1/*
2 * VC3/DNxHD SIMD functions
3 * Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
4 *
5 * VC-3 encoder funded by the British Broadcasting Corporation
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24#include "libavutil/x86_cpu.h"
25#include "libavcodec/dnxhdenc.h"
26
27static void get_pixels_8x4_sym_sse2(DCTELEM *block, const uint8_t *pixels, int line_size)
28{
29    __asm__ volatile(
30        "pxor %%xmm7,      %%xmm7       \n\t"
31        "movq (%0),        %%xmm0       \n\t"
32        "add  %2,          %0           \n\t"
33        "movq (%0),        %%xmm1       \n\t"
34        "movq (%0, %2),    %%xmm2       \n\t"
35        "movq (%0, %2,2),  %%xmm3       \n\t"
36        "punpcklbw %%xmm7, %%xmm0       \n\t"
37        "punpcklbw %%xmm7, %%xmm1       \n\t"
38        "punpcklbw %%xmm7, %%xmm2       \n\t"
39        "punpcklbw %%xmm7, %%xmm3       \n\t"
40        "movdqa %%xmm0,      (%1)       \n\t"
41        "movdqa %%xmm1,    16(%1)       \n\t"
42        "movdqa %%xmm2,    32(%1)       \n\t"
43        "movdqa %%xmm3,    48(%1)       \n\t"
44        "movdqa %%xmm3 ,   64(%1)       \n\t"
45        "movdqa %%xmm2 ,   80(%1)       \n\t"
46        "movdqa %%xmm1 ,   96(%1)       \n\t"
47        "movdqa %%xmm0,   112(%1)       \n\t"
48        : "+r" (pixels)
49        : "r" (block), "r" ((x86_reg)line_size)
50    );
51}
52
53void ff_dnxhd_init_mmx(DNXHDEncContext *ctx)
54{
55    if (mm_flags & FF_MM_SSE2) {
56        ctx->get_pixels_8x4_sym = get_pixels_8x4_sym_sse2;
57    }
58}
59