123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810 |
- /*
- * software YUV to RGB converter
- *
- * Copyright (C) 2009 Konstantin Shishkov
- *
- * 1,4,8bpp support and context / deglobalize stuff
- * by Michael Niedermayer (michaelni@gmx.at)
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include <inttypes.h>
- #include <assert.h>
- #include "config.h"
- #include "rgb2rgb.h"
- #include "swscale.h"
- #include "swscale_internal.h"
- #include "libavutil/cpu.h"
- #include "libavutil/bswap.h"
- #include "libavutil/pixdesc.h"
- extern const uint8_t dither_4x4_16[4][8];
- extern const uint8_t dither_8x8_32[8][8];
- extern const uint8_t dither_8x8_73[8][8];
- extern const uint8_t dither_8x8_220[8][8];
- const int32_t ff_yuv2rgb_coeffs[8][4] = {
- {117504, 138453, 13954, 34903}, /* no sequence_display_extension */
- {117504, 138453, 13954, 34903}, /* ITU-R Rec. 709 (1990) */
- {104597, 132201, 25675, 53279}, /* unspecified */
- {104597, 132201, 25675, 53279}, /* reserved */
- {104448, 132798, 24759, 53109}, /* FCC */
- {104597, 132201, 25675, 53279}, /* ITU-R Rec. 624-4 System B, G */
- {104597, 132201, 25675, 53279}, /* SMPTE 170M */
- {117579, 136230, 16907, 35559} /* SMPTE 240M (1987) */
- };
- const int *sws_getCoefficients(int colorspace)
- {
- if (colorspace > 7 || colorspace < 0)
- colorspace = SWS_CS_DEFAULT;
- return ff_yuv2rgb_coeffs[colorspace];
- }
- #define LOADCHROMA(i) \
- U = pu[i]; \
- V = pv[i]; \
- r = (void *)c->table_rV[V]; \
- g = (void *)(c->table_gU[U] + c->table_gV[V]); \
- b = (void *)c->table_bU[U];
- #define PUTRGB(dst,src,i) \
- Y = src[2*i]; \
- dst[2*i ] = r[Y] + g[Y] + b[Y]; \
- Y = src[2*i+1]; \
- dst[2*i+1] = r[Y] + g[Y] + b[Y];
- #define PUTRGB24(dst,src,i) \
- Y = src[2*i]; \
- dst[6*i+0] = r[Y]; dst[6*i+1] = g[Y]; dst[6*i+2] = b[Y]; \
- Y = src[2*i+1]; \
- dst[6*i+3] = r[Y]; dst[6*i+4] = g[Y]; dst[6*i+5] = b[Y];
- #define PUTBGR24(dst,src,i) \
- Y = src[2*i]; \
- dst[6*i+0] = b[Y]; dst[6*i+1] = g[Y]; dst[6*i+2] = r[Y]; \
- Y = src[2*i+1]; \
- dst[6*i+3] = b[Y]; dst[6*i+4] = g[Y]; dst[6*i+5] = r[Y];
- #define PUTRGBA(dst,ysrc,asrc,i,s) \
- Y = ysrc[2*i]; \
- dst[2*i ] = r[Y] + g[Y] + b[Y] + (asrc[2*i ]<<s); \
- Y = ysrc[2*i+1]; \
- dst[2*i+1] = r[Y] + g[Y] + b[Y] + (asrc[2*i+1]<<s);
- #define PUTRGB48(dst,src,i) \
- Y = src[2*i]; \
- dst[12*i+ 0] = dst[12*i+ 1] = r[Y]; \
- dst[12*i+ 2] = dst[12*i+ 3] = g[Y]; \
- dst[12*i+ 4] = dst[12*i+ 5] = b[Y]; \
- Y = src[2*i+1]; \
- dst[12*i+ 6] = dst[12*i+ 7] = r[Y]; \
- dst[12*i+ 8] = dst[12*i+ 9] = g[Y]; \
- dst[12*i+10] = dst[12*i+11] = b[Y];
- #define PUTBGR48(dst,src,i) \
- Y = src[2*i]; \
- dst[12*i+ 0] = dst[12*i+ 1] = b[Y]; \
- dst[12*i+ 2] = dst[12*i+ 3] = g[Y]; \
