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comparison libavcodec/arm/mpegvideo_iwmmxt.c @ 9:ea1ba68cf0ed

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update to match api changes + add sscc produced source
author Nina Engelhardt <nengel@mailbox.tu-berlin.de>
date Wed, 05 Jun 2013 14:43:26 +0200
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1 /*
2 * copyright (c) 2004 AGAWA Koji
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavcodec/avcodec.h"
22 #include "libavcodec/dsputil.h"
23 #include "libavcodec/mpegvideo.h"
24 #include "mpegvideo_arm.h"
25
26 static void dct_unquantize_h263_intra_iwmmxt(MpegEncContext *s,
27 DCTELEM *block, int n, int qscale)
28 {
29 int level, qmul, qadd;
30 int nCoeffs;
31 DCTELEM *block_orig = block;
32
33 assert(s->block_last_index[n]>=0);
34
35 qmul = qscale << 1;
36
37 if (!s->h263_aic) {
38 if (n < 4)
39 level = block[0] * s->y_dc_scale;
40 else
41 level = block[0] * s->c_dc_scale;
42 qadd = (qscale - 1) | 1;
43 }else{
44 qadd = 0;
45 level = block[0];
46 }
47 if(s->ac_pred)
48 nCoeffs=63;
49 else
50 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
51
52 __asm__ volatile (
53 /* "movd %1, %%mm6 \n\t" //qmul */
54 /* "packssdw %%mm6, %%mm6 \n\t" */
55 /* "packssdw %%mm6, %%mm6 \n\t" */
56 "tbcsth wr6, %[qmul] \n\t"
57 /* "movd %2, %%mm5 \n\t" //qadd */
58 /* "packssdw %%mm5, %%mm5 \n\t" */
59 /* "packssdw %%mm5, %%mm5 \n\t" */
60 "tbcsth wr5, %[qadd] \n\t"
61 "wzero wr7 \n\t" /* "pxor %%mm7, %%mm7 \n\t" */
62 "wzero wr4 \n\t" /* "pxor %%mm4, %%mm4 \n\t" */
63 "wsubh wr7, wr5, wr7 \n\t" /* "psubw %%mm5, %%mm7 \n\t" */
64 "1: \n\t"
65 "wldrd wr2, [%[block]] \n\t" /* "movq (%0, %3), %%mm0 \n\t" */
66 "wldrd wr3, [%[block], #8] \n\t" /* "movq 8(%0, %3), %%mm1 \n\t" */
67 "wmulsl wr0, wr6, wr2 \n\t" /* "pmullw %%mm6, %%mm0 \n\t" */
68 "wmulsl wr1, wr6, wr3 \n\t" /* "pmullw %%mm6, %%mm1 \n\t" */
69 /* "movq (%0, %3), %%mm2 \n\t" */
70 /* "movq 8(%0, %3), %%mm3 \n\t" */
71 "wcmpgtsh wr2, wr4, wr2 \n\t" /* "pcmpgtw %%mm4, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 */
72 "wcmpgtsh wr3, wr4, wr2 \n\t" /* "pcmpgtw %%mm4, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 */
73 "wxor wr0, wr2, wr0 \n\t" /* "pxor %%mm2, %%mm0 \n\t" */
74 "wxor wr1, wr3, wr1 \n\t" /* "pxor %%mm3, %%mm1 \n\t" */
75 "waddh wr0, wr7, wr0 \n\t" /* "paddw %%mm7, %%mm0 \n\t" */
76 "waddh wr1, wr7, wr1 \n\t" /* "paddw %%mm7, %%mm1 \n\t" */
77 "wxor wr2, wr0, wr2 \n\t" /* "pxor %%mm0, %%mm2 \n\t" */
78 "wxor wr3, wr1, wr3 \n\t" /* "pxor %%mm1, %%mm3 \n\t" */
79 "wcmpeqh wr0, wr7, wr0 \n\t" /* "pcmpeqw %%mm7, %%mm0 \n\t" // block[i] == 0 ? -1 : 0 */
80 "wcmpeqh wr1, wr7, wr1 \n\t" /* "pcmpeqw %%mm7, %%mm1 \n\t" // block[i] == 0 ? -1 : 0 */
81 "wandn wr0, wr2, wr0 \n\t" /* "pandn %%mm2, %%mm0 \n\t" */
82 "wandn wr1, wr3, wr1 \n\t" /* "pandn %%mm3, %%mm1 \n\t" */
83 "wstrd wr0, [%[block]] \n\t" /* "movq %%mm0, (%0, %3) \n\t" */
84 "wstrd wr1, [%[block], #8] \n\t" /* "movq %%mm1, 8(%0, %3) \n\t" */
85 "add %[block], %[block], #16 \n\t" /* "addl $16, %3 \n\t" */
86 "subs %[i], %[i], #1 \n\t"
87 "bne 1b \n\t" /* "jng 1b \n\t" */
88 :[block]"+r"(block)
89 :[i]"r"((nCoeffs + 8) / 8), [qmul]"r"(qmul), [qadd]"r"(qadd)
90 :"memory");
91
92 block_orig[0] = level;
93 }
94
95 #if 0
96 static void dct_unquantize_h263_inter_iwmmxt(MpegEncContext *s,
97 DCTELEM *block, int n, int qscale)
98 {
99 int nCoeffs;
100
101 assert(s->block_last_index[n]>=0);
102
103 if(s->ac_pred)
104 nCoeffs=63;
105 else
106 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
107
108 ippiQuantInvInter_Compact_H263_16s_I(block, nCoeffs+1, qscale);
109 }
110 #endif
111
112 void MPV_common_init_iwmmxt(MpegEncContext *s)
113 {
114 if (!(mm_flags & FF_MM_IWMMXT)) return;
115
116 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_iwmmxt;
117 #if 0
118 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_iwmmxt;
119 #endif
120 }