EmbeddedArtists AB / Mbed 2 deprecated app_lcdboard_demo_mandelbrot

Example for the LPC4088 QSB Base Board

Dependencies:   EALib mbed

MandelbDemo.h@1:b00a5c2416a7, 2014-04-09 (annotated)

Committer:
embeddedartists
Date:
Wed Apr 09 09:48:28 2014 +0000
Revision:
1:b00a5c2416a7
Parent:
0:7ce952ea2c4c 
Updated to latest version of EALib

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:7ce952ea2c4c 1
embeddedartists 0:7ce952ea2c4c 2 #ifndef MANDELBDEMO_H
embeddedartists 0:7ce952ea2c4c 3 #define MANDELBDEMO_H
embeddedartists 0:7ce952ea2c4c 4
embeddedartists 0:7ce952ea2c4c 5 #include "Graphics.h"
embeddedartists 0:7ce952ea2c4c 6 #include "GFXFb.h"
embeddedartists 0:7ce952ea2c4c 7
embeddedartists 0:7ce952ea2c4c 8 class MandelbDemo : public Graphics {
embeddedartists 0:7ce952ea2c4c 9 public:
embeddedartists 0:7ce952ea2c4c 10
embeddedartists 0:7ce952ea2c4c 11 typedef struct
embeddedartists 0:7ce952ea2c4c 12 {
embeddedartists 0:7ce952ea2c4c 13 uint8_t xx;
embeddedartists 0:7ce952ea2c4c 14 uint8_t yy;
embeddedartists 0:7ce952ea2c4c 15 uint8_t rr;
embeddedartists 0:7ce952ea2c4c 16 uint8_t skip;
embeddedartists 0:7ce952ea2c4c 17 } Coord_t;
embeddedartists 0:7ce952ea2c4c 18
embeddedartists 0:7ce952ea2c4c 19 /** Set the address of the frame buffer to use.
embeddedartists 0:7ce952ea2c4c 20 *
embeddedartists 0:7ce952ea2c4c 21 * It is the content of the frame buffer that is shown on the
embeddedartists 0:7ce952ea2c4c 22 * display. All the drawing on the frame buffer can be done
embeddedartists 0:7ce952ea2c4c 23 * 'offline' and whenever it should be shown this function
embeddedartists 0:7ce952ea2c4c 24 * can be called with the address of the offline frame buffer.
embeddedartists 0:7ce952ea2c4c 25 *
embeddedartists 0:7ce952ea2c4c 26 * @param pFrameBuf Pointer to the frame buffer, which must be
embeddedartists 0:7ce952ea2c4c 27 * 3 times as big as the frame size (for tripple
embeddedartists 0:7ce952ea2c4c 28 * buffering).
embeddedartists 0:7ce952ea2c4c 29 * dispWidth The width of the display (in pixels).
embeddedartists 0:7ce952ea2c4c 30 * dispHeight The height of the display (in pixels).
embeddedartists 0:7ce952ea2c4c 31 * loops Number of loops in the demo code.
embeddedartists 0:7ce952ea2c4c 32 * delayMs Delay in milliseconds between schreen updates.
embeddedartists 0:7ce952ea2c4c 33 *
embeddedartists 0:7ce952ea2c4c 34 * @returns
embeddedartists 0:7ce952ea2c4c 35 * none
embeddedartists 0:7ce952ea2c4c 36 */
embeddedartists 0:7ce952ea2c4c 37 MandelbDemo(uint8_t *pFrameBuf, uint16_t dispWidth, uint16_t dispHeight);
embeddedartists 0:7ce952ea2c4c 38
embeddedartists 0:7ce952ea2c4c 39 void run(uint32_t loops, uint32_t delayMs);
embeddedartists 0:7ce952ea2c4c 40
embeddedartists 0:7ce952ea2c4c 41 protected:
embeddedartists 0:7ce952ea2c4c 42 virtual void plot4points( int32_t cx, int32_t cy, int32_t x, int32_t y, int16_t color, int32_t doMandel );
