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  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19
  20 #include <stdio.h>
  21 #include "config.h"
  22 #include "lcd.h"
  23 #ifdef HAVE_REMOTE_LCD
  24 #include "lcd-remote.h"
  25 #endif
  26 #include "backdrop.h"
  27
  28 #if LCD_DEPTH >= 8
  29 static fb_data main_backdrop[LCD_HEIGHT][LCD_WIDTH]  __attribute__ ((aligned (16)));
  30 static fb_data wps_backdrop[LCD_HEIGHT][LCD_WIDTH]  __attribute__ ((aligned (16)));
  31 #elif LCD_DEPTH == 2
  32 static fb_data main_backdrop[LCD_FBHEIGHT][LCD_FBWIDTH];
  33 static fb_data wps_backdrop[LCD_FBHEIGHT][LCD_FBWIDTH];
  34 #endif
  35
  36 #if defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH > 1
  37 static fb_remote_data remote_wps_backdrop[LCD_REMOTE_FBHEIGHT][LCD_REMOTE_FBWIDTH];
  38 static bool remote_wps_backdrop_valid = false;
  39 #endif
  40
  41 static bool main_backdrop_valid = false;
  42 static bool wps_backdrop_valid = false;
  43
  44 /* load a backdrop into a buffer */
  45 static bool load_backdrop(const char* filename, fb_data* backdrop_buffer)
  46 {
  47     struct bitmap bm;
  48     int ret;
  49
  50     /* load the image */
  51     bm.data=(char*)backdrop_buffer;
  52     ret = read_bmp_file(filename, &bm, sizeof(main_backdrop),
  53                         FORMAT_NATIVE | FORMAT_DITHER);
  54
  55     if ((ret > 0) && (bm.width == LCD_WIDTH) && (bm.height == LCD_HEIGHT))
  56     {
  57         return true;
  58     }
  59     else
  60     {
  61         return false;
  62     }
  63 }
  64
  65 bool load_main_backdrop(const char* filename)
  66 {
  67     main_backdrop_valid = load_backdrop(filename, &main_backdrop[0][0]);
  68     return main_backdrop_valid;
  69 }
  70
  71 bool load_wps_backdrop(const char* filename)
  72 {
  73     wps_backdrop_valid = load_backdrop(filename, &wps_backdrop[0][0]);
  74     return wps_backdrop_valid;
  75 }
  76
  77 void unload_main_backdrop(void)
  78 {
  79     main_backdrop_valid = false;
  80 }
  81
  82 void unload_wps_backdrop(void)
  83 {
  84     wps_backdrop_valid = false;
  85 }
  86
  87 void show_main_backdrop(void)
  88 {
  89     lcd_set_backdrop(main_backdrop_valid ? &main_backdrop[0][0] : NULL);
  90 }
  91
  92 void show_wps_backdrop(void)
  93 {
  94     /* if no wps backdrop, fall back to main backdrop */
  95     if(wps_backdrop_valid)
  96     {
  97         lcd_set_backdrop(&wps_backdrop[0][0]);
  98     }
  99     else
 100     {
 101         show_main_backdrop();
 102     }
 103 }
 104
 105 #if defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH > 1
 106
 107 static bool load_remote_backdrop(const char* filename, fb_remote_data* backdrop_buffer)
 108 {
 109     struct bitmap bm;
 110     int ret;
 111
 112     /* load the image */
 113     bm.data=(char*)backdrop_buffer;
 114     ret = read_bmp_file(filename, &bm, sizeof(main_backdrop),
 115                         FORMAT_NATIVE | FORMAT_DITHER | FORMAT_REMOTE);
 116
 117     if ((ret > 0) && (bm.width == LCD_REMOTE_WIDTH) && (bm.height == LCD_REMOTE_HEIGHT))
 118     {
 119         return true;
 120     }
 121     else
 122     {
 123         return false;
 124     }
 125 }
 126
 127 bool load_remote_wps_backdrop(const char* filename)
 128 {
 129     remote_wps_backdrop_valid = load_remote_backdrop(filename, &remote_wps_backdrop[0][0]);
 130     return remote_wps_backdrop_valid;
 131 }
 132
 133 void unload_remote_wps_backdrop(void)
 134 {
 135     remote_wps_backdrop_valid = false;
 136 }
 137
 138 void show_remote_wps_backdrop(void)
 139 {
 140     /* if no wps backdrop, fall back to main backdrop */
 141     if(remote_wps_backdrop_valid)
 142     {
 143         lcd_remote_set_backdrop(&remote_wps_backdrop[0][0]);
 144     }
 145     else
 146     {
 147         show_remote_main_backdrop();
 148     }
 149 }
 150
 151 void show_remote_main_backdrop(void)
 152 {
 153     lcd_remote_set_backdrop(NULL);
 154 }
 155 #endif