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n8.2-dev
libswscale/bayer_template.c
338 строк
9 KB
Niklas Haas
swscale/internal: constify SwsFunc
07 окт 2024, 20:51
07 окт 2024, 20:51
c1a0e65
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/* * Bayer-to-RGB/YV12 template * Copyright (c) 2011-2014 Peter Ross <pross@xvid.org> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #if defined(BAYER_BGGR) || defined(BAYER_GBRG) #define BAYER_R 0 #define BAYER_G 1 #define BAYER_B 2 #endif #if defined(BAYER_RGGB) || defined(BAYER_GRBG) #define BAYER_R 2 #define BAYER_G 1 #define BAYER_B 0 #endif #if defined(BAYER_8) #define BAYER_READ(x) (x) #define BAYER_SIZEOF 1 #define BAYER_SHIFT 0 #endif #if defined(BAYER_16LE) #define BAYER_READ(x) AV_RL16(&(x)) #define BAYER_SIZEOF 2 #define BAYER_SHIFT 8 #endif #if defined(BAYER_16BE) #define BAYER_READ(x) AV_RB16(&(x)) #define BAYER_SIZEOF 2 #define BAYER_SHIFT 8 #endif #define S(y, x) BAYER_READ(src[(y)*src_stride + BAYER_SIZEOF*(x)]) #define T(y, x) (unsigned int)S(y, x) #define R(y, x) dst[(y)*dst_stride + (x)*3 + BAYER_R] #define G(y, x) dst[(y)*dst_stride + (x)*3 + BAYER_G] #define B(y, x) dst[(y)*dst_stride + (x)*3 + BAYER_B] #if defined(BAYER_BGGR) || defined(BAYER_RGGB) #define BAYER_TO_RGB24_COPY \ R(0, 0) = \ R(0, 1) = \ R(1, 1) = \ R(1, 0) = S(1, 1) >> BAYER_SHIFT; \ \ G(0, 1) = S(0, 1) >> BAYER_SHIFT; \ G(0, 0) = \ G(1, 1) = (T(0, 1) + T(1, 0)) >> (1 + BAYER_SHIFT); \ G(1, 0) = S(1, 0) >> BAYER_SHIFT; \ \ B(1, 1) = \ B(0, 0) = \ B(0, 1) = \ B(1, 0) = S(0, 0) >> BAYER_SHIFT; #define BAYER_TO_RGB24_INTERPOLATE \ R(0, 0) = (T(-1, -1) + T(-1, 1) + T(1, -1) + T(1, 1)) >> (2 + BAYER_SHIFT); \ G(0, 0) = (T(-1, 0) + T( 0, -1) + T(0, 1) + T(1, 0)) >> (2 + BAYER_SHIFT); \ B(0, 0) = S(0, 0) >> BAYER_SHIFT; \ \ R(0, 1) = (T(-1, 1) + T(1, 1)) >> (1 + BAYER_SHIFT); \ G(0, 1) = S(0, 1) >> BAYER_SHIFT; \ B(0, 1) = (T(0, 0) + T(0, 2)) >> (1 + BAYER_SHIFT); \ \ R(1, 0) = (T(1, -1) + T(1, 1)) >> (1 + BAYER_SHIFT); \ G(1, 0) = S(1, 0) >> BAYER_SHIFT; \ B(1, 0) = (T(0, 0) + T(2, 0)) >> (1 + BAYER_SHIFT); \ \ R(1, 1) = S(1, 1) >> BAYER_SHIFT; \ G(1, 1) = (T(0, 1) + T(1, 0) + T(1, 2) + T(2, 1)) >> (2 + BAYER_SHIFT); \ B(1, 1) = (T(0, 0) + T(0, 2) + T(2, 0) + T(2, 2)) >> (2 + BAYER_SHIFT); #else #define BAYER_TO_RGB24_COPY \ R(0, 0) = \ R(0, 1) = \ R(1, 1) = \ R(1, 0) = S(1, 0) >> BAYER_SHIFT; \ \ G(0, 0) = S(0, 0) >> BAYER_SHIFT; \ G(1, 1) = S(1, 1) >> BAYER_SHIFT; \ G(0, 1) = \ G(1, 0) = (T(0, 0) + T(1, 1)) >> (1 + BAYER_SHIFT); \ \ B(1, 1) = \ B(0, 0) = \ B(0, 1) = \ B(1, 0) = S(0, 1) >> BAYER_SHIFT; #define BAYER_TO_RGB24_INTERPOLATE \ R(0, 0) = (T(-1, 0) + T(1, 