mirror of https://git.ffmpeg.org/ffmpeg.git
346 lines
12 KiB
C
346 lines
12 KiB
C
/*
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* software RGB to RGB converter
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* pluralize by software PAL8 to RGB converter
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* software YUV to YUV converter
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* software YUV to RGB converter
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* Written by Nick Kurshev.
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* palette & YUV & runtime CPU stuff by Michael (michaelni@gmx.at)
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <inttypes.h>
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#include "config.h"
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#include "libavutil/bswap.h"
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#include "rgb2rgb.h"
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#include "swscale.h"
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#include "swscale_internal.h"
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void (*rgb24tobgr32)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb24tobgr16)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb24tobgr15)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb32tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb32to16)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb32to15)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb15to16)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb15tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb15to32)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb16to15)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb16tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb16to32)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb24tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb24to16)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb24to15)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*shuffle_bytes_2103)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb32tobgr16)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*rgb32tobgr15)(const uint8_t *src, uint8_t *dst, long src_size);
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void (*yv12toyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
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long width, long height,
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long lumStride, long chromStride, long dstStride);
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void (*yv12touyvy)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
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long width, long height,
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long lumStride, long chromStride, long dstStride);
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void (*yuv422ptoyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
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long width, long height,
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long lumStride, long chromStride, long dstStride);
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void (*yuv422ptouyvy)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
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long width, long height,
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long lumStride, long chromStride, long dstStride);
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void (*yuy2toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
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long width, long height,
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long lumStride, long chromStride, long srcStride);
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void (*rgb24toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
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long width, long height,
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long lumStride, long chromStride, long srcStride);
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void (*planar2x)(const uint8_t *src, uint8_t *dst, long width, long height,
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long srcStride, long dstStride);
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void (*interleaveBytes)(const uint8_t *src1, const uint8_t *src2, uint8_t *dst,
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long width, long height, long src1Stride,
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long src2Stride, long dstStride);
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void (*vu9_to_vu12)(const uint8_t *src1, const uint8_t *src2,
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uint8_t *dst1, uint8_t *dst2,
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long width, long height,
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long srcStride1, long srcStride2,
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long dstStride1, long dstStride2);
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void (*yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2, const uint8_t *src3,
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uint8_t *dst,
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long width, long height,
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long srcStride1, long srcStride2,
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long srcStride3, long dstStride);
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void (*uyvytoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src,
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long width, long height,
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long lumStride, long chromStride, long srcStride);
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void (*uyvytoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src,
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long width, long height,
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long lumStride, long chromStride, long srcStride);
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void (*yuyvtoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src,
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long width, long height,
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long lumStride, long chromStride, long srcStride);
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void (*yuyvtoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src,
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long width, long height,
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long lumStride, long chromStride, long srcStride);
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#define RGB2YUV_SHIFT 8
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#define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
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#define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
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#define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
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#define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
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#define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
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#define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
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#define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
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#define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
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#define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
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//plain C versions
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#include "rgb2rgb_template.c"
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/*
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RGB15->RGB16 original by Strepto/Astral
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ported to gcc & bugfixed : A'rpi
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MMX2, 3DNOW optimization by Nick Kurshev
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32-bit C version, and and&add trick by Michael Niedermayer
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*/
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void sws_rgb2rgb_init(void)
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{
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rgb2rgb_init_c();
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if (HAVE_MMX)
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rgb2rgb_init_x86();
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}
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#if LIBSWSCALE_VERSION_MAJOR < 1
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void palette8topacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
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{
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sws_convertPalette8ToPacked32(src, dst, num_pixels, palette);
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}
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void palette8topacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
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{
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sws_convertPalette8ToPacked24(src, dst, num_pixels, palette);
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}
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/**
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* Palette is assumed to contain BGR16, see rgb32to16 to convert the palette.
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*/
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void palette8torgb16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
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{
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long i;
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for (i=0; i<num_pixels; i++)
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((uint16_t *)dst)[i] = ((const uint16_t *)palette)[src[i]];
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}
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void palette8tobgr16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
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{
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long i;
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for (i=0; i<num_pixels; i++)
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((uint16_t *)dst)[i] = av_bswap16(((const uint16_t *)palette)[src[i]]);
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}
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#endif
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void rgb32to24(const uint8_t *src, uint8_t *dst, long src_size)
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{
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long i;
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long num_pixels = src_size >> 2;
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for (i=0; i<num_pixels; i++) {
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#if HAVE_BIGENDIAN
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/* RGB32 (= A,B,G,R) -> BGR24 (= B,G,R) */
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dst[3*i + 0] = src[4*i + 1];
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dst[3*i + 1] = src[4*i + 2];
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dst[3*i + 2] = src[4*i + 3];
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#else
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dst[3*i + 0] = src[4*i + 2];
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dst[3*i + 1] = src[4*i + 1];
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dst[3*i + 2] = src[4*i + 0];
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#endif
