| /* |
| * 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/x86_cpu.h" |
| |
| 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) */ |
| }; |
| |
| #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,o) \ |
| Y = src[2*i+o]; \ |
| dst[2*i ] = r[Y] + g[Y] + b[Y]; \ |
| Y = src[2*i+1-o]; \ |
| 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,o,s) \ |
| Y = ysrc[2*i+o]; \ |
| dst[2*i ] = r[Y] + g[Y] + b[Y] + (asrc[2*i ]<<s); \ |
| Y = ysrc[2*i+1-o]; \ |
| dst[2*i+1] = r[Y] + g[Y] + b[Y] + (asrc[2*i+1]<<s); |
| |
| #define YUV2RGBFUNC(func_name, dst_type, alpha) \ |
| static int func_name(SwsContext *c, 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;\ |
| uint8_t *py_1 = src[0] + y*srcStride[0];\ |
| uint8_t *py_2 = py_1 + srcStride[0];\ |
| uint8_t *pu = src[1] + (y>>1)*srcStride[1];\ |
| uint8_t *pv = src[2] + (y>>1)*srcStride[2];\ |
| 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_32, uint32_t, 0) |
| LOADCHROMA(0); |
| PUTRGB(dst_1,py_1,0,0); |
| PUTRGB(dst_2,py_2,0,1); |
| |
| LOADCHROMA(1); |
| PUTRGB(dst_2,py_2,1,1); |
| PUTRGB(dst_1,py_1,1,0); |
| LOADCHROMA(1); |
| PUTRGB(dst_2,py_2,1,1); |
| PUTRGB(dst_1,py_1,1,0); |
| |
| LOADCHROMA(2); |
| PUTRGB(dst_1,py_1,2,0); |
| PUTRGB(dst_2,py_2,2,1); |
| |
| LOADCHROMA(3); |
| PUTRGB(dst_2,py_2,3,1); |
| PUTRGB(dst_1,py_1,3,0); |
| ENDYUV2RGBLINE(8) |
| LOADCHROMA(0); |
| PUTRGB(dst_1,py_1,0,0); |
| PUTRGB(dst_2,py_2,0,1); |
| |
| LOADCHROMA(1); |
| PUTRGB(dst_2,py_2,1,1); |
| PUTRGB(dst_1,py_1,1,0); |
| ENDYUV2RGBFUNC() |
| |
| YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1) |
| LOADCHROMA(0); |
| PUTRGBA(dst_1,py_1,pa_1,0,0,24); |
| PUTRGBA(dst_2,py_2,pa_2,0,1,24); |
| |
| LOADCHROMA(1); |
| PUTRGBA(dst_2,py_2,pa_1,1,1,24); |
| PUTRGBA(dst_1,py_1,pa_2,1,0,24); |
| LOADCHROMA(1); |
| PUTRGBA(dst_2,py_2,pa_1,1,1,24); |
| PUTRGBA(dst_1,py_1,pa_2,1,0,24); |
| |
| LOADCHROMA(2); |
| PUTRGBA(dst_1,py_1,pa_1,2,0,24); |
| PUTRGBA(dst_2,py_2,pa_2,2,1,24); |
| |
| LOADCHROMA(3); |
| PUTRGBA(dst_2,py_2,pa_1,3,1,24); |
| PUTRGBA(dst_1,py_1,pa_2,3,0,24); |
| pa_1 += 8;\ |
| pa_2 += 8;\ |
| ENDYUV2RGBLINE(8) |
| LOADCHROMA(0); |
| PUTRGBA(dst_1,py_1,pa_1,0,0,24); |
| PUTRGBA(dst_2,py_2,pa_2,0,1,24); |
| |
| LOADCHROMA(1); |
| PUTRGBA(dst_2,py_2,pa_1,1,1,24); |
| PUTRGBA(dst_1,py_1,pa_2,1,0,24); |
| ENDYUV2RGBFUNC() |
| |
| YUV2RGBFUNC(yuva2argb_c, uint32_t, 1) |
| LOADCHROMA(0); |
| PUTRGBA(dst_1,py_1,pa_1,0,0,0); |
| PUTRGBA(dst_2,py_2,pa_2,0,1,0); |
| |
| LOADCHROMA(1); |
| PUTRGBA(dst_2,py_2,pa_2,1,1,0); |
| PUTRGBA(dst_1,py_1,pa_1,1,0,0); |
| LOADCHROMA(1); |
| PUTRGBA(dst_2,py_2,pa_2,1,1,0); |
| PUTRGBA(dst_1,py_1,pa_1,1,0,0); |
| |
| LOADCHROMA(2); |
| PUTRGBA(dst_1,py_1,pa_1,2,0,0); |
| PUTRGBA(dst_2,py_2,pa_2,2,1,0); |
| |
| LOADCHROMA(3); |
| PUTRGBA(dst_2,py_2,pa_2,3,1,0); |
| PUTRGBA(dst_1,py_1,pa_1,3,0,0); |
| pa_1 += 8;\ |
| pa_2 += 8;\ |
| ENDYUV2RGBLINE(8) |
| LOADCHROMA(0); |
| PUTRGBA(dst_1,py_1,pa_1,0,0,0); |
| PUTRGBA(dst_2,py_2,pa_2,0,1,0); |
| |
| LOADCHROMA(1); |
| PUTRGBA(dst_2,py_2,pa_2,1,1,0); |
| PUTRGBA(dst_1,py_1,pa_1,1,0,0); |
| 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_1,0,0); |
