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Diffstat (limited to 'libavcodec/x86/h264_cabac.c')
-rw-r--r--libavcodec/x86/h264_cabac.c208
1 files changed, 0 insertions, 208 deletions
diff --git a/libavcodec/x86/h264_cabac.c b/libavcodec/x86/h264_cabac.c
deleted file mode 100644
index 2edc6d7e74..0000000000
--- a/libavcodec/x86/h264_cabac.c
+++ /dev/null
@@ -1,208 +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
- * H.264 / AVC / MPEG-4 part10 codec.
- * non-SIMD x86-specific optimizations for H.264
- * @author Michael Niedermayer <michaelni@gmx.at>
- */
-
-#include <stddef.h>
-
-#include "libavcodec/cabac.h"
-#include "cabac.h"
-
-#if HAVE_INLINE_ASM
-
-#if ARCH_X86_64
-#define REG64 "r"
-#else
-#define REG64 "m"
-#endif
-
-//FIXME use some macros to avoid duplicating get_cabac (cannot be done yet
-//as that would make optimization work hard)
-#if HAVE_7REGS && !BROKEN_COMPILER
-#define decode_significance decode_significance_x86
-static int decode_significance_x86(CABACContext *c, int max_coeff,
- uint8_t *significant_coeff_ctx_base,
- int *index, x86_reg last_off){
- void *end= significant_coeff_ctx_base + max_coeff - 1;
- int minusstart= -(intptr_t)significant_coeff_ctx_base;
- int minusindex= 4-(intptr_t)index;
- int bit;
- x86_reg coeff_count;
-
-#ifdef BROKEN_RELOCATIONS
- void *tables;
-
- __asm__ volatile(
- "lea "MANGLE(ff_h264_cabac_tables)", %0 \n\t"
- : "=&r"(tables)
- : NAMED_CONSTRAINTS_ARRAY(ff_h264_cabac_tables)
- );
-#endif
-
- __asm__ volatile(
- "3: \n\t"
-
- BRANCHLESS_GET_CABAC("%4", "%q4", "(%1)", "%3", "%w3",
- "%5", "%q5", "%k0", "%b0",
- "%c11(%6)", "%c12(%6)",
- AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
- AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
- AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
- "%13")
-
- "test $1, %4 \n\t"
- " jz 4f \n\t"
- "add %10, %1 \n\t"
-
- BRANCHLESS_GET_CABAC("%4", "%q4", "(%1)", "%3", "%w3",
- "%5", "%q5", "%k0", "%b0",
- "%c11(%6)", "%c12(%6)",
- AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
- AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
- AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
- "%13")
-
- "sub %10, %1 \n\t"
- "mov %2, %0 \n\t"
- "movl %7, %%ecx \n\t"
- "add %1, %%"FF_REG_c" \n\t"
- "movl %%ecx, (%0) \n\t"
-
- "test $1, %4 \n\t"
- " jnz 5f \n\t"
-
- "add"FF_OPSIZE" $4, %2 \n\t"
-
- "4: \n\t"
- "add $1, %1 \n\t"
- "cmp %8, %1 \n\t"
- " jb 3b \n\t"
- "mov %2, %0 \n\t"
- "movl %7, %%ecx \n\t"
- "add %1, %%"FF_REG_c" \n\t"
- "movl %%ecx, (%0) \n\t"
- "5: \n\t"
- "add %9, %k0 \n\t"
- "shr $2, %k0 \n\t"
- : "=&q"(coeff_count), "+r"(significant_coeff_ctx_base), "+m"(index),
- "+&r"(c->low), "=&r"(bit), "+&r"(c->range)
- : "r"(c), "m"(minusstart), "m"(end), "m"(minusindex), "m"(last_off),
- "i"(offsetof(CABACContext, bytestream)),
- "i"(offsetof(CABACContext, bytestream_end))
- TABLES_ARG
- : "%"FF_REG_c, "memory"
- );
- return coeff_count;
-}
-
-#define decode_significance_8x8 decode_significance_8x8_x86
-static int decode_significance_8x8_x86(CABACContext *c,
- uint8_t *significant_coeff_ctx_base,
- int *index, uint8_t *last_coeff_ctx_base, const uint8_t *sig_off){
- int minusindex= 4-(intptr_t)index;
- int bit;
- x86_reg coeff_count;
- x86_reg last=0;
- x86_reg state;
-
-#ifdef BROKEN_RELOCATIONS
- void *tables;
-
- __asm__ volatile(
- "lea "MANGLE(ff_h264_cabac_tables)", %0 \n\t"
- : "=&r"(tables)
- : NAMED_CONSTRAINTS_ARRAY(ff_h264_cabac_tables)
- );
-#endif
-
- __asm__ volatile(
- "mov %1, %6 \n\t"
- "3: \n\t"
-
- "mov %10, %0 \n\t"
- "movzb (%0, %6), %6 \n\t"
- "add %9, %6 \n\t"
-
- BRANCHLESS_GET_CABAC("%4", "%q4", "(%6)", "%3", "%w3",
- "%5", "%q5", "%k0", "%b0",
- "%c12(%7)", "%c13(%7)",
- AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
- AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
- AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
- "%15")
-
- "mov %1, %6 \n\t"
- "test $1, %4 \n\t"
- " jz 4f \n\t"
-
-#ifdef BROKEN_RELOCATIONS
- "movzb %c14(%15, %q6), %6\n\t"
-#else
- "movzb "MANGLE(ff_h264_cabac_tables)"+%c14(%6), %6\n\t"
-#endif
- "add %11, %6 \n\t"
-
- BRANCHLESS_GET_CABAC("%4", "%q4", "(%6)", "%3", "%w3",
- "%5", "%q5", "%k0", "%b0",
- "%c12(%7)", "%c13(%7)",
- AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
- AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
- AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
- "%15")
-
- "mov %2, %0 \n\t"
- "mov %1, %6 \n\t"
- "mov %k6, (%0) \n\t"
-
- "test $1, %4 \n\t"
- " jnz 5f \n\t"
-
- "add"FF_OPSIZE" $4, %2 \n\t"
-
- "4: \n\t"
- "add $1, %6 \n\t"
- "mov %6, %1 \n\t"
- "cmp $63, %6 \n\t"
- " jb 3b \n\t"
- "mov %2, %0 \n\t"
- "mov %k6, (%0) \n\t"
- "5: \n\t"
- "addl %8, %k0 \n\t"
- "shr $2, %k0 \n\t"
- : "=&q"(coeff_count), "+"REG64(last), "+"REG64(index), "+&r"(c->low),
- "=&r"(bit), "+&r"(c->range), "=&r"(state)
- : "r"(c), "m"(minusindex), "m"(significant_coeff_ctx_base),
- REG64(sig_off), REG64(last_coeff_ctx_base),
- "i"(offsetof(CABACContext, bytestream)),
- "i"(offsetof(CABACContext, bytestream_end)),
- "i"(H264_LAST_COEFF_FLAG_OFFSET_8x8_OFFSET) TABLES_ARG
- : "%"FF_REG_c, "memory"
- );
- return coeff_count;
-}
-#endif /* HAVE_7REGS && BROKEN_COMPILER */
-
-#endif /* HAVE_INLINE_ASM */
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-19 02:33:04 +0000