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