| /* |
| * 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 */ |