From bc26fe7a96d6f5e443003cb871dcb4bfba525352 Mon Sep 17 00:00:00 2001 From: Michael Sevakis Date: Fri, 4 Jun 2010 08:43:32 +0000 Subject: Add a wrapper header, mylcd.h, in the lib subdirectory, which lets plugins' code automatically call the proper functions depending if compilation is for greylib or color display, also forms proper call to grey_ and xlcd_. mylcd_ub_ call greylib unbuffered routines, regular lcd routines otherwise. Form is mylcd_, is the symbol name stripped of prefixes lcd_, grey_, or xlcd_. Convert a couple plugins I know well (easy job). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26542 a1c6a512-1295-4272-9138-f99709370657 --- apps/plugins/lib/mylcd.h | 142 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100644 apps/plugins/lib/mylcd.h (limited to 'apps/plugins/lib') diff --git a/apps/plugins/lib/mylcd.h b/apps/plugins/lib/mylcd.h new file mode 100644 index 0000000000..8b6223c30b --- /dev/null +++ b/apps/plugins/lib/mylcd.h @@ -0,0 +1,142 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (c) 2010 Michael Sevakis + * + * Helper defines for writing code for both grey and color targets. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#ifndef MYLCD_H +#define MYLCD_H + +/*** + * Most functions are, other than color depth, equivalent between grey, lcd + * and xlcd and most of the time the caller need not be concerned with which + * is actually called, making code nicer to read and maintain. + * + * Unbuffered routines revert to standard rb->lcd_XXXX funtions on color + * targets. On color, mylcd_ub_update_XXXX refer to the proper update + * functions, otherwise they are no-ops. + */ + +#ifdef HAVE_LCD_COLOR +#define mylcd_(fn) rb->lcd_##fn +#define myxlcd_(fn) xlcd_##fn +#define mylcd_ub_(fn) rb->lcd_##fn +#define myxlcd_ub_(fn) xlcd_##fn +#else +#define mylcd_(fn) grey_##fn +#define myxlcd_(fn) grey_##fn +#define mylcd_ub_(fn) grey_ub_##fn +#define myxlcd_ub_(fn) grey_ub_##fn +#endif + +/* Common colors */ +#ifdef HAVE_LCD_COLOR +#define MYLCD_BLACK LCD_BLACK +#define MYLCD_DARKGRAY LCD_DARKGRAY +#define MYLCD_LIGHTGRAY LCD_LIGHTGRAY +#define MYLCD_WHITE LCD_WHITE +#define MYLCD_DEFAULT_FG LCD_DEFAULT_FG +#define MYLCD_DEFAULT_BG LCD_DEFAULT_BG +#else +#define MYLCD_BLACK GREY_BLACK +#define MYLCD_DARKGRAY GREY_DARKGRAY +#define MYLCD_LIGHTGRAY GREY_LIGHTGRAY +#define MYLCD_WHITE GREY_WHITE +#define MYLCD_DEFAULT_FG GREY_BLACK +#define MYLCD_DEFAULT_BG GREY_WHITE +#endif /* HAVE_LCD_COLOR */ + +/* Update functions */ +#define mylcd_update mylcd_(update) +#define mylcd_update_rect mylcd_(update_rect) + +/* Update functions - unbuffered : special handling for these */ +#ifdef HAVE_LCD_COLOR +#define mylcd_ub_update() rb->lcd_update() +#define mylcd_ub_update_rect(...) rb->lcd_update_rect(__VA_ARGS__) +#else +/* Still evaluate args like functions */ +static inline void mylcd_ub_update(void) + {} +static inline void mylcd_ub_update_rect(int x, int y, int w, int h) + { (void)x; (void)y; (void)w; (void)h; } +#endif + +/* Parameter handling */ +#define mylcd_set_drawmode mylcd_(set_drawmode) +#define mylcd_get_drawmode mylcd_(get_drawmode) +#define mylcd_set_foreground mylcd_(set_foreground) +#define mylcd_get_foreground mylcd_(get_foreground) +#define mylcd_set_background mylcd_(set_background) +#define mylcd_get_background mylcd_(get_background) +#define mylcd_set_drawinfo mylcd_(set_drawinfo) +#define mylcd_setfont mylcd_(setfont) +#define mylcd_getstringsize mylcd_(getstringsize) + +/* Whole display */ +#define mylcd_clear_display mylcd_(clear_display) + +/* Whole display - unbuffered */ +#define mylcd_ub_clear_display mylcd_ub_(clear_display) + +/* Pixel */ +#define mylcd_drawpixel mylcd_(drawpixel) + +/* Lines */ +#define mylcd_drawline mylcd_(drawline) +#define mylcd_hline mylcd_(hline) +#define mylcd_vline mylcd_(vline) +#define mylcd_drawrect mylcd_(drawrect) + +/* Filled Primitives */ +#define mylcd_fillrect mylcd_(fillrect) +#define mylcd_filltriangle myxlcd_(filltriangle) + +/* Bitmaps */ +#define mylcd_mono_bitmap_part mylcd_(mono_bitmap_part) +#define mylcd_mono_bitmap mylcd_(mono_bitmap) +#define mylcd_gray_bitmap_part myxlcd_(gray_bitmap_part) +#define mylcd_gray_bitmap myxlcd_(gray_bitmap) +#if 0 /* possible, but not implemented in greylib */ +#define mylcd_color_bitmap_part myxlcd_(color_bitmap_part) +#define mylcd_color_bitmap myxlcd_(color_bitmap) +#endif + +/* Bitmaps - unbuffered */ +#define mylcd_ub_gray_bitmap_part myxlcd_ub_(gray_bitmap_part) +#define mylcd_ub_gray_bitmap myxlcd_ub_(gray_bitmap) + +/* Text */ +/* lcd_putsxyofs is static'ed in the core for now on color */ +#define mylcd_putsxyofs mylcd_(putsxyofs) +#define mylcd_putsxy mylcd_(putsxy) + +/* Scrolling */ +#define mylcd_scroll_left myxlcd_(scroll_left) +#define mylcd_scroll_right myxlcd_(scroll_right) +#define mylcd_scroll_up myxlcd_(scroll_up) +#define mylcd_scroll_down myxlcd_(scroll_down) + +/* Scrolling - unbuffered */ +#define mylcd_ub_scroll_left myxlcd_ub_(scroll_left) +#define mylcd_ub_scroll_right myxlcd_ub_(scroll_right) +#define mylcd_ub_scroll_up myxlcd_ub_(scroll_up) +#define mylcd_ub_scroll_down myxlcd_ub_(scroll_down) + +#endif /* MYLCD_H */ -- cgit v1.2.3