EmbeddedArtists AB / Mbed 2 deprecated lpc4088_ebb_gui_bubbles

Graphical demo for the LPC4088 Experiment Base Board with one of the Display Expansion Kits. This demo shows a number of bubbles bouncing around.

Dependencies:   EALib mbed

Graphics.cpp@0:4839ec6c350d, 2014-10-03 (annotated)

Committer:
embeddedartists
Date:
Fri Oct 03 13:09:11 2014 +0000
Revision:
0:4839ec6c350d
First version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:4839ec6c350d 1
embeddedartists 0:4839ec6c350d 2 #include "mbed.h"
embeddedartists 0:4839ec6c350d 3 #include "Graphics.h"
embeddedartists 0:4839ec6c350d 4
embeddedartists 0:4839ec6c350d 5
embeddedartists 0:4839ec6c350d 6 Graphics::Graphics(uint16_t *pFrmBuf, uint16_t dispWidth, uint16_t dispHeight)
embeddedartists 0:4839ec6c350d 7 {
embeddedartists 0:4839ec6c350d 8 this->windowX = dispWidth;
embeddedartists 0:4839ec6c350d 9 this->windowY = dispHeight;
embeddedartists 0:4839ec6c350d 10 this->pFrmBuf = pFrmBuf;
embeddedartists 0:4839ec6c350d 11 }
embeddedartists 0:4839ec6c350d 12
embeddedartists 0:4839ec6c350d 13 void Graphics::setFrameBuffer( uint16_t *pFrmBuf )
embeddedartists 0:4839ec6c350d 14 {
embeddedartists 0:4839ec6c350d 15 this->pFrmBuf = pFrmBuf;
embeddedartists 0:4839ec6c350d 16 }
embeddedartists 0:4839ec6c350d 17
embeddedartists 0:4839ec6c350d 18 int32_t Graphics::abs(int32_t v1) const
embeddedartists 0:4839ec6c350d 19 {
embeddedartists 0:4839ec6c350d 20 if (v1 > 0)
embeddedartists 0:4839ec6c350d 21 return v1;
embeddedartists 0:4839ec6c350d 22
embeddedartists 0:4839ec6c350d 23 return -v1;
embeddedartists 0:4839ec6c350d 24 }
embeddedartists 0:4839ec6c350d 25
embeddedartists 0:4839ec6c350d 26 /***********************************************************************
embeddedartists 0:4839ec6c350d 27 *
embeddedartists 0:4839ec6c350d 28 * Function: swim_put_line_raw
embeddedartists 0:4839ec6c350d 29 *
embeddedartists 0:4839ec6c350d 30 * Purpose: Draw a line on the physical display
embeddedartists 0:4839ec6c350d 31 *
embeddedartists 0:4839ec6c350d 32 * Processing:
embeddedartists 0:4839ec6c350d 33 * See function.
embeddedartists 0:4839ec6c350d 34 *
embeddedartists 0:4839ec6c350d 35 * Parameters:
embeddedartists 0:4839ec6c350d 36 * win : Window identifier
embeddedartists 0:4839ec6c350d 37 * x1 : Physical X position of X line start
embeddedartists 0:4839ec6c350d 38 * y1 : Physical Y position of Y line start
embeddedartists 0:4839ec6c350d 39 * x2 : Physical X position of X line end
embeddedartists 0:4839ec6c350d 40 * y2 : Physical Y position of Y line end
embeddedartists 0:4839ec6c350d 41 *
embeddedartists 0:4839ec6c350d 42 * Outputs: None
embeddedartists 0:4839ec6c350d 43 *
embeddedartists 0:4839ec6c350d 44 * Returns: Nothing
embeddedartists 0:4839ec6c350d 45 *
