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| author | Mans Rullgard <mans@mansr.com> | 2011-06-20 10:12:29 +0100 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2011-06-20 22:36:31 +0100 |
| commit | b92c1a6d2630e46b6e7c6ceca467e7f56fae5218 (patch) | |
| tree | 2b235ebcbaa1192b3fbcc9687eb5113e5ee266cb /libavcodec | |
| parent | 3fc4e36c78004b37b6179423231e3e0daa3c7e74 (diff) | |
| download | ffmpeg-b92c1a6d2630e46b6e7c6ceca467e7f56fae5218.tar.gz | |
x86: h264: remove hardcoded esi in decode_significance[_8x8]_x86()
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/x86/h264_i386.h | 65 |
1 files changed, 34 insertions, 31 deletions
diff --git a/libavcodec/x86/h264_i386.h b/libavcodec/x86/h264_i386.h index b303347c0f..d38b18e5e5 100644 --- a/libavcodec/x86/h264_i386.h +++ b/libavcodec/x86/h264_i386.h @@ -45,25 +45,26 @@ static int decode_significance_x86(CABACContext *c, int max_coeff, int bit; x86_reg coeff_count; int low; + int range; __asm__ volatile( - "movl %a10(%5), %%esi \n\t" - "movl %a11(%5), %3 \n\t" + "movl %a11(%6), %5 \n\t" + "movl %a12(%6), %3 \n\t" "2: \n\t" - BRANCHLESS_GET_CABAC("%4", "%5", "(%1)", "%3", - "%w3", "%%esi", "%k0", "%b0", "%a12") + BRANCHLESS_GET_CABAC("%4", "%6", "(%1)", "%3", + "%w3", "%5", "%k0", "%b0", "%a13") "test $1, %4 \n\t" " jz 3f \n\t" - "add %9, %1 \n\t" + "add %10, %1 \n\t" - BRANCHLESS_GET_CABAC("%4", "%5", "(%1)", "%3", - "%w3", "%%esi", "%k0", "%b0", "%a12") + BRANCHLESS_GET_CABAC("%4", "%6", "(%1)", "%3", + "%w3", "%5", "%k0", "%b0", "%a13") - "sub %9, %1 \n\t" + "sub %10, %1 \n\t" "mov %2, %0 \n\t" - "movl %6, %%ecx \n\t" + "movl %7, %%ecx \n\t" "add %1, %%"REG_c" \n\t" "movl %%ecx, (%0) \n\t" @@ -75,24 +76,24 @@ static int decode_significance_x86(CABACContext *c, int max_coeff, "3: \n\t" "add $1, %1 \n\t" - "cmp %7, %1 \n\t" + "cmp %8, %1 \n\t" " jb 2b \n\t" "mov %2, %0 \n\t" - "movl %6, %%ecx \n\t" + "movl %7, %%ecx \n\t" "add %1, %%"REG_c" \n\t" "movl %%ecx, (%0) \n\t" "4: \n\t" - "add %8, %k0 \n\t" + "add %9, %k0 \n\t" "shr $2, %k0 \n\t" - "movl %%esi, %a10(%5) \n\t" - "movl %3, %a11(%5) \n\t" + "movl %5, %a11(%6) \n\t" + "movl %3, %a12(%6) \n\t" :"=&r"(coeff_count), "+r"(significant_coeff_ctx_base), "+m"(index), - "=&r"(low), "=&r"(bit) + "=&r"(low), "=&r"(bit), "=&r"(range) :"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, "%esi", "memory" + : "%"REG_c, "memory" ); return coeff_count; } @@ -104,31 +105,32 @@ static int decode_significance_8x8_x86(CABACContext *c, int bit; x86_reg coeff_count; int low; + int range; x86_reg last=0; __asm__ volatile( - "movl %a10(%5), %%esi \n\t" - "movl %a11(%5), %3 \n\t" + "movl %a11(%6), %5 \n\t" + "movl %a12(%6), %3 \n\t" "mov %1, %%"REG_D" \n\t" "2: \n\t" - "mov %8, %0 \n\t" + "mov %9, %0 \n\t" "movzbl (%0, %%"REG_D"), %%edi \n\t" - "add %7, %%"REG_D" \n\t" + "add %8, %%"REG_D" \n\t" - BRANCHLESS_GET_CABAC("%4", "%5", "(%%"REG_D")", "%3", - "%w3", "%%esi", "%k0", "%b0", "%a12") + BRANCHLESS_GET_CABAC("%4", "%6", "(%%"REG_D")", "%3", + "%w3", "%5", "%k0", "%b0", "%a13") "mov %1, %%edi \n\t" "test $1, %4 \n\t" " jz 3f \n\t" "movzbl "MANGLE(last_coeff_flag_offset_8x8)"(%%edi), %%edi\n\t" - "add %7, %%"REG_D" \n\t" - "add %9, %%"REG_D" \n\t" + "add %8, %%"REG_D" \n\t" + "add %10, %%"REG_D" \n\t" - BRANCHLESS_GET_CABAC("%4", "%5", "(%%"REG_D")", "%3", - "%w3", "%%esi", "%k0", "%b0", "%a12") + BRANCHLESS_GET_CABAC("%4", "%6", "(%%"REG_D")", "%3", + "%w3", "%5", "%k0", "%b0", "%a13") "mov %2, %0 \n\t" "mov %1, %%edi \n\t" @@ -148,16 +150,17 @@ static int decode_significance_8x8_x86(CABACContext *c, "mov %2, %0 \n\t" "movl %%edi, (%0) \n\t" "4: \n\t" - "addl %6, %k0 \n\t" + "addl %7, %k0 \n\t" "shr $2, %k0 \n\t" - "movl %%esi, %a10(%5) \n\t" - "movl %3, %a11(%5) \n\t" - :"=&r"(coeff_count),"+m"(last), "+m"(index), "=&r"(low), "=&r"(bit) + "movl %5, %a11(%6) \n\t" + "movl %3, %a12(%6) \n\t" + :"=&r"(coeff_count),"+m"(last), "+m"(index), "=&r"(low), "=&r"(bit), + "=&r"(range) :"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, "%esi", "%"REG_D, "memory" + : "%"REG_c, "%"REG_D, "memory" ); return coeff_count; } |