Statistics
| Branch: | Revision:

ffmpeg / libavcodec / arm / dsputil_iwmmxt.c @ 0115b3ea

History | View | Annotate | Download (8.68 KB)

1 6ad1fa5a Bernhard Rosenkränzer
/*
2
 * iWMMXt optimized DSP utils
3
 * Copyright (c) 2004 AGAWA Koji
4
 *
5 b78e7197 Diego Biurrun
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8 6ad1fa5a Bernhard Rosenkränzer
 * modify it under the terms of the GNU Lesser General Public
9
 * License as published by the Free Software Foundation; either
10 b78e7197 Diego Biurrun
 * version 2.1 of the License, or (at your option) any later version.
11 6ad1fa5a Bernhard Rosenkränzer
 *
12 b78e7197 Diego Biurrun
 * FFmpeg is distributed in the hope that it will be useful,
13 6ad1fa5a Bernhard Rosenkränzer
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16
 *
17
 * You should have received a copy of the GNU Lesser General Public
18 b78e7197 Diego Biurrun
 * License along with FFmpeg; if not, write to the Free Software
19 5509bffa Diego Biurrun
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 6ad1fa5a Bernhard Rosenkränzer
 */
21
22 245976da Diego Biurrun
#include "libavcodec/dsputil.h"
23 6ad1fa5a Bernhard Rosenkränzer
24
#define DEF(x, y) x ## _no_rnd_ ## y ##_iwmmxt
25 be449fca Diego Pettenò
#define SET_RND(regd)  __asm__ volatile ("mov r12, #1 \n\t tbcsth " #regd ", r12":::"r12");
26 6ad1fa5a Bernhard Rosenkränzer
#define WAVG2B "wavg2b"
27 782fc0c3 Diego Pettenò
#include "dsputil_iwmmxt_rnd_template.c"
28 6ad1fa5a Bernhard Rosenkränzer
#undef DEF
29
#undef SET_RND
30
#undef WAVG2B
31
32
#define DEF(x, y) x ## _ ## y ##_iwmmxt
33 be449fca Diego Pettenò
#define SET_RND(regd)  __asm__ volatile ("mov r12, #2 \n\t tbcsth " #regd ", r12":::"r12");
34 6ad1fa5a Bernhard Rosenkränzer
#define WAVG2B "wavg2br"
35 782fc0c3 Diego Pettenò
#include "dsputil_iwmmxt_rnd_template.c"
36 6ad1fa5a Bernhard Rosenkränzer
#undef DEF
37
#undef SET_RND
38
#undef WAVG2BR
39
40
// need scheduling
41
#define OP(AVG)                                         \
42 be449fca Diego Pettenò
    __asm__ volatile (                                      \
43 6ad1fa5a Bernhard Rosenkränzer
        /* alignment */                                 \
44
        "and r12, %[pixels], #7 \n\t"                   \
45
        "bic %[pixels], %[pixels], #7 \n\t"             \
46
        "tmcr wcgr1, r12 \n\t"                          \
47
                                                        \
48
        "wldrd wr0, [%[pixels]] \n\t"                   \
49
        "wldrd wr1, [%[pixels], #8] \n\t"               \
50
        "add %[pixels], %[pixels], %[line_size] \n\t"   \
51
        "walignr1 wr4, wr0, wr1 \n\t"                   \
52
                                                        \
53
        "1: \n\t"                                       \
54
                                                        \
55
        "wldrd wr2, [%[pixels]] \n\t"                   \
56
        "wldrd wr3, [%[pixels], #8] \n\t"               \
57
        "add %[pixels], %[pixels], %[line_size] \n\t"   \
58
        "pld [%[pixels]] \n\t"                          \
59
        "walignr1 wr5, wr2, wr3 \n\t"                   \
60
        AVG " wr6, wr4, wr5 \n\t"                       \
61
        "wstrd wr6, [%[block]] \n\t"                    \
62
        "add %[block], %[block], %[line_size] \n\t"     \
63
                                                        \
64
        "wldrd wr0, [%[pixels]] \n\t"                   \
65
        "wldrd wr1, [%[pixels], #8] \n\t"               \
66
