EmbeddedArtists AB / Mbed 2 deprecated app_lcdboard_demo_cube

Example for the LPC4088 QSB Base Board

Dependencies:   EALib mbed

Graphics.cpp@3:15f457b3bdbd, 2014-04-09 (annotated)

Committer:
embeddedartists
Date:
Wed Apr 09 09:44:58 2014 +0000
Revision:
3:15f457b3bdbd
Parent:
0:a771927a62fd 
Updated to latest version of EALib

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:a771927a62fd 1
embeddedartists 0:a771927a62fd 2 #include "mbed.h"
embeddedartists 0:a771927a62fd 3 #include "Graphics.h"
embeddedartists 0:a771927a62fd 4
embeddedartists 0:a771927a62fd 5
embeddedartists 0:a771927a62fd 6 Graphics::Graphics(uint16_t *pFrmBuf, uint16_t dispWidth, uint16_t dispHeight)
embeddedartists 0:a771927a62fd 7 {
embeddedartists 0:a771927a62fd 8 this->windowX = dispWidth;
embeddedartists 0:a771927a62fd 9 this->windowY = dispHeight;
embeddedartists 0:a771927a62fd 10 this->pFrmBuf = pFrmBuf;
embeddedartists 0:a771927a62fd 11 }
embeddedartists 0:a771927a62fd 12
embeddedartists 0:a771927a62fd 13 void Graphics::setFrameBuffer( uint16_t *pFrmBuf )
embeddedartists 0:a771927a62fd 14 {
embeddedartists 0:a771927a62fd 15 this->pFrmBuf = pFrmBuf;
embeddedartists 0:a771927a62fd 16 }
embeddedartists 0:a771927a62fd 17
embeddedartists 0:a771927a62fd 18 int32_t Graphics::abs(int32_t v1) const
embeddedartists 0:a771927a62fd 19 {
embeddedartists 0:a771927a62fd 20 if (v1 > 0)
embeddedartists 0:a771927a62fd 21 return v1;
embeddedartists 0:a771927a62fd 22
embeddedartists 0:a771927a62fd 23 return -v1;
embeddedartists 0:a771927a62fd 24 }
embeddedartists 0:a771927a62fd 25
embeddedartists 0:a771927a62fd 26 /***********************************************************************
embeddedartists 0:a771927a62fd 27 *
embeddedartists 0:a771927a62fd 28 * Function: swim_put_line_raw
embeddedartists 0:a771927a62fd 29 *
embeddedartists 0:a771927a62fd 30 * Purpose: Draw a line on the physical display
embeddedartists 0:a771927a62fd 31 *
embeddedartists 0:a771927a62fd 32 * Processing:
embeddedartists 0:a771927a62fd 33 * See function.
embeddedartists 0:a771927a62fd 34 *
embeddedartists 0:a771927a62fd 35 * Parameters:
embeddedartists 0:a771927a62fd 36 * win : Window identifier
embeddedartists 0:a771927a62fd 37 * x1 : Physical X position of X line start
embeddedartists 0:a771927a62fd 38 * y1 : Physical Y position of Y line start
embeddedartists 0:a771927a62fd 39 * x2 : Physical X position of X line end
embeddedartists 0:a771927a62fd 40 * y2 : Physical Y position of Y line end
embeddedartists 0:a771927a62fd 41 *
embeddedartists 0:a771927a62fd 42 * Outputs: None
embeddedartists 0:a771927a62fd 43 *
embeddedartists 0:a771927a62fd 44 * Returns: Nothing
embeddedartists 0:a771927a62fd 45 *
embeddedartists 0:a771927a62fd 46 * Notes: None
