rockbox/uisimulator/sdl/lcd-remote.c

/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2006 Dan Everton
 *
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/

#include "uisdl.h"
#include "lcd-sdl.h"
#include "lcd-remote.h"

SDL_Surface *remote_surface;

SDL_Color remote_color_zero = {UI_REMOTE_BGCOLOR, 0};
SDL_Color remote_backlight_color_zero = {UI_REMOTE_BGCOLORLIGHT, 0};
SDL_Color remote_color_max  = {0, 0, 0, 0};

extern unsigned char lcd_remote_framebuffer[LCD_REMOTE_HEIGHT/8][LCD_REMOTE_WIDTH];

static inline Uint32 get_lcd_remote_pixel(int x, int y) {
    return ((lcd_remote_framebuffer[y/8][x] >> (y & 7)) & 1);
}

void lcd_remote_update (void)
{
    lcd_remote_update_rect(0, 0, LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT);
}

void lcd_remote_update_rect(int x_start, int y_start, int width, int height)
{
    sdl_update_rect(remote_surface, x_start, y_start, width, height,
        LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT, background ? UI_REMOTE_POSX : 0,
        (background ? UI_REMOTE_POSY : LCD_HEIGHT), get_lcd_remote_pixel);
}

void sim_remote_backlight(int value)
{
    if (value > 0) {
        sdl_set_gradient(remote_surface, &remote_backlight_color_zero, &remote_color_max, (1<<LCD_REMOTE_DEPTH));
    } else {
        sdl_set_gradient(remote_surface, &remote_color_zero, &remote_color_max, (1<<LCD_REMOTE_DEPTH));
    }
}

/* initialise simulator lcd remote driver */
void sim_lcd_remote_init(void)
{
    remote_surface = SDL_CreateRGBSurface(SDL_SWSURFACE,
        LCD_REMOTE_WIDTH * display_zoom, LCD_REMOTE_HEIGHT * display_zoom,
        8, 0, 0, 0, 0);

    sdl_set_gradient(remote_surface, &remote_color_zero, &remote_color_max,
        (1<<LCD_REMOTE_DEPTH));
}