Arun Raj / Mbed OS MAXREFDES101_SOURCE

TEST

Dependencies:   max32630fthr Adafruit_FeatherOLED USBDevice

Drivers/LS013B7DH03/GraphicsDisplay.cpp@4:291477e8690d, 2020-04-19 (annotated)

Committer:
wwwarunraj
Date:
Sun Apr 19 11:19:57 2020 +0000
Revision:
4:291477e8690d
Parent:
1:f60eafbf009a 
19/04

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gmehmet 1:f60eafbf009a 1 /* mbed GraphicsDisplay Display Library Base Class
gmehmet 1:f60eafbf009a 2 * Copyright (c) 2007-2009 sford
gmehmet 1:f60eafbf009a 3 * Released under the MIT License: http://mbed.org/license/mit
gmehmet 1:f60eafbf009a 4 */
gmehmet 1:f60eafbf009a 5
gmehmet 1:f60eafbf009a 6 #include "GraphicsDisplay.h"
gmehmet 1:f60eafbf009a 7
gmehmet 1:f60eafbf009a 8 #define incx() x++, dxt += d2xt, t += dxt
gmehmet 1:f60eafbf009a 9 #define incy() y--, dyt += d2yt, t += dyt
gmehmet 1:f60eafbf009a 10
gmehmet 1:f60eafbf009a 11 const unsigned char FONT8x8[97][8] = {
gmehmet 1:f60eafbf009a 12 {0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00}, // columns, rows, num_bytes_per_char
gmehmet 1:f60eafbf009a 13 {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, // space 0x20
gmehmet 1:f60eafbf009a 14 {0x30,0x78,0x78,0x30,0x30,0x00,0x30,0x00}, // !
gmehmet 1:f60eafbf009a 15 {0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00}, // "
gmehmet 1:f60eafbf009a 16 {0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00}, // #
gmehmet 1:f60eafbf009a 17 {0x18,0x3E,0x60,0x3C,0x06,0x7C,0x18,0x00}, // $
gmehmet 1:f60eafbf009a 18 {0x00,0x63,0x66,0x0C,0x18,0x33,0x63,0x00}, // %
gmehmet 1:f60eafbf009a 19 {0x1C,0x36,0x1C,0x3B,0x6E,0x66,0x3B,0x00}, // &
gmehmet 1:f60eafbf009a 20 {0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00}, // '
gmehmet 1:f60eafbf009a 21 {0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00}, // (
gmehmet 1:f60eafbf009a 22 {0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00}, // )
gmehmet 1:f60eafbf009a 23 {0x00,0x66,0x3C,0xFF,0x3C,0x66,0x00,0x00}, // *
gmehmet 1:f60eafbf009a 24 {0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00}, // +
gmehmet 1:f60eafbf009a 25 {0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x30}, // ,
gmehmet 1:f60eafbf009a 26 {0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00}, // -
gmehmet 1:f60eafbf009a 27 {0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00}, // .
gmehmet 1:f60eafbf009a 28 {0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00}, // / (forward slash)
gmehmet 1:f60eafbf009a 29 {0x3E,0x63,0x63,0x6B,0x63,0x63,0x3E,0x00}, // 0 0x30
gmehmet 1:f60eafbf009a 30 {0x18,0x38,0x58,0x18,0x18,0x18,0x7E,0x00}, // 1
gmehmet 1:f60eafbf009a 31 {0x3C,0x66,0x06,0x1C,0x30,0x66,0x7E,0x00}, // 2
gmehmet 1:f60eafbf009a 32 {0x3C,0x66,0x06,0x1C,0x06,0x66,0x3C,0x00}, // 3
gmehmet 1:f60eafbf009a 33 {0x0E,0x1E,0x36,0x66,0x7F,0x06,0x0F,0x00}, // 4
gmehmet 1:f60eafbf009a 34 {0x7E,0x60,0x7C,0x06,0x06,0x66,0x3C,0x00}, // 5
gmehmet 1:f60eafbf009a 35 {0x1C,0x30,0x60,0x7C,0x66,0x66,0x3C,0x00}, // 6
gmehmet 1:f60eafbf009a 36 {0x7E,0x66,0x06,0x0C,0x18,0x18,0x18,0x00}, // 7
gmehmet 1:f60eafbf009a 37 {0x3C,0x66,0x66,0x3C,0x66,0x66,0x3C,0x00}, // 8
gmehmet 1:f60eafbf009a 38 {0x3C,0x66,0x66,0x3E,0x06,0x0C,0x38,0x00}, // 9
gmehmet 1:f60eafbf009a 39 {0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x00}, // :
gmehmet 1:f60eafbf009a 40 {0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x30}, // ;
gmehmet 1:f60eafbf009a 41 {0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00}, // <
gmehmet 1:f60eafbf009a 42 {0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00}, // =
gmehmet 1:f60eafbf009a 43 {0x30,0x18,0x0C,0x06,0x0C,0x18,0x30,0x00}, // >
gmehmet 1:f60eafbf009a 44 {0x3C,0x66,0x06,0x0C,0x18,0x00,0x18,0x00}, // ?