- dst[12*i+ 4] = dst[12*i+ 5] = r[Y]; \
- Y = src[2*i+1]; \
- dst[12*i+ 6] = dst[12*i+ 7] = b[Y]; \
- dst[12*i+ 8] = dst[12*i+ 9] = g[Y]; \
- dst[12*i+10] = dst[12*i+11] = r[Y];
- #define YUV2RGBFUNC(func_name, dst_type, alpha) \
- static int func_name(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, \
- int srcSliceH, uint8_t* dst[], int dstStride[]) \
- {\
- int y;\
- \
- if (!alpha && c->srcFormat == PIX_FMT_YUV422P) {\
- srcStride[1] *= 2;\
- srcStride[2] *= 2;\
- }\
- for (y=0; y<srcSliceH; y+=2) {\
- dst_type *dst_1 = (dst_type*)(dst[0] + (y+srcSliceY )*dstStride[0]);\
- dst_type *dst_2 = (dst_type*)(dst[0] + (y+srcSliceY+1)*dstStride[0]);\
- dst_type av_unused *r, *b;\
- dst_type *g;\
- const uint8_t *py_1 = src[0] + y*srcStride[0];\
- const uint8_t *py_2 = py_1 + srcStride[0];\
- const uint8_t *pu = src[1] + (y>>1)*srcStride[1];\
- const uint8_t *pv = src[2] + (y>>1)*srcStride[2];\
- const uint8_t av_unused *pa_1, *pa_2;\
- unsigned int h_size = c->dstW>>3;\
- if (alpha) {\
- pa_1 = src[3] + y*srcStride[3];\
- pa_2 = pa_1 + srcStride[3];\
- }\
- while (h_size--) {\
- int av_unused U, V;\
- int Y;\
- #define ENDYUV2RGBLINE(dst_delta)\
- pu += 4;\
- pv += 4;\
- py_1 += 8;\
- py_2 += 8;\
- dst_1 += dst_delta;\
- dst_2 += dst_delta;\
- }\
- if (c->dstW & 4) {\
- int av_unused Y, U, V;\
- #define ENDYUV2RGBFUNC()\
- }\
- }\
- return srcSliceH;\
- }
- #define CLOSEYUV2RGBFUNC(dst_delta)\
- ENDYUV2RGBLINE(dst_delta)\
- ENDYUV2RGBFUNC()
- YUV2RGBFUNC(yuv2rgb_c_48, uint8_t, 0)
- LOADCHROMA(0);
- PUTRGB48(dst_1,py_1,0);
- PUTRGB48(dst_2,py_2,0);
- LOADCHROMA(1);
- PUTRGB48(dst_2,py_2,1);
- PUTRGB48(dst_1,py_1,1);
- LOADCHROMA(2);
- PUTRGB48(dst_1,py_1,2);
- PUTRGB48(dst_2,py_2,2);
- LOADCHROMA(3);
- PUTRGB48(dst_2,py_2,3);
- PUTRGB48(dst_1,py_1,3);
- ENDYUV2RGBLINE(48)
- LOADCHROMA(0);
- PUTRGB48(dst_1,py_1,0);
- PUTRGB48(dst_2,py_2,0);
- LOADCHROMA(1);
- PUTRGB48(dst_2,py_2,1);
- PUTRGB48(dst_1,py_1,1);
- ENDYUV2RGBFUNC()
- YUV2RGBFUNC(yuv2rgb_c_bgr48, uint8_t, 0)
- LOADCHROMA(0);
- PUTBGR48(dst_1,py_1,0);
- PUTBGR48(dst_2,py_2,0);
- LOADCHROMA(1);
- PUTBGR48(dst_2,py_2,1);
- PUTBGR48(dst_1,py_1,1);
- LOADCHROMA(2);
- PUTBGR48(dst_1,py_1,2);
- PUTBGR48(dst_2,py_2,2);
- LOADCHROMA(3);
- PUTBGR48(dst_2,py_2,3);
- PUTBGR48(dst_1,py_1,3);
- ENDYUV2RGBLINE(48)
- LOADCHROMA(0);
- PUTBGR48(dst_1,py_1,0);
- PUTBGR48(dst_2,py_2,0);
- LOADCHROMA(1);
- PUTBGR48(dst_2,py_2,1);
- PUTBGR48(dst_1,py_1,1);
- ENDYUV2RGBFUNC()
- YUV2RGBFUNC(yuv2rgb_c_32, uint32_t, 0)
- LOADCHROMA(0);
- PUTRGB(dst_1,py_1,0);
- PUTRGB(dst_2,py_2,0);
- LOADCHROMA(1);
- PUTRGB(dst_2,py_2,1);
- PUTRGB(dst_1,py_1,1);
- LOADCHROMA(2);
- PUTRGB(dst_1,py_1,2);
- PUTRGB(dst_2,py_2,2);
- LOADCHROMA(3);
- PUTRGB(dst_2,py_2,3);
