EmbeddedArtists AB / Mbed 2 deprecated app_lcdboard_demo_sphere

Example for the LPC4088 QSB Base Board

Dependencies:   EALib mbed

Graphics.cpp@1:1c2ea8267953, 2014-04-09 (annotated)

Committer:
embeddedartists
Date:
Wed Apr 09 10:27:13 2014 +0000
Revision:
1:1c2ea8267953
Parent:
0:4ec3f2d970da 
Updated to latest version of EALib

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:4ec3f2d970da 1
embeddedartists 0:4ec3f2d970da 2 #include "mbed.h"
embeddedartists 0:4ec3f2d970da 3 #include "Graphics.h"
embeddedartists 0:4ec3f2d970da 4
embeddedartists 0:4ec3f2d970da 5
embeddedartists 0:4ec3f2d970da 6 Graphics::Graphics(uint16_t *pFrmBuf, uint16_t dispWidth, uint16_t dispHeight)
embeddedartists 0:4ec3f2d970da 7 {
embeddedartists 0:4ec3f2d970da 8 this->windowX = dispWidth;
embeddedartists 0:4ec3f2d970da 9 this->windowY = dispHeight;
embeddedartists 0:4ec3f2d970da 10 this->pFrmBuf = pFrmBuf;
embeddedartists 0:4ec3f2d970da 11 }
embeddedartists 0:4ec3f2d970da 12
embeddedartists 0:4ec3f2d970da 13 void Graphics::setFrameBuffer( uint16_t *pFrmBuf )
embeddedartists 0:4ec3f2d970da 14 {
embeddedartists 0:4ec3f2d970da 15 this->pFrmBuf = pFrmBuf;
embeddedartists 0:4ec3f2d970da 16 }
embeddedartists 0:4ec3f2d970da 17
embeddedartists 0:4ec3f2d970da 18 int32_t Graphics::abs(int32_t v1) const
embeddedartists 0:4ec3f2d970da 19 {
embeddedartists 0:4ec3f2d970da 20 if (v1 > 0)
embeddedartists 0:4ec3f2d970da 21 return v1;
embeddedartists 0:4ec3f2d970da 22
embeddedartists 0:4ec3f2d970da 23 return -v1;
embeddedartists 0:4ec3f2d970da 24 }
embeddedartists 0:4ec3f2d970da 25
embeddedartists 0:4ec3f2d970da 26 /***********************************************************************
embeddedartists 0:4ec3f2d970da 27 *
embeddedartists 0:4ec3f2d970da 28 * Function: swim_put_line_raw
embeddedartists 0:4ec3f2d970da 29 *
embeddedartists 0:4ec3f2d970da 30 * Purpose: Draw a line on the physical display
embeddedartists 0:4ec3f2d970da 31 *
embeddedartists 0:4ec3f2d970da 32 * Processing:
embeddedartists 0:4ec3f2d970da 33 * See function.
embeddedartists 0:4ec3f2d970da 34 *
embeddedartists 0:4ec3f2d970da 35 * Parameters:
embeddedartists 0:4ec3f2d970da 36 * win : Window identifier
embeddedartists 0:4ec3f2d970da 37 * x1 : Physical X position of X line start
embeddedartists 0:4ec3f2d970da 38 * y1 : Physical Y position of Y line start
embeddedartists 0:4ec3f2d970da 39 * x2 : Physical X position of X line end
embeddedartists 0:4ec3f2d970da 40 * y2 : Physical Y position of Y line end
embeddedartists 0:4ec3f2d970da 41 *
embeddedartists 0:4ec3f2d970da 42 * Outputs: None
embeddedartists 0:4ec3f2d970da 43 *
embeddedartists 0:4ec3f2d970da 44 * Returns: Nothing
embeddedartists 0:4ec3f2d970da 45 *
embeddedartists 0:4ec3f2d970da 46 * Notes: None