gmehmet 1:f60eafbf009a 45 {0x3E,0x63,0x6F,0x69,0x6F,0x60,0x3E,0x00}, // @ 0x40
gmehmet 1:f60eafbf009a 46 {0x18,0x3C,0x66,0x66,0x7E,0x66,0x66,0x00}, // A
gmehmet 1:f60eafbf009a 47 {0x7E,0x33,0x33,0x3E,0x33,0x33,0x7E,0x00}, // B
gmehmet 1:f60eafbf009a 48 {0x1E,0x33,0x60,0x60,0x60,0x33,0x1E,0x00}, // C
gmehmet 1:f60eafbf009a 49 {0x7C,0x36,0x33,0x33,0x33,0x36,0x7C,0x00}, // D
gmehmet 1:f60eafbf009a 50 {0x7F,0x31,0x34,0x3C,0x34,0x31,0x7F,0x00}, // E
gmehmet 1:f60eafbf009a 51 {0x7F,0x31,0x34,0x3C,0x34,0x30,0x78,0x00}, // F
gmehmet 1:f60eafbf009a 52 {0x1E,0x33,0x60,0x60,0x67,0x33,0x1F,0x00}, // G
gmehmet 1:f60eafbf009a 53 {0x66,0x66,0x66,0x7E,0x66,0x66,0x66,0x00}, // H
gmehmet 1:f60eafbf009a 54 {0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00}, // I
gmehmet 1:f60eafbf009a 55 {0x0F,0x06,0x06,0x06,0x66,0x66,0x3C,0x00}, // J
gmehmet 1:f60eafbf009a 56 {0x73,0x33,0x36,0x3C,0x36,0x33,0x73,0x00}, // K
gmehmet 1:f60eafbf009a 57 {0x78,0x30,0x30,0x30,0x31,0x33,0x7F,0x00}, // L
gmehmet 1:f60eafbf009a 58 {0x63,0x77,0x7F,0x7F,0x6B,0x63,0x63,0x00}, // M
gmehmet 1:f60eafbf009a 59 {0x63,0x73,0x7B,0x6F,0x67,0x63,0x63,0x00}, // N
gmehmet 1:f60eafbf009a 60 {0x3E,0x63,0x63,0x63,0x63,0x63,0x3E,0x00}, // O
gmehmet 1:f60eafbf009a 61 {0x7E,0x33,0x33,0x3E,0x30,0x30,0x78,0x00}, // P 0x50
gmehmet 1:f60eafbf009a 62 {0x3C,0x66,0x66,0x66,0x6E,0x3C,0x0E,0x00}, // Q
gmehmet 1:f60eafbf009a 63 {0x7E,0x33,0x33,0x3E,0x36,0x33,0x73,0x00}, // R
gmehmet 1:f60eafbf009a 64 {0x3C,0x66,0x30,0x18,0x0C,0x66,0x3C,0x00}, // S
gmehmet 1:f60eafbf009a 65 {0x7E,0x5A,0x18,0x18,0x18,0x18,0x3C,0x00}, // T
gmehmet 1:f60eafbf009a 66 {0x66,0x66,0x66,0x66,0x66,0x66,0x7E,0x00}, // U
gmehmet 1:f60eafbf009a 67 {0x66,0x66,0x66,0x66,0x66,0x3C,0x18,0x00}, // V
gmehmet 1:f60eafbf009a 68 {0x63,0x63,0x63,0x6B,0x7F,0x77,0x63,0x00}, // W
gmehmet 1:f60eafbf009a 69 {0x63,0x63,0x36,0x1C,0x1C,0x36,0x63,0x00}, // X
gmehmet 1:f60eafbf009a 70 {0x66,0x66,0x66,0x3C,0x18,0x18,0x3C,0x00}, // Y
gmehmet 1:f60eafbf009a 71 {0x7F,0x63,0x46,0x0C,0x19,0x33,0x7F,0x00}, // Z
gmehmet 1:f60eafbf009a 72 {0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00}, // [
gmehmet 1:f60eafbf009a 73 {0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00}, // \ (back slash)
gmehmet 1:f60eafbf009a 74 {0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00}, // ]
gmehmet 1:f60eafbf009a 75 {0x08,0x1C,0x36,0x63,0x00,0x00,0x00,0x00}, // ^
gmehmet 1:f60eafbf009a 76 {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF}, // _
gmehmet 1:f60eafbf009a 77 {0x18,0x18,0x0C,0x00,0x00,0x00,0x00,0x00}, // ` 0x60
gmehmet 1:f60eafbf009a 78 {0x00,0x00,0x3C,0x06,0x3E,0x66,0x3B,0x00}, // a
gmehmet 1:f60eafbf009a 79 {0x70,0x30,0x3E,0x33,0x33,0x33,0x6E,0x00}, // b
gmehmet 1:f60eafbf009a 80 {0x00,0x00,0x3C,0x66,0x60,0x66,0x3C,0x00}, // c
gmehmet 1:f60eafbf009a 81 {0x0E,0x06,0x3E,0x66,0x66,0x66,0x3B,0x00}, // d
gmehmet 1:f60eafbf009a 82 {0x00,0x00,0x3C,0x66,0x7E,0x60,0x3C,0x00}, // e
gmehmet 1:f60eafbf009a 83 {0x1C,0x36,0x30,0x78,0x30,0x30,0x78,0x00}, // f
