851 lines
29 KiB
C
851 lines
29 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 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 "libavutil/cpu.h"
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#include "libavutil/bswap.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/pixdesc.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+YUVRGB_TABLE_HEADROOM]; \
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g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \
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b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM];
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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]; \
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dst[6 * i + 1] = g[Y]; \
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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]; \
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dst[6 * i + 4] = g[Y]; \
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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]; \
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dst[6 * i + 1] = g[Y]; \
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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]; \
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dst[6 * i + 4] = g[Y]; \
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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[], \
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int srcStride[], int srcSliceY, int srcSliceH, \
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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 = \
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(dst_type *)(dst[0] + (y + srcSliceY) * dstStride[0]); \
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dst_type *dst_2 = \
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(dst_type *)(dst[0] + (y + srcSliceY + 1) * dstStride[0]); \
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dst_type av_unused *r, *g, *b; \
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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, 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]] + \
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g[Y + d16[0 + o]] + \
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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]] + \
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g[Y + d16[1 + o]] + \
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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]] + \
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g[Y + d32[0 + o]] + \
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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]] + \
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g[Y + d32[1 + o]] + \
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b[Y + d64[1 + o]];
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LOADCHROMA(0);
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PUTRGB8(dst_1, py_1, 0, 0);
|
|
PUTRGB8(dst_2, py_2, 0, 0 + 8);
|
|
|
|
LOADCHROMA(1);
|
|
PUTRGB8(dst_2, py_2, 1, 2 + 8);
|
|
PUTRGB8(dst_1, py_1, 1, 2);
|
|
|
|
LOADCHROMA(2);
|
|
PUTRGB8(dst_1, py_1, 2, 4);
|
|
PUTRGB8(dst_2, py_2, 2, 4 + 8);
|
|
|
|
LOADCHROMA(3);
|
|
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 + YUVRGB_TABLE_HEADROOM] + c->table_gV[128 + YUVRGB_TABLE_HEADROOM];
|
|
|
|
#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 (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",
|
|
av_get_pix_fmt_name(c->srcFormat), av_get_pix_fmt_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 && isALPHA(c->srcFormat))
|
|
return yuva2argb_c;
|
|
case PIX_FMT_RGBA:
|
|
case PIX_FMT_BGRA:
|
|
return (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat)) ? 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;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void fill_table(uint8_t* table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize,
|
|
const int inc, void *y_tab)
|
|
{
|
|
int i;
|
|
uint8_t *y_table = y_tab;
|
|
|
|
y_table -= elemsize * (inc >> 9);
|
|
|
|
for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) {
|
|
int64_t cb = av_clip(i-YUVRGB_TABLE_HEADROOM, 0, 255)*inc;
|
|
table[i] = y_table + elemsize * (cb >> 16);
|
|
}
|
|
}
|
|
|
|
static void fill_gv_table(int table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize, const int inc)
|
|
{
|
|
int i;
|
|
int off = -(inc >> 9);
|
|
|
|
for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) {
|
|
int64_t cb = av_clip(i-YUVRGB_TABLE_HEADROOM, 0, 255)*inc;
|
|
table[i] = elemsize * (off + (cb >> 16));
|
|
}
|
|
}
|
|
|
|
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, av_uninit(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++) {
|
|
unsigned yval = av_clip_uint8((yb + 0x8000) >> 16);
|
|
y_table32[i] = (yval << rbase) +
|
|
(needAlpha ? 0 : (255u << 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;
|
|
}
|