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Monorepo for Aesthetic.Computer aesthetic.computer
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104/* quirc -- QR-code recognition library * Copyright (C) 2010-2012 Daniel Beer <dlbeer@gmail.com> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#include "convert.h"
#define CHANNEL_CLAMP(dst, tmp, lum, chrom) \ (tmp) = ((lum) + (chrom)) >> 8; \ if ((tmp) < 0) \ (tmp) = 0; \ if ((tmp) > 255) \ (tmp) = 255; \ (dst) = (tmp);
void yuyv_to_rgb32(const uint8_t *src, int src_pitch, int w, int h, uint8_t *dst, int dst_pitch){ int y;
for (y = 0; y < h; y++) { int x; const uint8_t *srow = src + y * src_pitch; uint8_t *drow = dst + y * dst_pitch;
for (x = 0; x < w; x += 2) { /* ITU-R colorspace assumed */ int y0 = (int)srow[0] * 256; int y1 = (int)srow[2] * 256; int cr = (int)srow[3] - 128; int cb = (int)srow[1] - 128; int r = cr * 359; int g = -cb * 88 - 128 * cr; int b = 454 * cb; int z;
CHANNEL_CLAMP(drow[0], z, y0, b); CHANNEL_CLAMP(drow[1], z, y0, g); CHANNEL_CLAMP(drow[2], z, y0, r); CHANNEL_CLAMP(drow[4], z, y1, b); CHANNEL_CLAMP(drow[5], z, y1, g); CHANNEL_CLAMP(drow[6], z, y1, r);
srow += 4; drow += 8; } }}
void yuyv_to_luma(const uint8_t *src, int src_pitch, int w, int h, uint8_t *dst, int dst_pitch){ int y;
for (y = 0; y < h; y++) { int x; const uint8_t *srow = src + y * src_pitch; uint8_t *drow = dst + y * dst_pitch;
for (x = 0; x < w; x += 2) { *(drow++) = srow[0]; *(drow++) = srow[2]; srow += 4; } }}
void rgb32_to_luma(const uint8_t *src, int src_pitch, int w, int h, uint8_t *dst, int dst_pitch){ int y;
for (y = 0; y < h; y++) { const uint8_t *rgb32 = src + src_pitch * y; uint8_t *gray = dst + y * dst_pitch; int i;
for (i = 0; i < w; i++) { /* ITU-R colorspace assumed */ int r = (int)rgb32[2]; int g = (int)rgb32[1]; int b = (int)rgb32[0]; int sum = r * 59 + g * 150 + b * 29;
*(gray++) = sum >> 8; rgb32 += 4; } }}