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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 Dan Everton
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "debug.h"
#include "sim-ui-defines.h"
#include "system.h"
#include "button-sdl.h"
#include "lcd-sdl.h"
#include "screendump.h"
#if (CONFIG_PLATFORM & PLATFORM_MAEMO)
#include "maemo-thread.h"
#endif
SDL_Surface* lcd_surface;
#if LCD_DEPTH <= 8
#ifdef HAVE_BACKLIGHT
SDL_Color lcd_bl_color_dark = {RED_CMP(LCD_BL_DARKCOLOR),
GREEN_CMP(LCD_BL_DARKCOLOR),
BLUE_CMP(LCD_BL_DARKCOLOR), 0};
SDL_Color lcd_bl_color_bright = {RED_CMP(LCD_BL_BRIGHTCOLOR),
GREEN_CMP(LCD_BL_BRIGHTCOLOR),
BLUE_CMP(LCD_BL_BRIGHTCOLOR), 0};
#ifdef HAVE_LCD_SPLIT
SDL_Color lcd_bl_color2_dark = {RED_CMP(LCD_BL_DARKCOLOR_2),
GREEN_CMP(LCD_BL_DARKCOLOR_2),
BLUE_CMP(LCD_BL_DARKCOLOR_2), 0};
SDL_Color lcd_bl_color2_bright = {RED_CMP(LCD_BL_BRIGHTCOLOR_2),
GREEN_CMP(LCD_BL_BRIGHTCOLOR_2),
BLUE_CMP(LCD_BL_BRIGHTCOLOR_2), 0};
#endif
#endif /* HAVE_BACKLIGHT */
SDL_Color lcd_color_dark = {RED_CMP(LCD_DARKCOLOR),
GREEN_CMP(LCD_DARKCOLOR),
BLUE_CMP(LCD_DARKCOLOR), 0};
SDL_Color lcd_color_bright = {RED_CMP(LCD_BRIGHTCOLOR),
GREEN_CMP(LCD_BRIGHTCOLOR),
BLUE_CMP(LCD_BRIGHTCOLOR), 0};
#ifdef HAVE_LCD_SPLIT
SDL_Color lcd_color2_dark = {RED_CMP(LCD_DARKCOLOR_2),
GREEN_CMP(LCD_DARKCOLOR_2),
BLUE_CMP(LCD_DARKCOLOR_2), 0};
SDL_Color lcd_color2_bright = {RED_CMP(LCD_BRIGHTCOLOR_2),
GREEN_CMP(LCD_BRIGHTCOLOR_2),
BLUE_CMP(LCD_BRIGHTCOLOR_2), 0};
#endif
#ifdef HAVE_LCD_SPLIT
#define NUM_SHADES 128
#else
#define NUM_SHADES 129
#endif
#else /* LCD_DEPTH > 8 */
#ifdef HAVE_TRANSFLECTIVE_LCD
#define BACKLIGHT_OFF_ALPHA 85 /* 1/3 brightness */
#else
#define BACKLIGHT_OFF_ALPHA 0 /* pitch black */
#endif
#endif /* LCD_DEPTH */
#if LCD_DEPTH < 8
unsigned long (*lcd_ex_getpixel)(int, int) = NULL;
#endif /* LCD_DEPTH < 8 */
#if LCD_DEPTH == 2
/* Only defined for positive, non-split LCD for now */
static const unsigned char colorindex[4] = {128, 85, 43, 0};
#endif
static unsigned long get_lcd_pixel(int x, int y)
{
#if LCD_DEPTH == 1
#ifdef HAVE_NEGATIVE_LCD
return (*FBADDR(x, y/8) & (1 << (y & 7))) ? (NUM_SHADES-1) : 0;
#else
return (*FBADDR(x, y/8) & (1 << (y & 7))) ? 0 : (NUM_SHADES-1);
#endif
#elif LCD_DEPTH == 2
#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
return colorindex[(*FBADDR(x/4, y) >> (2 * (~x & 3))) & 3];
#elif LCD_PIXELFORMAT == VERTICAL_PACKING
return colorindex[(*FBADDR(x, y/4) >> (2 * (y & 3))) & 3];
#elif LCD_PIXELFORMAT == VERTICAL_INTERLEAVED
unsigned bits = (*FBADDR(x, y/8) >> (y & 7)) & 0x0101;
return colorindex[(bits | (bits >> 7)) & 3];
#endif
#elif LCD_DEPTH == 16
#if LCD_PIXELFORMAT == RGB565SWAPPED
unsigned bits = *FBADDR(x, y);
return (bits >> 8) | (bits << 8);
#else
return *FBADDR(x, y);
#endif
#endif
}
void lcd_update(void)
{
/* update a full screen rect */
lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
}
void lcd_update_rect(int x_start, int y_start, int width, int height)
{
#if (CONFIG_PLATFORM & PLATFORM_MAEMO)
/* Don't update display if not shown */
if (!maemo_display_on)
return;
/* Don't update if we don't have the input focus */
if (!sdl_app_has_input_focus)
return;
#endif
sdl_update_rect(lcd_surface, x_start, y_start, width, height,
LCD_WIDTH, LCD_HEIGHT, get_lcd_pixel);
sdl_gui_update(lcd_surface, x_start, y_start, width,
height + LCD_SPLIT_LINES, SIM_LCD_WIDTH, SIM_LCD_HEIGHT,
background ? UI_LCD_POSX : 0, background? UI_LCD_POSY : 0);
}
#ifdef HAVE_BACKLIGHT
void sim_backlight(int value)
{
#if LCD_DEPTH <= 8
if (value > 0) {
sdl_set_gradient(lcd_surface, &lcd_bl_color_dark,
&lcd_bl_color_bright, 0, NUM_SHADES);
#ifdef HAVE_LCD_SPLIT
sdl_set_gradient(lcd_surface, &lcd_bl_color2_dark,
&lcd_bl_color2_bright, NUM_SHADES, NUM_SHADES);
#endif
} else {
sdl_set_gradient(lcd_surface, &lcd_color_dark,
&lcd_color_bright, 0, NUM_SHADES);
#ifdef HAVE_LCD_SPLIT
sdl_set_gradient(lcd_surface, &lcd_color2_dark,
&lcd_color2_bright, NUM_SHADES, NUM_SHADES);
#endif
}
#else /* LCD_DEPTH > 8 */
SDL_SetAlpha(lcd_surface, SDL_SRCALPHA, (value * 255) / 100);
#endif /* LCD_DEPTH */
sdl_gui_update(lcd_surface, 0, 0, SIM_LCD_WIDTH, SIM_LCD_HEIGHT,
SIM_LCD_WIDTH, SIM_LCD_HEIGHT,
background ? UI_LCD_POSX : 0, background? UI_LCD_POSY : 0);
}
#endif /* HAVE_BACKLIGHT */
/* initialise simulator lcd driver */
void lcd_init_device(void)
{
#if LCD_DEPTH == 16
lcd_surface = SDL_CreateRGBSurface(SDL_SWSURFACE,
SIM_LCD_WIDTH * display_zoom,
SIM_LCD_HEIGHT * display_zoom,
LCD_DEPTH, 0, 0, 0, 0);
#elif LCD_DEPTH <= 8
lcd_surface = SDL_CreateRGBSurface(SDL_SWSURFACE,
SIM_LCD_WIDTH * display_zoom,
SIM_LCD_HEIGHT * display_zoom,
8, 0, 0, 0, 0);
#ifdef HAVE_BACKLIGHT
sdl_set_gradient(lcd_surface, &lcd_bl_color_dark,
&lcd_bl_color_bright, 0, NUM_SHADES);
#ifdef HAVE_LCD_SPLIT
sdl_set_gradient(lcd_surface, &lcd_bl_color2_dark,
&lcd_bl_color2_bright, NUM_SHADES, NUM_SHADES);
#endif
#else /* !HAVE_BACKLIGHT */
sdl_set_gradient(lcd_surface, &lcd_color_dark,
&lcd_color_bright, 0, NUM_SHADES);
#ifdef HAVE_LCD_SPLIT
sdl_set_gradient(lcd_surface, &lcd_color2_dark,
&lcd_color2_bright, NUM_SHADES, NUM_SHADES);
#endif
#endif /* !HAVE_BACKLIGHT */
#endif /* LCD_DEPTH */
}
#if LCD_DEPTH < 8
void sim_lcd_ex_init(unsigned long (*getpixel)(int, int))
{
lcd_ex_getpixel = getpixel;
}
void sim_lcd_ex_update_rect(int x_start, int y_start, int width, int height)
{
if (lcd_ex_getpixel) {
sdl_update_rect(lcd_surface, x_start, y_start, width, height,
LCD_WIDTH, LCD_HEIGHT, lcd_ex_getpixel);
sdl_gui_update(lcd_surface, x_start, y_start, width,
height + LCD_SPLIT_LINES, SIM_LCD_WIDTH, SIM_LCD_HEIGHT,
background ? UI_LCD_POSX : 0,
background ? UI_LCD_POSY : 0);
}
}
#endif
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