a8d0c51c69
* DSP: Implement Pipe 2 Pipe 2 is a DSP pipe that is used to initialize both the DSP hardware (the application signals to the DSP to initialize) and the application (the DSP provides the memory location of structures in the shared memory region). * AudioCore: Implement codecs (DecodeADPCM, DecodePCM8, DecodePCM16) * DSP Pipes: Implement as FIFO * AudioCore: File structure * AudioCore: More structure * AudioCore: Buffer management * DSP/Source: Reorganise Source's AdvanceFrame. * Audio Output * lolidk * huh? * interp * More interp stuff * oops * Zero State * Don't mix Source frame if it's not enabled * DSP: Forgot to zero a buffer, adjusted thread synchronisation, adjusted format spec for buffers * asdf * Get it to compile and tweak stretching a bit. * revert stretch test * deleted accidental partial catch submodule commit * new audio stretching algorithm * update .gitmodule * fix OS X build * remove getopt from rubberband * #include <stddef> to audio_core.h * typo * -framework Accelerate * OptionTransientsSmooth -> OptionTransientsCrisp * tweak stretch tempo smoothing coefficient. also switch back to smooth. * tweak mroe * remove printf * sola * #include <cmath> * VERY QUICK MERGE TO GET IT WORKING DOESN'T ACTIVATE AUDIO FILTERS * Reminder to self * fix comparison * common/thread: Correct code style * Thread: Make Barrier reusable * fix threading synchonisation code * add profiling code * print error to console when audio clips * fix metallic sound * reduce logspam
138 lines
4.6 KiB
C++
138 lines
4.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
///
|
|
/// Generic version of the x86 CPU extension detection routine.
|
|
///
|
|
/// This file is for GNU & other non-Windows compilers, see 'cpu_detect_x86_win.cpp'
|
|
/// for the Microsoft compiler version.
|
|
///
|
|
/// Author : Copyright (c) Olli Parviainen
|
|
/// Author e-mail : oparviai 'at' iki.fi
|
|
/// SoundTouch WWW: http://www.surina.net/soundtouch
|
|
///
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Last changed : $Date: 2014-01-07 20:24:28 +0200 (Tue, 07 Jan 2014) $
|
|
// File revision : $Revision: 4 $
|
|
//
|
|
// $Id: cpu_detect_x86.cpp 183 2014-01-07 18:24:28Z oparviai $
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// License :
|
|
//
|
|
// SoundTouch audio processing library
|
|
// Copyright (c) Olli Parviainen
|
|
//
|
|
// This library 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.
|
|
//
|
|
// This library 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 this library; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "cpu_detect.h"
|
|
#include "STTypes.h"
|
|
|
|
|
|
#if defined(SOUNDTOUCH_ALLOW_X86_OPTIMIZATIONS)
|
|
|
|
#if defined(__GNUC__) && defined(__i386__)
|
|
// gcc
|
|
#include "cpuid.h"
|
|
#elif defined(_M_IX86)
|
|
// windows non-gcc
|
|
#include <intrin.h>
|
|
#endif
|
|
|
|
#define bit_MMX (1 << 23)
|
|
#define bit_SSE (1 << 25)
|
|
#define bit_SSE2 (1 << 26)
|
|
#endif
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// processor instructions extension detection routines
|
|
//
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
// Flag variable indicating whick ISA extensions are disabled (for debugging)
|
|
static uint _dwDisabledISA = 0x00; // 0xffffffff; //<- use this to disable all extensions
|
|
|
|
// Disables given set of instruction extensions. See SUPPORT_... defines.
|
|
void disableExtensions(uint dwDisableMask)
|
|
{
|
|
_dwDisabledISA = dwDisableMask;
|
|
}
|
|
|
|
|
|
|
|
/// Checks which instruction set extensions are supported by the CPU.
|
|
uint detectCPUextensions(void)
|
|
{
|
|
/// If building for a 64bit system (no Itanium) and the user wants optimizations.
|
|
/// Return the OR of SUPPORT_{MMX,SSE,SSE2}. 11001 or 0x19.
|
|
/// Keep the _dwDisabledISA test (2 more operations, could be eliminated).
|
|
#if ((defined(__GNUC__) && defined(__x86_64__)) \
|
|
|| defined(_M_X64)) \
|
|
&& defined(SOUNDTOUCH_ALLOW_X86_OPTIMIZATIONS)
|
|
return 0x19 & ~_dwDisabledISA;
|
|
|
|
/// If building for a 32bit system and the user wants optimizations.
|
|
/// Keep the _dwDisabledISA test (2 more operations, could be eliminated).
|
|
#elif ((defined(__GNUC__) && defined(__i386__)) \
|
|
|| defined(_M_IX86)) \
|
|
&& defined(SOUNDTOUCH_ALLOW_X86_OPTIMIZATIONS)
|
|
|
|
if (_dwDisabledISA == 0xffffffff) return 0;
|
|
|
|
uint res = 0;
|
|
|
|
#if defined(__GNUC__)
|
|
// GCC version of cpuid. Requires GCC 4.3.0 or later for __cpuid intrinsic support.
|
|
uint eax, ebx, ecx, edx; // unsigned int is the standard type. uint is defined by the compiler and not guaranteed to be portable.
|
|
|
|
// Check if no cpuid support.
|
|
if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx)) return 0; // always disable extensions.
|
|
|
|
if (edx & bit_MMX) res = res | SUPPORT_MMX;
|
|
if (edx & bit_SSE) res = res | SUPPORT_SSE;
|
|
if (edx & bit_SSE2) res = res | SUPPORT_SSE2;
|
|
|
|
#else
|
|
// Window / VS version of cpuid. Notice that Visual Studio 2005 or later required
|
|
// for __cpuid intrinsic support.
|
|
int reg[4] = {-1};
|
|
|
|
// Check if no cpuid support.
|
|
__cpuid(reg,0);
|
|
if ((unsigned int)reg[0] == 0) return 0; // always disable extensions.
|
|
|
|
__cpuid(reg,1);
|
|
if ((unsigned int)reg[3] & bit_MMX) res = res | SUPPORT_MMX;
|
|
if ((unsigned int)reg[3] & bit_SSE) res = res | SUPPORT_SSE;
|
|
if ((unsigned int)reg[3] & bit_SSE2) res = res | SUPPORT_SSE2;
|
|
|
|
#endif
|
|
|
|
return res & ~_dwDisabledISA;
|
|
|
|
#else
|
|
|
|
/// One of these is true:
|
|
/// 1) We don't want optimizations.
|
|
/// 2) Using an unsupported compiler.
|
|
/// 3) Running on a non-x86 platform.
|
|
return 0;
|
|
|
|
#endif
|
|
}
|