Oscar Frasier / Mbed 2 deprecated mbed_mandelbrot

Mandelbrot set viewer for the ARM Mbed platform

Dependencies:   mbed DmTftLibrary

Mbed Mandelbrot Viewer

Touch-based mandelbrot set viewer for the ARM Mbed platform. Designed with the NXP LPC1768 and the DisplayModule DM-TFT28-116. It should be easy to adapt for any DisplayModule product, especially if it has an I2C touch controller.

On screen options allow the user to switch between 256*(2^n) maxiters up to 4096, and three rendering kernels using floats, integers, and integers in ARMv7 ASM.

src/buttonhandlers.cpp@3:835c035b8b1c, 2018-12-07 (annotated)

Committer:
ofrasier
Date:
Fri Dec 07 01:00:54 2018 +0000
Revision:
3:835c035b8b1c
Parent:
1:a1d80c69e1f0 
Combined ADD-LSL

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ofrasier 1:a1d80c69e1f0 1 #ifndef BUTTONHANDLERS_CPP
ofrasier 1:a1d80c69e1f0 2 #define BUTTONHANDLERS_CPP
ofrasier 1:a1d80c69e1f0 3
ofrasier 1:a1d80c69e1f0 4 // For converting int to string: C++03 has no std::to_string
ofrasier 1:a1d80c69e1f0 5 #include <string>
ofrasier 1:a1d80c69e1f0 6 #include <sstream>
ofrasier 1:a1d80c69e1f0 7 #include "kernels.h"
ofrasier 1:a1d80c69e1f0 8 #include "buttonhandlers.h"
ofrasier 1:a1d80c69e1f0 9
ofrasier 1:a1d80c69e1f0 10 void changeMaxIters(Button *self, DmTftBase *screen)
ofrasier 1:a1d80c69e1f0 11 {
ofrasier 1:a1d80c69e1f0 12 if (brot->maxiters < 4096) {
ofrasier 1:a1d80c69e1f0 13 brot->maxiters *= 2;
ofrasier 1:a1d80c69e1f0 14 } else {
ofrasier 1:a1d80c69e1f0 15 brot->maxiters = 256;
ofrasier 1:a1d80c69e1f0 16 }
ofrasier 1:a1d80c69e1f0 17
ofrasier 1:a1d80c69e1f0 18 std::ostringstream stringStream;
ofrasier 1:a1d80c69e1f0 19 stringStream << brot->maxiters;
ofrasier 1:a1d80c69e1f0 20 self->text = stringStream.str();
ofrasier 1:a1d80c69e1f0 21
ofrasier 1:a1d80c69e1f0 22 self->draw(screen);
ofrasier 1:a1d80c69e1f0 23 }
ofrasier 1:a1d80c69e1f0 24
ofrasier 1:a1d80c69e1f0 25 void changeKernel(Button *self, DmTftBase *screen)
ofrasier 1:a1d80c69e1f0 26 {
ofrasier 1:a1d80c69e1f0 27 if (brot->kernel == drawASM) {
ofrasier 1:a1d80c69e1f0 28 brot->kernel = drawCInt;
ofrasier 1:a1d80c69e1f0 29 self->text = "Integer";
ofrasier 1:a1d80c69e1f0 30 } else if (brot->kernel == drawCInt) {
ofrasier 1:a1d80c69e1f0 31 brot->kernel = drawCFlt;
ofrasier 1:a1d80c69e1f0 32 self->text = "Float";
ofrasier 1:a1d80c69e1f0 33 } else { // brot->kernel == drawCFlt
ofrasier 1:a1d80c69e1f0 34 brot->kernel = drawASM;
ofrasier 1:a1d80c69e1f0 35 self->text = "ASM";
ofrasier 1:a1d80c69e1f0 36 }
ofrasier 1:a1d80c69e1f0 37 self->draw(screen);
ofrasier 1:a1d80c69e1f0 38 }
ofrasier 1:a1d80c69e1f0 39
ofrasier 1:a1d80c69e1f0 40 void reDraw(Button *self, DmTftBase *screen)
ofrasier 1:a1d80c69e1f0 41 {
ofrasier 1:a1d80c69e1f0 42 brot->draw(screen);
ofrasier 1:a1d80c69e1f0 43 }
ofrasier 1:a1d80c69e1f0 44
ofrasier 1:a1d80c69e1f0 45 void resetView(Button *self, DmTftBase *screen)
ofrasier 1:a1d80c69e1f0 46 {
ofrasier 1:a1d80c69e1f0 47 brot->centerX = 0.0f;
ofrasier 1:a1d80c69e1f0 48 brot->centerY = 0.0f;
ofrasier 1:a1d80c69e1f0 49 brot->zoom = 1;
ofrasier 1:a1d80c69e1f0 50 brot->draw(screen);
ofrasier 1:a1d80c69e1f0 51 }
ofrasier 1:a1d80c69e1f0 52
ofrasier 1:a1d80c69e1f0 53 void zoomOut(Button *self, DmTftBase *screen)
ofrasier 1:a1d80c69e1f0 54 {
ofrasier 1:a1d80c69e1f0 55 if (brot->zoom > 1) {
ofrasier 1:a1d80c69e1f0 56 brot->zoom /= 2;
ofrasier 1:a1d80c69e1f0 57 }
ofrasier 1:a1d80c69e1f0 58 brot->draw(screen);
ofrasier 1:a1d80c69e1f0 59 }
ofrasier 1:a1d80c69e1f0 60
ofrasier 1:a1d80c69e1f0 61 #endif