Peter Drescher / SPI_TFT_old

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@13:d525819cb601, 2012-09-11 (annotated)

Committer:
dreschpe
Date:
Tue Sep 11 20:44:49 2012 +0000
Revision:
13:d525819cb601
Parent:
0:cccc5726bdf3 
Switch back to io mode CS. The automatic spi cs can cause problems with interrupts or RTOS.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dreschpe 0:cccc5726bdf3 1 /* mbed GraphicsDisplay Display Library Base Class
dreschpe 0:cccc5726bdf3 2 * Copyright (c) 2007-2009 sford
dreschpe 0:cccc5726bdf3 3 * Released under the MIT License: http://mbed.org/license/mit
dreschpe 0:cccc5726bdf3 4 */
dreschpe 0:cccc5726bdf3 5
dreschpe 0:cccc5726bdf3 6 #include "GraphicsDisplay.h"
dreschpe 0:cccc5726bdf3 7
dreschpe 0:cccc5726bdf3 8 const unsigned char FONT8x8[97][8] = {
dreschpe 0:cccc5726bdf3 9 0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00, // columns, rows, num_bytes_per_char
dreschpe 0:cccc5726bdf3 10 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // space 0x20
dreschpe 0:cccc5726bdf3 11 0x30,0x78,0x78,0x30,0x30,0x00,0x30,0x00, // !
dreschpe 0:cccc5726bdf3 12 0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00, // "
dreschpe 0:cccc5726bdf3 13 0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00, // #
dreschpe 0:cccc5726bdf3 14 0x18,0x3E,0x60,0x3C,0x06,0x7C,0x18,0x00, // $
dreschpe 0:cccc5726bdf3 15 0x00,0x63,0x66,0x0C,0x18,0x33,0x63,0x00, // %
dreschpe 0:cccc5726bdf3 16 0x1C,0x36,0x1C,0x3B,0x6E,0x66,0x3B,0x00, // &
dreschpe 0:cccc5726bdf3 17 0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00, // '
dreschpe 0:cccc5726bdf3 18 0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00, // (
dreschpe 0:cccc5726bdf3 19 0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00, // )
dreschpe 0:cccc5726bdf3 20 0x00,0x66,0x3C,0xFF,0x3C,0x66,0x00,0x00, // *
dreschpe 0:cccc5726bdf3 21 0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00, // +
dreschpe 0:cccc5726bdf3 22 0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x30, // ,
dreschpe 0:cccc5726bdf3 23 0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00, // -
dreschpe 0:cccc5726bdf3 24 0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00, // .
dreschpe 0:cccc5726bdf3 25 0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00, // / (forward slash)
dreschpe 0:cccc5726bdf3 26 0x3E,0x63,0x63,0x6B,0x63,0x63,0x3E,0x00, // 0 0x30
dreschpe 0:cccc5726bdf3 27 0x18,0x38,0x58,0x18,0x18,0x18,0x7E,0x00, // 1
dreschpe 0:cccc5726bdf3 28 0x3C,0x66,0x06,0x1C,0x30,0x66,0x7E,0x00, // 2
dreschpe 0:cccc5726bdf3 29 0x3C,0x66,0x06,0x1C,0x06,0x66,0x3C,0x00, // 3
dreschpe 0:cccc5726bdf3 30 0x0E,0x1E,0x36,0x66,0x7F,0x06,0x0F,0x00, // 4
dreschpe 0:cccc5726bdf3 31 0x7E,0x60,0x7C,0x06,0x06,0x66,0x3C,0x00, // 5
dreschpe 0:cccc5726bdf3 32 0x1C,0x30,0x60,0x7C,0x66,0x66,0x3C,0x00, // 6
dreschpe 0:cccc5726bdf3 33 0x7E,0x66,0x06,0x0C,0x18,0x18,0x18,0x00, // 7
dreschpe 0:cccc5726bdf3 34 0x3C,0x66,0x66,0x3C,0x66,0x66,0x3C,0x00, // 8
dreschpe 0:cccc5726bdf3 35 0x3C,0x66,0x66,0x3E,0x06,0x0C,0x38,0x00, // 9
dreschpe 0:cccc5726bdf3 36 0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x00, // :
dreschpe 0:cccc5726bdf3 37 0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x30, // ;
dreschpe 0:cccc5726bdf3 38 0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00, // <
dreschpe 0:cccc5726bdf3 39 0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00, // =
dreschpe 0:cccc5726bdf3 40 0x30,0x18,0x0C,0x06,0x0C,0x18,0x30,0x00, // >
dreschpe 0:cccc5726bdf3 41 0x3C,0x66,0x06,0x0C,0x18,0x00,0x18,0x00, // ?