        "add %[pixels], %[pixels], %[line_size] \n\t"   \
67
        "walignr1 wr4, wr0, wr1 \n\t"                   \
68
        "pld [%[pixels]] \n\t"                          \
69
        AVG " wr6, wr4, wr5 \n\t"                       \
70
        "wstrd wr6, [%[block]] \n\t"                    \
71
        "add %[block], %[block], %[line_size] \n\t"     \
72
                                                        \
73
        "subs %[h], %[h], #2 \n\t"                      \
74
        "bne 1b \n\t"                                   \
75
        : [block]"+r"(block), [pixels]"+r"(pixels), [h]"+r"(h)  \
76
        : [line_size]"r"(line_size) \
77
        : "memory", "r12");
78
void put_pixels8_y2_iwmmxt(uint8_t *block, const uint8_t *pixels, const int line_size, int h)
79
{
80
    OP("wavg2br");
81
}
82
void put_no_rnd_pixels8_y2_iwmmxt(uint8_t *block, const uint8_t *pixels, const int line_size, int h)
83
{
84
    OP("wavg2b");
85
}
86
#undef OP
87
88
void add_pixels_clamped_iwmmxt(const DCTELEM *block, uint8_t *pixels, int line_size)
89
{
90
    uint8_t *pixels2 = pixels + line_size;
91
92 be449fca Diego Pettenò
    __asm__ volatile (
93 6ad1fa5a Bernhard Rosenkränzer
        "mov            r12, #4                 \n\t"
94
        "1:                                     \n\t"
95
        "pld            [%[pixels], %[line_size2]]              \n\t"
96
        "pld            [%[pixels2], %[line_size2]]             \n\t"
97
        "wldrd          wr4, [%[pixels]]        \n\t"
98
        "wldrd          wr5, [%[pixels2]]       \n\t"
99
        "pld            [%[block], #32]         \n\t"
100
        "wunpckelub     wr6, wr4                \n\t"
101
        "wldrd          wr0, [%[block]]         \n\t"
102
        "wunpckehub     wr7, wr4                \n\t"
103
        "wldrd          wr1, [%[block], #8]     \n\t"
104
        "wunpckelub     wr8, wr5                \n\t"
105
        "wldrd          wr2, [%[block], #16]    \n\t"
106
        "wunpckehub     wr9, wr5                \n\t"
107
        "wldrd          wr3, [%[block], #24]    \n\t"
108
        "add            %[block], %[block], #32 \n\t"
109
        "waddhss        wr10, wr0, wr6          \n\t"
110
        "waddhss        wr11, wr1, wr7          \n\t"
111
        "waddhss        wr12, wr2, wr8          \n\t"
112
        "waddhss        wr13, wr3, wr9          \n\t"
113
        "wpackhus       wr14, wr10, wr11        \n\t"
114
        "wpackhus       wr15, wr12, wr13        \n\t"
115
        "wstrd          wr14, [%[pixels]]       \n\t"
116
        "add            %[pixels], %[pixels], %[line_size2]     \n\t"
117
        "subs           r12, r12, #1            \n\t"
118
        "wstrd          wr15, [%[pixels2]]      \n\t"
119
        "add            %[pixels2], %[pixels2], %[line_size2]   \n\t"
120
        "bne            1b                      \n\t"
121
        : [block]"+r"(block), [pixels]"+r"(pixels), [pixels2]"+r"(pixels2)
122
        : [line_size2]"r"(line_size << 1)
123
        : "cc", "memory", "r12");
124
}
125
126 e8d00417 David Bateman
static void clear_blocks_iwmmxt(DCTELEM *blocks)
127
{
128 be449fca Diego Pettenò
    __asm__ volatile(
129 e8d00417 David Bateman
                "wzero wr0                      \n\t"
130
                "mov r1, #(128 * 6 / 32)        \n\t"
131
                "1:                             \n\t"
132
                "wstrd wr0, [%0]                \n\t"
133
                "wstrd wr0, [%0, #8]            \n\t"
134
                "wstrd wr0, [%0, #16]           \n\t"
135