0)) >> (1 + BAYER_SHIFT); \ G(0, 0) = S(0, 0) >> BAYER_SHIFT; \ B(0, 0) = (T(0, -1) + T(0, 1)) >> (1 + BAYER_SHIFT); \ \ R(0, 1) = (T(-1, 0) + T(-1, 2) + T(1, 0) + T(1, 2)) >> (2 + BAYER_SHIFT); \ G(0, 1) = (T(-1, 1) + T(0, 0) + T(0, 2) + T(1, 1)) >> (2 + BAYER_SHIFT); \ B(0, 1) = S(0, 1) >> BAYER_SHIFT; \ \ R(1, 0) = S(1, 0) >> BAYER_SHIFT; \ G(1, 0) = (T(0, 0) + T(1, -1) + T(1, 1) + T(2, 0)) >> (2 + BAYER_SHIFT); \ B(1, 0) = (T(0, -1) + T(0, 1) + T(2, -1) + T(2, 1)) >> (2 + BAYER_SHIFT); \ \ R(1, 1) = (T(1, 0) + T(1, 2)) >> (1 + BAYER_SHIFT); \ G(1, 1) = S(1, 1) >> BAYER_SHIFT; \ B(1, 1) = (T(0, 1) + T(2, 1)) >> (1 + BAYER_SHIFT); #endif #if defined(BAYER_BGGR) || defined(BAYER_RGGB) #define BAYER_TO_RGB48_COPY \ R(0, 0) = \ R(0, 1) = \ R(1, 1) = \ R(1, 0) = S(1, 1); \ \ G(0, 1) = S(0, 1); \ G(0, 0) = \ G(1, 1) = (T(0, 1) + T(1, 0)) >> 1; \ G(1, 0) = S(1, 0); \ \ B(1, 1) = \ B(0, 0) = \ B(0, 1) = \ B(1, 0) = S(0, 0); #define BAYER_TO_RGB48_INTERPOLATE \ R(0, 0) = (T(-1, -1) + T(-1, 1) + T(1, -1) + T(1, 1)) >> 2; \ G(0, 0) = (T(-1, 0) + T( 0, -1) + T(0, 1) + T(1, 0)) >> 2; \ B(0, 0) = S(0, 0); \ \ R(0, 1) = (T(-1, 1) + T(1, 1)) >> 1; \ G(0, 1) = S(0, 1); \ B(0, 1) = (T(0, 0) + T(0, 2)) >> 1; \ \ R(1, 0) = (T(1, -1) + T(1, 1)) >> 1; \ G(1, 0) = S(1, 0); \ B(1, 0) = (T(0, 0) + T(2, 0)) >> 1; \ \ R(1, 1) = S(1, 1); \ G(1, 1) = (T(0, 1) + T(1, 0) + T(1, 2) + T(2, 1)) >> 2; \ B(1, 1) = (T(0, 0) + T(0, 2) + T(2, 0) + T(2, 2)) >> 2; #else #define BAYER_TO_RGB48_COPY \ R(0, 0) = \ R(0, 1) = \ R(1, 1) = \ R(1, 0) = S(1, 0); \ \ G(0, 0) = S(0, 0); \ G(1, 1) = S(1, 1); \ G(0, 1) = \ G(1, 0) = (T(0, 0) + T(1, 1)) >> 1; \ \ B(1, 1) = \ B(0, 0) = \ B(0, 1) = \ B(1, 0) = S(0, 1); #define BAYER_TO_RGB48_INTERPOLATE \ R(0, 0) = (T(-1, 0) + T(1, 0)) >> 1; \ G(0, 0) = S(0, 0); \ B(0, 0) = (T(0, -1) + T(0, 1)) >> 1; \ \ R(0, 1) = (T(-1, 0) + T(-1, 2) + T(1, 0) + T(1, 2)) >> 2; \ G(0, 1) = (T(-1, 1) + T(0, 0) + T(0, 2) + T(1, 1)) >> 2; \ B(0, 1) = S(0, 1); \ \ R(1, 0) = S(1, 0); \ G(1, 0) = (T(0, 0) + T(1, -1) + T(1, 1) + T(2, 0)) >> 2; \ B(1, 0) = (T(0, -1) + T(0, 1) + T(2, -1) + T(2, 1)) >> 2; \ \ R(1, 1) = (T(1, 0) + T(1, 2)) >> 1; \ G(1, 1) = S(1, 1); \ B(1, 1) = (T(0, 1) + T(2, 1)) >> 1; #endif /** * invoke ff_rgb24toyv12 for 2x2 pixels */ #define rgb24toyv12_2x2(src, dstY, dstU, dstV, luma_stride, src_stride, rgb2yuv) \ ff_rgb24toyv12(src, dstY, dstV, dstU, 2, 2, luma_stride, 0, src_stride, rgb2yuv) static void BAYER_RENAME(rgb24_copy)(const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width) { int i; for (i = 0 ; i < width; i+= 2) { BAYER_TO_RGB24_COPY src += 2 * BAYER_SIZEOF; dst += 6; } } static void