📄 postprocess_template.c
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"movq %%mm7, %%mm6 \n\t" // 0
"pcmpgtw %%mm0, %%mm6 \n\t"
"pxor %%mm6, %%mm0 \n\t"
"psubw %%mm6, %%mm0 \n\t" // |2L4 - 5L5 + 5L6 - 2L7|
"movq %%mm7, %%mm6 \n\t" // 0
"pcmpgtw %%mm1, %%mm6 \n\t"
"pxor %%mm6, %%mm1 \n\t"
"psubw %%mm6, %%mm1 \n\t" // |2H4 - 5H5 + 5H6 - 2H7|
"movq %%mm7, %%mm6 \n\t" // 0
"pcmpgtw %%mm2, %%mm6 \n\t"
"pxor %%mm6, %%mm2 \n\t"
"psubw %%mm6, %%mm2 \n\t" // |2L0 - 5L1 + 5L2 - 2L3|
"movq %%mm7, %%mm6 \n\t" // 0
"pcmpgtw %%mm3, %%mm6 \n\t"
"pxor %%mm6, %%mm3 \n\t"
"psubw %%mm6, %%mm3 \n\t" // |2H0 - 5H1 + 5H2 - 2H3|
#endif
#ifdef HAVE_MMX2
"pminsw %%mm2, %%mm0 \n\t"
"pminsw %%mm3, %%mm1 \n\t"
#else
"movq %%mm0, %%mm6 \n\t"
"psubusw %%mm2, %%mm6 \n\t"
"psubw %%mm6, %%mm0 \n\t"
"movq %%mm1, %%mm6 \n\t"
"psubusw %%mm3, %%mm6 \n\t"
"psubw %%mm6, %%mm1 \n\t"
#endif
"movd %2, %%mm2 \n\t" // QP
"punpcklbw %%mm7, %%mm2 \n\t"
"movq %%mm7, %%mm6 \n\t" // 0
"pcmpgtw %%mm4, %%mm6 \n\t" // sign(2L2 - 5L3 + 5L4 - 2L5)
"pxor %%mm6, %%mm4 \n\t"
"psubw %%mm6, %%mm4 \n\t" // |2L2 - 5L3 + 5L4 - 2L5|
"pcmpgtw %%mm5, %%mm7 \n\t" // sign(2H2 - 5H3 + 5H4 - 2H5)
"pxor %%mm7, %%mm5 \n\t"
"psubw %%mm7, %%mm5 \n\t" // |2H2 - 5H3 + 5H4 - 2H5|
// 100 opcodes
"psllw $3, %%mm2 \n\t" // 8QP
"movq %%mm2, %%mm3 \n\t" // 8QP
"pcmpgtw %%mm4, %%mm2 \n\t"
"pcmpgtw %%mm5, %%mm3 \n\t"
"pand %%mm2, %%mm4 \n\t"
"pand %%mm3, %%mm5 \n\t"
"psubusw %%mm0, %%mm4 \n\t" // hd
"psubusw %%mm1, %%mm5 \n\t" // ld
"movq "MANGLE(w05)", %%mm2 \n\t" // 5
"pmullw %%mm2, %%mm4 \n\t"
"pmullw %%mm2, %%mm5 \n\t"
"movq "MANGLE(w20)", %%mm2 \n\t" // 32
"paddw %%mm2, %%mm4 \n\t"
"paddw %%mm2, %%mm5 \n\t"
"psrlw $6, %%mm4 \n\t"
"psrlw $6, %%mm5 \n\t"
"movq 16(%%"REG_c"), %%mm0 \n\t" // L3 - L4
"movq 24(%%"REG_c"), %%mm1 \n\t" // H3 - H4
"pxor %%mm2, %%mm2 \n\t"
"pxor %%mm3, %%mm3 \n\t"
"pcmpgtw %%mm0, %%mm2 \n\t" // sign (L3-L4)
"pcmpgtw %%mm1, %%mm3 \n\t" // sign (H3-H4)
"pxor %%mm2, %%mm0 \n\t"
"pxor %%mm3, %%mm1 \n\t"
"psubw %%mm2, %%mm0 \n\t" // |L3-L4|
"psubw %%mm3, %%mm1 \n\t" // |H3-H4|
"psrlw $1, %%mm0 \n\t" // |L3 - L4|/2
"psrlw $1, %%mm1 \n\t" // |H3 - H4|/2
