GraphicsDisplay.cpp

00001  //  ST7735 8 Bit SPI Library
00002  
00003 #include "GraphicsDisplay.h"
00004 
00005 const unsigned char FONT8x8[97][8] = {
00006 0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00, // columns, rows, num_bytes_per_char
00007 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // space 0x20
00008 0x30,0x78,0x78,0x30,0x30,0x00,0x30,0x00, // !
00009 0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00, // "
00010 0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00, // #
00011 0x18,0x3E,0x60,0x3C,0x06,0x7C,0x18,0x00, // $
00012 0x00,0x63,0x66,0x0C,0x18,0x33,0x63,0x00, // %
00013 0x1C,0x36,0x1C,0x3B,0x6E,0x66,0x3B,0x00, // &
00014 0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00, // '
00015 0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00, // (
00016 0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00, // )
00017 0x00,0x66,0x3C,0xFF,0x3C,0x66,0x00,0x00, // *
00018 0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00, // +
00019 0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x30, // ,
00020 0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00, // -
00021 0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00, // .
00022 0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00, // / (forward slash)
00023 0x3E,0x63,0x63,0x6B,0x63,0x63,0x3E,0x00, // 0 0x30
00024 0x18,0x38,0x58,0x18,0x18,0x18,0x7E,0x00, // 1
00025 0x3C,0x66,0x06,0x1C,0x30,0x66,0x7E,0x00, // 2
00026 0x3C,0x66,0x06,0x1C,0x06,0x66,0x3C,0x00, // 3
00027 0x0E,0x1E,0x36,0x66,0x7F,0x06,0x0F,0x00, // 4
00028 0x7E,0x60,0x7C,0x06,0x06,0x66,0x3C,0x00, // 5
00029 0x1C,0x30,0x60,0x7C,0x66,0x66,0x3C,0x00, // 6
00030 0x7E,0x66,0x06,0x0C,0x18,0x18,0x18,0x00, // 7
00031 0x3C,0x66,0x66,0x3C,0x66,0x66,0x3C,0x00, // 8
00032 0x3C,0x66,0x66,0x3E,0x06,0x0C,0x38,0x00, // 9
00033 0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x00, // :
00034 0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x30, // ;
00035 0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00, // <
00036 0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00, // =
00037 0x30,0x18,0x0C,0x06,0x0C,0x18,0x30,0x00, // >
00038 0x3C,0x66,0x06,0x0C,0x18,0x00,0x18,0x00, // ?
00039 0x3E,0x63,0x6F,0x69,0x6F,0x60,0x3E,0x00, // @ 0x40
00040 0x18,0x3C,0x66,0x66,0x7E,0x66,0x66,0x00, // A
00041 0x7E,0x33,0x33,0x3E,0x33,0x33,0x7E,0x00, // B
00042 0x1E,0x33,0x60,0x60,0x60,0x33,0x1E,0x00, // C
00043 0x7C,0x36,0x33,0x33,0x33,0x36,0x7C,0x00, // D
00044 0x7F,0x31,0x34,0x3C,0x34,0x31,0x7F,0x00, // E
00045 0x7F,0x31,0x34,0x3C,0x34,0x30,0x78,0x00, // F
00046 0x1E,0x33,0x60,0x60,0x67,0x33,0x1F,0x00, // G
00047 0x66,0x66,0x66,0x7E,0x66,0x66,0x66,0x00, // H
00048 0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // I
00049 0x0F,0x06,0x06,0x06,0x66,0x66,0x3C,0x00, // J
00050 0x73,0x33,0x36,0x3C,0x36,0x33,0x73,0x00, // K
00051 0x78,0x30,0x30,0x30,0x31,0x33,0x7F,0x00, // L
00052 0x63,0x77,0x7F,0x7F,0x6B,0x63,0x63,0x00, // M
00053 0x63,0x73,0x7B,0x6F,0x67,0x63,0x63,0x00, // N
00054 0x3E,0x63,0x63,0x63,0x63,0x63,0x3E,0x00, // O
00055 0x7E,0x33,0x33,0x3E,0x30,0x30,0x78,0x00, // P 0x50
00056 0x3C,0x66,0x66,0x66,0x6E,0x3C,0x0E,0x00, // Q
00057 0x7E,0x33,0x33,0x3E,0x36,0x33,0x73,0x00, // R
00058 0x3C,0x66,0x30,0x18,0x0C,0x66,0x3C,0x00, // S
00059 0x7E,0x5A,0x18,0x18,0x18,0x18,0x3C,0x00, // T
00060 0x66,0x66,0x66,0x66,0x66,0x66,0x7E,0x00, // U
00061 0x66,0x66,0x66,0x66,0x66,0x3C,0x18,0x00, // V
00062 0x63,0x63,0x63,0x6B,0x7F,0x77,0x63,0x00, // W
00063 0x63,0x63,0x36,0x1C,0x1C,0x36,0x63,0x00, // X
00064 0x66,0x66,0x66,0x3C,0x18,0x18,0x3C,0x00, // Y
00065 0x7F,0x63,0x46,0x0C,0x19,0x33,0x7F,0x00, // Z
00066 0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00, // [
00067 0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00, // \ (back slash)
00068 0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00, // ]
00069 0x08,0x1C,0x36,0x63,0x00,0x00,0x00,0x00, // ^
