This is a maintenance fork
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

63 lines
2.9 KiB

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/runtime/gc.h"
#include "libc/str/str.h"
#include "libc/x/x.h"
#include "third_party/stb/stb_image_write.h"
#define YN (1080 / YM)
#define XN (1920 / XM)
#define YM 2
#define XM 2
void *GenerateTortureImage(unsigned char RGB[YN][YM][XN][XM][3]) {
long y, x, i, j, b, r, g;
for (y = 0; y < YN; ++y) {
for (x = 0; x < XN; ++x) {
if ((y & 1) ^ (x & 1)) {
r = 255;
g = 255;
b = 0;
} else {
r = 0;
g = 0;
b = 255;
}
for (i = 0; i < YM; ++i) {
for (j = 0; j < XM; ++j) {
RGB[y][i][x][j][0] = r;
RGB[y][i][x][j][1] = g;
RGB[y][i][x][j][2] = b;
}
}
}
}
return RGB;
}
int main(int argc, char *argv[]) {
stbi_write_png(
gc(xasprintf("maxwell_%dx%d_%dx%d.png", XN * XM, YN * YM, XM, YM)),
XN * XM, YN * YM, 3,
GenerateTortureImage(
gc(xmemalign(32, sizeof(unsigned char) * XN * XM * YN * YM * 3))),
XN * XM * 3);
return 0;
}