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mpv/libmpcodecs/vf_fspp.c

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/*
Copyright (C) 2003 Michael Niedermayer <michaelni@gmx.at>
Copyright (C) 2005 Nikolaj Poroshin <porosh3@psu.ru>
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
*/
/*
* This implementation is based on an algorithm described in
* "Aria Nosratinia Embedded Post-Processing for
* Enhancement of Compressed Images (1999)"
* (http://citeseer.nj.nec.com/nosratinia99embedded.html)
* Futher, with splitting (i)dct into hor/ver passes, one of them can be
* performed once per block, not pixel. This allows for much better speed.
*/
/*
Heavily optimized version of SPP filter by Nikolaj
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <math.h>
#include "config.h"
#include "mp_msg.h"
#include "cpudetect.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/dsputil.h"
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libvo/fastmemcpy.h"
//===========================================================================//
#define BLOCKSZ 12
static const short custom_threshold[64]=
// values (296) can't be too high
// -it causes too big quant dependence
// or maybe overflow(check), which results in some flashing
{ 71, 296, 295, 237, 71, 40, 38, 19,
245, 193, 185, 121, 102, 73, 53, 27,
158, 129, 141, 107, 97, 73, 50, 26,
102, 116, 109, 98, 82, 66, 45, 23,
71, 94, 95, 81, 70, 56, 38, 20,
56, 77, 74, 66, 56, 44, 30, 15,
38, 53, 50, 45, 38, 30, 21, 11,
20, 27, 26, 23, 20, 15, 11, 5
};
static const uint8_t __attribute__((aligned(32))) dither[8][8]={
{ 0, 48, 12, 60, 3, 51, 15, 63, },
{ 32, 16, 44, 28, 35, 19, 47, 31, },
{ 8, 56, 4, 52, 11, 59, 7, 55, },
{ 40, 24, 36, 20, 43, 27, 39, 23, },
{ 2, 50, 14, 62, 1, 49, 13, 61, },
{ 34, 18, 46, 30, 33, 17, 45, 29, },
{ 10, 58, 6, 54, 9, 57, 5, 53, },
{ 42, 26, 38, 22, 41, 25, 37, 21, },
};
struct vf_priv_s { //align 16 !
uint64_t threshold_mtx_noq[8*2];
uint64_t threshold_mtx[8*2];//used in both C & MMX (& later SSE2) versions
int log2_count;
int temp_stride;
int qp;
int mpeg2;
int prev_q;
uint8_t *src;
int16_t *temp;
int bframes;
char *non_b_qp;
};
#ifndef HAVE_MMX
//This func reads from 1 slice, 1 and clears 0 & 1
static void store_slice_c(uint8_t *dst, int16_t *src, int dst_stride, int src_stride, int width, int height, int log2_scale)
{int y, x;
#define STORE(pos) \
temp= (src[x + pos] + (d[pos]>>log2_scale))>>(6-log2_scale); \
src[x + pos]=src[x + pos - 8*src_stride]=0; \
if(temp & 0x100) temp= ~(temp>>31); \
dst[x + pos]= temp;
for(y=0; y<height; y++){
const uint8_t *d= dither[y];
for(x=0; x<width; x+=8){
int temp;
STORE(0);
STORE(1);
STORE(2);
STORE(3);
STORE(4);
STORE(5);
STORE(6);
STORE(7);
}
src+=src_stride;
dst+=dst_stride;
}
}
//This func reads from 2 slices, 0 & 2 and clears 2-nd
static void store_slice2_c(uint8_t *dst, int16_t *src, int dst_stride, int src_stride, int width, int height, int log2_scale)
{int y, x;
#define STORE2(pos) \
temp= (src[x + pos] + src[x + pos + 16*src_stride] + (d[pos]>>log2_scale))>>(6-log2_scale); \
src[x + pos + 16*src_stride]=0; \
if(temp & 0x100) temp= ~(temp>>31); \
dst[x + pos]= temp;
for(y=0; y<height; y++){
const uint8_t *d= dither[y];
for(x=0; x<width; x+=8){
int temp;
STORE2(0);
STORE2(1);
STORE2(2);
STORE2(3);
STORE2(4);
STORE2(5);
STORE2(6);
STORE2(7);
}
src+=src_stride;
dst+=dst_stride;
}
}
static void mul_thrmat_c(struct vf_priv_s *p,int q)
{
int a;
for(a=0;a<64;a++)
((short*)p->threshold_mtx)[a]=q * ((short*)p->threshold_mtx_noq)[a];//ints faster in C
}
static void column_fidct_c(int16_t* thr_adr, DCTELEM *data, DCTELEM *output, int cnt);
static void row_idct_c(DCTELEM* workspace,
int16_t* output_adr, int output_stride, int cnt);
static void row_fdct_c(DCTELEM *data, const uint8_t *pixels, int line_size, int cnt);
//this is rather ugly, but there is no need for function pointers
#define store_slice_s store_slice_c
#define store_slice2_s store_slice2_c
#define mul_thrmat_s mul_thrmat_c
#define column_fidct_s column_fidct_c
#define row_idct_s row_idct_c
#define row_fdct_s row_fdct_c
#else /* HAVE_MMX */
//This func reads from 1 slice, 1 and clears 0 & 1
static void store_slice_mmx(uint8_t *dst, int16_t *src, long dst_stride, long src_stride, long width, long height, long log2_scale)
{
const uint8_t *od=&dither[0][0];
const uint8_t *end=&dither[height][0];
width = (width+7)&~7;
dst_stride-=width;
//src_stride=(src_stride-width)*2;
asm volatile(
"mov %5, %%"REG_d" \n\t"
"mov %6, %%"REG_S" \n\t"
"mov %7, %%"REG_D" \n\t"
"mov %1, %%"REG_a" \n\t"
"movd %%"REG_d", %%mm5 \n\t"
"xor $-1, %%"REG_d" \n\t"
"mov %%"REG_a", %%"REG_c" \n\t"
"add $7, %%"REG_d" \n\t"
"neg %%"REG_a" \n\t"
"sub %0, %%"REG_c" \n\t"
"add %%"REG_c", %%"REG_c" \n\t"
"movd %%"REG_d", %%mm2 \n\t"
"mov %%"REG_c", %1 \n\t"
"mov %2, %%"REG_d" \n\t"
"shl $4, %%"REG_a" \n\t"
"2: \n\t"
"movq (%%"REG_d"), %%mm3 \n\t"
"movq %%mm3, %%mm4 \n\t"
"pxor %%mm7, %%mm7 \n\t"
"punpcklbw %%mm7, %%mm3 \n\t"
"punpckhbw %%mm7, %%mm4 \n\t"
"mov %0, %%"REG_c" \n\t"
"psraw %%mm5, %%mm3 \n\t"
"psraw %%mm5, %%mm4 \n\t"
"1: \n\t"
"movq %%mm7, (%%"REG_S",%%"REG_a",) \n\t"
"movq (%%"REG_S"), %%mm0 \n\t"
"movq 8(%%"REG_S"), %%mm1 \n\t"
"movq %%mm7, 8(%%"REG_S",%%"REG_a",) \n\t"
"paddw %%mm3, %%mm0 \n\t"
"paddw %%mm4, %%mm1 \n\t"
"movq %%mm7, (%%"REG_S") \n\t"
"psraw %%mm2, %%mm0 \n\t"
"psraw %%mm2, %%mm1 \n\t"
"movq %%mm7, 8(%%"REG_S") \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"add $16, %%"REG_S" \n\t"
"movq %%mm0, (%%"REG_D") \n\t"
"add $8, %%"REG_D" \n\t"
"sub $8, %%"REG_c" \n\t"
"jg 1b \n\t"
"add %1, %%"REG_S" \n\t"
"add $8, %%"REG_d" \n\t"
"add %3, %%"REG_D" \n\t"
"cmp %4, %%"REG_d" \n\t"
"jl 2b \n\t"
:
: "m" (width), "m" (src_stride), "g" (od), "m" (dst_stride), "g" (end),
"m" (log2_scale), "m" (src), "m" (dst) //input
: "%"REG_a, "%"REG_c, "%"REG_d, "%"REG_S, "%"REG_D
);
}
//This func reads from 2 slices, 0 & 2 and clears 2-nd
static void store_slice2_mmx(uint8_t *dst, int16_t *src, long dst_stride, long src_stride, long width, long height, long log2_scale)
{
const uint8_t *od=&dither[0][0];
const uint8_t *end=&dither[height][0];
width = (width+7)&~7;
dst_stride-=width;
//src_stride=(src_stride-width)*2;
asm volatile(
"mov %5, %%"REG_d" \n\t"
"mov %6, %%"REG_S" \n\t"
"mov %7, %%"REG_D" \n\t"
"mov %1, %%"REG_a" \n\t"
"movd %%"REG_d", %%mm5 \n\t"
"xor $-1, %%"REG_d" \n\t"
"mov %%"REG_a", %%"REG_c" \n\t"
"add $7, %%"REG_d" \n\t"
"sub %0, %%"REG_c" \n\t"
"add %%"REG_c", %%"REG_c" \n\t"
"movd %%"REG_d", %%mm2 \n\t"
"mov %%"REG_c", %1 \n\t"
"mov %2, %%"REG_d" \n\t"
"shl $5, %%"REG_a" \n\t"
"2: \n\t"
"movq (%%"REG_d"), %%mm3 \n\t"
"movq %%mm3, %%mm4 \n\t"
"pxor %%mm7, %%mm7 \n\t"
"punpcklbw %%mm7, %%mm3 \n\t"
"punpckhbw %%mm7, %%mm4 \n\t"
"mov %0, %%"REG_c" \n\t"
"psraw %%mm5, %%mm3 \n\t"
"psraw %%mm5, %%mm4 \n\t"
"1: \n\t"
"movq (%%"REG_S"), %%mm0 \n\t"
"movq 8(%%"REG_S"), %%mm1 \n\t"
"paddw %%mm3, %%mm0 \n\t"
"paddw (%%"REG_S",%%"REG_a",), %%mm0 \n\t"
"paddw %%mm4, %%mm1 \n\t"
"movq 8(%%"REG_S",%%"REG_a",), %%mm6 \n\t"
"movq %%mm7, (%%"REG_S",%%"REG_a",) \n\t"
"psraw %%mm2, %%mm0 \n\t"
"paddw %%mm6, %%mm1 \n\t"
"movq %%mm7, 8(%%"REG_S",%%"REG_a",) \n\t"
"psraw %%mm2, %%mm1 \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"movq %%mm0, (%%"REG_D") \n\t"
"add $16, %%"REG_S" \n\t"
"add $8, %%"REG_D" \n\t"
"sub $8, %%"REG_c" \n\t"
"jg 1b \n\t"
"add %1, %%"REG_S" \n\t"
"add $8, %%"REG_d" \n\t"
"add %3, %%"REG_D" \n\t"
"cmp %4, %%"REG_d" \n\t"
"jl 2b \n\t"
:
: "m" (width), "m" (src_stride), "g" (od), "m" (dst_stride), "g" (end),
"m" (log2_scale), "m" (src), "m" (dst) //input
: "%"REG_a, "%"REG_c, "%"REG_d, "%"REG_D, "%"REG_S
);
}
static void mul_thrmat_mmx(struct vf_priv_s *p, int q)
{
uint64_t *adr=&p->threshold_mtx_noq[0];
asm volatile(
"movd %0, %%mm7 \n\t"
"add $8*8*2, %%"REG_D" \n\t"
"movq 0*8(%%"REG_S"), %%mm0 \n\t"
"punpcklwd %%mm7, %%mm7 \n\t"
"movq 1*8(%%"REG_S"), %%mm1 \n\t"
"punpckldq %%mm7, %%mm7 \n\t"
"pmullw %%mm7, %%mm0 \n\t"
"movq 2*8(%%"REG_S"), %%mm2 \n\t"
"pmullw %%mm7, %%mm1 \n\t"
"movq 3*8(%%"REG_S"), %%mm3 \n\t"
"pmullw %%mm7, %%mm2 \n\t"
"movq %%mm0, 0*8(%%"REG_D") \n\t"
"movq 4*8(%%"REG_S"), %%mm4 \n\t"
"pmullw %%mm7, %%mm3 \n\t"
"movq %%mm1, 1*8(%%"REG_D") \n\t"
"movq 5*8(%%"REG_S"), %%mm5 \n\t"
"pmullw %%mm7, %%mm4 \n\t"
"movq %%mm2, 2*8(%%"REG_D") \n\t"
"movq 6*8(%%"REG_S"), %%mm6 \n\t"
"pmullw %%mm7, %%mm5 \n\t"
"movq %%mm3, 3*8(%%"REG_D") \n\t"
"movq 7*8+0*8(%%"REG_S"), %%mm0 \n\t"
"pmullw %%mm7, %%mm6 \n\t"
"movq %%mm4, 4*8(%%"REG_D") \n\t"
"movq 7*8+1*8(%%"REG_S"), %%mm1 \n\t"
"pmullw %%mm7, %%mm0 \n\t"
"movq %%mm5, 5*8(%%"REG_D") \n\t"
"movq 7*8+2*8(%%"REG_S"), %%mm2 \n\t"
"pmullw %%mm7, %%mm1 \n\t"