- PUTRGB(dst_1,py_1,3);
- ENDYUV2RGBLINE(8)
- LOADCHROMA(0);
- PUTRGB(dst_1,py_1,0);
- PUTRGB(dst_2,py_2,0);
- LOADCHROMA(1);
- PUTRGB(dst_2,py_2,1);
- PUTRGB(dst_1,py_1,1);
- ENDYUV2RGBFUNC()
- YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)
- LOADCHROMA(0);
- PUTRGBA(dst_1,py_1,pa_1,0,24);
- PUTRGBA(dst_2,py_2,pa_2,0,24);
- LOADCHROMA(1);
- PUTRGBA(dst_2,py_2,pa_1,1,24);
- PUTRGBA(dst_1,py_1,pa_2,1,24);
- LOADCHROMA(2);
- PUTRGBA(dst_1,py_1,pa_1,2,24);
- PUTRGBA(dst_2,py_2,pa_2,2,24);
- LOADCHROMA(3);
- PUTRGBA(dst_2,py_2,pa_1,3,24);
- PUTRGBA(dst_1,py_1,pa_2,3,24);
- pa_1 += 8;\
- pa_2 += 8;\
- ENDYUV2RGBLINE(8)
- LOADCHROMA(0);
- PUTRGBA(dst_1,py_1,pa_1,0,24);
- PUTRGBA(dst_2,py_2,pa_2,0,24);
- LOADCHROMA(1);
- PUTRGBA(dst_2,py_2,pa_1,1,24);
- PUTRGBA(dst_1,py_1,pa_2,1,24);
- ENDYUV2RGBFUNC()
- YUV2RGBFUNC(yuva2argb_c, uint32_t, 1)
- LOADCHROMA(0);
- PUTRGBA(dst_1,py_1,pa_1,0,0);
- PUTRGBA(dst_2,py_2,pa_2,0,0);
- LOADCHROMA(1);
- PUTRGBA(dst_2,py_2,pa_2,1,0);
- PUTRGBA(dst_1,py_1,pa_1,1,0);
- LOADCHROMA(2);
- PUTRGBA(dst_1,py_1,pa_1,2,0);
- PUTRGBA(dst_2,py_2,pa_2,2,0);
- LOADCHROMA(3);
- PUTRGBA(dst_2,py_2,pa_2,3,0);
- PUTRGBA(dst_1,py_1,pa_1,3,0);
- pa_1 += 8;\
- pa_2 += 8;\
- ENDYUV2RGBLINE(8)
- LOADCHROMA(0);
- PUTRGBA(dst_1,py_1,pa_1,0,0);
- PUTRGBA(dst_2,py_2,pa_2,0,0);
- LOADCHROMA(1);
- PUTRGBA(dst_2,py_2,pa_2,1,0);
- PUTRGBA(dst_1,py_1,pa_1,1,0);
- ENDYUV2RGBFUNC()
- YUV2RGBFUNC(yuv2rgb_c_24_rgb, uint8_t, 0)
- LOADCHROMA(0);
- PUTRGB24(dst_1,py_1,0);
- PUTRGB24(dst_2,py_2,0);
- LOADCHROMA(1);
- PUTRGB24(dst_2,py_2,1);
- PUTRGB24(dst_1,py_1,1);
- LOADCHROMA(2);
- PUTRGB24(dst_1,py_1,2);
- PUTRGB24(dst_2,py_2,2);
- LOADCHROMA(3);
- PUTRGB24(dst_2,py_2,3);
- PUTRGB24(dst_1,py_1,3);
- ENDYUV2RGBLINE(24)
- LOADCHROMA(0);
- PUTRGB24(dst_1,py_1,0);
- PUTRGB24(dst_2,py_2,0);
- LOADCHROMA(1);
- PUTRGB24(dst_2,py_2,1);
- PUTRGB24(dst_1,py_1,1);
- ENDYUV2RGBFUNC()
- // only trivial mods from yuv2rgb_c_24_rgb
- YUV2RGBFUNC(yuv2rgb_c_24_bgr, uint8_t, 0)
- LOADCHROMA(0);
- PUTBGR24(dst_1,py_1,0);
- PUTBGR24(dst_2,py_2,0);
- LOADCHROMA(1);
- PUTBGR24(dst_2,py_2,1);
- PUTBGR24(dst_1,py_1,1);
- LOADCHROMA(2);
- PUTBGR24(dst_1,py_1,2);
- PUTBGR24(dst_2,py_2,2);
- LOADCHROMA(3);
- PUTBGR24(dst_2,py_2,3);
- PUTBGR24(dst_1,py_1,3);
- ENDYUV2RGBLINE(24)
- LOADCHROMA(0);
- PUTBGR24(dst_1,py_1,0);
- PUTBGR24(dst_2,py_2,0);
- LOADCHROMA(1);
- PUTBGR24(dst_2,py_2,1);
- PUTBGR24(dst_1,py_1,1);
- ENDYUV2RGBFUNC()
- // This is exactly the same code as yuv2rgb_c_32 except for the types of
- // r, g, b, dst_1, dst_2
- YUV2RGBFUNC(yuv2rgb_c_16, uint16_t, 0)
- LOADCHROMA(0);
- PUTRGB(dst_1,py_1,0);
- PUTRGB(dst_2,py_2,0);
- LOADCHROMA(1);
- PUTRGB(dst_2,py_2,1);
