vf_yadif.c

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· C语言 代码 · 共 524 行 · 第 1/2 页

/*
    Copyright (C) 2006 Michael Niedermayer <[e-mail]>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/

#include <uclib.h>
#include <uclib.h>
#include <uclib.h>
#include <inttypes.h>
#include <math.h>

#include "config.h"
#include "cpudetect.h"

#include "mp_msg.h"

#ifdef HAVE_MALLOC_H
#include <uclib.h>
#endif

#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libvo/fastmemcpy.h"
#undef memcpy
#define memcpy uc_memcpy
#define MIN(a,b) ((a) > (b) ? (b) : (a))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define ABS(a) ((a) > 0 ? (a) : (-(a)))

#define MIN3(a,b,c) MIN(MIN(a,b),c)
#define MAX3(a,b,c) MAX(MAX(a,b),c)

//===========================================================================//

struct vf_priv_s {
    int mode;
    int parity;
    int buffered_i;
    int buffered_tff;
    double buffered_pts;
    mp_image_t *buffered_mpi;
    int stride[3];
    uint8_t *ref[4][3];
    int do_deinterlace;
};

static void (*filter_line)(struct vf_priv_s *p, uint8_t *dst, uint8_t *prev, uint8_t *cur, uint8_t *next, int w, int refs, int parity);

static void store_ref(struct vf_priv_s *p, uint8_t *src[3], int src_stride[3], int width, int height){
    int i;

    memcpy (p->ref[3], p->ref[0], sizeof(uint8_t *)*3);
    memmove(p->ref[0], p->ref[1], sizeof(uint8_t *)*3*3);

    for(i=0; i<3; i++){
        int is_chroma= !!i;

        memcpy_pic(p->ref[2][i], src[i], width>>is_chroma, height>>is_chroma, p->stride[i], src_stride[i]);
    }
}

#if defined(HAVE_MMX) && defined(NAMED_ASM_ARGS)

#define LOAD4(mem,dst) \
            "movd      "mem", "#dst" \n\t"\
            "punpcklbw %%mm7, "#dst" \n\t"

#define PABS(tmp,dst) \
            "pxor     "#tmp", "#tmp" \n\t"\
            "psubw    "#dst", "#tmp" \n\t"\
            "pmaxsw   "#tmp", "#dst" \n\t"

#define CHECK(pj,mj) \
            "movq "#pj"(%[cur],%[mrefs]), %%mm2 \n\t" /* cur[x-refs-1+j] */\
            "movq "#mj"(%[cur],%[prefs]), %%mm3 \n\t" /* cur[x+refs-1-j] */\
            "movq      %%mm2, %%mm4 \n\t"\
            "movq      %%mm2, %%mm5 \n\t"\
            "pxor      %%mm3, %%mm4 \n\t"\
            "pavgb     %%mm3, %%mm5 \n\t"\
            "pand     %[pb1], %%mm4 \n\t"\
            "psubusb   %%mm4, %%mm5 \n\t"\
            "psrlq     $8,    %%mm5 \n\t"\
            "punpcklbw %%mm7, %%mm5 \n\t" /* (cur[x-refs+j] + cur[x+refs-j])>>1 */\
            "movq      %%mm2, %%mm4 \n\t"\
            "psubusb   %%mm3, %%mm2 \n\t"\
            "psubusb   %%mm4, %%mm3 \n\t"\
            "pmaxub    %%mm3, %%mm2 \n\t"\
            "movq      %%mm2, %%mm3 \n\t"\
            "movq      %%mm2, %%mm4 \n\t" /* ABS(cur[x-refs-1+j] - cur[x+refs-1-j]) */\
            "psrlq      $8,   %%mm3 \n\t" /* ABS(cur[x-refs  +j] - cur[x+refs  -j]) */\
            "psrlq     $16,   %%mm4 \n\t" /* ABS(cur[x-refs+1+j] - cur[x+refs+1-j]) */\
            "punpcklbw %%mm7, %%mm2 \n\t"\
            "punpcklbw %%mm7, %%mm3 \n\t"\
            "punpcklbw %%mm7, %%mm4 \n\t"\
            "paddw     %%mm3, %%mm2 \n\t"\
            "paddw     %%mm4, %%mm2 \n\t" /* score */

#define CHECK1 \
            "movq      %%mm0, %%mm3 \n\t"\
            "pcmpgtw   %%mm2, %%mm3 \n\t" /* if(score < spatial_score) */\
            "pminsw    %%mm2, %%mm0 \n\t" /* spatial_score= score; */\
            "movq      %%mm3, %%mm6 \n\t"\
            "pand      %%mm3, %%mm5 \n\t"\
            "pandn     %%mm1, %%mm3 \n\t"\
            "por       %%mm5, %%mm3 \n\t"\
            "movq      %%mm3, %%mm1 \n\t" /* spatial_pred= (cur[x-refs+j] + cur[x+refs-j])>>1; */

