Leigh Brooks / EaEpaper_EM027BS013

Driver to control the EM027BS013 board from Embedded Artists

Dependencies:   EM027BS013

EM027BS013 Simple Driver

This library provides an easy way to write data to the EM027BS013 display, by providing interfaces to common C functions and methods. The library was originally written by Peter Drescher, who created the "EaEpaper" library for the EM027AS012 display (available here, but adapted to use the newer display type and driver (available here), as the existing display is now discontinued.

Big thanks go to the team from Pervasive Displays and Electronic Artists for producing such a nice display, and to Peter for providing the initial interface used in this driver.

GraphicsDisplay.cpp

Committer:
Leigh_LbR
Date:
2016-05-19
Revision:
1:46dfef41919b
Parent:
0:e36f1973a674

File content as of revision 1:46dfef41919b:

/* mbed GraphicsDisplay Display Library Base Class
 * Copyright (c) 2007-2009 sford
 * Released under the MIT License: http://mbed.org/license/mit
 */
 
#include "GraphicsDisplay.h"

const unsigned char FONT8x8[97][8] = {
0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00, // columns, rows, num_bytes_per_char
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // space 0x20
0x30,0x78,0x78,0x30,0x30,0x00,0x30,0x00, // !
0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00, // "
0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00, // #
0x18,0x3E,0x60,0x3C,0x06,0x7C,0x18,0x00, // $
0x00,0x63,0x66,0x0C,0x18,0x33,0x63,0x00, // %
0x1C,0x36,0x1C,0x3B,0x6E,0x66,0x3B,0x00, // &
0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00, // '
0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00, // (
0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00, // )
0x00,0x66,0x3C,0xFF,0x3C,0x66,0x00,0x00, // *
0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00, // +
0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x30, // ,
0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00, // -
0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00, // .
0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00, // / (forward slash)
0x3E,0x63,0x63,0x6B,0x63,0x63,0x3E,0x00, // 0 0x30
0x18,0x38,0x58,0x18,0x18,0x18,0x7E,0x00, // 1
0x3C,0x66,0x06,0x1C,0x30,0x66,0x7E,0x00, // 2
0x3C,0x66,0x06,0x1C,0x06,0x66,0x3C,0x00, // 3
0x0E,0x1E,0x36,0x66,0x7F,0x06,0x0F,0x00, // 4
0x7E,0x60,0x7C,0x06,0x06,0x66,0x3C,0x00, // 5
0x1C,0x30,0x60,0x7C,0x66,0x66,0x3C,0x00, // 6
0x7E,0x66,0x06,0x0C,0x18,0x18,0x18,0x00, // 7
0x3C,0x66,0x66,0x3C,0x66,0x66,0x3C,0x00, // 8
0x3C,0x66,0x66,0x3E,0x06,0x0C,0x38,0x00, // 9
0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x00, // :
0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x30, // ;
0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00, // <
0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00, // =
0x30,0x18,0x0C,0x06,0x0C,0x18,0x30,0x00, // >
0x3C,0x66,0x06,0x0C,0x18,0x00,0x18,0x00, // ?
0x3E,0x63,0x6F,0x69,0x6F,0x60,0x3E,0x00, // @ 0x40
0x18,0x3C,0x66,0x66,0x7E,0x66,0x66,0x00, // A
0x7E,0x33,0x33,0x3E,0x33,0x33,0x7E,0x00, // B
0x1E,0x33,0x60,0x60,0x60,0x33,0x1E,0x00, // C
0x7C,0x36,0x33,0x33,0x33,0x36,0x7C,0x00, // D
0x7F,0x31,0x34,0x3C,0x34,0x31,0x7F,0x00, // E
0x7F,0x31,0x34,0x3C,0x34,0x30,0x78,0x00, // F
0x1E,0x33,0x60,0x60,0x67,0x33,0x1F,0x00, // G
0x66,0x66,0x66,0x7E,0x66,0x66,0x66,0x00, // H
0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // I
0x0F,0x06,0x06,0x06,0x66,0x66,0x3C,0x00, // J
0x73,0x33,0x36,0x3C,0x36,0x33,0x73,0x00, // K
0x78,0x30,0x30,0x30,0x31,0x33,0x7F,0x00, // L
0x63,0x77,0x7F,0x7F,0x6B,0x63,0x63,0x00, // M
0x63,0x73,0x7B,0x6F,0x67,0x63,0x63,0x00, // N
0x3E,0x63,0x63,0x63,0x63,0x63,0x3E,0x00, // O
0x7E,0x33,0x33,0x3E,0x30,0x30,0x78,0x00, // P 0x50
0x3C,0x66,0x66,0x66,0x6E,0x3C,0x0E,0x00, // Q
0x7E,0x33,0x33,0x3E,0x36,0x33,0x73,0x00, // R
0x3C,0x66,0x30,0x18,0x0C,0x66,0x3C,0x00, // S
0x7E,0x5A,0x18,0x18,0x18,0x18,0x3C,0x00, // T
0x66,0x66,0x66,0x66,0x66,0x66,0x7E,0x00, // U
0x66,0x66,0x66,0x66,0x66,0x3C,0x18,0x00, // V
0x63,0x63,0x63,0x6B,0x7F,0x77,0x63,0x00, // W
0x63,0x63,0x36,0x1C,0x1C,0x36,0x63,0x00, // X
0x66,0x66,0x66,0x3C,0x18,0x18,0x3C,0x00, // Y
0x7F,0x63,0x46,0x0C,0x19,0x33,0x7F,0x00, // Z
0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00, // [
0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00, // \ (back slash)
0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00, // ]
0x08,0x1C,0x36,0x63,0x00,0x00,0x00,0x00, // ^
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF, // _
0x18,0x18,0x0C,0x00,0x00,0x00,0x00,0x00, // ` 0x60
0x00,0x00,0x3C,0x06,0x3E,0x66,0x3B,0x00, // a
0x70,0x30,0x3E,0x33,0x33,0x33,0x6E,0x00, // b
0x00,0x00,0x3C,0x66,0x60,0x66,0x3C,0x00, // c
0x0E,0x06,0x3E,0x66,0x66,0x66,0x3B,0x00, // d
0x00,0x00,0x3C,0x66,0x7E,0x60,0x3C,0x00, // e
0x1C,0x36,0x30,0x78,0x30,0x30,0x78,0x00, // f
0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x7C, // g
0x70,0x30,0x36,0x3B,0x33,0x33,0x73,0x00, // h
0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00, // i
0x06,0x00,0x06,0x06,0x06,0x66,0x66,0x3C, // j
0x70,0x30,0x33,0x36,0x3C,0x36,0x73,0x00, // k
0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // l
0x00,0x00,0x66,0x7F,0x7F,0x6B,0x63,0x00, // m
0x00,0x00,0x7C,0x66,0x66,0x66,0x66,0x00, // n
0x00,0x00,0x3C,0x66,0x66,0x66,0x3C,0x00, // o
0x00,0x00,0x6E,0x33,0x33,0x3E,0x30,0x78, // p
0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x0F, // q
0x00,0x00,0x6E,0x3B,0x33,0x30,0x78,0x00, // r
0x00,0x00,0x3E,0x60,0x3C,0x06,0x7C,0x00, // s
0x08,0x18,0x3E,0x18,0x18,0x1A,0x0C,0x00, // t
0x00,0x00,0x66,0x66,0x66,0x66,0x3B,0x00, // u
0x00,0x00,0x66,0x66,0x66,0x3C,0x18,0x00, // v
0x00,0x00,0x63,0x6B,0x7F,0x7F,0x36,0x00, // w
0x00,0x00,0x63,0x36,0x1C,0x36,0x63,0x00, // x
0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x7C, // y
0x00,0x00,0x7E,0x4C,0x18,0x32,0x7E,0x00, // z
0x0E,0x18,0x18,0x70,0x18,0x18,0x0E,0x00, // {
0x0C,0x0C,0x0C,0x00,0x0C,0x0C,0x0C,0x00, // |
0x70,0x18,0x18,0x0E,0x18,0x18,0x70,0x00, // }
0x3B,0x6E,0x00,0x00,0x00,0x00,0x00,0x00, // ~
0x1C,0x36,0x36,0x1C,0x00,0x00,0x00,0x00}; // DEL
    
