mirror of https://git.ffmpeg.org/ffmpeg.git
809 lines
25 KiB
C
809 lines
25 KiB
C
/*
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* software YUV to RGB converter
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*
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* Copyright (C) 2009 Konstantin Shishkov
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*
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* 1,4,8bpp support and context / deglobalize stuff
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* by Michael Niedermayer (michaelni@gmx.at)
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*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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 <stdio.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include <assert.h>
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#include "config.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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#include "libavutil/cpu.h"
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#include "libavutil/bswap.h"
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extern const uint8_t dither_4x4_16[4][8];
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extern const uint8_t dither_8x8_32[8][8];
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extern const uint8_t dither_8x8_73[8][8];
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extern const uint8_t dither_8x8_220[8][8];
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const int32_t ff_yuv2rgb_coeffs[8][4] = {
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{117504, 138453, 13954, 34903}, /* no sequence_display_extension */
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{117504, 138453, 13954, 34903}, /* ITU-R Rec. 709 (1990) */
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{104597, 132201, 25675, 53279}, /* unspecified */
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{104597, 132201, 25675, 53279}, /* reserved */
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{104448, 132798, 24759, 53109}, /* FCC */
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{104597, 132201, 25675, 53279}, /* ITU-R Rec. 624-4 System B, G */
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{104597, 132201, 25675, 53279}, /* SMPTE 170M */
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{117579, 136230, 16907, 35559} /* SMPTE 240M (1987) */
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};
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const int *sws_getCoefficients(int colorspace)
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{
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if (colorspace > 7 || colorspace < 0)
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colorspace = SWS_CS_DEFAULT;
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return ff_yuv2rgb_coeffs[colorspace];
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}
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#define LOADCHROMA(i) \
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U = pu[i]; \
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V = pv[i]; \
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r = (void *)c->table_rV[V]; \
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g = (void *)(c->table_gU[U] + c->table_gV[V]); \
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b = (void *)c->table_bU[U];
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#define PUTRGB(dst,src,i) \
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Y = src[2*i]; \
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dst[2*i ] = r[Y] + g[Y] + b[Y]; \
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Y = src[2*i+1]; \
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dst[2*i+1] = r[Y] + g[Y] + b[Y];
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#define PUTRGB24(dst,src,i) \
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Y = src[2*i]; \
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dst[6*i+0] = r[Y]; dst[6*i+1] = g[Y]; dst[6*i+2] = b[Y]; \
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Y = src[2*i+1]; \
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dst[6*i+3] = r[Y]; dst[6*i+4] = g[Y]; dst[6*i+5] = b[Y];
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#define PUTBGR24(dst,src,i) \
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Y = src[2*i]; \
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dst[6*i+0] = b[Y]; dst[6*i+1] = g[Y]; dst[6*i+2] = r[Y]; \
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Y = src[2*i+1]; \
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dst[6*i+3] = b[Y]; dst[6*i+4] = g[Y]; dst[6*i+5] = r[Y];
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#define PUTRGBA(dst,ysrc,asrc,i,s) \
