mirror of https://github.com/mpv-player/mpv
475 lines
12 KiB
C
475 lines
12 KiB
C
/*
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* Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of MPlayer.
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*
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* MPlayer 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 of the License, or
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* (at your option) any later version.
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*
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* MPlayer 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 along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 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 <string.h>
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#include <inttypes.h>
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#include <math.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "cpudetect.h"
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#if HAVE_MALLOC_H
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#include <malloc.h>
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#endif
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#include "img_format.h"
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#include "mp_image.h"
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#include "vf.h"
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#include "libvo/fastmemcpy.h"
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#include "libavutil/mem.h"
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#define MAX_NOISE 4096
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#define MAX_SHIFT 1024
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#define MAX_RES (MAX_NOISE-MAX_SHIFT)
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//===========================================================================//
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static inline void lineNoise_C(uint8_t *dst, uint8_t *src, int8_t *noise, int len, int shift);
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static inline void lineNoiseAvg_C(uint8_t *dst, uint8_t *src, int len, int8_t **shift);
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static void (*lineNoise)(uint8_t *dst, uint8_t *src, int8_t *noise, int len, int shift)= lineNoise_C;
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static void (*lineNoiseAvg)(uint8_t *dst, uint8_t *src, int len, int8_t **shift)= lineNoiseAvg_C;
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typedef struct FilterParam{
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int strength;
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int uniform;
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int temporal;
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int quality;
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int averaged;
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int pattern;
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int shiftptr;
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int8_t *noise;
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int8_t *prev_shift[MAX_RES][3];
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}FilterParam;
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struct vf_priv_s {
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FilterParam lumaParam;
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FilterParam chromaParam;
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unsigned int outfmt;
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};
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static int nonTempRandShift_init;
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static int nonTempRandShift[MAX_RES];
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static int patt[4] = {
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-1,0,1,0
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};
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#define RAND_N(range) ((int) ((double)range*rand()/(RAND_MAX+1.0)))
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static int8_t *initNoise(FilterParam *fp){
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int strength= fp->strength;
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int uniform= fp->uniform;
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int averaged= fp->averaged;
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int pattern= fp->pattern;
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int8_t *noise= av_malloc(MAX_NOISE*sizeof(int8_t));
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int i, j;
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srand(123457);
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for(i=0,j=0; i<MAX_NOISE; i++,j++)
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{
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if(uniform) {
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if (averaged) {
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if (pattern) {
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noise[i]= (RAND_N(strength) - strength/2)/6
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+patt[j%4]*strength*0.25/3;
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} else {
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noise[i]= (RAND_N(strength) - strength/2)/3;
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}
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} else {
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if (pattern) {
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noise[i]= (RAND_N(strength) - strength/2)/2
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+ patt[j%4]*strength*0.25;
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} else {
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noise[i]= RAND_N(strength) - strength/2;
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}
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}
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} else {
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double x1, x2, w, y1;
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do {
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x1 = 2.0 * rand()/(float)RAND_MAX - 1.0;
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x2 = 2.0 * rand()/(float)RAND_MAX - 1.0;
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w = x1 * x1 + x2 * x2;
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} while ( w >= 1.0 );
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w = sqrt( (-2.0 * log( w ) ) / w );
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y1= x1 * w;
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y1*= strength / sqrt(3.0);
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if (pattern) {
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y1 /= 2;
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y1 += patt[j%4]*strength*0.35;
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}
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if (y1<-128) y1=-128;
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else if(y1> 127) y1= 127;
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if (averaged) y1 /= 3.0;
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noise[i]= (int)y1;
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}
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if (RAND_N(6) == 0) j--;
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}
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for (i = 0; i < MAX_RES; i++)
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for (j = 0; j < 3; j++)
