43 lines
2.5 KiB
C
43 lines
2.5 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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│ 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 "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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