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Y = ysrc[2*i]; \
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dst[2*i ] = r[Y] + g[Y] + b[Y] + (asrc[2*i ]<<s); \
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Y = ysrc[2*i+1]; \
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dst[2*i+1] = r[Y] + g[Y] + b[Y] + (asrc[2*i+1]<<s);
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#define PUTRGB48(dst,src,i) \
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Y = src[2*i]; \
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dst[12*i+ 0] = dst[12*i+ 1] = r[Y]; \
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dst[12*i+ 2] = dst[12*i+ 3] = g[Y]; \
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dst[12*i+ 4] = dst[12*i+ 5] = b[Y]; \
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Y = src[2*i+1]; \
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dst[12*i+ 6] = dst[12*i+ 7] = r[Y]; \
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dst[12*i+ 8] = dst[12*i+ 9] = g[Y]; \
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dst[12*i+10] = dst[12*i+11] = b[Y];
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#define PUTBGR48(dst,src,i) \
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Y = src[2*i]; \
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dst[12*i+ 0] = dst[12*i+ 1] = b[Y]; \
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dst[12*i+ 2] = dst[12*i+ 3] = g[Y]; \
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dst[12*i+ 4] = dst[12*i+ 5] = r[Y]; \
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Y = src[2*i+1]; \
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dst[12*i+ 6] = dst[12*i+ 7] = b[Y]; \
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dst[12*i+ 8] = dst[12*i+ 9] = g[Y]; \
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dst[12*i+10] = dst[12*i+11] = r[Y];
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#define YUV2RGBFUNC(func_name, dst_type, alpha) \
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static int func_name(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, \
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int srcSliceH, uint8_t* dst[], int dstStride[]) \
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{\
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int y;\
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\
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if (!alpha && c->srcFormat == PIX_FMT_YUV422P) {\
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srcStride[1] *= 2;\
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srcStride[2] *= 2;\
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}\
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for (y=0; y<srcSliceH; y+=2) {\
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dst_type *dst_1 = (dst_type*)(dst[0] + (y+srcSliceY )*dstStride[0]);\
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dst_type *dst_2 = (dst_type*)(dst[0] + (y+srcSliceY+1)*dstStride[0]);\
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dst_type av_unused *r, *b;\
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dst_type *g;\
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const uint8_t *py_1 = src[0] + y*srcStride[0];\
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const uint8_t *py_2 = py_1 + srcStride[0];\
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const uint8_t *pu = src[1] + (y>>1)*srcStride[1];\
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const uint8_t *pv = src[2] + (y>>1)*srcStride[2];\
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const uint8_t av_unused *pa_1, *pa_2;\
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unsigned int h_size = c->dstW>>3;\
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if (alpha) {\
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pa_1 = src[3] + y*srcStride[3];\
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pa_2 = pa_1 + srcStride[3];\
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}\
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while (h_size--) {\
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int av_unused U, V;\
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int Y;\
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#define ENDYUV2RGBLINE(dst_delta)\
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pu += 4;\
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pv += 4;\
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py_1 += 8;\
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py_2 += 8;\
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dst_1 += dst_delta;\
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dst_2 += dst_delta;\
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}\
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if (c->dstW & 4) {\
