mirror of https://git.ffmpeg.org/ffmpeg.git
781 lines
21 KiB
C
781 lines
21 KiB
C
/*
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* yuv2rgb.c, Software YUV to RGB converter
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*
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* Copyright (C) 1999, Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
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*
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* Functions broken out from display_x11.c and several new modes
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* added by Håkan Hjort <d95hjort@dtek.chalmers.se>
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*
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* 15 & 16 bpp support by Franck Sicard <Franck.Sicard@solsoft.fr>
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*
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* MMX/MMX2 template stuff (needed for fast movntq support),
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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 mpeg2dec, a free MPEG-2 video decoder
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*
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* mpeg2dec is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* mpeg2dec 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with mpeg2dec; 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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#define DITHER1XBPP // only for MMX
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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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#if HAVE_MMX
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/* hope these constant values are cache line aligned */
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DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw) = 0x00ff00ff00ff00ffULL;
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DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL;
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DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL;
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//MMX versions
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#undef RENAME
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#undef HAVE_MMX2
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#undef HAVE_3DNOW
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#define HAVE_MMX2 0
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#define HAVE_3DNOW 0
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#define RENAME(a) a ## _MMX
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#include "yuv2rgb_template.c"
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//MMX2 versions
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#undef RENAME
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#undef HAVE_MMX2
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#define HAVE_MMX2 1
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#define RENAME(a) a ## _MMX2
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#include "yuv2rgb_template.c"
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#endif /* HAVE_MMX */
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const int32_t Inverse_Table_6_9[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 RGB(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 DST1(i) \
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Y = py_1[2*i]; \
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dst_1[2*i] = r[Y] + g[Y] + b[Y]; \
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Y = py_1[2*i+1]; \
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dst_1[2*i+1] = r[Y] + g[Y] + b[Y];
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#define DST2(i) \
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Y = py_2[2*i]; \
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dst_2[2*i] = r[Y] + g[Y] + b[Y]; \
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Y = py_2[2*i+1]; \
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dst_2[2*i+1] = r[Y] + g[Y] + b[Y];
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#define DST1RGB(i) \
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Y = py_1[2*i]; \
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dst_1[6*i] = r[Y]; dst_1[6*i+1] = g[Y]; dst_1[6*i+2] = b[Y]; \
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Y = py_1[2*i+1]; \
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dst_1[6*i+3] = r[Y]; dst_1[6*i+4] = g[Y]; dst_1[6*i+5] = b[Y];
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#define DST2RGB(i) \
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Y = py_2[2*i]; \
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dst_2[6*i] = r[Y]; dst_2[6*i+1] = g[Y]; dst_2[6*i+2] = b[Y]; \
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Y = py_2[2*i+1]; \
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dst_2[6*i+3] = r[Y]; dst_2[6*i+4] = g[Y]; dst_2[6*i+5] = b[Y];
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#define DST1BGR(i) \
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Y = py_1[2*i]; \
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dst_1[6*i] = b[Y]; dst_1[6*i+1] = g[Y]; dst_1[6*i+2] = r[Y]; \
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Y = py_1[2*i+1]; \
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dst_1[6*i+3] = b[Y]; dst_1[6*i+4] = g[Y]; dst_1[6*i+5] = r[Y];
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#define DST2BGR(i) \
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Y = py_2[2*i]; \
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dst_2[6*i] = b[Y]; dst_2[6*i+1] = g[Y]; dst_2[6*i+2] = r[Y]; \
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Y = py_2[2*i+1]; \