embeddedartists 0:a771927a62fd 47 *
embeddedartists 0:a771927a62fd 48 **********************************************************************/
embeddedartists 0:a771927a62fd 49 void Graphics::put_line(int32_t x1, int32_t y1, int32_t x2, int32_t y2, int16_t color)
embeddedartists 0:a771927a62fd 50 {
embeddedartists 0:a771927a62fd 51 int32_t e2, sx, sy, dx, dy, err;
embeddedartists 0:a771927a62fd 52
embeddedartists 0:a771927a62fd 53 /* calculate delta_x and delta_y */
embeddedartists 0:a771927a62fd 54 dx = abs(x2 - x1);
embeddedartists 0:a771927a62fd 55 dy = abs(y2 - y1);
embeddedartists 0:a771927a62fd 56
embeddedartists 0:a771927a62fd 57 /* set the direction for the step for both x and y, and
embeddedartists 0:a771927a62fd 58 initialize the error */
embeddedartists 0:a771927a62fd 59 if (x1 < x2)
embeddedartists 0:a771927a62fd 60 sx = 1;
embeddedartists 0:a771927a62fd 61 else
embeddedartists 0:a771927a62fd 62 sx = -1;
embeddedartists 0:a771927a62fd 63
embeddedartists 0:a771927a62fd 64 if (y1 < y2)
embeddedartists 0:a771927a62fd 65 sy = 1;
embeddedartists 0:a771927a62fd 66 else
embeddedartists 0:a771927a62fd 67 sy = -1;
embeddedartists 0:a771927a62fd 68
embeddedartists 0:a771927a62fd 69 err = dx - dy;
embeddedartists 0:a771927a62fd 70
embeddedartists 0:a771927a62fd 71 while (1)
embeddedartists 0:a771927a62fd 72 {
embeddedartists 0:a771927a62fd 73 if ((x1 >= 0) && (x1 < this->windowX) &&
embeddedartists 0:a771927a62fd 74 (y1 >= 0) && (y1 < this->windowY))
embeddedartists 0:a771927a62fd 75 this->pFrmBuf[x1 + (this->windowX*y1)] = color;
embeddedartists 0:a771927a62fd 76
embeddedartists 0:a771927a62fd 77 if ((x1 == x2) && (y1 == y2))
embeddedartists 0:a771927a62fd 78 return;
embeddedartists 0:a771927a62fd 79
embeddedartists 0:a771927a62fd 80 e2 = 2 * err;
embeddedartists 0:a771927a62fd 81 if (e2 > -dy)
embeddedartists 0:a771927a62fd 82 {
embeddedartists 0:a771927a62fd 83 err -= dy;
embeddedartists 0:a771927a62fd 84 x1 += sx;
embeddedartists 0:a771927a62fd 85 }
embeddedartists 0:a771927a62fd 86 if (e2 < dx)
embeddedartists 0:a771927a62fd 87 {
embeddedartists 0:a771927a62fd 88 err += dx;
embeddedartists 0:a771927a62fd 89 y1 += sy;
embeddedartists 0:a771927a62fd 90 }
embeddedartists 0:a771927a62fd 91 }
embeddedartists 0:a771927a62fd 92 }
embeddedartists 0:a771927a62fd 93
embeddedartists 0:a771927a62fd 94 /***********************************************************************
embeddedartists 0:a771927a62fd 95 *
embeddedartists 0:a771927a62fd 96 * Function: plot4points
embeddedartists 0:a771927a62fd 97 *
embeddedartists 0:a771927a62fd 98 * Purpose:
embeddedartists 0:a771927a62fd 99 *
embeddedartists 0:a771927a62fd 100 * Processing:
embeddedartists 0:a771927a62fd 101 * See function.