#define CHECK2 /* pretend not to have checked dir=2 if dir=1 was bad.\
                  hurts both quality and speed, but matches the C version. */\
            "paddw    %[pw1], %%mm6 \n\t"\
            "psllw     $14,   %%mm6 \n\t"\
            "paddsw    %%mm6, %%mm2 \n\t"\
            "movq      %%mm0, %%mm3 \n\t"\
            "pcmpgtw   %%mm2, %%mm3 \n\t"\
            "pminsw    %%mm2, %%mm0 \n\t"\
            "pand      %%mm3, %%mm5 \n\t"\
            "pandn     %%mm1, %%mm3 \n\t"\
            "por       %%mm5, %%mm3 \n\t"\
            "movq      %%mm3, %%mm1 \n\t"

static void filter_line_mmx2(struct vf_priv_s *p, uint8_t *dst, uint8_t *prev, uint8_t *cur, uint8_t *next, int w, int refs, int parity){
    static const uint64_t pw_1 = 0x0001000100010001ULL;
    static const uint64_t pb_1 = 0x0101010101010101ULL;
    const int mode = p->mode;
    uint64_t tmp0, tmp1, tmp2, tmp3;
    int x;

#define FILTER\
    for(x=0; x<w; x+=4){\
        asm volatile(\
            "pxor      %%mm7, %%mm7 \n\t"\
            LOAD4("(%[cur],%[mrefs])", %%mm0) /* c = cur[x-refs] */\
            LOAD4("(%[cur],%[prefs])", %%mm1) /* e = cur[x+refs] */\
            LOAD4("(%["prev2"])", %%mm2) /* prev2[x] */\
            LOAD4("(%["next2"])", %%mm3) /* next2[x] */\
            "movq      %%mm3, %%mm4 \n\t"\
            "paddw     %%mm2, %%mm3 \n\t"\
            "psraw     $1,    %%mm3 \n\t" /* d = (prev2[x] + next2[x])>>1 */\
            "movq      %%mm0, %[tmp0] \n\t" /* c */\
            "movq      %%mm3, %[tmp1] \n\t" /* d */\
            "movq      %%mm1, %[tmp2] \n\t" /* e */\
            "psubw     %%mm4, %%mm2 \n\t"\
            PABS(      %%mm4, %%mm2) /* temporal_diff0 */\
            LOAD4("(%[prev],%[mrefs])", %%mm3) /* prev[x-refs] */\
            LOAD4("(%[prev],%[prefs])", %%mm4) /* prev[x+refs] */\
            "psubw     %%mm0, %%mm3 \n\t"\
            "psubw     %%mm1, %%mm4 \n\t"\
            PABS(      %%mm5, %%mm3)\
            PABS(      %%mm5, %%mm4)\
            "paddw     %%mm4, %%mm3 \n\t" /* temporal_diff1 */\
            "psrlw     $1,    %%mm2 \n\t"\
            "psrlw     $1,    %%mm3 \n\t"\
            "pmaxsw    %%mm3, %%mm2 \n\t"\
            LOAD4("(%[next],%[mrefs])", %%mm3) /* next[x-refs] */\
            LOAD4("(%[next],%[prefs])", %%mm4) /* next[x+refs] */\
            "psubw     %%mm0, %%mm3 \n\t"\
            "psubw     %%mm1, %%mm4 \n\t"\
            PABS(      %%mm5, %%mm3)\
            PABS(      %%mm5, %%mm4)\
            "paddw     %%mm4, %%mm3 \n\t" /* temporal_diff2 */\
            "psrlw     $1,    %%mm3 \n\t"\
            "pmaxsw    %%mm3, %%mm2 \n\t"\
            "movq      %%mm2, %[tmp3] \n\t" /* diff */\
\
            "paddw     %%mm0, %%mm1 \n\t"\
            "paddw     %%mm0, %%mm0 \n\t"\
            "psubw     %%mm1, %%mm0 \n\t"\
            "psrlw     $1,    %%mm1 \n\t" /* spatial_pred */\
            PABS(      %%mm2, %%mm0)      /* ABS(c-e) */\
\
            "movq -1(%[cur],%[mrefs]), %%mm2 \n\t" /* cur[x-refs-1] */\
            "movq -1(%[cur],%[prefs]), %%mm3 \n\t" /* cur[x+refs-1] */\
            "movq      %%mm2, %%mm4 \n\t"\
