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/*
* GraphLCD driver library
*
* simlcd.c - SimLCD driver class
* Output goes to a file instead of lcd.
* Use SimLCD tool to view this file.
*
* This file is released under the GNU General Public License. Refer
* to the COPYING file distributed with this package.
*
* (c) 2001-2004 Carsten Siebholz <c.siebholz AT t-online.de>
*/
#include <stdio.h>
#include <syslog.h>
#include <cstring>
#include "common.h"
#include "config.h"
#include "simlcd.h"
namespace GLCD
{
cDriverSimLCD::cDriverSimLCD(cDriverConfig * config)
: config(config)
{
oldConfig = new cDriverConfig(*config);
}
cDriverSimLCD::~cDriverSimLCD()
{
delete oldConfig;
}
int cDriverSimLCD::Init()
{
width = config->width;
if (width <= 0)
width = 240;
height = config->height;
if (height <= 0)
height = 128;
for (unsigned int i = 0; i < config->options.size(); i++)
{
if (config->options[i].name == "")
{
}
}
// setup lcd array
LCD = new unsigned char *[(width + 7) / 8];
if (LCD)
{
for (int x = 0; x < (width + 7) / 8; x++)
{
LCD[x] = new unsigned char[height];
memset(LCD[x], 0, height);
}
}
*oldConfig = *config;
// clear display
Clear();
syslog(LOG_INFO, "%s: SIMLCD initialized.\n", config->name.c_str());
return 0;
}
int cDriverSimLCD::DeInit()
{
// free lcd array
if (LCD)
{
for (int x = 0; x < (width + 7) / 8; x++)
{
delete[] LCD[x];
}
delete[] LCD;
}
return 0;
}
int cDriverSimLCD::CheckSetup()
{
if (config->width != oldConfig->width ||
config->height != oldConfig->height)
{
DeInit();
Init();
return 0;
}
if (config->upsideDown != oldConfig->upsideDown ||
config->invert != oldConfig->invert)
{
oldConfig->upsideDown = config->upsideDown;
oldConfig->invert = config->invert;
return 1;
}
return 0;
}
void cDriverSimLCD::Clear()
{
for (int x = 0; x < (width + 7) / 8; x++)
memset(LCD[x], 0, height);
}
void cDriverSimLCD::Set8Pixels(int x, int y, unsigned char data)
{
if (x >= width || y >= height)
return;
if (!config->upsideDown)
{
// normal orientation
LCD[x / 8][y] = LCD[x / 8][y] | data;
}
else
{
// upside down orientation
x = width - 1 - x;
y = height - 1 - y;
LCD[x / 8][y] = LCD[x / 8][y] | ReverseBits(data);
}
}
void cDriverSimLCD::Refresh(bool refreshAll)
{
FILE * fp = NULL;
int x;
int y;
int i;
unsigned char c;
if (CheckSetup() > 0)
refreshAll = true;
fp = fopen("/tmp/simlcd.sem", "r");
if (!fp || refreshAll)
{
if (fp)
fclose(fp);
fp = fopen("/tmp/simlcd.dat", "w");
if (fp)
{
for (y = 0; y < height; y++)
{
for (x = 0; x < (width + 7) / 8; x++)
{
c = LCD[x][y] ^ (config->invert ? 0xff : 0x00);
for (i = 0; i < 8; i++)
{
if (c & 0x80)
{
fprintf(fp,"#");
}
else
{
fprintf(fp,".");
}
c = c << 1;
}
}
fprintf(fp,"\n");
}
fclose(fp);
}
fp = fopen("/tmp/simlcd.sem", "w");
fclose(fp);
}
else
{
fclose(fp);
}
}
} // end of namespace
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