embeddedartists 0:a771927a62fd 102 *
embeddedartists 0:a771927a62fd 103 * Parameters:
embeddedartists 0:a771927a62fd 104 * win : Window identifier
embeddedartists 0:a771927a62fd 105 * cx :
embeddedartists 0:a771927a62fd 106 * cy :
embeddedartists 0:a771927a62fd 107 * x :
embeddedartists 0:a771927a62fd 108 * y :
embeddedartists 0:a771927a62fd 109 * Filled :
embeddedartists 0:a771927a62fd 110 *
embeddedartists 0:a771927a62fd 111 * Outputs: None
embeddedartists 0:a771927a62fd 112 *
embeddedartists 0:a771927a62fd 113 * Returns: Nothing
embeddedartists 0:a771927a62fd 114 *
embeddedartists 0:a771927a62fd 115 * Notes: None
embeddedartists 0:a771927a62fd 116 *
embeddedartists 0:a771927a62fd 117 **********************************************************************/
embeddedartists 0:a771927a62fd 118 void Graphics::plot4points( int32_t cx, int32_t cy, int32_t x, int32_t y, int16_t color, int32_t Filled )
embeddedartists 0:a771927a62fd 119 {
embeddedartists 0:a771927a62fd 120 int16_t x0, x1, y0, y1;
embeddedartists 0:a771927a62fd 121
embeddedartists 0:a771927a62fd 122 y0 = cy + y;
embeddedartists 0:a771927a62fd 123 y1 = cy - y;
embeddedartists 0:a771927a62fd 124 if( Filled )
embeddedartists 0:a771927a62fd 125 {
embeddedartists 0:a771927a62fd 126 for( x0=cx - x; x0<=cx + x; x0++ )
embeddedartists 0:a771927a62fd 127 {
embeddedartists 0:a771927a62fd 128 if ((x0>=0) && (x0<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:a771927a62fd 129 this->pFrmBuf[x0 + (this->windowX*y0)] = color;
embeddedartists 0:a771927a62fd 130 if ((x0>=0) && (x0<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:a771927a62fd 131 this->pFrmBuf[x0 + (this->windowX*y1)] = color;
embeddedartists 0:a771927a62fd 132 }
embeddedartists 0:a771927a62fd 133 }
embeddedartists 0:a771927a62fd 134 else
embeddedartists 0:a771927a62fd 135 {
embeddedartists 0:a771927a62fd 136 x0 = cx + x;
embeddedartists 0:a771927a62fd 137 x1 = cx - x;
embeddedartists 0:a771927a62fd 138 if ((x0>=0) && (x0<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:a771927a62fd 139 this->pFrmBuf[x0 + (this->windowX*y0)] = color;
embeddedartists 0:a771927a62fd 140 if ((x != 0) &&
embeddedartists 0:a771927a62fd 141 (x1>=0) && (x1<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:a771927a62fd 142 this->pFrmBuf[x1 + (this->windowX*y0)] = color;
embeddedartists 0:a771927a62fd 143 if ((y != 0) &&
embeddedartists 0:a771927a62fd 144 (x0>=0) && (x0<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:a771927a62fd 145 this->pFrmBuf[x0 + (this->windowX*y1)] = color;
embeddedartists 0:a771927a62fd 146 if ((x != 0 && y != 0) &&
embeddedartists 0:a771927a62fd 147 (x1>=0) && (x1<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:a771927a62fd 148 this->pFrmBuf[x1 + (this->windowX*y1)] = color;
embeddedartists 0:a771927a62fd 149 }
embeddedartists 0:a771927a62fd 150 }
embeddedartists 0:a771927a62fd 151
embeddedartists 0:a771927a62fd 152 /***********************************************************************
embeddedartists 0:a771927a62fd 153 *
embeddedartists 0:a771927a62fd 154 * Function: plot8points
embeddedartists 0:a771927a62fd 155 *
embeddedartists 0:a771927a62fd 156 * Purpose:
embeddedartists 0:a771927a62fd 157 *
embeddedartists 0:a771927a62fd 158 * Processing:
embeddedartists 0:a771927a62fd 159 * See function.
