1, int y1, int x2, int y2);
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/* rectangle functions */
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void gray_drawrect(int x1, int y1, int x2, int y2, int brightness);
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void gray_fillrect(int x1, int y1, int x2, int y2, int brightness);
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void gray_invertrect(int x1, int y1, int x2, int y2);
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/* bitmap functions */
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void gray_drawgraymap(unsigned char *src, int x, int y, int nx, int ny,
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int stride);
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void gray_drawbitmap(unsigned char *src, int x, int y, int nx, int ny,
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int stride, bool draw_bg, int fg_brightness,
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int bg_brightness);
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#endif /* HAVE_LCD_BITMAP */
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#endif /* SIMULATOR */
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#endif /* __GRAY_H__ */
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