mirror of https://github.com/JorjBauer/aiie.git
79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
#include <Arduino.h>
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#include "teensy-printer.h"
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#define WIDTH (384) // width of printer, in dots
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#define NATIVEWIDTH 960 //
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#define RXPIN 57
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#define TXPIN 56
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TeensyPrinter::TeensyPrinter()
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{
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ser = new SoftwareSerial(RXPIN, TXPIN, false);
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ser->begin(19200);
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char buf[6] = { 27, '@', // init command '@'
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27, '3', 8, // ESC-3 is "set line spacing"; default 30
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0 // terminator
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};
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ser->print(buf);
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}
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TeensyPrinter::~TeensyPrinter()
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{
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delete ser;
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}
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void TeensyPrinter::update()
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{
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}
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void TeensyPrinter::addLine(uint8_t *rowOfBits)
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{
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static uint8_t linebuf[WIDTH/8]; // output data for one line of pixels
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// The rowOfBits is a set of *rows* of bits. The printer needs *columns*.
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// Convert and send as necessary.
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// Send bitmap command, followed by bitmap data, followed by linefeed?
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// ser->write(27); // set line spacing
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// ser->write('3');
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// ser->write((uint8_t)30);
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#define DC2 18
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// FIXME: is this 0-6, or 1-7? One of them is empty..
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// FIXME: also read this off of the print head size/line feed size?
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for (int yoff=1; yoff<8; yoff++) {
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memset(linebuf, 0, sizeof(linebuf)); // start clear...
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for (int i=0; i<(NATIVEWIDTH/8); i++) {
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uint8_t bv = rowOfBits[yoff*120+i];
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// Process the 8 bits in this byte
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for (int xoff=0; xoff<8; xoff++) {
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// scale X from "actual FX80" coordinates to "real printer" coordinates
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uint16_t actualX = (uint16_t)(((float)(i*8+xoff) * (float)WIDTH) / (float)NATIVEWIDTH);
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if (bv & (1 << (7-xoff))) { // if it's on in the original
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// then turn it on in our copy
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uint8_t bitNum = actualX & 0x07;
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linebuf[actualX>>3] |= (1<<(7-bitNum));
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}
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}
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}
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// Send this line to the printer
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ser->write(DC2); // send this line as a bitmap
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ser->write('*');
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ser->write(1); // FIXME: height
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ser->write(48); // FIXME: width, in bytes
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for (int i=0; i<WIDTH/8; i++) {
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ser->write(linebuf[i]);
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}
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}
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// ser->write(10); // linefeed @ the end
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}
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void TeensyPrinter::moveDownPixels(uint8_t p)
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{
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}
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