embeddedartists 0:a771927a62fd 160 *
embeddedartists 0:a771927a62fd 161 * Parameters:
embeddedartists 0:a771927a62fd 162 * win : Window identifier
embeddedartists 0:a771927a62fd 163 * cx :
embeddedartists 0:a771927a62fd 164 * cy :
embeddedartists 0:a771927a62fd 165 * x :
embeddedartists 0:a771927a62fd 166 * y :
embeddedartists 0:a771927a62fd 167 * Filled :
embeddedartists 0:a771927a62fd 168 *
embeddedartists 0:a771927a62fd 169 * Outputs: None
embeddedartists 0:a771927a62fd 170 *
embeddedartists 0:a771927a62fd 171 * Returns: Nothing
embeddedartists 0:a771927a62fd 172 *
embeddedartists 0:a771927a62fd 173 * Notes: None
embeddedartists 0:a771927a62fd 174 *
embeddedartists 0:a771927a62fd 175 **********************************************************************/
embeddedartists 0:a771927a62fd 176 void Graphics::plot8points( int32_t cx, int32_t cy, int32_t x, int32_t y, int16_t color, int32_t Filled )
embeddedartists 0:a771927a62fd 177 {
embeddedartists 0:a771927a62fd 178 plot4points( cx, cy, x, y, color, Filled );
embeddedartists 0:a771927a62fd 179 if (x != y)
embeddedartists 0:a771927a62fd 180 plot4points( cx, cy, y, x, color, Filled );
embeddedartists 0:a771927a62fd 181 }
embeddedartists 0:a771927a62fd 182
embeddedartists 0:a771927a62fd 183 /***********************************************************************
embeddedartists 0:a771927a62fd 184 *
embeddedartists 0:a771927a62fd 185 * Function: swim_put_circle
embeddedartists 0:a771927a62fd 186 *
embeddedartists 0:a771927a62fd 187 * Purpose:
embeddedartists 0:a771927a62fd 188 *
embeddedartists 0:a771927a62fd 189 * Processing:
embeddedartists 0:a771927a62fd 190 * See function.
embeddedartists 0:a771927a62fd 191 *
embeddedartists 0:a771927a62fd 192 * Parameters:
embeddedartists 0:a771927a62fd 193 * win : Window identifier
embeddedartists 0:a771927a62fd 194 * cx :
embeddedartists 0:a771927a62fd 195 * cy :
embeddedartists 0:a771927a62fd 196 * radius :
embeddedartists 0:a771927a62fd 197 * Filled :
embeddedartists 0:a771927a62fd 198 *
embeddedartists 0:a771927a62fd 199 * Outputs: None
embeddedartists 0:a771927a62fd 200 *
embeddedartists 0:a771927a62fd 201 * Returns: Nothing
embeddedartists 0:a771927a62fd 202 *
embeddedartists 0:a771927a62fd 203 * Notes: None
embeddedartists 0:a771927a62fd 204 *
embeddedartists 0:a771927a62fd 205 **********************************************************************/
embeddedartists 0:a771927a62fd 206 void Graphics::put_circle( int32_t cx, int32_t cy, int16_t color, int32_t radius, int32_t Filled )
embeddedartists 0:a771927a62fd 207 {
embeddedartists 0:a771927a62fd 208 int32_t Error = -radius;
embeddedartists 0:a771927a62fd 209 int16_t x = radius;
embeddedartists 0:a771927a62fd 210 int16_t y = 0;
embeddedartists 0:a771927a62fd 211
embeddedartists 0:a771927a62fd 212 while( x >= y )
embeddedartists 0:a771927a62fd 213 {
embeddedartists 0:a771927a62fd 214 plot8points( cx, cy, x, y, color, Filled );
embeddedartists 0:a771927a62fd 215
embeddedartists 0:a771927a62fd 216 Error += y;
embeddedartists 0:a771927a62fd 217 ++y;
embeddedartists 0:a771927a62fd 218 Error += y;
embeddedartists 0:a771927a62fd 219
embeddedartists 0:a771927a62fd 220 if( Error >= 0 )
embeddedartists 0:a771927a62fd 221 {
embeddedartists 0:a771927a62fd 222 --x;
embeddedartists 0:a771927a62fd 223 Error -= x;
embeddedartists 0:a771927a62fd 224 Error -= x;
embeddedartists 0:a771927a62fd 225 }
embeddedartists 0:a771927a62fd 226 }
embeddedartists 0:a771927a62fd 227 }
embeddedartists 0:a771927a62fd 228
embeddedartists 0:a771927a62fd 229