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fp->prev_shift[i][j] = noise + (rand()&(MAX_SHIFT-1));
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if(!nonTempRandShift_init){
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for(i=0; i<MAX_RES; i++){
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nonTempRandShift[i]= rand()&(MAX_SHIFT-1);
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}
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nonTempRandShift_init = 1;
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}
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fp->noise= noise;
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fp->shiftptr= 0;
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return noise;
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}
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/***************************************************************************/
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#if HAVE_MMX
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static inline void lineNoise_MMX(uint8_t *dst, uint8_t *src, int8_t *noise, int len, int shift){
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x86_reg mmx_len= len&(~7);
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noise+=shift;
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__asm__ volatile(
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"mov %3, %%"REG_a" \n\t"
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"pcmpeqb %%mm7, %%mm7 \n\t"
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"psllw $15, %%mm7 \n\t"
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"packsswb %%mm7, %%mm7 \n\t"
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ASMALIGN(4)
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"1: \n\t"
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"movq (%0, %%"REG_a"), %%mm0 \n\t"
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"movq (%1, %%"REG_a"), %%mm1 \n\t"
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"pxor %%mm7, %%mm0 \n\t"
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"paddsb %%mm1, %%mm0 \n\t"
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"pxor %%mm7, %%mm0 \n\t"
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"movq %%mm0, (%2, %%"REG_a") \n\t"
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"add $8, %%"REG_a" \n\t"
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" js 1b \n\t"
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:: "r" (src+mmx_len), "r" (noise+mmx_len), "r" (dst+mmx_len), "g" (-mmx_len)
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: "%"REG_a
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);
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if(mmx_len!=len)
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lineNoise_C(dst+mmx_len, src+mmx_len, noise+mmx_len, len-mmx_len, 0);
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}
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#endif
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//duplicate of previous except movntq
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#if HAVE_MMX2
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static inline void lineNoise_MMX2(uint8_t *dst, uint8_t *src, int8_t *noise, int len, int shift){
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x86_reg mmx_len= len&(~7);
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noise+=shift;
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__asm__ volatile(
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"mov %3, %%"REG_a" \n\t"
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"pcmpeqb %%mm7, %%mm7 \n\t"
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"psllw $15, %%mm7 \n\t"
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"packsswb %%mm7, %%mm7 \n\t"
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ASMALIGN(4)
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"1: \n\t"
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"movq (%0, %%"REG_a"), %%mm0 \n\t"
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"movq (%1, %%"REG_a"), %%mm1 \n\t"
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"pxor %%mm7, %%mm0 \n\t"
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"paddsb %%mm1, %%mm0 \n\t"
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"pxor %%mm7, %%mm0 \n\t"
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"movntq %%mm0, (%2, %%"REG_a") \n\t"
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"add $8, %%"REG_a" \n\t"
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" js 1b \n\t"
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:: "r" (src+mmx_len), "r" (noise+mmx_len), "r" (dst+mmx_len), "g" (-mmx_len)
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: "%"REG_a
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);
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if(mmx_len!=len)
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lineNoise_C(dst+mmx_len, src+mmx_len, noise+mmx_len, len-mmx_len, 0);
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}
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#endif
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static inline void lineNoise_C(uint8_t *dst, uint8_t *src, int8_t *noise, int len, int shift){
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int i;
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noise+= shift;
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for(i=0; i<len; i++)
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{
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int v= src[i]+ noise[i];
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if(v>255) dst[i]=255; //FIXME optimize
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else if(v<0) dst[i]=0;
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else dst[i]=v;
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}
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}
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/***************************************************************************/
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#if HAVE_MMX
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static inline void lineNoiseAvg_MMX(uint8_t *dst, uint8_t *src, int len, int8_t **shift){
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x86_reg mmx_len= len&(~7);
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__asm__ volatile(
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"mov %5, %%"REG_a" \n\t"
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ASMALIGN(4)
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"1: \n\t"
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"movq (%1, %%"REG_a"), %%mm1 \n\t"
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"movq (%0, %%"REG_a"), %%mm0 \n\t"
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"paddb (%2, %%"REG_a"), %%mm1 \n\t"
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"paddb (%3, %%"REG_a"), %%mm1 \n\t"
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"movq %%mm0, %%mm2 \n\t"
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"movq %%mm1, %%mm3 \n\t"
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"punpcklbw %%mm0, %%mm0 \n\t"
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"punpckhbw %%mm2, %%mm2 \n\t"
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"punpcklbw %%mm1, %%mm1 \n\t"
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"punpckhbw %%mm3, %%mm3 \n\t"
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"pmulhw %%mm0, %%mm1 \n\t"
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"pmulhw %%mm2, %%mm3 \n\t"
