mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-14 19:25:01 +00:00
227 lines
7.9 KiB
C
227 lines
7.9 KiB
C
/*
|
|
* MPEG video MMX templates
|
|
*
|
|
* Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
#undef SPREADW
|
|
#undef PMAXW
|
|
#ifdef HAVE_MMX2
|
|
#define SPREADW(a) "pshufw $0, " #a ", " #a " \n\t"
|
|
#define PMAXW(a,b) "pmaxsw " #a ", " #b " \n\t"
|
|
|
|
#else
|
|
#define SPREADW(a) \
|
|
"punpcklwd " #a ", " #a " \n\t"\
|
|
"punpcklwd " #a ", " #a " \n\t"
|
|
#define PMAXW(a,b) \
|
|
"psubusw " #a ", " #b " \n\t"\
|
|
"paddw " #a ", " #b " \n\t"
|
|
#endif
|
|
|
|
static int RENAME(dct_quantize)(MpegEncContext *s,
|
|
DCTELEM *block, int n,
|
|
int qscale, int *overflow)
|
|
{
|
|
int level=0, last_non_zero_p1, q; //=0 is cuz gcc says uninitalized ...
|
|
const UINT16 *qmat, *bias;
|
|
static __align8 INT16 temp_block[64];
|
|
|
|
av_fdct (block);
|
|
|
|
if (s->mb_intra) {
|
|
int dummy;
|
|
if (n < 4)
|
|
q = s->y_dc_scale;
|
|
else
|
|
q = s->c_dc_scale;
|
|
/* note: block[0] is assumed to be positive */
|
|
if (!s->h263_aic) {
|
|
#if 1
|
|
asm volatile (
|
|
"xorl %%edx, %%edx \n\t"
|
|
"mul %%ecx \n\t"
|
|
: "=d" (level), "=a"(dummy)
|
|
: "a" (block[0] + (q >> 1)), "c" (inverse[q])
|
|
);
|
|
#else
|
|
asm volatile (
|
|
"xorl %%edx, %%edx \n\t"
|
|
"divw %%cx \n\t"
|
|
"movzwl %%ax, %%eax \n\t"
|
|
: "=a" (level)
|
|
: "a" (block[0] + (q >> 1)), "c" (q)
|
|
: "%edx"
|
|
);
|
|
#endif
|
|
} else
|
|
/* For AIC we skip quant/dequant of INTRADC */
|
|
level = block[0];
|
|
|
|
block[0]=0; //avoid fake overflow
|
|
// temp_block[0] = (block[0] + (q >> 1)) / q;
|
|
last_non_zero_p1 = 1;
|
|
bias = s->q_intra_matrix16_bias[qscale];
|
|
qmat = s->q_intra_matrix16[qscale];
|
|
} else {
|
|
last_non_zero_p1 = 0;
|
|
bias = s->q_inter_matrix16_bias[qscale];
|
|
qmat = s->q_inter_matrix16[qscale];
|
|
}
|
|
|
|
if(s->out_format == FMT_H263 && s->mpeg_quant==0){
|
|
|
|
asm volatile(
|
|
"movd %%eax, %%mm3 \n\t" // last_non_zero_p1
|
|
SPREADW(%%mm3)
|
|
"pxor %%mm7, %%mm7 \n\t" // 0
|
|
"pxor %%mm4, %%mm4 \n\t" // 0
|
|
"movq (%2), %%mm5 \n\t" // qmat[0]
|
|
"pxor %%mm6, %%mm6 \n\t"
|
|
"psubw (%3), %%mm6 \n\t" // -bias[0]
|
|
"movl $-128, %%eax \n\t"
|
|
".balign 16 \n\t"
|
|
"1: \n\t"
|
|
"pxor %%mm1, %%mm1 \n\t" // 0
|
|
"movq (%1, %%eax), %%mm0 \n\t" // block[i]
|
|
"pcmpgtw %%mm0, %%mm1 \n\t" // block[i] <= 0 ? 0xFF : 0x00
|
|
"pxor %%mm1, %%mm0 \n\t"
|
|
"psubw %%mm1, %%mm0 \n\t" // ABS(block[i])
|
|
"psubusw %%mm6, %%mm0 \n\t" // ABS(block[i]) + bias[0]
|
|
"pmulhw %%mm5, %%mm0 \n\t" // (ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16
|
|
"por %%mm0, %%mm4 \n\t"
|
|
"pxor %%mm1, %%mm0 \n\t"
|
|
"psubw %%mm1, %%mm0 \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
|
|
"movq %%mm0, (%5, %%eax) \n\t"
|
|
"pcmpeqw %%mm7, %%mm0 \n\t" // out==0 ? 0xFF : 0x00
|
|
"movq (%4, %%eax), %%mm1 \n\t"
|
|
"movq %%mm7, (%1, %%eax) \n\t" // 0
|
|
"pandn %%mm1, %%mm0 \n\t"
|
|
PMAXW(%%mm0, %%mm3)
|
|
"addl $8, %%eax \n\t"
|
|
" js 1b \n\t"
|
|
"movq %%mm3, %%mm0 \n\t"
|
|
"psrlq $32, %%mm3 \n\t"
|
|
PMAXW(%%mm0, %%mm3)
|
|
"movq %%mm3, %%mm0 \n\t"
|
|
"psrlq $16, %%mm3 \n\t"
|
|
PMAXW(%%mm0, %%mm3)
|
|
"movd %%mm3, %%eax \n\t"
|
|
"movzbl %%al, %%eax \n\t" // last_non_zero_p1
|
|
: "+a" (last_non_zero_p1)
|
|
: "r" (block+64), "r" (qmat), "r" (bias),
|
|
"r" (inv_zigzag_direct16+64), "r" (temp_block+64)
|
|
);
|
|
// note the asm is split cuz gcc doesnt like that many operands ...