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int av_unused Y, U, V;\
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#define ENDYUV2RGBFUNC()\
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}\
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}\
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return srcSliceH;\
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}
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#define CLOSEYUV2RGBFUNC(dst_delta)\
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ENDYUV2RGBLINE(dst_delta)\
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ENDYUV2RGBFUNC()
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YUV2RGBFUNC(yuv2rgb_c_48, uint8_t, 0)
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LOADCHROMA(0);
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PUTRGB48(dst_1,py_1,0);
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PUTRGB48(dst_2,py_2,0);
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LOADCHROMA(1);
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PUTRGB48(dst_2,py_2,1);
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PUTRGB48(dst_1,py_1,1);
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LOADCHROMA(2);
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PUTRGB48(dst_1,py_1,2);
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PUTRGB48(dst_2,py_2,2);
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LOADCHROMA(3);
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PUTRGB48(dst_2,py_2,3);
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PUTRGB48(dst_1,py_1,3);
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ENDYUV2RGBLINE(48)
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LOADCHROMA(0);
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PUTRGB48(dst_1,py_1,0);
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PUTRGB48(dst_2,py_2,0);
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LOADCHROMA(1);
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PUTRGB48(dst_2,py_2,1);
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PUTRGB48(dst_1,py_1,1);
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ENDYUV2RGBFUNC()
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YUV2RGBFUNC(yuv2rgb_c_bgr48, uint8_t, 0)
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LOADCHROMA(0);
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PUTBGR48(dst_1,py_1,0);
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PUTBGR48(dst_2,py_2,0);
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LOADCHROMA(1);
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PUTBGR48(dst_2,py_2,1);
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PUTBGR48(dst_1,py_1,1);
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LOADCHROMA(2);
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PUTBGR48(dst_1,py_1,2);
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PUTBGR48(dst_2,py_2,2);
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LOADCHROMA(3);
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PUTBGR48(dst_2,py_2,3);
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PUTBGR48(dst_1,py_1,3);
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ENDYUV2RGBLINE(48)
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LOADCHROMA(0);
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PUTBGR48(dst_1,py_1,0);
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PUTBGR48(dst_2,py_2,0);
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LOADCHROMA(1);
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PUTBGR48(dst_2,py_2,1);
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PUTBGR48(dst_1,py_1,1);
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ENDYUV2RGBFUNC()
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YUV2RGBFUNC(yuv2rgb_c_32, uint32_t, 0)
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LOADCHROMA(0);
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PUTRGB(dst_1,py_1,0);
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PUTRGB(dst_2,py_2,0);
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LOADCHROMA(1);
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PUTRGB(dst_2,py_2,1);
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PUTRGB(dst_1,py_1,1);
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LOADCHROMA(2);
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PUTRGB(dst_1,py_1,2);
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PUTRGB(dst_2,py_2,2);
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LOADCHROMA(3);
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PUTRGB(dst_2,py_2,3);
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PUTRGB(dst_1,py_1,3);
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ENDYUV2RGBLINE(8)