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dst_2[6*i+3] = b[Y]; dst_2[6*i+4] = g[Y]; dst_2[6*i+5] = r[Y];
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#define PROLOG(func_name, dst_type) \
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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 (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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unsigned int h_size= c->dstW>>3;\
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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 EPILOG1(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 EPILOG2()\
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}\
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}\
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return srcSliceH;\
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}
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#define EPILOG(dst_delta)\
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EPILOG1(dst_delta)\
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EPILOG2()
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PROLOG(yuv2rgb_c_32, uint32_t)
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RGB(0);
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DST1(0);
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DST2(0);
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RGB(1);
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DST2(1);
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DST1(1);
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RGB(2);
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DST1(2);
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DST2(2);
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RGB(3);
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DST2(3);
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DST1(3);
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EPILOG1(8)
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RGB(0);
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DST1(0);
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DST2(0);
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RGB(1);
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DST2(1);
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DST1(1);
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EPILOG2()
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PROLOG(yuv2rgb_c_24_rgb, uint8_t)
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RGB(0);
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DST1RGB(0);
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DST2RGB(0);
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RGB(1);
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DST2RGB(1);
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DST1RGB(1);
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RGB(2);
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DST1RGB(2);
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DST2RGB(2);
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RGB(3);
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DST2RGB(3);
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DST1RGB(3);
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EPILOG1(24)
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RGB(0);
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DST1RGB(0);
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DST2RGB(0);
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RGB(1);
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DST2RGB(1);
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DST1RGB(1);
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EPILOG2()
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// only trivial mods from yuv2rgb_c_24_rgb
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PROLOG(yuv2rgb_c_24_bgr, uint8_t)
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RGB(0);
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DST1BGR(0);
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DST2BGR(0);
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RGB(1);
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DST2BGR(1);
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DST1BGR(1);
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RGB(2);
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DST1BGR(2);
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DST2BGR(2);
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RGB(3);
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DST2BGR(3);
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DST1BGR(3);
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EPILOG1(24)
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RGB(0);
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DST1BGR(0);
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DST2BGR(0);
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RGB(1);
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DST2BGR(1);
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DST1BGR(1);
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EPILOG2()
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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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PROLOG(yuv2rgb_c_16, uint16_t)
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RGB(0);
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DST1(0);
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DST2(0);
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RGB(1);
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DST2(1);
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DST1(1);
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RGB(2);