            "psubusb   %%mm3, %%mm2 \n\t"\
            "psubusb   %%mm4, %%mm3 \n\t"\
            "pmaxub    %%mm3, %%mm2 \n\t"\
            "pshufw $9,%%mm2, %%mm3 \n\t"\
            "punpcklbw %%mm7, %%mm2 \n\t" /* ABS(cur[x-refs-1] - cur[x+refs-1]) */\
            "punpcklbw %%mm7, %%mm3 \n\t" /* ABS(cur[x-refs+1] - cur[x+refs+1]) */\
            "paddw     %%mm2, %%mm0 \n\t"\
            "paddw     %%mm3, %%mm0 \n\t"\
            "psubw    %[pw1], %%mm0 \n\t" /* spatial_score */\
\
            CHECK(-2,0)\
            CHECK1\
            CHECK(-3,1)\
            CHECK2\
            CHECK(0,-2)\
            CHECK1\
            CHECK(1,-3)\
            CHECK2\
\
            /* if(p->mode<2) ... */\
            "movq    %[tmp3], %%mm6 \n\t" /* diff */\
            "cmp       $2, %[mode] \n\t"\
            "jge       1f \n\t"\
            LOAD4("(%["prev2"],%[mrefs],2)", %%mm2) /* prev2[x-2*refs] */\
            LOAD4("(%["next2"],%[mrefs],2)", %%mm4) /* next2[x-2*refs] */\
            LOAD4("(%["prev2"],%[prefs],2)", %%mm3) /* prev2[x+2*refs] */\
            LOAD4("(%["next2"],%[prefs],2)", %%mm5) /* next2[x+2*refs] */\
            "paddw     %%mm4, %%mm2 \n\t"\
            "paddw     %%mm5, %%mm3 \n\t"\
            "psrlw     $1,    %%mm2 \n\t" /* b */\
            "psrlw     $1,    %%mm3 \n\t" /* f */\
            "movq    %[tmp0], %%mm4 \n\t" /* c */\
            "movq    %[tmp1], %%mm5 \n\t" /* d */\
            "movq    %[tmp2], %%mm7 \n\t" /* e */\
            "psubw     %%mm4, %%mm2 \n\t" /* b-c */\
            "psubw     %%mm7, %%mm3 \n\t" /* f-e */\
            "movq      %%mm5, %%mm0 \n\t"\
            "psubw     %%mm4, %%mm5 \n\t" /* d-c */\
            "psubw     %%mm7, %%mm0 \n\t" /* d-e */\
            "movq      %%mm2, %%mm4 \n\t"\
            "pminsw    %%mm3, %%mm2 \n\t"\
            "pmaxsw    %%mm4, %%mm3 \n\t"\
            "pmaxsw    %%mm5, %%mm2 \n\t"\
            "pminsw    %%mm5, %%mm3 \n\t"\
            "pmaxsw    %%mm0, %%mm2 \n\t" /* max */\
            "pminsw    %%mm0, %%mm3 \n\t" /* min */\
            "pxor      %%mm4, %%mm4 \n\t"\
            "pmaxsw    %%mm3, %%mm6 \n\t"\
            "psubw     %%mm2, %%mm4 \n\t" /* -max */\
            "pmaxsw    %%mm4, %%mm6 \n\t" /* diff= MAX3(diff, min, -max); */\
            "1: \n\t"\
\
            "movq    %[tmp1], %%mm2 \n\t" /* d */\
            "movq      %%mm2, %%mm3 \n\t"\
            "psubw     %%mm6, %%mm2 \n\t" /* d-diff */\
            "paddw     %%mm6, %%mm3 \n\t" /* d+diff */\
            "pmaxsw    %%mm2, %%mm1 \n\t"\
            "pminsw    %%mm3, %%mm1 \n\t" /* d = clip(spatial_pred, d-diff, d+diff); */\
            "packuswb  %%mm1, %%mm1 \n\t"\
\
            :[tmp0]"=m"(tmp0),\
             [tmp1]"=m"(tmp1),\
             [tmp2]"=m"(tmp2),\
             [tmp3]"=m"(tmp3)\
            :[prev] "r"(prev),\
             [cur]  "r"(cur),\
             [next] "r"(next),\
             [prefs]"r"((long)refs),\
             [mrefs]"r"((long)-refs),\
             [pw1]  "m"(pw_1),\
             [pb1]  "m"(pb_1),\
             [mode] "g"(mode)\
        );\
        asm volatile("movd %%mm1, %0" :"=m"(*dst));\
        dst += 4;\