mehmet gok / demoUI

screen as source. Modified silab screen driver code.

Dependencies:   MemoryLCD

Dependents:   Host_Software_MAX32664GWEC_SpO2_HR

screen/GraphicsDisplay.cpp@0:0d4feb02e324, 2018-12-24 (annotated)

Committer:
gmehmet
Date:
Mon Dec 24 13:26:28 2018 +0000
Revision:
0:0d4feb02e324
screen as source.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gmehmet 0:0d4feb02e324 1 /* mbed GraphicsDisplay Display Library Base Class
gmehmet 0:0d4feb02e324 2 * Copyright (c) 2007-2009 sford
gmehmet 0:0d4feb02e324 3 * Released under the MIT License: http://mbed.org/license/mit
gmehmet 0:0d4feb02e324 4 */
gmehmet 0:0d4feb02e324 5
gmehmet 0:0d4feb02e324 6 #include "../screen/GraphicsDisplay.h"
gmehmet 0:0d4feb02e324 7
gmehmet 0:0d4feb02e324 8 #define incx() x++, dxt += d2xt, t += dxt
gmehmet 0:0d4feb02e324 9 #define incy() y--, dyt += d2yt, t += dyt
gmehmet 0:0d4feb02e324 10
gmehmet 0:0d4feb02e324 11 const unsigned char FONT8x8[97][8] = {
gmehmet 0:0d4feb02e324 12 {0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00}, // columns, rows, num_bytes_per_char
gmehmet 0:0d4feb02e324 13 {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, // space 0x20
gmehmet 0:0d4feb02e324 14 {0x30,0x78,0x78,0x30,0x30,0x00,0x30,0x00}, // !
gmehmet 0:0d4feb02e324 15 {0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00}, // "
gmehmet 0:0d4feb02e324 16 {0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00}, // #
gmehmet 0:0d4feb02e324 17 {0x18,0x3E,0x60,0x3C,0x06,0x7C,0x18,0x00}, // $
gmehmet 0:0d4feb02e324 18 {0x00,0x63,0x66,0x0C,0x18,0x33,0x63,0x00}, // %
gmehmet 0:0d4feb02e324 19 {0x1C,0x36,0x1C,0x3B,0x6E,0x66,0x3B,0x00}, // &
gmehmet 0:0d4feb02e324 20 {0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00}, // '
gmehmet 0:0d4feb02e324 21 {0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00}, // (
gmehmet 0:0d4feb02e324 22 {0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00}, // )
gmehmet 0:0d4feb02e324 23 {0x00,0x66,0x3C,0xFF,0x3C,0x66,0x00,0x00}, // *
gmehmet 0:0d4feb02e324 24 {0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00}, // +
gmehmet 0:0d4feb02e324 25 {0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x30}, // ,
gmehmet 0:0d4feb02e324 26 {0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00}, // -
gmehmet 0:0d4feb02e324 27 {0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00}, // .
gmehmet 0:0d4feb02e324 28 {0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00}, // / (forward slash)
gmehmet 0:0d4feb02e324 29 {0x3E,0x63,0x63,0x6B,0x63,0x63,0x3E,0x00}, // 0 0x30
gmehmet 0:0d4feb02e324 30 {0x18,0x38,0x58,0x18,0x18,0x18,0x7E,0x00}, // 1
gmehmet 0:0d4feb02e324 31 {0x3C,0x66,0x06,0x1C,0x30,0x66,0x7E,0x00}, // 2
gmehmet 0:0d4feb02e324 32 {0x3C,0x66,0x06,0x1C,0x06,0x66,0x3C,0x00}, // 3
gmehmet 0:0d4feb02e324 33 {0x0E,0x1E,0x36,0x66,0x7F,0x06,0x0F,0x00}, // 4
gmehmet 0:0d4feb02e324 34 {0x7E,0x60,0x7C,0x06,0x06,0x66,0x3C,0x00}, // 5
gmehmet 0:0d4feb02e324 35 {0x1C,0x30,0x60,0x7C,0x66,0x66,0x3C,0x00}, // 6
gmehmet 0:0d4feb02e324 36 {0x7E,0x66,0x06,0x0C,0x18,0x18,0x18,0x00}, // 7
gmehmet 0:0d4feb02e324 37 {0x3C,0x66,0x66,0x3C,0x66,0x66,0x3C,0x00}, // 8
gmehmet 0:0d4feb02e324 38 {0x3C,0x66,0x66,0x3E,0x06,0x0C,0x38,0x00}, // 9
gmehmet 0:0d4feb02e324 39 {0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x00}, // :
gmehmet 0:0d4feb02e324 40 {0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x30}, // ;
gmehmet 0:0d4feb02e324 41 {0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00}, // <
gmehmet 0:0d4feb02e324 42 {0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00}, // =
gmehmet 0:0d4feb02e324 43 {0x30,0x18,0x0C,0x06,0x0C,0x18,0x30,0x00}, // >
gmehmet 0:0d4feb02e324 44 {0x3C,0x66,0x06,0x0C,0x18,0x00,0x18,0x00}, // ?