GraphicsDisplay::GraphicsDisplay(const char *name):TextDisplay(name) {
    foreground(0xFFFF);
    background(0x0000);
}
    
void GraphicsDisplay::character(int column, int row, int value) { 
    blitbit(column * 8, row * 8, 8, 8, (char*)&(FONT8x8[value - 0x1F][0]));
}

void GraphicsDisplay::window(int x, int y, int w, int h) {
    // current pixel location
    _x = x;
    _y = y;
    // window settings
    _x1 = x;
    _x2 = x + w - 1;
    _y1 = y;
    _y2 = y + h - 1;
}
    
void GraphicsDisplay::putp(int colour) {
    // put pixel at current pixel location
    pixel(_x, _y, colour);
    // update pixel location based on window settings
    _x++;
    if(_x > _x2) {
        _x = _x1;
        _y++;
        if(_y > _y2) {
            _y = _y1;
        }
    }
}

void GraphicsDisplay::fill(int x, int y, int w, int h, int colour) { 
    window(x, y, w, h);
    for(int i=0; i<w*h; i++) {
        putp(colour);
    }
}
    
void GraphicsDisplay::cls() {
    fill(0, 0, width(), height(), _background);
}
    
void GraphicsDisplay::blit(int x, int y, int w, int h, const int *colour) { 
    window(x, y, w, h);
    for(int i=0; i<w*h; i++) {
        putp(colour[i]);
    }
}
    
void GraphicsDisplay::blitbit(int x, int y, int w, int h, const char* colour) {
    window(x, y, w, h);
    for(int i = 0; i < w*h; i++) {
        char byte = colour[i >> 3];
        int offset = i & 0x7;
        int c = ((byte << offset) & 0x80) ? _foreground : _background;
        putp(c);
    }
}
    
int GraphicsDisplay::columns() { 
    return width() / 8; 
}

int GraphicsDisplay::rows() { 
    return height() / 8; 
}