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717 lines
21 KiB
717 lines
21 KiB
/* |
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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 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 <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/x86_cpu.h" |
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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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#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,o) \ |
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Y = src[2*i+o]; \ |
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dst[2*i ] = r[Y] + g[Y] + b[Y]; \ |
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Y = src[2*i+1-o]; \ |
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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,o,s) \ |
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Y = ysrc[2*i+o]; \ |
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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-o]; \ |
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dst[2*i+1] = r[Y] + g[Y] + b[Y] + (asrc[2*i+1]<<s); |
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#define YUV2RGBFUNC(func_name, dst_type, alpha) \ |
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static int func_name(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, \ |
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int srcSliceH, uint8_t* dst[], int dstStride[]){\ |
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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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uint8_t *py_1 = src[0] + y*srcStride[0];\ |
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uint8_t *py_2 = py_1 + srcStride[0];\ |
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uint8_t *pu = src[1] + (y>>1)*srcStride[1];\ |
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uint8_t *pv = src[2] + (y>>1)*srcStride[2];\ |
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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_32, uint32_t, 0) |
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LOADCHROMA(0); |
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PUTRGB(dst_1,py_1,0,0); |
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PUTRGB(dst_2,py_2,0,1); |
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LOADCHROMA(1); |
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PUTRGB(dst_2,py_2,1,1); |
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PUTRGB(dst_1,py_1,1,0); |
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LOADCHROMA(1); |
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PUTRGB(dst_2,py_2,1,1); |
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PUTRGB(dst_1,py_1,1,0); |
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LOADCHROMA(2); |
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PUTRGB(dst_1,py_1,2,0); |
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PUTRGB(dst_2,py_2,2,1); |
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LOADCHROMA(3); |
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PUTRGB(dst_2,py_2,3,1); |
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PUTRGB(dst_1,py_1,3,0); |
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ENDYUV2RGBLINE(8) |
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LOADCHROMA(0); |
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PUTRGB(dst_1,py_1,0,0); |
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PUTRGB(dst_2,py_2,0,1); |
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LOADCHROMA(1); |
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PUTRGB(dst_2,py_2,1,1); |
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PUTRGB(dst_1,py_1,1,0); |
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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_1,0,0,24); |
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PUTRGBA(dst_2,py_2,pa_2,0,1,24); |
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LOADCHROMA(1); |
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PUTRGBA(dst_2,py_2,pa_1,1,1,24); |
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PUTRGBA(dst_1,py_1,pa_2,1,0,24); |
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LOADCHROMA(1); |
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PUTRGBA(dst_2,py_2,pa_1,1,1,24); |
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PUTRGBA(dst_1,py_1,pa_2,1,0,24); |
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LOADCHROMA(2); |
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PUTRGBA(dst_1,py_1,pa_1,2,0,24); |
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PUTRGBA(dst_2,py_2,pa_2,2,1,24); |
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LOADCHROMA(3); |
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PUTRGBA(dst_2,py_2,pa_1,3,1,24); |
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PUTRGBA(dst_1,py_1,pa_2,3,0,24); |
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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_1,0,0,24); |
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PUTRGBA(dst_2,py_2,pa_2,0,1,24); |
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LOADCHROMA(1); |
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PUTRGBA(dst_2,py_2,pa_1,1,1,24); |
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PUTRGBA(dst_1,py_1,pa_2,1,0,24); |
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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_1,0,0,0); |
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PUTRGBA(dst_2,py_2,pa_2,0,1,0); |
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LOADCHROMA(1); |
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PUTRGBA(dst_2,py_2,pa_2,1,1,0); |
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PUTRGBA(dst_1,py_1,pa_1,1,0,0); |
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LOADCHROMA(1); |
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PUTRGBA(dst_2,py_2,pa_2,1,1,0); |
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PUTRGBA(dst_1,py_1,pa_1,1,0,0); |
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LOADCHROMA(2); |
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PUTRGBA(dst_1,py_1,pa_1,2,0,0); |
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PUTRGBA(dst_2,py_2,pa_2,2,1,0); |
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LOADCHROMA(3); |
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PUTRGBA(dst_2,py_2,pa_2,3,1,0); |
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PUTRGBA(dst_1,py_1,pa_1,3,0,0); |
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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_1,0,0,0); |
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PUTRGBA(dst_2,py_2,pa_2,0,1,0); |
