EmbeddedArtists AB / Mbed 2 deprecated app_lcdboard_demo_bubbles

Example for the LPC4088 QSB Base Board

Dependencies:   EALib mbed

Graphics.cpp@1:aafddd9761a3, 2014-04-09 (annotated)

Committer:
embeddedartists
Date:
Wed Apr 09 09:43:40 2014 +0000
Revision:
1:aafddd9761a3
Parent:
0:7546db568365 
Updated to latest version of EALib

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:7546db568365 1
embeddedartists 0:7546db568365 2 #include "mbed.h"
embeddedartists 0:7546db568365 3 #include "Graphics.h"
embeddedartists 0:7546db568365 4
embeddedartists 0:7546db568365 5
embeddedartists 0:7546db568365 6 Graphics::Graphics(uint16_t *pFrmBuf, uint16_t dispWidth, uint16_t dispHeight)
embeddedartists 0:7546db568365 7 {
embeddedartists 0:7546db568365 8 this->windowX = dispWidth;
embeddedartists 0:7546db568365 9 this->windowY = dispHeight;
embeddedartists 0:7546db568365 10 this->pFrmBuf = pFrmBuf;
embeddedartists 0:7546db568365 11 }
embeddedartists 0:7546db568365 12
embeddedartists 0:7546db568365 13 void Graphics::setFrameBuffer( uint16_t *pFrmBuf )
embeddedartists 0:7546db568365 14 {
embeddedartists 0:7546db568365 15 this->pFrmBuf = pFrmBuf;
embeddedartists 0:7546db568365 16 }
embeddedartists 0:7546db568365 17
embeddedartists 0:7546db568365 18 int32_t Graphics::abs(int32_t v1) const
embeddedartists 0:7546db568365 19 {
embeddedartists 0:7546db568365 20 if (v1 > 0)
embeddedartists 0:7546db568365 21 return v1;
embeddedartists 0:7546db568365 22
embeddedartists 0:7546db568365 23 return -v1;
embeddedartists 0:7546db568365 24 }
embeddedartists 0:7546db568365 25
embeddedartists 0:7546db568365 26 /***********************************************************************
embeddedartists 0:7546db568365 27 *
embeddedartists 0:7546db568365 28 * Function: swim_put_line_raw
embeddedartists 0:7546db568365 29 *
embeddedartists 0:7546db568365 30 * Purpose: Draw a line on the physical display
embeddedartists 0:7546db568365 31 *
embeddedartists 0:7546db568365 32 * Processing:
embeddedartists 0:7546db568365 33 * See function.
embeddedartists 0:7546db568365 34 *
embeddedartists 0:7546db568365 35 * Parameters:
embeddedartists 0:7546db568365 36 * win : Window identifier
embeddedartists 0:7546db568365 37 * x1 : Physical X position of X line start
embeddedartists 0:7546db568365 38 * y1 : Physical Y position of Y line start
embeddedartists 0:7546db568365 39 * x2 : Physical X position of X line end
embeddedartists 0:7546db568365 40 * y2 : Physical Y position of Y line end
embeddedartists 0:7546db568365 41 *
embeddedartists 0:7546db568365 42 * Outputs: None
embeddedartists 0:7546db568365 43 *
embeddedartists 0:7546db568365 44 * Returns: Nothing
embeddedartists 0:7546db568365 45 *
embeddedartists 0:7546db568365 46 * Notes: None
embeddedartists 0:7546db568365 47 *
embeddedartists 0:7546db568365 48 **********************************************************************/
embeddedartists 0:7546db568365 49 void Graphics::put_line(int32_t x1, int32_t y1, int32_t x2, int32_t y2, int16_t color)
embeddedartists 0:7546db568365 50 {
embeddedartists 0:7546db568365 51 int32_t e2, sx, sy, dx, dy, err;
embeddedartists 0:7546db568365 52
embeddedartists 0:7546db568365 53 /* calculate delta_x and delta_y */
embeddedartists 0:7546db568365 54 dx = abs(x2 - x1);
embeddedartists 0:7546db568365 55 dy = abs(y2 - y1);
embeddedartists 0:7546db568365 56
embeddedartists 0:7546db568365 57 /* set the direction for the step for both x and y, and
embeddedartists 0:7546db568365 58 initialize the error */
embeddedartists 0:7546db568365 59 if (x1 < x2)
embeddedartists 0:7546db568365 60 sx = 1;
embeddedartists 0:7546db568365 61 else
embeddedartists 0:7546db568365 62 sx = -1;
embeddedartists 0:7546db568365 63
embeddedartists 0:7546db568365 64 if (y1 < y2)
embeddedartists 0:7546db568365 65 sy = 1;
embeddedartists 0:7546db568365 66 else
embeddedartists 0:7546db568365 67 sy = -1;
embeddedartists 0:7546db568365 68
embeddedartists 0:7546db568365 69 err = dx - dy;
embeddedartists 0:7546db568365 70
embeddedartists 0:7546db568365 71 while (1)
embeddedartists 0:7546db568365 72 {
