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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Daniel Stenberg <daniel@haxx.se>
*
* 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 <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <ctype.h>
#include <time.h>
#include "screenhack.h"
/*
* Specific implementations for X11, using the generic LCD API and data.
*/
#include "lcd-x11.h"
extern unsigned char display[LCD_WIDTH][LCD_HEIGHT/8];
extern void screen_resized(int width, int height);
extern Display *dpy;
unsigned char display_copy[LCD_WIDTH][LCD_HEIGHT/8];
void lcd_update (void)
{
int x, y;
int p=0;
int bit;
XPoint points[LCD_WIDTH * LCD_HEIGHT];
int cp=0;
XPoint clearpoints[LCD_WIDTH * LCD_HEIGHT];
#if 0
screen_resized(LCD_WIDTH, LCD_HEIGHT);
for(y=0; y<LCD_HEIGHT; y+=8) {
for(x=0; x<LCD_WIDTH; x++) {
if(display[x][y/8]) {
/* one or more bits/pixels are set */
for(bit=0; bit<8; bit++) {
if(display[x][y/8]&(1<<bit)) {
points[p].x = x + MARGIN_X;
points[p].y = y+bit + MARGIN_Y;
p++; /* increase the point counter */
}
}
}
}
}
#else
for(y=0; y<LCD_HEIGHT; y+=8) {
for(x=0; x<LCD_WIDTH; x++) {
if(display[x][y/8] || display_copy[x][y/8]) {
/* one or more bits/pixels are changed */
unsigned char diff =
display[x][y/8] ^ display_copy[x][y/8];
for(bit=0; bit<8; bit++) {
if(display[x][y/8]&(1<<bit)) {
/* set a dot */
points[p].x = x + MARGIN_X;
points[p].y = y+bit + MARGIN_Y;
p++; /* increase the point counter */
}
else if(diff &(1<<bit)) {
/* clear a dot */
clearpoints[cp].x = x + MARGIN_X;
clearpoints[cp].y = y+bit + MARGIN_Y;
cp++; /* increase the point counter */
}
}
}
}
}
/* copy a huge block */
memcpy(display_copy, display, sizeof(display));
#endif
drawdots(0, &clearpoints[0], cp);
drawdots(1, &points[0], p);
/* Logf("lcd_update: Draws %d pixels, clears %d pixels", p, cp);*/
XSync(dpy,False);
}
#ifdef HAVE_LCD_CHARCELLS
/* simulation layer for charcells */
void lcd_clear_display(void)
{
sim_lcd_clear_display();
}
void lcd_puts(int x, int y, char *string)
{
char buffer[12];
strncpy(buffer, string, 11);
buffer[11]=0;
sim_lcd_puts(x, y, buffer, 0);
lcd_update();
}
#endif
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