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LOADCHROMA(1); |
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PUTRGBA(dst_2,py_2,pa_2,1,1,0); |
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PUTRGBA(dst_1,py_1,pa_1,1,0,0); |
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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_1,0,0); |
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PUTRGB(dst_2,py_2,0,1); |
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LOADCHROMA(1); |
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PUTRGB(dst_2,py_2,1,1); |
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PUTRGB(dst_1,py_1,1,0); |
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LOADCHROMA(2); |
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PUTRGB(dst_1,py_1,2,0); |
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PUTRGB(dst_2,py_2,2,1); |
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LOADCHROMA(3); |
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PUTRGB(dst_2,py_2,3,1); |
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PUTRGB(dst_1,py_1,3,0); |
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CLOSEYUV2RGBFUNC(8) |
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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_8, uint8_t, 0) |
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LOADCHROMA(0); |
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PUTRGB(dst_1,py_1,0,0); |
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PUTRGB(dst_2,py_2,0,1); |
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LOADCHROMA(1); |
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PUTRGB(dst_2,py_2,1,1); |
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PUTRGB(dst_1,py_1,1,0); |
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LOADCHROMA(2); |
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PUTRGB(dst_1,py_1,2,0); |
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PUTRGB(dst_2,py_2,2,1); |
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LOADCHROMA(3); |
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PUTRGB(dst_2,py_2,3,1); |
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PUTRGB(dst_1,py_1,3,0); |
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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); |
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PUTRGB8(dst_1,py_1,3,6); |
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CLOSEYUV2RGBFUNC(8) |
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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_4, uint8_t, 0) |
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int acc; |
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#define PUTRGB4(dst,src,i) \ |
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Y = src[2*i]; \ |
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acc = r[Y] + g[Y] + b[Y]; \ |
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Y = src[2*i+1]; \ |
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acc |= (r[Y] + g[Y] + b[Y])<<4; \ |
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dst[i] = acc; |
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LOADCHROMA(0); |
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PUTRGB4(dst_1,py_1,0); |
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PUTRGB4(dst_2,py_2,0); |
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LOADCHROMA(1); |
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PUTRGB4(dst_2,py_2,1); |
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PUTRGB4(dst_1,py_1,1); |
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LOADCHROMA(2); |
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PUTRGB4(dst_1,py_1,2); |
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PUTRGB4(dst_2,py_2,2); |
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LOADCHROMA(3); |
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PUTRGB4(dst_2,py_2,3); |
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PUTRGB4(dst_1,py_1,3); |
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CLOSEYUV2RGBFUNC(4) |
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YUV2RGBFUNC(yuv2rgb_c_4_ordered_dither, uint8_t, 0) |
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const uint8_t *d64 = dither_8x8_73[y&7]; |
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const uint8_t *d128 = dither_8x8_220[y&7]; |
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int acc; |
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#define PUTRGB4D(dst,src,i,o) \ |
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Y = src[2*i]; \ |
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acc = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \ |
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Y = src[2*i+1]; \ |
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acc |= (r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]])<<4; \ |
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dst[i]= acc; |
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LOADCHROMA(0); |
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PUTRGB4D(dst_1,py_1,0,0); |
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PUTRGB4D(dst_2,py_2,0,0+8); |
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LOADCHROMA(1); |
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PUTRGB4D(dst_2,py_2,1,2+8); |
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PUTRGB4D(dst_1,py_1,1,2); |
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LOADCHROMA(2); |
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PUTRGB4D(dst_1,py_1,2,4); |
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PUTRGB4D(dst_2,py_2,2,4+8); |
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LOADCHROMA(3); |
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PUTRGB4D(dst_2,py_2,3,6+8); |
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PUTRGB4D(dst_1,py_1,3,6); |
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CLOSEYUV2RGBFUNC(4) |
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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_4b, uint8_t, 0) |
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LOADCHROMA(0); |
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PUTRGB(dst_1,py_1,0,0); |
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PUTRGB(dst_2,py_2,0,1); |
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LOADCHROMA(1); |
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PUTRGB(dst_2,py_2,1,1); |
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PUTRGB(dst_1,py_1,1,0); |
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LOADCHROMA(2); |
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PUTRGB(dst_1,py_1,2,0); |
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PUTRGB(dst_2,py_2,2,1); |
