1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/libavcodec/arm/mpegvideo_iwmmxt.c	Tue Sep 25 15:55:33 2012 +0200
     1.3 @@ -0,0 +1,120 @@
     1.4 +/*
     1.5 + * copyright (c) 2004 AGAWA Koji
     1.6 + *
     1.7 + * This file is part of FFmpeg.
     1.8 + *
     1.9 + * FFmpeg is free software; you can redistribute it and/or
    1.10 + * modify it under the terms of the GNU Lesser General Public
    1.11 + * License as published by the Free Software Foundation; either
    1.12 + * version 2.1 of the License, or (at your option) any later version.
    1.13 + *
    1.14 + * FFmpeg is distributed in the hope that it will be useful,
    1.15 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.16 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    1.17 + * Lesser General Public License for more details.
    1.18 + *
    1.19 + * You should have received a copy of the GNU Lesser General Public
    1.20 + * License along with FFmpeg; if not, write to the Free Software
    1.21 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
    1.22 + */
    1.23 +
    1.24 +#include "libavcodec/avcodec.h"
    1.25 +#include "libavcodec/dsputil.h"
    1.26 +#include "libavcodec/mpegvideo.h"
    1.27 +#include "mpegvideo_arm.h"
    1.28 +
    1.29 +static void dct_unquantize_h263_intra_iwmmxt(MpegEncContext *s,
    1.30 +                                             DCTELEM *block, int n, int qscale)
    1.31 +{
    1.32 +    int level, qmul, qadd;
    1.33 +    int nCoeffs;
    1.34 +    DCTELEM *block_orig = block;
    1.35 +
    1.36 +    assert(s->block_last_index[n]>=0);
    1.37 +
    1.38 +    qmul = qscale << 1;
    1.39 +
    1.40 +    if (!s->h263_aic) {
    1.41 +        if (n < 4)
    1.42 +            level = block[0] * s->y_dc_scale;
    1.43 +        else
    1.44 +            level = block[0] * s->c_dc_scale;
    1.45 +        qadd = (qscale - 1) | 1;
    1.46 +    }else{
    1.47 +        qadd = 0;
    1.48 +        level = block[0];
    1.49 +    }
    1.50 +    if(s->ac_pred)
    1.51 +        nCoeffs=63;
    1.52 +    else
    1.53 +        nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
    1.54 +
    1.55 +    __asm__ volatile (
    1.56 +/*      "movd %1, %%mm6                 \n\t" //qmul */
    1.57 +/*      "packssdw %%mm6, %%mm6          \n\t" */
    1.58 +/*      "packssdw %%mm6, %%mm6          \n\t" */
    1.59 +        "tbcsth wr6, %[qmul]            \n\t"
    1.60 +/*      "movd %2, %%mm5                 \n\t" //qadd */
    1.61 +/*      "packssdw %%mm5, %%mm5          \n\t" */
    1.62 +/*      "packssdw %%mm5, %%mm5          \n\t" */
    1.63 +        "tbcsth wr5, %[qadd]            \n\t"
    1.64 +        "wzero wr7                      \n\t" /* "pxor %%mm7, %%mm7             \n\t" */
    1.65 +        "wzero wr4                      \n\t" /* "pxor %%mm4, %%mm4             \n\t" */
    1.66 +        "wsubh wr7, wr5, wr7            \n\t" /* "psubw %%mm5, %%mm7            \n\t" */
    1.67 +        "1:                             \n\t"
    1.68 +        "wldrd wr2, [%[block]]          \n\t" /* "movq (%0, %3), %%mm0          \n\t" */
    1.69 +        "wldrd wr3, [%[block], #8]      \n\t" /* "movq 8(%0, %3), %%mm1         \n\t" */