"movq %%mm6, 6*8(%%"REG_D") \n\t"
"movq 7*8+3*8(%%"REG_S"), %%mm3 \n\t"
"pmullw %%mm7, %%mm2 \n\t"
"movq %%mm0, 7*8+0*8(%%"REG_D") \n\t"
"movq 7*8+4*8(%%"REG_S"), %%mm4 \n\t"
"pmullw %%mm7, %%mm3 \n\t"
"movq %%mm1, 7*8+1*8(%%"REG_D") \n\t"
"movq 7*8+5*8(%%"REG_S"), %%mm5 \n\t"
"pmullw %%mm7, %%mm4 \n\t"
"movq %%mm2, 7*8+2*8(%%"REG_D") \n\t"
"movq 7*8+6*8(%%"REG_S"), %%mm6 \n\t"
"pmullw %%mm7, %%mm5 \n\t"
"movq %%mm3, 7*8+3*8(%%"REG_D") \n\t"
"movq 14*8+0*8(%%"REG_S"), %%mm0 \n\t"
"pmullw %%mm7, %%mm6 \n\t"
"movq %%mm4, 7*8+4*8(%%"REG_D") \n\t"
"movq 14*8+1*8(%%"REG_S"), %%mm1 \n\t"
"pmullw %%mm7, %%mm0 \n\t"
"movq %%mm5, 7*8+5*8(%%"REG_D") \n\t"
"pmullw %%mm7, %%mm1 \n\t"
"movq %%mm6, 7*8+6*8(%%"REG_D") \n\t"
"movq %%mm0, 14*8+0*8(%%"REG_D") \n\t"
"movq %%mm1, 14*8+1*8(%%"REG_D") \n\t"
: "+g" (q), "+S" (adr), "+D" (adr)
:
);
}
static void column_fidct_mmx(int16_t* thr_adr, DCTELEM *data, DCTELEM *output, int cnt);
static void row_idct_mmx(DCTELEM* workspace,
int16_t* output_adr, int output_stride, int cnt);
static void row_fdct_mmx(DCTELEM *data, const uint8_t *pixels, int line_size, int cnt);
#define store_slice_s store_slice_mmx
#define store_slice2_s store_slice2_mmx
#define mul_thrmat_s mul_thrmat_mmx
#define column_fidct_s column_fidct_mmx
#define row_idct_s row_idct_mmx
#define row_fdct_s row_fdct_mmx
#endif // HAVE_MMX
static void filter(struct vf_priv_s *p, uint8_t *dst, uint8_t *src,
int dst_stride, int src_stride,
int width, int height,
uint8_t *qp_store, int qp_stride, int is_luma)
{
int x, x0, y, es, qy, t;
const int stride= is_luma ? p->temp_stride : (width+16);//((width+16+15)&(~15))
const int step=6-p->log2_count;
const int qps= 3 + is_luma;
int32_t __attribute__((aligned(32))) block_align[4*8*BLOCKSZ+ 4*8*BLOCKSZ];
DCTELEM *block= (DCTELEM *)block_align;
DCTELEM *block3=(DCTELEM *)(block_align+4*8*BLOCKSZ);
memset(block3, 0, 4*8*BLOCKSZ);
//p->src=src-src_stride*8-8;//!
if (!src || !dst) return; // HACK avoid crash for Y8 colourspace
for(y=0; y<height; y++){
int index= 8 + 8*stride + y*stride;
fast_memcpy(p->src + index, src + y*src_stride, width);//this line can be avoided by using DR & user fr.buffers
for(x=0; x<8; x++){
p->src[index - x - 1]= p->src[index + x ];
p->src[index + width + x ]= p->src[index + width - x - 1];
}
}
for(y=0; y<8; y++){
fast_memcpy(p->src + ( 7-y)*stride, p->src + ( y+8)*stride, stride);
fast_memcpy(p->src + (height+8+y)*stride, p->src + (height-y+7)*stride, stride);
}
//FIXME (try edge emu)
for(y=8; y<24; y++)
memset(p->temp+ 8 +y*stride, 0,width*sizeof(int16_t));
for(y=step; y<height+8; y+=step){ //step= 1,2
qy=y-4;
if (qy>height-1) qy=height-1;
if (qy<0) qy=0;
qy=(qy>>qps)*qp_stride;
row_fdct_s(block, p->src + y*stride +2-(y&1), stride, 2);
for(x0=0; x0<width+8-8*(BLOCKSZ-1); x0+=8*(BLOCKSZ-1)){
row_fdct_s(block+8*8, p->src + y*stride+8+x0 +2-(y&1), stride, 2*(BLOCKSZ-1));
if(p->qp)
column_fidct_s((int16_t*)(&p->threshold_mtx[0]), block+0*8, block3+0*8, 8*(BLOCKSZ-1)); //yes, this is a HOTSPOT
else
for (x=0; x<8*(BLOCKSZ-1); x+=8) {
t=x+x0-2; //correct t=x+x0-2-(y&1), but its the same
if (t<0) t=0;//t always < width-2
t=qp_store[qy+(t>>qps)];
if(p->mpeg2) t>>=1; //copy p->mpeg2,prev_q to locals?
if (t!=p->prev_q) p->prev_q=t, mul_thrmat_s(p, t);
column_fidct_s((int16_t*)(&p->threshold_mtx[0]), block+x*8, block3+x*8, 8); //yes, this is a HOTSPOT
}
row_idct_s(block3+0*8, p->temp + (y&15)*stride+x0+2-(y&1), stride, 2*(BLOCKSZ-1));
memmove(block, block+(BLOCKSZ-1)*64, 8*8*sizeof(DCTELEM)); //cycling
memmove(block3, block3+(BLOCKSZ-1)*64, 6*8*sizeof(DCTELEM));
}
//
es=width+8-x0; // 8, ...
if (es>8)
row_fdct_s(block+8*8, p->src + y*stride+8+x0 +2-(y&1), stride, (es-4)>>2);
column_fidct_s((int16_t*)(&p->threshold_mtx[0]), block, block3, es&(~1));
row_idct_s(block3+0*8, p->temp + (y&15)*stride+x0+2-(y&1), stride, es>>2);
{const int y1=y-8+step;//l5-7 l4-6
if (!(y1&7) && y1) {
if (y1&8) store_slice_s(dst + (y1-8)*dst_stride, p->temp+ 8 +8*stride,
dst_stride, stride, width, 8, 5-p->log2_count);
else store_slice2_s(dst + (y1-8)*dst_stride, p->temp+ 8 +0*stride,
dst_stride, stride, width, 8, 5-p->log2_count);
} }
}
if (y&7) { // == height & 7
if (y&8) store_slice_s(dst + ((y-8)&~7)*dst_stride, p->temp+ 8 +8*stride,
dst_stride, stride, width, y&7, 5-p->log2_count);
else store_slice2_s(dst + ((y-8)&~7)*dst_stride, p->temp+ 8 +0*stride,
dst_stride, stride, width, y&7, 5-p->log2_count);
}
}
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt)
{
int h= (height+16+15)&(~15);
vf->priv->temp_stride= (width+16+15)&(~15);
vf->priv->temp= (int16_t*)av_mallocz(vf->priv->temp_stride*3*8*sizeof(int16_t));
//this can also be avoided, see above
vf->priv->src = (uint8_t*)av_malloc(vf->priv->temp_stride*h*sizeof(uint8_t));
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
}
static void get_image(struct vf_instance_s* vf, mp_image_t *mpi)
{
if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change
// ok, we can do pp in-place (or pp disabled):
vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
mpi->type, mpi->flags, mpi->width, mpi->height);
mpi->planes[0]=vf->dmpi->planes[0];
mpi->stride[0]=vf->dmpi->stride[0];
mpi->width=vf->dmpi->width;
if(mpi->flags&MP_IMGFLAG_PLANAR){
mpi->planes[1]=vf->dmpi->planes[1];
mpi->planes[2]=vf->dmpi->planes[2];
mpi->stride[1]=vf->dmpi->stride[1];
mpi->stride[2]=vf->dmpi->stride[2];
}
mpi->flags|=MP_IMGFLAG_DIRECT;
}
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts)
{
mp_image_t *dmpi;
if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
// no DR, so get a new image! hope we'll get DR buffer:
dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP,
MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
mpi->width,mpi->height);
vf_clone_mpi_attributes(dmpi, mpi);
}else{
dmpi=vf->dmpi;
}
vf->priv->mpeg2= mpi->qscale_type;
if(mpi->pict_type != 3 && mpi->qscale && !vf->priv->qp){
if(!vf->priv->non_b_qp)
vf->priv->non_b_qp= malloc(mpi->qstride * ((mpi->h + 15) >> 4));
fast_memcpy(vf->priv->non_b_qp, mpi->qscale, mpi->qstride * ((mpi->h + 15) >> 4));
}
if(vf->priv->log2_count || !(mpi->flags&MP_IMGFLAG_DIRECT)){
char *qp_tab= vf->priv->non_b_qp;
if(vf->priv->bframes || !qp_tab)
qp_tab= mpi->qscale;
if(qp_tab || vf->priv->qp){
filter(vf->priv, dmpi->planes[0], mpi->planes[0], dmpi->stride[0], mpi->stride[0],
mpi->w, mpi->h, qp_tab, mpi->qstride, 1);
filter(vf->priv, dmpi->planes[1], mpi->planes[1], dmpi->stride[1], mpi->stride[1],
mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, qp_tab, mpi->qstride, 0);
filter(vf->priv, dmpi->planes[2], mpi->planes[2], dmpi->stride[2], mpi->stride[2],
mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, qp_tab, mpi->qstride, 0);
}else{
memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h, dmpi->stride[0], mpi->stride[0]);
memcpy_pic(dmpi->planes[1], mpi->planes[1], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, dmpi->stride[1], mpi->stride[1]);
memcpy_pic(dmpi->planes[2], mpi->planes[2], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, dmpi->stride[2], mpi->stride[2]);
}
}
#ifdef HAVE_MMX
if(gCpuCaps.hasMMX) asm volatile ("emms\n\t");
#endif
#ifdef HAVE_MMX2
if(gCpuCaps.hasMMX2) asm volatile ("sfence\n\t");
#endif
return vf_next_put_image(vf,dmpi, pts);
}
static void uninit(struct vf_instance_s* vf)
{
if(!vf->priv) return;
if(vf->priv->temp) av_free(vf->priv->temp);
vf->priv->temp= NULL;
if(vf->priv->src) av_free(vf->priv->src);
vf->priv->src= NULL;
//if(vf->priv->avctx) free(vf->priv->avctx);
//vf->priv->avctx= NULL;
if(vf->priv->non_b_qp) free(vf->priv->non_b_qp);
vf->priv->non_b_qp= NULL;
av_free(vf->priv);
vf->priv=NULL;
}
//===========================================================================//
static int query_format(struct vf_instance_s* vf, unsigned int fmt)
{
switch(fmt){
case IMGFMT_YVU9:
case IMGFMT_IF09:
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_CLPL:
case IMGFMT_Y800:
case IMGFMT_Y8:
case IMGFMT_444P:
case IMGFMT_422P:
case IMGFMT_411P:
return vf_next_query_format(vf,fmt);
}
return 0;
}
static int control(struct vf_instance_s* vf, int request, void* data)
{
switch(request){
case VFCTRL_QUERY_MAX_PP_LEVEL:
return 5;
case VFCTRL_SET_PP_LEVEL:
vf->priv->log2_count= *((unsigned int*)data);
if (vf->priv->log2_count < 4) vf->priv->log2_count=4;
return CONTROL_TRUE;
}
return vf_next_control(vf,request,data);
}
static int open(vf_instance_t *vf, char* args)
{
int i=0, bias;
int custom_threshold_m[64];
int log2c=-1;
vf->config=config;
vf->put_image=put_image;
vf->get_image=get_image;
vf->query_format=query_format;
vf->uninit=uninit;
vf->control= control;
vf->priv=av_mallocz(sizeof(struct vf_priv_s));//assumes align 16 !
