Adapted from Peter Dresche's original for Waveshare 2.8inch TFT Touch Shield Board and Mbed 6. RGB order reversed by changing reg 16 commands, spi write code adjusted as there is no reset pin but there is data command pin. Wait commands changed for new thread_sleep style, Stream class explicitly included. Library to control a QVGA TFT connected to SPI. You can use printf to print text The lib can handle different fonts, draw lines, circles, rect and bmp
GraphicsDisplay.cpp
- Committer:
- John Durrell
- Date:
- 2021-03-30
- Revision:
- 27:8360ab3c19d6
- Parent:
- 11:9bb71766cafc
File content as of revision 27:8360ab3c19d6:
/* 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(unsigned int x,unsigned int y,unsigned int w,unsigned 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; }