From 3aa9ede400d2d4a91bf2f208d225df05e8677459 Mon Sep 17 00:00:00 2001 From: Jeff Downs Date: Wed, 16 Apr 2008 04:26:52 +0000 Subject: [PATCH] Revert 12838 to redo it the right way (use svn copy to create new file based on old). Originally committed as revision 12845 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/cabac.h | 110 +++++++++++++++++++++++++++++++++ libavcodec/h264.c | 3 - libavcodec/i386/h264_i386.h | 144 -------------------------------------------- 3 files changed, 110 insertions(+), 147 deletions(-) delete mode 100644 libavcodec/i386/h264_i386.h diff --git a/libavcodec/cabac.h b/libavcodec/cabac.h index 0cc4419..ea2ee3e 100644 --- a/libavcodec/cabac.h +++ b/libavcodec/cabac.h @@ -685,6 +685,116 @@ static av_always_inline int get_cabac_bypass_sign(CABACContext *c, int val){ #endif } +//FIXME the x86 code from this file should be moved into i386/h264 or cabac something.c/h (note ill kill you if you move my code away from under my fingers before iam finished with it!) +//FIXME use some macros to avoid duplicatin get_cabac (cannot be done yet as that would make optimization work hard) +#if defined(ARCH_X86) && defined(HAVE_7REGS) && defined(HAVE_EBX_AVAILABLE) && !defined(BROKEN_RELOCATIONS) +static int decode_significance_x86(CABACContext *c, int max_coeff, uint8_t *significant_coeff_ctx_base, int *index){ + void *end= significant_coeff_ctx_base + max_coeff - 1; + int minusstart= -(int)significant_coeff_ctx_base; + int minusindex= 4-(int)index; + int coeff_count; + asm volatile( + "movl "RANGE "(%3), %%esi \n\t" + "movl "LOW "(%3), %%ebx \n\t" + + "2: \n\t" + + BRANCHLESS_GET_CABAC("%%edx", "%3", "(%1)", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al") + + "test $1, %%edx \n\t" + " jz 3f \n\t" + + BRANCHLESS_GET_CABAC("%%edx", "%3", "61(%1)", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al") + + "mov %2, %%"REG_a" \n\t" + "movl %4, %%ecx \n\t" + "add %1, %%"REG_c" \n\t" + "movl %%ecx, (%%"REG_a") \n\t" + + "test $1, %%edx \n\t" + " jnz 4f \n\t" + + "add $4, %%"REG_a" \n\t" + "mov %%"REG_a", %2 \n\t" + + "3: \n\t" + "add $1, %1 \n\t" + "cmp %5, %1 \n\t" + " jb 2b \n\t" + "mov %2, %%"REG_a" \n\t" + "movl %4, %%ecx \n\t" + "add %1, %%"REG_c" \n\t" + "movl %%ecx, (%%"REG_a") \n\t" + "4: \n\t" + "add %6, %%eax \n\t" + "shr $2, %%eax \n\t" + + "movl %%esi, "RANGE "(%3) \n\t" + "movl %%ebx, "LOW "(%3) \n\t" + :"=&a"(coeff_count), "+r"(significant_coeff_ctx_base), "+m"(index) + :"r"(c), "m"(minusstart), "m"(end), "m"(minusindex) + : "%"REG_c, "%ebx", "%edx", "%esi", "memory" + ); + return coeff_count; +} + +static int decode_significance_8x8_x86(CABACContext *c, uint8_t *significant_coeff_ctx_base, int *index, const uint8_t *sig_off){ + int minusindex= 4-(int)index; + int coeff_count; + long last=0; + asm volatile( + "movl "RANGE "(%3), %%esi \n\t" + "movl "LOW "(%3), %%ebx \n\t" + + "mov %1, %%"REG_D" \n\t" + "2: \n\t" + + "mov %6, %%"REG_a" \n\t" + "movzbl (%%"REG_a", %%"REG_D"), %%edi \n\t" + "add %5, %%"REG_D" \n\t" + + BRANCHLESS_GET_CABAC("%%edx", "%3", "(%%"REG_D")", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al") + + "mov %1, %%edi \n\t" + "test $1, %%edx \n\t" + " jz 3f \n\t" + + "movzbl "MANGLE(last_coeff_flag_offset_8x8)"(%%edi), %%edi\n\t" + "add %5, %%"REG_D" \n\t" + + BRANCHLESS_GET_CABAC("%%edx", "%3", "15(%%"REG_D")", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al") + + "mov %2, %%"REG_a" \n\t" + "mov %1, %%edi \n\t" + "movl %%edi, (%%"REG_a") \n\t" + + "test $1, %%edx \n\t" + " jnz 4f \n\t" + + "add $4, %%"REG_a" \n\t" + "mov %%"REG_a", %2 \n\t" + + "3: \n\t" + "addl $1, %%edi \n\t" + "mov %%edi, %1 \n\t" + "cmpl $63, %%edi \n\t" + " jb 2b \n\t" + "mov %2, %%"REG_a" \n\t" + "movl %%edi, (%%"REG_a") \n\t" + "4: \n\t" + "addl %4, %%eax \n\t" + "shr $2, %%eax \n\t" + + "movl %%esi, "RANGE "(%3) \n\t" + "movl %%ebx, "LOW "(%3) \n\t" + :"=&a"(coeff_count),"+m"(last), "+m"(index) + :"r"(c), "m"(minusindex), "m"(significant_coeff_ctx_base), "m"(sig_off) + : "%"REG_c, "%ebx", "%edx", "%esi", "%"REG_D, "memory" + ); + return coeff_count; +} +#endif /* defined(ARCH_X86) && && defined(HAVE_7REGS) && defined(HAVE_EBX_AVAILABLE) && !defined(BROKEN_RELOCATIONS) */ + /** * * @return the number of bytes read or 0 if no end diff --git a/libavcodec/h264.c b/libavcodec/h264.c index a1d4b0d..4b1fe08 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -35,9 +35,6 @@ #include "rectangle.h" #include "cabac.h" -#ifdef ARCH_X86 -#include "i386/h264_i386.h" -#endif //#undef NDEBUG #include diff --git a/libavcodec/i386/h264_i386.h b/libavcodec/i386/h264_i386.h deleted file mode 100644 index 79ef529..0000000 --- a/libavcodec/i386/h264_i386.h +++ /dev/null @@ -1,144 +0,0 @@ -/* - * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder - * Copyright (c) 2003 Michael Niedermayer - * - * 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 - */ - -/** - * @file h264_i386.h - * H.264 / AVC / MPEG4 part10 codec. - * non-MMX i386-specific optimizations for H.264 - * @author Michael Niedermayer - */ - -#ifndef FFMPEG_H264_I386_H -#define FFMPEG_H264_I386_H - - -#include "cabac.h" - -//FIXME use some macros to avoid duplicatin get_cabac (cannot be done yet as that would make optimization work hard) -#if defined(ARCH_X86) && defined(HAVE_7REGS) && defined(HAVE_EBX_AVAILABLE) && !defined(BROKEN_RELOCATIONS) -static int decode_significance_x86(CABACContext *c, int max_coeff, uint8_t *significant_coeff_ctx_base, int *index){ - void *end= significant_coeff_ctx_base + max_coeff - 1; - int minusstart= -(int)significant_coeff_ctx_base; - int minusindex= 4-(int)index; - int coeff_count; - asm volatile( - "movl "RANGE "(%3), %%esi \n\t" - "movl "LOW "(%3), %%ebx \n\t" - - "2: \n\t" - - BRANCHLESS_GET_CABAC("%%edx", "%3", "(%1)", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al") - - "test $1, %%edx \n\t" - " jz 3f \n\t" - - BRANCHLESS_GET_CABAC("%%edx", "%3", "61(%1)", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al") - - "mov %2, %%"REG_a" \n\t" - "movl %4, %%ecx \n\t" - "add %1, %%"REG_c" \n\t" - "movl %%ecx, (%%"REG_a") \n\t" - - "test $1, %%edx \n\t" - " jnz 4f \n\t" - - "add $4, %%"REG_a" \n\t" - "mov %%"REG_a", %2 \n\t" - - "3: \n\t" - "add $1, %1 \n\t" - "cmp %5, %1 \n\t" - " jb 2b \n\t" - "mov %2, %%"REG_a" \n\t" - "movl %4, %%ecx \n\t" - "add %1, %%"REG_c" \n\t" - "movl %%ecx, (%%"REG_a") \n\t" - "4: \n\t" - "add %6, %%eax \n\t" - "shr $2, %%eax \n\t" - - "movl %%esi, "RANGE "(%3) \n\t" - "movl %%ebx, "LOW "(%3) \n\t" - :"=&a"(coeff_count), "+r"(significant_coeff_ctx_base), "+m"(index) - :"r"(c), "m"(minusstart), "m"(end), "m"(minusindex) - : "%"REG_c, "%ebx", "%edx", "%esi", "memory" - ); - return coeff_count; -} - -static int decode_significance_8x8_x86(CABACContext *c, uint8_t *significant_coeff_ctx_base, int *index, const uint8_t *sig_off){ - int minusindex= 4-(int)index; - int coeff_count; - long last=0; - asm volatile( - "movl "RANGE "(%3), %%esi \n\t" - "movl "LOW "(%3), %%ebx \n\t" - - "mov %1, %%"REG_D" \n\t" - "2: \n\t" - - "mov %6, %%"REG_a" \n\t" - "movzbl (%%"REG_a", %%"REG_D"), %%edi \n\t" - "add %5, %%"REG_D" \n\t" - - BRANCHLESS_GET_CABAC("%%edx", "%3", "(%%"REG_D")", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al") - - "mov %1, %%edi \n\t" - "test $1, %%edx \n\t" - " jz 3f \n\t" - - "movzbl "MANGLE(last_coeff_flag_offset_8x8)"(%%edi), %%edi\n\t" - "add %5, %%"REG_D" \n\t" - - BRANCHLESS_GET_CABAC("%%edx", "%3", "15(%%"REG_D")", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al") - - "mov %2, %%"REG_a" \n\t" - "mov %1, %%edi \n\t" - "movl %%edi, (%%"REG_a") \n\t" - - "test $1, %%edx \n\t" - " jnz 4f \n\t" - - "add $4, %%"REG_a" \n\t" - "mov %%"REG_a", %2 \n\t" - - "3: \n\t" - "addl $1, %%edi \n\t" - "mov %%edi, %1 \n\t" - "cmpl $63, %%edi \n\t" - " jb 2b \n\t" - "mov %2, %%"REG_a" \n\t" - "movl %%edi, (%%"REG_a") \n\t" - "4: \n\t" - "addl %4, %%eax \n\t" - "shr $2, %%eax \n\t" - - "movl %%esi, "RANGE "(%3) \n\t" - "movl %%ebx, "LOW "(%3) \n\t" - :"=&a"(coeff_count),"+m"(last), "+m"(index) - :"r"(c), "m"(minusindex), "m"(significant_coeff_ctx_base), "m"(sig_off) - : "%"REG_c, "%ebx", "%edx", "%esi", "%"REG_D, "memory" - ); - return coeff_count; -} -#endif /* defined(ARCH_X86) && && defined(HAVE_7REGS) && defined(HAVE_EBX_AVAILABLE) && !defined(BROKEN_RELOCATIONS) */ - -#endif /* FFMPEG_H264_I386_H */ -- 2.7.4