avcodec_init();
//vf->priv->avctx= avcodec_alloc_context();
//dsputil_init(&vf->priv->dsp, vf->priv->avctx);
vf->priv->log2_count= 4;
vf->priv->bframes = 0;
if (args) sscanf(args, "%d:%d:%d:%d", &log2c, &vf->priv->qp, &i, &vf->priv->bframes);
if( log2c >=4 && log2c <=5 )
vf->priv->log2_count = log2c;
else if( log2c >= 6 )
vf->priv->log2_count = 5;
if(vf->priv->qp < 0)
vf->priv->qp = 0;
if (i < -15) i = -15;
if (i > 32) i = 32;
bias= (1<<4)+i; //regulable
vf->priv->prev_q=0;
//
for(i=0;i<64;i++) //FIXME: tune custom_threshold[] and remove this !
custom_threshold_m[i]=(int)(custom_threshold[i]*(bias/71.)+ 0.5);
for(i=0;i<8;i++){
vf->priv->threshold_mtx_noq[2*i]=(uint64_t)custom_threshold_m[i*8+2]
|(((uint64_t)custom_threshold_m[i*8+6])<<16)
|(((uint64_t)custom_threshold_m[i*8+0])<<32)
|(((uint64_t)custom_threshold_m[i*8+4])<<48);
vf->priv->threshold_mtx_noq[2*i+1]=(uint64_t)custom_threshold_m[i*8+5]
|(((uint64_t)custom_threshold_m[i*8+3])<<16)
|(((uint64_t)custom_threshold_m[i*8+1])<<32)
|(((uint64_t)custom_threshold_m[i*8+7])<<48);
}
if (vf->priv->qp) vf->priv->prev_q=vf->priv->qp, mul_thrmat_s(vf->priv, vf->priv->qp);
return 1;
}
const vf_info_t vf_info_fspp = {
"fast simple postprocess",
"fspp",
"Michael Niedermayer, Nikolaj Poroshin",
"",
open,
NULL
};
//====================================================================
//Specific spp's dct, idct and threshold functions
//I'd prefer to have them in the separate file.
#include "mangle.h"
//#define MANGLE(a) #a
//typedef int16_t DCTELEM; //! only int16_t
#define DCTSIZE 8
#define DCTSIZE_S "8"
#define FIX(x,s) ((int) ((x) * (1<<s) + 0.5)&0xffff)
#define C64(x) ((uint64_t)((x)|(x)<<16))<<32 | (uint64_t)(x) | (uint64_t)(x)<<16
#define FIX64(x,s) C64(FIX(x,s))
#define MULTIPLY16H(x,k) (((x)*(k))>>16)
#define THRESHOLD(r,x,t) if(((unsigned)((x)+t))>t*2) r=(x);else r=0;
#define DESCALE(x,n) (((x) + (1 << ((n)-1))) >> n)
#ifdef HAVE_MMX
DECLARE_ASM_CONST(8, uint64_t, MM_FIX_0_382683433)=FIX64(0.382683433, 14);
DECLARE_ASM_CONST(8, uint64_t, MM_FIX_0_541196100)=FIX64(0.541196100, 14);
DECLARE_ASM_CONST(8, uint64_t, MM_FIX_0_707106781)=FIX64(0.707106781, 14);
DECLARE_ASM_CONST(8, uint64_t, MM_FIX_1_306562965)=FIX64(1.306562965, 14);
DECLARE_ASM_CONST(8, uint64_t, MM_FIX_1_414213562_A)=FIX64(1.414213562, 14);
DECLARE_ASM_CONST(8, uint64_t, MM_FIX_1_847759065)=FIX64(1.847759065, 13);
DECLARE_ASM_CONST(8, uint64_t, MM_FIX_2_613125930)=FIX64(-2.613125930, 13); //-
DECLARE_ASM_CONST(8, uint64_t, MM_FIX_1_414213562)=FIX64(1.414213562, 13);
DECLARE_ASM_CONST(8, uint64_t, MM_FIX_1_082392200)=FIX64(1.082392200, 13);
//for t3,t5,t7 == 0 shortcut
DECLARE_ASM_CONST(8, uint64_t, MM_FIX_0_847759065)=FIX64(0.847759065, 14);
DECLARE_ASM_CONST(8, uint64_t, MM_FIX_0_566454497)=FIX64(0.566454497, 14);
DECLARE_ASM_CONST(8, uint64_t, MM_FIX_0_198912367)=FIX64(0.198912367, 14);
DECLARE_ASM_CONST(8, uint64_t, MM_DESCALE_RND)=C64(4);
DECLARE_ASM_CONST(8, uint64_t, MM_2)=C64(2);
#else /* !HAVE_MMX */
typedef int32_t int_simd16_t;
static const int16_t FIX_0_382683433=FIX(0.382683433, 14);
static const int16_t FIX_0_541196100=FIX(0.541196100, 14);
static const int16_t FIX_0_707106781=FIX(0.707106781, 14);
static const int16_t FIX_1_306562965=FIX(1.306562965, 14);
static const int16_t FIX_1_414213562_A=FIX(1.414213562, 14);
static const int16_t FIX_1_847759065=FIX(1.847759065, 13);
static const int16_t FIX_2_613125930=FIX(-2.613125930, 13); //-
static const int16_t FIX_1_414213562=FIX(1.414213562, 13);
static const int16_t FIX_1_082392200=FIX(1.082392200, 13);
#endif
#ifndef HAVE_MMX
static void column_fidct_c(int16_t* thr_adr, DCTELEM *data, DCTELEM *output, int cnt)
{
int_simd16_t tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
int_simd16_t tmp10, tmp11, tmp12, tmp13;
int_simd16_t z1,z2,z3,z4,z5, z10, z11, z12, z13;
int_simd16_t d0, d1, d2, d3, d4, d5, d6, d7;
DCTELEM* dataptr;
DCTELEM* wsptr;
int16_t *threshold;
int ctr;
dataptr = data;
wsptr = output;
for (; cnt > 0; cnt-=2) { //start positions
threshold=(int16_t*)thr_adr;//threshold_mtx
for (ctr = DCTSIZE; ctr > 0; ctr--) {
// Process columns from input, add to output.
tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7];
tmp7 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7];
tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6];
tmp6 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6];
tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5];
tmp5 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5];
tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4];
tmp4 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4];
// Even part of FDCT
tmp10 = tmp0 + tmp3;
tmp13 = tmp0 - tmp3;
tmp11 = tmp1 + tmp2;
tmp12 = tmp1 - tmp2;
d0 = tmp10 + tmp11;
d4 = tmp10 - tmp11;
z1 = MULTIPLY16H((tmp12 + tmp13) <<2, FIX_0_707106781);
d2 = tmp13 + z1;
d6 = tmp13 - z1;
// Even part of IDCT
THRESHOLD(tmp0, d0, threshold[0*8]);
THRESHOLD(tmp1, d2, threshold[2*8]);
THRESHOLD(tmp2, d4, threshold[4*8]);
THRESHOLD(tmp3, d6, threshold[6*8]);
tmp0+=2;
tmp10 = (tmp0 + tmp2)>>2;
tmp11 = (tmp0 - tmp2)>>2;
tmp13 = (tmp1 + tmp3)>>2; //+2 ! (psnr decides)
tmp12 = MULTIPLY16H((tmp1 - tmp3), FIX_1_414213562_A) - tmp13; //<<2
tmp0 = tmp10 + tmp13; //->temps
tmp3 = tmp10 - tmp13; //->temps
tmp1 = tmp11 + tmp12; //->temps
tmp2 = tmp11 - tmp12; //->temps
// Odd part of FDCT
tmp10 = tmp4 + tmp5;
tmp11 = tmp5 + tmp6;
tmp12 = tmp6 + tmp7;
z5 = MULTIPLY16H((tmp10 - tmp12)<<2, FIX_0_382683433);
z2 = MULTIPLY16H(tmp10 <<2, FIX_0_541196100) + z5;
z4 = MULTIPLY16H(tmp12 <<2, FIX_1_306562965) + z5;
z3 = MULTIPLY16H(tmp11 <<2, FIX_0_707106781);
z11 = tmp7 + z3;
z13 = tmp7 - z3;
d5 = z13 + z2;
d3 = z13 - z2;
d1 = z11 + z4;
d7 = z11 - z4;
// Odd part of IDCT
THRESHOLD(tmp4, d1, threshold[1*8]);
THRESHOLD(tmp5, d3, threshold[3*8]);
THRESHOLD(tmp6, d5, threshold[5*8]);
THRESHOLD(tmp7, d7, threshold[7*8]);
//Simd version uses here a shortcut for the tmp5,tmp6,tmp7 == 0
z13 = tmp6 + tmp5;
z10 = (tmp6 - tmp5)<<1;
z11 = tmp4 + tmp7;
z12 = (tmp4 - tmp7)<<1;
tmp7 = (z11 + z13)>>2; //+2 !