gmehmet 1:f60eafbf009a 84 {0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x7C}, // g
gmehmet 1:f60eafbf009a 85 {0x70,0x30,0x36,0x3B,0x33,0x33,0x73,0x00}, // h
gmehmet 1:f60eafbf009a 86 {0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00}, // i
gmehmet 1:f60eafbf009a 87 {0x06,0x00,0x06,0x06,0x06,0x66,0x66,0x3C}, // j
gmehmet 1:f60eafbf009a 88 {0x70,0x30,0x33,0x36,0x3C,0x36,0x73,0x00}, // k
gmehmet 1:f60eafbf009a 89 {0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00}, // l
gmehmet 1:f60eafbf009a 90 {0x00,0x00,0x66,0x7F,0x7F,0x6B,0x63,0x00}, // m
gmehmet 1:f60eafbf009a 91 {0x00,0x00,0x7C,0x66,0x66,0x66,0x66,0x00}, // n
gmehmet 1:f60eafbf009a 92 {0x00,0x00,0x3C,0x66,0x66,0x66,0x3C,0x00}, // o
gmehmet 1:f60eafbf009a 93 {0x00,0x00,0x6E,0x33,0x33,0x3E,0x30,0x78}, // p
gmehmet 1:f60eafbf009a 94 {0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x0F}, // q
gmehmet 1:f60eafbf009a 95 {0x00,0x00,0x6E,0x3B,0x33,0x30,0x78,0x00}, // r
gmehmet 1:f60eafbf009a 96 {0x00,0x00,0x3E,0x60,0x3C,0x06,0x7C,0x00}, // s
gmehmet 1:f60eafbf009a 97 {0x08,0x18,0x3E,0x18,0x18,0x1A,0x0C,0x00}, // t
gmehmet 1:f60eafbf009a 98 {0x00,0x00,0x66,0x66,0x66,0x66,0x3B,0x00}, // u
gmehmet 1:f60eafbf009a 99 {0x00,0x00,0x66,0x66,0x66,0x3C,0x18,0x00}, // v
gmehmet 1:f60eafbf009a 100 {0x00,0x00,0x63,0x6B,0x7F,0x7F,0x36,0x00}, // w
gmehmet 1:f60eafbf009a 101 {0x00,0x00,0x63,0x36,0x1C,0x36,0x63,0x00}, // x
gmehmet 1:f60eafbf009a 102 {0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x7C}, // y
gmehmet 1:f60eafbf009a 103 {0x00,0x00,0x7E,0x4C,0x18,0x32,0x7E,0x00}, // z
gmehmet 1:f60eafbf009a 104 {0x0E,0x18,0x18,0x70,0x18,0x18,0x0E,0x00}, // {
gmehmet 1:f60eafbf009a 105 {0x0C,0x0C,0x0C,0x00,0x0C,0x0C,0x0C,0x00}, // |
gmehmet 1:f60eafbf009a 106 {0x70,0x18,0x18,0x0E,0x18,0x18,0x70,0x00}, // }
gmehmet 1:f60eafbf009a 107 {0x3B,0x6E,0x00,0x00,0x00,0x00,0x00,0x00}, // ~
gmehmet 1:f60eafbf009a 108 {0x1C,0x36,0x36,0x1C,0x00,0x00,0x00,0x00}}; // DEL
gmehmet 1:f60eafbf009a 109
gmehmet 1:f60eafbf009a 110 GraphicsDisplay::GraphicsDisplay(const char *name):TextDisplay(name) {
gmehmet 1:f60eafbf009a 111 foreground((uint16_t)Black);
gmehmet 1:f60eafbf009a 112 background((uint16_t)White);
gmehmet 1:f60eafbf009a 113 // current pixel location
gmehmet 1:f60eafbf009a 114 _x = 0;
gmehmet 1:f60eafbf009a 115 _y = 0;
gmehmet 1:f60eafbf009a 116 // window settings
gmehmet 1:f60eafbf009a 117 _x1 = 0;
gmehmet 1:f60eafbf009a 118 _x2 = 0;
gmehmet 1:f60eafbf009a 119 _y1 = 0;
gmehmet 1:f60eafbf009a 120 _y2 = 0;
gmehmet 1:f60eafbf009a 121 }
gmehmet 1:f60eafbf009a 122
gmehmet 1:f60eafbf009a 123 void GraphicsDisplay::character(int column, int row, int value) {
gmehmet 1:f60eafbf009a 124 if(externalfont){ // send external font
gmehmet 1:f60eafbf009a 125 unsigned int hor,vert,offset,bpl,j,i,b;
gmehmet 1:f60eafbf009a 126 const unsigned char* sign;
gmehmet 1:f60eafbf009a 127 unsigned char z,w;
gmehmet 1:f60eafbf009a 128 if ((value < 31) || (value > 127)) return; // test char range
gmehmet 1:f60eafbf009a 129 // read font parameter from start of array
gmehmet 1:f60eafbf009a 130 offset = font[0]; // bytes / char
