Add m-esr52 at 52.6.0

1 files changed, 212 insertions, 0 deletions

diff --git a/media/ffvpx/libavcodec/x86/h264_i386.h b/media/ffvpx/libavcodec/x86/h264_i386.h
new file mode 100644
index 000000000..4dfbc3093
--- /dev/null
+++ b/media/ffvpx/libavcodec/x86/h264_i386.h
@@ -0,0 +1,212 @@
+/*
+ * 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-MMX i386-specific optimizations for H.264
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#ifndef AVCODEC_X86_H264_I386_H
+#define AVCODEC_X86_H264_I386_H
+
+#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, %%"REG_c"                     \n\t"
+        "movl %%ecx, (%0)                       \n\t"
+
+        "test $1, %4                            \n\t"
+        " jnz 5f                                \n\t"
+
+        "add"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, %%"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
+        : "%"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"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
+        : "%"REG_c, "memory"
+    );
+    return coeff_count;
+}
+#endif /* HAVE_7REGS && BROKEN_COMPILER */
+
+#endif /* HAVE_INLINE_ASM */
+#endif /* AVCODEC_X86_H264_I386_H */