"pxor %%mm6, %%mm2 \n\t"
"pxor %%mm7, %%mm3 \n\t"
"pand %%mm2, %%mm4 \n\t"
"pand %%mm3, %%mm5 \n\t"
#ifdef HAVE_MMX2
"pminsw %%mm0, %%mm4 \n\t"
"pminsw %%mm1, %%mm5 \n\t"
#else
"movq %%mm4, %%mm2 \n\t"
"psubusw %%mm0, %%mm2 \n\t"
"psubw %%mm2, %%mm4 \n\t"
"movq %%mm5, %%mm2 \n\t"
"psubusw %%mm1, %%mm2 \n\t"
"psubw %%mm2, %%mm5 \n\t"
#endif
"pxor %%mm6, %%mm4 \n\t"
"pxor %%mm7, %%mm5 \n\t"
"psubw %%mm6, %%mm4 \n\t"
"psubw %%mm7, %%mm5 \n\t"
"packsswb %%mm5, %%mm4 \n\t"
"movq (%0), %%mm0 \n\t"
"paddb %%mm4, %%mm0 \n\t"
"movq %%mm0, (%0) \n\t"
"movq (%0, %1), %%mm0 \n\t"
"psubb %%mm4, %%mm0 \n\t"
"movq %%mm0, (%0, %1) \n\t"
: "+r" (src)
: "r" ((long)stride), "m" (c->pQPb)
: "%"REG_a, "%"REG_c
);
#else //defined (HAVE_MMX2) || defined (HAVE_3DNOW)
const int l1= stride;
const int l2= stride + l1;
const int l3= stride + l2;
const int l4= stride + l3;
const int l5= stride + l4;
const int l6= stride + l5;
const int l7= stride + l6;
const int l8= stride + l7;
// const int l9= stride + l8;
int x;
src+= stride*3;
for(x=0; x<BLOCK_SIZE; x++)
{
const int middleEnergy= 5*(src[l5] - src[l4]) + 2*(src[l3] - src[l6]);
if(FFABS(middleEnergy) < 8*c->QP)
{
const int q=(src[l4] - src[l5])/2;
const int leftEnergy= 5*(src[l3] - src[l2]) + 2*(src[l1] - src[l4]);
const int rightEnergy= 5*(src[l7] - src[l6]) + 2*(src[l5] - src[l8]);
int d= FFABS(middleEnergy) - FFMIN( FFABS(leftEnergy), FFABS(rightEnergy) );
d= FFMAX(d, 0);
d= (5*d + 32) >> 6;
d*= FFSIGN(-middleEnergy);
if(q>0)
{
d= d<0 ? 0 : d;
d= d>q ? q : d;
}
else
{
d= d>0 ? 0 : d;
d= d<q ? q : d;
}
src[l4]-= d;
src[l5]+= d;
}
src++;
}
#endif //defined (HAVE_MMX2) || defined (HAVE_3DNOW)
}
#endif //HAVE_ALTIVEC
#ifndef HAVE_ALTIVEC
static inline void RENAME(dering)(uint8_t src[], int stride, PPContext *c)
{
#if defined (HAVE_MMX2) || defined (HAVE_3DNOW)
asm volatile(
"pxor %%mm6, %%mm6 \n\t"
"pcmpeqb %%mm7, %%mm7 \n\t"
"movq %2, %%mm0 \n\t"
"punpcklbw %%mm6, %%mm0 \n\t"
"psrlw $1, %%mm0 \n\t"
"psubw %%mm7, %%mm0 \n\t"
"packuswb %%mm0, %%mm0 \n\t"
"movq %%mm0, %3 \n\t"
"lea (%0, %1), %%"REG_a" \n\t"
"lea (%%"REG_a", %1, 4), %%"REG_d" \n\t"
// 0 1 2 3 4 5 6 7 8 9