tmp11 = MULTIPLY16H((z11 - z13)<<1, FIX_1_414213562);
z5 = MULTIPLY16H(z10 + z12, FIX_1_847759065);
tmp10 = MULTIPLY16H(z12, FIX_1_082392200) - z5;
tmp12 = MULTIPLY16H(z10, FIX_2_613125930) + z5; // - !!
tmp6 = tmp12 - tmp7;
tmp5 = tmp11 - tmp6;
tmp4 = tmp10 + tmp5;
wsptr[DCTSIZE*0]+= (tmp0 + tmp7);
wsptr[DCTSIZE*1]+= (tmp1 + tmp6);
wsptr[DCTSIZE*2]+= (tmp2 + tmp5);
wsptr[DCTSIZE*3]+= (tmp3 - tmp4);
wsptr[DCTSIZE*4]+= (tmp3 + tmp4);
wsptr[DCTSIZE*5]+= (tmp2 - tmp5);
wsptr[DCTSIZE*6]= (tmp1 - tmp6);
wsptr[DCTSIZE*7]= (tmp0 - tmp7);
//
dataptr++; //next column
wsptr++;
threshold++;
}
dataptr+=8; //skip each second start pos
wsptr +=8;
}
}
#else /* HAVE_MMX */
static void column_fidct_mmx(int16_t* thr_adr, DCTELEM *data, DCTELEM *output, int cnt)
{
uint64_t __attribute__((aligned(8))) temps[4];
asm volatile(
ASMALIGN(4)
"1: \n\t"
"movq "DCTSIZE_S"*0*2(%%"REG_S"), %%mm1 \n\t"
//
"movq "DCTSIZE_S"*3*2(%%"REG_S"), %%mm7 \n\t"
"movq %%mm1, %%mm0 \n\t"
"paddw "DCTSIZE_S"*7*2(%%"REG_S"), %%mm1 \n\t" //t0
"movq %%mm7, %%mm3 \n\t"
"paddw "DCTSIZE_S"*4*2(%%"REG_S"), %%mm7 \n\t" //t3
"movq %%mm1, %%mm5 \n\t"
"movq "DCTSIZE_S"*1*2(%%"REG_S"), %%mm6 \n\t"
"psubw %%mm7, %%mm1 \n\t" //t13
"movq "DCTSIZE_S"*2*2(%%"REG_S"), %%mm2 \n\t"
"movq %%mm6, %%mm4 \n\t"
"paddw "DCTSIZE_S"*6*2(%%"REG_S"), %%mm6 \n\t" //t1
"paddw %%mm7, %%mm5 \n\t" //t10
"paddw "DCTSIZE_S"*5*2(%%"REG_S"), %%mm2 \n\t" //t2
"movq %%mm6, %%mm7 \n\t"
"paddw %%mm2, %%mm6 \n\t" //t11
"psubw %%mm2, %%mm7 \n\t" //t12
"movq %%mm5, %%mm2 \n\t"
"paddw %%mm6, %%mm5 \n\t" //d0
// i0 t13 t12 i3 i1 d0 - d4
"psubw %%mm6, %%mm2 \n\t" //d4
"paddw %%mm1, %%mm7 \n\t"
"movq 4*16(%%"REG_d"), %%mm6 \n\t"
"psllw $2, %%mm7 \n\t"
"psubw 0*16(%%"REG_d"), %%mm5 \n\t"
"psubw %%mm6, %%mm2 \n\t"
"paddusw 0*16(%%"REG_d"), %%mm5 \n\t"
"paddusw %%mm6, %%mm2 \n\t"
"pmulhw "MANGLE(MM_FIX_0_707106781)", %%mm7 \n\t"
//
"paddw 0*16(%%"REG_d"), %%mm5 \n\t"
"paddw %%mm6, %%mm2 \n\t"
"psubusw 0*16(%%"REG_d"), %%mm5 \n\t"
"psubusw %%mm6, %%mm2 \n\t"
//This func is totally compute-bound, operates at huge speed. So, DC shortcut
// at this place isn't worthwhile due to BTB miss penalty (checked on Pent. 3).
//However, typical numbers: nondc - 29%%, dc - 46%%, zero - 25%%. All <> 0 case is very rare.
"paddw "MANGLE(MM_2)", %%mm5 \n\t"
"movq %%mm2, %%mm6 \n\t"
"paddw %%mm5, %%mm2 \n\t"
"psubw %%mm6, %%mm5 \n\t"
"movq %%mm1, %%mm6 \n\t"
"paddw %%mm7, %%mm1 \n\t" //d2
"psubw 2*16(%%"REG_d"), %%mm1 \n\t"
"psubw %%mm7, %%mm6 \n\t" //d6
"movq 6*16(%%"REG_d"), %%mm7 \n\t"
"psraw $2, %%mm5 \n\t"
"paddusw 2*16(%%"REG_d"), %%mm1 \n\t"
"psubw %%mm7, %%mm6 \n\t"
// t7 d2 /t11 t4 t6 - d6 /t10
"paddw 2*16(%%"REG_d"), %%mm1 \n\t"
"paddusw %%mm7, %%mm6 \n\t"
"psubusw 2*16(%%"REG_d"), %%mm1 \n\t"
"paddw %%mm7, %%mm6 \n\t"
"psubw "DCTSIZE_S"*4*2(%%"REG_S"), %%mm3 \n\t"
"psubusw %%mm7, %%mm6 \n\t"
//movq [edi+"DCTSIZE_S"*2*2], mm1
//movq [edi+"DCTSIZE_S"*6*2], mm6
"movq %%mm1, %%mm7 \n\t"
"psraw $2, %%mm2 \n\t"
"psubw "DCTSIZE_S"*6*2(%%"REG_S"), %%mm4 \n\t"
"psubw %%mm6, %%mm1 \n\t"
"psubw "DCTSIZE_S"*7*2(%%"REG_S"), %%mm0 \n\t"
"paddw %%mm7, %%mm6 \n\t" //'t13
"psraw $2, %%mm6 \n\t" //paddw mm6, MM_2 !! ---
"movq %%mm2, %%mm7 \n\t"
"pmulhw "MANGLE(MM_FIX_1_414213562_A)", %%mm1 \n\t"
"paddw %%mm6, %%mm2 \n\t" //'t0
"movq %%mm2, 0*8+%3 \n\t" //!
"psubw %%mm6, %%mm7 \n\t" //'t3
"movq "DCTSIZE_S"*2*2(%%"REG_S"), %%mm2 \n\t"
"psubw %%mm6, %%mm1 \n\t" //'t12
"psubw "DCTSIZE_S"*5*2(%%"REG_S"), %%mm2 \n\t" //t5
"movq %%mm5, %%mm6 \n\t"
"movq %%mm7, 3*8+%3 \n\t"
"paddw %%mm2, %%mm3 \n\t" //t10
"paddw %%mm4, %%mm2 \n\t" //t11
"paddw %%mm0, %%mm4 \n\t" //t12
"movq %%mm3, %%mm7 \n\t"
"psubw %%mm4, %%mm3 \n\t"
"psllw $2, %%mm3 \n\t"
"psllw $2, %%mm7 \n\t" //opt for P6
"pmulhw "MANGLE(MM_FIX_0_382683433)", %%mm3 \n\t"
"psllw $2, %%mm4 \n\t"
"pmulhw "MANGLE(MM_FIX_0_541196100)", %%mm7 \n\t"
"psllw $2, %%mm2 \n\t"
"pmulhw "MANGLE(MM_FIX_1_306562965)", %%mm4 \n\t"
"paddw %%mm1, %%mm5 \n\t" //'t1
"pmulhw "MANGLE(MM_FIX_0_707106781)", %%mm2 \n\t"
"psubw %%mm1, %%mm6 \n\t" //'t2
// t7 't12 't11 t4 t6 - 't13 't10 ---
"paddw %%mm3, %%mm7 \n\t" //z2
"movq %%mm5, 1*8+%3 \n\t"
"paddw %%mm3, %%mm4 \n\t" //z4
"movq 3*16(%%"REG_d"), %%mm3 \n\t"
"movq %%mm0, %%mm1 \n\t"
"movq %%mm6, 2*8+%3 \n\t"
"psubw %%mm2, %%mm1 \n\t" //z13
//===
"paddw %%mm2, %%mm0 \n\t" //z11
"movq %%mm1, %%mm5 \n\t"
"movq 5*16(%%"REG_d"), %%mm2 \n\t"
"psubw %%mm7, %%mm1 \n\t" //d3
"paddw %%mm7, %%mm5 \n\t" //d5
"psubw %%mm3, %%mm1 \n\t"
"movq 1*16(%%"REG_d"), %%mm7 \n\t"
"psubw %%mm2, %%mm5 \n\t"
"movq %%mm0, %%mm6 \n\t"
"paddw %%mm4, %%mm0 \n\t" //d1
"paddusw %%mm3, %%mm1 \n\t"
"psubw %%mm4, %%mm6 \n\t" //d7
// d1 d3 - - - d5 d7 -
"movq 7*16(%%"REG_d"), %%mm4 \n\t"
"psubw %%mm7, %%mm0 \n\t"
"psubw %%mm4, %%mm6 \n\t"
"paddusw %%mm2, %%mm5 \n\t"
"paddusw %%mm4, %%mm6 \n\t"
"paddw %%mm3, %%mm1 \n\t"
"paddw %%mm2, %%mm5 \n\t"
"paddw %%mm4, %%mm6 \n\t"
"psubusw %%mm3, %%mm1 \n\t"
"psubusw %%mm2, %%mm5 \n\t"
"psubusw %%mm4, %%mm6 \n\t"
"movq %%mm1, %%mm4 \n\t"
"por %%mm5, %%mm4 \n\t"
"paddusw %%mm7, %%mm0 \n\t"
"por %%mm6, %%mm4 \n\t"
"paddw %%mm7, %%mm0 \n\t"
"packssdw %%mm4, %%mm4 \n\t"
"psubusw %%mm7, %%mm0 \n\t"
"movd %%mm4, %%"REG_a" \n\t"
"or %%"REG_a", %%"REG_a" \n\t"
"jnz 2f \n\t"
//movq [edi+"DCTSIZE_S"*3*2], mm1
//movq [edi+"DCTSIZE_S"*5*2], mm5
//movq [edi+"DCTSIZE_S"*1*2], mm0
//movq [edi+"DCTSIZE_S"*7*2], mm6
// t4 t5 - - - t6 t7 -
//--- t4 (mm0) may be <>0; mm1, mm5, mm6 == 0
//Typical numbers: nondc - 19%%, dc - 26%%, zero - 55%%. zero case alone isn't worthwhile
"movq 0*8+%3, %%mm4 \n\t"
"movq %%mm0, %%mm1 \n\t"
"pmulhw "MANGLE(MM_FIX_0_847759065)", %%mm0 \n\t" //tmp6
"movq %%mm1, %%mm2 \n\t"
"movq "DCTSIZE_S"*0*2(%%"REG_D"), %%mm5 \n\t"
"movq %%mm2, %%mm3 \n\t"
"pmulhw "MANGLE(MM_FIX_0_566454497)", %%mm1 \n\t" //tmp5
"paddw %%mm4, %%mm5 \n\t"
"movq 1*8+%3, %%mm6 \n\t"
//paddw mm3, MM_2