embeddedartists 0:4ec3f2d970da 47 *
embeddedartists 0:4ec3f2d970da 48 **********************************************************************/
embeddedartists 0:4ec3f2d970da 49 void Graphics::put_line(int32_t x1, int32_t y1, int32_t x2, int32_t y2, int16_t color)
embeddedartists 0:4ec3f2d970da 50 {
embeddedartists 0:4ec3f2d970da 51 int32_t e2, sx, sy, dx, dy, err;
embeddedartists 0:4ec3f2d970da 52
embeddedartists 0:4ec3f2d970da 53 /* calculate delta_x and delta_y */
embeddedartists 0:4ec3f2d970da 54 dx = abs(x2 - x1);
embeddedartists 0:4ec3f2d970da 55 dy = abs(y2 - y1);
embeddedartists 0:4ec3f2d970da 56
embeddedartists 0:4ec3f2d970da 57 /* set the direction for the step for both x and y, and
embeddedartists 0:4ec3f2d970da 58 initialize the error */
embeddedartists 0:4ec3f2d970da 59 if (x1 < x2)
embeddedartists 0:4ec3f2d970da 60 sx = 1;
embeddedartists 0:4ec3f2d970da 61 else
embeddedartists 0:4ec3f2d970da 62 sx = -1;
embeddedartists 0:4ec3f2d970da 63
embeddedartists 0:4ec3f2d970da 64 if (y1 < y2)
embeddedartists 0:4ec3f2d970da 65 sy = 1;
embeddedartists 0:4ec3f2d970da 66 else
embeddedartists 0:4ec3f2d970da 67 sy = -1;
embeddedartists 0:4ec3f2d970da 68
embeddedartists 0:4ec3f2d970da 69 err = dx - dy;
embeddedartists 0:4ec3f2d970da 70
embeddedartists 0:4ec3f2d970da 71 while (1)
embeddedartists 0:4ec3f2d970da 72 {
embeddedartists 0:4ec3f2d970da 73 if ((x1 >= 0) && (x1 < this->windowX) &&
embeddedartists 0:4ec3f2d970da 74 (y1 >= 0) && (y1 < this->windowY))
embeddedartists 0:4ec3f2d970da 75 this->pFrmBuf[x1 + (this->windowX*y1)] = color;
embeddedartists 0:4ec3f2d970da 76
embeddedartists 0:4ec3f2d970da 77 if ((x1 == x2) && (y1 == y2))
embeddedartists 0:4ec3f2d970da 78 return;
embeddedartists 0:4ec3f2d970da 79
embeddedartists 0:4ec3f2d970da 80 e2 = 2 * err;
embeddedartists 0:4ec3f2d970da 81 if (e2 > -dy)
embeddedartists 0:4ec3f2d970da 82 {
embeddedartists 0:4ec3f2d970da 83 err -= dy;
embeddedartists 0:4ec3f2d970da 84 x1 += sx;
embeddedartists 0:4ec3f2d970da 85 }
embeddedartists 0:4ec3f2d970da 86 if (e2 < dx)
embeddedartists 0:4ec3f2d970da 87 {
embeddedartists 0:4ec3f2d970da 88 err += dx;
embeddedartists 0:4ec3f2d970da 89 y1 += sy;
embeddedartists 0:4ec3f2d970da 90 }
embeddedartists 0:4ec3f2d970da 91 }
embeddedartists 0:4ec3f2d970da 92 }
embeddedartists 0:4ec3f2d970da 93
embeddedartists 0:4ec3f2d970da 94 /***********************************************************************
embeddedartists 0:4ec3f2d970da 95 *
embeddedartists 0:4ec3f2d970da 96 * Function: plot4points
embeddedartists 0:4ec3f2d970da 97 *
embeddedartists 0:4ec3f2d970da 98 * Purpose:
embeddedartists 0:4ec3f2d970da 99 *
embeddedartists 0:4ec3f2d970da 100 * Processing:
embeddedartists 0:4ec3f2d970da 101 * See function.