- PUTRGB(dst_1,py_1,1);
- LOADCHROMA(2);
- PUTRGB(dst_1,py_1,2);
- PUTRGB(dst_2,py_2,2);
- LOADCHROMA(3);
- PUTRGB(dst_2,py_2,3);
- PUTRGB(dst_1,py_1,3);
- CLOSEYUV2RGBFUNC(8)
- // r, g, b, dst_1, dst_2
- YUV2RGBFUNC(yuv2rgb_c_12_ordered_dither, uint16_t, 0)
- const uint8_t *d16 = dither_4x4_16[y&3];
- #define PUTRGB12(dst,src,i,o) \
- Y = src[2*i]; \
- dst[2*i] = r[Y+d16[0+o]] + g[Y+d16[0+o]] + b[Y+d16[0+o]]; \
- Y = src[2*i+1]; \
- dst[2*i+1] = r[Y+d16[1+o]] + g[Y+d16[1+o]] + b[Y+d16[1+o]];
- LOADCHROMA(0);
- PUTRGB12(dst_1,py_1,0,0);
- PUTRGB12(dst_2,py_2,0,0+8);
- LOADCHROMA(1);
- PUTRGB12(dst_2,py_2,1,2+8);
- PUTRGB12(dst_1,py_1,1,2);
- LOADCHROMA(2);
- PUTRGB12(dst_1,py_1,2,4);
- PUTRGB12(dst_2,py_2,2,4+8);
- LOADCHROMA(3);
- PUTRGB12(dst_2,py_2,3,6+8);
- PUTRGB12(dst_1,py_1,3,6);
- CLOSEYUV2RGBFUNC(8)
- // r, g, b, dst_1, dst_2
- YUV2RGBFUNC(yuv2rgb_c_8_ordered_dither, uint8_t, 0)
- const uint8_t *d32 = dither_8x8_32[y&7];
- const uint8_t *d64 = dither_8x8_73[y&7];
- #define PUTRGB8(dst,src,i,o) \
- Y = src[2*i]; \
- dst[2*i] = r[Y+d32[0+o]] + g[Y+d32[0+o]] + b[Y+d64[0+o]]; \
- Y = src[2*i+1]; \
- dst[2*i+1] = r[Y+d32[1+o]] + g[Y+d32[1+o]] + b[Y+d64[1+o]];
- LOADCHROMA(0);
- 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] + c->table_gV[128];
- #define PUTRGB1(out,src,i,o) \
- Y = src[2*i]; \
- out+= out + g[Y+d128[0+o]]; \
- Y = src[2*i+1]; \
- out+= out + g[Y+d128[1+o]];
- PUTRGB1(out_1,py_1,0,0);
- PUTRGB1(out_2,py_2,0,0+8);
- PUTRGB1(out_2,py_2,1,2+8);
- PUTRGB1(out_1,py_1,1,2);
- PUTRGB1(out_1,py_1,2,4);
- PUTRGB1(out_2,py_2,2,4+8);
- PUTRGB1(out_2,py_2,3,6+8);
- PUTRGB1(out_1,py_1,3,6);
- dst_1[0]= out_1;
- dst_2[0]= out_2;
- CLOSEYUV2RGBFUNC(1)
- SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c)
- {
- SwsFunc t = NULL;
- if (HAVE_MMX) {
- t = ff_yuv2rgb_init_mmx(c);
- } else if (HAVE_VIS) {
- t = ff_yuv2rgb_init_vis(c);
- } else if (CONFIG_MLIB) {
- t = ff_yuv2rgb_init_mlib(c);
- } else if (HAVE_ALTIVEC) {
- t = ff_yuv2rgb_init_altivec(c);
- } else if (ARCH_BFIN) {
- t = ff_yuv2rgb_get_func_ptr_bfin(c);
- }
- if (t)
- return t;
- av_log(c, AV_LOG_WARNING, "No accelerated colorspace conversion found from %s to %s.\n",
- 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 && c->srcFormat == PIX_FMT_YUVA420P) return yuva2argb_c;
- case PIX_FMT_RGBA:
- case PIX_FMT_BGRA: return (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) ? yuva2rgba_c : yuv2rgb_c_32;
- case PIX_FMT_RGB24: return yuv2rgb_c_24_rgb;
- case PIX_FMT_BGR24: return yuv2rgb_c_24_bgr;
- case PIX_FMT_RGB565:
- case PIX_FMT_BGR565:
- case PIX_FMT_RGB555:
- case PIX_FMT_BGR555: return yuv2rgb_c_16;
- case PIX_FMT_RGB444:
- case PIX_FMT_BGR444: return yuv2rgb_c_12_ordered_dither;