gmehmet 1:f60eafbf009a 131 hor = font[1]; // get hor size of font
gmehmet 1:f60eafbf009a 132 vert = font[2]; // get vert size of font
gmehmet 1:f60eafbf009a 133 bpl = font[3]; // bytes per line
gmehmet 1:f60eafbf009a 134 if (char_x + hor > width()) {
gmehmet 1:f60eafbf009a 135 char_x = 0;
gmehmet 1:f60eafbf009a 136 char_y = char_y + vert;
gmehmet 1:f60eafbf009a 137 if (char_y >= height() - font[2]) {
gmehmet 1:f60eafbf009a 138 char_y = 0;
gmehmet 1:f60eafbf009a 139 }
gmehmet 1:f60eafbf009a 140 }
gmehmet 1:f60eafbf009a 141 window(char_x, char_y,hor,vert); // char box
gmehmet 1:f60eafbf009a 142 sign = &font[((value -32) * offset) + 4]; // start of char bitmap
gmehmet 1:f60eafbf009a 143 w = sign[0]; // width of actual char
gmehmet 1:f60eafbf009a 144 for (j=0; j<vert; j++) { // vert line
gmehmet 1:f60eafbf009a 145 for (i=0; i<hor; i++) { // horz line
gmehmet 1:f60eafbf009a 146 z = sign[bpl * i + ((j & 0xF8) >> 3)+1];
gmehmet 1:f60eafbf009a 147 b = 1 << (j & 0x07);
gmehmet 1:f60eafbf009a 148 if (( z & b ) == 0x00) {
gmehmet 1:f60eafbf009a 149 putp(_foreground);
gmehmet 1:f60eafbf009a 150 }
gmehmet 1:f60eafbf009a 151 else {
gmehmet 1:f60eafbf009a 152 putp(_background);
gmehmet 1:f60eafbf009a 153 }
gmehmet 1:f60eafbf009a 154 }
gmehmet 1:f60eafbf009a 155 }
gmehmet 1:f60eafbf009a 156 if ((w + 2) < hor) { // x offset to next char
gmehmet 1:f60eafbf009a 157 char_x += w + 2;
gmehmet 1:f60eafbf009a 158 }
gmehmet 1:f60eafbf009a 159 else char_x += hor;
gmehmet 1:f60eafbf009a 160 }
gmehmet 1:f60eafbf009a 161 // send default font
gmehmet 1:f60eafbf009a 162 else {
gmehmet 1:f60eafbf009a 163 blitbit(column * 8, row * 8, 8, 8, (char*)&(FONT8x8[value - 0x1F][0]));
gmehmet 1:f60eafbf009a 164 }
gmehmet 1:f60eafbf009a 165 }
gmehmet 1:f60eafbf009a 166
gmehmet 1:f60eafbf009a 167 void GraphicsDisplay::window(int x, int y, int w, int h) {
gmehmet 1:f60eafbf009a 168 // current pixel location
gmehmet 1:f60eafbf009a 169 _x = x;
gmehmet 1:f60eafbf009a 170 _y = y;
gmehmet 1:f60eafbf009a 171 // window settings
gmehmet 1:f60eafbf009a 172 _x1 = x;
gmehmet 1:f60eafbf009a 173 _x2 = x + w - 1;
gmehmet 1:f60eafbf009a 174 _y1 = y;
gmehmet 1:f60eafbf009a 175 _y2 = y + h - 1;
gmehmet 1:f60eafbf009a 176 }
gmehmet 1:f60eafbf009a 177
gmehmet 1:f60eafbf009a 178 void GraphicsDisplay::putp(int colour) {
gmehmet 1:f60eafbf009a 179 // put pixel at current pixel location
gmehmet 1:f60eafbf009a 180 pixel(_x, _y, colour);
gmehmet 1:f60eafbf009a 181 // update pixel location based on window settings
gmehmet 1:f60eafbf009a 182 _x++;
gmehmet 1:f60eafbf009a 183 if(_x > _x2) {
gmehmet 1:f60eafbf009a 184 _x = _x1;
gmehmet 1:f60eafbf009a 185 _y++;
gmehmet 1:f60eafbf009a 186 if(_y > _y2) {
gmehmet 1:f60eafbf009a 187 _y = _y1;
gmehmet 1:f60eafbf009a 188 }
gmehmet 1:f60eafbf009a 189 }
gmehmet 1:f60eafbf009a 190 }
gmehmet 1:f60eafbf009a 191
gmehmet 1:f60eafbf009a 192 void GraphicsDisplay::rect(int x0, int y0, int x1, int y1, int color) {
gmehmet 1:f60eafbf009a 193 if (x1 > x0) hline(x0,x1,y0,color);
gmehmet 1:f60eafbf009a 194 else hline(x1,x0,y0,color);