gmehmet 0:0d4feb02e324 45 {0x3E,0x63,0x6F,0x69,0x6F,0x60,0x3E,0x00}, // @ 0x40
gmehmet 0:0d4feb02e324 46 {0x18,0x3C,0x66,0x66,0x7E,0x66,0x66,0x00}, // A
gmehmet 0:0d4feb02e324 47 {0x7E,0x33,0x33,0x3E,0x33,0x33,0x7E,0x00}, // B
gmehmet 0:0d4feb02e324 48 {0x1E,0x33,0x60,0x60,0x60,0x33,0x1E,0x00}, // C
gmehmet 0:0d4feb02e324 49 {0x7C,0x36,0x33,0x33,0x33,0x36,0x7C,0x00}, // D
gmehmet 0:0d4feb02e324 50 {0x7F,0x31,0x34,0x3C,0x34,0x31,0x7F,0x00}, // E
gmehmet 0:0d4feb02e324 51 {0x7F,0x31,0x34,0x3C,0x34,0x30,0x78,0x00}, // F
gmehmet 0:0d4feb02e324 52 {0x1E,0x33,0x60,0x60,0x67,0x33,0x1F,0x00}, // G
gmehmet 0:0d4feb02e324 53 {0x66,0x66,0x66,0x7E,0x66,0x66,0x66,0x00}, // H
gmehmet 0:0d4feb02e324 54 {0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00}, // I
gmehmet 0:0d4feb02e324 55 {0x0F,0x06,0x06,0x06,0x66,0x66,0x3C,0x00}, // J
gmehmet 0:0d4feb02e324 56 {0x73,0x33,0x36,0x3C,0x36,0x33,0x73,0x00}, // K
gmehmet 0:0d4feb02e324 57 {0x78,0x30,0x30,0x30,0x31,0x33,0x7F,0x00}, // L
gmehmet 0:0d4feb02e324 58 {0x63,0x77,0x7F,0x7F,0x6B,0x63,0x63,0x00}, // M
gmehmet 0:0d4feb02e324 59 {0x63,0x73,0x7B,0x6F,0x67,0x63,0x63,0x00}, // N
gmehmet 0:0d4feb02e324 60 {0x3E,0x63,0x63,0x63,0x63,0x63,0x3E,0x00}, // O
gmehmet 0:0d4feb02e324 61 {0x7E,0x33,0x33,0x3E,0x30,0x30,0x78,0x00}, // P 0x50
gmehmet 0:0d4feb02e324 62 {0x3C,0x66,0x66,0x66,0x6E,0x3C,0x0E,0x00}, // Q
gmehmet 0:0d4feb02e324 63 {0x7E,0x33,0x33,0x3E,0x36,0x33,0x73,0x00}, // R
gmehmet 0:0d4feb02e324 64 {0x3C,0x66,0x30,0x18,0x0C,0x66,0x3C,0x00}, // S
gmehmet 0:0d4feb02e324 65 {0x7E,0x5A,0x18,0x18,0x18,0x18,0x3C,0x00}, // T
gmehmet 0:0d4feb02e324 66 {0x66,0x66,0x66,0x66,0x66,0x66,0x7E,0x00}, // U
gmehmet 0:0d4feb02e324 67 {0x66,0x66,0x66,0x66,0x66,0x3C,0x18,0x00}, // V
gmehmet 0:0d4feb02e324 68 {0x63,0x63,0x63,0x6B,0x7F,0x77,0x63,0x00}, // W
gmehmet 0:0d4feb02e324 69 {0x63,0x63,0x36,0x1C,0x1C,0x36,0x63,0x00}, // X
gmehmet 0:0d4feb02e324 70 {0x66,0x66,0x66,0x3C,0x18,0x18,0x3C,0x00}, // Y
gmehmet 0:0d4feb02e324 71 {0x7F,0x63,0x46,0x0C,0x19,0x33,0x7F,0x00}, // Z
gmehmet 0:0d4feb02e324 72 {0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00}, // [
gmehmet 0:0d4feb02e324 73 {0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00}, // \ (back slash)
gmehmet 0:0d4feb02e324 74 {0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00}, // ]
gmehmet 0:0d4feb02e324 75 {0x08,0x1C,0x36,0x63,0x00,0x00,0x00,0x00}, // ^
gmehmet 0:0d4feb02e324 76 {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF}, // _
gmehmet 0:0d4feb02e324 77 {0x18,0x18,0x0C,0x00,0x00,0x00,0x00,0x00}, // ` 0x60
gmehmet 0:0d4feb02e324 78 {0x00,0x00,0x3C,0x06,0x3E,0x66,0x3B,0x00}, // a
gmehmet 0:0d4feb02e324 79 {0x70,0x30,0x3E,0x33,0x33,0x33,0x6E,0x00}, // b
gmehmet 0:0d4feb02e324 80 {0x00,0x00,0x3C,0x66,0x60,0x66,0x3C,0x00}, // c
gmehmet 0:0d4feb02e324 81 {0x0E,0x06,0x3E,0x66,0x66,0x66,0x3B,0x00}, // d
gmehmet 0:0d4feb02e324 82 {0x00,0x00,0x3C,0x66,0x7E,0x60,0x3C,0x00}, // e
gmehmet 0:0d4feb02e324 83 {0x1C,0x36,0x30,0x78,0x30,0x30,0x78,0x00}, // f
