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authorJeff Downs2008-04-16 04:40:21 +0000
committerJeff Downs2008-04-16 04:40:21 +0000
commit52cb7981e29acbb997fc55d4a7c1ec8b34f67e43 (patch)
treefeb7dee684b717f2392ce1d185a6f15e6ca86024 /libavcodec/cabac.h
parent3aa9ede400d2d4a91bf2f208d225df05e8677459 (diff)
Redo r12838, this time using svn copy to create h264_i386.h from cabac.h.
Move decode_significance_x86() and decode_significance_8x8_x86() to i386-specific file from cabac.h. New file is h264-oriented and only included from h264.c Resolves compilation when configured with --disable-optimizations due to decode_significance_8x8_x86 using last_coeff_flag_offset_8x8, which is only defined in h264.c Originally committed as revision 12846 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/cabac.h')
-rw-r--r--libavcodec/cabac.h110
1 files changed, 0 insertions, 110 deletions
diff --git a/libavcodec/cabac.h b/libavcodec/cabac.h
index ea2ee3e4e6..0cc44190ee 100644
--- a/libavcodec/cabac.h
+++ b/libavcodec/cabac.h
@@ -685,116 +685,6 @@ 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