gmehmet 1:f60eafbf009a 195 if (y1 > y0) vline(x0,y0,y1,color);
gmehmet 1:f60eafbf009a 196 else vline(x0,y1,y0,color);
gmehmet 1:f60eafbf009a 197 if (x1 > x0) hline(x0,x1,y1,color);
gmehmet 1:f60eafbf009a 198 else hline(x1,x0,y1,color);
gmehmet 1:f60eafbf009a 199 if (y1 > y0) vline(x1,y0,y1,color);
gmehmet 1:f60eafbf009a 200 else vline(x1,y1,y0,color);
gmehmet 1:f60eafbf009a 201 return;
gmehmet 1:f60eafbf009a 202 }
gmehmet 1:f60eafbf009a 203
gmehmet 1:f60eafbf009a 204 void GraphicsDisplay::fillrect(int x0, int y0, int w, int h, int colour) {
gmehmet 1:f60eafbf009a 205 unsigned long int index=0;
gmehmet 1:f60eafbf009a 206 if (w < 0) {
gmehmet 1:f60eafbf009a 207 x0 = x0 + w;
gmehmet 1:f60eafbf009a 208 w = -w;
gmehmet 1:f60eafbf009a 209 }
gmehmet 1:f60eafbf009a 210 if (h < 0) {
gmehmet 1:f60eafbf009a 211 y0 = y0 + h;
gmehmet 1:f60eafbf009a 212 h = -h;
gmehmet 1:f60eafbf009a 213 }
gmehmet 1:f60eafbf009a 214 window(x0,y0,w,h);
gmehmet 1:f60eafbf009a 215 int num = h*w;
gmehmet 1:f60eafbf009a 216 for( index = 0; index<num; index++ ) {
gmehmet 1:f60eafbf009a 217 putp(colour);
gmehmet 1:f60eafbf009a 218 }
gmehmet 1:f60eafbf009a 219 return;
gmehmet 1:f60eafbf009a 220 }
gmehmet 1:f60eafbf009a 221
gmehmet 1:f60eafbf009a 222 void GraphicsDisplay::fill(int x, int y, int w, int h, int colour) {
gmehmet 1:f60eafbf009a 223 fillrect(x, y, w, h, colour);
gmehmet 1:f60eafbf009a 224 }
gmehmet 1:f60eafbf009a 225
gmehmet 1:f60eafbf009a 226 void GraphicsDisplay::circle(int x, int y, int r,int colour){
gmehmet 1:f60eafbf009a 227 int ce = -r;
gmehmet 1:f60eafbf009a 228 int cx = r;
gmehmet 1:f60eafbf009a 229 int cy = 0;
gmehmet 1:f60eafbf009a 230 while(cx >= cy){
gmehmet 1:f60eafbf009a 231 pixel(x+cx,y+cy,colour);
gmehmet 1:f60eafbf009a 232 pixel(x-cx,y-cy,colour);
gmehmet 1:f60eafbf009a 233 pixel(x-cx,y+cy,colour);
gmehmet 1:f60eafbf009a 234 pixel(x+cx,y-cy,colour);
gmehmet 1:f60eafbf009a 235 pixel(x+cy,y+cx,colour);
gmehmet 1:f60eafbf009a 236 pixel(x-cy,y+cx,colour);
gmehmet 1:f60eafbf009a 237 pixel(x-cy,y-cx,colour);
gmehmet 1:f60eafbf009a 238 pixel(x+cy,y-cx,colour);
gmehmet 1:f60eafbf009a 239 ce += 2*cy++ + 1;
gmehmet 1:f60eafbf009a 240 if(ce >= 0){
gmehmet 1:f60eafbf009a 241 ce -= 2*cx---1;
gmehmet 1:f60eafbf009a 242 }
gmehmet 1:f60eafbf009a 243
gmehmet 1:f60eafbf009a 244 }
gmehmet 1:f60eafbf009a 245
gmehmet 1:f60eafbf009a 246 }
gmehmet 1:f60eafbf009a 247
gmehmet 1:f60eafbf009a 248 // To draw circle set a and b to the same values
gmehmet 1:f60eafbf009a 249 void GraphicsDisplay::ellipse(int xc, int yc, int a, int b, unsigned int colour)
gmehmet 1:f60eafbf009a 250 {
gmehmet 1:f60eafbf009a 251 /* e(x,y) = b^2*x^2 + a^2*y^2 - a^2*b^2 */
gmehmet 1:f60eafbf009a 252 int x = 0, y = b;
gmehmet 1:f60eafbf009a 253 long a2 = (long)a*a, b2 = (long)b*b;
gmehmet 1:f60eafbf009a 254 long crit1 = -(a2/4 + a%2 + b2);
gmehmet 1:f60eafbf009a 255 long crit2 = -(b2/4 + b%2 + a2);
gmehmet 1:f60eafbf009a 256 long crit3 = -(b2/4 + b%2);
gmehmet 1:f60eafbf009a 257 long t = -a2*y; // e(x+1/2,y-1/2) - (a^2+b^2)/4