|
|
asm volatile(
|
|
"movd %1, %%mm1 \n\t" // max_qcoeff
|
|
SPREADW(%%mm1)
|
|
"psubusw %%mm1, %%mm4 \n\t"
|
|
"packuswb %%mm4, %%mm4 \n\t"
|
|
"movd %%mm4, %0 \n\t" // *overflow
|
|
: "=g" (*overflow)
|
|
: "g" (s->max_qcoeff)
|
|
);
|
|
}else{ // FMT_H263
|
|
asm volatile(
|
|
"movd %%eax, %%mm3 \n\t" // last_non_zero_p1
|
|
SPREADW(%%mm3)
|
|
"pxor %%mm7, %%mm7 \n\t" // 0
|
|
"pxor %%mm4, %%mm4 \n\t" // 0
|
|
"movl $-128, %%eax \n\t"
|
|
".balign 16 \n\t"
|
|
"1: \n\t"
|
|
"pxor %%mm1, %%mm1 \n\t" // 0
|
|
"movq (%1, %%eax), %%mm0 \n\t" // block[i]
|
|
"pcmpgtw %%mm0, %%mm1 \n\t" // block[i] <= 0 ? 0xFF : 0x00
|
|
"pxor %%mm1, %%mm0 \n\t"
|
|
"psubw %%mm1, %%mm0 \n\t" // ABS(block[i])
|
|
"movq (%3, %%eax), %%mm6 \n\t" // bias[0]
|
|
"paddusw %%mm6, %%mm0 \n\t" // ABS(block[i]) + bias[0]
|
|
"movq (%2, %%eax), %%mm5 \n\t" // qmat[i]
|
|
"pmulhw %%mm5, %%mm0 \n\t" // (ABS(block[i])*qmat[0] + bias[0]*qmat[0])>>16
|
|
"por %%mm0, %%mm4 \n\t"
|
|
"pxor %%mm1, %%mm0 \n\t"
|
|
"psubw %%mm1, %%mm0 \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
|
|
"movq %%mm0, (%5, %%eax) \n\t"
|
|
"pcmpeqw %%mm7, %%mm0 \n\t" // out==0 ? 0xFF : 0x00
|
|
"movq (%4, %%eax), %%mm1 \n\t"
|
|
"movq %%mm7, (%1, %%eax) \n\t" // 0
|
|
"pandn %%mm1, %%mm0 \n\t"
|
|
PMAXW(%%mm0, %%mm3)
|
|
"addl $8, %%eax \n\t"
|
|
" js 1b \n\t"
|
|
"movq %%mm3, %%mm0 \n\t"
|
|
"psrlq $32, %%mm3 \n\t"
|
|
PMAXW(%%mm0, %%mm3)
|
|
"movq %%mm3, %%mm0 \n\t"
|
|
"psrlq $16, %%mm3 \n\t"
|
|
PMAXW(%%mm0, %%mm3)
|
|
"movd %%mm3, %%eax \n\t"
|
|
"movzbl %%al, %%eax \n\t" // last_non_zero_p1
|
|
: "+a" (last_non_zero_p1)
|
|
: "r" (block+64), "r" (qmat+64), "r" (bias+64),
|
|
"r" (inv_zigzag_direct16+64), "r" (temp_block+64)
|
|
);
|
|
// note the asm is split cuz gcc doesnt like that many operands ...
|
|
asm volatile(
|
|
"movd %1, %%mm1 \n\t" // max_qcoeff
|
|
SPREADW(%%mm1)
|
|
"psubusw %%mm1, %%mm4 \n\t"
|
|
"packuswb %%mm4, %%mm4 \n\t"
|
|
"movd %%mm4, %0 \n\t" // *overflow
|
|
: "=g" (*overflow)
|
|
: "g" (s->max_qcoeff)
|
|
);
|
|
}
|
|
|
|
if(s->mb_intra) temp_block[0]= level; //FIXME move afer permute
|
|
|
|
// last_non_zero_p1=64;
|
|
/* permute for IDCT */
|
|
asm volatile(
|
|
"movl %0, %%eax \n\t"
|
|
"pushl %%ebp \n\t"
|
|
"movl %%esp, " MANGLE(esp_temp) "\n\t"
|
|
"1: \n\t"
|
|
"movzbl (%1, %%eax), %%ebx \n\t"
|
|
"movzbl 1(%1, %%eax), %%ebp \n\t"
|
|
"movw (%2, %%ebx, 2), %%cx \n\t"
|
|
"movw (%2, %%ebp, 2), %%sp \n\t"
|
|
"movzbl " MANGLE(permutation) "(%%ebx), %%ebx\n\t"
|
|
"movzbl " MANGLE(permutation) "(%%ebp), %%ebp\n\t"
|
|
"movw %%cx, (%3, %%ebx, 2) \n\t"
|
|
"movw %%sp, (%3, %%ebp, 2) \n\t"
|
|
"addl $2, %%eax \n\t"
|
|
" js 1b \n\t"
|
|
"movl " MANGLE(esp_temp) ", %%esp\n\t"
|
|
"popl %%ebp \n\t"
|
|
:
|
|
: "g" (-last_non_zero_p1), "d" (zigzag_direct_noperm+last_non_zero_p1), "S" (temp_block), "D" (block)
|
|
: "%eax", "%ebx", "%ecx"
|
|
);
|
|
/*
|
|
for(i=0; i<last_non_zero_p1; i++)
|
|
{
|
|
int j= zigzag_direct_noperm[i];
|
|
block[block_permute_op(j)]= temp_block[j];
|
|
}
|
|
*/
|
|
//block_permute(block);
|
|
|
|
return last_non_zero_p1 - 1;
|
|
}
|