- case PIX_FMT_RGB8:
- case PIX_FMT_BGR8: return yuv2rgb_c_8_ordered_dither;
- case PIX_FMT_RGB4:
- case PIX_FMT_BGR4: return yuv2rgb_c_4_ordered_dither;
- case PIX_FMT_RGB4_BYTE:
- case PIX_FMT_BGR4_BYTE: return yuv2rgb_c_4b_ordered_dither;
- case PIX_FMT_MONOBLACK: return yuv2rgb_c_1_ordered_dither;
- default:
- assert(0);
- }
- return NULL;
- }
- static void fill_table(uint8_t* table[256], const int elemsize, const int inc, void *y_tab)
- {
- int i;
- int64_t cb = 0;
- uint8_t *y_table = y_tab;
- y_table -= elemsize * (inc >> 9);
- for (i = 0; i < 256; i++) {
- table[i] = y_table + elemsize * (cb >> 16);
- cb += inc;
- }
- }
- static void fill_gv_table(int table[256], const int elemsize, const int inc)
- {
- int i;
- int64_t cb = 0;
- int off = -(inc >> 9);
- for (i = 0; i < 256; i++) {
- table[i] = elemsize * (off + (cb >> 16));
- cb += inc;
- }
- }
- static uint16_t roundToInt16(int64_t f)
- {
- int r= (f + (1<<15))>>16;
- if (r<-0x7FFF) return 0x8000;
- else if (r> 0x7FFF) return 0x7FFF;
- else return r;
- }
- av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], int fullRange,
- int brightness, int contrast, int saturation)
- {
- const int isRgb = c->dstFormat==PIX_FMT_RGB32
- || c->dstFormat==PIX_FMT_RGB32_1
- || c->dstFormat==PIX_FMT_BGR24
- || c->dstFormat==PIX_FMT_RGB565BE
- || c->dstFormat==PIX_FMT_RGB565LE
- || c->dstFormat==PIX_FMT_RGB555BE
- || c->dstFormat==PIX_FMT_RGB555LE
- || c->dstFormat==PIX_FMT_RGB444BE
- || c->dstFormat==PIX_FMT_RGB444LE
- || c->dstFormat==PIX_FMT_RGB8
- || c->dstFormat==PIX_FMT_RGB4
- || c->dstFormat==PIX_FMT_RGB4_BYTE
- || c->dstFormat==PIX_FMT_MONOBLACK;
- const int isNotNe = c->dstFormat==PIX_FMT_NE(RGB565LE,RGB565BE)
- || c->dstFormat==PIX_FMT_NE(RGB555LE,RGB555BE)
- || c->dstFormat==PIX_FMT_NE(RGB444LE,RGB444BE)
- || c->dstFormat==PIX_FMT_NE(BGR565LE,BGR565BE)
- || c->dstFormat==PIX_FMT_NE(BGR555LE,BGR555BE)
- || c->dstFormat==PIX_FMT_NE(BGR444LE,BGR444BE);
- const int bpp = c->dstFormatBpp;
- uint8_t *y_table;
- uint16_t *y_table16;
- uint32_t *y_table32;
- int i, base, rbase, gbase, bbase, abase, needAlpha;
- const int yoffs = fullRange ? 384 : 326;
- int64_t crv = inv_table[0];
- int64_t cbu = inv_table[1];
- int64_t cgu = -inv_table[2];
- int64_t cgv = -inv_table[3];
- int64_t cy = 1<<16;
- int64_t oy = 0;
- int64_t yb = 0;
- if (!fullRange) {
- cy = (cy*255) / 219;
- oy = 16<<16;
- } else {
- crv = (crv*224) / 255;
- cbu = (cbu*224) / 255;
- cgu = (cgu*224) / 255;
- cgv = (cgv*224) / 255;
- }
- cy = (cy *contrast ) >> 16;
- crv = (crv*contrast * saturation) >> 32;
- cbu = (cbu*contrast * saturation) >> 32;
- cgu = (cgu*contrast * saturation) >> 32;
- cgv = (cgv*contrast * saturation) >> 32;
- oy -= 256*brightness;