gmehmet 1:f60eafbf009a 258 long dxt = 2*b2*x, dyt = -2*a2*y;
gmehmet 1:f60eafbf009a 259 long d2xt = 2*b2, d2yt = 2*a2;
gmehmet 1:f60eafbf009a 260
gmehmet 1:f60eafbf009a 261 while (y>=0 && x<=a) {
gmehmet 1:f60eafbf009a 262 pixel(xc+x, yc+y, colour);
gmehmet 1:f60eafbf009a 263 if (x!=0 || y!=0)
gmehmet 1:f60eafbf009a 264 pixel(xc-x, yc-y, colour);
gmehmet 1:f60eafbf009a 265 if (x!=0 && y!=0) {
gmehmet 1:f60eafbf009a 266 pixel(xc+x, yc-y, colour);
gmehmet 1:f60eafbf009a 267 pixel(xc-x, yc+y, colour);
gmehmet 1:f60eafbf009a 268 }
gmehmet 1:f60eafbf009a 269 if (t + b2*x <= crit1 || // e(x+1,y-1/2) <= 0
gmehmet 1:f60eafbf009a 270 t + a2*y <= crit3) // e(x+1/2,y) <= 0
gmehmet 1:f60eafbf009a 271 incx();
gmehmet 1:f60eafbf009a 272 else if (t - a2*y > crit2) // e(x+1/2,y-1) > 0
gmehmet 1:f60eafbf009a 273 incy();
gmehmet 1:f60eafbf009a 274 else {
gmehmet 1:f60eafbf009a 275 incx();
gmehmet 1:f60eafbf009a 276 incy();
gmehmet 1:f60eafbf009a 277 }
gmehmet 1:f60eafbf009a 278 }
gmehmet 1:f60eafbf009a 279 }
gmehmet 1:f60eafbf009a 280 // To draw circle set a and b to the same values
gmehmet 1:f60eafbf009a 281 void GraphicsDisplay::fillellipse(int xc, int yc, int a, int b, unsigned int colour)
gmehmet 1:f60eafbf009a 282 {
gmehmet 1:f60eafbf009a 283 /* e(x,y) = b^2*x^2 + a^2*y^2 - a^2*b^2 */
gmehmet 1:f60eafbf009a 284 int x = 0, y = b;
gmehmet 1:f60eafbf009a 285 int rx = x, ry = y;
gmehmet 1:f60eafbf009a 286 unsigned int width = 1;
gmehmet 1:f60eafbf009a 287 unsigned int height = 1;
gmehmet 1:f60eafbf009a 288 long a2 = (long)a*a, b2 = (long)b*b;
gmehmet 1:f60eafbf009a 289 long crit1 = -(a2/4 + a%2 + b2);
gmehmet 1:f60eafbf009a 290 long crit2 = -(b2/4 + b%2 + a2);
gmehmet 1:f60eafbf009a 291 long crit3 = -(b2/4 + b%2);
gmehmet 1:f60eafbf009a 292 long t = -a2*y; // e(x+1/2,y-1/2) - (a^2+b^2)/4
gmehmet 1:f60eafbf009a 293 long dxt = 2*b2*x, dyt = -2*a2*y;
gmehmet 1:f60eafbf009a 294 long d2xt = 2*b2, d2yt = 2*a2;
gmehmet 1:f60eafbf009a 295 if (b == 0) {
gmehmet 1:f60eafbf009a 296 fillrect(xc-a, yc, 2*a+1, 1, colour);
gmehmet 1:f60eafbf009a 297 return;
gmehmet 1:f60eafbf009a 298 }
gmehmet 1:f60eafbf009a 299 while (y>=0 && x<=a) {
gmehmet 1:f60eafbf009a 300 if (t + b2*x <= crit1 || // e(x+1,y-1/2) <= 0
gmehmet 1:f60eafbf009a 301 t + a2*y <= crit3) { // e(x+1/2,y) <= 0
gmehmet 1:f60eafbf009a 302 if (height == 1)
gmehmet 1:f60eafbf009a 303 ; // draw nothing
gmehmet 1:f60eafbf009a 304 else if (ry*2+1 > (height-1)*2) {
gmehmet 1:f60eafbf009a 305 fillrect(xc-rx, yc-ry, width, height-1, colour);
gmehmet 1:f60eafbf009a 306 fillrect(xc-rx, yc+ry+1, width, 1-height, colour);
gmehmet 1:f60eafbf009a 307 ry -= height-1;
gmehmet 1:f60eafbf009a 308 height = 1;
gmehmet 1:f60eafbf009a 309 } else {
gmehmet 1:f60eafbf009a 310 fillrect(xc-rx, yc-ry, width, ry*2+1, colour);
gmehmet 1:f60eafbf009a 311 ry -= ry;
gmehmet 1:f60eafbf009a 312 height = 1;
gmehmet 1:f60eafbf009a 313 }
gmehmet 1:f60eafbf009a 314 incx();
gmehmet 1:f60eafbf009a 315 rx++;
gmehmet 1:f60eafbf009a 316 width += 2;
gmehmet 1:f60eafbf009a 317 } else if (t - a2*y > crit2) { // e(x+1/2,y-1) > 0