embeddedartists 0:4839ec6c350d 46 * Notes: None
embeddedartists 0:4839ec6c350d 47 *
embeddedartists 0:4839ec6c350d 48 **********************************************************************/
embeddedartists 0:4839ec6c350d 49 void Graphics::put_line(int32_t x1, int32_t y1, int32_t x2, int32_t y2, int16_t color)
embeddedartists 0:4839ec6c350d 50 {
embeddedartists 0:4839ec6c350d 51 int32_t e2, sx, sy, dx, dy, err;
embeddedartists 0:4839ec6c350d 52
embeddedartists 0:4839ec6c350d 53 /* calculate delta_x and delta_y */
embeddedartists 0:4839ec6c350d 54 dx = abs(x2 - x1);
embeddedartists 0:4839ec6c350d 55 dy = abs(y2 - y1);
embeddedartists 0:4839ec6c350d 56
embeddedartists 0:4839ec6c350d 57 /* set the direction for the step for both x and y, and
embeddedartists 0:4839ec6c350d 58 initialize the error */
embeddedartists 0:4839ec6c350d 59 if (x1 < x2)
embeddedartists 0:4839ec6c350d 60 sx = 1;
embeddedartists 0:4839ec6c350d 61 else
embeddedartists 0:4839ec6c350d 62 sx = -1;
embeddedartists 0:4839ec6c350d 63
embeddedartists 0:4839ec6c350d 64 if (y1 < y2)
embeddedartists 0:4839ec6c350d 65 sy = 1;
embeddedartists 0:4839ec6c350d 66 else
embeddedartists 0:4839ec6c350d 67 sy = -1;
embeddedartists 0:4839ec6c350d 68
embeddedartists 0:4839ec6c350d 69 err = dx - dy;
embeddedartists 0:4839ec6c350d 70
embeddedartists 0:4839ec6c350d 71 while (1)
embeddedartists 0:4839ec6c350d 72 {
embeddedartists 0:4839ec6c350d 73 if ((x1 >= 0) && (x1 < this->windowX) &&
embeddedartists 0:4839ec6c350d 74 (y1 >= 0) && (y1 < this->windowY))
embeddedartists 0:4839ec6c350d 75 this->pFrmBuf[x1 + (this->windowX*y1)] = color;
embeddedartists 0:4839ec6c350d 76
embeddedartists 0:4839ec6c350d 77 if ((x1 == x2) && (y1 == y2))
embeddedartists 0:4839ec6c350d 78 return;
embeddedartists 0:4839ec6c350d 79
embeddedartists 0:4839ec6c350d 80 e2 = 2 * err;
embeddedartists 0:4839ec6c350d 81 if (e2 > -dy)
embeddedartists 0:4839ec6c350d 82 {
embeddedartists 0:4839ec6c350d 83 err -= dy;
embeddedartists 0:4839ec6c350d 84 x1 += sx;
embeddedartists 0:4839ec6c350d 85 }
embeddedartists 0:4839ec6c350d 86 if (e2 < dx)
embeddedartists 0:4839ec6c350d 87 {
embeddedartists 0:4839ec6c350d 88 err += dx;
embeddedartists 0:4839ec6c350d 89 y1 += sy;
embeddedartists 0:4839ec6c350d 90 }
embeddedartists 0:4839ec6c350d 91 }
embeddedartists 0:4839ec6c350d 92 }
embeddedartists 0:4839ec6c350d 93
embeddedartists 0:4839ec6c350d 94 /***********************************************************************
embeddedartists 0:4839ec6c350d 95 *
embeddedartists 0:4839ec6c350d 96 * Function: plot4points
embeddedartists 0:4839ec6c350d 97 *
embeddedartists 0:4839ec6c350d 98 * Purpose:
embeddedartists 0:4839ec6c350d 99 *
embeddedartists 0:4839ec6c350d 100 * Processing:
embeddedartists 0:4839ec6c350d 101 * See function.