embeddedartists 0:7ce952ea2c4c 43
embeddedartists 0:7ce952ea2c4c 44 private:
embeddedartists 0:7ce952ea2c4c 45
embeddedartists 0:7ce952ea2c4c 46 enum Constants {
embeddedartists 0:7ce952ea2c4c 47 UPDATE_ZONE_COLOR = 0x39e7, //DARK_GRAY
embeddedartists 0:7ce952ea2c4c 48
embeddedartists 0:7ce952ea2c4c 49 // Width and Height of Mandelbrot (which will be a square)
embeddedartists 0:7ce952ea2c4c 50 MANDEL_WIDTH = 250,
embeddedartists 0:7ce952ea2c4c 51 MANDEL_HEIGHT = MANDEL_WIDTH,
embeddedartists 0:7ce952ea2c4c 52
embeddedartists 0:7ce952ea2c4c 53 // Number of iterations before the Mandelbrot function stops
embeddedartists 0:7ce952ea2c4c 54 MAXITERATIONS = 256
embeddedartists 0:7ce952ea2c4c 55 };
embeddedartists 0:7ce952ea2c4c 56
embeddedartists 0:7ce952ea2c4c 57 int32_t windowX;
embeddedartists 0:7ce952ea2c4c 58 int32_t windowY;
embeddedartists 0:7ce952ea2c4c 59 uint16_t *pFrmBuf;
embeddedartists 0:7ce952ea2c4c 60 uint16_t *pFrmBuf1;
embeddedartists 0:7ce952ea2c4c 61 uint16_t *pFrmBuf2;
embeddedartists 0:7ce952ea2c4c 62 uint16_t *pFrmBuf3;
embeddedartists 0:7ce952ea2c4c 63
embeddedartists 0:7ce952ea2c4c 64 //Graphics graphics;
embeddedartists 0:7ce952ea2c4c 65
embeddedartists 0:7ce952ea2c4c 66 // Color mapping array
embeddedartists 0:7ce952ea2c4c 67 uint16_t cols[MAXITERATIONS + 1];
embeddedartists 0:7ce952ea2c4c 68
embeddedartists 0:7ce952ea2c4c 69 // Color of pixel to be plotted
embeddedartists 0:7ce952ea2c4c 70 uint32_t color;
embeddedartists 0:7ce952ea2c4c 71
embeddedartists 0:7ce952ea2c4c 72 // real and imaginary part of the pixel p
embeddedartists 0:7ce952ea2c4c 73 float pixel_real;
embeddedartists 0:7ce952ea2c4c 74 float pixel_imag;
embeddedartists 0:7ce952ea2c4c 75
embeddedartists 0:7ce952ea2c4c 76 //real and imaginary parts of new and old z
embeddedartists 0:7ce952ea2c4c 77 float newReal;
embeddedartists 0:7ce952ea2c4c 78 float newImag;
embeddedartists 0:7ce952ea2c4c 79 float oldReal;
embeddedartists 0:7ce952ea2c4c 80 float oldImag;
embeddedartists 0:7ce952ea2c4c 81
embeddedartists 0:7ce952ea2c4c 82 // Zoom and position within image
embeddedartists 0:7ce952ea2c4c 83 float zoom;
embeddedartists 0:7ce952ea2c4c 84 float moveX;
embeddedartists 0:7ce952ea2c4c 85 float moveY;
embeddedartists 0:7ce952ea2c4c 86
embeddedartists 0:7ce952ea2c4c 87 // For loop counters
embeddedartists 0:7ce952ea2c4c 88 // int x;
embeddedartists 0:7ce952ea2c4c 89 // int y;
embeddedartists 0:7ce952ea2c4c 90
embeddedartists 0:7ce952ea2c4c 91 uint32_t iterate( int32_t x, int32_t y );
embeddedartists 0:7ce952ea2c4c 92
embeddedartists 0:7ce952ea2c4c 93 unsigned short qsqrt(unsigned long a) const;
embeddedartists 0:7ce952ea2c4c 94 };
embeddedartists 0:7ce952ea2c4c 95
embeddedartists 0:7ce952ea2c4c 96 #endif /* MANDELBDEMO_H */
embeddedartists 0:7ce952ea2c4c 97