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