embeddedartists 0:4839ec6c350d 102 *
embeddedartists 0:4839ec6c350d 103 * Parameters:
embeddedartists 0:4839ec6c350d 104 * win : Window identifier
embeddedartists 0:4839ec6c350d 105 * cx :
embeddedartists 0:4839ec6c350d 106 * cy :
embeddedartists 0:4839ec6c350d 107 * x :
embeddedartists 0:4839ec6c350d 108 * y :
embeddedartists 0:4839ec6c350d 109 * Filled :
embeddedartists 0:4839ec6c350d 110 *
embeddedartists 0:4839ec6c350d 111 * Outputs: None
embeddedartists 0:4839ec6c350d 112 *
embeddedartists 0:4839ec6c350d 113 * Returns: Nothing
embeddedartists 0:4839ec6c350d 114 *
embeddedartists 0:4839ec6c350d 115 * Notes: None
embeddedartists 0:4839ec6c350d 116 *
embeddedartists 0:4839ec6c350d 117 **********************************************************************/
embeddedartists 0:4839ec6c350d 118 void Graphics::plot4points( int32_t cx, int32_t cy, int32_t x, int32_t y, int16_t color, int32_t Filled )
embeddedartists 0:4839ec6c350d 119 {
embeddedartists 0:4839ec6c350d 120 int16_t x0, x1, y0, y1;
embeddedartists 0:4839ec6c350d 121
embeddedartists 0:4839ec6c350d 122 y0 = cy + y;
embeddedartists 0:4839ec6c350d 123 y1 = cy - y;
embeddedartists 0:4839ec6c350d 124 if( Filled )
embeddedartists 0:4839ec6c350d 125 {
embeddedartists 0:4839ec6c350d 126 for( x0=cx - x; x0<=cx + x; x0++ )
embeddedartists 0:4839ec6c350d 127 {
embeddedartists 0:4839ec6c350d 128 if ((x0>=0) && (x0<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:4839ec6c350d 129 this->pFrmBuf[x0 + (this->windowX*y0)] = color;
embeddedartists 0:4839ec6c350d 130 if ((x0>=0) && (x0<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:4839ec6c350d 131 this->pFrmBuf[x0 + (this->windowX*y1)] = color;
embeddedartists 0:4839ec6c350d 132 }
embeddedartists 0:4839ec6c350d 133 }
embeddedartists 0:4839ec6c350d 134 else
embeddedartists 0:4839ec6c350d 135 {
embeddedartists 0:4839ec6c350d 136 x0 = cx + x;
embeddedartists 0:4839ec6c350d 137 x1 = cx - x;
embeddedartists 0:4839ec6c350d 138 if ((x0>=0) && (x0<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:4839ec6c350d 139 this->pFrmBuf[x0 + (this->windowX*y0)] = color;
embeddedartists 0:4839ec6c350d 140 if ((x != 0) &&
embeddedartists 0:4839ec6c350d 141 (x1>=0) && (x1<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:4839ec6c350d 142 this->pFrmBuf[x1 + (this->windowX*y0)] = color;
embeddedartists 0:4839ec6c350d 143 if ((y != 0) &&
embeddedartists 0:4839ec6c350d 144 (x0>=0) && (x0<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:4839ec6c350d 145 this->pFrmBuf[x0 + (this->windowX*y1)] = color;
embeddedartists 0:4839ec6c350d 146 if ((x != 0 && y != 0) &&
embeddedartists 0:4839ec6c350d 147 (x1>=0) && (x1<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:4839ec6c350d 148 this->pFrmBuf[x1 + (this->windowX*y1)] = color;
embeddedartists 0:4839ec6c350d 149 }
embeddedartists 0:4839ec6c350d 150 }
embeddedartists 0:4839ec6c350d 151
embeddedartists 0:4839ec6c350d 152 /***********************************************************************
embeddedartists 0:4839ec6c350d 153 *
embeddedartists 0:4839ec6c350d 154 * Function: plot8points
embeddedartists 0:4839ec6c350d 155 *
embeddedartists 0:4839ec6c350d 156 * Purpose:
embeddedartists 0:4839ec6c350d 157 *
embeddedartists 0:4839ec6c350d 158 * Processing:
embeddedartists 0:4839ec6c350d 159 * See function.
embeddedartists 0:4839ec6c350d 160 *
embeddedartists 0:4839ec6c350d 161 * Parameters:
embeddedartists 0:4839ec6c350d 162 * win : Window identifier
embeddedartists 0:4839ec6c350d 163 * cx :
embeddedartists 0:4839ec6c350d 164 * cy :
embeddedartists 0:4839ec6c350d 165 * x :
embeddedartists 0:4839ec6c350d 166 * y :
embeddedartists 0:4839ec6c350d 167 * Filled :
embeddedartists 0:4839ec6c350d 168 *
embeddedartists 0:4839ec6c350d 169 * Outputs: None
embeddedartists 0:4839ec6c350d 170 *
embeddedartists 0:4839ec6c350d 171 * Returns: Nothing
embeddedartists 0:4839ec6c350d 172 *
embeddedartists 0:4839ec6c350d 173 * Notes: None
embeddedartists 0:4839ec6c350d 174 *
embeddedartists 0:4839ec6c350d 175 **********************************************************************/
embeddedartists 0:4839ec6c350d 176 void Graphics::plot8points( int32_t cx, int32_t cy, int32_t x, int32_t y, int16_t color, int32_t Filled )
embeddedartists 0:4839ec6c350d 177 {
embeddedartists 0:4839ec6c350d 178 plot4points( cx, cy, x, y, color, Filled );
embeddedartists 0:4839ec6c350d 179 if (x != y)
embeddedartists 0:4839ec6c350d 180 plot4points( cx, cy, y, x, color, Filled );
embeddedartists 0:4839ec6c350d 181 }
embeddedartists 0:4839ec6c350d 182
embeddedartists 0:4839ec6c350d 183 /***********************************************************************
embeddedartists 0:4839ec6c350d 184 *
embeddedartists 0:4839ec6c350d 185 * Function: swim_put_circle
embeddedartists 0:4839ec6c350d 186 *
embeddedartists 0:4839ec6c350d 187 * Purpose:
embeddedartists 0:4839ec6c350d 188 *
embeddedartists 0:4839ec6c350d 189 * Processing:
embeddedartists 0:4839ec6c350d 190 * See function.
