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 #include "screendump.h"
  26
  27 SDL_Surface *remote_surface;
  28
  29 SDL_Color remote_bl_color_dark    = {RED_CMP(LCD_REMOTE_BL_DARKCOLOR),
  30                                      GREEN_CMP(LCD_REMOTE_BL_DARKCOLOR),
  31                                      BLUE_CMP(LCD_REMOTE_BL_DARKCOLOR), 0};
  32 SDL_Color remote_bl_color_bright  = {RED_CMP(LCD_REMOTE_BL_BRIGHTCOLOR),
  33                                      GREEN_CMP(LCD_REMOTE_BL_BRIGHTCOLOR),
  34                                      BLUE_CMP(LCD_REMOTE_BL_BRIGHTCOLOR), 0};
  35 SDL_Color remote_color_dark    = {RED_CMP(LCD_REMOTE_DARKCOLOR),
  36                                   GREEN_CMP(LCD_REMOTE_DARKCOLOR),
  37                                   BLUE_CMP(LCD_REMOTE_DARKCOLOR), 0};
  38 SDL_Color remote_color_bright  = {RED_CMP(LCD_REMOTE_BRIGHTCOLOR),
  39                                   GREEN_CMP(LCD_REMOTE_BRIGHTCOLOR),
  40                                   BLUE_CMP(LCD_REMOTE_BRIGHTCOLOR), 0};
  41
  42 #define NUM_SHADES  129
  43
  44 #if LCD_REMOTE_DEPTH == 2
  45 /* Only defined for positive, non-split LCD for now */
  46 static const unsigned char colorindex[4] = {128, 85, 43, 0};
  47 #endif
  48
  49 static unsigned long get_lcd_remote_pixel(int x, int y)
  50 {
  51 #if LCD_REMOTE_DEPTH == 1
  52     return lcd_remote_framebuffer[y/8][x] & (1 << (y & 7)) ? 0 : (NUM_SHADES-1);
  53 #elif LCD_REMOTE_DEPTH == 2
  54 #if LCD_REMOTE_PIXELFORMAT == VERTICAL_INTERLEAVED
  55     unsigned bits = (lcd_remote_framebuffer[y/8][x] >> (y & 7)) & 0x0101;
  56     return colorindex[(bits | (bits >> 7)) & 3];
  57 #endif
  58 #endif
  59 }
  60
  61 void lcd_remote_update (void)
  62 {
  63     lcd_remote_update_rect(0, 0, LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT);
  64 }
  65
  66 void lcd_remote_update_rect(int x_start, int y_start, int width, int height)
  67 {
  68     sdl_update_rect(remote_surface, x_start, y_start, width, height,
  69         LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT, get_lcd_remote_pixel);
  70     sdl_gui_update(remote_surface, x_start, y_start, width, height,
  71         LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT, background ? UI_REMOTE_POSX : 0,
  72         background ? UI_REMOTE_POSY : LCD_HEIGHT);
  73 }
  74
  75 void sim_remote_backlight(int value)
  76 {
  77     if (value > 0) {
  78         sdl_set_gradient(remote_surface, &remote_bl_color_dark,
  79                          &remote_bl_color_bright, 0, NUM_SHADES);
  80     } else {
  81         sdl_set_gradient(remote_surface, &remote_color_dark,
  82                          &remote_color_bright, 0, NUM_SHADES);
  83     }
  84
  85     sdl_gui_update(remote_surface, 0, 0, LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT,
  86                    LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT,
  87                    background ? UI_REMOTE_POSX : 0,
  88                    background? UI_REMOTE_POSY : LCD_HEIGHT);
  89 }
  90
  91 /* initialise simulator lcd remote driver */
  92 void sim_lcd_remote_init(void)
  93 {
  94     remote_surface = SDL_CreateRGBSurface(SDL_SWSURFACE,
  95                                           LCD_REMOTE_WIDTH * display_zoom,
  96                                           LCD_REMOTE_HEIGHT * display_zoom,
  97                                           8, 0, 0, 0, 0);
  98
  99     sdl_set_gradient(remote_surface, &remote_bl_color_dark,
 100                      &remote_bl_color_bright, 0, NUM_SHADES);
 101 }
 102