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(*
* 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
*
* This is a part of the Pascal port of ffmpeg.
* - Changes and updates by the UltraStar Deluxe Team
*
* Conversion of libavutil/cpu.h
* avutil version 51.54.100
*
*)
(**
* @file
* CPU specific
*)
const
AV_CPU_FLAG_FORCE = $80000000; (* force usage of selected flags (OR) *)
(* lower 16 bits - CPU features *)
AV_CPU_FLAG_MMX = $0001; ///< standard MMX
AV_CPU_FLAG_MMX2 = $0002; ///< SSE integer functions or AMD MMX ext
AV_CPU_FLAG_3DNOW = $0004; ///< AMD 3DNOW
AV_CPU_FLAG_SSE = $0008; ///< SSE functions
AV_CPU_FLAG_SSE2 = $0010; ///< PIV SSE2 functions
AV_CPU_FLAG_SSE2SLOW = $40000000; ///< SSE2 supported, but usually not faster
AV_CPU_FLAG_3DNOWEXT = $0020; ///< AMD 3DNowExt
AV_CPU_FLAG_SSE3 = $0040; ///< Prescott SSE3 functions
AV_CPU_FLAG_SSE3SLOW = $20000000; ///< SSE3 supported, but usually not faster
AV_CPU_FLAG_SSSE3 = $0080; ///< Conroe SSSE3 functions
AV_CPU_FLAG_ATOM = $10000000; ///< Atom processor, some SSSE3 instructions are slower
AV_CPU_FLAG_SSE4 = $0100; ///< Penryn SSE4.1 functions
AV_CPU_FLAG_SSE42 = $0200; ///< Nehalem SSE4.2 functions
AV_CPU_FLAG_AVX = $4000; ///< AVX functions: requires OS support even if YMM registers aren't used
AV_CPU_FLAG_CMOV = $1000000; ///< supports cmov instruction
AV_CPU_FLAG_XOP = $0400; ///< Bulldozer XOP functions
AV_CPU_FLAG_FMA4 = $0800; ///< Bulldozer FMA4 functions
AV_CPU_FLAG_ALTIVEC = $0001; ///< standard
AV_CPU_FLAG_ARMV5TE = (1 << 0);
AV_CPU_FLAG_ARMV6 = (1 << 1);
AV_CPU_FLAG_ARMV6T2 = (1 << 2);
AV_CPU_FLAG_VFP = (1 << 3);
AV_CPU_FLAG_VFPV3 = (1 << 4);
AV_CPU_FLAG_NEON = (1 << 5);
(**
* Return the flags which specify extensions supported by the CPU.
*)
function av_get_cpu_flags(): cint;
cdecl; external av__util;
(**
* Disables cpu detection and forces the specified flags.
* -1 is a special case that disables forcing of specific flags.
*)
procedure av_force_cpu_flags(flags: cint);
cdecl; external av__util;
(**
* Set a mask on flags returned by av_get_cpu_flags().
* This function is mainly useful for testing.
* Please use av_force_cpu_flags() and av_get_cpu_flags() instead which are more flexible
*
* @warning this function is not thread safe.
*)
procedure av_set_cpu_flags_mask(mask: cint);
cdecl; external av__util; deprecated;
(**
* Parse CPU flags from a string.
*
* The returned flags contain the specified flags as well as related unspecified flags.
*
* This function exists only for compatibility with libav.
* Please use av_parse_cpu_caps() when possible.
* @return a combination of AV_CPU_* flags, negative on error.
*)
function av_parse_cpu_flags(s: {const} PAnsiChar): cint;
cdecl; external av__util;
(**
* Parse CPU caps from a string and update the given AV_CPU_* flags based on that.
*
* @return negative on error.
*)
function av_parse_cpu_caps(flags: Pcuint; s: {const} PAnsiChar): cint;
cdecl; external av__util;
(* The following CPU-specific functions shall not be called directly. *)
function ff_get_cpu_flags_arm(): cint;
cdecl; external av__util;
function ff_get_cpu_flags_ppc(): cint;
cdecl; external av__util;
function ff_get_cpu_flags_x86(): cint;
cdecl; external av__util;
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