147 lines
6.8 KiB
C
147 lines
6.8 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/log/log.h"
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#include "libc/rand/rand.h"
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#include "libc/testlib/ezbench.h"
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#include "libc/testlib/testlib.h"
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#include "tool/viz/lib/bilinearscale.h"
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#include "tool/viz/lib/graphic.h"
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TEST(BilinearScale, testWindmill_1x1_to_2x2) {
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EXPECT_BINEQ(
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u"λλ"
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u"λλ",
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BilinearScale(1, 2, 2, tgc(tmalloc(1 * 2 * 2)), 1, 1, 1,
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tgc(tunbing(u"λ")), 0, 1, 2, 2, 1, 1, .5, .5, 0, 0));
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}
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TEST(BilinearScale, testWindmill_4x4_to_2x2) {
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EXPECT_BINEQ(u"λ "
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u" λ",
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BilinearScale(1, 2, 2, tgc(tmalloc(2 * 2)), 1, 4, 4,
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tgc(tunbing(u"λλ "
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u"λλ "
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u" λλ"
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u" λλ")),
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0, 1, 2, 2, 4, 4, 2, 2, 0, 0));
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}
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TEST(BilinearScale, testWindmill_8x8_to_4x4) {
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EXPECT_BINEQ(u"λλ "
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u"λλ "
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u" λλ"
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u" λλ",
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BilinearScale(1, 4, 4, tgc(tmalloc(4 * 4)), 1, 8, 8,
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tgc(tunbing(u"λλλλ "
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u"λλλλ "
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u"λλλλ "
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u"λλλλ "
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u" λλλλ"
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u" λλλλ"
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u" λλλλ"
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u" λλλλ")),
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0, 1, 4, 4, 8, 8, 2, 2, 0, 0));
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}
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TEST(BilinearScale, testWindmill_4x4_to_8x8) {
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EXPECT_BINEQ(u"λλλλ┐ "
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u"λλλλ┐ "
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u"λλλλ┐ "
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u"λλλλ┐ "
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u"┐┐┐┐ƒ⁇⁇⁇"
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u" ⁇λλλ"
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u" ⁇λλλ"
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u" ⁇λλλ",
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BilinearScale(1, 8, 8, tgc(tmalloc(8 * 8)), 1, 4, 4,
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tgc(tunbing(u"λλ "
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u"λλ "
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u" λλ"
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u" λλ")),
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0, 1, 8, 8, 4, 4, .5, .5, 0, 0));
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}
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TEST(BilinearScale, testWindmill_5x5_to_8x8_withRatioIntent) {
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EXPECT_BINEQ(u"λλλλλ "
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u"λλλλλ "
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u"λλλλλ "
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u"¬¬¬╞λTTT"
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u" Tλλλλ"
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u" λλλ"
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u" λλλ"
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u" λλλ",
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BilinearScale(1, 8, 8, tgc(tmalloc(8 * 8)), 1, 5, 5,
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tgc(tunbing(u"λλλ "
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u"λλλ "
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u" λλλ"
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u" λλ"
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u" λλ")),
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0, 1, 8, 8, 5, 5, 2 / 3., 2 / 3., 0, 0));
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}
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TEST(BilinearScale, testWindmill_5x5_to_8x8_withoutRatioIntent) {
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EXPECT_BINEQ(u"λλλλλÅ "
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u"λλλλλÅ "
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u"λλλλλÅ "
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u"╧╧╧╪λñ//"
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u" /λλλλ"
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u" →Å└λλ"
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u" oλλ"
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u" oλλ",
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BilinearScale(1, 8, 8, tgc(tmalloc(8 * 8)), 1, 5, 5,
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tgc(tunbing(u"λλλ "
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u"λλλ "
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u" λλλ"
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u" λλ"
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u" λλ")),
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0, 1, 8, 8, 5, 5, 5 / 8., 5 / 8., 0, 0));
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}
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TEST(BilinearScale, testNyquistTorture) {
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EXPECT_BINEQ(u"███ "
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u"████"
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u" ███"
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u"███ ",
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BilinearScale(1, 4, 4, tgc(tmalloc(4 * 4)), 1, 8, 8,
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tgc(tunbing(u"█ █ █ "
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u" █ █ █ "
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u"█ █ █ █ "
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u" █ █ █ █"
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u" █ █ █ "
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u" █ █ █ "
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u"█ █ █ "
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u" █ █ ")),
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0, 1, 4, 4, 8, 8, 2, 2, 0, 0));
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}
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BENCH(BilinearScale, Bench) {
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void *src, *dst;
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double c, w1, h1, w2, h2;
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c = 3;
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w1 = 1920;
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h1 = 1080;
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w2 = 1136;
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h2 = 136;
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src = tgc(tmemalign(32, w1 * h1 * c));
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dst = tgc(tmemalign(32, w2 * h2 * c));
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EZBENCH2("BilinearScale", donothing,
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BilinearScale(c, h2, w2, dst, c, h1, w1, src, 0, c, h2, w2, h1, w1,
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h2 / h1, w2 / w1, 0, 0));
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}
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