apps/gui/backdrop.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006 Dave Chapman
  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 #include <stdio.h>
  23 #include "config.h"
  24 #include "lcd.h"
  25 #ifdef HAVE_REMOTE_LCD
  26 #include "lcd-remote.h"
  27 #endif
  28 #include "backdrop.h"
  29
  30 #if LCD_DEPTH >= 8
  31 static fb_data main_backdrop[LCD_HEIGHT][LCD_WIDTH]  __attribute__ ((aligned (16)));
  32 static fb_data wps_backdrop[LCD_HEIGHT][LCD_WIDTH]  __attribute__ ((aligned (16)));
  33 #elif LCD_DEPTH == 2
  34 static fb_data main_backdrop[LCD_FBHEIGHT][LCD_FBWIDTH];
  35 static fb_data wps_backdrop[LCD_FBHEIGHT][LCD_FBWIDTH];
  36 #endif
  37
  38 #if defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH > 1
  39 static fb_remote_data remote_wps_backdrop[LCD_REMOTE_FBHEIGHT][LCD_REMOTE_FBWIDTH];
  40 static bool remote_wps_backdrop_valid = false;
  41 #endif
  42
  43 static bool main_backdrop_valid = false;
  44 static bool wps_backdrop_valid = false;
  45
  46 /* load a backdrop into a buffer */
  47 static bool load_backdrop(const char* filename, fb_data* backdrop_buffer)
  48 {
  49     struct bitmap bm;
  50     int ret;
  51
  52     /* load the image */
  53     bm.data=(char*)backdrop_buffer;
  54     ret = read_bmp_file(filename, &bm, sizeof(main_backdrop),
  55                         FORMAT_NATIVE | FORMAT_DITHER, NULL);
  56
  57     if ((ret > 0) && (bm.width == LCD_WIDTH) && (bm.height == LCD_HEIGHT))
  58     {
  59         return true;
  60     }
  61     else
  62     {
  63         return false;
  64     }
  65 }
  66
  67 bool load_main_backdrop(const char* filename)
  68 {
  69     main_backdrop_valid = load_backdrop(filename, &main_backdrop[0][0]);
  70     return main_backdrop_valid;
  71 }
  72
  73 bool load_wps_backdrop(const char* filename)
  74 {
  75     wps_backdrop_valid = load_backdrop(filename, &wps_backdrop[0][0]);
  76     return wps_backdrop_valid;
  77 }
  78
  79 void unload_main_backdrop(void)
  80 {
  81     main_backdrop_valid = false;
  82 }
  83
  84 void unload_wps_backdrop(void)
  85 {
  86     wps_backdrop_valid = false;
  87 }
  88
  89 void show_main_backdrop(void)
  90 {
  91     lcd_set_backdrop(main_backdrop_valid ? &main_backdrop[0][0] : NULL);
  92 }
  93
  94 void show_wps_backdrop(void)
  95 {
  96     /* if no wps backdrop, fall back to main backdrop */
  97     if(wps_backdrop_valid)
  98     {
  99         lcd_set_backdrop(&wps_backdrop[0][0]);
 100     }
 101     else
 102     {
 103         show_main_backdrop();
 104     }
 105 }
 106
 107 #if defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH > 1
 108
 109 static bool load_remote_backdrop(const char* filename, fb_remote_data* backdrop_buffer)
 110 {
 111     struct bitmap bm;
 112     int ret;
 113
 114     /* load the image */
 115     bm.data=(char*)backdrop_buffer;
 116     ret = read_bmp_file(filename, &bm, sizeof(main_backdrop),
 117                         FORMAT_NATIVE | FORMAT_DITHER | FORMAT_REMOTE, NULL);
 118
 119     if ((ret > 0) && (bm.width == LCD_REMOTE_WIDTH) && (bm.height == LCD_REMOTE_HEIGHT))
 120     {
 121         return true;
 122     }
 123     else
 124     {
 125         return false;
 126     }
 127 }
 128
 129 bool load_remote_wps_backdrop(const char* filename)
 130 {
 131     remote_wps_backdrop_valid = load_remote_backdrop(filename, &remote_wps_backdrop[0][0]);
 132     return remote_wps_backdrop_valid;
 133 }
 134
 135 void unload_remote_wps_backdrop(void)
 136 {
 137     remote_wps_backdrop_valid = false;
 138 }
 139
 140 void show_remote_wps_backdrop(void)
 141 {
 142     /* if no wps backdrop, fall back to main backdrop */
 143     if(remote_wps_backdrop_valid)
 144     {
 145         lcd_remote_set_backdrop(&remote_wps_backdrop[0][0]);
 146     }
 147     else
 148     {
 149         show_remote_main_backdrop();
 150     }
 151 }
 152
 153 void show_remote_main_backdrop(void)
 154 {
 155     lcd_remote_set_backdrop(NULL);
 156 }
 157 #endif