- c->uOffset= 0x0400040004000400LL;
- c->vOffset= 0x0400040004000400LL;
- c->yCoeff= roundToInt16(cy *8192) * 0x0001000100010001ULL;
- c->vrCoeff= roundToInt16(crv*8192) * 0x0001000100010001ULL;
- c->ubCoeff= roundToInt16(cbu*8192) * 0x0001000100010001ULL;
- c->vgCoeff= roundToInt16(cgv*8192) * 0x0001000100010001ULL;
- c->ugCoeff= roundToInt16(cgu*8192) * 0x0001000100010001ULL;
- c->yOffset= roundToInt16(oy * 8) * 0x0001000100010001ULL;
- c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy <<13);
- c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy << 9);
- c->yuv2rgb_v2r_coeff= (int16_t)roundToInt16(crv<<13);
- c->yuv2rgb_v2g_coeff= (int16_t)roundToInt16(cgv<<13);
- c->yuv2rgb_u2g_coeff= (int16_t)roundToInt16(cgu<<13);
- c->yuv2rgb_u2b_coeff= (int16_t)roundToInt16(cbu<<13);
- //scale coefficients by cy
- crv = ((crv << 16) + 0x8000) / cy;
- cbu = ((cbu << 16) + 0x8000) / cy;
- cgu = ((cgu << 16) + 0x8000) / cy;
- cgv = ((cgv << 16) + 0x8000) / cy;
- av_free(c->yuvTable);
- switch (bpp) {
- case 1:
- c->yuvTable = av_malloc(1024);
- y_table = c->yuvTable;
- yb = -(384<<16) - oy;
- for (i = 0; i < 1024-110; i++) {
- y_table[i+110] = av_clip_uint8((yb + 0x8000) >> 16) >> 7;
- yb += cy;
- }
- fill_table(c->table_gU, 1, cgu, y_table + yoffs);
- fill_gv_table(c->table_gV, 1, cgv);
- break;
- case 4:
- case 4|128:
- rbase = isRgb ? 3 : 0;
- gbase = 1;
- bbase = isRgb ? 0 : 3;
- c->yuvTable = av_malloc(1024*3);
- y_table = c->yuvTable;
- yb = -(384<<16) - oy;
- for (i = 0; i < 1024-110; i++) {
- int yval = av_clip_uint8((yb + 0x8000) >> 16);
- y_table[i+110 ] = (yval >> 7) << rbase;
- y_table[i+ 37+1024] = ((yval + 43) / 85) << gbase;
- y_table[i+110+2048] = (yval >> 7) << bbase;
- yb += cy;
- }
- fill_table(c->table_rV, 1, crv, y_table + yoffs);
- fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
- fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
- fill_gv_table(c->table_gV, 1, cgv);
- break;
- case 8:
- rbase = isRgb ? 5 : 0;
- gbase = isRgb ? 2 : 3;
- bbase = isRgb ? 0 : 6;
- c->yuvTable = av_malloc(1024*3);
- y_table = c->yuvTable;
- yb = -(384<<16) - oy;
- for (i = 0; i < 1024-38; i++) {
- int yval = av_clip_uint8((yb + 0x8000) >> 16);
- y_table[i+16 ] = ((yval + 18) / 36) << rbase;
- y_table[i+16+1024] = ((yval + 18) / 36) << gbase;
- y_table[i+37+2048] = ((yval + 43) / 85) << bbase;
- yb += cy;
- }
- fill_table(c->table_rV, 1, crv, y_table + yoffs);
- fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
- fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
- fill_gv_table(c->table_gV, 1, cgv);
- break;
- case 12:
- rbase = isRgb ? 8 : 0;
- gbase = 4;
- bbase = isRgb ? 0 : 8;
- c->yuvTable = av_malloc(1024*3*2);
- y_table16 = c->yuvTable;