dreschpe 0:cccc5726bdf3 42 0x3E,0x63,0x6F,0x69,0x6F,0x60,0x3E,0x00, // @ 0x40
dreschpe 0:cccc5726bdf3 43 0x18,0x3C,0x66,0x66,0x7E,0x66,0x66,0x00, // A
dreschpe 0:cccc5726bdf3 44 0x7E,0x33,0x33,0x3E,0x33,0x33,0x7E,0x00, // B
dreschpe 0:cccc5726bdf3 45 0x1E,0x33,0x60,0x60,0x60,0x33,0x1E,0x00, // C
dreschpe 0:cccc5726bdf3 46 0x7C,0x36,0x33,0x33,0x33,0x36,0x7C,0x00, // D
dreschpe 0:cccc5726bdf3 47 0x7F,0x31,0x34,0x3C,0x34,0x31,0x7F,0x00, // E
dreschpe 0:cccc5726bdf3 48 0x7F,0x31,0x34,0x3C,0x34,0x30,0x78,0x00, // F
dreschpe 0:cccc5726bdf3 49 0x1E,0x33,0x60,0x60,0x67,0x33,0x1F,0x00, // G
dreschpe 0:cccc5726bdf3 50 0x66,0x66,0x66,0x7E,0x66,0x66,0x66,0x00, // H
dreschpe 0:cccc5726bdf3 51 0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // I
dreschpe 0:cccc5726bdf3 52 0x0F,0x06,0x06,0x06,0x66,0x66,0x3C,0x00, // J
dreschpe 0:cccc5726bdf3 53 0x73,0x33,0x36,0x3C,0x36,0x33,0x73,0x00, // K
dreschpe 0:cccc5726bdf3 54 0x78,0x30,0x30,0x30,0x31,0x33,0x7F,0x00, // L
dreschpe 0:cccc5726bdf3 55 0x63,0x77,0x7F,0x7F,0x6B,0x63,0x63,0x00, // M
dreschpe 0:cccc5726bdf3 56 0x63,0x73,0x7B,0x6F,0x67,0x63,0x63,0x00, // N
dreschpe 0:cccc5726bdf3 57 0x3E,0x63,0x63,0x63,0x63,0x63,0x3E,0x00, // O
dreschpe 0:cccc5726bdf3 58 0x7E,0x33,0x33,0x3E,0x30,0x30,0x78,0x00, // P 0x50
dreschpe 0:cccc5726bdf3 59 0x3C,0x66,0x66,0x66,0x6E,0x3C,0x0E,0x00, // Q
dreschpe 0:cccc5726bdf3 60 0x7E,0x33,0x33,0x3E,0x36,0x33,0x73,0x00, // R
dreschpe 0:cccc5726bdf3 61 0x3C,0x66,0x30,0x18,0x0C,0x66,0x3C,0x00, // S
dreschpe 0:cccc5726bdf3 62 0x7E,0x5A,0x18,0x18,0x18,0x18,0x3C,0x00, // T
dreschpe 0:cccc5726bdf3 63 0x66,0x66,0x66,0x66,0x66,0x66,0x7E,0x00, // U
dreschpe 0:cccc5726bdf3 64 0x66,0x66,0x66,0x66,0x66,0x3C,0x18,0x00, // V
dreschpe 0:cccc5726bdf3 65 0x63,0x63,0x63,0x6B,0x7F,0x77,0x63,0x00, // W
dreschpe 0:cccc5726bdf3 66 0x63,0x63,0x36,0x1C,0x1C,0x36,0x63,0x00, // X
dreschpe 0:cccc5726bdf3 67 0x66,0x66,0x66,0x3C,0x18,0x18,0x3C,0x00, // Y
dreschpe 0:cccc5726bdf3 68 0x7F,0x63,0x46,0x0C,0x19,0x33,0x7F,0x00, // Z
dreschpe 0:cccc5726bdf3 69 0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00, // [
dreschpe 0:cccc5726bdf3 70 0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00, // \ (back slash)
dreschpe 0:cccc5726bdf3 71 0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00, // ]
dreschpe 0:cccc5726bdf3 72 0x08,0x1C,0x36,0x63,0x00,0x00,0x00,0x00, // ^
dreschpe 0:cccc5726bdf3 73 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF, // _
dreschpe 0:cccc5726bdf3 74 0x18,0x18,0x0C,0x00,0x00,0x00,0x00,0x00, // ` 0x60
dreschpe 0:cccc5726bdf3 75 0x00,0x00,0x3C,0x06,0x3E,0x66,0x3B,0x00, // a
dreschpe 0:cccc5726bdf3 76 0x70,0x30,0x3E,0x33,0x33,0x33,0x6E,0x00, // b
dreschpe 0:cccc5726bdf3 77 0x00,0x00,0x3C,0x66,0x60,0x66,0x3C,0x00, // c