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DST1(2);
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DST2(2);
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RGB(3);
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DST2(3);
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DST1(3);
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EPILOG(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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PROLOG(yuv2rgb_c_8, uint8_t)
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RGB(0);
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DST1(0);
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DST2(0);
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RGB(1);
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DST2(1);
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DST1(1);
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RGB(2);
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DST1(2);
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DST2(2);
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RGB(3);
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DST2(3);
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DST1(3);
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EPILOG(8)
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// r, g, b, dst_1, dst_2
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PROLOG(yuv2rgb_c_8_ordered_dither, uint8_t)
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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 DST1bpp8(i,o) \
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Y = py_1[2*i]; \
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dst_1[2*i] = r[Y+d32[0+o]] + g[Y+d32[0+o]] + b[Y+d64[0+o]]; \
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Y = py_1[2*i+1]; \
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dst_1[2*i+1] = r[Y+d32[1+o]] + g[Y+d32[1+o]] + b[Y+d64[1+o]];
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#define DST2bpp8(i,o) \
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Y = py_2[2*i]; \
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dst_2[2*i] = r[Y+d32[8+o]] + g[Y+d32[8+o]] + b[Y+d64[8+o]]; \
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Y = py_2[2*i+1]; \
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dst_2[2*i+1] = r[Y+d32[9+o]] + g[Y+d32[9+o]] + b[Y+d64[9+o]];
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RGB(0);
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DST1bpp8(0,0);
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DST2bpp8(0,0);
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RGB(1);
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DST2bpp8(1,2);
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DST1bpp8(1,2);
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RGB(2);
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DST1bpp8(2,4);
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DST2bpp8(2,4);
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RGB(3);
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DST2bpp8(3,6);
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DST1bpp8(3,6);
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EPILOG(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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PROLOG(yuv2rgb_c_4, uint8_t)
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int acc;
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#define DST1_4(i) \
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Y = py_1[2*i]; \
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acc = r[Y] + g[Y] + b[Y]; \
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Y = py_1[2*i+1]; \
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acc |= (r[Y] + g[Y] + b[Y])<<4; \
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dst_1[i] = acc;
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#define DST2_4(i) \
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Y = py_2[2*i]; \
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acc = r[Y] + g[Y] + b[Y]; \
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Y = py_2[2*i+1]; \
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acc |= (r[Y] + g[Y] + b[Y])<<4; \
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dst_2[i] = acc;
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RGB(0);
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DST1_4(0);
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DST2_4(0);
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RGB(1);
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DST2_4(1);
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DST1_4(1);
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RGB(2);
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DST1_4(2);
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DST2_4(2);
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RGB(3);
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DST2_4(3);
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DST1_4(3);
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EPILOG(4)
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PROLOG(yuv2rgb_c_4_ordered_dither, uint8_t)
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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 DST1bpp4(i,o) \
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Y = py_1[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 = py_1[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_1[i]= acc;
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#define DST2bpp4(i,o) \
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Y = py_2[2*i]; \
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acc = r[Y+d128[8+o]] + g[Y+d64[8+o]] + b[Y+d128[8+o]]; \