gmehmet 0:0d4feb02e324 84 {0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x7C}, // g
gmehmet 0:0d4feb02e324 85 {0x70,0x30,0x36,0x3B,0x33,0x33,0x73,0x00}, // h
gmehmet 0:0d4feb02e324 86 {0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00}, // i
gmehmet 0:0d4feb02e324 87 {0x06,0x00,0x06,0x06,0x06,0x66,0x66,0x3C}, // j
gmehmet 0:0d4feb02e324 88 {0x70,0x30,0x33,0x36,0x3C,0x36,0x73,0x00}, // k
gmehmet 0:0d4feb02e324 89 {0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00}, // l
gmehmet 0:0d4feb02e324 90 {0x00,0x00,0x66,0x7F,0x7F,0x6B,0x63,0x00}, // m
gmehmet 0:0d4feb02e324 91 {0x00,0x00,0x7C,0x66,0x66,0x66,0x66,0x00}, // n
gmehmet 0:0d4feb02e324 92 {0x00,0x00,0x3C,0x66,0x66,0x66,0x3C,0x00}, // o
gmehmet 0:0d4feb02e324 93 {0x00,0x00,0x6E,0x33,0x33,0x3E,0x30,0x78}, // p
gmehmet 0:0d4feb02e324 94 {0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x0F}, // q
gmehmet 0:0d4feb02e324 95 {0x00,0x00,0x6E,0x3B,0x33,0x30,0x78,0x00}, // r
gmehmet 0:0d4feb02e324 96 {0x00,0x00,0x3E,0x60,0x3C,0x06,0x7C,0x00}, // s
gmehmet 0:0d4feb02e324 97 {0x08,0x18,0x3E,0x18,0x18,0x1A,0x0C,0x00}, // t
gmehmet 0:0d4feb02e324 98 {0x00,0x00,0x66,0x66,0x66,0x66,0x3B,0x00}, // u
gmehmet 0:0d4feb02e324 99 {0x00,0x00,0x66,0x66,0x66,0x3C,0x18,0x00}, // v
gmehmet 0:0d4feb02e324 100 {0x00,0x00,0x63,0x6B,0x7F,0x7F,0x36,0x00}, // w
gmehmet 0:0d4feb02e324 101 {0x00,0x00,0x63,0x36,0x1C,0x36,0x63,0x00}, // x
gmehmet 0:0d4feb02e324 102 {0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x7C}, // y
gmehmet 0:0d4feb02e324 103 {0x00,0x00,0x7E,0x4C,0x18,0x32,0x7E,0x00}, // z
gmehmet 0:0d4feb02e324 104 {0x0E,0x18,0x18,0x70,0x18,0x18,0x0E,0x00}, // {
gmehmet 0:0d4feb02e324 105 {0x0C,0x0C,0x0C,0x00,0x0C,0x0C,0x0C,0x00}, // |
gmehmet 0:0d4feb02e324 106 {0x70,0x18,0x18,0x0E,0x18,0x18,0x70,0x00}, // }
gmehmet 0:0d4feb02e324 107 {0x3B,0x6E,0x00,0x00,0x00,0x00,0x00,0x00}, // ~
gmehmet 0:0d4feb02e324 108 {0x1C,0x36,0x36,0x1C,0x00,0x00,0x00,0x00}}; // DEL
gmehmet 0:0d4feb02e324 109
gmehmet 0:0d4feb02e324 110 GraphicsDisplay::GraphicsDisplay(const char *name):TextDisplay(name) {
gmehmet 0:0d4feb02e324 111 foreground((uint16_t)Black);
gmehmet 0:0d4feb02e324 112 background((uint16_t)White);
gmehmet 0:0d4feb02e324 113 // current pixel location
gmehmet 0:0d4feb02e324 114 _x = 0;
gmehmet 0:0d4feb02e324 115 _y = 0;
gmehmet 0:0d4feb02e324 116 // window settings
gmehmet 0:0d4feb02e324 117 _x1 = 0;
gmehmet 0:0d4feb02e324 118 _x2 = 0;
gmehmet 0:0d4feb02e324 119 _y1 = 0;
gmehmet 0:0d4feb02e324 120 _y2 = 0;
gmehmet 0:0d4feb02e324 121 }
gmehmet 0:0d4feb02e324 122
gmehmet 0:0d4feb02e324 123 void GraphicsDisplay::character(int column, int row, int value) {
gmehmet 0:0d4feb02e324 124 if(externalfont){ // send external font
gmehmet 0:0d4feb02e324 125 unsigned int hor,vert,offset,bpl,j,i,b;
gmehmet 0:0d4feb02e324 126 const unsigned char* sign;
gmehmet 0:0d4feb02e324 127 unsigned char z,w;
gmehmet 0:0d4feb02e324 128 if ((value < 31) || (value > 127)) return; // test char range
gmehmet 0:0d4feb02e324 129 // read font parameter from start of array
gmehmet 0:0d4feb02e324 130 offset = font[0]; // bytes / char