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LOADCHROMA(0);
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PUTRGB(dst_1,py_1,0);
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PUTRGB(dst_2,py_2,0);
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LOADCHROMA(1);
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PUTRGB(dst_2,py_2,1);
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PUTRGB(dst_1,py_1,1);
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ENDYUV2RGBFUNC()
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YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)
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LOADCHROMA(0);
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PUTRGBA(dst_1,py_1,pa_1,0,24);
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PUTRGBA(dst_2,py_2,pa_2,0,24);
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LOADCHROMA(1);
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PUTRGBA(dst_2,py_2,pa_1,1,24);
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PUTRGBA(dst_1,py_1,pa_2,1,24);
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LOADCHROMA(2);
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PUTRGBA(dst_1,py_1,pa_1,2,24);
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PUTRGBA(dst_2,py_2,pa_2,2,24);
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LOADCHROMA(3);
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PUTRGBA(dst_2,py_2,pa_1,3,24);
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PUTRGBA(dst_1,py_1,pa_2,3,24);
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pa_1 += 8;\
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pa_2 += 8;\
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ENDYUV2RGBLINE(8)
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LOADCHROMA(0);
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PUTRGBA(dst_1,py_1,pa_1,0,24);
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PUTRGBA(dst_2,py_2,pa_2,0,24);
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LOADCHROMA(1);
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PUTRGBA(dst_2,py_2,pa_1,1,24);
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PUTRGBA(dst_1,py_1,pa_2,1,24);
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ENDYUV2RGBFUNC()
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YUV2RGBFUNC(yuva2argb_c, uint32_t, 1)
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LOADCHROMA(0);
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PUTRGBA(dst_1,py_1,pa_1,0,0);
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PUTRGBA(dst_2,py_2,pa_2,0,0);
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LOADCHROMA(1);
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PUTRGBA(dst_2,py_2,pa_2,1,0);
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PUTRGBA(dst_1,py_1,pa_1,1,0);
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LOADCHROMA(2);
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PUTRGBA(dst_1,py_1,pa_1,2,0);
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PUTRGBA(dst_2,py_2,pa_2,2,0);
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LOADCHROMA(3);
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PUTRGBA(dst_2,py_2,pa_2,3,0);
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PUTRGBA(dst_1,py_1,pa_1,3,0);
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pa_1 += 8;\
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pa_2 += 8;\
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ENDYUV2RGBLINE(8)
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LOADCHROMA(0);
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PUTRGBA(dst_1,py_1,pa_1,0,0);
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PUTRGBA(dst_2,py_2,pa_2,0,0);
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LOADCHROMA(1);
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PUTRGBA(dst_2,py_2,pa_2,1,0);
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PUTRGBA(dst_1,py_1,pa_1,1,0);
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ENDYUV2RGBFUNC()
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YUV2RGBFUNC(yuv2rgb_c_24_rgb, uint8_t, 0)
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LOADCHROMA(0);
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PUTRGB24(dst_1,py_1,0);
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PUTRGB24(dst_2,py_2,0);
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LOADCHROMA(1);
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PUTRGB24(dst_2,py_2,1);
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PUTRGB24(dst_1,py_1,1);
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LOADCHROMA(2);
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PUTRGB24(dst_1,py_1,2);
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PUTRGB24(dst_2,py_2,2);
