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/*
* VC3/DNxHD SIMD functions
* Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
*
* VC-3 encoder funded by the British Broadcasting Corporation
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/x86_cpu.h"
#include "libavcodec/dnxhdenc.h"
static void get_pixels_8x4_sym_sse2(DCTELEM *block, const uint8_t *pixels, int line_size)
{
__asm__ volatile(
"pxor %%xmm7, %%xmm7 \n\t"
"movq (%0), %%xmm0 \n\t"
"add %2, %0 \n\t"
"movq (%0), %%xmm1 \n\t"
"movq (%0, %2), %%xmm2 \n\t"
"movq (%0, %2,2), %%xmm3 \n\t"
"punpcklbw %%xmm7, %%xmm0 \n\t"
"punpcklbw %%xmm7, %%xmm1 \n\t"
"punpcklbw %%xmm7, %%xmm2 \n\t"
"punpcklbw %%xmm7, %%xmm3 \n\t"
"movdqa %%xmm0, (%1) \n\t"
"movdqa %%xmm1, 16(%1) \n\t"
"movdqa %%xmm2, 32(%1) \n\t"
"movdqa %%xmm3, 48(%1) \n\t"
"movdqa %%xmm3 , 64(%1) \n\t"
"movdqa %%xmm2 , 80(%1) \n\t"
"movdqa %%xmm1 , 96(%1) \n\t"
"movdqa %%xmm0, 112(%1) \n\t"
: "+r" (pixels)
: "r" (block), "r" ((x86_reg)line_size)
);
}
void ff_dnxhd_init_mmx(DNXHDEncContext *ctx)
{
if (mm_support() & AV_CPU_FLAG_SSE2) {
ctx->get_pixels_8x4_sym = get_pixels_8x4_sym_sse2;
}
}
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