mirror of https://github.com/mpv-player/mpv
423 lines
9.5 KiB
C
423 lines
9.5 KiB
C
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/*
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* yuv2rgb.c, Software YUV to RGB coverter
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*
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* Copyright (C) 1999, Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
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* All Rights Reserved.
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*
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* Functions broken out from display_x11.c and several new modes
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* added by H<EFBFBD>kan Hjort <d95hjort@dtek.chalmers.se>
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*
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* 15 & 16 bpp support by Franck Sicard <Franck.Sicard@solsoft.fr>
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*
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* This file is part of mpeg2dec, a free MPEG-2 video decoder
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*
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* mpeg2dec is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* mpeg2dec is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Make; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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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 "config.h"
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//#include "video_out.h"
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#include "rgb2rgb.h"
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#ifdef HAVE_MLIB
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#include "yuv2rgb_mlib.c"
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#endif
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extern yuv2rgb_fun yuv2rgb_init_mmx (int bpp, int mode);
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uint32_t matrix_coefficients = 6;
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const int32_t Inverse_Table_6_9[8][4] = {
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{117504, 138453, 13954, 34903}, /* no sequence_display_extension */
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{117504, 138453, 13954, 34903}, /* ITU-R Rec. 709 (1990) */
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{104597, 132201, 25675, 53279}, /* unspecified */
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{104597, 132201, 25675, 53279}, /* reserved */
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{104448, 132798, 24759, 53109}, /* FCC */
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{104597, 132201, 25675, 53279}, /* ITU-R Rec. 624-4 System B, G */
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{104597, 132201, 25675, 53279}, /* SMPTE 170M */
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{117579, 136230, 16907, 35559} /* SMPTE 240M (1987) */
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};
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static void yuv2rgb_c_init (int bpp, int mode);
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yuv2rgb_fun yuv2rgb;
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static void (* yuv2rgb_c_internal) (uint8_t *, uint8_t *,
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uint8_t *, uint8_t *,
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void *, void *, int);
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static void yuv2rgb_c (void * dst, uint8_t * py,
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uint8_t * pu, uint8_t * pv,
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int h_size, int v_size,
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int rgb_stride, int y_stride, int uv_stride)
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{
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v_size >>= 1;
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while (v_size--) {
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yuv2rgb_c_internal (py, py + y_stride, pu, pv, dst, dst + rgb_stride,
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h_size);
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py += 2 * y_stride;
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pu += uv_stride;
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pv += uv_stride;
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dst += 2 * rgb_stride;
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}
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}
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void yuv2rgb_init (int bpp, int mode)
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{
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yuv2rgb = NULL;
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#ifdef HAVE_MMX
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if (yuv2rgb == NULL /*&& (config.flags & VO_MMX_ENABLE)*/) {
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yuv2rgb = yuv2rgb_init_mmx (bpp, mode);
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if (yuv2rgb != NULL)
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printf ("Using MMX for colorspace transform\n");
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else
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printf ("Cannot init MMX colorspace transform\n");
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}
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#endif
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#ifdef HAVE_MLIB
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if (yuv2rgb == NULL /*&& (config.flags & VO_MLIB_ENABLE)*/) {
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yuv2rgb = yuv2rgb_init_mlib (bpp, mode);
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if (yuv2rgb != NULL)
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printf ("Using mlib for colorspace transform\n");
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}
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#endif
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if (yuv2rgb == NULL) {
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printf ("No accelerated colorspace conversion found\n");
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yuv2rgb_c_init (bpp, mode);
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yuv2rgb = (yuv2rgb_fun)yuv2rgb_c;
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}
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}
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void * table_rV[256];
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void * table_gU[256];
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int table_gV[256];
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void * table_bU[256];
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#define RGB(i) \
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U = pu[i]; \
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V = pv[i]; \
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r = table_rV[V]; \
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g = table_gU[U] + table_gV[V]; \
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b = table_bU[U];
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#define DST1(i) \
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Y = py_1[2*i]; \
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dst_1[2*i] = r[Y] + g[Y] + b[Y]; \