dreschpe 0:cccc5726bdf3 78 0x0E,0x06,0x3E,0x66,0x66,0x66,0x3B,0x00, // d
dreschpe 0:cccc5726bdf3 79 0x00,0x00,0x3C,0x66,0x7E,0x60,0x3C,0x00, // e
dreschpe 0:cccc5726bdf3 80 0x1C,0x36,0x30,0x78,0x30,0x30,0x78,0x00, // f
dreschpe 0:cccc5726bdf3 81 0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x7C, // g
dreschpe 0:cccc5726bdf3 82 0x70,0x30,0x36,0x3B,0x33,0x33,0x73,0x00, // h
dreschpe 0:cccc5726bdf3 83 0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00, // i
dreschpe 0:cccc5726bdf3 84 0x06,0x00,0x06,0x06,0x06,0x66,0x66,0x3C, // j
dreschpe 0:cccc5726bdf3 85 0x70,0x30,0x33,0x36,0x3C,0x36,0x73,0x00, // k
dreschpe 0:cccc5726bdf3 86 0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // l
dreschpe 0:cccc5726bdf3 87 0x00,0x00,0x66,0x7F,0x7F,0x6B,0x63,0x00, // m
dreschpe 0:cccc5726bdf3 88 0x00,0x00,0x7C,0x66,0x66,0x66,0x66,0x00, // n
dreschpe 0:cccc5726bdf3 89 0x00,0x00,0x3C,0x66,0x66,0x66,0x3C,0x00, // o
dreschpe 0:cccc5726bdf3 90 0x00,0x00,0x6E,0x33,0x33,0x3E,0x30,0x78, // p
dreschpe 0:cccc5726bdf3 91 0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x0F, // q
dreschpe 0:cccc5726bdf3 92 0x00,0x00,0x6E,0x3B,0x33,0x30,0x78,0x00, // r
dreschpe 0:cccc5726bdf3 93 0x00,0x00,0x3E,0x60,0x3C,0x06,0x7C,0x00, // s
dreschpe 0:cccc5726bdf3 94 0x08,0x18,0x3E,0x18,0x18,0x1A,0x0C,0x00, // t
dreschpe 0:cccc5726bdf3 95 0x00,0x00,0x66,0x66,0x66,0x66,0x3B,0x00, // u
dreschpe 0:cccc5726bdf3 96 0x00,0x00,0x66,0x66,0x66,0x3C,0x18,0x00, // v
dreschpe 0:cccc5726bdf3 97 0x00,0x00,0x63,0x6B,0x7F,0x7F,0x36,0x00, // w
dreschpe 0:cccc5726bdf3 98 0x00,0x00,0x63,0x36,0x1C,0x36,0x63,0x00, // x
dreschpe 0:cccc5726bdf3 99 0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x7C, // y
dreschpe 0:cccc5726bdf3 100 0x00,0x00,0x7E,0x4C,0x18,0x32,0x7E,0x00, // z
dreschpe 0:cccc5726bdf3 101 0x0E,0x18,0x18,0x70,0x18,0x18,0x0E,0x00, // {
dreschpe 0:cccc5726bdf3 102 0x0C,0x0C,0x0C,0x00,0x0C,0x0C,0x0C,0x00, // |
dreschpe 0:cccc5726bdf3 103 0x70,0x18,0x18,0x0E,0x18,0x18,0x70,0x00, // }
dreschpe 0:cccc5726bdf3 104 0x3B,0x6E,0x00,0x00,0x00,0x00,0x00,0x00, // ~
dreschpe 0:cccc5726bdf3 105 0x1C,0x36,0x36,0x1C,0x00,0x00,0x00,0x00}; // DEL
dreschpe 0:cccc5726bdf3 106
dreschpe 0:cccc5726bdf3 107 GraphicsDisplay::GraphicsDisplay(const char *name):TextDisplay(name) {
dreschpe 0:cccc5726bdf3 108 foreground(0xFFFF);
dreschpe 0:cccc5726bdf3 109 background(0x0000);
dreschpe 0:cccc5726bdf3 110 }
dreschpe 0:cccc5726bdf3 111
dreschpe 0:cccc5726bdf3 112 void GraphicsDisplay::character(int column, int row, int value) {
dreschpe 0:cccc5726bdf3 113 blitbit(column * 8, row * 8, 8, 8, (char*)&(FONT8x8[value - 0x1F][0]));
dreschpe 0:cccc5726bdf3 114 }
dreschpe 0:cccc5726bdf3 115
dreschpe 0:cccc5726bdf3 116 void GraphicsDisplay::window(int x, int y, int w, int h) {