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LOADCHROMA(3); |
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PUTRGB(dst_2,py_2,3,1); |
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PUTRGB(dst_1,py_1,3,0); |
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CLOSEYUV2RGBFUNC(8) |
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YUV2RGBFUNC(yuv2rgb_c_4b_ordered_dither, uint8_t, 0) |
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const uint8_t *d64 = dither_8x8_73[y&7]; |
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const uint8_t *d128 = dither_8x8_220[y&7]; |
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#define PUTRGB4DB(dst,src,i,o) \ |
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Y = src[2*i]; \ |
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dst[2*i] = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \ |
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Y = src[2*i+1]; \ |
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dst[2*i+1] = r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]]; |
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LOADCHROMA(0); |
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PUTRGB4DB(dst_1,py_1,0,0); |
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PUTRGB4DB(dst_2,py_2,0,0+8); |
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LOADCHROMA(1); |
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PUTRGB4DB(dst_2,py_2,1,2+8); |
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PUTRGB4DB(dst_1,py_1,1,2); |
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LOADCHROMA(2); |
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PUTRGB4DB(dst_1,py_1,2,4); |
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PUTRGB4DB(dst_2,py_2,2,4+8); |
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LOADCHROMA(3); |
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PUTRGB4DB(dst_2,py_2,3,6+8); |
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PUTRGB4DB(dst_1,py_1,3,6); |
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CLOSEYUV2RGBFUNC(8) |
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YUV2RGBFUNC(yuv2rgb_c_1_ordered_dither, uint8_t, 0) |
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const uint8_t *d128 = dither_8x8_220[y&7]; |
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char out_1 = 0, out_2 = 0; |
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g= c->table_gU[128] + c->table_gV[128]; |
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|
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#define PUTRGB1(out,src,i,o) \ |
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Y = src[2*i]; \ |
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out+= out + g[Y+d128[0+o]]; \ |
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Y = src[2*i+1]; \ |
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out+= out + g[Y+d128[1+o]]; |
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|
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PUTRGB1(out_1,py_1,0,0); |
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PUTRGB1(out_2,py_2,0,0+8); |
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|
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PUTRGB1(out_2,py_2,1,2+8); |
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PUTRGB1(out_1,py_1,1,2); |
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|
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PUTRGB1(out_1,py_1,2,4); |
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PUTRGB1(out_2,py_2,2,4+8); |
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|
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PUTRGB1(out_2,py_2,3,6+8); |
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PUTRGB1(out_1,py_1,3,6); |
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|
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dst_1[0]= out_1; |
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dst_2[0]= out_2; |
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CLOSEYUV2RGBFUNC(1) |
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|
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SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c) |
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{ |
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SwsFunc t = NULL; |
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#if (HAVE_MMX2 || HAVE_MMX) && CONFIG_GPL |
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t = ff_yuv2rgb_init_mmx(c); |
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#endif |
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#if HAVE_VIS |
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t = ff_yuv2rgb_init_vis(c); |
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#endif |
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#if CONFIG_MLIB |
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t = ff_yuv2rgb_init_mlib(c); |
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#endif |
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#if HAVE_ALTIVEC && CONFIG_GPL |
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if (c->flags & SWS_CPU_CAPS_ALTIVEC) |
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t = ff_yuv2rgb_init_altivec(c); |
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#endif |
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|
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#if ARCH_BFIN |
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if (c->flags & SWS_CPU_CAPS_BFIN) |
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t = ff_yuv2rgb_get_func_ptr_bfin(c); |
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#endif |
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|
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if (t) |
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return t; |
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|
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av_log(c, AV_LOG_WARNING, "No accelerated colorspace conversion found.\n"); |
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|
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switch (c->dstFormat) { |
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case PIX_FMT_ARGB: |
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case PIX_FMT_ABGR: if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) return yuva2argb_c; |
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case PIX_FMT_RGBA: |
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case PIX_FMT_BGRA: return (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) ? yuva2rgba_c : yuv2rgb_c_32; |
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case PIX_FMT_RGB24: return yuv2rgb_c_24_rgb; |