gmehmet 0:0d4feb02e324 131 hor = font[1]; // get hor size of font
gmehmet 0:0d4feb02e324 132 vert = font[2]; // get vert size of font
gmehmet 0:0d4feb02e324 133 bpl = font[3]; // bytes per line
gmehmet 0:0d4feb02e324 134 if (char_x + hor > width()) {
gmehmet 0:0d4feb02e324 135 char_x = 0;
gmehmet 0:0d4feb02e324 136 char_y = char_y + vert;
gmehmet 0:0d4feb02e324 137 if (char_y >= height() - font[2]) {
gmehmet 0:0d4feb02e324 138 char_y = 0;
gmehmet 0:0d4feb02e324 139 }
gmehmet 0:0d4feb02e324 140 }
gmehmet 0:0d4feb02e324 141 window(char_x, char_y,hor,vert); // char box
gmehmet 0:0d4feb02e324 142 sign = &font[((value -32) * offset) + 4]; // start of char bitmap
gmehmet 0:0d4feb02e324 143 w = sign[0]; // width of actual char
gmehmet 0:0d4feb02e324 144 for (j=0; j<vert; j++) { // vert line
gmehmet 0:0d4feb02e324 145 for (i=0; i<hor; i++) { // horz line
gmehmet 0:0d4feb02e324 146 z = sign[bpl * i + ((j & 0xF8) >> 3)+1];
gmehmet 0:0d4feb02e324 147 b = 1 << (j & 0x07);
gmehmet 0:0d4feb02e324 148 if (( z & b ) == 0x00) {
gmehmet 0:0d4feb02e324 149 putp(_foreground);
gmehmet 0:0d4feb02e324 150 }
gmehmet 0:0d4feb02e324 151 else {
gmehmet 0:0d4feb02e324 152 putp(_background);
gmehmet 0:0d4feb02e324 153 }
gmehmet 0:0d4feb02e324 154 }
gmehmet 0:0d4feb02e324 155 }
gmehmet 0:0d4feb02e324 156 if ((w + 2) < hor) { // x offset to next char
gmehmet 0:0d4feb02e324 157 char_x += w + 2;
gmehmet 0:0d4feb02e324 158 }
gmehmet 0:0d4feb02e324 159 else char_x += hor;
gmehmet 0:0d4feb02e324 160 }
gmehmet 0:0d4feb02e324 161 // send default font
gmehmet 0:0d4feb02e324 162 else {
gmehmet 0:0d4feb02e324 163 blitbit(column * 8, row * 8, 8, 8, (char*)&(FONT8x8[value - 0x1F][0]));
gmehmet 0:0d4feb02e324 164 }
gmehmet 0:0d4feb02e324 165 }
gmehmet 0:0d4feb02e324 166
gmehmet 0:0d4feb02e324 167 void GraphicsDisplay::window(int x, int y, int w, int h) {
gmehmet 0:0d4feb02e324 168 // current pixel location
gmehmet 0:0d4feb02e324 169 _x = x;
gmehmet 0:0d4feb02e324 170 _y = y;
gmehmet 0:0d4feb02e324 171 // window settings
gmehmet 0:0d4feb02e324 172 _x1 = x;
gmehmet 0:0d4feb02e324 173 _x2 = x + w - 1;
gmehmet 0:0d4feb02e324 174 _y1 = y;
gmehmet 0:0d4feb02e324 175 _y2 = y + h - 1;
gmehmet 0:0d4feb02e324 176 }
gmehmet 0:0d4feb02e324 177
gmehmet 0:0d4feb02e324 178 void GraphicsDisplay::putp(int colour) {
gmehmet 0:0d4feb02e324 179 // put pixel at current pixel location
gmehmet 0:0d4feb02e324 180 pixel(_x, _y, colour);
gmehmet 0:0d4feb02e324 181 // update pixel location based on window settings
gmehmet 0:0d4feb02e324 182 _x++;
gmehmet 0:0d4feb02e324 183 if(_x > _x2) {
gmehmet 0:0d4feb02e324 184 _x = _x1;
gmehmet 0:0d4feb02e324 185 _y++;
gmehmet 0:0d4feb02e324 186 if(_y > _y2) {
gmehmet 0:0d4feb02e324 187 _y = _y1;
gmehmet 0:0d4feb02e324 188 }
gmehmet 0:0d4feb02e324 189 }
gmehmet 0:0d4feb02e324 190 }
gmehmet 0:0d4feb02e324 191
gmehmet 0:0d4feb02e324 192 void GraphicsDisplay::rect(int x0, int y0, int x1, int y1, int color) {
gmehmet 0:0d4feb02e324 193 if (x1 > x0) hline(x0,x1,y0,color);
gmehmet 0:0d4feb02e324 194 else hline(x1,x0,y0,color);