                "wstrd wr0, [%0, #24]           \n\t"
136
                "subs r1, r1, #1                \n\t"
137
                "add %0, %0, #32                \n\t"
138
                "bne 1b                         \n\t"
139
                : "+r"(blocks)
140
                :
141
                : "r1"
142
        );
143
}
144
145 6ad1fa5a Bernhard Rosenkränzer
static void nop(uint8_t *block, const uint8_t *pixels, int line_size, int h)
146
{
147
    return;
148
}
149
150 f88e7c83 Tim Chick
/* A run time test is not simple. If this file is compiled in
151
 * then we should install the functions
152
 */
153 82d1605f Dominik Mierzejewski
int mm_flags = FF_MM_IWMMXT; /* multimedia extension flags */
154 eba9ae3c Gildas Bazin
155 55c0e1e6 Måns Rullgård
void ff_dsputil_init_iwmmxt(DSPContext* c, AVCodecContext *avctx)
156 6ad1fa5a Bernhard Rosenkränzer
{
157 eba9ae3c Gildas Bazin
    if (avctx->dsp_mask) {
158 bb270c08 Diego Biurrun
        if (avctx->dsp_mask & FF_MM_FORCE)
159 486497e0 Måns Rullgård
            mm_flags |= (avctx->dsp_mask & 0xffff);
160 bb270c08 Diego Biurrun
        else
161 486497e0 Måns Rullgård
            mm_flags &= ~(avctx->dsp_mask & 0xffff);
162 eba9ae3c Gildas Bazin
    }
163
164 82d1605f Dominik Mierzejewski
    if (!(mm_flags & FF_MM_IWMMXT)) return;
165 eba9ae3c Gildas Bazin
166 6ad1fa5a Bernhard Rosenkränzer
    c->add_pixels_clamped = add_pixels_clamped_iwmmxt;
167
168 e8d00417 David Bateman
    c->clear_blocks = clear_blocks_iwmmxt;
169
170 6ad1fa5a Bernhard Rosenkränzer
    c->put_pixels_tab[0][0] = put_pixels16_iwmmxt;
171
    c->put_pixels_tab[0][1] = put_pixels16_x2_iwmmxt;
172
    c->put_pixels_tab[0][2] = put_pixels16_y2_iwmmxt;
173
    c->put_pixels_tab[0][3] = put_pixels16_xy2_iwmmxt;
174
    c->put_no_rnd_pixels_tab[0][0] = put_pixels16_iwmmxt;
175
    c->put_no_rnd_pixels_tab[0][1] = put_no_rnd_pixels16_x2_iwmmxt;
176
    c->put_no_rnd_pixels_tab[0][2] = put_no_rnd_pixels16_y2_iwmmxt;
177
    c->put_no_rnd_pixels_tab[0][3] = put_no_rnd_pixels16_xy2_iwmmxt;
178
179
    c->put_pixels_tab[1][0] = put_pixels8_iwmmxt;
180
    c->put_pixels_tab[1][1] = put_pixels8_x2_iwmmxt;
181
    c->put_pixels_tab[1][2] = put_pixels8_y2_iwmmxt;
182
    c->put_pixels_tab[1][3] = put_pixels8_xy2_iwmmxt;
183
    c->put_no_rnd_pixels_tab[1][0] = put_pixels8_iwmmxt;
184
    c->put_no_rnd_pixels_tab[1][1] = put_no_rnd_pixels8_x2_iwmmxt;
185
    c->put_no_rnd_pixels_tab[1][2] = put_no_rnd_pixels8_y2_iwmmxt;
186
    c->put_no_rnd_pixels_tab[1][3] = put_no_rnd_pixels8_xy2_iwmmxt;
187
188
    c->avg_pixels_tab[0][0] = avg_pixels16_iwmmxt;
189
    c->avg_pixels_tab[0][1] = avg_pixels16_x2_iwmmxt;
190
    c->avg_pixels_tab[0][2] = avg_pixels16_y2_iwmmxt;
191
    c->avg_pixels_tab[0][3] = avg_pixels16_xy2_iwmmxt;
192
    c->avg_no_rnd_pixels_tab[0][0] = avg_pixels16_iwmmxt;
193
    c->avg_no_rnd_pixels_tab[0][1] = avg_no_rnd_pixels16_x2_iwmmxt;
194
    c->avg_no_rnd_pixels_tab[0][2] = avg_no_rnd_pixels16_y2_iwmmxt;
195
    c->avg_no_rnd_pixels_tab[0][3] = avg_no_rnd_pixels16_xy2_iwmmxt;
196
197
    c->avg_pixels_tab[1][0] = avg_pixels8_iwmmxt;
198
    c->avg_pixels_tab[1][1] = avg_pixels8_x2_iwmmxt;
199
    c->avg_pixels_tab[1][2] = avg_pixels8_y2_iwmmxt;
200
    c->avg_pixels_tab[1][3] = avg_pixels8_xy2_iwmmxt;
201
    c->avg_no_rnd_pixels_tab[1][0] = avg_no_rnd_pixels8_iwmmxt;
202
    c->avg_no_rnd_pixels_tab[1][1] = avg_no_rnd_pixels8_x2_iwmmxt;
203
    c->avg_no_rnd_pixels_tab[1][2] = avg_no_rnd_pixels8_y2_iwmmxt;
204
    c->avg_no_rnd_pixels_tab[1][3] = avg_no_rnd_pixels8_xy2_iwmmxt;
205
}