"psraw $2, %%mm3 \n\t" //tmp7
"pmulhw "MANGLE(MM_FIX_0_198912367)", %%mm2 \n\t" //-tmp4
"psubw %%mm3, %%mm4 \n\t"
"movq "DCTSIZE_S"*1*2(%%"REG_D"), %%mm7 \n\t"
"paddw %%mm3, %%mm5 \n\t"
"movq %%mm4, "DCTSIZE_S"*7*2(%%"REG_D") \n\t"
"paddw %%mm6, %%mm7 \n\t"
"movq 2*8+%3, %%mm3 \n\t"
"psubw %%mm0, %%mm6 \n\t"
"movq "DCTSIZE_S"*2*2(%%"REG_D"), %%mm4 \n\t"
"paddw %%mm0, %%mm7 \n\t"
"movq %%mm5, "DCTSIZE_S"*0*2(%%"REG_D") \n\t"
"paddw %%mm3, %%mm4 \n\t"
"movq %%mm6, "DCTSIZE_S"*6*2(%%"REG_D") \n\t"
"psubw %%mm1, %%mm3 \n\t"
"movq "DCTSIZE_S"*5*2(%%"REG_D"), %%mm5 \n\t"
"paddw %%mm1, %%mm4 \n\t"
"movq "DCTSIZE_S"*3*2(%%"REG_D"), %%mm6 \n\t"
"paddw %%mm3, %%mm5 \n\t"
"movq 3*8+%3, %%mm0 \n\t"
"add $8, %%"REG_S" \n\t"
"movq %%mm7, "DCTSIZE_S"*1*2(%%"REG_D") \n\t"
"paddw %%mm0, %%mm6 \n\t"
"movq %%mm4, "DCTSIZE_S"*2*2(%%"REG_D") \n\t"
"psubw %%mm2, %%mm0 \n\t"
"movq "DCTSIZE_S"*4*2(%%"REG_D"), %%mm7 \n\t"
"paddw %%mm2, %%mm6 \n\t"
"movq %%mm5, "DCTSIZE_S"*5*2(%%"REG_D") \n\t"
"paddw %%mm0, %%mm7 \n\t"
"movq %%mm6, "DCTSIZE_S"*3*2(%%"REG_D") \n\t"
"movq %%mm7, "DCTSIZE_S"*4*2(%%"REG_D") \n\t"
"add $8, %%"REG_D" \n\t"
"jmp 4f \n\t"
"2: \n\t"
//--- non DC2
//psraw mm1, 2 w/o it -> offset. thr1, thr1, thr1 (actually thr1, thr1, thr1-1)
//psraw mm5, 2
//psraw mm0, 2
//psraw mm6, 2
"movq %%mm5, %%mm3 \n\t"
"psubw %%mm1, %%mm5 \n\t"
"psllw $1, %%mm5 \n\t" //'z10
"paddw %%mm1, %%mm3 \n\t" //'z13
"movq %%mm0, %%mm2 \n\t"
"psubw %%mm6, %%mm0 \n\t"
"movq %%mm5, %%mm1 \n\t"
"psllw $1, %%mm0 \n\t" //'z12
"pmulhw "MANGLE(MM_FIX_2_613125930)", %%mm1 \n\t" //-
"paddw %%mm0, %%mm5 \n\t"
"pmulhw "MANGLE(MM_FIX_1_847759065)", %%mm5 \n\t" //'z5
"paddw %%mm6, %%mm2 \n\t" //'z11
"pmulhw "MANGLE(MM_FIX_1_082392200)", %%mm0 \n\t"
"movq %%mm2, %%mm7 \n\t"
//---
"movq 0*8+%3, %%mm4 \n\t"
"psubw %%mm3, %%mm2 \n\t"
"psllw $1, %%mm2 \n\t"
"paddw %%mm3, %%mm7 \n\t" //'t7
"pmulhw "MANGLE(MM_FIX_1_414213562)", %%mm2 \n\t" //'t11
"movq %%mm4, %%mm6 \n\t"
//paddw mm7, MM_2
"psraw $2, %%mm7 \n\t"
"paddw "DCTSIZE_S"*0*2(%%"REG_D"), %%mm4 \n\t"
"psubw %%mm7, %%mm6 \n\t"
"movq 1*8+%3, %%mm3 \n\t"
"paddw %%mm7, %%mm4 \n\t"
"movq %%mm6, "DCTSIZE_S"*7*2(%%"REG_D") \n\t"
"paddw %%mm5, %%mm1 \n\t" //'t12
"movq %%mm4, "DCTSIZE_S"*0*2(%%"REG_D") \n\t"
"psubw %%mm7, %%mm1 \n\t" //'t6
"movq 2*8+%3, %%mm7 \n\t"
"psubw %%mm5, %%mm0 \n\t" //'t10
"movq 3*8+%3, %%mm6 \n\t"
"movq %%mm3, %%mm5 \n\t"
"paddw "DCTSIZE_S"*1*2(%%"REG_D"), %%mm3 \n\t"
"psubw %%mm1, %%mm5 \n\t"
"psubw %%mm1, %%mm2 \n\t" //'t5
"paddw %%mm1, %%mm3 \n\t"
"movq %%mm5, "DCTSIZE_S"*6*2(%%"REG_D") \n\t"
"movq %%mm7, %%mm4 \n\t"
"paddw "DCTSIZE_S"*2*2(%%"REG_D"), %%mm7 \n\t"
"psubw %%mm2, %%mm4 \n\t"
"paddw "DCTSIZE_S"*5*2(%%"REG_D"), %%mm4 \n\t"
"paddw %%mm2, %%mm7 \n\t"
"movq %%mm3, "DCTSIZE_S"*1*2(%%"REG_D") \n\t"
"paddw %%mm2, %%mm0 \n\t" //'t4
// 't4 't6 't5 - - - - 't7
"movq %%mm7, "DCTSIZE_S"*2*2(%%"REG_D") \n\t"
"movq %%mm6, %%mm1 \n\t"
"paddw "DCTSIZE_S"*4*2(%%"REG_D"), %%mm6 \n\t"
"psubw %%mm0, %%mm1 \n\t"
"paddw "DCTSIZE_S"*3*2(%%"REG_D"), %%mm1 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"movq %%mm4, "DCTSIZE_S"*5*2(%%"REG_D") \n\t"
"add $8, %%"REG_S" \n\t"
"movq %%mm6, "DCTSIZE_S"*4*2(%%"REG_D") \n\t"
"movq %%mm1, "DCTSIZE_S"*3*2(%%"REG_D") \n\t"
"add $8, %%"REG_D" \n\t"
"4: \n\t"
//=part 2 (the same)===========================================================
"movq "DCTSIZE_S"*0*2(%%"REG_S"), %%mm1 \n\t"
//
"movq "DCTSIZE_S"*3*2(%%"REG_S"), %%mm7 \n\t"
"movq %%mm1, %%mm0 \n\t"
"paddw "DCTSIZE_S"*7*2(%%"REG_S"), %%mm1 \n\t" //t0
"movq %%mm7, %%mm3 \n\t"
"paddw "DCTSIZE_S"*4*2(%%"REG_S"), %%mm7 \n\t" //t3
"movq %%mm1, %%mm5 \n\t"
"movq "DCTSIZE_S"*1*2(%%"REG_S"), %%mm6 \n\t"
"psubw %%mm7, %%mm1 \n\t" //t13
"movq "DCTSIZE_S"*2*2(%%"REG_S"), %%mm2 \n\t"
"movq %%mm6, %%mm4 \n\t"
"paddw "DCTSIZE_S"*6*2(%%"REG_S"), %%mm6 \n\t" //t1
"paddw %%mm7, %%mm5 \n\t" //t10
"paddw "DCTSIZE_S"*5*2(%%"REG_S"), %%mm2 \n\t" //t2
"movq %%mm6, %%mm7 \n\t"
"paddw %%mm2, %%mm6 \n\t" //t11
"psubw %%mm2, %%mm7 \n\t" //t12
"movq %%mm5, %%mm2 \n\t"
"paddw %%mm6, %%mm5 \n\t" //d0
// i0 t13 t12 i3 i1 d0 - d4
"psubw %%mm6, %%mm2 \n\t" //d4
"paddw %%mm1, %%mm7 \n\t"
"movq 1*8+4*16(%%"REG_d"), %%mm6 \n\t"
"psllw $2, %%mm7 \n\t"
"psubw 1*8+0*16(%%"REG_d"), %%mm5 \n\t"
"psubw %%mm6, %%mm2 \n\t"
"paddusw 1*8+0*16(%%"REG_d"), %%mm5 \n\t"
"paddusw %%mm6, %%mm2 \n\t"
"pmulhw "MANGLE(MM_FIX_0_707106781)", %%mm7 \n\t"
//
"paddw 1*8+0*16(%%"REG_d"), %%mm5 \n\t"
"paddw %%mm6, %%mm2 \n\t"
"psubusw 1*8+0*16(%%"REG_d"), %%mm5 \n\t"
"psubusw %%mm6, %%mm2 \n\t"
//This func is totally compute-bound, operates at huge speed. So, DC shortcut
// at this place isn't worthwhile due to BTB miss penalty (checked on Pent. 3).
//However, typical numbers: nondc - 29%%, dc - 46%%, zero - 25%%. All <> 0 case is very rare.
"paddw "MANGLE(MM_2)", %%mm5 \n\t"
"movq %%mm2, %%mm6 \n\t"
"paddw %%mm5, %%mm2 \n\t"
"psubw %%mm6, %%mm5 \n\t"
"movq %%mm1, %%mm6 \n\t"
"paddw %%mm7, %%mm1 \n\t" //d2
"psubw 1*8+2*16(%%"REG_d"), %%mm1 \n\t"
"psubw %%mm7, %%mm6 \n\t" //d6
"movq 1*8+6*16(%%"REG_d"), %%mm7 \n\t"
"psraw $2, %%mm5 \n\t"
"paddusw 1*8+2*16(%%"REG_d"), %%mm1 \n\t"
"psubw %%mm7, %%mm6 \n\t"
// t7 d2 /t11 t4 t6 - d6 /t10
"paddw 1*8+2*16(%%"REG_d"), %%mm1 \n\t"
"paddusw %%mm7, %%mm6 \n\t"
"psubusw 1*8+2*16(%%"REG_d"), %%mm1 \n\t"
"paddw %%mm7, %%mm6 \n\t"
"psubw "DCTSIZE_S"*4*2(%%"REG_S"), %%mm3 \n\t"
"psubusw %%mm7, %%mm6 \n\t"
//movq [edi+"DCTSIZE_S"*2*2], mm1
//movq [edi+"DCTSIZE_S"*6*2], mm6
"movq %%mm1, %%mm7 \n\t"
"psraw $2, %%mm2 \n\t"
"psubw "DCTSIZE_S"*6*2(%%"REG_S"), %%mm4 \n\t"
"psubw %%mm6, %%mm1 \n\t"
"psubw "DCTSIZE_S"*7*2(%%"REG_S"), %%mm0 \n\t"
"paddw %%mm7, %%mm6 \n\t" //'t13
"psraw $2, %%mm6 \n\t" //paddw mm6, MM_2 !! ---
"movq %%mm2, %%mm7 \n\t"
"pmulhw "MANGLE(MM_FIX_1_414213562_A)", %%mm1 \n\t"
"paddw %%mm6, %%mm2 \n\t" //'t0
"movq %%mm2, 0*8+%3 \n\t" //!