gmehmet 0:0d4feb02e324 195 if (y1 > y0) vline(x0,y0,y1,color);
gmehmet 0:0d4feb02e324 196 else vline(x0,y1,y0,color);
gmehmet 0:0d4feb02e324 197 if (x1 > x0) hline(x0,x1,y1,color);
gmehmet 0:0d4feb02e324 198 else hline(x1,x0,y1,color);
gmehmet 0:0d4feb02e324 199 if (y1 > y0) vline(x1,y0,y1,color);
gmehmet 0:0d4feb02e324 200 else vline(x1,y1,y0,color);
gmehmet 0:0d4feb02e324 201 return;
gmehmet 0:0d4feb02e324 202 }
gmehmet 0:0d4feb02e324 203
gmehmet 0:0d4feb02e324 204 void GraphicsDisplay::fillrect(int x0, int y0, int w, int h, int colour) {
gmehmet 0:0d4feb02e324 205 unsigned long int index=0;
gmehmet 0:0d4feb02e324 206 if (w < 0) {
gmehmet 0:0d4feb02e324 207 x0 = x0 + w;
gmehmet 0:0d4feb02e324 208 w = -w;
gmehmet 0:0d4feb02e324 209 }
gmehmet 0:0d4feb02e324 210 if (h < 0) {
gmehmet 0:0d4feb02e324 211 y0 = y0 + h;
gmehmet 0:0d4feb02e324 212 h = -h;
gmehmet 0:0d4feb02e324 213 }
gmehmet 0:0d4feb02e324 214 window(x0,y0,w,h);
gmehmet 0:0d4feb02e324 215 int num = h*w;
gmehmet 0:0d4feb02e324 216 for( index = 0; index<num; index++ ) {
gmehmet 0:0d4feb02e324 217 putp(colour);
gmehmet 0:0d4feb02e324 218 }
gmehmet 0:0d4feb02e324 219 return;
gmehmet 0:0d4feb02e324 220 }
gmehmet 0:0d4feb02e324 221
gmehmet 0:0d4feb02e324 222 void GraphicsDisplay::fill(int x, int y, int w, int h, int colour) {
gmehmet 0:0d4feb02e324 223 fillrect(x, y, w, h, colour);
gmehmet 0:0d4feb02e324 224 }
gmehmet 0:0d4feb02e324 225
gmehmet 0:0d4feb02e324 226 void GraphicsDisplay::circle(int x, int y, int r,int colour){
gmehmet 0:0d4feb02e324 227 int ce = -r;
gmehmet 0:0d4feb02e324 228 int cx = r;
gmehmet 0:0d4feb02e324 229 int cy = 0;
gmehmet 0:0d4feb02e324 230 while(cx >= cy){
gmehmet 0:0d4feb02e324 231 pixel(x+cx,y+cy,colour);
gmehmet 0:0d4feb02e324 232 pixel(x-cx,y-cy,colour);
gmehmet 0:0d4feb02e324 233 pixel(x-cx,y+cy,colour);
gmehmet 0:0d4feb02e324 234 pixel(x+cx,y-cy,colour);
gmehmet 0:0d4feb02e324 235 pixel(x+cy,y+cx,colour);
gmehmet 0:0d4feb02e324 236 pixel(x-cy,y+cx,colour);
gmehmet 0:0d4feb02e324 237 pixel(x-cy,y-cx,colour);
gmehmet 0:0d4feb02e324 238 pixel(x+cy,y-cx,colour);
gmehmet 0:0d4feb02e324 239 ce += 2*cy++ + 1;
gmehmet 0:0d4feb02e324 240 if(ce >= 0){
gmehmet 0:0d4feb02e324 241 ce -= 2*cx---1;
gmehmet 0:0d4feb02e324 242 }
gmehmet 0:0d4feb02e324 243
gmehmet 0:0d4feb02e324 244 }
gmehmet 0:0d4feb02e324 245
gmehmet 0:0d4feb02e324 246 }
gmehmet 0:0d4feb02e324 247
gmehmet 0:0d4feb02e324 248 // To draw circle set a and b to the same values
gmehmet 0:0d4feb02e324 249 void GraphicsDisplay::ellipse(int xc, int yc, int a, int b, unsigned int colour)
gmehmet 0:0d4feb02e324 250 {
gmehmet 0:0d4feb02e324 251 /* e(x,y) = b^2*x^2 + a^2*y^2 - a^2*b^2 */
gmehmet 0:0d4feb02e324 252 int x = 0, y = b;
gmehmet 0:0d4feb02e324 253 long a2 = (long)a*a, b2 = (long)b*b;
gmehmet 0:0d4feb02e324 254 long crit1 = -(a2/4 + a%2 + b2);
gmehmet 0:0d4feb02e324 255 long crit2 = -(b2/4 + b%2 + a2);
gmehmet 0:0d4feb02e324 256 long crit3 = -(b2/4 + b%2);
gmehmet 0:0d4feb02e324 257 long t = -a2*y; // e(x+1/2,y-1/2) - (a^2+b^2)/4