embeddedartists 0:4ec3f2d970da 102 *
embeddedartists 0:4ec3f2d970da 103 * Parameters:
embeddedartists 0:4ec3f2d970da 104 * win : Window identifier
embeddedartists 0:4ec3f2d970da 105 * cx :
embeddedartists 0:4ec3f2d970da 106 * cy :
embeddedartists 0:4ec3f2d970da 107 * x :
embeddedartists 0:4ec3f2d970da 108 * y :
embeddedartists 0:4ec3f2d970da 109 * Filled :
embeddedartists 0:4ec3f2d970da 110 *
embeddedartists 0:4ec3f2d970da 111 * Outputs: None
embeddedartists 0:4ec3f2d970da 112 *
embeddedartists 0:4ec3f2d970da 113 * Returns: Nothing
embeddedartists 0:4ec3f2d970da 114 *
embeddedartists 0:4ec3f2d970da 115 * Notes: None
embeddedartists 0:4ec3f2d970da 116 *
embeddedartists 0:4ec3f2d970da 117 **********************************************************************/
embeddedartists 0:4ec3f2d970da 118 void Graphics::plot4points( int32_t cx, int32_t cy, int32_t x, int32_t y, int16_t color, int32_t Filled )
embeddedartists 0:4ec3f2d970da 119 {
embeddedartists 0:4ec3f2d970da 120 int16_t x0, x1, y0, y1;
embeddedartists 0:4ec3f2d970da 121
embeddedartists 0:4ec3f2d970da 122 y0 = cy + y;
embeddedartists 0:4ec3f2d970da 123 y1 = cy - y;
embeddedartists 0:4ec3f2d970da 124 if( Filled )
embeddedartists 0:4ec3f2d970da 125 {
embeddedartists 0:4ec3f2d970da 126 for( x0=cx - x; x0<=cx + x; x0++ )
embeddedartists 0:4ec3f2d970da 127 {
embeddedartists 0:4ec3f2d970da 128 if ((x0>=0) && (x0<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:4ec3f2d970da 129 this->pFrmBuf[x0 + (this->windowX*y0)] = color;
embeddedartists 0:4ec3f2d970da 130 if ((x0>=0) && (x0<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:4ec3f2d970da 131 this->pFrmBuf[x0 + (this->windowX*y1)] = color;
embeddedartists 0:4ec3f2d970da 132 }
embeddedartists 0:4ec3f2d970da 133 }
embeddedartists 0:4ec3f2d970da 134 else
embeddedartists 0:4ec3f2d970da 135 {
embeddedartists 0:4ec3f2d970da 136 x0 = cx + x;
embeddedartists 0:4ec3f2d970da 137 x1 = cx - x;
embeddedartists 0:4ec3f2d970da 138 if ((x0>=0) && (x0<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:4ec3f2d970da 139 this->pFrmBuf[x0 + (this->windowX*y0)] = color;
embeddedartists 0:4ec3f2d970da 140 if ((x != 0) &&
embeddedartists 0:4ec3f2d970da 141 (x1>=0) && (x1<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:4ec3f2d970da 142 this->pFrmBuf[x1 + (this->windowX*y0)] = color;
embeddedartists 0:4ec3f2d970da 143 if ((y != 0) &&
embeddedartists 0:4ec3f2d970da 144 (x0>=0) && (x0<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:4ec3f2d970da 145 this->pFrmBuf[x0 + (this->windowX*y1)] = color;
embeddedartists 0:4ec3f2d970da 146 if ((x != 0 && y != 0) &&
embeddedartists 0:4ec3f2d970da 147 (x1>=0) && (x1<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:4ec3f2d970da 148 this->pFrmBuf[x1 + (this->windowX*y1)] = color;
embeddedartists 0:4ec3f2d970da 149 }
embeddedartists 0:4ec3f2d970da 150 }
embeddedartists 0:4ec3f2d970da 151
embeddedartists 0:4ec3f2d970da 152 /***********************************************************************
embeddedartists 0:4ec3f2d970da 153 *
embeddedartists 0:4ec3f2d970da 154 * Function: plot8points
embeddedartists 0:4ec3f2d970da 155 *
embeddedartists 0:4ec3f2d970da 156 * Purpose:
embeddedartists 0:4ec3f2d970da 157 *
embeddedartists 0:4ec3f2d970da 158 * Processing:
embeddedartists 0:4ec3f2d970da 159 * See function.