"psubw %%mm6, %%mm7 \n\t" //'t3
"movq "DCTSIZE_S"*2*2(%%"REG_S"), %%mm2 \n\t"
"psubw %%mm6, %%mm1 \n\t" //'t12
"psubw "DCTSIZE_S"*5*2(%%"REG_S"), %%mm2 \n\t" //t5
"movq %%mm5, %%mm6 \n\t"
"movq %%mm7, 3*8+%3 \n\t"
"paddw %%mm2, %%mm3 \n\t" //t10
"paddw %%mm4, %%mm2 \n\t" //t11
"paddw %%mm0, %%mm4 \n\t" //t12
"movq %%mm3, %%mm7 \n\t"
"psubw %%mm4, %%mm3 \n\t"
"psllw $2, %%mm3 \n\t"
"psllw $2, %%mm7 \n\t" //opt for P6
"pmulhw "MANGLE(MM_FIX_0_382683433)", %%mm3 \n\t"
"psllw $2, %%mm4 \n\t"
"pmulhw "MANGLE(MM_FIX_0_541196100)", %%mm7 \n\t"
"psllw $2, %%mm2 \n\t"
"pmulhw "MANGLE(MM_FIX_1_306562965)", %%mm4 \n\t"
"paddw %%mm1, %%mm5 \n\t" //'t1
"pmulhw "MANGLE(MM_FIX_0_707106781)", %%mm2 \n\t"
"psubw %%mm1, %%mm6 \n\t" //'t2
// t7 't12 't11 t4 t6 - 't13 't10 ---
"paddw %%mm3, %%mm7 \n\t" //z2
"movq %%mm5, 1*8+%3 \n\t"
"paddw %%mm3, %%mm4 \n\t" //z4
"movq 1*8+3*16(%%"REG_d"), %%mm3 \n\t"
"movq %%mm0, %%mm1 \n\t"
"movq %%mm6, 2*8+%3 \n\t"
"psubw %%mm2, %%mm1 \n\t" //z13
//===
"paddw %%mm2, %%mm0 \n\t" //z11
"movq %%mm1, %%mm5 \n\t"
"movq 1*8+5*16(%%"REG_d"), %%mm2 \n\t"
"psubw %%mm7, %%mm1 \n\t" //d3
"paddw %%mm7, %%mm5 \n\t" //d5
"psubw %%mm3, %%mm1 \n\t"
"movq 1*8+1*16(%%"REG_d"), %%mm7 \n\t"
"psubw %%mm2, %%mm5 \n\t"
"movq %%mm0, %%mm6 \n\t"
"paddw %%mm4, %%mm0 \n\t" //d1
"paddusw %%mm3, %%mm1 \n\t"
"psubw %%mm4, %%mm6 \n\t" //d7
// d1 d3 - - - d5 d7 -
"movq 1*8+7*16(%%"REG_d"), %%mm4 \n\t"
"psubw %%mm7, %%mm0 \n\t"
"psubw %%mm4, %%mm6 \n\t"
"paddusw %%mm2, %%mm5 \n\t"
"paddusw %%mm4, %%mm6 \n\t"
"paddw %%mm3, %%mm1 \n\t"
"paddw %%mm2, %%mm5 \n\t"
"paddw %%mm4, %%mm6 \n\t"
"psubusw %%mm3, %%mm1 \n\t"
"psubusw %%mm2, %%mm5 \n\t"
"psubusw %%mm4, %%mm6 \n\t"
"movq %%mm1, %%mm4 \n\t"
"por %%mm5, %%mm4 \n\t"
"paddusw %%mm7, %%mm0 \n\t"
"por %%mm6, %%mm4 \n\t"
"paddw %%mm7, %%mm0 \n\t"
"packssdw %%mm4, %%mm4 \n\t"
"psubusw %%mm7, %%mm0 \n\t"
"movd %%mm4, %%"REG_a" \n\t"
"or %%"REG_a", %%"REG_a" \n\t"
"jnz 3f \n\t"
//movq [edi+"DCTSIZE_S"*3*2], mm1
//movq [edi+"DCTSIZE_S"*5*2], mm5
//movq [edi+"DCTSIZE_S"*1*2], mm0
//movq [edi+"DCTSIZE_S"*7*2], mm6
// t4 t5 - - - t6 t7 -
//--- t4 (mm0) may be <>0; mm1, mm5, mm6 == 0
//Typical numbers: nondc - 19%%, dc - 26%%, zero - 55%%. zero case alone isn't worthwhile
"movq 0*8+%3, %%mm4 \n\t"
"movq %%mm0, %%mm1 \n\t"
"pmulhw "MANGLE(MM_FIX_0_847759065)", %%mm0 \n\t" //tmp6
"movq %%mm1, %%mm2 \n\t"
"movq "DCTSIZE_S"*0*2(%%"REG_D"), %%mm5 \n\t"
"movq %%mm2, %%mm3 \n\t"
"pmulhw "MANGLE(MM_FIX_0_566454497)", %%mm1 \n\t" //tmp5
"paddw %%mm4, %%mm5 \n\t"
"movq 1*8+%3, %%mm6 \n\t"
//paddw mm3, MM_2
"psraw $2, %%mm3 \n\t" //tmp7
"pmulhw "MANGLE(MM_FIX_0_198912367)", %%mm2 \n\t" //-tmp4
"psubw %%mm3, %%mm4 \n\t"
"movq "DCTSIZE_S"*1*2(%%"REG_D"), %%mm7 \n\t"
"paddw %%mm3, %%mm5 \n\t"
"movq %%mm4, "DCTSIZE_S"*7*2(%%"REG_D") \n\t"
"paddw %%mm6, %%mm7 \n\t"
"movq 2*8+%3, %%mm3 \n\t"
"psubw %%mm0, %%mm6 \n\t"
"movq "DCTSIZE_S"*2*2(%%"REG_D"), %%mm4 \n\t"
"paddw %%mm0, %%mm7 \n\t"
"movq %%mm5, "DCTSIZE_S"*0*2(%%"REG_D") \n\t"
"paddw %%mm3, %%mm4 \n\t"
"movq %%mm6, "DCTSIZE_S"*6*2(%%"REG_D") \n\t"
"psubw %%mm1, %%mm3 \n\t"
"movq "DCTSIZE_S"*5*2(%%"REG_D"), %%mm5 \n\t"
"paddw %%mm1, %%mm4 \n\t"
"movq "DCTSIZE_S"*3*2(%%"REG_D"), %%mm6 \n\t"
"paddw %%mm3, %%mm5 \n\t"
"movq 3*8+%3, %%mm0 \n\t"
"add $24, %%"REG_S" \n\t"
"movq %%mm7, "DCTSIZE_S"*1*2(%%"REG_D") \n\t"
"paddw %%mm0, %%mm6 \n\t"
"movq %%mm4, "DCTSIZE_S"*2*2(%%"REG_D") \n\t"
"psubw %%mm2, %%mm0 \n\t"
"movq "DCTSIZE_S"*4*2(%%"REG_D"), %%mm7 \n\t"
"paddw %%mm2, %%mm6 \n\t"
"movq %%mm5, "DCTSIZE_S"*5*2(%%"REG_D") \n\t"
"paddw %%mm0, %%mm7 \n\t"
"movq %%mm6, "DCTSIZE_S"*3*2(%%"REG_D") \n\t"
"movq %%mm7, "DCTSIZE_S"*4*2(%%"REG_D") \n\t"
"add $24, %%"REG_D" \n\t"
"sub $2, %%"REG_c" \n\t"
"jnz 1b \n\t"
"jmp 5f \n\t"
"3: \n\t"
//--- non DC2
//psraw mm1, 2 w/o it -> offset. thr1, thr1, thr1 (actually thr1, thr1, thr1-1)
//psraw mm5, 2
//psraw mm0, 2
//psraw mm6, 2
"movq %%mm5, %%mm3 \n\t"
"psubw %%mm1, %%mm5 \n\t"
"psllw $1, %%mm5 \n\t" //'z10
"paddw %%mm1, %%mm3 \n\t" //'z13
"movq %%mm0, %%mm2 \n\t"
"psubw %%mm6, %%mm0 \n\t"
"movq %%mm5, %%mm1 \n\t"
"psllw $1, %%mm0 \n\t" //'z12
"pmulhw "MANGLE(MM_FIX_2_613125930)", %%mm1 \n\t" //-
"paddw %%mm0, %%mm5 \n\t"
"pmulhw "MANGLE(MM_FIX_1_847759065)", %%mm5 \n\t" //'z5
"paddw %%mm6, %%mm2 \n\t" //'z11
"pmulhw "MANGLE(MM_FIX_1_082392200)", %%mm0 \n\t"
"movq %%mm2, %%mm7 \n\t"
//---
"movq 0*8+%3, %%mm4 \n\t"
"psubw %%mm3, %%mm2 \n\t"
"psllw $1, %%mm2 \n\t"
"paddw %%mm3, %%mm7 \n\t" //'t7
"pmulhw "MANGLE(MM_FIX_1_414213562)", %%mm2 \n\t" //'t11
"movq %%mm4, %%mm6 \n\t"
//paddw mm7, MM_2
"psraw $2, %%mm7 \n\t"
"paddw "DCTSIZE_S"*0*2(%%"REG_D"), %%mm4 \n\t"
"psubw %%mm7, %%mm6 \n\t"
"movq 1*8+%3, %%mm3 \n\t"
"paddw %%mm7, %%mm4 \n\t"
"movq %%mm6, "DCTSIZE_S"*7*2(%%"REG_D") \n\t"
"paddw %%mm5, %%mm1 \n\t" //'t12
"movq %%mm4, "DCTSIZE_S"*0*2(%%"REG_D") \n\t"
"psubw %%mm7, %%mm1 \n\t" //'t6
"movq 2*8+%3, %%mm7 \n\t"
"psubw %%mm5, %%mm0 \n\t" //'t10
"movq 3*8+%3, %%mm6 \n\t"
"movq %%mm3, %%mm5 \n\t"
"paddw "DCTSIZE_S"*1*2(%%"REG_D"), %%mm3 \n\t"
"psubw %%mm1, %%mm5 \n\t"
"psubw %%mm1, %%mm2 \n\t" //'t5
"paddw %%mm1, %%mm3 \n\t"
"movq %%mm5, "DCTSIZE_S"*6*2(%%"REG_D") \n\t"
"movq %%mm7, %%mm4 \n\t"
"paddw "DCTSIZE_S"*2*2(%%"REG_D"), %%mm7 \n\t"
"psubw %%mm2, %%mm4 \n\t"
"paddw "DCTSIZE_S"*5*2(%%"REG_D"), %%mm4 \n\t"
"paddw %%mm2, %%mm7 \n\t"
"movq %%mm3, "DCTSIZE_S"*1*2(%%"REG_D") \n\t"
"paddw %%mm2, %%mm0 \n\t" //'t4
// 't4 't6 't5 - - - - 't7
"movq %%mm7, "DCTSIZE_S"*2*2(%%"REG_D") \n\t"
"movq %%mm6, %%mm1 \n\t"
"paddw "DCTSIZE_S"*4*2(%%"REG_D"), %%mm6 \n\t"
"psubw %%mm0, %%mm1 \n\t"
"paddw "DCTSIZE_S"*3*2(%%"REG_D"), %%mm1 \n\t"
"paddw %%mm0, %%mm6 \n\t"
"movq %%mm4, "DCTSIZE_S"*5*2(%%"REG_D") \n\t"
"add $24, %%"REG_S" \n\t"
"movq %%mm6, "DCTSIZE_S"*4*2(%%"REG_D") \n\t"
"movq %%mm1, "DCTSIZE_S"*3*2(%%"REG_D") \n\t"
"add $24, %%"REG_D" \n\t"
"sub $2, %%"REG_c" \n\t"
"jnz 1b \n\t"
"5: \n\t"
: "+S"(data), "+D"(output), "+c"(cnt), "=o"(temps)
: "d"(thr_adr)
: "%"REG_a
);
}
#endif // HAVE_MMX
#ifndef HAVE_MMX
static void row_idct_c(DCTELEM* workspace,
int16_t* output_adr, int output_stride, int cnt)
{
int_simd16_t tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
int_simd16_t tmp10, tmp11, tmp12, tmp13;
int_simd16_t z5, z10, z11, z12, z13;