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Y = py_1[2*i+1]; \
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dst_1[2*i+1] = r[Y] + g[Y] + b[Y];
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#define DST2(i) \
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Y = py_2[2*i]; \
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dst_2[2*i] = r[Y] + g[Y] + b[Y]; \
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Y = py_2[2*i+1]; \
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dst_2[2*i+1] = r[Y] + g[Y] + b[Y];
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#define DST1RGB(i) \
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Y = py_1[2*i]; \
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dst_1[6*i] = r[Y]; dst_1[6*i+1] = g[Y]; dst_1[6*i+2] = b[Y]; \
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Y = py_1[2*i+1]; \
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dst_1[6*i+3] = r[Y]; dst_1[6*i+4] = g[Y]; dst_1[6*i+5] = b[Y];
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#define DST2RGB(i) \
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Y = py_2[2*i]; \
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dst_2[6*i] = r[Y]; dst_2[6*i+1] = g[Y]; dst_2[6*i+2] = b[Y]; \
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Y = py_2[2*i+1]; \
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dst_2[6*i+3] = r[Y]; dst_2[6*i+4] = g[Y]; dst_2[6*i+5] = b[Y];
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#define DST1BGR(i) \
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Y = py_1[2*i]; \
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dst_1[6*i] = b[Y]; dst_1[6*i+1] = g[Y]; dst_1[6*i+2] = r[Y]; \
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Y = py_1[2*i+1]; \
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dst_1[6*i+3] = b[Y]; dst_1[6*i+4] = g[Y]; dst_1[6*i+5] = r[Y];
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#define DST2BGR(i) \
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Y = py_2[2*i]; \
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dst_2[6*i] = b[Y]; dst_2[6*i+1] = g[Y]; dst_2[6*i+2] = r[Y]; \
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Y = py_2[2*i+1]; \
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dst_2[6*i+3] = b[Y]; dst_2[6*i+4] = g[Y]; dst_2[6*i+5] = r[Y];
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static void yuv2rgb_c_32 (uint8_t * py_1, uint8_t * py_2,
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uint8_t * pu, uint8_t * pv,
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void * _dst_1, void * _dst_2, int h_size)
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{
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int U, V, Y;
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uint32_t * r, * g, * b;
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uint32_t * dst_1, * dst_2;
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h_size >>= 3;
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dst_1 = _dst_1;
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dst_2 = _dst_2;
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while (h_size--) {
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RGB(0);
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DST1(0);
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DST2(0);
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RGB(1);
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DST2(1);
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DST1(1);
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RGB(2);
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DST1(2);
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DST2(2);
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RGB(3);
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DST2(3);
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DST1(3);
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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 += 8;
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dst_2 += 8;
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}
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}
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// This is very near from the yuv2rgb_c_32 code
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static void yuv2rgb_c_24_rgb (uint8_t * py_1, uint8_t * py_2,
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uint8_t * pu, uint8_t * pv,
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void * _dst_1, void * _dst_2, int h_size)
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{
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int U, V, Y;
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uint8_t * r, * g, * b;
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uint8_t * dst_1, * dst_2;
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h_size >>= 3;
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dst_1 = _dst_1;
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dst_2 = _dst_2;
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while (h_size--) {
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RGB(0);
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DST1RGB(0);
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DST2RGB(0);
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RGB(1);
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DST2RGB(1);
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DST1RGB(1);
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RGB(2);
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DST1RGB(2);
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DST2RGB(2);
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RGB(3);
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DST2RGB(3);
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DST1RGB(3);
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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 += 24;
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dst_2 += 24;
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}
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}
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// only trivial mods from yuv2rgb_c_24_rgb
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static void yuv2rgb_c_24_bgr (uint8_t * py_1, uint8_t * py_2,
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uint8_t * pu, uint8_t * pv,
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void * _dst_1, void * _dst_2, int h_size)
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{
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int U, V, Y;
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uint8_t * r, * g, * b;
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uint8_t * dst_1, * dst_2;
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h_size >>= 3;
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dst_1 = _dst_1;
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dst_2 = _dst_2;
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while (h_size--) {
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RGB(0);
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DST1BGR(0);
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DST2BGR(0);
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RGB(1);
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DST2BGR(1);
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DST1BGR(1);
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RGB(2);