embeddedartists 0:7546db568365 73 if ((x1 >= 0) && (x1 < this->windowX) &&
embeddedartists 0:7546db568365 74 (y1 >= 0) && (y1 < this->windowY))
embeddedartists 0:7546db568365 75 this->pFrmBuf[x1 + (this->windowX*y1)] = color;
embeddedartists 0:7546db568365 76
embeddedartists 0:7546db568365 77 if ((x1 == x2) && (y1 == y2))
embeddedartists 0:7546db568365 78 return;
embeddedartists 0:7546db568365 79
embeddedartists 0:7546db568365 80 e2 = 2 * err;
embeddedartists 0:7546db568365 81 if (e2 > -dy)
embeddedartists 0:7546db568365 82 {
embeddedartists 0:7546db568365 83 err -= dy;
embeddedartists 0:7546db568365 84 x1 += sx;
embeddedartists 0:7546db568365 85 }
embeddedartists 0:7546db568365 86 if (e2 < dx)
embeddedartists 0:7546db568365 87 {
embeddedartists 0:7546db568365 88 err += dx;
embeddedartists 0:7546db568365 89 y1 += sy;
embeddedartists 0:7546db568365 90 }
embeddedartists 0:7546db568365 91 }
embeddedartists 0:7546db568365 92 }
embeddedartists 0:7546db568365 93
embeddedartists 0:7546db568365 94 /***********************************************************************
embeddedartists 0:7546db568365 95 *
embeddedartists 0:7546db568365 96 * Function: plot4points
embeddedartists 0:7546db568365 97 *
embeddedartists 0:7546db568365 98 * Purpose:
embeddedartists 0:7546db568365 99 *
embeddedartists 0:7546db568365 100 * Processing:
embeddedartists 0:7546db568365 101 * See function.
embeddedartists 0:7546db568365 102 *
embeddedartists 0:7546db568365 103 * Parameters:
embeddedartists 0:7546db568365 104 * win : Window identifier
embeddedartists 0:7546db568365 105 * cx :
embeddedartists 0:7546db568365 106 * cy :
embeddedartists 0:7546db568365 107 * x :
embeddedartists 0:7546db568365 108 * y :
embeddedartists 0:7546db568365 109 * Filled :
embeddedartists 0:7546db568365 110 *
embeddedartists 0:7546db568365 111 * Outputs: None
embeddedartists 0:7546db568365 112 *
embeddedartists 0:7546db568365 113 * Returns: Nothing
embeddedartists 0:7546db568365 114 *
embeddedartists 0:7546db568365 115 * Notes: None
embeddedartists 0:7546db568365 116 *
embeddedartists 0:7546db568365 117 **********************************************************************/
embeddedartists 0:7546db568365 118 void Graphics::plot4points( int32_t cx, int32_t cy, int32_t x, int32_t y, int16_t color, int32_t Filled )
embeddedartists 0:7546db568365 119 {
embeddedartists 0:7546db568365 120 int16_t x0, x1, y0, y1;
embeddedartists 0:7546db568365 121
embeddedartists 0:7546db568365 122 y0 = cy + y;
embeddedartists 0:7546db568365 123 y1 = cy - y;
embeddedartists 0:7546db568365 124 if( Filled )
embeddedartists 0:7546db568365 125 {
embeddedartists 0:7546db568365 126 for( x0=cx - x; x0<=cx + x; x0++ )
embeddedartists 0:7546db568365 127 {
embeddedartists 0:7546db568365 128 if ((x0>=0) && (x0<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:7546db568365 129 this->pFrmBuf[x0 + (this->windowX*y0)] = color;
embeddedartists 0:7546db568365 130 if ((x0>=0) && (x0<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:7546db568365 131 this->pFrmBuf[x0 + (this->windowX*y1)] = color;
embeddedartists 0:7546db568365 132 }
embeddedartists 0:7546db568365 133 }
embeddedartists 0:7546db568365 134 else
embeddedartists 0:7546db568365 135 {
embeddedartists 0:7546db568365 136 x0 = cx + x;
embeddedartists 0:7546db568365 137 x1 = cx - x;
embeddedartists 0:7546db568365 138 if ((x0>=0) && (x0<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:7546db568365 139 this->pFrmBuf[x0 + (this->windowX*y0)] = color;
embeddedartists 0:7546db568365 140 if ((x != 0) &&
embeddedartists 0:7546db568365 141 (x1>=0) && (x1<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:7546db568365 142 this->pFrmBuf[x1 + (this->windowX*y0)] = color;
embeddedartists 0:7546db568365 143 if ((y != 0) &&
embeddedartists 0:7546db568365 144 (x0>=0) && (x0<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:7546db568365 145 this->pFrmBuf[x0 + (this->windowX*y1)] = color;
embeddedartists 0:7546db568365 146 if ((x != 0 && y != 0) &&
embeddedartists 0:7546db568365 147 (x1>=0) && (x1<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:7546db568365 148 this->pFrmBuf[x1 + (this->windowX*y1)] = color;
