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optimization 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9991 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
rfelker 2003-04-26 05:59:28 +00:00
parent 5e64850517
commit 6744b62fc0
1 changed files with 31 additions and 6 deletions
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37
libmpcodecs/vf_ivtc.c
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@ -61,7 +61,7 @@ static void block_diffs_MMX(struct metrics *m, unsigned char *old, unsigned char
int i;
short out[24]; // output buffer for the partial metrics from the mmx code
asm (""
asm (
"movl $4, %%ecx \n\t"
"pxor %%mm4, %%mm4 \n\t" // 4 even difference sums
"pxor %%mm5, %%mm5 \n\t" // 4 odd difference sums
@ -120,7 +120,7 @@ static void block_diffs_MMX(struct metrics *m, unsigned char *old, unsigned char
m->o = out[4]+out[5]+out[6]+out[7];
m->d = m->e + m->o;
asm (""
asm (
// First loop to measure first four columns
"movl $4, %%ecx \n\t"
"pxor %%mm4, %%mm4 \n\t" // Past spacial noise
@ -151,6 +151,19 @@ static void block_diffs_MMX(struct metrics *m, unsigned char *old, unsigned char
"decl %%ecx \n\t"
"jnz 2b \n\t"
"movq %%mm0, %%mm1 \n\t"
"movq %%mm0, %%mm2 \n\t"
"movq %%mm0, %%mm3 \n\t"
"pcmpgtw %%mm4, %%mm1 \n\t"
"pcmpgtw %%mm5, %%mm2 \n\t"
"pcmpgtw %%mm6, %%mm3 \n\t"
"pxor %%mm1, %%mm4 \n\t"
"pxor %%mm2, %%mm5 \n\t"
"pxor %%mm3, %%mm6 \n\t"
"psubw %%mm1, %%mm4 \n\t"
"psubw %%mm2, %%mm5 \n\t"
"psubw %%mm3, %%mm6 \n\t"
"movq %%mm4, (%%edx) \n\t"
"movq %%mm5, 16(%%edx) \n\t"
"movq %%mm6, 32(%%edx) \n\t"
@ -192,6 +205,19 @@ static void block_diffs_MMX(struct metrics *m, unsigned char *old, unsigned char
"decl %%ecx \n\t"
"jnz 3b \n\t"
"movq %%mm0, %%mm1 \n\t"
"movq %%mm0, %%mm2 \n\t"
"movq %%mm0, %%mm3 \n\t"
"pcmpgtw %%mm4, %%mm1 \n\t"
"pcmpgtw %%mm5, %%mm2 \n\t"
"pcmpgtw %%mm6, %%mm3 \n\t"
"pxor %%mm1, %%mm4 \n\t"
"pxor %%mm2, %%mm5 \n\t"
"pxor %%mm3, %%mm6 \n\t"
"psubw %%mm1, %%mm4 \n\t"
"psubw %%mm2, %%mm5 \n\t"
"psubw %%mm3, %%mm6 \n\t"
"movq %%mm4, 8(%%edx) \n\t"
"movq %%mm5, 24(%%edx) \n\t"
"movq %%mm6, 40(%%edx) \n\t"
@ -203,10 +229,9 @@ static void block_diffs_MMX(struct metrics *m, unsigned char *old, unsigned char
);
m->p = m->t = m->s = 0;
for (i=0; i<8; i++) {
// FIXME: move abs() into the mmx code!
m->p += abs(out[i]);
m->t += abs(out[8+i]);
m->s += abs(out[16+i]);
m->p += out[i];
m->t += out[8+i];
m->s += out[16+i];
}
//printf("e=%d o=%d d=%d p=%d t=%d s=%d\n", m->e, m->o, m->d, m->p, m->t, m->s);
}