// %0 eax eax+%1 eax+2%1 %0+4%1 edx edx+%1 edx+2%1 %0+8%1 edx+4%1
#undef FIND_MIN_MAX
#ifdef HAVE_MMX2
#define REAL_FIND_MIN_MAX(addr)\
"movq " #addr ", %%mm0 \n\t"\
"pminub %%mm0, %%mm7 \n\t"\
"pmaxub %%mm0, %%mm6 \n\t"
#else
#define REAL_FIND_MIN_MAX(addr)\
"movq " #addr ", %%mm0 \n\t"\
"movq %%mm7, %%mm1 \n\t"\
"psubusb %%mm0, %%mm6 \n\t"\
"paddb %%mm0, %%mm6 \n\t"\
"psubusb %%mm0, %%mm1 \n\t"\
"psubb %%mm1, %%mm7 \n\t"
#endif
#define FIND_MIN_MAX(addr) REAL_FIND_MIN_MAX(addr)
FIND_MIN_MAX((%%REGa))
FIND_MIN_MAX((%%REGa, %1))
FIND_MIN_MAX((%%REGa, %1, 2))
FIND_MIN_MAX((%0, %1, 4))
FIND_MIN_MAX((%%REGd))
FIND_MIN_MAX((%%REGd, %1))
FIND_MIN_MAX((%%REGd, %1, 2))
FIND_MIN_MAX((%0, %1, 8))
"movq %%mm7, %%mm4 \n\t"
"psrlq $8, %%mm7 \n\t"
#ifdef HAVE_MMX2
"pminub %%mm4, %%mm7 \n\t" // min of pixels
"pshufw $0xF9, %%mm7, %%mm4 \n\t"
"pminub %%mm4, %%mm7 \n\t" // min of pixels
"pshufw $0xFE, %%mm7, %%mm4 \n\t"
"pminub %%mm4, %%mm7 \n\t"
#else
"movq %%mm7, %%mm1 \n\t"
"psubusb %%mm4, %%mm1 \n\t"
"psubb %%mm1, %%mm7 \n\t"
"movq %%mm7, %%mm4 \n\t"
"psrlq $16, %%mm7 \n\t"
"movq %%mm7, %%mm1 \n\t"
"psubusb %%mm4, %%mm1 \n\t"
"psubb %%mm1, %%mm7 \n\t"
"movq %%mm7, %%mm4 \n\t"
"psrlq $32, %%mm7 \n\t"
"movq %%mm7, %%mm1 \n\t"
"psubusb %%mm4, %%mm1 \n\t"
"psubb %%mm1, %%mm7 \n\t"
#endif
"movq %%mm6, %%mm4 \n\t"
"psrlq $8, %%mm6 \n\t"
#ifdef HAVE_MMX2
"pmaxub %%mm4, %%mm6 \n\t" // max of pixels
"pshufw $0xF9, %%mm6, %%mm4 \n\t"
"pmaxub %%mm4, %%mm6 \n\t"
"pshufw $0xFE, %%mm6, %%mm4 \n\t"
"pmaxub %%mm4, %%mm6 \n\t"
#else
"psubusb %%mm4, %%mm6 \n\t"
"paddb %%mm4, %%mm6 \n\t"
"movq %%mm6, %%mm4 \n\t"
"psrlq $16, %%mm6 \n\t"
"psubusb %%mm4, %%mm6 \n\t"
"paddb %%mm4, %%mm6 \n\t"
"movq %%mm6, %%mm4 \n\t"
"psrlq $32, %%mm6 \n\t"
"psubusb %%mm4, %%mm6 \n\t"
"paddb %%mm4, %%mm6 \n\t"
#endif
"movq %%mm6, %%mm0 \n\t" // max
"psubb %%mm7, %%mm6 \n\t" // max - min
"movd %%mm6, %%ecx \n\t"
"cmpb "MANGLE(deringThreshold)", %%cl \n\t"
" jb 1f \n\t"
"lea -24(%%"REG_SP"), %%"REG_c" \n\t"
"and "ALIGN_MASK", %%"REG_c" \n\t"
PAVGB(%%mm0, %%mm7) // a=(max + min)/2
"punpcklbw %%mm7, %%mm7 ⌨️ 快捷键说明
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