embeddedartists 0:4839ec6c350d 191 *
embeddedartists 0:4839ec6c350d 192 * Parameters:
embeddedartists 0:4839ec6c350d 193 * win : Window identifier
embeddedartists 0:4839ec6c350d 194 * cx :
embeddedartists 0:4839ec6c350d 195 * cy :
embeddedartists 0:4839ec6c350d 196 * radius :
embeddedartists 0:4839ec6c350d 197 * Filled :
embeddedartists 0:4839ec6c350d 198 *
embeddedartists 0:4839ec6c350d 199 * Outputs: None
embeddedartists 0:4839ec6c350d 200 *
embeddedartists 0:4839ec6c350d 201 * Returns: Nothing
embeddedartists 0:4839ec6c350d 202 *
embeddedartists 0:4839ec6c350d 203 * Notes: None
embeddedartists 0:4839ec6c350d 204 *
embeddedartists 0:4839ec6c350d 205 **********************************************************************/
embeddedartists 0:4839ec6c350d 206 void Graphics::put_circle( int32_t cx, int32_t cy, int16_t color, int32_t radius, int32_t Filled )
embeddedartists 0:4839ec6c350d 207 {
embeddedartists 0:4839ec6c350d 208 int32_t Error = -radius;
embeddedartists 0:4839ec6c350d 209 int16_t x = radius;
embeddedartists 0:4839ec6c350d 210 int16_t y = 0;
embeddedartists 0:4839ec6c350d 211
embeddedartists 0:4839ec6c350d 212 while( x >= y )
embeddedartists 0:4839ec6c350d 213 {
embeddedartists 0:4839ec6c350d 214 plot8points( cx, cy, x, y, color, Filled );
embeddedartists 0:4839ec6c350d 215
embeddedartists 0:4839ec6c350d 216 Error += y;
embeddedartists 0:4839ec6c350d 217 ++y;
embeddedartists 0:4839ec6c350d 218 Error += y;
embeddedartists 0:4839ec6c350d 219
embeddedartists 0:4839ec6c350d 220 if( Error >= 0 )
embeddedartists 0:4839ec6c350d 221 {
embeddedartists 0:4839ec6c350d 222 --x;
embeddedartists 0:4839ec6c350d 223 Error -= x;
embeddedartists 0:4839ec6c350d 224 Error -= x;
embeddedartists 0:4839ec6c350d 225 }
embeddedartists 0:4839ec6c350d 226 }
embeddedartists 0:4839ec6c350d 227 }
embeddedartists 0:4839ec6c350d 228
embeddedartists 0:4839ec6c350d 229 void Graphics::put_dot( int32_t cx, int32_t cy, int16_t color )
embeddedartists 0:4839ec6c350d 230 {
embeddedartists 0:4839ec6c350d 231 int size = 1;
embeddedartists 0:4839ec6c350d 232 for (int y1 = cy - size; y1 <= (cy + size); y1++) {
embeddedartists 0:4839ec6c350d 233 for (int x1 = cx - size; x1 <= (cx + size); x1++) {
embeddedartists 0:4839ec6c350d 234 if ((x1 >= 0) && (x1 < this->windowX) && (y1 >= 0) && (y1 < this->windowY)) {
embeddedartists 0:4839ec6c350d 235 this->pFrmBuf[x1 + (this->windowX*y1)] = color;
embeddedartists 0:4839ec6c350d 236 }
embeddedartists 0:4839ec6c350d 237 }
embeddedartists 0:4839ec6c350d 238 }
embeddedartists 0:4839ec6c350d 239 }
embeddedartists 0:4839ec6c350d 240
embeddedartists 0:4839ec6c350d 241