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LOADCHROMA(3);
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PUTRGB24(dst_2,py_2,3);
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PUTRGB24(dst_1,py_1,3);
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ENDYUV2RGBLINE(24)
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LOADCHROMA(0);
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PUTRGB24(dst_1,py_1,0);
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PUTRGB24(dst_2,py_2,0);
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LOADCHROMA(1);
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PUTRGB24(dst_2,py_2,1);
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PUTRGB24(dst_1,py_1,1);
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ENDYUV2RGBFUNC()
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// only trivial mods from yuv2rgb_c_24_rgb
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YUV2RGBFUNC(yuv2rgb_c_24_bgr, uint8_t, 0)
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LOADCHROMA(0);
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PUTBGR24(dst_1,py_1,0);
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PUTBGR24(dst_2,py_2,0);
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LOADCHROMA(1);
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PUTBGR24(dst_2,py_2,1);
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PUTBGR24(dst_1,py_1,1);
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LOADCHROMA(2);
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PUTBGR24(dst_1,py_1,2);
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PUTBGR24(dst_2,py_2,2);
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LOADCHROMA(3);
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PUTBGR24(dst_2,py_2,3);
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PUTBGR24(dst_1,py_1,3);
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ENDYUV2RGBLINE(24)
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LOADCHROMA(0);
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PUTBGR24(dst_1,py_1,0);
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PUTBGR24(dst_2,py_2,0);
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LOADCHROMA(1);
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PUTBGR24(dst_2,py_2,1);
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PUTBGR24(dst_1,py_1,1);
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ENDYUV2RGBFUNC()
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// This is exactly the same code as yuv2rgb_c_32 except for the types of
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// r, g, b, dst_1, dst_2
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YUV2RGBFUNC(yuv2rgb_c_16, uint16_t, 0)
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LOADCHROMA(0);
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PUTRGB(dst_1,py_1,0);
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PUTRGB(dst_2,py_2,0);
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LOADCHROMA(1);
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PUTRGB(dst_2,py_2,1);
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PUTRGB(dst_1,py_1,1);
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LOADCHROMA(2);
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PUTRGB(dst_1,py_1,2);
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PUTRGB(dst_2,py_2,2);
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LOADCHROMA(3);
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PUTRGB(dst_2,py_2,3);
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PUTRGB(dst_1,py_1,3);
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CLOSEYUV2RGBFUNC(8)
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// r, g, b, dst_1, dst_2
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YUV2RGBFUNC(yuv2rgb_c_12_ordered_dither, uint16_t, 0)
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const uint8_t *d16 = dither_4x4_16[y&3];
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#define PUTRGB12(dst,src,i,o) \
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Y = src[2*i]; \
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dst[2*i] = r[Y+d16[0+o]] + g[Y+d16[0+o]] + b[Y+d16[0+o]]; \
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Y = src[2*i+1]; \
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dst[2*i+1] = r[Y+d16[1+o]] + g[Y+d16[1+o]] + b[Y+d16[1+o]];
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LOADCHROMA(0);
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PUTRGB12(dst_1,py_1,0,0);
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PUTRGB12(dst_2,py_2,0,0+8);
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LOADCHROMA(1);
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PUTRGB12(dst_2,py_2,1,2+8);