dreschpe 0:cccc5726bdf3 117 // current pixel location
dreschpe 0:cccc5726bdf3 118 _x = x;
dreschpe 0:cccc5726bdf3 119 _y = y;
dreschpe 0:cccc5726bdf3 120 // window settings
dreschpe 0:cccc5726bdf3 121 _x1 = x;
dreschpe 0:cccc5726bdf3 122 _x2 = x + w - 1;
dreschpe 0:cccc5726bdf3 123 _y1 = y;
dreschpe 0:cccc5726bdf3 124 _y2 = y + h - 1;
dreschpe 0:cccc5726bdf3 125 }
dreschpe 0:cccc5726bdf3 126
dreschpe 0:cccc5726bdf3 127 void GraphicsDisplay::putp(int colour) {
dreschpe 0:cccc5726bdf3 128 // put pixel at current pixel location
dreschpe 0:cccc5726bdf3 129 pixel(_x, _y, colour);
dreschpe 0:cccc5726bdf3 130 // update pixel location based on window settings
dreschpe 0:cccc5726bdf3 131 _x++;
dreschpe 0:cccc5726bdf3 132 if(_x > _x2) {
dreschpe 0:cccc5726bdf3 133 _x = _x1;
dreschpe 0:cccc5726bdf3 134 _y++;
dreschpe 0:cccc5726bdf3 135 if(_y > _y2) {
dreschpe 0:cccc5726bdf3 136 _y = _y1;
dreschpe 0:cccc5726bdf3 137 }
dreschpe 0:cccc5726bdf3 138 }
dreschpe 0:cccc5726bdf3 139 }
dreschpe 0:cccc5726bdf3 140
dreschpe 0:cccc5726bdf3 141 void GraphicsDisplay::fill(int x, int y, int w, int h, int colour) {
dreschpe 0:cccc5726bdf3 142 window(x, y, w, h);
dreschpe 0:cccc5726bdf3 143 for(int i=0; i<w*h; i++) {
dreschpe 0:cccc5726bdf3 144 putp(colour);
dreschpe 0:cccc5726bdf3 145 }
dreschpe 0:cccc5726bdf3 146 }
dreschpe 0:cccc5726bdf3 147
dreschpe 0:cccc5726bdf3 148 void GraphicsDisplay::cls() {
dreschpe 0:cccc5726bdf3 149 fill(0, 0, width(), height(), _background);
dreschpe 0:cccc5726bdf3 150 }
dreschpe 0:cccc5726bdf3 151
dreschpe 0:cccc5726bdf3 152 void GraphicsDisplay::blit(int x, int y, int w, int h, const int *colour) {
dreschpe 0:cccc5726bdf3 153 window(x, y, w, h);
dreschpe 0:cccc5726bdf3 154 for(int i=0; i<w*h; i++) {
dreschpe 0:cccc5726bdf3 155 putp(colour[i]);
dreschpe 0:cccc5726bdf3 156 }
dreschpe 0:cccc5726bdf3 157 }
dreschpe 0:cccc5726bdf3 158
dreschpe 0:cccc5726bdf3 159 void GraphicsDisplay::blitbit(int x, int y, int w, int h, const char* colour) {
dreschpe 0:cccc5726bdf3 160 window(x, y, w, h);
dreschpe 0:cccc5726bdf3 161 for(int i = 0; i < w*h; i++) {
dreschpe 0:cccc5726bdf3 162 char byte = colour[i >> 3];
dreschpe 0:cccc5726bdf3 163 int offset = i & 0x7;
dreschpe 0:cccc5726bdf3 164 int c = ((byte << offset) & 0x80) ? _foreground : _background;
dreschpe 0:cccc5726bdf3 165 putp(c);
dreschpe 0:cccc5726bdf3 166 }
dreschpe 0:cccc5726bdf3 167 }
dreschpe 0:cccc5726bdf3 168
dreschpe 0:cccc5726bdf3 169 int GraphicsDisplay::columns() {
dreschpe 0:cccc5726bdf3 170 return width() / 8;
dreschpe 0:cccc5726bdf3 171 }
dreschpe 0:cccc5726bdf3 172
dreschpe 0:cccc5726bdf3 173 int GraphicsDisplay::rows() {
dreschpe 0:cccc5726bdf3 174 return height() / 8;
dreschpe 0:cccc5726bdf3 175 }
dreschpe 0:cccc5726bdf3 176