66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
/*
|
|
* Copyright (c) 2009 Loren Merritt <lorenm@u.washington.edu>
|
|
*
|
|
* 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 "config.h"
|
|
#include "libavutil/x86/asm.h"
|
|
#include "dsputil_x86.h"
|
|
|
|
#if HAVE_INLINE_ASM
|
|
|
|
#if HAVE_7REGS
|
|
void ff_add_hfyu_median_prediction_cmov(uint8_t *dst, const uint8_t *top,
|
|
const uint8_t *diff, int w,
|
|
int *left, int *left_top)
|
|
{
|
|
x86_reg w2 = -w;
|
|
x86_reg x;
|
|
int l = *left & 0xff;
|
|
int tl = *left_top & 0xff;
|
|
int t;
|
|
__asm__ volatile (
|
|
"mov %7, %3 \n"
|
|
"1: \n"
|
|
"movzbl (%3, %4), %2 \n"
|
|
"mov %2, %k3 \n"
|
|
"sub %b1, %b3 \n"
|
|
"add %b0, %b3 \n"
|
|
"mov %2, %1 \n"
|
|
"cmp %0, %2 \n"
|
|
"cmovg %0, %2 \n"
|
|
"cmovg %1, %0 \n"
|
|
"cmp %k3, %0 \n"
|
|
"cmovg %k3, %0 \n"
|
|
"mov %7, %3 \n"
|
|
"cmp %2, %0 \n"
|
|
"cmovl %2, %0 \n"
|
|
"add (%6, %4), %b0 \n"
|
|
"mov %b0, (%5, %4) \n"
|
|
"inc %4 \n"
|
|
"jl 1b \n"
|
|
: "+&q"(l), "+&q"(tl), "=&r"(t), "=&q"(x), "+&r"(w2)
|
|
: "r"(dst + w), "r"(diff + w), "rm"(top + w)
|
|
);
|
|
*left = l;
|
|
*left_top = tl;
|
|
}
|
|
#endif
|
|
|
|
#endif /* HAVE_INLINE_ASM */
|