int16_t* outptr;
DCTELEM* wsptr;
cnt*=4;
wsptr = workspace;
outptr = output_adr;
for (; cnt > 0; cnt--) {
// Even part
//Simd version reads 4x4 block and transposes it
tmp10 = ( wsptr[2] + wsptr[3]);
tmp11 = ( wsptr[2] - wsptr[3]);
tmp13 = ( wsptr[0] + wsptr[1]);
tmp12 = (MULTIPLY16H( wsptr[0] - wsptr[1], FIX_1_414213562_A)<<2) - tmp13;//this shift order to avoid overflow
tmp0 = tmp10 + tmp13; //->temps
tmp3 = tmp10 - tmp13; //->temps
tmp1 = tmp11 + tmp12;
tmp2 = tmp11 - tmp12;
// Odd part
//Also transpose, with previous:
// ---- ---- ||||
// ---- ---- idct ||||
// ---- ---- ---> ||||
// ---- ---- ||||
z13 = wsptr[4] + wsptr[5];
z10 = wsptr[4] - wsptr[5];
z11 = wsptr[6] + wsptr[7];
z12 = wsptr[6] - wsptr[7];
tmp7 = z11 + z13;
tmp11 = MULTIPLY16H(z11 - z13, FIX_1_414213562);
z5 = MULTIPLY16H(z10 + z12, FIX_1_847759065);
tmp10 = MULTIPLY16H(z12, FIX_1_082392200) - z5;
tmp12 = MULTIPLY16H(z10, FIX_2_613125930) + z5; // - FIX_
tmp6 = (tmp12<<3) - tmp7;
tmp5 = (tmp11<<3) - tmp6;
tmp4 = (tmp10<<3) + tmp5;
// Final output stage: descale and write column
outptr[0*output_stride]+= DESCALE(tmp0 + tmp7, 3);
outptr[1*output_stride]+= DESCALE(tmp1 + tmp6, 3);
outptr[2*output_stride]+= DESCALE(tmp2 + tmp5, 3);
outptr[3*output_stride]+= DESCALE(tmp3 - tmp4, 3);
outptr[4*output_stride]+= DESCALE(tmp3 + tmp4, 3);
outptr[5*output_stride]+= DESCALE(tmp2 - tmp5, 3);
outptr[6*output_stride]+= DESCALE(tmp1 - tmp6, 3); //no += ?
outptr[7*output_stride]+= DESCALE(tmp0 - tmp7, 3); //no += ?
outptr++;
wsptr += DCTSIZE; // advance pointer to next row
}
}
#else /* HAVE_MMX */
static void row_idct_mmx (DCTELEM* workspace,
int16_t* output_adr, int output_stride, int cnt)
{
uint64_t __attribute__((aligned(8))) temps[4];
asm volatile(
"lea (%%"REG_a",%%"REG_a",2), %%"REG_d" \n\t"
"1: \n\t"
"movq "DCTSIZE_S"*0*2(%%"REG_S"), %%mm0 \n\t"
//
"movq "DCTSIZE_S"*1*2(%%"REG_S"), %%mm1 \n\t"
"movq %%mm0, %%mm4 \n\t"
"movq "DCTSIZE_S"*2*2(%%"REG_S"), %%mm2 \n\t"
"punpcklwd %%mm1, %%mm0 \n\t"
"movq "DCTSIZE_S"*3*2(%%"REG_S"), %%mm3 \n\t"
"punpckhwd %%mm1, %%mm4 \n\t"
//transpose 4x4
"movq %%mm2, %%mm7 \n\t"
"punpcklwd %%mm3, %%mm2 \n\t"
"movq %%mm0, %%mm6 \n\t"
"punpckldq %%mm2, %%mm0 \n\t" //0
"punpckhdq %%mm2, %%mm6 \n\t" //1
"movq %%mm0, %%mm5 \n\t"
"punpckhwd %%mm3, %%mm7 \n\t"
"psubw %%mm6, %%mm0 \n\t"
"pmulhw "MANGLE(MM_FIX_1_414213562_A)", %%mm0 \n\t"
"movq %%mm4, %%mm2 \n\t"
"punpckldq %%mm7, %%mm4 \n\t" //2
"paddw %%mm6, %%mm5 \n\t"
"punpckhdq %%mm7, %%mm2 \n\t" //3
"movq %%mm4, %%mm1 \n\t"
"psllw $2, %%mm0 \n\t"
"paddw %%mm2, %%mm4 \n\t" //t10
"movq "DCTSIZE_S"*0*2+"DCTSIZE_S"(%%"REG_S"), %%mm3 \n\t"
"psubw %%mm2, %%mm1 \n\t" //t11
"movq "DCTSIZE_S"*1*2+"DCTSIZE_S"(%%"REG_S"), %%mm2 \n\t"
"psubw %%mm5, %%mm0 \n\t"
"movq %%mm4, %%mm6 \n\t"
"paddw %%mm5, %%mm4 \n\t" //t0
"psubw %%mm5, %%mm6 \n\t" //t3
"movq %%mm1, %%mm7 \n\t"
"movq "DCTSIZE_S"*2*2+"DCTSIZE_S"(%%"REG_S"), %%mm5 \n\t"
"paddw %%mm0, %%mm1 \n\t" //t1
"movq %%mm4, 0*8+%3 \n\t" //t0
"movq %%mm3, %%mm4 \n\t"
"movq %%mm6, 1*8+%3 \n\t" //t3
"punpcklwd %%mm2, %%mm3 \n\t"
//transpose 4x4
"movq "DCTSIZE_S"*3*2+"DCTSIZE_S"(%%"REG_S"), %%mm6 \n\t"
"punpckhwd %%mm2, %%mm4 \n\t"
"movq %%mm5, %%mm2 \n\t"
"punpcklwd %%mm6, %%mm5 \n\t"
"psubw %%mm0, %%mm7 \n\t" //t2
"punpckhwd %%mm6, %%mm2 \n\t"
"movq %%mm3, %%mm0 \n\t"
"punpckldq %%mm5, %%mm3 \n\t" //4
"punpckhdq %%mm5, %%mm0 \n\t" //5
"movq %%mm4, %%mm5 \n\t"
//
"movq %%mm3, %%mm6 \n\t"
"punpckldq %%mm2, %%mm4 \n\t" //6
"psubw %%mm0, %%mm3 \n\t" //z10
"punpckhdq %%mm2, %%mm5 \n\t" //7
"paddw %%mm0, %%mm6 \n\t" //z13
"movq %%mm4, %%mm2 \n\t"
"movq %%mm3, %%mm0 \n\t"
"psubw %%mm5, %%mm4 \n\t" //z12
"pmulhw "MANGLE(MM_FIX_2_613125930)", %%mm0 \n\t" //-
"paddw %%mm4, %%mm3 \n\t"
"pmulhw "MANGLE(MM_FIX_1_847759065)", %%mm3 \n\t" //z5
"paddw %%mm5, %%mm2 \n\t" //z11 >
"pmulhw "MANGLE(MM_FIX_1_082392200)", %%mm4 \n\t"
"movq %%mm2, %%mm5 \n\t"
"psubw %%mm6, %%mm2 \n\t"
"paddw %%mm6, %%mm5 \n\t" //t7
"pmulhw "MANGLE(MM_FIX_1_414213562)", %%mm2 \n\t" //t11
"paddw %%mm3, %%mm0 \n\t" //t12
"psllw $3, %%mm0 \n\t"
"psubw %%mm3, %%mm4 \n\t" //t10
"movq 0*8+%3, %%mm6 \n\t"
"movq %%mm1, %%mm3 \n\t"
"psllw $3, %%mm4 \n\t"
"psubw %%mm5, %%mm0 \n\t" //t6
"psllw $3, %%mm2 \n\t"
"paddw %%mm0, %%mm1 \n\t" //d1
"psubw %%mm0, %%mm2 \n\t" //t5
"psubw %%mm0, %%mm3 \n\t" //d6
"paddw %%mm2, %%mm4 \n\t" //t4
"movq %%mm7, %%mm0 \n\t"
"paddw %%mm2, %%mm7 \n\t" //d2
"psubw %%mm2, %%mm0 \n\t" //d5
"movq "MANGLE(MM_DESCALE_RND)", %%mm2 \n\t" //4
"psubw %%mm5, %%mm6 \n\t" //d7
"paddw 0*8+%3, %%mm5 \n\t" //d0
"paddw %%mm2, %%mm1 \n\t"
"paddw %%mm2, %%mm5 \n\t"
"psraw $3, %%mm1 \n\t"
"paddw %%mm2, %%mm7 \n\t"
"psraw $3, %%mm5 \n\t"
"paddw (%%"REG_D"), %%mm5 \n\t"
"psraw $3, %%mm7 \n\t"
"paddw (%%"REG_D",%%"REG_a",), %%mm1 \n\t"
"paddw %%mm2, %%mm0 \n\t"
"paddw (%%"REG_D",%%"REG_a",2), %%mm7 \n\t"
"paddw %%mm2, %%mm3 \n\t"
"movq %%mm5, (%%"REG_D") \n\t"
"paddw %%mm2, %%mm6 \n\t"
"movq %%mm1, (%%"REG_D",%%"REG_a",) \n\t"
"psraw $3, %%mm0 \n\t"
"movq %%mm7, (%%"REG_D",%%"REG_a",2) \n\t"
"add %%"REG_d", %%"REG_D" \n\t" //3*ls
"movq 1*8+%3, %%mm5 \n\t" //t3
"psraw $3, %%mm3 \n\t"
"paddw (%%"REG_D",%%"REG_a",2), %%mm0 \n\t"
"psubw %%mm4, %%mm5 \n\t" //d3
"paddw (%%"REG_D",%%"REG_d",), %%mm3 \n\t"
"psraw $3, %%mm6 \n\t"
"paddw 1*8+%3, %%mm4 \n\t" //d4
"paddw %%mm2, %%mm5 \n\t"
"paddw (%%"REG_D",%%"REG_a",4), %%mm6 \n\t"
"paddw %%mm2, %%mm4 \n\t"
"movq %%mm0, (%%"REG_D",%%"REG_a",2) \n\t"
"psraw $3, %%mm5 \n\t"
"paddw (%%"REG_D"), %%mm5 \n\t"
"psraw $3, %%mm4 \n\t"
"paddw (%%"REG_D",%%"REG_a",), %%mm4 \n\t"
"add $"DCTSIZE_S"*2*4, %%"REG_S" \n\t" //4 rows
"movq %%mm3, (%%"REG_D",%%"REG_d",) \n\t"
"movq %%mm6, (%%"REG_D",%%"REG_a",4) \n\t"
"movq %%mm5, (%%"REG_D") \n\t"
"movq %%mm4, (%%"REG_D",%%"REG_a",) \n\t"
"sub %%"REG_d", %%"REG_D" \n\t"
"add $8, %%"REG_D" \n\t"
"dec %%"REG_c" \n\t"
"jnz 1b \n\t"
: "+S"(workspace), "+D"(output_adr), "+c"(cnt), "=o"(temps)
: "a"(output_stride*sizeof(short))
: "%"REG_d
);
}
#endif // HAVE_MMX
#ifndef HAVE_MMX
static void row_fdct_c(DCTELEM *data, const uint8_t *pixels, int line_size, int cnt)
{
int_simd16_t tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
int_simd16_t tmp10, tmp11, tmp12, tmp13;
int_simd16_t z1, z2, z3, z4, z5, z11, z13;
DCTELEM *dataptr;
cnt*=4;
// Pass 1: process rows.