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Y = py_2[2*i+1]; \
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acc |= (r[Y+d128[9+o]] + g[Y+d64[9+o]] + b[Y+d128[9+o]])<<4; \
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dst_2[i]= acc;
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RGB(0);
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DST1bpp4(0,0);
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DST2bpp4(0,0);
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RGB(1);
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DST2bpp4(1,2);
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DST1bpp4(1,2);
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RGB(2);
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DST1bpp4(2,4);
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DST2bpp4(2,4);
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RGB(3);
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DST2bpp4(3,6);
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DST1bpp4(3,6);
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EPILOG(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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PROLOG(yuv2rgb_c_4b, uint8_t)
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RGB(0);
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DST1(0);
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DST2(0);
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RGB(1);
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DST2(1);
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DST1(1);
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RGB(2);
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DST1(2);
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DST2(2);
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RGB(3);
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DST2(3);
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DST1(3);
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EPILOG(8)
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PROLOG(yuv2rgb_c_4b_ordered_dither, uint8_t)
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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 DST1bpp4b(i,o) \
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Y = py_1[2*i]; \
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dst_1[2*i] = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
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Y = py_1[2*i+1]; \
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dst_1[2*i+1] = r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]];
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#define DST2bpp4b(i,o) \
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Y = py_2[2*i]; \
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dst_2[2*i] = r[Y+d128[8+o]] + g[Y+d64[8+o]] + b[Y+d128[8+o]]; \
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Y = py_2[2*i+1]; \
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dst_2[2*i+1] = r[Y+d128[9+o]] + g[Y+d64[9+o]] + b[Y+d128[9+o]];
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RGB(0);
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DST1bpp4b(0,0);
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DST2bpp4b(0,0);
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RGB(1);
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DST2bpp4b(1,2);
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DST1bpp4b(1,2);
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RGB(2);
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DST1bpp4b(2,4);
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DST2bpp4b(2,4);
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RGB(3);
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DST2bpp4b(3,6);
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DST1bpp4b(3,6);
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EPILOG(8)
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PROLOG(yuv2rgb_c_1_ordered_dither, uint8_t)
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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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#define DST1bpp1(i,o) \
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Y = py_1[2*i]; \
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out_1+= out_1 + g[Y+d128[0+o]]; \
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Y = py_1[2*i+1]; \
|
|
out_1+= out_1 + g[Y+d128[1+o]];
|
|
|
|
#define DST2bpp1(i,o) \
|
|
Y = py_2[2*i]; \
|
|
out_2+= out_2 + g[Y+d128[8+o]]; \
|
|
Y = py_2[2*i+1]; \
|
|
out_2+= out_2 + g[Y+d128[9+o]];
|
|
|
|
DST1bpp1(0,0);
|
|
DST2bpp1(0,0);
|
|
|
|
DST2bpp1(1,2);
|
|
DST1bpp1(1,2);
|
|
|
|
DST1bpp1(2,4);
|
|
DST2bpp1(2,4);
|
|
|
|
DST2bpp1(3,6);
|
|
DST1bpp1(3,6);
|
|
|
|
dst_1[0]= out_1;
|
|
dst_2[0]= out_2;
|
|
EPILOG(1)
|
|
|
|
SwsFunc yuv2rgb_get_func_ptr (SwsContext *c)
|
|
{
|
|
#if HAVE_MMX2 || HAVE_MMX
|
|
if (c->flags & SWS_CPU_CAPS_MMX2){
|
|
switch(c->dstFormat){
|
|
case PIX_FMT_RGB32: return yuv420_rgb32_MMX2;
|
|
case PIX_FMT_BGR24: return yuv420_rgb24_MMX2;
|
|
case PIX_FMT_RGB565: return yuv420_rgb16_MMX2;
|
|
case PIX_FMT_RGB555: return yuv420_rgb15_MMX2;
|
|
}
|
|
}
|
|
if (c->flags & SWS_CPU_CAPS_MMX){
|
|
switch(c->dstFormat){
|
|
case PIX_FMT_RGB32: return yuv420_rgb32_MMX;
|
|
case PIX_FMT_BGR24: return yuv420_rgb24_MMX;
|
|
case PIX_FMT_RGB565: return yuv420_rgb16_MMX;
|
|
case PIX_FMT_RGB555: return yuv420_rgb15_MMX;
|
|
}
|
|
}
|
|
#endif
|
|
#if HAVE_VIS
|
|
{
|
|
SwsFunc t= yuv2rgb_init_vis(c);
|
|
if (t) return t;
|
|
}
|
|
#endif
|
|
#if CONFIG_MLIB
|
|
{
|
|
SwsFunc t= yuv2rgb_init_mlib(c);
|
|
if (t) return t;
|
|
}
|
|
#endif
|
|
#if HAVE_ALTIVEC
|
|
if (c->flags & SWS_CPU_CAPS_ALTIVEC)
|
|
{
|
|
SwsFunc t = yuv2rgb_init_altivec(c);
|
|
if (t) return t;
