diff options
Diffstat (limited to 'libavcodec/x86/vp56_arith.h')
| -rw-r--r-- | libavcodec/x86/vp56_arith.h | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/libavcodec/x86/vp56_arith.h b/libavcodec/x86/vp56_arith.h index 0a69368..810cc8d 100644 --- a/libavcodec/x86/vp56_arith.h +++ b/libavcodec/x86/vp56_arith.h @@ -4,49 +4,46 @@ * Copyright (C) 2006 Aurelien Jacobs <aurel@gnuage.org> * Copyright (C) 2010 Eli Friedman * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef AVCODEC_X86_VP56_ARITH_H #define AVCODEC_X86_VP56_ARITH_H -#if HAVE_INLINE_ASM && HAVE_FAST_CMOV +#if HAVE_INLINE_ASM && HAVE_FAST_CMOV && HAVE_6REGS #define vp56_rac_get_prob vp56_rac_get_prob static av_always_inline int vp56_rac_get_prob(VP56RangeCoder *c, uint8_t prob) { unsigned int code_word = vp56_rac_renorm(c); - unsigned int high = c->high; - unsigned int low = 1 + (((high - 1) * prob) >> 8); + unsigned int low = 1 + (((c->high - 1) * prob) >> 8); unsigned int low_shift = low << 16; int bit = 0; + c->code_word = code_word; __asm__( "subl %4, %1 \n\t" "subl %3, %2 \n\t" - "leal (%2, %3), %3 \n\t" "setae %b0 \n\t" "cmovb %4, %1 \n\t" - "cmovb %3, %2 \n\t" - : "+q"(bit), "+r"(high), "+r"(code_word), "+r"(low_shift) - : "r"(low) + "cmovb %5, %2 \n\t" + : "+q"(bit), "+&r"(c->high), "+&r"(c->code_word) + : "r"(low_shift), "r"(low), "r"(code_word) ); - c->high = high; - c->code_word = code_word; return bit; } #endif |