embeddedartists 0:7546db568365 149 }
embeddedartists 0:7546db568365 150 }
embeddedartists 0:7546db568365 151
embeddedartists 0:7546db568365 152 /***********************************************************************
embeddedartists 0:7546db568365 153 *
embeddedartists 0:7546db568365 154 * Function: plot8points
embeddedartists 0:7546db568365 155 *
embeddedartists 0:7546db568365 156 * Purpose:
embeddedartists 0:7546db568365 157 *
embeddedartists 0:7546db568365 158 * Processing:
embeddedartists 0:7546db568365 159 * See function.
embeddedartists 0:7546db568365 160 *
embeddedartists 0:7546db568365 161 * Parameters:
embeddedartists 0:7546db568365 162 * win : Window identifier
embeddedartists 0:7546db568365 163 * cx :
embeddedartists 0:7546db568365 164 * cy :
embeddedartists 0:7546db568365 165 * x :
embeddedartists 0:7546db568365 166 * y :
embeddedartists 0:7546db568365 167 * Filled :
embeddedartists 0:7546db568365 168 *
embeddedartists 0:7546db568365 169 * Outputs: None
embeddedartists 0:7546db568365 170 *
embeddedartists 0:7546db568365 171 * Returns: Nothing
embeddedartists 0:7546db568365 172 *
embeddedartists 0:7546db568365 173 * Notes: None
embeddedartists 0:7546db568365 174 *
embeddedartists 0:7546db568365 175 **********************************************************************/
embeddedartists 0:7546db568365 176 void Graphics::plot8points( int32_t cx, int32_t cy, int32_t x, int32_t y, int16_t color, int32_t Filled )
embeddedartists 0:7546db568365 177 {
embeddedartists 0:7546db568365 178 plot4points( cx, cy, x, y, color, Filled );
embeddedartists 0:7546db568365 179 if (x != y)
embeddedartists 0:7546db568365 180 plot4points( cx, cy, y, x, color, Filled );
embeddedartists 0:7546db568365 181 }
embeddedartists 0:7546db568365 182
embeddedartists 0:7546db568365 183 /***********************************************************************
embeddedartists 0:7546db568365 184 *
embeddedartists 0:7546db568365 185 * Function: swim_put_circle
embeddedartists 0:7546db568365 186 *
embeddedartists 0:7546db568365 187 * Purpose:
embeddedartists 0:7546db568365 188 *
embeddedartists 0:7546db568365 189 * Processing:
embeddedartists 0:7546db568365 190 * See function.
embeddedartists 0:7546db568365 191 *
embeddedartists 0:7546db568365 192 * Parameters:
embeddedartists 0:7546db568365 193 * win : Window identifier
embeddedartists 0:7546db568365 194 * cx :
embeddedartists 0:7546db568365 195 * cy :
embeddedartists 0:7546db568365 196 * radius :
embeddedartists 0:7546db568365 197 * Filled :
embeddedartists 0:7546db568365 198 *
embeddedartists 0:7546db568365 199 * Outputs: None
embeddedartists 0:7546db568365 200 *
embeddedartists 0:7546db568365 201 * Returns: Nothing
embeddedartists 0:7546db568365 202 *
embeddedartists 0:7546db568365 203 * Notes: None
embeddedartists 0:7546db568365 204 *
embeddedartists 0:7546db568365 205 **********************************************************************/
embeddedartists 0:7546db568365 206 void Graphics::put_circle( int32_t cx, int32_t cy, int16_t color, int32_t radius, int32_t Filled )
embeddedartists 0:7546db568365 207 {
embeddedartists 0:7546db568365 208 int32_t Error = -radius;
embeddedartists 0:7546db568365 209 int16_t x = radius;
embeddedartists 0:7546db568365 210 int16_t y = 0;
embeddedartists 0:7546db568365 211
embeddedartists 0:7546db568365 212 while( x >= y )
embeddedartists 0:7546db568365 213 {
embeddedartists 0:7546db568365 214 plot8points( cx, cy, x, y, color, Filled );
embeddedartists 0:7546db568365 215
embeddedartists 0:7546db568365 216 Error += y;
embeddedartists 0:7546db568365 217 ++y;
embeddedartists 0:7546db568365 218 Error += y;
embeddedartists 0:7546db568365 219
embeddedartists 0:7546db568365 220 if( Error >= 0 )
embeddedartists 0:7546db568365 221 {
embeddedartists 0:7546db568365 222 --x;
embeddedartists 0:7546db568365 223 Error -= x;
embeddedartists 0:7546db568365 224 Error -= x;
embeddedartists 0:7546db568365 225 }
embeddedartists 0:7546db568365 226 }
embeddedartists 0:7546db568365 227 }
embeddedartists 0:7546db568365 228
embeddedartists 0:7546db568365 229