Atlas - render.cpp
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[FILE BEGIN]
1/* SPDX-License-Identifier: GPL-3.0
2 * VisHash - An easy way to visualise hashes
3 *
4 * render.cpp
5 *
6 * COPYRIGHT NOTICE
7 * Copyright (C) 2025 0x4248 and contributors
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the license is not changed.
10 *
11 * This software is free and open source. Licensed under the GNU general
12 * public license version 3.0 as published by the Free Software Foundation.
13*/
14
15#include <vector>
16#include <openssl/sha.h>
17#include <iostream>
18#include <fstream>
19#include "image.h"
20
21/**
22 * Draw to TTY
23 */
24void draw(const std::vector<std::vector<int>> &grid, const std::string &label) {
25
26    int maxv = 0;
27    for (auto &row : grid)
28        for (int v : row)
29            maxv = std::max(maxv, v);
30
31
32    for (int y = 0; y < H; ++y) {
33        for (int x = 0; x < W; ++x) {
34            std::cout << level_to_char(grid[y][x], maxv);
35        }
36        std::cout << "\n";
37    }
38
39}
40
41/**
42 * Basically prints out the values for debugging
43 */
44void print_values(const std::vector<std::vector<int>>& grid) {
45    int H = grid.size();
46    int W = grid[0].size();
47    for (int y = 0; y < H; y++) {
48        for (int x = 0; x < W; x++) {
49            std::cout << grid[y][x];
50        }
51        std::cout << "\n";
52    }
53}
54
55void savePPM(const std::vector<std::vector<int>>& grid, const std::string& filename)
56{
57    int H = grid.size();
58    int W = grid[0].size();
59
60    int maxv = 0;
61    for (auto& row : grid)
62        for (int v : row)
63            maxv = std::max(maxv, v);
64
65    std::ofstream out(filename);
66    out << "P3\n" << W << " " << H << "\n255\n";
67
68    for (int y = 0; y < H; y++) {
69        for (int x = 0; x < W; x++) {
70            float t = (float)grid[y][x] / (float)maxv;
71
72            int v = (int)(t * 255); /* Can be changed for intensity */
73
74            out << v << " " << v << " " << v << "  ";
75        }
76        out << "\n";
77    }
78}
79
[FILE END]
(C) 2025 0x4248
(C) 2025 4248 Media and 4248 Systems, All part of 0x4248
See LICENCE files for more information. Not all files are by 0x4248 always check Licencing.