1/*
2 * Copyright (c) 2009 David Conrad <lessen42@gmail.com>
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 <stdint.h>
22
23#include "libavutil/attributes.h"
24#include "libavutil/cpu.h"
25#include "libavutil/x86/cpu.h"
26#include "libavutil/x86/asm.h"
27#include "libavcodec/avcodec.h"
28#include "libavcodec/vp3dsp.h"
29#include "config.h"
30
31void ff_vp3_idct_put_mmx(uint8_t *dest, int line_size, int16_t *block);
32void ff_vp3_idct_add_mmx(uint8_t *dest, int line_size, int16_t *block);
33
34void ff_vp3_idct_put_sse2(uint8_t *dest, int line_size, int16_t *block);
35void ff_vp3_idct_add_sse2(uint8_t *dest, int line_size, int16_t *block);
36
37void ff_vp3_idct_dc_add_mmxext(uint8_t *dest, int line_size,
38                               int16_t *block);
39
40void ff_vp3_v_loop_filter_mmxext(uint8_t *src, int stride,
41                                 int *bounding_values);
42void ff_vp3_h_loop_filter_mmxext(uint8_t *src, int stride,
43                                 int *bounding_values);
44
45#if HAVE_MMX_INLINE
46
47#define MOVQ_BFE(regd)                                  \
48    __asm__ volatile (                                  \
49        "pcmpeqd %%"#regd", %%"#regd"   \n\t"           \
50        "paddb   %%"#regd", %%"#regd"   \n\t" ::)
51
52#define PAVGBP_MMX_NO_RND(rega, regb, regr,  regc, regd, regp)   \
53    "movq  "#rega", "#regr"             \n\t"                    \
54    "movq  "#regc", "#regp"             \n\t"                    \
55    "pand  "#regb", "#regr"             \n\t"                    \
56    "pand  "#regd", "#regp"             \n\t"                    \
57    "pxor  "#rega", "#regb"             \n\t"                    \
58    "pxor  "#regc", "#regd"             \n\t"                    \
59    "pand    %%mm6, "#regb"             \n\t"                    \
60    "pand    %%mm6, "#regd"             \n\t"                    \
61    "psrlq      $1, "#regb"             \n\t"                    \
62    "psrlq      $1, "#regd"             \n\t"                    \
63    "paddb "#regb", "#regr"             \n\t"                    \
64    "paddb "#regd", "#regp"             \n\t"
65
66#if HAVE_6REGS
67static void put_vp_no_rnd_pixels8_l2_mmx(uint8_t *dst, const uint8_t *a, const uint8_t *b, ptrdiff_t stride, int h)
68{
69//    START_TIMER
70    MOVQ_BFE(mm6);
71    __asm__ volatile(
72        "1:                             \n\t"
73        "movq   (%1), %%mm0             \n\t"
74        "movq   (%2), %%mm1             \n\t"
75        "movq   (%1,%4), %%mm2          \n\t"
76        "movq   (%2,%4), %%mm3          \n\t"
77        PAVGBP_MMX_NO_RND(%%mm0, %%mm1, %%mm4,   %%mm2, %%mm3, %%mm5)
78        "movq   %%mm4, (%3)             \n\t"
79        "movq   %%mm5, (%3,%4)          \n\t"
80
81        "movq   (%1,%4,2), %%mm0        \n\t"
82        "movq   (%2,%4,2), %%mm1        \n\t"
83        "movq   (%1,%5), %%mm2          \n\t"
84        "movq   (%2,%5), %%mm3          \n\t"
85        "lea    (%1,%4,4), %1           \n\t"
86        "lea    (%2,%4,4), %2           \n\t"
87        PAVGBP_MMX_NO_RND(%%mm0, %%mm1, %%mm4,   %%mm2, %%mm3, %%mm5)
88        "movq   %%mm4, (%3,%4,2)        \n\t"
89        "movq   %%mm5, (%3,%5)          \n\t"
90        "lea    (%3,%4,4), %3           \n\t"
91        "subl   $4, %0                  \n\t"
92        "jnz    1b                      \n\t"
93        :"+r"(h), "+r"(a), "+r"(b), "+r"(dst)
94        :"r"((x86_reg)stride), "r"((x86_reg)3L*stride)
95        :"memory");
96//    STOP_TIMER("put_vp_no_rnd_pixels8_l2_mmx")
97}
98#endif /*HAVE_6REGS */
99#endif /* HAVE_MMX_INLINE */
100
101av_cold void ff_vp3dsp_init_x86(VP3DSPContext *c, int flags)
102{
103    int cpu_flags = av_get_cpu_flags();
104
105#if HAVE_6REGS && HAVE_MMX_INLINE
106    c->put_no_rnd_pixels_l2 = put_vp_no_rnd_pixels8_l2_mmx;
107#endif /* HAVE_6REGS && HAVE_MMX_INLINE */
108
109#if ARCH_X86_32
110    if (EXTERNAL_MMX(cpu_flags)) {
111        c->idct_put  = ff_vp3_idct_put_mmx;
112        c->idct_add  = ff_vp3_idct_add_mmx;
113    }
114#endif
115
116    if (EXTERNAL_MMXEXT(cpu_flags)) {
117        c->idct_dc_add = ff_vp3_idct_dc_add_mmxext;
118
119        if (!(flags & CODEC_FLAG_BITEXACT)) {
120            c->v_loop_filter = ff_vp3_v_loop_filter_mmxext;
121            c->h_loop_filter = ff_vp3_h_loop_filter_mmxext;
122        }
123    }
124
125    if (EXTERNAL_SSE2(cpu_flags)) {
126        c->idct_put  = ff_vp3_idct_put_sse2;
127        c->idct_add  = ff_vp3_idct_add_sse2;
128    }
129}
130