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case PIX_FMT_BGR24: return yuv2rgb_c_24_bgr; |
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case PIX_FMT_RGB565: |
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case PIX_FMT_BGR565: |
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case PIX_FMT_RGB555: |
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case PIX_FMT_BGR555: return yuv2rgb_c_16; |
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case PIX_FMT_RGB8: |
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case PIX_FMT_BGR8: return yuv2rgb_c_8_ordered_dither; |
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case PIX_FMT_RGB4: |
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case PIX_FMT_BGR4: return yuv2rgb_c_4_ordered_dither; |
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case PIX_FMT_RGB4_BYTE: |
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case PIX_FMT_BGR4_BYTE: return yuv2rgb_c_4b_ordered_dither; |
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case PIX_FMT_MONOBLACK: return yuv2rgb_c_1_ordered_dither; |
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default: |
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assert(0); |
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} |
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return NULL; |
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} |
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|
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static void fill_table(uint8_t* table[256], const int elemsize, const int inc, uint8_t *y_table) |
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{ |
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int i; |
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int64_t cb = 0; |
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|
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y_table -= elemsize * (inc >> 9); |
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|
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for (i = 0; i < 256; i++) { |
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table[i] = y_table + elemsize * (cb >> 16); |
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cb += inc; |
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} |
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} |
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|
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static void fill_gv_table(int table[256], const int elemsize, const int inc) |
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{ |
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int i; |
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int64_t cb = 0; |
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int off = -(inc >> 9); |
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|
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for (i = 0; i < 256; i++) { |
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table[i] = elemsize * (off + (cb >> 16)); |
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cb += inc; |
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} |
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} |
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|
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av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], int fullRange, |
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int brightness, int contrast, int saturation) |
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{ |
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const int isRgb = c->dstFormat==PIX_FMT_RGB32 |
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|| c->dstFormat==PIX_FMT_RGB32_1 |
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|| c->dstFormat==PIX_FMT_BGR24 |
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|| c->dstFormat==PIX_FMT_RGB565 |
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|| c->dstFormat==PIX_FMT_RGB555 |
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|| c->dstFormat==PIX_FMT_RGB8 |
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|| c->dstFormat==PIX_FMT_RGB4 |
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|| c->dstFormat==PIX_FMT_RGB4_BYTE |
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|| c->dstFormat==PIX_FMT_MONOBLACK; |
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const int bpp = fmt_depth(c->dstFormat); |
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uint8_t *y_table; |
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uint16_t *y_table16; |
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uint32_t *y_table32; |
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int i, base, rbase, gbase, bbase, abase, needAlpha; |
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const int yoffs = fullRange ? 384 : 326; |
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|
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int64_t crv = inv_table[0]; |
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int64_t cbu = inv_table[1]; |
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int64_t cgu = -inv_table[2]; |
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int64_t cgv = -inv_table[3]; |
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int64_t cy = 1<<16; |
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int64_t oy = 0; |
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|
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int64_t yb = 0; |
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|
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if (!fullRange) { |
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cy = (cy*255) / 219; |
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oy = 16<<16; |
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} else { |
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crv = (crv*224) / 255; |
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cbu = (cbu*224) / 255; |
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cgu = (cgu*224) / 255; |
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cgv = (cgv*224) / 255; |
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} |
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|
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cy = (cy *contrast ) >> 16; |
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crv = (crv*contrast * saturation) >> 32; |
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cbu = (cbu*contrast * saturation) >> 32; |
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cgu = (cgu*contrast * saturation) >> 32; |
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cgv = (cgv*contrast * saturation) >> 32; |
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oy -= 256*brightness; |
