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| author | Mans Rullgard <mans@mansr.com> | 2011-06-20 01:54:32 +0100 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2011-06-20 22:36:30 +0100 |
| commit | 6b712acc0e4face7e913fbffd03123fc24672654 (patch) | |
| tree | 254fb29f91e7b0a1c5fc5e348fa09d414102a607 /libavcodec/x86 | |
| parent | 34ee43fc0fa7f40a280f4f93a3c6aa5bf7a2704b (diff) | |
| download | ffmpeg-6b712acc0e4face7e913fbffd03123fc24672654.tar.gz | |
x86: cabac: remove hardcoded struct offsets from inline asm
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec/x86')
| -rw-r--r-- | libavcodec/x86/h264_i386.h | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/libavcodec/x86/h264_i386.h b/libavcodec/x86/h264_i386.h index e2dffe1e46..b6c225a2f1 100644 --- a/libavcodec/x86/h264_i386.h +++ b/libavcodec/x86/h264_i386.h @@ -29,6 +29,8 @@ #ifndef AVCODEC_X86_H264_I386_H #define AVCODEC_X86_H264_I386_H +#include <stddef.h> + #include "libavcodec/cabac.h" //FIXME use some macros to avoid duplicating get_cabac (cannot be done yet @@ -42,20 +44,20 @@ static int decode_significance_x86(CABACContext *c, int max_coeff, int minusindex= 4-(int)index; int coeff_count; __asm__ volatile( - "movl "RANGE "(%3), %%esi \n\t" - "movl "LOW "(%3), %%ebx \n\t" + "movl %a8(%3), %%esi \n\t" + "movl %a9(%3), %%ebx \n\t" "2: \n\t" BRANCHLESS_GET_CABAC("%%edx", "%3", "(%1)", "%%ebx", - "%%bx", "%%esi", "%%eax", "%%al") + "%%bx", "%%esi", "%%eax", "%%al", "%a10") "test $1, %%edx \n\t" " jz 3f \n\t" "add %7, %1 \n\t" BRANCHLESS_GET_CABAC("%%edx", "%3", "(%1)", "%%ebx", - "%%bx", "%%esi", "%%eax", "%%al") + "%%bx", "%%esi", "%%eax", "%%al", "%a10") "sub %7, %1 \n\t" "mov %2, %%"REG_a" \n\t" @@ -81,10 +83,12 @@ static int decode_significance_x86(CABACContext *c, int max_coeff, "add %6, %%eax \n\t" "shr $2, %%eax \n\t" - "movl %%esi, "RANGE "(%3) \n\t" - "movl %%ebx, "LOW "(%3) \n\t" + "movl %%esi, %a8(%3) \n\t" + "movl %%ebx, %a9(%3) \n\t" :"=&a"(coeff_count), "+r"(significant_coeff_ctx_base), "+m"(index) - :"r"(c), "m"(minusstart), "m"(end), "m"(minusindex), "m"(last_off) + :"r"(c), "m"(minusstart), "m"(end), "m"(minusindex), "m"(last_off), + "i"(offsetof(CABACContext, range)), "i"(offsetof(CABACContext, low)), + "i"(offsetof(CABACContext, bytestream)) : "%"REG_c, "%ebx", "%edx", "%esi", "memory" ); return coeff_count; @@ -97,8 +101,8 @@ static int decode_significance_8x8_x86(CABACContext *c, int coeff_count; x86_reg last=0; __asm__ volatile( - "movl "RANGE "(%3), %%esi \n\t" - "movl "LOW "(%3), %%ebx \n\t" + "movl %a8(%3), %%esi \n\t" + "movl %a9(%3), %%ebx \n\t" "mov %1, %%"REG_D" \n\t" "2: \n\t" @@ -108,7 +112,7 @@ static int decode_significance_8x8_x86(CABACContext *c, "add %5, %%"REG_D" \n\t" BRANCHLESS_GET_CABAC("%%edx", "%3", "(%%"REG_D")", "%%ebx", - "%%bx", "%%esi", "%%eax", "%%al") + "%%bx", "%%esi", "%%eax", "%%al", "%a10") "mov %1, %%edi \n\t" "test $1, %%edx \n\t" @@ -119,7 +123,7 @@ static int decode_significance_8x8_x86(CABACContext *c, "add %7, %%"REG_D" \n\t" BRANCHLESS_GET_CABAC("%%edx", "%3", "(%%"REG_D")", "%%ebx", - "%%bx", "%%esi", "%%eax", "%%al") + "%%bx", "%%esi", "%%eax", "%%al", "%a10") "mov %2, %%"REG_a" \n\t" "mov %1, %%edi \n\t" @@ -142,10 +146,12 @@ static int decode_significance_8x8_x86(CABACContext *c, "addl %4, %%eax \n\t" "shr $2, %%eax \n\t" - "movl %%esi, "RANGE "(%3) \n\t" - "movl %%ebx, "LOW "(%3) \n\t" + "movl %%esi, %a8(%3) \n\t" + "movl %%ebx, %a9(%3) \n\t" :"=&a"(coeff_count),"+m"(last), "+m"(index) - :"r"(c), "m"(minusindex), "m"(significant_coeff_ctx_base), "m"(sig_off), "m"(last_off) + :"r"(c), "m"(minusindex), "m"(significant_coeff_ctx_base), "m"(sig_off), "m"(last_off), + "i"(offsetof(CABACContext, range)), "i"(offsetof(CABACContext, low)), + "i"(offsetof(CABACContext, bytestream)) : "%"REG_c, "%ebx", "%edx", "%esi", "%"REG_D, "memory" ); return coeff_count; |