| /* |
| * 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 |
| |
| /** |
| * 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(yv12_copy)(const uint8_t *src, int src_stride, uint8_t *dstY, uint8_t *dstU, uint8_t *dstV, int luma_stride, int width, 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, 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_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 |