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"paddw %%mm1, %%mm1 \n\t"
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"paddw %%mm3, %%mm3 \n\t"
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"paddw %%mm0, %%mm1 \n\t"
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"paddw %%mm2, %%mm3 \n\t"
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"psrlw $8, %%mm1 \n\t"
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"psrlw $8, %%mm3 \n\t"
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"packuswb %%mm3, %%mm1 \n\t"
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"movq %%mm1, (%4, %%"REG_a") \n\t"
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"add $8, %%"REG_a" \n\t"
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" js 1b \n\t"
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:: "r" (src+mmx_len), "r" (shift[0]+mmx_len), "r" (shift[1]+mmx_len), "r" (shift[2]+mmx_len),
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"r" (dst+mmx_len), "g" (-mmx_len)
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: "%"REG_a
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);
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if(mmx_len!=len){
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int8_t *shift2[3]={shift[0]+mmx_len, shift[1]+mmx_len, shift[2]+mmx_len};
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lineNoiseAvg_C(dst+mmx_len, src+mmx_len, len-mmx_len, shift2);
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}
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}
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#endif
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static inline void lineNoiseAvg_C(uint8_t *dst, uint8_t *src, int len, int8_t **shift){
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int i;
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int8_t *src2= (int8_t*)src;
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for(i=0; i<len; i++)
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{
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const int n= shift[0][i] + shift[1][i] + shift[2][i];
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dst[i]= src2[i]+((n*src2[i])>>7);
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}
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}
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/***************************************************************************/
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static void noise(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int width, int height, FilterParam *fp){
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int8_t *noise= fp->noise;
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int y;
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int shift=0;
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if(!noise)
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{
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if(src==dst) return;
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if(dstStride==srcStride) fast_memcpy(dst, src, srcStride*height);
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else
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{
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for(y=0; y<height; y++)
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{
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fast_memcpy(dst, src, width);
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dst+= dstStride;
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src+= srcStride;
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}
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}
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return;
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}
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for(y=0; y<height; y++)
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{
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if(fp->temporal) shift= rand()&(MAX_SHIFT -1);
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else shift= nonTempRandShift[y];
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if(fp->quality==0) shift&= ~7;
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if (fp->averaged) {
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lineNoiseAvg(dst, src, width, fp->prev_shift[y]);
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fp->prev_shift[y][fp->shiftptr] = noise + shift;
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} else {
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lineNoise(dst, src, noise, width, shift);
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}
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dst+= dstStride;
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src+= srcStride;
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}
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fp->shiftptr++;
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if (fp->shiftptr == 3) fp->shiftptr = 0;
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}
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static int config(struct vf_instance* vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt){
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return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
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}
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static void get_image(struct vf_instance* vf, mp_image_t *mpi){
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if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change
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if(mpi->imgfmt!=vf->priv->outfmt) return; // colorspace differ
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// ok, we can do pp in-place (or pp disabled):
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vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
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mpi->type, mpi->flags, mpi->w, mpi->h);
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mpi->planes[0]=vf->dmpi->planes[0];
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mpi->stride[0]=vf->dmpi->stride[0];
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mpi->width=vf->dmpi->width;
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if(mpi->flags&MP_IMGFLAG_PLANAR){
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mpi->planes[1]=vf->dmpi->planes[1];
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mpi->planes[2]=vf->dmpi->planes[2];
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mpi->stride[1]=vf->dmpi->stride[1];
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mpi->stride[2]=vf->dmpi->stride[2];
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}
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mpi->flags|=MP_IMGFLAG_DIRECT;
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}
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static int put_image(struct vf_instance* vf, mp_image_t *mpi, double pts){
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mp_image_t *dmpi;
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if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
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// no DR, so get a new image! hope we'll get DR buffer:
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vf->dmpi=vf_get_image(vf->next,vf->priv->outfmt,
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MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
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mpi->w,mpi->h);
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//printf("nodr\n");
