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