gmehmet 0:0d4feb02e324 258 long dxt = 2*b2*x, dyt = -2*a2*y;
gmehmet 0:0d4feb02e324 259 long d2xt = 2*b2, d2yt = 2*a2;
gmehmet 0:0d4feb02e324 260
gmehmet 0:0d4feb02e324 261 while (y>=0 && x<=a) {
gmehmet 0:0d4feb02e324 262 pixel(xc+x, yc+y, colour);
gmehmet 0:0d4feb02e324 263 if (x!=0 || y!=0)
gmehmet 0:0d4feb02e324 264 pixel(xc-x, yc-y, colour);
gmehmet 0:0d4feb02e324 265 if (x!=0 && y!=0) {
gmehmet 0:0d4feb02e324 266 pixel(xc+x, yc-y, colour);
gmehmet 0:0d4feb02e324 267 pixel(xc-x, yc+y, colour);
gmehmet 0:0d4feb02e324 268 }
gmehmet 0:0d4feb02e324 269 if (t + b2*x <= crit1 || // e(x+1,y-1/2) <= 0
gmehmet 0:0d4feb02e324 270 t + a2*y <= crit3) // e(x+1/2,y) <= 0
gmehmet 0:0d4feb02e324 271 incx();
gmehmet 0:0d4feb02e324 272 else if (t - a2*y > crit2) // e(x+1/2,y-1) > 0
gmehmet 0:0d4feb02e324 273 incy();
gmehmet 0:0d4feb02e324 274 else {
gmehmet 0:0d4feb02e324 275 incx();
gmehmet 0:0d4feb02e324 276 incy();
gmehmet 0:0d4feb02e324 277 }
gmehmet 0:0d4feb02e324 278 }
gmehmet 0:0d4feb02e324 279 }
gmehmet 0:0d4feb02e324 280 // To draw circle set a and b to the same values
gmehmet 0:0d4feb02e324 281 void GraphicsDisplay::fillellipse(int xc, int yc, int a, int b, unsigned int colour)
gmehmet 0:0d4feb02e324 282 {
gmehmet 0:0d4feb02e324 283 /* e(x,y) = b^2*x^2 + a^2*y^2 - a^2*b^2 */
gmehmet 0:0d4feb02e324 284 int x = 0, y = b;
gmehmet 0:0d4feb02e324 285 int rx = x, ry = y;
gmehmet 0:0d4feb02e324 286 unsigned int width = 1;
gmehmet 0:0d4feb02e324 287 unsigned int height = 1;
gmehmet 0:0d4feb02e324 288 long a2 = (long)a*a, b2 = (long)b*b;
gmehmet 0:0d4feb02e324 289 long crit1 = -(a2/4 + a%2 + b2);
gmehmet 0:0d4feb02e324 290 long crit2 = -(b2/4 + b%2 + a2);
gmehmet 0:0d4feb02e324 291 long crit3 = -(b2/4 + b%2);
gmehmet 0:0d4feb02e324 292 long t = -a2*y; // e(x+1/2,y-1/2) - (a^2+b^2)/4
gmehmet 0:0d4feb02e324 293 long dxt = 2*b2*x, dyt = -2*a2*y;
gmehmet 0:0d4feb02e324 294 long d2xt = 2*b2, d2yt = 2*a2;
gmehmet 0:0d4feb02e324 295 if (b == 0) {
gmehmet 0:0d4feb02e324 296 fillrect(xc-a, yc, 2*a+1, 1, colour);
gmehmet 0:0d4feb02e324 297 return;
gmehmet 0:0d4feb02e324 298 }
gmehmet 0:0d4feb02e324 299 while (y>=0 && x<=a) {
gmehmet 0:0d4feb02e324 300 if (t + b2*x <= crit1 || // e(x+1,y-1/2) <= 0
gmehmet 0:0d4feb02e324 301 t + a2*y <= crit3) { // e(x+1/2,y) <= 0
gmehmet 0:0d4feb02e324 302 if (height == 1)
gmehmet 0:0d4feb02e324 303 ; // draw nothing
gmehmet 0:0d4feb02e324 304 else if (ry*2+1 > (height-1)*2) {
gmehmet 0:0d4feb02e324 305 fillrect(xc-rx, yc-ry, width, height-1, colour);
gmehmet 0:0d4feb02e324 306 fillrect(xc-rx, yc+ry+1, width, 1-height, colour);
gmehmet 0:0d4feb02e324 307 ry -= height-1;
gmehmet 0:0d4feb02e324 308 height = 1;
gmehmet 0:0d4feb02e324 309 } else {
gmehmet 0:0d4feb02e324 310 fillrect(xc-rx, yc-ry, width, ry*2+1, colour);
gmehmet 0:0d4feb02e324 311 ry -= ry;
gmehmet 0:0d4feb02e324 312 height = 1;
gmehmet 0:0d4feb02e324 313 }
gmehmet 0:0d4feb02e324 314 incx();
gmehmet 0:0d4feb02e324 315 rx++;
gmehmet 0:0d4feb02e324 316 width += 2;
gmehmet 0:0d4feb02e324 317 } else if (t - a2*y > crit2) { // e(x+1/2,y-1) > 0