|
|
}
|
|
#endif
|
|
|
|
#if ARCH_BFIN
|
|
if (c->flags & SWS_CPU_CAPS_BFIN)
|
|
{
|
|
SwsFunc t = ff_bfin_yuv2rgb_get_func_ptr (c);
|
|
if (t) return t;
|
|
}
|
|
#endif
|
|
|
|
av_log(c, AV_LOG_WARNING, "No accelerated colorspace conversion found.\n");
|
|
|
|
switch(c->dstFormat){
|
|
case PIX_FMT_BGR32_1:
|
|
case PIX_FMT_RGB32_1:
|
|
case PIX_FMT_BGR32:
|
|
case PIX_FMT_RGB32: return 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_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 int div_round (int dividend, int divisor)
|
|
{
|
|
if (dividend > 0)
|
|
return (dividend + (divisor>>1)) / divisor;
|
|
else
|
|
return -((-dividend + (divisor>>1)) / divisor);
|
|
}
|
|
|
|
int 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_RGB565
|
|
|| c->dstFormat==PIX_FMT_RGB555
|
|
|| c->dstFormat==PIX_FMT_RGB8
|
|
|| c->dstFormat==PIX_FMT_RGB4
|
|
|| c->dstFormat==PIX_FMT_RGB4_BYTE
|
|
|| c->dstFormat==PIX_FMT_MONOBLACK;
|
|
const int bpp = fmt_depth(c->dstFormat);
|
|
int i, base;
|
|
uint8_t table_Y[1024];
|
|
uint32_t *table_32 = 0;
|
|
uint16_t *table_16 = 0;
|
|
uint8_t *table_8 = 0;
|
|
uint8_t *table_332 = 0;
|
|
uint8_t *table_121 = 0;
|
|
uint8_t *table_1 = 0;
|
|
int entry_size = 0;
|
|
void *table_r = 0, *table_g = 0, *table_b = 0;
|
|
void *table_start;
|
|
|
|
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;
|
|
|
|
//printf("%lld %lld %lld %lld %lld\n", cy, crv, cbu, cgu, cgv);
|
|
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;
|
|
//printf("%lld %lld %lld %lld %lld\n", cy, crv, cbu, cgu, cgv);
|
|
oy -= 256*brightness;
|
|
|
|
for (i = 0; i < 1024; i++) {
|
|
int j;
|
|
|
|
j= (cy*(((i - 384)<<16) - oy) + (1<<31))>>32;
|
|
j = (j < 0) ? 0 : ((j > 255) ? 255 : j);
|
|
table_Y[i] = j;
|
|
}
|
|
|
|
switch (bpp) {
|
|
case 32:
|
|
table_start= table_32 = av_malloc ((197 + 2*682 + 256 + 132) * sizeof (uint32_t));
|
|
base= (c->dstFormat == PIX_FMT_RGB32_1 || c->dstFormat == PIX_FMT_BGR32_1) ? 8 : 0;
|
|
|
|
entry_size = sizeof (uint32_t);
|
|
table_r = table_32 + 197;
|
|
table_b = table_32 + 197 + 685;
|
|
table_g = table_32 + 197 + 2*682;
|
|
|
|
for (i = -197; i < 256+197; i++)
|
|
((uint32_t *)table_r)[i] = table_Y[i+384] << ((isRgb ? 16 : 0) + base);
|
|
for (i = -132; i < 256+132; i++)
|
|
((uint32_t *)table_g)[i] = table_Y[i+384] << (8 + base);
|
|
for (i = -232; i < 256+232; i++)
|
|
((uint32_t *)table_b)[i] = table_Y[i+384] << ((isRgb ? 0 : 16) + base);
|
|
break;
|
|
|
|
case 24:
|
|
table_start= table_8 = av_malloc ((256 + 2*232) * sizeof (uint8_t));
|
|
|
|
entry_size = sizeof (uint8_t);
|
|
table_r = table_g = table_b = table_8 + 232;
|
|
|
|
for (i = -232; i < 256+232; i++)
|
|
((uint8_t * )table_b)[i] = table_Y[i+384];
|
|
break;
|
|
|
|
case 15:
|
|
case 16:
|
|
table_start= table_16 = av_malloc ((197 + 2*682 + 256 + 132) * sizeof (uint16_t));
|
|
|
|
entry_size = sizeof (uint16_t);
|
|
table_r = table_16 + 197;
|
|
table_b = table_16 + 197 + 685;
|
|
table_g = table_16 + 197 + 2*682;
|
|
|
|
for (i = -197; i < 256+197; i++) {
|
|
int j = table_Y[i+384] >> 3;
|
|
|
|
if (isRgb)
|
|
j <<= ((bpp==16) ? 11 : 10);
|
|
|
|
((uint16_t *)table_r)[i] = j;
|
|
}
|
|
for (i = -132; i < 256+132; i++) {
|
|
int j = table_Y[i+384] >> ((bpp==16) ? 2 : 3);
|
|
|
|
((uint16_t *)table_g)[i] = j << 5;
|
|
}
|
|
for (i = -232; i < 256+232; i++) {
|
|
int j = table_Y[i+384] >> 3;
|
|
|
|
if (!isRgb)
|
|
j <<= ((bpp==16) ? 11 : 10);
|
|
|
|
((uint16_t *)table_b)[i] = j;
|
|
}
|
|
break;
|
|
|
|
case 8:
|
|
table_start= table_332 = av_malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));
|
|
|
|
entry_size = sizeof (uint8_t);
|
|
table_r = table_332 + 197;
|
|
table_b = table_332 + 197 + 685;
|
|
table_g = table_332 + 197 + 2*682;
|
|
|
|
for (i = -197; i < 256+197; i++) {
|
|
int j = (table_Y[i+384 - 16] + 18)/36;
|
|
|
|
if (isRgb)
|
|
j <<= 5;
|
|
|
|
((uint8_t *)table_r)[i] = j;
|
|
}
|
|
for (i = -132; i < 256+132; i++) {
|
|
int j = (table_Y[i+384 - 16] + 18)/36;
|
|
|
|
if (!isRgb)
|
|
j <<= 1;
|
|
|
|
((uint8_t *)table_g)[i] = j << 2;
|
|
}
|
|
for (i = -232; i < 256+232; i++) {
|
|
int j = (table_Y[i+384 - 37] + 43)/85;
|
|
|
|
if (!isRgb)
|
|
j <<= 6;
|
|
|
|
((uint8_t *)table_b)[i] = j;
|
|
}
|
|
break;
|
|
case 4:
|
|
case 4|128:
|
|
table_start= table_121 = av_malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));
|
|
|
|
entry_size = sizeof (uint8_t);
|
|
table_r = table_121 + 197;
|
|
table_b = table_121 + 197 + 685;
|
|
table_g = table_121 + 197 + 2*682;
|
|
|
|
for (i = -197; i < 256+197; i++) {
|
|
int j = table_Y[i+384 - 110] >> 7;
|
|
|
|
if (isRgb)
|
|
j <<= 3;
|
|
|
|
((uint8_t *)table_r)[i] = j;
|
|
}
|
|
for (i = -132; i < 256+132; i++) {
|
|
int j = (table_Y[i+384 - 37]+ 43)/85;
|
|
|
|
((uint8_t *)table_g)[i] = j << 1;
|
|
}
|
|
for (i = -232; i < 256+232; i++) {
|
|
int j =table_Y[i+384 - 110] >> 7;
|
|
|
|
if (!isRgb)
|
|
j <<= 3;
|
|
|
|
((uint8_t *)table_b)[i] = j;
|
|
}
|
|
break;
|
|
|
|
case 1:
|
|
table_start= table_1 = av_malloc (256*2 * sizeof (uint8_t));
|
|
|
|
entry_size = sizeof (uint8_t);
|
|
table_g = table_1;
|
|
table_r = table_b = NULL;
|
|
|
|
for (i = 0; i < 256+256; i++) {
|
|
int j = table_Y[i + 384 - 110]>>7;
|
|
|
|
((uint8_t *)table_g)[i] = j;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
table_start= NULL;
|
|
av_log(c, AV_LOG_ERROR, "%ibpp not supported by yuv2rgb\n", bpp);
|
|
//free mem?
|
|
return -1;
|
|
}
|
|
|
|
for (i = 0; i < 256; i++) {
|
|
c->table_rV[i] = (uint8_t *)table_r + entry_size * div_round (crv * (i-128), cy);
|
|
c->table_gU[i] = (uint8_t *)table_g + entry_size * div_round (cgu * (i-128), cy);
|
|
c->table_gV[i] = entry_size * div_round (cgv * (i-128), cy);
|
|
c->table_bU[i] = (uint8_t *)table_b + entry_size * div_round (cbu * (i-128), cy);
|
|
}
|
|
|
|
av_free(c->yuvTable);
|
|
c->yuvTable= table_start;
|
|
return 0;
|
|
}
|