42 lines
2.4 KiB
C
42 lines
2.4 KiB
C
/*-*- 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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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "dsp/tty/quant.h"
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#include "libc/math.h"
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/*
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struct TtyRgb rgb2tty24f_(__m128 rgb) {
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const __v4si kMax = {255, 255, 255, 255};
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const __v4si kMin = {0, 0, 0, 0};
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struct TtyRgb res;
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__v4si rgb255;
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rgb255 = _mm_min_ps(_mm_max_ps(_mm_cvtps_epi32(rgb * 255), kMin), kMax);
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res = (struct TtyRgb){rgb255[0], rgb255[1], rgb255[2], rgb255[3]};
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return res;
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}
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*/
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struct TtyRgb rgb2tty24f_(__m128 rgb) {
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const __m128 kMax = {1, 1, 1, 1};
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const __m128 kMin = {0, 0, 0, 0};
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struct TtyRgb res;
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rgb = _mm_min_ps(_mm_max_ps(rgb, kMin), kMax) * 255;
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res = (struct TtyRgb){rgb[0], rgb[1], rgb[2], rgb[3]};
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return res;
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}
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