BAYER_RENAME(rgb24_interpolate)(const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width) { int i; BAYER_TO_RGB24_COPY src += 2 * BAYER_SIZEOF; dst += 6; for (i = 2 ; i < width - 2; i+= 2) { BAYER_TO_RGB24_INTERPOLATE src += 2 * BAYER_SIZEOF; dst += 6; } if (width > 2) { BAYER_TO_RGB24_COPY } } static void BAYER_RENAME(rgb48_copy)(const uint8_t *src, int src_stride, uint8_t *ddst, int dst_stride, int width) { uint16_t *dst = (uint16_t *)ddst; int i; dst_stride /= 2; for (i = 0 ; i < width; i+= 2) { BAYER_TO_RGB48_COPY src += 2 * BAYER_SIZEOF; dst += 6; } } static void BAYER_RENAME(rgb48_interpolate)(const uint8_t *src, int src_stride, uint8_t *ddst, int dst_stride, int width) { uint16_t *dst = (uint16_t *)ddst; int i; dst_stride /= 2; BAYER_TO_RGB48_COPY src += 2 * BAYER_SIZEOF; dst += 6; for (i = 2 ; i < width - 2; i+= 2) { BAYER_TO_RGB48_INTERPOLATE src += 2 * BAYER_SIZEOF; dst += 6; } if (width > 2) { BAYER_TO_RGB48_COPY } } static void BAYER_RENAME(yv12_copy)(const uint8_t *src, int src_stride, uint8_t *dstY, uint8_t *dstU, uint8_t *dstV, int luma_stride, int width, const int32_t *rgb2yuv) { uint8_t dst[12]; const int dst_stride = 6; int i; for (i = 0 ; i < width; i+= 2) { BAYER_TO_RGB24_COPY rgb24toyv12_2x2(dst, dstY, dstU, dstV, luma_stride, dst_stride, rgb2yuv); src += 2 * BAYER_SIZEOF; dstY += 2; dstU++; dstV++; } } static void BAYER_RENAME(yv12_interpolate)(const uint8_t *src, int src_stride, uint8_t *dstY, uint8_t *dstU, uint8_t *dstV, int luma_stride, int width, const int32_t *rgb2yuv) { uint8_t dst[12]; const int dst_stride = 6; int i; BAYER_TO_RGB24_COPY rgb24toyv12_2x2(dst, dstY, dstU, dstV, luma_stride, dst_stride, rgb2yuv); src += 2 * BAYER_SIZEOF; dstY += 2; dstU++; dstV++; for (i = 2 ; i < width - 2; i+= 2) { BAYER_TO_RGB24_INTERPOLATE rgb24toyv12_2x2(dst, dstY, dstU, dstV, luma_stride, dst_stride, rgb2yuv); src += 2 * BAYER_SIZEOF; dstY += 2; dstU++; dstV++; } if (width > 2) { BAYER_TO_RGB24_COPY rgb24toyv12_2x2(dst, dstY, dstU, dstV, luma_stride, dst_stride, rgb2yuv); } } #undef S #undef T #undef R #undef G #undef B #undef BAYER_TO_RGB24_COPY #undef BAYER_TO_RGB24_INTERPOLATE #undef BAYER_TO_RGB48_COPY #undef BAYER_TO_RGB48_INTERPOLATE #undef BAYER_RENAME #undef BAYER_R #undef BAYER_G #undef BAYER_B #undef BAYER_READ #undef BAYER_SIZEOF #undef BAYER_SHIFT #if defined(BAYER_BGGR) #undef BAYER_BGGR #endif #if defined(BAYER_RGGB) #undef BAYER_RGGB #endif #if defined(BAYER_GBRG) #undef BAYER_GBRG #endif #if defined(BAYER_GRBG) #undef BAYER_GRBG #endif #if defined(BAYER_8) #undef BAYER_8 #endif #if defined(BAYER_16LE) #undef BAYER_16LE #endif #if defined(BAYER_16BE) #undef BAYER_16BE #endif