    1.70 +        "wmulsl wr0, wr6, wr2           \n\t" /* "pmullw %%mm6, %%mm0           \n\t" */
    1.71 +        "wmulsl wr1, wr6, wr3           \n\t" /* "pmullw %%mm6, %%mm1           \n\t" */
    1.72 +/*      "movq (%0, %3), %%mm2           \n\t" */
    1.73 +/*      "movq 8(%0, %3), %%mm3          \n\t" */
    1.74 +        "wcmpgtsh wr2, wr4, wr2         \n\t" /* "pcmpgtw %%mm4, %%mm2          \n\t" // block[i] < 0 ? -1 : 0 */
    1.75 +        "wcmpgtsh wr3, wr4, wr2         \n\t" /* "pcmpgtw %%mm4, %%mm3          \n\t" // block[i] < 0 ? -1 : 0 */
    1.76 +        "wxor wr0, wr2, wr0             \n\t" /* "pxor %%mm2, %%mm0             \n\t" */
    1.77 +        "wxor wr1, wr3, wr1             \n\t" /* "pxor %%mm3, %%mm1             \n\t" */
    1.78 +        "waddh wr0, wr7, wr0            \n\t" /* "paddw %%mm7, %%mm0            \n\t" */
    1.79 +        "waddh wr1, wr7, wr1            \n\t" /* "paddw %%mm7, %%mm1            \n\t" */
    1.80 +        "wxor wr2, wr0, wr2             \n\t" /* "pxor %%mm0, %%mm2             \n\t" */
    1.81 +        "wxor wr3, wr1, wr3             \n\t" /* "pxor %%mm1, %%mm3             \n\t" */
    1.82 +        "wcmpeqh wr0, wr7, wr0          \n\t" /* "pcmpeqw %%mm7, %%mm0          \n\t" // block[i] == 0 ? -1 : 0 */
    1.83 +        "wcmpeqh wr1, wr7, wr1          \n\t" /* "pcmpeqw %%mm7, %%mm1          \n\t" // block[i] == 0 ? -1 : 0 */
    1.84 +        "wandn wr0, wr2, wr0            \n\t" /* "pandn %%mm2, %%mm0            \n\t" */
    1.85 +        "wandn wr1, wr3, wr1            \n\t" /* "pandn %%mm3, %%mm1            \n\t" */
    1.86 +        "wstrd wr0, [%[block]]          \n\t" /* "movq %%mm0, (%0, %3)          \n\t" */
    1.87 +        "wstrd wr1, [%[block], #8]      \n\t" /* "movq %%mm1, 8(%0, %3)         \n\t" */
    1.88 +        "add %[block], %[block], #16    \n\t" /* "addl $16, %3                  \n\t" */
    1.89 +        "subs %[i], %[i], #1            \n\t"
    1.90 +        "bne 1b                         \n\t" /* "jng 1b                                \n\t" */
    1.91 +        :[block]"+r"(block)
    1.92 +        :[i]"r"((nCoeffs + 8) / 8), [qmul]"r"(qmul), [qadd]"r"(qadd)
    1.93 +        :"memory");
    1.94 +
    1.95 +    block_orig[0] = level;
    1.96 +}
    1.97 +
    1.98 +#if 0
    1.99 +static void dct_unquantize_h263_inter_iwmmxt(MpegEncContext *s,
   1.100 +                                             DCTELEM *block, int n, int qscale)
   1.101 +{
   1.102 +    int nCoeffs;
   1.103 +
   1.104 +    assert(s->block_last_index[n]>=0);
   1.105 +
   1.106 +    if(s->ac_pred)
   1.107 +        nCoeffs=63;
   1.108 +    else
   1.109 +        nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
   1.110 +
   1.111 +    ippiQuantInvInter_Compact_H263_16s_I(block, nCoeffs+1, qscale);
   1.112 +}
   1.113 +#endif
   1.114 +
   1.115 +void MPV_common_init_iwmmxt(MpegEncContext *s)
   1.116 +{
   1.117 +    if (!(mm_flags & FF_MM_IWMMXT)) return;
   1.118 +
   1.119 +    s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_iwmmxt;
   1.120 +#if 0
   1.121 +    s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_iwmmxt;
   1.122 +#endif
   1.123 +}