00070 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF, // _
00071 0x18,0x18,0x0C,0x00,0x00,0x00,0x00,0x00, // ` 0x60
00072 0x00,0x00,0x3C,0x06,0x3E,0x66,0x3B,0x00, // a
00073 0x70,0x30,0x3E,0x33,0x33,0x33,0x6E,0x00, // b
00074 0x00,0x00,0x3C,0x66,0x60,0x66,0x3C,0x00, // c
00075 0x0E,0x06,0x3E,0x66,0x66,0x66,0x3B,0x00, // d
00076 0x00,0x00,0x3C,0x66,0x7E,0x60,0x3C,0x00, // e
00077 0x1C,0x36,0x30,0x78,0x30,0x30,0x78,0x00, // f
00078 0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x7C, // g
00079 0x70,0x30,0x36,0x3B,0x33,0x33,0x73,0x00, // h
00080 0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00, // i
00081 0x06,0x00,0x06,0x06,0x06,0x66,0x66,0x3C, // j
00082 0x70,0x30,0x33,0x36,0x3C,0x36,0x73,0x00, // k
00083 0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // l
00084 0x00,0x00,0x66,0x7F,0x7F,0x6B,0x63,0x00, // m
00085 0x00,0x00,0x7C,0x66,0x66,0x66,0x66,0x00, // n
00086 0x00,0x00,0x3C,0x66,0x66,0x66,0x3C,0x00, // o
00087 0x00,0x00,0x6E,0x33,0x33,0x3E,0x30,0x78, // p
00088 0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x0F, // q
00089 0x00,0x00,0x6E,0x3B,0x33,0x30,0x78,0x00, // r
00090 0x00,0x00,0x3E,0x60,0x3C,0x06,0x7C,0x00, // s
00091 0x08,0x18,0x3E,0x18,0x18,0x1A,0x0C,0x00, // t
00092 0x00,0x00,0x66,0x66,0x66,0x66,0x3B,0x00, // u
00093 0x00,0x00,0x66,0x66,0x66,0x3C,0x18,0x00, // v
00094 0x00,0x00,0x63,0x6B,0x7F,0x7F,0x36,0x00, // w
00095 0x00,0x00,0x63,0x36,0x1C,0x36,0x63,0x00, // x
00096 0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x7C, // y
00097 0x00,0x00,0x7E,0x4C,0x18,0x32,0x7E,0x00, // z
00098 0x0E,0x18,0x18,0x70,0x18,0x18,0x0E,0x00, // {
00099 0x0C,0x0C,0x0C,0x00,0x0C,0x0C,0x0C,0x00, // |
00100 0x70,0x18,0x18,0x0E,0x18,0x18,0x70,0x00, // }
00101 0x3B,0x6E,0x00,0x00,0x00,0x00,0x00,0x00, // ~
00102 0x1C,0x36,0x36,0x1C,0x00,0x00,0x00,0x00}; // DEL
00103     
00104 GraphicsDisplay::GraphicsDisplay(const char *name):TextDisplay(name) {
00105     foreground(0xFFFF);
00106     background(0x0000);
00107 }
00108     
00109 void GraphicsDisplay::character(int column, int row, int value) { 
00110     blitbit(column * 8, row * 8, 8, 8, (char*)&(FONT8x8[value - 0x1F][0]));
00111 }
00112 
00113 void GraphicsDisplay::gwindow(int x, int y, int w, int h) {
00114     // current pixel location
00115     _x = x;
00116     _y = y;
00117     // window settings
00118     _x1 = x;
00119     _x2 = x + w - 1;
00120     _y1 = y;
00121     _y2 = y + h - 1;
00122 }
00123     
00124 void GraphicsDisplay::putp(int colour) {
00125     // put pixel at current pixel location
00126     pixel(_x, _y, colour);
00127     // update pixel location based on window settings
00128     _x++;
00129     if(_x > _x2) {
00130         _x = _x1;
00131         _y++;
00132         if(_y > _y2) {
00133             _y = _y1;
00134         }
00135     }
00136 }
00137 
00138 void GraphicsDisplay::fill(int x, int y, int w, int h, int colour) { 
00139     gwindow(x, y, w, h);
00140     for(int i=0; i<w*h; i++) {
00141         putp(colour);
00142     }
00143 }
00144     
00145 void GraphicsDisplay::cls() {
00146     fill(0, 0, width(), height(), _background);
00147 }
00148     
00149 void GraphicsDisplay::blit(int x, int y, int w, int h, const int *colour) { 
00150     gwindow(x, y, w, h);
00151     for(int i=0; i<w*h; i++) {
00152         putp(colour[i]);
00153     }
00154 }
00155     
00156 void GraphicsDisplay::blitbit(int x, int y, int w, int h, const char* colour) {
00157     gwindow(x, y, w, h);
00158     for(int i = 0; i < w*h; i++) {
00159         char byte = colour[i >> 3];
00160         int offset = i & 0x7;
00161         int c = ((byte << offset) & 0x80) ? _foreground : _background;
00162         putp(c);
00163     }
00164 }
00165     
00166 int GraphicsDisplay::columns() { 
00167     return width() / 8; 
00168 }
00169 
00170 int GraphicsDisplay::rows() { 
00171     return height() / 8; 
00172 }
00173