Nyaaori/rockbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
rockbox/apps/screen_access.c
Thomas Martitz d9d0b4dd20 Pixel-accurate (vertical) list scrolling for touchscreen targets. 
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
2010-10-06 12:46:42 +00:00

314 lines
10 KiB
C
Raw Blame History

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Kevin Ferrare
*
* 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.
*
****************************************************************************/
#include <stdio.h>
#include "config.h"
#include <lcd.h>
#include <lcd-remote.h>
#include <scroll_engine.h>
#include <font.h>
#include <button.h>
#include <settings.h>
#include <kernel.h>
#include <icons.h>
#include "backlight.h"
#include "screen_access.h"
#include "backdrop.h"
/* some helper functions to calculate metrics on the fly */
static int screen_helper_getcharwidth(void)
{
#ifdef HAVE_LCD_BITMAP
return font_get(lcd_getfont())->maxwidth;
#else
return 1;
#endif
}
static int screen_helper_getcharheight(void)
{
#ifdef HAVE_LCD_BITMAP
return font_get(lcd_getfont())->height;
#else
return 1;
#endif
}
static int screen_helper_getnblines(void)
{
int height=screens[0].lcdheight;
#ifdef HAVE_LCD_BITMAP
if(global_settings.statusbar != STATUSBAR_OFF)
height -= STATUSBAR_HEIGHT;
#ifdef HAVE_BUTTONBAR
if(global_settings.buttonbar && screens[0].has_buttonbar)
height -= BUTTONBAR_HEIGHT;
#endif
#endif
return height / screens[0].getcharheight();
}
#if NB_SCREENS == 2
static int screen_helper_remote_getcharwidth(void)
{
#ifdef HAVE_LCD_BITMAP
return font_get(lcd_remote_getfont())->maxwidth;
#else
return 1;
#endif
}
static int screen_helper_remote_getcharheight(void)
{
#ifdef HAVE_LCD_BITMAP
return font_get(lcd_remote_getfont())->height;
#else
return 1;
#endif
}
static int screen_helper_remote_getnblines(void)
{
int height=screens[1].lcdheight;
#ifdef HAVE_LCD_BITMAP
if(global_settings.statusbar != STATUSBAR_OFF)
height -= STATUSBAR_HEIGHT;
#ifdef HAVE_BUTTONBAR
if(global_settings.buttonbar && screens[1].has_buttonbar)
height -= BUTTONBAR_HEIGHT;
#endif
#endif
return height / screens[1].getcharheight();
}
#endif
struct screen screens[NB_SCREENS] =
{
{
.screen_type=SCREEN_MAIN,
.lcdwidth=LCD_WIDTH,
.lcdheight=LCD_HEIGHT,
.depth=LCD_DEPTH,
.getnblines=&screen_helper_getnblines,
#if defined(HAVE_LCD_COLOR)
.is_color=true,
#else
.is_color=false,
#endif
#ifdef HAVE_LCD_BITMAP
.pixel_format=LCD_PIXELFORMAT,
#endif
.getcharwidth=screen_helper_getcharwidth,
.getcharheight=screen_helper_getcharheight,
#if (CONFIG_LED == LED_VIRTUAL)
.has_disk_led=false,
#elif defined(HAVE_REMOTE_LCD)
.has_disk_led=true,
#endif
.set_viewport=&lcd_set_viewport,
.getwidth=&lcd_getwidth,
.getheight=&lcd_getheight,
.getstringsize=&lcd_getstringsize,
#ifdef HAVE_LCD_BITMAP
.setfont=&lcd_setfont,
.getfont=&lcd_getfont,
.mono_bitmap=&lcd_mono_bitmap,
.mono_bitmap_part=&lcd_mono_bitmap_part,
.set_drawmode=&lcd_set_drawmode,
.bitmap=(screen_bitmap_func*)&lcd_bitmap,
