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 bool backdrop_load(const char* filename, char *backdrop_buffer)
  31 {
  32     struct bitmap bm;
  33     int ret;
  34
  35     /* load the image */
  36     bm.data = backdrop_buffer;
  37     ret = read_bmp_file(filename, &bm, LCD_BACKDROP_BYTES,
  38                         FORMAT_NATIVE | FORMAT_DITHER, NULL);
  39
  40     return ((ret > 0)
  41             && (bm.width == LCD_WIDTH) && (bm.height == LCD_HEIGHT));
  42 }
  43
  44
  45 void backdrop_show(char *backdrop_buffer)
  46 {
  47     lcd_set_backdrop((fb_data*)backdrop_buffer);
  48 }
  49
  50
  51 #if defined(HAVE_REMOTE_LCD)
  52
  53 #if LCD_REMOTE_DEPTH > 1
  54 /* api functions */
  55 bool remote_backdrop_load(const char *filename, char* backdrop_buffer)
  56 {
  57     struct bitmap bm;
  58     int ret;
  59
  60     /* load the image */
  61     bm.data = backdrop_buffer;
  62     ret = read_bmp_file(filename, &bm, REMOTE_LCD_BACKDROP_BYTES,
  63                         FORMAT_NATIVE | FORMAT_DITHER | FORMAT_REMOTE, NULL);
  64     return ((ret > 0)
  65             && (bm.width == REMOTE_LCD_WIDTH) && (bm.height == REMOTE_LCD_HEIGHT));
  66 }
  67 #else /* needs stubs */
  68
  69 bool remote_backdrop_load(const char *filename, char* backdrop_buffer)
  70 {
  71     (void)filename; (void) backdrop_buffer;
  72     return false;
  73 }
  74 void remote_backdrop_show(char* backdrop_buffer)
  75 {
  76     (void)backdrop_buffer;
  77 }
  78 #endif
  79 #endif