dataptr = data;
for (; cnt > 0; cnt--) {
tmp0 = pixels[line_size*0] + pixels[line_size*7];
tmp7 = pixels[line_size*0] - pixels[line_size*7];
tmp1 = pixels[line_size*1] + pixels[line_size*6];
tmp6 = pixels[line_size*1] - pixels[line_size*6];
tmp2 = pixels[line_size*2] + pixels[line_size*5];
tmp5 = pixels[line_size*2] - pixels[line_size*5];
tmp3 = pixels[line_size*3] + pixels[line_size*4];
tmp4 = pixels[line_size*3] - pixels[line_size*4];
// Even part
tmp10 = tmp0 + tmp3;
tmp13 = tmp0 - tmp3;
tmp11 = tmp1 + tmp2;
tmp12 = tmp1 - tmp2;
//Even columns are written first, this leads to different order of columns
//in column_fidct(), but they are processed independently, so all ok.
//Later in the row_idct() columns readed at the same order.
dataptr[2] = tmp10 + tmp11;
dataptr[3] = tmp10 - tmp11;
z1 = MULTIPLY16H((tmp12 + tmp13)<<2, FIX_0_707106781);
dataptr[0] = tmp13 + z1;
dataptr[1] = tmp13 - z1;
// Odd part
tmp10 = (tmp4 + tmp5) <<2;
tmp11 = (tmp5 + tmp6) <<2;
tmp12 = (tmp6 + tmp7) <<2;
z5 = MULTIPLY16H(tmp10 - tmp12, FIX_0_382683433);
z2 = MULTIPLY16H(tmp10, FIX_0_541196100) + z5;
z4 = MULTIPLY16H(tmp12, FIX_1_306562965) + z5;
z3 = MULTIPLY16H(tmp11, FIX_0_707106781);
z11 = tmp7 + z3;
z13 = tmp7 - z3;
dataptr[4] = z13 + z2;
dataptr[5] = z13 - z2;
dataptr[6] = z11 + z4;
dataptr[7] = z11 - z4;
pixels++; // advance pointer to next column
dataptr += DCTSIZE;
}
}
#else /* HAVE_MMX */
static void row_fdct_mmx(DCTELEM *data, const uint8_t *pixels, int line_size, int cnt)
{
uint64_t __attribute__((aligned(8))) temps[4];
asm volatile(
"lea (%%"REG_a",%%"REG_a",2), %%"REG_d" \n\t"
"6: \n\t"
"movd (%%"REG_S"), %%mm0 \n\t"
"pxor %%mm7, %%mm7 \n\t"
"movd (%%"REG_S",%%"REG_a",), %%mm1 \n\t"
"punpcklbw %%mm7, %%mm0 \n\t"
"movd (%%"REG_S",%%"REG_a",2), %%mm2 \n\t"
"punpcklbw %%mm7, %%mm1 \n\t"
"punpcklbw %%mm7, %%mm2 \n\t"
"add %%"REG_d", %%"REG_S" \n\t"
"movq %%mm0, %%mm5 \n\t"
//
"movd (%%"REG_S",%%"REG_a",4), %%mm3 \n\t" //7 ;prefetch!
"movq %%mm1, %%mm6 \n\t"
"movd (%%"REG_S",%%"REG_d",), %%mm4 \n\t" //6
"punpcklbw %%mm7, %%mm3 \n\t"
"psubw %%mm3, %%mm5 \n\t"
"punpcklbw %%mm7, %%mm4 \n\t"
"paddw %%mm3, %%mm0 \n\t"
"psubw %%mm4, %%mm6 \n\t"
"movd (%%"REG_S",%%"REG_a",2), %%mm3 \n\t" //5
"paddw %%mm4, %%mm1 \n\t"
"movq %%mm5, 0*8+%3 \n\t" //t7
"punpcklbw %%mm7, %%mm3 \n\t"
"movq %%mm6, 1*8+%3 \n\t" //t6
"movq %%mm2, %%mm4 \n\t"
"movd (%%"REG_S"), %%mm5 \n\t" //3
"paddw %%mm3, %%mm2 \n\t"
"movd (%%"REG_S",%%"REG_a",), %%mm6 \n\t" //4
"punpcklbw %%mm7, %%mm5 \n\t"
"psubw %%mm3, %%mm4 \n\t"
"punpcklbw %%mm7, %%mm6 \n\t"
"movq %%mm5, %%mm3 \n\t"
"paddw %%mm6, %%mm5 \n\t" //t3
"psubw %%mm6, %%mm3 \n\t" //t4 ; t0 t1 t2 t4 t5 t3 - -
"movq %%mm0, %%mm6 \n\t"
"movq %%mm1, %%mm7 \n\t"
"psubw %%mm5, %%mm0 \n\t" //t13
"psubw %%mm2, %%mm1 \n\t"
"paddw %%mm2, %%mm7 \n\t" //t11
"paddw %%mm0, %%mm1 \n\t"
"movq %%mm7, %%mm2 \n\t"
"psllw $2, %%mm1 \n\t"
"paddw %%mm5, %%mm6 \n\t" //t10
"pmulhw "MANGLE(MM_FIX_0_707106781)", %%mm1 \n\t"
"paddw %%mm6, %%mm7 \n\t" //d2
"psubw %%mm2, %%mm6 \n\t" //d3
"movq %%mm0, %%mm5 \n\t"
//transpose 4x4
"movq %%mm7, %%mm2 \n\t"
"punpcklwd %%mm6, %%mm7 \n\t"
"paddw %%mm1, %%mm0 \n\t" //d0
"punpckhwd %%mm6, %%mm2 \n\t"
"psubw %%mm1, %%mm5 \n\t" //d1
"movq %%mm0, %%mm6 \n\t"
"movq 1*8+%3, %%mm1 \n\t"
"punpcklwd %%mm5, %%mm0 \n\t"
"punpckhwd %%mm5, %%mm6 \n\t"
"movq %%mm0, %%mm5 \n\t"
"punpckldq %%mm7, %%mm0 \n\t" //0
"paddw %%mm4, %%mm3 \n\t"
"punpckhdq %%mm7, %%mm5 \n\t" //1
"movq %%mm6, %%mm7 \n\t"
"movq %%mm0, "DCTSIZE_S"*0*2(%%"REG_D") \n\t"
"punpckldq %%mm2, %%mm6 \n\t" //2
"movq %%mm5, "DCTSIZE_S"*1*2(%%"REG_D") \n\t"
"punpckhdq %%mm2, %%mm7 \n\t" //3
"movq %%mm6, "DCTSIZE_S"*2*2(%%"REG_D") \n\t"
"paddw %%mm1, %%mm4 \n\t"
"movq %%mm7, "DCTSIZE_S"*3*2(%%"REG_D") \n\t"
"psllw $2, %%mm3 \n\t" //t10
"movq 0*8+%3, %%mm2 \n\t"
"psllw $2, %%mm4 \n\t" //t11
"pmulhw "MANGLE(MM_FIX_0_707106781)", %%mm4 \n\t" //z3
"paddw %%mm2, %%mm1 \n\t"
"psllw $2, %%mm1 \n\t" //t12
"movq %%mm3, %%mm0 \n\t"
"pmulhw "MANGLE(MM_FIX_0_541196100)", %%mm0 \n\t"
"psubw %%mm1, %%mm3 \n\t"
"pmulhw "MANGLE(MM_FIX_0_382683433)", %%mm3 \n\t" //z5
"movq %%mm2, %%mm5 \n\t"
"pmulhw "MANGLE(MM_FIX_1_306562965)", %%mm1 \n\t"
"psubw %%mm4, %%mm2 \n\t" //z13
"paddw %%mm4, %%mm5 \n\t" //z11
"movq %%mm2, %%mm6 \n\t"
"paddw %%mm3, %%mm0 \n\t" //z2
"movq %%mm5, %%mm7 \n\t"
"paddw %%mm0, %%mm2 \n\t" //d4
"psubw %%mm0, %%mm6 \n\t" //d5
"movq %%mm2, %%mm4 \n\t"
"paddw %%mm3, %%mm1 \n\t" //z4
//transpose 4x4
"punpcklwd %%mm6, %%mm2 \n\t"
"paddw %%mm1, %%mm5 \n\t" //d6
"punpckhwd %%mm6, %%mm4 \n\t"
"psubw %%mm1, %%mm7 \n\t" //d7
"movq %%mm5, %%mm6 \n\t"
"punpcklwd %%mm7, %%mm5 \n\t"
"punpckhwd %%mm7, %%mm6 \n\t"
"movq %%mm2, %%mm7 \n\t"
"punpckldq %%mm5, %%mm2 \n\t" //4
"sub %%"REG_d", %%"REG_S" \n\t"
"punpckhdq %%mm5, %%mm7 \n\t" //5
"movq %%mm4, %%mm5 \n\t"
"movq %%mm2, "DCTSIZE_S"*0*2+"DCTSIZE_S"(%%"REG_D") \n\t"
"punpckldq %%mm6, %%mm4 \n\t" //6
"movq %%mm7, "DCTSIZE_S"*1*2+"DCTSIZE_S"(%%"REG_D") \n\t"
"punpckhdq %%mm6, %%mm5 \n\t" //7
"movq %%mm4, "DCTSIZE_S"*2*2+"DCTSIZE_S"(%%"REG_D") \n\t"
"add $4, %%"REG_S" \n\t"
"movq %%mm5, "DCTSIZE_S"*3*2+"DCTSIZE_S"(%%"REG_D") \n\t"
"add $"DCTSIZE_S"*2*4, %%"REG_D" \n\t" //4 rows
"dec %%"REG_c" \n\t"
"jnz 6b \n\t"
: "+S"(pixels), "+D"(data), "+c"(cnt), "=o"(temps)
: "a"(line_size)
: "%"REG_d);
}
#endif // HAVE_MMX
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