- yb = -(384<<16) - oy;
- for (i = 0; i < 1024; i++) {
- uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
- y_table16[i ] = (yval >> 4) << rbase;
- y_table16[i+1024] = (yval >> 4) << gbase;
- y_table16[i+2048] = (yval >> 4) << bbase;
- yb += cy;
- }
- if (isNotNe)
- for (i = 0; i < 1024*3; i++)
- y_table16[i] = av_bswap16(y_table16[i]);
- fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
- fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
- fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
- fill_gv_table(c->table_gV, 2, cgv);
- break;
- case 15:
- case 16:
- rbase = isRgb ? bpp - 5 : 0;
- gbase = 5;
- bbase = isRgb ? 0 : (bpp - 5);
- c->yuvTable = av_malloc(1024*3*2);
- y_table16 = c->yuvTable;
- yb = -(384<<16) - oy;
- for (i = 0; i < 1024; i++) {
- uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
- y_table16[i ] = (yval >> 3) << rbase;
- y_table16[i+1024] = (yval >> (18 - bpp)) << gbase;
- y_table16[i+2048] = (yval >> 3) << bbase;
- yb += cy;
- }
- if(isNotNe)
- for (i = 0; i < 1024*3; i++)
- y_table16[i] = av_bswap16(y_table16[i]);
- fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
- fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
- fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
- fill_gv_table(c->table_gV, 2, cgv);
- break;
- case 24:
- case 48:
- c->yuvTable = av_malloc(1024);
- y_table = c->yuvTable;
- yb = -(384<<16) - oy;
- for (i = 0; i < 1024; i++) {
- y_table[i] = av_clip_uint8((yb + 0x8000) >> 16);
- yb += cy;
- }
- fill_table(c->table_rV, 1, crv, y_table + yoffs);
- fill_table(c->table_gU, 1, cgu, y_table + yoffs);
- fill_table(c->table_bU, 1, cbu, y_table + yoffs);
- fill_gv_table(c->table_gV, 1, cgv);
- break;
- case 32:
- base = (c->dstFormat == PIX_FMT_RGB32_1 || c->dstFormat == PIX_FMT_BGR32_1) ? 8 : 0;
- rbase = base + (isRgb ? 16 : 0);
- gbase = base + 8;
- bbase = base + (isRgb ? 0 : 16);
- needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat);
- if (!needAlpha)
- abase = (base + 24) & 31;
- c->yuvTable = av_malloc(1024*3*4);
- y_table32 = c->yuvTable;
- yb = -(384<<16) - oy;
- for (i = 0; i < 1024; i++) {
- uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
- y_table32[i ] = (yval << rbase) + (needAlpha ? 0 : (255 << abase));
- y_table32[i+1024] = yval << gbase;
- y_table32[i+2048] = yval << bbase;
- yb += cy;
- }
- fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
- fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + 1024);
- fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2048);
- fill_gv_table(c->table_gV, 4, cgv);
- break;
- default:
- c->yuvTable = NULL;
- av_log(c, AV_LOG_ERROR, "%ibpp not supported by yuv2rgb\n", bpp);
- return -1;
- }
- return 0;
- }
|