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}
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}
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void rgb24to32(const uint8_t *src, uint8_t *dst, long src_size)
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{
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long i;
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for (i=0; 3*i<src_size; i++) {
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#if HAVE_BIGENDIAN
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/* RGB24 (= R,G,B) -> BGR32 (= A,R,G,B) */
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dst[4*i + 0] = 255;
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dst[4*i + 1] = src[3*i + 0];
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dst[4*i + 2] = src[3*i + 1];
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dst[4*i + 3] = src[3*i + 2];
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#else
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dst[4*i + 0] = src[3*i + 2];
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dst[4*i + 1] = src[3*i + 1];
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dst[4*i + 2] = src[3*i + 0];
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dst[4*i + 3] = 255;
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#endif
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}
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}
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void rgb16tobgr32(const uint8_t *src, uint8_t *dst, long src_size)
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{
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const uint16_t *end;
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uint8_t *d = dst;
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const uint16_t *s = (const uint16_t *)src;
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end = s + src_size/2;
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while (s < end) {
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register uint16_t bgr;
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bgr = *s++;
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#if HAVE_BIGENDIAN
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*d++ = 255;
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*d++ = (bgr&0x1F)<<3;
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*d++ = (bgr&0x7E0)>>3;
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*d++ = (bgr&0xF800)>>8;
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#else
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*d++ = (bgr&0xF800)>>8;
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*d++ = (bgr&0x7E0)>>3;
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*d++ = (bgr&0x1F)<<3;
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*d++ = 255;
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#endif
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}
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}
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void rgb16to24(const uint8_t *src, uint8_t *dst, long src_size)
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{
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const uint16_t *end;
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uint8_t *d = dst;
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const uint16_t *s = (const uint16_t *)src;
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end = s + src_size/2;
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while (s < end) {
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register uint16_t bgr;
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bgr = *s++;
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*d++ = (bgr&0xF800)>>8;
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*d++ = (bgr&0x7E0)>>3;
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*d++ = (bgr&0x1F)<<3;
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}
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}
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void rgb16tobgr16(const uint8_t *src, uint8_t *dst, long src_size)
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{
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long i;
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long num_pixels = src_size >> 1;
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for (i=0; i<num_pixels; i++) {
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unsigned rgb = ((const uint16_t*)src)[i];
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((uint16_t*)dst)[i] = (rgb>>11) | (rgb&0x7E0) | (rgb<<11);
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}
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}
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void rgb16tobgr15(const uint8_t *src, uint8_t *dst, long src_size)
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{
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long i;
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long num_pixels = src_size >> 1;
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for (i=0; i<num_pixels; i++) {
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unsigned rgb = ((const uint16_t*)src)[i];
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((uint16_t*)dst)[i] = (rgb>>11) | ((rgb&0x7C0)>>1) | ((rgb&0x1F)<<10);
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}
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}
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void rgb15tobgr32(const uint8_t *src, uint8_t *dst, long src_size)
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{
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const uint16_t *end;
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uint8_t *d = dst;
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const uint16_t *s = (const uint16_t *)src;
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end = s + src_size/2;
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while (s < end) {
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register uint16_t bgr;
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bgr = *s++;
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#if HAVE_BIGENDIAN
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*d++ = 255;
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*d++ = (bgr&0x1F)<<3;
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*d++ = (bgr&0x3E0)>>2;
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*d++ = (bgr&0x7C00)>>7;
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#else
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*d++ = (bgr&0x7C00)>>7;
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*d++ = (bgr&0x3E0)>>2;
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*d++ = (bgr&0x1F)<<3;
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*d++ = 255;
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#endif
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}
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}
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void rgb15to24(const uint8_t *src, uint8_t *dst, long src_size)
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{
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const uint16_t *end;
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uint8_t *d = dst;
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const uint16_t *s = (const uint16_t *)src;
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end = s + src_size/2;
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while (s < end) {
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register uint16_t bgr;
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bgr = *s++;
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*d++ = (bgr&0x7C00)>>7;
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*d++ = (bgr&0x3E0)>>2;
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*d++ = (bgr&0x1F)<<3;
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}
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}
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void rgb15tobgr16(const uint8_t *src, uint8_t *dst, long src_size)
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{
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long i;
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long num_pixels = src_size >> 1;
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for (i=0; i<num_pixels; i++) {
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unsigned rgb = ((const uint16_t*)src)[i];
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((uint16_t*)dst)[i] = ((rgb&0x7C00)>>10) | ((rgb&0x3E0)<<1) | (rgb<<11);
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}
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}
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void rgb15tobgr15(const uint8_t *src, uint8_t *dst, long src_size)
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{
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long i;
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long num_pixels = src_size >> 1;
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for (i=0; i<num_pixels; i++) {
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unsigned br;
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unsigned rgb = ((const uint16_t*)src)[i];
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br = rgb&0x7c1F;
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((uint16_t*)dst)[i] = (br>>10) | (rgb&0x3E0) | (br<<10);
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}
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}
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void bgr8torgb8(const uint8_t *src, uint8_t *dst, long src_size)
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{
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long i;
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long num_pixels = src_size;
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for (i=0; i<num_pixels; i++) {
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unsigned b,g,r;
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register uint8_t rgb;
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rgb = src[i];
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r = (rgb&0x07);
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g = (rgb&0x38)>>3;
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b = (rgb&0xC0)>>6;
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dst[i] = ((b<<1)&0x07) | ((g&0x07)<<3) | ((r&0x03)<<6);
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}
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}
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#define DEFINE_SHUFFLE_BYTES(a, b, c, d) \
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void shuffle_bytes_##a##b##c##d(const uint8_t *src, uint8_t *dst, long src_size) \
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{ \
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long i; \
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\
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for (i = 0; i < src_size; i+=4) { \
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dst[i + 0] = src[i + a]; \
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dst[i + 1] = src[i + b]; \
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dst[i + 2] = src[i + c]; \
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dst[i + 3] = src[i + d]; \
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} \
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}
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DEFINE_SHUFFLE_BYTES(0, 3, 2, 1);
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DEFINE_SHUFFLE_BYTES(1, 2, 3, 0);
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DEFINE_SHUFFLE_BYTES(3, 0, 1, 2);
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DEFINE_SHUFFLE_BYTES(3, 2, 1, 0);
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