2acc0ac542
later. We still need to hunt down snippets used that are not. 1324 modified files... http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
/***************************************************************************
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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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* New greyscale framework
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* Parameter handling
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*
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* This is a generic framework to display 129 shades of grey on low-depth
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* bitmap LCDs (Archos b&w, Iriver & Ipod 4-grey) within plugins.
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*
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* Copyright (C) 2008 Jens Arnold
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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#include "plugin.h"
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#include "grey.h"
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/* Set position of the top left corner of the greyscale overlay
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Note that depending on the target LCD, either x or y gets rounded
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to the nearest multiple of 4 or 8 */
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void grey_set_position(int x, int y)
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{
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#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
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_grey_info.bx = (x + 4) >> 3;
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x = 8 * _grey_info.bx;
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#else /* vertical packing or vertical interleaved */
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#if (LCD_DEPTH == 1) || (LCD_PIXELFORMAT == VERTICAL_INTERLEAVED)
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_grey_info.by = (y + 4) >> 3;
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y = 8 * _grey_info.by;
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#elif LCD_DEPTH == 2
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_grey_info.by = (y + 2) >> 2;
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y = 4 * _grey_info.by;
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#endif
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#endif /* LCD_PIXELFORMAT */
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_grey_info.x = x;
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_grey_info.y = y;
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if (_grey_info.flags & _GREY_RUNNING)
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{
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#ifdef SIMULATOR
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_grey_info.rb->sim_lcd_ex_update_rect(_grey_info.x, _grey_info.y,
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_grey_info.width,
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_grey_info.height);
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grey_deferred_lcd_update();
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#else
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_grey_info.flags |= _GREY_DEFERRED_UPDATE;
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#endif
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}
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}
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/* Set the draw mode for subsequent drawing operations */
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void grey_set_drawmode(int mode)
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{
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_grey_info.drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID);
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}
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/* Return the current draw mode */
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int grey_get_drawmode(void)
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{
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return _grey_info.drawmode;
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}
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/* Set the foreground shade for subsequent drawing operations */
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void grey_set_foreground(unsigned brightness)
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{
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_grey_info.fg_brightness = brightness;
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}
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/* Return the current foreground shade */
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unsigned grey_get_foreground(void)
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{
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return _grey_info.fg_brightness;
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}
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/* Set the background shade for subsequent drawing operations */
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void grey_set_background(unsigned brightness)
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{
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_grey_info.bg_brightness = brightness;
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}
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/* Return the current background shade */
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unsigned grey_get_background(void)
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{
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return _grey_info.bg_brightness;
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}
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/* Set draw mode, foreground and background shades at once */
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void grey_set_drawinfo(int mode, unsigned fg_brightness, unsigned bg_brightness)
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{
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grey_set_drawmode(mode);
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grey_set_foreground(fg_brightness);
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grey_set_background(bg_brightness);
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}
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/* Set font for the text output routines */
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void grey_setfont(int newfont)
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{
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_grey_info.curfont = newfont;
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}
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/* Get width and height of a text when printed with the current font */
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int grey_getstringsize(const unsigned char *str, int *w, int *h)
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{
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return _grey_info.rb->font_getstringsize(str, w, h, _grey_info.curfont);
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}
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