.bitmap_part=(screen_bitmap_part_func*)&lcd_bitmap_part,
#if LCD_DEPTH <= 2
/* No transparency yet for grayscale and mono lcd */
.transparent_bitmap=(screen_bitmap_func*)&lcd_bitmap,
.transparent_bitmap_part=(screen_bitmap_part_func*)&lcd_bitmap_part,
#else
.transparent_bitmap=(screen_bitmap_func*)&lcd_bitmap_transparent,
.transparent_bitmap_part=(screen_bitmap_part_func*)&lcd_bitmap_transparent_part,
#endif
#if LCD_DEPTH > 1
#if defined(HAVE_LCD_COLOR) && defined(LCD_REMOTE_DEPTH) && LCD_REMOTE_DEPTH > 1
.color_to_native=&lcd_color_to_native,
#endif
.get_background=&lcd_get_background,
.get_foreground=&lcd_get_foreground,
.set_background=&lcd_set_background,
.set_foreground=&lcd_set_foreground,
#ifdef HAVE_LCD_COLOR
.set_selector_start=&lcd_set_selector_start,
.set_selector_end=&lcd_set_selector_end,
.set_selector_text=&lcd_set_selector_text,
#endif
#endif /* LCD_DEPTH > 1 */
.update_rect=&lcd_update_rect,
.update_viewport_rect=&lcd_update_viewport_rect,
.fillrect=&lcd_fillrect,
.drawrect=&lcd_drawrect,
.drawpixel=&lcd_drawpixel,
.drawline=&lcd_drawline,
.vline=&lcd_vline,
.hline=&lcd_hline,
.scroll_step=&lcd_scroll_step,
.puts_style_offset=&lcd_puts_style_offset,
.puts_style_xyoffset=&lcd_puts_style_xyoffset,
.puts_scroll_style=&lcd_puts_scroll_style,
.puts_scroll_style_offset=&lcd_puts_scroll_style_offset,
.puts_scroll_style_xyoffset=&lcd_puts_scroll_style_xyoffset,
#endif /* HAVE_LCD_BITMAP */
#ifdef HAVE_LCD_CHARCELLS
.double_height=&lcd_double_height,
.putchar=&lcd_putc,
.get_locked_pattern=&lcd_get_locked_pattern,
.define_pattern=&lcd_define_pattern,
.unlock_pattern=&lcd_unlock_pattern,
.icon=&lcd_icon,
#endif /* HAVE_LCD_CHARCELLS */
.putsxy=&lcd_putsxy,
.puts=&lcd_puts,
.putsf=&lcd_putsf,
.puts_offset=&lcd_puts_offset,
.puts_scroll=&lcd_puts_scroll,
.puts_scroll_offset=&lcd_puts_scroll_offset,
.scroll_speed=&lcd_scroll_speed,
.scroll_delay=&lcd_scroll_delay,
.stop_scroll=&lcd_stop_scroll,
.clear_display=&lcd_clear_display,
.clear_viewport=&lcd_clear_viewport,
.scroll_stop=&lcd_scroll_stop,
.scroll_stop_line=&lcd_scroll_stop_line,
.update=&lcd_update,
.update_viewport=&lcd_update_viewport,
.backlight_on=&backlight_on,
.backlight_off=&backlight_off,
.is_backlight_on=&is_backlight_on,
.backlight_set_timeout=&backlight_set_timeout,
#if LCD_DEPTH > 1
.backdrop_load=&backdrop_load,
.backdrop_show=&backdrop_show,
#endif
#ifdef HAVE_BUTTONBAR
.has_buttonbar=false,
#endif
},
#if NB_SCREENS == 2
{
.screen_type=SCREEN_REMOTE,
.lcdwidth=LCD_REMOTE_WIDTH,
.lcdheight=LCD_REMOTE_HEIGHT,
.depth=LCD_REMOTE_DEPTH,
.getnblines=&screen_helper_remote_getnblines,
.is_color=false,/* No color remotes yet */
.pixel_format=LCD_REMOTE_PIXELFORMAT,
.getcharwidth=screen_helper_remote_getcharwidth,
.getcharheight=screen_helper_remote_getcharheight,
.has_disk_led=false,
.set_viewport=&lcd_remote_set_viewport,
.getwidth=&lcd_remote_getwidth,
.getheight=&lcd_remote_getheight,
.getstringsize=&lcd_remote_getstringsize,
#if 1 /* all remote LCDs are bitmapped so far */
