63 lines
2.8 KiB
C
63 lines
2.8 KiB
C
/*-*- 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 │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#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;
|
|
}
|