gmehmet 1:f60eafbf009a 318 incy();
gmehmet 1:f60eafbf009a 319 height++;
gmehmet 1:f60eafbf009a 320 } else {
gmehmet 1:f60eafbf009a 321 if (ry*2+1 > height*2) {
gmehmet 1:f60eafbf009a 322 fillrect(xc-rx, yc-ry, width, height, colour);
gmehmet 1:f60eafbf009a 323 fillrect(xc-rx, yc+ry+1, width, -height, colour);
gmehmet 1:f60eafbf009a 324 } else {
gmehmet 1:f60eafbf009a 325 fillrect(xc-rx, yc-ry, width, ry*2+1, colour);
gmehmet 1:f60eafbf009a 326 }
gmehmet 1:f60eafbf009a 327 incx();
gmehmet 1:f60eafbf009a 328 incy();
gmehmet 1:f60eafbf009a 329 rx++;
gmehmet 1:f60eafbf009a 330 width += 2;
gmehmet 1:f60eafbf009a 331 ry -= height;
gmehmet 1:f60eafbf009a 332 height = 1;
gmehmet 1:f60eafbf009a 333 }
gmehmet 1:f60eafbf009a 334 }
gmehmet 1:f60eafbf009a 335 if (ry > height) {
gmehmet 1:f60eafbf009a 336 fillrect(xc-rx, yc-ry, width, height, colour);
gmehmet 1:f60eafbf009a 337 fillrect(xc-rx, yc+ry+1, width, -height, colour);
gmehmet 1:f60eafbf009a 338 } else {
gmehmet 1:f60eafbf009a 339 fillrect(xc-rx, yc-ry, width, ry*2+1, colour);
gmehmet 1:f60eafbf009a 340 }
gmehmet 1:f60eafbf009a 341 }
gmehmet 1:f60eafbf009a 342
gmehmet 1:f60eafbf009a 343
gmehmet 1:f60eafbf009a 344 void GraphicsDisplay::line(int x0, int y0, int x1, int y1, int colour) {
gmehmet 1:f60eafbf009a 345 //window(x0, y, w, h);
gmehmet 1:f60eafbf009a 346 int dx = 0, dy = 0;
gmehmet 1:f60eafbf009a 347 int dx_sym = 0, dy_sym = 0;
gmehmet 1:f60eafbf009a 348 int dx_x2 = 0, dy_x2 = 0;
gmehmet 1:f60eafbf009a 349 int di = 0;
gmehmet 1:f60eafbf009a 350 dx = x1-x0;
gmehmet 1:f60eafbf009a 351 dy = y1-y0;
gmehmet 1:f60eafbf009a 352
gmehmet 1:f60eafbf009a 353 if (dx == 0) { /* vertical line */
gmehmet 1:f60eafbf009a 354 if (y1 > y0) vline(x0,y0,y1,colour);
gmehmet 1:f60eafbf009a 355 else vline(x0,y1,y0,colour);
gmehmet 1:f60eafbf009a 356 return;
gmehmet 1:f60eafbf009a 357 }
gmehmet 1:f60eafbf009a 358 if (dx > 0) {
gmehmet 1:f60eafbf009a 359 dx_sym = 1;
gmehmet 1:f60eafbf009a 360 } else {
gmehmet 1:f60eafbf009a 361 dx_sym = -1;
gmehmet 1:f60eafbf009a 362 }
gmehmet 1:f60eafbf009a 363 if (dy == 0) { /* horizontal line */
gmehmet 1:f60eafbf009a 364 if (x1 > x0) hline(x0,x1,y0,colour);
gmehmet 1:f60eafbf009a 365 else hline(x1,x0,y0,colour);
gmehmet 1:f60eafbf009a 366 return;
gmehmet 1:f60eafbf009a 367 }
gmehmet 1:f60eafbf009a 368 if (dy > 0) {
gmehmet 1:f60eafbf009a 369 dy_sym = 1;
gmehmet 1:f60eafbf009a 370 } else {
gmehmet 1:f60eafbf009a 371 dy_sym = -1;
gmehmet 1:f60eafbf009a 372 }
gmehmet 1:f60eafbf009a 373 dx = dx_sym*dx;
gmehmet 1:f60eafbf009a 374 dy = dy_sym*dy;
gmehmet 1:f60eafbf009a 375 dx_x2 = dx*2;
gmehmet 1:f60eafbf009a 376 dy_x2 = dy*2;
gmehmet 1:f60eafbf009a 377 if (dx >= dy) {
gmehmet 1:f60eafbf009a 378 di = dy_x2 - dx;
gmehmet 1:f60eafbf009a 379 while (x0 != x1) {
gmehmet 1:f60eafbf009a 380
gmehmet 1:f60eafbf009a 381 pixel(x0, y0, colour);
gmehmet 1:f60eafbf009a 382 x0 += dx_sym;
gmehmet 1:f60eafbf009a 383 if (di<0) {
gmehmet 1:f60eafbf009a 384 di += dy_x2;
gmehmet 1:f60eafbf009a 385 } else {
gmehmet 1:f60eafbf009a 386 di += dy_x2 - dx_x2;
gmehmet 1:f60eafbf009a 387 y0 += dy_sym;
gmehmet 1:f60eafbf009a 388 }
gmehmet 1:f60eafbf009a 389 }
gmehmet 1:f60eafbf009a 390 pixel(x0, y0, colour);
gmehmet 1:f60eafbf009a 391 } else {
gmehmet 1:f60eafbf009a 392 di = dx_x2 - dy;
gmehmet 1:f60eafbf009a 393 while (y0 != y1) {
gmehmet 1:f60eafbf009a 394 pixel(x0, y0, colour);
gmehmet 1:f60eafbf009a 395 y0 += dy_sym;
gmehmet 1:f60eafbf009a 396 if (di < 0) {
gmehmet 1:f60eafbf009a 397 di += dx_x2;
gmehmet 1:f60eafbf009a 398 } else {
gmehmet 1:f60eafbf009a 399 di += dx_x2 - dy_x2;
gmehmet 1:f60eafbf009a 400 x0 += dx_sym;
gmehmet 1:f60eafbf009a 401 }
gmehmet 1:f60eafbf009a 402 }
gmehmet 1:f60eafbf009a 403 pixel(x0, y0, colour);
gmehmet 1:f60eafbf009a 404 }
gmehmet 1:f60eafbf009a 405 return;
gmehmet 1:f60eafbf009a 406 }
gmehmet 1:f60eafbf009a 407
gmehmet 1:f60eafbf009a 408 void GraphicsDisplay::hline(int x0, int x1, int y, int colour) {
gmehmet 1:f60eafbf009a 409 int w;
gmehmet 1:f60eafbf009a 410 w = x1 - x0 + 1;
gmehmet 1:f60eafbf009a 411 window(x0,y,w,1);
gmehmet 1:f60eafbf009a 412 for (int x=0; x<w; x++) {
gmehmet 1:f60eafbf009a 413 putp(colour);
gmehmet 1:f60eafbf009a 414 }
gmehmet 1:f60eafbf009a 415 return;
gmehmet 1:f60eafbf009a 416 }
gmehmet 1:f60eafbf009a 417
gmehmet 1:f60eafbf009a 418 void GraphicsDisplay::vline(int x, int y0, int y1, int colour) {
gmehmet 1:f60eafbf009a 419 int h;
gmehmet 1:f60eafbf009a 420 h = y1 - y0 + 1;
gmehmet 1:f60eafbf009a 421 window(x,y0,1,h);
gmehmet 1:f60eafbf009a 422 for (int y=0; y<h; y++) {
gmehmet 1:f60eafbf009a 423 putp(colour);
gmehmet 1:f60eafbf009a 424 }
gmehmet 1:f60eafbf009a 425 return;
gmehmet 1:f60eafbf009a 426 }
gmehmet 1:f60eafbf009a 427
gmehmet 1:f60eafbf009a 428 void GraphicsDisplay::cls() {
gmehmet 1:f60eafbf009a 429 fill(0, 0, width(), height(), _background);
gmehmet 1:f60eafbf009a 430 }
gmehmet 1:f60eafbf009a 431
gmehmet 1:f60eafbf009a 432 void GraphicsDisplay::blit(int x, int y, int w, int h, const int *colour) {
gmehmet 1:f60eafbf009a 433 window(x, y, w, h);
gmehmet 1:f60eafbf009a 434 for(int i=0; i<w*h; i++) {
gmehmet 1:f60eafbf009a 435 putp(colour[i]);
gmehmet 1:f60eafbf009a 436 }
gmehmet 1:f60eafbf009a 437 }
gmehmet 1:f60eafbf009a 438
gmehmet 1:f60eafbf009a 439 void GraphicsDisplay::blitbit(int x, int y, int w, int h, const char* colour) {
gmehmet 1:f60eafbf009a 440 window(x, y, w, h);
gmehmet 1:f60eafbf009a 441 for(int i = 0; i < w*h; i++) {
gmehmet 1:f60eafbf009a 442 char byte = colour[i >> 3];
gmehmet 1:f60eafbf009a 443 int offset = i & 0x7;
gmehmet 1:f60eafbf009a 444 int c = ((byte << (offset)) & 0x80) ? _foreground : _background;
gmehmet 1:f60eafbf009a 445 putp(c);
gmehmet 1:f60eafbf009a 446 }
gmehmet 1:f60eafbf009a 447 }
gmehmet 1:f60eafbf009a 448
gmehmet 1:f60eafbf009a 449 int GraphicsDisplay::columns() {
gmehmet 1:f60eafbf009a 450 return width() / 8;
gmehmet 1:f60eafbf009a 451 }
gmehmet 1:f60eafbf009a 452
gmehmet 1:f60eafbf009a 453 int GraphicsDisplay::rows() {
gmehmet 1:f60eafbf009a 454 return height() / 8;
gmehmet 1:f60eafbf009a 455 }
gmehmet 1:f60eafbf009a 456