embeddedartists 0:4ec3f2d970da 160 *
embeddedartists 0:4ec3f2d970da 161 * Parameters:
embeddedartists 0:4ec3f2d970da 162 * win : Window identifier
embeddedartists 0:4ec3f2d970da 163 * cx :
embeddedartists 0:4ec3f2d970da 164 * cy :
embeddedartists 0:4ec3f2d970da 165 * x :
embeddedartists 0:4ec3f2d970da 166 * y :
embeddedartists 0:4ec3f2d970da 167 * Filled :
embeddedartists 0:4ec3f2d970da 168 *
embeddedartists 0:4ec3f2d970da 169 * Outputs: None
embeddedartists 0:4ec3f2d970da 170 *
embeddedartists 0:4ec3f2d970da 171 * Returns: Nothing
embeddedartists 0:4ec3f2d970da 172 *
embeddedartists 0:4ec3f2d970da 173 * Notes: None
embeddedartists 0:4ec3f2d970da 174 *
embeddedartists 0:4ec3f2d970da 175 **********************************************************************/
embeddedartists 0:4ec3f2d970da 176 void Graphics::plot8points( int32_t cx, int32_t cy, int32_t x, int32_t y, int16_t color, int32_t Filled )
embeddedartists 0:4ec3f2d970da 177 {
embeddedartists 0:4ec3f2d970da 178 plot4points( cx, cy, x, y, color, Filled );
embeddedartists 0:4ec3f2d970da 179 if (x != y)
embeddedartists 0:4ec3f2d970da 180 plot4points( cx, cy, y, x, color, Filled );
embeddedartists 0:4ec3f2d970da 181 }
embeddedartists 0:4ec3f2d970da 182
embeddedartists 0:4ec3f2d970da 183 /***********************************************************************
embeddedartists 0:4ec3f2d970da 184 *
embeddedartists 0:4ec3f2d970da 185 * Function: swim_put_circle
embeddedartists 0:4ec3f2d970da 186 *
embeddedartists 0:4ec3f2d970da 187 * Purpose:
embeddedartists 0:4ec3f2d970da 188 *
embeddedartists 0:4ec3f2d970da 189 * Processing:
embeddedartists 0:4ec3f2d970da 190 * See function.
embeddedartists 0:4ec3f2d970da 191 *
embeddedartists 0:4ec3f2d970da 192 * Parameters:
embeddedartists 0:4ec3f2d970da 193 * win : Window identifier
embeddedartists 0:4ec3f2d970da 194 * cx :
embeddedartists 0:4ec3f2d970da 195 * cy :
embeddedartists 0:4ec3f2d970da 196 * radius :
embeddedartists 0:4ec3f2d970da 197 * Filled :
embeddedartists 0:4ec3f2d970da 198 *
embeddedartists 0:4ec3f2d970da 199 * Outputs: None
embeddedartists 0:4ec3f2d970da 200 *
embeddedartists 0:4ec3f2d970da 201 * Returns: Nothing
embeddedartists 0:4ec3f2d970da 202 *
embeddedartists 0:4ec3f2d970da 203 * Notes: None
embeddedartists 0:4ec3f2d970da 204 *
embeddedartists 0:4ec3f2d970da 205 **********************************************************************/
embeddedartists 0:4ec3f2d970da 206 void Graphics::put_circle( int32_t cx, int32_t cy, int16_t color, int32_t radius, int32_t Filled )
embeddedartists 0:4ec3f2d970da 207 {
embeddedartists 0:4ec3f2d970da 208 int32_t Error = -radius;
embeddedartists 0:4ec3f2d970da 209 int16_t x = radius;
embeddedartists 0:4ec3f2d970da 210 int16_t y = 0;
embeddedartists 0:4ec3f2d970da 211
embeddedartists 0:4ec3f2d970da 212 while( x >= y )
embeddedartists 0:4ec3f2d970da 213 {
embeddedartists 0:4ec3f2d970da 214 plot8points( cx, cy, x, y, color, Filled );
embeddedartists 0:4ec3f2d970da 215
embeddedartists 0:4ec3f2d970da 216 Error += y;
embeddedartists 0:4ec3f2d970da 217 ++y;
embeddedartists 0:4ec3f2d970da 218 Error += y;
embeddedartists 0:4ec3f2d970da 219
embeddedartists 0:4ec3f2d970da 220 if( Error >= 0 )
embeddedartists 0:4ec3f2d970da 221 {
embeddedartists 0:4ec3f2d970da 222 --x;
embeddedartists 0:4ec3f2d970da 223 Error -= x;
embeddedartists 0:4ec3f2d970da 224 Error -= x;
embeddedartists 0:4ec3f2d970da 225 }
embeddedartists 0:4ec3f2d970da 226 }
embeddedartists 0:4ec3f2d970da 227 }
embeddedartists 0:4ec3f2d970da 228
embeddedartists 0:4ec3f2d970da 229
embeddedartists 0:4ec3f2d970da 230