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}
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//else printf("dr\n");
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dmpi= vf->dmpi;
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noise(dmpi->planes[0], mpi->planes[0], dmpi->stride[0], mpi->stride[0], mpi->w, mpi->h, &vf->priv->lumaParam);
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noise(dmpi->planes[1], mpi->planes[1], dmpi->stride[1], mpi->stride[1], mpi->w/2, mpi->h/2, &vf->priv->chromaParam);
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noise(dmpi->planes[2], mpi->planes[2], dmpi->stride[2], mpi->stride[2], mpi->w/2, mpi->h/2, &vf->priv->chromaParam);
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vf_clone_mpi_attributes(dmpi, mpi);
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#if HAVE_MMX
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if(gCpuCaps.hasMMX) __asm__ volatile ("emms\n\t");
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#endif
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#if HAVE_MMX2
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if(gCpuCaps.hasMMX2) __asm__ volatile ("sfence\n\t");
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#endif
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return vf_next_put_image(vf,dmpi, pts);
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}
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static void uninit(struct vf_instance* vf){
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if(!vf->priv) return;
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if(vf->priv->chromaParam.noise) av_free(vf->priv->chromaParam.noise);
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vf->priv->chromaParam.noise= NULL;
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if(vf->priv->lumaParam.noise) av_free(vf->priv->lumaParam.noise);
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vf->priv->lumaParam.noise= NULL;
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free(vf->priv);
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vf->priv=NULL;
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}
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//===========================================================================//
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static int query_format(struct vf_instance* vf, unsigned int fmt){
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switch(fmt)
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{
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case IMGFMT_YV12:
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case IMGFMT_I420:
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case IMGFMT_IYUV:
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return vf_next_query_format(vf,vf->priv->outfmt);
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}
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return 0;
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}
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static void parse(FilterParam *fp, char* args){
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char *pos;
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char *max= strchr(args, ':');
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if(!max) max= args + strlen(args);
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fp->strength= atoi(args);
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pos= strchr(args, 'u');
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if(pos && pos<max) fp->uniform=1;
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pos= strchr(args, 't');
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if(pos && pos<max) fp->temporal=1;
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pos= strchr(args, 'h');
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if(pos && pos<max) fp->quality=1;
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pos= strchr(args, 'p');
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if(pos && pos<max) fp->pattern=1;
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pos= strchr(args, 'a');
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if(pos && pos<max) {
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fp->temporal=1;
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fp->averaged=1;
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}
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if(fp->strength) initNoise(fp);
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}
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static const unsigned int fmt_list[]={
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IMGFMT_YV12,
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IMGFMT_I420,
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IMGFMT_IYUV,
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0
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};
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static int vf_open(vf_instance_t *vf, char *args){
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vf->config=config;
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vf->put_image=put_image;
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vf->get_image=get_image;
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vf->query_format=query_format;
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vf->uninit=uninit;
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vf->priv=malloc(sizeof(struct vf_priv_s));
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memset(vf->priv, 0, sizeof(struct vf_priv_s));
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if(args)
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{
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char *arg2= strchr(args,':');
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if(arg2) parse(&vf->priv->chromaParam, arg2+1);
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parse(&vf->priv->lumaParam, args);
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}
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// check csp:
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vf->priv->outfmt=vf_match_csp(&vf->next,fmt_list,IMGFMT_YV12);
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if(!vf->priv->outfmt)
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{
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uninit(vf);
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return 0; // no csp match :(
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}
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#if HAVE_MMX
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if(gCpuCaps.hasMMX){
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lineNoise= lineNoise_MMX;
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lineNoiseAvg= lineNoiseAvg_MMX;
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}
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#endif
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#if HAVE_MMX2
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if(gCpuCaps.hasMMX2) lineNoise= lineNoise_MMX2;
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// if(gCpuCaps.hasMMX) lineNoiseAvg= lineNoiseAvg_MMX2;
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#endif
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return 1;
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}
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const vf_info_t vf_info_noise = {
|
|
"noise generator",
|
|
"noise",
|
|
"Michael Niedermayer",
|
|
"",
|
|
vf_open,
|
|
NULL
|
|
};
|
|
|
|
//===========================================================================//
|