.setfont=&lcd_remote_setfont,
.getfont=&lcd_remote_getfont,
.mono_bitmap=&lcd_remote_mono_bitmap,
.mono_bitmap_part=&lcd_remote_mono_bitmap_part,
.bitmap=(screen_bitmap_func*)&lcd_remote_bitmap,
.bitmap_part=(screen_bitmap_part_func*)&lcd_remote_bitmap_part,
.set_drawmode=&lcd_remote_set_drawmode,
#if LCD_REMOTE_DEPTH <= 2
/* No transparency yet for grayscale and mono lcd */
.transparent_bitmap=(screen_bitmap_func*)&lcd_remote_bitmap,
.transparent_bitmap_part=(screen_bitmap_part_func*)&lcd_remote_bitmap_part,
/* No colour remotes yet */
#endif
#if LCD_REMOTE_DEPTH > 1
#if defined(HAVE_LCD_COLOR)
.color_to_native=&lcd_remote_color_to_native,
#endif
.get_background=&lcd_remote_get_background,
.get_foreground=&lcd_remote_get_foreground,
.set_background=&lcd_remote_set_background,
.set_foreground=&lcd_remote_set_foreground,
#endif /* LCD_REMOTE_DEPTH > 1 */
.update_rect=&lcd_remote_update_rect,
.update_viewport_rect=&lcd_remote_update_viewport_rect,
.fillrect=&lcd_remote_fillrect,
.drawrect=&lcd_remote_drawrect,
.drawpixel=&lcd_remote_drawpixel,
.drawline=&lcd_remote_drawline,
.vline=&lcd_remote_vline,
.hline=&lcd_remote_hline,
.scroll_step=&lcd_remote_scroll_step,
.puts_style_offset=&lcd_remote_puts_style_offset,
.puts_style_xyoffset=&lcd_remote_puts_style_xyoffset,
.puts_scroll_style=&lcd_remote_puts_scroll_style,
.puts_scroll_style_offset=&lcd_remote_puts_scroll_style_offset,
.puts_scroll_style_xyoffset=&lcd_remote_puts_scroll_style_xyoffset,
#endif /* 1 */
#if 0 /* no charcell remote LCDs so far */
.double_height=&lcd_remote_double_height,
.putc=&lcd_remote_putc,
.get_locked_pattern=&lcd_remote_get_locked_pattern,
.define_pattern=&lcd_remote_define_pattern,
.icon=&lcd_remote_icon,
#endif /* 0 */
.putsxy=&lcd_remote_putsxy,
.puts=&lcd_remote_puts,
.putsf=&lcd_remote_putsf,
.puts_offset=&lcd_remote_puts_offset,
.puts_scroll=&lcd_remote_puts_scroll,
.puts_scroll_offset=&lcd_remote_puts_scroll_offset,
.scroll_speed=&lcd_remote_scroll_speed,
.scroll_delay=&lcd_remote_scroll_delay,
.stop_scroll=&lcd_remote_stop_scroll,
.clear_display=&lcd_remote_clear_display,
.clear_viewport=&lcd_remote_clear_viewport,
.scroll_stop=&lcd_remote_scroll_stop,
.scroll_stop_line=&lcd_remote_scroll_stop_line,
.update=&lcd_remote_update,
.update_viewport=&lcd_remote_update_viewport,
.backlight_on=&remote_backlight_on,
.backlight_off=&remote_backlight_off,
.is_backlight_on=&is_remote_backlight_on,
.backlight_set_timeout=&remote_backlight_set_timeout,
#if LCD_DEPTH > 1
.backdrop_load=&remote_backdrop_load,
.backdrop_show=&remote_backdrop_show,
#endif
#ifdef HAVE_BUTTONBAR
.has_buttonbar=false,
#endif
}
#endif /* HAVE_REMOTE_LCD */
};
#ifdef HAVE_LCD_BITMAP
void screen_clear_area(struct screen * display, int xstart, int ystart,
int width, int height)
{
display->set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
display->fillrect(xstart, ystart, width, height);
display->set_drawmode(DRMODE_SOLID);
}
#endif
Reference in a new issue View git blame Copy permalink