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63 lines
2.9 KiB
63 lines
2.9 KiB
/*-*- 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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