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PUTRGB12(dst_1,py_1,1,2);
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LOADCHROMA(2);
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PUTRGB12(dst_1,py_1,2,4);
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PUTRGB12(dst_2,py_2,2,4+8);
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LOADCHROMA(3);
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PUTRGB12(dst_2,py_2,3,6+8);
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PUTRGB12(dst_1,py_1,3,6);
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CLOSEYUV2RGBFUNC(8)
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// r, g, b, dst_1, dst_2
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YUV2RGBFUNC(yuv2rgb_c_8_ordered_dither, uint8_t, 0)
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const uint8_t *d32 = dither_8x8_32[y&7];
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const uint8_t *d64 = dither_8x8_73[y&7];
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#define PUTRGB8(dst,src,i,o) \
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Y = src[2*i]; \
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dst[2*i] = r[Y+d32[0+o]] + g[Y+d32[0+o]] + b[Y+d64[0+o]]; \
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Y = src[2*i+1]; \
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dst[2*i+1] = r[Y+d32[1+o]] + g[Y+d32[1+o]] + b[Y+d64[1+o]];
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LOADCHROMA(0);
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PUTRGB8(dst_1,py_1,0,0);
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PUTRGB8(dst_2,py_2,0,0+8);
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LOADCHROMA(1);
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PUTRGB8(dst_2,py_2,1,2+8);
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PUTRGB8(dst_1,py_1,1,2);
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LOADCHROMA(2);
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PUTRGB8(dst_1,py_1,2,4);
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PUTRGB8(dst_2,py_2,2,4+8);
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LOADCHROMA(3);
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PUTRGB8(dst_2,py_2,3,6+8);
|
|
PUTRGB8(dst_1,py_1,3,6);
|
|
CLOSEYUV2RGBFUNC(8)
|
|
|
|
YUV2RGBFUNC(yuv2rgb_c_4_ordered_dither, uint8_t, 0)
|
|
const uint8_t *d64 = dither_8x8_73[y&7];
|
|
const uint8_t *d128 = dither_8x8_220[y&7];
|
|
int acc;
|
|
|
|
#define PUTRGB4D(dst,src,i,o) \
|
|
Y = src[2*i]; \
|
|
acc = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
|
|
Y = src[2*i+1]; \
|
|
acc |= (r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]])<<4; \
|
|
dst[i]= acc;
|
|
|
|
LOADCHROMA(0);
|
|
PUTRGB4D(dst_1,py_1,0,0);
|
|
PUTRGB4D(dst_2,py_2,0,0+8);
|
|
|
|
LOADCHROMA(1);
|
|
PUTRGB4D(dst_2,py_2,1,2+8);
|
|
PUTRGB4D(dst_1,py_1,1,2);
|
|
|
|
LOADCHROMA(2);
|
|
PUTRGB4D(dst_1,py_1,2,4);
|
|
PUTRGB4D(dst_2,py_2,2,4+8);
|
|
|
|
LOADCHROMA(3);
|
|
PUTRGB4D(dst_2,py_2,3,6+8);
|
|
PUTRGB4D(dst_1,py_1,3,6);
|
|
CLOSEYUV2RGBFUNC(4)
|
|
|
|
YUV2RGBFUNC(yuv2rgb_c_4b_ordered_dither, uint8_t, 0)
|
|
const uint8_t *d64 = dither_8x8_73[y&7];
|
|
const uint8_t *d128 = dither_8x8_220[y&7];
|
|
|
|
#define PUTRGB4DB(dst,src,i,o) \
|
|
Y = src[2*i]; \
|
|
dst[2*i] = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
|
|
Y = src[2*i+1]; \
|
|
dst[2*i+1] = r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]];
|
|
|
|
LOADCHROMA(0);
|
|
PUTRGB4DB(dst_1,py_1,0,0);
|
|
PUTRGB4DB(dst_2,py_2,0,0+8);
|
|
|
|
LOADCHROMA(1);
|
|
PUTRGB4DB(dst_2,py_2,1,2+8);
|
|
PUTRGB4DB(dst_1,py_1,1,2);
|
|
|
|
LOADCHROMA(2);
|
|
PUTRGB4DB(dst_1,py_1,2,4);
|
|
PUTRGB4DB(dst_2,py_2,2,4+8);
|
|
|
|
LOADCHROMA(3);
|
|
PUTRGB4DB(dst_2,py_2,3,6+8);
|
|
PUTRGB4DB(dst_1,py_1,3,6);
|
|
CLOSEYUV2RGBFUNC(8)
|
|
|
|
YUV2RGBFUNC(yuv2rgb_c_1_ordered_dither, uint8_t, 0)
|
|
const uint8_t *d128 = dither_8x8_220[y&7];
|
|
char out_1 = 0, out_2 = 0;
|
|
g= c->table_gU[128] + c->table_gV[128];
|
|
|
|
#define PUTRGB1(out,src,i,o) \
|
|
Y = src[2*i]; \
|
|
out+= out + g[Y+d128[0+o]]; \
|
|
Y = src[2*i+1]; \
|
|
out+= out + g[Y+d128[1+o]];
|
|
|
|
PUTRGB1(out_1,py_1,0,0);
|
|
PUTRGB1(out_2,py_2,0,0+8);
|
|
|
|
PUTRGB1(out_2,py_2,1,2+8);
|
|
PUTRGB1(out_1,py_1,1,2);
|
|
|
|
PUTRGB1(out_1,py_1,2,4);
|
|
PUTRGB1(out_2,py_2,2,4+8);
|
|
|
|
PUTRGB1(out_2,py_2,3,6+8);
|
|
PUTRGB1(out_1,py_1,3,6);
|
|
|
|
dst_1[0]= out_1;
|
|
dst_2[0]= out_2;
|
|
CLOSEYUV2RGBFUNC(1)
|
|
|
|
SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c)
|
|
{
|
|
SwsFunc t = NULL;
|
|
|
|
if (HAVE_MMX) {
|
|
t = ff_yuv2rgb_init_mmx(c);
|
|
} else if (HAVE_VIS) {
|
|
t = ff_yuv2rgb_init_vis(c);
|
|
} else if (CONFIG_MLIB) {
|
|
t = ff_yuv2rgb_init_mlib(c);
|
|
} else if (HAVE_ALTIVEC) {
|
|
t = ff_yuv2rgb_init_altivec(c);
|
|
} else if (ARCH_BFIN) {
|
|
t = ff_yuv2rgb_get_func_ptr_bfin(c);
