apps/screen_access.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 by Kevin Ferrare
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #ifndef _SCREEN_ACCESS_H_
  23 #define _SCREEN_ACCESS_H_
  24
  25 #include "lcd.h"
  26 #include "buttonbar.h"
  27 #include "backdrop.h"
  28
  29 #if defined(HAVE_REMOTE_LCD) && !defined (ROCKBOX_HAS_LOGF)
  30 #define NB_SCREENS 2
  31 #else
  32 #define NB_SCREENS 1
  33 #endif
  34
  35 #if NB_SCREENS == 1
  36 #define FOR_NB_SCREENS(i) i = 0;
  37 #else
  38 #define FOR_NB_SCREENS(i) for(i = 0; i < NB_SCREENS; i++)
  39 #endif
  40
  41 #ifdef HAVE_LCD_CHARCELLS
  42 #define MAX_LINES_ON_SCREEN 2
  43 #endif
  44
  45 typedef void screen_bitmap_part_func(const void *src, int src_x, int src_y,
  46                               int stride, int x, int y, int width, int height);
  47 typedef void screen_bitmap_func(const void *src, int x, int y, int width,
  48                               int height);
  49
  50 /* if this struct is changed the plugin api may break so bump the api
  51    versions in plugin.h */
  52 struct screen
  53 {
  54     enum screen_type screen_type;
  55     int lcdwidth, lcdheight;
  56     int depth;
  57     int (*getnblines)(void);
  58 #ifdef HAVE_LCD_BITMAP
  59     int pixel_format;
  60 #endif
  61     int (*getcharwidth)(void);
  62     int (*getcharheight)(void);
  63     bool is_color;
  64 #if (CONFIG_LED == LED_VIRTUAL) || defined(HAVE_REMOTE_LCD)
  65     bool has_disk_led;
  66 #endif
  67 #ifdef HAVE_BUTTONBAR
  68     bool has_buttonbar;
  69 #endif
  70     void (*set_viewport)(struct viewport* vp);
  71     int (*getwidth)(void);
  72     int (*getheight)(void);
  73     int (*getstringsize)(const unsigned char *str, int *w, int *h);
  74 #if defined(HAVE_LCD_BITMAP) || defined(HAVE_REMOTE_LCD) /* always bitmap */
  75     void (*setfont)(int newfont);
  76     int (*getfont)(void);
  77
  78     void (*scroll_step)(int pixels);
  79     void (*puts_style_offset)(int x, int y, const unsigned char *str,
  80                               int style, int offset);
  81     void (*puts_scroll_style)(int x, int y, const unsigned char *string,
  82                                  int style);
  83     void (*puts_scroll_style_offset)(int x, int y, const unsigned char *string,
  84                                      int style, int offset);
  85     void (*mono_bitmap)(const unsigned char *src,
  86                         int x, int y, int width, int height);
  87     void (*mono_bitmap_part)(const unsigned char *src, int src_x, int src_y,
  88                           int stride, int x, int y, int width, int height);
  89     void (*bitmap)(const void *src,
  90                    int x, int y, int width, int height);
  91     void (*bitmap_part)(const void *src, int src_x, int src_y,
  92                           int stride, int x, int y, int width, int height);
  93     void (*transparent_bitmap)(const void *src,
  94                                int x, int y, int width, int height);
  95     void (*transparent_bitmap_part)(const void *src, int src_x, int src_y,
  96                                     int stride, int x, int y, int width, int height);
  97     void (*set_drawmode)(int mode);
  98 #if defined(HAVE_LCD_COLOR) && defined(LCD_REMOTE_DEPTH) && LCD_REMOTE_DEPTH > 1
  99     unsigned (*color_to_native)(unsigned color);
 100 #endif
 101 #if (LCD_DEPTH > 1) || (defined(LCD_REMOTE_DEPTH) && (LCD_REMOTE_DEPTH > 1))
 102     unsigned (*get_background)(void);
 103     unsigned (*get_foreground)(void);
 104     void (*set_background)(unsigned background);
 105     void (*set_foreground)(unsigned foreground);
 106 #endif /* (LCD_DEPTH > 1) || (LCD_REMOTE_DEPTH > 1) */
 107 #if defined(HAVE_LCD_COLOR)
 108     void (*set_selector_start)(unsigned selector);
 109     void (*set_selector_end)(unsigned selector);
 110     void (*set_selector_text)(unsigned selector_text);
 111 #endif
 112     void (*update_rect)(int x, int y, int width, int height);
 113     void (*update_viewport_rect)(int x, int y, int width, int height);
 114     void (*fillrect)(int x, int y, int width, int height);
 115     void (*drawrect)(int x, int y, int width, int height);
 116     void (*drawpixel)(int x, int y);
 117     void (*drawline)(int x1, int y1, int x2, int y2);
 118     void (*vline)(int x, int y1, int y2);
 119     void (*hline)(int x1, int x2, int y);
 120 #endif /* HAVE_LCD_BITMAP || HAVE_REMOTE_LCD */
 121
 122 #ifdef HAVE_LCD_CHARCELLS  /* no charcell remote LCDs so far */
 123     void (*double_height)(bool on);
 124     /* name it putchar, not putc because putc is a c library function */
 125     void (*putchar)(int x, int y, unsigned long ucs);
 126     void (*icon)(int icon, bool enable);
 127     unsigned long (*get_locked_pattern)(void);
 128     void (*define_pattern)(unsigned long ucs, const char *pattern);
 129     void (*unlock_pattern)(unsigned long ucs);
 130 #endif
 131     void (*putsxy)(int x, int y, const unsigned char *str);
 132     void (*puts)(int x, int y, const unsigned char *str);
 133     void (*putsf)(int x, int y, const unsigned char *str, ...);
 134     void (*puts_offset)(int x, int y, const unsigned char *str, int offset);
 135     void (*puts_scroll)(int x, int y, const unsigned char *string);
 136     void (*puts_scroll_offset)(int x, int y, const unsigned char *string,
 137                                  int offset);
 138     void (*scroll_speed)(int speed);
 139     void (*scroll_delay)(int ms);
 140     void (*stop_scroll)(void);
 141     void (*clear_display)(void);
 142     void (*clear_viewport)(void);
 143     void (*scroll_stop)(const struct viewport* vp);
 144     void (*scroll_stop_line)(const struct viewport* vp, int y);
 145     void (*update)(void);
 146     void (*update_viewport)(void);
 147     void (*backlight_on)(void);
 148     void (*backlight_off)(void);
 149     bool (*is_backlight_on)(bool ignore_always_off);
 150     void (*backlight_set_timeout)(int index);
 151 #if LCD_DEPTH > 1
 152     bool (*backdrop_load)(const char *filename, char* backdrop_buffer);
 153     void (*backdrop_show)(char* backdrop_buffer);
 154 #endif
 155 };
 156
 157 #if defined(HAVE_LCD_BITMAP) || defined(HAVE_REMOTE_LCD)
 158 /*
 159  * Clear only a given area of the screen
 160  * - screen : the screen structure
 161  * - xstart, ystart : where the area starts
 162  * - width, height : size of the area
 163  */
 164 void screen_clear_area(struct screen * display, int xstart, int ystart,
 165                        int width, int height);
 166 #endif
 167
 168 /*
 169  * exported screens array that should be used
 170  * by each app that wants to write to access display
 171  */
 172 extern struct screen screens[NB_SCREENS];
 173
 174 #endif /*_SCREEN_ACCESS_H_*/