mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
100 lines
4.2 KiB
C
100 lines
4.2 KiB
C
#include "../dsputil.h"
|
|
#include "../mpegvideo.h"
|
|
#include "../avcodec.h"
|
|
|
|
static void dct_unquantize_h263_intra_iwmmxt(MpegEncContext *s,
|
|
DCTELEM *block, int n, int qscale)
|
|
{
|
|
int level, qmul, qadd;
|
|
int nCoeffs;
|
|
DCTELEM *block_orig = block;
|
|
|
|
assert(s->block_last_index[n]>=0);
|
|
|
|
qmul = qscale << 1;
|
|
|
|
if (!s->h263_aic) {
|
|
if (n < 4)
|
|
level = block[0] * s->y_dc_scale;
|
|
else
|
|
level = block[0] * s->c_dc_scale;
|
|
qadd = (qscale - 1) | 1;
|
|
}else{
|
|
qadd = 0;
|
|
level = block[0];
|
|
}
|
|
if(s->ac_pred)
|
|
nCoeffs=63;
|
|
else
|
|
nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
|
|
|
|
__asm__ __volatile__ (
|
|
/* "movd %1, %%mm6 \n\t" //qmul */
|
|
/* "packssdw %%mm6, %%mm6 \n\t" */
|
|
/* "packssdw %%mm6, %%mm6 \n\t" */
|
|
"tbcsth wr6, %[qmul] \n\t"
|
|
/* "movd %2, %%mm5 \n\t" //qadd */
|
|
/* "packssdw %%mm5, %%mm5 \n\t" */
|
|
/* "packssdw %%mm5, %%mm5 \n\t" */
|
|
"tbcsth wr5, %[qadd] \n\t"
|
|
"wzero wr7 \n\t" /* "pxor %%mm7, %%mm7 \n\t" */
|
|
"wzero wr4 \n\t" /* "pxor %%mm4, %%mm4 \n\t" */
|
|
"wsubh wr7, wr5, wr7 \n\t" /* "psubw %%mm5, %%mm7 \n\t" */
|
|
"1: \n\t"
|
|
"wldrd wr2, [%[block]] \n\t" /* "movq (%0, %3), %%mm0 \n\t" */
|
|
"wldrd wr3, [%[block], #8] \n\t" /* "movq 8(%0, %3), %%mm1 \n\t" */
|
|
"wmulsl wr0, wr6, wr2 \n\t" /* "pmullw %%mm6, %%mm0 \n\t" */
|
|
"wmulsl wr1, wr6, wr3 \n\t" /* "pmullw %%mm6, %%mm1 \n\t" */
|
|
/* "movq (%0, %3), %%mm2 \n\t" */
|
|
/* "movq 8(%0, %3), %%mm3 \n\t" */
|
|
"wcmpgtsh wr2, wr4, wr2 \n\t" /* "pcmpgtw %%mm4, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 */
|
|
"wcmpgtsh wr3, wr4, wr2 \n\t" /* "pcmpgtw %%mm4, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 */
|
|
"wxor wr0, wr2, wr0 \n\t" /* "pxor %%mm2, %%mm0 \n\t" */
|
|
"wxor wr1, wr3, wr1 \n\t" /* "pxor %%mm3, %%mm1 \n\t" */
|
|
"waddh wr0, wr7, wr0 \n\t" /* "paddw %%mm7, %%mm0 \n\t" */
|
|
"waddh wr1, wr7, wr1 \n\t" /* "paddw %%mm7, %%mm1 \n\t" */
|
|
"wxor wr2, wr0, wr2 \n\t" /* "pxor %%mm0, %%mm2 \n\t" */
|
|
"wxor wr3, wr1, wr3 \n\t" /* "pxor %%mm1, %%mm3 \n\t" */
|
|
"wcmpeqh wr0, wr7, wr0 \n\t" /* "pcmpeqw %%mm7, %%mm0 \n\t" // block[i] == 0 ? -1 : 0 */
|
|
"wcmpeqh wr1, wr7, wr1 \n\t" /* "pcmpeqw %%mm7, %%mm1 \n\t" // block[i] == 0 ? -1 : 0 */
|
|
"wandn wr0, wr2, wr0 \n\t" /* "pandn %%mm2, %%mm0 \n\t" */
|
|
"wandn wr1, wr3, wr1 \n\t" /* "pandn %%mm3, %%mm1 \n\t" */
|
|
"wstrd wr0, [%[block]] \n\t" /* "movq %%mm0, (%0, %3) \n\t" */
|
|
"wstrd wr1, [%[block], #8] \n\t" /* "movq %%mm1, 8(%0, %3) \n\t" */
|
|
"add %[block], %[block], #16 \n\t" /* "addl $16, %3 \n\t" */
|
|
"subs %[i], %[i], #1 \n\t"
|
|
"bne 1b \n\t" /* "jng 1b \n\t" */
|
|
:[block]"+r"(block)
|
|
:[i]"r"((nCoeffs + 8) / 8), [qmul]"r"(qmul), [qadd]"r"(qadd)
|
|
:"memory");
|
|
|
|
block_orig[0] = level;
|
|
}
|
|
|
|
#if 0
|
|
static void dct_unquantize_h263_inter_iwmmxt(MpegEncContext *s,
|
|
DCTELEM *block, int n, int qscale)
|
|
{
|
|
int nCoeffs;
|
|
|
|
assert(s->block_last_index[n]>=0);
|
|
|
|
if(s->ac_pred)
|
|
nCoeffs=63;
|
|
else
|
|
nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
|
|
|
|
ippiQuantInvInter_Compact_H263_16s_I(block, nCoeffs+1, qscale);
|
|
}
|
|
#endif
|
|
|
|
void MPV_common_init_iwmmxt(MpegEncContext *s)
|
|
{
|
|
if (!(mm_flags & MM_IWMMXT)) return;
|
|
|
|
s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_iwmmxt;
|
|
#if 0
|
|
s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_iwmmxt;
|
|
#endif
|
|
}
|