gmehmet 0:0d4feb02e324 318 incy();
gmehmet 0:0d4feb02e324 319 height++;
gmehmet 0:0d4feb02e324 320 } else {
gmehmet 0:0d4feb02e324 321 if (ry*2+1 > height*2) {
gmehmet 0:0d4feb02e324 322 fillrect(xc-rx, yc-ry, width, height, colour);
gmehmet 0:0d4feb02e324 323 fillrect(xc-rx, yc+ry+1, width, -height, colour);
gmehmet 0:0d4feb02e324 324 } else {
gmehmet 0:0d4feb02e324 325 fillrect(xc-rx, yc-ry, width, ry*2+1, colour);
gmehmet 0:0d4feb02e324 326 }
gmehmet 0:0d4feb02e324 327 incx();
gmehmet 0:0d4feb02e324 328 incy();
gmehmet 0:0d4feb02e324 329 rx++;
gmehmet 0:0d4feb02e324 330 width += 2;
gmehmet 0:0d4feb02e324 331 ry -= height;
gmehmet 0:0d4feb02e324 332 height = 1;
gmehmet 0:0d4feb02e324 333 }
gmehmet 0:0d4feb02e324 334 }
gmehmet 0:0d4feb02e324 335 if (ry > height) {
gmehmet 0:0d4feb02e324 336 fillrect(xc-rx, yc-ry, width, height, colour);
gmehmet 0:0d4feb02e324 337 fillrect(xc-rx, yc+ry+1, width, -height, colour);
gmehmet 0:0d4feb02e324 338 } else {
gmehmet 0:0d4feb02e324 339 fillrect(xc-rx, yc-ry, width, ry*2+1, colour);
gmehmet 0:0d4feb02e324 340 }
gmehmet 0:0d4feb02e324 341 }
gmehmet 0:0d4feb02e324 342
gmehmet 0:0d4feb02e324 343
gmehmet 0:0d4feb02e324 344 void GraphicsDisplay::line(int x0, int y0, int x1, int y1, int colour) {
gmehmet 0:0d4feb02e324 345 //window(x0, y, w, h);
gmehmet 0:0d4feb02e324 346 int dx = 0, dy = 0;
gmehmet 0:0d4feb02e324 347 int dx_sym = 0, dy_sym = 0;
gmehmet 0:0d4feb02e324 348 int dx_x2 = 0, dy_x2 = 0;
gmehmet 0:0d4feb02e324 349 int di = 0;
gmehmet 0:0d4feb02e324 350 dx = x1-x0;
gmehmet 0:0d4feb02e324 351 dy = y1-y0;
gmehmet 0:0d4feb02e324 352
gmehmet 0:0d4feb02e324 353 if (dx == 0) { /* vertical line */
gmehmet 0:0d4feb02e324 354 if (y1 > y0) vline(x0,y0,y1,colour);
gmehmet 0:0d4feb02e324 355 else vline(x0,y1,y0,colour);
gmehmet 0:0d4feb02e324 356 return;
gmehmet 0:0d4feb02e324 357 }
gmehmet 0:0d4feb02e324 358 if (dx > 0) {
gmehmet 0:0d4feb02e324 359 dx_sym = 1;
gmehmet 0:0d4feb02e324 360 } else {
gmehmet 0:0d4feb02e324 361 dx_sym = -1;
gmehmet 0:0d4feb02e324 362 }
gmehmet 0:0d4feb02e324 363 if (dy == 0) { /* horizontal line */
gmehmet 0:0d4feb02e324 364 if (x1 > x0) hline(x0,x1,y0,colour);
gmehmet 0:0d4feb02e324 365 else hline(x1,x0,y0,colour);
gmehmet 0:0d4feb02e324 366 return;
gmehmet 0:0d4feb02e324 367 }
gmehmet 0:0d4feb02e324 368 if (dy > 0) {
gmehmet 0:0d4feb02e324 369 dy_sym = 1;
gmehmet 0:0d4feb02e324 370 } else {
gmehmet 0:0d4feb02e324 371 dy_sym = -1;
gmehmet 0:0d4feb02e324 372 }
gmehmet 0:0d4feb02e324 373 dx = dx_sym*dx;
gmehmet 0:0d4feb02e324 374 dy = dy_sym*dy;
gmehmet 0:0d4feb02e324 375 dx_x2 = dx*2;
gmehmet 0:0d4feb02e324 376 dy_x2 = dy*2;
gmehmet 0:0d4feb02e324 377 if (dx >= dy) {
gmehmet 0:0d4feb02e324 378 di = dy_x2 - dx;
gmehmet 0:0d4feb02e324 379 while (x0 != x1) {
gmehmet 0:0d4feb02e324 380
gmehmet 0:0d4feb02e324 381 pixel(x0, y0, colour);
gmehmet 0:0d4feb02e324 382 x0 += dx_sym;
gmehmet 0:0d4feb02e324 383 if (di<0) {
gmehmet 0:0d4feb02e324 384 di += dy_x2;
gmehmet 0:0d4feb02e324 385 } else {
gmehmet 0:0d4feb02e324 386 di += dy_x2 - dx_x2;
