d9d0b4dd20
Looks much smoother now as you don't scroll by whole lines anymore. Add some functions lcd driver to enable the line based scrolling engine to draw the lines with a pixel-based y-offset. This should also allow for a sensible kinetic scrolling mechanism (still a todo). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28214 a1c6a512-1295-4272-9138-f99709370657
180 lines
7.2 KiB
C
180 lines
7.2 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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* Copyright (C) 2005 by Kevin Ferrare
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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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#ifndef _SCREEN_ACCESS_H_
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#define _SCREEN_ACCESS_H_
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#include "lcd.h"
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#include "buttonbar.h"
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#include "backdrop.h"
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#if defined(HAVE_REMOTE_LCD) && !defined (ROCKBOX_HAS_LOGF)
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#define NB_SCREENS 2
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#else
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#define NB_SCREENS 1
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#endif
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#if NB_SCREENS == 1
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#define FOR_NB_SCREENS(i) i = 0;
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#else
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#define FOR_NB_SCREENS(i) for(i = 0; i < NB_SCREENS; i++)
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#endif
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#ifdef HAVE_LCD_CHARCELLS
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#define MAX_LINES_ON_SCREEN 2
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#endif
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typedef void screen_bitmap_part_func(const void *src, int src_x, int src_y,
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int stride, int x, int y, int width, int height);
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typedef void screen_bitmap_func(const void *src, int x, int y, int width,
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int height);
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/* if this struct is changed the plugin api may break so bump the api
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versions in plugin.h */
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struct screen
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{
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enum screen_type screen_type;
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int lcdwidth, lcdheight;
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int depth;
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int (*getnblines)(void);
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#ifdef HAVE_LCD_BITMAP
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int pixel_format;
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#endif
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int (*getcharwidth)(void);
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int (*getcharheight)(void);
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bool is_color;
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#if (CONFIG_LED == LED_VIRTUAL) || defined(HAVE_REMOTE_LCD)
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bool has_disk_led;
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#endif
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#ifdef HAVE_BUTTONBAR
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bool has_buttonbar;
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#endif
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void (*set_viewport)(struct viewport* vp);
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int (*getwidth)(void);
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int (*getheight)(void);
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int (*getstringsize)(const unsigned char *str, int *w, int *h);
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#if defined(HAVE_LCD_BITMAP) || defined(HAVE_REMOTE_LCD) /* always bitmap */
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void (*setfont)(int newfont);
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int (*getfont)(void);
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void (*scroll_step)(int pixels);
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void (*puts_style_offset)(int x, int y, const unsigned char *str,
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int style, int x_offset);
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void (*puts_style_xyoffset)(int x, int y, const unsigned char *str,
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int style, int x_offset, int y_offset);
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void (*puts_scroll_style)(int x, int y, const unsigned char *string,
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int style);
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void (*puts_scroll_style_offset)(int x, int y, const unsigned char *string,
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int style, int x_offset);
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void (*puts_scroll_style_xyoffset)(int x, int y, const unsigned char *string,
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int style, int x_offset, int y_offset);
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void (*mono_bitmap)(const unsigned char *src,
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int x, int y, int width, int height);
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void (*mono_bitmap_part)(const unsigned char *src, int src_x, int src_y,
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int stride, int x, int y, int width, int height);
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void (*bitmap)(const void *src,
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int x, int y, int width, int height);
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void (*bitmap_part)(const void *src, int src_x, int src_y,
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int stride, int x, int y, int width, int height);
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void (*transparent_bitmap)(const void *src,
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int x, int y, int width, int height);
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void (*transparent_bitmap_part)(const void *src, int src_x, int src_y,
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int stride, int x, int y, int width, int height);
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void (*set_drawmode)(int mode);
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#if defined(HAVE_LCD_COLOR) && defined(LCD_REMOTE_DEPTH) && LCD_REMOTE_DEPTH > 1
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unsigned (*color_to_native)(unsigned color);
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#endif
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#if (LCD_DEPTH > 1) || (defined(LCD_REMOTE_DEPTH) && (LCD_REMOTE_DEPTH > 1))
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unsigned (*get_background)(void);
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unsigned (*get_foreground)(void);
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void (*set_background)(unsigned background);
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void (*set_foreground)(unsigned foreground);
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#endif /* (LCD_DEPTH > 1) || (LCD_REMOTE_DEPTH > 1) */
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#if defined(HAVE_LCD_COLOR)
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void (*set_selector_start)(unsigned selector);
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void (*set_selector_end)(unsigned selector);
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void (*set_selector_text)(unsigned selector_text);
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#endif
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void (*update_rect)(int x, int y, int width, int height);
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void (*update_viewport_rect)(int x, int y, int width, int height);
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void (*fillrect)(int x, int y, int width, int height);
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void (*drawrect)(int x, int y, int width, int height);
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void (*drawpixel)(int x, int y);
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void (*drawline)(int x1, int y1, int x2, int y2);
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void (*vline)(int x, int y1, int y2);
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void (*hline)(int x1, int x2, int y);
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#endif /* HAVE_LCD_BITMAP || HAVE_REMOTE_LCD */
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#ifdef HAVE_LCD_CHARCELLS /* no charcell remote LCDs so far */
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void (*double_height)(bool on);
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/* name it putchar, not putc because putc is a c library function */
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void (*putchar)(int x, int y, unsigned long ucs);
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void (*icon)(int icon, bool enable);
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unsigned long (*get_locked_pattern)(void);
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void (*define_pattern)(unsigned long ucs, const char *pattern);
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void (*unlock_pattern)(unsigned long ucs);
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#endif
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void (*putsxy)(int x, int y, const unsigned char *str);
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void (*puts)(int x, int y, const unsigned char *str);
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void (*putsf)(int x, int y, const unsigned char *str, ...);
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void (*puts_offset)(int x, int y, const unsigned char *str, int offset);
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void (*puts_scroll)(int x, int y, const unsigned char *string);
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void (*puts_scroll_offset)(int x, int y, const unsigned char *string,
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int x_offset);
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void (*puts_scroll_xyoffset)(int x, int y, const unsigned char *string,
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int x_offset, int y_offset);
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void (*scroll_speed)(int speed);
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void (*scroll_delay)(int ms);
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void (*stop_scroll)(void);
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void (*clear_display)(void);
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void (*clear_viewport)(void);
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void (*scroll_stop)(const struct viewport* vp);
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void (*scroll_stop_line)(const struct viewport* vp, int y);
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void (*update)(void);
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void (*update_viewport)(void);
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void (*backlight_on)(void);
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void (*backlight_off)(void);
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bool (*is_backlight_on)(bool ignore_always_off);
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void (*backlight_set_timeout)(int index);
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#if LCD_DEPTH > 1
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bool (*backdrop_load)(const char *filename, char* backdrop_buffer);
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void (*backdrop_show)(char* backdrop_buffer);
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#endif
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};
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#if defined(HAVE_LCD_BITMAP) || defined(HAVE_REMOTE_LCD)
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/*
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* Clear only a given area of the screen
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* - screen : the screen structure
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* - xstart, ystart : where the area starts
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* - width, height : size of the area
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*/
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void screen_clear_area(struct screen * display, int xstart, int ystart,
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int width, int height);
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#endif
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/*
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* exported screens array that should be used
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* by each app that wants to write to access display
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*/
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extern struct screen screens[NB_SCREENS];
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#endif /*_SCREEN_ACCESS_H_*/
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