|
|
}
|
|
|
|
if (t)
|
|
return t;
|
|
|
|
av_log(c, AV_LOG_WARNING, "No accelerated colorspace conversion found from %s to %s.\n", sws_format_name(c->srcFormat), sws_format_name(c->dstFormat));
|
|
|
|
switch (c->dstFormat) {
|
|
case PIX_FMT_BGR48BE:
|
|
case PIX_FMT_BGR48LE: return yuv2rgb_c_bgr48;
|
|
case PIX_FMT_RGB48BE:
|
|
case PIX_FMT_RGB48LE: return yuv2rgb_c_48;
|
|
case PIX_FMT_ARGB:
|
|
case PIX_FMT_ABGR: if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) return yuva2argb_c;
|
|
case PIX_FMT_RGBA:
|
|
case PIX_FMT_BGRA: return (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) ? yuva2rgba_c : yuv2rgb_c_32;
|
|
case PIX_FMT_RGB24: return yuv2rgb_c_24_rgb;
|
|
case PIX_FMT_BGR24: return yuv2rgb_c_24_bgr;
|
|
case PIX_FMT_RGB565:
|
|
case PIX_FMT_BGR565:
|
|
case PIX_FMT_RGB555:
|
|
case PIX_FMT_BGR555: return yuv2rgb_c_16;
|
|
case PIX_FMT_RGB444:
|
|
case PIX_FMT_BGR444: return yuv2rgb_c_12_ordered_dither;
|
|
case PIX_FMT_RGB8:
|
|
case PIX_FMT_BGR8: return yuv2rgb_c_8_ordered_dither;
|
|
case PIX_FMT_RGB4:
|
|
case PIX_FMT_BGR4: return yuv2rgb_c_4_ordered_dither;
|
|
case PIX_FMT_RGB4_BYTE:
|
|
case PIX_FMT_BGR4_BYTE: return yuv2rgb_c_4b_ordered_dither;
|
|
case PIX_FMT_MONOBLACK: return yuv2rgb_c_1_ordered_dither;
|
|
default:
|
|
assert(0);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void fill_table(uint8_t* table[256], const int elemsize, const int inc, void *y_tab)
|
|
{
|
|
int i;
|
|
int64_t cb = 0;
|
|
uint8_t *y_table = y_tab;
|
|
|
|
y_table -= elemsize * (inc >> 9);
|
|
|
|
for (i = 0; i < 256; i++) {
|
|
table[i] = y_table + elemsize * (cb >> 16);
|
|
cb += inc;
|
|
}
|
|
}
|
|
|
|
static void fill_gv_table(int table[256], const int elemsize, const int inc)
|
|
{
|
|
int i;
|
|
int64_t cb = 0;
|
|
int off = -(inc >> 9);
|
|
|
|
for (i = 0; i < 256; i++) {
|
|
table[i] = elemsize * (off + (cb >> 16));
|
|
cb += inc;
|
|
}
|
|
}
|
|
|
|
static uint16_t roundToInt16(int64_t f)
|
|
{
|
|
int r= (f + (1<<15))>>16;
|
|
if (r<-0x7FFF) return 0x8000;
|
|
else if (r> 0x7FFF) return 0x7FFF;
|
|
else return r;
|
|
}
|
|
|
|
av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], int fullRange,
|
|
int brightness, int contrast, int saturation)
|
|
{
|
|
const int isRgb = c->dstFormat==PIX_FMT_RGB32
|
|
|| c->dstFormat==PIX_FMT_RGB32_1
|
|
|| c->dstFormat==PIX_FMT_BGR24
|
|
|| c->dstFormat==PIX_FMT_RGB565BE
|
|
|| c->dstFormat==PIX_FMT_RGB565LE
|
|
|| c->dstFormat==PIX_FMT_RGB555BE
|
|
|| c->dstFormat==PIX_FMT_RGB555LE
|
|
|| c->dstFormat==PIX_FMT_RGB444BE
|
|
|| c->dstFormat==PIX_FMT_RGB444LE
|
|
|| c->dstFormat==PIX_FMT_RGB8
|
|
|| c->dstFormat==PIX_FMT_RGB4
|
|
|| c->dstFormat==PIX_FMT_RGB4_BYTE
|
|
|| c->dstFormat==PIX_FMT_MONOBLACK;
|
|
const int isNotNe = c->dstFormat==PIX_FMT_NE(RGB565LE,RGB565BE)
|
|
|| c->dstFormat==PIX_FMT_NE(RGB555LE,RGB555BE)
|
|
|| c->dstFormat==PIX_FMT_NE(RGB444LE,RGB444BE)
|
|
|| c->dstFormat==PIX_FMT_NE(BGR565LE,BGR565BE)
|
|
|| c->dstFormat==PIX_FMT_NE(BGR555LE,BGR555BE)
|
|
|| c->dstFormat==PIX_FMT_NE(BGR444LE,BGR444BE);
|
|
const int bpp = c->dstFormatBpp;
|
|
uint8_t *y_table;
|
|
uint16_t *y_table16;
|
|
uint32_t *y_table32;
|
|
int i, base, rbase, gbase, bbase, abase, needAlpha;
|
|
const int yoffs = fullRange ? 384 : 326;
|
|
|
|
int64_t crv = inv_table[0];
|
|
int64_t cbu = inv_table[1];
|
|
int64_t cgu = -inv_table[2];
|
|
int64_t cgv = -inv_table[3];
|
|
int64_t cy = 1<<16;
|
|
int64_t oy = 0;
|
|
|
|
int64_t yb = 0;
|
|
|
|
if (!fullRange) {
|
|
cy = (cy*255) / 219;
|
|
oy = 16<<16;
|
|
} else {
|
|
crv = (crv*224) / 255;
|
|
cbu = (cbu*224) / 255;
|
|
cgu = (cgu*224) / 255;
|
|
cgv = (cgv*224) / 255;
|
|
}
|
|
|
|
cy = (cy *contrast ) >> 16;
|
|
crv = (crv*contrast * saturation) >> 32;
|
|
cbu = (cbu*contrast * saturation) >> 32;
|
|
cgu = (cgu*contrast * saturation) >> 32;
|
|
cgv = (cgv*contrast * saturation) >> 32;
|
|
oy -= 256*brightness;
|
|
|
|
c->uOffset= 0x0400040004000400LL;
|
|
c->vOffset= 0x0400040004000400LL;
|
|
c->yCoeff= roundToInt16(cy *8192) * 0x0001000100010001ULL;
|
|
c->vrCoeff= roundToInt16(crv*8192) * 0x0001000100010001ULL;
|
|
c->ubCoeff= roundToInt16(cbu*8192) * 0x0001000100010001ULL;
|
|
c->vgCoeff= roundToInt16(cgv*8192) * 0x0001000100010001ULL;
|
|
c->ugCoeff= roundToInt16(cgu*8192) * 0x0001000100010001ULL;
|
|
c->yOffset= roundToInt16(oy * 8) * 0x0001000100010001ULL;
|
|
|
|
c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy <<13);
|
|
c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy << 9);
|
|
c->yuv2rgb_v2r_coeff= (int16_t)roundToInt16(crv<<13);
|
|
c->yuv2rgb_v2g_coeff= (int16_t)roundToInt16(cgv<<13);
|
|
c->yuv2rgb_u2g_coeff= (int16_t)roundToInt16(cgu<<13);
|
|
c->yuv2rgb_u2b_coeff= (int16_t)roundToInt16(cbu<<13);
|
|
|
|
//scale coefficients by cy
|
|
crv = ((crv << 16) + 0x8000) / cy;
|
|
cbu = ((cbu << 16) + 0x8000) / cy;
