uisimulator/sdl/lcd-remote-bitmap.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006 Dan Everton
  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 "uisdl.h"
  23 #include "lcd-sdl.h"
  24 #include "lcd-remote-bitmap.h"
  25
  26 SDL_Surface *remote_surface;
  27
  28 SDL_Color remote_color_zero = {UI_REMOTE_BGCOLOR, 0};
  29 SDL_Color remote_backlight_color_zero = {UI_REMOTE_BGCOLORLIGHT, 0};
  30 SDL_Color remote_color_max  = {0, 0, 0, 0};
  31
  32 static unsigned long get_lcd_remote_pixel(int x, int y) {
  33 #if LCD_REMOTE_DEPTH == 1
  34     return (lcd_remote_framebuffer[y/8][x] >> (y & 7)) & 1;
  35 #elif LCD_REMOTE_DEPTH == 2
  36 #if LCD_REMOTE_PIXELFORMAT == VERTICAL_INTERLEAVED
  37     unsigned bits = (lcd_remote_framebuffer[y/8][x] >> (y & 7)) & 0x0101;
  38     return (bits | (bits >> 7)) & 3;
  39 #endif
  40 #endif
  41 }
  42
  43 void lcd_remote_update (void)
  44 {
  45     lcd_remote_update_rect(0, 0, LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT);
  46 }
  47
  48 void lcd_remote_update_rect(int x_start, int y_start, int width, int height)
  49 {
  50     sdl_update_rect(remote_surface, x_start, y_start, width, height,
  51         LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT, get_lcd_remote_pixel);
  52     sdl_gui_update(remote_surface, x_start, y_start, width, height,
  53         LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT, background ? UI_REMOTE_POSX : 0,
  54         background ? UI_REMOTE_POSY : LCD_HEIGHT);
  55 }
  56
  57 void sim_remote_backlight(int value)
  58 {
  59     if (value > 0) {
  60         sdl_set_gradient(remote_surface, &remote_backlight_color_zero,
  61                          &remote_color_max, 0, (1<<LCD_REMOTE_DEPTH));
  62     } else {
  63         sdl_set_gradient(remote_surface, &remote_color_zero, &remote_color_max,
  64                          0, (1<<LCD_REMOTE_DEPTH));
  65     }
  66
  67     sdl_gui_update(remote_surface, 0, 0, LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT,
  68                    LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT,
  69                    background ? UI_REMOTE_POSX : 0,
  70                    background? UI_REMOTE_POSY : LCD_HEIGHT);
  71 }
  72
  73 /* initialise simulator lcd remote driver */
  74 void sim_lcd_remote_init(void)
  75 {
  76     remote_surface = SDL_CreateRGBSurface(SDL_SWSURFACE,
  77         LCD_REMOTE_WIDTH * display_zoom, LCD_REMOTE_HEIGHT * display_zoom,
  78         8, 0, 0, 0, 0);
  79
  80     sdl_set_gradient(remote_surface, &remote_backlight_color_zero,
  81                      &remote_color_max, 0, (1<<LCD_REMOTE_DEPTH));
  82 }
  83