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DST1BGR(2);
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DST2BGR(2);
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RGB(3);
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DST2BGR(3);
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DST1BGR(3);
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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 += 24;
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dst_2 += 24;
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}
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}
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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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static void yuv2rgb_c_16 (uint8_t * py_1, uint8_t * py_2,
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uint8_t * pu, uint8_t * pv,
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void * _dst_1, void * _dst_2, int h_size)
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{
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int U, V, Y;
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uint16_t * r, * g, * b;
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uint16_t * dst_1, * dst_2;
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h_size >>= 3;
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dst_1 = _dst_1;
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dst_2 = _dst_2;
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while (h_size--) {
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RGB(0);
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DST1(0);
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DST2(0);
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RGB(1);
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DST2(1);
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DST1(1);
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RGB(2);
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DST1(2);
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DST2(2);
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RGB(3);
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DST2(3);
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DST1(3);
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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 += 8;
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dst_2 += 8;
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}
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}
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static int div_round (int dividend, int divisor)
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{
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if (dividend > 0)
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return (dividend + (divisor>>1)) / divisor;
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else
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return -((-dividend + (divisor>>1)) / divisor);
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}
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static void yuv2rgb_c_init (int bpp, int mode)
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{
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int i;
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uint8_t table_Y[1024];
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uint32_t *table_32 = 0;
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uint16_t *table_16 = 0;
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uint8_t *table_8 = 0;
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uint32_t entry_size = 0;
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void *table_r = 0, *table_g = 0, *table_b = 0;
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int crv = Inverse_Table_6_9[matrix_coefficients][0];
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int cbu = Inverse_Table_6_9[matrix_coefficients][1];
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int cgu = -Inverse_Table_6_9[matrix_coefficients][2];
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int cgv = -Inverse_Table_6_9[matrix_coefficients][3];
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for (i = 0; i < 1024; i++) {
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int j;
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j = (76309 * (i - 384 - 16) + 32768) >> 16;
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j = (j < 0) ? 0 : ((j > 255) ? 255 : j);
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table_Y[i] = j;
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}
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|||
|
|
switch (bpp) {
|
|||
|
|
case 32:
|
|||
|
|
yuv2rgb_c_internal = yuv2rgb_c_32;
|
|||
|
|
|
|||
|
|
table_32 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint32_t));
|
|||
|
|
|
|||
|
|
entry_size = sizeof (uint32_t);
|
|||
|
|
table_r = table_32 + 197;
|
|||
|
|
table_b = table_32 + 197 + 685;
|
|||
|
|
table_g = table_32 + 197 + 2*682;
|
|||
|
|
|
|||
|
|
for (i = -197; i < 256+197; i++)
|
|||
|
|
((uint32_t *)table_r)[i] = table_Y[i+384] << ((mode==MODE_RGB) ? 16 : 0);
|
|||
|
|
for (i = -132; i < 256+132; i++)
|
|||
|
|
((uint32_t *)table_g)[i] = table_Y[i+384] << 8;
|
|||
|
|
for (i = -232; i < 256+232; i++)
|
|||
|
|
((uint32_t *)table_b)[i] = table_Y[i+384] << ((mode==MODE_RGB) ? 0 : 16);
|
|||
|
|
break;
|
|||
|
|
|
|||
|
|
case 24:
|
|||
|
|
// yuv2rgb_c_internal = (mode==MODE_RGB) ? yuv2rgb_c_24_rgb : yuv2rgb_c_24_bgr;
|
|||
|
|
yuv2rgb_c_internal = (mode!=MODE_RGB) ? yuv2rgb_c_24_rgb : yuv2rgb_c_24_bgr;
|
|||
|
|
|
|||
|
|
table_8 = malloc ((256 + 2*232) * sizeof (uint8_t));
|
|||
|
|
|
|||
|
|
entry_size = sizeof (uint8_t);
|
|||
|
|
table_r = table_g = table_b = table_8 + 232;
|
|||
|
|
|
|||
|
|
for (i = -232; i < 256+232; i++)
|
|||
|
|
((uint8_t * )table_b)[i] = table_Y[i+384];
|
|||
|
|
break;
|
|||
|
|
|
|||
|
|
case 15:
|
|||
|
|
case 16:
|
|||
|
|
yuv2rgb_c_internal = yuv2rgb_c_16;
|
|||
|
|
|
|||
|
|
table_16 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint16_t));
|
|||
|
|
|
|||
|
|
entry_size = sizeof (uint16_t);
|
|||
|
|
table_r = table_16 + 197;
|
|||
|
|
table_b = table_16 + 197 + 685;
|
|||
|
|
table_g = table_16 + 197 + 2*682;
|
|||
|
|
|
|||
|
|
for (i = -197; i < 256+197; i++) {
|
|||
|
|
int j = table_Y[i+384] >> 3;
|
|||
|
|
|
|||
|
|
if (mode == MODE_RGB)
|
|||
|
|
j <<= ((bpp==16) ? 11 : 10);
|
|||
|
|
|
|||
|
|
((uint16_t *)table_r)[i] = j;
|
|||
|
|
}
|
|||
|
|
for (i = -132; i < 256+132; i++) {
|
|||
|
|
int j = table_Y[i+384] >> ((bpp==16) ? 2 : 3);
|
|||
|
|
|
|||
|
|
((uint16_t *)table_g)[i] = j << 5;
|
|||
|
|
}
|
|||
|
|
for (i = -232; i < 256+232; i++) {
|
|||
|
|
int j = table_Y[i+384] >> 3;
|
|||
|
|
|
|||
|
|
if (mode == MODE_BGR)
|
|||
|
|
j <<= ((bpp==16) ? 11 : 10);
|
|||
|
|
|
|||
|
|
((uint16_t *)table_b)[i] = j;
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
|
|||
|
|
default:
|
|||
|
|
printf ("%ibpp not supported by yuv2rgb\n", bpp);
|
|||
|
|
//exit (1);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
for (i = 0; i < 256; i++) {
|
|||
|
|
table_rV[i] = table_r + entry_size * div_round (crv * (i-128), 76309);
|
|||
|
|
table_gU[i] = table_g + entry_size * div_round (cgu * (i-128), 76309);
|
|||
|
|
table_gV[i] = entry_size * div_round (cgv * (i-128), 76309);
|
|||
|
|
table_bU[i] = table_b + entry_size * div_round (cbu * (i-128), 76309);
|
|||
|
|
}
|
|||
|
|
}
|