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-rw-r--r--libavcodec/cabac.h110
-rw-r--r--libavcodec/h264.c3
-rw-r--r--libavcodec/i386/h264_i386.h144
3 files changed, 110 insertions, 147 deletions
diff --git a/libavcodec/cabac.h b/libavcodec/cabac.h
index 0cc44190ee..ea2ee3e4e6 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 a1d4b0dfe3..4b1fe085f2 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 <assert.h>
diff --git a/libavcodec/i386/h264_i386.h b/libavcodec/i386/h264_i386.h
deleted file mode 100644
index 79ef5299ad..0000000000
--- 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 <michaelni@gmx.at>
- *
- * 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 <michaelni@gmx.at>
- */
-
-#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 */
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-02 02:25:45 +0000