diff options
author | 2009-02-24 22:40:20 +0000 | |
---|---|---|
committer | 2009-02-24 22:40:20 +0000 | |
commit | e1724e3000b9f37af6f14b42910bb4a05d797147 (patch) | |
tree | db5eaad495b60e78f8bd6f09db38a3fe42c40003 /libswscale/yuv2rgb.c | |
parent | 1ae523f93d199b45169b6b0d5b853b022ec57e09 (diff) |
Rename yuv2rgb2.c --> yuv2rgb.c.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@28723 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libswscale/yuv2rgb.c')
-rw-r--r-- | libswscale/yuv2rgb.c | 683 |
1 files changed, 683 insertions, 0 deletions
diff --git a/libswscale/yuv2rgb.c b/libswscale/yuv2rgb.c new file mode 100644 index 0000000000..53a0d4e7b8 --- /dev/null +++ b/libswscale/yuv2rgb.c @@ -0,0 +1,683 @@ +/* + * software YUV to RGB converter + * + * Copyright (C) 2009 Konstantin Shishkov + * + * MMX/MMX2 template stuff (needed for fast movntq support), + * 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" + +#define DITHER1XBPP // only for MMX + +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]; + +#if HAVE_MMX && CONFIG_GPL + +/* hope these constant values are cache line aligned */ +DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw) = 0x00ff00ff00ff00ffULL; +DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL; +DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL; + +//MMX versions +#undef RENAME +#undef HAVE_MMX2 +#undef HAVE_AMD3DNOW +#define HAVE_MMX2 0 +#define HAVE_AMD3DNOW 0 +#define RENAME(a) a ## _MMX +#include "yuv2rgb_template.c" + +//MMX2 versions +#undef RENAME +#undef HAVE_MMX2 +#define HAVE_MMX2 1 +#define RENAME(a) a ## _MMX2 +#include "yuv2rgb_template.c" + +#endif /* HAVE_MMX && CONFIG_GPL */ + +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 YUV2RGBFUNC(func_name, dst_type) \ +static int func_name(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, \ + int srcSliceH, uint8_t* dst[], int dstStride[]){\ + int y;\ +\ + if (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];\ + unsigned int h_size = c->dstW>>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) + 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(yuv2rgb_c_24_rgb, uint8_t) + 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) + 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) + 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) + 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) + 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) + 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) + 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) + 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) + 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) + 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 sws_yuv2rgb_get_func_ptr(SwsContext *c) +{ + SwsFunc t = NULL; +#if (HAVE_MMX2 || HAVE_MMX) && CONFIG_GPL + 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 + t = sws_yuv2rgb_init_vis(c); +#endif +#if CONFIG_MLIB + t = sws_yuv2rgb_init_mlib(c); +#endif +#if HAVE_ALTIVEC && CONFIG_GPL + if (c->flags & SWS_CPU_CAPS_ALTIVEC) + t = sws_yuv2rgb_init_altivec(c); +#endif + +#if ARCH_BFIN + if (c->flags & SWS_CPU_CAPS_BFIN) + t = sws_ff_bfin_yuv2rgb_get_func_ptr(c); +#endif + + if (t) + return t; + + 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 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 sws_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; + 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); + 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; + 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; +} |