binary_data_study

binary_data_study.cpp

#include "ofMain.h"

class ofApp : public ofBaseApp {
    struct hex_info {
        bitset<32> bit_seq;
        string str_form;
    };
    deque<hex_info> lines;
    
    union {
        uint32_t input;
        float output;
    } value;
    
    int speed;
    uint64_t current;
    
public:
    void setup() {
        ofEnableSmoothing();
        ofEnableAlphaBlending();
        
        speed = 20;
        current = 0;
    }
    
    void make_bit_seq(uint32_t v, bitset<32> &bs) {
        for(int i = 0; i < 32; i++) {
            if(((v >> (31 - i)) & 1)) bs.set(i);
        }
    }
    
    string print_bit_seq(bitset<32> &bs) {
        ostringstream ss("");
        for(int i = 0; i < 32; i++) ss << (int)bs.test(i);
        return ss.str();
    }
    
    void update() {
        for(int i = 0; i < speed; i++) {
            value.input = current++;
            hex_info info;
            make_bit_seq(value.input, info.bit_seq);
            info.str_form = ofVAArgsToString("= 0b%s = 0%010d = 0x%08X -> %090.45f\n", print_bit_seq(info.bit_seq).c_str(), value.input, value.input, value.output);
            lines.push_back(info);
            if(88 < lines.size()) {
                lines.pop_front();
            }
        }
    }
    
    void draw() {
        ofBackground(0);
        ofTranslate(140, 0);
        for(int i = 0; i < lines.size(); i++) {
            for(int j = 0; j < 32; j++) {
                float x = ofMap(j, 0, 32, 0, 384);
                ofSetColor(lines[i].bit_seq.test(j) ? 255 : 64);
                ofRect(x + 1, 12 + i * 12, 10, 10);
            }
            ofSetColor(255);
            ofDrawBitmapString(lines[i].str_form, 392, 20 + i * 12);
        }
    }
    
    void keyPressed(int key) {
        
    }
};


int main() {
    ofSetupOpenGL(1920, 1080, OF_WINDOW);
    ofRunApp(new ofApp);
}