mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
2.3 KiB
65 lines
2.3 KiB
/* |
|
* Copyright (c) 2009 Loren Merritt <lorenm@u.washington.edu> |
|
* |
|
* This file is part of Libav. |
|
* |
|
* Libav 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. |
|
* |
|
* Libav 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 Libav; 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 */
|
|
|