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rockbox/apps/plugins/lib/mylcd.h
Michael Sevakis e63e84a5df Convert some more stuff to mylcd_ and support pgfx as well. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26543 a1c6a512-1295-4272-9138-f99709370657
2010-06-04 13:22:50 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (c) 2010 Michael Sevakis
*
* Helper defines for writing code for pgfx, 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 pgfx, 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.
*
* lib/playergfx.h or lib/grey.h should be included before including this
* header. For bitmap LCD's, defaults to rb->lcd_XXXX otherwise.
*/
#if defined (HAVE_LCD_CHARCELLS) && defined(__PGFX_H__)
#define MYLCD_CFG_PGFX /* using PGFX */
#define mylcd_(fn) pgfx_##fn
#define mylcd_ub_(fn) pgfx_##fn
#elif defined (HAVE_LCD_BITMAP) && (LCD_DEPTH < 8) && defined(__GREY_H__)
#define MYLCD_CFG_GREYLIB /* using greylib */
#define mylcd_(fn) grey_##fn
#define myxlcd_(fn) grey_##fn
#define mylcd_ub_(fn) grey_ub_##fn
#define myxlcd_ub_(fn) grey_ub_##fn
/* Common colors */
#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
#elif defined (HAVE_LCD_BITMAP)
#define MYLCD_CFG_RB_XLCD /* using standard (X)LCD routines */
#define mylcd_(fn) rb->lcd_##fn
#define myxlcd_(fn) xlcd_##fn
#define mylcd_ub_(fn) rb->lcd_##fn
#define myxlcd_ub_(fn) xlcd_##fn
/* Common colors */
#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
#error Configuration not supported! Did you forget to include the correct lib header?
#endif /* end LCD type selection */
/* Update functions */
#define mylcd_update mylcd_(update)
#ifdef HAVE_LCD_BITMAP
#define mylcd_update_rect mylcd_(update_rect)
#else
static inline void mylcd_update_rect(int x, int y, int w, int h)
{ (void)x; (void)y; (void)w; (void)h; pgfx_update(); }
#endif /* HAVE_LCD_BITMAP */
/* Update functions - unbuffered : special handling for these
* It is desirable to still evaluate arguments even if there will
* be no function call, just in case they have side-effects.
*/
#if defined (MYLCD_CFG_PGFX)
#define mylcd_ub_update pgfx_update
static inline void mylcd_ub_update_rect(int x, int y, int w, int h)
{ (void)x; (void)y; (void)w; (void)h; pgfx_update(); }
#elif defined (MYLCD_CFG_GREYLIB)
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; }
#else /* color or RB default */
#define mylcd_ub_update rb->lcd_update
#define mylcd_ub_update_rect rb->lcd_update_rect
#endif
/* Parameter handling */
#define mylcd_set_drawmode mylcd_(set_drawmode)
#define mylcd_get_drawmode mylcd_(get_drawmode)
#ifdef HAVE_LCD_BITMAP
#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)
#endif /* HAVE_LCD_BITMAP */
/* 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)
#ifdef HAVE_LCD_BITMAP
#define mylcd_filltriangle myxlcd_(filltriangle)
#endif /* HAVE_LCD_BITMAP */
/* Bitmaps */
#define mylcd_mono_bitmap_part mylcd_(mono_bitmap_part)
#define mylcd_mono_bitmap mylcd_(mono_bitmap)
#ifdef HAVE_LCD_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
#endif /* HAVE_LCD_BITMAP */
/* Bitmaps - unbuffered */
#ifdef HAVE_LCD_BITMAP
#define mylcd_ub_gray_bitmap_part myxlcd_ub_(gray_bitmap_part)
#define mylcd_ub_gray_bitmap myxlcd_ub_(gray_bitmap)
#endif /* HAVE_LCD_BITMAP */
/* Text */
/* lcd_putsxyofs is static'ed in the core for now on color */
#ifdef HAVE_LCD_BITMAP
#define mylcd_putsxyofs mylcd_(putsxyofs)
#define mylcd_putsxy mylcd_(putsxy)
#endif /* HAVE_LCD_BITMAP */
/* Scrolling */
#ifdef HAVE_LCD_BITMAP
#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)
#endif /* HAVE_LCD_BITMAP */
/* Scrolling - unbuffered */
#ifdef HAVE_LCD_BITMAP
#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 /* HAVE_LCD_BITMAP */
#endif /* MYLCD_H */
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