💾 Archived View for gmi.noulin.net › gitRepositories › textPixel › file › textPixel.c.gmi captured on 2023-07-10 at 18:12:36. Gemini links have been rewritten to link to archived content
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textPixel.c (2958B)
1 #! /usr/bin/env sheepy
2 /* or direct path to sheepy: #! /usr/local/bin/sheepy */
3
4 /* Libsheepy documentation: https://spartatek.se/libsheepy/ */
5 #include "libsheepyObject.h"
6
7 int argc; char **argv;
8
9 /* enable/disable logging */
10 /* #undef pLog */
11 /* #define pLog(...) */
12
13 typ struct {u16 rows; u16 cols;} winSizet;
14 winSizet wsize (void);
15 u32 text2Color(char *s);
16
17 int main(int ARGC, char** ARGV) {
18
19 argc = ARGC; argv = ARGV;
20
21 initLibsheepy(ARGV[0]);
22 setLogMode(LOG_FUNC);
23 //openProgLogFile();
24 //setLogSymbols(LOG_UTF8);
25 //disableLibsheepyErrorLogs;
26
27 if (argc < 2) {
28 logE("Image name missing.");
29 logI("Usage: textPixel imagePath [-w width]\nwidth must be a positive integer.");
30 XFAILURE;
31 }
32
33 if (not isPath(argv[1])) {
34 logE("File not found '%s'.", argv[1]);
35 logI("Usage: textPixel imagePath [-w width]\nwidth must be a positive integer.");
36 XFAILURE;
37 }
38
39 i32 width = 0;
40
41 if (argc > 2) {
42 if (argc != 4) {
43 logE("Usage: textPixel imagePath [-w width]\nwidth must be a positive integer.");
44 XFAILURE;
45 }
46 if (not eqG(argv[2], "-w")) {
47 logE("Usage: textPixel imagePath [-w width]\nwidth must be a positive integer.");
48 XFAILURE;
49 }
50 width = parseInt(argv[3]);
51 if (not width) {
52 logE("Usage: textPixel imagePath [-w width]\nwidth must be a positive integer.");
53 XFAILURE;
54 }
55 }
56
57 // find terminal size
58 winSizet sz = wsize(); // window cols
59
60 if (not width) width = sz.cols;
61
62 var r = execOutf("convert %s -resize %d txt:-", argv[1], width);
63 //logG(r);
64
65 // r is a list of pixels like this:
66 // 99,132: (22616,22616,22616) #585858 srgb(88,88,88)
67
68 rune rectangle = 0x2584;
69 char rect[6] = init0Var;
70 bRune2CodeUTF8(rect, rectangle);
71 //printf("%K%k%s"RST, 0xFFFFFF, 0x99BBFF, rect); // print unicode character for 2 pixels
72
73
74 // delete first line (not a pixel)
75 delElemG(&r, 0);
76
77 u64 count = 0;
78 u64 line = 0;
79 bool skip100 = no;
80 var len = lenG(r);
81 // loop on pixels
82 forEachS(r, s) {
83 if (not skip100) {
84 #define bottomPixel (count+ line*(width*2) +width)
85 if (bottomPixel >= len) break;
86 u32 colorUp = text2Color(s);
87 u32 colorDown = text2Color(r[bottomPixel]);
88 printf("%K%k%s"RST, colorUp, colorDown, rect);
89 }
90 count++;
91 if (count == width) {
92 if (not skip100) {
93 //printf("$"); // end of line
94 put;
95 line++;
96 }
97 count = 0;
98 skip100 = skip100 ? no : yes;
99 }
100 } // pixel loop
101 }
102
103 u32 text2Color(char *s) {
104 char *color = findG(s, "#")-1;
105 color[0] = '0';
106 color[1] = 'x';
107 char *end = findG(color, " ");
108 *end = 0;
109 //logVarG(color);
110 u32 r = parseHex(color);
111 //printf("%x\n",hexColor);
112 ret r;
113 }
114
115 /* terminal window size */
116 #include <sys/ioctl.h>
117 #include <unistd.h>
118
119 winSizet wsize (void)
120 {
121 struct winsize w;
122 ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
123
124 return (winSizet){w.ws_row, w.ws_col};
125 }
126
127 // vim: set expandtab ts=2 sw=2: