Browse code
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
Jeff Downs authored on 2008/04/16 13:26:52Showing 3 changed files
| ... | ... |
@@ -685,6 +685,116 @@ static av_always_inline int get_cabac_bypass_sign(CABACContext *c, int val){
|
| 685 | 685 |
#endif |
| 686 | 686 |
} |
| 687 | 687 |
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| 688 |
+//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!) |
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+//FIXME use some macros to avoid duplicatin get_cabac (cannot be done yet as that would make optimization work hard) |
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+#if defined(ARCH_X86) && defined(HAVE_7REGS) && defined(HAVE_EBX_AVAILABLE) && !defined(BROKEN_RELOCATIONS) |
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+static int decode_significance_x86(CABACContext *c, int max_coeff, uint8_t *significant_coeff_ctx_base, int *index){
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+ void *end= significant_coeff_ctx_base + max_coeff - 1; |
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+ int minusstart= -(int)significant_coeff_ctx_base; |
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+ int minusindex= 4-(int)index; |
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+ int coeff_count; |
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+ asm volatile( |
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+ "movl "RANGE "(%3), %%esi \n\t" |
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+ "movl "LOW "(%3), %%ebx \n\t" |
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+ |
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+ "2: \n\t" |
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+ |
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+ BRANCHLESS_GET_CABAC("%%edx", "%3", "(%1)", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al")
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+ |
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+ "test $1, %%edx \n\t" |
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+ " jz 3f \n\t" |
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+ |
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+ BRANCHLESS_GET_CABAC("%%edx", "%3", "61(%1)", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al")
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+ |
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+ "mov %2, %%"REG_a" \n\t" |
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+ "movl %4, %%ecx \n\t" |
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| 711 |
+ "add %1, %%"REG_c" \n\t" |
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| 712 |
+ "movl %%ecx, (%%"REG_a") \n\t" |
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+ |
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+ "test $1, %%edx \n\t" |
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| 715 |
+ " jnz 4f \n\t" |
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+ |
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+ "add $4, %%"REG_a" \n\t" |
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| 718 |
+ "mov %%"REG_a", %2 \n\t" |
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+ |
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+ "3: \n\t" |
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| 721 |
+ "add $1, %1 \n\t" |
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| 722 |
+ "cmp %5, %1 \n\t" |
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| 723 |
+ " jb 2b \n\t" |
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| 724 |
+ "mov %2, %%"REG_a" \n\t" |
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| 725 |
+ "movl %4, %%ecx \n\t" |
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| 726 |
+ "add %1, %%"REG_c" \n\t" |
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| 727 |
+ "movl %%ecx, (%%"REG_a") \n\t" |
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| 728 |
+ "4: \n\t" |
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| 729 |
+ "add %6, %%eax \n\t" |
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+ "shr $2, %%eax \n\t" |
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+ |
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+ "movl %%esi, "RANGE "(%3) \n\t" |
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+ "movl %%ebx, "LOW "(%3) \n\t" |
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+ :"=&a"(coeff_count), "+r"(significant_coeff_ctx_base), "+m"(index) |
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+ :"r"(c), "m"(minusstart), "m"(end), "m"(minusindex) |
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+ : "%"REG_c, "%ebx", "%edx", "%esi", "memory" |
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+ ); |
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+ return coeff_count; |
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+} |
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+ |
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+static int decode_significance_8x8_x86(CABACContext *c, uint8_t *significant_coeff_ctx_base, int *index, const uint8_t *sig_off){
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+ int minusindex= 4-(int)index; |
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+ int coeff_count; |
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+ long last=0; |
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+ asm volatile( |
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+ "movl "RANGE "(%3), %%esi \n\t" |
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+ "movl "LOW "(%3), %%ebx \n\t" |
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+ |
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| 749 |
+ "mov %1, %%"REG_D" \n\t" |
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+ "2: \n\t" |
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+ |
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+ "mov %6, %%"REG_a" \n\t" |
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+ "movzbl (%%"REG_a", %%"REG_D"), %%edi \n\t" |
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+ "add %5, %%"REG_D" \n\t" |
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+ |
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+ BRANCHLESS_GET_CABAC("%%edx", "%3", "(%%"REG_D")", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al")
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+ |
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+ "mov %1, %%edi \n\t" |
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| 759 |
+ "test $1, %%edx \n\t" |
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| 760 |
+ " jz 3f \n\t" |
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+ |
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+ "movzbl "MANGLE(last_coeff_flag_offset_8x8)"(%%edi), %%edi\n\t" |
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+ "add %5, %%"REG_D" \n\t" |
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+ |
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+ BRANCHLESS_GET_CABAC("%%edx", "%3", "15(%%"REG_D")", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al")
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+ |
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+ "mov %2, %%"REG_a" \n\t" |
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| 768 |
+ "mov %1, %%edi \n\t" |
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| 769 |
+ "movl %%edi, (%%"REG_a") \n\t" |
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+ |
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+ "test $1, %%edx \n\t" |
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+ " jnz 4f \n\t" |
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+ |
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+ "add $4, %%"REG_a" \n\t" |
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| 775 |
+ "mov %%"REG_a", %2 \n\t" |
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+ |
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+ "3: \n\t" |
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| 778 |
+ "addl $1, %%edi \n\t" |
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| 779 |
+ "mov %%edi, %1 \n\t" |
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| 780 |
+ "cmpl $63, %%edi \n\t" |
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| 781 |
+ " jb 2b \n\t" |
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+ "mov %2, %%"REG_a" \n\t" |
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| 783 |
+ "movl %%edi, (%%"REG_a") \n\t" |
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+ "4: \n\t" |
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| 785 |
+ "addl %4, %%eax \n\t" |
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+ "shr $2, %%eax \n\t" |
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+ |
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+ "movl %%esi, "RANGE "(%3) \n\t" |
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+ "movl %%ebx, "LOW "(%3) \n\t" |
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+ :"=&a"(coeff_count),"+m"(last), "+m"(index) |
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+ :"r"(c), "m"(minusindex), "m"(significant_coeff_ctx_base), "m"(sig_off) |
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+ : "%"REG_c, "%ebx", "%edx", "%esi", "%"REG_D, "memory" |
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+ ); |
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+ return coeff_count; |
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+} |
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+#endif /* defined(ARCH_X86) && && defined(HAVE_7REGS) && defined(HAVE_EBX_AVAILABLE) && !defined(BROKEN_RELOCATIONS) */ |
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+ |
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/** |
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* |
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* @return the number of bytes read or 0 if no end |
| 44 | 41 |
deleted file mode 100644 |
| ... | ... |
@@ -1,144 +0,0 @@ |
| 1 |
-/* |
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| 2 |
- * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder |
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- * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> |
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- * |
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- * This file is part of FFmpeg. |
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- * |
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- * FFmpeg is free software; you can redistribute it and/or |
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| 8 |
- * modify it under the terms of the GNU Lesser General Public |
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| 9 |
- * License as published by the Free Software Foundation; either |
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| 10 |
- * version 2.1 of the License, or (at your option) any later version. |
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- * |
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- * FFmpeg is distributed in the hope that it will be useful, |
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 |
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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- * Lesser General Public License for more details. |
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- * |
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- * You should have received a copy of the GNU Lesser General Public |
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- * License along with FFmpeg; if not, write to the Free Software |
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- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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- */ |
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- |
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-/** |
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- * @file h264_i386.h |
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- * H.264 / AVC / MPEG4 part10 codec. |
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- * non-MMX i386-specific optimizations for H.264 |
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- * @author Michael Niedermayer <michaelni@gmx.at> |
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- */ |
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- |
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-#ifndef FFMPEG_H264_I386_H |
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-#define FFMPEG_H264_I386_H |
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- |
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- |
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-#include "cabac.h" |
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- |
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-//FIXME use some macros to avoid duplicatin get_cabac (cannot be done yet as that would make optimization work hard) |
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-#if defined(ARCH_X86) && defined(HAVE_7REGS) && defined(HAVE_EBX_AVAILABLE) && !defined(BROKEN_RELOCATIONS) |
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-static int decode_significance_x86(CABACContext *c, int max_coeff, uint8_t *significant_coeff_ctx_base, int *index){
|
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- void *end= significant_coeff_ctx_base + max_coeff - 1; |
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- int minusstart= -(int)significant_coeff_ctx_base; |
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- int minusindex= 4-(int)index; |
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- int coeff_count; |
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- asm volatile( |
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- "movl "RANGE "(%3), %%esi \n\t" |
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- "movl "LOW "(%3), %%ebx \n\t" |
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- |
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- "2: \n\t" |
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- |
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- BRANCHLESS_GET_CABAC("%%edx", "%3", "(%1)", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al")
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- |
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- "test $1, %%edx \n\t" |
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- " jz 3f \n\t" |
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- |
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- BRANCHLESS_GET_CABAC("%%edx", "%3", "61(%1)", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al")
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- |
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- "mov %2, %%"REG_a" \n\t" |
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- "movl %4, %%ecx \n\t" |
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- "add %1, %%"REG_c" \n\t" |
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- "movl %%ecx, (%%"REG_a") \n\t" |
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- |
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- "test $1, %%edx \n\t" |
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- " jnz 4f \n\t" |
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- |
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- "add $4, %%"REG_a" \n\t" |
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- "mov %%"REG_a", %2 \n\t" |
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- |
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- "3: \n\t" |
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- "add $1, %1 \n\t" |
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- "cmp %5, %1 \n\t" |
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- " jb 2b \n\t" |
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- "mov %2, %%"REG_a" \n\t" |
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- "movl %4, %%ecx \n\t" |
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- "add %1, %%"REG_c" \n\t" |
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- "movl %%ecx, (%%"REG_a") \n\t" |
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- "4: \n\t" |
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- "add %6, %%eax \n\t" |
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- "shr $2, %%eax \n\t" |
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- |
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- "movl %%esi, "RANGE "(%3) \n\t" |
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- "movl %%ebx, "LOW "(%3) \n\t" |
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- :"=&a"(coeff_count), "+r"(significant_coeff_ctx_base), "+m"(index) |
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- :"r"(c), "m"(minusstart), "m"(end), "m"(minusindex) |
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- : "%"REG_c, "%ebx", "%edx", "%esi", "memory" |
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- ); |
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- return coeff_count; |
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-} |
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- |
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-static int decode_significance_8x8_x86(CABACContext *c, uint8_t *significant_coeff_ctx_base, int *index, const uint8_t *sig_off){
|
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- int minusindex= 4-(int)index; |
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- int coeff_count; |
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- long last=0; |
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- asm volatile( |
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- "movl "RANGE "(%3), %%esi \n\t" |
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- "movl "LOW "(%3), %%ebx \n\t" |
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- |
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- "mov %1, %%"REG_D" \n\t" |
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- "2: \n\t" |
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- |
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- "mov %6, %%"REG_a" \n\t" |
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- "movzbl (%%"REG_a", %%"REG_D"), %%edi \n\t" |
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- "add %5, %%"REG_D" \n\t" |
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- |
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- BRANCHLESS_GET_CABAC("%%edx", "%3", "(%%"REG_D")", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al")
|
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- |
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- "mov %1, %%edi \n\t" |
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- "test $1, %%edx \n\t" |
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- " jz 3f \n\t" |
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- |
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- "movzbl "MANGLE(last_coeff_flag_offset_8x8)"(%%edi), %%edi\n\t" |
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- "add %5, %%"REG_D" \n\t" |
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- |
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- BRANCHLESS_GET_CABAC("%%edx", "%3", "15(%%"REG_D")", "%%ebx", "%%bx", "%%esi", "%%eax", "%%al")
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- |
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- "mov %2, %%"REG_a" \n\t" |
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- "mov %1, %%edi \n\t" |
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- "movl %%edi, (%%"REG_a") \n\t" |
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- |
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- "test $1, %%edx \n\t" |
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- " jnz 4f \n\t" |
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- |
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- "add $4, %%"REG_a" \n\t" |
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- "mov %%"REG_a", %2 \n\t" |
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- |
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- "3: \n\t" |
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- "addl $1, %%edi \n\t" |
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- "mov %%edi, %1 \n\t" |
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- "cmpl $63, %%edi \n\t" |
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- " jb 2b \n\t" |
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- "mov %2, %%"REG_a" \n\t" |
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- "movl %%edi, (%%"REG_a") \n\t" |
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- "4: \n\t" |
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- "addl %4, %%eax \n\t" |
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- "shr $2, %%eax \n\t" |
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- |
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- "movl %%esi, "RANGE "(%3) \n\t" |
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- "movl %%ebx, "LOW "(%3) \n\t" |
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- :"=&a"(coeff_count),"+m"(last), "+m"(index) |
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- :"r"(c), "m"(minusindex), "m"(significant_coeff_ctx_base), "m"(sig_off) |
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- : "%"REG_c, "%ebx", "%edx", "%esi", "%"REG_D, "memory" |
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- ); |
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- return coeff_count; |
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-} |
|
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-#endif /* defined(ARCH_X86) && && defined(HAVE_7REGS) && defined(HAVE_EBX_AVAILABLE) && !defined(BROKEN_RELOCATIONS) */ |
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- |
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-#endif /* FFMPEG_H264_I386_H */ |