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|
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//scale coefficients by cy |
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crv = ((crv << 16) + 0x8000) / cy; |
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cbu = ((cbu << 16) + 0x8000) / cy; |
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cgu = ((cgu << 16) + 0x8000) / cy; |
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cgv = ((cgv << 16) + 0x8000) / cy; |
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|
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av_free(c->yuvTable); |
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|
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switch (bpp) { |
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case 1: |
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c->yuvTable = av_malloc(1024); |
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y_table = c->yuvTable; |
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yb = -(384<<16) - oy; |
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for (i = 0; i < 1024-110; i++) { |
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y_table[i+110] = av_clip_uint8((yb + 0x8000) >> 16) >> 7; |
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yb += cy; |
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} |
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fill_table(c->table_gU, 1, cgu, y_table + yoffs); |
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fill_gv_table(c->table_gV, 1, cgv); |
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break; |
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case 4: |
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case 4|128: |
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rbase = isRgb ? 3 : 0; |
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gbase = 1; |
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bbase = isRgb ? 0 : 3; |
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c->yuvTable = av_malloc(1024*3); |
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y_table = c->yuvTable; |
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yb = -(384<<16) - oy; |
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for (i = 0; i < 1024-110; i++) { |
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int yval = av_clip_uint8((yb + 0x8000) >> 16); |
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y_table[i+110 ] = (yval >> 7) << rbase; |
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y_table[i+ 37+1024] = ((yval + 43) / 85) << gbase; |
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y_table[i+110+2048] = (yval >> 7) << bbase; |
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yb += cy; |
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} |
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fill_table(c->table_rV, 1, crv, y_table + yoffs); |
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fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024); |
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fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048); |
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fill_gv_table(c->table_gV, 1, cgv); |
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break; |
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case 8: |
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rbase = isRgb ? 5 : 0; |
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gbase = isRgb ? 2 : 3; |
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bbase = isRgb ? 0 : 6; |
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c->yuvTable = av_malloc(1024*3); |
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y_table = c->yuvTable; |
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yb = -(384<<16) - oy; |
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for (i = 0; i < 1024-38; i++) { |
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int yval = av_clip_uint8((yb + 0x8000) >> 16); |
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y_table[i+16 ] = ((yval + 18) / 36) << rbase; |
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y_table[i+16+1024] = ((yval + 18) / 36) << gbase; |
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y_table[i+37+2048] = ((yval + 43) / 85) << bbase; |
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yb += cy; |
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} |
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fill_table(c->table_rV, 1, crv, y_table + yoffs); |
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fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024); |
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fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048); |
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fill_gv_table(c->table_gV, 1, cgv); |
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break; |
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case 15: |
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case 16: |
|
rbase = isRgb ? bpp - 5 : 0; |
|
gbase = 5; |
|
bbase = isRgb ? 0 : (bpp - 5); |
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c->yuvTable = av_malloc(1024*3*2); |
|
y_table16 = c->yuvTable; |
|
yb = -(384<<16) - oy; |
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for (i = 0; i < 1024; i++) { |
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uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16); |
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y_table16[i ] = (yval >> 3) << rbase; |
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y_table16[i+1024] = (yval >> (18 - bpp)) << gbase; |
|
y_table16[i+2048] = (yval >> 3) << bbase; |
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yb += cy; |
|
} |
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fill_table(c->table_rV, 2, crv, y_table16 + yoffs); |
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fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024); |
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fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048); |
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fill_gv_table(c->table_gV, 2, cgv); |
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break; |
|
case 24: |
|
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; |
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} |
|
fill_table(c->table_rV, 1, crv, y_table + yoffs); |
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fill_table(c->table_gU, 1, cgu, y_table + yoffs); |
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fill_table(c->table_bU, 1, cbu, y_table + yoffs); |
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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; |
|
}
|
|
|