| PUTRGB(dst_2,py_2,0,1); |
| |
| LOADCHROMA(1); |
| PUTRGB(dst_2,py_2,1,1); |
| PUTRGB(dst_1,py_1,1,0); |
| |
| LOADCHROMA(2); |
| PUTRGB(dst_1,py_1,2,0); |
| PUTRGB(dst_2,py_2,2,1); |
| |
| LOADCHROMA(3); |
| PUTRGB(dst_2,py_2,3,1); |
| PUTRGB(dst_1,py_1,3,0); |
| CLOSEYUV2RGBFUNC(8) |
| |
| // 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_8, uint8_t, 0) |
| LOADCHROMA(0); |
| PUTRGB(dst_1,py_1,0,0); |
| PUTRGB(dst_2,py_2,0,1); |
| |
| LOADCHROMA(1); |
| PUTRGB(dst_2,py_2,1,1); |
| PUTRGB(dst_1,py_1,1,0); |
| |
| LOADCHROMA(2); |
| PUTRGB(dst_1,py_1,2,0); |
| PUTRGB(dst_2,py_2,2,1); |
| |
| LOADCHROMA(3); |
| PUTRGB(dst_2,py_2,3,1); |
| PUTRGB(dst_1,py_1,3,0); |
| 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) |
| |
| |
| // 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_4, uint8_t, 0) |
| int acc; |
| #define PUTRGB4(dst,src,i) \ |
| Y = src[2*i]; \ |
| acc = r[Y] + g[Y] + b[Y]; \ |
| Y = src[2*i+1]; \ |
| acc |= (r[Y] + g[Y] + b[Y])<<4; \ |
| dst[i] = acc; |
| |
| LOADCHROMA(0); |
| PUTRGB4(dst_1,py_1,0); |
| PUTRGB4(dst_2,py_2,0); |
| |
| LOADCHROMA(1); |
| PUTRGB4(dst_2,py_2,1); |
| PUTRGB4(dst_1,py_1,1); |
| |
| LOADCHROMA(2); |
| PUTRGB4(dst_1,py_1,2); |
| PUTRGB4(dst_2,py_2,2); |
| |
| LOADCHROMA(3); |
| PUTRGB4(dst_2,py_2,3); |
| PUTRGB4(dst_1,py_1,3); |
| CLOSEYUV2RGBFUNC(4) |
| |
| 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) |
| |
| // 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_4b, uint8_t, 0) |
| LOADCHROMA(0); |
| PUTRGB(dst_1,py_1,0,0); |
| PUTRGB(dst_2,py_2,0,1); |
| |
| LOADCHROMA(1); |
| PUTRGB(dst_2,py_2,1,1); |
| PUTRGB(dst_1,py_1,1,0); |
| |
| LOADCHROMA(2); |
| PUTRGB(dst_1,py_1,2,0); |
| PUTRGB(dst_2,py_2,2,1); |
| |
| LOADCHROMA(3); |
| PUTRGB(dst_2,py_2,3,1); |
| PUTRGB(dst_1,py_1,3,0); |
| CLOSEYUV2RGBFUNC(8) |
| |
| 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_MMX2 || HAVE_MMX) && CONFIG_GPL |
| t = ff_yuv2rgb_init_mmx(c); |
| #endif |
| #if HAVE_VIS |
| t = ff_yuv2rgb_init_vis(c); |
| #endif |
| #if CONFIG_MLIB |
| t = ff_yuv2rgb_init_mlib(c); |
| #endif |
| #if HAVE_ALTIVEC && CONFIG_GPL |
| if (c->flags & SWS_CPU_CAPS_ALTIVEC) |
| t = ff_yuv2rgb_init_altivec(c); |
| #endif |
| |
| #if ARCH_BFIN |
| if (c->flags & SWS_CPU_CAPS_BFIN) |
| t = ff_yuv2rgb_get_func_ptr_bfin(c); |
| #endif |
| |
| if (t) |
| return t; |
| |
| av_log(c, AV_LOG_WARNING, "No accelerated colorspace conversion found.\n"); |
| |
| switch (c->dstFormat) { |
| 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_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, uint8_t *y_table) |
| { |
| int i; |
| int64_t cb = 0; |
| |
| 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; |
| } |
| } |
| |
| 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_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); |
| 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; |
| |
| //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 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; |
| } |
| 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: |
| 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; |
| } |
