mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
224 lines
7.9 KiB
224 lines
7.9 KiB
/* |
|
Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at> |
|
|
|
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., 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){ |
|
|
|
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; |
|
}
|
|
|