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mpv/ffmpeg_files/x86_cpu.h
Uoti Urpala a009d56d4d Add copies of needed internal FFmpeg files under ffmpeg_files/
MPlayer used to depend on having an FFmpeg tree available at build
time to provide this code, and FFmpeg changes occasionally broke
the MPlayer build as a result. Some of the relevant functionality also
depends on FFmpeg library symbols that are not part of the FFmpeg API,
meaning that library changes could break MPlayer after the build. Add
a copy of the relevant functionality to the MPlayer tree and use that
instead.

The added files are:
- The headers bswap.h, intreadwrite.h and x86_cpu.h from libavutil.
  Some MPlayer code uses the functionality defined as macros and
  static inline functions in these headers.
- Architecture-specific internal files used by the above headers.
  These are in the subdirectories: x86/, arm/, bfin/, sh4/.
- taglists.[ch], which provides the codec tables from
  libavformat/riff.c and two functions to access them from
  libavformat/utils.c.

Most of the headers are copied from FFmpeg revision 19452 with only
the include guard names changed. A "common.h" include in bswap.h was
changed to "libavutil/common.h" as it should use the installed header.
Taglists.c contains snippets from the relevant files with some
changes like renamed identifiers.
2009-07-26 06:15:30 +03:00

77 lines
2.0 KiB
C

/*
* copyright (c) 2006 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
*/
#ifndef MP_AVUTIL_X86_CPU_H
#define MP_AVUTIL_X86_CPU_H
#include <stdint.h>
#include "config.h"
#if ARCH_X86_64
# define REG_a "rax"
# define REG_b "rbx"
# define REG_c "rcx"
# define REG_d "rdx"
# define REG_D "rdi"
# define REG_S "rsi"
# define PTR_SIZE "8"
typedef int64_t x86_reg;
# define REG_SP "rsp"
# define REG_BP "rbp"
# define REGBP rbp
# define REGa rax
# define REGb rbx
# define REGc rcx
# define REGd rdx
# define REGSP rsp
#elif ARCH_X86_32
# define REG_a "eax"
# define REG_b "ebx"
# define REG_c "ecx"
# define REG_d "edx"
# define REG_D "edi"
# define REG_S "esi"
# define PTR_SIZE "4"
typedef int32_t x86_reg;
# define REG_SP "esp"
# define REG_BP "ebp"
# define REGBP ebp
# define REGa eax
# define REGb ebx
# define REGc ecx
# define REGd edx
# define REGSP esp
#else
typedef int x86_reg;
#endif
#define HAVE_7REGS (ARCH_X86_64 || (HAVE_EBX_AVAILABLE && HAVE_EBP_AVAILABLE))
#define HAVE_6REGS (ARCH_X86_64 || (HAVE_EBX_AVAILABLE || HAVE_EBP_AVAILABLE))
#if ARCH_X86_64 && defined(PIC)
# define BROKEN_RELOCATIONS 1
#endif
#endif /* AVUTIL_X86_CPU_H */