gmehmet 0:0d4feb02e324 387 y0 += dy_sym;
gmehmet 0:0d4feb02e324 388 }
gmehmet 0:0d4feb02e324 389 }
gmehmet 0:0d4feb02e324 390 pixel(x0, y0, colour);
gmehmet 0:0d4feb02e324 391 } else {
gmehmet 0:0d4feb02e324 392 di = dx_x2 - dy;
gmehmet 0:0d4feb02e324 393 while (y0 != y1) {
gmehmet 0:0d4feb02e324 394 pixel(x0, y0, colour);
gmehmet 0:0d4feb02e324 395 y0 += dy_sym;
gmehmet 0:0d4feb02e324 396 if (di < 0) {
gmehmet 0:0d4feb02e324 397 di += dx_x2;
gmehmet 0:0d4feb02e324 398 } else {
gmehmet 0:0d4feb02e324 399 di += dx_x2 - dy_x2;
gmehmet 0:0d4feb02e324 400 x0 += dx_sym;
gmehmet 0:0d4feb02e324 401 }
gmehmet 0:0d4feb02e324 402 }
gmehmet 0:0d4feb02e324 403 pixel(x0, y0, colour);
gmehmet 0:0d4feb02e324 404 }
gmehmet 0:0d4feb02e324 405 return;
gmehmet 0:0d4feb02e324 406 }
gmehmet 0:0d4feb02e324 407
gmehmet 0:0d4feb02e324 408 void GraphicsDisplay::hline(int x0, int x1, int y, int colour) {
gmehmet 0:0d4feb02e324 409 int w;
gmehmet 0:0d4feb02e324 410 w = x1 - x0 + 1;
gmehmet 0:0d4feb02e324 411 window(x0,y,w,1);
gmehmet 0:0d4feb02e324 412 for (int x=0; x<w; x++) {
gmehmet 0:0d4feb02e324 413 putp(colour);
gmehmet 0:0d4feb02e324 414 }
gmehmet 0:0d4feb02e324 415 return;
gmehmet 0:0d4feb02e324 416 }
gmehmet 0:0d4feb02e324 417
gmehmet 0:0d4feb02e324 418 void GraphicsDisplay::vline(int x, int y0, int y1, int colour) {
gmehmet 0:0d4feb02e324 419 int h;
gmehmet 0:0d4feb02e324 420 h = y1 - y0 + 1;
gmehmet 0:0d4feb02e324 421 window(x,y0,1,h);
gmehmet 0:0d4feb02e324 422 for (int y=0; y<h; y++) {
gmehmet 0:0d4feb02e324 423 putp(colour);
gmehmet 0:0d4feb02e324 424 }
gmehmet 0:0d4feb02e324 425 return;
gmehmet 0:0d4feb02e324 426 }
gmehmet 0:0d4feb02e324 427
gmehmet 0:0d4feb02e324 428 void GraphicsDisplay::cls() {
gmehmet 0:0d4feb02e324 429 fill(0, 0, width(), height(), _background);
gmehmet 0:0d4feb02e324 430 }
gmehmet 0:0d4feb02e324 431
gmehmet 0:0d4feb02e324 432 void GraphicsDisplay::blit(int x, int y, int w, int h, const int *colour) {
gmehmet 0:0d4feb02e324 433 window(x, y, w, h);
gmehmet 0:0d4feb02e324 434 for(int i=0; i<w*h; i++) {
gmehmet 0:0d4feb02e324 435 putp(colour[i]);
gmehmet 0:0d4feb02e324 436 }
gmehmet 0:0d4feb02e324 437 }
gmehmet 0:0d4feb02e324 438
gmehmet 0:0d4feb02e324 439 void GraphicsDisplay::blitbit(int x, int y, int w, int h, const char* colour) {
gmehmet 0:0d4feb02e324 440 window(x, y, w, h);
gmehmet 0:0d4feb02e324 441 for(int i = 0; i < w*h; i++) {
gmehmet 0:0d4feb02e324 442 char byte = colour[i >> 3];
gmehmet 0:0d4feb02e324 443 int offset = i & 0x7;
gmehmet 0:0d4feb02e324 444 int c = ((byte << (offset)) & 0x80) ? _foreground : _background;
gmehmet 0:0d4feb02e324 445 putp(c);
gmehmet 0:0d4feb02e324 446 }
gmehmet 0:0d4feb02e324 447 }
gmehmet 0:0d4feb02e324 448
gmehmet 0:0d4feb02e324 449 int GraphicsDisplay::columns() {
gmehmet 0:0d4feb02e324 450 return width() / 8;
gmehmet 0:0d4feb02e324 451 }
gmehmet 0:0d4feb02e324 452
gmehmet 0:0d4feb02e324 453 int GraphicsDisplay::rows() {
gmehmet 0:0d4feb02e324 454 return height() / 8;
gmehmet 0:0d4feb02e324 455 }
gmehmet 0:0d4feb02e324 456