|
|
cgu = ((cgu << 16) + 0x8000) / cy;
|
|
cgv = ((cgv << 16) + 0x8000) / cy;
|
|
|
|
av_free(c->yuvTable);
|
|
|
|
switch (bpp) {
|
|
case 1:
|
|
c->yuvTable = av_malloc(1024);
|
|
y_table = c->yuvTable;
|
|
yb = -(384<<16) - oy;
|
|
for (i = 0; i < 1024-110; i++) {
|
|
y_table[i+110] = av_clip_uint8((yb + 0x8000) >> 16) >> 7;
|
|
yb += cy;
|
|
}
|
|
fill_table(c->table_gU, 1, cgu, y_table + yoffs);
|
|
fill_gv_table(c->table_gV, 1, cgv);
|
|
break;
|
|
case 4:
|
|
case 4|128:
|
|
rbase = isRgb ? 3 : 0;
|
|
gbase = 1;
|
|
bbase = isRgb ? 0 : 3;
|
|
c->yuvTable = av_malloc(1024*3);
|
|
y_table = c->yuvTable;
|
|
yb = -(384<<16) - oy;
|
|
for (i = 0; i < 1024-110; i++) {
|
|
int yval = av_clip_uint8((yb + 0x8000) >> 16);
|
|
y_table[i+110 ] = (yval >> 7) << rbase;
|
|
y_table[i+ 37+1024] = ((yval + 43) / 85) << gbase;
|
|
y_table[i+110+2048] = (yval >> 7) << bbase;
|
|
yb += cy;
|
|
}
|
|
fill_table(c->table_rV, 1, crv, y_table + yoffs);
|
|
fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
|
|
fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
|
|
fill_gv_table(c->table_gV, 1, cgv);
|
|
break;
|
|
case 8:
|
|
rbase = isRgb ? 5 : 0;
|
|
gbase = isRgb ? 2 : 3;
|
|
bbase = isRgb ? 0 : 6;
|
|
c->yuvTable = av_malloc(1024*3);
|
|
y_table = c->yuvTable;
|
|
yb = -(384<<16) - oy;
|
|
for (i = 0; i < 1024-38; i++) {
|
|
int yval = av_clip_uint8((yb + 0x8000) >> 16);
|
|
y_table[i+16 ] = ((yval + 18) / 36) << rbase;
|
|
y_table[i+16+1024] = ((yval + 18) / 36) << gbase;
|
|
y_table[i+37+2048] = ((yval + 43) / 85) << bbase;
|
|
yb += cy;
|
|
}
|
|
fill_table(c->table_rV, 1, crv, y_table + yoffs);
|
|
fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
|
|
fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
|
|
fill_gv_table(c->table_gV, 1, cgv);
|
|
break;
|
|
case 12:
|
|
rbase = isRgb ? 8 : 0;
|
|
gbase = 4;
|
|
bbase = isRgb ? 0 : 8;
|
|
c->yuvTable = av_malloc(1024*3*2);
|
|
y_table16 = c->yuvTable;
|
|
yb = -(384<<16) - oy;
|
|
for (i = 0; i < 1024; i++) {
|
|
uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
|
|
y_table16[i ] = (yval >> 4) << rbase;
|
|
y_table16[i+1024] = (yval >> 4) << gbase;
|
|
y_table16[i+2048] = (yval >> 4) << bbase;
|
|
yb += cy;
|
|
}
|
|
if (isNotNe)
|
|
for (i = 0; i < 1024*3; i++)
|
|
y_table16[i] = av_bswap16(y_table16[i]);
|
|
fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
|
|
fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
|
|
fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
|
|
fill_gv_table(c->table_gV, 2, cgv);
|
|
break;
|
|
case 15:
|
|
case 16:
|
|
rbase = isRgb ? bpp - 5 : 0;
|
|
gbase = 5;
|
|
bbase = isRgb ? 0 : (bpp - 5);
|
|
c->yuvTable = av_malloc(1024*3*2);
|
|
y_table16 = c->yuvTable;
|
|
yb = -(384<<16) - oy;
|
|
for (i = 0; i < 1024; i++) {
|
|
uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
|
|
y_table16[i ] = (yval >> 3) << rbase;
|
|
y_table16[i+1024] = (yval >> (18 - bpp)) << gbase;
|
|
y_table16[i+2048] = (yval >> 3) << bbase;
|
|
yb += cy;
|
|
}
|
|
if(isNotNe)
|
|
for (i = 0; i < 1024*3; i++)
|
|
y_table16[i] = av_bswap16(y_table16[i]);
|
|
fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
|
|
fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
|
|
fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
|
|
fill_gv_table(c->table_gV, 2, cgv);
|
|
break;
|
|
case 24:
|
|
case 48:
|
|
c->yuvTable = av_malloc(1024);
|
|
y_table = c->yuvTable;
|
|
yb = -(384<<16) - oy;
|
|
for (i = 0; i < 1024; i++) {
|
|
y_table[i] = av_clip_uint8((yb + 0x8000) >> 16);
|
|
yb += cy;
|
|
}
|
|
fill_table(c->table_rV, 1, crv, y_table + yoffs);
|
|
fill_table(c->table_gU, 1, cgu, y_table + yoffs);
|
|
fill_table(c->table_bU, 1, cbu, y_table + yoffs);
|
|
fill_gv_table(c->table_gV, 1, cgv);
|
|
break;
|
|
case 32:
|
|
base = (c->dstFormat == PIX_FMT_RGB32_1 || c->dstFormat == PIX_FMT_BGR32_1) ? 8 : 0;
|
|
rbase = base + (isRgb ? 16 : 0);
|
|
gbase = base + 8;
|
|
bbase = base + (isRgb ? 0 : 16);
|
|
needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat);
|
|
if (!needAlpha)
|
|
abase = (base + 24) & 31;
|
|
c->yuvTable = av_malloc(1024*3*4);
|
|
y_table32 = c->yuvTable;
|
|
yb = -(384<<16) - oy;
|
|
for (i = 0; i < 1024; i++) {
|
|
uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
|
|
y_table32[i ] = (yval << rbase) + (needAlpha ? 0 : (255 << abase));
|
|
y_table32[i+1024] = yval << gbase;
|
|
y_table32[i+2048] = yval << bbase;
|
|
yb += cy;
|
|
}
|
|
fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
|
|
fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + 1024);
|
|
fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2048);
|
|
fill_gv_table(c->table_gV, 4, cgv);
|
|
break;
|
|
default:
|
|
c->yuvTable = NULL;
|
|
av_log(c, AV_LOG_ERROR, "%ibpp not supported by yuv2rgb\n", bpp);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|